:root {
    --theme: #45282a;
    --theme-2: #5c373a;
    --theme-deep: #2a1718;
    --bg: #16100f;
    --panel: rgba(69, 40, 42, 0.45);
    --panel-solid: #2d1c1d;
    --glass: rgba(255, 255, 255, 0.04);
    --line: rgba(255, 180, 170, 0.12);
    --accent: #ff8a6b;
    --accent-2: #ffd27a;
    --neon: #ff6f91;
    --text: #f7ece9;
    --muted: #c8a8a4;
    --ok: #46e6a8;
    --radius: 16px;
    --shadow: 0 10px 40px rgba(0,0,0,.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: radial-gradient(1200px 700px at 80% -10%, var(--theme-2), transparent 60%),
                radial-gradient(900px 600px at -10% 110%, var(--theme), transparent 55%),
                var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    letter-spacing: .2px;
    /* Toque y comportamiento tipo app nativa */
    -webkit-tap-highlight-color: transparent;   /* sin flash azul al tocar */
    -webkit-touch-callout: none;                /* sin menú al mantener pulsado */
    overscroll-behavior-y: none;                /* sin rebote elástico de la página */
    user-select: none;                          /* el catálogo no se selecciona como texto */
}
/* Los campos de texto sí deben permitir selección/escritura */
input, textarea { user-select: text; -webkit-user-select: text; }

/* Fondo animado */
.aurora {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
        conic-gradient(from 120deg at 50% 50%, transparent, rgba(255,111,145,.08), transparent 40%),
        radial-gradient(600px 600px at 20% 30%, rgba(255,138,107,.10), transparent 70%);
    animation: drift 18s ease-in-out infinite alternate;
    filter: blur(10px);
}
@keyframes drift {
    0%   { transform: translate3d(-2%, -1%, 0) rotate(0deg); }
    100% { transform: translate3d(3%, 2%, 0) rotate(8deg); }
}

/* ---------- TOPBAR ---------- */
.topbar {
    position: relative; z-index: 2;
    display: flex; align-items: center; justify-content: center; gap: 24px;
    /* Respeta la isla dinámica / notch y los bordes (safe-area de iOS) */
    padding-top: calc(18px + env(safe-area-inset-top));
    padding-right: calc(28px + env(safe-area-inset-right));
    padding-bottom: 18px;
    padding-left: calc(28px + env(safe-area-inset-left));
    background: linear-gradient(180deg, rgba(69,40,42,.92), rgba(69,40,42,.35));
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
    font-size: 34px; line-height: 1;
    filter: drop-shadow(0 0 12px rgba(255,138,107,.6));
    animation: float 3.5s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(-5px); } }
.brand-text h1 {
    font-size: 26px; font-weight: 800; letter-spacing: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 3px; }

/* Buscador centrado, debajo de las categorías */
.search-bar {
    position: relative; z-index: 2;
    display: flex; justify-content: center;
    padding: 12px 28px 0;
}
.search-wrap {
    position: relative; display: flex; align-items: center;
    width: 100%; max-width: 640px;
}
.search-ico { position: absolute; left: 16px; opacity: .7; }
#search {
    width: 100%; padding: 14px 44px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--text); font-size: 15px;
    outline: none; transition: .25s;
}
#search:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(255,138,107,.15), 0 0 30px rgba(255,138,107,.15);
}
#search::placeholder { color: var(--muted); }
.clear-search {
    position: absolute; right: 10px;
    background: none; border: none; color: var(--muted);
    font-size: 16px; cursor: pointer; padding: 6px; opacity: 0; transition: .2s;
}
.clear-search.show { opacity: 1; }

/* ---------- FILTROS ---------- */
.filters {
    position: relative; z-index: 2;
    display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
    width: 100%; max-width: 696px; margin: 0 auto;
    padding: 16px 28px 4px;
}
.chip {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 18px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted); font-size: 14px; font-weight: 600;
    cursor: pointer; transition: .2s;
}
.chip-ico { font-size: 15px; }
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.active {
    color: #1a0f0f;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-color: transparent;
    box-shadow: 0 6px 22px rgba(255,138,107,.35);
}

/* ---------- LAYOUT ---------- */
.layout {
    /* Sin stacking context propio: así el panel del ticket (z-index alto) puede
       situarse por encima del fondo oscuro en móvil. */
    display: grid; grid-template-columns: 1fr 360px;
    gap: 22px; padding: 18px 28px 28px;
    align-items: start;
}

/* ---------- CATÁLOGO ---------- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
}
.card {
    position: relative;
    display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
    padding: 16px 14px 14px;
    background: linear-gradient(160deg, rgba(92,55,58,.55), rgba(42,23,24,.65));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--text); text-align: left;
    cursor: pointer; overflow: hidden;
    transition: transform .15s, border-color .2s, box-shadow .2s;
}
.card::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(120px 80px at var(--mx,50%) var(--my,0%), rgba(255,138,107,.18), transparent 70%);
    opacity: 0; transition: opacity .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 14px 30px rgba(0,0,0,.4); }
.card:hover::before { opacity: 1; }
.card:active { transform: scale(.97); }
.card-ico { font-size: 30px; filter: drop-shadow(0 4px 8px rgba(0,0,0,.4)); }
.card-name { font-size: 14px; font-weight: 600; line-height: 1.25; min-height: 2.4em; }
.card-price {
    font-size: 16px; font-weight: 800;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.card-add {
    position: absolute; top: 10px; right: 10px;
    width: 26px; height: 26px; border-radius: 50%;
    display: grid; place-items: center;
    background: rgba(255,138,107,.18); color: var(--accent);
    font-size: 18px; font-weight: 700;
    transition: .2s;
}
.card:hover .card-add { background: var(--accent); color: #1a0f0f; transform: rotate(90deg); }

.card.flash { animation: flash .4s; }
@keyframes flash {
    0% { box-shadow: 0 0 0 0 rgba(70,230,168,.6); }
    100% { box-shadow: 0 0 0 16px rgba(70,230,168,0); }
}

.empty { text-align: center; color: var(--muted); padding: 60px 0; font-size: 15px; }

/* ---------- TICKET ---------- */
.ticket {
    position: sticky; top: 18px;
    background: linear-gradient(180deg, rgba(69,40,42,.6), rgba(42,23,24,.7));
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 18px;
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
    display: flex; flex-direction: column;
    max-height: calc(100vh - 36px);
}
.ticket-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.ticket-head h2 { font-size: 18px; letter-spacing: 1px; }
.ghost-btn {
    background: none; border: 1px solid var(--line); color: var(--muted);
    padding: 5px 12px; border-radius: 999px; font-size: 12px; cursor: pointer; transition: .2s;
}
.ghost-btn:hover { color: var(--neon); border-color: var(--neon); }

.cart { flex: 1; overflow-y: auto; margin: 0 -4px; padding: 0 4px; min-height: 80px; }
.cart-empty { color: var(--muted); text-align: center; padding: 30px 0; font-size: 14px; }

.cart-item {
    display: grid; grid-template-columns: 1fr auto; gap: 4px 10px;
    align-items: center;
    padding: 10px 0; border-bottom: 1px dashed var(--line);
    animation: slideIn .2s ease;
}
@keyframes slideIn { from { opacity: 0; transform: translateX(12px); } }
.ci-name { font-size: 14px; font-weight: 600; }
.ci-unit { font-size: 12px; color: var(--muted); }
.ci-line { font-weight: 800; color: var(--accent-2); font-size: 15px; }
.ci-qty {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--glass); border: 1px solid var(--line);
    border-radius: 999px; padding: 3px 6px;
}
.ci-qty button {
    width: 24px; height: 24px; border-radius: 50%; border: none;
    background: rgba(255,138,107,.15); color: var(--accent);
    font-size: 15px; font-weight: 700; cursor: pointer; transition: .15s;
}
.ci-qty button:hover { background: var(--accent); color: #1a0f0f; }
.ci-qty span { min-width: 18px; text-align: center; font-weight: 700; }

.ticket-total {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 12px; padding-top: 14px; border-top: 1px solid var(--line);
    font-size: 16px;
}
#total { font-size: 26px; font-weight: 800;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.pay-btn {
    margin-top: 14px; padding: 16px;
    background: linear-gradient(90deg, var(--accent), var(--neon));
    border: none; border-radius: 14px;
    color: #1a0f0f; font-size: 17px; font-weight: 800; letter-spacing: 1px;
    cursor: pointer; transition: .2s;
    box-shadow: 0 10px 26px rgba(255,111,145,.35);
}
.pay-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(255,111,145,.5); }
.pay-btn:disabled { opacity: .35; cursor: not-allowed; box-shadow: none; }

/* ---------- MODAL ---------- */
.modal-backdrop[hidden] { display: none; }
.modal-backdrop {
    position: fixed; inset: 0; z-index: 50;
    background: rgba(10,6,6,.7); backdrop-filter: blur(6px);
    display: grid; place-items: center;
    animation: fade .2s;
}
@keyframes fade { from { opacity: 0; } }
.modal {
    position: relative; width: min(440px, 92vw);
    background: linear-gradient(180deg, var(--theme-2), var(--panel-solid));
    border: 1px solid var(--line);
    border-radius: 22px; padding: 26px;
    box-shadow: var(--shadow), 0 0 60px rgba(255,111,145,.15);
    animation: pop .25s cubic-bezier(.2,.9,.3,1.3);
}
@keyframes pop { from { transform: scale(.9); opacity: 0; } }
.modal-close {
    position: absolute; top: 14px; right: 14px;
    background: var(--glass); border: 1px solid var(--line); color: var(--muted);
    width: 34px; height: 34px; border-radius: 50%; cursor: pointer; font-size: 15px; transition: .2s;
}
.modal-close:hover { color: var(--neon); border-color: var(--neon); }
.modal h3 { font-size: 20px; letter-spacing: 1px; margin-bottom: 18px; }

.pay-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 16px; margin-bottom: 18px;
    background: var(--glass); border: 1px solid var(--line); border-radius: 12px;
}
.pay-total { font-size: 22px; font-weight: 800; color: var(--accent-2); }

.pay-label { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
#given {
    width: 100%; padding: 16px; font-size: 24px; font-weight: 800; text-align: center;
    background: var(--glass); border: 1px solid var(--line); border-radius: 14px;
    color: var(--text); outline: none; transition: .2s;
}
#given:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255,138,107,.15); }

.quick-cash { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 4px; }
.quick-cash button {
    flex: 1 1 auto; min-width: 60px; padding: 10px;
    background: var(--glass); border: 1px solid var(--line); border-radius: 10px;
    color: var(--text); font-weight: 700; cursor: pointer; transition: .2s;
}
.quick-cash button:hover { border-color: var(--accent); color: var(--accent); }

.change-box {
    margin-top: 18px; padding: 18px;
    background: linear-gradient(160deg, rgba(70,230,168,.08), transparent);
    border: 1px solid rgba(70,230,168,.25); border-radius: 16px;
    display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.change-label { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); }
.change-amount { font-size: 40px; font-weight: 800; color: var(--ok); text-shadow: 0 0 24px rgba(70,230,168,.4); }
.change-amount.neg { color: var(--neon); text-shadow: 0 0 24px rgba(255,111,145,.4); font-size: 22px; }

.sale-warning {
    margin-top: 16px;
    padding: 12px 14px;
    background: rgba(255, 60, 80, 0.12);
    border: 1px solid rgba(255, 60, 80, 0.5);
    border-radius: 12px;
    color: #ff6f7e;
    font-size: 14px; font-weight: 700; text-align: center;
    animation: warnpulse 1.2s ease-in-out infinite;
}
@keyframes warnpulse {
    50% { border-color: rgba(255,60,80,.95); box-shadow: 0 0 18px rgba(255,60,80,.35); }
}

.close-sale-btn {
    width: 100%; margin-top: 14px; padding: 16px;
    background: linear-gradient(90deg, var(--accent), var(--neon));
    border: none; border-radius: 14px;
    color: #1a0f0f; font-size: 17px; font-weight: 800; letter-spacing: 1px;
    cursor: pointer; transition: .2s;
    box-shadow: 0 10px 26px rgba(255,111,145,.35);
}
.close-sale-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(255,111,145,.5); }
.close-sale-btn:active:not(:disabled) { transform: scale(.98); }
.close-sale-btn:disabled {
    opacity: .4; cursor: not-allowed;
    background: linear-gradient(90deg, #5c373a, #3a2526);
    color: var(--muted); box-shadow: none;
}

/* ---------- BARRA / PANEL DE TICKET MÓVIL ---------- */
.ticket-head-actions { display: flex; align-items: center; gap: 8px; }
.ticket-close { display: none; line-height: 1; padding: 5px 12px; }

/* Barra inferior fija (solo móvil) */
.cart-bar {
    display: none;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    align-items: center; gap: 12px;
    padding: 14px calc(18px + env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) calc(18px + env(safe-area-inset-left));
    background: linear-gradient(180deg, rgba(69,40,42,.92), rgba(42,23,24,.98));
    backdrop-filter: blur(14px);
    border: none; border-top: 1px solid var(--line);
    color: var(--text); cursor: pointer;
    box-shadow: 0 -8px 30px rgba(0,0,0,.45);
    transition: transform .3s ease;
}
.cart-bar-left { display: flex; align-items: center; gap: 8px; }
.cart-bar-icon { font-size: 20px; }
.cart-bar-count {
    min-width: 24px; height: 24px; padding: 0 7px;
    display: inline-grid; place-items: center;
    background: var(--accent); color: #1a0f0f;
    border-radius: 999px; font-weight: 800; font-size: 13px;
}
.cart-bar-total {
    font-size: 20px; font-weight: 800;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cart-bar-cta {
    margin-left: auto; font-weight: 700; font-size: 14px; color: var(--accent);
}

/* Fondo oscuro tras el panel (solo oscurece, sin desenfoque para no verse borroso) */
.sheet-backdrop {
    position: fixed; inset: 0; z-index: 46;
    background: rgba(10,6,6,.72);
    animation: fade .2s;
}
.sheet-backdrop[hidden] { display: none; }

/* ---------- RESPONSIVE ---------- */
/* Tablets: el ticket se mantiene a la derecha, columna algo más estrecha */
@media (max-width: 1024px) {
    .layout { grid-template-columns: 1fr 300px; gap: 16px; padding: 16px; }
    .grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}
/* Móviles: catálogo a pantalla completa + ticket como panel deslizante */
@media (max-width: 640px) {
    .layout { grid-template-columns: 1fr; padding-bottom: 90px; }
    .topbar { justify-content: center; text-align: center; }
    .grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
    .search-bar { padding-left: 16px; padding-right: 16px; }

    /* La barra inferior siempre visible */
    .cart-bar { display: flex; }
    .sheet-open .cart-bar { transform: translateY(120%); }

    /* El ticket se convierte en hoja inferior deslizante */
    .ticket-close { display: inline-grid; place-items: center; }
    .ticket {
        position: fixed; left: 0; right: 0; bottom: 0; top: auto;
        width: 100%; max-height: 82vh;
        border-radius: 22px 22px 0 0;
        transform: translateY(110%);
        transition: transform .32s cubic-bezier(.2,.85,.25,1);
        z-index: 48;
        padding-bottom: calc(18px + env(safe-area-inset-bottom));
        /* Panel sólido y nítido (sin transparencia ni desenfoque) */
        background: #2d1c1d;
        backdrop-filter: none;
        border: 1px solid var(--line);
        border-bottom: none;
        box-shadow: 0 -12px 40px rgba(0,0,0,.55);
    }
    /* Tirador superior del panel */
    .ticket::before {
        content: ""; display: block;
        width: 42px; height: 5px; margin: -4px auto 12px;
        background: var(--line); border-radius: 999px;
    }
    .ticket.open { transform: translateY(0); }
}

/* Scrollbar */
.cart::-webkit-scrollbar { width: 6px; }
.cart::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }