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

:root {
    --violeta-principal: #7E57C2;
    --violeta-oscuro: #5E35B1;
    --violeta-claro: #9575CD;
    --azul-claro: #64B5F6;
    --azul-medio: #42A5F5;
    --lavanda: #E1BEE7;
    --lavanda-claro: #F3E5F5;
    --verde-menta: #26A69A;
    --verde-menta-claro: #4DB6AC;
    --gris-oscuro: #616161;
    --gris-claro: #E0E0E0;
    --gris-muy-claro: #F5F5F5;
    --blanco: #FFFFFF;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--gris-muy-claro);
}

.header {
    background-color: var(--violeta-principal);
    color: var(--blanco);
    padding: 16px 24px;
    box-shadow: 0 2px 4px rgba(126, 87, 194, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 24px;
    font-weight: 500;
}

.container {
    display: flex;
    min-height: calc(100vh - 64px);
}

.sidebar {
    width: 250px;
    background-color: var(--lavanda-claro);
    padding: 20px 0;
}

.menu-item {
    padding: 14px 24px;
    color: var(--gris-oscuro);
    text-decoration: none;
    display: block;
    transition: all 0.3s;
    border-left: 4px solid transparent;
}

.menu-item:hover {
    background-color: var(--lavanda);
}

.menu-item.active {
    background-color: var(--violeta-claro);
    color: var(--blanco);
    border-left-color: var(--violeta-oscuro);
    font-weight: 500;
}

.main-content {
    flex: 1;
    padding: 32px;
}

.card {
    background-color: var(--blanco);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card-header {
    color: var(--violeta-principal);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--lavanda);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--violeta-principal);
    color: var(--blanco);
}

.btn-primary:hover {
    background-color: var(--violeta-oscuro);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(126, 87, 194, 0.3);
}

.btn-secondary {
    background-color: var(--azul-claro);
    color: var(--blanco);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: linear-gradient(135deg, var(--violeta-principal), var(--violeta-claro));
    color: var(--blanco);
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(126, 87, 194, 0.2);
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    margin: 8px 0;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

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

.table thead {
    background-color: var(--lavanda-claro);
}

.table th {
    padding: 12px;
    text-align: left;
    color: var(--gris-oscuro);
    font-weight: 600;
}

.table td {
    padding: 12px;
    border-bottom: 1px solid var(--gris-claro);
}

.table tbody tr:hover {
    background-color: var(--lavanda-claro);
}

.badge {
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.badge-programada {
    background-color: var(--azul-claro);
    color: var(--blanco);
}

.badge-completada {
    background-color: var(--verde-menta);
    color: var(--blanco);
}

/* =========================================
   ESTILOS ESPECÍFICOS DEL LOGIN
   ========================================= */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, var(--violeta-principal), var(--azul-claro));
    margin: 0;
}

.login-card {
    background-color: var(--blanco);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-card h2 {
    color: var(--violeta-oscuro);
    margin-bottom: 8px;
}

.login-card p {
    color: var(--gris-oscuro);
    margin-bottom: 24px;
    font-size: 14px;
}

.form-group {
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--gris-oscuro);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gris-claro);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--violeta-principal);
}

.btn-block {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    margin-top: 10px;
}

.error-message {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}