/* 牧野云相册 —— 简洁风 + 明暗双主题（白色 / 黑色，可切换，跟随系统默认） */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f6f7;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #8a8a90;
  --border: #ececee;
  --brand: #0f8a4d;
  --brand-soft: #e9f6ef;
  --danger: #d4472f;
  --danger-soft: #fdf1ee;
  --radius: 12px;
}
body.dark {
  --bg: #101012;
  --bg-soft: #17171a;
  --card: #17171a;
  --text: #e8e8ea;
  --muted: #8f8f96;
  --border: #26262b;
  --brand: #2fb56d;
  --brand-soft: #12291c;
  --danger: #e8654e;
  --danger-soft: #2c1713;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.15s, color 0.15s;
}
button { font: inherit; cursor: pointer; }
input, textarea { font: inherit; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.brand { font-size: 17px; font-weight: 600; color: var(--text); text-decoration: none; }
.topbar-right { display: flex; gap: 10px; align-items: center; }
.admin-tag { font-size: 12px; color: var(--brand); background: var(--brand-soft); padding: 4px 10px; border-radius: 999px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border: 1px solid transparent; border-radius: var(--radius);
  background: transparent; color: var(--muted);
  transition: background 0.12s, color 0.12s;
}
.btn:hover { background: var(--bg-soft); color: var(--text); }
.btn.ghost { border-color: var(--border); }
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { color: #fff; filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.small { padding: 5px 10px; font-size: 13px; border-radius: 9px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- 主体布局 ---------- */
#view { max-width: 1000px; margin: 0 auto; padding: 28px 20px 70px; }
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 20px;
}
.page-head h1 { font-size: 21px; font-weight: 600; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- 相册网格 ---------- */
.album-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.album-card {
  position: relative;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  transition: border-color 0.12s;
}
.album-card:hover { border-color: var(--muted); }
.album-card .lock {
  position: absolute; top: 16px; right: 16px;
  font-size: 12px; color: var(--muted);
  padding: 3px 9px; border-radius: 999px;
  background: var(--bg-soft);
}
.album-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; padding-right: 60px; }
.album-card .desc {
  font-size: 13px; color: var(--muted); margin-bottom: 14px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 20px;
}
.album-card .meta { font-size: 12px; color: var(--muted); }
.album-card .ops {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border);
}

/* ---------- 照片网格 ---------- */
.photo-grid {
  display: grid; gap: 8px;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}
.photo-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius); overflow: hidden;
  background: var(--bg-soft);
  cursor: zoom-in;
}
.photo-item img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.15s;
}
.photo-item:hover img { transform: scale(1.03); }
.photo-item .del {
  position: absolute; top: 6px; right: 6px; display: none;
  width: 28px; height: 28px; line-height: 26px; text-align: center;
  border: none; border-radius: 8px;
  background: rgba(0, 0, 0, 0.55); color: #fff; font-size: 14px;
}
.photo-item:hover .del { display: block; }

/* ---------- 大图查看器（恒为黑底，与主题无关） ---------- */
.viewer {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0, 0, 0, 0.94);
  display: flex; align-items: center; justify-content: center;
}
.viewer img { max-width: 100vw; max-height: 82vh; object-fit: contain; }
.viewer .v-bar {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 14px;
}
.viewer .v-name {
  position: absolute; top: 14px; left: 16px; right: 16px;
  color: #ddd; font-size: 13px; text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.viewer .v-btn {
  padding: 10px 18px;
  border: none; border-radius: 10px;
  background: rgba(255, 255, 255, 0.16); color: #fff; font-size: 15px;
}
.viewer .v-btn:hover { background: rgba(255, 255, 255, 0.28); }
.viewer .v-close { position: absolute; top: 12px; right: 14px; }
.viewer .v-prev, .viewer .v-next { position: absolute; top: 50%; transform: translateY(-50%); }
.viewer .v-prev { left: 14px; }
.viewer .v-next { right: 14px; }

/* ---------- 模态框 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(0, 0, 0, 0.45);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.modal {
  width: 100%; max-width: 380px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.modal h2 { font-size: 17px; margin-bottom: 16px; }
.modal .field { margin-bottom: 12px; }
.modal label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.modal input, .modal textarea {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg-soft); color: var(--text); outline: none;
}
.modal input:focus, .modal textarea:focus { border-color: var(--brand); }
.modal input.pw { letter-spacing: 8px; font-size: 20px; text-align: center; }
.modal .hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }
.modal .warn {
  font-size: 13px; color: var(--danger); background: var(--danger-soft);
  border-radius: 8px; padding: 10px 12px; margin-bottom: 12px;
}

/* ---------- 上传进度 ---------- */
.upload-panel {
  margin-top: 14px; padding: 12px 14px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; color: var(--muted);
}
.upload-panel .bar {
  height: 5px; border-radius: 999px; background: var(--bg-soft); margin-top: 8px; overflow: hidden;
}
.upload-panel .bar i {
  display: block; height: 100%; width: 0;
  background: var(--brand); border-radius: 999px; transition: width 0.2s;
}

/* ---------- 空态 / toast ---------- */
.empty { text-align: center; color: var(--muted); padding: 70px 0; font-size: 14px; }
#toast-root {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none;
}
.toast {
  padding: 10px 18px; border-radius: 10px;
  background: #26262b; color: #fff; font-size: 14px;
  animation: toast-in 0.18s ease;
}
.toast.err { background: #b3361f; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; } }

/* ---------- 手机适配 ---------- */
@media (max-width: 640px) {
  .topbar { padding: 12px 14px; }
  #view { padding: 18px 14px 60px; }
  .album-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .album-card { padding: 14px; }
  .album-card h3 { padding-right: 0; }
  .photo-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .page-head h1 { font-size: 18px; }
  .viewer .v-prev { left: 6px; }
  .viewer .v-next { right: 6px; }
}
@media (max-width: 380px) {
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
}