/* =====================================================================
   Portal Clientes — Climaco
   Sistema de diseño derivado del logotipo de la empresa:
     - Azul profundo  #005991  (confianza, técnico)
     - Azul cian vivo #00A0DC  (aire, climatización)
   Firma visual: una barra de degradado "frío→frío intenso" que evoca
   un gradiente de temperatura, usada como acento consistente en toda
   la aplicación (parte superior de página, tarjetas, enlace activo).
   ===================================================================== */

:root {
    /* --- Color --- */
    --color-primary: #005991;
    --color-primary-dark: #003D64;
    --color-accent: #00A0DC;
    --color-accent-light: #E6F5FC;
    --color-ink: #0E2233;
    --color-ink-soft: #4B6373;
    --color-paper: #F4F9FC;
    --color-surface: #FFFFFF;
    --color-border: #DCE7EE;
    --color-danger: #C2352C;
    --color-danger-bg: #FBEAE9;
    --color-success: #1E8A63;
    --color-success-bg: #E6F5EF;
    --gradient-brand: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);

    /* --- Tipografía --- */
    --font-display: "Space Grotesk", "Inter", sans-serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    --font-mono: "IBM Plex Mono", "Courier New", monospace;

    /* --- Forma --- */
    --radius: 0.7rem;
    --radius-sm: 0.45rem;
    --shadow-soft: 0 1px 2px rgba(14, 34, 51, 0.06), 0 8px 24px -12px rgba(0, 89, 145, 0.18);
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* --- Base --- */
html, body {
    background: var(--color-paper);
}

body {
    font-family: var(--font-body);
    color: var(--color-ink);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
    color: var(--color-ink);
}

a {
    color: var(--color-primary);
    transition: color 0.15s ease;
}

a:hover {
    color: var(--color-accent);
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* --- Barra de firma (degradado de temperatura) --- */
.brand-strip {
    height: 4px;
    background: var(--gradient-brand);
}

/* --- Cabecera --- */
.app-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.app-header .navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--color-ink);
}

.app-header .navbar-brand img {
    height: 34px;
    width: auto;
}

.app-header .navbar-brand:hover {
    color: var(--color-primary);
}

.app-header .navbar-brand .marca-arroba {
    color: var(--color-accent);
}

/* --- Pie de página --- */
.app-footer {
    text-align: center;
    padding: 1.5rem 1rem 2.25rem;
    font-size: 0.78rem;
    color: var(--color-ink-soft);
}

.app-footer strong {
    color: var(--color-ink);
    font-weight: 700;
}

.btn-logout {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.9rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-logout:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent);
    color: var(--color-primary-dark);
}

/* --- Tarjetas con firma de marca --- */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.card-brand {
    border-top: 4px solid transparent;
    border-image: var(--gradient-brand) 1;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

/* --- Botones --- */
.btn {
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-secondary {
    color: var(--color-ink-soft);
    border-color: var(--color-border);
}

.btn-outline-secondary:hover {
    background: var(--color-paper);
    border-color: var(--color-ink-soft);
    color: var(--color-ink);
}

/* --- Formularios --- */
.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-ink-soft);
}

.form-control {
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.85rem;
}

.form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 0.2rem rgba(0, 160, 220, 0.18);
}

/* --- Pantallas de acceso (login / recuperar / restablecer) --- */
/* La textura de cuadrados reproduce, a baja opacidad, el motivo de
   "cascada de píxeles" del propio logotipo — no es un patrón genérico,
   es el mismo lenguaje visual de la marca aplicado como fondo. */
.auth-shell {
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background-color: var(--color-paper);
    background-image:
        radial-gradient(1100px 460px at 12% -10%, rgba(0, 160, 220, 0.12), transparent 58%),
        radial-gradient(900px 420px at 105% 15%, rgba(0, 89, 145, 0.10), transparent 55%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Crect x='18' y='22' width='18' height='18' fill='%2300A0DC' opacity='0.09'/%3E%3Crect x='48' y='46' width='11' height='11' fill='%2300A0DC' opacity='0.08'/%3E%3Crect x='68' y='20' width='8' height='8' fill='%23005991' opacity='0.08'/%3E%3Crect x='92' y='60' width='7' height='7' fill='%2300A0DC' opacity='0.07'/%3E%3Crect x='118' y='28' width='12' height='12' fill='%23005991' opacity='0.06'/%3E%3Crect x='136' y='80' width='6' height='6' fill='%2300A0DC' opacity='0.07'/%3E%3C/svg%3E");
    background-repeat: no-repeat, no-repeat, repeat;
}

.auth-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    border-top: 4px solid transparent;
    border-image: var(--gradient-brand) 1;
    padding: 2.25rem 2rem;
}

.auth-card .auth-logo {
    display: block;
    height: 56px;
    width: auto;
    margin: 0 auto 1.25rem;
}

.auth-card h1 {
    font-size: 1.35rem;
    text-align: center;
    margin-bottom: 0.35rem;
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--color-ink-soft);
    font-size: 0.88rem;
    margin-bottom: 1.5rem;
}

.auth-card .auth-links {
    text-align: center;
    margin-top: 1.25rem;
    font-size: 0.9rem;
}

/* --- Panel de facturas --- */
.page-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.page-heading h1 {
    font-size: 1.4rem;
    margin: 0;
}

.page-heading .page-heading-meta {
    color: var(--color-ink-soft);
    font-size: 0.9rem;
}

.tabla-facturas {
    margin: 0;
}

.tabla-facturas thead th {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-ink-soft);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-paper);
    padding: 0.85rem 1rem;
}

.tabla-facturas td {
    padding: 0.9rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border);
}

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

.tabla-facturas tbody tr {
    transition: background-color 0.12s ease;
}

.tabla-facturas tbody tr:hover {
    background: var(--color-accent-light);
}

.tabla-facturas .factura-pendiente {
    box-shadow: inset 3px 0 0 var(--color-danger);
}

.factura-numero {
    font-family: var(--font-mono);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.factura-importe {
    font-family: var(--font-mono);
    font-weight: 600;
}

/* --- Estados (pagada / pendiente) --- */
.badge-estado {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--font-body);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    padding: 0.32rem 0.7rem;
    border-radius: 999px;
}

.badge-estado::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.badge-estado.pagada {
    color: var(--color-success);
    background: var(--color-success-bg);
}

.badge-estado.pendiente {
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

/* --- Detalle de factura --- */
.detalle-factura dt {
    color: var(--color-ink-soft);
    font-size: 0.82rem;
    font-weight: 600;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.detalle-factura dd {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    font-size: 0.98rem;
}

.detalle-factura .detalle-importe {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-ink);
}

/* --- Estado vacío / 404 --- */
.estado-vacio {
    text-align: center;
    padding: 3rem 1.5rem;
}

.estado-vacio .estado-codigo {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.75rem;
}

/* --- Responsive --- */
@media (max-width: 576px) {
    .auth-card {
        padding: 1.75rem 1.35rem;
    }

    .tabla-facturas thead {
        display: none;
    }

    .tabla-facturas td {
        display: block;
        padding: 0.4rem 1rem;
        border-bottom: none;
    }

    .tabla-facturas tr {
        display: block;
        border-bottom: 1px solid var(--color-border);
        padding: 0.6rem 0;
    }
}