/* ===========================
   MobileViewer.pro - Styles
   Design: Dark futuristic with electric accents
=========================== */

:root {
  --bg: #080c14;
  --bg-2: #0d1220;
  --bg-3: #111827;
  --surface: #141c2e;
  --surface-2: #1a2540;
  --border: rgba(99,120,180,0.18);
  --border-bright: rgba(99,160,255,0.3);
  --accent: #3d8eff;
  --accent-2: #00d4ff;
  --accent-glow: rgba(61,142,255,0.35);
  --accent-2-glow: rgba(0,212,255,0.25);
  --text: #e8edf7;
  --text-2: #8896b3;
  --text-3: #4a5880;
  --white: #ffffff;
  --danger: #ff4d6a;
  --success: #00d084;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 99px; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ─────────────── HEADER ─────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(8,12,20,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px var(--accent-glow);
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 400;
  padding: 6px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-link:hover { color: var(--text); background: var(--surface); }
.nav-link.active { color: var(--accent-2); }
.header-actions { display: flex; gap: 10px; align-items: center; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { font-size: 1rem; padding: 12px 16px; }

/* ─────────────── BUTTONS ─────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  box-shadow: 0 0 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px var(--accent-glow), 0 8px 24px rgba(0,0,0,0.3);
}
.btn-ghost {
  background: var(--surface);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--text); border-color: var(--border-bright); }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; border-radius: 8px; }
.btn-lg { padding: 16px 36px; font-size: 1rem; border-radius: 12px; }

/* ─────────────── HERO ─────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,120,180,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,120,180,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 0%, transparent 80%);
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: blobFloat 8s ease-in-out infinite;
  pointer-events: none;
}
.blob-1 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(61,142,255,0.18), transparent 70%); top: -100px; left: -100px; animation-delay: 0s; }
.blob-2 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(0,212,255,0.12), transparent 70%); top: 200px; right: -80px; animation-delay: -3s; }
.blob-3 { width: 350px; height: 350px; background: radial-gradient(circle, rgba(130,80,255,0.1), transparent 70%); bottom: 0; left: 40%; animation-delay: -5s; }
@keyframes blobFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(20px,-20px) scale(1.05); }
  66% { transform: translate(-15px,15px) scale(0.97); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(61,142,255,0.1);
  border: 1px solid rgba(61,142,255,0.3);
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--accent-2);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 20px;
}
.hero-text h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.08rem;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; align-items: center; gap: 20px; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.stat strong { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--white); line-height: 1; }
.stat span { font-size: 0.75rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-sep { width: 1px; height: 36px; background: var(--border); }

/* Device Showcase */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.device-showcase { position: relative; width: 340px; height: 500px; }
.device.phone {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.device-frame {
  position: relative;
  background: linear-gradient(145deg, #1e2d50, #0f1a30);
  border-radius: 38px;
  padding: 14px 10px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    inset 0 0 0 1px rgba(255,255,255,0.04),
    0 30px 80px rgba(0,0,0,0.6),
    0 0 60px rgba(61,142,255,0.15);
  width: 200px;
}
.device-notch {
  width: 60px; height: 10px;
  background: #080c14;
  border-radius: 99px;
  margin: 0 auto 8px;
}
.device-screen {
  background: var(--bg);
  border-radius: 26px;
  overflow: hidden;
  aspect-ratio: 9/19.5;
  position: relative;
}
.screen-browser { display: flex; flex-direction: column; height: 100%; }
.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.browser-bar.small { padding: 4px 7px; }
.browser-dots { display: flex; gap: 3px; }
.browser-dots span { width: 5px; height: 5px; border-radius: 50%; background: var(--text-3); }
.browser-dots span:nth-child(1) { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:nth-child(3) { background: #28c840; }
.browser-url {
  flex: 1;
  background: var(--bg-3);
  border-radius: 4px;
  font-size: 7px;
  color: var(--text-3);
  padding: 2px 5px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.browser-url.small { font-size: 6px; }
.screen-iframe { flex: 1; border: none; width: 100%; pointer-events: none; }
.screen-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  text-align: center;
  color: var(--text-3);
}
.screen-placeholder p { font-size: 9px; line-height: 1.4; }
.screen-placeholder svg { opacity: 0.4; }
.device-home-bar {
  width: 50px; height: 3px;
  background: rgba(255,255,255,0.2);
  border-radius: 99px;
  margin: 8px auto 0;
}

.floating-tablet {
  position: absolute;
  right: -60px;
  bottom: 20px;
  z-index: 1;
  transform: rotate(-8deg);
  animation: tabletFloat 6s ease-in-out infinite;
}
@keyframes tabletFloat {
  0%, 100% { transform: rotate(-8deg) translateY(0); }
  50% { transform: rotate(-8deg) translateY(-12px); }
}
.device.tablet .device-frame {
  width: 120px;
  border-radius: 18px;
  padding: 8px 6px;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.06), 0 15px 40px rgba(0,0,0,0.5);
}
.tablet-screen { aspect-ratio: 4/3; }
.tablet-content-preview { flex: 1; padding: 6px; display: flex; flex-direction: column; gap: 4px; overflow: hidden; }
.tcp-nav { height: 6px; background: var(--surface); border-radius: 3px; }
.tcp-hero { background: var(--surface); border-radius: 4px; padding: 6px; display: flex; flex-direction: column; gap: 3px; }
.tcp-h { height: 5px; background: var(--accent); border-radius: 2px; width: 70%; }
.tcp-p { height: 3px; background: var(--text-3); border-radius: 1px; opacity: 0.5; }
.tcp-p.short { width: 50%; }
.tcp-btn { height: 5px; width: 30%; background: var(--accent); border-radius: 2px; opacity: 0.7; margin-top: 2px; }
.tcp-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 3px; flex: 1; }
.tcp-card { background: var(--surface); border-radius: 3px; }

/* ─────────────── VIEWER SECTION ─────────────── */
.viewer-section {
  padding: 80px 0;
  background: var(--bg-2);
  position: relative;
}
.viewer-header { text-align: center; margin-bottom: 36px; }
.viewer-header h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.viewer-header p { color: var(--text-2); font-size: 0.95rem; }

/* URL Bar */
.url-bar-wrap { margin-bottom: 16px; }
.url-input-group {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.url-input-group:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.url-icon { margin-left: 16px; color: var(--text-3); flex-shrink: 0; }
.url-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 14px 12px;
}
.url-input::placeholder { color: var(--text-3); }
.btn-load { border-radius: 0 11px 11px 0; padding: 0 24px; height: 100%; }

/* Device Picker */
.device-picker {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.device-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}
.device-btn:hover { border-color: var(--border-bright); color: var(--text); background: var(--surface-2); }
.device-btn.active { background: rgba(61,142,255,0.15); border-color: var(--accent); color: var(--accent-2); }

/* Viewer Tools */
.viewer-tools {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.tool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font-body);
  font-size: 0.82rem;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}
.tool-btn:hover { background: var(--surface-2); color: var(--text); border-color: var(--border-bright); }
.zoom-ctrl { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.zoom-btn { padding: 8px 12px; font-size: 1rem; line-height: 1; }
#zoomLevel { font-size: 0.82rem; color: var(--text-2); min-width: 36px; text-align: center; }

/* Stage */
.viewer-stage { display: grid; grid-template-columns: 1fr 260px; gap: 24px; align-items: start; }
.stage-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.82rem;
  color: var(--text-2);
  grid-column: 1;
}
.stage-info { grid-column: 1 / -1; }
.dim-sep { color: var(--text-3); }
.stage-info strong, .stage-info span { }

/* Preview Device */
.preview-wrap {
  display: flex;
  justify-content: center;
  padding: 30px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-height: 600px;
  align-items: flex-start;
  overflow: hidden;
  position: relative;
}
.preview-device {
  position: relative;
  background: linear-gradient(145deg, #1e2d50, #0f1a30);
  border-radius: 40px;
  padding: 18px 14px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    inset 0 0 0 1px rgba(255,255,255,0.04),
    0 40px 100px rgba(0,0,0,0.7),
    0 0 80px rgba(61,142,255,0.12);
  transition: var(--transition);
  flex-shrink: 0;
}
.pd-notch {
  width: 80px; height: 12px;
  background: #050810;
  border-radius: 99px;
  margin: 0 auto 10px;
  transition: var(--transition);
}
.pd-screen {
  background: var(--bg);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
  transition: var(--transition);
}
.pd-iframe {
  display: block;
  border: none;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}
.pd-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 30px;
  text-align: center;
  background: var(--bg);
  z-index: 1;
}
.pd-placeholder.hidden { display: none; }
.pdp-icon { color: var(--text-3); opacity: 0.4; }
.pd-placeholder h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-2);
  font-weight: 600;
}
.pd-placeholder p { font-size: 0.85rem; color: var(--text-3); max-width: 200px; }
.pdp-hints { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }
.pdp-hint {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--text-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
}
.pd-home-bar {
  width: 60px; height: 4px;
  background: rgba(255,255,255,0.18);
  border-radius: 99px;
  margin: 12px auto 0;
  transition: var(--transition);
}
.pd-side-btn {
  position: absolute;
  width: 3px;
  background: rgba(255,255,255,0.12);
  border-radius: 2px;
  top: 120px;
}
.pd-side-btn.left { left: -3px; height: 50px; }
.pd-side-btn.right { right: -3px; height: 36px; top: 100px; }

/* Sidebar */
.viewer-sidebar { display: flex; flex-direction: column; gap: 16px; }
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.sidebar-card h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.83rem;
}
.info-row:last-child { border-bottom: none; }
.info-row span { color: var(--text-3); }
.info-row strong { color: var(--text); font-weight: 500; }

/* Quick device list */
.quick-device-list { display: flex; flex-direction: column; gap: 4px; }
.qd-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-2);
  border: 1px solid transparent;
  transition: var(--transition);
}
.qd-item:hover { background: var(--surface-2); color: var(--text); }
.qd-item.active { background: rgba(61,142,255,0.1); border-color: rgba(61,142,255,0.25); color: var(--accent-2); }
.qd-dim { font-size: 0.75rem; color: var(--text-3); }

/* Custom size */
.custom-size { display: grid; grid-template-columns: 1fr auto 1fr; gap: 8px; align-items: center; }
.custom-size input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 8px 10px;
  outline: none;
  width: 100%;
  transition: var(--transition);
}
.custom-size input:focus { border-color: var(--accent); }
.custom-size span { color: var(--text-3); text-align: center; font-size: 0.85rem; }
#applyCustom { grid-column: 1 / -1; width: 100%; justify-content: center; }

/* ─────────────── SECTIONS SHARED ─────────────── */
section { padding: 100px 0; }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-2);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub { font-size: 1rem; color: var(--text-2); max-width: 600px; margin-bottom: 60px; }

/* ─────────────── FEATURES ─────────────── */
.features-section { background: var(--bg-3); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.feature-card--large {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--surface), rgba(61,142,255,0.06));
  border-color: rgba(61,142,255,0.2);
}
.fc-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(61,142,255,0.15), rgba(0,212,255,0.1));
  border: 1px solid rgba(61,142,255,0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-2);
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.feature-card p { font-size: 0.88rem; color: var(--text-2); line-height: 1.65; }
.fc-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 16px;
  margin-top: 16px;
}
.fc-list li {
  font-size: 0.83rem;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.fc-list li::before {
  content: '';
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ─────────────── HOW IT WORKS ─────────────── */
.how-section { background: var(--bg); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: var(--transition);
}
.step:hover { border-color: var(--border-bright); }
.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(61,142,255,0.15);
  line-height: 1;
  position: absolute;
  top: 24px;
  right: 24px;
}
.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.step-content p { font-size: 0.88rem; color: var(--text-2); line-height: 1.65; }
.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  display: none;
}
.step-arrow.hidden { opacity: 0; }
.steps { display: flex; gap: 20px; align-items: stretch; }
.step { flex: 1; }

/* ─────────────── DEVICES SECTION ─────────────── */
.devices-section { background: var(--bg-2); }
.device-category-tabs { display: flex; gap: 8px; margin-bottom: 36px; }
.dcat-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}
.dcat-btn:hover { border-color: var(--border-bright); color: var(--text); }
.dcat-btn.active { background: rgba(61,142,255,0.12); border-color: var(--accent); color: var(--accent-2); }
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.device-grid-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.device-grid-card:hover {
  border-color: var(--accent);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.dgc-name { font-size: 0.88rem; font-weight: 500; color: var(--text); }
.dgc-dim { font-size: 0.78rem; color: var(--text-3); }
.dgc-os { font-size: 0.72rem; color: var(--accent-2); }
.dgc-icon { font-size: 1.4rem; margin-bottom: 4px; }

/* ─────────────── USE CASES ─────────────── */
.usecases-section { background: var(--bg-3); }
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.usecase-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.usecase-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.uc-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, rgba(61,142,255,0.12), rgba(0,212,255,0.08));
  border: 1px solid rgba(61,142,255,0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-2);
}
.usecase-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.usecase-card p { font-size: 0.88rem; color: var(--text-2); line-height: 1.65; margin-bottom: 16px; }
.uc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.uc-tags span {
  background: rgba(61,142,255,0.08);
  border: 1px solid rgba(61,142,255,0.15);
  color: var(--text-3);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 99px;
}

/* ─────────────── CONTENT SECTION ─────────────── */
.content-section { background: var(--bg); }
.content-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; align-items: start; }
.content-main h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}
.content-main h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  margin: 28px 0 12px;
}
.content-main p {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 16px;
}
.content-main strong { color: var(--text); }
.content-side { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 90px; }
.content-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.content-box h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.content-list { list-style: none; }
.content-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-2);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.content-list li:last-child { border-bottom: none; }
.content-list li::before {
  content: '→';
  color: var(--accent);
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ─────────────── FAQ ─────────────── */
.faq-section { background: var(--bg-2); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--border-bright); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}
.faq-q:hover { color: var(--white); }
.faq-chevron { flex-shrink: 0; color: var(--text-3); transition: var(--transition); }
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--accent-2); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.open .faq-a { max-height: 300px; }
.faq-a p {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ─────────────── CTA ─────────────── */
.cta-section { background: var(--bg-3); padding: 80px 0; }
.cta-inner {
  position: relative;
  background: linear-gradient(135deg, rgba(61,142,255,0.08), rgba(0,212,255,0.05));
  border: 1px solid rgba(61,142,255,0.2);
  border-radius: var(--radius-xl);
  padding: 70px 60px;
  text-align: center;
  overflow: hidden;
}
.cta-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,140,220,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,140,220,0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  border-radius: inherit;
}
.cta-text { position: relative; z-index: 1; }
.cta-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cta-text p { color: var(--text-2); font-size: 1rem; margin-bottom: 32px; }

/* ─────────────── FOOTER ─────────────── */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 0.88rem; color: var(--text-3); margin-top: 14px; max-width: 280px; line-height: 1.65; }
.footer-col h5 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--text-3);
  text-decoration: none;
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-3);
}
.footer-bottom a { color: var(--text-3); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent-2); }

/* ─────────────── TOAST ─────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface-2);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-size: 0.88rem;
  padding: 12px 20px;
  border-radius: 10px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition);
  pointer-events: none;
  max-width: 320px;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────── RESPONSIVE ─────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-sub, .hero-cta, .hero-stats { justify-content: center; }
  .hero-visual { justify-content: center; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-card--large { grid-column: span 2; }
  .usecases-grid { grid-template-columns: 1fr 1fr; }
  .viewer-stage { grid-template-columns: 1fr; }
  .viewer-sidebar { display: grid; grid-template-columns: repeat(3,1fr); }
  .content-grid { grid-template-columns: 1fr; }
  .content-side { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .header-nav, .header-actions { display: none; }
  .hamburger { display: flex; }
  .hero-inner { padding-top: 20px; }
  .device-showcase { width: 240px; height: 360px; }
  .device-frame { width: 150px; }
  .floating-tablet { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-column: span 1; }
  .steps { flex-direction: column; }
  .usecases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cta-inner { padding: 40px 24px; }
  .viewer-sidebar { grid-template-columns: 1fr; }
  .hero-stats { gap: 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .device-picker { gap: 4px; }
  .device-btn { font-size: 0.75rem; padding: 6px 10px; }
  .viewer-tools { gap: 6px; }
  .tool-btn { font-size: 0.78rem; padding: 7px 10px; }
  .custom-size { grid-template-columns: 1fr auto 1fr; }
}