/* ═══════════════════════════════════════════════════════════
   transcriptionReview.css  ·  Mainframe Design System v3
   ═══════════════════════════════════════════════════════════ */

:root {
  --font-heading: 'HelveticaNowDisplay-Medium','Helvetica Neue',Arial,sans-serif;
  --font-body:    'HelveticaNowDisplayW01-Rg','Helvetica Neue',Arial,sans-serif;
  --ink:          #0a0a0a;
  --ink-70:       rgba(10,10,10,0.70);
  --ink-45:       rgba(10,10,10,0.45);
  --ink-20:       rgba(10,10,10,0.20);
  --ink-10:       rgba(10,10,10,0.10);
  --ink-05:       rgba(10,10,10,0.05);
  --surface:      #f4f3ef;
  --card:         #ffffff;
  --radius-pill:  9999px;
  --radius-xl:    24px;
  --radius-lg:    18px;
  --shadow-xs:    0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm:    0 2px 10px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:    0 6px 28px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.8);
}

@keyframes fade-up {
  from { opacity:0; transform:translateY(14px); }
  to   { opacity:1; transform:none; }
}

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

html {
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  background: var(--surface);
  color: var(--ink);
}

body {
  min-height: 100vh;
  background: var(--surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.028'/%3E%3C/svg%3E");
  padding: 0 20px 100px;
  font-family: var(--font-body);
}

.container {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding-top: 48px;
  animation: fade-up .7s cubic-bezier(.22,1,.36,1) backwards;
  animation-delay: .05s;
}

/* ─── Eyebrow label above h1 ─────────────────────────────── */
.container::before {
  content: '✦  Kết quả phiên âm';
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-45);
  margin-bottom: 14px;
  padding: 6px 14px;
  background: var(--card);
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-xs);
}

h1 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.0;
  color: var(--ink);
  margin-bottom: 12px;
}

.meta {
  font-size: 12px;
  color: var(--ink-45);
  line-height: 2;
  margin-bottom: 24px;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}
.meta strong { color: var(--ink); font-weight: 500; }

/* Nav row */
div[style*="margin-bottom"] {
  display: flex !important;
  gap: 6px !important;
  flex-wrap: wrap;
  margin-bottom: 22px !important;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 24px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-family: var(--font-body);
  letter-spacing: -0.01em;
  cursor: pointer;
  border: 1px solid var(--ink-10);
  text-decoration: none;
  white-space: nowrap;
  background: var(--card);
  color: var(--ink);
  box-shadow: var(--shadow-xs), var(--shadow-inset);
  margin: 0 5px 5px 0;
  transition: background .2s, color .2s, border-color .2s, box-shadow .2s,
              transform .18s cubic-bezier(.22,1,.36,1);
}
.btn:hover:not(:disabled) {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.btn:active:not(:disabled) { transform: scale(.97); box-shadow: var(--shadow-xs); }
.btn:disabled { opacity:.36; cursor:not-allowed; }

/* ─── Transcript body ────────────────────────────────────── */
.transcript {
  background: var(--card);
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-xl);
  padding: 28px 30px;
  font-size: 15px;
  line-height: 1.95;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--ink-70);
  box-shadow: var(--shadow-sm), var(--shadow-inset);
  animation: fade-up .7s cubic-bezier(.22,1,.36,1) backwards;
  animation-delay: .18s;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-10) transparent;
}
.transcript::-webkit-scrollbar { width:4px; }
.transcript::-webkit-scrollbar-track { background:transparent; }
.transcript::-webkit-scrollbar-thumb { background:var(--ink-10); border-radius:99px; }