:root {
  color-scheme: light dark;
  --bg: #f4f2ec;
  --surface: #ffffff;
  --surface-2: #ebe8df;
  --text: #1f1d18;
  --muted: #6a665c;
  --line: #dcd8cc;
  --accent: #0f766e;
  --accent-strong: #0b5c56;
  --on-accent: #ffffff;
  --danger: #b42318;
  --good: #1a7f43;
  --radius: 16px;
  --shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 8px 24px rgb(0 0 0 / 8%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121416;
    --surface: #1c1f23;
    --surface-2: #262a30;
    --text: #ecebe6;
    --muted: #9c988d;
    --line: #30353c;
    --accent: #2bb5a6;
    --accent-strong: #5fd2c5;
    --on-accent: #04211e;
    --danger: #ff8478;
    --good: #5fcf8b;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 40%);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

h2 {
  font-size: 1.25rem;
}

h3 {
  font-size: 1rem;
}

h4 {
  font-size: 0.95rem;
}

.muted {
  color: var(--muted);
}

/* ---- Controls ---- */

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.55;
  cursor: default;
}

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

button.primary:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}

input:not([type="checkbox"]),
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-weight: 400;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
}

.stack {
  display: grid;
  gap: 12px;
}

.form-note {
  font-size: 0.9rem;
}

.form-note.bad {
  color: var(--danger);
}

.form-note.good {
  color: var(--good);
}

/* ---- Login ---- */

.login-page {
  display: grid;
  place-items: center;
  padding: 16px;
}

.login-card {
  display: grid;
  gap: 12px;
  justify-items: center;
  width: min(380px, 100%);
  padding: 32px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}

.login-card form {
  display: grid;
  gap: 14px;
  width: 100%;
  margin-top: 8px;
  text-align: left;
}

.login-card button {
  padding: 11px;
}

/* ---- App shell ---- */

.shell {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 820px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 16px;
  padding-top: max(10px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: inherit;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

.actions {
  display: flex;
  gap: 6px;
}

.actions button {
  padding: 6px 12px;
  font-size: 0.9rem;
  white-space: nowrap;
}

/* ---- Chat ---- */

.chat {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  overscroll-behavior: contain;
}

.welcome {
  display: grid;
  gap: 12px;
  justify-items: center;
  max-width: 460px;
  margin: 8vh auto 0;
  text-align: center;
}

.welcome h1 {
  font-size: 1.5rem;
  line-height: 1.25;
}

.suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bubble {
  max-width: min(85%, 600px);
  padding: 10px 14px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.bubble.user {
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  background: var(--accent);
  color: var(--on-accent);
}

.bubble.assistant {
  align-self: flex-start;
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  background: var(--surface);
}

.status {
  display: flex;
  align-items: baseline;
  gap: 8px;
  align-self: flex-start;
  max-width: 100%;
  padding: 0 4px;
  color: var(--muted);
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}

.status::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}

.status.download::before {
  background: var(--good);
}

.status.error {
  color: var(--danger);
}

.status.error::before {
  background: var(--danger);
}

.working {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 0 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

.dots {
  display: inline-flex;
  gap: 4px;
}

.dots i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.2s infinite ease-in-out;
}

.dots i:nth-child(2) {
  animation-delay: 0.15s;
}

.dots i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes pulse {
  0%,
  80%,
  100% {
    opacity: 0.25;
  }
  40% {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dots i {
    animation: none;
  }
}

.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
}

.composer textarea {
  flex: 1;
  max-height: 160px;
  border-radius: 20px;
  resize: none;
  overflow-y: hidden;
}

.composer button {
  padding: 10px 18px;
}

/* ---- Dialogs ---- */

dialog {
  width: min(560px, calc(100vw - 24px));
  max-height: calc(100dvh - 24px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgb(0 0 0 / 45%);
}

.sheet {
  display: grid;
  gap: 16px;
  padding: 20px;
}

.sheet section {
  display: grid;
  gap: 12px;
}

.sheet-head,
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.close {
  width: 36px;
  height: 36px;
  padding: 0;
  font-size: 1.3rem;
  line-height: 1;
}

.sheet ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.downloads .download {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.dl-name {
  font-weight: 600;
  overflow-wrap: anywhere;
}

.dl-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.downloads .download.finished .dl-meta {
  color: var(--good);
}

.downloads .download.error .dl-meta {
  color: var(--danger);
}

progress {
  width: 100%;
  height: 8px;
  accent-color: var(--accent);
}

.status-list li {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border-left: 4px solid var(--muted);
  border-radius: 6px;
  background: var(--surface-2);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.status-list li.ok {
  border-left-color: var(--good);
}

.status-list li.bad {
  border-left-color: var(--danger);
}

.user-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.user-row .role {
  margin-left: 8px;
  color: var(--muted);
  font-size: 0.85rem;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.row-actions button {
  padding: 5px 10px;
  font-size: 0.85rem;
}

.row-actions input {
  width: 180px;
  padding: 6px 10px;
}

#user-form,
#library-form {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs button {
  padding: 8px 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: none;
  color: var(--muted);
  white-space: nowrap;
}

.tabs button[aria-selected="true"] {
  border-bottom-color: var(--accent);
  color: var(--text);
  font-weight: 600;
}

@media (max-width: 480px) {
  .tabs {
    gap: 0;
  }

  .tabs button {
    padding: 8px 7px;
    font-size: 0.85rem;
  }
}

.library {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.library-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
}

.library-head .muted,
.small {
  font-size: 0.85rem;
}

code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}

.folder-status {
  color: var(--muted);
  font-size: 0.85rem;
}

.folder-status.ok {
  color: var(--good);
}

.folder-status.bad {
  color: var(--danger);
}

.presets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}

.presets button {
  padding: 4px 10px;
  font-size: 0.85rem;
}

dialog textarea {
  resize: vertical;
}

.notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  padding: 10px 14px;
  border: 1px solid var(--danger);
  border-radius: 12px;
  background: var(--surface);
  font-size: 0.9rem;
}

.notice button {
  padding: 6px 12px;
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  .brand span {
    display: none;
  }

  .actions button {
    padding: 6px 10px;
    font-size: 0.85rem;
  }
}

@media (max-width: 380px) {
  .topbar {
    padding-inline: 10px;
  }

  .actions {
    gap: 4px;
  }

  .actions button {
    padding: 6px 8px;
    font-size: 0.8rem;
  }
}