*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

    :root {
      --blue: #036eb6;
      --blue-dark: #14488C;
      --white: #ffffff;
      --bg: #f4f3ef;
      --surface: #ffffff;
      --border: rgba(0,0,0,0.08);
      --text: #1a1a1a;
      --muted: #6b6b6b;
      --accent: #1A56DB;

      --bg: #f4f3ef;
      --surface: #ffffff;
      --border: rgba(0,0,0,0.08);
      --border-hover: rgba(0,0,0,0.18);
      --hint: #aaa;
      --radius-md: 8px;
      --radius-lg: 12px;
    }

    /*html { scroll-behavior: auto; }*/
    html {
      scrollbar-width: none;
    }

    html::-webkit-scrollbar {
      display: none;
    }

    body {
      font-family: 'Ubuntu', sans-serif;
      background: var(--bg);
      color: var(--text);
      overflow-x: hidden;
    }

    /* ── Fixed header bar ── */
    .header {
      position: fixed;
      top: 0; left: 0; right: 0;
      height: 64px;
      background: var(--blue);
      display: flex;
      align-items: center;
      padding: 0 15px;
      z-index: 200;
    }

    .logo-block {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }

    .logo-icon {
      width: 100px; height: 34px;
      background: rgba(255,255,255,1);
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }

    .logo-icon img { width: 90px; height: 30px; fill: white; }

    .logo-text {
      font-size: 17px;
      font-weight: 500;
      color: white;
      letter-spacing: 0.01em;
    }

    /* ── Hero overlay: covers entire viewport, fades out on scroll ── */
    .hero-overlay {
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: var(--blue);
      z-index: 100;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      will-change: opacity;
      pointer-events: none;
      /* header bar already at z:200 so it stays visible above overlay */
    }

    .hero-center {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0;
      padding: 0 24px;
      text-align: center;
      pointer-events: auto;
    }

    .hero-title {
      font-family: 'Ubuntu', sans-serif;
      font-size: clamp(36px, 6vw, 72px);
      font-weight: 400;
      color: white;
      line-height: 1.1;
      letter-spacing: -0.02em;
    }

    .hero-date {
      margin-top: 16px;
      font-size: clamp(13px, 1.5vw, 17px);
      font-weight: 300;
      color: rgba(255,255,255,0.65);
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }

    .scroll-hint {
      position: absolute;
      bottom: 44px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      pointer-events: none;
      animation: nudge 2.2s ease-in-out infinite;
    }

    .scroll-hint span {
      font-size: 11px;
      font-weight: 400;
      color: rgba(255,255,255,0.45);
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .scroll-hint svg {
      width: 18px; height: 18px;
      stroke: rgba(255,255,255,0.45);
      fill: none;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    @keyframes nudge {
      0%, 100% { transform: translateY(0); opacity: 0.9; }
      50%       { transform: translateY(7px); opacity: 0.45; }
    }

    /* ── Spacer so content starts below the viewport ── */
    .hero-spacer { height: 100vh; }

    /* ── Main content ── */
    .main-content {
      position: relative;
      z-index: 150;
      background: var(--bg);
    }

    .container {
      max-width: 860px;
      margin: 0 auto;
      padding: 64px 36px 80px;
    }

    .section-label {
      display: inline-block;
      font-size: 10px;
      font-weight: 500;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--blue);
      border-bottom: 1.5px solid var(--blue);
      padding-bottom: 3px;
    }

    .section-heading {
      font-family: 'Ubuntu', sans-serif;
      font-size: clamp(24px, 3.5vw, 40px);
      font-weight: 400;
      color: var(--text);
      margin-bottom: 18px;
      line-height: 1.25;
      letter-spacing: -0.01em;
    }

    .section-body {
      font-size: 16px;
      line-height: 1.75;
      color: var(--muted);
      margin-bottom: 10px;
    }

    /* ── Card grid ── */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-bottom: 56px;
    }

    .card {
      background: var(--surface);
      border-radius: 14px;
      border: 1px solid var(--border);
      padding: 22px 20px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .card:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 28px rgba(26,86,219,0.1);
    }

    .card-icon {
      width: 38px; height: 38px;
      background: #E6F1FB;
      border-radius: 9px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 14px;
    }

    .card-icon svg {
      width: 18px; height: 18px;
      stroke: var(--accent);
      fill: none;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .card-title {
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      margin-bottom: 7px;
    }

    .card-desc {
      font-size: 13px;
      line-height: 1.65;
      color: var(--muted);
    }

    /* ── Divider ── */
    .divider {
      border: none;
      border-top: 1px solid var(--border);
      margin: 48px 0;
    }

    /* ── Update section ── */
    .update-tag {
      display: inline-block;
      font-size: 11px;
      font-weight: 500;
      padding: 4px 10px;
      background: #E6F1FB;
      color: var(--accent);
      border-radius: 20px;
      margin-bottom: 14px;
      letter-spacing: 0.04em;
    }

    /* ── Footer ── */
    .footer {
      background: var(--surface);
      border-top: 1px solid var(--border);
      padding: 28px 36px;
      text-align: center;
    }

    .footer p {
      font-size: 12px;
      color: #aaa;
      letter-spacing: 0.04em;
    }

    /* ── Responsive ── */
    @media (max-width: 600px) {
      .header { padding: 0 20px; }
      .container { padding: 48px 20px 64px; }
      .footer { padding: 24px 20px; }
      .card-grid { grid-template-columns: 1fr; }
    }

    a {
      color: var(--blue);
    }