/* Atomic Design: tokens → base → atoms (a-) → molecules (m-) → organisms (o-) → templates (t-). */

/* ==== Tokens ==== */

:root {
  --bg: #f6f6f4;
  --surface: #fff;
  --text: #1d1d1b;
  --muted: #6b6b66;
  --border: #e2e2dc;
  --accent: #c4302b;
  --accent-text: #fff;
  --danger: #b42318;
  color-scheme: light;
}

/* Dark follows the system unless the user picked a theme (data-theme on <html>, set by theme.js). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161615;
    --surface: #1f1f1d;
    --text: #ececea;
    --muted: #9a9a94;
    --border: #34342f;
    --accent: #e5534b;
    --accent-text: #fff;
    --danger: #f97066;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #161615;
  --surface: #1f1f1d;
  --text: #ececea;
  --muted: #9a9a94;
  --border: #34342f;
  --accent: #e5534b;
  --accent-text: #fff;
  --danger: #f97066;
  color-scheme: dark;
}

/* ==== Base ==== */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

h1 {
  font-size: 1.4rem;
  line-height: 1.1;
  margin: 0;
}

/* ==== Atoms ==== */

/* Text */

.a-text--tagline {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
}

.a-text--lead {
  color: var(--muted);
  margin: 0 0 20px;
}

.a-text--meta {
  color: var(--muted);
  font-size: .82rem;
}

.a-text--count {
  color: var(--muted);
  font-size: .9rem;
  margin-left: auto;
}

/* Fields */

.a-input {
  flex: 1 1 200px;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.a-input--inline {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  padding: 2px 4px;
  border-radius: 5px;
}

.a-input--inline:hover,
.a-input--inline:focus {
  border-color: var(--border);
  background: var(--bg);
}

.a-textarea {
  width: 100%;
  min-height: 64px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  font: .85rem/1.4 ui-monospace, monospace;
}

/* Buttons */

.a-button {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.a-button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.a-button--danger {
  border: 0;
  background: transparent;
  color: var(--danger);
  font-size: 1.1rem;
  padding: 4px 8px;
}

.a-button:disabled {
  opacity: .5;
  cursor: default;
}

/* Media, labels and links */

.a-avatar {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 600;
  overflow: hidden;
}

.a-badge {
  font-size: .72rem;
  padding: 2px 6px;
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.a-link--muted {
  display: block;
  padding: 0 4px;
  color: var(--muted);
  font-size: .82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==== Molecules ==== */

/* Row: inline group of fields and buttons. */

.m-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.m-row--center {
  justify-content: center;
}

.m-row--toolbar {
  margin-bottom: 8px;
}

/* Brand: logo, title and tagline. */

.m-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.m-brand__logo {
  flex: none;
}

.m-brand__theme {
  margin-left: auto;
}

/* Item: avatar, info and actions; used by search results and subscriptions. */

.m-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px 4px;
  border-bottom: 1px solid var(--border);
}

.m-item:last-child {
  border-bottom: 0;
}

.m-item__info {
  flex: 1;
  min-width: 0;
}

.m-item__title {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m-item--empty {
  color: var(--muted);
  text-align: center;
  padding: 24px 0;
}

/* Search: search field with a clear button, shown only while it has text. */

.m-search {
  position: relative;
  display: flex;
  flex: 1 1 200px;
  min-width: 0;
}

.m-search__input {
  padding-right: 32px;
}

.m-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

.m-search__clear {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  padding: 2px 6px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  line-height: 1.2;
  cursor: pointer;
}

.m-search__clear:hover {
  color: var(--text);
}

.m-search__input:placeholder-shown+.m-search__clear {
  display: none;
}

/* Disclosure: collapsible panel with a hint. */

.m-disclosure {
  margin-top: 10px;
  color: var(--muted);
  font-size: .9rem;
}

.m-disclosure>.m-row,
.m-disclosure>.a-textarea {
  margin-top: 8px;
}

.m-disclosure__summary {
  cursor: pointer;
}

.m-disclosure__hint {
  margin: 8px 0 0;
}

.m-disclosure__hint a {
  color: var(--accent);
}

/* Toast */

.m-toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  border-left: 4px solid #3fb950;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
  font-size: .93rem;
  pointer-events: auto;
  animation: toast-in .2s ease-out;
  transition: opacity .3s, transform .3s;
}

.m-toast--error {
  border-left-color: var(--danger);
}

.m-toast--leaving {
  opacity: 0;
  transform: translateX(16px);
}

.m-toast__message {
  flex: 1;
  overflow-wrap: anywhere;
}

.m-toast__close {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0 2px;
  opacity: .7;
  font-size: 1rem;
  line-height: 1.2;
}

.m-toast__close:hover {
  opacity: 1;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .m-toast {
    animation: none;
    transition: none;
  }
}

/* ==== Organisms ==== */

/* Card: panel holding a section of the app. */

.o-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 14px;
}

/* Dropzone: card that accepts an export file. */

.o-dropzone {
  border-style: dashed;
  text-align: center;
  color: var(--muted);
}

.o-dropzone--over {
  border-color: var(--accent);
  color: var(--text);
}

/* Lists: search results and subscriptions. */

.o-results,
.o-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.o-results {
  margin-top: 8px;
}

.o-results:empty {
  display: none;
}

/* Toast stack */

.o-toasts {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

@media (max-width: 520px) {
  .o-toasts {
    top: auto;
    bottom: 16px;
    right: 16px;
  }
}

/* Footer */

.o-footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
}

.o-footer a {
  color: inherit;
}

.o-footer a:hover {
  color: var(--accent);
}

/* ==== Templates ==== */

.t-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}