/* ---------- Fonts (local files, no CDN) ---------- */
@font-face {
  font-family: "Space Grotesk";
  src: url("assets/space-grotesk.ttf") format("truetype");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "Work Sans";
  src: url("assets/work-sans.ttf") format("truetype");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --surface-muted: #efeae1;
  --border: #e2dbcd;
  --border-strong: #cfc6b3;
  --ink: #211d17;
  --ink-muted: #6c6355;
  --ink-faint: #948a78;
  --accent: #4a3f72;
  --accent-strong: #362d57;
  --accent-tint: #eae7f4;
  --focus-ring: #362d57;

  --status-todo: #4b5a68;
  --status-todo-tint: #e6ebee;
  --status-progress: #9a5b13;
  --status-progress-tint: #f7e9cf;
  --status-blocked: #ad2c22;
  --status-blocked-tint: #fae2df;
  --status-done: #2c6e4c;
  --status-done-tint: #e2f0e7;

  --priority-high: #ad2c22;
  --priority-medium: #9a6b13;
  --priority-low: #6c6355;

  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Work Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-panel: -18px 0 40px rgba(33, 29, 23, 0.16);
}

/* ---------- Reset ---------- */
* {
  box-sizing: border-box;
}
html, body {
  height: 100%;
}
html {
  overflow-x: hidden;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
  color: var(--ink);
  text-wrap: balance;
}
p {
  margin: 0;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
input, select {
  font: inherit;
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- App shell ---------- */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  padding: calc(0.9rem + env(safe-area-inset-top)) calc(1.75rem + env(safe-area-inset-right)) 0.9rem
    calc(1.75rem + env(safe-area-inset-left));
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 0 0 auto;
}
.brand-mark {
  color: var(--accent);
  display: inline-flex;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.brand-tagline {
  font-size: 0.72rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.search-form {
  position: relative;
  flex: 1 1 320px;
  max-width: 420px;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--ink-faint);
  pointer-events: none;
}
#search-input {
  width: 100%;
  padding: 0.6rem 0.9rem 0.6rem 2.4rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--bg);
  font-size: 0.92rem;
}
#search-input::placeholder {
  color: var(--ink-faint);
}
#search-input:focus-visible {
  background: var(--surface);
}

.filter-field {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: 0 0 auto;
  margin-left: auto;
}
.filter-field label {
  font-size: 0.82rem;
  color: var(--ink-muted);
  font-weight: 500;
}
#filter-select {
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6"><path d="M1 1l4 4 4-4" stroke="%236c6355" stroke-width="1.4" fill="none" stroke-linecap="round" stroke-linejoin="round"/></svg>') no-repeat right 0.75rem center;
  color: var(--ink);
  appearance: none;
  -webkit-appearance: none;
  font-size: 0.9rem;
  min-width: 152px;
}

/* ---------- Layout ---------- */
.layout {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 248px 1fr;
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 1.6rem 1.1rem;
  background: var(--surface);
  display: flex;
  flex-direction: column;
}
.sidebar-heading {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  font-weight: 600;
  margin-bottom: 0.65rem;
  padding: 0 0.5rem;
}
.status-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.status-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.55rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  text-align: left;
}
.status-nav-btn:hover {
  background: var(--surface-muted);
}
.status-nav-btn[aria-pressed="true"] {
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-weight: 600;
}
.status-nav-label {
  flex: 1 1 auto;
}
.status-nav-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
  background: var(--surface-muted);
  border-radius: 999px;
  padding: 0.08rem 0.5rem;
  min-width: 1.6rem;
  text-align: center;
}
.status-nav-btn[aria-pressed="true"] .status-nav-count {
  background: #fff;
  color: var(--accent-strong);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.status-dot--todo { background: var(--status-todo); }
.status-dot--in-progress { background: var(--status-progress); }
.status-dot--blocked { background: var(--status-blocked); }
.status-dot--done { background: var(--status-done); }

.sidebar-footer {
  margin-top: auto;
  padding: 0.85rem;
  border-top: 1px solid var(--border);
}
.sidebar-footer-title {
  font-weight: 600;
  font-size: 0.85rem;
}
.sidebar-footer-note {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 0.25rem;
  line-height: 1.4;
}

.content {
  padding: 1.75rem 2.5rem 3rem;
  max-width: 1120px;
}
.content-header {
  margin-bottom: 1.25rem;
}
#view-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.view-subtitle {
  color: var(--ink-muted);
  font-size: 0.92rem;
  margin-top: 0.25rem;
}

/* ---------- Task list ---------- */
.task-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.item-card {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 0.95rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: left;
  scroll-margin-top: 5rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.item-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 4px 14px rgba(33, 29, 23, 0.06);
}
@media (prefers-reduced-motion: no-preference) {
  .item-card:active {
    transform: scale(0.997);
  }
}

.item-status {
  flex: 0 0 auto;
  margin-top: 0.2rem;
}

.item-main {
  flex: 1 1 auto;
  min-width: 0;
}
.item-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  margin: 0 0 0.35rem;
  overflow-wrap: anywhere;
}
.item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
}
.item-meta-sep {
  color: var(--border-strong);
}
.item-meta-mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}
.item-meta-overdue {
  color: var(--status-blocked);
  font-weight: 600;
}

.item-side {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.status-badge--todo { background: var(--status-todo-tint); color: var(--status-todo); }
.status-badge--in-progress { background: var(--status-progress-tint); color: var(--status-progress); }
.status-badge--blocked { background: var(--status-blocked-tint); color: var(--status-blocked); }
.status-badge--done { background: var(--status-done-tint); color: var(--status-done); }

.priority-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.74rem;
  color: var(--ink-muted);
  white-space: nowrap;
}
.priority-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.priority-dot--high { background: var(--priority-high); }
.priority-dot--medium { background: var(--priority-medium); }
.priority-dot--low { background: var(--priority-low); }

/* ---------- Empty state ---------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 3.5rem 1.5rem;
  color: var(--ink-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.empty-state svg {
  color: var(--ink-faint);
  margin-bottom: 0.25rem;
}
.empty-state-title {
  font-weight: 600;
  color: var(--ink);
}
.empty-state-body {
  font-size: 0.9rem;
  max-width: 32ch;
}

.btn-secondary {
  margin-top: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-weight: 600;
  font-size: 0.88rem;
}
.btn-secondary:hover {
  background: var(--surface-muted);
}

/* ---------- Detail dialog ---------- */
.detail-dialog {
  position: fixed;
  inset: 0 0 0 auto;
  top: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  height: 100%;
  width: min(460px, 100vw);
  max-width: 100vw;
  max-height: 100vh;
  border: none;
  padding: 0;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
  transform: translateX(100%);
}
.detail-dialog[open] {
  transform: translateX(0);
}
@media (prefers-reduced-motion: no-preference) {
  .detail-dialog {
    transition: transform 0.28s ease;
  }
}
.detail-dialog::backdrop {
  background: rgba(28, 24, 18, 0.42);
}

.detail-inner {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(1.6rem + env(safe-area-inset-top)) calc(1.6rem + env(safe-area-inset-right))
    calc(2.5rem + env(safe-area-inset-bottom)) 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.detail-header-text {
  flex: 1 1 auto;
  min-width: 0;
}
.detail-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}
#detail-title {
  font-size: 1.4rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.close-btn {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--ink-muted);
}
.close-btn:hover {
  background: var(--surface-muted);
  color: var(--ink);
}

.detail-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1rem;
  margin: 0;
  padding: 1rem;
  background: var(--bg);
  border-radius: var(--radius-md);
}
.detail-meta-item dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  margin-bottom: 0.2rem;
}
.detail-meta-item dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.detail-tags:empty {
  display: none;
}
.detail-tags li {
  font-size: 0.78rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-weight: 600;
}

.status-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.status-field label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-muted);
}
#status-select {
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6"><path d="M1 1l4 4 4-4" stroke="%236c6355" stroke-width="1.4" fill="none" stroke-linecap="round" stroke-linejoin="round"/></svg>') no-repeat right 0.75rem center;
  color: var(--ink);
  appearance: none;
  -webkit-appearance: none;
  font-size: 0.92rem;
  max-width: 220px;
}
.status-feedback {
  min-height: 1.1em;
  font-size: 0.82rem;
  color: var(--status-done);
  font-weight: 600;
}

.detail-body {
  font-size: 0.95rem;
  color: var(--ink);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.detail-body p {
  margin: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.1rem;
  }
  .sidebar-heading {
    display: none;
  }
  .status-nav {
    flex-direction: row;
    overflow-x: auto;
    gap: 0.5rem;
    padding-bottom: 0.2rem;
  }
  .status-nav-btn {
    width: auto;
    white-space: nowrap;
    background: var(--surface-muted);
  }
  .status-nav-btn[aria-pressed="true"] {
    background: var(--accent-tint);
  }
  .sidebar-footer {
    display: none;
  }
  .content {
    padding: 1.5rem 1.25rem 3rem;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-wrap: wrap;
    padding: calc(0.85rem + env(safe-area-inset-top)) calc(1.1rem + env(safe-area-inset-right)) 0.85rem
      calc(1.1rem + env(safe-area-inset-left));
    gap: 0.75rem;
  }
  .brand {
    order: 1;
    flex: 1 1 100%;
  }
  .search-form {
    order: 2;
    flex: 1 1 100%;
    max-width: none;
  }
  .filter-field {
    order: 3;
    flex: 1 1 100%;
    margin-left: 0;
  }
  #filter-select {
    flex: 1 1 auto;
  }
  .item-card {
    flex-wrap: wrap;
  }
  .item-side {
    flex-direction: row;
    align-items: center;
    flex: 1 1 100%;
    justify-content: space-between;
    margin-top: 0.4rem;
  }
  .detail-meta {
    grid-template-columns: 1fr;
  }
}