:root {
    --bg-main: #000000;
    --bg-card: #1C1C1E;
    --bg-glass: rgba(28, 28, 30, 0.88);
    --bg-input: #2C2C2E;

    /* Variables Semánticas Resaltantes iOS Dark Mode */
    --rosa-pastel: #0A84FF;      /* Azul iOS Principal */
    --menta-pastel: #32D74B;     /* Verde Efectivo / Confirmación */
    --lavanda-pastel: #BF5AF2;   /* Morado Claro Yape */
    --yape-purple: #742385;      /* Morado Oficial Yape */
    --durazno-pastel: #FF9F0A;   /* Naranja Tarjeta / Alerta */
    --rojo-suave: #FF453A;       /* Rojo iOS Peligro / Cerrar */
    --ios-amber: #FFD60A;        /* Ámbar Advertencia */

    /* Alias directos para componentes nuevos */
    --ios-blue: #0A84FF;
    --ios-green: #32D74B;
    --ios-purple: #BF5AF2;
    --ios-orange: #FF9F0A;
    --ios-red: #FF453A;

    --text-main: #FFFFFF;
    --text-muted: rgba(235, 235, 245, 0.62);
    --border-color: rgba(255, 255, 255, 0.14);
    --border-highlight: rgba(10, 132, 255, 0.55);
    --radius-ios: 24px;
    --radius-btn: 14px;
    --ios-spring: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-main);
    background-image: radial-gradient(circle at 15% 15%, rgba(10, 132, 255, 0.07), transparent 35%),
                      radial-gradient(circle at 85% 80%, rgba(116, 35, 133, 0.07), transparent 35%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #3A3A3C; border-radius: 999px; }

button {
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-btn);
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.45);
    transition: transform 0.18s var(--ios-spring), border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, opacity 0.2s ease;
}
button:hover {
    transform: translateY(-1.5px);
    border-color: rgba(255, 255, 255, 0.38);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.55);
}
button:active { transform: scale(0.96); opacity: 0.9; }
button:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

/* Botones de Método de Pago con Colores Oficiales */
.btn-pago-efectivo { background: #32D74B !important; color: #000000 !important; border-color: #32D74B !important; font-weight: 900 !important; }
.btn-pago-yape { background: #742385 !important; color: #FFFFFF !important; border-color: #BF5AF2 !important; font-weight: 900 !important; }
.btn-pago-tarjeta { background: #FF9F0A !important; color: #000000 !important; border-color: #FF9F0A !important; font-weight: 900 !important; }
.btn-pago-mixto { background: #0A84FF !important; color: #FFFFFF !important; border-color: #0A84FF !important; font-weight: 900 !important; }
.btn-pago-inactivo { background: var(--bg-input) !important; color: var(--text-main) !important; border-color: var(--border-color) !important; }

input, select, textarea {
    background: var(--bg-input);
    color: var(--text-main);
    border: 1.5px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-btn);
    padding: 11px 14px;
    font-size: 0.93rem;
    outline: none;
    width: 100%;
    transition: border-color 0.25s var(--ios-spring), box-shadow 0.25s var(--ios-spring);
}
input:focus, select:focus, textarea:focus {
    border-color: var(--rosa-pastel);
    box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.22);
}

.text-mint { color: var(--menta-pastel) !important; }
.text-danger { color: var(--rojo-suave) !important; }
.text-pink { color: #5AC8FA !important; }
.text-warn { color: var(--durazno-pastel) !important; }
.text-lavanda { color: var(--lavanda-pastel) !important; }
.text-muted { color: var(--text-muted) !important; }
.fw-900 { font-weight: 900; }

.badge {
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 800;
    display: inline-block;
    border: 1px solid rgba(255, 255, 255, 0.14);
}
.badge-pink { background: rgba(10, 132, 255, 0.18); color: #5AC8FA; border-color: rgba(10, 132, 255, 0.45); }
.badge-mint { background: rgba(50, 215, 75, 0.18); color: var(--menta-pastel); border-color: rgba(50, 215, 75, 0.45); }
.badge-warn { background: rgba(255, 159, 10, 0.18); color: var(--durazno-pastel); border-color: rgba(255, 159, 10, 0.45); }
.badge-danger { background: rgba(255, 69, 58, 0.22); color: var(--rojo-suave); border-color: rgba(255, 69, 58, 0.5); }
.badge-yape { background: rgba(116, 35, 133, 0.4); color: #E5B8FF; border-color: #BF5AF2; }

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.76);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 16px;
    animation: fadeIn 0.2s var(--ios-spring);
}
.modal-card {
    background: var(--bg-card);
    border: 1.5px solid var(--border-color);
    border-radius: 28px;
    max-width: 540px;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    padding: 26px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85);
    animation: scaleUp 0.28s var(--ios-spring);
}
.ios-dialog-card {
    background: rgba(28, 28, 30, 0.96);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1.5px solid rgba(255, 255, 255, 0.22);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleUp { from { opacity: 0; transform: scale(0.92) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes pulseUrgent {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 69, 58, 0.65); border-color: #FF453A; }
    50% { box-shadow: 0 0 20px 4px rgba(255, 69, 58, 0.38); border-color: #FFD60A; }
}
.pedido-urgente {
    animation: pulseUrgent 1.8s infinite;
}

.login-wrapper { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    background: var(--bg-card);
    border: 1.5px solid var(--border-color);
    border-radius: 28px;
    max-width: 820px;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(0,0,0,0.85);
    animation: scaleUp 0.35s var(--ios-spring);
}
.login-left {
    background: linear-gradient(145deg, #1C1C1E 0%, #0D0D0F 100%);
    padding: 45px 35px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 1px solid var(--border-color);
}
.brand-title { color: #5AC8FA; font-size: 2.3rem; font-weight: 900; letter-spacing: -0.5px; margin-bottom: 12px; }
.login-right { padding: 45px 40px; display: flex; flex-direction: column; justify-content: center; gap: 22px; }
.pin-input {
    font-size: 2rem;
    letter-spacing: 12px;
    text-align: center;
    font-weight: 900;
    padding: 16px;
    background: var(--bg-main);
    border: 2px solid var(--border-highlight);
    color: var(--text-main);
}
.btn-ingresar {
    background: var(--rosa-pastel);
    color: #FFFFFF;
    padding: 16px;
    font-size: 1.1rem;
    font-weight: 900;
    margin-top: 8px;
    border: none;
    box-shadow: 0 8px 20px rgba(10, 132, 255, 0.35);
}

.pos-viewport {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.pos-header {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    flex-shrink: 0;
    z-index: 50;
}
.pos-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 1.55fr 1fr;
    gap: 14px;
    padding: 14px 18px;
    max-width: 1700px;
    width: 100%;
    margin: 0 auto;
    min-height: 0;
    overflow: hidden;
}
.panel-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-ios);
    padding: 16px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.45);
}
.pos-left-panel, .pos-right-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}
.productos-grid {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
    align-content: start;
    gap: 10px;
    padding-right: 4px;
}
.prod-item {
    background: var(--bg-input);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s var(--ios-spring);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    user-select: none;
}
.prod-item:hover { border-color: var(--rosa-pastel); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(10, 132, 255, 0.22); }
.prod-item:active { transform: scale(0.95); }

.carrito-scroll {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    margin-bottom: 10px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 4px;
}
.pos-checkout-section {
    flex-shrink: 0;
}

.billetes-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 8px; }
.btn-billete {
    background: #2C2C2E;
    color: var(--menta-pastel);
    padding: 8px 6px;
    border: 1.5px solid rgba(50, 215, 75, 0.45);
    font-size: 0.85rem;
}
.btn-billete:hover { background: var(--menta-pastel); color: #000; border-color: #fff; }

.dropzone-foto {
    border: 2px dashed rgba(255, 255, 255, 0.28);
    border-radius: 16px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
}
.dropzone-foto:hover, .dropzone-foto.dragover {
    border-color: var(--rosa-pastel);
    background: rgba(10, 132, 255, 0.12);
}

.admin-layout { display: grid; grid-template-columns: 265px 1fr; min-height: 100vh; }
.sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.nav-btn {
    width: 100%;
    text-align: left;
    padding: 13px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    font-size: 0.93rem;
    margin-bottom: 8px;
}
.nav-btn.active, .nav-btn:hover {
    background: var(--rosa-pastel);
    color: #FFFFFF;
    border-color: var(--rosa-pastel);
}
.content-area { padding: 28px; overflow-y: auto; }
.tab-section { display: none; animation: scaleUp 0.25s var(--ios-spring); }
.tab-section.active { display: block; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-ios);
    padding: 20px;
    box-shadow: 0 10px 28px rgba(0,0,0,0.45);
}
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: #5AC8FA; font-weight: 800; }

/* ==========================================================================
   FORMATOS DE IMPRESIÓN: HOJA A4 (3 COL) Y ROLLO 80MM EN 2 COLUMNAS REDONDEADAS
   ========================================================================== */
.etiquetas-a4-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    background: #FFFFFF;
    color: #000000;
    padding: 10px;
}
.etiqueta-box {
    border: 1px dashed #333333;
    padding: 8px;
    text-align: center;
    border-radius: 8px;
    background: #FFFFFF;
    color: #000000;
    page-break-inside: avoid;
    break-inside: avoid;
}

/* Rollo Térmico 80mm con etiquetas precortadas dobles (2 Columnas) */
.etiquetas-80mm-rollo {
    width: 76mm;
    max-width: 76mm;
    margin: 0 auto;
    background: #FFFFFF !important;
    color: #000000 !important;
    padding: 1mm;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2mm;
    align-content: start;
}
.etiqueta-80mm-item {
    width: 36mm;
    max-width: 36mm;
    border: 1px dashed #666666;
    border-radius: 8px;
    padding: 2mm 1mm;
    text-align: center;
    background: #FFFFFF !important;
    color: #000000 !important;
    page-break-inside: avoid;
    break-inside: avoid;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}
.etiqueta-80mm-item svg {
    max-width: 34mm !important;
    height: auto !important;
}

@media print {
    html, body {
        background: #FFFFFF !important;
        background-image: none !important;
        color: #000000 !important;
        width: auto !important;
        height: auto !important;
        min-height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: visible !important;
    }
    /* Ocultar absolutamente toda la interfaz oscura para que la tiquetera corte al final del contenido */
    .pos-viewport,
    .modal-backdrop,
    .ios-toast-container,
    .sidebar,
    .tab-section {
        display: none !important;
    }
    .admin-layout,
    .content-area {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
        min-height: 0 !important;
        height: auto !important;
        background: #FFFFFF !important;
        border: none !important;
    }
    #areaImpresionActiva {
        display: block !important;
        position: static !important;
        width: 76mm !important;
        max-width: 76mm !important;
        margin: 0 auto !important;
        padding: 0 !important;
        background: #FFFFFF !important;
        color: #000000 !important;
        box-shadow: none !important;
    }
    #areaImpresionActiva.impresion-formato-a4 {
        width: 100% !important;
        max-width: 100% !important;
    }
}

/* Notificaciones Superiores Tipo Isla Dinámica iOS */
.ios-toast-container {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    width: 92%;
    max-width: 430px;
}
.ios-toast {
    background: rgba(28, 28, 30, 0.94);
    backdrop-filter: blur(25px) saturate(190%);
    -webkit-backdrop-filter: blur(25px) saturate(190%);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.78);
    animation: iosToastIn 0.38s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    pointer-events: auto;
}
.ios-toast-hide { animation: iosToastOut 0.3s ease forwards; }
.ios-toast-icon {
    width: 34px; height: 34px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 900; font-size: 1rem; flex-shrink: 0;
}
.ios-toast-ok .ios-toast-icon { background: var(--menta-pastel); color: #000; }
.ios-toast-warn .ios-toast-icon { background: var(--durazno-pastel); color: #000; }
.ios-toast-error .ios-toast-icon { background: var(--rojo-suave); color: #FFF; }
.ios-toast-title { font-size: 0.82rem; font-weight: 900; color: #5AC8FA; }
.ios-toast-msg { font-size: 0.9rem; color: var(--text-main); font-weight: 700; line-height: 1.35; }

@keyframes iosToastIn { from { opacity: 0; transform: translateY(-28px) scale(0.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes iosToastOut { from { opacity: 1; transform: translateY(0) scale(1); } to { opacity: 0; transform: translateY(-20px) scale(0.92); } }

/* Adaptación Responsiva Total para Celulares, Tablets y PC */
@media (max-width: 1024px) {
    .pos-viewport { height: auto; min-height: 100vh; overflow: visible; }
    .pos-grid, .login-card, .admin-layout { grid-template-columns: 1fr; overflow: visible; }
    .pos-left-panel, .pos-right-panel { height: auto; overflow: visible; }
    .productos-grid { max-height: 55vh; grid-template-columns: repeat(auto-fill, minmax(135px, 1fr)); }
    .carrito-scroll { max-height: 240px; }
    .content-area { padding: 14px; }
    .sidebar { border-right: none; border-bottom: 1px solid var(--border-color); padding: 14px; }
    table { display: block; overflow-x: auto; white-space: nowrap; }
    .cards-grid { grid-template-columns: 1fr; }
}
.stat-card form div, .modal-card div, .cards-grid div {
    gap: 10px;
}
.stat-card input, .stat-card select,
.modal-card input, .modal-card select {
    margin-bottom: 6px;
}
.tab-section {
    display: none !important;
}
.tab-section.active {
    display: block !important;
}