@font-face {
  font-family: "Space Grotesk";
  src: url("assets/space-grotesk.ttf") format("truetype");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "DM Sans";
  src: url("assets/dm-sans.ttf") format("truetype");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f5f1ea;
  --bg-2: #efe9df;
  --surface: #ffffff;
  --surface-2: #fbf8f3;
  --text: #1f1b16;
  --text-muted: #5c544a;
  --border: #e3ddd2;
  --border-strong: #cfc6b7;
  --accent: #0f766e;
  --accent-2: #0d5f59;
  --accent-soft: #dff1ee;
  --danger: #b91c1c;
  --shadow: 0 1px 2px rgba(31,27,22,.06), 0 8px 24px rgba(31,27,22,.08);
  --radius: 14px;
  --radius-sm: 10px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

[data-theme="dark"] {
  --bg: #16130f;
  --bg-2: #1c1813;
  --surface: #221e18;
  --surface-2: #2a251e;
  --text: #f3eee4;
  --text-muted: #b8ae9f;
  --border: #3a342c;
  --border-strong: #52493d;
  --accent: #2dd4bf;
  --accent-2: #5eead4;
  --accent-soft: #13302b;
  --danger: #f87171;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg: #16130f; --bg-2: #1c1813; --surface: #221e18; --surface-2: #2a251e;
    --text: #f3eee4; --text-muted: #b8ae9f; --border: #3a342c; --border-strong: #52493d;
    --accent: #2dd4bf; --accent-2: #5eead4; --accent-soft: #13302b; --danger: #f87171;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: .5rem 1rem; border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .75rem; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent); color: #fff;
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-display); font-size: 1.1rem; }
.brand-sub { font-size: .8rem; color: var(--text-muted); }

.icon-btn {
  width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); cursor: pointer; font-size: 1.1rem;
}
.icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.layout {
  max-width: 980px; margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  display: flex; flex-direction: column; gap: 1.25rem;
}

.toolbar {
  display: grid; gap: .85rem;
  grid-template-columns: 1fr;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
@media (min-width: 640px) {
  .toolbar { grid-template-columns: 2fr 1fr auto; align-items: end; }
}
.field { display: flex; flex-direction: column; gap: .35rem; }
.field label { font-size: .8rem; font-weight: 600; color: var(--text-muted); }
.field input, .field select, .status-select {
  font-family: var(--font-body); font-size: 1rem;
  padding: .6rem .75rem;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text);
  min-height: 44px;
}
.field input:focus, .field select:focus, .status-select:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}
.result-count { font-size: .85rem; color: var(--text-muted); align-self: center; padding-bottom: .35rem; }

.task-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .75rem; }

.item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex; flex-direction: column; gap: .6rem;
  transition: border-color .15s ease, transform .15s ease;
}
.item:hover { border-color: var(--border-strong); }
.item:focus-within { border-color: var(--accent); }

.item-head { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.item-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin: 0; }
.item-meta { display: flex; flex-wrap: wrap; gap: .5rem .9rem; font-size: .85rem; color: var(--text-muted); }
.item-meta span { display: inline-flex; align-items: center; gap: .35rem; }

.badge {
  display: inline-block; font-size: .72rem; font-weight: 600;
  padding: .2rem .55rem; border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2); color: var(--text-muted);
  text-transform: none;
}
.badge.todo { color: #7c5e10; background: #fbf1d6; border-color: #f0e0a8; }
.badge.in-progress { color: #1e40af; background: #dbeafe; border-color: #bfdbfe; }
.badge.blocked { color: #9f1239; background: #ffe4e6; border-color: #fecdd3; }
.badge.done { color: #166534; background: #dcfce7; border-color: #bbf7d0; }
[data-theme="dark"] .badge.todo { color: #fcd34d; background: #3a2f10; border-color: #5a4a1a; }
[data-theme="dark"] .badge.in-progress { color: #93c5fd; background: #1e2a4a; border-color: #2a3a6a; }
[data-theme="dark"] .badge.blocked { color: #fda4af; background: #3a1a22; border-color: #5a2a32; }
[data-theme="dark"] .badge.done { color: #86efac; background: #1a3322; border-color: #2a5234; }

.tags { display: flex; flex-wrap: wrap; gap: .35rem; }
.tag { font-size: .72rem; padding: .15rem .5rem; border-radius: 6px; background: var(--bg-2); color: var(--text-muted); border: 1px solid var(--border); }

.open-item {
  font-family: var(--font-body); font-size: .9rem; font-weight: 600;
  padding: .5rem 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  cursor: pointer; min-height: 40px;
}
.open-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.open-item:hover { background: var(--accent-2); border-color: var(--accent-2); }

.empty-state {
  text-align: center; padding: 3rem 1.5rem;
  background: var(--surface); border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}
.empty-state h2 { font-family: var(--font-display); margin: 0 0 .5rem; }
.empty-state p { color: var(--text-muted); margin: 0 0 1rem; }

.btn { font-family: var(--font-body); font-size: .95rem; font-weight: 600; padding: .6rem 1.1rem; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); cursor: pointer; min-height: 44px; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }

/* overlay + detail */
.overlay {
  position: fixed; inset: 0; background: rgba(20,16,12,.45);
  z-index: 30;
}
.detail {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(640px, calc(100vw - 2rem));
  max-height: calc(100dvh - 2rem);
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.25rem 1.5rem;
  z-index: 40;
  display: flex; flex-direction: column; gap: 1rem;
}
.detail[hidden], .overlay[hidden] { display: none; }

.detail-head { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.detail-title { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; margin: 0; }
.close-detail {
  width: 36px; height: 36px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface-2);
  color: var(--text); cursor: pointer; font-size: 1.1rem; flex-shrink: 0;
}
.close-detail:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.detail-meta { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem .75rem; font-size: .9rem; }
.detail-meta dt { color: var(--text-muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.detail-meta dd { margin: 0; }

.detail-body {
  white-space: pre-wrap;
  font-size: .95rem; line-height: 1.6;
  padding: 1rem; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}

.status-row { display: flex; flex-direction: column; gap: .4rem; }
.status-row label { font-size: .8rem; font-weight: 600; color: var(--text-muted); }
.status-select { width: 100%; }

.tags-row { display: flex; flex-wrap: wrap; gap: .35rem; }

.toast {
  position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--text); color: var(--bg);
  padding: .6rem 1rem; border-radius: 999px; font-size: .9rem; font-weight: 500;
  z-index: 50; transition: transform .2s ease; box-shadow: var(--shadow);
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .toast { transition: none; }
  .item { transition: none; }
}

@media (max-width: 480px) {
  .detail-meta { grid-template-columns: 1fr; }
}