/* ================================================
   Gujarati TTS v2 — Warm Saffron / Ivory
   Libre Baskerville + DM Sans
================================================ */
:root {
  --bg:          #faf7f2;
  --surface:     #ffffff;
  --border:      #e4ddd0;
  --accent:      #d4731a;
  --accent-lt:   #f5ede0;
  --accent-dk:   #a85812;
  --text:        #1c1510;
  --text-mid:    #5a4635;
  --text-soft:   #9a8878;
  --green:       #2e7d52;
  --green-bg:    #edf7f1;
  --green-bd:    #b0d9c0;
  --red:         #c0392b;
  --red-bg:      #fdf0ef;
  --red-bd:      #f0c0bb;
  --r:           10px;
  --shadow:      0 2px 18px rgba(80,50,20,.07);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
}

/* ── Layout ── */
.page-wrap { max-width: 740px; margin: 0 auto; padding: 0 22px 72px; }

/* ── Header ── */
.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 38px 0 28px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 30px;
}
.logo-block { display: flex; align-items: center; gap: 16px; }
.logo-symbol {
  font-family: 'Libre Baskerville', serif;
  font-size: 44px; line-height: 1;
  color: var(--accent);
  background: var(--accent-lt);
  border: 2px solid var(--accent);
  border-radius: 8px;
  width: 60px; height: 60px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-title {
  font-family: 'Libre Baskerville', serif;
  font-size: 21px; font-weight: 700; letter-spacing: -.3px;
}
.logo-sub { font-size: 12px; color: var(--text-soft); margin-top: 2px; letter-spacing: .3px; }
.badge {
  font-size: 10.5px; font-weight: 500; letter-spacing: 1px;
  text-transform: uppercase; white-space: nowrap;
  background: var(--accent); color: #fff;
  padding: 5px 13px; border-radius: 20px;
}

/* ── Navigation ── */
.nav-bar { display: flex; gap: 12px; margin-bottom: 24px; }
.nav-btn {
  padding: 7px 18px; border-radius: 20px; font-size: 13px; font-weight: 500;
  text-decoration: none; border: 1.5px solid var(--border);
  color: var(--text-mid); background: var(--surface); transition: all .18s;
}
.nav-btn:hover { border-color: var(--accent); color: var(--accent); }
.nav-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px 28px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  position: relative;
}
.step-tag {
  position: absolute; top: -12px; left: 24px;
  background: var(--accent); color: #fff;
  font-family: 'Libre Baskerville', serif;
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px; letter-spacing: .5px;
}
.card-title {
  font-family: 'Libre Baskerville', serif;
  font-size: 18px; font-weight: 700;
  margin-bottom: 5px; margin-top: 4px;
}
.card-desc { font-size: 13px; color: var(--text-soft); margin-bottom: 16px; }
.card-desc code {
  background: var(--accent-lt); border-radius: 4px;
  padding: 1px 6px; font-size: 12px; color: var(--accent-dk);
}
.card-cta {
  background: var(--accent-lt);
  border-color: #d9c8b0;
  text-align: center;
  padding: 32px 28px;
}

/* ── API Key row ── */
.row-key { display: flex; gap: 10px; align-items: center; }
.input-wrap {
  flex: 1; display: flex; align-items: center;
  border: 1.5px solid var(--border); border-radius: var(--r);
  background: var(--bg); overflow: hidden;
  transition: border-color .18s;
}
.input-wrap:focus-within { border-color: var(--accent); }
.input {
  flex: 1; border: none; outline: none;
  padding: 10px 14px;
  font-family: 'DM Sans', sans-serif; font-size: 14px;
  background: transparent; color: var(--text);
}
.btn-eye {
  background: none; border: none; cursor: pointer;
  padding: 0 12px; color: var(--text-soft);
  display: flex; align-items: center;
}
.btn-eye svg { width: 18px; height: 18px; }
.btn-eye:hover { color: var(--accent); }

/* ── Two-col ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 14px; }
@media (max-width: 520px) { .two-col { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.label { font-size: 11.5px; font-weight: 500; text-transform: uppercase; letter-spacing: .5px; color: var(--text-mid); }
.select {
  border: 1.5px solid var(--border); border-radius: var(--r);
  padding: 9px 12px;
  font-family: 'DM Sans', sans-serif; font-size: 14px;
  color: var(--text); background: var(--bg);
  cursor: pointer; outline: none;
  transition: border-color .18s;
}
.select:focus { border-color: var(--accent); }
.select:disabled { opacity: .5; cursor: not-allowed; }

.model-info {
  font-size: 13px; color: var(--text-mid);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 7px; padding: 9px 14px;
}
.model-info strong { color: var(--accent); }

/* ── Tabs ── */
.tabs { display: flex; gap: 2px; margin-bottom: 16px; border-bottom: 1.5px solid var(--border); }
.tab {
  background: none; border: none; cursor: pointer;
  padding: 8px 20px;
  font-family: 'DM Sans', sans-serif; font-size: 14px;
  color: var(--text-soft);
  border-bottom: 2.5px solid transparent; margin-bottom: -1.5px;
  transition: all .18s;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 500; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Textarea ── */
.textarea {
  width: 100%; min-height: 230px;
  border: 1.5px solid var(--border); border-radius: var(--r);
  padding: 14px 16px; resize: vertical; outline: none;
  font-family: 'DM Sans', sans-serif; font-size: 14.5px;
  color: var(--text); background: var(--bg); line-height: 1.75;
  transition: border-color .18s;
}
.textarea:focus { border-color: var(--accent); }
.char-row {
  margin-top: 8px; font-size: 12.5px; color: var(--text-soft);
  display: flex; align-items: center; gap: 10px; justify-content: flex-end;
}
.char-warn { color: #d47b0a; font-weight: 500; }

/* ── File Drop ── */
.file-drop {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; padding: 44px 24px;
  border: 2px dashed var(--border); border-radius: var(--r);
  cursor: pointer; transition: all .2s;
}
.file-drop:hover, .file-drop.drag-over {
  border-color: var(--accent); background: var(--accent-lt);
}
.file-icon { font-size: 38px; line-height: 1; }
.file-label { font-size: 14px; color: var(--text-mid); }
.file-name { font-size: 13px; color: var(--accent); font-weight: 500; }

/* ── Buttons ── */
.btn-generate {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--accent); color: #fff; border: none;
  border-radius: var(--r); padding: 14px 52px;
  font-family: 'DM Sans', sans-serif; font-size: 16px; font-weight: 500;
  cursor: pointer; letter-spacing: .2px;
  transition: background .18s, transform .1s;
}
.btn-generate:hover:not(:disabled) { background: var(--accent-dk); }
.btn-generate:active:not(:disabled) { transform: scale(.98); }
.btn-generate:disabled { opacity: .6; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface); border: 1.5px solid var(--accent);
  color: var(--accent); border-radius: var(--r);
  padding: 10px 18px; white-space: nowrap;
  font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all .18s;
}
.btn-secondary:hover { background: var(--accent); color: #fff; }
.btn-secondary:disabled { opacity: .6; cursor: not-allowed; }

/* ── Spinner ── */
.spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Progress ── */
.progress-wrap { margin-top: 22px; text-align: left; }
.progress-bar-track {
  height: 7px; background: #e4ddd0; border-radius: 10px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%; width: 0%; background: var(--accent);
  border-radius: 10px; transition: width .4s ease;
}
.progress-msg {
  font-size: 13px; color: var(--text-mid); margin-top: 10px; text-align: center;
}
.chunk-dots {
  display: flex; gap: 6px; justify-content: center; margin-top: 10px; flex-wrap: wrap;
}
.chunk-dot {
  width: 28px; height: 28px; border-radius: 50%;
  border: 2px solid var(--border); background: var(--bg);
  font-size: 11px; font-weight: 500; color: var(--text-soft);
  display: flex; align-items: center; justify-content: center;
  transition: all .3s;
}
.chunk-dot.done  { background: var(--green); border-color: var(--green); color: #fff; }
.chunk-dot.active{ background: var(--accent); border-color: var(--accent); color: #fff; animation: pulse .8s infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.15); } }

/* ── Messages ── */
.msg-box {
  margin-top: 16px; padding: 12px 16px; border-radius: var(--r); font-size: 14px;
}
.error-box   { background: var(--red-bg);   border: 1px solid var(--red-bd);   color: var(--red); }
.success-box { background: var(--green-bg); border: 1px solid var(--green-bd); color: var(--green); }
.success-box a { color: var(--green); font-weight: 600; text-decoration: underline; }
.chunk-note { font-size: 12.5px; color: var(--text-soft); margin-left: 6px; }

/* ── Misc ── */
.hint { font-size: 12.5px; color: var(--text-soft); margin-top: 8px; min-height: 16px; }
.hidden { display: none !important; }

/* ── Footer ── */
.footer {
  text-align: center; font-size: 12px; color: var(--text-soft);
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border);
  letter-spacing: .2px;
}