:root {
  --bg: #14081c;
  --panel: #1e0c2c;
  --card: #251133;
  --text: #ece8f2;
  --muted: #a89bb3;
  --silver: #c9cdd6;
  --line: rgba(201, 205, 214, 0.16);
  --danger: #e07a8a;
  --like: #d4c4e8;
  --shadow: 0 18px 40px rgba(8, 2, 14, 0.45);
  --sans: 'Segoe UI', system-ui, sans-serif;
  --tap: 44px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color-scheme: dark;
  background:
    radial-gradient(1200px 500px at 50% -120px, rgba(84, 32, 118, 0.45), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(1rem, env(safe-area-inset-right));
  padding-top: max(0.7rem, env(safe-area-inset-top));
  background: rgba(20, 8, 28, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  background: #2a0f3d;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--silver);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.icon-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--silver);
  width: var(--tap);
  height: var(--tap);
  border-radius: 12px;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 1.35rem;
  line-height: 1;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.wrap {
  width: min(680px, calc(100% - 1.5rem));
  margin: 1.25rem auto 0;
}

.card,
.post,
.composer {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%), var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.composer {
  padding: 1rem 1.05rem 1.1rem;
  margin-bottom: 1rem;
}

.composer h2,
.settings-card h2,
.settings-admin h3 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--silver);
}

textarea,
input[type='text'],
input[type='password'] {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(8, 2, 14, 0.45);
  color: var(--text);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  font: inherit;
  font-size: 16px;
  resize: vertical;
  min-height: var(--tap);
}

textarea:focus,
input:focus {
  outline: 2px solid rgba(185, 166, 212, 0.45);
  outline-offset: 1px;
}

.composer-row,
.post-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.75rem;
}

.btn-primary,
.btn-ghost,
.btn-text,
.file-btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  border-radius: 10px;
  min-height: var(--tap);
}

.btn-primary {
  background: linear-gradient(180deg, #d7dbe4, #9ea6b5);
  color: #1a0a24;
  font-weight: 700;
  padding: 0.55rem 1rem;
}

.btn-ghost,
.file-btn {
  background: transparent;
  color: var(--silver);
  border: 1px solid var(--line);
  padding: 0.5rem 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary,
.btn-ghost,
.btn-text,
.file-btn,
.icon-btn,
.like-btn {
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(201, 205, 214, 0.18);
}

.btn-text {
  background: transparent;
  color: var(--muted);
  padding: 0.35rem 0.4rem;
  min-height: 36px;
}

.btn-text:hover,
.btn-ghost:hover,
.file-btn:hover {
  color: var(--text);
}

.photo-preview,
.media-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.photo-preview-item,
.media-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #12071a;
}

.photo-preview-item img,
.media-preview-item img,
.media-preview-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-preview-item button,
.media-preview-item button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 999px;
  background: rgba(8, 2, 14, 0.75);
  color: #fff;
  cursor: pointer;
}

.post-photos,
.post-videos {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.post-photos.is-multi {
  grid-template-columns: 1fr 1fr;
}

.post-photos img,
.post-videos video {
  width: 100%;
  max-height: min(70vh, 520px);
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #12071a;
}

.post-photos img {
  cursor: zoom-in;
}

.post-videos video {
  object-fit: contain;
  background: #000;
}

.feed {
  display: grid;
  gap: 0.9rem;
}

.post {
  padding: 1rem 1.05rem 0.85rem;
}

.post-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.post-author {
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--silver);
}

.post-time {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.post-admin {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.15rem;
}

.post-text {
  margin: 0.7rem 0 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  min-height: var(--tap);
  cursor: pointer;
  font: inherit;
}

.like-btn.is-on {
  color: var(--like);
  border-color: rgba(212, 196, 232, 0.45);
  background: rgba(212, 196, 232, 0.08);
}

.comments {
  margin-top: 0.85rem;
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
  display: grid;
  gap: 0.65rem;
}

.comment {
  display: grid;
  gap: 0.15rem;
}

.comment-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.comment-author {
  color: var(--silver);
  font-weight: 650;
}

.comment-text {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.4;
}

.comment-form {
  display: flex;
  gap: 0.5rem;
}

.comment-form input {
  flex: 1;
  min-width: 0;
}

.empty,
.feed-error {
  text-align: center;
  color: var(--muted);
  padding: 2.4rem 1rem;
}

.settings,
.lightbox {
  border: 0;
  padding: 0;
  background: transparent;
  max-width: calc(100% - 1.5rem);
  margin: auto;
}

.settings::backdrop,
.lightbox::backdrop {
  background: rgba(8, 2, 14, 0.78);
}

.settings-card {
  width: min(420px, calc(100vw - 1.5rem));
  max-height: min(88dvh, 720px);
  overflow: auto;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.1rem 1.1rem 1.2rem;
  box-shadow: var(--shadow);
}

.settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.guest-hint {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.field {
  display: grid;
  gap: 0.35rem;
  margin: 0.7rem 0;
}

.field-label {
  color: var(--muted);
  font-size: 0.78rem;
}

.settings-admin {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

.admin-ok {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0 0 0.7rem;
}

.form-msg {
  margin: 0.45rem 0 0;
  font-size: 0.82rem;
  flex: 1 1 100%;
}

.form-msg--ok {
  color: #9ad7b2;
}

.form-msg--err {
  color: var(--danger);
}

.lightbox {
  max-width: min(96vw, 920px);
  width: min(96vw, 920px);
  background: transparent;
}

.lightbox[open] {
  display: grid;
  justify-items: end;
  gap: 0.5rem;
}

.lightbox img {
  width: 100%;
  max-height: 86dvh;
  object-fit: contain;
  border-radius: 12px;
  background: #000;
}

@media (max-width: 640px) {
  .topbar {
    padding: 0.55rem 0.7rem;
    padding-left: max(0.7rem, env(safe-area-inset-left));
    padding-right: max(0.7rem, env(safe-area-inset-right));
    padding-top: max(0.55rem, env(safe-area-inset-top));
  }

  .brand {
    gap: 0.55rem;
  }

  .brand-name {
    font-size: 0.98rem;
    letter-spacing: 0.12em;
  }

  .brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
  }

  .wrap {
    width: calc(100% - 0.9rem);
    margin-top: 0.75rem;
  }

  .card,
  .post,
  .composer,
  .settings-card {
    border-radius: 12px;
  }

  .composer,
  .post {
    padding: 0.85rem 0.8rem 0.8rem;
  }

  .composer-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .composer-row .btn-primary {
    grid-column: 1 / -1;
    width: 100%;
  }

  .composer-row #compose-cancel {
    grid-column: 1 / -1;
    width: 100%;
  }

  .composer-row .file-btn {
    width: 100%;
  }

  .composer-row .form-msg {
    grid-column: 1 / -1;
  }

  .post-photos.is-multi {
    grid-template-columns: 1fr;
  }

  .post-photos.is-multi img,
  .post-photos img,
  .post-videos video {
    max-height: 58vh;
    aspect-ratio: auto;
  }

  .comment-form {
    flex-direction: column;
  }

  .comment-form .btn-ghost {
    width: 100%;
  }

  .settings {
    max-width: calc(100% - 0.7rem);
    width: calc(100% - 0.7rem);
  }

  .settings-card {
    width: 100%;
    max-height: calc(100dvh - 1.2rem);
    padding: 0.95rem 0.85rem 1.1rem;
  }

  .btn-primary,
  .btn-ghost,
  .file-btn {
    width: 100%;
  }

  .login-form .btn-ghost,
  #admin-logged .btn-ghost {
    width: 100%;
  }
}