:root{--ink:#0f172a;--ink2:#334155;--muted:#64748b;--line:#e2e8f0;--bg:#f8fafc;--canvas:#eef2f6;--surface:#fff;--teal:#0d9488;--teal-hover:#0b7a70;--teal-tint:#ccfbf1;--teal-bright:#5eead4;--amber:#f59e0b;--green:#10b981;--red:#ef4444;--dark-bg:#0f172a;--dark-surface:#1e293b;--dark-muted:#94a3b8;--ok-bg:#dcfce7;--ok-fg:#10b981;--warn-bg:#fef3c7;--warn-fg:#f59e0b;--err-bg:#fee2e2;--err-fg:#ef4444;--radius-card:14px;--radius-pill:999px;--radius-rect:10px;--radius-sm:8px;--shadow-card:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);--font-head:"Sora",system-ui,sans-serif;--font-body:"Inter",system-ui,sans-serif;--font-mono:"JetBrains Mono",ui-monospace,monospace;--nav-h:72px;--content-max:1240px;--reading-col:720px;--gutter:24px}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}*{margin:0}body{font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--ink2);background:var(--canvas);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100%}canvas,img,picture,svg,video{display:block;max-width:100%}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:none}ol,ul{padding:0}li{list-style:none}h1,h2,h3,h4,h5,h6{font-family:var(--font-head);color:var(--ink);line-height:1.15;letter-spacing:-.02em;font-weight:700}h1{font-size:clamp(32px,5vw,48px);font-weight:800}h2{font-size:clamp(26px,3.4vw,38px)}h3{font-size:clamp(20px,2.2vw,24px)}h4{font-size:18px}p{color:var(--ink2)}small{font-size:13px}code,kbd,pre{font-family:var(--font-mono)}a{color:var(--teal);text-decoration:none}a:hover{color:var(--teal-hover)}::selection{background:var(--teal-tint);color:var(--ink)}:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}.container{width:100%;max-width:var(--content-max);margin-inline:auto;padding-inline:16px}@media (min-width:640px){.container{padding-inline:24px}}@media (min-width:1024px){.container{padding-inline:40px}}.reading{max-width:var(--reading-col);margin-inline:auto}.section{padding-block:clamp(48px,8vw,96px)}.eyebrow{font-family:var(--font-body);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--teal)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--surface);color:var(--ink);padding:10px 16px;border-radius:var(--radius-rect);box-shadow:var(--shadow-card);transition:top .15s ease}.skip-link:focus{top:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-body);font-weight:600;font-size:15px;line-height:1;white-space:nowrap;text-align:center;border-radius:var(--radius-rect);padding:13px 22px;transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .05s ease;border:1px solid transparent}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--teal);color:#fff;border-radius:var(--radius-pill)}.btn-primary:hover{background:var(--teal-hover);color:#fff}.btn-secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}.btn-secondary:hover{border-color:var(--muted);color:var(--ink)}.btn-ghost{background:transparent;color:var(--teal);padding-inline:6px}.btn-ghost:hover{color:var(--teal-hover)}.btn-on-teal{background:#fff;color:var(--teal);border-radius:var(--radius-pill)}.btn-on-teal:hover{background:#f1fdfb;color:var(--teal-hover)}.btn-on-teal-outline{background:transparent;color:#fff;border-color:hsla(0,0%,100%,.5);border-radius:var(--radius-pill)}.btn-on-teal-outline:hover{border-color:#fff;color:#fff}.btn-block{width:100%}.btn-lg{padding:15px 28px;font-size:16px}.btn-sm{padding:9px 16px;font-size:14px}.card{border-radius:var(--radius-card);box-shadow:var(--shadow-card)}.card,.card-flat{background:var(--surface)}.card-flat{border:1px solid var(--line);border-radius:var(--radius-card)}.pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-body);font-weight:600;font-size:12px;padding:5px 12px;border-radius:var(--radius-pill);background:var(--teal-tint);color:var(--teal-hover)}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}