/* ═══════════════════════════════════════════════════════
   app.css — Gestor de Credenciales
   Sistema semántico de variables para dark / light mode
   ═══════════════════════════════════════════════════════ */

/* ────────────────────────────────────────
   PALETA FIJA (nunca cambia)
   ──────────────────────────────────────── */
:root {
    --navy-900:  #0a1120;
    --navy-800:  #111b2e;
    --navy-700:  #1a2744;
    --navy-600:  #1e2d4e;
    --navy-500:  #243660;
    --navy-400:  #3d5a9e;
    --navy-300:  #6b88c4;
    --navy-200:  #a8bde0;
    --navy-100:  #dce6f7;
    --navy-50:   #eef3fb;

    --verde:     #10b981;
    --rojo:      #ef4444;
    --amarillo:  #f59e0b;
    --azul-info: #3b82f6;

    --sidebar-w: 220px;
    --navbar-h:  56px;
    --radio:     0.875rem;
}

/* ────────────────────────────────────────
   VARIABLES SEMÁNTICAS — MODO CLARO
   ──────────────────────────────────────── */
:root {
    /* Fondos */
    --bg-app:       #f0f4f8;
    --bg-card:      #ffffff;
    --bg-card-alt:  #f8fafc;
    --bg-input:     #eef3fb;
    --bg-hover:     #eef3fb;
    --bg-stripe:    #f8fafc;

    /* Texto */
    --text-primary:   #1a2744;
    --text-secondary: #1e2d4e;
    --text-muted:     #64748b;
    --text-faint:     #94a3b8;
    --text-inverted:  #ffffff;

    /* Bordes */
    --border:        #e2e8f0;
    --border-subtle: rgba(30,45,78,0.07);
    --border-strong: #c9d6e8;

    /* Acento principal */
    --acento:        #f59e0b;
    --acento-bg:     #fef3c7;
    --acento-text:   #92400e;

    /* Sombras */
    --sombra:    0 2px 16px rgba(17,27,46,0.10);
    --sombra-lg: 0 8px 40px rgba(17,27,46,0.16);

    /* Encabezado de tabla */
    --thead-bg:    #1a2744;
    --thead-text:  rgba(255,255,255,0.88);

    /* Sidebar */
    --sidebar-bg:     #1a2744;
    --sidebar-link:   rgba(255,255,255,0.65);
    --sidebar-hover:  rgba(255,255,255,0.09);
    --sidebar-active: rgba(255,255,255,0.13);
    --sidebar-label:  rgba(255,255,255,0.30);
    --sidebar-border: rgba(255,255,255,0.05);

    /* Navbar */
    --navbar-bg:     #111b2e;
    --navbar-border: rgba(255,255,255,0.06);

    /* Formularios */
    --input-bg:     #eef3fb;
    --input-border: #e2e8f0;
    --input-focus-border: #243660;
    --input-focus-ring:   rgba(30,45,78,0.12);
    --input-text:   #1a2744;
    --input-placeholder: #94a3b8;

    /* Progress */
    --progress-bg: #e2e8f0;

    /* Scrollbar */
    --scrollbar-thumb: #a8bde0;
}

/* ────────────────────────────────────────
   VARIABLES SEMÁNTICAS — MODO OSCURO
   ──────────────────────────────────────── */
[data-tema="oscuro"] {
    /* Fondos */
    --bg-app:       #0d1520;
    --bg-card:      #141f33;
    --bg-card-alt:  #192540;
    --bg-input:     #192540;
    --bg-hover:     #1e2d4e;
    --bg-stripe:    #192540;

    /* Texto */
    --text-primary:   #e4eaf6;
    --text-secondary: #c8d4ec;
    --text-muted:     #7a90b8;
    --text-faint:     #546280;
    --text-inverted:  #0d1520;

    /* Bordes */
    --border:        #2a3d5c;
    --border-subtle: rgba(255,255,255,0.06);
    --border-strong: #374e72;

    /* Acento (más brillante en oscuro) */
    --acento:        #fbbf24;
    --acento-bg:     rgba(251,191,36,0.12);
    --acento-text:   #fde68a;

    /* Sombras */
    --sombra:    0 2px 16px rgba(0,0,0,0.35);
    --sombra-lg: 0 8px 40px rgba(0,0,0,0.50);

    /* Encabezado de tabla */
    --thead-bg:   #0d1520;
    --thead-text: rgba(200,212,236,0.90);

    /* Sidebar (se mantiene oscuro siempre) */
    --sidebar-bg:     #111b2e;
    --sidebar-link:   rgba(200,212,236,0.65);
    --sidebar-hover:  rgba(255,255,255,0.07);
    --sidebar-active: rgba(255,255,255,0.11);
    --sidebar-label:  rgba(200,212,236,0.28);
    --sidebar-border: rgba(255,255,255,0.04);

    /* Navbar */
    --navbar-bg:     #090f1a;
    --navbar-border: rgba(255,255,255,0.05);

    /* Formularios */
    --input-bg:     #192540;
    --input-border: #2a3d5c;
    --input-focus-border: #3d5a9e;
    --input-focus-ring:   rgba(61,90,158,0.20);
    --input-text:   #e4eaf6;
    --input-placeholder: #546280;

    /* Progress */
    --progress-bg: #1e2d4e;

    /* Scrollbar */
    --scrollbar-thumb: #2a3d5c;
}

/* ────────────────────────────────────────
   RESET & BASE
   ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-app);
    color: var(--text-primary);
    font-size: 0.92rem;
    line-height: 1.5;
    transition: background-color 0.28s ease, color 0.2s ease;
}

/* ════════════════════════════════════════
   LOGIN
   ════════════════════════════════════════ */
body.pagina-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: linear-gradient(150deg, var(--navy-900) 0%, var(--navy-600) 50%, var(--navy-500) 100%);
}

body.pagina-login::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 60%, rgba(255,255,255,0.03) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 15%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.tarjeta-login {
    background: var(--bg-card);
    border-radius: 1.5rem;
    box-shadow: var(--sombra-lg);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    animation: aparecerTarjeta 0.45s cubic-bezier(.22,.68,0,1.2) both;
    border: 1px solid var(--border-subtle);
}

@keyframes aparecerTarjeta {
    from { opacity: 0; transform: translateY(24px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0)    scale(1);    }
}

.login-titulo    { font-size: 1.35rem; font-weight: 700; color: var(--text-secondary); text-align: center; }
.login-subtitulo { font-size: 0.875rem; color: var(--text-muted); text-align: center; margin-bottom: 1.75rem; }
.login-footer    { text-align: center; margin-top: 1.25rem; font-size: 0.75rem; color: var(--text-muted); }

/* Campos icono */
.campo-icono { position: relative; margin-bottom: 1rem; }
.campo-icono .icono-izq {
    position: absolute; left: 0.9rem; top: 50%;
    transform: translateY(-50%);
    color: var(--navy-400); font-size: 1rem; pointer-events: none;
}
.campo-icono .form-control {
    padding-left: 2.6rem; padding-right: 2.75rem;
    border-radius: 2rem; border: 1.5px solid var(--input-border);
    background: var(--input-bg); height: 48px; font-size: 0.93rem;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    color: var(--input-text);
}
.campo-icono .form-control:focus {
    border-color: var(--input-focus-border); background: var(--bg-card);
    box-shadow: 0 0 0 3px var(--input-focus-ring); outline: none;
}
.campo-icono .form-control::placeholder { color: var(--input-placeholder); }

.btn-revelar {
    position: absolute; right: 0.7rem; top: 50%;
    transform: translateY(-50%);
    background: none; border: none; color: var(--navy-400);
    cursor: pointer; padding: 0.25rem 0.4rem;
    border-radius: 50%; transition: background 0.2s; font-size: 1rem; line-height: 1;
}
.btn-revelar:hover { background: var(--bg-hover); }

.btn-login {
    width: 100%; height: 48px; border-radius: 2rem;
    background: linear-gradient(90deg, var(--navy-800) 0%, var(--navy-500) 100%);
    border: none; color: #ffffff; font-size: 1rem; font-weight: 600;
    letter-spacing: 0.03em;
    transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(30,45,78,0.38); margin-top: 0.5rem;
}
.btn-login:hover  { opacity: 0.9; transform: translateY(-1px); }
.btn-login:active { transform: translateY(0); }

/* ════════════════════════════════════════
   NAVBAR
   ════════════════════════════════════════ */
.navbar {
    background: var(--navbar-bg) !important;
    border-bottom: 1px solid var(--navbar-border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
    height: var(--navbar-h);
    padding: 0 1rem;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1030;
    transition: background-color 0.28s ease;
}
.navbar-brand {
    font-weight: 700; font-size: 1rem;
    color: #ffffff !important; letter-spacing: 0.01em;
}

/* Botón hamburguesa */
.btn-sidebar-toggle {
    background: none; border: none;
    color: rgba(255,255,255,0.7);
    font-size: 1.3rem; cursor: pointer; padding: 0.25rem 0.5rem;
    border-radius: 0.4rem; transition: background 0.2s, color 0.2s;
    display: none;
}
.btn-sidebar-toggle:hover { background: rgba(255,255,255,0.1); color: #ffffff; }

/* ════════════════════════════════════════
   LAYOUT PRINCIPAL
   ════════════════════════════════════════ */
.app-wrapper {
    display: flex;
    padding-top: var(--navbar-h);
    min-height: 100vh;
}

/* ════════════════════════════════════════
   SIDEBAR
   ════════════════════════════════════════ */
#sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    flex-shrink: 0;
    position: fixed;
    top: var(--navbar-h);
    left: 0;
    height: calc(100vh - var(--navbar-h));
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--sidebar-border);
    transition: transform 0.28s cubic-bezier(.4,0,.2,1), background-color 0.28s ease;
    z-index: 1020;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

#sidebar .nav-link {
    color: var(--sidebar-link);
    border-radius: 0.5rem;
    padding: 0.55rem 1rem;
    font-size: 0.875rem;
    margin: 1px 0.5rem;
    transition: background 0.15s, color 0.15s;
    border-left: 3px solid transparent;
    display: flex; align-items: center;
    white-space: nowrap;
}
#sidebar .nav-link:hover {
    background: var(--sidebar-hover);
    color: #ffffff;
}
#sidebar .nav-link.active {
    background: var(--sidebar-active);
    color: #ffffff;
    font-weight: 600;
    border-left-color: var(--acento);
}
.nav-section-label {
    font-size: 0.68rem; letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sidebar-label);
    padding: 0.7rem 1.5rem 0.2rem;
}

/* Overlay para móvil */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1019;
    backdrop-filter: blur(2px);
}
.sidebar-overlay.activo { display: block; }

/* ════════════════════════════════════════
   CONTENIDO PRINCIPAL
   ════════════════════════════════════════ */
#contenido-principal {
    flex: 1;
    margin-left: var(--sidebar-w);
    padding: 1.5rem;
    min-width: 0;
    transition: margin-left 0.28s cubic-bezier(.4,0,.2,1);
}

/* ════════════════════════════════════════
   COMPONENTES
   ════════════════════════════════════════ */

/* Títulos */
.titulo-seccion {
    font-size: 1.3rem; font-weight: 700; color: var(--text-primary);
}
.subtitulo-seccion {
    font-size: 0.83rem; color: var(--text-muted); margin-bottom: 1.25rem;
}

/* Tarjeta base */
.tarjeta {
    background: var(--bg-card);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    transition: background-color 0.28s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Tarjetas estadísticas */
.tarjeta-stat {
    background: var(--bg-card);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    border: 1px solid var(--border-subtle);
    padding: 1rem 1.25rem;
    display: flex; align-items: center; gap: 0.875rem;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.28s ease;
    height: 100%;
}
.tarjeta-stat:hover { transform: translateY(-2px); box-shadow: var(--sombra-lg); }
.tarjeta-stat .icono-stat {
    width: 48px; height: 48px; border-radius: 0.65rem;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; flex-shrink: 0;
}
.tarjeta-stat .numero-stat {
    font-size: 1.7rem; font-weight: 700; color: var(--text-primary); line-height: 1;
}
.tarjeta-stat .label-stat {
    font-size: 0.78rem; color: var(--text-muted); margin-top: 0.15rem;
}

/* Tabla */
.tabla-gestor {
    background: var(--bg-card);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: background-color 0.28s ease;
}
.tabla-gestor thead th {
    background: var(--thead-bg); color: var(--thead-text);
    font-size: 0.75rem; font-weight: 600;
    letter-spacing: 0.07em; text-transform: uppercase;
    border: none; padding: 0.8rem 1rem; white-space: nowrap;
}
.tabla-gestor tbody td {
    vertical-align: middle; border-color: var(--border);
    padding: 0.7rem 1rem; color: var(--text-primary);
    transition: background-color 0.15s;
}
.tabla-gestor tbody tr:hover td { background: var(--bg-hover); }

/* Botones */
.btn-primary {
    background: var(--navy-600) !important;
    border-color: var(--navy-600) !important;
    color: #ffffff !important;
    transition: background 0.2s, transform 0.15s !important;
}
.btn-primary:hover {
    background: var(--navy-500) !important;
    border-color: var(--navy-500) !important;
    transform: translateY(-1px);
}
.btn-outline-primary {
    color: var(--navy-400) !important;
    border-color: var(--navy-400) !important;
}
.btn-outline-primary:hover {
    background: var(--navy-400) !important;
    color: #ffffff !important;
}

/* En modo oscuro los btn-outline se adaptan */
[data-tema="oscuro"] .btn-outline-primary {
    color: var(--navy-300) !important;
    border-color: var(--navy-300) !important;
}
[data-tema="oscuro"] .btn-outline-primary:hover {
    background: var(--navy-300) !important;
    color: var(--navy-900) !important;
}
[data-tema="oscuro"] .btn-outline-danger {
    color: #f87171 !important;
    border-color: #f87171 !important;
}
[data-tema="oscuro"] .btn-outline-danger:hover {
    background: rgba(248,113,113,0.15) !important;
}
[data-tema="oscuro"] .btn-outline-success {
    color: #34d399 !important;
    border-color: #34d399 !important;
}
[data-tema="oscuro"] .btn-outline-success:hover {
    background: rgba(52,211,153,0.15) !important;
}
[data-tema="oscuro"] .btn-outline-secondary {
    color: var(--text-muted) !important;
    border-color: var(--border) !important;
}
[data-tema="oscuro"] .btn-outline-secondary:hover {
    background: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

/* Botón revelar en tabla */
.btn-revelar-tabla {
    background: none;
    border: 1px solid var(--border);
    border-radius: 0.4rem; color: var(--navy-400);
    padding: 0.2rem 0.55rem; font-size: 0.8rem;
    cursor: pointer; transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}
.btn-revelar-tabla:hover {
    background: var(--bg-hover);
    border-color: var(--navy-400);
}
[data-tema="oscuro"] .btn-revelar-tabla {
    color: var(--navy-300);
    border-color: var(--border);
}
[data-tema="oscuro"] .btn-revelar-tabla:hover {
    background: var(--bg-hover);
}

/* Formularios */
.form-control,
.form-select {
    background: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--input-text) !important;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s !important;
}
.form-control::placeholder { color: var(--input-placeholder) !important; }
.form-control:focus,
.form-select:focus {
    background: var(--bg-card) !important;
    border-color: var(--input-focus-border) !important;
    box-shadow: 0 0 0 3px var(--input-focus-ring) !important;
    color: var(--input-text) !important;
    outline: none !important;
}
.input-group-text {
    background: var(--bg-card-alt) !important;
    border-color: var(--input-border) !important;
    color: var(--text-muted) !important;
}
.form-label.fw-semibold { color: var(--text-secondary); font-size: 0.875rem; }
.form-check-label { color: var(--text-primary); }

/* Alerts flash */
.alert-success { border-left: 4px solid var(--verde) !important; }
.alert-danger  { border-left: 4px solid var(--rojo) !important; }
.alert-warning { border-left: 4px solid var(--amarillo) !important; }
.alert-info    { border-left: 4px solid var(--azul-info) !important; }

[data-tema="oscuro"] .alert {
    background: var(--bg-card-alt) !important;
    color: var(--text-primary) !important;
    border-color: var(--border) !important;
}
[data-tema="oscuro"] .alert-success {
    background: rgba(16,185,129,0.10) !important;
    border-left-color: var(--verde) !important;
    color: #6ee7b7 !important;
}
[data-tema="oscuro"] .alert-danger {
    background: rgba(239,68,68,0.10) !important;
    border-left-color: var(--rojo) !important;
    color: #fca5a5 !important;
}
[data-tema="oscuro"] .alert-warning {
    background: rgba(245,158,11,0.10) !important;
    border-left-color: var(--amarillo) !important;
    color: #fde68a !important;
}
[data-tema="oscuro"] .alert-info {
    background: rgba(59,130,246,0.10) !important;
    border-left-color: var(--azul-info) !important;
    color: #93c5fd !important;
}

/* Progress */
.progress { background: var(--progress-bg) !important; border-radius: 1rem; }

/* Monospace */
.font-monospace {
    font-family: 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.85rem;
}

/* Text-muted se adapta */
.text-muted { color: var(--text-muted) !important; }

/* Badges de Bootstrap en modo oscuro */
[data-tema="oscuro"] .badge.bg-light  { background: var(--bg-hover) !important; color: var(--text-primary) !important; }
[data-tema="oscuro"] .badge.bg-white  { background: var(--bg-card-alt) !important; color: var(--text-primary) !important; }
[data-tema="oscuro"] .bg-light,
[data-tema="oscuro"] .bg-white        { background: var(--bg-card-alt) !important; }

/* Bordes en oscuro */
[data-tema="oscuro"] .border,
[data-tema="oscuro"] .border-bottom,
[data-tema="oscuro"] .border-top      { border-color: var(--border) !important; }

/* List group */
[data-tema="oscuro"] .list-group-item {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text-primary);
}

/* Modal en oscuro */
[data-tema="oscuro"] .modal-content {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border);
}
[data-tema="oscuro"] .modal-header,
[data-tema="oscuro"] .modal-footer {
    border-color: var(--border) !important;
}

/* SweetAlert2 en oscuro */
[data-tema="oscuro"] .swal2-popup {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    box-shadow: var(--sombra-lg) !important;
}
[data-tema="oscuro"] .swal2-title { color: var(--text-primary) !important; }
[data-tema="oscuro"] .swal2-html-container { color: var(--text-secondary) !important; }
[data-tema="oscuro"] .swal2-icon.swal2-warning { border-color: var(--amarillo) !important; color: var(--amarillo) !important; }
[data-tema="oscuro"] .swal2-icon.swal2-error   { border-color: #f87171 !important; color: #f87171 !important; }
[data-tema="oscuro"] .swal2-icon.swal2-success  { border-color: #34d399 !important; color: #34d399 !important; }
[data-tema="oscuro"] .swal2-icon.swal2-question { border-color: var(--navy-300) !important; color: var(--navy-300) !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

/* ════════════════════════════════════════
   RESPONSIVE — TABLET (< 992px)
   ════════════════════════════════════════ */
@media (max-width: 991.98px) {
    .btn-sidebar-toggle { display: inline-flex !important; align-items: center; }

    #sidebar {
        transform: translateX(calc(-1 * var(--sidebar-w)));
    }
    #sidebar.abierto {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0,0,0,0.40);
    }

    #contenido-principal {
        margin-left: 0 !important;
        padding: 1rem;
    }

    .titulo-seccion { font-size: 1.15rem; }

    .tabla-gestor { border-radius: 0.75rem; }
    .tabla-gestor thead th { font-size: 0.7rem; padding: 0.65rem 0.75rem; }
    .tabla-gestor tbody td { padding: 0.6rem 0.75rem; font-size: 0.83rem; }

    .col-tablet-hide { display: none !important; }
}

/* ════════════════════════════════════════
   RESPONSIVE — MÓVIL (< 576px)
   ════════════════════════════════════════ */
@media (max-width: 575.98px) {
    :root { --navbar-h: 52px; }

    .tarjeta-login { padding: 1.75rem 1.25rem; border-radius: 1.25rem; }
    .login-titulo  { font-size: 1.2rem; }

    #contenido-principal { padding: 0.75rem; }

    .tarjeta { padding: 1rem; margin-bottom: 1rem; }

    .tarjeta-stat { padding: 0.875rem 1rem; }
    .tarjeta-stat .icono-stat { width: 42px; height: 42px; font-size: 1.2rem; }

    .titulo-seccion { font-size: 1.05rem; }

    .col-movil-hide { display: none !important; }

    .row > [class*='col-'] { padding-left: 0.5rem; padding-right: 0.5rem; }

    .btn { font-size: 0.85rem; padding: 0.4rem 0.75rem; }
    .btn-sm { font-size: 0.78rem; }

    .navbar { padding: 0 0.75rem; }
    .navbar-brand { font-size: 0.9rem; }

    .swal2-popup { font-size: 0.9rem !important; max-width: 90vw !important; }
}

/* ════════════════════════════════════════
   UTILIDADES
   ════════════════════════════════════════ */
.text-navy      { color: var(--navy-400) !important; }
.bg-navy        { background: var(--navy-600) !important; }
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Transición global suave al cambiar tema */
.tarjeta, .tarjeta-stat, .tabla-gestor,
.form-control, .form-select, .input-group-text,
#sidebar, .navbar, #contenido-principal,
.alert, .badge, .btn, .progress {
    transition: background-color 0.28s ease, color 0.2s ease, border-color 0.2s ease !important;
}