/* ============================================================
   Subscription Cost Tracker — Styles
   Finance app dark mode, banking dashboard aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #E74C3C;
    --primary-light: #FF6B6B;
    --secondary: #2ECC71;
    --accent: #3498DB;
    --bg: #0F0F1A;
    --bg-elevated: #1A1A2E;
    --bg-surface: #252540;
    --bg-card: #1E1E36;
    --bg-hover: #2D2D4A;
    --text-primary: #F0F0F8;
    --text-secondary: #9090B0;
    --text-muted: #606080;
    --border: #30304A;
    --success: #2ECC71;
    --warning: #F39C12;
    --danger: #E74C3C;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, .3);
    --transition: 200ms ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    font-size: 16px;
}

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

.app {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 80px;
}

.header {
    text-align: center;
    padding: 28px 0 20px;
}

.header-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 8px;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    color: var(--text-secondary);
    font-size: .9rem;
    margin-top: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn:active {
    transform: scale(.97);
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 700;
}

.btn-primary:hover {
    background: var(--primary-light);
}

.btn-sm {
    padding: 6px 12px;
    font-size: .8rem;
}

.btn-danger {
    background: rgba(231, 76, 60, .1);
    border-color: var(--danger);
    color: var(--danger);
}

.btn-success {
    background: rgba(46, 204, 113, .1);
    border-color: var(--secondary);
    color: var(--secondary);
}

.toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    flex: 1;
    min-width: 180px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .85rem;
    outline: none;
}

.search-input:focus {
    border-color: var(--accent);
}

/* --- Burn Rate Cards --- */
.burn-rate {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.burn-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.burn-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.burn-card.monthly::before {
    background: var(--primary);
}

.burn-card.yearly::before {
    background: var(--accent);
}

.burn-card.count::before {
    background: var(--secondary);
}

.burn-card.waste::before {
    background: var(--warning);
}

.burn-value {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
}

.burn-label {
    font-size: .7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-top: 4px;
}

/* --- Category Breakdown --- */
.categories-bar {
    display: flex;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 20px;
    background: var(--bg-surface);
}

.cat-segment {
    transition: width var(--transition);
}

.cat-legend {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    font-size: .8rem;
}

.cat-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.cat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* --- Subscription List --- */
.sub-list {
    margin-bottom: 20px;
}

.sub-item {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.sub-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: var(--bg-surface);
}

.sub-info {}

.sub-name {
    font-weight: 700;
    font-size: .9rem;
}

.sub-category {
    font-size: .75rem;
    color: var(--text-muted);
}

.sub-cost {
    font-weight: 800;
    font-size: 1rem;
    text-align: right;
}

.sub-cycle {
    font-size: .7rem;
    color: var(--text-muted);
    text-align: right;
}

.sub-renewal {
    font-size: .75rem;
    color: var(--text-secondary);
    text-align: right;
}

.sub-actions {
    display: flex;
    gap: 4px;
}

.sub-actions button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .9rem;
    padding: 4px;
    transition: color var(--transition);
}

.sub-actions button:hover {
    color: var(--text-primary);
}

/* --- Chart --- */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 20px;
}

.chart-title {
    font-weight: 700;
    font-size: .9rem;
    margin-bottom: 10px;
}

.chart-canvas {
    width: 100%;
    height: 140px;
}

/* --- Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

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

.modal {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 90%;
    max-width: 480px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 24px;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.modal-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .85rem;
    outline: none;
    margin-bottom: 10px;
}

.modal-input:focus {
    border-color: var(--accent);
}

.modal-label {
    font-size: .8rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 2px;
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-size: .85rem;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 200;
}

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

@media (max-width: 768px) {
    .sub-item {
        grid-template-columns: auto 1fr auto;
    }

    .sub-renewal,
    .sub-cycle {
        display: none;
    }

    .burn-rate {
        grid-template-columns: 1fr 1fr;
    }
}

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