/* ─────────────────────────────
       TOKENS
    ───────────────────────────── */
    :root {
      --bg:        #07080c;
      --bg-rgb:    7 8 12;
      --surface:   #0d0f17;
      --surface-rgb: 13 15 23;
      --surface2:  #111420;
      --surface2-rgb: 17 20 32;

      --border:    rgba(255,255,255,0.085);
      --border2:   rgba(255,255,255,0.14);

      --blue:      #4a7cff;
      --blue-dim:  rgba(74,124,255,0.16);
      --blue-glow: rgba(74,124,255,0.28);
      --cyan:      #00d4ff;
      --cyan-dim:  rgba(0,212,255,0.14);
      --green:     #22d3a0;

      --text:      #f2f4ff;
      --text2:     rgba(242,244,255,0.80);
      --text3:     rgba(242,244,255,0.62);

      --white:     #ffffff;
      --danger:    #ff6060;

      --font-display: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui,
                      "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
      --font-body:    "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui,
                      "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
      --font-mono:    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

      --container: 1140px;
      --shadow-soft:
        0 0 0 1px rgba(74,124,255,0.08),
        0 40px 90px rgba(0,0,0,0.60),
        0 0 70px rgba(74,124,255,0.05);
    }


    html[data-theme="light"] {
      --bg:        #f7f8fe;
      --bg-rgb:    247 248 254;
      --surface:   #ffffff;
      --surface-rgb: 255 255 255;
      --surface2:  #f1f4ff;
      --surface2-rgb: 241 244 255;

      --border:    rgba(11,16,32,0.12);
      --border2:   rgba(11,16,32,0.18);

      --blue-dim:  rgba(74,124,255,0.12);
      --blue-glow: rgba(74,124,255,0.22);
      --cyan-dim:  rgba(0,212,255,0.10);

      --text:      #0b1020;
      --text2:     rgba(11,16,32,0.80);
      --text3:     rgba(11,16,32,0.72);
    }

    html[data-theme="light"] .top-nav { background: rgba(var(--bg-rgb), 0.96); }
    html[data-theme="light"] .section-head { background: rgba(var(--surface-rgb), 0.97); }
    html[data-theme="light"] .fab-btn { background: rgba(var(--surface-rgb), 0.96); }
    html[data-theme="light"] .fab-menu { background: rgba(var(--surface-rgb), 0.97); }
    html[data-theme="light"] .nav-drawer { background: rgba(var(--surface-rgb), 0.97); }

    /* ─────────────────────────────
       RESET + BASE
    ───────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.65;
      letter-spacing: -0.1px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      text-rendering: geometricPrecision;
    }

    /* a11y */
    .skip-link {
      position: absolute;
      left: 14px;
      top: 10px;
      transform: translateY(-160%);
      background: var(--text);
      color: var(--bg);
      padding: 10px 12px;
      border-radius: 10px;
      font-size: 13px;
      font-weight: 700;
      text-decoration: none;
      z-index: 999;
    }
    .skip-link:focus { transform: translateY(0); outline: 2px solid rgba(74,124,255,0.65); outline-offset: 3px; }

    :focus-visible {
      outline: 2px solid rgba(74,124,255,0.65);
      outline-offset: 3px;
      border-radius: 8px;
    }

    /* Scrollbar */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: transparent; }
    ::-webkit-scrollbar-thumb { background: rgba(74,124,255,0.7); border-radius: 8px; }

    /* ─────────────────────────────
       BACKGROUND EFFECTS
    ───────────────────────────── */
    .bg-grid {
      position: fixed; inset: 0; z-index: 0; pointer-events: none;
      opacity: 0.35;
      background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
      background-size: 40px 40px;
      mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 42%, transparent 100%);
    }
    .bg-glow-hero {
      position: fixed; top: -220px; left: 50%;
      transform: translateX(-50%);
      width: 960px; height: 520px;
      background: radial-gradient(ellipse, rgba(74,124,255,0.18) 0%, transparent 65%);
      pointer-events: none; z-index: 0;
      animation: glow-pulse 6s ease-in-out infinite;
    }
    html[data-theme="light"] .bg-grid { opacity: 0.12; }
    @keyframes glow-pulse {
      0%,100% { opacity: 1; transform: translateX(-50%) scale(1); }
      50%      { opacity: 0.75; transform: translateX(-50%) scale(1.08); }
    }

    /* ─────────────────────────────
       NAV
    ───────────────────────────── */
    .top-nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 200;
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 40px;
      height: 58px;
      border-bottom: 1px solid var(--border);
      background: rgba(var(--bg-rgb), 0.75);
      backdrop-filter: blur(20px) saturate(180%);
      -webkit-backdrop-filter: blur(20px) saturate(180%);
    }
    .nav-inner {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }
    .nav-logo { display: flex; align-items: center; gap: 9px; text-decoration: none; }
    .nav-logo-mark {
      width: 30px; height: 30px;
      background: var(--blue-dim);
      border: 1px solid rgba(74,124,255,0.35);
      border-radius: 6px;
      display: flex; align-items: center; justify-content: center;
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 600;
      color: var(--blue);
      letter-spacing: -0.5px;
      flex-shrink: 0;
    }
    .nav-logo-text { font-size: 18px; font-weight: 800; color: var(--text); letter-spacing: -0.4px; }
    .nav-logo-text em { color: var(--blue); font-style: normal; }

    .nav-links { display: flex; gap: 6px; list-style: none; }
    .nav-links a {
      text-decoration: none; color: var(--text2);
      font-size: 14px; font-weight: 500;
      padding: 6px 12px; border-radius: 8px;
      transition: color .2s, background .2s;
      letter-spacing: -0.1px;
      white-space: nowrap;
    }
    .nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
    html[data-theme="light"] .nav-links a:hover { background: rgba(11,16,32,0.05); }

    .nav-right { display: flex; align-items: center; gap: 10px; }
    .nav-badge {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; letter-spacing: 0.4px;
      color: var(--green);
      background: rgba(34,211,160,0.08);
      border: 1px solid rgba(34,211,160,0.2);
      padding: 3px 10px; border-radius: 100px;
      display: flex; align-items: center; gap: 6px;
      white-space: nowrap;
    }
    .nav-badge::before {
      content: '';
      width: 5px; height: 5px;
      border-radius: 50%;
      background: var(--green);
      animation: live-pulse 2s infinite;
    }
    @keyframes live-pulse {
      0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,211,160,0.5); }
      50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(34,211,160,0); }
    }

    .nav-cta {
      font-size: 14px; font-weight: 800;
      color: var(--bg); background: var(--text);
      padding: 7px 16px; border-radius: 9px;
      text-decoration: none; letter-spacing: -0.2px;
      transition: background .15s, transform .15s;
      white-space: nowrap;
    }
    .nav-cta:hover { background: #c8d0ff; transform: translateY(-1px); }
    html[data-theme="light"] .nav-cta:hover { background: #2a2f42; color: #fff; }

    .nav-menu-btn {
      display: none;
      align-items: center;
      justify-content: center;
      width: 38px; height: 38px;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.02);
      color: var(--text);
      cursor: pointer;
      transition: background .15s, border-color .15s;
    }
    .nav-menu-btn:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.14); }
    html[data-theme="light"] .nav-menu-btn:hover { background: rgba(11,16,32,0.05); border-color: rgba(11,16,32,0.14); }
    .nav-menu-btn svg { opacity: .9; }

    .nav-drawer-backdrop {
      display: none;
      position: fixed; inset: 0;
      background: rgba(0,0,0,0.55);
      z-index: 190;
    }
    .nav-drawer {
      display: none;
      position: fixed;
      top: 58px;
      left: 12px;
      right: 12px;
      z-index: 210;
      border: 1px solid var(--border2);
      border-radius: 14px;
      background: rgba(var(--surface-rgb), 0.86);
      backdrop-filter: blur(18px) saturate(160%);
      -webkit-backdrop-filter: blur(18px) saturate(160%);
      overflow: hidden;
      box-shadow: 0 30px 80px rgba(0,0,0,0.55);
    }
    .nav-drawer a {
      display: block;
      padding: 14px 14px;
      color: var(--text);
      text-decoration: none;
      font-size: 14px;
      border-bottom: 1px solid var(--border);
    }
    .nav-drawer a:last-child { border-bottom: none; }
    .nav-drawer a:hover { background: rgba(255,255,255,0.04); }
    html[data-theme="light"] .nav-drawer a:hover { background: rgba(11,16,32,0.07); }

    .nav-open .nav-drawer,
    .nav-open .nav-drawer-backdrop { display: block; }

    /* ─────────────────────────────
       HERO
    ───────────────────────────── */
    #hero {
      position: relative; z-index: 1;
      min-height: 100vh;
      display: flex; flex-direction: column;
      align-items: center; justify-content: center;
      padding: 120px 40px 80px;
      text-align: center;
      overflow: hidden;
    }

    .hero-announce {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: var(--font-mono);
      font-size: 13px; letter-spacing: 0.3px;
      color: var(--text2);
      background: var(--surface);
      border: 1px solid var(--border2);
      border-radius: 100px;
      padding: 5px 14px 5px 8px;
      margin-bottom: 32px;
      animation: fade-up .7s ease both;
    }
    .hero-announce-badge {
      font-size: 13px; font-weight: 600; letter-spacing: 0.8px; text-transform: uppercase;
      color: var(--bg); background: var(--blue);
      padding: 2px 8px; border-radius: 100px;
    }

    .hero-title {
      font-size: clamp(52px, 7.5vw, 96px);
      font-weight: 800;
      letter-spacing: -3.5px;
      line-height: 0.95;
      color: var(--text);
      margin-bottom: 20px;
      animation: fade-up .7s .1s ease both;
    }
    .hero-title .line2 {
      background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-title .line3 {
      color: rgba(242,244,255,0.55);
      font-size: 0.45em;
      font-weight: 600;
      letter-spacing: 2px;
      display: block;
      margin-top: 12px;
    }
    html[data-theme="light"] .hero-title .line3 {
      color: rgba(11,16,32,0.50);
    }

    .hero-sub {
      font-family: var(--font-body);
      font-size: 18px; font-weight: 400;
      color: var(--text2); line-height: 1.75;
      max-width: 560px; margin: 0 auto 36px;
      animation: fade-up .7s .18s ease both;
    }

    .hero-actions {
      display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
      margin-bottom: 64px;
      animation: fade-up .7s .25s ease both;
    }
    .btn-hero-primary {
      display: inline-flex; align-items: center; gap: 7px;
      background: var(--blue);
      color: white; font-weight: 700; font-size: 14px;
      padding: 11px 22px; border-radius: 10px;
      text-decoration: none; letter-spacing: -0.2px;
      transition: background .15s, box-shadow .15s, transform .15s;
      box-shadow: 0 0 0 0 rgba(74,124,255,0);
    }
    .btn-hero-primary:hover {
      background: #5d8fff;
      box-shadow: 0 0 24px rgba(74,124,255,0.45);
      transform: translateY(-1px);
    }
    .btn-hero-secondary {
      display: inline-flex; align-items: center; gap: 7px;
      background: transparent;
      color: var(--text2); font-weight: 500; font-size: 14px;
      padding: 11px 22px; border-radius: 10px;
      border: 1px solid var(--border2);
      text-decoration: none; letter-spacing: -0.2px;
      transition: border-color .15s, color .15s, background .15s;
    }
    .btn-hero-secondary:hover {
      border-color: rgba(255,255,255,0.2);
      color: var(--text);
      background: rgba(255,255,255,0.04);
    }
    html[data-theme="light"] .btn-hero-secondary:hover {
      background: rgba(11,16,32,0.04);
      border-color: rgba(11,16,32,0.2);
    }

    @keyframes fade-up {
      from { opacity: 0; transform: translateY(18px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ─── Value board mockup ─── */
    .hero-mockup {
      width: 100%; max-width: 920px;
      animation: fade-up .8s .35s ease both;
      position: relative;
    }
    .hero-mockup::before {
      content: none;
    }

    .mockup-window {
      background: var(--surface);
      border: 1px solid var(--border2);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }
    .mockup-titlebar {
      display: flex; align-items: center; justify-content: space-between;
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      background: rgba(255,255,255,0.02);
    }
    .mock-dots { display: flex; gap: 5px; }
    .mock-dot { width: 10px; height: 10px; border-radius: 50%; }
    .mock-body { padding: 16px; }
    .mock-board-intro {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
      font-size: 13px;
      color: var(--text2);
    }
    .mock-board-intro strong { color: var(--text); }
    .mock-board-intro span {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--text3);
    }

    .mock-value-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-bottom: 12px;
    }
    .value-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 11px 12px;
      min-height: 104px;
      display: flex;
      flex-direction: column;
      gap: 7px;
    }
    .value-card-kicker {
      font-family: var(--font-mono);
      font-size: 11px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      color: var(--blue);
    }
    .value-card-title {
      font-size: 14px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text);
    }
    .value-card-desc {
      font-size: 12px;
      line-height: 1.5;
      color: var(--text2);
    }

    .mock-board-row {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 10px;
    }
    .mock-board-panel {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 12px;
    }
    .mock-panel-head {
      font-size: 13px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 9px;
    }
    .mock-panel-sub {
      font-size: 12px;
      color: var(--text3);
      margin-bottom: 10px;
      line-height: 1.55;
    }
    .mock-result-list {
      list-style: none;
      display: grid;
      gap: 8px;
    }
    .mock-result-list li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 12px;
      color: var(--text2);
      line-height: 1.5;
    }
    .mock-result-list li::before {
      content: '';
      width: 5px;
      height: 5px;
      border-radius: 50%;
      margin-top: 6px;
      background: var(--blue);
      box-shadow: 0 0 8px rgba(74,124,255,0.45);
      flex-shrink: 0;
    }

    .mock-product-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }
    .mock-product-card {
      border: 1px solid var(--border);
      border-radius: 9px;
      padding: 9px;
      background: rgba(var(--surface-rgb), 0.45);
    }
    .mock-product-name {
      font-size: 12px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 5px;
    }
    .mock-product-note {
      font-size: 12px;
      color: var(--text2);
      line-height: 1.45;
    }

    /* ─────────────────────────────
       LOGO STRIP
    ───────────────────────────── */
    .logo-strip {
      position: relative; z-index: 1;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      overflow: hidden;
      background: rgba(255,255,255,0.01);
    }
    .logo-strip-inner {
      display: flex; align-items: center;
      padding: 14px 0;
      animation: marquee-scroll 20s linear infinite;
      width: max-content;
    }
    .logo-chip {
      display: flex; align-items: center; gap: 7px;
      padding: 0 28px;
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; letter-spacing: 1.2px; text-transform: uppercase;
      color: var(--text3); white-space: nowrap;
    }
    .logo-chip span { font-size: 13px; }
    .logo-sep { color: var(--text3); opacity: .3; }
    @keyframes marquee-scroll {
      from { transform: translateX(0); }
      to   { transform: translateX(-50%); }
    }

    /* ─────────────────────────────
       SECTION COMMONS
    ───────────────────────────── */
    .section {
      position: relative; z-index: 1;
      padding: 104px 40px;
      scroll-margin-top: 84px;
    }
    .section::before {
      content: "";
      position: absolute; inset: 0;
      background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0.00) 55%);
      pointer-events: none;
    }
    .section:nth-of-type(even)::before {
      background: linear-gradient(180deg, rgba(255,255,255,0.035) 0%, rgba(255,255,255,0.00) 60%);
    }
    html[data-theme="light"] .section:nth-of-type(even)::before {
      background: linear-gradient(180deg, rgba(11,16,32,0.018) 0%, rgba(11,16,32,0.00) 60%);
    }
    .section > .container { position: relative; z-index: 1; }

    /* 섹션 헤더를 "패널"로 만들어 섹션 구분감을 강화 */
    .section-head {
      background: rgba(var(--surface-rgb), 0.55);
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 26px 26px;
      box-shadow: 0 24px 70px rgba(0,0,0,0.35);
      max-width: 860px;
      margin-left: auto;
      margin-right: auto;
    }
    .container {
      max-width: var(--container);
      margin: 0 auto;
    }
    .section-label {
      display: flex; align-items: center; gap: 8px;
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase;
      color: var(--blue); margin-bottom: 12px;
    }
    .section-label::before {
      content: ''; width: 16px; height: 1px; background: var(--blue);
    }
    .section-title {
      font-size: clamp(32px, 4vw, 52px);
      font-weight: 800; letter-spacing: -2px;
      color: var(--text); line-height: 1;
      margin-bottom: 10px;
    }
    .section-sub {
      font-family: var(--font-body);
      font-size: 17px; font-weight: 400;
      color: var(--text2); line-height: 1.7; max-width: 660px;
    }

    /* Reveal */
    .reveal { opacity: 0; transform: translateY(20px); transition: opacity .65s ease, transform .65s ease; }
    .reveal.in { opacity: 1; transform: none; }
    .reveal-delay-1 { transition-delay: .08s; }
    .reveal-delay-2 { transition-delay: .16s; }
    .reveal-delay-3 { transition-delay: .24s; }

    /* ─────────────────────────────
       PRODUCTS
    ───────────────────────────── */
    #products { border-top: 1px solid var(--border); }
    .products-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      margin-top: 48px;
      box-shadow: 0 40px 110px rgba(0,0,0,0.50);
    }
    .product-card {
      background: var(--surface);
      padding: 36px;
      position: relative;
      overflow: hidden;
      transition: background .2s;
      display: block;
      min-height: 320px;
    }
    .product-card:hover { background: var(--surface2); }
    .product-card::after {
      content: '';
      position: absolute; inset: 0;
      background: radial-gradient(ellipse 60% 40% at 50% 0%, var(--blue-glow), transparent);
      opacity: 0; transition: opacity .3s;
      pointer-events: none;
    }
    .product-card:hover::after { opacity: 1; }

    .product-card.featured {
      grid-column: span 2;
      display: grid; grid-template-columns: 1fr 1fr; gap: 44px;
      background: var(--surface2);
      min-height: 360px;
    }

    .pc-eyebrow {
      display: flex; align-items: center; gap: 8px;
      margin-bottom: 20px;
    }
    .pc-badge {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 600; letter-spacing: 0.8px; text-transform: uppercase;
      padding: 3px 10px; border-radius: 100px;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .badge-new { background: rgba(74,124,255,0.15); color: var(--blue); border-color: rgba(74,124,255,0.3); }
    .badge-stable { background: rgba(34,211,160,0.10); color: var(--green); border-color: rgba(34,211,160,0.25); }
    .badge-soon { background: rgba(255,255,255,0.04); color: var(--text3); border-color: var(--border); }

    .pc-platform {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; color: var(--text2); letter-spacing: 0.4px;
      white-space: nowrap;
    }
    .pc-title {
      font-size: 32px; font-weight: 800; letter-spacing: -1.5px;
      color: var(--text); line-height: 1; margin-bottom: 10px;
    }
    .pc-desc {
      font-family: var(--font-body);
      font-size: 15px; font-weight: 400;
      color: var(--text2); line-height: 1.75; margin-bottom: 20px;
      max-width: 520px;
    }

    .pc-features { list-style: none; margin-bottom: 24px; }
    .pc-features li {
      display: flex; align-items: center; gap: 8px;
      font-size: 14px; color: var(--text2); padding: 4px 0;
    }
    .pc-features li::before {
      content: '';
      width: 14px; height: 1px;
      background: var(--blue); flex-shrink: 0;
    }

    .pc-price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
    .pc-price {
      font-size: 28px; font-weight: 800; letter-spacing: -1.5px;
      color: var(--text);
    }
    .pc-price-note {
      font-family: var(--font-mono);
      font-size: 13px; color: var(--text2); opacity: .92;
    }

    .pc-actions { display: flex; gap: 8px; flex-wrap: wrap; }
    .proof-stack {
      display: grid;
      gap: 10px;
      margin-top: 48px;
    }
    .proof-list {
      list-style: none;
      display: grid;
      gap: 7px;
      margin-top: 10px;
    }
    .proof-list li {
      position: relative;
      font-family: var(--font-body);
      font-size: 14px;
      font-weight: 400;
      line-height: 1.65;
      color: var(--text2);
    }
    .proof-list strong { color: var(--text); font-weight: 700; }
    .proof-links {
      position: relative;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 14px;
    }
    .btn-primary {
      display: inline-flex; align-items: center; gap: 6px;
      background: var(--blue); color: white;
      font-size: 13px; font-weight: 700; letter-spacing: -0.1px;
      padding: 9px 18px; border-radius: 9px;
      text-decoration: none; transition: background .15s, box-shadow .15s, transform .15s;
    }
    .btn-primary:hover {
      background: #5d8fff;
      box-shadow: 0 0 20px rgba(74,124,255,0.35);
      transform: translateY(-1px);
    }
    .btn-ghost {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid var(--border2); color: var(--text2);
      font-size: 13px; font-weight: 500;
      padding: 9px 18px; border-radius: 9px;
      text-decoration: none; transition: border-color .15s, color .15s, background .15s;
      background: rgba(255,255,255,0.01);
    }
    .btn-ghost:hover { border-color: rgba(255,255,255,0.2); color: var(--text); background: rgba(255,255,255,0.04); }
    html[data-theme="light"] .btn-ghost:hover { border-color: rgba(11,16,32,0.2); background: rgba(11,16,32,0.07); }
    .btn-status {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px dashed var(--border2); color: var(--text3);
      font-size: 13px; font-weight: 500;
      padding: 9px 18px; border-radius: 9px;
      background: rgba(255,255,255,0.01);
      cursor: default;
      user-select: none;
    }
    html[data-theme="light"] .btn-status {
      border-color: rgba(11,16,32,0.24);
      color: rgba(11,16,32,0.62);
      background: rgba(11,16,32,0.03);
    }

    /* Product visual (mini dashboard preview) */
    .pc-visual {
      display: flex; flex-direction: column; gap: 8px;
      justify-content: center;
    }
    .pv-header {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 10px; padding: 10px 14px;
      display: flex; align-items: center; justify-content: space-between;
    }
    .pv-title-small {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; color: var(--text3);
    }
    .pv-val {
      font-size: 16px; font-weight: 800; letter-spacing: -0.8px;
      color: var(--text);
    }
    .pv-mini-badge {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; color: var(--green);
    }
    .pv-chart-mini {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 10px; padding: 12px;
    }
    .pv-bars {
      display: flex; align-items: flex-end; gap: 3px; height: 50px;
    }
    .pv-bar {
      flex: 1; border-radius: 2px 2px 0 0;
      background: rgba(74,124,255,0.2);
    }
    .pv-bar:nth-child(1){height:35%} .pv-bar:nth-child(2){height:52%}
    .pv-bar:nth-child(3){height:41%} .pv-bar:nth-child(4){height:68%}
    .pv-bar:nth-child(5){height:55%} .pv-bar:nth-child(6){height:80%}
    .pv-bar:nth-child(7){height:72%} .pv-bar:nth-child(8){height:90%; background: rgba(0,212,255,0.5);}
    .pv-rows { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
    .pv-row {
      display: flex; justify-content: space-between;
      font-family: var(--font-mono); font-size: 13px; font-weight: 500;
      color: var(--text3);
    }
    .pv-row span:last-child { color: var(--text2); }

    /* ─────────────────────────────
       PRINCIPLES / CAPABILITIES
    ───────────────────────────── */
    #capabilities { border-top: 1px solid var(--border); }
    #product-proof { border-top: 1px solid var(--border); }
    .cap-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      margin-top: 48px;
    }
    .cap-item {
      background: var(--surface);
      padding: 28px;
      transition: background .2s;
    }
    .cap-item:hover { background: var(--surface2); }
    .cap-icon {
      width: 36px; height: 36px;
      background: var(--blue-dim);
      border: 1px solid rgba(74,124,255,0.2);
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      font-size: 16px; margin-bottom: 14px;
    }
    .cap-title {
      font-size: 16px; font-weight: 800; letter-spacing: -0.3px;
      color: var(--text); margin-bottom: 6px;
    }
    .cap-desc {
      font-family: var(--font-body);
      font-size: 14px; font-weight: 400;
      color: var(--text2); line-height: 1.65;
    }

    /* ─────────────────────────────
       ABOUT
    ───────────────────────────── */
    #about { border-top: 1px solid var(--border); }
    .about-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 64px;
      margin-top: 48px;
      align-items: start;
    }
    .about-body {
      font-family: var(--font-body);
      font-size: 16px;
      font-weight: 400;
      line-height: 1.85;
      color: var(--text2);
      max-width: 680px;
    }
    .about-points { margin-top: 22px; list-style: none; display: grid; gap: 10px; }
    .about-points li {
      display: flex; gap: 10px;
      padding: 12px 14px;
      background: rgba(255,255,255,0.02);
      border: 1px solid var(--border);
      border-radius: 12px;
      color: var(--text2);
      font-size: 14px;
      line-height: 1.6;
    }
    .about-points li strong { color: var(--text); font-weight: 700; }
    .about-dot {
      width: 8px; height: 8px;
      margin-top: 6px;
      border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 12px rgba(74,124,255,0.55);
      flex-shrink: 0;
    }

    .about-cards {
      display: grid;
      gap: 10px;
    }
    .about-card {
      background: var(--surface);
      border: 1px solid var(--border2);
      border-radius: 14px;
      padding: 18px;
      overflow: hidden;
      position: relative;
    }
    .about-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(74,124,255,0.12), transparent);
      opacity: .9;
      pointer-events: none;
    }
    .about-card h3 {
      position: relative;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text);
      margin-bottom: 10px;
      line-height: 1.3;
    }
    .about-card p {
      position: relative;
      font-family: var(--font-body);
      font-size: 14px;
      font-weight: 400;
      line-height: 1.7;
      color: var(--text2);
    }
    .about-card code {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500;
      color: rgba(0,212,255,0.85);
    }

    /* ─────────────────────────────
       ROADMAP
    ───────────────────────────── */
    #roadmap { border-top: 1px solid var(--border); }
    .roadmap-layout {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 64px;
      margin-top: 48px;
    }
    .roadmap-phases { display: flex; flex-direction: column; gap: 4px; }
    .rm-tab {
      display: flex; align-items: flex-start; gap: 14px;
      padding: 16px;
      border-radius: 12px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: background .2s, border-color .2s;
      text-align: left;
      background: none;
      color: inherit;
    }
    .rm-tab.active {
      background: var(--surface2);
      border-color: var(--border2);
    }
    .rm-tab:hover:not(.active) { background: rgba(255,255,255,0.02); }
    html[data-theme="light"] .rm-tab:hover:not(.active) { background: rgba(11,16,32,0.06); }
    .rm-tab-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      margin-top: 5px; flex-shrink: 0;
      background: var(--text3);
      border: 1px solid transparent;
    }
    .rm-tab.active .rm-tab-dot {
      background: var(--blue);
      box-shadow: 0 0 8px var(--blue);
    }
    .rm-tab-phase {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase;
      color: var(--text3); margin-bottom: 3px;
    }
    .rm-tab.active .rm-tab-phase { color: var(--blue); }
    .rm-tab-title {
      font-size: 14px; font-weight: 700; letter-spacing: -0.2px;
      color: var(--text2); line-height: 1.3;
    }
    .rm-tab.active .rm-tab-title { color: var(--text); }

    .roadmap-content { display: none; }
    .roadmap-content.active {
      display: block;
      animation: rm-fadein .3s ease;
    }
    @keyframes rm-fadein { from{opacity:0;transform:translateX(8px)} to{opacity:1;transform:none} }
    .rm-content-phase {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase;
      color: var(--blue); margin-bottom: 12px;
    }
    .rm-content-title {
      font-size: 28px; font-weight: 800; letter-spacing: -1.2px;
      color: var(--text); margin-bottom: 12px;
    }
    .rm-content-desc {
      font-family: var(--font-body);
      font-size: 16px; font-weight: 400;
      color: var(--text2); line-height: 1.8; margin-bottom: 24px;
      max-width: 560px;
    }
    .rm-items { display: flex; flex-direction: column; gap: 10px; }
    .rm-item {
      display: flex; align-items: center; gap: 10px;
      padding: 12px 16px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      font-size: 14px; color: var(--text2);
    }
    .rm-item-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
    .rm-item-dot.done { background: var(--green); box-shadow: 0 0 6px var(--green); }
    .rm-item-dot.active { background: var(--blue); box-shadow: 0 0 6px var(--blue); animation: live-pulse 2s infinite; }
    .rm-item-dot.todo { background: var(--text3); }

    /* ─────────────────────────────
       CTA SECTION
    ───────────────────────────── */
    #cta {
      border-top: 1px solid var(--border);
      text-align: center;
    }
    #cta .section-head {
      margin: 0 auto 18px;
      text-align: left;
    }
    .cta-box {
      max-width: 720px; margin: 0 auto;
      padding: 64px 48px;
      background: var(--surface);
      border: 1px solid var(--border2);
      border-radius: 20px;
      position: relative; overflow: hidden;
    }
    .cta-box::before {
      content: '';
      position: absolute; top: -80px; left: 50%;
      transform: translateX(-50%);
      width: 420px; height: 220px;
      background: radial-gradient(ellipse, rgba(74,124,255,0.2) 0%, transparent 70%);
      pointer-events: none;
    }
    .cta-title {
      font-size: 36px; font-weight: 800; letter-spacing: -1.5px;
      color: var(--text); margin-bottom: 12px; position: relative;
    }
    .cta-sub {
      font-family: var(--font-body);
      font-size: 16px; font-weight: 400;
      color: var(--text2); line-height: 1.7; margin-bottom: 28px; position: relative;
    }
    .cta-links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; position: relative; }

    /* ─────────────────────────────
       FOOTER
    ───────────────────────────── */
    footer {
      position: relative; z-index: 1;
      border-top: 1px solid var(--border);
      padding: 28px 40px;
    }
    .footer-inner {
      max-width: var(--container);
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }
    .footer-left { display: flex; align-items: center; gap: 20px; }
    .footer-logo { font-size: 14px; font-weight: 800; color: var(--text2); letter-spacing: -0.3px; }
    .footer-logo em { color: var(--blue); font-style: normal; }
    .footer-copy { font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: var(--text3); }
    .footer-links { display: flex; gap: 20px; }
    .footer-links a {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500; letter-spacing: 0.4px; text-transform: uppercase;
      text-decoration: none; color: var(--text3); transition: color .2s;
    }
    .footer-links a:hover { color: var(--blue); }
    .footer-domain { font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: rgba(74,124,255,0.45); }


    /* ─────────────────────────────
       SECTION NAV (right rail)
    ───────────────────────────── */
    .section-nav {
      position: fixed;
      top: 50%;
      right: 16px;
      left: auto;
      transform: translateY(-50%);
      z-index: 180;
      display: flex;
      flex-direction: column;
      gap: 6px;
      width: 152px;
      height: auto;
      background: rgba(var(--surface-rgb), 0.7);
      backdrop-filter: blur(12px) saturate(140%);
      -webkit-backdrop-filter: blur(12px) saturate(140%);
      border: 1px solid var(--border);
      border-radius: 14px;
      box-shadow: 0 14px 50px rgba(0,0,0,0.38);
      max-height: calc(100vh - 120px);
      overflow-y: auto;
      padding: 9px 8px;
    }
    .section-nav-head {
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      color: var(--text3);
      padding: 2px 7px 4px;
      border-bottom: 1px solid var(--border);
    }
    .section-nav-item {
      display: flex;
      align-items: center;
      gap: 8px;
      border-radius: 8px;
      padding: 7px 8px;
      text-decoration: none;
      transition: background .15s;
      flex-direction: row;
    }
    .section-nav-dot {
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--text3);
      opacity: 0.5;
      transition: opacity .2s, background .2s, box-shadow .2s, width .2s, height .2s;
      flex-shrink: 0;
    }
    .section-nav-label {
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.15px;
      line-height: 1.2;
      color: var(--text3);
      transition: color .2s;
      text-transform: uppercase;
      white-space: nowrap;
    }
    .section-nav-item:hover { background: rgba(255,255,255,0.06); }
    .section-nav-item:hover .section-nav-label { color: var(--text2); }
    html[data-theme="light"] .section-nav-item:hover { background: rgba(11,16,32,0.05); }

    .section-nav-item.active .section-nav-dot {
      width: 7px;
      height: 7px;
      background: var(--blue);
      opacity: 1;
      box-shadow: 0 0 8px var(--blue);
    }
    .section-nav-item.active .section-nav-label {
      color: var(--blue);
      font-weight: 700;
    }

    @media (max-width: 1200px) {
      .section-nav {
        width: auto;
        right: 12px;
        top: 50%;
        padding: 8px 6px;
      }
      .section-nav-head { display: none; }
      .section-nav-label { font-size: 12px; }
      .section-nav-item { padding: 7px 6px; gap: 6px; }
    }
    @media (max-width: 980px) {
      .section-nav { display: none; }
    }

    /* ─────────────────────────────
       FLOATING THEME MODE (Feedlyzer-style)
    ───────────────────────────── */
    .fab {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 260;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
    }
    .fab-btn {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      border: 1px solid var(--border2);
      background: rgba(var(--surface-rgb), 0.78);
      backdrop-filter: blur(18px) saturate(160%);
      -webkit-backdrop-filter: blur(18px) saturate(160%);
      color: var(--text);
      cursor: pointer;
      display: grid;
      place-items: center;
      box-shadow: 0 16px 50px rgba(0,0,0,0.55);
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease, background .15s ease;
    }
    .fab-btn:hover {
      transform: translateY(-1px);
      border-color: rgba(74,124,255,0.35);
      box-shadow: 0 18px 60px rgba(0,0,0,0.60), 0 0 24px rgba(74,124,255,0.18);
      background: rgba(var(--surface-rgb), 0.88);
    }
    .fab-menu {
      width: 220px;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border2);
      background: rgba(var(--surface-rgb), 0.88);
      backdrop-filter: blur(18px) saturate(160%);
      -webkit-backdrop-filter: blur(18px) saturate(160%);
      box-shadow: 0 26px 90px rgba(0,0,0,0.65);
      display: none;
    }
    .fab-group {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
      width: 100%;
    }
    .fab-group.open .fab-menu { display: block; }
    .lang-menu { width: 240px; }

    .fab-item {
      width: 100%;
      border: 0;
      background: transparent;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 12px;
      color: var(--text2);
      font-size: 14px;
      letter-spacing: -0.1px;
      cursor: pointer;
      transition: background .15s ease, color .15s ease;
      text-align: left;
    }
    .fab-item + .fab-item { border-top: 1px solid var(--border); }

    .fab-item:hover {
      background: rgba(74,124,255,0.10);
      color: var(--text);
    }
    .fab-item .right {
      font-family: var(--font-mono);
      font-size: 13px; font-weight: 500;
      color: var(--text3);
    }
    .fab-item.active .right { color: var(--blue); }

    @media (max-width: 980px) {
      .fab { right: 14px; bottom: 14px; }
      .fab-menu { width: 200px; }
      .lang-menu { width: 220px; }
    }


    /* ─────────────────────────────
       RESPONSIVE
    ───────────────────────────── */
    @media (max-width: 980px) {
      .top-nav { padding: 0 16px; }
      .nav-links { display: none; }
      .nav-badge { display: none; }
      .nav-menu-btn { display: inline-flex; }

      #hero { padding: 104px 18px 60px; }
      .section { padding: 80px 18px; scroll-margin-top: 76px; }

      .section-head { padding: 18px 18px; border-radius: 16px; }

      .mock-value-grid { grid-template-columns: 1fr 1fr; }
      .mock-board-row { grid-template-columns: 1fr; }

      .products-layout { grid-template-columns: 1fr; }
      .product-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
      .pc-visual { display: none; }

      .cap-grid { grid-template-columns: 1fr 1fr; }

      .about-layout { grid-template-columns: 1fr; gap: 22px; }

      .roadmap-layout { grid-template-columns: 1fr; gap: 26px; }
      .cta-box { padding: 36px 22px; }

      footer { padding: 24px 18px; }
      .footer-inner { flex-direction: column; align-items: flex-start; }
    }

    @media (max-width: 600px) {
      .mock-value-grid { grid-template-columns: 1fr; }
      .mock-product-grid { grid-template-columns: 1fr; }
      .cap-grid { grid-template-columns: 1fr; }
    }

    /* ─────────────────────────────
       REDUCED MOTION
    ───────────────────────────── */
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      .bg-glow-hero { animation: none !important; }
      .logo-strip-inner { animation: none !important; }
      .nav-badge::before { animation: none !important; }
      .rm-item-dot.active { animation: none !important; }
      .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
      .hero-announce, .hero-title, .hero-sub, .hero-actions, .hero-mockup { animation: none !important; }
    }