/* ===============================================
   Cards CSS
   =============================================== */

.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color-light);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    margin-bottom: var(--spacing-lg);
}
.card:hover {
    box-shadow: var(--shadow-md);
}

/* Card Header used across Dashboard pages */
.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}
.card-header h1, 
.card-header h2 { 
    font-size: var(--fs-xl); 
    font-weight: 700; 
    margin: 0;
    color: var(--text-primary);
}

/* ===============================================
   Stat Cards (Dashboard, Analytics, Wallet)
   =============================================== */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card { 
    padding: var(--spacing-lg); 
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.stat-card h3 { 
    color: var(--text-muted); 
    font-size: var(--fs-sm); 
    font-weight: 500; 
    margin-bottom: var(--spacing-md); 
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.stat-value { 
    font-size: var(--fs-2xl); 
    font-weight: 700; 
    margin-bottom: var(--spacing-xs); 
    color: var(--text-primary);
}

/* ===============================================
   Filter Bar (Campaigns, Analytics)
   =============================================== */
.filter-bar {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}
.filter-btn {
    background: var(--bg-input);
    border: 1px solid var(--border-color-light);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}
.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.filter-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* ===============================================
   Create Ad Preview Area
   =============================================== */
.ad-preview-container {
    padding: var(--spacing-lg);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    text-align: center;
    color: var(--text-muted);
    min-height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.ad-preview-container img,
.ad-preview-container video {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}
.ad-preview-container h4 {
    margin: 5px 0;
    font-size: 16px;
    color: var(--text-primary);
}
.ad-preview-container p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

/* ===============================================
   Settings - Danger Zone
   =============================================== */
.danger-zone {
    border: 1px solid var(--color-danger);
}
.danger-zone h2 {
    color: var(--color-danger);
}

/* ===============================================
   MOBILE APP DASHBOARD OPTIMIZATION
   Polished, lightweight native-app feel
   =============================================== */

/* Base Mobile Tap Highlight & Selection Removal */
.stat-card,
.btn,
.filter-btn,
.nav-link,
.quick-action-btn {
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Accessibility Focus */
.btn:focus-visible,
.stat-card:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    /* Base Card Polish */
    .card {
        border-radius: 14px !important;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04) !important;
        padding: 14px !important;
        margin-bottom: 14px !important;
    }

    /* Stats Grid: Strict 2 columns on mobile */
    .summary-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 10px !important;
        margin-bottom: 16px !important;
    }

    /* Stat Card Compactness */
    .stat-card {
        padding: 12px !important;
        border-radius: 14px !important;
        transition: transform 0.15s ease, box-shadow 0.15s ease !important;
    }

    /* Touch Feedback (Scale down slightly when pressed) */
    .stat-card:active,
    .btn:active,
    .filter-btn:active {
        transform: scale(0.985) !important;
    }

    /* Only apply hover effects on devices that actually support hover (Desktop) */
    @media (hover: hover) {
        .stat-card:hover,
        .card:hover {
            transform: translateY(-2px) !important;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06) !important;
        }
    }

    /* Stat Card Internals */
    .stat-card h3 {
        font-size: 11px !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        margin-bottom: 6px !important;
    }

    /* Responsive Numbers (Prevent Overflow) */
    .stat-value {
        font-size: clamp(16px, 4.5vw, 20px) !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        letter-spacing: -0.5px !important;
    }

    /* Card Headers */
    .card-header {
        padding: 14px !important;
    }
    .card-header h1, 
    .card-header h2 {
        font-size: 18px !important;
    }

    /* Filter Bar Horizontal Scroll */
    .filter-bar {
        gap: 8px !important;
        margin-bottom: 14px !important;
        overflow-x: auto;
        flex-wrap: nowrap !important;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
    .filter-btn {
        flex-shrink: 0;
        padding: 6px 12px !important;
        font-size: 13px !important;
    }
}

/* Ultra-Small Screen Adjustments (Below 360px) */
@media (max-width: 360px) {
    .summary-cards {
        gap: 8px !important;
    }
    .stat-card {
        padding: 10px !important;
    }
    .stat-card h3 {
        font-size: 10px !important;
    }
    /* Allow numbers to shrink slightly more if needed */
    .stat-value {
        font-size: 15px !important;
    }
}

/* Mobile Safe Area & Bottom Nav Spacing */
@media (max-width: 768px) {
    .main-content {
        padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px)) !important;
    }
}