/* ═══════════════════════════════════════════════════════════════════════════
   GLASSMORPHISM COMPONENT LIBRARY
   Frosted glass surfaces, translucent cards, pill badges, and glass overlays.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Glass Card (Default) ─────────────────────────────────────────────────── */
.glass-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    box-shadow:
        0 8px 32px rgba(15, 23, 42, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* Light variant */
.glass-card--light {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.8);
}

/* Dark variant */
.glass-card--dark {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* Large card with stronger blur */
.glass-card--lg {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--radius-2xl);
    box-shadow:
        0 12px 40px rgba(15, 23, 42, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* Elevated glass (hover state often) */
.glass-card--elevated {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    box-shadow:
        0 20px 40px rgba(15, 23, 42, 0.1),
        0 4px 12px rgba(15, 23, 42, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* Interactive glass card with hover lift */
.glass-card--interactive {
    transition:
        transform var(--duration-base) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out),
        background var(--duration-base) var(--ease-out);
    cursor: pointer;
}

.glass-card--interactive:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow:
        0 20px 40px rgba(15, 23, 42, 0.1),
        0 4px 12px rgba(15, 23, 42, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

/* Glass with gradient border */
.glass-card--gradient-border {
    position: relative;
    border: none;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
}

.glass-card--gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.3), rgba(6, 182, 212, 0.3));
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Glass with glow effect */
.glass-card--glow {
    box-shadow:
        0 8px 32px rgba(15, 23, 42, 0.06),
        0 0 60px rgba(79, 70, 229, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.glass-card--glow:hover {
    box-shadow:
        0 12px 40px rgba(15, 23, 42, 0.08),
        0 0 80px rgba(79, 70, 229, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}


/* ── Glass Pill (Badge / Label) ───────────────────────────────────────────── */
.glass-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.glass-pill--dark {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
}

.glass-pill--success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--color-success);
}


/* ── Glass Surface (Background Panels) ────────────────────────────────────── */
.glass-surface {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.glass-surface--frosted {
    background: rgba(248, 250, 252, 0.6);
    backdrop-filter: blur(24px) saturate(200%);
    -webkit-backdrop-filter: blur(24px) saturate(200%);
    border-color: rgba(255, 255, 255, 0.6);
}


/* ── Glass Input ──────────────────────────────────────────────────────────── */
.glass-input {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    transition:
        border-color var(--duration-fast) var(--ease-out),
        background var(--duration-fast) var(--ease-out);
}

.glass-input:focus {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
}


/* ── Glass Button ─────────────────────────────────────────────────────────── */
.glass-btn {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    padding: var(--space-3) var(--space-6);
    font-weight: 600;
    color: var(--text-inverse);
    cursor: pointer;
    transition:
        background var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}


/* ── Glass Overlay ────────────────────────────────────────────────────────── */
.glass-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 998;
}


/* ── Noise Texture (Subtle grain for glass surfaces) ──────────────────────── */
.glass-noise::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0.015;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    pointer-events: none;
}


/* ── Reduced Motion ───────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .glass-card--interactive {
        transition: none;
    }
    .glass-card--interactive:hover {
        transform: none;
    }
}

/* ── Fallback for no Backdrop Filter ──────────────────────────────────────── */
@supports not (backdrop-filter: blur(1px)) {
    .glass-card,
    .glass-pill,
    .glass-surface,
    .glass-input,
    .glass-btn {
        background: rgba(255, 255, 255, 0.95);
    }
    .glass-card--dark {
        background: rgba(15, 23, 42, 0.95);
    }
}