/* ====== Base ====== */
:root{
    --azul: #2563eb;
    --azul-oscuro: #1d4ed8;
    --verde: #16a34a;
    --verde-oscuro: #15803d;
    --gris-100: #f4f5f7;
    --gris-200: #e5e7eb;
    --gris-400: #9ca3af;
    --gris-600: #4b5563;
    --gris-800: #1f2937;
    --naranja: #d97706;
    --rojo: #dc2626;
    --radio: 12px;
}

*{ box-sizing: border-box; }

body{
    margin:0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--gris-100);
    color: var(--gris-800);
    padding-bottom: 40px;
}

a{ color: var(--azul); text-decoration:none; }

/* ====== Header ====== */
.topbar{
    background:#fff;
    border-bottom:1px solid var(--gris-200);
    position: sticky;
    top:0;
    z-index: 10;
}
.topbar-inner{
    max-width: 720px;
    margin:0 auto;
    padding: 12px 16px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap: wrap;
    gap:8px;
}
.brand{ font-weight:700; font-size:1.1rem; color: var(--gris-800); }
.topnav{ display:flex; gap:14px; font-size:0.92rem; flex-wrap:wrap; }
.topnav a{ color: var(--gris-600); }
.topnav a:hover{ color: var(--azul); }

.container{
    max-width: 720px;
    margin: 0 auto;
    padding: 16px;
}

/* ====== Titulos ====== */
h1{ font-size:1.4rem; margin: 4px 0 16px; }
h2{ font-size:1.15rem; margin: 0 0 10px; }
p.subtitulo{ color: var(--gris-600); margin-top:-10px; margin-bottom:18px; font-size:0.92rem; }

/* ====== Botones ====== */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:6px;
    padding: 12px 16px;
    border-radius: var(--radio);
    border: none;
    font-size: 0.95rem;
    font-weight:600;
    cursor:pointer;
    text-align:center;
    transition: transform .05s ease, opacity .15s ease;
}
.btn:active{ transform: scale(0.97); }
.btn-primario{ background: var(--azul); color:#fff; }
.btn-primario:hover{ background: var(--azul-oscuro); }
.btn-exito{ background: var(--verde); color:#fff; }
.btn-exito:hover{ background: var(--verde-oscuro); }
.btn-whatsapp{ background:#25D366; color:#fff; }
.btn-secundario{ background:#fff; color: var(--gris-800); border:1px solid var(--gris-200); }
.btn-peligro{ background:#fff; color: var(--rojo); border:1px solid #fecaca; }
.btn-bloque{ width:100%; }
.btn-chico{ padding:8px 12px; font-size:0.85rem; border-radius:9px; }
.btn:disabled{ opacity:.5; cursor:not-allowed; }

/* ====== Cards / Listas ====== */
.card{
    background:#fff;
    border-radius: var(--radio);
    border:1px solid var(--gris-200);
    padding: 14px;
    margin-bottom: 12px;
}
.lista-item{
    background:#fff;
    border-radius: var(--radio);
    border:1px solid var(--gris-200);
    padding: 14px;
    margin-bottom: 10px;
}
.lista-item-cabecera{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:10px;
}
.lista-item-titulo{ font-weight:700; font-size:1rem; }
.lista-item-sub{ color: var(--gris-600); font-size:0.85rem; margin-top:2px; }
.lista-item-acciones{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:12px;
}

/* ====== Formularios ====== */
label{ display:block; font-size:0.88rem; font-weight:600; margin: 12px 0 6px; color: var(--gris-800); }
input[type=text], input[type=tel], input[type=password], textarea, select{
    width:100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--gris-200);
    font-size: 1rem;
    background:#fff;
}
textarea{ resize: vertical; min-height: 70px; }
.form-ayuda{ font-size:0.8rem; color: var(--gris-400); margin-top:4px; }
.form-acciones{ margin-top: 20px; display:flex; gap:10px; flex-wrap:wrap; }

/* ====== Badges de estado ====== */
.badge{
    display:inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight:700;
    white-space:nowrap;
}
.badge-pendiente{ background:#fef3c7; color:#92400e; }
.badge-cargado{ background:#dcfce7; color:#166534; }

/* ====== Buscador ====== */
.buscador{ margin-bottom: 16px; }

/* ====== Vacio ====== */
.vacio{
    text-align:center;
    color: var(--gris-400);
    padding: 40px 10px;
}

/* ====== Producto (form pedido cliente) ====== */
.producto-fila{
    background:#fff;
    border-radius: var(--radio);
    border:1px solid var(--gris-200);
    padding: 12px 14px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    margin-bottom:10px;
}
.producto-info{ flex:1; min-width:0; }
.producto-codigo{ font-size:0.75rem; color: var(--gris-400); font-weight:700; }
.producto-nombre{ font-size:0.95rem; font-weight:600; margin-top:2px; }

.stepper{
    display:flex;
    align-items:center;
    gap:0;
    border:1px solid var(--gris-200);
    border-radius: 10px;
    overflow:hidden;
    flex-shrink:0;
}
.stepper button{
    width:38px;
    height:38px;
    border:none;
    background: var(--gris-100);
    font-size:1.2rem;
    cursor:pointer;
    line-height:1;
}
.stepper button:active{ background: var(--gris-200); }
.stepper input{
    width:42px;
    text-align:center;
    border:none;
    border-left:1px solid var(--gris-200);
    border-right:1px solid var(--gris-200);
    height:38px;
    font-size:1rem;
    padding:0;
}

/* ====== Barra fija inferior (carrito) ====== */
.barra-inferior{
    position: fixed;
    left:0; right:0; bottom:0;
    background:#fff;
    border-top:1px solid var(--gris-200);
    padding: 12px 16px;
    box-shadow: 0 -4px 14px rgba(0,0,0,0.06);
    z-index: 20;
}
.barra-inferior-inner{
    max-width: 720px;
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
}
.barra-resumen{ font-size:0.88rem; color: var(--gris-600); }
.barra-resumen strong{ color: var(--gris-800); }

/* espacio para que la barra inferior no tape contenido */
.espacio-barra{ height: 90px; }

/* ====== Resumen de pedido (paso 2) ====== */
.resumen-fila{
    display:flex;
    justify-content:space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--gris-200);
    font-size:0.95rem;
}
.resumen-fila:last-child{ border-bottom:none; }
.resumen-cant{ font-weight:700; color: var(--azul); }

/* ====== Pantalla de éxito ====== */
.exito-icono{
    width:64px; height:64px;
    border-radius:50%;
    background: #dcfce7;
    color: var(--verde-oscuro);
    display:flex; align-items:center; justify-content:center;
    font-size:2rem;
    margin: 10px auto 18px;
}
.texto-centro{ text-align:center; }

/* ====== Toast ====== */
.toast{
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gris-800);
    color:#fff;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 0.9rem;
    z-index: 50;
    opacity:0;
    pointer-events:none;
    transition: opacity .2s ease;
}
.toast.mostrar{ opacity:1; }

/* ====== Modal simple ====== */
.modal-fondo{
    position: fixed; inset:0;
    background: rgba(0,0,0,0.4);
    display:none;
    align-items:flex-end;
    justify-content:center;
    z-index: 40;
}
.modal-fondo.activo{ display:flex; }
.modal-caja{
    background:#fff;
    width:100%;
    max-width:720px;
    border-radius: 16px 16px 0 0;
    padding: 20px;
    max-height: 85vh;
    overflow-y:auto;
}
@media (min-width:600px){
    .modal-fondo{ align-items:center; }
    .modal-caja{ border-radius:16px; }
}

/* ====== Login ====== */
.login-caja{
    max-width: 360px;
    margin: 60px auto;
}