/* ============================================
   HDR Emoji Converter - Design System
   ============================================ */

:root {
  /* Dark palette (Default) */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(20, 20, 32, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);

  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;

  --accent-primary: #7c5cff;
  --accent-secondary: #ff6bca;
  --accent-gradient: linear-gradient(135deg, #7c5cff 0%, #ff6bca 50%, #ffb86c 100%);
  --accent-glow: rgba(124, 92, 255, 0.3);

  --success: #4ade80;
  --error: #f87171;
  --warning: #fbbf24;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(124, 92, 255, 0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(124, 92, 255, 0.15);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f5f5f7;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-glass: rgba(0, 0, 0, 0.03);
  --bg-glass-hover: rgba(0, 0, 0, 0.06);

  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted: #86868b;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 40px rgba(124, 92, 255, 0.1);
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   Background Effects
   ============================================ */

.bg-effects {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: float 20s ease-in-out infinite;
}

.bg-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.3), transparent 70%);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.bg-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 107, 202, 0.25), transparent 70%);
  bottom: -150px;
  left: -100px;
  animation-delay: -7s;
}

.bg-orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 184, 108, 0.2), transparent 70%);
  top: 40%;
  left: 50%;
  animation-delay: -14s;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.02); }
}

/* ============================================
   App Container
   ============================================ */

.app-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 60px;
  position: relative;
  z-index: 1;
}

/* ============================================
   Header
   ============================================ */

.header {
  text-align: center;
  margin-bottom: 48px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.logo-icon {
  font-size: 36px;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { filter: brightness(1); transform: scale(1); }
  50% { filter: brightness(1.4); transform: scale(1.1); }
}

.logo h1 {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 400;
  max-width: 500px;
  margin: 0 auto;
}

/* ============================================
   Upload Section
   ============================================ */

.upload-section {
  margin-bottom: 40px;
}

.upload-zone {
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: inherit;
}

.upload-zone:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.upload-zone:hover::before {
  opacity: 0.03;
}

.upload-zone.dragover {
  border-color: var(--accent-primary);
  background: rgba(124, 92, 255, 0.08);
  transform: scale(1.01);
  box-shadow: var(--shadow-glow), 0 0 60px rgba(124, 92, 255, 0.1);
}

.upload-icon {
  color: var(--text-muted);
  margin-bottom: 16px;
  transition: all var(--transition-normal);
  position: relative;
  z-index: 1;
}

.upload-zone:hover .upload-icon {
  color: var(--accent-primary);
  transform: translateY(-4px);
}

.upload-zone h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}

.upload-zone p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  position: relative;
  z-index: 1;
}

.upload-hint {
  color: var(--text-muted) !important;
  font-size: 0.8rem !important;
  margin-top: 8px;
}

/* ============================================
   Editor Section
   ============================================ */

.editor-section {
  margin-bottom: 40px;
  animation: slideUp 0.5s var(--transition-slow);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.editor-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 768px) {
  .editor-layout {
    grid-template-columns: 1fr;
  }
}

/* Preview Panel */
.preview-panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.preview-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-reset {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.82rem;
  font-family: var(--font-family);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-reset:hover {
  color: var(--accent-primary);
  background: rgba(124, 92, 255, 0.1);
}

.preview-image-wrap {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  background:
    repeating-conic-gradient(rgba(255,255,255,0.03) 0% 25%, transparent 0% 50%) 0 0 / 20px 20px;
}

.preview-image-wrap img {
  max-width: 100%;
  max-height: 360px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

/* Controls Panel */
.controls-panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.controls-panel h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.control-group {
  margin-bottom: 20px;
}

.control-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.control-label label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

.control-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: rgba(124, 92, 255, 0.1);
  padding: 2px 10px;
  border-radius: 20px;
  min-width: 42px;
  text-align: center;
}

/* Custom range input */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 10px rgba(124, 92, 255, 0.4);
  transition: all var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 16px rgba(124, 92, 255, 0.6);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 10px rgba(124, 92, 255, 0.4);
}

.control-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Preset Buttons */
.preset-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}

.btn-preset {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-family);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-preset:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-accent);
}

.btn-preset.active {
  background: rgba(124, 92, 255, 0.15);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Convert Button */
.btn-convert {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  color: white;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

.btn-convert::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.btn-convert:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 92, 255, 0.4);
}

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

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

.btn-convert:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

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

/* ============================================
   Result Section
   ============================================ */

.result-section {
  margin-bottom: 40px;
  animation: slideUp 0.5s var(--transition-slow);
}

.result-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  padding: 40px;
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.result-icon {
  font-size: 48px;
  margin-bottom: 12px;
  animation: bounce 0.6s ease;
}

@keyframes bounce {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.result-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.result-tip {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto 24px;
}

.result-preview {
  background:
    repeating-conic-gradient(rgba(255,255,255,0.03) 0% 25%, transparent 0% 50%) 0 0 / 20px 20px;
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
  display: inline-block;
  max-width: 100%;
}

.result-preview img {
  max-width: 320px;
  max-height: 320px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.result-info {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.result-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent-gradient);
  color: white;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 92, 255, 0.4);
}

.btn-another {
  padding: 14px 28px;
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-another:hover {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
}

/* ============================================
   How it Works Section
   ============================================ */

.how-section {
  margin-bottom: 48px;
}

.how-section h2 {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 32px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 24px 16px;
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.step-number {
  position: absolute;
  top: -8px;
  left: -8px;
  width: 28px;
  height: 28px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.step-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Tech Note */
.tech-note {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.tech-note h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.tech-note p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tech-note strong {
  color: var(--accent-primary);
}

/* ============================================
   API Section
   ============================================ */

.api-section {
  margin-bottom: 48px;
}

.api-section h2 {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.api-desc {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.api-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.api-endpoint {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: rgba(124, 92, 255, 0.06);
  border-bottom: 1px solid var(--border-subtle);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.method {
  background: var(--accent-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.api-endpoint code {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.api-example, .api-params {
  padding: 20px 24px;
}

.api-example {
  border-bottom: 1px solid var(--border-subtle);
}

.api-example h4, .api-params h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.api-example pre {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
}

.api-example code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--success);
  line-height: 1.8;
}

/* Table */
.api-params table {
  width: 100%;
  border-collapse: collapse;
}

.api-params th {
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.api-params td {
  font-size: 0.85rem;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.02);
  color: var(--text-secondary);
}

.api-params td code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--accent-secondary);
  background: rgba(255, 107, 202, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  text-align: center;
  padding: 24px 0;
  border-top: 1px solid var(--border-subtle);
}

.footer p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 640px) {
  .app-container {
    padding: 24px 16px 40px;
  }

  .logo h1 {
    font-size: 1.6rem;
  }

  .upload-zone {
    padding: 40px 24px;
  }

  .result-card {
    padding: 28px 20px;
  }

  .preset-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .api-endpoint {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ============================================
   Toast / Notification
   ============================================ */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 0.88rem;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: rgba(248, 113, 113, 0.3);
  color: var(--error);
}

.toast.success {
  border-color: rgba(74, 222, 128, 0.3);
  color: var(--success);
}

/* ============================================
   Switchers (Language & Theme)
   ============================================ */

.top-controls {
  position: absolute;
  top: 20px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 100;
}

@media (max-width: 480px) {
  .top-controls {
    top: 12px;
    right: 12px;
  }
}

.switcher-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.switcher-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.lang-selector {
  position: relative;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px;
  min-width: 120px;
  display: none;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: fadeIn 0.2s ease;
}

.lang-dropdown.show {
  display: flex;
}

.lang-opt {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.lang-opt:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
}

.lang-opt.active {
  color: var(--accent-primary);
  background: rgba(124, 92, 255, 0.1);
  font-weight: 600;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

[data-theme="light"] .bg-orb {
  opacity: 0.15;
}

[data-theme="light"] input[type="range"] {
  background: rgba(0, 0, 0, 0.05);
}