/* oi.tax — light variant (#f2f2f2 base) */
:root {
  --oitax-bg:        #f2f2f2;
  --oitax-primary:   #ff3600;
  --oitax-ink:       #383838;
  --oitax-muted:     #7a7a7a;
  --oitax-surface:   #ffffff;
  --oitax-border:    #dcdcdc;
  --oitax-deep:      #1a1a1a;
  --oitax-header-bg: #383838;
  --oitax-radius:    16px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--oitax-bg); color: var(--oitax-ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--oitax-primary); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--oitax-header-bg); border-bottom: 1px solid #4a4a4a; padding: 14px 0; }
.site-header .oitax-container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.oitax-logo { height: 96px; width: auto; display: block; flex-shrink: 0; }
.oitax-header-brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: inherit; }
.oitax-header-text { display: flex; flex-direction: column; gap: 1px; }
.oitax-header-name { font-size: 22px; font-weight: 700; color: #ffffff; letter-spacing: 0.01em; line-height: 1.2; }
.oitax-header-claim { font-size: 13px; font-weight: 600; color: #d9d9d9; letter-spacing: 0.12em; text-transform: uppercase; line-height: 1.2; }
.site-header nav { display: flex; align-items: center; gap: 28px; flex-wrap: nowrap; white-space: nowrap; }
.site-header nav a, .oitax-nav-dropdown-toggle { color: #f2f2f2; text-decoration: none; font-size: 15px; font-weight: 600; letter-spacing: 0.02em; transition: color 180ms ease; background: none; border: none; cursor: pointer; font-family: inherit; padding: 0; }
.site-header nav a:hover, .oitax-nav-dropdown-toggle:hover { color: var(--oitax-primary); }
.oitax-nav-dropdown { position: relative; display: flex; align-items: center; }
.oitax-nav-caret { font-size: 11px; margin-left: 2px; }
.oitax-nav-dropdown-menu { display: none; position: absolute; top: calc(100% + 10px); left: 0; background: var(--oitax-deep); border-radius: 6px; min-width: 290px; padding: 10px 0; box-shadow: 0 8px 28px rgba(0,0,0,0.35); z-index: 200; }
.oitax-nav-dropdown.open .oitax-nav-dropdown-menu { display: block; }
.oitax-nav-dropdown-menu a { display: block; padding: 14px 22px; font-size: 14px; font-weight: 500; color: #f2f2f2; text-decoration: none; white-space: nowrap; border-bottom: 1px solid rgba(255,255,255,0.06); }
.oitax-nav-dropdown-menu a:last-child { border-bottom: none; }
.oitax-nav-dropdown-menu a:hover { background: rgba(255,255,255,0.07); color: var(--oitax-primary); }

/* Container / Section */
.oitax-container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.oitax-section { padding: 120px 0; }
.oitax-hero { padding: 140px 0 100px; border-bottom: 1px solid var(--oitax-border); }

/* Typography */
.oitax-eyebrow { font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--oitax-muted); font-weight:700; }
.oitax-kicker { margin-top:8px; font-size:14px; color:var(--oitax-muted); }
.oitax-h1 { margin: 0 0 18px; font-size:58px; line-height:1.05; font-weight:750; letter-spacing:-0.04em; max-width:18ch; color:var(--oitax-primary); }
.oitax-hero-grid > div:first-child > .oitax-h1:first-child { margin-top: 0; }
.oitax-h2 { margin-bottom:26px; font-size:38px; line-height:1.18; font-weight:750; letter-spacing:-0.02em; color:var(--oitax-ink); }
.oitax-lead { font-size:22px; line-height:1.6; max-width:48ch; color:var(--oitax-ink); margin: 0; }
.oitax-body { font-size:18px; line-height:1.7; color:#4a4a4a; margin: 0 0 14px; }
.oitax-body:last-child { margin-bottom: 0; }
.oitax-micro { font-size:16px; line-height:1.6; color:var(--oitax-ink); font-weight:500; opacity:0.8; margin-top:14px; }
.oitax-strongline { margin-top:60px; font-size:30px; line-height:1.25; font-weight:800; letter-spacing:-0.02em; color:var(--oitax-ink); max-width:28ch; }
.oitax-list { padding-left: 20px; margin: 0; }
.oitax-list li { margin-bottom: 8px; line-height: 1.5; }

/* Cards */
.oitax-card, .oitax-panel, .oitax-split-col, .oitax-fit-box { background: var(--oitax-primary); border: 1px solid rgba(56,56,56,0.08); border-radius: var(--oitax-radius); padding: 30px; transition: all 220ms ease; box-shadow: 0 14px 40px rgba(56,56,56,0.10); }
.oitax-card:hover, .oitax-panel:hover, .oitax-split-col:hover, .oitax-fit-box:hover { background: var(--oitax-surface); transform: translateY(-3px); box-shadow: 0 22px 60px rgba(56,56,56,0.14); }
.oitax-card-title { font-size:26px; line-height:1.18; font-weight:800; letter-spacing:-0.02em; color: var(--oitax-ink); margin:0 0 16px; }
.oitax-card .oitax-body, .oitax-card .oitax-list, .oitax-card li,
.oitax-panel .oitax-body, .oitax-panel .oitax-list, .oitax-panel li,
.oitax-split-col .oitax-body, .oitax-split-col .oitax-list, .oitax-split-col li,
.oitax-fit-box .oitax-body, .oitax-fit-box .oitax-list, .oitax-fit-box li { color: #ffffff; transition: color 220ms ease; }
.oitax-card:hover .oitax-body, .oitax-card:hover .oitax-list, .oitax-card:hover li,
.oitax-panel:hover .oitax-body, .oitax-panel:hover .oitax-list, .oitax-panel:hover li,
.oitax-split-col:hover .oitax-body, .oitax-split-col:hover .oitax-list, .oitax-split-col:hover li,
.oitax-fit-box:hover .oitax-body, .oitax-fit-box:hover .oitax-list, .oitax-fit-box:hover li { color: var(--oitax-ink); }

/* Buttons */
.oitax-btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 30px; border-radius: 999px; font-weight: 750; font-size: 16px; line-height: 1.2; text-decoration: none; transition: all 220ms ease; border: 2px solid transparent; min-height: 52px; cursor: pointer; }
.oitax-btn-primary { background: var(--oitax-primary); color: #ffffff; border-color: var(--oitax-primary); }
.oitax-btn-primary:hover { background: #ffffff; color: var(--oitax-ink); border-color: var(--oitax-primary); }
.oitax-btn-secondary { background: #ffffff; color: var(--oitax-ink); border-color: var(--oitax-primary); }
.oitax-btn-secondary:hover { background: var(--oitax-primary); color: #ffffff; border-color: var(--oitax-primary); }
.oitax-btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }

/* Grids */
.oitax-hero-grid, .oitax-two-col { display:grid; grid-template-columns:1.1fr 0.9fr; gap:50px; align-items: start; }
.oitax-cards-grid, .oitax-split, .oitax-contact-grid, .oitax-fit-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:22px; margin-top:28px; }
.oitax-pillars { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:28px; }
@media (max-width: 980px) {
  .oitax-hero-grid, .oitax-two-col, .oitax-cards-grid, .oitax-split, .oitax-pillars, .oitax-contact-grid, .oitax-fit-grid { grid-template-columns:1fr; }
  .oitax-h1 { font-size: 40px; }
  .oitax-h2 { font-size: 28px; }
  .oitax-section { padding: 80px 0; }
  .oitax-hero { padding: 80px 0 60px; }
  .site-header nav { gap: 16px; }
  .oitax-logo { height: 64px; }
  .oitax-header-name { font-size: 18px; }
}

/* Footer */
.oitax-site-footer { background: var(--oitax-header-bg); border-top: 1px solid #4a4a4a; padding: 64px 0 28px; color: #e6e6e6; }
.oitax-footer-cols { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 56px; padding-bottom: 40px; border-bottom: 1px solid #4a4a4a; }
.oitax-footer-col h4 { font-size: 11px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: #bfbfbf; margin: 0 0 18px; }
.oitax-footer-col p { font-size: 14px; line-height: 1.6; color: #e6e6e6; margin: 0 0 12px; }
.oitax-footer-col p:last-child { margin-bottom: 0; }
.oitax-footer-col a { color: #e6e6e6; text-decoration: none; transition: color 180ms ease; }
.oitax-footer-col a:hover { color: var(--oitax-primary); }
.oitax-footer-offices { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.oitax-footer-office-label { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: #bfbfbf; display: block; margin-bottom: 4px; }
.oitax-footer-nav { display: flex; flex-direction: column; gap: 8px; }
.oitax-footer-nav a { font-size: 14px; line-height: 1.5; }
.oitax-footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-top: 28px; font-size: 13px; color: #9a9a9a; }
.oitax-footer-bottom .oitax-footer-brand { font-size: 13px; font-weight: 700; color: #ffffff; letter-spacing: 0.02em; }
.oitax-footer-bottom-links { display: flex; gap: 20px; flex-wrap: wrap; }
.oitax-footer-bottom-links a { color: #9a9a9a; text-decoration: none; font-size: 13px; }
.oitax-footer-bottom-links a:hover { color: var(--oitax-primary); }
.oitax-footer-disclaimer { font-size: 12px; color: #7a7a7a; line-height: 1.5; max-width: 36ch; margin-top: 10px; }
.oitax-footer-qg-logo { display: inline-block; margin-bottom: 16px; transition: opacity 180ms ease; }
.oitax-footer-qg-logo:hover { opacity: 0.8; }
.oitax-footer-qg-logo img { max-width: 180px; width: 100%; height: auto; display: block; }
.oitax-sep { color: var(--oitax-muted); margin: 0 6px; }

@media (max-width: 980px) {
  .oitax-footer-cols { grid-template-columns: 1fr; gap: 32px; }
  .oitax-footer-offices { grid-template-columns: 1fr; gap: 20px; }
}

/* Scroll-to-top button */
.oitax-scroll-top { position: fixed; bottom: 28px; right: 28px; width: 46px; height: 46px; border-radius: 50%; background: var(--oitax-primary); color: #fff; border: none; font-size: 20px; line-height: 1; cursor: pointer; box-shadow: 0 4px 16px rgba(0,0,0,0.18); opacity: 0; transform: translateY(12px); transition: opacity 220ms ease, transform 220ms ease; pointer-events: none; z-index: 500; }
.oitax-scroll-top--visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.oitax-scroll-top:hover { background: var(--oitax-ink); }

/* Legal pages */
.oitax-legal { padding: 100px 0 120px; }
.oitax-legal h1 { font-size: 48px; line-height:1.1; font-weight:800; letter-spacing:-0.03em; color: var(--oitax-ink); margin: 0 0 18px; }
.oitax-legal h2 { font-size: 22px; line-height:1.2; font-weight:700; color: var(--oitax-ink); margin: 36px 0 10px; }
.oitax-legal p, .oitax-legal li { font-size: 16px; line-height: 1.7; color: #4a4a4a; max-width: 72ch; }
.oitax-legal .oitax-placeholder-note { background: #fff3ef; border-left: 3px solid var(--oitax-primary); padding: 16px 20px; margin: 24px 0 32px; font-size: 14px; color: var(--oitax-ink); max-width: 72ch; }