/* ============================================================
   CS VISUALIZER — MARKETING WEBSITE
   Developer-oriented design — Vercel / Linear / Warp aesthetic
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
img, video { display: block; max-width: 100%; }
a { text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; }

/* === VARIABLES === */
:root {
  --max-width: 1160px;
  --section-pad: 128px 24px;
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

[data-theme="dark"] {
  --bg:           #09090b;
  --bg2:          #111113;
  --bg3:          #18181b;
  --bg4:          #1f1f23;
  --border:       #27272a;
  --border-hi:    #3f3f46;
  --accent:       #00d4ff;
  --accent-dim:   rgba(0, 212, 255, 0.08);
  --accent-line:  rgba(0, 212, 255, 0.18);
  --green:        #22c55e;
  --green-dim:    rgba(34, 197, 94, 0.08);
  --red:          #ef4444;
  --fg:           #fafafa;
  --fg2:          #a1a1aa;
  --fg3:          #52525b;
  --fg4:          #3f3f46;
  --card-bg:      rgba(17, 17, 19, 0.85);
  --nav-bg:       rgba(9, 9, 11, 0.92);
  --code-bg:      #0d0d10;
  --code-border:  #1e1e26;
  --selection:    rgba(0, 212, 255, 0.1);
}

[data-theme="light"] {
  --bg:           #ffffff;
  --bg2:          #fafafa;
  --bg3:          #f4f4f5;
  --bg4:          #e4e4e7;
  --border:       #e4e4e7;
  --border-hi:    #d4d4d8;
  --accent:       #0284c7;
  --accent-dim:   rgba(2, 132, 199, 0.07);
  --accent-line:  rgba(2, 132, 199, 0.2);
  --green:        #16a34a;
  --green-dim:    rgba(22, 163, 74, 0.07);
  --red:          #dc2626;
  --fg:           #09090b;
  --fg2:          #52525b;
  --fg3:          #a1a1aa;
  --fg4:          #d4d4d8;
  --card-bg:      rgba(255, 255, 255, 0.9);
  --nav-bg:       rgba(255, 255, 255, 0.92);
  --code-bg:      #f4f4f5;
  --code-border:  #e4e4e7;
  --selection:    rgba(2, 132, 199, 0.08);
}

/* === BASE === */
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s, color 0.25s;
}

::selection { background: var(--selection); }

/* Subtle grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
}
[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(0,0,0,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.04) 1px, transparent 1px);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.mono { font-family: var(--font-mono); }

.dim { color: var(--fg2); }

/* === LAYOUT === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
  z-index: 1;
  padding: var(--section-pad);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-eyebrow::before {
  content: '//';
  opacity: 0.5;
}

.section-title {
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 16px;
  color: var(--fg);
}

.section-sub {
  font-size: 1rem;
  color: var(--fg2);
  max-width: 520px;
  line-height: 1.7;
}

/* === NAV === */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 60px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s;
}

nav.scrolled { border-color: var(--border-hi); }

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}

.nav-logo-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  font-weight: 900;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 0;
}

.nav-links a {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--fg2);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  letter-spacing: -0.01em;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--fg);
  background: var(--bg3);
}

.nav-right { display: flex; align-items: center; gap: 10px; }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  color: var(--fg2);
  border: 1px solid var(--border);
  transition: all 0.15s;
  font-size: 0.85rem;
}

.theme-toggle:hover { border-color: var(--border-hi); color: var(--fg); background: var(--bg3); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--fg);
  color: var(--bg);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--border-hi); background: var(--bg3); }

.btn-ghost {
  background: transparent;
  color: var(--fg2);
}
.btn-ghost:hover { color: var(--fg); background: var(--bg3); }

.btn-accent {
  background: var(--accent);
  color: #000;
}
.btn-accent:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-lg {
  padding: 12px 24px;
  font-size: 0.9rem;
  border-radius: var(--radius);
}

/* === HERO === */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 100px 24px 80px;
  position: relative;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
}
[data-theme="light"] #hero-canvas { opacity: 0.2; }

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-left {}

/* Status badge */
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg2);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  background: var(--bg2);
}

.hero-status .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: status-blink 2.5s ease-in-out infinite;
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(52px, 6.5vw, 88px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 24px;
  color: var(--fg);
}

.hero-title .hl { color: var(--accent); }

.hero-sub {
  font-size: 1.05rem;
  color: var(--fg2);
  max-width: 440px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Terminal command block in hero */
.hero-terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--code-bg);
}

.hero-terminal .term-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.term-dot.red    { background: #ff5f57; }
.term-dot.yellow { background: #febc2e; }
.term-dot.green  { background: #28c840; }

.hero-terminal .term-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fg3);
  margin-left: 6px;
  letter-spacing: 0.06em;
}

.hero-terminal .term-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.term-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.term-line .prompt { color: var(--green); user-select: none; flex-shrink: 0; }
.term-line .cmd    { color: var(--fg); }
.term-line .arg    { color: var(--accent); }
.term-line .out    { color: var(--fg2); padding-left: 20px; }
.term-line .ok     { color: var(--green); padding-left: 20px; }
.term-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--fg2);
  vertical-align: middle;
  animation: blink-cur 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink-cur { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* Hero right — app window carousel */
.hero-right {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.app-window {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 1px var(--border), 0 40px 80px rgba(0,0,0,0.5);
}

[data-theme="light"] .app-window {
  box-shadow: 0 0 0 1px var(--border), 0 24px 48px rgba(0,0,0,0.12);
}

.app-window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}

.app-window-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fg3);
  margin-left: 8px;
  letter-spacing: 0.06em;
}

.app-window-screen {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--bg);
  overflow: hidden;
}

.c-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.c-slide.active { opacity: 1; }

/* Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
}

.c-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg4);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.c-dot.active {
  background: var(--fg);
  transform: scale(1.4);
}

/* Hero stats row */
.hero-stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg2);
}

.hero-stat strong { color: var(--fg); font-weight: 700; }

/* Scroll indicator */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--fg3);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
}

.scroll-hint .arrow {
  animation: arrow-bounce 2s ease-in-out infinite;
  font-size: 0.8rem;
}
@keyframes arrow-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* === DIVIDER === */
.rule {
  height: 1px;
  background: var(--border);
  position: relative;
  z-index: 1;
}

/* === TICKER === */
.ticker-strip {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  padding: 12px 0;
  position: relative;
  z-index: 1;
}

.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: ticker-go 50s linear infinite;
}
.ticker-track:hover { animation-play-state: paused; }

.ticker-group {
  display: inline-flex;
  gap: 0;
  flex-shrink: 0;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 0 32px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--fg3);
  text-transform: uppercase;
}
.ticker-item::after { content: '/'; opacity: 0.3; }

@keyframes ticker-go {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* === VISUALIZERS === */
#visualizers { background: var(--bg2); }
#visualizers .section-header { margin-bottom: 56px; }

/* === VISUALIZER GRID (landing-page style) === */
.viz-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

/* Animated expand panel between rows */
.viz-expand {
  height: 0;
  overflow: hidden;
  transition: height 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 12px 0;
}

.viz-expand.open {
  height: 520px;
}

.viz-expand-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 520px;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg2);
}

.viz-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.15s, border-color 0.15s;
  cursor: default;
}

.viz-card:hover { background: var(--bg3); }

/* Landing-page card elements */
.lp-icon {
  font-size: 26px;
  line-height: 1;
  margin-bottom: 2px;
}


.lp-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--fg);
  font-weight: 500;
}

.lp-desc {
  font-size: 0.8rem;
  color: var(--fg2);
  line-height: 1.6;
  flex: 1;
}


/* === FEATURES (BENTO) === */
#features { background: var(--bg); }
#features .section-header { margin-bottom: 48px; }

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.bento-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s, background 0.15s;
}

.bento-card:hover {
  border-color: var(--border-hi);
  background: var(--bg2);
}

.bento-lg { grid-column: span 2; }

.bento-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--fg3);
}

.bento-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-top: 2px;
}

.bento-desc {
  font-size: 0.85rem;
  color: var(--fg2);
  line-height: 1.65;
}

.bento-icon {
  margin-top: auto;
  padding-top: 24px;
  font-size: 52px;
  color: var(--fg3);
}

/* Chat preview inside CS Assistant card */
.bento-chat {
  margin-top: 20px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.bc-row {
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.55;
  align-items: flex-start;
}

.bc-who {
  flex-shrink: 0;
  font-weight: 700;
  width: 22px;
}

.bc-row.user .bc-who { color: var(--accent); }
.bc-row.ai   .bc-who { color: var(--green); }
.bc-row.user .bc-text { color: var(--fg); }
.bc-row.ai   .bc-text { color: var(--fg2); }

.bc-cursor {
  display: inline-block;
  width: 7px;
  height: 12px;
  background: var(--fg2);
  vertical-align: middle;
  margin-left: 2px;
  animation: blink-cur 1s step-end infinite;
}

/* === DOWNLOAD === */
#download { background: var(--bg2); }
#download .section-header { margin-bottom: 56px; }

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.platform-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.platform-card h3 { margin: 0; }

.platform-card:hover {
  border-color: var(--border-hi);
  box-shadow: 0 0 0 1px var(--border-hi);
}

/* no featured variant needed */

.plat-logo {
  font-size: 28px;
  color: var(--fg2);
}

.plat-badge {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  padding: 3px 9px;
  border-radius: 3px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-line);
}

.platform-card h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex: 1;
}

/* Terminal command block in platform cards */
.plat-cmd {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg2);
  margin-bottom: 20px;
  cursor: default;
}

.plat-cmd .ps { color: var(--green); user-select: none; }
.plat-cmd .cmd-text { color: var(--fg); }
.plat-cmd .copy-btn {
  margin-left: auto;
  color: var(--fg3);
  font-size: 0.65rem;
  cursor: pointer;
  transition: color 0.15s;
  flex-shrink: 0;
}
.plat-cmd .copy-btn:hover { color: var(--fg); }

.btn-dl {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s;
  width: 100%;
  margin-bottom: 0;
}

.btn-dl-primary   { background: var(--fg); color: var(--bg); }
.btn-dl-primary:hover  { opacity: 0.88; }

.btn-dl-secondary { background: transparent; border: 1px solid var(--border); color: var(--fg2); }
.btn-dl-secondary:hover { border-color: var(--border-hi); color: var(--fg); }

.sysreq {
  margin-top: 40px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.sysreq-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--fg3);
  text-transform: uppercase;
  flex-shrink: 0;
}

.sysreq-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sysreq-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg2);
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
}

/* === VIZ EXPAND PREVIEW (inline between rows) === */

.vp-info {
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.vp-icon {
  font-size: 28px;
  line-height: 1;
}

.vp-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--fg);
  font-weight: 600;
}

.vp-desc {
  font-size: 0.83rem;
  color: var(--fg2);
  line-height: 1.65;
}

.vp-screen {
  position: relative;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.vp-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  display: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.vp-img.loaded { opacity: 1; }

.vp-empty {
  font-size: 40px;
  color: var(--fg4);
  transition: opacity 0.2s;
}

.viz-expand.open .vp-empty,
.viz-expand.closing .vp-empty { display: none; }

.viz-expand.open .vp-img,
.viz-expand.closing .vp-img   { display: block; }

/* === PLUGINS === */
#plugins { background: var(--bg); }
#plugins .section-header { margin-bottom: 56px; }

/* Horizontal expand wrapper */
.plugin-expand-wrap {
  display: flex;
  gap: 16px;
  align-items: center;
}

.plugin-cards-col {
  flex: 0 0 auto; /* sized by its content (locked card widths from JS) */
  min-width: 0;
}

/* layout-ready: stack cards vertically (no expand panel yet) */
.plugin-expand-wrap.layout-ready .plugin-grid {
  grid-template-columns: 1fr;
}
.plugin-expand-wrap.layout-ready .plugin-btn-row {
  grid-template-columns: 1fr;
}

/* open: reveal expand panel */
.plugin-expand-wrap.open .plugin-grid {
  grid-template-columns: 1fr;
}
.plugin-expand-wrap.open .plugin-btn-row {
  grid-template-columns: 1fr;
}

/* Horizontal expand panel — grows into remaining space */
.plugin-expand {
  flex: 1 1 0;
  max-width: 0;
  overflow: hidden;
  transition: max-width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 0;
}

.plugin-expand-wrap.open .plugin-expand {
  max-width: 1200px;
}

.plugin-expand-inner {
  display: flex;
  flex-direction: column;
  aspect-ratio: 3420 / 2156;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg2);
  min-width: 400px;
  width: 100%;
}

.pe-info {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.pe-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}

.pe-desc {
  font-size: 0.8rem;
  color: var(--fg2);
}

.pe-screen {
  flex: 1;
  position: relative;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.pe-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.pe-img.loaded { opacity: 1; }

.pe-empty {
  font-size: 40px;
  color: var(--fg4);
}

.plugin-expand-wrap.open .pe-empty,
.plugin-expand-wrap.closing .pe-empty { display: none; }

.plugin-expand-wrap.open .pe-img,
.plugin-expand-wrap.closing .pe-img   { display: block; }

.plugin-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.plugin-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  transition: border-color 0.15s;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  min-height: 160px;
}

.plugin-card:hover { border-color: var(--border-hi); }

.plugin-icon { font-size: 36px; color: var(--fg2); }
.plugin-icon i { color: var(--fg2) !important; }

/* Buttons inside cards — hidden in grid mode, visible in vertical mode */
.plugin-card-btn {
  display: none;
  margin-top: auto;
  white-space: nowrap;
}

.plugin-expand-wrap.layout-ready .plugin-card-btn,
.plugin-expand-wrap.open .plugin-card-btn {
  display: flex;
}

.plugin-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

.platform-btn-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

/* Button row below cards — same column widths as the grid */
.plugin-btn-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.ext-btn-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

/* Right-click menu UI */
.context-menu {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--bg3);
  margin-bottom: 18px;
}

.ctx-header {
  padding: 5px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--fg3);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ctx-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
  color: var(--fg2);
  border-bottom: 1px solid var(--border);
}
.ctx-item:last-child { border-bottom: none; }

.ctx-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.ctx-arrow { color: var(--fg4); font-size: 0.6rem; }

.btn-install {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s;
  background: var(--fg);
  color: var(--bg);
  border: none;
  width: 100%;
}

.btn-install:hover { opacity: 0.88; color: var(--bg); }

.btn-install-muted {
  background: var(--bg3);
  color: var(--fg2);
  border: 1px solid var(--border);
}
.btn-install-muted:hover { background: var(--bg4); color: var(--fg); opacity: 1; }

/* === EXTENSIONS === */
#extensions { background: var(--bg2); }
#extensions .section-header { margin-bottom: 56px; }

.ext-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* Coming soon card */
.ext-coming-soon {
  opacity: 0.55;
  pointer-events: none;
  position: relative;
}

.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border: 1px dashed var(--border-hi);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--fg3);
  text-transform: uppercase;
  width: 100%;
  justify-content: center;
}

.ext-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  transition: border-color 0.15s;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 160px;
}

.ext-card:hover { border-color: var(--border-hi); }

.ext-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.ext-icon { font-size: 36px; flex-shrink: 0; }

.ext-header-text h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.ext-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fg3);
  letter-spacing: 0.08em;
}

.ext-desc {
  font-size: 0.85rem;
  color: var(--fg2);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* "Works on" sites */
.ext-sites-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--fg3);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.ext-sites {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.ext-site {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg2);
  letter-spacing: 0.04em;
}

/* Extension feature list */
.ext-feats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 24px;
}

.ext-feat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--fg2);
}

.ext-feat::before {
  content: '✓';
  color: var(--green);
  font-size: 0.72rem;
  flex-shrink: 0;
}

.btn-ext {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s;
  width: 100%;
  background: var(--fg);
  color: var(--bg);
}

.btn-ext:hover { opacity: 0.88; color: var(--bg); }

/* === PRICING === */
#pricing { background: var(--bg); }
#pricing .section-header { margin-bottom: 56px; }

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 760px;
}

.pricing-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: border-color 0.15s;
  position: relative;
}

.pricing-card:hover { border-color: var(--border-hi); }

.pricing-card.featured {
  border-color: var(--accent);
  background: var(--bg);
}

.pricing-badge {
  position: absolute;
  top: -1px;
  right: 24px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  font-weight: 700;
  padding: 4px 12px;
  background: var(--accent);
  color: #000;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-transform: uppercase;
}

.pricing-tier {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--fg3);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}

.pricing-amount {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 4px;
}

.pricing-amount.accent { color: var(--accent); }

.pricing-note {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg3);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}

.pricing-items {
  margin-bottom: 28px;
}

.pricing-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--fg2);
  border-bottom: 1px solid var(--border);
}
.pricing-item:last-child { border-bottom: none; }
.pricing-item::before { content: '→'; color: var(--fg3); font-family: var(--font-mono); font-size: 0.7rem; flex-shrink: 0; }

.btn-pricing {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s;
  width: 100%;
}

.btn-pricing.outline { border: 1px solid var(--border); color: var(--fg); background: transparent; }
.btn-pricing.outline:hover { border-color: var(--border-hi); background: var(--bg3); }

.btn-pricing.solid { background: var(--fg); color: var(--bg); }
.btn-pricing.solid:hover { opacity: 0.88; }

/* === CONTACT MODAL === */
#contact-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}
#contact-overlay.open { display: flex; }

#contact-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
}

#contact-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

#contact-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 600;
}

#contact-close {
  background: none;
  border: none;
  color: var(--fg2);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
}
#contact-close:hover { color: var(--fg); }

#contact-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cf-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
  margin-bottom: 5px;
}

.cf-input, .cf-select, .cf-textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 9px 12px;
  box-sizing: border-box;
  transition: border-color 0.15s;
}
.cf-input:focus, .cf-select:focus, .cf-textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.cf-select { cursor: pointer; }
.cf-textarea { resize: vertical; min-height: 100px; }

#cf-status {
  font-size: 0.78rem;
  text-align: center;
  min-height: 16px;
  color: var(--fg2);
}

#cf-submit {
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  padding: 10px;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
}
#cf-submit:hover { background: rgba(0,212,255,0.08); box-shadow: 0 0 12px rgba(0,212,255,0.2); }
#cf-submit:disabled { opacity: 0.4; cursor: default; }

/* === FOOTER === */
footer {
  border-top: 1px solid var(--border);
  background: var(--bg2);
  padding: 0;
  position: relative;
  z-index: 1;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.footer-brand-lm {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  object-fit: cover;
  font-size: 11px;
  color: #000;
  font-weight: 900;
}

.footer-brand p {
  font-size: 0.82rem;
  color: var(--fg2);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 260px;
}

.footer-stack {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--fg3);
  letter-spacing: 0.08em;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--fg3);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.82rem;
  color: var(--fg2);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--fg); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom span,
.footer-bottom a {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg3);
  letter-spacing: 0.04em;
}
.footer-bottom a:hover { color: var(--fg2); }

.footer-links { display: flex; gap: 20px; }

/* === EXT EXPAND PANEL === */
.ext-expand {
  height: 0;
  overflow: hidden;
  transition: height 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 12px 0 0;
}

.ext-expand.open   { height: 380px; }
.ext-expand.closing { height: 0; }

.ext-expand-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 380px;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg2);
}

.ext-expand.open .vp-empty,
.ext-expand.closing .vp-empty { display: none; }

.ext-expand.open .vp-img,
.ext-expand.closing .vp-img   { display: block; }

/* === MEDIA QUERIES === */
@media (max-width: 1100px) {
  .viz-row { grid-template-columns: repeat(3, 1fr); }
  .plugin-grid { grid-template-columns: repeat(2, 1fr); }
  .plugin-btn-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 860px) {
  :root { --section-pad: 80px 20px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  nav { padding: 0 16px; }
  .nav-links { display: none; }
  .viz-row { grid-template-columns: repeat(2, 1fr); }
  .viz-expand.open { height: auto; }
  .viz-expand-inner { grid-template-columns: 1fr; height: auto; }
  .vp-screen { min-height: 200px; }
  .platform-grid { grid-template-columns: 1fr; }
  .ext-grid { grid-template-columns: 1fr 1fr; }
  .ext-grid .ext-coming-soon { grid-column: span 2; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .plugin-grid { grid-template-columns: 1fr; }
  .plugin-btn-row { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}