/* ============================================
   HyperViewer - Part of HyperRasterizer Family
   Design System v1.0
   ============================================ */

/* CSS Variables - HyperRasterizer Design Tokens */
:root {
    /* Primary Colors - Cyan/Blue Tech Theme */
    --color-primary: #00D4FF;
    --color-primary-dark: #0099CC;
    --color-primary-light: #66E5FF;
    --color-primary-glow: rgba(0, 212, 255, 0.4);

    /* Secondary Colors */
    --color-secondary: #0066FF;
    --color-accent: #00FF88;

    /* Neutral Colors */
    --color-bg-primary: #0A0A0F;
    --color-bg-secondary: #12121A;
    --color-bg-tertiary: #1A1A24;
    --color-bg-panel: rgba(18, 18, 26, 0.95);

    /* Text Colors */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.6);

    /* Border Colors */
    --color-border: rgba(0, 212, 255, 0.2);
    --color-border-subtle: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(0, 212, 255, 0.4);

    /* Status Colors */
    --color-success: #00FF88;
    --color-warning: #FFB800;
    --color-error: #FF4466;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', monospace;
}

/* ===========================================
 * Z-Index Stack Reference
 * ===========================================
 * 1-10    : Base UI (top-bar, side-panel)
 * 50      : Mobile overlay panel
 * 200     : Modals (error, success)
 * 500     : Fullscreen drop zone
 * 10000+  : Dropdowns, tooltips (--hv-z-dropdown)
 * 10001   : Modal overlays (--hv-z-modal)
 * 10002   : Notifications (--hv-z-notification)
 */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    overflow: hidden;
    height: 100vh;
    line-height: 1.5;
}

#app {
    width: 100%;
    height: 100%;
    position: relative;
}

/* Canvas */
#canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
    background: radial-gradient(ellipse at center, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

#canvas:active {
    cursor: grabbing;
}

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

/* ============================================
   Top Bar - Header
   ============================================ */
.top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.95) 0%, rgba(10, 10, 15, 0.85) 100%);
    backdrop-filter: blur(20px);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 20;
    border-bottom: 1px solid var(--color-border);
}

.title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px var(--color-primary-glow);
}

.title::before {
    content: none;
}

.stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-primary);
}

/* ============================================
   Side Panel
   ============================================ */
.side-panel {
    position: absolute;
    top: 64px;
    right: 0;
    width: 340px;
    height: calc(100% - 64px);
    background: var(--color-bg-panel);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--color-border);
    overflow-y: auto;
    z-index: 10;
    transition: transform var(--transition-normal);
}

.side-panel::-webkit-scrollbar {
    width: 6px;
}

.side-panel::-webkit-scrollbar-track {
    background: transparent;
}

.side-panel::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.side-panel::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}

.side-panel.collapsed {
    transform: translateX(100%);
}

/* Toggle Button */
.toggle-panel-btn {
    position: absolute;
    top: 50%;
    right: 340px;
    transform: translateY(-50%);
    width: 24px;
    height: 72px;
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 11;
}

.toggle-panel-btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-primary);
    border-color: var(--color-border-hover);
}

.side-panel.collapsed + .toggle-panel-btn {
    right: 0;
    border-right: 1px solid var(--color-border);
    border-left: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.side-panel.collapsed + .toggle-panel-btn svg {
    transform: rotate(180deg);
}

.toggle-panel-btn svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-normal);
}

/* ============================================
   Panel Sections
   ============================================ */
.panel-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-subtle);
}

.panel-section h3 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.panel-section h3::before {
    content: '';
    width: 3px;
    height: 14px;
    background: var(--color-primary);
    border-radius: 2px;
}

.panel-section h4 {
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Drop Zone
   ============================================ */
.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 212, 255, 0.02) 100%);
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, var(--color-primary-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.drop-zone:hover {
    border-color: var(--color-border-hover);
    background: linear-gradient(135deg, transparent 0%, rgba(0, 212, 255, 0.05) 100%);
}

.drop-zone:hover::before {
    opacity: 0.3;
}

.drop-zone.drag-over {
    border-color: var(--color-primary);
    background: rgba(0, 212, 255, 0.08);
    box-shadow: 0 0 30px var(--color-primary-glow);
}

.drop-zone.drag-over::before {
    opacity: 0.5;
}

.drop-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    opacity: 0.6;
    transition: all var(--transition-normal);
}

.drop-zone:hover .drop-icon {
    opacity: 1;
    transform: translateY(-4px);
}

.drop-text {
    font-size: 0.95rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.drop-subtext {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Buttons
   ============================================ */
.button {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
}

.button-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-bg-primary);
    box-shadow: 0 4px 16px var(--color-primary-glow);
    position: relative;
    overflow: hidden;
}

.button-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--color-primary-glow);
}

.button-primary:hover::before {
    left: 100%;
}

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

.button-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.button-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--color-border-hover);
}

/* Disabled state for data-dependent buttons */
.button-disabled,
.button:disabled {
    background: var(--color-bg-tertiary) !important;
    color: var(--color-text-muted) !important;
    border-color: var(--color-border-subtle) !important;
    box-shadow: none !important;
    cursor: not-allowed !important;
    opacity: 0.5;
    pointer-events: none;
}

.button-disabled::before {
    display: none;
}

/* Disabled state for tool tabs */
.tool-tab:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================
   Help Text / Controls Info
   ============================================ */
.help-text {
    font-size: 0.8rem;
    line-height: 1.7;
}

.help-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.help-text strong {
    color: var(--color-primary);
    font-weight: 500;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    min-width: 80px;
}

/* ============================================
   Loading Overlay — Progressive Blur Reveal
   ============================================ */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-overlay.fade-out {
    opacity: 0;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    transition: opacity 0.5s ease-out, backdrop-filter 0.5s ease-out,
                -webkit-backdrop-filter 0.5s ease-out;
    pointer-events: none;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

/* Completion: content shrinks + fades before overlay dissolves */
.loading-content.completing {
    transform: scale(0.92);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-logo {
    margin-bottom: 4px;
}

.loading-logo-text {
    font-family: var(--font-sans);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-primary), #7B61FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: loadingPulse 2.4s ease-in-out infinite;
}

@keyframes loadingPulse {
    0%, 100% { opacity: 1; filter: brightness(1); }
    50% { opacity: 0.65; filter: brightness(1.3); }
}

/* --- Hyper Branded Spinner + Progress Ring --- */
.loading-ring-container {
    position: relative;
    width: 120px;
    height: 120px;
}

.hyper-spinner {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.15));
}

.hyper-arcs {
    animation: hyper-rotate 2.5s linear infinite;
    transform-origin: 0 0;
}

.hyper-glow {
    animation: hyper-pulse 2s ease-in-out infinite;
}

.hyper-arc-1 { animation: hyper-arc-fade 2s ease-in-out infinite; }
.hyper-arc-2 { animation: hyper-arc-fade 2s ease-in-out 0.67s infinite; }
.hyper-arc-3 { animation: hyper-arc-fade 2s ease-in-out 1.33s infinite; }

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

@keyframes hyper-pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

@keyframes hyper-arc-fade {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.loading-ring-progress {
    stroke: var(--color-primary);
    stroke-width: 3;
    stroke-linecap: round;
    /* circumference = 2 * π * 55 ≈ 345.575 */
    stroke-dasharray: 345.575;
    stroke-dashoffset: 345.575; /* 0% filled */
    transition: stroke-dashoffset 0.4s ease-out;
    filter: drop-shadow(0 0 8px var(--color-primary-glow));
}

/* --- Percentage display (below spinner) --- */
.loading-percentage {
    display: flex;
    align-items: baseline;
    gap: 2px;
    margin-top: -8px;
    user-select: none;
}

.loading-pct-value {
    font-family: var(--font-mono);
    font-size: 30px;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text-primary);
}

.loading-pct-symbol {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-muted);
}

/* --- Stage text --- */
.loading-stage {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    min-height: 20px;
    text-align: center;
    transition: opacity 0.3s ease;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-content {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 480px;
    width: 90%;
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* Success modal styling */
.modal-content.success h3 {
    color: #00d4ff;
}

.modal-content.success p {
    white-space: pre-line;
}

/* ============================================
   No WebGPU Warning
   ============================================ */
.no-webgpu {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}

.no-webgpu-content {
    text-align: center;
    max-width: 480px;
    padding: var(--spacing-xl);
}

.no-webgpu-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-error);
}

.no-webgpu-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.no-webgpu-content ul {
    list-style: none;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
}

.no-webgpu-content li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* ============================================
   Recent Files
   ============================================ */
.recent-files {
    margin-top: var(--spacing-md);
}

.recent-files ul {
    list-style: none;
}

.recent-files li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid transparent;
}

.recent-files li:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--color-border);
}

.recent-files .file-size {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* ============================================
   Controls
   ============================================ */
.control-group {
    margin-bottom: var(--spacing-md);
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.control-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.control-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 767px) {
    .side-panel {
        width: 300px;
    }

    .toggle-panel-btn {
        right: 300px;
    }

    .top-bar {
        padding: var(--spacing-md);
    }

    .title {
        font-size: 1.25rem;
    }

    .stats {
        gap: var(--spacing-md);
    }

    .stat-item {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.panel-section {
    animation: slideIn 0.3s ease forwards;
}

.side-panel > .panel-section:nth-child(1) { animation-delay: 0.1s; }
.side-panel > .panel-section:nth-child(2) { animation-delay: 0.2s; }
.side-panel > .panel-section:nth-child(3) { animation-delay: 0.3s; }

/* ============================================
   Fullscreen Drop Zone
   ============================================ */
.fullscreen-drop-zone {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    animation: fadeIn 0.2s ease;
    cursor: copy;
}

.fullscreen-drop-zone::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 3px dashed var(--color-primary);
    border-radius: var(--radius-lg);
    pointer-events: none;
    animation: borderPulse 1.5s ease-in-out infinite;
}

@keyframes borderPulse {
    0%, 100% {
        opacity: 0.4;
        border-color: var(--color-primary);
    }
    50% {
        opacity: 1;
        border-color: var(--color-primary-light);
    }
}

.fullscreen-drop-content {
    text-align: center;
    pointer-events: none;
}

.fullscreen-drop-icon {
    width: 80px;
    height: 80px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    animation: bounceUp 1s ease-in-out infinite;
}

@keyframes bounceUp {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

.fullscreen-drop-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.fullscreen-drop-hint {
    font-size: 1rem;
    color: var(--color-primary);
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
}

/* ============================================
   Panel Groups (Accordion)
   ============================================ */
.panel-group {
  border-bottom: 1px solid var(--color-border-subtle);
}

.panel-group-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
  list-style: none;
}

.panel-group-header::-webkit-details-marker {
  display: none;
}

.panel-group-header::marker {
  display: none;
  content: '';
}

.panel-group-header:hover {
  background: rgba(0, 212, 255, 0.05);
}

.panel-group-icon {
  color: var(--color-primary);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.panel-group-title {
  flex: 1;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

.panel-group-badge {
  flex-shrink: 0;
}

.panel-group-header::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--color-text-muted);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.panel-group[open] > .panel-group-header::after {
  transform: rotate(180deg);
}

.panel-group-content > .panel-section {
  padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-lg);
  border-bottom: none;
}

.panel-group-content > .panel-section:first-child {
  padding-top: 0;
}

/* ============================================
   Button Grid
   ============================================ */
.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.button-grid-full {
  grid-column: 1 / -1;
}

.button-full {
  width: 100%;
  margin-bottom: var(--spacing-sm);
}

.button-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.78rem;
}

/* ============================================
   Backdrop-filter Fallback
   ============================================ */
@supports not (backdrop-filter: blur(1px)) {
  .side-panel,
  .top-bar {
    background: var(--color-bg-panel, rgba(18, 18, 26, 0.98));
  }
}

/* ============================================
   Mobile FAB & Responsive
   ============================================ */
.mobile-panel-toggle {
  display: none;
}

@media (max-width: 599px) {
  .top-bar {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .title h1 {
    font-size: 1.1rem !important;
  }

  .stats {
    display: none;
  }

  .side-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 50;
  }

  .side-panel.mobile-open {
    transform: translateX(0);
  }

  .toggle-panel-btn {
    display: none;
  }

  .mobile-panel-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    box-shadow: 0 4px 20px var(--color-primary-glow);
    color: var(--color-bg-primary);
    cursor: pointer;
    z-index: 100;
    transition: all var(--transition-fast);
  }

  .mobile-panel-toggle:active {
    transform: scale(0.95);
  }

  .mobile-panel-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-subtle);
    color: var(--color-text-secondary);
    cursor: pointer;
    z-index: 51;
  }
}

@media (max-width: 600px) {
  .button-sm {
    min-height: 44px;
    min-width: 44px;
  }
  .panel-group-header {
    min-height: 44px;
  }
}

@media (min-width: 600px) and (max-width: 767px) {
  .side-panel {
    width: 320px;
  }

  .toggle-panel-btn {
    right: 320px;
  }

  .side-panel.collapsed + .toggle-panel-btn {
    right: 0;
  }
}

@media (min-width: 1200px) {
  .side-panel {
    width: 380px;
  }

  .toggle-panel-btn {
    right: 380px;
  }

  .side-panel.collapsed + .toggle-panel-btn {
    right: 0;
  }
}

/* ============================================
   Accessibility - Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

}