@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500&display=swap');

:root {
  --tts-bg:       #0d0f1a;
  --tts-surface:  #161929;
  --tts-surface2: #1e2236;
  --tts-border:   rgba(255,255,255,0.08);
  --tts-accent:   #6c63ff;
  --tts-glow:     rgba(108,99,255,0.3);
  --tts-green:    #22d3a5;
  --tts-red:      #ff5e6c;
  --tts-text:     #e8eaf0;
  --tts-muted:    #7b80a0;
  --tts-radius:   14px;
  --tts-fh:       'Syne', sans-serif;
  --tts-fb:       'DM Sans', sans-serif;
}

.tts-wrapper {
  font-family: var(--tts-fb);
  background: var(--tts-bg);
  color: var(--tts-text);
  border-radius: 20px;
  padding: 40px 44px;
  max-width: 900px;
  margin: 40px auto;
  box-shadow: 0 30px 80px rgba(0,0,0,0.65), 0 0 0 1px var(--tts-border);
  position: relative;
  overflow: hidden;
}
.tts-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 0%,  rgba(108,99,255,0.13) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 100%, rgba(34,211,165,0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Header ── */
.tts-header { text-align: center; margin-bottom: 28px; }
.tts-title {
  font-family: var(--tts-fh);
  font-size: 1.9rem; font-weight: 800; margin: 0 0 8px;
  background: linear-gradient(135deg, #fff 30%, var(--tts-accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.tts-subtitle { color: var(--tts-muted); font-size: 0.92rem; margin: 0 0 12px; }
.tts-limit-badge {
  display: inline-block; background: var(--tts-surface2);
  border: 1px solid var(--tts-border); border-radius: 50px;
  padding: 6px 18px; font-size: 0.82rem; color: var(--tts-muted);
}
.tts-limit-badge.premium { border-color: rgba(34,211,165,0.4); color: var(--tts-green); }
.tts-upgrade-link { color: var(--tts-accent); text-decoration: none; font-weight: 600; }
.tts-upgrade-link:hover { text-decoration: underline; }

/* ── Tabs ── */
.tts-tabs {
  display: flex; gap: 4px;
  background: var(--tts-surface2);
  border: 1px solid var(--tts-border);
  border-radius: 12px; padding: 5px;
  margin-bottom: 20px; width: fit-content;
}
.tts-tab {
  padding: 9px 22px; border: none; border-radius: 9px; cursor: pointer;
  font-family: var(--tts-fh); font-size: 0.88rem; font-weight: 600;
  background: transparent; color: var(--tts-muted);
  transition: background 0.2s, color 0.2s;
}
.tts-tab.active {
  background: var(--tts-accent); color: #fff;
  box-shadow: 0 4px 16px var(--tts-glow);
}
.tts-tab:hover:not(.active) { color: var(--tts-text); }

/* ── Tab Panels ── */
.tts-tab-panel { display: none; margin-bottom: 20px; }
.tts-tab-panel.active { display: block; }

.tts-voice-select {
  width: 100%; background: var(--tts-surface2);
  border: 1px solid var(--tts-border); border-radius: 10px;
  color: var(--tts-text); padding: 11px 16px;
  font-family: var(--tts-fb); font-size: 0.9rem; outline: none; cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath stroke='%237b80a0' stroke-width='1.5' fill='none' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.tts-voice-select:focus { border-color: var(--tts-accent); box-shadow: 0 0 0 3px var(--tts-glow); }

.tts-ai-note {
  margin: 8px 0 0; font-size: 0.8rem; color: var(--tts-muted);
}

/* ── Textarea ── */
.tts-textarea-wrap { margin-bottom: 16px; }
#tts-text {
  width: 100%; min-height: 150px;
  background: var(--tts-surface2); border: 1px solid var(--tts-border);
  border-radius: 12px; color: var(--tts-text);
  font-family: var(--tts-fb); font-size: 0.93rem; line-height: 1.65;
  padding: 16px 18px; resize: vertical; outline: none; box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#tts-text::placeholder { color: var(--tts-muted); }
#tts-text:focus { border-color: var(--tts-accent); box-shadow: 0 0 0 3px var(--tts-glow); }
.tts-char-info {
  display: flex; justify-content: flex-end; gap: 12px;
  font-size: 0.78rem; color: var(--tts-muted); margin-top: 6px;
}
#tts-char-count { color: var(--tts-text); font-weight: 600; }
.tts-daily { font-size: 0.75rem; }

/* ── Features Box ── */
.tts-features-box {
  background: var(--tts-surface2); border: 1px solid var(--tts-border);
  border-radius: 14px; padding: 22px 24px; margin-bottom: 22px;
}
.tts-features-title {
  font-family: var(--tts-fh); font-size: 0.85rem; font-weight: 700;
  color: var(--tts-muted); text-transform: uppercase; letter-spacing: 0.05em;
  margin: 0 0 18px;
}
.tts-features-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
@media (max-width: 640px) {
  .tts-features-grid { grid-template-columns: 1fr; }
  .tts-wrapper { padding: 24px 18px; }
}

.tts-feature-item {
  background: var(--tts-bg); border: 1px solid var(--tts-border);
  border-radius: 10px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.tts-feature-item strong {
  font-family: var(--tts-fh); font-size: 0.85rem; color: var(--tts-text);
}
.tts-feature-item code {
  background: rgba(108,99,255,0.1); border: 1px solid rgba(108,99,255,0.2);
  border-radius: 6px; padding: 6px 10px;
  font-size: 0.75rem; color: #a99fff; line-height: 1.5; display: block;
  font-family: 'Courier New', monospace; word-break: break-all;
}
.tts-feature-conversation { grid-column: 1 / -1; }
.tts-conv-desc { font-size: 0.8rem; color: var(--tts-muted); margin: 0; }
.tts-conv-note { font-size: 0.75rem; color: var(--tts-muted); margin: 0; font-style: italic; }

.tts-insert-row { display: flex; gap: 8px; }
.tts-insert-btn {
  background: var(--tts-surface2); border: 1px solid var(--tts-border);
  border-radius: 6px; color: var(--tts-muted); font-size: 0.75rem;
  padding: 5px 12px; cursor: pointer; font-family: var(--tts-fb);
  transition: border-color 0.2s, color 0.2s; width: fit-content;
}
.tts-insert-btn:hover { border-color: var(--tts-accent); color: var(--tts-text); }
.tts-conv-insert { background: rgba(108,99,255,0.15); border-color: rgba(108,99,255,0.3); color: #a99fff; }

/* ── Generate Button ── */
.tts-btn-primary {
  width: 100%; padding: 15px;
  background: linear-gradient(135deg, var(--tts-accent), #8b7fff);
  border: none; border-radius: 12px; color: #fff;
  font-family: var(--tts-fh); font-size: 1rem; font-weight: 700; letter-spacing: 0.02em;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 8px 24px var(--tts-glow); position: relative; overflow: hidden;
}
.tts-btn-primary::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(rgba(255,255,255,0.1), transparent);
}
.tts-btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 12px 32px var(--tts-glow); }
.tts-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.tts-speaker-hint { text-align: center; font-size: 0.8rem; color: var(--tts-muted); margin: 10px 0 0; }

/* ── Error ── */
.tts-error {
  background: rgba(255,94,108,0.1); border: 1px solid rgba(255,94,108,0.3);
  border-radius: 10px; color: #ff8a94; padding: 13px 18px; margin-top: 16px; font-size: 0.88rem;
}

/* ── Result ── */
.tts-result {
  margin-top: 22px; background: var(--tts-surface2);
  border: 1px solid rgba(34,211,165,0.2); border-radius: 14px;
  padding: 22px; display: flex; flex-direction: column; gap: 14px;
  animation: tts-fadein 0.35s ease;
}
@keyframes tts-fadein { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
#tts-audio { width: 100%; border-radius: 8px; }
.tts-btn-download {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--tts-green); color: #0b1a12;
  font-family: var(--tts-fh); font-weight: 700; font-size: 0.88rem;
  padding: 11px 22px; border-radius: 10px; text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s; width: fit-content;
  box-shadow: 0 5px 18px rgba(34,211,165,0.3);
}
.tts-btn-download:hover { transform: translateY(-2px); box-shadow: 0 9px 26px rgba(34,211,165,0.4); color: #0b1a12; }