/* NeuroAssist — overrides on top of Pico.css v2.
   All colours use Pico CSS variables so dark mode flips automatically. */

:root {
  --na-radius: 14px;
  --na-radius-sm: 10px;
  --na-shadow: 0 2px 4px rgba(0, 0, 0, .06), 0 8px 24px rgba(0, 0, 0, .08);
}
[data-theme="dark"] {
  --na-shadow: 0 2px 4px rgba(0, 0, 0, .35), 0 8px 24px rgba(0, 0, 0, .45);
}

/* Accessibility utilities */
.sr-only {
  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: -1000px; top: 0;
  background: var(--pico-primary-background); color: var(--pico-primary-inverse);
  padding: 10px 16px; border-radius: 0 0 var(--na-radius-sm) 0;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

[hidden] { display: none !important; }

/* ───── Topbar ───── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding: 12px clamp(16px, 4vw, 28px);
  background: var(--pico-card-background-color);
  border-bottom: 1px solid var(--pico-muted-border-color);
  position: sticky; top: 0; z-index: 10;
}
.brand-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex: 1 1 auto; min-width: 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; min-width: 0; }
.brand-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-mark { font-size: 26px; flex-shrink: 0; }
.topnav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* Desktop: brand sits on the left, theme toggle next to it (compact),
   nav on the right. */
@media (min-width: 640px) {
  .brand-row { flex: 0 0 auto; }
}
.nav-btn {
  background: transparent; border: 2px solid transparent;
  /* Pico's button rule overrides --pico-color to white; reset it. */
  --pico-color: light-dark(#373c44, #c2c7d0);
  color: var(--pico-color); font: inherit; font-weight: 600;
  padding: 8px 14px; border-radius: var(--na-radius-sm); cursor: pointer;
  margin: 0; min-height: 40px;
}
.nav-btn:hover { background: var(--pico-secondary-background); color: var(--pico-color); }
.nav-btn[aria-current="page"] {
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
}
.theme-toggle { font-size: 18px; padding: 6px 12px; }

/* ───── Main / container ───── */
.main { padding-top: 28px; padding-bottom: 80px; max-width: 920px; }
.main:focus { outline: none; }

.view { animation: fade .25s ease-out; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .view { animation: none; } }

/* ───── Home / create form ───── */
.hero { text-align: center; padding: 12px 0; }
.hero h1 { margin: 0 0 8px; letter-spacing: -0.01em; }
.hero-sub { font-size: 1.15rem; color: var(--pico-muted-color); margin: 0 auto 24px; max-width: 560px; }

.create-form {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius);
  padding: 20px;
  box-shadow: var(--na-shadow);
  text-align: left;
}
.create-form textarea {
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.form-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap;
}
.toggle {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; color: var(--pico-muted-color);
  margin: 0;
}
.toggle input { margin: 0; }

.btn-lg { font-size: 1.05rem; padding: 14px 24px; }
.btn-sm { font-size: 0.9rem; padding: 6px 12px; }

.btn-spinner {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, .35); border-top-color: currentColor;
  animation: spin .8s linear infinite; display: none;
  vertical-align: middle; margin-left: 8px;
}
button.is-loading .btn-spinner { display: inline-block; }
button.is-loading .btn-label { opacity: .8; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .btn-spinner, .spinner { animation: none !important; } }

.error {
  margin-top: 14px; padding: 10px 14px;
  background: color-mix(in srgb, var(--pico-del-color, #c62828) 15%, transparent);
  color: var(--pico-del-color, #c62828);
  border-radius: var(--na-radius-sm); font-weight: 700;
}

/* ───── Examples ───── */
.examples { margin-top: 32px; text-align: left; }
.examples-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 12px; flex-wrap: wrap;
}
.examples-head h2 { font-size: 1.1rem; color: var(--pico-muted-color); margin: 0; }

.examples-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
button.example-card {
  background: var(--pico-card-background-color);
  border: 2px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius);
  padding: 14px 16px;
  text-align: left;
  font: inherit;
  /* Pico's button rule overrides --pico-color/--pico-muted-color to white; reset them. */
  --pico-color: light-dark(#373c44, #c2c7d0);
  --pico-muted-color: light-dark(#646b79, #7b8495);
  color: var(--pico-color);
  cursor: pointer; width: 100%;
  display: flex; flex-direction: column; gap: 6px;
  transition: border-color .15s ease, background .15s ease;
}
button.example-card:hover {
  border-color: var(--pico-primary);
  background: var(--pico-card-sectioning-background-color, var(--pico-card-background-color));
}
.example-card .ex-title { font-weight: 700; font-size: 1rem; color: var(--pico-color); }
.example-card .ex-prompt { font-size: 0.9rem; color: var(--pico-muted-color); line-height: 1.45; }
.example-skeleton {
  background: color-mix(in srgb, var(--pico-color) 8%, var(--pico-card-background-color));
  border: 2px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius);
  padding: 14px 16px; height: 92px;
  position: relative; overflow: hidden;
}
.example-skeleton::before {
  content: ""; position: absolute; left: 14px; right: 30%; top: 18px;
  height: 14px; border-radius: 6px;
  background: color-mix(in srgb, var(--pico-color) 18%, transparent);
}
.example-skeleton::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, var(--pico-color) 22%, transparent),
    transparent
  );
  animation: shimmer 1.2s infinite;
}
[data-theme="dark"] .example-skeleton::after {
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, white 22%, transparent),
    transparent
  );
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .example-skeleton::after {
    background: linear-gradient(
      90deg,
      transparent,
      color-mix(in srgb, white 22%, transparent),
      transparent
    );
  }
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce) { .example-skeleton::after { animation: none; } }

/* ───── Project list skeletons ───── */
.project-skeleton {
  background: color-mix(in srgb, var(--pico-color) 8%, var(--pico-card-background-color));
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius);
  padding: 18px;
  display: flex; flex-direction: column; gap: 10px;
  position: relative; overflow: hidden;
}
.project-skeleton .ps-title {
  height: 18px; width: 60%; border-radius: 6px;
  background: color-mix(in srgb, var(--pico-color) 18%, transparent);
}
.project-skeleton .ps-meta {
  height: 12px; width: 35%; border-radius: 6px;
  background: color-mix(in srgb, var(--pico-color) 12%, transparent);
}
.project-skeleton .ps-bar {
  height: 12px; width: 100%; border-radius: 999px;
  background: color-mix(in srgb, var(--pico-color) 12%, transparent);
}
.project-skeleton::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--pico-color) 22%, transparent), transparent);
  animation: shimmer 1.2s infinite;
}
[data-theme="dark"] .project-skeleton::after {
  background: linear-gradient(90deg, transparent, color-mix(in srgb, white 22%, transparent), transparent);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .project-skeleton::after {
    background: linear-gradient(90deg, transparent, color-mix(in srgb, white 22%, transparent), transparent);
  }
}
@media (prefers-reduced-motion: reduce) { .project-skeleton::after { animation: none; } }

/* ───── Projects list ───── */
.projects-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
button.project-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius); padding: 18px;
  display: flex; flex-direction: column; gap: 10px;
  cursor: pointer; text-align: left;
  width: 100%; font: inherit;
  --pico-color: light-dark(#373c44, #c2c7d0);
  --pico-muted-color: light-dark(#646b79, #7b8495);
  color: var(--pico-color);
}
button.project-card:hover { border-color: var(--pico-primary); }
.project-card .title { font-size: 1.15rem; font-weight: 700; }
.project-card .meta { color: var(--pico-muted-color); font-size: 0.95rem; }
.empty { color: var(--pico-muted-color); font-style: italic; }

/* ───── Board ───── */
.board-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; margin-bottom: 12px;
}
.board-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.meta-pill {
  background: var(--pico-primary-background); color: var(--pico-primary-inverse);
  padding: 6px 12px; border-radius: 999px; font-weight: 700;
}

.progress-bar {
  background: var(--pico-secondary-background); border-radius: 999px;
  height: 12px; overflow: hidden; margin-bottom: 22px;
}
.progress-fill {
  background: linear-gradient(90deg, var(--pico-primary), var(--pico-primary-hover, var(--pico-primary)));
  height: 100%; width: 0%; transition: width .3s ease;
}

.task-board { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.task-row {
  display: grid; grid-template-columns: 64px 1fr auto;
  align-items: center; gap: 14px;
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--na-radius); padding: 14px 16px;
}
.task-row.done {
  background: color-mix(in srgb, var(--pico-ins-color, #16a34a) 12%, var(--pico-card-background-color));
  border-color: color-mix(in srgb, var(--pico-ins-color, #16a34a) 40%, var(--pico-muted-border-color));
}
.task-row.done .task-text { text-decoration: line-through; color: var(--pico-muted-color); }
.task-day {
  background: var(--pico-primary-background); color: var(--pico-primary-inverse);
  font-weight: 700; text-align: center;
  padding: 8px; border-radius: var(--na-radius-sm);
}
.task-text { font-size: 1rem; word-break: break-word; }
.task-check { width: 26px; height: 26px; margin: 0; cursor: pointer; }

/* ───── Focus mode ───── */
.view-focus { display: flex; align-items: center; justify-content: center; min-height: 60vh; }
.focus-card {
  width: 100%; max-width: 640px;
  text-align: center; padding: 32px clamp(20px, 5vw, 36px);
  border-radius: var(--na-radius); box-shadow: var(--na-shadow);
}
.focus-day {
  display: inline-block;
  background: var(--pico-primary-background); color: var(--pico-primary-inverse);
  padding: 6px 14px; border-radius: 999px;
  font-weight: 700; margin: 0 0 16px;
}
.focus-task { font-size: clamp(1.4rem, 5vw, 2rem); line-height: 1.25; margin: 0 0 24px; }
.focus-reminder {
  background: color-mix(in srgb, var(--pico-ins-color, #16a34a) 14%, transparent);
  color: var(--pico-ins-color, #16a34a);
  padding: 10px 14px; border-radius: var(--na-radius-sm); font-weight: 700;
  margin: 0 0 18px;
}
.focus-actions {
  display: flex; justify-content: space-between; gap: 12px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.focus-actions > * { flex: 1 1 auto; }
.focus-nav {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border-top: 1px solid var(--pico-muted-border-color); padding-top: 14px;
}
.counter { color: var(--pico-muted-color); font-weight: 700; }

/* ───── Toasts ───── */
.toast-region {
  position: fixed; right: 16px; bottom: 16px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 100; max-width: calc(100vw - 32px);
}
.toast {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-muted-border-color);
  border-left: 6px solid var(--pico-primary);
  border-radius: var(--na-radius-sm); box-shadow: var(--na-shadow);
  padding: 14px 16px; display: flex; align-items: center; gap: 12px;
  min-width: 260px; max-width: 380px;
  animation: slide .25s ease-out;
}
.toast.success { border-left-color: var(--pico-ins-color, #16a34a); }
.toast.warn    { border-left-color: #f59e0b; }
.toast.danger  { border-left-color: var(--pico-del-color, #c62828); }
.toast .msg { flex: 1; font-weight: 600; color: var(--pico-color); }
.toast .close {
  background: transparent; border: 0; font-size: 22px; cursor: pointer;
  color: var(--pico-muted-color); padding: 0 4px; line-height: 1;
}
@keyframes slide { from { transform: translateY(10px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ───── Overlay ───── */
.overlay {
  position: fixed; inset: 0;
  background: color-mix(in srgb, var(--pico-color) 50%, transparent);
  display: flex; align-items: center; justify-content: center;
  z-index: 200; padding: 16px;
}
.overlay-card {
  width: min(620px, 100%);
  padding: 24px; margin: 0;
  border-radius: var(--na-radius);
  box-shadow: var(--na-shadow);
  display: flex; flex-direction: column; gap: 14px;
}
.overlay-head { display: flex; align-items: center; gap: 14px; }
.overlay-head p { margin: 0; font-weight: 700; color: var(--pico-color); }
.overlay-actions { display: flex; justify-content: flex-end; }

.spinner {
  width: 36px; height: 36px; border-radius: 50%;
  border: 4px solid var(--pico-secondary-background); border-top-color: var(--pico-primary);
  animation: spin .9s linear infinite;
  flex-shrink: 0;
}

/* Log panel stays terminal-styled in both themes for readability */
.log-list {
  list-style: none; padding: 12px; margin: 0;
  background: #0b1220; color: #d6e3ff;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px; line-height: 1.5;
  border-radius: var(--na-radius-sm);
  max-height: 240px; overflow-y: auto;
  border: 1px solid #1f2a44;
}
.log-list li {
  display: grid; grid-template-columns: 64px 60px 1fr; gap: 10px;
  padding: 3px 0; border-bottom: 1px dashed rgba(255, 255, 255, .06);
}
.log-list li:last-child { border-bottom: 0; }
.log-list .ts   { color: #6b8bd0; }
.log-list .lvl  { font-weight: 700; }
.log-list .lvl.info  { color: #7dd3fc; }
.log-list .lvl.ok    { color: #86efac; }
.log-list .lvl.warn  { color: #fde047; }
.log-list .lvl.err   { color: #fca5a5; }
.log-list .lvl.cache { color: #c4b5fd; }
.log-list .msg { color: #e5edff; white-space: pre-wrap; word-break: break-word; }

/* ───── Setup banner ───── */
.setup-banner {
  background: color-mix(in srgb, #f59e0b 18%, var(--pico-background-color));
  color: var(--pico-color);
  border-bottom: 2px solid #f59e0b;
  padding: 12px 20px; font-weight: 600; text-align: center;
}
.setup-banner code {
  background: color-mix(in srgb, var(--pico-color) 10%, transparent);
  padding: 2px 6px; border-radius: 4px;
}

/* ───── Narrow-screen tweaks ───── */
@media (max-width: 560px) {
  .brand-name { font-size: 0.95rem; }
  .nav-btn { padding: 6px 10px; min-height: 36px; }
  .task-row { grid-template-columns: 52px 1fr auto; gap: 10px; padding: 12px; }
  .task-day { padding: 6px; font-size: 0.9rem; }
  .toast-region { right: 8px; bottom: 8px; left: 8px; }
  .toast { min-width: 0; max-width: none; }
  .focus-actions { flex-direction: column; }
  .focus-actions > * { width: 100%; }
}