/* ==========================================
   LLMS - Language Learning Management System
   Custom Styles
   ========================================== */

/* Glassmorphism Cards */
.glass-card {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.glass-card-darker {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(148, 163, 184, 0.1);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Primary Gradient Button */
.btn-primary-gradient {
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    transition: all 0.3s ease;
}

.btn-primary-gradient:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(139, 92, 246, 0.4);
}

/* Streak Badge Animation */
@keyframes flame-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.streak-badge {
    animation: flame-pulse 2s ease-in-out infinite;
}

/* Card Hover Effect */
.module-card {
    transition: all 0.3s ease;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.3);
}

/* Input Focus Styles */
.input-focus-glow:focus {
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.3);
}

/* Sidebar Active Link */
.nav-link-active {
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.2) 0%, transparent 100%);
    border-left: 3px solid #8b5cf6;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #1e293b;
}

::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(139, 92, 246, 0.3);
    border-top-color: #8b5cf6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Notification Toast */
.toast {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Stats Counter Animation */
@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.stat-number {
    animation: countUp 0.5s ease-out forwards;
}

/* Language Dropdown */
.language-dropdown {
    position: relative;
}

.language-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.language-dropdown:hover .language-dropdown-menu,
.language-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
}