:root {
    --color-fondo: #f5f6f8;
    --color-texto: #1f2430;
    --color-borde: #d7dbe2;
    --color-primario: #2f6fed;
    --color-primario-hover: #2558c4;
    --color-peligro: #d3423e;
    --color-exito: #1e8e5a;
    --color-superficie: #ffffff;
    --radio: 6px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #126B92 0%, #0d4a6a 100%);
    color: var(--color-texto);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--color-primario);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.barra-superior {
    background: var(--color-superficie);
    border-bottom: 1px solid var(--color-borde);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.barra-superior nav a {
    margin-right: 16px;
    color: var(--color-texto);
    font-weight: 500;
}

.contenedor {
    max-width: 960px;
    margin: 24px auto;
    padding: 0 16px;
}

.tarjeta {
    background: var(--color-superficie);
    border: 1px solid var(--color-borde);
    border-radius: var(--radio);
    padding: 24px;
    margin-bottom: 20px;
}

h1, h2, h3 {
    margin-top: 0;
}

label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 13px;
    color: #4a5062;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-borde);
    border-radius: var(--radio);
    font-size: 14px;
    margin-bottom: 14px;
    font-family: inherit;
}

.campo {
    margin-bottom: 14px;
}

.fila {
    display: flex;
    gap: 12px;
}

.fila > * {
    flex: 1;
}

button,
.boton {
    display: inline-block;
    background: var(--color-primario);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: var(--radio);
    font-size: 14px;
    cursor: pointer;
    font-family: inherit;
}

button:hover,
.boton:hover {
    background: var(--color-primario-hover);
    text-decoration: none;
}

.boton-secundario {
    background: transparent;
    color: var(--color-texto);
    border: 1px solid var(--color-borde);
}

.boton-secundario:hover {
    background: #eef0f3;
}

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

th, td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid var(--color-borde);
    font-size: 14px;
}

th {
    color: #6b7280;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
}

.mensaje-error {
    background: #fdecea;
    color: var(--color-peligro);
    border: 1px solid #f3c1bf;
    padding: 10px 14px;
    border-radius: var(--radio);
    margin-bottom: 16px;
}

.mensaje-exito {
    background: #e8f5ee;
    color: var(--color-exito);
    border: 1px solid #b8e0cb;
    padding: 10px 14px;
    border-radius: var(--radio);
    margin-bottom: 16px;
}

.pantalla-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
    margin: 0;
}

.pantalla-login .tarjeta {
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    border: none;
    border-radius: 10px;
    padding: 40px 32px;
}

.pantalla-login h1 {
    color: #126B92;
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin: 0 0 24px 0;
}

.pantalla-login .logo {
    text-align: center;
    margin-bottom: 24px;
}

.pantalla-login .logo img {
    height: 50px;
    width: auto;
}

.pantalla-login label {
    color: #1f2430;
    font-weight: 600;
    font-size: 14px;
}

.pantalla-login input[type="password"] {
    padding: 12px 14px;
    border: 1px solid #d1d5db;
    font-size: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.pantalla-login input[type="password"]:focus {
    outline: none;
    border-color: #126B92;
    box-shadow: 0 0 0 3px rgba(18, 107, 146, 0.1);
}

.pantalla-login button {
    width: 100%;
    padding: 12px;
    background-color: #126B92;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.pantalla-login button:hover {
    background-color: #0d4a6a;
}

.texto-tenue {
    color: #6b7280;
    font-size: 13px;
}

.items-tabla input {
    margin-bottom: 0;
}

.items-tabla td {
    vertical-align: top;
}

/* Los estilos del documento de cotización viven en documento.css
   (compartidos entre la vista en pantalla y el PDF vía Dompdf). */