/* ============================================
   PanForge Design System - Generator Page
   Dark theme specific styles for 3D generator
   ============================================ */

/* ----------------------------------------
   Base Dark Theme
   ---------------------------------------- */
body.generator-page {
    background: #0a0a0f;
    color: #ffffff;
    overflow: hidden;
}

body.generator-page::before {
    display: none; /* No grain on generator */
}

/* ----------------------------------------
   Canvas Container
   ---------------------------------------- */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    touch-action: none; /* Prevent default touch behaviors for custom handling */
}

/* ----------------------------------------
   Generator Header
   ---------------------------------------- */
.generator-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--space-4) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: var(--z-header);
    background: linear-gradient(180deg, #0a0a0f 0%, transparent 100%);
}

/* Generator page uses transparent gradient header */
.generator-page .site-header {
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.95) 0%, rgba(10, 10, 15, 0.8) 100%);
}

.generator-logo {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 3px;
    color: #ffffff;
    text-transform: uppercase;
    text-decoration: none;
}

.generator-logo span {
    font-weight: 400;
    color: var(--color-teal);
}

/* ----------------------------------------
   Control Panels
   ---------------------------------------- */
.control-panel {
    position: fixed;
    left: 20px;
    top: 80px; /* Fixed position below header */
    z-index: 50; /* Below header (z-index: 100) */
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 260px;
    max-height: calc(100vh - 120px); /* Prevent overflow at bottom */
    overflow-y: auto;
}

.panel-section {
    background: rgba(18, 18, 24, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    backdrop-filter: blur(20px);
    transition: border-color var(--transition-base);
}

.panel-section:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.panel-title {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.panel-title::before {
    content: '';
    width: 3px;
    height: 10px;
    background: var(--color-teal);
    border-radius: 2px;
}

.dimensions {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--leading-normal);
}

.dimensions strong {
    color: #ffffff;
    font-weight: 500;
}

/* ----------------------------------------
   Generate Button
   ---------------------------------------- */
.generate-btn {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    background: var(--color-teal);
    border: none;
    border-radius: var(--radius-md);
    color: #0a0a0f;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.generate-btn:hover {
    background: var(--color-teal-light);
    box-shadow: var(--shadow-teal-glow);
    transform: translateY(-1px);
}

.generate-btn:active {
    transform: translateY(0) scale(0.98);
}

.generate-btn svg {
    width: 16px;
    height: 16px;
}

/* ----------------------------------------
   Curve Preview
   ---------------------------------------- */
.curve-preview {
    margin-top: var(--space-3);
    background: rgba(0, 0, 0, 0.4);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.curve-preview canvas {
    width: 100%;
    height: 100px;
    display: block;
    border-radius: var(--radius-sm);
}

.curve-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.curve-label {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.5px;
}

.curve-type {
    font-size: var(--text-xs);
    color: var(--color-teal);
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    background: var(--color-teal-dim);
    border-radius: var(--radius-sm);
    text-align: center;
    line-height: var(--leading-snug);
    word-break: break-word;
}

.curve-type.hybrid {
    background: linear-gradient(135deg, var(--color-teal-dim), rgba(184, 134, 11, 0.15));
    border: 1px solid rgba(184, 134, 11, 0.3);
}

/* ----------------------------------------
   View Controls
   ---------------------------------------- */
.view-controls {
    display: flex;
    gap: var(--space-2);
}

.view-btn {
    flex: 1;
    padding: var(--space-2);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.4);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
}

.view-btn.active {
    background: var(--color-teal-dim);
    border-color: var(--color-teal);
    color: var(--color-teal);
}

/* ----------------------------------------
   Info Panel (Right Side)
   ---------------------------------------- */
.info-panel {
    position: fixed;
    right: 20px;
    top: 80px; /* Fixed position below header */
    z-index: 50; /* Below header */
    background: rgba(18, 18, 24, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    backdrop-filter: blur(20px);
    min-width: 200px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
}

.info-label {
    color: rgba(255, 255, 255, 0.4);
    font-weight: 400;
}

.info-value {
    color: #ffffff;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.info-value.highlight {
    color: var(--color-teal);
}

.info-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: var(--space-2) 0;
}

/* ----------------------------------------
   Toggle (Dark Theme)
   ---------------------------------------- */
.generator-page .toggle {
    background: rgba(255, 255, 255, 0.1);
}

.generator-page .toggle::after {
    background: rgba(255, 255, 255, 0.4);
}

.generator-page .toggle.active {
    background: var(--color-teal);
}

.generator-page .toggle.active::after {
    background: #0a0a0f;
}

.generator-page .toggle-row {
    border-top-color: rgba(255, 255, 255, 0.08);
}

.generator-page .toggle-label {
    color: rgba(255, 255, 255, 0.7);
}

/* ----------------------------------------
   Section Legend
   ---------------------------------------- */
.section-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
}

.legend-color {
    width: 10px;
    height: 3px;
    border-radius: 1px;
}

/* ----------------------------------------
   Instructions
   ---------------------------------------- */
.instructions {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-header);
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    background: rgba(18, 18, 24, 0.92);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
}

.instructions kbd {
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.08);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 500;
}

/* Show desktop instructions by default, hide mobile */
.mobile-instructions {
    display: none;
}

.desktop-instructions {
    display: block;
}

/* On touch devices / mobile, swap visibility */
@media (max-width: 768px) {
    .desktop-instructions {
        display: none;
    }
    
    .mobile-instructions {
        display: block;
    }
}

/* ----------------------------------------
   Section Colors for Curve Types
   ---------------------------------------- */
.section-color-line { background-color: #dc2626; }
.section-color-arc { background-color: #2563eb; }
.section-color-curve { background-color: #059669; }
.section-color-step { background-color: #7c3aed; }
.section-color-mushroom { background-color: #ea580c; }
.section-color-double-dome { background-color: #0d9488; }
.section-color-waves { background-color: #0891b2; }
.section-color-terraces { background-color: #475569; }
.section-color-bell { background-color: #db2777; }
.section-color-crater { background-color: #dc2626; }
.section-color-torus { background-color: #7c3aed; }
.section-color-hybrid { background-color: #d97706; }

/* ----------------------------------------
   Responsive Generator
   ---------------------------------------- */
@media (max-width: 900px) {
    .control-panel {
        left: 10px;
        width: 220px;
    }
    
    .info-panel {
        right: 10px;
        min-width: 180px;
    }
}

@media (max-width: 768px) {
    /* Control panel - left side, aligned by top with info panel */
    .control-panel {
        left: 10px;
        right: auto;
        width: calc(50% - 15px);
        top: 55%;
        bottom: 55px;
        transform: none;
        flex-direction: column;
        gap: 8px;
        max-height: none;
        overflow-y: auto;
    }
    
    /* Reorder panels on mobile: Bottom Shell first, then Top Dome, then View */
    .panel-bottom-shell { order: 1; }
    .panel-top-dome { order: 2; }
    .panel-view { order: 3; }
    
    .panel-section {
        flex: none;
        width: 100%;
        min-width: auto;
        padding: var(--space-3);
    }
    
    .panel-title {
        font-size: 10px;
        margin-bottom: var(--space-2);
    }
    
    /* Info panel - right side, same top alignment */
    .info-panel {
        display: block;
        position: fixed;
        right: 10px;
        left: auto;
        top: 55%;
        bottom: auto;
        transform: none;
        width: calc(50% - 15px);
        min-width: auto;
        padding: var(--space-3);
        max-height: none;
        overflow-y: visible;
        border-radius: var(--radius-lg);
    }
    
    .info-panel .panel-title {
        display: block;
        font-size: 10px;
    }
    
    .info-row {
        padding: var(--space-1) 0;
        font-size: 10px;
    }
    
    .info-divider {
        display: block;
        margin: var(--space-1) 0;
    }
    
    /* Curve preview compact */
    .curve-preview {
        display: block;
    }
    
    .curve-preview canvas {
        height: 50px;
    }
    
    /* Hide section legend on mobile */
    .section-legend {
        display: none;
    }
    
    /* Compact generate button */
    .generate-btn {
        padding: var(--space-2);
        font-size: 11px;
    }
    
    /* Smaller toggle row */
    .toggle-row {
        padding: var(--space-2) 0;
        margin-top: var(--space-2);
    }
    
    .toggle-label {
        font-size: 10px;
    }
    
    .toggle {
        width: 32px;
        height: 18px;
    }
    
    .toggle::after {
        width: 14px;
        height: 14px;
    }
    
    .toggle.active::after {
        left: 16px;
    }
    
    /* View controls compact */
    .view-controls {
        gap: 4px;
    }
    
    .view-btn {
        padding: var(--space-1);
        font-size: 10px;
    }
    
    /* Dimensions text smaller */
    .dimensions {
        font-size: 10px;
    }
    
    /* Instructions at very bottom */
    .instructions {
        bottom: 10px;
        left: 10px;
        right: 10px;
        transform: none;
        text-align: center;
        padding: var(--space-2) var(--space-3);
        font-size: 10px;
    }
    
    .instructions kbd {
        padding: 2px 6px;
        font-size: 10px;
    }
}

/* ----------------------------------------
   Favorites Buttons
   ---------------------------------------- */
.favorites-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.favorite-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: #f87171;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.favorite-btn:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.5);
    transform: translateY(-1px);
}

.favorite-btn.outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.7);
}

.favorite-btn.outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.25);
    color: #fff;
}

.favorite-btn.saved {
    background: rgba(239, 68, 68, 0.3);
    border-color: #ef4444;
    color: #fff;
}

.favorite-btn svg {
    width: 14px;
    height: 14px;
}

.favorite-btn svg.spin {
    animation: spin 1s linear infinite;
}

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

/* ----------------------------------------
   Favorites Modal
   ---------------------------------------- */
.favorites-modal {
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
}

.favorites-modal h3 {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    color: var(--color-paper);
    margin-bottom: var(--space-2);
}

.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.favorite-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.favorite-card:hover {
    border-color: var(--color-teal);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.favorite-thumbnail {
    aspect-ratio: 16/10;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.favorite-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.favorite-thumbnail .no-thumb {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.3);
}

.favorite-info {
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.favorite-type {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-teal);
    line-height: 1.3;
}

.favorite-date {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.4);
}

.favorite-actions {
    display: flex;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.fav-action-btn {
    flex: 1;
    padding: var(--space-2);
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.fav-action-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-teal);
}

.fav-action-btn.delete-btn:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.fav-action-btn svg {
    width: 16px;
    height: 16px;
}

.fav-action-btn + .fav-action-btn {
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

/* Favorites Empty State */
.favorites-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
}

.favorites-empty svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.favorites-empty p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
    color: rgba(255, 255, 255, 0.6);
}

.favorites-empty span {
    font-size: var(--text-sm);
}

/* ----------------------------------------
   Responsive Favorites
   ---------------------------------------- */
@media (max-width: 768px) {
    /* Keep favorites inline in the panel, just make them compact */
    .favorites-actions {
        display: flex;
        gap: var(--space-2);
        margin-top: var(--space-2);
    }
    
    .favorite-btn {
        padding: var(--space-2);
        min-width: auto;
        flex: 1;
    }
    
    .favorite-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .favorite-btn span:not(#favoritesCount) {
        display: none;
    }
    
    #favoritesCount {
        font-size: 10px;
        padding: 2px 5px;
    }
    
    .favorites-modal {
        max-width: 95%;
        max-height: 90vh;
    }
    
    .favorites-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
}