:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;color:var(--text);background:var(--page);color-scheme:light;font-synthesis:none;--page:#f4f7f5;--panel:#fff;--text:#22342c;--muted:#65756c;--line:#d8e2db;--accent:#176b4d;--icon:#e6f3eb;--hover:#b2cebe;--shadow:#22382d09}:root[data-theme=dark]{color-scheme:dark;--page:#111719;--panel:#182125;--text:#d9e5e9;--muted:#83979f;--line:#2a363b;--accent:#8bd7b5;--icon:#22382f;--hover:#568473;--shadow:#0002}*{box-sizing:border-box}body{margin:0;min-width:280px}a{color:inherit;text-decoration:none}a:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.portal-shell{max-width:1120px;min-height:100dvh;margin:0 auto;padding:32px 48px;display:flex;flex-direction:column}.portal-header{display:flex;align-items:center;justify-content:space-between;gap:20px}.portal-brand{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:650;letter-spacing:2px}.portal-brand small{display:block;font-size:9px;color:var(--muted);letter-spacing:2.5px;margin-top:5px}.portal-logo{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--accent);color:var(--page);font-size:19px;letter-spacing:0}.theme-control{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}select{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:7px 9px;font:inherit;cursor:pointer}main{padding:76px 0 96px}.portal-intro{margin-bottom:36px}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:3px;margin:0 0 18px}h1{font-size:clamp(30px,4vw,40px);font-weight:550;letter-spacing:-1px;margin:0 0 14px}.portal-intro>p:last-child{color:var(--muted);font-size:14px;line-height:1.7;margin:0}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:22px}.tool-card{display:flex;flex-direction:column;min-height:268px;padding:28px;border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:0 6px 24px var(--shadow);transition:border-color .15s ease,box-shadow .15s ease}.tool-card:hover{border-color:var(--hover);box-shadow:0 8px 30px var(--shadow)}.tool-card-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px}.tool-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;color:var(--accent);background:var(--icon)}.tool-icon svg{width:25px;height:25px}.tool-category{font-size:11px;color:var(--muted)}h2{font-size:18px;font-weight:550;margin:0 0 12px}.tool-card>p{font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 26px}.tool-open{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:12px;font-weight:550;color:var(--accent)}.tool-open>span{font-size:18px}footer{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;letter-spacing:.5px}@media(max-width:600px){.portal-shell{padding:24px 20px}.portal-header{gap:12px}.theme-control>span{display:none}main{padding:52px 0 64px}.portal-intro{margin-bottom:28px}.tool-card{padding:24px;min-height:250px}.portal-brand{font-size:12px}}@media(prefers-reduced-motion:reduce){.tool-card{transition:none}}