/* source-serif-4-300 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 300;
  src: url('../fonts/source-serif-4-v14-latin-300.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* source-serif-4-300italic - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 300;
  src: url('../fonts/source-serif-4-v14-latin-300italic.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* source-serif-4-regular - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/source-serif-4-v14-latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* source-serif-4-600 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 600;
  src: url('../fonts/source-serif-4-v14-latin-600.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

/* syne-regular - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Syne';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/syne-v24-latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* syne-500 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Syne';
  font-style: normal;
  font-weight: 500;
  src: url('../fonts/syne-v24-latin-500.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* syne-600 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Syne';
  font-style: normal;
  font-weight: 600;
  src: url('../fonts/syne-v24-latin-600.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* syne-700 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Syne';
  font-style: normal;
  font-weight: 700;
  src: url('../fonts/syne-v24-latin-700.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* syne-800 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Syne';
  font-style: normal;
  font-weight: 800;
  src: url('../fonts/syne-v24-latin-800.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
    :root {
      --bg: #0d0f14;
      --surface: #13151c;
      --surface2: #1a1d27;
      --border: #252836;
      --accent: #2ab5a5;
      --accent2: #5dd4c8;
      --text: #e8eaf0;
      --text-muted: #7a7f96;
      --text-dim: #4a4f66;
      --red: #f04a4a;
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Source Serif 4', Georgia, serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 17px;
      font-weight: 300;
    }

    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; opacity: 0.85; }

    /* ── Header ── */
    .article-header {
      max-width: 780px;
      margin: 0 auto;
      padding: 72px 24px 56px;
    }

    .breadcrumb {
      font-family: 'Syne', sans-serif;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 32px;
    }

    .breadcrumb a {
      color: var(--text-muted);
      text-decoration: none;
    }

    .breadcrumb a:hover { color: var(--accent); }
    .breadcrumb span { margin: 0 8px; }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 28px;
    }

    .tag {
      font-family: 'Syne', sans-serif;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      background: rgba(42, 181, 165, 0.15);
      color: var(--accent);
      border: 1px solid rgba(42, 181, 165, 0.3);
      padding: 4px 12px;
      border-radius: 2px;
    }

    .date {
      font-family: 'Syne', sans-serif;
      font-size: 13px;
      color: var(--text-muted);
    }

    .reading-time {
      font-family: 'Syne', sans-serif;
      font-size: 13px;
      color: var(--text-dim);
    }

    h1 {
      font-family: 'Syne', sans-serif;
      font-size: clamp(32px, 5vw, 52px);
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -0.02em;
      color: var(--text);
      margin-bottom: 24px;
    }

    h1 em {
      font-style: normal;
      color: var(--accent);
    }

    .lead {
      font-size: 19px;
      font-weight: 300;
      color: #b0b4c8;
      line-height: 1.65;
      border-left: 3px solid var(--accent);
      padding-left: 20px;
      margin-bottom: 0;
    }

    /* ── Divider ── */
    .divider {
      max-width: 780px;
      margin: 0 auto;
      padding: 0 24px;
      border: none;
      border-top: 1px solid var(--border);
    }

    /* ── Article Body ── */
    .article-body {
      max-width: 780px;
      margin: 0 auto;
      padding: 56px 24px 80px;
    }

    h2 {
      font-family: 'Syne', sans-serif;
      font-size: clamp(22px, 3vw, 28px);
      font-weight: 700;
      letter-spacing: -0.01em;
      color: var(--text);
      margin: 56px 0 20px;
      padding-top: 8px;
    }

    h2:first-child { margin-top: 0; }

    h3 {
      font-family: 'Syne', sans-serif;
      font-size: 17px;
      font-weight: 700;
      letter-spacing: 0.02em;
      text-transform: uppercase;
      color: var(--accent2);
      margin: 36px 0 12px;
    }

    p { margin-bottom: 20px; color: #c8cad8; }

    p:last-child { margin-bottom: 0; }

    strong {
      font-weight: 600;
      color: var(--text);
    }

    /* ── Factor Cards ── */
    .factor-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
      margin: 32px 0 40px;
    }

    .factor-card {
      background: var(--surface);
      padding: 28px 24px;
      transition: background 0.2s;
    }

    .factor-card:hover { background: var(--surface2); }

    .factor-icon {
      font-size: 22px;
      margin-bottom: 12px;
      display: block;
    }

    .factor-card h3 {
      font-size: 14px;
      margin: 0 0 8px;
      color: var(--accent);
      text-transform: none;
      letter-spacing: 0;
    }

    .factor-card p {
      font-size: 14px;
      line-height: 1.6;
      margin: 0;
      color: var(--text-muted);
    }

    /* ── Price Table ── */
    .price-table {
      width: 100%;
      border-collapse: collapse;
      margin: 32px 0 40px;
      font-size: 15px;
    }

    .price-table thead tr {
      background: var(--surface2);
    }

    .price-table th {
      font-family: 'Syne', sans-serif;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--text-muted);
      padding: 14px 16px;
      text-align: left;
      border-bottom: 1px solid var(--border);
    }

    .price-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border);
      color: #b8bace;
      vertical-align: top;
    }

    .price-table tr:last-child td { border-bottom: none; }

    .price-table tr:hover td { background: var(--surface); }

    .price-range {
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      color: var(--accent);
      white-space: nowrap;
    }

    .price-note {
      font-size: 12px;
      color: var(--text-dim);
      display: block;
      margin-top: 3px;
    }

    /* ── Callout Box ── */
    .callout {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-left: 4px solid var(--accent);
      border-radius: 0 8px 8px 0;
      padding: 24px 28px;
      margin: 32px 0;
    }

    .callout.warning {
      border-left-color: var(--red);
    }

    .callout.tip {
      border-left-color: var(--accent2);
    }

    .callout-label {
      font-family: 'Syne', sans-serif;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .callout.warning .callout-label { color: var(--red); }
    .callout.tip .callout-label { color: var(--accent2); }

    .callout p {
      margin: 0;
      font-size: 15px;
      color: #b0b4c8;
    }

    /* ── Checklist ── */
    .checklist {
      list-style: none;
      margin: 20px 0 32px;
    }

    .checklist li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding: 10px 0;
      border-bottom: 1px solid var(--border);
      color: #b8bace;
      font-size: 15px;
    }

    .checklist li:last-child { border-bottom: none; }

    .checklist li::before {
      content: '→';
      color: var(--accent);
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      flex-shrink: 0;
      margin-top: 1px;
    }

    /* ── CTA Block ── */
    .cta-block {
      background: linear-gradient(135deg, var(--surface2) 0%, #181b28 100%);
      border: 1px solid var(--border);
      border-top: 3px solid var(--accent);
      border-radius: 8px;
      padding: 40px 36px;
      margin: 56px 0 0;
      text-align: center;
    }

    .cta-block h2 {
      font-size: 24px;
      margin: 0 0 12px;
      color: var(--text);
    }

    .cta-block p {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 500px;
      margin: 0 auto 28px;
    }

    .cta-btn {
      display: inline-block;
      background: var(--accent);
      color: #ffffff;
      font-family: 'Syne', sans-serif;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      text-decoration: none;
      padding: 14px 32px;
      border-radius: 3px;
      transition: opacity 0.2s, transform 0.2s;
    }

    .cta-btn:hover {
      opacity: 0.88;
      transform: translateY(-1px);
    }

    /* ── Author Box ── */
    .author-box {
      display: flex;
      gap: 20px;
      align-items: center;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 24px 28px;
      margin: 48px 0 0;
    }

    .author-avatar {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--surface2);
      border: 2px solid var(--border);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: 'Syne', sans-serif;
      font-weight: 800;
      font-size: 18px;
      color: var(--accent);
    }

    .author-info { flex: 1; }

    .author-name {
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      font-size: 15px;
      color: var(--text);
      margin-bottom: 4px;
    }

    .author-role {
      font-size: 13px;
      color: var(--text-muted);
    }

    @media (max-width: 600px) {
      .factor-grid { grid-template-columns: 1fr; }
      .price-table { font-size: 13px; }
      .price-table th, .price-table td { padding: 10px 12px; }
      .cta-block { padding: 28px 20px; }
      .author-box { flex-direction: column; text-align: center; }
    }