/* =====================================================
   APEX - Changelog Styles
   Professional change tracking & release log
   ===================================================== */

/* ─── Page Container ─── */
.changelog-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-xl);
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0px));
    min-height: 100%;
    -webkit-tap-highlight-color: transparent;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.changelog-page *,
.changelog-page *::before,
.changelog-page *::after {
    box-sizing: border-box;
}

/* ─── Info Banner ─── */
.changelog-info-banner {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, #eff6ff, #f0f9ff);
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    position: relative;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.changelog-info-icon {
    flex-shrink: 0;
    color: #3b82f6;
    display: flex;
    align-items: center;
    padding-top: 1px;
}

.changelog-info-icon .material-icons-outlined {
    font-size: 20px;
}

.changelog-info-content {
    flex: 1;
    min-width: 0;
}

.changelog-info-content p {
    font-size: var(--font-size-xs);
    color: #1e40af;
    line-height: 1.5;
    margin: 0;
}

.changelog-info-content p + p {
    margin-top: 4px;
}

.changelog-info-content strong {
    font-weight: 600;
}

.changelog-info-dismiss {
    flex-shrink: 0;
    background: none;
    border: none;
    color: #93c5fd;
    cursor: pointer;
    padding: 2px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.changelog-info-dismiss:hover {
    color: #3b82f6;
    background: #dbeafe;
}

.changelog-info-dismiss .material-icons-outlined {
    font-size: 18px;
}

/* ─── Filters Bar ─── */
.changelog-filters {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.changelog-filter-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.changelog-filter-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.changelog-inline-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

.changelog-inline-title .material-icons-outlined {
    font-size: 22px;
    color: var(--text-tertiary);
}

/* ─── Type Chips ─── */
.changelog-type-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.changelog-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1.5px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.changelog-chip .material-icons-outlined {
    font-size: 14px;
}

.changelog-chip:hover {
    border-color: var(--chip-color, var(--primary-400));
    color: var(--chip-color, var(--primary-600));
    background: var(--chip-bg, var(--primary-50));
}

.changelog-chip.active {
    border-color: var(--chip-color, #1e293b);
    background: var(--chip-color, #1e293b);
    color: white;
}

.changelog-chip.active .changelog-chip-count {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

.changelog-chip-count {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    font-size: 10px;
    font-weight: 600;
    padding: 0 5px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
    line-height: 16px;
    transition: all var(--transition-fast);
}

/* ─── Filter Controls ─── */
.changelog-filter-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.changelog-filter-select {
    appearance: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 6px 28px 6px 10px;
    font-size: var(--font-size-xs);
    color: var(--text-primary);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    transition: all var(--transition-fast);
}

.changelog-filter-select:hover {
    border-color: var(--primary-400);
}

.changelog-filter-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 2px var(--primary-100);
}

.changelog-search {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0 var(--spacing-sm);
    flex: 1;
    min-width: 180px;
    transition: all var(--transition-fast);
}

.changelog-search:focus-within {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 2px var(--primary-100);
}

.changelog-search .material-icons-outlined {
    font-size: 18px;
    color: var(--text-tertiary);
}

.changelog-search input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 6px 0;
    font-size: var(--font-size-xs);
    color: var(--text-primary);
    outline: none;
    min-width: 0;
}

.changelog-search input::placeholder {
    color: var(--text-tertiary);
}

.changelog-clear-filters {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-tertiary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.changelog-clear-filters:hover {
    background: #fef2f2;
    border-color: #ef4444;
    color: #ef4444;
}

.changelog-clear-filters .material-icons-outlined {
    font-size: 18px;
}

/* ─── Timeline ─── */
.changelog-timeline {
    position: relative;
}

/* ─── Date Group ─── */
.changelog-date-group {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.changelog-date-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    position: sticky;
    top: 0;
    z-index: 5;
    background: var(--bg-page, var(--bg-secondary));
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    user-select: none;
}

.changelog-date-header:hover {
    background: var(--bg-tertiary);
}

.changelog-date-chevron {
    font-size: 20px;
    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.changelog-date-text {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--text-primary);
}

.changelog-date-count {
    font-size: 11px;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    padding: 1px 8px;
    border-radius: var(--radius-full);
    font-weight: 500;
}

.changelog-date-type-summary {
    display: flex;
    gap: 4px;
    margin-left: auto;
    flex-wrap: wrap;
}

.changelog-date-type-pill {
    font-size: 10px;
    font-weight: 600;
    padding: 1px 8px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* ─── Collapsed date group ─── */
.changelog-entries.date-collapsed {
    display: none;
}

/* ─── Entry Cards ─── */
.changelog-entries {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-left: 12px;
    border-left: 2px solid var(--border-color);
    margin-left: 20px;
}

.changelog-entry {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-left: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.changelog-entry:hover {
    border-color: var(--primary-200);
    box-shadow: var(--shadow-sm);
}

.changelog-entry.expanded {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-300);
}

.changelog-entry-header {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    user-select: none;
}

.changelog-entry-badges {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    flex-wrap: wrap;
}

.changelog-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    border: 1px solid;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.changelog-type-badge .material-icons-outlined {
    font-size: 13px;
}

.changelog-category-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 500;
    border: 1px solid;
}

.changelog-entry-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.changelog-entry-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.changelog-expand-icon {
    color: var(--text-tertiary);
    font-size: 20px;
    flex-shrink: 0;
}

.changelog-entry.expanded .changelog-expand-icon {
    color: var(--primary-500);
}

.changelog-entry-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
    margin-top: 2px;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* ─── Entry Details (collapsible) ─── */
.changelog-entry-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.changelog-entry-details.open {
    max-height: 500px;
}

/* ─── Before / After Comparison ─── */
.changelog-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-md) var(--spacing-sm);
}

.changelog-before,
.changelog-after {
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    line-height: 1.5;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.changelog-before {
    background: #fef2f2;
    border-left: 3px solid #ef4444;
}

.changelog-after {
    background: #f0fdf4;
    border-left: 3px solid #22c55e;
}

.changelog-compare-label {
    display: flex;
    align-items: center;
    gap: 3px;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.changelog-before .changelog-compare-label {
    color: #dc2626;
}

.changelog-after .changelog-compare-label {
    color: #16a34a;
}

.changelog-compare-label .material-icons-outlined {
    font-size: 14px;
}

.changelog-before p,
.changelog-after p {
    color: var(--text-primary);
    margin: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* ─── Files List ─── */
.changelog-files {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md) var(--spacing-sm);
    border-top: 1px solid var(--border-light, var(--border-color));
    margin: 0 var(--spacing-xs);
}

.changelog-files .material-icons-outlined {
    font-size: 14px;
    color: var(--text-tertiary);
}

.changelog-file {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 10px;
    padding: 1px 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--primary-600);
    border: 1px solid var(--border-color);
}

/* ─── Empty State ─── */
.changelog-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.changelog-empty .material-icons-outlined {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.4;
}

.changelog-empty h3 {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.changelog-empty p {
    font-size: var(--font-size-sm);
}

/* ─── Pagination ─── */
.changelog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.changelog-page-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.changelog-page-btn:hover:not(:disabled) {
    border-color: var(--primary-400);
    color: var(--primary-600);
    background: var(--primary-50);
}

.changelog-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.changelog-page-btn .material-icons-outlined {
    font-size: 18px;
}

.changelog-page-info {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ─── Print Styles ─── */
@media print {
    .changelog-page { max-width: none; padding: 0; }
    .changelog-info-banner { display: none; }
    .changelog-filters { display: none; }
    .changelog-entry-details,
    .changelog-entry-details.open { max-height: none !important; }
    .changelog-entries.date-collapsed { display: flex !important; }
    .changelog-entry { break-inside: avoid; }
    .changelog-pagination { display: none; }
    .changelog-expand-icon,
    .changelog-date-chevron { display: none; }
}

/* ─── Responsive: Tablet & Mobile (≤768px) ─── */
@media (max-width: 768px) {
    /* ── Page wrapper: edge-to-edge (matches Properties/Orders pattern) ── */
    .changelog-page {
        padding: 0;
        margin: 0 calc(-1 * var(--spacing-md));
        max-width: none;
        overflow: hidden;
    }

    /* ── Info banner: edge-to-edge, no radius ── */
    .changelog-info-banner {
        border-radius: 0;
        border-left: none;
        border-right: none;
        padding: var(--spacing-sm) var(--spacing-md);
        margin-bottom: 0;
    }

    .changelog-info-icon {
        display: none;
    }

    .changelog-info-content p {
        font-size: 12px;
        line-height: 1.4;
        overflow-wrap: anywhere;
    }

    /* ── Filters: edge-to-edge ── */
    .changelog-filters {
        border-radius: 0;
        border-left: none;
        border-right: none;
        padding: var(--spacing-sm) var(--spacing-md);
        margin-bottom: 0;
        box-shadow: none;
    }

    .changelog-filter-top {
        flex-wrap: wrap;
        gap: 8px;
    }

    .changelog-inline-title {
        font-size: 16px;
        width: 100%;
    }

    /* Type chips: horizontal scroll */
    .changelog-type-chips {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding-bottom: 2px;
    }

    .changelog-type-chips::-webkit-scrollbar {
        display: none;
    }

    /* Filter controls: stack vertically */
    .changelog-filter-controls {
        width: 100%;
        flex-direction: column;
        gap: 6px;
    }

    .changelog-filter-select {
        width: 100%;
        padding: 8px 28px 8px 10px;
        font-size: 14px;
    }

    .changelog-search {
        min-width: 0;
        width: 100%;
    }

    .changelog-search input {
        padding: 8px 0;
        font-size: 14px;
    }

    .changelog-clear-filters {
        align-self: flex-end;
    }

    /* ── Timeline ── */
    .changelog-timeline {
        background: var(--bg-secondary);
        padding: var(--spacing-sm) 0;
    }

    /* Remove timeline indent — cards use full width */
    .changelog-entries {
        padding-left: 0;
        border-left: none;
        margin-left: 0;
        gap: var(--spacing-sm);
    }

    .changelog-date-type-summary {
        display: none;
    }

    .changelog-date-header {
        padding: var(--spacing-xs) var(--spacing-md);
        gap: 4px;
        border-radius: 0;
        margin-bottom: 0;
    }

    .changelog-date-text {
        font-size: 14px;
    }

    /* ── Entry cards: full-bleed card style ── */
    .changelog-entry {
        margin-left: 0;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .changelog-entry:hover {
        box-shadow: none;
    }

    .changelog-entry-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .changelog-entry-title {
        overflow-wrap: anywhere;
    }

    .changelog-entry-desc {
        overflow-wrap: anywhere;
    }

    /* Before/after stacks vertically */
    .changelog-comparison {
        grid-template-columns: 1fr;
        padding: 0 var(--spacing-md) var(--spacing-sm);
    }

    .changelog-before p,
    .changelog-after p {
        overflow-wrap: anywhere;
    }

    /* Files */
    .changelog-files {
        padding: 6px var(--spacing-md) var(--spacing-sm);
        margin: 0;
    }

    .changelog-file {
        word-break: break-all;
    }

    /* Pagination */
    .changelog-pagination {
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    /* Empty state */
    .changelog-empty {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* ─── Responsive: Small phones (≤480px) ─── */
@media (max-width: 480px) {
    .changelog-info-content p {
        font-size: 11px;
    }

    .changelog-inline-title {
        font-size: 15px;
    }

    .changelog-inline-title .material-icons-outlined {
        font-size: 18px;
    }

    .changelog-chip {
        padding: 4px 8px;
        font-size: 11px;
    }

    .changelog-chip .material-icons-outlined {
        font-size: 12px;
    }

    .changelog-chip-count {
        font-size: 9px;
        padding: 0 4px;
        min-width: 14px;
        line-height: 14px;
    }

    .changelog-date-text {
        font-size: 13px;
    }

    .changelog-date-count {
        font-size: 10px;
        padding: 1px 6px;
    }

    .changelog-entry-title {
        font-size: 13px;
    }

    .changelog-entry-desc {
        font-size: 12px;
    }

    .changelog-type-badge {
        font-size: 10px;
        padding: 2px 6px;
    }

    .changelog-type-badge .material-icons-outlined {
        font-size: 11px;
    }

    .changelog-category-badge {
        font-size: 10px;
        padding: 2px 6px;
    }

    .changelog-before,
    .changelog-after {
        padding: 8px 10px;
        font-size: 12px;
    }

    .changelog-file {
        font-size: 9px;
    }

    .changelog-page-btn {
        padding: 8px 10px;
        font-size: 12px;
    }

    .changelog-page-info {
        font-size: 12px;
    }

    .changelog-empty .material-icons-outlined {
        font-size: 36px;
    }
}