/* ...existing styles... */
:root { --bg:#fff; --fg:#0b0b0b; --muted:#6b7280; --line:#e5e7eb; --card:#fafafa; --accent:#111; --radius:12px; --shadow:0 1px 2px rgba(0,0,0,.05), 0 10px 20px rgba(0,0,0,.05); }
*{box-sizing:border-box}html,body{padding:0;margin:0}
body{font-family:"Noto Sans",system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial; background:var(--bg); color:var(--fg); line-height:1.6}
.container{width:min(1100px,92%);margin:0 auto}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.logo{font-weight:800;letter-spacing:.2px;color:var(--fg);text-decoration:none;font-size:1.25rem}.logo .dot{color:var(--muted)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer}.nav-toggle .bar{display:block;width:22px;height:2px;background:var(--fg);margin:4px 0;transition:.2s}
.menu{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:10px 8px;color:var(--fg);text-decoration:none;border-radius:8px}
.menu a:hover,.menu a.is-active{background:var(--card)}
@media (max-width: 900px){.nav-toggle{display:block}.menu{position:absolute;right:0;top:64px;background:var(--bg);border:1px solid var(--line);border-right:0;border-top:0;box-shadow:var(--shadow);flex-direction:column;padding:10px;transform-origin:top right;transform:scale(.98);opacity:0;pointer-events:none}
.menu.open{opacity:1;pointer-events:auto;transform:scale(1)}}

.hero{padding:72px 0 32px;border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero-text h1{font-size:clamp(2rem,4vw,3rem);line-height:1.15;margin:0 0 8px}
.hero-text p{color:var(--muted);margin:0 0 16px}
.hero-cta{display:flex;gap:12px;margin:16px 0}
.btn{border:1px solid var(--line);background:#fff;color:#111;padding:10px 14px;border-radius:10px;text-decoration:none;transition:transform .12s ease, background .2s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:#111;color:#fff;border-color:#111}
.hero-highlights{display:flex;gap:16px;list-style:none;padding:0;margin:12px 0 0;color:var(--muted);font-size:.95rem}
.hero-visual{display:flex;justify-content:center}
.hero-svg{width:100%;max-width:320px}
@media (max-width: 900px){.hero-inner{grid-template-columns:1fr}}
.section{padding:60px 0}
.section.alt{background:#fcfcfc}
.lead{font-size:1.1rem;color:var(--muted)}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.three{grid-template-columns:repeat(3,1fr)}
@media (max-width: 900px){.grid.two,.grid.three{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.checklist{padding-left:18px;margin:8px 0}
.flex{display:flex;gap:16px}.between{justify-content:space-between}.center-v{align-items:center}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 10px;cursor:pointer}
.chip.active{background:#111;color:#fff;border-color:#111}
.search{margin:14px 0}
.search input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:1rem}
.project-grid .project{display:flex;flex-direction:column;gap:8px}
.project h3{margin:0}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:.8rem;padding:4px 8px;border:1px solid var(--line);border-radius:999px;color:#333;background:#fff}
.tabs{display:flex;gap:8px;margin-bottom:12px}
.tab{border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:10px;cursor:pointer}
.tab.active{background:#111;color:#fff;border-color:#111}
.code-panel{background:#0f172a;color:#e5e7eb;border-radius:12px;padding:14px;border:1px solid #0b1220;overflow:auto}
.code-panel code{font-family:"Space Mono",ui-monospace,Menlo,Consolas,monospace;font-size:.9rem}
.hidden{display:none}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 18px 18px;opacity:.85;transform:translateY(6px);transition:.3s}
.timeline li::before{content:"";position:absolute;left:-6px;top:4px;width:10px;height:10px;background:#111;border-radius:50%}
.timeline li.show{opacity:1;transform:none}
.accordion details{border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px;margin-bottom:10px}
.accordion summary{cursor:pointer;font-weight:600}
.resource-list{columns:2;gap:18px;padding-left:18px}
@media (max-width:700px){.resource-list{columns:1}}
.site-footer{border-top:1px solid var(--line);padding:24px 0;background:#fff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
.to-top{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);text-decoration:none;color:#111;background:#fff}
/* focus styles */
a,button,input,summary{outline-color:#111;outline-offset:2px}
.modal{position:fixed;inset:0;display:none;z-index:100}
.modal.open{display:block}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.35)}
.modal-dialog{position:relative;margin:8vh auto;max-width:720px;width:92%}
.modal-dialog{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:18px}
.modal-close{position:absolute;top:10px;right:10px;border:1px solid var(--line);background:#fff;border-radius:8px;width:32px;height:32px;cursor:pointer}
.modal h3{margin-top:0}
.features{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.feature{padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:.9rem}
/* ...existing styles... */