/* ============================================
   voice8.cutdee.com v2 — Components
   ============================================ */

/* ----- Top Nav ----- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--h-nav);
  background: rgba(11, 13, 24, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--w-page); margin: 0 auto; padding: 0 var(--s-6);
}
.brand {
  display: flex; align-items: center; gap: var(--s-3);
  font-weight: var(--fw-bold); font-size: var(--fs-md);
  color: var(--c-text);
}
.brand-logo {
  width: 36px; height: 36px;
  background: var(--g-cta);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: var(--sh-glow);
}
.brand-text { line-height: 1.1; }
.brand-text .sub { display: block; font-size: 11px; color: var(--c-muted); font-weight: var(--fw-normal); }

.nav-links { display: flex; gap: var(--s-2); align-items: center; }
.nav-link {
  padding: 8px 14px;
  color: var(--c-text-soft);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: all var(--d-fast) var(--ease);
}
.nav-link:hover { color: var(--c-text); background: rgba(1,160,64,0.08); }
.nav-link.active { color: var(--c-accent); background: rgba(1,160,64,0.12); }

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 12px 24px;
  font-size: var(--fs-base);
  font-weight: var(--fw-semi);
  border-radius: var(--r-md);
  border: 1px solid transparent;
  transition: all var(--d-fast) var(--ease);
  white-space: nowrap;
  user-select: none;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary {
  background: var(--g-cta);
  color: white;
  box-shadow: var(--sh-glow);
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(1,160,64,0.6), 0 12px 40px rgba(1,160,64,0.4);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }

.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,0.08); border-color: var(--c-border-hi); }

.btn-warm {
  background: var(--c-accent-warm);
  color: #2a1300;
  font-weight: var(--fw-bold);
}
.btn-warm:hover:not(:disabled) { background: #ffaf86; }

.btn-big { padding: 18px 36px; font-size: var(--fs-lg); border-radius: var(--r-lg); }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 14px; font-size: var(--fs-sm); }

/* ----- Card / Panel ----- */
.card {
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  backdrop-filter: blur(8px);
  transition: border-color var(--d-fast) var(--ease);
}
.card:hover { border-color: var(--c-border-hi); }
.card-title { font-size: var(--fs-md); font-weight: var(--fw-semi); margin-bottom: var(--s-2); }
.card-sub { font-size: var(--fs-sm); color: var(--c-muted); }

/* ----- Step card ----- */
.step {
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: var(--s-6) var(--s-8);
  position: relative;
  transition: all var(--d-base) var(--ease);
}
.step.active { border-color: var(--c-accent); box-shadow: var(--sh-glow); }
.step.done { border-color: var(--c-ok); }
.step-num {
  position: absolute;
  top: -16px; left: 24px;
  width: 32px; height: 32px;
  background: var(--g-cta);
  color: white;
  font-weight: var(--fw-bold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-sm);
  box-shadow: var(--sh-glow);
}
.step.done .step-num { background: var(--c-ok); }
.step-title { font-size: var(--fs-lg); font-weight: var(--fw-semi); margin-bottom: var(--s-2); }
.step-desc { color: var(--c-muted); font-size: var(--fs-sm); }

/* ----- Form fields ----- */
.field { display: flex; flex-direction: column; gap: var(--s-2); }
.label { font-size: var(--fs-sm); font-weight: var(--fw-semi); color: var(--c-text-soft); }
.help  { font-size: var(--fs-xs); color: var(--c-muted); }

.input, .textarea, .select {
  width: 100%;
  background: rgba(11,13,24,0.6);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 12px 14px;
  color: var(--c-text);
  font-size: var(--fs-base);
  transition: border-color var(--d-fast) var(--ease), box-shadow var(--d-fast) var(--ease);
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(1,160,64,0.15);
  outline: none;
}
.textarea { min-height: 100px; resize: vertical; line-height: 1.5; font-family: var(--font-sans); }

.input-counter { display: flex; justify-content: space-between; font-size: var(--fs-xs); color: var(--c-muted); }
.input-counter .over { color: var(--c-danger); }

/* ----- Chip / Tag ----- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  background: rgba(1,160,64,0.10);
  color: var(--c-accent);
  border: 1px solid rgba(1,160,64,0.30);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: all var(--d-fast) var(--ease);
}
.chip:hover { background: rgba(1,160,64,0.18); }
.chip.ok { background: rgba(93,220,140,0.10); color: var(--c-ok); border-color: rgba(93,220,140,0.30); }
.chip.warn { background: rgba(244,196,106,0.10); color: var(--c-warn); border-color: rgba(244,196,106,0.30); }
.chip.danger { background: rgba(255,122,138,0.10); color: var(--c-danger); border-color: rgba(255,122,138,0.30); }
.chip.muted { background: rgba(151,163,201,0.10); color: var(--c-muted); border-color: var(--c-border); }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--s-2); }

/* ----- File drop / Upload ----- */
.file-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--s-12) var(--s-6);
  border: 2px dashed var(--c-border-hi);
  border-radius: var(--r-lg);
  background: rgba(11,13,24,0.4);
  text-align: center;
  cursor: pointer;
  transition: all var(--d-fast) var(--ease);
  min-height: 200px;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--c-accent);
  background: rgba(1,160,64,0.08);
}
.file-drop-icon { font-size: 48px; margin-bottom: var(--s-3); }
.file-drop-title { font-size: var(--fs-md); font-weight: var(--fw-semi); margin-bottom: 4px; }
.file-drop-hint { font-size: var(--fs-sm); color: var(--c-muted); }
.file-drop input[type="file"] { display: none; }
.file-drop.has-file {
  border-style: solid;
  border-color: var(--c-ok);
  background: rgba(93,220,140,0.05);
}

/* ----- Audio player ----- */
.audio-player {
  display: flex; align-items: center; gap: var(--s-4);
  padding: var(--s-4) var(--s-5);
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
}
.audio-player button {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--g-cta);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  transition: transform var(--d-fast) var(--ease);
}
.audio-player button:hover { transform: scale(1.05); }
.audio-player .progress {
  flex: 1; height: 6px;
  background: rgba(255,255,255,0.10);
  border-radius: 3px;
  position: relative; overflow: hidden;
  cursor: pointer;
}
.audio-player .progress-bar {
  height: 100%;
  background: var(--g-cta);
  width: 0%;
  transition: width 80ms linear;
}
.audio-player .time { font-size: var(--fs-sm); color: var(--c-muted); font-variant-numeric: tabular-nums; min-width: 80px; text-align: right; }

/* ----- Waveform ----- */
.waveform {
  height: 64px;
  display: flex; align-items: center; gap: 2px;
  padding: 0 var(--s-2);
  background: rgba(11,13,24,0.4);
  border-radius: var(--r-md);
  overflow: hidden;
}
.waveform .bar {
  flex: 1; min-width: 2px;
  background: var(--c-accent);
  border-radius: 1px;
  opacity: 0.5;
}
.waveform.playing .bar { opacity: 1; }
.waveform .bar.played { background: var(--c-accent-2); opacity: 1; }

/* ----- Progress / Loader ----- */
.progress-block {
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-6);
}
.progress-track {
  height: 8px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  overflow: hidden;
  margin: var(--s-3) 0;
}
.progress-fill {
  height: 100%;
  background: var(--g-cta);
  width: 0%;
  border-radius: 4px;
  transition: width var(--d-base) var(--ease);
  position: relative;
  overflow: hidden;
}
.progress-fill::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.30), transparent);
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.progress-meta { display: flex; justify-content: space-between; font-size: var(--fs-sm); color: var(--c-muted); }

/* ----- Consent ----- */
.consent-box {
  display: flex; gap: var(--s-3);
  padding: var(--s-4);
  background: rgba(244,196,106,0.06);
  border: 1px solid rgba(244,196,106,0.30);
  border-radius: var(--r-md);
}
.consent-box input[type="checkbox"] {
  width: 22px; height: 22px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--c-accent);
  cursor: pointer;
}
.consent-box .consent-text { font-size: var(--fs-sm); line-height: 1.5; }
.consent-box .consent-text strong { color: var(--c-warn); }

/* ----- Toast ----- */
.toast-stack {
  position: fixed; top: 80px; right: 24px; z-index: 100;
  display: flex; flex-direction: column; gap: var(--s-2);
  max-width: 360px;
}
.toast {
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-info);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
  box-shadow: var(--sh-md);
  animation: slideIn 250ms var(--ease);
}
.toast.ok { border-left-color: var(--c-ok); }
.toast.warn { border-left-color: var(--c-warn); }
.toast.danger { border-left-color: var(--c-danger); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ----- Hero ----- */
.hero {
  padding: var(--s-20) var(--s-6) var(--s-16);
  text-align: center;
  position: relative;
}
.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(93,220,140,0.12);
  color: var(--c-ok);
  border: 1px solid rgba(93,220,140,0.30);
  border-radius: var(--r-pill);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  margin-bottom: var(--s-4);
}
.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: var(--fw-black);
  line-height: 1.1;
  margin-bottom: var(--s-4);
  background: var(--g-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: var(--fs-lg);
  color: var(--c-muted);
  max-width: 640px;
  margin: 0 auto var(--s-8);
}
.hero-cta { display: flex; gap: var(--s-3); justify-content: center; flex-wrap: wrap; }

/* ----- Section header ----- */
.section { padding: var(--s-12) var(--s-6); }
.section-head { text-align: center; margin-bottom: var(--s-10); }
.section-title { font-size: var(--fs-2xl); margin-bottom: var(--s-2); }
.section-sub { color: var(--c-muted); }

/* ----- Grid ----- */
.grid { display: grid; gap: var(--s-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ----- Voice card ----- */
.voice-card {
  background: var(--g-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  text-align: center;
  transition: all var(--d-fast) var(--ease);
  cursor: pointer;
}
.voice-card:hover { transform: translateY(-2px); border-color: var(--c-accent); box-shadow: var(--sh-glow); }
.voice-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--g-cta);
  margin: 0 auto var(--s-3);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  color: white;
}
.voice-name { font-weight: var(--fw-semi); margin-bottom: 4px; }
.voice-meta { font-size: var(--fs-xs); color: var(--c-muted); }

/* ----- Footer ----- */
.footer {
  padding: var(--s-12) var(--s-6) var(--s-8);
  border-top: 1px solid var(--c-border);
  text-align: center;
  color: var(--c-muted);
  font-size: var(--fs-sm);
}
.footer a { color: var(--c-accent); }

/* ----- Recording UI ----- */
.rec-indicator {
  display: inline-block;
  width: 12px; height: 12px;
  background: var(--c-danger);
  border-radius: 50%;
  animation: pulse 1s infinite;
  margin-right: 8px;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

/* ----- Utility ----- */
.text-center { text-align: center; }
.flex { display: flex; }
.gap-2 { gap: var(--s-2); }
.gap-3 { gap: var(--s-3); }
.gap-4 { gap: var(--s-4); }
.mt-2 { margin-top: var(--s-2); }
.mt-4 { margin-top: var(--s-4); }
.mt-6 { margin-top: var(--s-6); }
.mt-8 { margin-top: var(--s-8); }
.mb-2 { margin-bottom: var(--s-2); }
.mb-4 { margin-bottom: var(--s-4); }
.mb-6 { margin-bottom: var(--s-6); }
.mb-8 { margin-bottom: var(--s-8); }

/* ============================================
   v3 Phase 3: Accessibility & i18n
   ============================================ */

/* Skip link — hidden until focused */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 12px 20px;
  background: var(--c-accent);
  color: white;
  font-weight: var(--fw-semi);
  z-index: 1000;
  border-radius: 0 0 8px 0;
  transition: top var(--d-fast) var(--ease);
}
.skip-link:focus { top: 0; outline: 2px solid white; outline-offset: -2px; }

/* Main focusable for skip link */
main:focus { outline: none; }

/* Lang toggle button */
.lang-toggle {
  padding: 6px 12px;
  background: rgba(1,160,64,0.12);
  color: var(--c-accent);
  border: 1px solid rgba(1,160,64,0.30);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  cursor: pointer;
  transition: all var(--d-fast) var(--ease);
  min-width: 44px;
  min-height: 36px;
}
.lang-toggle:hover { background: rgba(1,160,64,0.20); }
.lang-toggle:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }

/* ARIA live regions */
[aria-live] { position: relative; }

/* Better focus indicators (WCAG 2.1) */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast support */
@media (prefers-contrast: more) {
  :root {
    --c-border: rgba(255,255,255,0.4);
    --c-muted: #b0bdd0;
  }
}

/* Print styles */
@media print {
  .nav, .toast-stack, .lang-toggle, .skip-link { display: none !important; }
  body { background: white; color: black; }
  .card, section.chapter { box-shadow: none; border: 1px solid #ccc; }
}