:root {
  /* TelevisaUnivision brand */
  --tu-red: #f52d1f;
  --tu-orange: #ff5900;
  --tu-pink: #ca2173;
  --tu-yellow: #ffc80a;
  --tu-black: #000000;
  --tu-white: #ffffff;

  /* Caption Group palette */
  --cg-orange: #fc4c1e;
  --cg-slate: #3a3e46;
  --cg-text: #333333;
  --cg-muted: #6b7280;
  --cg-border: rgba(58, 62, 70, 0.14);
  --cg-bg: #f7f7f7;
  --cg-surface: #ffffff;

  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(58, 62, 70, 0.08);
  --shadow-md: 0 8px 32px rgba(58, 62, 70, 0.1);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.12);
  --font: "Rubik", "Segoe UI", system-ui, sans-serif;
  --brand-gradient: linear-gradient(90deg, var(--tu-red) 0%, var(--tu-orange) 50%, var(--tu-pink) 100%);
  --brand-gradient-soft: linear-gradient(135deg, var(--tu-red), var(--tu-orange));
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--cg-bg);
  color: var(--cg-text);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ── Brand bar (TU corporate) ── */
.brand-bar {
  height: 4px;
  background: var(--brand-gradient);
  flex-shrink: 0;
}

/* ── Login ── */
.login-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--cg-bg);
}

.login-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

.login-card {
  width: min(440px, 100%);
  background: var(--cg-surface);
  border: 1px solid var(--cg-border);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.25rem 2.25rem;
  box-shadow: var(--shadow-md);
}

.brand-lockup {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--cg-border);
}

.logo-duo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

.logo-duo--header {
  justify-content: flex-start;
  margin-bottom: 0;
}

.logo-duo__tu {
  height: 44px;
  width: auto;
}

.logo-duo__cg {
  height: 40px;
  width: auto;
}

.logo-duo--login .logo-duo__tu {
  height: 48px;
}

.logo-duo--login .logo-duo__cg {
  height: 44px;
}

.logo-duo__sep {
  width: 1px;
  height: 40px;
  background: var(--cg-border);
  flex-shrink: 0;
}

.logo-duo__sep--light {
  background: rgba(255, 255, 255, 0.25);
}

.brand-logo {
  max-width: 240px;
  height: auto;
  margin: 0 auto 1.25rem;
  display: block;
}

.brand-logo--dark {
  filter: none;
}

.brand-logo-fallback {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--tu-black);
  margin-bottom: 0.5rem;
}

.app-eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tu-red);
  margin-bottom: 0.5rem;
}

.app-subtitle {
  font-size: 0.95rem;
  color: var(--cg-slate);
  margin: 0.35rem 0 0;
  line-height: 1.5;
  font-weight: 500;
}

.field {
  margin-bottom: 1.1rem;
}

.field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cg-slate);
  margin-bottom: 0.45rem;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--cg-surface);
  border: 1px solid var(--cg-border);
  border-radius: 8px;
  color: var(--cg-text);
  font: inherit;
  padding: 0.78rem 0.95rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--tu-red);
  box-shadow: 0 0 0 3px rgba(245, 45, 31, 0.12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.12s, opacity 0.12s, box-shadow 0.12s, background 0.15s;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  width: 100%;
  padding: 0.9rem 1.25rem;
  background: var(--tu-red);
  color: var(--tu-white);
  box-shadow: 0 4px 16px rgba(245, 45, 31, 0.28);
}

.btn-primary:hover {
  background: #e0281b;
  box-shadow: 0 6px 20px rgba(245, 45, 31, 0.35);
}

.btn-secondary {
  padding: 0.55rem 1rem;
  background: transparent;
  border: 1px solid var(--cg-border);
  color: var(--cg-slate);
  font-size: 0.85rem;
}

.btn-secondary:hover {
  border-color: var(--cg-slate);
  color: var(--tu-black);
  background: rgba(58, 62, 70, 0.04);
}

.btn-accent {
  padding: 0.78rem 1.5rem;
  background: var(--brand-gradient-soft);
  color: var(--tu-white);
  box-shadow: 0 4px 16px rgba(245, 45, 31, 0.25);
}

.btn-accent:hover {
  box-shadow: 0 6px 22px rgba(245, 45, 31, 0.32);
}

.btn-accent:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.msg {
  margin-top: 1rem;
  font-size: 0.88rem;
  text-align: center;
}

.msg.error { color: #d42418; }

/* ── TU corporate footer ── */
.tu-footer {
  background: var(--tu-black);
  color: rgba(255, 255, 255, 0.72);
  padding: 2.5rem 1.5rem 1.75rem;
  margin-top: auto;
}

.tu-footer__inner {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.tu-footer__brand img {
  height: 56px;
  width: auto;
  display: block;
  margin-bottom: 0.85rem;
}

.tu-footer__brand p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
}

.tu-footer__bar {
  max-width: 1170px;
  margin: 1.75rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.45);
}

.tu-footer__bar a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}

.tu-footer__bar a:hover {
  color: var(--tu-white);
}

.login-footer {
  display: none;
}

/* ── App shell ── */
.app-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--cg-bg);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  background: var(--tu-black);
  color: var(--tu-white);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.header-text p {
  margin: 0;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.01em;
  max-width: 220px;
  line-height: 1.35;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-user-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
}

.manual-link {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.15s;
}

.manual-link:hover {
  color: var(--tu-white);
  text-decoration: underline;
}

.user-pill {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.85);
  padding: 0.35rem 0.85rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.app-header .btn-secondary {
  border-color: rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.85);
}

.app-header .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--tu-white);
}

.app-main {
  flex: 1;
  max-width: 920px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.25rem 2.5rem;
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.pill {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  background: var(--cg-surface);
  color: var(--cg-muted);
  border: 1px solid var(--cg-border);
}

.pill.ok {
  background: rgba(0, 160, 90, 0.08);
  border-color: rgba(0, 160, 90, 0.25);
  color: #00875a;
}

.pill.warn {
  background: rgba(252, 76, 30, 0.08);
  border-color: rgba(252, 76, 30, 0.25);
  color: var(--cg-orange);
}

.workspace {
  background: var(--cg-surface);
  border: 1px solid var(--cg-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tu-red);
  margin: 0 0 1rem;
}

.textarea-wrap {
  position: relative;
}

textarea.script-input {
  min-height: 130px;
  resize: vertical;
  line-height: 1.6;
  font-size: 1.02rem;
}

.char-count {
  display: flex;
  justify-content: space-between;
  margin-top: 0.45rem;
  font-size: 0.76rem;
  color: var(--cg-muted);
}

.char-count .limit-warn { color: var(--cg-orange); }

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.control label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--cg-slate);
  margin-bottom: 0.5rem;
}

.control output {
  color: var(--tu-red);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--tu-red);
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.control-hint {
  font-size: 0.74rem;
  color: var(--cg-muted);
  margin: -0.25rem 0 0.75rem;
  line-height: 1.45;
}

.editor-panel {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--cg-border);
}

.editor-panel.hidden {
  display: none;
}

.waveform-box {
  background: var(--cg-bg);
  border: 1px solid var(--cg-border);
  border-radius: 10px;
  padding: 1rem;
  min-height: 120px;
}

#waveform {
  width: 100%;
  min-height: 96px;
  border-radius: 8px;
  overflow: hidden;
}

.waveform-empty {
  text-align: center;
  color: var(--cg-muted);
  font-size: 0.85rem;
  padding: 2rem 1rem;
}

.waveform-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.time-label {
  font-size: 0.78rem;
  color: var(--cg-muted);
  font-variant-numeric: tabular-nums;
  margin-left: auto;
}

.btn-icon {
  padding: 0.5rem 0.85rem;
  background: var(--cg-surface);
  border: 1px solid var(--cg-border);
  border-radius: 8px;
  color: var(--cg-slate);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
}

.btn-icon:hover {
  border-color: var(--tu-red);
  color: var(--tu-red);
}

.btn-icon:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.post-controls {
  margin-top: 1.25rem;
}

.post-controls .controls-grid {
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.voice-row {
  margin-bottom: 0.35rem;
}

.voice-btn {
  min-width: 7.5rem;
}

.preset-btn {
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  border: 1px solid var(--cg-border);
  background: var(--cg-surface);
  color: var(--cg-slate);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.preset-btn:hover {
  border-color: var(--tu-red);
  color: var(--tu-red);
}

.preset-btn.active {
  background: rgba(245, 45, 31, 0.08);
  border-color: var(--tu-red);
  color: var(--tu-red);
}

.tone-control {
  margin-bottom: 1.25rem;
}

.tone-control label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--cg-slate);
  margin-bottom: 0.5rem;
}

.tone-control output {
  color: var(--tu-red);
  font-weight: 500;
}

.tone-track {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tone-end {
  font-size: 0.72rem;
  color: var(--cg-muted);
  white-space: nowrap;
}

.tone-track input[type="range"] {
  flex: 1;
}

.advanced-controls {
  margin-bottom: 1rem;
  border: 1px solid var(--cg-border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  background: var(--cg-bg);
}

.advanced-controls summary {
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--cg-slate);
  user-select: none;
}

.advanced-controls[open] summary {
  margin-bottom: 1rem;
  color: var(--tu-red);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--cg-slate);
  margin-top: 0.5rem;
  cursor: pointer;
}

.checkbox-row input {
  accent-color: var(--tu-red);
  width: 1rem;
  height: 1rem;
}

#status {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--cg-slate);
}

#status.error { color: #d42418; }
#status.success { color: #00875a; }

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.25rem;
  background: var(--cg-surface);
  border: 1px solid var(--cg-border);
  border-radius: 8px;
  color: var(--cg-slate);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}

.download-link:hover {
  border-color: var(--tu-red);
  color: var(--tu-red);
}

@media (max-width: 720px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .header-brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .header-text p {
    max-width: none;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
    align-items: flex-end;
  }

  .header-user-block {
    align-items: flex-start;
  }
}