:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --surface-2: #f0efe9;
  --border: #e3e1d9;
  --text: #1f2328;
  --muted: #646b73;
  --accent: #1f6f5c;
  --accent-hover: #185a4a;
  --accent-soft: #e2f0eb;
  --accent-text: #ffffff;
  --danger: #b4372f;
  --danger-soft: #fbe9e7;
  --success: #1f7a45;
  --success-soft: #e3f3e8;
  --warn: #8a5a00;
  --warn-soft: #fff3d6;
  --mark: #ffe58a;
  --shadow: 0 1px 2px rgba(20, 20, 10, .05), 0 4px 16px rgba(20, 20, 10, .06);
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --surface: #1c2024;
    --surface-2: #242a2f;
    --border: #30373d;
    --text: #e8eaed;
    --muted: #9aa3ab;
    --accent: #4fbf9f;
    --accent-hover: #6fd3b6;
    --accent-soft: #1d3530;
    --accent-text: #0b1a16;
    --danger: #f2877d;
    --danger-soft: #3a2220;
    --success: #6fd39a;
    --success-soft: #1b3326;
    --warn: #f0c060;
    --warn-soft: #3a3018;
    --mark: #6b5a12;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
button, input, textarea, select { font: inherit; color: inherit; }
a { color: var(--accent); }
mark { background: var(--mark); color: inherit; border-radius: 3px; padding: 0 1px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 2px; }

/* ---------- buttons & inputs ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 9px 16px; border-radius: 10px; cursor: pointer; font-weight: 550;
  transition: background .15s, border-color .15s, transform .05s;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-sm { padding: 5px 10px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 12px 22px; font-size: 16px; }
.btn svg { width: 16px; height: 16px; flex: none; }

.input, .textarea, .select {
  width: 100%; border: 1px solid var(--border); background: var(--surface);
  border-radius: 10px; padding: 10px 12px; transition: border-color .15s, box-shadow .15s;
}
.input:focus, .textarea:focus, .select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
.textarea { resize: vertical; min-height: 160px; line-height: 1.55; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
label.field { display: block; font-weight: 600; margin-bottom: 6px; }
.hint { color: var(--muted); font-size: 13px; }

/* ---------- layout ---------- */
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
header.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
header.top .wrap { display: flex; align-items: center; gap: 12px; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo {
  width: 38px; height: 38px; border-radius: 10px; flex: none;
  background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center;
}
.logo svg { width: 22px; height: 22px; }
.brand h1 { font-size: 17px; margin: 0; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand p { margin: 0; font-size: 12.5px; color: var(--muted); }
.spacer { flex: 1; }

main { padding: 24px 0 64px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 22px; }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
}
.stat .num { font-size: 26px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat .lbl { color: var(--muted); font-size: 13px; }
.stat .num.small { font-size: 16px; padding: 7px 0 4px; }

.tabs {
  display: inline-flex; gap: 4px; padding: 4px; margin-bottom: 20px;
  background: var(--surface-2); border-radius: 12px; border: 1px solid var(--border);
  max-width: 100%; overflow-x: auto;
}
.tab {
  border: 0; background: transparent; padding: 8px 16px; border-radius: 9px;
  cursor: pointer; font-weight: 600; color: var(--muted); display: inline-flex; gap: 8px; align-items: center;
  white-space: nowrap;
}
.tab svg { width: 16px; height: 16px; }
.tab[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.panel[hidden] { display: none; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.search-box { position: relative; flex: 1 1 280px; }
.search-box svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--muted); pointer-events: none; }
.search-box .input { padding-left: 40px; }
.toolbar .select { width: auto; min-width: 150px; }
.count { color: var(--muted); font-size: 13.5px; }

/* ---------- cards ---------- */
.group-title {
  font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em;
  margin: 22px 0 10px; display: flex; align-items: center; gap: 10px;
}
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px;
  min-width: 0;
}
.card h3 { margin: 0; font-size: 16px; line-height: 1.35; overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--muted); font-size: 12.5px; }
.meta span { display: inline-flex; align-items: center; gap: 4px; }
.meta svg { width: 13px; height: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px;
  padding: 3px 10px; font-size: 13px; line-height: 1.4; overflow-wrap: anywhere;
}
.chip.more { background: transparent; color: var(--accent); cursor: pointer; font-weight: 600; border-style: dashed; }
.card-actions { display: flex; gap: 6px; margin-top: auto; padding-top: 4px; }
.sim { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); }
.sim-bar { flex: 1; height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; }
.sim-bar i { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
.rank {
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: none;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 13px;
}
.card-head { display: flex; gap: 10px; align-items: flex-start; }

.empty {
  text-align: center; padding: 48px 16px; color: var(--muted);
  border: 1px dashed var(--border); border-radius: var(--radius); background: var(--surface);
}
.empty svg { width: 40px; height: 40px; margin-bottom: 8px; opacity: .6; }
.empty strong { display: block; color: var(--text); font-size: 16px; margin-bottom: 4px; }

/* ---------- search hero ---------- */
.hero {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); margin-bottom: 18px;
}
.hero h2 { margin: 0 0 4px; font-size: 19px; }
.hero p { margin: 0 0 14px; color: var(--muted); }
.hero form { display: flex; gap: 10px; flex-wrap: wrap; }
.hero form .search-box { flex: 1 1 320px; }
.examples { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; align-items: center; }
.examples .chip { cursor: pointer; background: var(--accent-soft); border-color: transparent; color: var(--accent); font-weight: 550; }
.examples .chip:hover { filter: brightness(.96); }

/* ---------- add data ---------- */
.add-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.box {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.box h2 { margin: 0 0 4px; font-size: 18px; }
.box > p { margin: 0 0 16px; color: var(--muted); }
.methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.method {
  border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 12px 10px;
  cursor: pointer; text-align: center; font-weight: 600; display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: var(--muted);
}
.method svg { width: 22px; height: 22px; }
.method small { font-weight: 400; font-size: 12px; }
.method[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

.drop {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 36px 16px; text-align: center;
  cursor: pointer; transition: border-color .15s, background .15s; background: var(--surface-2);
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop svg { width: 42px; height: 42px; color: var(--accent); }
.drop strong { display: block; font-size: 16px; margin: 6px 0 2px; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row-end { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }

.staged { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.staged:empty { display: none; }
.item {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; display: flex; gap: 12px; align-items: flex-start;
  background: var(--surface);
}
.item.bad { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); background: var(--danger-soft); }
.item.done { border-color: color-mix(in srgb, var(--success) 45%, var(--border)); background: var(--success-soft); }
.item .ico { width: 22px; height: 22px; flex: none; margin-top: 1px; }
.item.ok .ico { color: var(--accent); }
.item.bad .ico { color: var(--danger); }
.item.done .ico { color: var(--success); }
.item .body { flex: 1; min-width: 0; }
.item .name { font-weight: 650; overflow-wrap: anywhere; }
.item .detail { font-size: 13.5px; color: var(--muted); overflow-wrap: anywhere; }
.item.bad .detail { color: var(--danger); }
.item .note { font-size: 13px; color: var(--warn); background: var(--warn-soft); border-radius: 8px; padding: 4px 8px; margin-top: 6px; }
.submit-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 16px; padding-top: 16px;
  border-top: 1px solid var(--border);
}
.submit-bar .hint { flex: 1; }

.guide h3 { margin: 0 0 6px; font-size: 15px; }
.guide ol { margin: 0 0 14px; padding-left: 20px; color: var(--muted); }
.guide ol li { margin-bottom: 4px; }
pre.example {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; overflow-x: auto; margin: 0 0 12px;
}
.alert {
  border-radius: 12px; padding: 12px 14px; margin-bottom: 18px; font-size: 14px;
  background: var(--warn-soft); color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent);
}
.alert ul { margin: 6px 0 0; padding-left: 18px; }

/* ---------- delete ---------- */
.card-actions .btn-danger { margin-left: auto; }
.btn-danger { color: var(--muted); }
.btn-danger:hover { color: var(--danger); background: var(--danger-soft); }
.btn-danger-solid { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger-solid:hover { background: color-mix(in srgb, var(--danger) 85%, #000); border-color: transparent; }
@media (prefers-color-scheme: dark) { .btn-danger-solid { color: #2a0f0c; } }

.modal {
  width: min(440px, calc(100% - 32px)); border: 1px solid var(--border); border-radius: 18px;
  background: var(--surface); color: var(--text); padding: 24px; box-shadow: 0 20px 60px rgba(0, 0, 0, .3);
}
.modal::backdrop { background: rgba(10, 12, 14, .45); backdrop-filter: blur(2px); }
.modal[open] { animation: pop .18s ease-out; }
.modal-icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--danger-soft); color: var(--danger); margin-bottom: 12px;
}
.modal-icon svg { width: 22px; height: 22px; }
.modal h2 { margin: 0 0 12px; font-size: 18px; }
.modal p { margin: 0 0 10px; font-size: 14.5px; }
.modal-target { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; }
.modal-target .name { font-weight: 650; overflow-wrap: anywhere; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

/* ---------- toast ---------- */
.toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 50; display: flex; flex-direction: column; gap: 8px; width: min(440px, calc(100% - 32px)); }
.toast {
  background: var(--text); color: var(--bg); padding: 12px 16px; border-radius: 12px; box-shadow: var(--shadow);
  display: flex; gap: 10px; align-items: center; animation: pop .2s ease-out; font-weight: 500;
}
.toast svg { width: 18px; height: 18px; flex: none; }
.toast span { flex: 1; }
.toast-action {
  border: 0; background: transparent; color: var(--accent-soft); font-weight: 700; cursor: pointer; text-decoration: underline;
  padding: 4px 8px; border-radius: 6px; margin: -4px -6px -4px 0;
}
.toast-action:hover { background: color-mix(in srgb, var(--bg) 15%, transparent); }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.spinner {
  width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent;
  animation: spin .7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton { height: 150px; border-radius: var(--radius); background: linear-gradient(90deg, var(--surface) 0%, var(--surface-2) 50%, var(--surface) 100%); background-size: 200% 100%; animation: shimmer 1.2s infinite; border: 1px solid var(--border); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- login ---------- */
.login-page { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: min(400px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 18px;
  padding: 32px 28px; box-shadow: var(--shadow); text-align: center;
}
.login-card .logo { width: 56px; height: 56px; border-radius: 16px; margin: 0 auto 14px; }
.login-card .logo svg { width: 30px; height: 30px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; }
.login-card > p { margin: 0 0 22px; color: var(--muted); }
.login-card form { text-align: left; }
.pw-wrap { position: relative; }
.pw-wrap .input { padding-right: 76px; font-size: 17px; }
.pw-wrap .btn { position: absolute; right: 5px; top: 50%; transform: translateY(-50%); }
.login-card .btn-primary { width: 100%; margin-top: 14px; }
.error-msg { color: var(--danger); font-size: 14px; min-height: 21px; margin-top: 8px; }
.shake { animation: shake .35s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }

@media (max-width: 860px) {
  .add-layout { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .brand p { display: none; }
  .brand h1 { font-size: 15.5px; }
  .grid { grid-template-columns: 1fr; }
  .methods { grid-template-columns: 1fr 1fr 1fr; }
  .method small { display: none; }
  .tab span.long { display: none; }
  .stat .num { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}