/* style.css - Complete Stylesheet */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    padding-bottom: 70px;
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Gradient Buttons */
.btn-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    padding: 10px 25px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-gradient-outline {
    background: transparent;
    border: 2px solid #764ba2;
    color: #764ba2;
    padding: 8px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.btn-gradient-outline:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

/* Stats Cards */
.stat-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.stat-card i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.stat-card h3 {
    font-size: 1.8rem;
    font-weight: bold;
    margin: 10px 0;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s ease;
    z-index: 1050;
    padding-top: 20px;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 20px;
    color: white;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-menu {
    padding: 20px 0;
}

.sidebar-menu a {
    padding: 12px 25px;
    display: block;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover {
    background: rgba(255,255,255,0.1);
    padding-left: 30px;
}

.sidebar-menu a i {
    margin-right: 10px;
    width: 20px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1030;
}

.nav-item {
    text-align: center;
    flex: 1;
    color: #6c757d;
    transition: all 0.3s ease;
    text-decoration: none;
}

.nav-item i {
    font-size: 24px;
    display: block;
    transition: transform 0.3s ease;
}

.nav-item span {
    font-size: 12px;
    display: block;
}

.nav-item:hover i {
    transform: translateY(-3px);
}

.nav-item.active {
    color: #764ba2;
}

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1040;
    display: none;
}

.overlay.active {
    display: block;
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    padding: 10px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #764ba2;
    box-shadow: 0 0 0 0.2rem rgba(118, 75, 162, 0.25);
}

/* Alert Styles */
.alert {
    border-radius: 10px;
    border: none;
    animation: slideInLeft 0.3s ease-out;
}

/* Progress Bar */
.progress {
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.6s ease;
}

/* Badge Styles */
.badge-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Tree View */
.tree {
    position: relative;
    padding: 20px;
}

.tree-node {
    text-align: center;
    margin: 10px;
    display: inline-block;
    position: relative;
}

.tree-node .card {
    min-width: 120px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.tree-node .card:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.tree-connector {
    position: absolute;
    top: -20px;
    left: 50%;
    width: 2px;
    height: 20px;
    background: #764ba2;
}

/* Responsive */
@media (max-width: 768px) {
    .glass-card {
        padding: 1rem;
    }
    
    .stat-card h3 {
        font-size: 1.3rem;
    }
    
    .btn-gradient {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .tree-node .card {
        min-width: 80px;
    }
}

@media (max-width: 480px) {
    .stat-card i {
        font-size: 1.5rem;
    }
    
    .stat-card h3 {
        font-size: 1.1rem;
    }
    
    .nav-item i {
        font-size: 20px;
    }
    
    .nav-item span {
        font-size: 10px;
    }
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #764ba2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Scroll Reveal */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Tooltip */
.tooltip-custom {
    position: relative;
    display: inline-block;
}

.tooltip-custom .tooltip-text {
    visibility: hidden;
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 5px 10px;
    border-radius: 6px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip-custom:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Navbar */
.navbar-custom {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px;
}

/* Dashboard Specific */
.dashboard-stats {
    margin-top: 20px;
}

.dashboard-chart {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-top: 20px;
}