:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --border: #dbdbdb;
  --text: #262626;
  --muted: #8e8e8e;
  --accent: #405de6;
  --danger: #ed4956;
  --radius: 12px;
  --gap: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #121212;
    --border: #262626;
    --text: #fafafa;
    --muted: #a8a8a8;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-family: "Snell Roundhand", "Segoe Script", cursive;
  font-size: 1.5rem;
  color: var(--text);
}

.content {
  max-width: 935px;
  margin: 0 auto;
  padding: var(--gap);
}

.feed-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--gap);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 8px;
}

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

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

/* Feed grid */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--gap);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.card-meta {
  margin: 0;
  padding: 8px 10px;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Single post */

.post {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--gap);
}

.post-image {
  /* Fit the whole photo inside the window while leaving room for at least
     three lines of caption underneath. The reserved space covers the sticky
     topbar plus the page and card padding, so the caption stays readable
     without scrolling. */
  width: auto;
  max-width: 100%;
  max-height: calc(100vh - 16rem);
  max-height: calc(100dvh - 16rem);
  margin: 0 auto;
}

.caption {
  margin: var(--gap) 0;
}

/* Comments */

.comments {
  margin-top: var(--gap);
  padding-top: var(--gap);
  border-top: 1px solid var(--border);
}

.comment {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.comment:last-child {
  border-bottom: none;
}

.comment-author {
  margin: 0;
  font-weight: 600;
  font-size: 0.9rem;
}

.comment-body {
  margin: 2px 0;
}

.comment-meta {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: var(--gap);
}

.comment-form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

/* Reactions */

.reactions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--gap);
}

.reaction {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

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

.reaction.is-active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.reaction-emoji {
  font-size: 1.05rem;
}

.reaction-count {
  font-size: 0.8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* Auth pages */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--gap);
}

.auth-card {
  width: 100%;
  max-width: 380px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: var(--gap);
  text-align: left;
}

.auth-form label {
  font-size: 0.85rem;
  font-weight: 600;
}

.auth-form input {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.auth-form .btn {
  margin-top: 8px;
}

/* Buttons */

.btn {
  padding: 9px 16px;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.inline-form {
  display: inline;
  margin: 0;
}

.admin-list {
  padding-left: 18px;
}

.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;
}
/* Admin */

.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  margin-bottom: var(--gap);
}

.admin-head h1 {
  margin: 0;
  font-size: 1.25rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.admin-table th,
.admin-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

.admin-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
}

.admin-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-preview {
  max-width: 320px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.post-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 520px;
  padding: var(--gap);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.post-form label {
  font-size: 0.85rem;
  font-weight: 600;
}

.post-form input[type="file"],
.post-form textarea {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.post-form .btn {
  margin-top: 8px;
  align-self: flex-start;
}

.btn-link-danger {
  padding: 0;
  border: none;
  background: none;
  color: var(--danger);
  font: inherit;
  cursor: pointer;
}

.btn-link-danger:hover {
  text-decoration: underline;
}

.pager {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: var(--gap);
}

.admin-head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.admin-path {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  word-break: break-all;
}