/* ============================================================
   SMARTFILES AI — STYLESHEET
   ============================================================ */

/* ---------- 1. TOKENS ---------- */
:root {
  --bg: #08090C;
  --bg-secondary: #0F1117;
  --card: #13161D;
  --card-hover: #161A23;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text-primary: #F5F7FA;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;

  --accent: #4F7CFF;
  --accent-bright: #6C93FF;
  --accent-dim: rgba(79, 124, 255, 0.14);
  --accent-border: rgba(79, 124, 255, 0.35);

  --green: #34D399;

  --font-display: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 1px 0 rgba(255,255,255,0.03) inset, 0 20px 40px -20px rgba(0,0,0,0.5);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  --container: 1160px;
}

/* ---------- 2. RESET ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul, ol { list-style: none; }

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 3. LAYOUT HELPERS ---------- */
.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 120px 0; position: relative; }

.center { text-align: center; }

.section-title {
  font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-title.center { margin-left: auto; margin-right: auto; max-width: 720px; }

.section-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-top: 16px;
  max-width: 560px;
}

.section-sub.center { margin-left: auto; margin-right: auto; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 16px;
}

/* ---------- 4. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 1px var(--accent-border), 0 8px 24px -8px rgba(79, 124, 255, 0.55);
}
.btn-primary:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px var(--accent-border), 0 12px 28px -8px rgba(79, 124, 255, 0.7);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.22);
}

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 30px; font-size: 1rem; }
.btn-block { width: 100%; }

/* ---------- 5. NAVIGATION ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 9, 12, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent-bright);
  border: 1px solid var(--accent-border);
}

.brand-ai {
  color: var(--accent-bright);
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.nav-links a { transition: color 0.15s var(--ease); }
.nav-links a:hover { color: var(--text-primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-toggle span {
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 24px 24px;
  border-top: 1px solid var(--border);
}
.mobile-menu a {
  padding: 12px 4px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.mobile-menu .btn { margin-top: 16px; }

.mobile-menu.open { display: flex; }

/* ---------- 6. HERO ---------- */
.hero { padding: 96px 0 100px; }

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.4rem, 1.6rem + 3.2vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.accent-underline {
  color: var(--accent-bright);
  position: relative;
  white-space: nowrap;
}

.hero-sub {
  margin-top: 22px;
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 480px;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.trust-line {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
}

/* Hero visual */
.hero-visual { display: flex; justify-content: center; }

.demo-window {
  width: 100%;
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.demo-titlebar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.demo-titlebar .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
}

.demo-titletext {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin-left: 8px;
}

.demo-body {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  padding: 22px 18px 26px;
  align-items: start;
}

.demo-col-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.file-stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 260px;
}

.file-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 9px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-secondary);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.file-chip .ext {
  font-size: 0.58rem;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255,255,255,0.06);
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.file-chip.fading {
  opacity: 0;
  transform: translateX(18px) scale(0.9);
}

.demo-col-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding-top: 90px;
  color: var(--text-tertiary);
}

.demo-logo-pulse {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulseGlow 2.4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79,124,255,0); }
  50% { box-shadow: 0 0 0 6px rgba(79,124,255,0.08); }
}

.arrow-svg { color: var(--text-tertiary); }

.folder-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 260px;
}

.folder-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 7px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.folder-row.visible { opacity: 1; transform: translateY(0); }

.folder-row-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-primary);
}

.folder-row-name .folder-icon {
  color: var(--accent-bright);
  flex-shrink: 0;
}

.folder-row-count {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
}

/* ---------- 7. PROBLEM ---------- */
.problem { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.workflow-row {
  margin-top: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  min-width: 96px;
}

.workflow-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
}

.workflow-step p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.workflow-sep {
  width: 32px;
  height: 1px;
  background: var(--border-strong);
  margin: 0 6px;
  align-self: center;
  margin-bottom: 32px;
}

.problem-resolve {
  margin-top: 48px;
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---------- 8. BEFORE / AFTER ---------- */
.ba-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.ba-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

.ba-before { opacity: 0.9; }

.ba-after {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, rgba(79,124,255,0.06), rgba(19,22,29,1) 60%);
}

.ba-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ba-after .ba-label { color: var(--accent-bright); }

.ba-count {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 8px 0 20px;
  color: var(--text-primary);
}

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }

.chip {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 5px 10px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.folder-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }

.folder-pill {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent-bright);
}

.ba-note { color: var(--text-secondary); font-size: 0.9rem; }

/* ---------- 9. HOW IT WORKS ---------- */
.steps {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step {
  padding: 32px 26px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.step:hover { transform: translateY(-4px); border-color: var(--border-strong); }

.step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-bright);
  margin-bottom: 18px;
}

.step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.step p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.6; }

.how-footnote {
  margin-top: 40px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.undo-sub-2 { margin-top: 10px; }

/* ---------- 10. SMART WATCH ---------- */
.smart-watch { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.watch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.watch-copy .section-title { margin-top: 0; }

.watch-visual { display: flex; justify-content: center; }

.watch-flow {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  width: 100%;
  max-width: 340px;
}

.watch-node {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--border);
}

.watch-node-icon {
  font-size: 0.9rem;
  color: var(--accent-bright);
}

.watch-node-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.watch-node-sub { font-size: 0.75rem; color: var(--text-tertiary); }

.watch-node-result {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
.watch-node-result .watch-node-label { color: var(--accent-bright); }

.watch-line {
  width: 1px;
  height: 24px;
  background: var(--border-strong);
  margin: 0 auto;
}

/* ---------- 11. FEATURES ---------- */
.feature-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 26px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--card-hover);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--accent-dim);
  color: var(--accent-bright);
  font-size: 1rem;
  margin-bottom: 16px;
}

.feature-card h3 { font-size: 0.98rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.86rem; line-height: 1.55; }

/* ---------- 12. PRIVACY ---------- */
.privacy-grid {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 56px;
  align-items: center;
}

.privacy-visual { display: flex; justify-content: center; }

.privacy-badge {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, rgba(79,124,255,0.16), transparent 60%), var(--card);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-bright);
}

.privacy-copy .section-title { margin-top: 0; }

.privacy-tags { display: flex; gap: 10px; margin-top: 24px; flex-wrap: wrap; }

.privacy-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}

/* ---------- 13. TIME SAVED ---------- */
.time-compare {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.time-path {
  width: 100%;
  max-width: 620px;
  padding: 20px 26px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  text-align: left;
}

.time-path-after {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.time-path-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.time-path-after .time-path-label { color: var(--accent-bright); }

.time-path-flow {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.time-path-flow span { color: var(--text-tertiary); margin: 0 6px; }

.time-statement {
  margin-top: 40px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ---------- 14. PRICING ---------- */
.pricing-card {
  margin: 56px auto 0;
  max-width: 420px;
  padding: 44px 36px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(79,124,255,0.08), var(--card) 45%);
  border: 1px solid var(--accent-border);
  box-shadow: var(--shadow-card), 0 0 60px -20px rgba(79,124,255,0.35);
}

.price-amount {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.price-label { color: var(--text-secondary); font-size: 0.95rem; margin-top: 4px; margin-bottom: 28px; }

.price-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  margin-bottom: 30px;
}

.price-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.price-list li::before {
  content: "✓";
  color: var(--accent-bright);
  font-weight: 700;
  flex-shrink: 0;
}

.price-footnote {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.no-sub {
  margin: 64px auto 0;
  max-width: 480px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

.no-sub-side { text-align: left; }
.no-sub-smartfiles { text-align: right; }

.no-sub-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}

.no-sub-line { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.7; }
.no-sub-muted { color: var(--text-tertiary); }

.no-sub-big { font-size: 1.9rem; font-weight: 800; color: var(--accent-bright); }

.no-sub-divider { width: 1px; height: 60px; background: var(--border-strong); }

.no-sub-caption { margin-top: 20px; color: var(--text-tertiary); font-size: 0.85rem; }

/* ---------- 15. FAQ ---------- */
.faq-list {
  margin-top: 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card);
  padding: 4px 22px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--text-tertiary);
  transition: transform 0.2s var(--ease);
  flex-shrink: 0;
}

.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  padding-bottom: 20px;
}

/* ---------- 16. FINAL CTA ---------- */
.final-cta { padding: 140px 0; }
.final-cta .section-title { margin-bottom: 8px; }
.final-cta .btn { margin-top: 32px; }
.final-cta .trust-line { margin-top: 18px; }

/* ---------- 17. FOOTER ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand p { color: var(--text-tertiary); font-size: 0.85rem; margin-top: 8px; }

.footer-links { display: flex; gap: 24px; font-size: 0.88rem; color: var(--text-secondary); }
.footer-links a:hover { color: var(--text-primary); }

.footer-copy {
  max-width: var(--container);
  margin: 32px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* ---------- 18. SCROLL REVEAL ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 19. RESPONSIVE ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }

  .watch-grid { grid-template-columns: 1fr; }
  .watch-copy { text-align: center; }
  .watch-copy .section-sub { margin-left: auto; margin-right: auto; }

  .privacy-grid { grid-template-columns: 1fr; text-align: center; }
  .privacy-copy { text-align: center; }
  .privacy-copy .section-sub { margin-left: auto; margin-right: auto; }
  .privacy-tags { justify-content: center; }

  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .ba-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 640px) {
  .section { padding: 80px 0; }
  .hero { padding: 56px 0 64px; }

  .demo-body { grid-template-columns: 1fr; }
  .demo-col-arrow { flex-direction: row; padding-top: 0; padding: 10px 0; }
  .arrow-svg { transform: rotate(90deg); }

  .feature-grid { grid-template-columns: 1fr; }

  .workflow-row { gap: 20px 0; }
  .workflow-sep { display: none; }
  .workflow-step { min-width: 76px; }

  .no-sub { grid-template-columns: 1fr; text-align: center; }
  .no-sub-side, .no-sub-smartfiles { text-align: center; }
  .no-sub-divider { width: 60px; height: 1px; margin: 0 auto; }

  .footer-inner { flex-direction: column; }
}