* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: #f4f6f8;
    color: #1f2d3d;
}

/* --- Login --- */
.pagina-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.tarjeta-login {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
    padding: 32px 28px;
    width: 100%;
    max-width: 360px;
    text-align: center;
}

.tarjeta-login h1 {
    margin: 0 0 2px 0;
    color: #1e3a52;
    letter-spacing: 1px;
}

.subtitulo {
    color: #888;
    margin: 0 0 22px 0;
    font-size: 14px;
}

.tarjeta-login form { text-align: left; }

.tarjeta-login label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin: 14px 0 4px 0;
    color: #555;
}

.tarjeta-login input {
    width: 100%;
    padding: 11px 12px;
    border-radius: 10px;
    border: 1px solid #d7dce1;
    font-size: 16px;
}

.tarjeta-login button {
    width: 100%;
    margin-top: 22px;
    padding: 13px;
    border: none;
    border-radius: 999px;
    background: #1e3a52;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.tarjeta-login button:active { opacity: 0.85; }

.mensaje-error {
    background: #fdeceb;
    color: #c1666b;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 6px;
}

.mensaje-ok {
    background: #e8f5e9;
    color: #2e7d32;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 16px;
}

/* --- Encabezado general --- */
.encabezado {
    background: #1e3a52;
    color: white;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    flex-wrap: wrap;
    gap: 6px;
}

.encabezado a { color: white; }
.usuario-actual { font-size: 13px; opacity: 0.9; }

/* --- Contenido general --- */
.contenido {
    max-width: 640px;
    margin: 0 auto;
    padding: 18px 16px 60px 16px;
}

/* --- Menú principal --- */
.menu-principal {
    display: grid;
    gap: 14px;
    padding-top: 26px;
}

.tarjeta-menu {
    display: flex;
    align-items: center;
    gap: 14px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    padding: 22px 20px;
    text-decoration: none;
    color: #1f2d3d;
    font-weight: 600;
    font-size: 17px;
}

.tarjeta-menu .icono { font-size: 28px; }
.tarjeta-menu:active { background: #eef1f4; }

/* --- Formularios --- */
.titulo-pagina {
    font-size: 20px;
    font-weight: 700;
    color: #1e3a52;
    margin: 4px 0 18px 0;
}

.tarjeta {
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    padding: 18px 16px;
    margin-bottom: 16px;
}

.tarjeta h2 {
    font-size: 15px;
    margin: 0 0 12px 0;
    color: #1e3a52;
}

.campo { margin-bottom: 14px; }

.campo label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #555;
}

.campo input, .campo select, .campo textarea {
    width: 100%;
    padding: 10px 11px;
    border-radius: 10px;
    border: 1px solid #d7dce1;
    font-size: 15px;
    font-family: inherit;
    background: white;
}

.campo textarea { resize: vertical; min-height: 70px; }

.fila-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.item-agregado {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f4f6f8;
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
    font-size: 14px;
}

.item-agregado button {
    background: none;
    border: none;
    color: #c1666b;
    font-size: 18px;
    cursor: pointer;
    padding: 0 4px;
}

.boton-primario, .boton-secundario {
    display: inline-block;
    padding: 11px 22px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}

.boton-primario {
    background: #1e3a52;
    color: white;
    width: 100%;
}

.boton-secundario {
    background: white;
    color: #1e3a52;
    border: 1px solid #1e3a52;
}

.boton-primario:active, .boton-secundario:active { opacity: 0.85; }

.volver {
    display: inline-block;
    margin-bottom: 14px;
    color: #1e3a52;
    text-decoration: none;
    font-size: 14px;
}

.ayuda-campo {
    font-size: 12px;
    color: #888;
    margin-top: 3px;
}