/* ══════════════ CARDS ══════════════ */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 24px;
    min-width: 0;
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

/* Graceful layout for 5 cards to fit 5 in a row on tablets/desktops */
@media (min-width: 861px) {
    .summary-cards.grid-count-5 {
        grid-template-columns: repeat(5, 1fr);
        gap: 14px;
    }
    .summary-cards.grid-count-5 .summary-card {
        padding: 16px 14px;
    }
    .summary-cards.grid-count-5 .summary-card .card-value {
        font-size: clamp(1.1rem, 2vw, 1.45rem);
    }
    .summary-cards.grid-count-5 .summary-card .card-label {
        font-size: clamp(0.65rem, 1vw, 0.75rem);
    }
}

.summary-card {
    position: relative;
    overflow: hidden;
}

.summary-card::after {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    opacity: 0.12;
    filter: blur(40px);
}

.card-income::after {
    background: var(--green);
}

.card-expense::after {
    background: var(--red);
}

.card-balance::after {
    background: var(--accent);
}

.card-daily-avg::after {
    background: var(--accent);
}

.card-count::after {
    background: var(--amber);
}

.card-income-total::after {
    background: var(--cyan);
}

.card-investment::after {
    background: var(--purple);
}

.card-transfer::after {
    background: var(--text-muted);
}

.card-label {
    font-size: clamp(0.7rem, 1.5vw, 0.82rem);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.card-value {
    font-size: clamp(1.25rem, 2.5vw, 1.65rem);
    font-weight: 800;
    word-break: break-word;
    overflow-wrap: break-word;
}

.card-income .card-value {
    color: var(--green);
}

.card-expense .card-value {
    color: var(--red);
}

.card-balance .card-value {
    color: var(--accent);
}

.card-daily-avg .card-value {
    color: var(--accent);
}

.card-count .card-value {
    color: var(--amber);
}

.card-income-total .card-value {
    color: var(--cyan);
}

.card-investment .card-value {
    color: var(--purple);
}

.card-transfer .card-value {
    color: var(--text-muted);
}

/* ══════════════ CHART CARDS ══════════════ */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.chart-grid-full {
    grid-template-columns: 1fr;
}

.chart-card {
    padding: 20px 24px 16px;
}

.chart-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.chart-wrap {
    position: relative;
    height: 280px;
}

.chart-wrap-lg {
    height: 340px;
}

.chart-wrap:fullscreen, .chart-wrap:-webkit-full-screen, .chart-wrap.is-fullscreen {
    background: var(--bg-body);
    padding: 40px 20px 20px 20px;
    height: 100vh !important;
    width: 100vw !important;
}

.chart-fullscreen-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    background: rgba(18, 22, 32, 0.65);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-secondary);
    cursor: pointer;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), opacity var(--transition);
    opacity: 0.65;
}

.chart-wrap:hover .chart-fullscreen-btn,
.chart-fullscreen-btn:focus,
.chart-fullscreen-btn:hover {
    opacity: 1;
}

.chart-fullscreen-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    border-color: var(--border);
    transform: scale(1.05);
}

.chart-fullscreen-btn:active {
    transform: scale(0.95);
}

/* Strictly hide on mobile/tablet viewports and Android app */
@media (max-width: 768px) {
    .chart-fullscreen-btn {
        display: none !important;
    }
}

body.is-android .chart-fullscreen-btn {
    display: none !important;
}

#card-category-trend {
    grid-column: 1 / -1;
}

/* Custom grid layouts for Trends based on time mode */
@media (min-width: 1024px) {
    #trends-grid[data-mode="all"] { grid-template-columns: repeat(2, 1fr); }
    #trends-grid[data-mode="year"] { grid-template-columns: repeat(2, 1fr); }
    #trends-grid[data-mode="year"] #card-yearly-trend { grid-column: 1 / -1; }
    #trends-grid[data-mode="year"] #card-daily-trend  { grid-column: 1 / -1; }
    #trends-grid[data-mode="month"] { grid-template-columns: repeat(2, 1fr); }
    #trends-grid[data-mode="week"] { grid-template-columns: repeat(2, 1fr); }
}