:root {
    --bg-light: #FDF8F0;
    --text-light: #2C2418;
    --accent-light: #B45F2B;
    --accent2-light: #D9A066;
    --border-light: rgba(0, 0, 0, 0.1);
    --card-bg-light: #FFFCF8;
    /* بافت کاغذ در حالت روشن - پررنگ‌تر و قابل مشاهده */
    --paper-texture-light:
        repeating-linear-gradient(45deg, rgba(0,0,0,0.05) 0px, rgba(0,0,0,0.05) 1px, transparent 1px, transparent 12px),
        repeating-radial-gradient(circle at 20% 30%, rgba(0,0,0,0.03) 0px, rgba(0,0,0,0.03) 2px, transparent 2px, transparent 8px),
        repeating-linear-gradient(135deg, rgba(0,0,0,0.02) 0px, rgba(0,0,0,0.02) 2px, transparent 2px, transparent 16px);

    --bg-dark: #2A241E;
    --text-dark: #F2E8DA;
    --accent-dark: #E08E4A;
    --accent2-dark: #CBA16C;
    --border-dark: rgba(255, 255, 255, 0.08);
    --card-bg-dark: #3A3229;
    --paper-texture-dark:
        repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0px, rgba(255,255,255,0.03) 1px, transparent 1px, transparent 8px),
        repeating-radial-gradient(circle at 20% 30%, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 2px, transparent 2px, transparent 6px);
}
body.light-mode {
    --bg: var(--bg-light);
    --text: var(--text-light);
    --accent: var(--accent-light);
    --accent2: var(--accent2-light);
    --border: var(--border-light);
    --card-bg: var(--card-bg-light);
    --paper-texture: var(--paper-texture-light);
}
body.dark-mode {
    --bg: var(--bg-dark);
    --text: var(--text-dark);
    --accent: var(--accent-dark);
    --accent2: var(--accent2-dark);
    --border: var(--border-dark);
    --card-bg: var(--card-bg-dark);
    --paper-texture: var(--paper-texture-dark);
}

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

body {
    font-family: 'Vazirmatn', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding: 1.5rem;
    min-height: 100vh;
}

/* کانتینر کاغذی با بافت قابل مشاهده */
.paper-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: 0 20px 40px -12px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.6);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
/* بافت کاغذ روی کل کانتینر - هم اکنون قابل مشاهده است */
.paper-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--paper-texture);
    pointer-events: none;
    z-index: 0;
}
.paper-container > * {
    position: relative;
    z-index: 1;
}

/* هدر */
.paper-header {
    text-align: center;
    padding: 2.5rem 1.5rem 1.8rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}
.paper-logo {
    width: 120px;
    height: auto;
    max-width: 100%;
    display: block;
    margin: 0 auto 1.5rem;
    /*border-radius: 50%;    */
    object-fit: contain;
    /*background: var(--card-bg);*/
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 4px;
}
.paper-header h1 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -1px;
    margin-bottom: 0.3rem;
}
.paper-description {
    font-size: 1rem;
    opacity: 0.8;
}

/* دسته‌بندی‌ها */
.paper-category {
    margin: 2rem 1.8rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px dashed var(--border);
}
.paper-category:last-child { border-bottom: none; }
.paper-category h2 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
    padding: 0 0 0.3rem 0;
    border-bottom: 2px solid var(--accent2);
    display: inline-block;
    letter-spacing: -0.3px;
}

/* گرید محصولات */
.paper-products {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.2rem;
}
@media (min-width: 1024px) {
    .paper-products { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}

/* کارت کاغذی - استایل کامل */
.paper-product {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem 1.2rem;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

/* افکت هاور کارت */
.paper-product:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    border-color: var(--accent2);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-bottom: 0.25rem;
}
.product-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    flex: 1;
}
.product-price {
    flex-shrink: 0;
    text-align: left;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.5rem;
    white-space: normal;
}
.old-price, .new-price {
    order: 1;  /* قیمت‌ها در ردیف اول */
}
.old-price {
    text-decoration: line-through;
    font-size: clamp(0.85rem, 2vw, 1rem);
    opacity: 0.6;
    margin-bottom: 0; /* حذف margin-bottom قبلی */
    display: inline-block;
    color: red;
}
.new-price {
    font-size: clamp(1.2rem, 3.2vw, 1.6rem);
    font-weight: 800;
    color: var(--accent);
    display: inline-block;
}
.out-of-stock {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: #b87c6f;
    color: white;
    font-size: 0.65rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-weight: 600;
    z-index: 2;
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.product-desc {
    font-size: 0.85rem;
    opacity: 0.75;
    line-height: 1.4;
    margin-top: 0.2rem;
}

/* فوتر */
.paper-footer {
    padding: 1.8rem 1.8rem 1.2rem;
    border-top: 1px solid var(--border);
    background: rgba(0,0,0,0.01);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}
.qr-code { text-align: center; }
.qr-code p { font-size: 0.8rem; opacity: 0.7; margin-top: 0.4rem; }
.social-icons a {
    color: var(--accent);
    font-size: 1.4rem;
    margin-left: 1rem;
    transition: 0.2s;
}

.copyright a{
    text-decoration: none;
    color: var(--accent);
}
.social-icons a:hover { color: var(--accent2); transform: scale(1.05); }
.copyright {
    text-align: center;
    margin-top: 1.2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;


}
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .paper-category { margin: 1.5rem 1rem; }
    .paper-product { padding: 0.8rem 1rem; }
}

@media print {
    body, .paper-container {
        background: white;
        color: black;
        box-shadow: none;
        margin: 0;
        padding: 0;
    }
    .paper-product { break-inside: avoid; border: 1px solid #ccc; }
}