@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600&family=Playfair+Display:wght@400;600;700&family=Raleway:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #1c4c7c;
    --primary-hover: #1c5dac;
    --bg-color: #f2f5f7;
    --card-bg: #ffffff;
    --text-main: #3a3a3a;
    --text-muted: #555555;
    --border-color: #dddddd;
    --success: #10B981;
    --danger: #EF4444;
}

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

body {
    background: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Open Sans', sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

h1,
h2,
h3 {
    color: var(--text-main);
    margin-bottom: 1rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.8rem;
}

p {
    color: var(--text-muted);
    line-height: 1.6;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-main);
}

input,
select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 1rem;
    transition: all 0.2s;
    background-color: #fafafa;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 3px;
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    font-family: 'Raleway', sans-serif;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    text-decoration: none;
    text-align: center;
}

.btn:hover {
    background-color: var(--primary-hover);
}

.btn:active {
    transform: scale(0.98);
}

.btn-success {
    background-color: var(--success);
}

.btn-success:hover {
    background-color: #059669;
}

/* Grid para formularios */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Tarjetas de Cursos (Estudiantes) */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.course-card {
    background: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Tablas Premium */
.table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    background: #fff;
    margin-top: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

th {
    background-color: #F9FAFB;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tbody tr:hover {
    background-color: #F3F4F6;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--success);
}

input:checked+.slider:before {
    transform: translateX(20px);
}

/* Header/Nav */
.header {
    background-color: var(--primary-color);
    width: 100%;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding-left: 2rem;
    padding-right: 2rem;
}

.logo {
    height: 55px;
    max-width: 100%;
    object-fit: contain;
}

.nav-links a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: #ffffff;
    font-weight: 500;
    font-family: 'Raleway', sans-serif;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #d0e1f9;
}