:root {
  --bg-abyss: #040810;
  --bg-deep: #070E1B;
  --bg-surface: #0C1626;
  --bg-card: rgba(14, 24, 40, 0.72);
  --bg-card-hover: rgba(19, 33, 54, 0.88);
  --bg-glass: rgba(10, 18, 30, 0.78);

  --ocean-cyan: #33CCE6;
  --ocean-cyan-bright: #67E8F9;
  --ocean-blue: #1999E6;
  --ocean-teal: #26BFD9;
  --ocean-deep: #4D80E6;
  --ocean-emerald: #33CC99;
  --ocean-coral: #FF6666;
  --ocean-amber: #F59E0B;

  --text-primary: #F3F8FC;
  --text-secondary: #A5BED4;
  --text-muted: #6C869E;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-ocean: rgba(51, 204, 230, 0.32);
  --border-ocean-strong: rgba(51, 204, 230, 0.65);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 48px rgba(51, 204, 230, 0.22);

  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  text-autospace: normal;
  text-spacing-trim: trim-start;
}

:where(:root:lang(ja)) {
  font-kerning: none;
}

:where(h1, h2, h3, h4, .display-heading):lang(ja) {
  font-feature-settings: "palt";
  font-kerning: normal;
  word-break: auto-phrase;
}

:where(pre, code, time, input, textarea) {
  text-autospace: no-autospace;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-abyss);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-abyss);
  background-image:
    radial-gradient(1100px 650px at 80% 6%, rgba(51, 204, 230, 0.16), transparent 65%),
    radial-gradient(900px 600px at 15% 22%, rgba(25, 153, 230, 0.12), transparent 65%),
    radial-gradient(1000px 700px at 50% 62%, rgba(51, 204, 153, 0.07), transparent 70%);
  overflow-x: hidden;
  line-height: 1.75;
}

.ib {
  display: inline-block;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Subtle architectural grid background */
.ambient-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(51, 204, 230, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 204, 230, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 30%, black 20%, transparent 85%);
}

/* Sticky Navbar */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 20px;
  margin-top: 16px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  padding: 0 14px 0 18px;
  border-radius: var(--radius-pill);
  background: rgba(8, 15, 27, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(51, 204, 230, 0.22);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-link img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  box-shadow: 0 4px 14px rgba(51, 204, 230, 0.35);
  flex-shrink: 0;
}

.brand-name {
  font-weight: 800;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-version {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: rgba(51, 204, 230, 0.14);
  color: var(--ocean-cyan);
  border: 1px solid rgba(51, 204, 230, 0.3);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  white-space: nowrap;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 0.18s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--ocean-cyan-bright);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
  border: none;
  line-height: 1.25;
  white-space: nowrap;
}

.btn svg {
  flex-shrink: 0;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, #47D7F0 0%, #1999E6 100%);
  color: #03101B;
  padding: 15px 26px;
  font-size: 1.0rem;
  box-shadow: 0 12px 32px rgba(25, 153, 230, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(51, 204, 230, 0.52), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  padding: 15px 22px;
  font-size: 0.96rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(51, 204, 230, 0.12);
  border-color: var(--border-ocean-strong);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.85rem;
}

.btn-sub-meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  opacity: 0.82;
}

/* HERO SECTION */
.hero {
  position: relative;
  z-index: 1;
  padding: 56px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 44px;
  align-items: center;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  background: rgba(51, 204, 230, 0.11);
  border: 1px solid var(--border-ocean);
  color: var(--ocean-cyan-bright);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ocean-emerald);
  box-shadow: 0 0 12px var(--ocean-emerald);
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(2.35rem, 4.3vw, 3.75rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}

.text-gradient {
  background: linear-gradient(92deg, #67E8F9 0%, #26BFD9 50%, #34D399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.06rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 30px;
  max-width: 620px;
}

.hero-lead strong {
  color: var(--text-primary);
  font-weight: 700;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-sys-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-weight: 600;
}

.hero-sys-notes span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-sys-notes svg {
  color: var(--ocean-cyan);
  flex-shrink: 0;
}

/* Right Hero Visual Card: Live Flow Preview */
.hero-stage-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(16, 29, 48, 0.88), rgba(8, 15, 26, 0.94));
  border: 1px solid rgba(51, 204, 230, 0.30);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  padding: 20px;
  overflow: hidden;
}

.hero-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
  padding: 0 4px;
}

.stage-pill {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--ocean-cyan);
  background: rgba(51, 204, 230, 0.14);
  padding: 4px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(51, 204, 230, 0.3);
  white-space: nowrap;
  flex-shrink: 0;
}

.hero-app-img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.55);
}

.hero-floating-hud {
  margin-top: -28px;
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: center;
}

.hero-floating-hud img {
  width: min(92%, 460px);
  height: auto;
  filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.75));
}

.hero-metrics-strip {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.metric-mini {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px 14px;
  text-align: center;
}

.metric-mini .val {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ocean-cyan-bright);
  line-height: 1.2;
}

.metric-mini .lbl {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 3px;
  font-weight: 600;
}

/* SECTION HEADERS */
.section {
  position: relative;
  z-index: 1;
  padding: 84px 0;
  scroll-margin-top: 96px;
}

.section-header {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ocean-cyan);
  background: rgba(51, 204, 230, 0.12);
  border: 1px solid rgba(51, 204, 230, 0.28);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.04rem;
  line-height: 1.75;
}

/* PROMOTIONAL VIDEO (PV) THEATER SECTION */
.pv-section {
  padding-top: 36px;
}

.pv-theater {
  background: linear-gradient(180deg, rgba(13, 24, 42, 0.9), rgba(7, 13, 24, 0.95));
  border: 1px solid var(--border-ocean);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-lg), 0 0 70px rgba(25, 153, 230, 0.16);
}

.pv-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
  padding: 0 8px;
}

.pv-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pv-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(51, 204, 153, 0.15);
  border: 1px solid rgba(51, 204, 153, 0.45);
  color: #6EE7B7;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.pv-controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pv-video-frame {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #050911;
  border: 1px solid rgba(255, 255, 255, 0.14);
  aspect-ratio: 16 / 9;
}

.pv-video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.pv-chapters {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.chapter-btn {
  text-align: left;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.18s ease;
  font-family: var(--font-sans);
}

.chapter-btn:hover,
.chapter-btn.active {
  background: rgba(51, 204, 230, 0.15);
  border-color: var(--ocean-cyan);
  color: var(--text-primary);
}

.chapter-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--ocean-cyan);
  margin-bottom: 3px;
}

.chapter-name {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.35;
}

/* INTERACTIVE LIVE DEMO SECTION */
.demo-shell {
  background: linear-gradient(160deg, rgba(14, 25, 42, 0.88), rgba(8, 14, 25, 0.94));
  border: 1px solid var(--border-ocean);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.demo-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
  align-items: center;
}

.preset-btn {
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
}

.preset-btn:hover,
.preset-btn.active {
  background: rgba(51, 204, 230, 0.18);
  border-color: var(--ocean-cyan);
  color: var(--text-primary);
}

.demo-stage-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
  align-items: stretch;
}

.demo-panel {
  background: rgba(5, 10, 18, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.demo-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.demo-panel-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.spoken-box {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-secondary);
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.14);
  margin-bottom: 18px;
}

.spoken-box del {
  color: var(--ocean-coral);
  text-decoration: line-through;
  background: rgba(255, 102, 102, 0.12);
  padding: 1px 5px;
  border-radius: 4px;
}

.spoken-box .wrong-word {
  color: #FBBF24;
  border-bottom: 2px wavy #FBBF24;
  padding: 0 2px;
}

.ptt-trigger-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.ptt-hold-btn {
  flex: 1;
  padding: 14px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(51, 204, 230, 0.22), rgba(25, 153, 230, 0.22));
  border: 1.5px solid var(--ocean-cyan);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.96rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.16s ease;
}

.ptt-hold-btn:hover {
  background: linear-gradient(135deg, rgba(51, 204, 230, 0.34), rgba(25, 153, 230, 0.34));
  box-shadow: 0 0 25px rgba(51, 204, 230, 0.3);
}

.ptt-hold-btn.recording {
  background: rgba(255, 102, 102, 0.24);
  border-color: var(--ocean-coral);
  color: #FCA5A5;
}

.injected-output-box {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-primary);
  font-weight: 600;
  padding: 18px;
  border-radius: 12px;
  background: rgba(51, 204, 230, 0.06);
  border: 1px solid rgba(51, 204, 230, 0.35);
  margin-bottom: 16px;
  min-height: 118px;
  white-space: pre-line;
}

.injected-output-box .hl-jev {
  background: rgba(51, 204, 230, 0.22);
  border: 1px solid rgba(51, 204, 230, 0.6);
  color: var(--ocean-cyan-bright);
  padding: 1px 7px;
  border-radius: 6px;
  font-weight: 800;
}

.injected-output-box .hl-eg2 {
  background: rgba(51, 204, 153, 0.2);
  border: 1px solid rgba(51, 204, 153, 0.55);
  color: #6EE7B7;
  padding: 1px 7px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.96em;
  font-weight: 700;
}

.applied-rules-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rule-tag {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  background: rgba(51, 204, 230, 0.13);
  border: 1px solid rgba(51, 204, 230, 0.32);
  color: var(--ocean-cyan-bright);
}

/* BEFORE / AFTER COMPARISON */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  gap: 28px;
  align-items: stretch;
}

.comp-card {
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border-subtle);
}

.comp-card.before {
  background: rgba(20, 16, 24, 0.65);
  border-color: rgba(255, 102, 102, 0.22);
}

.comp-card.after {
  background: linear-gradient(160deg, rgba(14, 30, 48, 0.9), rgba(9, 20, 34, 0.95));
  border-color: var(--border-ocean-strong);
  box-shadow: var(--shadow-glow);
}

.comp-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.comp-badge {
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 800;
}

.comp-card.before .comp-badge {
  background: rgba(255, 102, 102, 0.16);
  color: #FCA5A5;
}

.comp-card.after .comp-badge {
  background: rgba(51, 204, 153, 0.18);
  color: #6EE7B7;
}

.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.comp-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.96rem;
  line-height: 1.6;
}

.comp-list .icon {
  font-weight: 800;
  font-size: 1.05rem;
  margin-top: 1px;
}

.comp-card.before .icon { color: var(--ocean-coral); }
.comp-card.after .icon { color: var(--ocean-emerald); }

/* BENTO ARCHITECTURE GRID */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.bento-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-ocean);
}

.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }

.bento-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ocean-cyan);
  margin-bottom: 10px;
}

.bento-title {
  font-size: 1.38rem;
  font-weight: 800;
  line-height: 1.32;
  margin-bottom: 10px;
}

.bento-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 18px;
}

.pipeline-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.07);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.pipe-node {
  padding: 6px 10px;
  border-radius: 7px;
  background: rgba(51, 204, 230, 0.14);
  color: var(--ocean-cyan-bright);
  border: 1px solid rgba(51, 204, 230, 0.3);
  font-weight: 600;
}

.pipe-arrow {
  color: var(--text-muted);
}

/* OPERATING SCREEN SHOWCASE (TABBED GALLERY) */
.screens-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.screen-tab-btn {
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
}

.screen-tab-btn:hover,
.screen-tab-btn.active {
  background: linear-gradient(135deg, rgba(51, 204, 230, 0.22), rgba(25, 153, 230, 0.22));
  border-color: var(--ocean-cyan);
  color: var(--text-primary);
}

.screen-stage {
  background: linear-gradient(180deg, rgba(15, 26, 44, 0.85), rgba(7, 13, 23, 0.92));
  border: 1px solid var(--border-ocean);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.screen-stage-inner {
  display: grid;
  grid-template-columns: 1.45fr 0.55fr;
  gap: 28px;
  align-items: center;
}

.screen-main-img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65);
  display: block;
}

.screen-caption-box h3 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.screen-caption-box p {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.screen-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.screen-points li {
  font-size: 0.88rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.screen-points li::before {
  content: "✓";
  color: var(--ocean-cyan);
  font-weight: 800;
}

/* TARGET APPS BAR */
.apps-strip {
  margin-top: 32px;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.app-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.app-chip {
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.11);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* INSTALL STEPS & FINAL DOWNLOAD */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 48px;
}

.step-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.step-index {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--ocean-cyan);
  margin-bottom: 10px;
}

.step-box h3 {
  font-size: 1.22rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.step-box p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.download-cta-card {
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(51, 204, 230, 0.24), transparent 70%),
    linear-gradient(165deg, rgba(14, 28, 48, 0.95), rgba(6, 12, 22, 0.98));
  border: 1.5px solid var(--border-ocean-strong);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.download-cta-icon {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(51, 204, 230, 0.4);
  margin-bottom: 20px;
}

.download-cta-card h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.download-cta-card p {
  color: var(--text-secondary);
  font-size: 1.08rem;
  max-width: 640px;
  margin: 0 auto 32px;
}

.download-buttons-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 28px;
}

.spec-grid {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-item {
  text-align: center;
}

.spec-item .k {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.spec-item .v {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 700;
  margin-top: 2px;
}

.site-footer {
  padding: 40px 0 56px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.86rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-grid,
  .demo-stage-grid,
  .comparison-grid,
  .screen-stage-inner {
    grid-template-columns: 1fr;
  }
  .span-7, .span-5, .span-4, .span-6 {
    grid-column: span 12;
  }
  .pv-chapters {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-links,
  .brand-version {
    display: none;
  }
  .nav-inner {
    padding: 0 10px 0 14px;
    gap: 8px;
  }
  .brand-name {
    font-size: 0.96rem;
  }
  .nav-actions .btn-sm {
    padding: 8px 12px;
    font-size: 0.76rem;
    gap: 6px;
  }
  .hero {
    padding: 36px 0 40px;
  }
  .hero-cta-group .btn,
  .download-buttons-row .btn {
    width: 100%;
    white-space: normal;
  }
  .pv-chapters {
    grid-template-columns: 1fr;
  }
  .hero-metrics-strip {
    grid-template-columns: 1fr;
  }
  .download-cta-card {
    padding: 36px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}