/* style.css - Stili personalizzati per E-Learning System */

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

/* Animazioni */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Background gradiente animato */
.animated-bg {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

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

/* Card con effetto glass */
.glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
    transition: all 0.3s ease;
}

/* Bottoni moderni */
.btn-modern {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    z-index: 1;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    z-index: -1;
}

.btn-modern:hover::before {
    width: 100%;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Header migliorato */
.header-gradient {
    background: var(--primary-gradient);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Cards con hover effect */
.module-card {
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.module-card:hover {
    border-left-color: #667eea;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
    transform: translateX(5px);
}

/* Badge animati */
.badge-pulse {
    animation: pulse 2s infinite;
}

/* Input fields moderni */
.modern-input {
    transition: all 0.3s ease;
    border: 2px solid #e5e7eb;
}

.modern-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

/* Tab navigation migliorata */
.tab-modern {
    position: relative;
    transition: all 0.3s ease;
}

.tab-modern::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.tab-modern.active::after {
    width: 100%;
}

/* Icone animate */
.icon-bounce {
    display: inline-block;
    transition: all 0.3s ease;
}

.icon-bounce:hover {
    transform: translateY(-5px) rotate(5deg);
}

/* Scrollbar personalizzata */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-gradient);
}

/* Loader animato */
.loader {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Tooltip moderni */
.tooltip-modern {
    position: relative;
}

.tooltip-modern::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.tooltip-modern:hover::after {
    opacity: 1;
}

/* Floating action button */
.fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
}

.fab:hover {
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Content animations */
.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease;
}

/* Status indicators */
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

.status-dot.active {
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulse 2s infinite;
}

.status-dot.inactive {
    background: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .glass-card {
        background: rgba(30, 30, 30, 0.9);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .modern-input {
        background: #1f2937;
        color: white;
        border-color: #374151;
    }
}