:root {
  --bg: #f7f8fb;
  --surface: #fff;
  --text: #1a1f2c;
  --muted: #6b7280;
  --primary: #1f4ed8;
  --primary-dark: #1a3fb0;
  --accent: #f59e0b;
  --success: #16a34a;
  --danger: #dc2626;
  --border: #e5e7eb;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif; line-height: 1.55; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 680px; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 10px; }
.brand-mark { background: var(--primary); color: #fff; width: 32px; height: 32px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a, .main-nav .link-btn { color: var(--muted); text-decoration: none; font-size: 14.5px; background: none; border: 0; cursor: pointer; padding: 6px 10px; border-radius: 8px; font-family: inherit; font-weight: 500; transition: color .15s, background .15s; }
.main-nav a:hover, .main-nav .link-btn:hover { color: var(--primary); background: var(--bg); }
.main-nav .nav-active { color: var(--primary); font-weight: 600; background: none; }
.main-nav .nav-cta { display: inline-flex; align-items: center; padding: 8px 20px; background: linear-gradient(135deg, var(--fin,#7c3aed), #2563eb); color: #fff; border-radius: 40px; font-weight: 600; font-size: .88rem; box-shadow: 0 3px 12px rgba(124,58,237,.22); transition: transform .18s, box-shadow .18s; }
.main-nav .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(124,58,237,.35); color: #fff; background: linear-gradient(135deg,var(--fin,#7c3aed),#2563eb); }
.main-nav .nav-ghost { display: inline-flex; align-items: center; padding: 7px 18px; background: transparent; color: var(--primary); border: 1.5px solid var(--primary); border-radius: 40px; font-weight: 600; font-size: .88rem; transition: background .18s, color .18s; }
.main-nav .nav-ghost:hover { background: var(--primary); color: #fff; }
.main-nav .nav-sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; flex-shrink: 0; }
.main-nav .nav-cart { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 10px; color: var(--text); font-size: 19px; }
.main-nav .nav-cart:hover { background: var(--bg); color: var(--primary); }
.main-nav .nav-cart-badge { position: absolute; top: -2px; right: -2px; background: var(--primary); color: #fff; font-size: 10.5px; font-weight: 700; min-width: 16px; height: 16px; padding: 0 3px; border-radius: 999px; display: flex; align-items: center; justify-content: center; line-height: 1; }
.site-mob-nav a[href^="/fin/s"],.site-mob-nav a[href^="/fin/l"],.site-mob-nav a[href^="/fin/m"] { padding-left: 28px; font-size: 14px; color: var(--muted); }
.inline { display: inline; }

/* Hero */
.hero { padding: 80px 0 60px; text-align: center; background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); }
.hero h1 { font-size: 44px; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero .accent { color: var(--primary); }
.hero .lead { font-size: 19px; color: var(--muted); max-width: 720px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 24px; }

/* Sections */
.site-main { min-height: 60vh; }
.section { padding: 56px 0; }
.section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { font-size: 28px; margin: 0 0 24px; }

/* Grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 880px) { .grid-3 { grid-template-columns: 1fr; } }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 880px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .grid-4 { grid-template-columns: 1fr; } }

/* Card */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Buttons */
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--border); background: #fff; color: var(--text); text-decoration: none; cursor: pointer; font-size: 15px; font-family: inherit; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 24px; font-size: 17px; }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }

/* Forms */
.form { display: grid; gap: 14px; max-width: 560px; }
.form label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
.form input, .form textarea, .form select { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; font-family: inherit; background: #fff; color: var(--text); }
.form input:focus, .form textarea:focus, .form select:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* Catalog */
.filter-bar { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.filter-bar input, .filter-bar select { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; min-width: 220px; background: #fff; }
.products-grid .product-card { text-decoration: none; color: inherit; display: block; transition: transform .12s ease, box-shadow .12s ease; }
.products-grid .product-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px -12px rgba(0,0,0,.18); }
.product-photo { width: 100%; aspect-ratio: 3/4; background: #f3f4f6; border-radius: 8px; overflow: hidden; margin-bottom: 12px; display: flex; align-items: center; justify-content: center; }
.product-photo.big { aspect-ratio: 4/3; }
.product-photo img { width: 100%; height: 100%; object-fit: contain; padding: 6px; box-sizing: border-box; }
.no-photo { color: var(--muted); font-size: 14px; }

.prices { display: grid; gap: 4px; margin-top: 8px; }
.prices.big { gap: 6px; font-size: 17px; }
.market-price { color: var(--muted); font-size: 13px; }
.market-price s { color: var(--muted); }
.our-price { color: var(--success); font-size: 17px; padding-top: 4px; }
.our-price.big { font-size: 22px; }

/* Product detail */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 20px; }
@media (max-width: 880px) { .product-detail { grid-template-columns: 1fr; } }
.seller-contacts { background: #f9fafb; padding: 14px; border-radius: 8px; margin-bottom: 16px; }
.lock-card { background: #fff7ed; border-color: #fed7aa; }
.lock-card p { margin-bottom: 12px; color: var(--text); }
.lock-card a { margin-right: 8px; }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--border); padding: 32px 0; margin-top: 60px; color: var(--muted); font-size: 14px; }
.site-footer p { margin: 4px 0; }

/* Misc */
.muted { color: var(--muted); }
.small { font-size: 13px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 20px 0; }
.flash { padding: 12px 16px; border-radius: 8px; margin: 16px 0; font-size: 15px; }
.flash-info { background: #eff6ff; color: #1e40af; }
.flash-success { background: #ecfdf5; color: #065f46; }
.flash-error { background: #fef2f2; color: #991b1b; }
.flash-warning { background: #fffbeb; color: #92400e; }

/* Tables (для админки и кабинета) */
.table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; }
.table th, .table td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
.table th { background: #f9fafb; font-weight: 600; }
.table tbody tr:hover { background: #fafafa; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-muted { background: #f3f4f6; color: #4b5563; }

/* ── Бургер-меню (base.html) ── */
.site-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px; margin-left: 8px;
}
.site-burger span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: transform .24s, opacity .18s;
}
.site-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.site-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-mob-nav {
  /* display управляется только через JS (style.display) */
  display: none;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 8px 20px 18px;
}
.site-mob-nav a, .site-mob-nav-btn {
  display: block; padding: 13px 0; font-size: 15px; font-weight: 500;
  color: var(--text); text-decoration: none;
  border-bottom: 1px solid var(--border);
  background: none; border-left: none; border-right: none; border-top: none;
  cursor: pointer; font-family: inherit; width: 100%; text-align: left;
}
.site-mob-nav a:last-child, .site-mob-nav-btn { border-bottom: none; }
.site-mob-nav .site-mob-nav-cta {
  display: block; margin-top: 10px;
  background: var(--primary); color: #fff;
  text-align: center; border-radius: 8px;
  padding: 12px 0; font-weight: 600; border-bottom: none; text-decoration: none;
}
.site-mob-nav .site-mob-nav-cta:hover { background: var(--primary-dark); }
.inline-block { display: inline-block; width: 100%; }

@media (max-width: 768px) {
  .main-nav { display: none; }
  .site-burger { display: flex; }
  /* site-mob-nav: display задаётся JS, не CSS */
}

/* ── Мобильная адаптация ── */
@media (max-width: 640px) {
  /* Шапка */
  .brand { font-size: 15px; gap: 8px; }
  .brand-mark { width: 28px; height: 28px; font-size: 12px; }
  .header-row { height: 56px; }

  /* Секции: меньше вертикальных отступов */
  .section { padding: 32px 0; }
  .section h2 { font-size: 22px; }

  /* Форма: кнопка на всю ширину */
  .form { max-width: 100%; }
  .form .btn { width: 100%; text-align: center; padding: 13px 18px; font-size: 16px; }

  /* Контейнер: добавить боковые отступы */
  .container { padding: 0 16px; }

  /* Футер app */
  .site-footer { padding: 24px 0; margin-top: 32px; }
}

@media (max-width: 400px) {
  /* Очень узкий экран: прячем текст «Фин Формула», оставляем значок */
  .brand span:not(.brand-mark) { display: none; }
}

/* ── КПК-раздел ─────────────────────────────────────────────────────── */
:root {
  --fin: #7c3aed;
  --fin-dark: #5b21b6;
  --fin-light: #ede9fe;
  --fin-emerald: #059669;
}
.fin-subnav { background: #fff; border-bottom: 2px solid var(--fin-light); }
.fin-subnav .container { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; min-height: 44px; }
.fin-subnav a { padding: 8px 14px; font-size: .9rem; color: var(--muted); text-decoration: none; border-radius: 8px; transition: all .15s; }
.fin-subnav a:hover { color: var(--fin); background: var(--fin-light); }
.fin-subnav-active { color: var(--fin) !important; font-weight: 600; }
.fin-subnav-phone { margin-left: auto; }
.fin-subnav-phone a { color: var(--fin) !important; font-weight: 600; font-size: .9rem; }

.fin-hero { padding: 56px 0 40px; background: linear-gradient(135deg, #f5f3ff 0%, #eff6ff 100%); }
.fin-hero h1 { font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 800; margin: 0 0 14px; line-height: 1.2; }
.fin-hero h1 .fin-grad { background: linear-gradient(135deg,var(--fin),#2563eb); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.fin-hero p { font-size: 1.05rem; color: var(--muted); max-width: 540px; margin: 0 0 28px; }
.fin-hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.fin-hero-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.fin-badge { background: #fff; border: 1px solid var(--border); border-radius: 100px; padding: 5px 14px; font-size: .82rem; color: var(--muted); }

.btn-fin { background: linear-gradient(135deg,var(--fin),#2563eb); color:#fff !important; border:none; box-shadow:0 4px 14px rgba(124,58,237,.3); padding:11px 24px; border-radius:10px; font-weight:600; font-size:.95rem; }
.btn-fin:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(124,58,237,.4); color:#fff; }
.btn-fin-outline { background:transparent; color:var(--fin) !important; border:2px solid var(--fin); padding:10px 22px; border-radius:10px; font-weight:600; font-size:.95rem; }
.btn-fin-outline:hover { background:var(--fin-light); }
.btn-fin-emerald { background:linear-gradient(135deg,var(--fin-emerald),#0d9488); color:#fff !important; border:none; box-shadow:0 4px 14px rgba(5,150,105,.25); padding:11px 24px; border-radius:10px; font-weight:600; font-size:.95rem; }

.fin-grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
@media(max-width:700px){ .fin-grid-2{grid-template-columns:1fr;} }
.fin-grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
@media(max-width:900px){ .fin-grid-4{grid-template-columns:repeat(2,1fr);} }
@media(max-width:520px){ .fin-grid-4{grid-template-columns:1fr;} }

.fin-prog { border-radius:12px; overflow:hidden; border:1px solid var(--border); background:#fff; }
.fin-prog-head { padding:24px; color:#fff; }
.fin-prog-head.purple { background:linear-gradient(135deg,var(--fin),#2563eb); }
.fin-prog-head.emerald { background:linear-gradient(135deg,var(--fin-emerald),#0d9488); }
.fin-prog-head.orange { background:linear-gradient(135deg,#f97316,#ef4444); }
.fin-prog-head.violet { background:linear-gradient(135deg,#8b5cf6,#ec4899); }
.fin-prog-head.blue { background:linear-gradient(135deg,#3b82f6,#6366f1); }
.fin-prog-head h3 { font-size:1.2rem; font-weight:800; margin:0 0 4px; }
.fin-prog-head .sub { opacity:.85; font-size:.88rem; margin-bottom:12px; }
.fin-prog-head .rate { font-size:2.2rem; font-weight:800; margin:0 0 4px; }
.fin-prog-head .hint { font-size:.8rem; opacity:.75; }
.fin-prog-body { padding:20px; }
.fin-features { list-style:none; padding:0; margin:0; }
.fin-features li { display:flex; align-items:flex-start; gap:8px; padding:7px 0; border-bottom:1px solid var(--border); font-size:.9rem; color:var(--muted); }
.fin-features li:last-child { border-bottom:none; }
.fin-features li::before { content:'✓'; color:var(--fin); font-weight:700; flex-shrink:0; }

.fin-calc { background:#fff; border:1px solid var(--border); border-radius:14px; padding:28px; box-shadow:0 4px 24px rgba(0,0,0,.07); }
.fin-calc-label { font-weight:600; font-size:.82rem; color:var(--muted); text-transform:uppercase; letter-spacing:.04em; margin-bottom:8px; }
.fin-calc-amount { font-size:1.8rem; font-weight:800; color:var(--fin); margin-bottom:14px; }
.fin-calc input[type=range] { width:100%; -webkit-appearance:none; height:5px; background:var(--border); border-radius:3px; outline:none; cursor:pointer; }
.fin-calc input[type=range]::-webkit-slider-thumb { -webkit-appearance:none; width:18px; height:18px; border-radius:50%; background:var(--fin); box-shadow:0 2px 6px rgba(124,58,237,.4); }
.fin-range-labels { display:flex; justify-content:space-between; font-size:.8rem; color:var(--muted); margin-top:4px; }
.fin-tabs { display:flex; gap:6px; flex-wrap:wrap; margin-bottom:20px; }
.fin-tab { padding:7px 16px; border-radius:100px; border:2px solid var(--border); background:transparent; cursor:pointer; font-size:.88rem; font-weight:600; color:var(--muted); transition:all .15s; }
.fin-tab.active { border-color:var(--fin); background:var(--fin-light); color:var(--fin); }
.fin-toggle { display:flex; border:2px solid var(--border); border-radius:9px; overflow:hidden; }
.fin-toggle-btn { flex:1; padding:9px; text-align:center; cursor:pointer; font-size:.88rem; font-weight:600; color:var(--muted); background:transparent; border:none; transition:all .15s; }
.fin-toggle-btn.active { background:var(--fin); color:#fff; }
.fin-result { background:linear-gradient(135deg,var(--fin-light),#eff6ff); border-radius:10px; padding:20px; margin-top:20px; }
.fin-result-row { display:flex; justify-content:space-between; align-items:center; padding:7px 0; border-bottom:1px solid rgba(124,58,237,.12); }
.fin-result-row:last-child { border-bottom:none; }
.fin-result-row .lbl { color:var(--muted); font-size:.88rem; }
.fin-result-row .val { font-weight:700; }
.fin-result-row .val.big { font-size:1.3rem; color:var(--fin); }

.fin-cta { background:linear-gradient(135deg,var(--fin),#2563eb); border-radius:16px; padding:48px 32px; text-align:center; color:#fff; }
.fin-cta h2 { font-size:clamp(1.5rem,3vw,2rem); font-weight:800; margin:0 0 12px; }
.fin-cta p { opacity:.9; margin:0 0 28px; font-size:1rem; }
.fin-cta-btns { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.btn-fin-white { background:#fff; color:var(--fin) !important; border:none; padding:11px 24px; border-radius:10px; font-weight:700; font-size:.95rem; }
.btn-fin-white:hover { background:#f5f3ff; }
.btn-fin-ghost { background:rgba(255,255,255,.15); color:#fff !important; border:2px solid rgba(255,255,255,.5); padding:10px 22px; border-radius:10px; font-weight:600; font-size:.95rem; }

.fin-stats { display:flex; flex-wrap:wrap; gap:28px; justify-content:center; margin-top:40px; }
.fin-stat-num { font-size:2rem; font-weight:800; color:var(--fin); }
.fin-stat-lbl { font-size:.85rem; color:var(--muted); }

.fin-form .form-group { margin-bottom:16px; }
.fin-form label { display:block; font-weight:600; font-size:.88rem; margin-bottom:6px; }
.fin-form input, .fin-form select, .fin-form textarea { width:100%; padding:10px 14px; border:2px solid var(--border); border-radius:9px; font-size:.93rem; font-family:inherit; color:var(--text); background:#fff; outline:none; transition:border-color .15s; }
.fin-form input:focus, .fin-form select:focus, .fin-form textarea:focus { border-color:var(--fin); }
.fin-form textarea { resize:vertical; min-height:90px; }

.fin-step { display:flex; align-items:flex-start; gap:16px; padding:16px; background:#fff; border:1px solid var(--border); border-radius:10px; margin-bottom:12px; }
.fin-step-num { width:36px; height:36px; border-radius:50%; background:var(--fin); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; flex-shrink:0; font-size:.9rem; }
.fin-step-num.green { background:var(--fin-emerald); }

.fin-alert { border-radius:9px; padding:14px 18px; font-size:.9rem; margin-bottom:16px; }
.fin-alert-info { background:#eff6ff; border:1px solid #bfdbfe; color:#1e40af; }

.fin-compare { width:100%; border-collapse:collapse; margin-top:24px; }
.fin-compare th { padding:12px 16px; text-align:left; font-size:.82rem; font-weight:600; color:var(--muted); background:var(--bg); border-bottom:2px solid var(--border); }
.fin-compare td { padding:12px 16px; border-bottom:1px solid var(--border); font-size:.9rem; }
.fin-compare tr:last-child td { border-bottom:none; }
.fin-compare .hi { color:var(--fin); font-weight:700; }
.fin-compare .lo { color:var(--muted); }

@media(max-width:640px){
  .fin-hero{padding:36px 0 28px;}
  .fin-calc{padding:20px;}
  .fin-cta{padding:32px 20px;}
  .fin-subnav-phone{display:none;}
}