:root {
    --bg-body: #133056;
    --bg-surface: #1a3d6b;
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-hover: rgba(255, 255, 255, 0.10);
    --text-primary: #eef2f8;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.35);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(167, 139, 250, 0.35);
    --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.3);
    --shadow-modal: 0 20px 60px rgba(0, 0, 0, 0.5);
    --accent-1: #7c6df0;
    --accent-2: #2dd4bf;
    --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --scrollbar-track: #1a3d6b;
    --scrollbar-thumb: #7c6df0;
    --font-base: clamp(0.85rem, 1.1vw + 0.4rem, 1.25rem);
    --font-small: clamp(0.7rem, 0.9vw + 0.3rem, 0.95rem);
    --font-large: clamp(1.2rem, 1.8vw + 0.5rem, 2.0rem);
    --card-min-width: clamp(150px, 14vw, 220px);
    --header-height: 76px;
}

body.light-mode {
    --bg-body: #eef2f7;
    --bg-surface: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.6);
    --bg-glass-hover: rgba(0, 0, 0, 0.04);
    --text-primary: #1a1a2e;
    --text-secondary: rgba(0, 0, 0, 0.7);
    --text-muted: rgba(0, 0, 0, 0.3);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(108, 92, 231, 0.4);
    --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.04);
    --shadow-modal: 0 20px 60px rgba(0, 0, 0, 0.12);
    --accent-1: #6c5ce7;
    --accent-2: #00b894;
    --scrollbar-track: #e2e6ee;
    --scrollbar-thumb: #6c5ce7;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: var(--font-base); scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s;
    line-height: 1.5;
    padding-top: var(--header-height);
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 12px; }

.app-wrapper {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - var(--header-height));
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 clamp(12px, 2vw, 32px);
    width: 100%;
    flex: 1;
}

.header-modern {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.6rem;
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    flex-wrap: nowrap;
    gap: 0.6rem;
    min-height: var(--header-height);
    transition: background 0.3s;
}
.header-modern .logo {
    display: flex; align-items: center; gap: 0.6rem;
    font-weight: 800;
    font-size: clamp(1.1rem, 1.6vw, 1.8rem);
    white-space: nowrap; flex-shrink: 0; cursor: pointer;
}
.header-modern .logo img {
    height: clamp(32px, 4vw, 50px); width: auto;
    border-radius: 12px; background: white; padding: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.header-modern .logo span {
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nav-wrapper { display: flex; align-items: center; flex: 1 1 auto; justify-content: center; position: relative; }
.nav-links { display: flex; align-items: center; gap: 0.2rem; flex-wrap: nowrap; overflow: hidden; padding: 0 0.4rem; }
.nav-links a {
    padding: 0.4rem 0.8rem; border-radius: 40px;
    font-size: var(--font-small); font-weight: 600; white-space: nowrap;
    transition: all 0.2s; color: var(--text-secondary); flex-shrink: 0; cursor: pointer;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); background: var(--bg-glass-hover); }
.nav-more-btn { display: none; background: none; border: none; color: var(--text-secondary); font-size: var(--font-small); font-weight: 600; cursor: pointer; padding: 0.4rem 0.8rem; border-radius: 40px; transition: all 0.2s; font-family: inherit; align-items: center; gap: 0.3rem; }
.nav-more-btn:hover { background: var(--bg-glass-hover); color: var(--text-primary); }
.nav-dropdown { display: none; position: absolute; top: calc(100% + 8px); right: 0; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; padding: 0.6rem; min-width: 180px; box-shadow: var(--shadow-modal); z-index: 100; flex-direction: column; gap: 0.2rem; }
.nav-dropdown.open { display: flex; }
.nav-dropdown a { padding: 0.4rem 0.8rem; border-radius: 10px; color: var(--text-secondary); font-size: var(--font-small); font-weight: 500; transition: all 0.2s; white-space: nowrap; cursor: pointer; }
.nav-dropdown a:hover { background: var(--bg-glass-hover); color: var(--text-primary); }
.header-modern .right-group { display: flex; align-items: center; gap: 0.8rem; flex-shrink: 0; }
.support-btn {
    display: flex; align-items: center; gap: 0.4rem;
    background: var(--bg-glass-hover); border: 1px solid var(--border-color);
    border-radius: 40px; color: var(--text-primary);
    padding: 0.3rem 1rem 0.3rem 0.8rem;
    font-size: var(--font-small); font-weight: 600; cursor: pointer;
    transition: all 0.25s; font-family: inherit; white-space: nowrap; position: relative;
}
.support-btn:hover { background: var(--bg-glass); border-color: var(--accent-1); }
.support-btn .badge-support { background: #ef4444; color: #fff; border-radius: 40px; padding: 0 0.5rem; font-size: 0.65rem; font-weight: 700; line-height: 1.4; margin-left: 0.2rem; }
.theme-toggle { background: var(--bg-glass-hover); border: 1px solid var(--border-color); border-radius: 40px; color: var(--text-primary); padding: 0.3rem 0.8rem; font-size: clamp(0.9rem, 1vw, 1.2rem); cursor: pointer; transition: all 0.25s; display: flex; align-items: center; gap: 0.4rem; font-family: inherit; white-space: nowrap; flex-shrink: 0; }
.theme-toggle:hover { background: var(--bg-glass); border-color: var(--accent-1); }

.filter-section { margin-bottom: 1.2rem; display: none; }
.filter-section.visible { display: block; }
.filter-chips { display: flex; gap: 0.8rem; flex-wrap: wrap; padding: 0.4rem 0; overflow-x: auto; scrollbar-width: none; }
.filter-chips::-webkit-scrollbar { display: none; }
.filter-chip {
    display: flex; align-items: center; gap: 0.4rem; cursor: pointer;
    transition: all 0.2s; flex-shrink: 0;
    padding: 0.3rem 1rem; border-radius: 40px;
    background: var(--bg-glass); border: 1px solid var(--border-color);
    color: var(--text-secondary); font-size: var(--font-small);
    font-weight: 600; font-family: inherit; white-space: nowrap;
}
.filter-chip:hover { transform: scale(1.03); background: var(--bg-glass-hover); color: var(--text-primary); }
.filter-chip.active2 { background: rgba(124, 109, 240, 0.2); border-color: var(--accent-1); color: var(--accent-1); }
.filter-chip .chip-icon { font-size: 1.1rem; }

.main-grid { display: grid; grid-template-columns: minmax(200px, 260px) 1fr; gap: 1.5rem; flex: 1; padding-top: 0.5rem; }
.sidebar-modern { display: flex; flex-direction: column; gap: 0.8rem; position: sticky; top: calc(var(--header-height) + 0.8rem); max-height: calc(100vh - var(--header-height) - 2rem); overflow-y: auto; padding-right: 0.4rem; align-self: start; }
.sidebar-modern .block { padding: 0.8rem 1rem; border-radius: 18px; background: var(--bg-glass); backdrop-filter: blur(12px); border: 1px solid var(--border-color); transition: all 0.3s; }
.sidebar-modern .block:hover { border-color: var(--border-hover); }
.sidebar-modern .block-title { font-weight: 700; font-size: var(--font-small); text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); margin-bottom: 0.6rem; display: flex; align-items: center; gap: 0.4rem; }
.sidebar-modern .block-title i { color: var(--accent-1); }
.sidebar-modern .block .inline-links { display: flex; flex-wrap: wrap; gap: 0.4rem 0.8rem; }
.sidebar-modern .block .inline-links a { display: inline-flex; align-items: center; gap: 0.3rem; color: var(--text-secondary); font-size: var(--font-small); font-weight: 500; transition: color 0.2s; padding: 0.1rem 0.2rem; border-radius: 6px; }
.sidebar-modern .block .inline-links a:hover { color: var(--accent-1); background: var(--bg-glass-hover); }
.sidebar-modern .block .inline-links a i { width: 1.2rem; color: var(--accent-2); }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--card-min-width), 1fr)); gap: clamp(12px, 1.5vw, 24px); }
.product-card {
    background: var(--bg-glass); backdrop-filter: blur(12px);
    border: 1px solid var(--border-color); border-radius: 20px;
    padding: 1rem 0.6rem 0.8rem; text-align: center;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer; display: flex; flex-direction: column;
    align-items: center; gap: 0.5rem; min-height: 210px;
    position: relative; box-shadow: var(--shadow-card);
}
.product-card:hover { transform: translateY(-4px) scale(1.01); border-color: var(--border-hover); background: var(--bg-glass-hover); box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08); }
.product-card .logo-wrap { height: clamp(70px, 8vw, 100px); width: 100%; display: flex; align-items: center; justify-content: center; padding: 0.2rem; background: rgba(255, 255, 255, 0.08); border-radius: 16px; transition: background 0.3s; }
body.light-mode .product-card .logo-wrap { background: rgba(0, 0, 0, 0.03); }
.product-card .logo-wrap img { max-height: 80%; max-width: 85%; object-fit: contain; filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.04)); transition: all 0.3s; }
.product-card:hover .logo-wrap img { transform: scale(1.02); }
.product-card .name { font-weight: 700; font-size: var(--font-small); line-height: 1.2; color: var(--text-primary); flex: 1; display: flex; align-items: center; justify-content: center; word-break: break-word; }
.product-card .badge { font-size: 0.6rem; font-weight: 700; text-transform: uppercase; padding: 0.1rem 0.6rem; border-radius: 40px; background: rgba(124, 109, 240, 0.15); color: var(--accent-1); border: 1px solid rgba(124, 109, 240, 0.1); }
.product-card .actions { display: flex; gap: 0.3rem; flex-wrap: wrap; justify-content: center; width: 100%; margin-top: 0.2rem; }
.product-card .actions button { font-size: 0.6rem; padding: 0.2rem 0.6rem; border-radius: 40px; border: none; cursor: pointer; transition: all 0.2s; font-family: inherit; font-weight: 600; }
.product-card .actions .btn-problem { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.product-card .actions .btn-problem:hover { background: rgba(239, 68, 68, 0.25); }
.product-card .actions .btn-video { background: rgba(45, 212, 191, 0.15); color: var(--accent-2); }
.product-card .actions .btn-video:hover { background: rgba(45, 212, 191, 0.25); }
.product-card .warning-badge { position: absolute; top: 0.4rem; right: 0.4rem; font-size: clamp(1rem, 1.2vw, 1.4rem); cursor: pointer; color: #f59e0b; transition: transform 0.2s; background: rgba(0, 0, 0, 0.2); border-radius: 50%; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; }
.product-card .warning-badge:hover { transform: scale(1.15); }
.product-card.secureboot-ie-hide { display: none !important; }

.page-content { display: none; animation: fadeIn 0.4s ease; }
.page-content.active { display: block; }
.page-content h2 { font-size: var(--font-large); font-weight: 700; margin-bottom: 1rem; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(8px); z-index: 9999; display: none; align-items: center; justify-content: center; padding: 1rem; }
.modal-overlay.active { display: flex; }
.modal-box { background: var(--bg-surface); border-radius: 28px; padding: 1.8rem 2rem; max-width: 520px; width: 100%; border: 1px solid var(--border-color); box-shadow: var(--shadow-modal); position: relative; animation: modalFade 0.3s ease; max-height: 90vh; overflow-y: auto; }
.modal-box.wide { max-width: 780px; }
@keyframes modalFade { from { opacity: 0; transform: scale(0.96) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-box .close-btn { position: absolute; top: 0.8rem; right: 1.2rem; font-size: 2rem; color: var(--text-muted); background: none; border: none; cursor: pointer; transition: color 0.2s; line-height: 1; }
.modal-box .close-btn:hover { color: var(--text-primary); }
.modal-box h3 { font-size: var(--font-large); font-weight: 700; margin-bottom: 0.8rem; color: var(--text-primary); }
.modal-box p { color: var(--text-secondary); line-height: 1.6; font-size: var(--font-small); margin-bottom: 0.8rem; }
.modal-box .form-group { margin-bottom: 1rem; }
.modal-box .form-group label { display: block; font-weight: 600; font-size: var(--font-small); margin-bottom: 0.2rem; color: var(--text-secondary); }
.modal-box .form-group input, .modal-box .form-group textarea { width: 100%; padding: 0.6rem 1rem; border-radius: 12px; border: 1px solid var(--border-color); background: var(--bg-glass); color: var(--text-primary); font-size: var(--font-small); font-family: inherit; transition: border 0.2s; resize: vertical; }
.modal-box .form-group input:focus, .modal-box .form-group textarea:focus { outline: none; border-color: var(--accent-1); }
.modal-box .modal-btn-group { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.2rem; }
.modal-box .modal-btn-group button { padding: 0.6rem 1.6rem; border: none; border-radius: 40px; font-weight: 700; font-size: var(--font-small); cursor: pointer; transition: all 0.25s; font-family: inherit; flex: 1 0 auto; }
.modal-box .modal-btn-group .btn-primary { background: var(--accent-gradient); color: #fff; }
.modal-box .modal-btn-group .btn-primary:hover { transform: scale(1.02); box-shadow: 0 8px 24px rgba(124, 109, 240, 0.3); }
.modal-box .modal-btn-group .btn-ghost { background: var(--bg-glass-hover); color: var(--text-secondary); }
.modal-box .modal-btn-group .btn-ghost:hover { background: var(--bg-glass); color: var(--text-primary); }
.modal-box .media-container { position: relative; padding-bottom: 56.25%; height: 0; margin: 0.8rem 0; border-radius: 16px; overflow: hidden; background: #000; }
.modal-box .media-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }
.modal-box .instruction-content { background: var(--bg-glass); padding: 1rem; border-radius: 16px; border-left: 4px solid var(--accent-1); margin: 0.8rem 0; white-space: pre-wrap; font-size: var(--font-small); color: var(--text-primary); }
.contact-block { background: var(--bg-glass); padding: 0.8rem 1rem; border-radius: 16px; margin: 0.8rem 0; display: flex; flex-wrap: wrap; gap: 0.8rem 1.5rem; justify-content: center; border: 1px solid var(--border-color); }
.contact-block a { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--text-secondary); font-size: var(--font-small); transition: color 0.2s; }
.contact-block a:hover { color: var(--accent-1); }
.contact-block .phone-link { font-weight: 600; color: var(--accent-1); font-size: var(--font-base); }

.footer-modern { position: sticky; bottom: 0; left: 0; right: 0; background: var(--bg-surface); border-top: 1px solid var(--border-color); backdrop-filter: blur(16px); padding: 0.6rem 1.6rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.6rem; font-size: var(--font-small); color: var(--text-muted); z-index: 20; margin-top: auto; box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1); }
.footer-modern .footer-stories { display: flex; gap: 1.2rem; align-items: center; flex-wrap: wrap; }
.footer-modern .footer-stories a { display: flex; align-items: center; gap: 0.3rem; color: var(--text-secondary); transition: color 0.2s; font-weight: 500; cursor: pointer; }
.footer-modern .footer-stories a:hover { color: var(--accent-1); }
.footer-modern .footer-right { display: flex; gap: 1.2rem; align-items: center; flex-wrap: wrap; }
.footer-social { display: flex; align-items: center; gap: 0.8rem; font-size: 1.2rem; }
.footer-social a { color: var(--text-secondary); transition: color 0.2s; display: inline-flex; }
.footer-social a:hover { color: var(--accent-1); }

.drawer-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.3); backdrop-filter: blur(4px); z-index: 9997; display: none; }
.drawer-overlay.active { display: block; }
.filter-drawer { position: fixed; top: 0; left: 0; height: 100%; width: 85%; max-width: 340px; background: var(--bg-surface); box-shadow: 4px 0 30px rgba(0, 0, 0, 0.2); z-index: 9998; transform: translateX(-105%); transition: transform 0.35s cubic-bezier(0.23, 1, 0.32, 1); padding: 1.2rem 1rem; overflow-y: auto; border-right: 1px solid var(--border-color); }
.filter-drawer.open { transform: translateX(0); }
.filter-drawer .drawer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; }
.filter-drawer .drawer-close { font-size: 1.8rem; background: none; border: none; color: var(--text-muted); cursor: pointer; }

.fade-in { animation: fadeIn 0.5s ease forwards; opacity: 0; }
@keyframes fadeIn { to { opacity: 1; } }
.tour-highlight { outline: 3px solid var(--accent-1) !important; outline-offset: 4px !important; border-radius: 12px; }

@media (max-width: 1024px) { .main-grid { grid-template-columns: 1fr; } .sidebar-modern { display: none !important; } }
@media (max-width: 768px) { body { padding-top: 60px; } .header-modern { min-height: 60px; --header-height: 60px; padding: 0.6rem 0.8rem; } .products-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 0.6rem; } .product-card { min-height: 160px; padding: 0.6rem 0.4rem; } .product-card .logo-wrap { height: 60px; } .product-card .name { font-size: 0.65rem; } .filter-chip { font-size: 0.6rem; padding: 0.2rem 0.6rem; } }
@media (max-width: 500px) { .products-grid { grid-template-columns: repeat(2, 1fr); } }