:root {
  --bg: #f8f1e6;
  --panel: rgba(255, 249, 241, 0.92);
  --panel-strong: #fffaf2;
  --line: rgba(92, 44, 21, 0.12);
  --text: #28140b;
  --muted: #775340;
  --accent: #da251d;
  --accent-deep: #8f0f0a;
  --gold: #ffb347;
  --shadow: 0 20px 40px rgba(105, 36, 17, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Sans GB", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 179, 71, 0.35), transparent 30%),
    radial-gradient(circle at top right, rgba(218, 37, 29, 0.18), transparent 28%),
    linear-gradient(180deg, #fff8f0 0%, #f7ede0 100%);
}

.page-shell {
  max-width: 1480px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 28px;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 320px;
  gap: 20px;
}

.left-rail,
.right-rail,
.feed-column {
  min-width: 0;
}

.brand-card,
.card,
.post-card,
.feed-header {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.brand-card,
.card,
.feed-header {
  border-radius: 26px;
  padding: 20px;
}

.brand-card {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
}

.brand-icon {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent-deep);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 32px;
  line-height: 1;
}

h2 {
  font-size: 22px;
  line-height: 1.1;
}

.muted {
  color: var(--muted);
  line-height: 1.5;
}

.card {
  margin-bottom: 20px;
}

.card-title-row,
.feed-header,
.name-row,
.meta-row,
.post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pill,
.status-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.pill {
  background: rgba(255, 179, 71, 0.22);
  color: var(--accent-deep);
}

.status-chip {
  background: var(--accent);
  color: #fff;
}

label {
  display: block;
  margin-top: 14px;
}

label span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 700;
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(92, 44, 21, 0.15);
  border-radius: 18px;
  padding: 14px 16px;
  background: var(--panel-strong);
  color: var(--text);
}

textarea {
  resize: vertical;
}

.primary-btn,
.comment-form button,
.follow-btn {
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff5f3d 100%);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.primary-btn {
  margin-top: 16px;
  width: 100%;
  padding: 14px 18px;
}

.install-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.install-copy {
  margin-top: 10px;
}

.feed-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 18px;
}

.collision-board {
  display: none;
  margin-top: 18px;
  margin-bottom: 4px;
}

.collision-board.visible {
  display: block;
}

.collision-header {
  margin-bottom: 14px;
}

.collision-list {
  display: grid;
  gap: 14px;
}

.collision-card {
  background: linear-gradient(135deg, rgba(255, 179, 71, 0.16), rgba(218, 37, 29, 0.08));
  border: 1px solid rgba(218, 37, 29, 0.16);
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.collision-title-row,
.collision-participants {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.collision-summary {
  margin: 10px 0 14px;
  color: var(--muted);
  line-height: 1.6;
}

.collision-time {
  color: var(--muted);
  font-size: 13px;
}

.collision-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
  text-decoration: none;
  border: 1px solid rgba(92, 44, 21, 0.08);
}

.collision-chip img {
  width: 24px;
  height: 24px;
  object-fit: cover;
  border-radius: 999px;
}

.post-card {
  border-radius: 28px;
  padding: 22px;
}

.feature-hidden,
.feed-mode-like-only .composer-card,
.feed-mode-like-only .comments,
.feed-mode-like-only .comment-form,
.feed-mode-like-only .comments-count,
.feed-mode-like-only .follow-btn {
  display: none !important;
}

.post-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.avatar-shell {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--gold) 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.28);
  overflow: hidden;
  position: relative;
}

.avatar-text {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.avatar-image.visible {
  display: block;
}

.avatar-image.visible + .avatar-text {
  display: none;
}

.author-handle,
.meta-row,
.stat-item,
.comment-meta {
  color: var(--muted);
  font-size: 13px;
}

.post-body {
  margin: 16px 0 14px;
  line-height: 1.7;
  font-size: 16px;
}

.collision-inline {
  display: none;
  align-items: center;
  gap: 10px;
  margin: -2px 0 14px;
}

.collision-inline.visible {
  display: flex;
}

.collision-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(218, 37, 29, 0.12);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.collision-copy {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.post-image {
  width: 100%;
  border-radius: 22px;
  display: none;
  margin-bottom: 14px;
  object-fit: cover;
  max-height: 360px;
}

.post-audio {
  width: 100%;
  display: none;
  margin: 0 0 14px;
}

.emoji-badge {
  width: 88px;
  height: 88px;
  object-fit: contain;
  display: none;
  margin-bottom: 14px;
  filter: drop-shadow(0 12px 20px rgba(143, 15, 10, 0.16));
}

.emoji-badge.visible {
  display: block;
}

.post-image.visible {
  display: block;
}

.post-audio.visible {
  display: block;
}

.like-btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 18px;
  background: rgba(218, 37, 29, 0.08);
  color: var(--accent-deep);
  font-weight: 800;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, color 140ms ease;
}

.like-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  background: rgba(218, 37, 29, 0.14);
}

.like-btn.active {
  background: linear-gradient(135deg, var(--accent) 0%, #ff5f3d 100%);
  color: #fff;
}

.like-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.comments {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comment-item {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.comment-body {
  margin-top: 4px;
  line-height: 1.6;
}

.comment-form {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.comment-form input {
  flex: 1;
}

.comment-form button,
.follow-btn {
  min-width: 88px;
  padding: 0 14px;
}

.profile-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.profile-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.54);
}

.profile-avatar-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.profile-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.profile-bio {
  margin-top: 10px;
  line-height: 1.6;
  color: var(--muted);
}

.profile-stats {
  margin-top: 12px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.self-profile-head {
  display: flex;
  gap: 14px;
}

.self-profile-copy p + p {
  margin-top: 8px;
}

@media (max-width: 1100px) {
  .page-shell {
    grid-template-columns: 1fr;
  }
}