:root {
  --bg-base: #0A0C10;
  --bg-surface: #13161D;
  --bg-elevated: #1C2030;
  --border: #2A2F3E;
  --border-hover: #3D4459;
  --accent: #00D4A0;
  --accent-dark: #00A07A;
  --accent-muted: rgba(0, 212, 160, 0.08);
  --text-primary: #E8ECF4;
  --text-secondary: #7B8499;
  --text-muted: #4A5168;
  --text-transcript: #C8D0E4;
  --error: #FF5A6E;
  --error-muted: rgba(255, 90, 110, 0.08);
}

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

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 24px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */
header {
  text-align: center;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.logo-text {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 22px;
}

.logo-valim {
  color: #fff;
}

.logo-voice {
  color: var(--accent);
}

.tagline {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* CARD */
#card {
  background: var(--bg-surface);
  border: 0.5px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0;
}

/* UPLOAD ZONE */
#upload-zone {
  border: 1.5px dashed var(--border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

#upload-zone:hover,
#upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-muted);
}

.upload-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-elevated);
  border: 0.5px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

.upload-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.upload-subtext {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.format-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

.badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 0.5px solid var(--border);
}

/* FILE INFO */
#file-info {
  background: var(--bg-elevated);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

#file-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#file-size {
  font-size: 12px;
  color: var(--text-secondary);
}

#remove-file {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

#remove-file:hover {
  color: var(--text-primary);
}

/* PLAYER */
#player {
  background: var(--bg-elevated);
  border: 0.5px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

#play-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

#play-btn:hover {
  background: var(--accent-dark);
}

#progress-track {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

#progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s linear;
}

#time-current,
#time-total {
  font-size: 11px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  min-width: 28px;
}

/* VOLUME SLIDER */
#volume-slider {
  width: 70px;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

#volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

#volume-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

/* BOTÃO TRANSCREVER */
#transcribe-btn {
  background: var(--accent);
  color: #0A0C10;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  width: 100%;
  cursor: pointer;
  transition: background 0.2s;
}

#transcribe-btn:hover:not(:disabled) {
  background: var(--accent-dark);
}

#transcribe-btn:disabled {
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: not-allowed;
}

/* LOADING */
#loading-state {
  padding: 16px 0;
}

#progress-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 8px;
}
.step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  flex: 1;
}
.step-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: background 0.3s;
}
.step-dot.active { background: var(--accent); }
.step-dot.done { background: var(--accent); }
.step.active span { color: var(--text-primary); }
.step.done span { color: var(--accent); }
#progress-bar-wrap {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  margin-bottom: 8px;
  overflow: hidden;
}
#progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.5s ease;
}
#progress-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}

/* RESULTADO — ABAS */
#result-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  border-bottom: 0.5px solid var(--border);
  padding-bottom: 0;
}
.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  cursor: pointer;
  margin-bottom: -1px;
  transition: all 0.2s;
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.tab-btn:hover { color: var(--text-primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

#segments-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 4px;
}
.segment-item {
  background: var(--bg-base);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.segment-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  min-width: 48px;
  padding-top: 2px;
  flex-shrink: 0;
}
.segment-text {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.6;
}

#json-output {
  background: var(--bg-base);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-transcript);
  line-height: 1.7;
  overflow-x: auto;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre;
  margin-bottom: 10px;
}
#btn-copy-json {
  background: var(--bg-elevated);
  color: var(--accent);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 8px 16px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  transition: border-color 0.2s;
}
#btn-copy-json:hover { border-color: var(--accent); }

#transcript-text {
  width: 100%;
  min-height: 180px;
  background: var(--bg-base);
  color: var(--text-transcript);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.8;
  resize: vertical;
}

#transcript-text:focus {
  outline: none;
  border-color: var(--accent);
}

.result-actions,
.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

#btn-download {
  background: var(--bg-elevated);
  color: var(--accent);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: border-color 0.2s;
}

#btn-download:hover {
  border-color: var(--accent);
}

#btn-new {
  background: transparent;
  color: var(--text-primary);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

#btn-new:hover {
  background: var(--bg-elevated);
}

/* ERROR BAR */
#error-bar {
  background: var(--error-muted);
  border: 0.5px solid rgba(255, 90, 110, 0.25);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--error);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* UTILITIES */
.hidden {
  display: none !important;
}

/* FOOTER */
footer {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 24px;
}

/* ANIMATIONS */
.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* RESPONSIVIDADE MOBILE */
@media (max-width: 600px) {
  #app { padding: 16px 12px; }
  #card { padding: 20px 16px; }
  .btn-row { flex-direction: column; }
  .btn-row button { width: 100%; }
  #upload-zone { padding: 24px 16px; }
  .format-badges { gap: 4px; }
}