:root {
    /* ===== COLORS ===== */
    --color-primary: #c82128;
    --color-primary-dark: #a91b21;
    --color-primary-light: #fbe8e9;

    --color-black: #111111;
    --color-text-muted: #6b6b6b;

    --color-white: #ffffff;
    --color-bg: #f7f7f7;
    --color-border: #e5e5e5;

    /* Semantic aliases (overridden in dark mode) */
    --color-text: var(--color-black);
    --color-bg-soft: var(--color-bg);
    --color-surface: var(--color-white);
    --color-input-bg: var(--color-white);

    /* ===== TYPOGRAPHY ===== */
    --font-main: "Inter", sans-serif;

    --text-xs: 0.75rem;     /* 12px */
    --text-sm: 0.875rem;    /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */

    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* ===== SPACING ===== */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* ===== SIZES ===== */
    --container-width: 1200px;

    --header-height: 64px;
    --mobile-header-height: 60px;

    --button-height: 44px;
    --input-height: 44px;

    --icon-sm: 18px;
    --icon-md: 22px;
    --icon-lg: 28px;

    /* ===== BORDERS ===== */
    --border-width: 1px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 999px;

    /* ===== SHADOWS ===== */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);

    /* ===== TRANSITIONS ===== */
    --transition: 0.2s ease;
}

/* ===== DARK MODE ===== */
:root[data-theme="dark"] {
    color-scheme: dark;

    --color-black: #e5e5e5;
    --color-text: #e5e5e5;
    --color-white: #1a1a1a;
    --color-bg: #121212;
    --color-border: #2c2c2c;
    --color-text-muted: #999999;
    --color-primary-light: #3a1012;

    --color-bg-soft: #222222;
    --color-surface: #1e1e1e;
    --color-input-bg: #252525;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
}

/* ===== CORE RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    font-size: var(--text-base);
    font-weight: var(--font-regular);
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
}

h3 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

/* ===== RESPONSIVE DISPLAY UTILITIES ===== */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none !important;
}

/* ===== BASE BUTTON SYSTEM ===== */
.btn {
    min-height: var(--button-height);
    padding: 0 18px;
    border: 0 !important;
    border-radius: var(--radius-md) !important;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: var(--color-primary) !important;
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-outline {
    background: var(--color-white) !important;
    color: var(--color-primary) !important;
    border: 1px solid var(--color-primary) !important;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-black);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-1);
}

.relative {
    position: relative;
}

.badge {
    position: absolute;
    top: -2px;
    right: -4px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 9px;
    font-weight: var(--font-bold);
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   DESKTOP NAVBAR (PHP Includes)
   ========================================================================== */
.pc-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-nav {
    width: min(var(--container-width));
    height: var(--header-height);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-8);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-logo {
    flex-shrink: 0;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-size: 1.35rem;
    font-weight: var(--font-bold);
    color: var(--color-black);
}

.nav-logo a img {
    display: block;
    height: 1.35rem;
    width: auto;
}

.nav-logo strong {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-left: auto;
}

.nav-item {
    position: relative;
}

.nav-item>a {
    height: var(--header-height);
    display: flex;
    align-items: center;
    gap: 5px;
    position: relative;
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: color var(--transition);
}

.nav-item>a:hover {
    color: var(--color-primary);
}

.nav-item>a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.2s ease;
}

.nav-item>a:hover::after,
.nav-item>a.active::after {
    width: 100%;
}

.nav-item>a.active {
    color: var(--color-primary);
}

/* NAVBAR DROPDOWN */
.dropdown-toggle i {
    font-size: 10px;
    transition: transform 0.2s ease;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.service-dropdown {
    position: absolute;
    top: calc(100% + 1px);
    left: -15px;
    width: 560px;
    padding: 10px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.dropdown:hover .service-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sd-group {
    display: flex;
    flex-direction: column;
}

.sd-group + .sd-group {
    padding-left: 8px;
    border-left: 1px solid var(--color-border);
}

.sd-group-title {
    padding: 6px 10px 4px;
    font-size: 10px;
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
}

.service-dropdown a,
.service-dropdown .sd-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 11px 10px;
    text-decoration: none;
    color: var(--color-text);
    background: none;
    border: none;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
}

.service-dropdown a:hover,
.service-dropdown .sd-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.service-dropdown a>i,
.service-dropdown .sd-item>i {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.service-dropdown a span,
.service-dropdown .sd-item span {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.service-dropdown a strong,
.service-dropdown .sd-item strong {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.service-dropdown a small,
.service-dropdown .sd-item small {
    font-size: 11px;
    color: var(--color-text-muted);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-left: auto;
}

.nav-search {
    width: 210px;
    height: 40px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    background: var(--color-bg);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    transition: border var(--transition), background var(--transition);
}

.nav-search:focus-within {
    background: var(--color-white);
    border-color: var(--color-primary);
}

.nav-search i {
    color: var(--color-text-muted);
}

.nav-search input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    font-family: inherit;
    font-size: var(--text-sm);
    color: var(--color-text);
}

.nav-search input::placeholder {
    color: var(--color-text-muted);
}

.sell-btn-bg-sc {
    height: 40px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    transition: background var(--transition), transform var(--transition);
}

/* ==========================================================================
   DESKTOP FOOTER (PHP Includes)
   ========================================================================== */
.site-footer {
    margin-top: var(--space-12);
    background: var(--color-black);
    color: var(--color-white);
}

.footer-container {
    width: min(100% - 32px, var(--container-width));
    margin-inline: auto;
    padding: 60px 0 50px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--color-white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: var(--font-bold);
}

.footer-logo span {
    color: var(--color-primary);
}

.footer-logo img {
    display: block;
    height: 1.5rem;
    width: auto;
}

.footer-brand p {
    margin: 0;
    color: #a9a9a9;
    font-size: var(--text-sm);
    line-height: 1.7;
}

.footer-socials {
    display: flex;
    gap: 8px;
    margin-top: 22px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #333;
    border-radius: var(--radius-md);
    color: #cfcfcf;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.footer-socials a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.footer-column h4 {
    margin: 0 0 8px;
    color: var(--color-white);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.footer-column a {
    width: fit-content;
    color: #a9a9a9;
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition), transform var(--transition);
}

.footer-column a:hover {
    color: var(--color-white);
    transform: translateX(3px);
}

.footer-contact a,
.footer-contact p {
    display: flex;
    align-items: center;
    gap: 9px;
}

.footer-contact i {
    color: var(--color-primary);
    font-size: 15px;
}

.footer-contact p {
    margin: 0;
    color: #a9a9a9;
    font-size: var(--text-sm);
}

.footer-bottom {
    border-top: 1px solid #2c2c2c;
}

.footer-bottom-inner {
    width: min(100% - 32px, var(--container-width));
    min-height: 65px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-bottom p {
    margin: 0;
    color: #888;
    font-size: 12px;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #888;
    text-decoration: none;
    font-size: 12px;
    transition: color var(--transition);
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* ==========================================================================
   SEARCH AUTOCOMPLETE WIDGET
   ========================================================================== */
.search-widget {
    position: relative;
}

.search-suggest {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    z-index: 1200;
    min-width: 300px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
    overflow: hidden;
}

.nav-search .search-suggest {
    left: auto;
    right: 0;
}

.search-suggest-dym {
    padding: 10px 14px;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
}

.search-suggest-dym strong {
    color: var(--color-primary);
}

.search-suggest-dym:hover,
.search-suggest-dym.is-active {
    background: var(--color-bg-soft);
}

.search-suggest-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    cursor: pointer;
}

.search-suggest-item:hover,
.search-suggest-item.is-active {
    background: var(--color-bg-soft);
}

.search-suggest-img {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.search-suggest-img-ph {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-soft);
    color: var(--color-text-muted);
}

.search-suggest-info {
    flex: 1;
    min-width: 0;
}

.search-suggest-title {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-black);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-suggest-title mark {
    background: transparent;
    color: var(--color-primary);
    font-weight: var(--font-bold);
}

.search-suggest-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-suggest-price {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    white-space: nowrap;
}

.search-suggest-empty {
    padding: 14px;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* Mobile header search row */
.mobile-search-row {
    padding: 10px 16px;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.mobile-search-row .nav-search {
    width: 100%;
    height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.mobile-search-row .search-suggest {
    min-width: 0;
}

/* Marketplace "Did you mean" hint */
.did-you-mean {
    padding: 0 var(--space-4) var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.did-you-mean a {
    color: var(--color-primary);
    font-weight: var(--font-semibold);
    text-decoration: underline;
}

/* Offset content behind fixed mobile bottom nav */
@media (max-width: 1024px) {
    .app-container {
        padding-bottom: 40px;
    }
}

/* ===== THEME TOGGLE BUTTON ===== */
.theme-toggle-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-text);
    cursor: pointer;
    font-size: 18px;
    transition: background var(--transition), color var(--transition), border var(--transition);
}

.theme-toggle-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}