/* ═══════════════════════════════════════════════════════════
   NEBULA v2 — style.css
   Colors: Malachite #31EC56, Razzmatazz #EF036C, Heliotrope #EE72F8
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --void: #0A0A0F;
  --surface: #111118;
  --card: #161620;
  --card-hover: #1C1C2A;
  --card-border: #2A2A3E;
  --card-border-hover: #3D3D5C;
  --muted: #252538;

  --green: #31EC56;
  --green-glow: rgba(49, 236, 86, 0.25);
  --green-dim: rgba(49, 236, 86, 0.1);

  --pink: #EF036C;
  --pink-glow: rgba(239, 3, 108, 0.25);
  --pink-dim: rgba(239, 3, 108, 0.1);

  --purple: #EE72F8;
  --purple-glow: rgba(238, 114, 248, 0.25);
  --purple-dim: rgba(238, 114, 248, 0.1);

  --gradient: linear-gradient(135deg, var(--green) 0%, var(--pink) 50%, var(--purple) 100%);
  --gradient-soft: linear-gradient(135deg, rgba(49,236,86,0.15) 0%, rgba(239,3,108,0.15) 50%, rgba(238,114,248,0.15) 100%);
  --gradient-text: linear-gradient(135deg, var(--green) 0%, var(--pink) 50%, var(--purple) 100%);

  --text-primary: #F0F0F5;
  --text-secondary: #A0A0B8;
  --text-dim: #606078;
  --text-muted: #404058;

  --danger: #FF4D6D;
  --danger-bg: rgba(255, 77, 109, 0.1);
  --success: #31EC56;
  --success-bg: rgba(49, 236, 86, 0.1);

  --radius: 18px;
  --radius-sm: 10px;
  --radius-xs: 6px;

  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

html {
  background: var(--void);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  min-height: 100%;
  background: var(--void);
  position: relative;
  overflow-x: hidden;
}

/* ─── Nebula Canvas Background ─────────────────────────── */
#nebulaCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ─── App Wrapper ──────────────────────────────────────── */
.app-wrapper {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding:
    calc(var(--safe-top) + 40px)
    calc(var(--safe-right) + 20px)
    calc(var(--safe-bottom) + 60px)
    calc(var(--safe-left) + 20px);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ─── Header ─────────────────────────────────────────────── */
.site-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding-top: 8px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  flex-shrink: 0;
  animation: logoFloat 3s ease-in-out infinite;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: .15em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  user-select: none;
}

.logo-sub {
  font-size: .85rem;
  color: var(--text-dim);
  letter-spacing: .06em;
  font-weight: 400;
}

/* ─── Clipboard Banner ─────────────────────────────────── */
.clipboard-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: .85rem;
  color: var(--text-secondary);
  animation: slideDown .3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.cb-glow {
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  opacity: 0.3;
  pointer-events: none;
}

.cb-icon { 
  color: var(--green); 
  flex-shrink: 0; 
  display: flex;
  position: relative;
  z-index: 1;
}

.cb-text { 
  flex: 1; 
  position: relative;
  z-index: 1;
}

.cb-paste {
  background: var(--gradient);
  color: var(--void);
  border: none;
  border-radius: var(--radius-xs);
  padding: 7px 16px;
  font-size: .78rem;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  letter-spacing: .04em;
  transition: transform .15s, box-shadow .15s;
  white-space: nowrap;
  position: relative;
  z-index: 1;
}

.cb-paste:hover { 
  transform: translateY(-1px); 
  box-shadow: 0 4px 15px var(--green-glow); 
}

.cb-dismiss {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  padding: 5px;
  border-radius: 50%;
  transition: color .15s, background .15s;
  position: relative;
  z-index: 1;
}

.cb-dismiss:hover { 
  color: var(--text-secondary); 
  background: var(--muted); 
}

/* ─── Main Stage ───────────────────────────────────────── */
.main-stage {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ─── Input Card ───────────────────────────────────────── */
.input-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}

.input-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity .3s;
}

.input-card:focus-within::before {
  opacity: 1;
}

.input-card:focus-within {
  border-color: var(--card-border-hover);
  box-shadow: 0 0 40px rgba(49, 236, 86, 0.05), 0 0 40px rgba(239, 3, 108, 0.05);
}

/* ─── Input Wrap ───────────────────────────────────────── */
.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  transition: border-color .2s, box-shadow .2s;
  overflow: hidden;
}

.input-wrap:focus-within {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.input-wrap.valid {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.input-wrap.valid .input-icon { 
  color: var(--green); 
}

.input-icon {
  position: absolute;
  left: 16px;
  color: var(--text-dim);
  pointer-events: none;
  flex-shrink: 0;
  transition: color .2s;
}

.input-wrap:focus-within .input-icon { 
  color: var(--green); 
}

.url-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: .95rem;
  padding: 18px 52px 18px 50px;
  caret-color: var(--green);
  -webkit-appearance: none;
  min-height: 58px;
}

.url-input::placeholder { 
  color: var(--text-dim); 
}

.clear-btn {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px;
  border-radius: 50%;
  transition: color .15s, background .15s;
  min-width: 30px;
  min-height: 30px;
}

.clear-btn:hover { 
  color: var(--text-secondary); 
  background: var(--muted); 
}

/* ─── Format Selector ──────────────────────────────────── */
.format-selector {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.format-tabs {
  display: flex;
  gap: 8px;
}

.format-tab {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
}

.format-tab:hover {
  border-color: var(--card-border-hover);
  color: var(--text-secondary);
}

.format-tab.active {
  background: var(--gradient-soft);
  border-color: var(--pink);
  color: var(--text-primary);
  box-shadow: 0 0 20px var(--pink-glow);
}

.format-tab.active .tab-icon {
  filter: drop-shadow(0 0 4px var(--pink-glow));
}

.tab-icon { 
  font-size: 1.1rem; 
}

.tab-label { 
  letter-spacing: .05em; 
}

/* ─── Quality Grid ───────────────────────────────────────── */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  animation: fadeIn .2s ease;
}

.quality-grid.hidden { 
  display: none; 
}

.quality-chip {
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xs);
  padding: 10px 8px;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: .03em;
}

.quality-chip:hover {
  border-color: var(--card-border-hover);
  color: var(--text-secondary);
  background: var(--card-hover);
}

.quality-chip.active {
  background: var(--gradient-soft);
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 15px var(--green-glow);
}

/* ─── Download Button ──────────────────────────────────── */
.download-btn {
  background: var(--gradient);
  border: none;
  color: var(--void);
  border-radius: var(--radius-sm);
  padding: 18px;
  font-family: var(--font-display);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .12em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 58px;
  transition: transform .15s, box-shadow .3s;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  overflow: hidden;
}

.btn-glow {
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}

.download-btn:hover .btn-glow {
  opacity: 1;
}

.download-btn:hover,
.download-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--green-glow), 0 8px 30px var(--pink-glow);
  outline: none;
}

.download-btn:active { 
  transform: translateY(0) scale(.98); 
}

.download-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

.btn-text { 
  position: relative; 
  z-index: 1; 
}

.btn-spinner { 
  display: flex; 
  position: relative; 
  z-index: 1; 
}

.spin {
  animation: spin 1s linear infinite;
}

/* ─── Process Card ─────────────────────────────────────── */
.process-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 20px;
  position: relative;
  animation: expandCard .3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.process-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  animation: shimmerBar 2s linear infinite;
  background-size: 200% 100%;
}

.process-visual {
  flex-shrink: 0;
  position: relative;
  width: 100px;
  height: 70px;
}

.process-thumb-wrap {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  background: var(--muted);
  z-index: 1;
}

.process-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .3s;
}

.process-thumb.loaded { 
  opacity: 1; 
}

.process-thumb-skeleton {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--muted) 25%, #353550 50%, var(--muted) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}

.process-thumb-skeleton.hidden { 
  display: none; 
}

.process-thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.pulse-ring {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--green);
  animation: pulseRing 1.5s ease-out infinite;
}

.process-orbital {
  position: absolute;
  inset: -10px;
  pointer-events: none;
}

.orbital-ring {
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  border-radius: 50%;
  animation: orbit 3s linear infinite;
}

.orbital-ring:nth-child(1) {
  border-top-color: var(--green);
  animation-duration: 3s;
}

.orbital-ring:nth-child(2) {
  border-right-color: var(--pink);
  animation-duration: 4s;
  animation-direction: reverse;
  inset: 5px;
}

.orbital-ring:nth-child(3) {
  border-bottom-color: var(--purple);
  animation-duration: 5s;
  inset: 10px;
}

.process-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.process-title {
  font-family: var(--font-display);
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.process-meta {
  font-size: .78rem;
  color: var(--text-dim);
}

.process-stages {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stage {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .76rem;
  color: var(--text-dim);
  transition: color .3s;
}

.stage.active { 
  color: var(--text-secondary); 
}

.stage.done { 
  color: var(--green); 
}

.stage-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  transition: background .3s, box-shadow .3s;
}

.stage.active .stage-dot {
  background: var(--green);
  box-shadow: 0 0 8px 2px var(--green-glow);
  animation: dotPulse 1.2s ease-in-out infinite;
}

.stage.done .stage-dot {
  background: var(--green);
  box-shadow: none;
}

.progress-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}

.progress-bar-track {
  flex: 1;
  height: 4px;
  background: var(--muted);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: var(--gradient);
  border-radius: 4px;
  width: 0%;
  transition: width .4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.progress-bar-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 100%;
  background: var(--green);
  filter: blur(8px);
  opacity: 0.6;
  transition: left .4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.progress-percent {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 600;
  color: var(--green);
  min-width: 32px;
  text-align: right;
}

.process-cancel {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  padding: 7px;
  border-radius: 50%;
  transition: color .15s, background .15s;
}

.process-cancel:hover { 
  color: var(--danger); 
  background: var(--danger-bg); 
}

/* ─── Result Card ──────────────────────────────────────── */
.result-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  animation: expandCard .3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.result-visual {
  position: relative;
}

.result-thumb-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--muted);
  cursor: pointer;
}

.result-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .3s;
}

.result-thumb-wrap:hover .result-thumb {
  transform: scale(1.03);
}

.result-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  font-size: .75rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--card-border);
}

.result-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--void);
  opacity: 0;
  transition: opacity .3s, transform .3s;
  pointer-events: none;
}

.result-thumb-wrap:hover .result-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.result-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.result-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.result-channel {
  font-size: .85rem;
  color: var(--text-secondary);
}

.result-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.badge {
  font-size: .72rem;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 4px 10px;
  letter-spacing: .04em;
  font-family: var(--font-display);
  font-weight: 500;
}

.badge.quality {
  color: var(--green);
  border-color: rgba(49, 236, 86, 0.3);
  background: var(--green-dim);
}

.badge.format {
  color: var(--pink);
  border-color: rgba(239, 3, 108, 0.3);
  background: var(--pink-dim);
}

/* ─── Result Actions ───────────────────────────────────── */
.result-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.action-btn {
  background: var(--surface);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 14px 10px;
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .08em;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
  min-height: 50px;
  text-decoration: none;
}

.action-btn:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-1px);
}

.action-btn:active { 
  transform: translateY(0) scale(.97); 
}

.action-btn.primary {
  background: var(--gradient);
  border: none;
  color: var(--void);
  grid-column: span 2;
  font-weight: 700;
}

.action-btn.primary:hover {
  box-shadow: 0 6px 25px var(--green-glow), 0 6px 25px var(--pink-glow);
  transform: translateY(-2px);
}

.action-btn svg { 
  flex-shrink: 0; 
}

.result-alt-formats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--card-border);
}

.alt-label {
  font-size: .72rem;
  color: var(--text-dim);
  font-family: var(--font-display);
  letter-spacing: .05em;
}

.alt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.alt-chip {
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .72rem;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
}

.alt-chip:hover {
  border-color: var(--purple);
  color: var(--purple);
  background: var(--purple-dim);
  box-shadow: 0 0 15px var(--purple-glow);
}

.result-new {
  background: none;
  border: 1px dashed var(--card-border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: .82rem;
  font-family: var(--font-display);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all .2s;
  min-height: 48px;
  letter-spacing: .05em;
}

.result-new:hover {
  color: var(--text-secondary);
  border-color: var(--green);
  background: var(--green-dim);
}

/* ─── Error Card ───────────────────────────────────────── */
.error-card {
  background: var(--danger-bg);
  border: 1px solid rgba(255, 77, 109, 0.3);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: var(--danger);
  animation: expandCard .2s ease;
}

.error-icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.error-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.error-text {
  font-size: .88rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.error-retry {
  background: none;
  border: 1px solid rgba(255, 77, 109, 0.4);
  color: var(--danger);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: .78rem;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all .15s;
  align-self: flex-start;
  letter-spacing: .05em;
}

.error-retry:hover {
  background: rgba(255, 77, 109, 0.15);
  border-color: var(--danger);
}

/* ─── Features Strip ───────────────────────────────────── */
.features-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.feature-item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  transition: border-color .2s, transform .2s;
}

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

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(var(--feature-color), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--feature-color);
  box-shadow: 0 0 20px rgba(var(--feature-color), 0.15);
}

.feature-label {
  font-size: .75rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: .04em;
}

/* ─── History Section ──────────────────────────────────── */
.history-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.section-count {
  background: var(--muted);
  color: var(--text-secondary);
  border-radius: 10px;
  font-size: .72rem;
  padding: 2px 8px;
  font-family: var(--font-display);
  font-weight: 600;
}

.history-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.ghost-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
  transition: color .15s, background .15s;
  min-width: 36px;
  min-height: 36px;
}

.ghost-btn:hover { 
  color: var(--text-secondary); 
  background: var(--muted); 
}

.ghost-btn.danger:hover { 
  color: var(--danger); 
  background: var(--danger-bg); 
}

.ghost-btn.small { 
  min-width: unset; 
  min-height: unset; 
  padding: 5px 10px; 
  font-size: .72rem; 
  font-family: var(--font-display); 
  font-weight: 500; 
}

.search-bar-wrap {
  animation: slideDown .2s ease;
}

.search-input {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: .88rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
}

.search-input:focus { 
  border-color: var(--green); 
  box-shadow: 0 0 0 3px var(--green-glow); 
}

.search-input::placeholder { 
  color: var(--text-dim); 
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: slideIn .25s ease both;
  transition: border-color .2s, transform .2s;
  cursor: pointer;
}

.history-item:hover {
  border-color: var(--card-border-hover);
  transform: translateX(4px);
}

.history-thumb {
  width: 64px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--muted);
  transition: transform .2s;
}

.history-item:hover .history-thumb {
  transform: scale(1.05);
}

.history-info { 
  flex: 1; 
  min-width: 0; 
}

.history-title {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  font-family: var(--font-display);
}

.history-meta {
  font-size: .72rem;
  color: var(--text-dim);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.history-meta span + span::before {
  content: '·';
  margin-right: 10px;
  opacity: .5;
}

.history-format {
  color: var(--green);
  font-weight: 600;
}

.history-del {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  padding: 7px;
  border-radius: 6px;
  flex-shrink: 0;
  transition: color .15s, background .15s;
  opacity: 0;
}

.history-item:hover .history-del { 
  opacity: 1; 
}

.history-del:hover { 
  color: var(--danger); 
  background: var(--danger-bg); 
}

/* ─── Empty State ──────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 40px 0 24px;
  animation: fadeIn .3s ease;
}

.empty-illustration {
  animation: logoFloat 4s ease-in-out infinite;
}

.empty-text {
  font-size: .9rem;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: .05em;
}

.empty-sub {
  font-size: .78rem;
  color: var(--text-muted);
}

/* ─── Storage Indicator ────────────────────────────────── */
.storage-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .75rem;
  color: var(--text-dim);
  padding: 10px 0 0;
}

.storage-indicator svg { 
  flex-shrink: 0; 
}

#storageText { 
  flex: 1; 
}

/* ─── Animations ───────────────────────────────────────── */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-15px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes expandCard {
  from { opacity: 0; transform: scale(0.97) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .3; transform: scale(.6); }
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes pulseRing {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

@keyframes orbit {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes shimmerBar {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Reduced Motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  #nebulaCanvas { 
    display: none; 
  }
}

/* ─── Tablet ─────────────────────────────────────────── */
@media (min-width: 600px) {
  .app-wrapper {
    padding-top: calc(var(--safe-top) + 52px);
    gap: 40px;
  }

  .input-card { 
    padding: 32px; 
  }

  .process-card,
  .result-card { 
    padding: 28px; 
  }

  .process-visual { 
    width: 130px; 
    height: 88px; 
  }

  .result-thumb-wrap { 
    max-height: 260px; 
  }

  .quality-grid { 
    grid-template-columns: repeat(4, 1fr); 
  }

  .result-actions {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .action-btn.primary { 
    grid-column: span 1; 
  }

  .history-thumb { 
    width: 80px; 
    height: 56px; 
  }
}

/* ─── Large Tablet ───────────────────────────────────── */
@media (min-width: 820px) {
  .app-wrapper {
    max-width: 760px;
    padding-top: calc(var(--safe-top) + 64px);
  }

  .logo-text { 
    font-size: 1.8rem; 
    letter-spacing: .2em; 
  }
  .logo-sub { 
    font-size: .9rem; 
  }

  .url-input { 
    font-size: 1rem; 
    padding: 20px 56px 20px 54px; 
    min-height: 64px; 
  }
  .download-btn { 
    min-height: 64px; 
    font-size: .92rem; 
  }

  .result-actions {
    grid-template-columns: repeat(4, 1fr);
  }
  .action-btn.primary { 
    grid-column: span 2; 
  }
}

/* ─── Desktop ────────────────────────────────────────── */
@media (min-width: 1024px) {
  .app-wrapper { 
    max-width: 720px; 
  }

  .result-actions {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .action-btn.primary { 
    grid-column: span 2; 
  }
}