:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --text: #0F172A;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --danger: #EF4444;
    --success: #10B981;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    width: 100%;
    padding: 2.5rem 0;
    text-align: center;
    background: linear-gradient(135deg, #FFFFFF, #F1F5F9);
    border-bottom: 1px solid var(--border);
    margin-bottom: 3rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    background: -webkit-linear-gradient(45deg, #3B82F6, #8B5CF6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.container {
    width: 100%;
    max-width: 600px;
    background-color: var(--surface);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    border: 1px solid var(--border);
    margin-bottom: 3rem;
}

.admin-container {
    max-width: 1000px;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}

input[type="text"],
input[type="date"],
input[type="password"],
input[type="email"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background-color: #F8FAFC;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1rem;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

input[readonly], textarea[readonly] {
    background-color: #F1F5F9;
    color: var(--text-muted);
    cursor: not-allowed;
}

input[readonly]:focus, textarea[readonly]:focus {
    box-shadow: none;
    border-color: var(--border);
    background-color: #F1F5F9;
}

button {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    background-color: var(--primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.3);
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 8px -1px rgba(79, 70, 229, 0.4);
}

button:disabled {
    background-color: var(--border);
    cursor: not-allowed;
    color: var(--text-muted);
    box-shadow: none;
    transform: none;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-error {
    background-color: #FEF2F2;
    border: 1px solid #FECACA;
    color: #DC2626;
}

.alert-success {
    background-color: #F0FDF4;
    border: 1px solid #BBF7D0;
    color: #16A34A;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
}

tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    background-color: #EEF2FF;
    color: var(--primary);
    border: 1px solid #C7D2FE;
}

.logout-link {
    color: var(--danger);
    text-decoration: none;
    float: right;
    font-weight: 600;
}
.logout-link:hover {
    text-decoration: underline;
}

.login-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}
.login-link:hover {
    color: var(--primary);
    text-decoration: underline;
}