/* ===================================================================
   GOAT FLIX - Apple Liquid Glass Theme
   Frosted glass + soft glow + fluid animations
   =================================================================== */

:root {
    --glass-bg: rgba(255,255,255,0.03);
    --glass-bg-hover: rgba(255,255,255,0.06);
    --glass-bg-active: rgba(255,255,255,0.02);
    --glass-border: rgba(255,255,255,0.06);
    --glass-border-hover: rgba(255,255,255,0.12);
    --glass-blur: blur(20px) saturate(180%);
    --glass-blur-light: blur(10px) saturate(150%);
    --glow-primary: rgba(123,92,255,0.25);
    --glow-soft: rgba(123,92,255,0.10);
    --glow-spread: 0 0 30px var(--glow-primary);
    --glow-spread-hover: 0 0 50px var(--glow-primary);
    --glass-radius: 14px;
    --glass-radius-sm: 10px;
    --glass-transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    --spring-out: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---- BASE GLASS SURFACE ---- */
.glass,
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    transition: all var(--glass-transition);
    will-change: transform;
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px var(--glass-border-hover);
}

.glass-card:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* ---- GLOWING BUTTON ---- */
.glass-btn {
    position: relative;
    background: linear-gradient(135deg, rgba(123,92,255,0.15), rgba(90,63,212,0.08));
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid rgba(123,92,255,0.2);
    border-radius: var(--glass-radius-sm);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 12px 24px;
    cursor: pointer;
    transition: all var(--spring-out);
    will-change: transform, box-shadow;
    overflow: hidden;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
    text-decoration: none;
}

.glass-btn::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(123,92,255,0.4), transparent 50%, rgba(123,92,255,0.15));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    pointer-events: none;
}

.glass-btn:hover {
    background: linear-gradient(135deg, rgba(123,92,255,0.25), rgba(90,63,212,0.15));
    border-color: rgba(123,92,255,0.4);
    transform: translateY(-1px) scale(1.02);
    box-shadow: var(--glow-spread);
}

.glass-btn:hover::after {
    opacity: 1;
}

.glass-btn:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
    box-shadow: 0 0 15px var(--glow-primary);
}

.glass-btn-primary {
    background: linear-gradient(135deg, #7b5cff, #5a3fd4);
    border-color: rgba(123,92,255,0.5);
    box-shadow: 0 4px 20px rgba(123,92,255,0.2);
}

.glass-btn-primary:hover {
    background: linear-gradient(135deg, #8b6cff, #6a4fe4);
    box-shadow: var(--glow-spread-hover);
}

/* ---- GLOW PULSE ANIMATION ---- */
@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 20px var(--glow-primary), 0 0 40px var(--glow-soft); }
    50% { box-shadow: 0 0 35px var(--glow-primary), 0 0 60px var(--glow-soft); }
}

.glass-btn-glow {
    animation: glow-pulse 3s ease-in-out infinite;
}

/* ---- GLASS INPUT / SEARCH ---- */
.glass-input {
    background: rgba(255,255,255,0.04);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 8px 16px;
    color: #fff;
    font-size: 0.9rem;
    transition: all var(--glass-transition);
    outline: none;
    min-height: 44px;
}

.glass-input:focus {
    border-color: rgba(123,92,255,0.3);
    box-shadow: 0 0 20px var(--glow-soft);
    background: rgba(255,255,255,0.06);
}

.glass-input::placeholder {
    color: rgba(255,255,255,0.3);
}

/* ---- GLASS PANEL / MODAL ---- */
.glass-panel {
    background: rgba(16,16,26,0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

/* ---- GLASS BADGE / PILL ---- */
.glass-badge {
    background: rgba(123,92,255,0.12);
    border: 1px solid rgba(123,92,255,0.2);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    color: #b8a4ff;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ---- GLASS DIVIDER ---- */
.glass-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* ---- GLASS TAB ---- */
.glass-tab {
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--glass-radius-sm);
    padding: 10px 20px;
    color: var(--text-muted, #888);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--glass-transition);
    min-height: 44px;
}

.glass-tab:hover {
    background: var(--glass-bg);
    color: #fff;
}

.glass-tab.active {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    color: #fff;
    box-shadow: 0 4px 15px rgba(123,92,255,0.1);
}

/* ---- GLASS OVERLAY (backdrop) ---- */
.glass-overlay {
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* ---- MICRO INTERACTIONS ---- */
@media (hover: hover) {
    .glass-hover-lift:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 0 1px var(--glass-border-hover);
    }
}

/* ---- REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce) {
    .glass-btn,
    .glass-card,
    .glass-btn::after {
        transition: none !important;
        animation: none !important;
    }
    .glass-btn-glow {
        animation: none !important;
    }
}