/* =========================================================================
   SISTEMA DE CRÉDITOS Y PRÉSTAMOS — Estilo "Ledger"
   Paleta: graphite-navy + teal de confianza + señales ámbar/coral/oro
   Tipografía: Space Grotesk (títulos) / Inter (UI) / IBM Plex Mono (montos)
   ========================================================================= */

:root {
    --ink: #12181F;
    --surface: #1A2129;
    --surface-2: #212A34;
    --surface-3: #29323D;
    --border: #303B47;

    --text: #E7ECF2;
    --text-muted: #8B97A6;
    --text-faint: #5C6774;

    --accent: #2F6F5E;
    --accent-bright: #3E9A80;
    --gold: #C9A24B;

    --positivo: #4FAE8C;
    --pendiente: #D98E3B;
    --negativo: #C4574A;

    --radius: 10px;
    --shadow: 0 8px 24px rgba(0,0,0,0.35);

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

/* Tema claro: mismo sistema "ledger", en papel en vez de graphite.
   Se activa poniendo data-theme="light" en <html> (ver app.js). */
html[data-theme="light"] {
    --ink: #EEF2F1;
    --surface: #FFFFFF;
    --surface-2: #F4F6F5;
    --surface-3: #E9EDEC;
    --border: #D7DEDC;

    --text: #12181F;
    --text-muted: #5C6774;
    --text-faint: #8B97A6;

    --accent: #2F6F5E;
    --accent-bright: #25604F;
    --gold: #8F6B23;

    --positivo: #2E8F6C;
    --pendiente: #B36F1E;
    --negativo: #B14536;

    --shadow: 0 8px 24px rgba(18,24,31,0.08);
}

html{transition:background-color .15s ease;}
body,.sidebar,.card-ledger,.stat-card,.money-card,.login-card,.form-control,.form-select{transition:background-color .15s ease, border-color .15s ease, color .15s ease;}

* { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    background: var(--ink);
    color: var(--text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .display {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
    font-weight: 600;
    margin: 0;
}

.mono, .money, .ledger-value { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

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

/* ---------- Ledger tape: elemento distintivo del sistema ---------- */
.ledger-tape {
    background-image: repeating-linear-gradient(
        to bottom,
        var(--border) 0px, var(--border) 2px,
        transparent 2px, transparent 10px
    );
    width: 2px;
}

/* ---------- Layout de la app ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    z-index: 40;
}

.sidebar-brand {
    padding: 22px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand .mark {
    width: 30px; height: 30px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--accent), var(--accent-bright));
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-weight: 700; font-size: 14px; color: #fff;
}
.sidebar-brand .name { font-family: var(--font-display); font-weight: 600; font-size: 16px; }
.sidebar-brand .name small { display: block; font-family: var(--font-body); font-size: 11px; color: var(--text-muted); font-weight: 400; }

.nav-group { padding: 14px 10px; flex: 1; overflow-y: auto; }
.nav-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); padding: 10px 12px 6px; }
.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: 8px;
    color: var(--text-muted); font-size: 14px; font-weight: 500;
    margin-bottom: 2px;
}
.nav-link:hover { background: var(--surface-2); color: var(--text); }
.nav-link.active { background: var(--surface-2); color: var(--accent-bright); box-shadow: inset 2px 0 0 var(--accent-bright); }
.nav-link .ico { width: 18px; text-align: center; opacity: .85; }

.sidebar-footer { padding: 14px 16px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-muted); }
.sidebar-footer a { color: var(--text-muted); }
.sidebar-footer a:hover { color: var(--negativo); }

.main {
    margin-left: 240px;
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 64px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px;
    border-bottom: 1px solid var(--border);
    background: rgba(26,33,41,0.7);
    backdrop-filter: blur(6px);
    position: sticky; top: 0; z-index: 30;
}
.topbar .title { font-family: var(--font-display); font-size: 18px; font-weight: 600; }
.topbar .user-chip { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-muted); }

.content { padding: 24px; flex: 1; }

/* ---------- Cards / ledger rows ---------- */
.card-ledger {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    position: relative;
    overflow: hidden;
}
.stat-card .eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-muted); }
.stat-card .value { font-family: var(--font-mono); font-size: 26px; font-weight: 600; margin-top: 6px; }
.stat-card.positivo .value { color: var(--positivo); }
.stat-card.pendiente .value { color: var(--pendiente); }
.stat-card.negativo .value { color: var(--negativo); }
.stat-card.gold .value { color: var(--gold); }

.money-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.money-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 3px solid var(--gold);
    border-radius: var(--radius);
    padding: 18px 20px;
}
.money-card .label { font-size: 12px; color: var(--text-muted); }
.money-card .amount { font-family: var(--font-mono); font-size: 28px; font-weight: 600; color: var(--gold); margin-top: 4px; }

/* ---------- Botones y formularios ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 16px; border-radius: 8px;
    font-family: var(--font-body); font-size: 14px; font-weight: 600;
    border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-bright); color: #fff; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent-bright); color: var(--accent-bright); }

.form-control, .form-select {
    width: 100%;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    padding: 10px 12px;
    font-family: var(--font-body);
    font-size: 14px;
}
.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent-bright);
    box-shadow: 0 0 0 3px rgba(62,154,128,0.18);
}
label { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; display: block; }

/* ---------- Login ---------- */
.login-wrap {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: radial-gradient(circle at 20% 20%, #17222b 0%, var(--ink) 55%);
    padding: 20px;
}
.login-card {
    width: 100%; max-width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 36px 32px;
    box-shadow: var(--shadow);
    position: relative;
}
.login-card::before {
    content: "";
    position: absolute; left: 0; top: 24px; bottom: 24px; width: 2px;
    background-image: repeating-linear-gradient(to bottom, var(--gold) 0px, var(--gold) 2px, transparent 2px, transparent 9px);
    opacity: .6;
}
.login-brand { text-align: center; margin-bottom: 26px; }
.login-brand .mark {
    width: 46px; height: 46px; margin: 0 auto 12px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-bright));
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-weight: 700; color: #fff; font-size: 18px;
}
.login-brand h1 { font-size: 19px; }
.login-brand p { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

.alert-error {
    background: rgba(196,87,74,0.12);
    border: 1px solid var(--negativo);
    color: #F0B3AC;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}

/* ---------- Badges de estado ---------- */
.badge-estado { font-family: var(--font-mono); font-size: 11px; padding: 3px 9px; border-radius: 20px; text-transform: uppercase; letter-spacing: .04em; }
.badge-activo { background: rgba(79,174,140,0.15); color: var(--positivo); }
.badge-cancelado { background: rgba(139,151,166,0.15); color: var(--text-muted); }
.badge-anulado { background: rgba(196,87,74,0.15); color: var(--negativo); }
.badge-refinanciado { background: rgba(217,142,59,0.15); color: var(--pendiente); }

/* ---------- Mobile ---------- */
.mobile-toggle { display: none; }

/* ---------- Selector de tema ---------- */
.theme-toggle {
    width: 36px; height: 36px; border-radius: 8px;
    background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
    display: flex; align-items: center; justify-content: center; font-size: 15px;
}
.theme-toggle:hover { border-color: var(--accent-bright); }
.login-theme-toggle { position: absolute; top: 18px; right: 18px; }

@media (max-width: 900px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .money-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform .25s ease; width: 260px; }
    .sidebar.open { transform: translateX(0); }
    .main { margin-left: 0; }
    .mobile-toggle {
        display: inline-flex; align-items: center; justify-content: center;
        width: 36px; height: 36px; border-radius: 8px;
        background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
    }
    .content { padding: 16px; }
    .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat-card .value { font-size: 20px; }
}

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


/* Código para forzar el modo oscuro cuando el body cambia *//*
body.dark-theme {
    background-color: #121212 !important;
    color: #e0e0e0 !important;
}*/

    /* Cambiar el fondo de la tarjeta de Login */
 /*   body.dark-theme .login-card {
        background-color: #1e1e1e !important;
        border-color: #333333 !important;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5) !important;
    }*/

    /* Cambiar los títulos y textos descriptivos */
  /*  body.dark-theme h1,
    body.dark-theme p,
    body.dark-theme label {
        color: #ffffff !important;
    }*/

    /* Cambiar las cajas de texto (Inputs) para que no deslumbren */
   /* body.dark-theme .form-control {
        background-color: #2d2d2d !important;
        color: #ffffff !important;
        border-color: #444444 !important;
    }

        body.dark-theme .form-control::placeholder {
            color: #888888 !important;
        }
        */
    /* Cambiar los enlaces */
   /* body.dark-theme a {
        color: #3b9eff !important;
    }*/

/* Ajustar el botón flotante del tema para que resalte en la oscuridad *//*
.theme-toggle {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.2s ease;
}

    .theme-toggle:hover {
        transform: scale(1.1);
    }
*/