/* ==========================================================================
   SaveTok — design system
   Palette is built from the logo pink (#FE004F). Bricolage Grotesque for
   display type, Plus Jakarta Sans for body/UI text.
   ========================================================================== */

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

:root {
  --pink:        #fe004f;
  --pink-dark:   #c7003f;
  --pink-soft:   #ffe3ec;
  --pink-text:   #c7003f; /* AA-safe pink for small/normal-weight text */
  --violet:      #7c3aed;
  --violet-soft: #efe6ff;

  --bg:        #fffaf9;
  --surface:   #ffffff;
  --card:      #fff6f8;
  --border:    #ffe0e8;
  --ink:       #221019;
  --muted:     #6f5c67;
  --success:   #0b7550;
  --danger:    #b3134a;

  --radius-sm: 10px;
  --radius:    18px;
  --radius-lg: 26px;
  --shadow:    0 10px 40px -12px rgba(254, 0, 79, .18);
  --shadow-sm: 0 4px 16px -4px rgba(34, 16, 25, .08);

  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg:      #150c11;
  --surface: #1e1319;
  --card:    #241620;
  --border:  #382230;
  --ink:     #f8ecf1;
  --muted:   #a9909e;
  --pink-soft:   #3a1524;
  --pink-text:   #ff3d7f;
  --success:     #22c78a;
  --violet-soft: #241a3d;
  --shadow: 0 10px 45px -10px rgba(254, 0, 79, .35);
  --shadow-sm: 0 4px 20px -4px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background .25s ease, color .25s ease;
}

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}

/* ── Ambient background ── */
.bg-deco {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.bg-deco span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
}
[data-theme="dark"] .bg-deco span { opacity: .28; }
.bg-deco span:nth-child(1) {
  width: 520px; height: 520px;
  background: radial-gradient(circle, var(--pink) 0%, transparent 72%);
  top: -220px; right: -160px;
}
.bg-deco span:nth-child(2) {
  width: 460px; height: 460px;
  background: radial-gradient(circle, var(--violet) 0%, transparent 72%);
  bottom: -200px; left: -180px;
}

.skip-link {
  position: absolute;
  left: -999px; top: auto;
  background: var(--pink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 100;
  font-size: 13px;
  text-decoration: none;
}
.skip-link:focus { left: 20px; top: 20px; }

/* ── Top nav ── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  width: 38px; height: 38px;
  background: var(--pink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 0 0 4px var(--pink-soft);
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.5px;
}
.logo-text span { color: var(--pink); }

.topnav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}
.topnav-links { display: flex; gap: 18px; }
.topnav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: color .2s;
}
.topnav-links a:hover, .topnav-links a:focus-visible { color: var(--pink); }

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 52px; height: 30px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 3px;
}
.theme-toggle .knob {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--violet));
  display: grid;
  place-items: center;
  color: #fff;
  transition: transform .25s cubic-bezier(.4,0,.2,1);
  transform: translateX(0);
}
[data-theme="dark"] .theme-toggle .knob { transform: translateX(22px); }
.theme-toggle svg { width: 13px; height: 13px; }

@media (max-width: 420px) {
  .logo-text { font-size: 19px; }
  .logo-icon { width: 32px; height: 32px; }
  .topnav-links { display: none; }
  .topnav-right { gap: 12px; }
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px 90px;
}

/* ── Header / hero ── */
header.hero {
  text-align: center;
  padding: 58px 0 36px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--pink-text);
  background: var(--pink-soft);
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5.4vw, 46px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -1.2px;
  color: var(--ink);
  margin-bottom: 14px;
}
h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--pink), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.subtitle {
  color: var(--muted);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto;
}
.trust-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}
.trust-row li {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.trust-row li::before {
  content: '✓';
  color: var(--success);
  margin-right: 6px;
  font-weight: 800;
}

/* ── Form ── */
.form-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  margin-bottom: 34px;
  box-shadow: var(--shadow);
}
.input-row { display: flex; gap: 10px; }
.input-field-wrap {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}
.url-input {
  width: 100%;
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 15px 70px 15px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.url-input::placeholder { color: var(--muted); }
.url-input:focus {
  border-color: var(--pink);
  box-shadow: 0 0 0 4px var(--pink-soft);
}
.paste-btn {
  position: absolute;
  top: 50%;
  right: 7px;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--pink-soft);
  color: var(--pink-text);
  border: none;
  border-radius: 8px;
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s;
  z-index: 1;
}
.paste-btn:hover { background: var(--pink); color: #fff; }

.btn-fetch {
  background: linear-gradient(120deg, var(--pink-dark), #9c0031);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 15px 28px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .15s, box-shadow .2s, opacity .2s;
  box-shadow: 0 8px 24px -6px rgba(254,0,79,.55);
}
.btn-fetch:hover { transform: translateY(-1px); box-shadow: 0 10px 28px -6px rgba(254,0,79,.65); }
.btn-fetch:active { transform: scale(.97); }
.btn-fetch:disabled { opacity: .7; cursor: default; transform: none; }

.hint { color: var(--muted); font-size: 12px; margin-top: 12px; text-align: center; }

/* ── Error ── */
.error-box {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--danger);
  font-size: 14px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

/* ── Loading ── */
.loading {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px 0 4px;
  color: var(--muted);
  font-size: 13px;
}
.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid var(--border);
  border-top-color: var(--pink);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Result card ── */
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  animation: fadeUp .45s ease both;
  margin-bottom: 34px;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.result-header {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-bottom: 1px solid var(--border);
}
.thumb-wrap {
  position: relative;
  flex-shrink: 0;
  width: 92px;
  height: 122px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--card);
}
.thumb-wrap img { width: 100%; height: 100%; object-fit: cover; }
.duration-badge {
  position: absolute;
  bottom: 6px; right: 6px;
  background: rgba(0,0,0,.75);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.meta { flex: 1; min-width: 0; }
.meta-top-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.video-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.icon-btn {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: color .2s, border-color .2s, background .2s;
}
.icon-btn:hover { color: var(--pink); border-color: var(--pink-soft); background: var(--pink-soft); }
.author-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.author-avatar { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; background: var(--border); }
.author-name { font-size: 13px; color: var(--muted); font-weight: 600; }
.stats-row { display: flex; flex-wrap: wrap; gap: 16px; }
.stat { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--muted); font-weight: 600; }
.stat svg { opacity: .8; }

.dl-section { padding: 24px; }
.dl-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 14px;
}
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.dl-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  transition: transform .15s, box-shadow .2s;
  cursor: pointer;
}
.dl-btn:hover { transform: translateY(-2px); }
.dl-btn:active { transform: scale(.97); }
.dl-btn .icon { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; flex-shrink: 0; }
.dl-btn .info .name { font-weight: 700; font-size: 13px; color: var(--ink); }
.dl-btn .info .detail { font-size: 11px; margin-top: 1px; color: var(--muted); }

.btn-hd {
  background: linear-gradient(135deg, color-mix(in srgb, var(--pink) 16%, transparent), color-mix(in srgb, var(--pink) 6%, transparent));
  border: 1px solid color-mix(in srgb, var(--pink) 30%, transparent);
}
.btn-hd .icon { background: var(--pink-soft); color: var(--pink); }
.btn-hd:hover { box-shadow: 0 8px 22px -6px rgba(254,0,79,.35); border-color: var(--pink); }

.btn-mp3 {
  background: linear-gradient(135deg, color-mix(in srgb, var(--violet) 14%, transparent), color-mix(in srgb, var(--violet) 5%, transparent));
  border: 1px solid color-mix(in srgb, var(--violet) 28%, transparent);
}
.btn-mp3 .icon { background: var(--violet-soft); color: var(--violet); }
.btn-mp3:hover { box-shadow: 0 8px 22px -6px rgba(124,58,237,.3); border-color: var(--violet); }

.btn-cover {
  background: linear-gradient(135deg, color-mix(in srgb, var(--success) 14%, transparent), color-mix(in srgb, var(--success) 5%, transparent));
  border: 1px solid color-mix(in srgb, var(--success) 28%, transparent);
}
.btn-cover .icon { background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.btn-cover:hover { box-shadow: 0 8px 22px -6px rgba(18,166,116,.3); border-color: var(--success); }

/* ── Features ── */
.features { margin-top: 44px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-top: 22px; }
.feat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.feat-icon {
  width: 42px; height: 42px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: var(--pink-soft);
  display: grid;
  place-items: center;
  font-size: 20px;
}
.feat-card h3 { font-family: var(--font-display); font-size: 14.5px; font-weight: 700; margin-bottom: 6px; }
.feat-card p { font-size: 12.5px; color: var(--muted); line-height: 1.55; }

/* ── How To ── */
.howto { margin: 52px 0 52px; }
.section-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 22px;
  text-align: center;
  letter-spacing: -.4px;
}
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.step-num {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--pink-dark), var(--violet));
  color: #fff;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 12px;
}
.step h3 { font-family: var(--font-display); font-size: 14.5px; font-weight: 700; margin-bottom: 6px; }
.step p { font-size: 12.5px; color: var(--muted); line-height: 1.55; }

/* ── About / text card ── */
.text-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
}
.text-card h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -.4px;
}
.text-card h3 { font-family: var(--font-display); font-size: 19px; font-weight: 700; margin: 26px 0 14px; letter-spacing: -.2px; }
.text-card h3:first-of-type { margin-top: 0; }
.text-card h4 { font-family: var(--font-display); font-size: 15px; font-weight: 700; margin: 18px 0 8px; color: var(--pink-text); }
.text-card p { font-size: 14.5px; color: var(--muted); line-height: 1.75; margin-bottom: 12px; }
.text-card ul { font-size: 14.5px; color: var(--muted); display: block; list-style: none; margin: 14px 0; padding: 0; }
.text-card ul li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 8px;
  line-height: 1.6;
}
.text-card ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--pink), var(--violet));
}
.text-card strong { color: var(--ink); }
.text-card a { color: var(--pink-text); font-weight: 600; }

/* ── FAQ ── */
.faq { margin-top: 52px; scroll-margin-top: 90px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: color .2s;
}
.faq-q:hover { color: var(--pink); }
.faq-chevron { flex-shrink: 0; color: var(--pink); transition: transform .25s; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 20px 18px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* ── Footer ── */
footer {
  text-align: center;
  padding: 40px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  border-top: 1px solid var(--border);
  margin-top: 64px;
}
footer a { color: var(--muted); text-decoration: none; font-weight: 600; }
footer a:hover { color: var(--pink); }

/* ── Toast ── */
.toast-stack {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}
.toast {
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  font-weight: 600;
  padding: 11px 18px;
  border-radius: 999px;
  box-shadow: 0 10px 30px -8px rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast svg { color: var(--success); flex-shrink: 0; }

/* ── Back to top ── */
.to-top {
  position: fixed;
  right: 20px;
  bottom: 22px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--pink);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .25s, transform .25s;
  z-index: 40;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ── Reveal on scroll ── */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 520px) {
  .input-row { flex-direction: column; }
  .url-input { padding-right: 46px; }
  .paste-btn { padding: 8px; gap: 0; }
  .paste-btn .paste-label { display: none; }
  .btn-fetch { width: 100%; text-align: center; }
  .result-header { flex-direction: column; align-items: center; text-align: center; }
  .meta-top-row { flex-direction: column; align-items: center; }
  .stats-row { justify-content: center; }
  .author-row { justify-content: center; }
  .to-top { right: 14px; bottom: 14px; }
}