:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --secondary: #ec4899;
    --accent: #8b5cf6;
    --background: #f3f4f6;
    --surface: rgba(255, 255, 255, 0.9);
    --text: #1f2937;
    --text-light: #6b7280;
    --success: #10b981;
    --danger: #ef4444;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.5);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f3f4f6 0%, #e0e7ff 100%);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: var(--glass-border);
    box-shadow: var(--shadow);
}

.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: #111827;
    font-weight: 700;
    letter-spacing: -0.025em;
}

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

h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    border-radius: var(--radius);
    position: sticky;
    top: 1rem;
    z-index: 50;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    margin-left: 1.5rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary);
}

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

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

input,
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    background: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-secondary {
    background: white;
    color: var(--text);
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background: #f9fafb;
    border-color: #9ca3af;
}

/* Grid & Utilities */
.grid {
    display: grid;
    gap: 1.5rem;
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.text-center {
    text-align: center;
}

/* Student Card */
.student-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.student-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius) var(--radius) 0 0;
}

.student-info {
    padding: 1.5rem;
    flex-grow: 1;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-blue {
    background: #dbeafe;
    color: #1e40af;
}

.badge-green {
    background: #d1fae5;
    color: #065f46;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}