:root {
  --bg: #f2f1ee;
  --bg-tint-1: #dfe8f5;
  --bg-tint-2: #f3e6dc;
  --glass: rgba(255, 255, 255, 0.62);
  --glass-edge: rgba(255, 255, 255, 0.85);
  --hairline: rgba(20, 22, 28, 0.08);
  --text: #16181d;
  --muted: #6b7079;
  --shadow: 0 1px 2px rgba(20, 22, 28, 0.04), 0 8px 24px rgba(20, 22, 28, 0.06);

  --st-doing: #2f6fe4;
  --st-next: #0f8a6a;
  --st-waiting: #b7791f;
  --st-inbox: #7a5af5;
  --st-someday: #7b8089;
  --overdue: #d6453d;

  --radius: 18px;
  --gutter: 16px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-tint-1: #1b2433;
    --bg-tint-2: #2a1f1b;
    --glass: rgba(34, 37, 44, 0.58);
    --glass-edge: rgba(255, 255, 255, 0.08);
    --hairline: rgba(255, 255, 255, 0.08);
    --text: #eef0f3;
    --muted: #9298a3;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.35);

    --st-doing: #6c9dff;
    --st-next: #3fc7a0;
    --st-waiting: #e3a94c;
    --st-inbox: #a790ff;
    --st-someday: #9aa0aa;
    --overdue: #ff6b61;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }

.backdrop {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(60vmax 50vmax at 0% 0%, var(--bg-tint-1), transparent 70%),
    radial-gradient(60vmax 50vmax at 100% 30%, var(--bg-tint-2), transparent 70%),
    var(--bg);
}

.app, .signin {
  max-width: 640px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 20px) calc(env(safe-area-inset-right) + var(--gutter))
           calc(env(safe-area-inset-bottom) + 40px) calc(env(safe-area-inset-left) + var(--gutter));
}

.top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.eyebrow { margin: 0; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 2px 0 0; font-size: 34px; font-weight: 700; letter-spacing: -0.02em; }
.summary { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.summary .hot { color: var(--overdue); font-weight: 600; }

.icon-btn {
  flex: none; width: 40px; height: 40px; margin-top: 18px;
  display: grid; place-items: center;
  border: 1px solid var(--glass-edge); border-radius: 50%;
  background: var(--glass); color: var(--text);
  backdrop-filter: blur(20px) saturate(160%); -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: var(--shadow); cursor: pointer;
}
.icon-btn.spin svg { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.seg {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  margin: 20px 0 8px; padding: 4px;
  border: 1px solid var(--glass-edge); border-radius: 14px;
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(160%); -webkit-backdrop-filter: blur(20px) saturate(160%);
}
.seg button {
  padding: 8px 0; border: 0; border-radius: 10px;
  background: transparent; color: var(--muted);
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
}
.seg button[aria-selected="true"] { background: var(--bg); color: var(--text); box-shadow: var(--shadow); }

.status-line { min-height: 18px; margin: 4px 2px 0; font-size: 13px; color: var(--muted); }
.status-line.err { color: var(--overdue); }

.group { margin-top: 18px; }
.group-head {
  display: flex; align-items: center; gap: 8px;
  margin: 0 4px 8px; font-size: 13px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; color: var(--muted);
}
.group-head .count { font-weight: 500; }

.card {
  border: 1px solid var(--glass-edge); border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(170%); -webkit-backdrop-filter: blur(24px) saturate(170%);
  box-shadow: var(--shadow);
}
.tasks { list-style: none; margin: 0; padding: 0; overflow: hidden; }
.task { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; }
.task + .task { border-top: 1px solid var(--hairline); }
.dot { flex: none; width: 10px; height: 10px; margin-top: 6px; border-radius: 50%; background: var(--c, var(--muted)); }
.task-body { min-width: 0; flex: 1; }
.title { margin: 0; font-size: 16px; font-weight: 500; overflow-wrap: anywhere; }
.title a { color: inherit; text-decoration: none; }
.meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }

.pill {
  display: inline-flex; align-items: center; height: 22px; padding: 0 9px;
  border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap;
  color: var(--c, var(--muted));
  background: color-mix(in srgb, var(--c, var(--muted)) 14%, transparent);
}
.pill.plain { color: var(--muted); background: color-mix(in srgb, var(--muted) 12%, transparent); font-weight: 500; }
.pill.due.overdue { --c: var(--overdue); }
.pill.due.today { --c: var(--st-next); }

[data-status="Doing"]   { --c: var(--st-doing); }
[data-status="Next"]    { --c: var(--st-next); }
[data-status="Waiting"] { --c: var(--st-waiting); }
[data-status="Inbox"]   { --c: var(--st-inbox); }
[data-status="Someday"] { --c: var(--st-someday); }

.empty { padding: 36px 20px; text-align: center; color: var(--muted); }
.empty strong { display: block; margin-bottom: 4px; color: var(--text); font-size: 17px; }

.signin { display: grid; min-height: 100dvh; place-items: center; }
.signin-card { width: 100%; max-width: 380px; padding: 28px 22px; }
.signin-card p { color: var(--muted); }
.signin-card form { display: grid; gap: 10px; margin-top: 16px; }
.signin-card input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--hairline); border-radius: 12px;
  background: var(--bg); color: var(--text); font: inherit;
}
.primary {
  padding: 12px; border: 0; border-radius: 12px;
  background: var(--text); color: var(--bg); font: inherit; font-weight: 600; cursor: pointer;
}
.error { min-height: 20px; color: var(--overdue); font-size: 14px; }