/* Shared components v2: wordmark, buttons, fields, pills, cards, toasts,
   sheets. Glass everywhere a surface floats; dither where progress lives. */

/* Wordmark: TASK_ in pixel type with blinking block cursor */
.wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}
.wordmark::after {
  content: "_";
  color: var(--ink);
  animation: wordmark-blink 1.2s steps(1) infinite;
}
@keyframes wordmark-blink { 50% { opacity: 0; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--sp-2);
  min-height: 44px; /* iOS touch target */
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease-spring);
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-card); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary .ri { color: var(--accent-ink); }
.btn-ghost {
  border-color: var(--glass-border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover { background: var(--glass-bg-strong); }
.btn-danger { background: var(--danger-soft); color: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Icon-only buttons (triage verbs, chrome) */
.btn-icon {
  min-width: 44px;
  padding: var(--sp-2);
  border-radius: var(--r-pill);
}

/* Form fields */
.field { display: grid; gap: var(--sp-1); margin-bottom: var(--sp-4); }
.field label { font-size: var(--text-sm); font-weight: 600; color: var(--ink-secondary); }
.input {
  width: 100%;
  min-height: 44px;
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--hairline);
  border-radius: var(--r-ctl);
  background: var(--bg-surface);
  font: inherit;
  color: var(--ink);
}
.input:focus-visible { box-shadow: var(--focus-ring); }

/* Pills (mono metadata) */
.pill {
  display: inline-flex; align-items: center; gap: var(--sp-1);
  padding: 1px var(--sp-2);
  border-radius: var(--r-pill);
  border: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  background: var(--bg-surface);
}
.pill-low    { color: var(--level-low);    border-color: currentColor; }
.pill-normal { color: var(--level-normal); border-color: currentColor; }
.pill-high   { color: var(--level-high);   border-color: currentColor; }
.pill-blocked { color: var(--blocked); border-color: currentColor; }
.chip-blocking { border: 1px solid var(--blocked); color: var(--blocked); background: transparent; }

/* Cards - SOLID, crisp, squarish. Content lives on opaque blocks so text
   stays legible and the pixel/dither language reads. Glass is reserved for
   chrome (sidebar, nav, sheets) via the .glass class. */
.card {
  position: relative;
  overflow: hidden;
  background: var(--block-bg);
  border: 1px solid var(--block-border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
}
.card-solid {
  background: var(--block-bg);
  border: 1px solid var(--block-border);
  border-radius: var(--r-ctl);
  box-shadow: var(--shadow-card);
}

/* ----- pixel block: the standard solid task card/row surface. ----- */
.pxcard {
  position: relative;
  overflow: hidden;
  background: var(--block-bg);
  border: 1px solid var(--block-border);
  border-radius: var(--r-block);
  box-shadow: var(--shadow-card);
}
.pxcard.status-todo { --stripe: var(--status-todo); }
.pxcard.status-in_progress { --stripe: var(--status-in-progress); }
.pxcard.status-on_hold { --stripe: var(--status-on-hold); }
.pxcard.status-done { --stripe: var(--status-done); }
.pxcard.blocked { --stripe: var(--blocked); }

/* ----- dithered frame -----
   A checkerboard pixel border in --stripe, drawn all the way around the
   block (not a left stripe). The two-layer mask keeps only the outer ring;
   the dither background fills it. Shared by task cards, toasts, notes, and
   landing blocks. Elements set --stripe (status colour, or a neutral). */
.card::before,
.pxcard::before,
.toast::before,
.hz-card::before,
.board-card::before,
.flow-node::before,
.task-row::before,
.note::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  padding: 4px;
  background: repeating-conic-gradient(var(--stripe, var(--ink-faint)) 0% 25%, transparent 0% 50%) 0 0 / 3px 3px;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
}

/* Error note (auth forms) */
.form-error {
  display: none;
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: var(--sp-4);
  border-radius: var(--r-ctl);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: var(--text-sm);
}
.form-error.show { display: block; }

/* Toasts - floating glass slivers */
.toast-container {
  position: fixed;
  bottom: calc(var(--sp-5) + env(safe-area-inset-bottom) + 64px);
  right: var(--sp-5);
  left: var(--sp-5);
  display: grid; gap: var(--sp-2);
  justify-items: end;
  z-index: var(--z-toast);
  pointer-events: none;
}
@media (min-width: 768px) {
  .toast-container { left: auto; bottom: calc(var(--sp-5) + env(safe-area-inset-bottom)); }
}
.toast {
  pointer-events: auto;
  position: relative; overflow: hidden;
  display: flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-ctl);
  border: 1px solid var(--block-border);
  background: var(--block-bg);
  box-shadow: var(--shadow-pop);
  font-size: var(--text-sm);
  animation: toast-in 0.35s var(--ease-spring);
  --stripe: var(--status-in-progress);
}
.toast-error { --stripe: var(--danger); }
.toast-success { --stripe: var(--success); }
@keyframes toast-in { from { transform: translateY(12px) scale(0.96); opacity: 0; } }

.toast-action {
  margin-left: var(--sp-3);
  padding: var(--sp-1) var(--sp-3);
  border: none;
  border-radius: var(--r-block);
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
}
.toast-action:hover { background: var(--accent-hover); }

/* Pixel checker - subtle dither texture for empty states + fills. */
.px-check {
  background-image:
    repeating-conic-gradient(var(--bg-sunken) 0% 25%, transparent 0% 50%);
  background-size: 4px 4px;
}

/* Empty state - pixel voice */
.empty-state {
  display: grid; place-items: center; gap: var(--sp-2);
  padding: var(--sp-6);
  color: var(--ink-secondary);
  text-align: center;
}
.empty-state .display { font-size: var(--text-lg); }

/* Drag & drop */
.drag-ghost {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  opacity: 0.9;
  z-index: var(--z-toast);
  box-shadow: var(--shadow-pop);
  transform-origin: 20% 20%;
  rotate: 2deg;
}
.drag-source { opacity: 0.4; }

/* Bottom sheets (mobile) / centered panels (desktop) */
.sheet-overlay {
  position: fixed; inset: 0;
  background: rgba(16, 16, 14, 0.35);
  z-index: var(--z-modal);
  display: flex; align-items: flex-end; justify-content: center;
}
.sheet {
  width: 100%;
  max-height: 82dvh;
  overflow-y: auto;
  padding: var(--sp-4) var(--sp-4) calc(var(--sp-5) + env(safe-area-inset-bottom));
  border-radius: var(--r-card) var(--r-card) 0 0;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-bottom: none;
  box-shadow: var(--shadow-pop);
  animation: sheet-up 0.32s var(--ease-spring);
}
.sheet::before {
  content: "";
  display: block;
  width: 44px; height: 4px;
  margin: 0 auto var(--sp-3);
  border-radius: var(--r-pill);
  background: var(--ink-faint);
  opacity: 0.5;
}
@keyframes sheet-up { from { transform: translateY(24px); opacity: 0; } }
@media (min-width: 768px) {
  .sheet-overlay { align-items: center; }
  .sheet {
    width: min(440px, calc(100vw - 2 * var(--sp-5)));
    border-radius: var(--r-card);
    border-bottom: 1px solid var(--glass-border);
    animation: sheet-pop 0.28s var(--ease-spring);
  }
  .sheet::before { display: none; }
  @keyframes sheet-pop { from { transform: translateY(10px) scale(0.98); opacity: 0; } }
}
.sheet h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--sp-3);
}