/* EduTrack - Student Management System */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: 'Poppins', Arial, sans-serif;
    background-color: #F8FAFC;
    color: #111827;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Header & Navbar */
header {
    background: #1E3A8A;
    color: white;
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.3s ease, color 0.3s ease;
}

.nav-links a:hover {
    background: #3B82F6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: #1E3A8A;
    color: white;
}

.btn-primary:hover {
    background: #3B82F6;
}

.btn-secondary {
    background: #3B82F6;
    color: white;
}

.btn-secondary:hover {
    background: #2563EB;
}

.btn-success {
    background: #10B981;
    color: white;
}

.btn-danger {
    background: #EF4444;
    color: white;
}

.btn-danger:hover {
    background: #DC2626;
}

.btn-outline {
    background: transparent;
    border: 2px solid #1E3A8A;
    color: #1E3A8A;
}

.btn-outline:hover {
    background: #1E3A8A;
    color: white;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* Forms */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3B82F6;
}

/* Index/Landing Page */
.hero {
    position: relative;
    height: 70vh;
    min-height: 400px;
    color: white;
    margin-bottom: 2rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-overlay {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(30,58,138,0.75), rgba(59,130,246,0.75));
}

.hero-inner {
    max-width: 1200px;
    width: 100%;
    padding: 0 1.5rem;
    text-align: center;
}

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

.hero-overlay p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

.hero-buttons .btn {
    padding: 0.8rem 1.5rem;
    font-size: 1.1rem;
    border: 2px solid white;
    background: transparent;
    color: white;
}

.hero-buttons .hero-btn:hover {
    background: white;
    color: #1E3A8A;
}

/* Features Section */
.features {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 1rem;
}

.feature-card {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
    padding: 2rem;
}

.feature-card h3 {
    color: #1E3A8A;
    margin-bottom: 0.5rem;
}

/* Social media feature row (smaller cards) */
.social-features {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-features .card {
    flex: 1 1 0;
    min-width: 0;
    padding: 1.25rem;
}

/* Stats Section */
.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 3rem 2rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-card .number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1E3A8A;
}

.full-width-media {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.full-width-media iframe {
    width: 100%;
    height: 450px;
    border: none;
    display: block;
}
/* Footer */
footer {
    background: #1E3A8A;
    color: white;
    padding: 0.5rem 2rem;
    margin-top: auto;
}

.copyright {
    text-align: center;
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

/* Simple layout helpers added for student-style pages */
html, body {
    height: 100%;
}

body {
    font-family: 'Poppins', Arial, sans-serif;
    background-color: #F8FAFC;
    color: #111827;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main, .dashboard-layout, .auth-container, .page-content {
    flex: 1;
}

.page-content {
    max-width: 1200px;
    margin: 1.5rem auto 0;
    padding: 0 1.5rem;
}

.simple-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.simple-box {
    flex: 1 1 200px;
    border: 1px solid #E5E7EB;
    padding: 1rem;
    background: #FFFFFF;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    margin-bottom: 1rem;
}

.simple-box h3 {
    margin-bottom: 0.5rem;
    color: #1E3A8A;
}

.simple-box p {
    font-size: 1.2rem;
    font-weight: 600;
}

.simple-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.gender-row {
    display: flex;
    gap: 1rem;
    margin-top: 0.3rem;
}

.gender-row label {
    font-size: 0.95rem;
}

.notify-card {
    padding: 0.8rem 1rem;
    margin-bottom: 0.6rem;
    border-left: 4px solid;
    background: #F9FAFB;
}

.notify-card.success {
    border-color: #10B981;
    color: #065F46;
}

.notify-card.error {
    border-color: #EF4444;
    color: #7F1D1D;
}

.notify-card.info {
    border-color: #3B82F6;
    color: #1E3A8A;
}

/* Auth Pages */
.auth-container {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem;
    min-height: 0;
    overflow: auto;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    min-width: 280px;
    margin: 1rem 0;
}


.auth-card h1 {
    text-align: center;
    color: #1E3A8A;
    margin-bottom: 1.5rem;
}

.error-msg {
    background: #FEE2E2;
    color: #EF4444;
    padding: 0.8rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.success-msg {
    background: #D1FAE5;
    color: #10B981;
    padding: 0.8rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.radio-group {
    display: flex;
    gap: 5rem;
    margin-top: 0.4rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.1rem;
}

.radio-group input[type="radio"] {
    margin: 0;
    vertical-align: middle;
}

.dashboard-layout {
    display: flex;
    flex: 1;
    min-height: 0;
    align-items: stretch;
}

.sidebar {
    width: 250px;
    background: #1E3A8A;
    color: white;
    padding: 1.25rem 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sidebar-nav li {
    width: 100%;
}

.sidebar-nav a {
    display: block;
    padding: 0.85rem 1.2rem;
    color: white;
    transition: background 0.3s ease;
    border-radius: 0;
}

.sidebar-nav a:hover {
    background: #3B82F6;
}

.main-content {
    flex: 1;
    padding: 1.5rem;
    min-height: 0;
    overflow: auto;
}

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dash-card {
    text-align: center;
    padding: 1.5rem;
}

.dash-card h3 {
    font-size: 2rem;
    color: #1E3A8A;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

/* Table */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    table-layout: fixed;
}

thead th, tbody td { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (max-width: 1200px) {
    .table-container table {
        table-layout: auto;
    }
}

th, td {
    padding: 1rem;
    text-align: left;
}

th {
    background: #1E3A8A;
    color: white;
}

tr:nth-child(even) {
    background: #F8FAFC;
}

tr:hover {
    background: #F1F5F9;
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

.table-actions .btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
}

/* Search Form */
.search-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.search-form input {
    flex: 1;
    padding: 0.6rem 1rem;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
}

.search-form button {
    padding: 0.6rem 1.2rem;
}

/* Profile Page */
.profile-header {
    text-align: center;
    margin-bottom: 2rem;
}

.profile-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: #1E3A8A;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 1rem;
}

.profile-info {
    max-width: 500px;
    margin: 0 auto;
}

/* Notifications */
.notification-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.notification-card {
    padding: 1rem 1.5rem;
    border-left: 4px solid #3B82F6;
}

.notification-card.success {
    border-left-color: #10B981;
}

.notification-card.warning {
    border-left-color: #EF4444;
}

/* Hamburger for mobile */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .features, .social-features, .media-grid {
        flex-direction: column;
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .dashboard-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 0.6rem;
    }

    .search-form {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .features,
    .social-features {
        flex-direction: column;
    }

    .auth-container,
    .dashboard-layout,
    .main-content {
        padding: 0 1rem;
    }

    .card,
    .table-container,
    .auth-card {
        width: 100%;
        box-sizing: border-box;
    }

    .form-group input,
    .form-group select,
    .form-group textarea,
    .search-form input {
        width: 100%;
    }

    .radio-group {
        flex-wrap: wrap;
        gap: 0.4rem;
    }

    .radio-group label {
        width: auto;
    }
}