@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ==========================================
   1. VARIABLES (PALETA ORIGINAL)
   ========================================== */
:root {
    --fondo: #f4f7f6;
    --tarjeta: #ffffff;
    --texto: #1e293b;
    --texto-sec: #64748b;
    --borde: #e2e8f0;
    --acento: #3b82f6; 
    --positivo: #10b981; 
    --peligro: #ef4444; 
    --hover: #f8fafc;
    --sombra: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --fondo: #0f172a;
    --tarjeta: #1e293b;
    --texto: #f8fafc;
    --texto-sec: #94a3b8;
    --borde: #334155;
    --acento: #3b82f6;
    --positivo: #10b981;
    --peligro: #ef4444;
    --hover: #1e293b;
    --sombra: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
}

/* ==========================================
   2. ESTILOS BASE
   ========================================== */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--fondo);
    color: var(--texto);
    margin: 0;
    padding: 0;
    transition: padding-left 0.3s ease;
    /* Liberamos el alto y el overflow para que el celular pueda scrolear normal */
}

/* ==========================================
   3. BARRA SUPERIOR Y BOTONES
   ========================================== */

/* ==========================================
   3. BARRA SUPERIOR Y BOTONES
   ========================================== */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--tarjeta);
    padding: 15px 25px;
    box-shadow: var(--sombra);
    margin-bottom: 30px;
    border-bottom: 1px solid var(--borde);
}

.btn-theme, .btn-notis, .btn-menu {
    background: var(--tarjeta); border: 1px solid var(--borde); color: var(--texto);
    padding: 8px 16px; border-radius: 50px; cursor: pointer; font-weight: 600; font-size: 14px;
    transition: 0.2s; box-shadow: 0 2px 4px rgba(0,0,0,0.05); display: flex; align-items: center; gap: 8px;
}
.btn-theme:hover, .btn-notis:hover { background: var(--hover); border-color: var(--acento); color: var(--acento); }
.badge { background: var(--peligro); color: white; border-radius: 50%; padding: 2px 6px; font-size: 10px; margin-left: 5px; }
.btn-menu { background: var(--acento); color: white; border: none; }
.btn-menu:hover { background: #2563eb; }

/* ==========================================
   4. LAYOUT PRINCIPAL (EL QUE TE GUSTA)
   ========================================== */
.pantalla { display: none; padding: 0 20px 20px 20px; min-height: calc(100vh - 100px); box-sizing: border-box; }
.pantalla.activa { display: flex; }

#pantalla-pos {
    max-width: 1200px;
    margin: 0 auto;
    flex-direction: row;
    gap: 20px;
    align-items: stretch;
}

.col-izq { flex: 1.6; display: flex; flex-direction: column; gap: 20px; width: 100%; padding-right: 5px; }
.col-der { flex: 1; display: flex; flex-direction: column; gap: 20px; width: 100%; padding-right: 5px; }

/* 💻 SOLO EN PC: Efecto App donde no scrolea la página, sino las columnas por dentro */
@media (min-width: 1024px) {
    body { height: 100vh; overflow: hidden; }
    .pantalla { height: calc(100vh - 100px); }
    #pantalla-pos { height: 100%; }
    .col-izq, .col-der { height: 100%; overflow-y: auto; }
}

/* Scrollbars finitas e invisibles para las columnas (solo PC) */
@media (min-width: 1024px) {
    .col-izq::-webkit-scrollbar, .col-der::-webkit-scrollbar { width: 4px; }
    .col-izq::-webkit-scrollbar-thumb, .col-der::-webkit-scrollbar-thumb { background: var(--borde); border-radius: 4px; }
}


/* ==========================================
   5. TARJETAS, INPUTS Y BUSCADOR
   ========================================== */
.tarjeta {
    background: var(--tarjeta);
    border-radius: 12px;
    box-shadow: var(--sombra);
    border: 1px solid var(--borde);
    padding: 25px;
}

input, select, textarea {
    font-family: 'Inter', sans-serif;
    width: 100%;
    padding: 14px 15px;
    border: 1px solid var(--borde);
    border-radius: 8px;
    background: var(--fondo);
    color: var(--texto);
    font-size: 15px;
    box-sizing: border-box;
    outline: none;
    transition: 0.2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--acento); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1); }
.input-buscador { border: 2px solid var(--acento); font-size: 16px; font-weight: 500; }

.btn {
    font-family: 'Inter', sans-serif;
    padding: 14px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: 0.2s;
}

/* BUSCADOR FLOTANTE ARREGLADO */
.buscador-container { position: relative; width: 100%; z-index: 9000; }
#resultados_busqueda {
    position: absolute; top: 100%; left: 0; right: 0; background: var(--tarjeta);
    max-height: 350px; overflow-y: auto; border: 1px solid var(--borde);
    border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); margin-top: 8px; z-index: 9999;
}
.item-resultado { padding: 15px 20px; border-bottom: 1px solid var(--fondo); cursor: pointer; transition: 0.1s; }
.item-resultado:hover { background: var(--hover); padding-left: 25px; border-left: 4px solid var(--acento); }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 12px 10px; border-bottom: 2px solid var(--borde); color: var(--texto-sec); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
td { padding: 15px 10px; border-bottom: 1px solid var(--fondo); }

/* ==========================================
   6. CAJA DERECHA (COBRO)
   ========================================== */
.display-total { background: #0f172a; color: white; padding: 30px; border-radius: 12px; text-align: center; box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
.btn-cobrar-master { width: 100%; padding: 20px; font-size: 20px; font-weight: 800; background: var(--positivo); color: white; border-radius: 12px; border: none; cursor: pointer; transition: 0.2s; box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3); }
.btn-cobrar-master:hover { filter: brightness(1.1); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(16, 185, 129, 0.4); }

.calc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 15px; }
.calc-item { background: var(--fondo); border: 1px solid var(--borde); padding: 15px; border-radius: 8px; text-align: center; font-weight: bold; }
.calc-item label { display: block; margin-bottom: 8px; color: var(--texto-sec); font-size: 14px; }
.calc-item input { text-align: center; font-weight: bold; font-size: 16px; padding: 8px; background: var(--tarjeta); }

.btn-billete { padding: 10px 12px; font-size: 13px; background: var(--tarjeta); border: 1px solid var(--borde); color: var(--texto); border-radius: 6px; font-weight: 600; cursor: pointer; transition: 0.1s; }
.btn-billete:hover { border-color: var(--acento); color: var(--acento); }

/* ==========================================
   7. MODALES
   ========================================== */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(3px); z-index: 9999999; justify-content: center; align-items: center; padding: 20px; box-sizing: border-box; }

/* ==========================================
   8. SIDEBAR FIJO (ESTILO ADMIN PANEL)
   ========================================== */
#sidebar-pos-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 90000; }
#sidebar-pos { background: var(--fondo); width: 260px; height: 100vh; box-sizing: border-box; position: absolute; left: 0; top: 0; padding: 20px; display: flex; flex-direction: column; transform: translateX(-100%); transition: transform 0.3s ease; overflow-y: auto; border-right: 1px solid var(--borde); }

/* Diseño de Botones tipo Admin */
.sidebar-logo { display:flex; align-items:center; gap:10px; font-size:24px; font-weight:800; color:var(--texto); margin-bottom:40px; padding-left:10px; }
.btn-sidebar { width: 100%; text-align: left; background: transparent; padding: 12px 15px; margin-bottom: 5px; font-size: 15px; font-weight: 600; color: var(--texto-sec); border-radius: 8px; cursor: pointer; transition: 0.2s; border: none; display: flex; align-items: center; gap: 12px; }
.btn-sidebar:hover, .btn-sidebar.activo { background: var(--tarjeta); color: var(--texto); box-shadow: 0 2px 4px rgba(0,0,0,0.02); }

/* Caja de Usuario (Cerrar Turno) anclada abajo */
.sidebar-user { margin-top: auto; display: flex; align-items: center; gap: 12px; padding: 15px; border-top: 1px solid var(--borde); cursor: pointer; transition: 0.2s; border-radius: 8px; }
.sidebar-user:hover { background: rgba(239, 68, 68, 0.1); color: var(--peligro); }

/* En PC: Se ancla a la izquierda SOLO si el body tiene la clase permitida */
@media (min-width: 1024px) {
    body.mostrar-sidebar-fijo { padding-left: 260px; }
    
    body.mostrar-sidebar-fijo #sidebar-pos-overlay { display: block !important; position: fixed; top: 0; left: 0; width: 260px; height: 100vh; background: transparent; pointer-events: none; z-index: 999999; }
    
    body.mostrar-sidebar-fijo #sidebar-pos { transform: translateX(0) !important; width: 100%; border-radius: 0; border-right: 1px solid var(--borde); box-shadow: none; pointer-events: auto; z-index: 999999; }
    
    body.mostrar-sidebar-fijo #btn-menu-principal { display: none !important; }
}

/* ==========================================
   9. RESPONSIVE (CELULARES) - ESTILO APP NATIVA
   ========================================== */
@media (max-width: 1023px) {
    /* Liberamos el scroll y damos espacio base para el botón flotante */
    body { padding-bottom: 80px !important; }
    
    #pantalla-pos { flex-direction: column; padding: 8px; gap: 12px; height: auto !important; }
    .col-izq, .col-der { width: 100%; gap: 12px; padding: 0 !important; height: auto !important; overflow: visible !important; }
    
    /* Tarjetas mucho más compactas */
    .tarjeta { padding: 16px !important; border-radius: 12px !important; }
    
    /* Achicamos la barra superior */
    .top-bar { padding: 10px 15px; margin-bottom: 10px; }
    .btn-menu, .btn-theme, .btn-notis { padding: 8px 12px !important; font-size: 13px !important; }
    
    /* Buscador compacto */
    .input-buscador { padding: 12px !important; font-size: 15px !important; height: 48px !important; }
    
    /* Tabla Carrito Mega Compacta */
    th, td { padding: 8px 5px !important; font-size: 13px !important; }
    .col-nombre { font-size: 13px !important; padding-left: 5px !important; }
    .col-precio { font-size: 14px !important; }
    .btn-cantidad-carrito { padding: 4px 10px !important; font-size: 14px !important; }
    .input-cantidad-carrito { width: 35px !important; padding: 4px !important; font-size: 13px !important; }
    .btn-tacho-carrito { padding: 6px !important; font-size: 14px !important; }
    
    /* Display Total Invertido (Más fino) */
    .display-total { padding: 15px !important; margin-bottom: 5px !important; }
    #total_venta_mostrar { font-size: 40px !important; letter-spacing: -1px !important; }
    
    /* Selectores y Vuelto Compacto */
    select { height: 48px !important; font-size: 15px !important; padding: 10px !important; }
    #caja_calculadora { padding: 15px !important; margin-top: 10px !important; }
    .btn-billete { padding: 8px 5px !important; font-size: 13px !important; flex: 1 1 20%; }
    #paga_con { font-size: 20px !important; padding: 10px !important; height: 50px !important; }
    #vuelto_mostrar { font-size: 22px !important; }
    
    /* 🔥 EL TRUCO MAGIA: BOTÓN COBRAR FLOTANTE TIPO ML 🔥 */
    #btn-cobrar-principal {
        position: fixed !important;
        /* env(safe-area-inset-bottom) es para que en los iPhone no tape la barrita de inicio */
        bottom: calc(15px + env(safe-area-inset-bottom)) !important;
        left: 5% !important;
        width: 90% !important;
        z-index: 99999 !important;
        padding: 16px !important;
        font-size: 18px !important;
        border-radius: 12px !important;
        box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4) !important;
        margin: 0 !important;
    }
    
    /* Ajuste final a la columna derecha para que el botón flotante no tape los botones de Cierre de Caja */
    .col-der { padding-bottom: 90px !important; }
}