/* ABOUTME: Main stylesheet for the credit card rewards tracker app */
/* ABOUTME: Dark theme with professional aesthetic for financial data display */

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

:root {
    --bg: #0c0c0f;
    --bg-surface: #141418;
    --bg-card: #1a1a1f;
    --bg-card-hover: #222228;
    --bg-inset: rgba(0, 0, 0, 0.4);
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text: #f4f4f5;
    --text-2: #a1a1aa;
    --text-3: #71717a;
    
    --accent: #6366f1;
    --accent-hover: #818cf8;
    
    --green: #4ade80;
    --amber: #fbbf24;
    --red: #f87171;
    
    --radius: 12px;
    --radius-lg: 16px;
    --font: 'DM Sans', system-ui, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Main Layout */
.app {
    display: flex;
    min-height: 100vh;
}

/* Left Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
}

.logo {
    margin-bottom: 32px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.02em;
}

.logo p {
    color: var(--text-3);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* Search in sidebar */
.sidebar-search {
    margin-bottom: 24px;
}

.search-input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.search-input::placeholder {
    color: var(--text-3);
}

.search-hint {
    font-size: 0.75rem;
    color: var(--text-3);
    margin-top: 8px;
}

/* Quick Filters in sidebar */
.filter-section {
    margin-bottom: 24px;
}

.filter-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.quick-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filter-pill {
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}

.filter-pill:hover {
    border-color: var(--border-hover);
    color: var(--text-2);
}

.filter-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* Sidebar actions */
.sidebar-actions {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.add-btn {
    width: 100%;
    padding: 12px 16px;
    background: var(--accent);
    border: none;
    border-radius: 10px;
    color: white;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.add-btn:hover {
    background: var(--accent-hover);
}

.settings-btn {
    width: 100%;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.15s;
}

.settings-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-2);
}

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

/* Main Content */
.main {
    flex: 1;
    margin-left: 280px;
    padding: 32px 40px;
}

/* Top bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.page-title {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.page-title h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
}

.card-count {
    font-size: 0.9rem;
    color: var(--text-3);
}

.top-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.tab-buttons {
    display: flex;
    gap: 4px;
    background: var(--bg-surface);
    border-radius: 10px;
    padding: 4px;
}

.tab-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.tab-btn:hover {
    color: var(--text-2);
}

.tab-btn.active {
    background: var(--bg-card);
    color: var(--text);
}

.sort-select {
    padding: 8px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-2);
    font-family: var(--font);
    font-size: 0.85rem;
    cursor: pointer;
}

.sort-select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

/* Credit Card - Premium Look */
.credit-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, rgba(26, 26, 31, 0.8) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

/* Card accent - top edge colored bar */
.credit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-color, var(--accent));
}

/* Subtle shimmer effect */
.credit-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.03),
        transparent
    );
    transition: left 0.5s ease;
    pointer-events: none;
}

.credit-card:hover::after {
    left: 100%;
}

.credit-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.card-info h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-info .issuer {
    color: var(--text-3);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.card-info .last-four {
    color: var(--text-3);
    font-size: 0.7rem;
    font-family: 'SF Mono', Monaco, 'Consolas', monospace;
    background: var(--bg-inset);
    padding: 3px 8px;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

.card-notes {
    color: var(--text-3);
    font-size: 0.85rem;
    font-style: italic;
    margin-top: 16px;
    padding: 12px 14px;
    background: var(--bg-inset);
    border-radius: 10px;
    border-left: 3px solid var(--card-color, var(--accent));
}

.card-actions {
    display: flex;
    gap: 6px;
}

.card-actions button {
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
}

.card-actions button:hover {
    border-color: var(--border-hover);
    color: var(--text-2);
    background: rgba(255, 255, 255, 0.03);
}

.card-actions .delete-btn:hover {
    border-color: var(--red);
    color: var(--red);
    background: rgba(248, 113, 113, 0.1);
}

/* Rewards Section */
.rewards-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.reward-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--bg-inset);
    border-radius: 10px;
    transition: background 0.15s;
}

.reward-row:hover {
    background: rgba(0, 0, 0, 0.5);
}

.reward-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.category-tag {
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-2);
    font-weight: 500;
}

/* Cashback Percent - More prominent */
.reward-percent {
    font-weight: 700;
    font-size: 1.1rem;
    font-variant-numeric: tabular-nums;
    padding: 6px 14px;
    border-radius: 8px;
    min-width: 52px;
    text-align: center;
}

.percent-5 { 
    color: var(--green); 
    background: rgba(74, 222, 128, 0.15);
}
.percent-3 { 
    color: var(--amber); 
    background: rgba(251, 191, 36, 0.15);
}
.percent-2 { 
    color: var(--accent); 
    background: rgba(99, 102, 241, 0.15);
}
.percent-1 { 
    color: var(--text-3);
    background: rgba(255, 255, 255, 0.05);
}

.base-reward {
    color: var(--text-3);
    font-size: 0.85rem;
    margin-top: 12px;
    padding-left: 4px;
}

/* Highlight for best match */
.credit-card.highlight {
    border-color: rgba(74, 222, 128, 0.5);
    box-shadow: 
        0 0 0 1px rgba(74, 222, 128, 0.2),
        0 20px 40px rgba(74, 222, 128, 0.1);
}

.credit-card.highlight .matched-reward {
    background: rgba(74, 222, 128, 0.15);
}

.credit-card .matched-reward .category-tag {
    background: rgba(74, 222, 128, 0.25);
    color: var(--green);
}

/* Best Card Badge */
.best-card-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(74, 222, 128, 0.15);
    color: var(--green);
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Rotating Badge */
.rotating-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: rgba(251, 191, 36, 0.15);
    color: var(--amber);
    border-radius: 5px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.rotating-badge svg {
    width: 10px;
    height: 10px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-3);
    grid-column: 1 / -1;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    opacity: 0.4;
}

.empty-state h3 {
    color: var(--text-2);
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 1rem;
}

.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-3);
    font-size: 1rem;
    grid-column: 1 / -1;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-3);
    cursor: pointer;
    padding: 6px 10px;
    font-size: 1.25rem;
}

.close-btn:hover {
    color: var(--text);
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.95rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

/* Rewards Form */
.rewards-form {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.rewards-form h4 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 14px;
}

.reward-input-row {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    align-items: center;
}

.reward-input-row input[type="text"] {
    flex: 1;
    padding: 10px 12px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
}

.reward-input-row input[type="number"] {
    width: 70px;
    padding: 10px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    text-align: center;
}

.reward-input-row input:focus {
    outline: none;
    border-color: var(--accent);
}

.remove-reward-btn {
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-3);
    cursor: pointer;
    font-size: 1rem;
}

.remove-reward-btn:hover {
    border-color: var(--red);
    color: var(--red);
}

.rotating-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
}

.rotating-checkbox input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

.rotating-checkbox label {
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.add-reward-btn {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: 8px;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.85rem;
    cursor: pointer;
    margin-top: 10px;
}

.add-reward-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.modal-footer {
    display: flex;
    gap: 10px;
    padding: 20px 24px;
    border-top: 1px solid var(--border);
}

.modal-footer button {
    flex: 1;
    padding: 12px;
    border-radius: 10px;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
}

.cancel-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-2);
}

.cancel-btn:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

.save-btn {
    background: var(--accent);
    border: none;
    color: white;
}

.save-btn:hover {
    background: var(--accent-hover);
}

/* Color Picker */
.color-picker {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.color-option {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.15s;
}

.color-option:hover {
    transform: scale(1.15);
}

.color-option.selected {
    border-color: white;
}

/* Settings */
.settings-content {
    padding: 24px;
}

.settings-section {
    margin-bottom: 24px;
}

.settings-section h4 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 10px;
}

.settings-section p {
    color: var(--text-3);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.data-actions {
    display: flex;
    gap: 10px;
}

.data-btn {
    flex: 1;
    padding: 10px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-2);
    font-family: var(--font);
    font-size: 0.85rem;
    cursor: pointer;
}

.data-btn:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

#importInput {
    display: none;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 20px;
    color: var(--text);
    font-size: 0.9rem;
    z-index: 200;
    opacity: 0;
    transition: all 0.2s;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success { border-color: rgba(74, 222, 128, 0.4); }
.toast.error { border-color: rgba(248, 113, 113, 0.4); }

.kbd {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-family: monospace;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-3);
    margin-left: 6px;
}

/* Autocomplete */
.category-input-wrapper {
    position: relative;
    flex: 1;
}

.category-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-top: 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 50;
    display: none;
}

.category-suggestions.active {
    display: block;
}

.suggestion-item {
    padding: 10px 14px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-2);
    display: flex;
    align-items: center;
    gap: 10px;
}

.suggestion-item:hover,
.suggestion-item.highlighted {
    background: var(--bg-card-hover);
    color: var(--text);
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: white;
    padding: 10px 16px;
    z-index: 1000;
    text-decoration: none;
    font-size: 0.875rem;
}

.skip-link:focus { top: 0; }

button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
        padding: 24px 20px;
    }
    .main {
        margin-left: 240px;
        padding: 24px;
    }
}

@media (max-width: 768px) {
    .app {
        flex-direction: column;
    }
    .sidebar {
        position: relative;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 20px;
    }
    .sidebar-actions {
        flex-direction: row;
        margin-top: 20px;
    }
    .add-btn, .settings-btn {
        flex: 1;
    }
    .main {
        margin-left: 0;
        padding: 20px;
    }
    .cards-grid {
        grid-template-columns: 1fr;
    }
    .top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* Merchant Category Picker */
.merchant-category-picker {
    grid-column: 1 / -1;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 20px;
}

.merchant-picker-label {
    font-size: 0.9rem;
    color: var(--text-2);
    margin-bottom: 12px;
}

.merchant-picker-label .merchant-name,
.merchant-recognized .merchant-name {
    color: var(--text);
    font-weight: 600;
}

.merchant-category-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.merchant-category-btn {
    padding: 8px 16px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-2);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.merchant-category-btn:hover {
    border-color: var(--accent);
    color: var(--text);
    background: rgba(99, 102, 241, 0.1);
}

.merchant-category-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* Merchant Recognized Indicator */
.merchant-recognized {
    grid-column: 1 / -1;
    padding: 10px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.85rem;
    color: var(--text-2);
}