:root {
    --bg-color: #fdfcfa;
    --card-bg: #ffffff;
    --text-main: #4a2c1b;
    --text-light: #8a7369;
    --accent: #5a3a31;
    --border-color: #e6dfd9;
    --alert-red: #fcedec;
    --alert-red-text: #c0392b;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
}

/* Navegación Superior */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    padding: 0 20px;
    height: 60px;
    border-bottom: 1px solid var(--border-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
    margin: 0;
    height: 100%;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    font-size: 14px;
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 10px;
    border-bottom: 3px solid transparent;
}

.nav-links li a.active {
    color: var(--accent);
    border-bottom: 3px solid var(--accent);
}

.contenedor-principal {
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Alertas */
.alerta {
    background-color: var(--alert-red);
    color: var(--alert-red-text);
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    border-left: 4px solid var(--alert-red-text);
}

/* Tarjetas Resumen */
.resumen-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.card-resumen {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    border-left: 4px solid var(--accent);
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.card-resumen span {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-light);
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.card-resumen strong {
    font-size: 24px;
    color: var(--text-main);
}

/* Accesos Rápidos */
.grid-accesos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.card-acceso {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-decoration: none;
    color: var(--text-main);
    transition: box-shadow 0.2s;
}

.card-acceso:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.card-acceso h3 {
    margin: 0 0 10px 0;
    font-size: 15px;
}

.card-acceso p {
    font-size: 12px;
    color: var(--text-light);
    margin: 0 0 15px 0;
}

.card-acceso .btn-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}
/* MÓDULO CALENDARIO */
.calendario-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.cal-navegacion, .cal-acciones {
    display: flex;
    align-items: center;
    gap: 10px;
}

.vista-selector {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.btn-vista {
    border: none;
    background: var(--card-bg);
    padding: 6px 12px;
    font-size: 13px;
    cursor: pointer;
    border-right: 1px solid var(--border-color);
}
.btn-vista.activo { background: #f0ebe4; font-weight: 600; }
.btn-vista:last-child { border-right: none; }

.btn-blanco, .btn-icon {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
}

.btn-marron {
    background: var(--text-main);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}

.input-fecha, .input-select {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
}

.fecha-texto { font-weight: 600; font-size: 14px; margin-left: 10px; }

.calendario-herramientas {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

/* Timeline y Tarjetas */
.calendario-timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.franja-bloque {
    display: flex;
    gap: 20px;
}

.franja-hora {
    min-width: 60px;
    text-align: right;
    display: flex;
    flex-direction: column;
    font-size: 14px;
    color: var(--text-main);
    padding-top: 5px;
}
.franja-hora span { font-size: 11px; color: var(--text-light); }

.franja-tarjetas {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    flex: 1;
}

.tarjeta-clase {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent); /* Línea lateral decorativa */
    border-radius: 8px;
    padding: 15px;
    min-width: 280px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.tarjeta-header .horas { font-size: 11px; color: var(--text-light); display: block; margin-bottom: 2px;}
.tarjeta-header h4 { margin: 0 0 10px 0; font-size: 15px; }

.lista-alumnos {
    list-style: none;
    padding: 0;
    margin: 0 0 15px 0;
    font-size: 13px;
    color: var(--text-main);
}
.lista-alumnos li { margin-bottom: 4px; }
.asignatura { color: var(--text-light); }

.tarjeta-footer {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.num-alumnos { font-size: 12px; color: var(--text-light); }

.acciones-clase {
    display: flex;
    gap: 15px;
}

.btn-link-marron {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    font-weight: 600;
    font-size: 12px;
    text-decoration: underline;
    cursor: pointer;
}

/* Modal CSS */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    display: flex; justify-content: center; align-items: center;
}
.modal-content {
    background: white; padding: 25px; border-radius: 8px; width: 400px;
}
.modal-acciones { margin-top: 20px; display: flex; justify-content: flex-end; gap: 10px; }

@media print {
    .no-print { display: none !important; }
    .tarjeta-clase { break-inside: avoid; border: 1px solid #000; border-left: 4px solid #000; }
    body { background: white; }
}
/* Estilos Módulo Alumnos */
.alumnos-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.form-busqueda {
    display: flex;
    gap: 10px;
}

.tabla-contenedor {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.tabla-datos {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.tabla-datos th {
    background: #f7f4f0;
    color: var(--text-main);
    padding: 12px 15px;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
}

.tabla-datos td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
}

.tabla-datos tr:last-child td {
    border-bottom: none;
}

.badge-servicio {
    background: #f0ebe4;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-verde {
    background: #e8f8f5;
    color: #117a65;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.badge-rojo {
    background: var(--alert-red);
    color: var(--alert-red-text);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}
/* Módulo Perfil Alumno */
.perfil-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    align-items: start;
}

.tarjeta-perfil {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.tarjeta-perfil h3 { margin: 0 0 20px 0; font-size: 18px; }

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 5px;
}

.input-form {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    background: #fdfdfd;
}

.input-form:focus {
    outline: none;
    border-color: var(--accent);
}

.lista-horarios {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.horario-item {
    background: #fdfcfa;
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 3px solid var(--accent);
}