/**
 * Liquid Glass Card Styles - Apple-inspired glass morphism
 *
 * Features:
 * - Frosted glass backdrop effect with blur
 * - Smooth animations and transitions
 * - Starlink blue accent colors
 * - Multiple card variants
 * - Responsive design
 *
 * @author StanShare Phase 2
 * @version 1.0.0
 */

/* ===== Base Card Styles ===== */
.liquid-glass-card {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, box-shadow, border-color;
}

/* Chart cards need visible overflow for legends */
.liquid-glass-card.chart-card {
    overflow: visible;
}

/* ===== Card Variants ===== */

/* Default variant - subtle glass effect */
.liquid-glass-card--default {
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.1),
        rgba(255, 255, 255, 0.05)
    );
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.37),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Elevated variant - more prominent */
.liquid-glass-card--elevated {
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.15),
        rgba(255, 255, 255, 0.08)
    );
    box-shadow:
        0 12px 48px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Interactive variant - blue-tinted for clickable cards */
.liquid-glass-card--interactive {
    background: linear-gradient(
        135deg,
        rgba(0, 102, 255, 0.2),
        rgba(0, 102, 255, 0.05)
    );
    box-shadow:
        0 8px 32px rgba(0, 102, 255, 0.2),
        inset 0 1px 0 rgba(0, 212, 255, 0.2);
}

/* ===== Hover Effects ===== */
.liquid-glass-card--hover {
    cursor: pointer;
}

.liquid-glass-card--hover:hover {
    border-color: rgba(0, 102, 255, 0.3);
    box-shadow:
        0 12px 48px rgba(0, 102, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.liquid-glass-card--hover:active {
    transform: translateY(0);
}

/* Glow effect variant */
.liquid-glass-card--glow:hover {
    box-shadow:
        0 12px 48px rgba(0, 102, 255, 0.3),
        0 0 80px rgba(0, 102, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* ===== Card Internal Structure ===== */

/* Top highlight bar (mimics Apple design) */
.liquid-glass-card__highlight {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3) 50%,
        transparent
    );
    pointer-events: none;
    z-index: 2;
}

/* Content wrapper */
.liquid-glass-card__content {
    position: relative;
    z-index: 1;
    padding: 24px;
    color: #ffffff;
}

/* ===== Grid System ===== */
.liquid-glass-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ===== Metric Card Styles ===== */
.metric-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
}

.metric-card__icon {
    font-size: 32px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.metric-card__label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 10px;
}

.metric-card__value {
    font-size: 48px;
    font-weight: 700;
    color: #00d4ff;
    line-height: 1;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.metric-card__subtitle {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .liquid-glass-card__content {
        padding: 16px;
    }

    .metric-card__value {
        font-size: 36px;
    }

    .liquid-glass-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .liquid-glass-card {
        border-radius: 16px;
    }

    .metric-card__value {
        font-size: 32px;
    }
}

/* ===== Loading State ===== */
.liquid-glass-card--loading {
    opacity: 0.6;
    pointer-events: none;
}

.liquid-glass-card--loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    to {
        left: 100%;
    }
}

/* ===== Accessibility ===== */
.liquid-glass-card:focus-visible {
    outline: 2px solid #00d4ff;
    outline-offset: 4px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .liquid-glass-card,
    .liquid-glass-card--hover:hover {
        transition: none;
        transform: none;
    }

    .liquid-glass-card--loading::after {
        animation: none;
    }
}

/* ===== Dark Theme Optimization ===== */
@media (prefers-color-scheme: dark) {
    .liquid-glass-card {
        background: linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.12),
            rgba(255, 255, 255, 0.06)
        );
    }
}