/* 
  Titanium OS 4.0: Quantum Edition 
  Next-Gen App UI Tokens 
*/

:root {
    --quantum-bg: #ffffff;
    --quantum-surface: #fffdf9;
    --quantum-green: #2fa122;
    --quantum-green-soft: rgba(47, 161, 34, 0.1);
    --quantum-glass: rgba(255, 255, 255, 0.82);
    --quantum-blur: 32px;
    --quantum-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    --quantum-radius: 28px;
    --quantum-border: 0.5px solid rgba(0, 0, 0, 0.06);
    
    /* Layout: App Canvas */
    --canvas-width: 480px; 
}

/* 📱 Centered App Canvas (Desktop-to-Mobile Continuity) */
@media (min-width: 768px) {
    body {
        background: #f1f5f9; /* Outer Desk Decor */
        display: flex;
        justify-content: center;
        margin: 0;
        min-height: 100vh;
    }
    #page {
        width: var(--canvas-width);
        max-width: 100%;
        background: var(--quantum-bg);
        box-shadow: 0 40px 100px rgba(0,0,0,0.15);
        margin: 40px auto;
        border-radius: 40px;
        overflow: hidden;
        height: min(90vh, 900px);
        position: relative;
    }
    /* Hide scrollbars for the OS look */
    #page::-webkit-scrollbar { display: none; }
    #page { -ms-overflow-style: none; scrollbar-width: none; }
}

body {
    background-color: var(--quantum-surface);
    font-family: 'Outfit', sans-serif;
    color: #1e293b;
    -webkit-font-smoothing: antialiased;
}

/* ✨ Glassmorphic Island Header */
.site-header.glass {
    background: var(--quantum-glass);
    backdrop-filter: blur(var(--quantum-blur));
    -webkit-backdrop-filter: blur(var(--quantum-blur));
    border: none;
    margin: 12px;
    border-radius: 24px;
    box-shadow: var(--quantum-shadow);
    height: 70px;
}

/* 🛍️ Quantum Product Card (Zepto Style) */
.shop-grid-item {
    background: #fff;
    border-radius: var(--quantum-radius);
    padding: 12px;
    border: var(--quantum-border);
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
}

.shop-grid-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--quantum-shadow);
}

.product-image-wrapper {
    background: #f8fafc;
    border-radius: 20px;
    padding: 15px;
    margin-bottom: 12px;
}

.product-title {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 8px;
    color: #0f172a;
}

.product-price {
    font-size: 16px;
    font-weight: 950;
    color: var(--quantum-green);
}

/* ➕ Floating Quick Add */
.product-atc {
    background: var(--quantum-green) !important;
    color: #fff !important;
    border-radius: 12px !important;
    border: none !important;
    padding: 12px !important;
    font-weight: 900 !important;
    box-shadow: 0 8px 16px rgba(47, 161, 34, 0.2);
    transition: 0.2s !important;
}

.product-atc:active {
    transform: scale(0.9) !important;
}

/* 🚀 Floating Bottom HUD */
.mobile-nav {
    background: var(--quantum-glass);
    backdrop-filter: blur(var(--quantum-blur));
    border: var(--quantum-border);
    margin: 0 16px 16px;
    border-radius: 24px;
    height: 64px;
    bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: 0 -10px 40px rgba(0,0,0,0.05);
}

.nav-item.active {
    background: var(--quantum-green-soft);
    padding: 8px 16px;
    border-radius: 16px;
}