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

:root {
  --bg: #0a0a0f;
  --bg-card: #111118;
  --bg-card-hover: #16161f;
  --bg-code: #0d0d14;
  --border: #1e1e2e;
  --border-hover: #2e2e45;
  --text: #e4e4ef;
  --text-muted: #8888a0;
  --text-dim: #555570;
  --accent-1: #6366f1;
  --accent-2: #06b6d4;
  --accent-3: #8b5cf6;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --orange: #f97316;
  --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --gradient-text: linear-gradient(135deg, #818cf8, #06b6d4, #a78bfa);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* === Background Effects === */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.bg-glow {
  position: fixed; z-index: -1; border-radius: 50%;
  filter: blur(120px); opacity: 0.3; pointer-events: none;
}
.glow-1 { top: -200px; right: -100px; width: 600px; height: 600px; background: var(--accent-1); }
.glow-2 { bottom: -200px; left: -100px; width: 500px; height: 500px; background: var(--accent-2); opacity: 0.2; }

/* === Typography === */
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.3rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.accent { color: var(--accent-1); }
code { font-family: var(--mono); font-size: 0.85em; background: rgba(99, 102, 241, 0.1); padding: 2px 6px; border-radius: 4px; }

/* === Layout === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; }
.section-title { text-align: center; margin-bottom: 0.5rem; }
.section-subtitle { text-align: center; color: var(--text-muted); font-size: 1.1rem; margin-bottom: 3rem; }

/* === Navbar === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.75rem; color: white;
}
.brand-text { font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; gap: 2rem; }
.nav-link {
  color: var(--text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-link:hover, .nav-link.active { color: var(--text); }

/* === Hero === */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  padding: 8rem 2rem 4rem;
  max-width: 1400px; margin: 0 auto;
}
.hero-content { text-align: center; margin-bottom: 3rem; }
.hero-badge {
  display: inline-block; padding: 0.4rem 1rem; border-radius: 20px;
  background: rgba(99, 102, 241, 0.1); border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--accent-1); font-size: 0.85rem; font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero-subtitle {
  font-size: 1.15rem; color: var(--text-muted); max-width: 700px; margin: 1.5rem auto 2rem;
  line-height: 1.7;
}

/* Hero Stats */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  max-width: 800px; margin: 2.5rem auto;
}
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 1.2rem 1rem; text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.stat-card:hover { border-color: var(--accent-1); transform: translateY(-2px); }
.stat-number {
  font-size: 1.8rem; font-weight: 800;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.3rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* Hero CTA */
.hero-cta { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.95rem; font-weight: 600;
  text-decoration: none; border: none; cursor: pointer;
  transition: all 0.25s ease;
}
.btn-primary {
  background: var(--gradient); color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent-1); background: rgba(99, 102, 241, 0.05); }

/* === Code Morph (Hero Visual) === */
.hero-visual { max-width: 1100px; margin: 0 auto; }
.code-morph {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center;
}
.code-panel {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.panel-header {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.panel-title { margin-left: 0.5rem; font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.code-content {
  padding: 1rem 1.2rem; font-family: var(--mono); font-size: 0.72rem;
  line-height: 1.6; overflow-x: auto; color: #c9d1d9;
  max-height: 400px; overflow-y: auto;
}
.code-content .kw { color: #ff7b72; }
.code-content .cls { color: #79c0ff; }
.code-content .str { color: #a5d6ff; }

.transform-arrow {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}
.arrow-label { font-size: 0.7rem; color: var(--text-muted); text-align: center; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

/* === Steps Grid === */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.step-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; position: relative; overflow: hidden;
  transition: all 0.3s;
}
.step-card:hover { border-color: var(--accent-1); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.step-number {
  position: absolute; top: 1rem; right: 1.5rem;
  font-size: 4rem; font-weight: 900; color: rgba(99, 102, 241, 0.08);
  line-height: 1;
}
.step-icon { color: var(--accent-2); margin-bottom: 1rem; }
.step-card h3 { margin-bottom: 0.5rem; }
.step-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1rem; }
.step-list { list-style: none; }
.step-list li {
  position: relative; padding-left: 1.2rem; font-size: 0.85rem; color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.step-list li::before {
  content: ''; position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent-1);
}

/* === Pipeline Section === */
.pipeline-section {
  background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.03) 30%, rgba(6, 182, 212, 0.03) 70%, transparent 100%);
}
.pipeline-header { text-align: center; margin-bottom: 3rem; }
.pipeline-badge {
  display: inline-block; padding: 0.4rem 1rem; border-radius: 20px;
  background: rgba(6, 182, 212, 0.1); border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--accent-2); font-size: 0.85rem; font-weight: 600;
  margin-bottom: 1rem; letter-spacing: 0.04em;
}

.pipeline-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
  margin-bottom: 3rem;
}
.pipeline-grid .pipeline-card:first-child {
  grid-column: 1 / -1;
}
.pipeline-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; position: relative; overflow: hidden;
  transition: all 0.35s ease;
}
.pipeline-card:hover { border-color: var(--accent-1); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.pipeline-card.featured {
  border-color: rgba(99, 102, 241, 0.3);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}
.pipeline-card.featured:hover {
  border-color: var(--accent-1);
  box-shadow: 0 0 60px rgba(99, 102, 241, 0.15), 0 4px 30px rgba(0, 0, 0, 0.3);
}
.pipeline-card-glow {
  position: absolute; top: -50px; right: -50px; width: 150px; height: 150px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.pipeline-icon-wrap {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(99, 102, 241, 0.08); border: 1px solid rgba(99, 102, 241, 0.15);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-1); margin-bottom: 1rem;
}
.pipeline-card.featured .pipeline-icon-wrap {
  background: var(--gradient); color: white; border: none;
}
.pipeline-label {
  display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent-2); margin-bottom: 0.5rem;
}
.pipeline-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
.pipeline-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1rem; }
.pipeline-card p strong { color: var(--text); }

.pipeline-features { list-style: none; }
.pipeline-features li {
  position: relative; padding-left: 1.4rem; font-size: 0.82rem;
  color: var(--text-muted); margin-bottom: 0.45rem; line-height: 1.5;
}
.pipeline-features li::before {
  content: ''; position: absolute; left: 0; top: 0.45em;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-1); opacity: 0.6;
}
.pipeline-card.featured .pipeline-features li::before { opacity: 1; background: var(--gradient); }

/* Pipeline Flow Diagram */
.pipeline-flow {
  display: flex; align-items: center; justify-content: center;
  gap: 0; margin-bottom: 2.5rem; padding: 0 2rem;
}
.flow-step {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  min-width: 80px;
}
.flow-dot {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border); background: var(--bg-card);
  transition: all 0.3s;
}
.flow-dot.active {
  border-color: var(--accent-1); background: var(--accent-1);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.4);
}
.flow-step span {
  font-size: 0.75rem; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap;
}
.flow-line {
  flex: 1; height: 2px; min-width: 30px; max-width: 80px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  opacity: 0.4; margin-top: -1.2rem;
}

/* Pipeline CTA */
.pipeline-cta {
  text-align: center; padding: 2rem;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
}
.pipeline-cta p { color: var(--text-muted); font-size: 1rem; margin-bottom: 1rem; }
.pipeline-cta strong { color: var(--text); }

/* === Demo Section === */
.demo-section { background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.02) 50%, transparent 100%); }

.demo-tabs { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 2rem; }
.demo-tab {
  padding: 0.6rem 1.5rem; border-radius: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); font-family: var(--font);
  font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.2s;
}
.demo-tab:hover { border-color: var(--border-hover); color: var(--text); }
.demo-tab.active { background: rgba(99, 102, 241, 0.1); border-color: var(--accent-1); color: var(--accent-1); }

/* Upload Grid */
.upload-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.upload-zone {
  background: var(--bg-card); border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 2rem 1.5rem; text-align: center; cursor: pointer;
  transition: all 0.3s;
}
.upload-zone:hover { border-color: var(--accent-1); background: var(--bg-card-hover); }
.upload-zone.has-files { border-color: var(--green); border-style: solid; }
.upload-zone.dragover { border-color: var(--accent-2); background: rgba(6, 182, 212, 0.05); transform: scale(1.02); }
.upload-icon { color: var(--text-dim); margin-bottom: 0.75rem; }
.upload-zone h4 { font-size: 0.95rem; margin-bottom: 0.3rem; }
.upload-zone p { font-size: 0.8rem; color: var(--text-muted); }
.required { color: var(--red); }
.file-info { margin-top: 0.75rem; font-size: 0.8rem; color: var(--green); font-family: var(--mono); }

.btn-convert {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  width: 100%; max-width: 400px; margin: 0 auto; padding: 1rem;
  font-size: 1.05rem;
}

/* Spinner */
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3); border-top-color: white;
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Samples */
.samples-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; }
.sample-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 1rem; cursor: pointer; transition: all 0.2s;
}
.sample-card:hover { border-color: var(--accent-1); transform: translateY(-2px); }
.sample-name { font-family: var(--mono); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.sample-meta { font-size: 0.75rem; color: var(--text-muted); }
.loading-samples { text-align: center; color: var(--text-muted); padding: 2rem; }

.demo-sample-info { max-width: 700px; margin: 0 auto; }
.demo-sample-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; transition: border-color 0.3s;
}
.demo-sample-card:hover { border-color: var(--accent-1); }
.demo-sample-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.demo-sample-header h3 { font-family: var(--mono); font-size: 1.2rem; }
.demo-sample-card > p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1rem; }
.demo-sample-card .step-list { margin-bottom: 0; }

/* === Results === */
.results-area { margin-top: 2rem; animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.results-header {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem; margin-bottom: 1rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
}
.results-title { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.results-title h3 { font-family: var(--mono); font-size: 1.2rem; }
.results-badges { display: flex; gap: 0.5rem; }
.badge {
  display: inline-flex; align-items: center; padding: 0.25rem 0.75rem;
  border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.badge-success { background: rgba(34, 197, 94, 0.1); color: var(--green); border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-warning { background: rgba(234, 179, 8, 0.1); color: var(--yellow); border: 1px solid rgba(234, 179, 8, 0.2); }
.badge-error { background: rgba(239, 68, 68, 0.1); color: var(--red); border: 1px solid rgba(239, 68, 68, 0.2); }

.results-metrics {
  display: flex; gap: 1.5rem; font-size: 0.85rem; color: var(--text-muted);
}
.results-metrics span { font-weight: 600; color: var(--text); }

/* Missing Files Panel */
.missing-files-panel {
  background: rgba(249, 115, 22, 0.05); border: 1px solid rgba(249, 115, 22, 0.2);
  border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1rem;
}
.missing-header { display: flex; align-items: center; gap: 0.5rem; color: var(--orange); margin-bottom: 1rem; }
.missing-header h4 { font-size: 0.95rem; }
.missing-list {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem;
}
.missing-file {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.3rem 0.8rem; border-radius: 6px;
  background: rgba(249, 115, 22, 0.1); border: 1px solid rgba(249, 115, 22, 0.15);
  font-family: var(--mono); font-size: 0.8rem; color: var(--orange);
}
.missing-file .type-label {
  font-size: 0.65rem; text-transform: uppercase; font-weight: 700;
  padding: 1px 4px; border-radius: 3px; background: rgba(249, 115, 22, 0.2);
}
.missing-note { font-size: 0.8rem; color: var(--text-muted); }
.missing-note a { color: var(--accent-2); text-decoration: none; }
.missing-note a:hover { text-decoration: underline; }

/* Code Compare */
.code-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.code-panel-result {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.code-panel-result .code-content { max-height: 600px; overflow: auto; font-size: 0.7rem; white-space: pre; }
.line-count { margin-left: auto; font-size: 0.75rem; color: var(--text-dim); font-family: var(--mono); }
.btn-copy {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text-muted); cursor: pointer; padding: 4px 8px; margin-left: 0.5rem;
  transition: all 0.2s;
}
.btn-copy:hover { border-color: var(--accent-1); color: var(--text); }

/* === Extraction Guide === */
.guide-accordion { max-width: 900px; margin: 0 auto; }
.guide-step {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 0.75rem; overflow: hidden; transition: border-color 0.3s;
}
.guide-step:hover { border-color: var(--border-hover); }
.guide-step.open { border-color: var(--accent-1); }
.guide-step-header {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.25rem 1.5rem; cursor: pointer; user-select: none;
}
.guide-step-num {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.85rem; color: white; flex-shrink: 0;
}
.guide-step-info { flex: 1; }
.guide-step-info h3 { font-size: 1rem; margin-bottom: 0.1rem; }
.guide-step-info p { font-size: 0.8rem; color: var(--text-muted); }
.chevron { color: var(--text-muted); transition: transform 0.3s; flex-shrink: 0; }
.guide-step.open .chevron { transform: rotate(180deg); }

.guide-step-body {
  padding: 0 1.5rem 1.5rem; display: none;
}
.guide-step.open .guide-step-body { display: block; }

.guide-code {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 1rem 1.2rem; margin: 0.75rem 0 1rem;
  overflow-x: auto;
}
.guide-code code { background: none; padding: 0; font-size: 0.8rem; line-height: 1.7; color: #c9d1d9; }
.guide-code.inline { display: inline-block; margin: 0.3rem 0; padding: 0.3rem 0.8rem; }

.guide-tip {
  background: rgba(6, 182, 212, 0.05); border: 1px solid rgba(6, 182, 212, 0.15);
  border-radius: var(--radius-sm); padding: 1rem 1.2rem;
  font-size: 0.85rem; color: var(--text-muted); margin-top: 1rem;
}
.guide-tip strong { color: var(--accent-2); }

.req-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.req-card {
  background: rgba(255, 255, 255, 0.02); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.2rem;
}
.req-card h4 { color: var(--accent-2); margin-bottom: 0.5rem; }
.req-card ul { list-style: none; }
.req-card li { font-size: 0.85rem; color: var(--text-muted); padding: 0.2rem 0; padding-left: 1rem; position: relative; }
.req-card li::before { content: '\2022'; position: absolute; left: 0; color: var(--accent-1); }

.convert-steps { padding-left: 1.2rem; }
.convert-steps li { font-size: 0.9rem; color: var(--text-muted); padding: 0.3rem 0; }
.convert-steps li strong { color: var(--text); }

.connectivity-test h4 { color: var(--text); margin-top: 1rem; }

/* === Footer === */
.footer {
  border-top: 1px solid var(--border); padding: 3rem 0;
}
.footer-content { text-align: center; }
.footer-brand {
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  font-weight: 700; font-size: 1.1rem; margin-bottom: 0.5rem;
}
.footer-text { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0.3rem; }
.footer-tech { color: var(--text-dim); font-size: 0.8rem; }

/* === Responsive === */
@media (max-width: 768px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .code-morph { grid-template-columns: 1fr; }
  .transform-arrow { transform: rotate(90deg); padding: 1rem 0; }
  .steps-grid { grid-template-columns: 1fr; }
  .upload-grid { grid-template-columns: 1fr; }
  .code-compare { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .req-grid { grid-template-columns: 1fr; }
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }