/* Student Portal Styling */

/* Login Page */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-box {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-box h1 {
    margin: 0 0 0.5rem 0;
    color: #1a365d;
    font-size: 1.8rem;
}

.login-subtitle {
    color: #666;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

/* Student Header */
.student-header {
    background: white;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
}

.student-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.navbar-brand a {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1a365d;
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover {
    background: #f3f4f6;
    color: #1a365d;
}

.nav-link.logout {
    color: #dc2626;
}

.nav-link.logout:hover {
    background: #fee2e2;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-left: 1rem;
    border-left: 1px solid #e5e7eb;
}

/* Student Main Content */
.student-main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
    background: #f9fafb;
}

.student-main .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.student-main h1 {
    color: #1a365d;
    margin-bottom: 2rem;
    font-size: 2rem;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    margin: 0;
    font-size: 2rem;
    color: #1a365d;
}

.stat-content p {
    margin: 0.25rem 0 0 0;
    color: #666;
    font-size: 0.9rem;
}

/* Dashboard Sections */
.dashboard-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.dashboard-section h2 {
    margin: 0 0 1.5rem 0;
    color: #1a365d;
    font-size: 1.5rem;
}

/* Course Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.course-card {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s;
}

.course-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.course-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.course-header h3 {
    margin: 0;
    color: #1a365d;
    font-size: 1.2rem;
}

.course-level {
    background: #dbeafe;
    color: #1e40af;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.course-description {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Progress Bar */
.progress-container {
    margin: 1rem 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s;
}

.progress-text {
    font-size: 0.85rem;
    color: #666;
}

.course-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: start;
    gap: 1rem;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 8px;
}

.activity-icon {
    font-size: 1.5rem;
}

.activity-content {
    flex: 1;
}

.activity-content strong {
    display: block;
    color: #1a365d;
    margin-bottom: 0.25rem;
}

.activity-content p {
    margin: 0.25rem 0;
    color: #666;
    font-size: 0.9rem;
}

.activity-content small {
    color: #999;
    font-size: 0.85rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.empty-state p {
    margin: 0.5rem 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #666;
    font-size: 0.85rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

/* Responsive */
@media (max-width: 768px) {
    .student-navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .navbar-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}