/* Glassmorphic Design System */

:root {
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-backdrop: blur(10px);

    --glass-dark-bg: rgba(0, 0, 0, 0.25);
    --glass-dark-border: rgba(255, 255, 255, 0.1);
    --glass-dark-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);

    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}

/* Glass Morphism Base Classes */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-dark {
    background: var(--glass-dark-bg);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border-radius: 16px;
    border: 1px solid var(--glass-dark-border);
    box-shadow: var(--glass-dark-shadow);
}

.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    transition: all 0.3s ease;
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    transform: translateY(-2px);
}

/* Glass Header */
.glass-header {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Glass Footer */
.glass-footer {
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Glass Button */
.glass-button {
    background: rgba(102, 126, 234, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.4);
    box-shadow: 0 4px 15px 0 rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    color: #fff;
    font-weight: 600;
}

.glass-button:hover {
    background: rgba(102, 126, 234, 0.5);
    box-shadow: 0 6px 20px 0 rgba(102, 126, 234, 0.4);
    transform: translateY(-2px);
}

.glass-button:active {
    transform: translateY(0);
}

/* Glass Input */
.glass-input {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 16px;
    transition: all 0.3s ease;
    color: #1f2937;
}

.glass-input:focus {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(102, 126, 234, 0.5);
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.glass-input::placeholder {
    color: rgba(31, 41, 55, 0.5);
}

/* Glass Navigation */
.glass-nav {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-nav-item {
    padding: 10px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    color: #374151;
    font-weight: 500;
}

.glass-nav-item:hover {
    background: rgba(102, 126, 234, 0.15);
    color: #667eea;
}

.glass-nav-item.active {
    background: rgba(102, 126, 234, 0.25);
    color: #667eea;
}

.header-nav-item {
    padding: 10px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    color: #ffffff;
    font-weight: 500;
}

.header-nav-item:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #bfdbfe;
}

.header-nav-item.active {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

/* Glass Modal/Dialog */
.glass-modal {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

/* Glass Alert/Badge */
.glass-badge {
    background: rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 20px;
    border: 1px solid rgba(102, 126, 234, 0.3);
    padding: 6px 14px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #667eea;
}

/* Background Gradients for Glass Effect */
.gradient-bg-primary {
    background: var(--primary-gradient);
}

.gradient-bg-secondary {
    background: var(--secondary-gradient);
}

.gradient-bg-accent {
    background: var(--accent-gradient);
}

.gradient-bg-dark {
    background: var(--dark-gradient);
}

/* Animated Gradient Background */
.animated-gradient-bg {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Glass Table */
.glass-table {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

.glass-table thead {
    background: rgba(102, 126, 234, 0.15);
}

.glass-table tbody tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.glass-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* Glass Sidebar */
.glass-sidebar {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

/* Frosted Glass Effect */
.frosted-glass {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.125);
}

/* Glass Tooltip */
.glass-tooltip {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    font-size: 0.875rem;
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Glass Progress Bar */
.glass-progress {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    height: 8px;
}

.glass-progress-fill {
    background: var(--primary-gradient);
    height: 100%;
    border-radius: 20px;
    transition: width 0.3s ease;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .glass-card {
        border-radius: 16px;
    }

    .glass-header {
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
    }
}

/* Accessibility Enhancements */
.glass-button:focus,
.glass-input:focus,
.glass-nav-item:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .glass {
        background: rgba(0, 0, 0, 0.4);
        border-color: rgba(255, 255, 255, 0.1);
    }

    .glass-card {
        background: rgba(0, 0, 0, 0.3);
        border-color: rgba(255, 255, 255, 0.15);
    }

    .glass-header {
        background: rgba(17, 24, 39, 0.95);
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }

    .glass-input {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
        color: #e5e7eb;
    }

    .glass-nav-item {
        color: #e5e7eb;
    }
}

/* Print Styles */
@media print {
    .glass,
    .glass-card,
    .glass-header,
    .glass-footer {
        background: #fff !important;
        backdrop-filter: none !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
}