/* ============================================================
   VidLab — Free Video Tools by 7By
   Light theme (user-approved deviation from dark-only system).
   Keeps brand fonts (Outfit + JetBrains Mono) and the magenta
   video-category accent (#FF006E) from DESIGN.md.
   ============================================================ */

:root {
  --bg: #F7F7FB;
  --surface: #FFFFFF;
  --surface-2: #F1F1F8;
  --ink: #14141F;
  --muted: rgba(20, 20, 31, 0.55);
  --dim: rgba(20, 20, 31, 0.35);
  --border: rgba(20, 20, 31, 0.08);
  --border-bright: rgba(20, 20, 31, 0.18);

  --video: #FF006E;          /* magenta — video tools (brand category color) */
  --video-dim: rgba(255, 0, 110, 0.10);
  --violet: #7C3AED;
  --violet-dim: rgba(124, 58, 237, 0.10);
  --cyan: #0090C8;
  --cyan-dim: rgba(0, 144, 200, 0.10);
  --amber: #D98A00;
  --amber-dim: rgba(217, 138, 0, 0.12);

  --success: #00A278;
  --error: #E03131;

  --grad: linear-gradient(120deg, #FF006E, #7C3AED);

  --r-sm: 6px; --r-md: 10px; --r-lg: 12px; --r-xl: 20px; --r-pill: 9999px;
  --shadow-card: 0 1px 2px rgba(20,20,31,.04), 0 8px 24px rgba(20,20,31,.06);
  --shadow-pop: 0 12px 40px rgba(255, 0, 110, 0.14), 0 2px 6px rgba(20,20,31,.06);
  --nav-h: 64px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* soft pastel blobs behind everything — the light-theme signature */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px 400px at 85% -5%, rgba(255,0,110,.07), transparent 70%),
    radial-gradient(700px 500px at -10% 30%, rgba(124,58,237,.07), transparent 70%),
    radial-gradient(500px 400px at 60% 110%, rgba(0,144,200,.06), transparent 70%);
}

.mono { font-family: 'JetBrains Mono', monospace; }

a { color: var(--video); text-decoration: none; }
a:hover { text-decoration: underline; }

.hidden { display: none !important; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; height: 100%;
  display: flex; align-items: center; gap: 28px; padding: 0 24px;
}
.logo {
  font-weight: 800; font-size: 20px; letter-spacing: -0.5px;
  color: var(--ink); display: flex; align-items: center; gap: 8px;
}
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--grad); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.logo b { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links a.active { color: var(--video); }
.nav .btn { margin-left: 8px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-size: 14px; font-weight: 600;
  padding: 10px 20px; border-radius: var(--r-md);
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 4px 14px rgba(255,0,110,.28); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(255,0,110,.36); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--border-bright); }
.btn-ghost:hover { border-color: var(--video); color: var(--video); }
.btn-lg { padding: 14px 30px; font-size: 16px; border-radius: var(--r-lg); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero {
  padding: calc(var(--nav-h) + 72px) 24px 48px;
  text-align: center; max-width: 900px; margin: 0 auto;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px; letter-spacing: 2px;
  color: var(--video); border: 1px solid rgba(255,0,110,.35);
  background: var(--video-dim);
  padding: 6px 16px; border-radius: var(--r-pill); margin-bottom: 24px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--video);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: .5; }
}
.hero h1 {
  font-size: clamp(38px, 6vw, 64px); font-weight: 800;
  letter-spacing: -2px; line-height: 1.05; margin-bottom: 18px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 auto 28px; }

/* ---------- Sections ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 64px 24px; }
.section-label {
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  letter-spacing: 3px; text-transform: uppercase; color: var(--video);
  margin-bottom: 10px;
}
.section h2 { font-size: 32px; font-weight: 800; letter-spacing: -1px; margin-bottom: 12px; }
.section-sub { color: var(--muted); max-width: 620px; margin-bottom: 36px; }

/* ---------- Tool cards ---------- */
.tool-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.tool-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
  display: flex; flex-direction: column; gap: 12px;
  opacity: 0; transform: translateY(24px);
}
.tool-card.in { opacity: 1; transform: translateY(0); transition: opacity .5s ease, transform .5s ease, box-shadow .3s ease; }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); }
.tc-icon {
  width: 48px; height: 48px; border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.tc-icon.video { background: var(--video-dim); }
.tc-icon.violet { background: var(--violet-dim); }
.tc-icon.cyan { background: var(--cyan-dim); }
.tc-icon.amber { background: var(--amber-dim); }
.tc-cat {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 2px; text-transform: uppercase;
}
.tc-cat.video { color: var(--video); }
.tc-cat.violet { color: var(--violet); }
.tc-cat.cyan { color: var(--cyan); }
.tc-cat.amber { color: var(--amber); }
.tool-card h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.tool-card p { font-size: 14px; color: var(--muted); flex: 1; }
.tc-action { font-weight: 600; font-size: 14px; }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed rgba(255,0,110,.4); border-radius: var(--r-xl);
  background: var(--surface); padding: 56px 24px; text-align: center;
  cursor: pointer; transition: border-color .2s ease, background .2s ease;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--video); background: rgba(255,0,110,.03);
}
.dz-icon { font-size: 44px; margin-bottom: 12px; }
.dropzone h2 { font-size: 24px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 6px; }
.dropzone p { color: var(--muted); margin-bottom: 18px; }
.dz-formats { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 20px; }
.chip {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 1px;
  padding: 4px 10px; border-radius: var(--r-pill);
  background: var(--surface-2); color: var(--muted); border: 1px solid var(--border);
}
.dz-privacy { font-size: 13px; color: var(--dim); margin-top: 16px; }

/* ---------- Tool workspace ---------- */
.tool-wrap { max-width: var(--maxw); margin: 0 auto; padding: 24px; }
.workspace {
  display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start;
}
@media (max-width: 900px) { .workspace { grid-template-columns: 1fr; } }

.stage {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 16px; box-shadow: var(--shadow-card);
  position: relative;
}
.stage video, .stage canvas, .stage img {
  display: block; width: 100%; height: auto; border-radius: var(--r-md);
  background: var(--surface-2);
}
.canvas-holder { position: relative; }
.canvas-holder canvas.overlay {
  position: absolute; inset: 0; width: 100%; height: 100%;
  background: transparent; cursor: crosshair;
}
.checkerboard {
  background-image:
    linear-gradient(45deg, #e8e8ef 25%, transparent 25%, transparent 75%, #e8e8ef 75%),
    linear-gradient(45deg, #e8e8ef 25%, transparent 25%, transparent 75%, #e8e8ef 75%);
  background-size: 20px 20px; background-position: 0 0, 10px 10px;
  background-color: #f8f8fc; border-radius: var(--r-md);
}

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 22px; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 18px;
}
.panel h3 {
  font-size: 13px; font-family: 'JetBrains Mono', monospace;
  letter-spacing: 2px; text-transform: uppercase; color: var(--muted);
  font-weight: 500;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; }
.field .hint { font-size: 12px; color: var(--dim); }
.field select, .field input[type="text"], .field input[type="number"] {
  font-family: inherit; font-size: 14px; padding: 9px 12px;
  border: 1px solid var(--border-bright); border-radius: var(--r-md);
  background: var(--surface); color: var(--ink);
}
.field select:focus, .field input:focus { outline: 2px solid rgba(255,0,110,.3); border-color: var(--video); }

input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
  background: var(--surface-2); border-radius: var(--r-pill); outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--video); cursor: pointer;
  box-shadow: 0 2px 8px rgba(255,0,110,.4);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; border: none;
  background: var(--video); cursor: pointer;
}
.range-row { display: flex; align-items: center; gap: 12px; }
.range-val {
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  min-width: 44px; text-align: right; color: var(--video); font-weight: 500;
}

.seg {
  display: flex; background: var(--surface-2); border-radius: var(--r-md);
  padding: 3px; gap: 3px;
}
.seg button {
  flex: 1; font-family: inherit; font-size: 13px; font-weight: 600;
  padding: 7px 8px; border: none; border-radius: 8px;
  background: transparent; color: var(--muted); cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.seg button.active { background: var(--surface); color: var(--video); box-shadow: 0 1px 4px rgba(20,20,31,.1); }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch {
  width: 30px; height: 30px; border-radius: 8px; cursor: pointer;
  border: 2px solid var(--border); transition: transform .15s ease;
}
.swatch:hover { transform: scale(1.1); }
.swatch.active { border-color: var(--video); box-shadow: 0 0 0 2px rgba(255,0,110,.25); }

.checkbox-row { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.checkbox-row input { accent-color: var(--video); width: 16px; height: 16px; }

/* ---------- Progress overlay ---------- */
.stage-overlay {
  position: absolute; inset: 0; border-radius: var(--r-xl);
  background: rgba(255,255,255,.88); backdrop-filter: blur(6px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; z-index: 10; padding: 24px; text-align: center;
}
.spinner {
  width: 40px; height: 40px; border-radius: 50%;
  border: 3px solid var(--video-dim); border-top-color: var(--video);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.overlay-status { font-weight: 600; font-size: 15px; }
.overlay-bar {
  width: 240px; height: 4px; background: var(--surface-2);
  border-radius: var(--r-pill); overflow: hidden;
}
.overlay-bar-fill {
  height: 100%; width: 0%; background: var(--grad);
  border-radius: var(--r-pill); transition: width .3s ease;
}
.overlay-note { font-size: 12px; color: var(--dim); max-width: 320px; }

/* ---------- Toolbar / result ---------- */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar-spacer { flex: 1; }

.result-stats {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
}
.result-stats .stat { color: var(--muted); }
.result-stats .stat b { color: var(--ink); font-weight: 500; }
.result-stats .stat.good b { color: var(--success); }

.boxes-list { display: flex; flex-direction: column; gap: 8px; }
.box-item {
  display: flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  background: var(--surface-2); border-radius: var(--r-md); padding: 8px 10px;
}
.box-item .del {
  margin-left: auto; background: none; border: none; cursor: pointer;
  color: var(--error); font-size: 14px; padding: 0 4px;
}

.notice {
  font-size: 13px; color: var(--muted); background: var(--surface-2);
  border-left: 3px solid var(--video); border-radius: var(--r-sm);
  padding: 10px 14px;
}
.notice.warn { border-left-color: var(--amber); }

/* ---------- Ad placeholder slots (AdSense strategy per DESIGN.md) ---------- */
.ad-slot {
  max-width: 728px; margin: 24px auto; min-height: 90px;
  border: 1px dashed var(--border-bright); border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 2px; color: var(--dim); text-transform: uppercase;
}
.ad-slot.rect { max-width: 300px; min-height: 250px; margin: 0 auto; }

/* ---------- Steps / FAQ ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.step {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 24px; box-shadow: var(--shadow-card);
}
.step-num {
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  color: var(--video); margin-bottom: 10px; letter-spacing: 2px;
}
.step h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--muted); }

.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); margin-bottom: 10px; overflow: hidden;
}
.faq-item summary {
  padding: 16px 20px; font-weight: 600; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::after { content: '+'; color: var(--video); font-size: 20px; font-weight: 400; }
.faq-item[open] summary::after { content: '−'; }
.faq-item .faq-body { padding: 0 20px 16px; color: var(--muted); font-size: 14px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border); background: var(--surface);
  margin-top: 64px;
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 48px 24px 24px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
}
@media (max-width: 760px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
.footer h4 { font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer a { color: var(--muted); font-size: 14px; }
.footer a:hover { color: var(--video); }
.footer-desc { color: var(--muted); font-size: 14px; max-width: 280px; margin-top: 10px; }
.footer-bottom {
  max-width: var(--maxw); margin: 0 auto; padding: 20px 24px;
  border-top: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--dim);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .nav-links { display: none; }
  .hero { padding-top: calc(var(--nav-h) + 44px); }
  .section { padding: 44px 16px; }
  .tool-wrap { padding: 16px; }
}