:root {
  --ink: #17211b;
  --muted: #67736b;
  --line: #dfe7e1;
  --paper: #f5f7f4;
  --white: #fff;
  --green: #166534;
  --green-dark: #0e4524;
  --green-soft: #e8f4ec;
  --red: #b42318;
  --amber: #b76e00;
  --shadow: 0 18px 50px rgba(25, 47, 34, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% -10%, #dbeadd 0, transparent 30rem),
    var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
button, input { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--muted); line-height: 1.65; }
.eyebrow { margin: 0 0 8px; color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.error { min-height: 20px; color: var(--red); font-size: 13px; }

.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: min(440px, 100%);
  padding: 44px;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
}
.brand-mark {
  display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 24px;
  color: white; background: var(--green); border-radius: 15px; font-size: 22px; font-weight: 800;
}
h1, h2 { margin: 0; letter-spacing: -.035em; }
.login-card h1 { font-size: 32px; }
label { display: block; margin: 28px 0 8px; font-size: 13px; font-weight: 700; }
input {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  color: var(--ink); background: var(--white); outline: none; transition: .2s;
}
input:focus { border-color: #6da17b; box-shadow: 0 0 0 3px rgba(50, 115, 70, .12); }
button { border: 0; border-radius: 10px; padding: 11px 16px; font-weight: 750; transition: .18s; }
button:hover { transform: translateY(-1px); }
.primary { color: white; background: var(--green); }
.primary:hover { background: var(--green-dark); }
.secondary { color: var(--green-dark); background: var(--green-soft); }
.ghost { color: var(--muted); background: transparent; border: 1px solid var(--line); }
.full { width: 100%; margin-top: 14px; }
.small { padding: 8px 11px; font-size: 12px; }

.app-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 38px 0 80px; }
.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.topbar h1 { font-size: 30px; }
.top-actions { display: flex; align-items: center; gap: 14px; }
.save-state { color: var(--muted); font-size: 12px; }
.summary-grid { display: grid; grid-template-columns: 1fr 1.35fr 2fr; gap: 14px; margin-bottom: 18px; }
.summary-card {
  min-height: 132px; padding: 22px; background: var(--white); border: 1px solid var(--line);
  border-radius: 16px; display: flex; flex-direction: column; justify-content: space-between;
}
.summary-card.accent { color: white; background: var(--green); border-color: var(--green); }
.summary-card span, .summary-card small { opacity: .72; font-size: 12px; }
.summary-card strong { font-size: 24px; letter-spacing: -.03em; }
.summary-card.accent strong { font-size: 42px; }
.panel { padding: 26px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
.quick-check { display: grid; grid-template-columns: 1fr 1.25fr; gap: 26px; align-items: center; }
.quick-check h2, .list-heading h2 { font-size: 22px; }
.quick-check p { margin-bottom: 0; }
.quick-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.result-box { grid-column: 1 / -1; padding: 14px 16px; border-radius: 12px; background: var(--paper); font-size: 13px; }
.result-box.ok { color: var(--green); background: var(--green-soft); }
.result-box.failed { color: var(--red); background: #fff0ee; }
.list-heading { display: flex; justify-content: space-between; align-items: end; margin: 36px 0 15px; }
.heading-actions { display: flex; gap: 10px; }
.groups { display: grid; gap: 13px; }
.group-card { overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 8px 24px rgba(25,47,34,.035); }
.group-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.owner-wrap, .group-actions { display: flex; align-items: center; gap: 10px; }
.avatar { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; color: var(--green); background: var(--green-soft); font-weight: 800; }
.owner-input { width: 130px; padding: 7px 8px; border-color: transparent; background: transparent; font-weight: 800; }
.owner-input:hover { border-color: var(--line); }
.count-pill { color: var(--muted); background: var(--paper); border-radius: 999px; padding: 4px 8px; font-size: 11px; }
.link-list { padding: 5px 18px; }
.link-row { display: grid; grid-template-columns: 10px 145px minmax(250px, 1fr) 110px auto auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid #edf1ee; }
.link-row:last-child { border-bottom: 0; }
.label-input, .url-input { padding: 9px 10px; background: #fafcf9; }
.url-input { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #bdc7c0; }
.status-dot.ok { background: #2b9b50; box-shadow: 0 0 0 4px #e3f5e9; }
.status-dot.failed { background: #d74436; box-shadow: 0 0 0 4px #fde9e7; }
.status-dot.loading { background: var(--amber); animation: pulse 1s infinite; }
.check-status { color: var(--muted); font-size: 11px; text-align: right; }
.icon-button { width: 30px; height: 30px; padding: 0; color: #98a29b; background: transparent; font-size: 20px; }
.icon-button:hover { color: var(--red); background: #fff0ee; }
.toast { position: fixed; right: 24px; bottom: 24px; padding: 13px 17px; color: white; background: var(--ink); border-radius: 10px; box-shadow: var(--shadow); opacity: 0; transform: translateY(10px); pointer-events: none; transition: .2s; }
.toast.show { opacity: 1; transform: none; }
@keyframes pulse { 50% { opacity: .35; } }

@media (max-width: 820px) {
  .app-shell { width: min(100% - 24px, 1180px); padding-top: 22px; }
  .topbar, .list-heading { align-items: flex-start; gap: 16px; }
  .save-state { display: none; }
  .summary-grid { grid-template-columns: 1fr 1fr; }
  .summary-card.wide { grid-column: 1 / -1; }
  .quick-check { grid-template-columns: 1fr; }
  .link-row { grid-template-columns: 10px 100px 1fr auto auto; }
  .check-status { display: none; }
}
@media (max-width: 560px) {
  .login-card { padding: 30px 24px; }
  .topbar, .list-heading { flex-direction: column; }
  .summary-grid { grid-template-columns: 1fr; }
  .summary-card.wide { grid-column: auto; }
  .quick-form { grid-template-columns: 1fr; }
  .group-header { align-items: flex-start; }
  .link-row { grid-template-columns: 10px 1fr auto auto; padding: 13px 0; }
  .label-input { grid-column: 2 / 3; }
  .url-input { grid-column: 2 / -1; grid-row: 2; }
}