/* ════════════════════════════════════════════════════════════
   Cloud POS — Liquid Glass UI
   Estética Apple: minimalista, vidrio translúcido (backdrop-filter),
   tipografía del sistema (SF), esquinas suaves y mucho aire.
   ════════════════════════════════════════════════════════════ */

:root {
    /* Texto */
    --c-text:      #1d1d1f;   /* casi negro Apple */
    --c-muted:     #6e6e73;
    --c-faint:     #86868b;

    /* Acento */
    --c-primary:   #0071e3;   /* azul Apple */
    --c-primary-d: #0077ed;
    --c-success:   #34c759;
    --c-danger:    #ff3b30;
    --c-warning:   #ff9f0a;

    /* Vidrio */
    --glass:        rgba(255, 255, 255, 0.62);
    --glass-strong: rgba(255, 255, 255, 0.78);
    --glass-border: rgba(255, 255, 255, 0.55);
    --hairline:     rgba(0, 0, 0, 0.08);
    --blur:         saturate(180%) blur(20px);

    /* Profundidad */
    --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.04);
    --shadow:    0 4px 24px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.04);
    --shadow-lg: 0 12px 48px rgba(0,0,0,.16);

    /* Alias de compatibilidad (estilos en línea de las vistas) */
    --c-bg:      #f5f5f7;
    --c-surface: #ffffff;
    --c-border:  rgba(0, 0, 0, 0.08);

    --radius:    20px;
    --radius-sm: 13px;
    --pill:      980px;
    --header-h:  60px;
    --sidebar-w: 252px;
    --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
            "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font);
    color: var(--c-text);
    font-size: 14px;
    line-height: 1.47;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    /* Fondo claro con sutiles halos de color para que el vidrio tenga qué difuminar */
    background-color: #f5f5f7;
    background-image:
        radial-gradient(60vw 60vw at 12% -8%, rgba(10,132,255,.14), transparent 60%),
        radial-gradient(48vw 48vw at 98% 6%, rgba(175,82,222,.12), transparent 55%),
        radial-gradient(50vw 50vw at 70% 108%, rgba(48,209,88,.10), transparent 55%);
    background-attachment: fixed;
    min-height: 100vh;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-d); }

/* ── Layout ───────────────────────────────────────────────── */
.app__body { display: flex; min-height: calc(100vh - var(--header-h)); }
.app__main { flex: 1; padding: 1.75rem; min-width: 0; max-width: 100%; }

/* ── Topbar (barra de vidrio fija) ────────────────────────── */
.topbar {
    height: var(--header-h);
    background: var(--glass);
    -webkit-backdrop-filter: var(--blur);
    backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--hairline);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 1.25rem; position: sticky; top: 0; z-index: 30;
}
.topbar__left, .topbar__right { display: flex; align-items: center; gap: .85rem; }
.topbar__toggle { display: none; background: none; border: 0; font-size: 1.3rem; cursor: pointer; color: var(--c-text); }
.topbar__brand { display: flex; align-items: center; gap: .55rem; color: var(--c-text); font-weight: 600; letter-spacing: -0.02em; }
.topbar__logo { font-size: 1.25rem; }
.topbar__company {
    padding: .3rem .75rem; background: rgba(0,0,0,.05); border-radius: var(--pill);
    font-size: .78rem; color: var(--c-muted); font-weight: 500;
}

/* Selector de sucursal */
.branch-switch { display: flex; align-items: center; gap: .5rem; margin: 0; }
.branch-switch__type { font-size: .68rem; text-transform: uppercase; letter-spacing: .05em; color: var(--c-faint); font-weight: 600; }
.branch-switch__select {
    border: 1px solid var(--hairline); border-radius: var(--pill); padding: .4rem .85rem;
    background: var(--glass-strong); font: inherit; cursor: pointer; color: var(--c-text);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}

/* Menú de usuario */
.usermenu { position: relative; }
.usermenu__btn {
    display: flex; align-items: center; gap: .5rem; background: none; border: 1px solid transparent;
    padding: .3rem .55rem; border-radius: var(--pill); cursor: pointer; font: inherit; transition: background .15s;
}
.usermenu__btn:hover { background: rgba(0,0,0,.05); }
.usermenu__avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: linear-gradient(135deg, #0a84ff, #0071e3); color: #fff;
    display: grid; place-items: center; font-weight: 600; text-transform: uppercase; font-size: .85rem;
}
.usermenu__name { font-weight: 500; }
.usermenu__caret { color: var(--c-faint); font-size: .7rem; }
.usermenu__panel {
    position: absolute; right: 0; top: calc(100% + .5rem); min-width: 240px;
    background: var(--glass-strong); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg); padding: .4rem; display: none; z-index: 40;
}
.usermenu.is-open .usermenu__panel { display: block; animation: pop .18s ease; }
@keyframes pop { from { opacity: 0; transform: translateY(-6px) scale(.98); } to { opacity: 1; transform: none; } }
.usermenu__head { padding: .55rem .7rem; border-bottom: 1px solid var(--hairline); margin-bottom: .3rem; }
.usermenu__head small { color: var(--c-muted); display: block; }
.usermenu__item {
    display: block; width: 100%; text-align: left; padding: .55rem .7rem; border: 0; background: none;
    border-radius: 9px; cursor: pointer; font: inherit; color: var(--c-text); transition: background .12s;
}
.usermenu__item:hover { background: rgba(0,113,227,.1); color: var(--c-primary-d); }
.usermenu__item--danger { color: var(--c-danger); }
.usermenu__item--danger:hover { background: rgba(255,59,48,.1); color: var(--c-danger); }

/* ── Sidebar (panel de vidrio) ────────────────────────────── */
.sidebar {
    width: var(--sidebar-w); flex-shrink: 0;
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border-right: 1px solid var(--hairline);
    padding: 1.25rem .8rem; overflow-y: auto;
    position: sticky; top: var(--header-h); height: calc(100vh - var(--header-h));
}
.sidebar__section { margin-bottom: 1.35rem; }
.sidebar__title { font-size: .66rem; text-transform: uppercase; letter-spacing: .06em; color: var(--c-faint); margin: 0 .75rem .45rem; font-weight: 600; }
.sidebar__list { list-style: none; margin: 0; padding: 0; }
.sidebar__link {
    display: flex; align-items: center; gap: .7rem; padding: .6rem .75rem; border-radius: 11px;
    color: var(--c-text); margin-bottom: 2px; font-weight: 500; transition: background .14s, color .14s;
}
.sidebar__link:hover { background: rgba(0,0,0,.05); color: var(--c-text); }
.sidebar__link.is-active { background: rgba(0,113,227,.12); color: var(--c-primary-d); }
.sidebar__icon { width: 20px; text-align: center; opacity: .9; }

/* ── Footer ───────────────────────────────────────────────── */
.appfooter {
    display: flex; align-items: center; gap: .5rem; padding: .85rem 1.75rem;
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border-top: 1px solid var(--hairline); color: var(--c-faint); font-size: .8rem;
}
.appfooter__spacer { flex: 1; }
.appfooter__muted { opacity: .8; }

/* ── Encabezado de página ─────────────────────────────────── */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; flex-wrap: wrap; gap: .85rem; }
.page-head h1 { margin: 0; font-size: 1.7rem; font-weight: 600; letter-spacing: -0.03em; }
.page-head p { margin: .25rem 0 0; color: var(--c-muted); }

/* ── Tarjetas de vidrio ───────────────────────────────────── */
.card {
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: 1.4rem;
}
.card + .card { margin-top: 1rem; }
.card__title { margin: 0 0 1rem; font-size: 1.1rem; font-weight: 600; letter-spacing: -0.02em; }

.grid { display: grid; gap: 1rem; }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.grid--stats { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

.stat {
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius);
    padding: 1.25rem 1.4rem; box-shadow: var(--shadow-sm);
}
.stat__label { color: var(--c-faint); font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.stat__value { font-size: 1.9rem; font-weight: 600; margin-top: .35rem; letter-spacing: -0.03em; }
.stat__hint { color: var(--c-muted); font-size: .8rem; }

/* ── Botones ──────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: .4rem; padding: .6rem 1.1rem; border-radius: var(--pill);
    border: 1px solid var(--hairline); background: var(--glass-strong);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    color: var(--c-text); font: inherit; font-weight: 500; cursor: pointer; line-height: 1;
    transition: transform .08s ease, background .15s, box-shadow .15s; box-shadow: var(--shadow-sm);
}
.btn:hover { background: #fff; color: var(--c-text); }
.btn:active { transform: scale(.97); }
.btn--primary { background: var(--c-primary); border-color: transparent; color: #fff; box-shadow: 0 2px 10px rgba(0,113,227,.35); }
.btn--primary:hover { background: var(--c-primary-d); color: #fff; }
.btn--danger { background: var(--c-danger); border-color: transparent; color: #fff; box-shadow: 0 2px 10px rgba(255,59,48,.3); }
.btn--danger:hover { background: #ff453a; color: #fff; }
.btn--ghost { background: transparent; border-color: transparent; box-shadow: none; }
.btn--ghost:hover { background: rgba(0,0,0,.05); }
.btn--sm { padding: .4rem .75rem; font-size: .85rem; }
.btn--block { width: 100%; justify-content: center; }

/* ── Formularios ──────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }
.form-row { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
label.label { display: block; font-weight: 500; margin-bottom: .4rem; font-size: .88rem; color: var(--c-text); }
.input, .select, .textarea {
    width: 100%; padding: .65rem .85rem; border: 1px solid var(--hairline); border-radius: var(--radius-sm);
    font: inherit; background: var(--glass-strong); color: var(--c-text); transition: border-color .15s, box-shadow .15s;
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.input:focus, .select:focus, .textarea:focus {
    outline: none; border-color: var(--c-primary); background: #fff; box-shadow: 0 0 0 4px rgba(0,113,227,.16);
}
.field-error { color: var(--c-danger); font-size: .8rem; margin-top: .3rem; }
.help { color: var(--c-faint); font-size: .8rem; margin-top: .3rem; }

/* ── Tablas ───────────────────────────────────────────────── */
.table-wrap {
    overflow-x: auto; border: 1px solid var(--glass-border); border-radius: var(--radius);
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: var(--shadow-sm);
}
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th, .table td { padding: .8rem 1rem; text-align: left; border-bottom: 1px solid var(--hairline); white-space: nowrap; }
.table th { font-weight: 600; color: var(--c-faint); font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; }
.table tbody tr { transition: background .12s; }
.table tbody tr:hover { background: rgba(0,0,0,.03); }
.table tbody tr:last-child td { border-bottom: none; }
.table td.num, .table th.num { text-align: right; }

/* ── Badges (estilo cápsula translúcida) ──────────────────── */
.badge { display: inline-block; padding: .25rem .6rem; border-radius: var(--pill); font-size: .74rem; font-weight: 600; letter-spacing: -0.01em; }
.badge--ok { background: rgba(52,199,89,.16); color: #248a3d; }
.badge--warn { background: rgba(255,159,10,.18); color: #b25e00; }
.badge--off { background: rgba(0,0,0,.06); color: var(--c-muted); }
.badge--danger { background: rgba(255,59,48,.15); color: #c52a22; }

/* ── Alertas (vidrio tintado) ─────────────────────────────── */
.alert {
    padding: .9rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1.1rem; border: 1px solid transparent;
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: var(--shadow-sm); font-weight: 500;
}
.alert--success { background: rgba(52,199,89,.16); border-color: rgba(52,199,89,.3); color: #1e7a34; }
.alert--error   { background: rgba(255,59,48,.13); border-color: rgba(255,59,48,.3); color: #c52a22; }
.alert--info    { background: rgba(0,113,227,.12); border-color: rgba(0,113,227,.28); color: #0058b9; }
.alert__list { margin: .5rem 0 0; padding-left: 1.2rem; font-weight: 400; }

.empty { text-align: center; padding: 3rem 1rem; color: var(--c-faint); }
.empty__icon { font-size: 2.75rem; display: block; margin-bottom: .6rem; opacity: .8; }

/* ── Utilidades ───────────────────────────────────────────── */
.flex { display: flex; } .items-center { align-items: center; } .gap { gap: .5rem; }
.between { justify-content: space-between; } .ml-auto { margin-left: auto; }
.muted { color: var(--c-muted); } .num { text-align: right; }
.mt { margin-top: 1rem; } .mb { margin-bottom: 1rem; }
.thumb { width: 44px; height: 44px; object-fit: cover; border-radius: 11px; border: 1px solid var(--hairline); background: rgba(0,0,0,.03); }
hr { border: none; border-top: 1px solid var(--hairline); }

/* ── Login (tarjeta de vidrio sobre gradiente) ────────────── */
body.auth {
    display: grid; place-items: center; min-height: 100vh;
    background-color: #e9e9ee;
    background-image:
        radial-gradient(50vw 50vw at 20% 12%, rgba(10,132,255,.35), transparent 60%),
        radial-gradient(46vw 46vw at 85% 20%, rgba(175,82,222,.30), transparent 58%),
        radial-gradient(54vw 54vw at 60% 100%, rgba(48,209,88,.26), transparent 58%);
}
.auth__card {
    background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border); padding: 2.5rem; border-radius: 28px;
    width: min(400px, 92vw); box-shadow: var(--shadow-lg);
}
.auth__brand { text-align: center; margin-bottom: 1.75rem; }
.auth__brand .logo { font-size: 2.75rem; }
.auth__brand h1 { margin: .35rem 0 0; font-size: 1.5rem; font-weight: 600; letter-spacing: -0.03em; }
.auth__brand p { margin: .25rem 0 0; color: var(--c-muted); }
.auth__demo { margin-top: 1.5rem; padding-top: 1.1rem; border-top: 1px solid var(--hairline); font-size: .8rem; color: var(--c-muted); }
.auth__demo code { background: rgba(0,0,0,.06); padding: .1rem .4rem; border-radius: 6px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 880px) {
    .topbar__toggle { display: block; }
    .topbar__brand-text, .topbar__company { display: none; }
    .sidebar {
        position: fixed; left: 0; top: var(--header-h); z-index: 50;
        transform: translateX(-100%); transition: transform .25s ease; box-shadow: var(--shadow-lg);
    }
    .sidebar.is-open { transform: translateX(0); }
    .usermenu__name { display: none; }
    .app__main { padding: 1.1rem; }
}

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