/* ═══════════════════════════════════════════
   MY DREAM MUSICIAN — Design System
   Dark Mode + Holographic Glassmorphism
   ═══════════════════════════════════════════ */

/* ── Tokens ────────────────────────────── */
:root {
  --bg: #0B0C10;
  --bg-subtle: #12131A;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  --accent: #00D4FF;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --accent-glow: 0 0 24px rgba(0, 212, 255, 0.25);
  --purple: #7B2FFF;
  --gradient: linear-gradient(135deg, var(--accent), var(--purple));

  --text: #E8EAED;
  --text-dim: rgba(255, 255, 255, 0.5);
  --text-muted: rgba(255, 255, 255, 0.3);

  --radius: 14px;
  --radius-sm: 8px;
  --blur: 20px;
  --transition: .25s cubic-bezier(.4, 0, .2, 1);

  --font: 'Inter', -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

/* ── Reset ─────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 30% 10%, rgba(0, 212, 255, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(123, 47, 255, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 80px;
  position: relative;
  z-index: 1;
}

/* ── Header ────────────────────────────── */
.app-header {
  padding: 28px 24px 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.logo-glyph {
  font-size: 2rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.35));
}

.logo h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tagline {
  font-size: .78rem;
  color: var(--text-dim);
  letter-spacing: .5px;
}

/* ── Phases ────────────────────────────── */
.phase {
  display: none;
}

.phase.active {
  display: block;
  animation: fadeSlide .5s ease both;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
}

/* ── Cards (glass) ─────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  padding: 22px;
  margin-bottom: 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
}

/* ── Section Titles ────────────────────── */
.section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.section-desc {
  color: var(--text-dim);
  font-size: .85rem;
  margin-bottom: 20px;
}

/* ═══ PHASE 1 COMPONENTS ═══ */

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-hover);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.dropzone.drag-over {
  border-color: var(--accent);
  box-shadow: var(--accent-glow);
}

.dropzone-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  color: var(--text-dim);
}

.dropzone-label {
  font-size: .85rem;
  color: var(--text-dim);
}

.dropzone-label .link {
  color: var(--accent);
  cursor: pointer;
}

.vision-textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font);
  font-size: .9rem;
  resize: vertical;
  transition: border-color var(--transition);
}

.vision-textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.file-preview,
.audio-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .82rem;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
}

.remove-file {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.1rem;
  cursor: pointer;
  transition: color var(--transition);
}

.remove-file:hover {
  color: #ff6b6b;
}

/* Audio Section */
.audio-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-label {
  font-size: .82rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.audio-btns {
  display: flex;
  gap: 10px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: .85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
}

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

.recording {
  color: #ff6b6b;
  font-size: .82rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rec-dot {
  width: 8px;
  height: 8px;
  background: #ff6b6b;
  border-radius: 50%;
  animation: recBlink 1s ease infinite;
}

@keyframes recBlink {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: .3
  }
}

/* Controls Grid */
.controls-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

@media (max-width: 700px) {
  .controls-grid {
    grid-template-columns: 1fr;
  }
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-group label {
  font-size: .78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .8px;
}

.control-group select {
  appearance: none;
  background: rgba(255, 255, 255, 0.03) url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2366696e' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 32px 10px 12px;
  color: var(--text);
  font-size: .88rem;
  cursor: pointer;
  transition: border-color var(--transition);
}

.control-group select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Aspect Ratio */
.ratio-options {
  display: flex;
  gap: 8px;
}

.ratio-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: .72rem;
  cursor: pointer;
  transition: all var(--transition);
}

.ratio-btn.selected {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 10px var(--accent-dim);
}

.ratio-icon {
  border: 1.5px solid currentColor;
  border-radius: 3px;
}

.r169 {
  width: 28px;
  height: 16px;
}

.r916 {
  width: 16px;
  height: 28px;
}

.r11 {
  width: 22px;
  height: 22px;
}

.r34 {
  width: 18px;
  height: 24px;
}

/* Duration */
.duration-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.duration-card label {
  font-size: .78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .8px;
}

.duration-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.dur-btn {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: .88rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  transition: all var(--transition);
}

.dur-btn.selected {
  background: var(--surface-hover);
  color: var(--text);
}

.dur-btn.accent.selected {
  background: var(--accent-dim);
  color: var(--accent);
  box-shadow: inset 0 0 20px rgba(0, 212, 255, 0.08);
}

.dur-detail {
  font-size: .7rem;
  opacity: .6;
}

/* Generate Button */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 28px;
  padding: 16px 24px;
  background: var(--gradient);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: .5;
  pointer-events: none;
}

.btn-loader {
  display: inline-flex;
  gap: 5px;
}

.btn-loader i {
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
  animation: dotBounce .6s ease infinite alternate;
}

.btn-loader i:nth-child(2) {
  animation-delay: .15s;
}

.btn-loader i:nth-child(3) {
  animation-delay: .3s;
}

@keyframes dotBounce {
  to {
    transform: translateY(-6px);
    opacity: .4;
  }
}

.btn-ghost {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  padding: 8px 16px;
  font-size: .85rem;
  cursor: pointer;
  margin-bottom: 24px;
  transition: all var(--transition);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ═══ PHASE 2 COMPONENTS ═══ */

/* Tone Card */
.tone-card {
  border-left: 3px solid var(--accent);
}

.tone-card h3 {
  font-size: .9rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.tone-text {
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--text);
}

/* DNA Card */
.dna-card h3 {
  font-size: .9rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.dna-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.tag {
  display: inline-block;
  padding: 5px 14px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: .8rem;
  color: var(--text);
}

.tag.accent {
  border-color: var(--accent);
  color: var(--accent);
}

.dna-detail {
  font-size: .85rem;
  color: var(--text-dim);
}

/* Board Section */
.board-section {
  margin-bottom: 28px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

/* Lyrics Grid */
.lyrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

@media (max-width: 700px) {
  .lyrics-grid {
    grid-template-columns: 1fr;
  }
}

.lyrics-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  padding: 18px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.lyrics-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.lyrics-card.selected {
  border-color: var(--accent);
  box-shadow: var(--accent-glow);
}

.lyrics-card .option-badge {
  position: absolute;
  top: -8px;
  right: 12px;
  background: var(--gradient);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 10px;
}

.lyrics-card h4 {
  font-size: .78rem;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.lyrics-card .verse,
.lyrics-card .chorus {
  font-size: .85rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  margin-bottom: 10px;
}

.lyrics-card .chorus {
  color: var(--accent);
  font-style: italic;
}

.lyrics-card textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-sm);
  padding: 10px;
  color: var(--text);
  font-family: var(--font);
  font-size: .85rem;
  line-height: 1.55;
  resize: vertical;
  min-height: 80px;
}

.lyrics-card textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* Camera */
.mode-switch {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.mode-btn {
  padding: 6px 16px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: .82rem;
  cursor: pointer;
  transition: all var(--transition);
}

.mode-btn.selected {
  background: var(--accent-dim);
  color: var(--accent);
}

.camera-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

@media (max-width: 700px) {
  .camera-grid {
    grid-template-columns: 1fr;
  }
}

.camera-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition);
}

.camera-card:hover {
  border-color: var(--border-hover);
}

.camera-card.selected {
  border-color: var(--accent);
  box-shadow: var(--accent-glow);
}

.camera-card .cam-en {
  font-size: .85rem;
  color: var(--text);
  margin-bottom: 6px;
}

.camera-card .cam-zh {
  font-size: .8rem;
  color: var(--text-dim);
}

/* Camera Pro */
.camera-pro {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.pro-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.pro-row label {
  width: 60px;
  font-size: .82rem;
  color: var(--text-dim);
  flex-shrink: 0;
}

.pro-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.pro-row select {
  flex: 1;
  appearance: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text);
  font-size: .85rem;
}

.range-val {
  font-size: .78rem;
  color: var(--accent);
  width: 30px;
  text-align: right;
}

/* Typography Grid */
.typo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 700px) {
  .typo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.typo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 18px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-dim);
  font-size: .78rem;
}

.typo-card:hover {
  border-color: var(--border-hover);
}

.typo-card.selected {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--accent-glow);
}

.typo-demo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.demo-highlight {
  background: linear-gradient(90deg, transparent 0%, var(--accent-dim) 50%, transparent 100%);
  color: var(--accent);
}

.demo-cyberpunk {
  text-shadow: 0 0 8px var(--accent), 0 0 16px var(--purple);
  color: #fff;
  animation: glitch 2s infinite;
}

@keyframes glitch {

  0%,
  90%,
  100% {
    transform: none
  }

  92% {
    transform: translateX(2px)
  }

  94% {
    transform: translateX(-2px)
  }
}

.demo-cinematic {
  opacity: .6;
  animation: fadeInOut 3s ease infinite;
}

@keyframes fadeInOut {

  0%,
  100% {
    opacity: .3
  }

  50% {
    opacity: 1
  }
}

.demo-hacker {
  font-family: 'Courier New', monospace;
  color: #0f0;
  letter-spacing: 3px;
  animation: typeFlicker 1.5s step-end infinite;
}

@keyframes typeFlicker {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: .7
  }
}

/* Veo Card */
.veo-card {
  border-left: 3px solid var(--purple);
}

.veo-card h3 {
  font-size: .9rem;
  color: var(--purple);
  margin-bottom: 8px;
}

.veo-text {
  font-size: .88rem;
  line-height: 1.6;
  color: var(--text-dim);
}

/* Create Button */
.btn-create {
  margin-top: 32px;
  font-size: 1.15rem;
  padding: 18px 24px;
  box-shadow: 0 4px 30px rgba(0, 212, 255, 0.2);
}

/* ═══ PHASE 3 — CLOUD FACTORY RENDERING ═══ */

.render-viewport {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 40px 20px;
}

/* Orbital Spinner */
.orbital {
  position: relative;
  width: 200px;
  height: 200px;
  margin-bottom: 48px;
}

.orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid transparent;
}

.orbit-1 {
  border-top-color: var(--accent);
  border-right-color: rgba(0, 212, 255, 0.3);
  animation: spin 3s linear infinite;
  filter: drop-shadow(0 0 6px var(--accent));
}

.orbit-2 {
  inset: 20px;
  border-bottom-color: var(--purple);
  border-left-color: rgba(123, 47, 255, 0.3);
  animation: spinReverse 4s linear infinite;
  filter: drop-shadow(0 0 6px var(--purple));
}

.orbit-3 {
  inset: 44px;
  border-top-color: var(--accent);
  border-left-color: rgba(0, 212, 255, 0.2);
  animation: spin 2.5s linear infinite;
  filter: drop-shadow(0 0 4px var(--accent));
}

.core-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  border-radius: 50%;
  animation: corePulse 2s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spinReverse {
  to {
    transform: rotate(-360deg);
  }
}

@keyframes corePulse {

  0%,
  100% {
    opacity: .6;
    transform: translate(-50%, -50%) scale(1);
  }

  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.4);
  }
}

/* Render Title */
.render-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
  animation: fadeSlide .6s ease both;
}

/* Status Text */
.render-status {
  font-size: .95rem;
  color: var(--text-dim);
  min-height: 1.4em;
  animation: statusFade .5s ease;
}

@keyframes statusFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* Progress Bar */
.render-progress {
  width: 320px;
  max-width: 90%;
  height: 4px;
  background: var(--surface-hover);
  border-radius: 4px;
  margin-top: 28px;
  overflow: hidden;
}

.render-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 4px;
  transition: width .8s ease;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

/* Task ID */
.render-task-id {
  margin-top: 20px;
  font-family: 'Courier New', monospace;
  font-size: .72rem;
  color: var(--text-muted);
  letter-spacing: .5px;
}