styles.css

/* ==========================================================================
   Photo Compress Master PRO - Global Styles & Design System
   ========================================================================== */

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(30, 41, 65, 0.85);
  --border-color: rgba(255, 255, 255, 0.12);
  --border-focus: #38bdf8;
  
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #38bdf8;
  --primary-glow: rgba(56, 189, 248, 0.35);
  
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  
  --success: #10b981;
  --success-hover: #059669;
  --success-glow: rgba(16, 185, 129, 0.35);
  
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-hover: #dc2626;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 30px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.25);
  --shadow-success-glow: 0 0 25px rgba(16, 185, 129, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
}

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.12) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  padding: 24px 16px;
}

.app-container {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hidden {
  display: none !important;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #8b5cf6 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 8px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon-wrapper {
  position: relative;
}

.logo-icon {
  font-size: 32px;
  color: var(--primary-light);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(139, 92, 246, 0.2));
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: var(--shadow-glow);
}

.pro-tag {
  position: absolute;
  top: -6px;
  right: -8px;
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(236, 72, 153, 0.5);
}

.logo h1 {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.header-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(10px);
}

.badge-privacy {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.badge-speed {
  background: rgba(56, 189, 248, 0.15);
  color: #7dd3fc;
  border: 1px solid rgba(125, 211, 252, 0.3);
}

/* --------------------------------------------------------------------------
   Control Panel & Tabs
   -------------------------------------------------------------------------- */
.control-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.tab-header {
  display: flex;
  background: rgba(10, 15, 26, 0.6);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.tab-btn {
  padding: 16px 22px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s ease;
  border-bottom: 3px solid transparent;
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

.tab-btn.active {
  color: var(--primary-light);
  border-bottom-color: var(--primary-light);
  background: rgba(56, 189, 248, 0.08);
}

.tab-content-wrapper {
  padding: 24px;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease-in-out;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-sub-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.sub-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.preset-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-preset {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-preset:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.btn-preset.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-light);
  box-shadow: var(--shadow-glow);
}

/* Controls Grid */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.controls-grid.grid-4-col {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

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

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

.control-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.val-badge {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary-light);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Range Inputs */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  outline: none;
  margin: 6px 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-light);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
  transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.range-marks {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
}

/* Select & Inputs */
select, input[type="text"], input[type="number"] {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
  transition: all 0.2s ease;
}

select:focus, input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.custom-size-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.custom-size-container input {
  width: 120px;
}

/* Auto Download Option Bar */
.auto-download-bar {
  background: rgba(16, 185, 129, 0.1);
  border-top: 1px solid rgba(16, 185, 129, 0.2);
  padding: 12px 24px;
}

.auto-download-bar .toggle-text {
  color: #34d399;
}

/* --------------------------------------------------------------------------
   Target Size Tab Styling
   -------------------------------------------------------------------------- */
.target-size-banner {
  display: flex;
  gap: 16px;
  align-items: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.banner-icon {
  font-size: 28px;
  color: var(--primary-light);
}

.target-size-banner h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.target-size-banner p {
  font-size: 13px;
  color: var(--text-muted);
}

.target-controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  background: rgba(15, 23, 42, 0.6);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

/* Toggle Switch */
.toggle-switch-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle-input {
  display: none;
}

.toggle-label {
  width: 44px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s ease;
}

.toggle-label::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.toggle-input:checked + .toggle-label {
  background: var(--success);
}

.toggle-input:checked + .toggle-label::after {
  transform: translateX(20px);
}

.toggle-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.target-kb-input-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.target-kb-input-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.input-with-unit {
  display: flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding-right: 12px;
}

.input-with-unit input {
  border: none;
  width: 100px;
  background: transparent;
}

.input-with-unit .unit {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-light);
}

.quick-kb-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-pill {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-pill:hover {
  background: rgba(56, 189, 248, 0.2);
  color: var(--primary-light);
  border-color: rgba(56, 189, 248, 0.4);
}

/* --------------------------------------------------------------------------
   Effects & Filter Tab
   -------------------------------------------------------------------------- */
.effect-actions-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-main);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--primary-light);
  width: 16px;
  height: 16px;
}

.reset-effects-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

.btn-text-only {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.btn-text-only:hover {
  color: var(--danger);
}

/* --------------------------------------------------------------------------
   Watermark & Naming Tab
   -------------------------------------------------------------------------- */
.watermark-inputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.inline-selects {
  display: flex;
  gap: 10px;
}

.inline-selects select {
  flex: 1;
}

/* --------------------------------------------------------------------------
   Drop Zone
   -------------------------------------------------------------------------- */
.drop-zone {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 2px dashed rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-lg);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary-light);
  background: rgba(56, 189, 248, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.icon-circle {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(139, 92, 246, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--primary-light);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.drop-zone h3 {
  font-size: 18px;
  font-weight: 700;
}

.drop-zone p {
  font-size: 13px;
  color: var(--text-muted);
}

.hidden-input {
  display: none;
}

/* --------------------------------------------------------------------------
   Quick Download Banner (대형 돋보이는 일괄 다운로드 퀵 바)
   -------------------------------------------------------------------------- */
.quick-download-banner {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(56, 189, 248, 0.2));
  backdrop-filter: blur(20px);
  border: 2px solid rgba(16, 185, 129, 0.5);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: var(--shadow-success-glow);
  animation: pulseGlow 2s infinite ease-in-out;
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.3); }
  50% { box-shadow: 0 0 35px rgba(16, 185, 129, 0.6); }
  100% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.3); }
}

.banner-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.banner-title {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.banner-title i {
  color: #34d399;
}

.banner-desc {
  font-size: 13px;
  color: var(--text-muted);
}

.banner-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-huge {
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 800;
  border-radius: var(--radius-md);
  letter-spacing: -0.3px;
}

.btn-small {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1, #075985);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), var(--success-hover));
  color: #fff;
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669, #047857);
}

.btn-glow {
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-muted);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --------------------------------------------------------------------------
   Result & Summary Card
   -------------------------------------------------------------------------- */
.summary-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
}

.summary-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 18px;
  font-weight: 700;
}

.summary-stat.highlight .stat-value {
  color: var(--primary-light);
}

.summary-arrow {
  color: var(--text-dim);
  font-size: 16px;
}

.summary-divider {
  width: 1px;
  height: 36px;
  background: var(--border-color);
}

.save-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
}

.summary-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Image Grid & Cards
   -------------------------------------------------------------------------- */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.img-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.img-card:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.4);
}

.img-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.card-title-group {
  flex: 1;
  overflow: hidden;
}

.card-filename {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-dimens {
  font-size: 12px;
  color: var(--text-muted);
}

.btn-icon-danger {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn-icon-danger:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* Progress bar */
.progress-container {
  width: 100%;
}

.progress-bar-bg {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-light), var(--accent-purple));
  transition: width 0.3s ease;
}

.card-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
}

.pct-badge {
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 12px;
}

.card-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.btn-card {
  flex: 1;
  font-size: 12px;
  padding: 8px 12px;
}

/* --------------------------------------------------------------------------
   Split Screen Comparison Modal
   -------------------------------------------------------------------------- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  z-index: 1001;
}

.modal-content.modal-large {
  max-width: 1000px;
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge-hint {
  font-size: 11px;
  color: var(--primary-light);
  background: rgba(56, 189, 248, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  transition: color 0.2s;
}

.btn-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  display: flex;
  justify-content: center;
}

/* Split Viewer Container */
.split-viewer-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  height: 520px;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  user-select: none;
  border: 1px solid var(--border-color);
}

.split-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.split-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  border-right: 2px solid var(--primary-light);
}

.split-overlay .split-img {
  width: var(--container-width, 100%);
  max-width: none;
}

.split-handle {
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  width: 4px;
  background: var(--primary-light);
  cursor: ew-resize;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.handle-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 10px;
  font-weight: bold;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.8);
}

.split-label {
  position: absolute;
  bottom: 16px;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  backdrop-filter: blur(8px);
  z-index: 5;
}

.split-label.left {
  left: 16px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.split-label.right {
  right: 16px;
  background: rgba(56, 189, 248, 0.85);
  color: #000;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.app-footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: var(--text-dim);
}