/* TEKING — v2 «бордо» */
:root {
    --bg: #241118;
    --bg-deep: #1a0b10;
    --panel: #2e161f;
    --glass: rgba(255,255,255,0.04);
    --glass-border: rgba(255,255,255,0.08);
    --accent: #ff4d5e;
    --accent-hover: #ff6b7a;
    --accent-soft: rgba(255,77,94,0.12);
    --accent-border: rgba(255,77,94,0.35);
    --red: #c0392b;
    --text: #f5e9ec;
    --text-secondary: #b9a3ab;
    --neon-glow: 0 0 40px rgba(255,77,94,0.25), 0 0 12px rgba(255,77,94,0.15);
    --radius: 16px;
    --font: 'Inter', sans-serif;
    --font-display: 'Manrope', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.glass {
    background: var(--glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}
.neon-border {
    border: 1px solid var(--accent-border);
    box-shadow: var(--neon-glow);
}
.accent { color: var(--accent); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* Header */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(26,11,16,0.75);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 60px;
}
.logo {
    font-family: var(--font-display);
    font-weight: 800; font-size: 22px; letter-spacing: 0.14em;
    color: var(--accent); text-decoration: none;
    text-shadow: 0 0 14px rgba(255,77,94,0.45);
}
.nav { display: flex; gap: 28px; }
.nav a {
    color: var(--text-secondary); text-decoration: none; font-size: 14px;
    transition: color .2s;
}
.nav a:hover { color: var(--text); }

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 22px; border-radius: 10px; font-size: 14px; font-weight: 600;
    cursor: pointer; border: none; transition: all .2s; text-decoration: none;
}
.btn-primary {
    background: var(--accent); color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover); transform: translateY(-2px);
    box-shadow: 0 0 18px rgba(255,77,94,0.4);
}
.btn-glow { box-shadow: 0 0 16px rgba(255,77,94,0.3); }
.btn-glow:hover { box-shadow: 0 0 26px rgba(255,77,94,0.45); }

/* Hero */
.hero {
    padding: 110px 0 30px;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, #33141d 0%, var(--bg) 70%);
    text-align: center;
}
.hero-kicker {
    font-size: 13px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 16px;
}
.hero-text h1 {
    font-family: var(--font-display); font-weight: 800; font-size: 46px;
    line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 14px;
}
.hero-sub {
    font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 36px;
}

/* Chat */
.chat-section { padding: 10px 0 70px; }
.chat-window { max-width: 880px; margin: 0 auto; overflow: hidden; background: var(--panel); }
.chat-header {
    display: flex; align-items: center; gap: 12px; padding: 16px 20px;
    border-bottom: 1px solid var(--glass-border);
}
.online-indicator {
    width: 9px; height: 9px; border-radius: 50%; background: #2ee6a8;
    box-shadow: 0 0 8px rgba(46,230,168,0.6);
}
.chat-title { font-weight: 600; font-size: 15px; }
.chat-status { font-size: 12px; color: var(--text-secondary); }
.chat-badge {
    margin-left: auto; font-family: var(--font-mono); font-size: 11px;
    color: var(--accent); border: 1px solid var(--accent-border);
    padding: 3px 10px; border-radius: 20px; background: var(--accent-soft);
}

/* Input on top */
.chat-input-area { padding: 18px 20px; border-bottom: 1px solid var(--glass-border); }
.input-label {
    display: flex; align-items: center; gap: 8px;
    font-weight: 600; font-size: 14px; margin-bottom: 10px;
}
.input-label::before {
    content: ''; width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 8px rgba(255,77,94,0.6);
}
.input-row { display: flex; gap: 10px; }
#chatInput {
    flex: 1; background: rgba(0,0,0,0.28); border: 1px solid var(--accent-border);
    border-radius: 12px; padding: 14px 18px; color: var(--text); font-size: 15px;
    outline: none; transition: all .2s;
}
#chatInput:focus { border-color: var(--accent); box-shadow: 0 0 14px rgba(255,77,94,0.25); }
#chatInput::placeholder { color: var(--text-secondary); }
.send-btn {
    width: 48px; height: 48px; border-radius: 12px; background: var(--accent);
    border: none; color: #fff; display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all .2s; flex-shrink: 0;
}
.send-btn:hover { background: var(--accent-hover); box-shadow: 0 0 16px rgba(255,77,94,0.4); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.quick-chips { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; align-items: center; }
.chips-label { font-size: 13px; color: var(--text-secondary); margin-right: 2px; }
.chip {
    background: var(--accent-soft); border: 1px solid var(--accent-border);
    color: var(--text); padding: 6px 16px; border-radius: 20px;
    font-size: 13px; cursor: pointer; transition: all .2s;
}
.chip:hover { background: var(--accent); color: #fff; }

/* Messages */
.chat-messages {
    padding: 20px; min-height: 260px; max-height: 480px; overflow-y: auto;
    display: flex; flex-direction: column; gap: 14px;
}
.message { display: flex; }
.user-message { justify-content: flex-end; }
.bot-message { justify-content: flex-start; }
.message-bubble {
    padding: 14px 18px; border-radius: 14px; max-width: 82%; font-size: 14.5px; line-height: 1.6;
}
.user-message .message-bubble {
    background: var(--accent-soft); border: 1px solid var(--accent-border);
}
.bot-message .message-bubble {
    background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border);
}

/* Markdown-like table inside bot messages */
.message-bubble table {
    width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 13.5px;
}
.message-bubble th, .message-bubble td {
    padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--glass-border);
}
.message-bubble th {
    font-weight: 600; color: var(--accent); font-size: 12px; text-transform: uppercase;
    letter-spacing: 0.05em;
}
.message-bubble td { color: var(--text); }
.message-bubble td:last-child { font-family: var(--font-mono); }
.message-bubble a { color: var(--accent); text-decoration: none; }
.message-bubble a:hover { text-decoration: underline; }
.message-bubble strong { color: var(--accent); }
.message-bubble blockquote {
    border-left: 3px solid var(--accent); padding-left: 12px; margin: 10px 0;
    color: var(--text-secondary); font-style: italic;
}

/* Compatibility banner */
.compatibility-ok {
    background: rgba(46,230,168,0.1); border: 1px solid rgba(46,230,168,0.25);
    color: #2ee6a8; padding: 8px 12px; border-radius: 8px; font-size: 13px; margin: 8px 0;
}
.compatibility-error {
    background: rgba(192,57,43,0.15); border: 1px solid rgba(192,57,43,0.4);
    color: #ff6b5e; padding: 8px 12px; border-radius: 8px; font-size: 13px; margin: 8px 0;
    box-shadow: 0 0 12px rgba(192,57,43,0.2);
}

/* Typing indicator */
.chat-typing { padding: 0 20px 10px; display: flex; gap: 4px; }
.dot {
    width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
    animation: pulse 1.2s infinite ease-in-out;
}
.dot:nth-child(2) { animation-delay: 0.15s; }
.dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes pulse {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* How-to section */
.howto { padding: 60px 0; background: var(--bg-deep); }
.howto-card { max-width: 720px; margin: 0 auto; padding: 32px; }
.howto-card h2 {
    font-family: var(--font-display); font-weight: 700; font-size: 24px;
    margin-bottom: 14px; text-align: center;
}
.howto-card p { color: var(--text-secondary); font-size: 15px; margin-bottom: 10px; }
.howto-formula {
    text-align: center; font-size: 17px; color: var(--text); margin: 18px 0;
    padding: 14px; border-radius: 12px; background: var(--accent-soft);
    border: 1px solid var(--accent-border); letter-spacing: 0.12em;
}

/* Features */
.features { padding: 60px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature { text-align: center; padding: 24px; }
.feature-icon { font-size: 32px; margin-bottom: 14px; }
.feature-title { font-weight: 600; font-size: 16px; margin-bottom: 8px; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

/* Catalog */
.catalog-section { padding: 60px 0; background: var(--bg-deep); }
.section-title {
    font-family: var(--font-display); font-weight: 700; font-size: 28px;
    text-align: center; margin-bottom: 32px;
}
.catalog-filters {
    display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px;
}
.filter-btn {
    background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
    color: var(--text-secondary); padding: 8px 16px; border-radius: 8px;
    font-size: 13px; cursor: pointer; transition: all .2s;
}
.filter-btn:hover, .filter-btn.active {
    border-color: var(--accent); color: var(--accent); background: var(--accent-soft);
}
.catalog-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px;
}
.catalog-card {
    background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius);
    padding: 18px; transition: transform .2s, border-color .2s;
}
.catalog-card:hover { transform: translateY(-2px); border-color: var(--accent-border); }
.catalog-card .card-category {
    font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--accent); margin-bottom: 6px;
}
.catalog-card .card-model { font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.catalog-card .card-meta { font-size: 12px; color: var(--text-secondary); margin-bottom: 12px; }
.catalog-card .card-price {
    font-family: var(--font-mono); font-size: 16px; font-weight: 500; color: var(--accent);
}
.catalog-card .card-old-price {
    font-family: var(--font-mono); font-size: 13px; color: var(--red);
    text-decoration: line-through; margin-left: 8px;
}
.catalog-card .card-shop { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* Footer */
.footer { padding: 40px 0; border-top: 1px solid var(--glass-border); text-align: center; }
.footer-logo {
    font-family: var(--font-display); font-weight: 800; font-size: 20px;
    letter-spacing: 0.14em; color: var(--accent); margin-bottom: 10px;
}
.footer-text { font-size: 13px; color: var(--text-secondary); max-width: 500px; margin: 0 auto; }

/* Admin page basics (admin.html loads this too) */
.admin-header { margin-bottom: 24px; display: flex; justify-content: space-between; align-items: center; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th, .admin-table td {
    padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--glass-border);
}
.admin-table th { color: var(--accent); font-weight: 600; font-size: 12px; text-transform: uppercase; }
.admin-table td { color: var(--text-secondary); }
.admin-table tr:hover td { color: var(--text); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #d94a3a; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
    border-radius: 8px; padding: 8px 12px; color: var(--text); font-size: 13px; outline: none;
}
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none;
    align-items: center; justify-content: center; z-index: 200;
}
.modal-overlay.active { display: flex; }
.modal { background: var(--bg); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 24px; width: 90%; max-width: 560px; max-height: 90vh; overflow-y: auto; }
.modal h3 { margin-bottom: 16px; font-family: var(--font-display); }

/* Responsive */
@media (max-width: 900px) {
    .hero-text h1 { font-size: 34px; }
    .features-grid { grid-template-columns: 1fr; }
    .nav { display: none; }
    .chat-window { max-width: 100%; }
}
@media (max-width: 600px) {
    .hero-text h1 { font-size: 27px; }
    .hero { padding-top: 96px; }
    .catalog-grid { grid-template-columns: 1fr; }
    .quick-chips { gap: 6px; }
    .chip { font-size: 12px; padding: 5px 12px; }
    .chat-badge { display: none; }
}