@import url('tokens.css');

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--op-canvas);color:var(--op-body);
  font-family:var(--op-font-sans);font-size:var(--op-text-body);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:var(--op-navy-700);text-decoration:none}
a:hover{color:var(--op-navy-800)}
h1,h2,h3,h4{margin:0;color:var(--op-ink);letter-spacing:var(--op-tracking-tight);line-height:1.12;text-wrap:pretty}
p{margin:0;text-wrap:pretty}
:focus-visible{outline:2px solid var(--op-cyan-500);outline-offset:2px}

/* ---------- layout ---------- */
.op-container{max-width:var(--op-container);margin:0 auto;padding:0 var(--op-gutter)}
.op-section{padding:var(--op-space-10) 0;border-bottom:var(--op-hairline)}
.op-section--tight{padding:var(--op-space-9) 0}
.op-section--surface{background:var(--op-surface)}
.op-section--canvas{background:var(--op-canvas)}
.op-section--dark{background:var(--op-navy-800);border-bottom:none}
.op-blueprint{background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:var(--op-grid-cell) var(--op-grid-cell)}
.op-split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.op-split--center{align-items:center}
.op-stage{display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:start}
.op-cols-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.op-cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.op-measure{max-width:660px}
.op-measure--wide{max-width:740px}

/* ---------- type ---------- */
.op-eyebrow{font-family:var(--op-font-mono);font-size:var(--op-text-eyebrow);
  letter-spacing:var(--op-tracking-eyebrow);text-transform:uppercase;color:var(--op-slate-500)}
.op-eyebrow--accent{color:var(--op-cyan-500)}
.op-hero-title{font-size:var(--op-text-hero);font-weight:700;line-height:1.06;color:var(--op-on-dark)}
.op-h1{font-size:var(--op-text-h1);font-weight:700;line-height:1.08}
.op-h2{font-size:var(--op-text-h2);font-weight:700;line-height:1.15;letter-spacing:-.025em}
.op-h3{font-size:var(--op-text-h3);font-weight:700;letter-spacing:-.025em}
.op-h4{font-size:var(--op-text-h4);font-weight:700;letter-spacing:-.02em}
.op-lead{font-size:var(--op-text-lead);line-height:1.55;color:var(--op-body-strong)}
.op-lead--dark{color:var(--op-on-dark-body)}
.op-body{font-size:var(--op-text-body);line-height:1.65;color:var(--op-body)}
.op-sm{font-size:var(--op-text-sm);line-height:1.55;color:var(--op-body)}
.op-note{font-size:var(--op-text-xs);color:var(--op-slate-500)}
.op-mono{font-family:var(--op-font-mono);font-size:var(--op-text-mono);color:var(--op-body)}
.op-stack>*+*{margin-top:var(--op-space-4)}

/* ---------- buttons ---------- */
.op-btn{display:inline-block;border:1px solid transparent;border-radius:var(--op-radius);
  font-weight:600;font-size:var(--op-text-sm);padding:14px 24px;cursor:pointer;
  transition:background .15s ease,border-color .15s ease,color .15s ease}
.op-btn--accent{background:var(--op-cyan-500);color:var(--op-cyan-ink)}
.op-btn--accent:hover{background:var(--op-cyan-400);color:var(--op-cyan-ink)}
.op-btn--dark{background:var(--op-navy-800);color:#fff}
.op-btn--dark:hover{background:var(--op-navy-700);color:#fff}
.op-btn--ghost{border-color:var(--op-navy-500);color:#fff;font-weight:500}
.op-btn--ghost:hover{border-color:var(--op-on-dark-mono);color:#fff}
.op-btn--sm{padding:12px 20px;font-size:14.5px}
.op-btn-row{display:flex;flex-wrap:wrap;gap:14px}
.op-textlink{display:inline-block;font-weight:600;font-size:var(--op-text-sm);
  color:var(--op-navy-700);border-bottom:2px solid var(--op-cyan-500);padding-bottom:2px}

/* ---------- panels: hairline grid, the core component ---------- */
.op-panels{display:grid;gap:1px;background:var(--op-line);border:var(--op-hairline)}
.op-panels--2{grid-template-columns:1fr 1fr}
.op-panels--3{grid-template-columns:repeat(3,1fr)}
/* --auto always resolves to a FULL last row; empty cells would expose the container rule */
.op-panels--auto{grid-template-columns:repeat(5,1fr)}
.op-panel{background:var(--op-surface);padding:24px 26px}
.op-panel--canvas{background:var(--op-canvas)}
.op-panel--dark{background:var(--op-navy-800);grid-column:1/-1}
.op-panel--dark .op-sm{color:var(--op-on-dark-strong)}
.op-panel-title{font-weight:600;font-size:16.5px;color:var(--op-ink)}
.op-panel-row{display:flex;justify-content:space-between;gap:20px;align-items:baseline}
.op-panel-row .op-mono{text-align:right}
.op-numeral{font-family:var(--op-font-mono);font-size:22px;color:var(--op-cyan-500)}
.op-tag{font-family:var(--op-font-mono);font-size:10px;letter-spacing:.14em;color:var(--op-slate-400)}
.op-tag--accent{color:var(--op-cyan-500)}

/* ---------- cards ---------- */
.op-card{background:var(--op-surface);border:var(--op-hairline);
  border-top:3px solid var(--op-navy-800);padding:28px 26px 30px}
.op-card--accent{border-top-color:var(--op-cyan-500)}
.op-card--flat{border-top-width:1px;border-top-color:var(--op-line)}
.op-card--invert{background:var(--op-navy-800);border-color:var(--op-navy-800)}
.op-card--invert .op-sm,.op-card--invert p{color:var(--op-on-dark-strong)}
.op-rule-item{border-left:3px solid var(--op-navy-800);padding:4px 0 4px 20px}

/* ---------- lists ---------- */
.op-ticks{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.op-ticks li{display:flex;gap:12px;align-items:baseline;font-size:15.5px;line-height:1.5;color:var(--op-body-strong)}
.op-ticks li::before{content:'';width:5px;height:5px;background:var(--op-cyan-500);flex:none;transform:translateY(-2px)}
.op-steps{display:grid;gap:14px;margin:0;padding:0;list-style:none}
.op-steps li{display:flex;gap:13px;align-items:baseline;font-size:16px;line-height:1.55;color:var(--op-body-strong)}
.op-steps li>span{font-family:var(--op-font-mono);font-size:12px;color:var(--op-cyan-500);flex:none}

/* ---------- terminal / evidence ---------- */
.op-term{background:var(--op-navy-900);border:1px solid var(--op-navy-700);
  border-radius:var(--op-radius-lg);overflow:hidden}
.op-term__bar{display:flex;align-items:center;gap:8px;padding:11px 14px;
  border-bottom:1px solid var(--op-navy-700);background:var(--op-navy-800)}
.op-term__dot{width:8px;height:8px;border-radius:50%}
.op-term__label{margin-left:6px;font-family:var(--op-font-mono);font-size:11px;color:var(--op-on-dark-mono)}
.op-term__body{padding:20px 22px;font-family:var(--op-font-mono);font-size:12px;line-height:1.95;color:#C3CCE2}
.op-term__body--boxed{padding:24px 26px;line-height:2;font-size:12.5px}
.op-term .op-pass{color:var(--op-cyan-500)}
.op-term .op-fail{color:var(--op-fail)}
.op-term .op-dim{color:var(--op-on-dark-mono)}
.op-term__hr{margin-top:8px;padding-top:8px;border-top:1px solid var(--op-navy-700)}
.op-term--flat{background:var(--op-navy-800);border:none;padding:24px 26px}

/* ---------- logo ---------- */
.op-logo{display:flex;align-items:center;gap:11px}
.op-logo__mark{width:30px;height:30px;background:var(--op-navy-800);flex:none;
  display:flex;flex-direction:column;justify-content:center;gap:3px;padding:0 6px}
.op-logo__mark i{display:block;height:2.5px}
.op-logo__mark i:nth-child(1){width:58%;background:var(--op-fail)}
.op-logo__mark i:nth-child(2){width:100%;background:var(--op-cyan-500)}
.op-logo__mark i:nth-child(3){width:76%;background:var(--op-slate-500)}
.op-logo__word{font-weight:700;font-size:19px;letter-spacing:-.02em;color:var(--op-ink)}
.op-logo--invert .op-logo__mark{background:var(--op-navy-700);width:26px;height:26px;padding:0 5px;gap:2.5px}
.op-logo--invert .op-logo__mark i{height:2px}
.op-logo--invert .op-logo__word{color:#fff;font-size:16px}

/* ---------- header ---------- */
.op-header{position:sticky;top:0;z-index:20;background:rgba(250,250,252,.95);
  backdrop-filter:blur(8px);border-bottom:var(--op-hairline)}
.op-header__inner{height:70px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.op-nav{display:flex;align-items:center;gap:28px}
.op-nav a{font-size:14px;font-weight:500;color:var(--op-body)}
.op-nav a:hover{color:var(--op-ink)}
.op-nav a[aria-current="page"]{color:var(--op-ink);border-bottom:2px solid var(--op-cyan-500);padding-bottom:3px}
.op-nav .op-btn{padding:10px 18px;font-size:13.5px}

/* ---------- footer ---------- */
.op-footer{background:var(--op-navy-900)}
.op-footer__inner{padding-block:var(--op-space-8) 40px}
.op-footer__top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
.op-footer__cols{display:flex;gap:56px;flex-wrap:wrap}
.op-footer__head{font-family:var(--op-font-mono);font-size:9.5px;letter-spacing:.16em;color:#4C5F8F}
.op-footer__list{display:grid;gap:9px;margin-top:12px}
.op-footer__list a{font-size:14px;color:var(--op-on-dark-body)}
.op-footer__list a:hover{color:#fff}
.op-footer__meta{font-family:var(--op-font-mono);font-size:11.5px;line-height:1.9;color:var(--op-on-dark-mono);margin-top:14px}
.op-footer__legal{margin-top:36px;padding-top:20px;border-top:1px solid var(--op-navy-700);
  display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;
  font-family:var(--op-font-mono);font-size:11px;color:var(--op-slate-500)}
.op-lockup{font-family:var(--op-font-mono);font-size:12px;letter-spacing:.04em;color:var(--op-on-dark-mono);
  margin-top:44px;padding-top:26px;border-top:1px solid var(--op-on-dark-line)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .op-panels--auto{grid-template-columns:1fr 1fr}
  .op-panels--auto>*:last-child{grid-column:1/-1}
}
@media (max-width:900px){
  :root{--op-text-hero:40px;--op-text-h1:34px;--op-text-h2:28px;--op-text-h3:22px;
    --op-text-lead:17px;--op-gutter:22px;--op-space-10:56px;--op-space-9:48px;--op-space-11:64px}
  .op-split,.op-stage,.op-cols-2,.op-cols-3,.op-panels--2,.op-panels--3{grid-template-columns:1fr;gap:26px}
  .op-header__inner{height:auto;padding:14px 0;flex-wrap:wrap;gap:14px}
  .op-nav{gap:18px;flex-wrap:wrap}
  .op-term__body{font-size:11px;overflow-x:auto}
}
@media (max-width:560px){
  .op-panels--auto{grid-template-columns:1fr}
}
@media (max-width:520px){
  .op-nav .op-btn{width:100%;text-align:center}
}
@media print{
  .op-header,.op-btn-row,.op-nav{display:none}
  body{background:#fff}
  .op-section{border:none;padding:24px 0}
}