/* ==========================================================================
   Banco Demo — hoja de estilos (design tokens inferidos de las capturas).
   Réplica del LOOK & FEEL, no de activos de marca. Marca "DEMO / PoC".
   ========================================================================== */

:root {
    /* Paleta */
    --color-primary: #ec0000;       /* rojo de marca (botones, acentos) */
    --color-primary-dark: #cc0000;  /* hover */
    --color-primary-darker: #b30000;
    --color-accent: #117e8a;        /* teal de login/enlaces */
    --color-accent-dark: #0d626b;

    --color-text: #1a1a1a;
    --color-text-soft: #555a5e;
    --color-text-muted: #767676;

    --color-bg: #ffffff;
    --color-bg-soft: #f5f6f7;
    --color-bg-mute: #eceef0;
    --color-border: #e0e2e4;
    --color-border-strong: #c4c7ca;

    --color-success-bg: #e7f5ec;
    --color-success-fg: #1c7a3f;
    --color-error-bg: #fdeaea;
    --color-error-fg: #c0190f;
    --color-warning-bg: #fff6e0;
    --color-warning-fg: #8a6100;

    /* Tipografía */
    --font-sans: "Poppins", "Open Sans", -apple-system, BlinkMacSystemFont,
        "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Espaciado / radios / sombras */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, .08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, .14);

    --container: 1140px;
    --header-h: 72px;
}

/* --- Reset ligero ------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.55;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.15; font-weight: var(--fw-bold); margin: 0 0 var(--space-4); letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
p { margin: 0 0 var(--space-4); }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

/* --- Distintivo DEMO ---------------------------------------------------- */
.demo-banner {
    background: repeating-linear-gradient(
        45deg, #1a1a1a, #1a1a1a 12px, #2a2a2a 12px, #2a2a2a 24px);
    color: #fff;
    text-align: center;
    font-size: .8rem;
    font-weight: var(--fw-semibold);
    letter-spacing: .03em;
    padding: 6px var(--space-4);
}
.demo-banner strong { color: #ffd34d; }

.demo-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-warning-bg);
    color: var(--color-warning-fg);
    border: 1px solid #f0d27a;
    border-radius: var(--radius-pill);
    padding: 4px 12px;
    font-size: .78rem;
    font-weight: var(--fw-semibold);
}

/* --- Cabecera ----------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: var(--space-5);
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: var(--fw-bold);
    font-size: 1.4rem;
    color: var(--color-text);
}
.brand:hover { text-decoration: none; }
.brand__flame { width: 30px; height: 30px; flex: none; }
.brand__name { color: var(--color-text); }

.main-nav { display: flex; gap: var(--space-5); margin-left: var(--space-4); }
.main-nav a {
    color: var(--color-text);
    font-weight: var(--fw-medium);
    font-size: .95rem;
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--color-primary); text-decoration: none; border-bottom-color: var(--color-primary); }
.main-nav__mobile-cta { display: none; }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-4); }
.header-actions__link { color: var(--color-text); font-weight: var(--fw-medium); font-size: .95rem; }

.nav-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    padding: 8px; margin-left: auto;
}
.nav-toggle span {
    display: block; width: 24px; height: 2px; background: var(--color-text);
    margin: 5px 0; transition: .2s;
}

/* --- Botones ------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-weight: var(--fw-semibold);
    font-size: 1rem;
    line-height: 1;
    padding: 13px 26px;
    border-radius: var(--radius-pill);
    border: 2px solid transparent;
    cursor: pointer;
    transition: background-color .15s, color .15s, border-color .15s, transform .05s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn--ghost { background: #fff; color: var(--color-text); border-color: var(--color-border-strong); }
.btn--ghost:hover { border-color: var(--color-text); }
.btn--block { width: 100%; }
.btn--lg { padding: 16px 32px; font-size: 1.05rem; }
.btn--sm { padding: 8px 16px; font-size: .88rem; }
.btn--danger { background: transparent; color: var(--color-error-fg); border-color: var(--color-error-fg); }
.btn--danger:hover { background: var(--color-error-fg); color: #fff; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.btn.is-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: .9;
}
.btn__spinner {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, .45);
    border-top-color: #fff;
    animation: btn-spin .75s linear infinite;
    flex: 0 0 auto;
}
@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

/* --- Hero --------------------------------------------------------------- */
.hero {
    position: relative;
    background:
        linear-gradient(100deg, rgba(180, 20, 20, .92) 0%, rgba(210, 60, 50, .78) 45%, rgba(225, 110, 95, .55) 100%),
        radial-gradient(circle at 75% 40%, #d96a5a, #a81f1f 75%);
    color: #fff;
    overflow: hidden;
}
.hero__inner { padding: var(--space-8) 0; max-width: 620px; }
.hero__eyebrow {
    text-transform: uppercase;
    letter-spacing: .12em;
    font-size: .82rem;
    font-weight: var(--fw-semibold);
    opacity: .9;
    margin-bottom: var(--space-4);
}
.hero h1 { color: #fff; margin-bottom: var(--space-4); }
.hero__lead { font-size: 1.15rem; opacity: .95; margin-bottom: var(--space-5); }
.hero__list { list-style: none; padding: 0; margin: 0 0 var(--space-6); }
.hero__list li { display: flex; gap: 10px; align-items: baseline; margin-bottom: var(--space-2); }
.hero__list li::before { content: "✓"; color: #fff; font-weight: var(--fw-bold); }
.hero__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero__actions .btn--primary { background: #fff; color: var(--color-primary); }
.hero__actions .btn--primary:hover { background: #f1f1f1; }
.hero__actions .btn--outline { color: #fff; border-color: #fff; }
.hero__actions .btn--outline:hover { background: #fff; color: var(--color-primary); }

/* --- Barra de riesgo (estilo captura) ----------------------------------- */
.risk-bar { border-bottom: 1px solid var(--color-border); background: #fff; }
.risk-bar__inner { display: grid; grid-template-columns: 1fr 2fr; gap: 0; }
.risk-bar__cell { padding: var(--space-4) var(--space-5); font-size: .82rem; color: var(--color-text-soft); }
.risk-bar__cell + .risk-bar__cell { border-left: 1px solid var(--color-border); }
.risk-bar__score { font-size: 1.5rem; font-weight: var(--fw-bold); color: var(--color-text); }
.risk-bar__score span { color: var(--color-text-muted); font-weight: var(--fw-medium); }

/* --- Secciones ---------------------------------------------------------- */
.section { padding: var(--space-8) 0; }
.section--soft { background: var(--color-bg-soft); }
.section__head { text-align: center; max-width: 680px; margin: 0 auto var(--space-7); }
.section__head p { color: var(--color-text-soft); font-size: 1.05rem; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.feature-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: box-shadow .2s, transform .2s;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-card__icon {
    width: 48px; height: 48px; border-radius: var(--radius-md);
    background: #fdecec; color: var(--color-primary);
    display: grid; place-items: center; margin-bottom: var(--space-4);
}
.feature-card h3 { font-size: 1.2rem; }
.feature-card p { color: var(--color-text-soft); margin: 0; }

/* --- Layout de autenticación (split como la captura de login) ----------- */
.auth-split { display: grid; grid-template-columns: 1fr 1fr; min-height: calc(100vh - var(--header-h)); }
.auth-split__art {
    position: relative;
    background:
        linear-gradient(160deg, rgba(120, 170, 80, .25), rgba(90, 140, 200, .35)),
        radial-gradient(circle at 30% 30%, #9bc36a, #6ea7c7 80%);
    color: #fff;
    display: flex; align-items: flex-end;
    padding: var(--space-7);
}
.auth-split__art h2 { color: #fff; font-size: 2.5rem; }
.auth-split__panel { display: flex; align-items: center; justify-content: center; padding: var(--space-7) var(--space-5); }
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { font-size: 2.1rem; margin-bottom: var(--space-6); }
.auth-card__sub { color: var(--color-text-soft); margin-top: calc(-1 * var(--space-4)); margin-bottom: var(--space-6); }

/* --- Formularios -------------------------------------------------------- */
.form-group { margin-bottom: var(--space-5); }
.form-group label { display: block; font-weight: var(--fw-medium); font-size: .92rem; margin-bottom: var(--space-2); color: var(--color-text); }
.form-control {
    width: 100%;
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 13px 14px;
    transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(17, 126, 138, .15);
}
.form-control::placeholder { color: #9aa0a4; }
.form-hint { font-size: .82rem; color: var(--color-text-muted); margin-top: var(--space-2); }
.form-check { display: flex; align-items: center; gap: 10px; margin-bottom: var(--space-5); }
.form-check input { width: 18px; height: 18px; accent-color: var(--color-primary); }
.form-check label { margin: 0; font-weight: var(--fw-regular); font-size: .95rem; }
.form-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-5); flex-wrap: wrap; gap: var(--space-3); }
.link-accent { color: var(--color-accent); font-weight: var(--fw-semibold); }
.form-foot { text-align: center; margin-top: var(--space-5); color: var(--color-text-soft); }

/* --- Alertas ------------------------------------------------------------ */
.alert { border-radius: var(--radius-sm); padding: var(--space-3) var(--space-4); margin-bottom: var(--space-5); font-size: .95rem; border: 1px solid transparent; }
.alert--error { background: var(--color-error-bg); color: var(--color-error-fg); border-color: #f3c4c0; }
.alert--success { background: var(--color-success-bg); color: var(--color-success-fg); border-color: #bfe3cc; }
.alert--warning { background: var(--color-warning-bg); color: var(--color-warning-fg); border-color: #f0d896; }
.alert ul { margin: 0; padding-left: 1.1rem; }

/* --- Tarjetas / contenido centrado -------------------------------------- */
.narrow { max-width: 560px; margin: 0 auto; }
.card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}
.page-pad { padding: var(--space-7) 0; }

/* --- 2FA / QR ----------------------------------------------------------- */
.qr-box { text-align: center; }
.qr-box img { margin: 0 auto var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 10px; background: #fff; }
.secret-code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: var(--color-bg-mute);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    letter-spacing: .15em;
    font-size: 1.05rem;
    display: inline-block;
    word-break: break-all;
}
.code-input {
    letter-spacing: .5em;
    text-align: center;
    font-size: 1.5rem;
    font-family: ui-monospace, monospace;
}
.backup-list {
    list-style: none; padding: var(--space-4); margin: var(--space-4) 0;
    background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius-md);
    display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-2);
    font-family: ui-monospace, monospace; letter-spacing: .08em;
}
.backup-list li { padding: 4px 8px; }

/* --- Tabla de dispositivos --------------------------------------------- */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.data-table th, .data-table td { text-align: left; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); }
.data-table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--color-text-muted); }
.data-table tr:last-child td { border-bottom: none; }
.badge { display: inline-block; font-size: .74rem; font-weight: var(--fw-semibold); padding: 3px 9px; border-radius: var(--radius-pill); }
.badge--current { background: var(--color-success-bg); color: var(--color-success-fg); }
.ua-cell { max-width: 280px; color: var(--color-text-soft); font-size: .86rem; }

/* --- Dashboard ---------------------------------------------------------- */
.dash-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-top: var(--space-6); }
.stat-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-sm); }
.stat-card small { color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .04em; font-size: .74rem; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: var(--fw-bold); margin: var(--space-2) 0; }
.account-balance { font-size: 2.6rem; font-weight: var(--fw-bold); color: var(--color-text); }

/* --- Pie ---------------------------------------------------------------- */
.site-footer { background: #1a1a1a; color: #cfd2d4; padding: var(--space-7) 0 var(--space-5); margin-top: auto; font-size: .9rem; }
.site-footer a { color: #cfd2d4; }
.site-footer a:hover { color: #fff; }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-6); margin-bottom: var(--space-6); }
.footer-cols h4 { color: #fff; font-size: .95rem; margin-bottom: var(--space-3); }
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: var(--space-2); }
.footer-bottom { border-top: 1px solid #333; padding-top: var(--space-4); color: #8b8f92; font-size: .82rem; }

/* --- Página app (sticky footer) ----------------------------------------- */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }
.app-main { flex: 1; }

/* --- Utilidades --------------------------------------------------------- */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-5); }
.mb-4 { margin-bottom: var(--space-5); }
.muted { color: var(--color-text-muted); }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); flex-wrap: wrap; }

/* --- Responsive --------------------------------------------------------- */
@media (max-width: 860px) {
    .main-nav { display: none; }
    .main-nav.is-open {
        display: flex; flex-direction: column; gap: 0;
        position: absolute; top: var(--header-h); left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--color-border);
        padding: var(--space-3) var(--space-5); margin: 0;
        box-shadow: var(--shadow-md);
    }
    .main-nav.is-open > a {
        padding: 12px 0;
        border-bottom: 1px solid var(--color-border);
    }
    .main-nav.is-open > a:hover { border-bottom-color: var(--color-border); }
    .main-nav.is-open .main-nav__mobile-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-bottom: var(--space-2);
        padding: 11px 18px;
        border: 0;
        border-radius: var(--radius-pill);
        background: var(--color-primary);
        color: #fff;
        font-weight: var(--fw-semibold);
    }
    .main-nav.is-open .main-nav__mobile-cta:hover {
        background: var(--color-primary-dark);
        border: 0;
        color: #fff;
    }
    .header-actions { gap: var(--space-2); }
    .header-actions__link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 34px;
        padding: 8px 14px;
        border-radius: var(--radius-pill);
        background: var(--color-primary);
        color: #fff;
        font-size: .86rem;
        font-weight: var(--fw-semibold);
        line-height: 1;
        white-space: nowrap;
    }
    .header-actions__link:hover {
        background: var(--color-primary-dark);
        color: #fff;
        text-decoration: none;
    }
    .header-actions .btn--primary { padding: 8px 14px; }
    .nav-toggle { display: block; }
    .feature-grid, .dash-grid { grid-template-columns: 1fr; }
    .auth-split { grid-template-columns: 1fr; }
    .auth-split__art { display: none; }
    .risk-bar__inner { grid-template-columns: 1fr; }
    .risk-bar__cell + .risk-bar__cell { border-left: none; border-top: 1px solid var(--color-border); }
    .footer-cols { grid-template-columns: 1fr; }
    .backup-list { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
    .site-header__inner { gap: var(--space-3); }
    .brand { gap: 8px; font-size: 1.15rem; }
    .brand__flame { width: 26px; height: 26px; }
    .header-actions .btn--primary {
        display: none;
    }
    .header-actions__link { padding: 8px 12px; font-size: .82rem; }
}

/* Modal de confirmación (sustituye a window.confirm nativo). */
.confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(15, 18, 20, .5);
    backdrop-filter: blur(2px);
}
.confirm-overlay[hidden] { display: none; }
.confirm-dialog {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 22px 22px 16px;
}
.confirm-dialog__title {
    margin: 0 0 6px;
    font-size: 1.1rem;
    font-weight: var(--fw-semibold);
    color: var(--color-text);
}
.confirm-dialog__msg {
    margin: 0 0 18px;
    font-size: .92rem;
    line-height: 1.5;
    color: var(--color-text-soft);
}
.confirm-dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}