/* Elegant Blue Style for EduPlan */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-blue: #1e3a8a;
    --primary-light: #3b82f6;
    --primary-extralight: #eff6ff;
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --border-radius: 12px;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

h2,
h3 {
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

/* Header Table styling */
table[style*="margin-bottom: 20px;"] {
    width: 100%;
}

.form-box {
    background: var(--primary-extralight);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 1px solid #dbeafe;
    margin: 20px 0;
    text-align: center;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-blue);
    text-align: left;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    margin: 8px 0 16px 0;
    display: inline-block;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.btn {
    background-color: var(--primary-blue);
    color: white;
    padding: 12px 24px;
    margin: 8px 0;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    width: 100%;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
    background-color: #1e40af;
}

.btn:active {
    transform: translateY(1px);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    border: 1px solid #e2e8f0;
    padding: 12px 15px;
    text-align: left;
}

.data-table th {
    background-color: var(--primary-blue);
    color: white;
    font-weight: 600;
}

.data-table tr:nth-child(even) {
    background-color: var(--primary-extralight);
}

/* Modal styling */
.custom-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 0;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    overflow: hidden;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-30px);
        opacity: 0;
    }

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

.modal-header {
    background-color: var(--primary-blue);
    color: white;
    padding: 15px 20px;
}

.modal-header h3 {
    margin: 0;
    color: white;
    text-align: left;
}

.modal-body {
    padding: 20px;
    color: var(--text-color);
}

.modal-footer {
    padding: 15px 20px;
    background-color: #f8fafc;
    text-align: right;
    border-top: 1px solid #e2e8f0;
}

.btn-modal-close {
    background-color: #94a3b8;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.btn-modal-close:hover {
    background-color: #64748b;
}

/* Links */
a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    text-decoration: underline;
}

hr {
    border: 0;
    border-top: 1px solid #e2e8f0;
    margin: 20px 0;
}

.error {
    color: #dc2626;
    background: #fef2f2;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #fee2e2;
    text-align: center;
}