/**
 * Browser Prototypes Set 3 - Custom Styles
 * Diversity Grid Browser - Heatmap calendar + detail card
 */

/* Variable aliases for shorthand usage */
:root {
    --text-primary: var(--color-text, #1a1a1a);
    --text-secondary: var(--color-text-secondary, #666);
    --surface: var(--color-surface, #fff);
    --bg: var(--color-background, #fafafa);
    --border: var(--color-border, #e5e5e5);
    --accent: var(--color-accent, #d4a373);
    --accent-dark: var(--color-accent-dark, #bc8c5f);
}

/* =============================================================================
   PROTOTYPE 9: DIVERSITY GRID BROWSER
   ============================================================================= */

.divgrid-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.25rem 2rem 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

/* Year navigation controls */
.divgrid-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.divgrid-nav-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.15s ease;
}

.divgrid-nav-btn:hover {
    color: var(--text-primary);
}

.divgrid-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.divgrid-year-label {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    min-width: 80px;
    text-align: center;
}

/* Calendar grid layout */
.divgrid-calendar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

/* Month headers row */
.divgrid-months {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 6px;
    width: 100%;
    max-width: 660px;
    margin-bottom: 0.25rem;
}

.divgrid-month-label {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Week squares grid */
.divgrid-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 6px;
    width: 100%;
    max-width: 660px;
}

/* Individual week square */
.divgrid-week {
    aspect-ratio: 1;
    width: 100%;
    max-width: 44px;
    justify-self: center;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
}

.divgrid-week:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10;
}

.divgrid-week--selected {
    outline: 3px solid var(--text-primary);
    outline-offset: 2px;
    transform: scale(1.1);
    z-index: 10;
}

.divgrid-week--empty {
    background: transparent !important;
    cursor: default;
}

.divgrid-week--empty:hover {
    transform: none;
    box-shadow: none;
}

/* Diversity color scale - cream to orange/brown */
.divgrid-week--level-0 { background: #FEF9E7; } /* All returning - very light cream */
.divgrid-week--level-1 { background: #FCE9B8; } /* Mostly returning - light yellow */
.divgrid-week--level-2 { background: #F5D485; } /* Some new - golden */
.divgrid-week--level-3 { background: #E8A84C; } /* More new - orange */
.divgrid-week--level-4 { background: #D97706; } /* Many new - dark orange */
.divgrid-week--level-5 { background: #92400E; } /* Mostly new - brown */

/* Footer with watermark + legend */
.divgrid-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.divgrid-watermark {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.divgrid-subtitle {
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* Legend */
.divgrid-legend {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.divgrid-legend-text {
    width: 110px;
    font-size: 0.8rem;
    color: var(--text-primary);
}

.divgrid-legend-text:first-child {
    text-align: right;
}

.divgrid-legend-text:last-child {
    text-align: left;
}

.divgrid-legend-gradient {
    width: 120px;
    height: 14px;
    border-radius: 3px;
    background: linear-gradient(to right, #FEF9E7, #FCE9B8, #F5D485, #E8A84C, #D97706, #92400E);
    border: 1px solid #E5E7EB;
}

/* =============================================================================
   DETAIL CARD (below grid)
   ============================================================================= */

.divgrid-detail {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem 2.5rem;
    min-height: 180px;
    border: 1px solid var(--border);
}

.divgrid-detail-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Detail card content */
.divgrid-detail-card {
    animation: detailSlideUp 0.3s ease;
}

@keyframes detailSlideUp {
    0% {
        opacity: 0;
        transform: translateY(8px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header row */
.divgrid-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.75rem;
}

.divgrid-detail-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.divgrid-detail-year {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.divgrid-detail-badges {
    display: flex;
    gap: 0.75rem;
}

.divgrid-badge {
    padding: 0.4rem 1rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 700;
}

.divgrid-badge--new {
    background: #10B981;
    color: white;
}

.divgrid-badge--items {
    background: transparent;
    border: 1.5px solid #D97706;
    color: #D97706;
}

/* Cookie items grid - 4 columns text list */
.divgrid-detail-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem 1.5rem;
}

@media (max-width: 900px) {
    .divgrid-detail-items {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .divgrid-detail-items {
        grid-template-columns: repeat(2, 1fr);
    }
}

.divgrid-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.5rem 0;
    padding-left: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-primary);
    border-left: 2px solid var(--border);
}

.divgrid-item--new {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    border-left: 3px solid #10B981;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.divgrid-item-rank {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--text-secondary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 1px;
}

.divgrid-item--new .divgrid-item-rank {
    background: #10B981;
}

.divgrid-item-name {
    flex: 1;
    font-weight: 500;
}

/* Footer stats */
.divgrid-detail-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 1.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-secondary);
}


.divgrid-stat {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.divgrid-stat-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.divgrid-stat-dot--cookie {
    background: #D4A373;
}

.divgrid-stat-dot--ncd {
    background: #8B5A2B;
}

.divgrid-stat-dot--lto {
    background: #E8B896;
}

/* =============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================= */

@media (max-width: 800px) {
    .divgrid-container {
        padding: 1rem 0.75rem;
    }

    .divgrid-grid {
        gap: 4px;
    }

    .divgrid-week {
        max-width: 38px;
    }

    .divgrid-detail {
        padding: 1.5rem;
    }

    .divgrid-detail-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 550px) {
    .divgrid-months {
        display: none;
    }

    .divgrid-grid {
        grid-template-columns: repeat(6, 1fr);
        grid-template-rows: auto;
        gap: 4px;
        max-width: 100%;
    }

    .divgrid-week {
        max-width: 36px;
    }

    .divgrid-legend {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .divgrid-detail-header {
        flex-direction: column;
        gap: 1rem;
    }

    .divgrid-detail-badges {
        align-self: flex-start;
    }
}