html[data-theme="day"] {
      --page: #f5f7fb;
      --page-alt: #ffffff;
      --hero: #0b1a2e;
      --text: #0f172a;
      --text-soft: #475569;
      --muted: #64748b;
      --border: #e2e8f0;
      --card: #ffffff;
      --card-hover: #c9d6e6;
      --nav-bg: rgba(11, 26, 46, 0.88);
      --nav-link: #8ba3bc;
      --hero-text: #f1f5f9;
      --hero-muted: #8ba3bc;
      --chip-bg: rgba(255,255,255,0.05);
      --chip-border: rgba(255,255,255,0.1);
      --stat-bg: rgba(255,255,255,0.05);
      --stat-border: rgba(255,255,255,0.1);
      --accent: #1d8fbf;
      --accent-2: #2f9e6b;
      --sky: #0ea5e9;
      --emerald: #10b981;
      --icon-sky-bg: #f0f9ff;
      --icon-sky: #0369a1;
      --icon-em-bg: #ecfdf5;
      --icon-em: #047857;
      --icon-cy-bg: #ecfeff;
      --icon-cy: #0e7490;
      --icon-vi-bg: #f5f3ff;
      --icon-vi: #6d28d9;
      --icon-am-bg: #fffbeb;
      --icon-am: #b45309;
      --icon-ro-bg: #fff1f2;
      --icon-ro: #be123c;
      --icon-sl-bg: #f1f5f9;
      --icon-sl: #475569;
      --dark-block: #0f172a;
      --dark-block-text: #e2e8f0;
      --dark-block-muted: #94a3b8;
      --footer: #0b1a2e;
      --footer-muted: #8ba3bc;
      --logo-filter: brightness(0) invert(1);
      --toggle-track: #e2e8f0;
      --toggle-thumb: #0891b2;
      --shadow: 0 14px 36px -14px rgba(15,23,42,0.14);
      --outline-btn-bg: #fff;
      --outline-btn-border: #cbd5e1;
      --social-bg: #f1f5f9;
      --social-color: #475569;
      color-scheme: light;
    }

    html[data-theme="night"] {
      --page: #0a101c;
      --page-alt: #0e1626;
      --hero: #070b14;
      --text: #f1f5f9;
      --text-soft: #cbd5e1;
      --muted: #94a3b8;
      --border: rgba(255,255,255,0.1);
      --card: #121b2c;
      --card-hover: rgba(255,255,255,0.16);
      --nav-bg: rgba(7, 11, 20, 0.88);
      --nav-link: #94a3b8;
      --hero-text: #f1f5f9;
      --hero-muted: #8ba3bc;
      --chip-bg: rgba(255,255,255,0.05);
      --chip-border: rgba(255,255,255,0.1);
      --stat-bg: rgba(255,255,255,0.05);
      --stat-border: rgba(255,255,255,0.1);
      --accent: #22d3ee;
      --accent-2: #34d399;
      --sky: #38bdf8;
      --emerald: #34d399;
      --icon-sky-bg: rgba(14,165,233,0.12);
      --icon-sky: #38bdf8;
      --icon-em-bg: rgba(16,185,129,0.12);
      --icon-em: #34d399;
      --icon-cy-bg: rgba(6,182,212,0.12);
      --icon-cy: #22d3ee;
      --icon-vi-bg: rgba(139,92,246,0.12);
      --icon-vi: #a78bfa;
      --icon-am-bg: rgba(245,158,11,0.12);
      --icon-am: #fbbf24;
      --icon-ro-bg: rgba(244,63,94,0.12);
      --icon-ro: #fb7185;
      --icon-sl-bg: rgba(148,163,184,0.12);
      --icon-sl: #94a3b8;
      --dark-block: #111a2c;
      --dark-block-text: #e2e8f0;
      --dark-block-muted: #94a3b8;
      --footer: #070b14;
      --footer-muted: #8ba3bc;
      --logo-filter: brightness(0) invert(1);
      --toggle-track: #1e293b;
      --toggle-thumb: #22d3ee;
      --shadow: 0 14px 36px -14px rgba(0,0,0,0.45);
      --outline-btn-bg: transparent;
      --outline-btn-border: rgba(255,255,255,0.18);
      --social-bg: rgba(255,255,255,0.06);
      --social-color: #cbd5e1;
      color-scheme: dark;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
      text-size-adjust: 100%;
    }

    body {
      margin: 0;
      font-family: 'Inter', system-ui, sans-serif;
      background: var(--page);
      color: var(--text);
      -webkit-font-smoothing: antialiased;
      transition: background-color 0.35s ease, color 0.35s ease;
      overflow-x: hidden;
      min-width: 0;
    }

    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    .sr-only {
      position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
      overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
    }

    .font-display {
      font-family: 'Manrope', 'Inter', sans-serif;
      font-weight: 700;
      letter-spacing: -0.03em;
    }

    .wrap {
      width: min(72rem, calc(100% - 2rem));
      margin-inline: auto;
      padding-inline: env(safe-area-inset-left) env(safe-area-inset-right);
    }
    @media (max-width: 380px) {
      .wrap { width: min(72rem, calc(100% - 1.25rem)); }
    }

    /* Nav */
    .nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 60;
      background: var(--nav-bg);
      backdrop-filter: blur(18px) saturate(1.3);
      -webkit-backdrop-filter: blur(18px) saturate(1.3);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding-top: env(safe-area-inset-top);
      transition: background-color 0.35s ease;
    }
    .nav-inner {
      min-height: 3.75rem;
      height: 3.75rem;
      display: flex; align-items: center; justify-content: space-between; gap: 0.65rem;
    }
    @media (min-width: 768px) {
      .nav-inner { height: 4rem; min-height: 4rem; gap: 1rem; }
    }
    .logo { min-width: 0; flex-shrink: 1; }
    .logo-img {
      height: 1.7rem; width: auto; max-width: 120px;
      filter: var(--logo-filter);
      transition: filter 0.35s ease;
    }
    @media (min-width: 480px) {
      .logo-img { height: 2rem; max-width: 160px; }
    }
    .nav-links {
      display: none;
      align-items: center;
      gap: 0.85rem;
    }
    @media (min-width: 1100px) {
      .nav-links { display: flex; }
    }
    @media (min-width: 1280px) {
      .nav-links { gap: 1.15rem; }
    }
    .nav-links a {
      color: var(--nav-link); font-size: 0.875rem; font-weight: 500;
      transition: color 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover { color: #fff; }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-shrink: 0;
    }
    @media (min-width: 480px) {
      .nav-actions { gap: 0.65rem; }
    }

    /* Burger */
    .burger {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2.5rem;
      height: 2.5rem;
      border-radius: 0.75rem;
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.06);
      color: #fff;
      cursor: pointer;
      padding: 0;
      transition: background 0.2s, border-color 0.2s;
    }
    .burger:hover { background: rgba(255,255,255,0.1); }
    .burger:focus-visible { outline: 2px solid #67e8f9; outline-offset: 2px; }
    .burger-lines {
      width: 1.1rem;
      height: 0.85rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .burger-lines span {
      display: block;
      height: 2px;
      border-radius: 2px;
      background: #fff;
      transition: transform 0.3s ease, opacity 0.2s ease;
      transform-origin: center;
    }
    .nav.is-open .burger-lines span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
    .nav.is-open .burger-lines span:nth-child(2) { opacity: 0; }
    .nav.is-open .burger-lines span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
    @media (min-width: 1100px) {
      .burger { display: none; }
    }

    /* Mobile drawer */
    .nav-drawer {
      display: none;
      position: fixed;
      top: calc(3.75rem + env(safe-area-inset-top));
      left: 0; right: 0;
      z-index: 55;
      max-height: calc(100dvh - 3.75rem - env(safe-area-inset-top));
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
      background: var(--nav-bg);
      backdrop-filter: blur(20px) saturate(1.3);
      -webkit-backdrop-filter: blur(20px) saturate(1.3);
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding: 0.75rem 1rem 1.25rem;
      transform: translateY(-8px);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease, transform 0.25s ease;
    }
    .nav.is-open .nav-drawer {
      display: block;
      opacity: 1;
      transform: none;
      pointer-events: auto;
    }
    @media (min-width: 768px) {
      .nav-drawer { top: calc(4rem + env(safe-area-inset-top)); max-height: calc(100dvh - 4rem - env(safe-area-inset-top)); }
    }
    @media (min-width: 1100px) {
      .nav-drawer { display: none !important; }
    }
    .nav-drawer a {
      display: flex;
      align-items: center;
      min-height: 3rem;
      padding: 0.65rem 0.85rem;
      border-radius: 0.85rem;
      color: #e2e8f0;
      font-weight: 500;
      font-size: 1rem;
      transition: background 0.2s, color 0.2s;
    }
    .nav-drawer a:active,
    .nav-drawer a:hover {
      background: rgba(255,255,255,0.08);
      color: #fff;
    }
    .nav-drawer-phone {
      margin-top: 0.75rem;
      display: flex !important;
      justify-content: center;
      gap: 0.5rem;
      background: linear-gradient(135deg, #00b4d8 0%, #0891b2 50%, #48bb78 100%) !important;
      color: #fff !important;
      font-weight: 600 !important;
    }
    .nav-overlay {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 50;
      background: rgba(0,0,0,0.45);
      opacity: 0;
      transition: opacity 0.25s ease;
    }
    .nav.is-open .nav-overlay {
      display: block;
      opacity: 1;
    }
    @media (min-width: 1100px) {
      .nav-overlay { display: none !important; }
    }
    body.menu-open { overflow: hidden; }

    /* ── Strict day/night switch ── */
    .theme-toggle {
      --tw: 3.5rem;
      --th: 1.9rem;
      --knob: 1.45rem;
      width: var(--tw);
      height: var(--th);
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.16);
      position: relative;
      cursor: pointer;
      padding: 0;
      flex-shrink: 0;
      overflow: hidden;
      background: #0f172a;
      box-shadow: inset 0 1px 2px rgba(0,0,0,0.35);
      transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }
    html[data-theme="day"] .theme-toggle {
      background: #e2e8f0;
      border-color: rgba(15,23,42,0.12);
      box-shadow: inset 0 1px 2px rgba(15,23,42,0.08);
    }
    .theme-toggle:hover {
      border-color: rgba(34,211,238,0.45);
    }
    .theme-toggle:active .theme-thumb {
      transform: translateX(0) scale(0.94);
    }
    html[data-theme="day"] .theme-toggle:active .theme-thumb {
      transform: translateX(calc(var(--tw) - var(--knob) - 6px)) scale(0.94);
    }
    .theme-toggle:focus-visible {
      outline: 2px solid #22d3ee;
      outline-offset: 2px;
    }
    /* Ручной режим — тонкая cyan-обводка */
    .theme-toggle[data-mode="manual"] {
      border-color: rgba(34,211,238,0.55);
      box-shadow: 0 0 0 1px rgba(34,211,238,0.25);
    }

    .theme-track-icons {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 0.42rem;
      pointer-events: none;
      z-index: 1;
    }
    .theme-track-icons i {
      font-size: 0.58rem;
      line-height: 1;
      opacity: 0.45;
      transition: opacity 0.25s ease;
    }
    .theme-track-icons .i-moon { color: #94a3b8; }
    .theme-track-icons .i-sun { color: #64748b; }
    html[data-theme="night"] .theme-track-icons .i-moon { opacity: 0.85; color: #cbd5e1; }
    html[data-theme="day"] .theme-track-icons .i-sun { opacity: 0.9; color: #0f172a; }

    .theme-thumb {
      position: absolute;
      top: 50%;
      left: 3px;
      width: var(--knob);
      height: var(--knob);
      margin-top: calc(var(--knob) / -2);
      border-radius: 50%;
      z-index: 2;
      display: grid;
      place-items: center;
      background: #1e293b;
      border: 1px solid rgba(255,255,255,0.12);
      color: #e2e8f0;
      font-size: 0.62rem;
      box-shadow: 0 1px 3px rgba(0,0,0,0.35);
      transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), background 0.28s ease, color 0.28s ease, border-color 0.28s ease;
    }
    html[data-theme="day"] .theme-thumb {
      transform: translateX(calc(var(--tw) - var(--knob) - 6px));
      background: #ffffff;
      border-color: rgba(15,23,42,0.1);
      color: #0f172a;
      box-shadow: 0 1px 3px rgba(15,23,42,0.15);
    }
    .theme-thumb .icon-moon,
    .theme-thumb .icon-sun {
      position: absolute;
      transition: opacity 0.2s ease;
    }
    .theme-thumb .icon-sun { opacity: 0; }
    .theme-thumb .icon-moon { opacity: 1; }
    html[data-theme="day"] .theme-thumb .icon-sun { opacity: 1; }
    html[data-theme="day"] .theme-thumb .icon-moon { opacity: 0; }

    /* Buttons */
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
      padding: 0 1.5rem; height: 3.1rem; border-radius: 999px;
      font-weight: 600; font-size: 0.95rem; border: 1px solid transparent;
      transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
    }
    .btn:hover { transform: translateY(-1px); }
    .btn-primary {
      background: linear-gradient(135deg, #00b4d8 0%, #0891b2 50%, #48bb78 100%);
      color: #fff;
      box-shadow: 0 6px 24px -6px rgba(29,143,191,0.55);
    }
    .btn-primary:hover { box-shadow: 0 10px 28px -6px rgba(29,143,191,0.65); }
    .btn-ghost {
      border-color: rgba(255,255,255,0.16); color: #fff;
      background: rgba(255,255,255,0.04);
    }
    .btn-ghost:hover { background: rgba(255,255,255,0.09); }
    .btn-outline {
      border-color: var(--outline-btn-border);
      background: var(--outline-btn-bg);
      color: var(--text);
    }
    .btn-outline:hover { border-color: var(--accent); }
    .btn-sm { height: 2.5rem; padding: 0 1rem; font-size: 0.85rem; }

    /* Hero */
    .hero {
      background: var(--hero);
      position: relative; overflow: hidden;
      padding: 6.25rem 0 3.25rem;
      transition: background-color 0.35s ease;
    }
    @media (min-width: 640px) {
      .hero { padding: 7.25rem 0 4.5rem; }
    }
    @media (min-width: 1024px) {
      .hero { padding: 7.5rem 0 5rem; }
    }
    .hero::before {
      content: ''; position: absolute; inset: 0;
      background:
        radial-gradient(ellipse 70% 55% at 12% 20%, rgba(29,143,191,0.22) 0%, transparent 55%),
        radial-gradient(ellipse 50% 45% at 88% 75%, rgba(47,158,107,0.16) 0%, transparent 50%),
        radial-gradient(ellipse 40% 30% at 55% 10%, rgba(56,189,248,0.08) 0%, transparent 50%);
      pointer-events: none;
    }
    .hero-grid {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(ellipse 80% 70% at 50% 45%, black 15%, transparent 80%);
      pointer-events: none;
    }
    .hero-inner { position: relative; }
    .chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
    .chip {
      display: inline-flex; align-items: center; gap: 0.45rem;
      padding: 0.35rem 0.85rem; border-radius: 999px;
      font-size: 0.8rem; font-weight: 500;
      border: 1px solid var(--chip-border);
      background: var(--chip-bg);
      color: var(--hero-muted);
    }
    .chip i { color: var(--sky); }
    .chip i.em { color: var(--emerald); }

    .hero h1 {
      font-size: clamp(1.75rem, 7.2vw, 3.35rem);
      line-height: 1.1; color: #fff; margin: 0 0 1rem;
      word-wrap: break-word;
      overflow-wrap: anywhere;
    }
    .hero h1 .grad {
      background: linear-gradient(90deg, #38bdf8, #67e8f9, #34d399);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .hero-lead {
      font-size: clamp(0.98rem, 2.6vw, 1.25rem);
      color: rgba(203,213,225,0.95); max-width: 36rem;
      line-height: 1.65; margin: 0 0 1.5rem;
    }
    @media (min-width: 640px) {
      .hero-lead { margin-bottom: 2rem; }
    }
    .hero-cta {
      display: flex; flex-wrap: wrap; gap: 0.65rem;
      margin-bottom: 0;
    }
    .hero-cta .btn {
      flex: 1 1 auto;
      min-width: min(100%, 10.5rem);
    }
    @media (max-width: 379px) {
      .hero-cta .btn { width: 100%; min-width: 0; }
    }
    .hero-layout {
      display: grid; gap: 1.75rem; align-items: end;
    }
    @media (min-width: 640px) {
      .hero-layout { gap: 2.25rem; }
    }
    @media (min-width: 1024px) {
      .hero-layout { grid-template-columns: 1.6fr 1fr; gap: 3rem; }
    }
    .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
    @media (min-width: 480px) {
      .stats { gap: 0.75rem; }
    }
    .stat {
      border-radius: 1rem; border: 1px solid var(--stat-border);
      background: var(--stat-bg); padding: 0.85rem 0.9rem; backdrop-filter: blur(8px);
      min-width: 0;
    }
    @media (min-width: 480px) {
      .stat { padding: 1rem; }
    }
    .stat.wide { grid-column: 1 / -1; }
    .stat strong {
      display: block; font-family: 'Manrope', sans-serif;
      font-size: clamp(1.25rem, 4vw, 1.5rem); color: var(--sky); margin-bottom: 0.2rem;
    }
    .stat.em strong { color: var(--emerald); }
    .stat span { font-size: 0.875rem; color: #94a3b8; }
    .stat .title { font-size: 0.875rem; color: #94a3b8; margin-bottom: 0.25rem; }
    .stat .body { color: #fff; font-weight: 500; line-height: 1.4; }

    /* Sections */
    .section { padding: 3.25rem 0; }
    @media (min-width: 640px) { .section { padding: 4.25rem 0; } }
    @media (min-width: 1024px) { .section { padding: 5rem 0; } }
    .section-alt {
      background: var(--page-alt);
      border-block: 1px solid var(--border);
      transition: background-color 0.35s ease, border-color 0.35s ease;
    }
    .section-label {
      display: inline-flex; align-items: center; gap: 0.5rem;
      font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em;
      text-transform: uppercase; color: var(--accent); margin-bottom: 0.85rem;
    }
    .section-label::before {
      content: ''; width: 1.25rem; height: 2px; border-radius: 2px;
      background: linear-gradient(90deg, var(--accent), transparent);
    }
    .section h2 {
      font-size: clamp(1.5rem, 5vw, 2.25rem);
      margin: 0 0 0.85rem; color: var(--text);
      line-height: 1.2;
      overflow-wrap: anywhere;
    }
    .lead {
      font-size: clamp(1rem, 2.5vw, 1.125rem);
      color: var(--text-soft); line-height: 1.7; margin: 0 0 1rem;
    }
    .text { color: var(--text-soft); line-height: 1.7; margin: 0 0 1rem; }
    .text:last-child { margin-bottom: 0; }
    .text-mt-sm { margin-top: 0.75rem; }
    .text-mt-md { margin-top: 1rem; }
    .mb-0 { margin-bottom: 0; }
    .mb-md { margin-bottom: 1.5rem; }
    .mb-lg { margin-bottom: 2rem; }

    .grid-2 {
      display: grid; gap: 1.75rem;
    }
    @media (min-width: 768px) {
      .grid-2 { gap: 2.25rem; }
    }
    @media (min-width: 1024px) {
      .grid-2 { grid-template-columns: 1fr 1fr; align-items: start; gap: 3rem; }
    }
    .grid-2-center {
      align-items: center;
      gap: 1.5rem;
    }
    @media (min-width: 1024px) {
      .grid-2.grid-2-center { gap: 1.5rem; }
    }
    .grid-3 {
      display: grid; gap: 0.9rem;
    }
    @media (min-width: 520px) { .grid-3 { grid-template-columns: 1fr 1fr; gap: 1rem; } }
    @media (min-width: 1024px) { .grid-3 { grid-template-columns: 1fr 1fr 1fr; gap: 1.25rem; } }

    .equip-lists {
      display: grid;
      gap: 0.25rem 1.5rem;
    }
    @media (min-width: 640px) {
      .equip-lists { grid-template-columns: 1fr 1fr; }
    }

    .card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 1.25rem;
      padding: 1.2rem;
      min-width: 0;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.35s ease;
    }
    @media (min-width: 640px) {
      .card { border-radius: 1.5rem; padding: 1.5rem; }
    }
    @media (hover: hover) and (pointer: fine) {
      .card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow);
        border-color: var(--card-hover);
      }
    }
    .card h3 {
      font-family: 'Manrope', sans-serif; font-weight: 700;
      font-size: 1.15rem; margin: 0 0 0.5rem; color: var(--text);
    }
    .card p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; }

    /* Larger content panels (equipment lists, parts CTA, etc.) */
    .card-panel {
      padding: clamp(1.4rem, 3vw, 2rem);
    }
    .card-raised {
      padding: 1.75rem;
      box-shadow: var(--shadow);
    }
    .panel-title {
      font-family: 'Manrope', sans-serif;
      font-weight: 700;
      font-size: 1.25rem;
      margin: 0 0 1rem;
      color: var(--text);
    }
    .panel-title-sm {
      font-family: 'Manrope', sans-serif;
      font-weight: 700;
      font-size: 1.25rem;
      margin: 0 0 0.75rem;
      color: var(--text);
    }

    .icon-box {
      width: 2.85rem; height: 2.85rem; border-radius: 0.85rem;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem; margin-bottom: 1rem; flex-shrink: 0;
    }
    .icon-sky { background: var(--icon-sky-bg); color: var(--icon-sky); }
    .icon-em { background: var(--icon-em-bg); color: var(--icon-em); }
    .icon-cy { background: var(--icon-cy-bg); color: var(--icon-cy); }
    .icon-vi { background: var(--icon-vi-bg); color: var(--icon-vi); }
    .icon-am { background: var(--icon-am-bg); color: var(--icon-am); }
    .icon-ro { background: var(--icon-ro-bg); color: var(--icon-ro); }
    .icon-sl { background: var(--icon-sl-bg); color: var(--icon-sl); }

    .feature-row { display: flex; gap: 0.85rem; align-items: flex-start; }
    .feature-row .icon-box { margin-bottom: 0; }
    .feature-row > div:last-child { min-width: 0; }
    .feature-head { margin-bottom: 1rem; }
    .feature-head h3 { margin-bottom: 0.25rem; }
    .stack { display: flex; flex-direction: column; gap: 0.85rem; }
    .stack-md { gap: 1rem; }

    .check { list-style: none; margin: 0; padding: 0; }
    .check-mt { margin-top: 0.75rem; }
    .check li {
      display: flex; gap: 0.65rem; align-items: flex-start;
      margin-bottom: 0.55rem; color: var(--text-soft); font-size: 0.92rem; line-height: 1.45;
    }
    .check li .i, .check li i { color: var(--accent-2); margin-top: 0.2rem; flex-shrink: 0; }

    .section-label-block { margin-bottom: 1rem; }
    .link-accent {
      color: var(--accent);
      font-weight: 600;
    }
    .link-accent:hover { color: var(--sky); }

    .specs {
      margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
      display: grid; gap: 1rem;
    }
    @media (min-width: 640px) { .specs { grid-template-columns: 1fr 1fr 1fr; } }
    .specs span { display: block; font-size: 0.875rem; color: var(--muted); margin-bottom: 0.15rem; }
    .specs strong { color: var(--text); font-weight: 600; }

    .price-card {
      background: var(--card); border: 1px solid var(--border);
      border-radius: 1.25rem; padding: 1.2rem;
      display: flex; flex-direction: column; height: 100%;
      min-width: 0;
      transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.35s ease, border-color 0.35s ease;
    }
    @media (min-width: 640px) {
      .price-card { border-radius: 1.5rem; padding: 1.5rem; }
    }
    @media (hover: hover) and (pointer: fine) {
      .price-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    }
    .price-card.featured {
      border-color: var(--accent);
      box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
    }
    .price-card .tag {
      font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em;
      text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem;
    }
    .price-card h3 { font-size: 1.25rem; margin-bottom: 0.25rem; }
    .price-card .sub { font-size: 0.875rem; color: var(--muted); margin-bottom: 1rem; }
    .price-card ul { flex: 1; }

    .subsidy {
      border-radius: 1.5rem; background: var(--dark-block); color: #fff;
      overflow: hidden; position: relative; padding: clamp(1.75rem, 4vw, 3rem);
    }
    .subsidy::before {
      content: ''; position: absolute; inset: 0; pointer-events: none;
      background:
        radial-gradient(ellipse 45% 50% at 0% 0%, rgba(29,143,191,0.25), transparent),
        radial-gradient(ellipse 40% 40% at 100% 100%, rgba(47,158,107,0.18), transparent);
    }
    .subsidy-inner { position: relative; display: grid; gap: 2.5rem; align-items: center; }
    @media (min-width: 1024px) { .subsidy-inner { grid-template-columns: 1fr 1fr; } }
    .subsidy h2 { color: #fff; }
    .subsidy .section-label { color: #7dd3fc; }
    .subsidy .text { color: #cbd5e1; }
    .subsidy .muted { color: #94a3b8; font-size: 0.875rem; line-height: 1.6; }
    .subsidy .hl { color: #fff; font-weight: 700; }
    .metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .metric {
      border-radius: 1rem; background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1); padding: 1.25rem;
    }
    .metric.wide { grid-column: 1 / -1; }
    .metric strong {
      display: block; font-family: 'Manrope', sans-serif;
      font-size: 1.75rem; color: #7dd3fc; margin-bottom: 0.25rem;
    }
    .metric.wide strong { font-size: 1.15rem; }
    .metric.em strong { color: #6ee7b7; }
    .metric span { font-size: 0.875rem; color: #94a3b8; line-height: 1.4; }

    .pricing-cta {
      margin-top: 2rem;
    }
    .pricing-cta a {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-weight: 600;
      color: var(--text-soft);
      transition: color 0.2s;
    }
    .pricing-cta a:hover { color: var(--accent); }

    /* Contacts */
    .contact-row {
      display: flex; gap: 1rem; align-items: flex-start;
      padding: 1.15rem 0; border-bottom: 1px solid var(--border);
    }
    .contact-row:last-of-type { border-bottom: 0; }
    .contact-row-plain {
      border: 0;
      padding: 0;
    }
    .contact-row .icon-box { margin: 0; }
    .contact-row small {
      display: block; font-size: 0.875rem; color: var(--muted); margin-bottom: 0.15rem;
    }
    .contact-row strong, .contact-row a {
      font-family: 'Manrope', sans-serif; font-weight: 700;
      font-size: clamp(1rem, 3.5vw, 1.15rem); color: var(--text); line-height: 1.35;
      word-break: break-word;
    }
    .contact-row a:hover { color: var(--accent); }
    .socials { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
    .socials a {
      width: 2.85rem; height: 2.85rem; border-radius: 0.75rem;
      background: var(--social-bg); color: var(--social-color);
      display: flex; align-items: center; justify-content: center;
      transition: background 0.2s, color 0.2s;
    }
    .socials a:hover { background: var(--icon-sky-bg); color: var(--icon-sky); }
    .contact-actions {
      display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.25rem;
    }
    .contact-actions-flush { margin-top: 0; }
    .contact-actions .btn {
      flex: 1 1 auto;
      min-width: min(100%, 9.5rem);
    }
    @media (max-width: 420px) {
      .contact-actions .btn { width: 100%; min-width: 0; }
      .contact-row { gap: 0.75rem; padding: 1rem 0; }
    }

    /* Footer */
    .footer {
      background: var(--footer); color: var(--footer-muted);
      padding: 3rem 0 calc(2rem + env(safe-area-inset-bottom));
      transition: background-color 0.35s ease;
    }
    .footer-top {
      display: grid; gap: 2rem; margin-bottom: 2rem;
    }
    @media (min-width: 768px) {
      .footer-top { grid-template-columns: 1.2fr 2fr; gap: 3rem; }
    }
    .footer-brand p { margin: 1rem 0 0; font-size: 0.875rem; line-height: 1.65; max-width: 22rem; }
    .footer-cols {
      display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
    }
    @media (min-width: 640px) { .footer-cols { grid-template-columns: 1fr 1fr 1fr; } }
    .footer-cols h3 {
      margin: 0 0 0.75rem; font-size: 0.9rem; font-weight: 600; color: #fff;
    }
    .footer-cols a {
      display: block; font-size: 0.875rem; margin-bottom: 0.45rem;
      color: var(--footer-muted); transition: color 0.2s;
    }
    .footer-cols a:hover { color: #fff; }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 1.25rem;
      display: flex; flex-direction: column; gap: 0.45rem;
      font-size: 0.82rem;
    }
    @media (min-width: 640px) {
      .footer-bottom {
        flex-direction: row; flex-wrap: wrap;
        justify-content: space-between; align-items: center;
        font-size: 0.875rem; padding-top: 1.5rem;
      }
    }
    .footer-bottom p { margin: 0; }
    .footer-bottom a { color: #38bdf8; font-weight: 500; }
    .footer-bottom a:hover { color: #7dd3fc; }
    .footer-note {
      margin: 1rem 0 0;
      padding-top: 1rem;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 0.78rem;
      line-height: 1.55;
      color: #64748b;
      max-width: 42rem;
    }
    .footer-note a { color: #38bdf8; font-weight: 500; }
    .footer-note a:hover { color: #7dd3fc; }

    .mobile-bar { display: none; }
    @media (max-width: 767px) {
      body { padding-bottom: calc(4.6rem + env(safe-area-inset-bottom)); }
      .mobile-bar {
        display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
        gap: 0.55rem;
        padding: 0.65rem 0.85rem calc(0.65rem + env(safe-area-inset-bottom));
        padding-left: max(0.85rem, env(safe-area-inset-left));
        padding-right: max(0.85rem, env(safe-area-inset-right));
        background: var(--nav-bg);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-top: 1px solid rgba(255,255,255,0.08);
      }
      .mobile-bar a {
        flex: 1; min-height: 2.85rem; height: 2.85rem; border-radius: 999px;
        display: flex; align-items: center; justify-content: center;
        font-weight: 600; font-size: 0.88rem;
        -webkit-tap-highlight-color: transparent;
      }
      .mobile-bar .ghost {
        background: rgba(255,255,255,0.1); color: #fff;
        border: 1px solid rgba(255,255,255,0.15);
      }
      .nav .btn-phone-desktop { display: none; }
      .footer { padding-bottom: calc(1.25rem + env(safe-area-inset-bottom)); }
    }

    .btn-phone-desktop { display: none; }
    @media (min-width: 768px) {
      .btn-phone-desktop { display: inline-flex; }
    }

    .head-block { max-width: 36rem; margin-bottom: 2rem; }
    @media (min-width: 640px) { .head-block { margin-bottom: 2.5rem; } }
    @media (min-width: 1024px) { .head-block { margin-bottom: 3rem; } }

    /* Parts gallery */
    .parts-gallery {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.65rem;
      margin-bottom: 2rem;
    }
    @media (min-width: 640px) {
      .parts-gallery {
        grid-template-columns: repeat(6, 1fr);
        gap: 0.85rem;
        margin-bottom: 2.5rem;
      }
      .parts-gallery-item:nth-child(1) { grid-column: span 3; }
      .parts-gallery-item:nth-child(2) { grid-column: span 3; }
      .parts-gallery-item:nth-child(3),
      .parts-gallery-item:nth-child(4),
      .parts-gallery-item:nth-child(5) { grid-column: span 2; }
    }
    @media (min-width: 1024px) {
      .parts-gallery { gap: 1rem; margin-bottom: 3rem; }
    }
    .parts-gallery-item {
      position: relative;
      display: block;
      width: 100%;
      padding: 0;
      margin: 0;
      border: 1px solid var(--border);
      border-radius: 1rem;
      overflow: hidden;
      background: var(--card);
      cursor: zoom-in;
      aspect-ratio: 3 / 4;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }
    @media (min-width: 640px) {
      .parts-gallery-item { border-radius: 1.15rem; }
      .parts-gallery-item:nth-child(1),
      .parts-gallery-item:nth-child(2) { aspect-ratio: 4 / 3; }
    }
    .parts-gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.35s ease;
    }
    @media (hover: hover) and (pointer: fine) {
      .parts-gallery-item:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow);
        border-color: var(--card-hover);
      }
      .parts-gallery-item:hover img { transform: scale(1.04); }
    }
    .parts-gallery-item:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }
    .parts-gallery-item:nth-child(5) {
      grid-column: 1 / -1;
    }
    @media (min-width: 640px) {
      .parts-gallery-item:nth-child(5) { grid-column: span 2; }
    }

    /* Lightbox — gallery viewer for all parts photos */
    .lightbox {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 1rem;
      padding-top: max(1rem, env(safe-area-inset-top));
      padding-bottom: max(1rem, env(safe-area-inset-bottom));
      background: rgba(7, 11, 20, 0.88);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      touch-action: pan-y;
      user-select: none;
      -webkit-user-select: none;
    }
    .lightbox.is-open {
      display: flex;
    }
    .lightbox-figure {
      margin: 0;
      max-width: min(92vw, 56rem);
      max-height: min(88vh, 100%);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.65rem;
      pointer-events: none;
    }
    .lightbox-figure img {
      max-width: 100%;
      max-height: min(72vh, 900px);
      width: auto;
      height: auto;
      object-fit: contain;
      border-radius: 0.75rem;
      box-shadow: 0 24px 64px -16px rgba(0,0,0,0.55);
      background: #0b1220;
      pointer-events: none;
    }
    .lightbox-meta {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.35rem;
      max-width: 36rem;
      padding-inline: 0.5rem;
    }
    .lightbox-counter {
      color: #e2e8f0;
      font-size: 0.8125rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      font-variant-numeric: tabular-nums;
      opacity: 0.9;
    }
    .lightbox-cap {
      color: #cbd5e1;
      font-size: 0.8125rem;
      text-align: center;
      line-height: 1.45;
    }
    @media (min-width: 640px) {
      .lightbox-cap { font-size: 0.875rem; }
      .lightbox-figure img { max-height: min(78vh, 900px); }
    }
    .lightbox-close {
      position: absolute;
      top: max(0.75rem, env(safe-area-inset-top));
      right: max(0.75rem, env(safe-area-inset-right));
      width: 2.75rem;
      height: 2.75rem;
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 999px;
      background: rgba(255,255,255,0.08);
      color: #fff;
      font-size: 1.75rem;
      line-height: 1;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s;
      z-index: 2;
    }
    .lightbox-close:hover { background: rgba(255,255,255,0.16); }
    .lightbox-nav {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 2.5rem;
      height: 2.5rem;
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 999px;
      background: rgba(255,255,255,0.1);
      color: #fff;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s, opacity 0.2s;
      z-index: 2;
      -webkit-tap-highlight-color: transparent;
    }
    .lightbox-nav:hover { background: rgba(255,255,255,0.18); }
    .lightbox-nav:disabled {
      opacity: 0.35;
      cursor: default;
      pointer-events: none;
    }
    .lightbox-nav .i { width: 1rem; height: 1rem; margin: 0; }
    .lightbox-prev { left: max(0.4rem, env(safe-area-inset-left)); }
    .lightbox-next { right: max(0.4rem, env(safe-area-inset-right)); }
    @media (min-width: 640px) {
      .lightbox-nav {
        width: 2.75rem;
        height: 2.75rem;
      }
      .lightbox-prev { left: max(0.65rem, env(safe-area-inset-left)); }
      .lightbox-next { right: max(0.65rem, env(safe-area-inset-right)); }
    }
    body.lightbox-open { overflow: hidden; }

    /* Small phones */
    @media (max-width: 360px) {
      .chips { gap: 0.4rem; }
      .chip { font-size: 0.72rem; padding: 0.3rem 0.65rem; }
      .theme-toggle {
        --tw: 3.25rem;
        --th: 1.8rem;
        --knob: 1.35rem;
      }
    }

    /* Prefer reduced motion */
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }

/* ── Local SVG icons ── */
.i {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.15em;
  fill: none;
  stroke: currentColor;
  flex-shrink: 0;
}
.i-fill { fill: currentColor; stroke: none; }
.icon-box .i { width: 1.15rem; height: 1.15rem; }
.theme-thumb .i { width: 0.7rem; height: 0.7rem; }
.theme-track-icons .i { width: 0.62rem; height: 0.62rem; }
.chip .i { width: 0.85rem; height: 0.85rem; }
.socials .i { width: 1.1rem; height: 1.1rem; }
.check .i { width: 0.9rem; height: 0.9rem; margin-top: 0.15rem; }
.btn .i { width: 0.85rem; height: 0.85rem; }
.nav-drawer-phone .i { width: 0.85rem; height: 0.85rem; }

/* ── Cookie banner ── */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: calc(1rem + env(safe-area-inset-bottom));
  z-index: 80;
  max-width: 28rem;
  margin-inline: auto;
  padding: 1rem 1.1rem;
  border-radius: 1rem;
  background: var(--card, #121b2c);
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  box-shadow: 0 16px 40px -12px rgba(0,0,0,0.45);
  color: var(--text, #f1f5f9);
  display: none;
  gap: 0.85rem;
  align-items: flex-start;
}
.cookie-banner.is-visible {
  display: flex;
  flex-direction: column;
  animation: cookie-in 0.35s ease;
}
@keyframes cookie-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.cookie-banner p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--muted, #94a3b8);
}
.cookie-banner a { color: var(--accent, #22d3ee); font-weight: 600; }
.cookie-banner-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  width: 100%;
}
.cookie-banner .btn {
  height: 2.4rem;
  padding: 0 1.1rem;
  font-size: 0.85rem;
}
@media (max-width: 767px) {
  .cookie-banner {
    bottom: calc(5rem + env(safe-area-inset-bottom));
  }
}
@media (min-width: 640px) {
  .cookie-banner {
    left: 1.25rem;
    right: auto;
    margin-inline: 0;
  }
}

/* theme track icons as SVG */
.theme-track-icons .i-moon { color: #94a3b8; opacity: 0.45; }
.theme-track-icons .i-sun { color: #64748b; opacity: 0.45; }
html[data-theme="night"] .theme-track-icons .i-moon { opacity: 0.9; color: #cbd5e1; }
html[data-theme="day"] .theme-track-icons .i-sun { opacity: 0.95; color: #0f172a; }
.theme-thumb .i { position: absolute; }
.btn .i, .mobile-bar a .i, .nav-drawer-phone .i { margin-right: 0.35rem; }
.nav-back .i { margin-right: 0.35rem; vertical-align: -0.2em; }
.feature-row .icon-box .i { width: 1.15rem; height: 1.15rem; }