:root {
    --bg: #f7f6f2;
    --surface: #ffffff;
    --border: #e8e6df;
    --border-strong: #d0cdc4;
    --text: #1a1916;
    --text-2: #6b6860;
    --text-3: #a8a59f;
    --accent: #1a1916;
    --green: #1a6b45;
    --green-bg: #e8f5ee;
    --red: #9b2c2c;
    --red-bg: #fef2f2;
    --amber: #92400e;
    --amber-bg: #fffbeb;
    --blue: #1e40af;
    --blue-bg: #eff6ff;
    --radius: 10px;
    --radius-sm: 6px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6; }

  /* NAV */
  nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(247,246,242,0.92); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 0; padding: 0 32px; height: 56px;
  }
  .nav-logo { font-size: 15px; font-weight: 500; letter-spacing: -0.02em; margin-right: 32px; cursor:pointer; }
  .nav-logo span { color: var(--text-2); font-weight: 300; }
  .nav-links { display: flex; gap: 2px; }
  .nav-link { padding: 6px 14px; border-radius: var(--radius-sm); font-size: 13px; color: var(--text-2); cursor: pointer; transition: all .15s; border: none; background: none; }
  .nav-link:hover { color: var(--text); background: var(--border); }
  .nav-link.active { color: var(--text); background: var(--surface); border: 1px solid var(--border); }
  .nav-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
  .compare-counter { font-size: 12px; color: var(--text-2); background: var(--surface); border: 1px solid var(--border); padding: 4px 12px; border-radius: 20px; display: none; }
  .compare-counter.visible { display: block; }
  .btn-compare-go { font-size: 12px; font-weight: 500; background: var(--text); color: #fff; border: none; padding: 6px 14px; border-radius: 20px; cursor: pointer; display: none; transition: opacity .15s; }
  .btn-compare-go:hover { opacity: 0.8; }
  .btn-compare-go.visible { display: block; }

  /* PAGES */
  .page { display: none; }
  .page.active { display: block; }

  /* LAYOUT */
  .container { max-width: 1100px; margin: 0 auto; padding: 0 32px; }

  /* HERO */
  .hero { padding: 64px 0 40px; }
  .hero h1 { font-size: 40px; font-weight: 300; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 14px; }
  .hero h1 strong { font-weight: 500; }
  .hero p { font-size: 16px; color: var(--text-2); max-width: 520px; line-height: 1.7; }

  /* FILTERS */
  .filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; align-items: center; padding: 16px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .filter-label { font-size: 12px; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; margin-right: 4px; }
  .filter-btn { font-size: 12px; padding: 5px 12px; border-radius: 20px; border: 1px solid var(--border); background: var(--surface); color: var(--text-2); cursor: pointer; transition: all .15s; }
  .filter-btn:hover { border-color: var(--border-strong); color: var(--text); }
  .filter-btn.active { background: var(--text); color: #fff; border-color: var(--text); }
  .filter-sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }
  .search-wrap { margin-left: auto; position: relative; }
  .search-input { font-family: inherit; font-size: 13px; padding: 6px 12px 6px 32px; border: 1px solid var(--border); border-radius: 20px; background: var(--surface); color: var(--text); outline: none; width: 200px; transition: border-color .15s; }
  .search-input:focus { border-color: var(--border-strong); }
  .search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-3); font-size: 13px; pointer-events: none; }

  /* SORT */
  .sort-row { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
  .sort-label { font-size: 12px; color: var(--text-3); }
  .sort-btn { font-size: 12px; padding: 4px 10px; border-radius: var(--radius-sm); border: 1px solid transparent; background: none; color: var(--text-2); cursor: pointer; transition: all .15s; }
  .sort-btn.active { border-color: var(--border); background: var(--surface); color: var(--text); }
  .results-count { margin-left: auto; font-size: 12px; color: var(--text-3); }

  /* GRID */
  .platform-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; margin-bottom: 48px; }
  .platform-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 20px; cursor: pointer; transition: all .18s; position: relative;
  }
  .platform-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }
  .platform-card.compare-selected { border-color: var(--text); }
  .card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 12px; }
  .card-icon { width: 40px; height: 40px; border-radius: 8px; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-family: 'DM Mono', monospace; font-size: 12px; color: var(--text-3); font-weight: 500; flex-shrink: 0; }
  .card-logo-wrap { position: relative; width: 36px; height: 36px; flex-shrink: 0; }
  .card-logo { width: 36px; height: 36px; border-radius: 8px; object-fit: contain; background: var(--surface); border: 1px solid var(--border); padding: 3px; display: block; }
  .card-icon-fb { width: 36px; height: 36px; border-radius: 8px; background: var(--bg); border: 1px solid var(--border); display: none; align-items: center; justify-content: center; font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text-3); font-weight: 500; }
  .card-name-row { flex: 1; min-width: 0; }
  .card-name { font-size: 14px; font-weight: 500; letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .card-actions { display: flex; gap: 6px; }
  .compare-toggle { width: 20px; height: 20px; border-radius: 4px; border: 1px solid var(--border); background: var(--bg); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 10px; transition: all .15s; }
  .compare-toggle:hover { border-color: var(--border-strong); }
  .compare-toggle.active { background: var(--text); border-color: var(--text); color: #fff; }
  .card-name { font-size: 15px; font-weight: 500; letter-spacing: -0.01em; margin-bottom: 3px; }
  .card-price { font-size: 12px; color: var(--text-3); margin-bottom: 12px; }
  .card-price strong { color: var(--text-2); }
  .card-rating { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-2); margin-bottom: 10px; }
  .rating-stars { color: #f59e0b; font-size: 11px; letter-spacing: -1px; }
  .card-pros { font-size: 12px; color: var(--green); background: var(--green-bg); border-radius: var(--radius-sm); padding: 8px 10px; margin-bottom: 6px; line-height: 1.5; }
  .card-cons { font-size: 12px; color: var(--red); background: var(--red-bg); border-radius: var(--radius-sm); padding: 8px 10px; line-height: 1.5; }
  .card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
  .card-tags { display: flex; gap: 4px; flex-wrap: wrap; }
  .tag { font-size: 11px; padding: 2px 8px; border-radius: 20px; background: var(--bg); border: 1px solid var(--border); color: var(--text-2); }
  .hdm-link { font-size: 11px; color: var(--text-3); text-decoration: none; white-space: nowrap; }
  .hdm-link:hover { color: var(--text-2); }

  /* PLATFORM DETAIL PAGE */
  .back-btn { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-2); cursor: pointer; margin-bottom: 32px; padding: 6px 0; border: none; background: none; font-family: inherit; transition: color .15s; }
  .back-btn:hover { color: var(--text); }
  .detail-header { display: flex; align-items: flex-start; gap: 24px; margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--border); }
  .detail-icon { width: 64px; height: 64px; border-radius: 14px; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-family: 'DM Mono', monospace; font-size: 18px; color: var(--text-3); flex-shrink: 0; }
  .detail-title { font-size: 28px; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 6px; }
  .detail-price { font-size: 13px; color: var(--text-2); margin-bottom: 10px; }
  .detail-rating { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 6px; margin-bottom: 14px; }
  .detail-actions { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }
  .btn-primary { font-family: inherit; font-size: 13px; font-weight: 500; padding: 8px 18px; border-radius: 20px; background: var(--text); color: #fff; border: none; cursor: pointer; text-decoration: none; display: inline-block; transition: opacity .15s; }
  .btn-primary:hover { opacity: 0.8; }
  .btn-secondary { font-family: inherit; font-size: 13px; padding: 8px 18px; border-radius: 20px; background: var(--surface); color: var(--text); border: 1px solid var(--border); cursor: pointer; transition: all .15s; }
  .btn-secondary:hover { border-color: var(--border-strong); }
  .detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
  .detail-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
  .detail-box h3 { font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin-bottom: 12px; }
  .meta-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-bottom: 20px; }
  .meta-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; }
  .meta-label { display: block; font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin-bottom: 3px; }
  .meta-val { display: block; font-size: 13px; color: var(--text); line-height: 1.4; }
  .pros-list, .cons-list { list-style: none; display: flex; flex-direction: column; gap: 7px; }
  .pros-list li, .cons-list li { font-size: 13px; line-height: 1.5; display: flex; gap: 8px; }
  .pros-list li::before { content: '+'; color: var(--green); font-weight: 500; flex-shrink: 0; }
  .cons-list li::before { content: '−'; color: var(--red); font-weight: 500; flex-shrink: 0; }

  /* COMPARISON PAGE */
  .comparison-wrapper { padding: 40px 0 48px; }
  .comparison-header { margin-bottom: 32px; }
  .comparison-header h1 { font-size: 28px; font-weight: 400; letter-spacing: -0.02em; margin-bottom: 8px; }
  .cmp-pick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-bottom: 20px; }
  .cmp-pick-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; cursor: pointer; text-align: center; transition: all .15s; }
  .cmp-pick-card:hover { border-color: var(--border-strong); }
  .cmp-pick-card.selected { border-color: var(--text); background: var(--text); color: #fff; }
  .cmp-pick-card.selected .cmp-pick-icon { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.6); border-color: rgba(255,255,255,0.1); }
  .cmp-pick-card.selected .cmp-pick-name { color: #fff; }
  .cmp-pick-icon { width: 32px; height: 32px; border-radius: 6px; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-family: 'DM Mono', monospace; font-size: 9px; color: var(--text-3); }
  .cmp-logo-wrap { width: 32px; height: 32px; margin: 0 auto 6px; position: relative; }
  .cmp-logo { width: 32px; height: 32px; border-radius: 6px; object-fit: contain; background: var(--surface); border: 1px solid var(--border); padding: 3px; display: block; }
  .cmp-pick-name { font-size: 12px; font-weight: 500; }
  .cmp-btn-row { display: flex; gap: 8px; margin-bottom: 32px; align-items: center; }
  .cmp-hint { font-size: 12px; color: var(--text-3); }
  .cmp-table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 16px; }
  .cmp-table { width: 100%; border-collapse: collapse; font-size: 13px; }
  .cmp-table th { padding: 14px 18px; text-align: left; font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); border-bottom: 1px solid var(--border); background: var(--bg); }
  .cmp-table th:not(:first-child) { text-align: center; }
  .cmp-table td { padding: 12px 18px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: top; }
  .cmp-table td:not(:first-child) { text-align: center; }
  .cmp-table tr:last-child td { border-bottom: none; }
  .cmp-table tr:hover td { background: var(--bg); }
  .cmp-table td:first-child { color: var(--text-2); font-size: 12px; }
  .val-good { color: var(--green); font-weight: 500; }
  .val-bad { color: var(--red); }
  .val-mid { color: var(--amber); }
  .winner-pill { font-size: 10px; padding: 2px 7px; border-radius: 20px; background: var(--green-bg); color: var(--green); font-weight: 500; display: inline-block; margin-left: 6px; }

  /* PICKER WIZARD */
  .wizard-wrap { padding: 48px 0; }
  .wizard-step { display: none; }
  .wizard-step.active { display: block; }
  .wizard-q { font-size: 24px; font-weight: 400; letter-spacing: -0.02em; margin-bottom: 8px; }
  .wizard-sub { font-size: 14px; color: var(--text-2); margin-bottom: 28px; }
  .wizard-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
  .wizard-opt { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; cursor: pointer; transition: all .15s; }
  .wizard-opt:hover { border-color: var(--border-strong); }
  .wizard-opt.selected { border-color: var(--text); background: var(--text); color: #fff; }
  .wizard-opt h4 { font-size: 14px; font-weight: 500; margin-bottom: 3px; }
  .wizard-opt p { font-size: 12px; color: var(--text-2); line-height: 1.4; }
  .wizard-opt.selected p { color: rgba(255,255,255,0.6); }
  .wizard-nav { display: flex; gap: 10px; margin-top: 28px; align-items: center; }
  .wizard-step-indicator { font-size: 12px; color: var(--text-3); margin-left: auto; }
  .results-header { font-size: 20px; font-weight: 400; letter-spacing: -0.02em; margin-bottom: 6px; }
  .results-sub { font-size: 13px; color: var(--text-2); margin-bottom: 24px; }
  .recommended-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
  .rec-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
  .rec-rank { font-size: 11px; color: var(--text-3); font-family: 'DM Mono', monospace; margin-bottom: 8px; }
  .rec-rank.top { color: var(--green); }
  .rec-name { font-size: 16px; font-weight: 500; margin-bottom: 4px; }
  .rec-reason { font-size: 13px; color: var(--text-2); margin-bottom: 12px; line-height: 1.5; }

  /* EMPTY */
  .empty { text-align: center; padding: 64px 0; color: var(--text-3); font-size: 14px; }
  .platform-logo { width: 40px; height: 40px; border-radius: 8px; background: var(--bg); border: 1px solid var(--border); object-fit: contain; padding: 4px; display: block; flex-shrink: 0; }
  .platform-logo-lg { width: 64px; height: 64px; border-radius: 14px; background: var(--bg); border: 1px solid var(--border); object-fit: contain; padding: 6px; display: block; flex-shrink: 0; }
  .ai-loading { display: flex; align-items: center; gap: 8px; color: var(--text-3); font-size: 13px; padding: 20px 0; }
  .ai-spinner { width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--text-3); border-radius: 50%; animation: spin .8s linear infinite; flex-shrink: 0; }
  @keyframes spin { to { transform: rotate(360deg); } }
  .review-card { background: var(--bg); border-radius: var(--radius); padding: 16px; margin-bottom: 10px; }
  .review-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
  .reviewer-name { font-size: 13px; font-weight: 500; }
  .review-rating { color: #f59e0b; font-size: 12px; }
  .review-role { font-size: 11px; color: var(--text-3); margin-bottom: 8px; }
  .review-text { font-size: 13px; color: var(--text-2); line-height: 1.6; font-style: italic; }
  .section-head { font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin-bottom: 12px; margin-top: 24px; }
  .desc-content { font-size: 14px; color: var(--text-2); line-height: 1.8; }
  .desc-content p { margin-bottom: 14px; }
  .desc-content h4 { font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 8px; margin-top: 16px; }

  /* RESPONSIVE */
  @media (max-width: 700px) {
    .container { padding: 0 16px; }
    nav { padding: 0 16px; }
    .hero h1 { font-size: 28px; }
    .platform-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .detail-header { flex-direction: column; }
    .cmp-pick-grid { grid-template-columns: repeat(3, 1fr); }
  }

  .vs-hero{padding:32px 0 24px;border-bottom:1px solid var(--border);margin-bottom:32px}
  .vs-title{font-size:28px;font-weight:400;letter-spacing:-0.02em;margin-bottom:8px}
  .vs-pills{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
  .vs-pill{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:8px 14px}
  .vs-pill-logo{width:22px;height:22px;border-radius:5px;object-fit:contain;background:var(--bg);border:0.5px solid var(--border);padding:2px;display:block}
  .vs-pill-name{font-size:13px;font-weight:500;color:var(--text)}
  .vs-sep{font-size:14px;color:var(--text-3)}
  .cmp-h-cell{display:flex;flex-direction:column;align-items:center;gap:5px;padding:4px 0}
  .cmp-h-logo{width:32px;height:32px;border-radius:7px;object-fit:contain;background:var(--bg);border:0.5px solid var(--border);padding:3px;display:block}
  .cmp-h-name{font-size:13px;font-weight:500;text-align:center}
  .sec{font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);margin:28px 0 12px;display:block}
  .bc{font-size:12px;color:var(--text-3);margin-bottom:16px}
  .bc a{color:var(--text-3);text-decoration:none}
  .yes{color:var(--green);font-weight:500}
  .no{color:var(--text-3)}
  .desc-snip{font-size:13px;color:var(--text-2);line-height:1.65}
  .no-sel{text-align:center;padding:60px 0}
  .no-sel p{margin-bottom:16px;font-size:14px;color:var(--text-2)}
  .channel-chip{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--bg);border:1px solid var(--border);color:var(--text-2);margin:2px 2px 0 0}
  .chip-native{background:var(--green-bg);color:var(--green);border-color:transparent}
  .chip-int{background:var(--bg);color:var(--text-3);border:1px dashed var(--border)}
  .chip-no{text-decoration:none;opacity:.45;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--bg);border:1px solid var(--border);color:var(--text-3);margin:2px 2px 0 0;display:inline-block}.chip-legend-item{display:inline-flex;align-items:center;font-size:11px;margin-right:16px;gap:4px;white-space:nowrap}.chip-legend-item.chip-native{color:var(--green)}.chip-legend-item.chip-int{color:var(--text-2)}.chip-legend-item.chip-na{color:var(--text-3)}.legend-row td{background:var(--bg);padding:8px 18px;border-bottom:2px solid var(--border-strong)}.chip-legend{display:inline-flex;align-items:center;gap:4px;font-size:11px;color:var(--text-3);margin-right:12px;white-space:nowrap}.chip-legend.chip-native{color:var(--green)}.chip-legend.chip-int{color:var(--text-3)}.chip-legend.chip-na{color:var(--border-strong)}.legend-row td{padding:6px 18px;background:var(--bg);border-bottom:1px solid var(--border)}
  .thead-sub td{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);background:var(--bg);padding:8px 18px;border-bottom:1px solid var(--border)}
  .api-top{color:var(--green);font-weight:500}
  @media(max-width:700px){.container{padding:0 16px} nav{padding:0 16px} .vs-title{font-size:22px}}

.seo-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin:18px 0 28px}.seo-panel h2{font-size:20px;font-weight:500;letter-spacing:-.02em;margin-bottom:10px}.seo-panel h3{font-size:15px;font-weight:500;margin:18px 0 8px}.seo-panel p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0 0 12px}.seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.seo-card{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:14px}.seo-card ul{margin:8px 0 0 18px;color:var(--text-2);font-size:13px;line-height:1.65}.faq-item{border-top:1px solid var(--border);padding:14px 0}.faq-item:first-child{border-top:0}.faq-q{font-size:14px;font-weight:500;margin-bottom:5px}.related-links{display:flex;gap:8px;flex-wrap:wrap}.related-links a{font-size:12px;padding:5px 12px;border-radius:20px;background:var(--bg);border:1px solid var(--border);color:var(--text-2);text-decoration:none}.migration-cta{background:#1a1916;color:#fff;border-radius:12px;padding:22px;margin:22px 0}.migration-cta h2{font-size:20px;font-weight:500;margin-bottom:8px;color:#fff}.migration-cta p{color:#e8e6df;margin-bottom:14px}.migration-cta a{display:inline-block;background:#fff;color:#1a1916;text-decoration:none;border-radius:20px;padding:8px 16px;font-size:13px;font-weight:500}
.platform-options{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:10px;
  margin:18px 0 40px;
}
.platform-option{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 14px;
  border:0.5px solid var(--border);
  border-radius:14px;
  background:var(--card);
  color:var(--text);
  text-decoration:none;
  font-size:14px;
  transition:transform .15s ease, border-color .15s ease, background .15s ease;
}
.platform-option:hover{
  transform:translateY(-1px);
  border-color:var(--blue);
  background:rgba(37,99,235,.06);
}
.platform-option img{
  width:24px;
  height:24px;
  border-radius:6px;
  object-fit:contain;
  flex-shrink:0;
}