/* ============================================
   CUEBES - Liquid Glass Components
   Apple WWDC 2025 Inspired Design System
   ============================================ */

/* ============================================
   Base Glass Card
   ============================================ */

.glass {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

/* Allow overflow for elements that need dropdowns to extend beyond */
.glass.glass--overflow,
.main-header.glass {
    overflow: visible;
}

/* Gradient border using mask-composite */
.glass::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.4) 0%,
        rgba(255, 255, 255, 0.15) 40%,
        rgba(255, 255, 255, 0.05) 100%
    );
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Specular highlight (top edge) */
.glass::after {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--specular-top) 50%,
        transparent 100%
    );
    pointer-events: none;
}

/* Shadow for depth */
.glass {
    box-shadow:
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 var(--specular-subtle),
        inset 0 -1px 0 rgba(0, 0, 0, 0.05);
}

/* Hover state */
.glass:hover {
    background: var(--glass-bg-hover);
}

.glass.glass--interactive:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 40px var(--glass-shadow-heavy),
        inset 0 1px 0 var(--specular-subtle);
}

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

.glass--subtle {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px) saturate(150%);
}

.glass--solid {
    background: rgba(255, 255, 255, 0.12);
}

.glass--heavy {
    backdrop-filter: blur(var(--glass-blur-heavy)) saturate(200%);
}

.glass--no-border::before {
    display: none;
}

.glass--sm {
    border-radius: var(--radius-md);
}

.glass--lg {
    border-radius: var(--radius-2xl);
}

.glass--pill {
    border-radius: var(--radius-full);
}

/* ============================================
   Liquid Shimmer Effect
   ============================================ */

.glass--shimmer {
    overflow: hidden;
}

.glass--shimmer .shimmer-layer {
    position: absolute;
    inset: -50%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.06) 0%, transparent 40%);
    animation: liquidShimmer 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes liquidShimmer {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(1deg); }
    50% { transform: translate(0, 4%) rotate(0deg); }
    75% { transform: translate(-2%, 2%) rotate(-1deg); }
}

/* ============================================
   Glass Card Content
   ============================================ */

.glass-content {
    position: relative;
    z-index: 1;
    padding: var(--space-lg);
}

.glass-content--sm {
    padding: var(--space-md);
}

.glass-content--lg {
    padding: var(--space-xl);
}

/* ============================================
   Glass Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary Button - Gradient */
.btn--primary {
    background: linear-gradient(135deg, var(--cuebes-primary), var(--cuebes-secondary));
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn--primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn--primary:active:not(:disabled) {
    transform: translateY(0);
}

/* Secondary Button - Glass */
.btn--secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn--secondary:hover:not(:disabled) {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-light);
}

/* Ghost Button */
.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn--ghost:hover:not(:disabled) {
    background: var(--glass-bg);
    color: var(--text-primary);
}

/* Danger Button */
.btn--danger {
    background: linear-gradient(135deg, var(--error), #dc2626);
    color: white;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.4);
}

/* Button Sizes */
.btn--sm {
    padding: 8px 16px;
    font-size: var(--text-xs);
}

.btn--lg {
    padding: 16px 32px;
    font-size: var(--text-base);
}

/* Icon Button */
.btn--icon {
    padding: 12px;
    border-radius: var(--radius-lg);
}

.btn--icon.btn--sm {
    padding: 8px;
}

.btn--icon svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Glass Inputs
   ============================================ */

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.input-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.input {
    width: 100%;
    padding: 14px 18px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.input::placeholder {
    color: var(--text-muted);
}

.input:hover {
    border-color: var(--glass-border);
}

.input:focus {
    outline: none;
    border-color: var(--cuebes-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.input--error {
    border-color: var(--error);
}

.input--error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.input-error-text {
    font-size: var(--text-sm);
    color: var(--error);
}

/* Input with icon */
.input-wrapper {
    position: relative;
}

.input-wrapper .input {
    padding-left: 48px;
}

.input-wrapper .input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

/* ============================================
   Glass Avatar
   ============================================ */

.avatar {
    position: relative;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cuebes-primary), var(--cuebes-accent));
    overflow: hidden;
    flex-shrink: 0;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar--sm { width: 32px; height: 32px; }
.avatar--lg { width: 64px; height: 64px; }
.avatar--xl { width: 96px; height: 96px; }

.avatar--ring {
    padding: 3px;
    background: linear-gradient(135deg, var(--cuebes-primary), var(--cuebes-secondary));
}

.avatar--ring::before {
    content: '';
    position: absolute;
    inset: 3px;
    border-radius: 50%;
    background: var(--bg-primary);
}

.avatar--ring img {
    position: relative;
    z-index: 1;
    border-radius: 50%;
}

/* Online status indicator */
.avatar-status {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.avatar-status--online { background: var(--success); }
.avatar-status--offline { background: var(--text-muted); }
.avatar-status--busy { background: var(--error); }

/* ============================================
   Glass Badge
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 10px;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    color: var(--text-secondary);
}

.badge--primary {
    background: rgba(99, 102, 241, 0.2);
    color: var(--cuebes-primary-light);
}

.badge--secondary {
    background: rgba(6, 182, 212, 0.2);
    color: var(--cuebes-secondary-light);
}

.badge--accent {
    background: rgba(244, 114, 182, 0.2);
    color: var(--cuebes-accent-light);
}

.badge--success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.badge--verified {
    background: linear-gradient(135deg, var(--cuebes-primary), var(--cuebes-secondary));
    color: white;
}

/* ============================================
   Glass Divider
   ============================================ */

.divider {
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--glass-border),
        transparent
    );
    margin: var(--space-lg) 0;
}

.divider--vertical {
    width: 1px;
    height: auto;
    background: linear-gradient(
        180deg,
        transparent,
        var(--glass-border),
        transparent
    );
    margin: 0 var(--space-lg);
}

/* ============================================
   Glass Skeleton Loading
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--glass-bg) 0%,
        var(--glass-bg-hover) 50%,
        var(--glass-bg) 100%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeletonShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton--text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton--avatar {
    border-radius: 50%;
}

/* ============================================
   Glass Toast / Notification
   ============================================ */

.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-toast);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg-active);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px var(--glass-shadow-heavy);
    animation: toastSlideIn 0.3s var(--transition-spring);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast--success { border-left: 3px solid var(--success); }
.toast--error { border-left: 3px solid var(--error); }
.toast--warning { border-left: 3px solid var(--warning); }
.toast--info { border-left: 3px solid var(--info); }

/* ============================================
   Glass Modal
   ============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-spring);
}

.modal-overlay.is-open .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--glass-border-subtle);
    margin-bottom: var(--space-lg);
}

.modal-title {
    font-size: var(--text-xl);
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
}

/* ============================================
   Glass Dropdown
   ============================================ */

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-sm);
    min-width: 200px;
    padding: var(--space-sm);
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px var(--glass-shadow-heavy);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: var(--z-modal); /* Higher z-index to appear above sticky elements */
}

.dropdown.is-open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 10px 14px;
    font-size: var(--text-sm);
    font-family: inherit;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    text-align: left;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.dropdown-item--danger {
    color: rgba(255, 255, 255, 0.9);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.08));
    border: 1px solid rgba(239, 68, 68, 0.2);
    margin-top: var(--space-xs);
}

.dropdown-item--danger:hover {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(239, 68, 68, 0.15));
    border-color: rgba(239, 68, 68, 0.35);
    color: #fff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.dropdown-item--danger svg {
    color: var(--error);
}

.dropdown-divider {
    height: 1px;
    background: var(--glass-border-subtle);
    margin: var(--space-sm) 0;
}

/* ============================================
   Glow Effects
   ============================================ */

.glow-primary {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.3);
}

.glow-secondary {
    box-shadow: 0 0 40px rgba(6, 182, 212, 0.3);
}

.glow-accent {
    box-shadow: 0 0 40px rgba(244, 114, 182, 0.3);
}

/* Animated glow pulse */
.glow-pulse {
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
    }
}

/* ============================================
   Refraction Effect (Advanced Liquid Glass)
   ============================================ */

.glass--refraction {
    position: relative;
}

.glass--refraction::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(
            ellipse 60% 40% at 20% 20%,
            rgba(255, 255, 255, 0.15) 0%,
            transparent 60%
        ),
        radial-gradient(
            ellipse 40% 30% at 80% 80%,
            rgba(99, 102, 241, 0.1) 0%,
            transparent 50%
        );
    pointer-events: none;
    border-radius: inherit;
}

/* ============================================
   Loading Overlay
   ============================================ */

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.loading-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--cuebes-primary);
    border-radius: 50%;
    animation: loadingSpin 0.8s linear infinite;
}

@keyframes loadingSpin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   Responsive Adjustments
   ============================================ */

@media (max-width: 768px) {
    .glass-content {
        padding: var(--space-md);
    }

    .btn {
        padding: 10px 20px;
    }

    .modal {
        max-width: 100%;
        margin: var(--space-md);
    }

    .toast {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
    }
}