/* ============================================================
   ORI-ON — OPTIX  |  style.css
   Cold Steel + Neon Blue Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  --bg:          #05080f;
  --surface:     #0b1320;
  --surface-2:   #0f1a2b;
  --surface-3:   #132033;
  --border:      #1b3554;
  --border-dim:  #11243a;
  --accent:      #00aaff;
  --accent-dim:  #007de8;
  --accent-glow: rgba(0, 170, 255, 0.18);
  --accent-glow-strong: rgba(0, 170, 255, 0.35);
  /* ── Highlight accent — change this one value to retheme ── */
  --highlight:      #a855f7;
  --highlight-dim:  #7e22ce;
  --highlight-glow: rgba(168, 85, 247, 0.28);

  --steel:       #8fb2e3;
  --text:        #d6e6ff;
  --text-muted:  #5a79a8;
  --text-dim:    #354f74;
  --danger:      #ff4560;
  --radius:      8px;
  --radius-lg:   14px;
  --transition:  0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ── Tab Sections ───────────────────────────────────────────── */
.tab-section {
  display: none;
  animation: fadeSlideIn 0.3s ease forwards;
}

.tab-section.active {
  display: block;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Hero ──────────────────────────────────────────────────── */
/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
  height: 520px;
  background: #020509;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(180deg,
    rgba(2,5,9,0.15) 0%,
    rgba(2,5,9,0.45) 55%,
    rgba(2,5,9,1) 100%
  );
  z-index: 2;
}

.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  opacity: 0.85;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 0.6rem;
}

.hero-title .accent {
  color: var(--accent);
  text-shadow: 0 0 40px rgba(0,170,255,0.7), 0 0 80px rgba(0,170,255,0.3);
}

.hero-sub {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--steel);
  max-width: 540px;
  margin-bottom: 1.8rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* mobile hero */
@media (max-width: 768px) {
  .hero { height: 520px; }
  .hero-overlay { justify-content: flex-end; padding-bottom: 3rem; }
}
@media (max-width: 500px) {
  .hero { height: 580px; }
  .hero-title { font-size: 2.4rem; }
  .hero-sub { font-size: 0.9rem; }
  .hero-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

.library-usage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
  margin: 1.5rem 0 2rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(0, 170, 255, 0.06), rgba(5, 8, 15, 0.95));
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35), 0 0 30px rgba(168, 85, 247, 0.05);
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.library-usage:hover {
  border-color: rgba(168, 85, 247, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45), 0 0 45px rgba(168, 85, 247, 0.12);
}

.library-usage::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(0, 170, 255, 0.2), transparent 45%),
              radial-gradient(circle at 80% 0%, rgba(168, 85, 247, 0.22), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.library-usage-info,
.library-usage-panel {
  position: relative;
  z-index: 1;
}

.library-usage-badges {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.library-usage-badges span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
}

.library-usage-cta {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  justify-content: center;
}

.library-usage-panel {
  background: rgba(6, 12, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  min-height: 220px;
  overflow: hidden;
}

.library-usage-panel-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 25% 20%, rgba(0, 170, 255, 0.3), transparent 40%),
              radial-gradient(circle at 75% 80%, rgba(168, 85, 247, 0.2), transparent 50%);
  filter: blur(28px);
  opacity: 1;
  animation: panelGlowPulse 4s ease-in-out infinite;
}
@keyframes panelGlowPulse {
  0%, 100% { opacity: 0.85; }
  50%       { opacity: 1; }
}

.library-usage-panel-title {
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.library-usage-panel-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--steel);
  line-height: 1.6;
}

.library-usage-panel-note {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

@media (max-width: 720px) {
  .library-usage {
    padding: 1.5rem;
  }
  .library-usage-cta {
    justify-content: flex-start;
  }
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  letter-spacing: 0.02em;
  font-family: 'Inter', sans-serif;
  position: relative;
  overflow: hidden;
}

/* Shimmer sweep on all buttons */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0%, rgba(255,255,255,0.18) 50%, transparent 100%);
  transform: translateX(-110%);
  transition: transform 0.55s ease;
  pointer-events: none;
}
.btn:hover::before {
  transform: translateX(110%);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #0099ee 100%);
  color: #021424;
  box-shadow: 0 0 20px var(--accent-glow-strong), 0 4px 16px rgba(0,0,0,0.3);
  animation: btnPulse 3s infinite;
}
@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow-strong), 0 4px 16px rgba(0,0,0,0.3); }
  50%       { box-shadow: 0 0 30px var(--accent-glow-strong), 0 4px 20px rgba(0,0,0,0.3); }
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2ddcff 0%, var(--accent) 100%);
  box-shadow: 0 0 38px rgba(0,170,255,0.7), 0 4px 20px rgba(0,0,0,0.35);
  transform: translateY(-2px);
  animation: none;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 18px rgba(0,170,255,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(0,170,255,0.08);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0,170,255,0.18), inset 0 0 16px rgba(0,170,255,0.05);
}
.btn-outline:active {
  transform: translateY(0);
}

/* ── Stats Bar ────────────────────────────────────────────── */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  margin-top: -1px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem 2.5rem;
  border-right: 1px solid var(--border);
  flex: 1;
  min-width: 140px;
}
.stat-item:last-child { border-right: none; }

.stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 16px var(--accent-glow);
  line-height: 1;
}

.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* ── Main Content Container ─────────────────────────────────── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Section Headings ────────────────────────────────────────── */
.section {
  padding: 5rem 0;
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.6rem;
  opacity: 0.8;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 560px;
  margin-bottom: 3rem;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

/* Animated top-edge glow line on hover */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--highlight) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.card:hover::before { opacity: 1; }

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-dim);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 24px rgba(0,170,255,0.2), inset 0 0 40px rgba(0,170,255,0.03);
}

.card-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.4rem;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Grid Layouts ────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.25rem;
}

/* ── USP Pillars ─────────────────────────────────────────── */
.pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

.pillar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  transition: border-color var(--transition), background var(--transition);
}

.pillar:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
}

.pillar-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  flex-shrink: 0;
}

/* ── Terminal Demo ───────────────────────────────────────── */
.terminal {
  background: #020608;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  margin: 3rem 0;
  box-shadow: 0 0 60px rgba(0,0,0,0.8), 0 0 30px var(--accent-glow);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.term-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.term-dot.r { background: #ff5f57; }
.term-dot.y { background: #febc2e; }
.term-dot.g { background: #28c840; }

.terminal-title {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.terminal-body {
  padding: 1.5rem 1.75rem;
}

.term-line { margin: 0.1rem 0; }

.term-prompt { color: var(--accent); }
.term-cmd    { color: #fff; }
.term-out    { color: var(--text-muted); }
.term-result { color: #58d6ff; }
.term-chain  { color: #ffd76a; }
.term-ok     { color: var(--accent); }

.cursor {
  display: inline-block;
  width: 9px; height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Tools Accordion ─────────────────────────────────────── */
.tools-section { margin: 3rem 0; }

.tools-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.tool-category {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 0.75rem;
  transition: border-color var(--transition);
}

.tool-category:hover { border-color: var(--accent-dim); }

.tool-cat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--surface);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}

.tool-cat-header:hover { background: var(--surface-2); }

.tool-cat-header.open { background: var(--surface-2); }

.tool-cat-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-cat-icon { font-size: 1.2rem; }

.tool-cat-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: #fff;
}

.tool-cat-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.15rem 0.65rem;
}

.tool-cat-chevron {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: transform var(--transition);
}
.tool-cat-header.open .tool-cat-chevron { transform: rotate(180deg); }

.tool-cat-body {
  display: none;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border-dim);
}
.tool-cat-body.open { display: block; }

.tool-cat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 0.5rem;
}

.tool-tag {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  background: var(--surface-3);
  border: 1px solid var(--border-dim);
  border-radius: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  color: var(--text);
  transition: border-color var(--transition), color var(--transition);
}

.tool-tag:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.tool-tag-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
  flex-shrink: 0;
}

/* ── Target Audience ─────────────────────────────────────── */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.audience-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  text-align: center;
  transition: all var(--transition);
}

.audience-card:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-3px);
  box-shadow: 0 0 20px var(--accent-glow);
}

.audience-icon { font-size: 2rem; margin-bottom: 0.6rem; }
.audience-name { font-size: 0.85rem; font-weight: 600; color: #fff; }
.audience-desc { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ── Pricing / Download ──────────────────────────────────── */
.pricing-hero {
  text-align: center;
  padding: 5rem 2rem;
  position: relative;
}

.price-glow-ring {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  box-shadow: 0 0 40px var(--accent-glow), inset 0 0 40px var(--accent-glow);
  background: radial-gradient(circle, rgba(0,170,255,0.08) 0%, transparent 70%);
  margin: 0 auto 2rem;
  animation: pulsering 3s ease-in-out infinite;
}

@keyframes pulsering {
  0%, 100% { box-shadow: 0 0 30px var(--accent-glow), inset 0 0 30px var(--accent-glow); }
  50%       { box-shadow: 0 0 60px var(--accent-glow-strong), inset 0 0 50px var(--accent-glow-strong); }
}

.price-amount {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.price-once {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.price-title {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.price-sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-width: 460px;
  margin: 0 auto 2.5rem;
  text-align: left;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  color: var(--text);
}

.feature-check {
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.pricing-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 1.5rem;
}

/* ── Library ─────────────────────────────────────────────── */
.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.lib-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition);
  cursor: default;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lib-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-dim);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 20px var(--accent-glow);
}

.lib-card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.lib-card-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.lib-card-title {
  font-size: 0.97rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.lib-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.lib-card-docs {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}

.lib-preview-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border-dim);
  transition: border-color var(--transition), background var(--transition);
}

.lib-preview-item--link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.lib-preview-item--link:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.lib-preview-item:hover {
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.lib-preview-item--dim { opacity: 0.4; }

.lib-preview-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--accent);
  background: rgba(0,170,255,0.1);
  border: 1px solid rgba(0,170,255,0.2);
  border-radius: 3px;
  padding: 0.1rem 0.4rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.lib-preview-title {
  font-size: 0.75rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lib-preview-more {
  font-size: 0.72rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  padding: 0.2rem 0.5rem;
  opacity: 0.7;
}

.lib-preview-more-btn {
  text-align: left;
  border: 1px solid var(--border-dim);
  border-radius: 5px;
  background: var(--surface-2);
  cursor: pointer;
}

.lib-preview-more-btn:hover {
  opacity: 1;
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.lib-card-footer {
  font-size: 0.75rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-dim);
}

.lib-card:hover .lib-card-footer { opacity: 0.8; }

.lib-coming-soon {
  display: inline-block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  margin-top: 0.5rem;
}

/* ── Support FAQ ─────────────────────────────────────────── */
.faq { margin-top: 2rem; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 0.6rem;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--surface);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  transition: background var(--transition);
  user-select: none;
}

.faq-question:hover { background: var(--surface-2); }
.faq-question.open { color: var(--accent); background: var(--surface-2); }

.faq-chevron {
  color: var(--text-muted);
  transition: transform var(--transition);
}
.faq-question.open .faq-chevron { transform: rotate(180deg); color: var(--accent); }

.faq-answer {
  display: none;
  padding: 1rem 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--border-dim);
  background: var(--surface);
}
.faq-answer.open { display: block; }

.support-cta {
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  margin-top: 3rem;
}

.support-cta h3 { font-size: 1.2rem; color: #fff; margin-bottom: 0.4rem; }
.support-cta p { font-size: 0.87rem; color: var(--text-muted); margin-bottom: 1.25rem; }

/* ── Contact ─────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 700px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info h3 { font-size: 1.1rem; color: #fff; margin-bottom: 1.5rem; }

.contact-row {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin-bottom: 1.2rem;
}

.contact-row-icon { font-size: 1.1rem; flex-shrink: 0; padding-top: 0.1rem; }
.contact-row-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.contact-row-value { font-size: 0.88rem; color: var(--text); margin-top: 0.15rem; }
.contact-row-value a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
.contact-row-value a:hover { opacity: 0.75; }

.opensource-card {
  background: linear-gradient(135deg, rgba(0,170,255,0.06) 0%, var(--surface) 60%);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 0 30px var(--accent-glow);
}

.opensource-card h3 { font-size: 1.1rem; color: var(--accent); margin-bottom: 0.75rem; }
.opensource-card p { font-size: 0.87rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1rem; }

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand { font-weight: 700; font-size: 0.9rem; color: var(--text-muted); }
.footer-brand span { color: var(--accent); }
.footer-note { font-size: 0.75rem; color: var(--text-dim); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav { gap: 0; }
  .nav-link .icon { display: none; }
}

/* ══════════════════════════════════════════════
   AUTH SYSTEM STYLES
══════════════════════════════════════════════ */

/* ── Session Indicator (topbar) ──────────────── */
.session-indicator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: 1rem;
}

.session-email {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.25rem 0.75rem;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-logout {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.25rem 0.65rem;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.session-logout:hover {
  color: var(--danger);
  border-color: var(--danger);
}

/* ── Auth Page Layout ─────────────────────────── */
.auth-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  background: var(--bg);
  position: relative;
  overflow-x: hidden;
}

.auth-bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0,170,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,170,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.7) 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.7) 0%, transparent 75%);
}

.auth-page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  padding: 2.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.purchase-page {
  max-width: 540px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  margin-bottom: 0.5rem;
}

/* ── Auth Card ───────────────────────────────── */
.auth-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 0 60px rgba(0,0,0,0.6), 0 0 30px var(--accent-glow);
}

.auth-card-header {
  margin-bottom: 1.75rem;
}

.auth-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  opacity: 0.8;
  margin-bottom: 0.4rem;
}

.auth-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.auth-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* ── Form Fields ─────────────────────────────── */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.field-input {
  width: 100%;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.field-input::placeholder { color: var(--text-dim); }

.field-input:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.field-hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.1rem;
}

/* ── Error and Success States ────────────────── */
.auth-error {
  background: rgba(255, 69, 96, 0.1);
  border: 1px solid rgba(255, 69, 96, 0.35);
  border-radius: var(--radius);
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--danger);
  margin-bottom: 0.75rem;
}

.auth-success {
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* ── Auth Buttons ────────────────────────────── */
.auth-btn {
  width: 100%;
  justify-content: center;
  font-size: 0.9rem;
  padding: 0.8rem 1.5rem;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-dim);
  font-size: 0.75rem;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--border);
}

.auth-footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-dim);
}

.auth-link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.83rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity var(--transition);
}
.auth-link-btn:hover { opacity: 0.7; }

.auth-back {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.auth-back:hover { color: var(--accent); }

/* ── Forgot / Re-download Panel ──────────────── */
.forgot-panel {
  display: none;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.forgot-header {
  margin-bottom: 1rem;
}

/* ── Security Key Display (modal) ────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeSlideIn 0.25s ease;
}

.modal-card {
  background: var(--surface);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 80px var(--accent-glow-strong), 0 0 30px rgba(0,0,0,0.8);
}

.modal-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.4rem;
}
.modal-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.key-display-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #020608;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 0 20px var(--accent-glow);
}

.key-display {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-align: left;
  word-break: break-all;
}

.key-copy-btn {
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.key-copy-btn:hover { background: rgba(0,170,255,0.25); border-color: var(--accent); }

.modal-warning {
  background: rgba(255,184,0,0.08);
  border: 1px solid rgba(255,184,0,0.3);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.78rem;
  color: #ffd76a;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.modal-details {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

/* ── Purchase Page Extras ────────────────────── */
.purchase-card {
  margin-top: 1rem;
}

.purchase-key-info {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.key-info-icon { font-size: 1.5rem; flex-shrink: 0; }

.purchase-features {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--surface-3);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}

.purchase-features .feature-item { font-size: 0.82rem; }

/* ── Robust Library Module Lists ───────────────────── */
.lib-module-list {
  list-style: none;
  margin: 1rem 0 0 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.75rem;
}

.lib-module-list li {
  font-size: 0.78rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.4rem;
}

.lib-module-list li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* ── Competitor Comparison ─────────────────────────── */
.comparison-section {
  margin: 4rem 1rem;
  overflow-x: auto;
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.9rem;
}

.comp-table th, .comp-table td {
  padding: 1.2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.comp-table th:last-child,
.comp-table td:last-child {
  border-right: none;
}

.comp-table th {
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.comp-table .feature-col {
  text-align: left;
  font-weight: 500;
  padding-left: 1.5rem;
  width: 25%;
}

.comp-table .optix-col {
  background: rgba(0, 170, 255, 0.05);
  border-left: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  color: var(--accent);
  font-weight: bold;
}

.comp-table .optix-col.price {
  font-size: 1.1rem;
}

.comp-table tr:last-child th, .comp-table tr:last-child td {
  border-bottom: none;
}

.comp-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.savings-badge {
  display: inline-block;
  background: var(--accent);
  color: #000;
  font-size: 0.7rem;
  font-weight: 900;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: uppercase;
}

/* ── Library Modal ─────────────────────────────────────────── */
.lib-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(7, 9, 11, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  animation: modalFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lib-modal-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.8), 0 0 30px var(--accent-glow);
  padding: 3rem;
}

.lib-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition);
}
.lib-modal-close:hover { color: var(--accent); }

.lib-modal-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
}

.lib-modal-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.lib-manual-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.lib-manual-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  transition: all var(--transition);
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.2rem 1rem;
  align-items: start;
}

.lib-manual-item--locked {
  opacity: 0.45;
  cursor: default;
}

.lib-manual-item:not(.lib-manual-item--locked):hover {
  border-color: var(--accent);
  background: rgba(0,170,255,0.06);
  transform: translateX(4px);
}

.lib-manual-item-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  grid-column: 1 / -1;
  margin-bottom: 0.15rem;
}

.lib-manual-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--accent);
  background: rgba(0,170,255,0.1);
  border: 1px solid rgba(0,170,255,0.25);
  border-radius: 3px;
  padding: 0.1rem 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.lib-manual-soon {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-dim);
  background: var(--surface-3);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  padding: 0.1rem 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lib-manual-item h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
  grid-column: 1;
}

.lib-manual-item p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  grid-column: 1;
}

.lib-manual-arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  grid-column: 2;
  grid-row: 2 / 4;
  align-self: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.lib-manual-item:not(.lib-manual-item--locked):hover .lib-manual-arrow {
  opacity: 1;
}

.lib-card { cursor: pointer; }

@media (max-width: 768px) {
  .topbar { padding: 0 1rem; }
  .nav-link { padding: 0.45rem 0.6rem; font-size: 0.75rem; gap: 0.25rem; }
  .nav-link .icon { font-size: 0.85rem; }
  .nav-cta { margin-left: 0.4rem; padding: 0.4rem 0.8rem; font-size: 0.75rem; }
  
  .comp-table {
    font-size: 0.8rem;
    min-width: 600px;
  }
  .comp-table th, .comp-table td {
    padding: 0.75rem 0.5rem;
  }
  .comparison-section {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -1rem;
    padding: 0 1rem;
  }
  .lib-modal-content { padding: 2rem 1.5rem; }
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}


/* ============================================================
   FUTURISTIC PURCHASE PAGE ANIMATIONS
   Cyberpunk aesthetic matching mobile site
============================================================ */

/* Animated background grid for auth pages */
.auth-bg-grid {
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(40px, 40px); }
}

/* Glowing animated cards */
.auth-card {
  position: relative;
  overflow: hidden;
  animation: cardPulse 3s ease-in-out infinite;
  box-shadow: 
    0 0 60px rgba(0,0,0,0.6), 
    0 0 30px var(--accent-glow),
    inset 0 0 30px rgba(0, 217, 255, 0.05);
}

@keyframes cardPulse {
  0%, 100% { 
    box-shadow: 
      0 0 60px rgba(0,0,0,0.6), 
      0 0 30px var(--accent-glow),
      inset 0 0 30px rgba(0, 217, 255, 0.05);
  }
  50% { 
    box-shadow: 
      0 0 80px rgba(0,0,0,0.8), 
      0 0 50px rgba(0, 217, 255, 0.3),
      inset 0 0 40px rgba(0, 217, 255, 0.08);
  }
}

/* Shimmer effect on cards */
.auth-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(0, 217, 255, 0.08) 50%,
    transparent 70%
  );
  animation: shimmer 4s linear infinite;
  pointer-events: none;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Glowing price ring animation */
.price-glow-ring {
  animation: pulsering 3s ease-in-out infinite, float 4s ease-in-out infinite;
  box-shadow: 
    0 0 40px var(--accent-glow), 
    inset 0 0 40px var(--accent-glow),
    0 0 60px rgba(0, 217, 255, 0.2);
}

@keyframes pulsering {
  0%, 100% { 
    box-shadow: 
      0 0 30px var(--accent-glow), 
      inset 0 0 30px var(--accent-glow),
      0 0 40px rgba(0, 217, 255, 0.15);
  }
  50% { 
    box-shadow: 
      0 0 60px var(--accent-glow-strong), 
      inset 0 0 50px var(--accent-glow-strong),
      0 0 80px rgba(0, 217, 255, 0.3);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Glowing input fields */
.field-input {
  position: relative;
  transition: all 0.3s ease;
}

.field-input:focus {
  border-color: var(--accent);
  box-shadow: 
    0 0 0 3px var(--accent-glow),
    0 0 20px rgba(0, 217, 255, 0.2);
  transform: translateY(-2px);
}

/* Animated purchase features */
.purchase-features {
  position: relative;
  overflow: hidden;
}

.purchase-features::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 217, 255, 0.1),
    transparent
  );
  animation: slideAcross 3s ease-in-out infinite;
}

@keyframes slideAcross {
  0% { left: -100%; }
  100% { left: 100%; }
}

.purchase-features .feature-item {
  animation: fadeInUp 0.5s ease-out backwards;
}

.purchase-features .feature-item:nth-child(1) { animation-delay: 0.1s; }
.purchase-features .feature-item:nth-child(2) { animation-delay: 0.2s; }
.purchase-features .feature-item:nth-child(3) { animation-delay: 0.3s; }
.purchase-features .feature-item:nth-child(4) { animation-delay: 0.4s; }
.purchase-features .feature-item:nth-child(5) { animation-delay: 0.5s; }
.purchase-features .feature-item:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Glowing feature checks */
.feature-check {
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { 
    opacity: 1;
    text-shadow: 0 0 5px var(--accent);
  }
  50% { 
    opacity: 0.7;
    text-shadow: 0 0 10px var(--accent);
  }
}

/* Security key info box glow */
.purchase-key-info {
  position: relative;
  animation: infoGlow 3s ease-in-out infinite;
  border: 1px solid rgba(0, 217, 255, 0.3);
}

@keyframes infoGlow {
  0%, 100% { 
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.1);
    border-color: rgba(0, 217, 255, 0.3);
  }
  50% { 
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
    border-color: rgba(0, 217, 255, 0.5);
  }
}

/* PayPal container glow */
#paypal-container {
  position: relative;
  border-radius: var(--radius);
  padding: 0.5rem;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.03), rgba(168, 85, 247, 0.03));
  animation: containerPulse 4s ease-in-out infinite;
}

@keyframes containerPulse {
  0%, 100% { 
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.1);
  }
  50% { 
    box-shadow: 0 0 25px rgba(0, 217, 255, 0.2);
  }
}

/* Animated buttons */
.btn-primary {
  position: relative;
  overflow: hidden;
  animation: btnGlow 2s ease-in-out infinite;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 70%
  );
  animation: btnShimmer 3s linear infinite;
}

@keyframes btnGlow {
  0%, 100% { 
    box-shadow: 0 0 20px var(--accent-glow-strong);
  }
  50% { 
    box-shadow: 0 0 35px rgba(0, 170, 255, 0.6);
  }
}

@keyframes btnShimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Hover effects */
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(0, 170, 255, 0.7);
}

/* Pricing hero animations */
.pricing-hero {
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Price amount glow */
.price-amount {
  text-shadow: 
    0 0 20px var(--accent),
    0 0 40px rgba(0, 217, 255, 0.5);
  animation: priceGlow 2s ease-in-out infinite;
}

@keyframes priceGlow {
  0%, 100% { 
    text-shadow: 
      0 0 20px var(--accent),
      0 0 40px rgba(0, 217, 255, 0.5);
  }
  50% { 
    text-shadow: 
      0 0 30px var(--accent),
      0 0 60px rgba(0, 217, 255, 0.7);
  }
}

/* Responsive: reduce animations on mobile for performance */
@media (max-width: 768px) {
  .auth-card::after,
  .btn-primary::before,
  .purchase-features::before {
    animation: none;
  }
  
  .auth-card,
  .price-glow-ring,
  .brand-logo {
    animation-duration: 4s;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Download Options ──────────────────────────────────────────────── */
.dl-detected {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.dl-detected-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: dlPulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes dlPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.dl-options {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.dl-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.75rem;
  background: var(--surface);
  border: 1.5px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  color: var(--text);
  text-decoration: none;
  min-width: 280px;
  transition: all var(--transition);
  box-shadow: 0 0 20px var(--accent-glow);
  cursor: pointer;
}

.dl-btn:hover {
  border-color: var(--accent);
  background: var(--surface-2);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,170,255,0.3);
}

.dl-btn-disabled {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.75rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  min-width: 280px;
  opacity: 0.5;
  cursor: not-allowed;
}

.dl-btn-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.dl-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  flex: 1;
}

.dl-btn-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
}

.dl-btn-disabled .dl-btn-label {
  color: var(--text-muted);
}

.dl-btn-sub {
  font-size: 0.75rem;
  color: var(--accent);
  margin-top: 0.15rem;
  font-family: 'JetBrains Mono', monospace;
}

.dl-btn-disabled .dl-btn-sub {
  color: var(--text-dim);
}

.dl-btn-arrow {
  font-size: 1.2rem;
  color: var(--accent);
  transition: transform var(--transition);
}

.dl-btn:hover .dl-btn-arrow {
  transform: translateY(3px);
}

.dl-switch-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ── Community Hub ─────────────────────────────────────────────────── */
.comm-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.comm-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.65rem 1.25rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -1px;
  letter-spacing: 0.02em;
}

.comm-tab:hover { color: var(--text); }

.comm-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.comm-panel {
  display: none;
  animation: fadeSlideIn 0.25s ease forwards;
}

.comm-panel.active { display: block; }

.comm-panel-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .comm-panel-inner { grid-template-columns: 1fr; }
}

.comm-panel-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}

.comm-panel-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.comm-benefits {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.comm-benefit {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.83rem;
  color: var(--text);
}

.comm-benefit-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  flex-shrink: 0;
}

.comm-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Android Edition Section (Desktop) ─────────────────────────────── */
.android-edition-section {
  background: linear-gradient(180deg,
    var(--bg) 0%,
    rgba(0, 170, 255, 0.04) 40%,
    var(--bg) 100%
  );
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.android-edition-wrap {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 960px) {
  .android-edition-wrap {
    grid-template-columns: 1fr;
  }
  .android-edition-visual {
    display: flex;
    justify-content: center;
  }
}

.android-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.android-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.android-feature-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.android-feature-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.2rem;
}

.android-feature-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Phone Mockup */
.android-edition-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-glow {
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(0,170,255,0.2) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.phone-mockup {
  position: relative;
  z-index: 1;
  width: 240px;
  background: #080d14;
  border: 1.5px solid var(--accent-dim);
  border-radius: 32px;
  padding: 12px;
  box-shadow:
    0 0 0 1px rgba(0,170,255,0.1),
    0 24px 60px rgba(0,0,0,0.8),
    0 0 40px rgba(0,170,255,0.15);
}

.phone-notch {
  width: 60px;
  height: 8px;
  background: #0b1320;
  border-radius: 4px;
  margin: 0 auto 10px;
  border: 1px solid var(--border);
}

.phone-screen {
  background: var(--bg);
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border-dim);
}

.phone-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px 6px;
  background: var(--surface);
  border-bottom: 1px solid var(--border-dim);
}

.phone-hero-text {
  padding: 10px 12px;
  background: rgba(0,170,255,0.05);
  border-bottom: 1px solid var(--border-dim);
}

.phone-tool-list {
  padding: 6px 0;
}

.phone-tool-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 0.62rem;
  color: var(--text-muted);
  transition: background 0.2s;
}

.phone-tool-item.active {
  background: rgba(0,170,255,0.08);
  color: var(--text);
}

.phone-tool-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  flex-shrink: 0;
}

.phone-tool-item.active .phone-tool-dot {
  opacity: 1;
  box-shadow: 0 0 4px var(--accent);
}

.phone-tool-badge {
  margin-left: auto;
  font-size: 0.55rem;
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--surface-3);
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
}

.phone-tool-item.active .phone-tool-badge {
  background: rgba(0,170,255,0.1);
  border-color: var(--accent-dim);
  color: var(--accent);
}

.phone-bot-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--surface);
  border-top: 1px solid var(--border-dim);
}

/* ── Library Gate (unauthenticated modal state) ─────────────────── */
.lib-gate {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem 0 0.5rem;
}

.lib-gate-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  filter: grayscale(0.3);
}

.lib-gate-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.6rem;
}

.lib-gate-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.lib-gate-preview {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.lib-gate-preview-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface-2);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  opacity: 0.7;
}

/* ════════════════════════════════════════════════════════════════
   HIGHLIGHT ACCENT — subtle orange outlines on key elements
   To change the colour: update --highlight in :root above.
   ════════════════════════════════════════════════════════════════ */

/* Hero title accent word */
.hero-title .accent {
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent), 0 0 60px var(--accent-glow-strong);
}

/* Primary CTA buttons — orange outline glow on hover */
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(0,170,255,0.55), 0 0 0 1px var(--highlight);
}

/* Nav CTA — no orange outline (removed) */

/* Brand logo — orange corner accent */
.brand-logo {
  position: relative;
}
.brand-logo::after {
  content: '';
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 6px;
  height: 6px;
  background: var(--highlight);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--highlight);
}

/* Active nav link — orange underline instead of blue */
.nav-link.active::after {
  background: var(--highlight) !important;
  box-shadow: 0 0 8px var(--highlight) !important;
}

/* Stat numbers — orange glow on the number itself */
.stat-number {
  position: relative;
}

/* Section label — orange left border */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 0.9em;
  background: var(--highlight);
  border-radius: 2px;
  box-shadow: 0 0 6px var(--highlight-glow);
  flex-shrink: 0;
}

/* Card hover — orange corner accent line */
.card:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5),
              0 0 20px var(--accent-glow),
              inset 0 0 0 1px var(--highlight-glow);
}

/* Lib card hover — orange top border flash */
.lib-card:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5),
              0 0 20px var(--accent-glow),
              0 -2px 0 0 var(--highlight);
}

/* Tool category header open state — orange left border */
.tool-cat-header.open {
  border-left: 2px solid var(--highlight);
}

/* Terminal bar dots — keep red/yellow/green but add orange glow to bar */
.terminal-bar {
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 var(--highlight-glow);
}

/* Price glow ring — orange outer ring */
.price-glow-ring {
  box-shadow: 0 0 40px var(--accent-glow),
              inset 0 0 40px var(--accent-glow),
              0 0 0 1px var(--highlight-dim);
}

/* Download button — orange sub-label */
.dl-btn-sub { color: var(--highlight) !important; }

/* Pillar hover — orange border */
.pillar:hover {
  border-color: var(--highlight);
  background: var(--highlight-glow);
  color: var(--text);
}

/* Comparison table Optix column header — orange top border */
.optix-col {
  border-top: 2px solid var(--highlight) !important;
}

/* Savings badge — orange */
.savings-badge {
  background: var(--highlight) !important;
  color: #fff !important;
}

/* Audience card hover — orange glow */
.audience-card:hover {
  border-color: var(--highlight);
  box-shadow: 0 0 16px var(--highlight-glow);
}

/* Feature check marks — orange */
.feature-check { color: var(--highlight); }

/* Comm benefit dots — orange */
.comm-benefit-dot {
  background: var(--highlight);
  box-shadow: 0 0 6px var(--highlight-glow);
}

/* ════════════════════════════════════════════════════════════════
   TOPBAR — 2026 redesign
   ════════════════════════════════════════════════════════════════ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 1.5rem;
  background: rgba(4, 7, 14, 0.82);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom: 1px solid rgba(0,170,255,0.14);
  box-shadow: 0 1px 0 rgba(0,170,255,0.08), 0 8px 48px rgba(0,0,0,0.6);
  overflow: hidden;
}

/* canvas sits behind everything */
.topbar-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.topbar > * { position: relative; z-index: 1; }

/* ── Brand ── */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  position: relative;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.brand-logo-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: -1px;
  background: linear-gradient(135deg, rgba(0,170,255,0.12), rgba(0,170,255,0.04));
  border: 1.5px solid rgba(0,170,255,0.5);
  border-radius: 10px;
  box-shadow: 0 0 18px rgba(0,170,255,0.25), inset 0 0 10px rgba(0,170,255,0.06);
  animation: logoPulse 4s ease-in-out infinite;
  z-index: 1;
}

.brand-logo-ring {
  position: absolute;
  inset: -5px;
  border-radius: 14px;
  border: 1px solid rgba(0,170,255,0.2);
  animation: ringExpand 3s ease-in-out infinite;
}

@keyframes logoPulse {
  0%,100% { box-shadow: 0 0 18px rgba(0,170,255,0.25), inset 0 0 10px rgba(0,170,255,0.06); }
  50%      { box-shadow: 0 0 32px rgba(0,170,255,0.5),  inset 0 0 16px rgba(0,170,255,0.12); }
}

@keyframes ringExpand {
  0%,100% { opacity: 0.5; transform: scale(1); }
  50%      { opacity: 0;   transform: scale(1.25); }
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(90deg, #fff 0%, #7dd3fc 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-dash { color: var(--accent); }

.brand-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.65;
}

/* ── Center nav ── */
.topbar-nav {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.nav-link {
  padding: 0.45rem 0.9rem;
  border-radius: 7px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  border: none;
  background: none;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: #fff;
  background: rgba(0,170,255,0.08);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(0,170,255,0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 25%;
  width: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent);
}

/* ── Right side ── */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ── CTA button ── */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  background: linear-gradient(135deg, var(--accent) 0%, #0077cc 100%);
  color: #021424;
  box-shadow: 0 0 22px rgba(0,170,255,0.4), 0 2px 8px rgba(0,0,0,0.4);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.4s;
}

.nav-cta:hover::before { left: 100%; }

.nav-cta:hover {
  background: linear-gradient(135deg, #2ddcff 0%, var(--accent) 100%);
  box-shadow: 0 0 36px rgba(0,170,255,0.65), 0 4px 16px rgba(0,0,0,0.4);
  transform: translateY(-1px);
}

.nav-cta-label {
  font-weight: 700;
}

.nav-cta-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  background: rgba(0,0,0,0.2);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

/* ── Hamburger (mobile only) ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: rgba(0,170,255,0.08);
  border: 1px solid rgba(0,170,255,0.2);
  border-radius: 8px;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: all 0.25s;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile nav drawer ── */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0; right: 0;
  background: rgba(4, 7, 14, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(0,170,255,0.15);
  flex-direction: column;
  padding: 1rem;
  gap: 0.25rem;
  z-index: 199;
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.mobile-nav-drawer.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.mobile-nav-drawer .nav-link {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  border-radius: 8px;
  width: 100%;
}

.mobile-nav-drawer .mobile-cta {
  margin-top: 0.5rem;
  width: 100%;
  justify-content: center;
  padding: 0.75rem;
  font-size: 0.9rem;
}

/* ── Mobile breakpoints ── */
@media (max-width: 900px) {
  .topbar { padding: 0 1.25rem; gap: 0.75rem; }
  .nav-link { padding: 0.4rem 0.6rem; font-size: 0.72rem; }
  .nav-cta { padding: 0.45rem 0.9rem; font-size: 0.75rem; }
  .nav-cta-price { display: none; }
  .brand-tagline { display: none; }
}

@media (max-width: 768px) {
  .topbar { padding: 0 1rem; height: 60px; }
  .topbar-nav { display: none; }
  .nav-hamburger { display: flex; }
  .mobile-nav-drawer { display: flex; }
  .nav-cta-price { display: none; }
  .nav-cta { padding: 0.45rem 0.9rem; font-size: 0.78rem; }
  .brand-tagline { display: none; }
}

@media (max-width: 400px) {
  .brand-name { font-size: 0.9rem; }
  .brand-logo { width: 32px; height: 32px; }
  .brand-logo-text { font-size: 0.75rem; border-radius: 8px; }
}

/* ── Richer body background — layered grids at different scales ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 170, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 170, 255, 0.025) 1px, transparent 1px),
    linear-gradient(rgba(0, 170, 255, 0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 170, 255, 0.012) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 20px 20px, 20px 20px;
  animation: gridDrift 30s linear infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes gridDrift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}

/* Radial vignette over the grid so edges fade */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(0, 170, 255, 0.07) 0%,
    transparent 60%
  );
  pointer-events: none;
  z-index: 0;
  animation: vignettePulse 8s ease-in-out infinite;
}

@keyframes vignettePulse {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; }
}

/* ════════════════════════════════════════════════════════════════
   POLISH PASS — Mobile responsiveness fixes
   ════════════════════════════════════════════════════════════════ */

/* ── Library grid — single column on small screens ── */
@media (max-width: 640px) {
  .lib-grid {
    grid-template-columns: 1fr;
  }
  .lib-card {
    padding: 1.1rem;
  }
  .lib-card-title { font-size: 0.9rem; }
  .lib-card-desc  { font-size: 0.75rem; }
  .lib-preview-title { font-size: 0.7rem; }
}

/* ── Library modal — full screen on mobile ── */
@media (max-width: 640px) {
  .lib-modal {
    padding: 0;
    align-items: flex-end;
  }
  .lib-modal-content {
    max-width: 100%;
    max-height: 92vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.5rem 1rem 2rem;
  }
  .lib-modal-title { font-size: 1.3rem; }
  .lib-manual-item { padding: 0.75rem 0.9rem; }
  .lib-manual-item h4 { font-size: 0.85rem; }
  .lib-manual-item p  { font-size: 0.72rem; }
  .lib-gate-title { font-size: 1.1rem; }
  .lib-gate-desc  { font-size: 0.82rem; }
}

/* ── Login modal card — full width on mobile ── */
@media (max-width: 500px) {
  .modal-card {
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.5rem 1rem;
  }
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .auth-card {
    padding: 1.25rem 1rem;
  }
  .auth-title { font-size: 1.4rem; }
}

/* ── Topbar — tighter on very small phones ── */
@media (max-width: 420px) {
  .topbar { padding: 0 0.75rem; height: 54px; }
  .nav-link { padding: 0.35rem 0.45rem; font-size: 0.7rem; }
  .brand-name { font-size: 0.9rem; }
  .brand-logo { width: 26px; height: 26px; font-size: 0.72rem; }
}

/* ── Community hub — stack on mobile ── */
@media (max-width: 640px) {
  .comm-tabs { gap: 0.25rem; }
  .comm-tab  { padding: 0.5rem 0.75rem; font-size: 0.8rem; }
  .comm-form { padding: 1.1rem; }
  .comm-panel-info h3 { font-size: 0.95rem; }
  .comm-panel-info p  { font-size: 0.82rem; }
}

/* ── Download options — stack on mobile ── */
@media (max-width: 640px) {
  .dl-options { flex-direction: column; }
  .dl-btn, .dl-btn-disabled { min-width: unset; width: 100%; }
}

/* ── Android edition — stack on mobile ── */
@media (max-width: 640px) {
  .android-edition-wrap { gap: 2rem; }
  .android-edition-visual { display: none; } /* hide phone mockup on small screens */
}

/* ── Stats bar — 2-col grid on mobile ── */
@media (max-width: 500px) {
  .stats-bar { display: grid; grid-template-columns: 1fr 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:nth-child(odd) { border-right: 1px solid var(--border); }
  .stat-item:last-child { grid-column: 1 / -1; border-bottom: none; }
}

/* ── Comparison table — horizontal scroll with hint ── */
@media (max-width: 768px) {
  .comparison-section::after {
    content: '← scroll →';
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-dim);
    padding: 0.5rem 0;
    font-family: 'JetBrains Mono', monospace;
  }
}

/* ── Section padding tighter on mobile — handled in comprehensive block below ── */

/* ── Docs page layout — responsive ── */
.docs-layout {
  display: flex;
  gap: 4rem;
  margin-top: 4rem;
  padding-bottom: 6rem;
}
.docs-sidebar {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  height: max-content;
}
.docs-main {
  flex: 1;
  max-width: 800px;
  background: var(--surface);
  padding: 3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

@media (max-width: 768px) {
  .docs-layout {
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
    padding: 0 1rem 4rem;
  }
  .docs-sidebar {
    width: 100%;
    position: static;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
  }
  .docs-sidebar h4 { margin-bottom: 0.75rem; }
  #doc-toc { flex-direction: row; flex-wrap: wrap; gap: 0.4rem; }
  #doc-toc li a {
    display: inline-block;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem !important;
  }
  .docs-main {
    padding: 1.5rem 1rem;
    max-width: 100%;
  }
  .docs-main h1 { font-size: 1.6rem !important; }
  .docs-main h2 { font-size: 1.1rem !important; }
  .docs-main pre { font-size: 0.72rem !important; }
}

/* ════════════════════════════════════════════════════════════════
   ABSTRACT HEADER CANVAS — circuit traces + constellation
   ════════════════════════════════════════════════════════════════ */

.topbar-canvas {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 62px;
  z-index: 99;
  pointer-events: none;
  overflow: hidden;
}

.topbar-svg {
  width: 100%;
  height: 100%;
}

/* Circuit trace lines */
.trace {
  stroke: rgba(0, 170, 255, 0.18);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 4 3;
  animation: traceDash 8s linear infinite;
}
.trace-dim {
  stroke: rgba(0, 170, 255, 0.08);
  stroke-dasharray: 3 5;
  animation-duration: 14s;
  animation-direction: reverse;
}

@keyframes traceDash {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -56; }
}

/* Circuit nodes */
.node {
  fill: rgba(0, 170, 255, 0.5);
  animation: nodePulse 3s ease-in-out infinite;
}
.node:nth-child(odd)  { animation-delay: -1.5s; }
.node:nth-child(3n)   { animation-delay: -0.8s; }

@keyframes nodePulse {
  0%, 100% { opacity: 0.4; r: 2; }
  50%       { opacity: 1;   r: 3.5; }
}

/* Highlight nodes — orange */
.node-hl {
  fill: var(--highlight);
  opacity: 0.7;
  animation: nodeHlPulse 4s ease-in-out infinite;
}
.node-hl:nth-child(2) { animation-delay: -1.3s; }
.node-hl:nth-child(3) { animation-delay: -2.6s; }

@keyframes nodeHlPulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 0.9; filter: drop-shadow(0 0 4px var(--highlight)); }
}

/* Constellation stars */
.star {
  fill: rgba(0, 170, 255, 0.35);
  animation: starTwinkle 4s ease-in-out infinite;
}
.star:nth-child(odd)  { animation-delay: -2s; }
.star:nth-child(3n)   { animation-delay: -1s; animation-duration: 5s; }
.star:nth-child(4n)   { animation-delay: -3s; animation-duration: 3.5s; }

@keyframes starTwinkle {
  0%, 100% { opacity: 0.2; }
  50%       { opacity: 0.8; }
}

/* Scan rect — sweeps across */
.scan-rect {
  fill: url(#scanGrad);
  opacity: 0.6;
  animation: scanSweep 7s ease-in-out infinite;
}

@keyframes scanSweep {
  0%   { transform: translateX(-10px); opacity: 0; }
  5%   { opacity: 0.6; }
  95%  { opacity: 0.6; }
  100% { transform: translateX(1620px); opacity: 0; }
}

/* Make sure topbar sits above the canvas */
.topbar { z-index: 100; }


/* ══════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE — comprehensive phone/tablet pass
   Targets ≤768px (tablet) and ≤500px (phone)
   Desktop layout is completely untouched above these breakpoints
   ══════════════════════════════════════════════════════════════ */

/* ── Nav: collapse — handled by new topbar block ── */
@media (max-width: 768px) {
  .nav { gap: 0; }
  .nav-link .icon { display: none; }
}

/* ── Hero: grow to fit content on mobile ── */
@media (max-width: 768px) {
  .hero-banner { height: 480px; object-position: center top; }
  .hero { min-height: 480px; }
  .hero-overlay { padding: 1.5rem; }
  .hero-sub { font-size: 0.95rem; max-width: 100%; }
  .hero-actions { gap: 0.75rem; }
}

@media (max-width: 500px) {
  .hero-banner { height: 560px; }
  .hero { min-height: 560px; }
  .hero-overlay {
    padding: 1.25rem 1rem;
    justify-content: flex-end;
    padding-bottom: 2.5rem;
  }
  .hero-title { font-size: 2.2rem; }
  .hero-sub { font-size: 0.88rem; }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* ── Library usage panel: stack vertically ── */
@media (max-width: 768px) {
  .library-usage {
    grid-template-columns: 1fr;
    padding: 1.25rem;
    gap: 1.25rem;
  }
  .library-usage-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .library-usage-cta .btn { width: 100%; justify-content: center; }
  .library-usage-panel { min-height: unset; }
}

/* ── Stats bar: 2-col on tablet, 2-col on phone ── */
@media (max-width: 768px) {
  .stats-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex-direction: unset;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .stat-item:nth-child(odd) { border-right: 1px solid var(--border); }
  .stat-item:last-child { grid-column: 1 / -1; border-bottom: none; }
}

/* ── Grid cards: single column on phone ── */
@media (max-width: 600px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

/* ── Terminal: horizontal scroll, smaller font ── */
@media (max-width: 768px) {
  .terminal { margin: 1.5rem 0; font-size: 0.75rem; }
  .terminal-body { padding: 1rem; overflow-x: auto; white-space: nowrap; }
}

/* ── Tool grid: 2-col on phone ── */
@media (max-width: 600px) {
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .tool-cat-header { padding: 0.85rem 1rem; }
  .tool-cat-body { padding: 1rem; }
}

/* ── Audience grid: 2-col on phone ── */
@media (max-width: 600px) {
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .audience-card { padding: 1rem; }
  .audience-icon { font-size: 1.5rem; }
}

/* ── Section headings and padding ── */
@media (max-width: 600px) {
  .section { padding: 2.5rem 0; }
  .container { padding: 0 1rem; }
  .section-title { font-size: 1.5rem; }
  .section-desc { font-size: 0.9rem; }
}

/* ── Comparison table: horizontal scroll ── */
@media (max-width: 768px) {
  .comparison-section { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .comp-table { min-width: 560px; }
}

/* ── FAQ: tighter padding ── */
@media (max-width: 600px) {
  .faq-question { padding: 1rem; font-size: 0.9rem; }
  .faq-answer { padding: 0 1rem 1rem; font-size: 0.85rem; }
}

/* ── Phone mockup section: hide visual, keep text ── */
@media (max-width: 600px) {
  .phone-wrap { display: none; }
  .android-edition-wrap { flex-direction: column; }
}

/* ── Pillars: wrap tighter ── */
@media (max-width: 600px) {
  .pillars { gap: 0.5rem; }
  .pillar { font-size: 0.78rem; padding: 0.4rem 0.85rem; }
}

/* ── Purchase / auth pages ── */
@media (max-width: 600px) {
  .purchase-page { padding: 1rem; }
  .auth-card { padding: 1.25rem 1rem; }
  .pricing-hero { padding: 2.5rem 1rem 1rem; }
  .price-glow-ring { width: 150px; height: 150px; }
  .price-amount { font-size: 2rem; }
  .price-title { font-size: 1.4rem; }
  .purchase-features { gap: 0.4rem; }
}

/* ── Footer: center and stack ── */
@media (max-width: 600px) {
  .footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    padding: 1.5rem 1rem;
  }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
}