:root{--bg:#f6f8fb;--surface:#fff;--soft:#edf4fb;--text:#172033;--muted:#66748a;--line:#dbe5f0;--navy:#12345b;--navy2:#0d2747;--green:#16865f;--red:#b4233c;--amber:#9b6a00;--shadow:0 18px 45px rgba(18,52,91,.1);color-scheme:light}body.dark{--bg:#09111f;--surface:#111c2d;--soft:#17263b;--text:#edf4ff;--muted:#aab7c8;--line:#293a52;--navy:#8fc2ff;--navy2:#dbeeff;--green:#66d5a8;--red:#ff8fa1;--amber:#ffd36e;--shadow:0 18px 45px rgba(0,0,0,.28);color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 18% 0%,rgba(255,248,232,.85),transparent 28rem),radial-gradient(circle at 90% 10%,rgba(217,235,255,.85),transparent 28rem),var(--bg);color:var(--text);font-family:Inter,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.5}button,input,select,textarea{font:inherit}a{color:inherit}.app-header,.app-shell,.app-footer{width:min(1280px,calc(100% - 28px));margin-inline:auto}.app-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}.back-link{color:var(--muted);font-weight:850;text-decoration:none}.button,.theme-toggle{border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);min-height:42px;padding:9px 13px;font-weight:850;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;cursor:pointer}.button.primary{background:var(--navy);border-color:var(--navy);color:#fff}.button.danger{color:var(--red)}.hero,.workspace,.summary-card,.panel,.summary-grid article,.insight{background:color-mix(in srgb,var(--surface) 94%,transparent);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.hero{display:grid;grid-template-columns:1fr 360px;gap:16px;padding:24px;margin-bottom:14px}.eyebrow{margin:0 0 8px;color:var(--green);font-weight:900;letter-spacing:.02em}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(34px,6vw,62px);line-height:1;color:var(--navy2);margin-bottom:10px}.lead,.notice,.app-footer,.summary-card small{color:var(--muted)}.summary-card{padding:18px;align-self:stretch}.summary-card span,.summary-grid span{display:block;color:var(--muted);font-weight:850;font-size:13px}.summary-card strong{display:block;font-size:26px;color:var(--navy2);margin:10px 0}.workspace{display:grid;grid-template-columns:230px 1fr;gap:14px;padding:14px}.tabs{display:grid;align-content:start;gap:8px}.tab{border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--muted);padding:12px;text-align:left;font-weight:900;cursor:pointer}.tab.active{background:var(--navy);border-color:var(--navy);color:#fff}.panel{display:none;padding:18px;box-shadow:none}.panel.active{display:block}.panel-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:14px}.form-grid,.item-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.wide{grid-column:1/-1}label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:850}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);min-height:42px;padding:9px 11px}.actions,.filters{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}.preset-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}.preset{border:1px solid var(--line);border-radius:15px;background:var(--surface);padding:12px;text-align:left;cursor:pointer}.preset strong{display:block;color:var(--navy2)}.preset small{color:var(--muted)}.chip{border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--muted);padding:9px 12px;font-weight:900;cursor:pointer}.chip.active{background:var(--navy);border-color:var(--navy);color:#fff}.item-list{display:grid;gap:10px;margin-top:14px}.item{display:grid;grid-template-columns:1fr auto;gap:10px;border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:13px}.item.done{opacity:.72}.item h3{margin:0;color:var(--navy2)}.meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px}.meta span{border-radius:999px;background:var(--soft);color:var(--muted);font-size:12px;font-weight:850;padding:5px 8px}.meta .urgent{color:var(--amber)}.item-actions{display:grid;gap:8px;align-content:start}.item-actions button{min-width:92px}.summary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;background:transparent;border:0;box-shadow:none}.summary-grid article{padding:14px;box-shadow:none}.summary-grid strong{display:block;font-size:30px;color:var(--navy2);margin-top:6px}.insight{padding:16px;margin-top:12px;box-shadow:none;color:var(--muted)}.toast{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);background:var(--navy2);color:#fff;border-radius:999px;padding:12px 16px;box-shadow:var(--shadow);z-index:20}.app-footer{display:flex;justify-content:space-between;gap:12px;padding:24px 0 34px;font-size:14px}@media(max-width:920px){.hero,.workspace{grid-template-columns:1fr}.tabs{display:flex;overflow-x:auto}.tab{white-space:nowrap}.preset-grid,.summary-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.app-header,.actions,.item-form,.form-grid,.panel-head,.item,.item-actions,.summary-grid,.app-footer{display:grid;grid-template-columns:1fr}.button,.theme-toggle{width:100%}.preset-grid{grid-template-columns:1fr}.hero,.workspace,.panel{border-radius:16px;padding:14px}h1{font-size:36px}}