/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-secondary {
    background: #4CAF50;
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    color: #667eea;
}

.logo i {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #666;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #667eea;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-buttons {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Features */
.features {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

/* Forms */
.form-container {
    max-width: 600px;
    margin: 2rem auto;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-title {
    text-align: center;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
}

.form-group textarea {
    resize: vertical;
}

/* Dashboard */
.dashboard-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.dashboard-sidebar {
    background: #2c3e50;
    color: white;
    padding: 2rem 0;
}

.user-profile {
    text-align: center;
    padding: 0 1rem 2rem;
    border-bottom: 1px solid #34495e;
}

.profile-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid #667eea;
}

.profile-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: #34495e;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 3rem;
}

.student-id {
    color: #667eea;
    font-weight: 500;
}

.sidebar-menu {
    padding: 1rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    color: #bdc3c7;
    text-decoration: none;
    border-radius: 5px;
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: #34495e;
    color: white;
}

.dashboard-content {
    padding: 2rem;
    background: #f5f5f5;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

/* ID Card Styles */
.id-card-container {
    max-width: 800px;
    margin: 2rem auto;
}

.id-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

.id-card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.institute-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 1rem;
}

.institute-logo i {
    font-size: 2rem;
}

.id-label {
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: 2px;
}

.id-card-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.id-photo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.id-photo {
    width: 200px;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
    border: 3px solid #ddd;
}

.id-photo-placeholder {
    width: 200px;
    height: 250px;
    border-radius: 10px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #667eea;
    border: 3px dashed #ddd;
}

.qr-code img {
    width: 150px;
    height: 150px;
    border: 1px solid #ddd;
    padding: 5px;
}

.id-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.id-card-footer {
    background: #f9f9f9;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Courses Page */
.courses-container {
    padding: 3rem 0;
}

.courses-header {
    text-align: center;
    margin-bottom: 3rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.course-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
}

.course-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
}

.course-body {
    padding: 1.5rem;
}

.course-features {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #666;
}

.course-footer {
    padding: 1.5rem;
    border-top: 1px solid #eee;
    display: flex;
    gap: 1rem;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.mobile-footer-icons {
    display: none;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section a {
    display: block;
    color: #bdc3c7;
    text-decoration: none;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
    border-top: 1px solid #34495e;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3a3;
    border: 1px solid #cfc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .dashboard-container {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: none;
    }
    
    .mobile-bottom-nav {
        display: flex;
        justify-content: space-around;
        padding: 0.5rem 0;
    }
    
    .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        color: #666;
        font-size: 0.8rem;
    }
    
    .nav-item.active {
        color: #667eea;
    }
    
    .mobile-footer-icons {
        display: flex;
        justify-content: space-around;
        padding: 1rem;
        background: #34495e;
        border-top: 1px solid #2c3e50;
    }
    
    .footer-icon {
        display: flex;
        flex-direction: column;
        align-items: center;
        color: #bdc3c7;
        text-decoration: none;
        font-size: 0.9rem;
    }
    
    .footer-icon i {
        font-size: 1.2rem;
        margin-bottom: 5px;
    }
    
    .id-card-body {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .id-card-footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .features-grid,
    .stats-grid,
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

@media print {
    .navbar,
    .mobile-bottom-nav,
    .id-card-actions,
    .print-instructions {
        display: none !important;
    }
    
    .id-card {
        box-shadow: none;
        border: 2px solid #000;
    }
}