@font-face {
  font-family: "Space Grotesk";
  src: url("assets/space-grotesk.ttf") format("truetype");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "DM Sans";
  src: url("assets/dm-sans.ttf") format("truetype");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --color-primary: #0D9488;
  --color-primary-ink: #0F172A;
  --color-secondary: #14B8A6;
  --color-accent: #EA580C;
  --color-bg: #F0FDFA;
  --color-fg: #134E4A;
  --color-card: #FFFFFF;
  --color-card-fg: #134E4A;
  --color-muted: #E8F1F4;
  --color-muted-fg: #475569;
  --color-border: #99F6E4;
  --color-destructive: #DC2626;
  --color-ring: #0D9488;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.08);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-fg);
  background: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 12px;
  z-index: 100;
}
.skip:focus { left: 8px; top: 8px; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.brand-tag {
  font-size: 12px;
  color: var(--color-muted-fg);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-left: 4px;
}
.count-label { font-size: 14px; color: var(--color-muted-fg); }

.layout {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-6);
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted-fg);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.field input, .field select, .status-control {
  font: inherit;
  font-size: 15px;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  color: var(--color-fg);
  min-height: 44px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .status-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13,148,136,.2);
}

.task-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3);
  align-items: center;
  transition: transform .15s ease, box-shadow .15s ease;
}
.item:hover { box-shadow: var(--shadow); transform: translateY(-1px); }

.item-main { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.item-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--color-card-fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.item-sub {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 13px;
  color: var(--color-muted-fg);
}
.item-sub span { display: inline-flex; align-items: center; gap: 4px; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.badge.todo { background: #E0F2FE; color: #075985; }
.badge.in-progress { background: #FEF3C7; color: #92400E; }
.badge.blocked { background: #FEE2E2; color: #991B1B; }
.badge.done { background: #DCFCE7; color: #166534; }

.open-item {
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  min-height: 40px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.open-item:hover { background: var(--color-primary); color: #fff; }
.open-item:focus-visible { outline: 2px solid var(--color-ring); outline-offset: 2px; }

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--color-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
}
.empty-state h2 { font-family: var(--font-display); margin: 0 0 var(--space-2); }
.empty-state p { color: var(--color-muted-fg); margin: 0 0 var(--space-4); }
.empty-icon { color: var(--color-muted-fg); margin-bottom: var(--space-3); }

.btn { font: inherit; cursor: pointer; border: none; border-radius: var(--radius-sm); padding: 10px 16px; min-height: 44px; font-weight: 600; }
.btn-ghost { background: var(--color-muted); color: var(--color-fg); }
.btn-ghost:hover { background: var(--color-border); }

/* Detail dialog */
.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.45);
  z-index: 40;
  backdrop-filter: blur(2px);
}
.detail-dialog {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(640px, 92vw);
  max-height: 88vh;
  overflow: auto;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(15,23,42,.25);
  z-index: 50;
  padding: 0;
}
.detail-dialog[hidden] { display: none; }
.backdrop[hidden] { display: none; }

.detail-inner { padding: var(--space-6); }
.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.detail-meta { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; }
.detail-project { font-size: 13px; color: var(--color-muted-fg); }
.detail-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
  color: var(--color-card-fg);
}
.icon-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--color-muted-fg);
}
.icon-btn:hover { background: var(--color-muted); color: var(--color-fg); }
.icon-btn:focus-visible { outline: 2px solid var(--color-ring); outline-offset: 2px; }

.detail-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  background: var(--color-muted);
  border-radius: var(--radius-sm);
}
.detail-facts div { display: flex; flex-direction: column; gap: 2px; }
.detail-facts dt { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--color-muted-fg); font-weight: 600; }
.detail-facts dd { margin: 0; font-size: 14px; font-weight: 500; }

.detail-body-section h2 { font-family: var(--font-display); font-size: 16px; margin: 0 0 var(--space-2); }
.detail-body {
  white-space: pre-wrap;
  font-size: 15px;
  color: var(--color-card-fg);
  line-height: 1.6;
}

.status-section {
  margin-top: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.status-section label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted-fg);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.status-control { max-width: 260px; }
.feedback {
  font-size: 13px;
  color: var(--color-primary);
  min-height: 18px;
  margin: 0;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-fg);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  z-index: 60;
  box-shadow: var(--shadow);
}
.toast[hidden] { display: none; }

@media (max-width: 640px) {
  .toolbar { grid-template-columns: 1fr; }
  .detail-dialog {
    top: auto; left: 0; right: 0; bottom: 0;
    transform: none;
    width: 100%;
    max-height: 92vh;
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .detail-facts { grid-template-columns: 1fr; }
  .item { grid-template-columns: 1fr; }
  .open-item { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}