/* 我的空间 — 样式（自动深浅色） */
:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #1c2330;
  --dim: #6b7280;
  --border: #e2e5ea;
  --accent: #4f6ef7;
  --accent-soft: rgba(79, 110, 247, 0.12);
  --danger: #e5484d;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --panel: #1e2127;
    --text: #e7eaf0;
    --dim: #9aa1ad;
    --border: #2c3038;
    --accent: #6d8bff;
    --accent-soft: rgba(109, 139, 255, 0.16);
    --danger: #ff6369;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 52px;
}

.logo { color: var(--accent); font-size: 18px; }

h1 {
  font-size: 16px;
  margin: 0;
  font-weight: 700;
}

.spacer { flex: 1; }

#session-area { display: flex; align-items: center; gap: 8px; }

.session-hint { color: var(--dim); font-size: 12px; }

/* ---------- 卡片与按钮 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

.btn-primary {
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 13.5px;
  padding: 8px 22px;
  border-radius: 9px;
  cursor: pointer;
}

.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-ghost {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  padding: 8px 20px;
  border-radius: 9px;
  cursor: pointer;
}

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

.link-btn {
  border: none;
  background: none;
  color: var(--dim);
  font-size: 12.5px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
}

.link-btn:hover { background: var(--accent-soft); color: var(--accent); }

.btn-block { width: 100%; margin-top: 4px; }

/* ---------- 发布区 ---------- */
.composer { margin: 18px 0 14px; }

.composer textarea {
  width: 100%;
  border: none;
  resize: vertical;
  min-height: 64px;
  background: transparent;
  color: var(--text);
  font: inherit;
  outline: none;
  padding: 4px 2px 10px;
}

.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  color: var(--dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: border-color 0.15s, color 0.15s;
}

.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  color: var(--accent);
}

.dz-icon { font-size: 18px; font-weight: 700; }
.dz-text { font-size: 13px; }

.file-list { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }

.file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--dim);
  padding: 4px 8px;
  background: var(--bg);
  border-radius: 7px;
}

.file-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }

.file-item .rm { border: none; background: none; color: var(--dim); cursor: pointer; padding: 0 4px; }
.file-item .rm:hover { color: var(--danger); }

.progress { height: 6px; background: var(--bg); border-radius: 999px; margin-top: 10px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: var(--accent); border-radius: 999px; transition: width 0.15s; }

.composer-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 10px;
}

.error-text { color: var(--danger); font-size: 12.5px; }

/* ---------- 内容流 ---------- */
.feed { display: flex; flex-direction: column; gap: 14px; padding-bottom: 24px; }

.post { overflow: hidden; }

.post-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.post-time { color: var(--dim); font-size: 12px; flex: 1; }

.post-text {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0 0 10px;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 6px;
}

.media-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: zoom-in;
  display: block;
}

.media-video video, .media-audio audio {
  width: 100%;
  border-radius: 8px;
  display: block;
}

.media-video { margin-bottom: 8px; }

.file-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 8px 12px;
  margin-bottom: 6px;
  font-size: 13px;
}

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

.file-chip .icon { color: var(--accent); }
.file-chip .fname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-chip .fsize { color: var(--dim); font-size: 12px; }

.feed-foot { text-align: center; padding-bottom: 40px; }

.empty { color: var(--dim); text-align: center; padding: 30px 0; }

/* ---------- 登录浮层 ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 16, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.login-card {
  width: min(340px, calc(100vw - 40px));
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}

.login-card h2 { margin: 0 0 4px; font-size: 17px; }
.login-hint { color: var(--dim); font-size: 13px; margin: 0 0 14px; }

.login-card input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  padding: 9px 12px;
  outline: none;
}

.login-card input:focus { border-color: var(--accent); }

#login-error { min-height: 18px; margin: 6px 0; }

.hidden { display: none !important; }