:root {
    --color-principal: #2563eb;
    --color-principal-hover: #1d4ed8;
    --color-secundario: #64748b;
    --color-fondo: #f1f5f9;
    --color-card: #ffffff;
    --color-texto: #1e293b;
    --color-muted: #64748b;
    --color-borde: #e2e8f0;
    --color-exito-bg: #dcfce7;
    --color-exito: #166534;
    --color-error-bg: #fee2e2;
    --color-error: #991b1b;
    --sombra: 0 10px 25px rgba(15, 23, 42, 0.08);
    --sombra-hover: 0 16px 36px rgba(15, 23, 42, 0.14);
    --radio: 16px;
}

/* Reset */

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    width: 100%;
    max-width: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--color-fondo);
    color: var(--color-texto);
    overflow-x: hidden;
}

/* Cabecera corporativa */

.cabecera-app {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    color: white;
    padding: 24px 34px;
}

.marca-app {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-app {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    flex: 0 0 auto;
}

.marca-app h1 {
    margin: 0;
    font-size: 25px;
    font-weight: 700;
}

.marca-app p {
    margin: 4px 0 0 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: 14px;
}

/* Menú principal */

.menu-principal {
    background: white;
    padding: 0 28px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--color-borde);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    width: 100%;
}

.menu-principal > a,
.dropbtn {
    color: var(--color-texto);
    text-decoration: none;
    font-size: 14px;
    padding: 16px 12px;
    display: inline-block;
    border-bottom: 3px solid transparent;
    transition: all 0.15s ease;
}

.menu-principal > a:hover,
.dropbtn:hover {
    color: var(--color-principal);
    border-bottom-color: var(--color-principal);
    text-decoration: none;
}

/* Dropdown */

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background: white;
    min-width: 225px;
    box-shadow: var(--sombra);
    border-radius: 12px;
    z-index: 9999;
    top: 100%;
    left: 0;
    overflow: hidden;
    border: 1px solid var(--color-borde);
}

.dropdown-content a {
    color: var(--color-texto);
    padding: 12px 15px;
    text-decoration: none;
    display: block;
    font-size: 14px;
    border-bottom: none;
}

.dropdown-content a:hover {
    background: #eff6ff;
    color: var(--color-principal);
    text-decoration: none;
    border-bottom: none;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Layout */

main {
    flex: 1;
    width: 100%;
    padding: clamp(12px, 2vw, 32px);
}

.contenedor {
    background: var(--color-card);
    padding: 28px;
    border-radius: var(--radio);
    width: 100%;
    max-width: min(1250px, calc(100vw - 32px));
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--sombra);
}

.contenedor-ancho {
    max-width: none;
}

h2 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 25px;
    color: var(--color-texto);
}

h3 {
    margin-top: 0;
}

.texto-muted {
    color: var(--color-muted);
}

/* Formularios */

.form-grupo {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--color-texto);
}

input,
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-borde);
    border-radius: 10px;
    background: white;
    font-size: 14px;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-principal);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

textarea {
    min-height: 90px;
}

.acciones {
    margin-top: 22px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Botones */

.btn {
    display: inline-block;
    padding: 9px 14px;
    background: var(--color-principal);
    color: white !important;
    text-decoration: none;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.15s ease;
}

.btn:hover {
    background: var(--color-principal-hover);
    text-decoration: none;
}

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

.btn-secundario:hover {
    background: #475569;
}

/* Mensajes */

.mensaje {
    padding: 12px 14px;
    margin-bottom: 18px;
    border-radius: 10px;
    background: var(--color-exito-bg);
    color: var(--color-exito);
    font-weight: 600;
}

.error {
    padding: 12px 14px;
    margin-bottom: 18px;
    border-radius: 10px;
    background: var(--color-error-bg);
    color: var(--color-error);
    font-weight: 600;
}

/* Tablas */

.tabla-responsive,
.calendario-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    max-width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 18px;
    background: white;
    border: 1px solid var(--color-borde);
    border-radius: 12px;
    overflow: hidden;
}

th,
td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-borde);
    font-size: 14px;
}

th {
    background: #f8fafc;
    color: #334155;
    font-weight: 700;
}

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

tbody tr:hover {
    background: #f8fafc;
}

tfoot th {
    background: #eef2ff;
}

/* Cards / dashboard / administración */

.grid-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
    gap: 20px;
    align-items: stretch;
}

.card-dashboard {
    background: white;
    padding: 24px;
    border-radius: var(--radio);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
    min-height: 145px;
    border: 1px solid var(--color-borde);
    transition: all 0.18s ease;
}

.card-dashboard:hover {
    transform: translateY(-3px);
    box-shadow: var(--sombra-hover);
    border-color: #bfdbfe;
}

.card-dashboard h3 {
    margin: 0 0 12px 0;
    font-size: 18px;
    color: var(--color-texto);
}

.card-dashboard p {
    font-size: 16px;
    margin: 0;
    font-weight: 500;
    color: var(--color-muted);
}

.card-link {
    text-decoration: none;
    color: var(--color-texto);
}

/* Página administración */

.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
    gap: 20px;
}

.admin-card {
    background: white;
    padding: 24px;
    border-radius: var(--radio);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
    border: 1px solid var(--color-borde);
    min-height: 180px;
    text-decoration: none;
    color: var(--color-texto);
    transition: all 0.18s ease;
}

.admin-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--sombra-hover);
    border-color: #bfdbfe;
}

.admin-card h3 {
    margin: 0 0 10px 0;
    font-size: 18px;
}

.admin-card p {
    margin: 0;
    color: var(--color-muted);
    font-size: 15px;
}

/* Iconos tarjetas */

.admin-icono {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #eff6ff;
    color: var(--color-principal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.admin-card:hover .admin-icono,
.card-dashboard:hover .admin-icono {
    background: var(--color-principal);
    color: white;
}

/* Hero panel principal */

.hero-panel {
    background: linear-gradient(135deg, #eff6ff, #ffffff);
    border: 1px solid #dbeafe;
    border-radius: 18px;
    padding: 26px;
    margin-bottom: 26px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.hero-panel h2 {
    margin: 0 0 8px 0;
    font-size: 28px;
}

.hero-panel p {
    margin: 0;
    color: var(--color-muted);
    font-size: 15px;
}

.hero-badge {
    background: var(--color-principal);
    color: white;
    padding: 12px 18px;
    border-radius: 999px;
    font-weight: 700;
    white-space: nowrap;
}

/* Submenús */

.submenu-dashboard {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

/* Filtros superiores */

.filtros-linea {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 22px;
    width: 100%;
}

.filtros-linea .form-grupo {
    margin-bottom: 0;
    min-width: 160px;
    flex: 1;
}

.filtros-linea .acciones {
    margin-top: 0;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Calendario escritorio */

.calendario-wrapper {
    display: block;
}

.calendario-table {
    width: 100%;
    min-width: 780px;
    border-collapse: separate;
    border-spacing: 0;
    table-layout: fixed;
}

.calendario-table th {
    text-align: center;
    background: #f8fafc;
    color: #334155;
    font-weight: 700;
    padding: 14px;
}

.calendario-table td {
    vertical-align: top;
    height: 135px;
    padding: 10px;
    background: white;
}

.calendario-dia {
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
}

.cita-calendario {
    margin-top: 6px;
    padding: 8px;
    background: #eff6ff;
    border-left: 4px solid var(--color-principal);
    border-radius: 10px;
    font-size: 13px;
}

.cita-calendario a {
    color: var(--color-principal);
    font-weight: 700;
    text-decoration: none;
}

.cita-calendario a:hover {
    text-decoration: underline;
}

.cita-calendario small {
    color: var(--color-muted);
}

/* Calendario móvil */

.calendario-lista-mobile {
    display: none;
}

.dia-agenda {
    background: white;
    border: 1px solid var(--color-borde);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 12px;
}

.dia-agenda h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--color-texto);
}

.cita-agenda {
    background: #eff6ff;
    border-left: 4px solid var(--color-principal);
    border-radius: 10px;
    padding: 10px;
    margin-top: 8px;
    font-size: 14px;
}

.cita-agenda a {
    color: var(--color-principal);
    font-weight: 700;
    text-decoration: none;
}

.cita-agenda small {
    color: var(--color-muted);
}

.sin-citas {
    color: var(--color-muted);
    font-size: 14px;
}

/* Footer */

footer {
    text-align: center !important;
    padding: 24px !important;
    color: var(--color-muted) !important;
    font-size: 13px !important;
}

/* Responsive suave */

@media (max-width: 768px) {
    .cabecera-app {
        padding: 16px;
    }

    .marca-app {
        gap: 12px;
        align-items: flex-start;
    }

    .logo-app {
        width: 42px;
        height: 42px;
        font-size: 16px;
        border-radius: 12px;
    }

    .marca-app h1 {
        font-size: 18px;
        line-height: 1.2;
    }

    .marca-app p {
        font-size: 12px;
    }

    .menu-principal {
        overflow-x: auto;
        overflow-y: visible;
        flex-wrap: nowrap;
        white-space: nowrap;
        padding: 0 12px;
        gap: 4px;
    }

    .menu-principal > a,
    .dropbtn {
        padding: 13px 10px;
        font-size: 13px;
        flex: 0 0 auto;
    }

    .dropdown {
        flex: 0 0 auto;
    }

    .dropdown-content {
        min-width: 210px;
    }

    main {
        padding: 12px;
    }

    .contenedor {
        max-width: 100%;
        padding: 16px;
        border-radius: 12px;
    }

    h2 {
        font-size: 22px;
    }

    .hero-panel {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px;
    }

    .hero-panel h2 {
        font-size: 23px;
    }

    .hero-badge {
        font-size: 13px;
        padding: 9px 13px;
    }

    .card-dashboard,
    .admin-card {
        min-height: auto;
        padding: 18px;
    }

    .filtros-linea {
        flex-direction: column;
        align-items: stretch;
    }

    .filtros-linea .form-grupo,
    .filtros-linea .acciones,
    .filtros-linea .btn {
        width: 100%;
    }

    .filtros-linea .acciones {
        flex-direction: column;
    }

    input,
    textarea,
    select,
    button,
    .btn {
        font-size: 15px;
    }

    table {
        font-size: 13px;
    }

    th,
    td {
        padding: 9px 10px;
    }

    .calendario-wrapper {
        display: none !important;
    }

    .calendario-table {
        display: none !important;
    }

    .calendario-lista-mobile {
        display: block !important;
    }
}

/* Pantallas muy pequeñas */

@media (max-width: 420px) {
    .marca-app p {
        display: none;
    }

    .contenedor {
        padding: 14px;
    }

    .grid-dashboard,
    .admin-grid {
        gap: 12px;
    }

    .card-dashboard h3,
    .admin-card h3 {
        font-size: 16px;
    }

    .card-dashboard p,
    .admin-card p {
        font-size: 14px;
    }
}