/* PM Measurement Tool - Shared Styles */

:root {
    --bg-primary: #0a1820;
    --bg-secondary: #093955;
    --bg-tertiary: #0d4a6e;
    --text-primary: #faeecf;
    --text-secondary: #c4b89a;
    --text-muted: #8b9a7a;
    --accent: #ee8625;
    --accent-hover: #ff9933;
    --accent-muted: rgba(238, 134, 37, 0.2);
    --border-color: #1a5a7a;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --canvas-bg: #1a3040;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --pink: #E91E8C;
}

[data-theme="light"] {
    --bg-primary: #faeecf;
    --bg-secondary: #f5e8d0;
    --bg-tertiary: #efe2c0;
    --text-primary: #093955;
    --text-secondary: #1a5a7a;
    --text-muted: #5a7a6a;
    --accent: #ee8625;
    --accent-hover: #d67620;
    --accent-muted: rgba(238, 134, 37, 0.15);
    --border-color: #d4c4a4;
    --shadow-color: rgba(0, 0, 0, 0.15);
    --canvas-bg: #e8e0d0;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 600;
}

.brand-icon {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logout-btn {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logout-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px;
    display: flex;
    gap: 4px;
}

.theme-toggle-btn {
    background: none;
    border: none;
    padding: 6px 10px;
    border-radius: 16px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 14px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle-btn.active {
    background: var(--accent);
    color: #fff;
}

.theme-toggle-btn:hover:not(.active) {
    color: var(--text-primary);
}

/* Main Content */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.container {
    text-align: center;
    max-width: 600px;
    width: 100%;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 48px;
}

/* Upload Area */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 60px 40px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
}

.upload-zone:hover {
    border-color: var(--accent);
    background: var(--accent-muted);
}

.upload-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-muted);
    transform: scale(1.02);
}

.upload-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: var(--accent-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-icon svg {
    width: 36px;
    height: 36px;
    color: var(--accent);
}

.upload-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.upload-hint {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.upload-hint strong {
    color: var(--accent);
}

#file-input {
    display: none;
}

/* Loading State */
.loading {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 40px;
}

.loading.active {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Error Message */
.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    padding: 12px 20px;
    border-radius: 8px;
    margin-top: 20px;
    display: none;
}

.error.active {
    display: block;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    background: #16a34a;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-icon {
    padding: 8px;
    min-width: 36px;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.card-body {
    padding: 16px;
}

/* Grid */
.grid {
    display: grid;
    gap: 24px;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-cols-3, .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Page Grid (for pages.html) */
.page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    padding: 24px;
}

.page-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.page-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow-color);
}

.page-thumb {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
    background: var(--canvas-bg);
}

.page-info {
    padding: 12px;
    text-align: center;
}

.page-label {
    font-weight: 600;
    color: var(--text-primary);
}

.page-dims {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Toolbar */
.toolbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 8px;
}

/* Canvas Container */
.canvas-container {
    flex: 1;
    background: var(--canvas-bg);
    overflow: hidden;
    position: relative;
}

/* Sidebar */
.sidebar {
    width: 320px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
}

.sidebar-section {
    border-bottom: 1px solid var(--border-color);
    padding: 16px;
}

.sidebar-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

/* Toggle Switch */
.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

.toggle-label {
    font-size: 14px;
    color: var(--text-primary);
}

.toggle-switch {
    position: relative;
    width: 40px;
    height: 22px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border-radius: 11px;
    transition: 0.2s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background: var(--text-primary);
    border-radius: 50%;
    transition: 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(18px);
}

/* Min Mode Toolbar (Bottom) */
.min-toolbar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 24px var(--shadow-color);
    z-index: 1000;
}

/* Measurement Labels */
.measurement-label {
    position: absolute;
    background: rgba(233, 30, 140, 0.9);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    z-index: 100;
}

/* Status Badge */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}