/* ============================================================
   暗房 DARKROOM V2 — 黑 / 红 / 档案 / 显影
   ============================================================ */

:root {
  --bg: #070707;
  --panel: #0c0c0c;
  --ink: #d7d2c9;
  --ink-dim: #6e6a63;
  --red: #9a1808;          /* 安全灯红（暗红，高光上限） */
  --red-dim: #5c110a;
  --line: rgba(255, 255, 255, 0.13);
  --font: "Helvetica Neue", Helvetica, Arial, "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

button { background: none; border: none; cursor: pointer; color: inherit; font-family: inherit; }

/* ---------------- 顶部 MEDIA 栏 ---------------- */

#topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: baseline;
  gap: 28px;
  padding: 14px 20px 12px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.brand h1 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.brand .en { color: var(--red); letter-spacing: 0.14em; }
.brand .sub {
  display: block;
  margin-top: 2px;
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
  white-space: nowrap;
}

#mediaBar {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 18px;
  flex: 1;
}

#mediaBar button {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
}
#mediaBar button:hover { color: var(--ink); }
#mediaBar button.active { color: var(--red); border-bottom-color: var(--red); }
#mediaBar button .n { font-size: 9px; color: var(--ink-dim); margin-left: 3px; }
#mediaBar button.uncat { opacity: 0.55; font-style: italic; }

.counter {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  white-space: nowrap;
}
.counter b { color: var(--red); font-weight: 400; }

/* ---------------- 左侧 DARKROOM AS ? ---------------- */

#layout { display: flex; align-items: flex-start; }

#sidebar {
  position: sticky;
  top: 62px;
  width: 148px;
  flex: none;
  padding: 18px 0 18px 20px;
  border-right: 1px solid var(--line);
  min-height: calc(100vh - 62px);
  display: flex;
  flex-direction: column;
}

.side-title {
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 16px;
}

#asBar { display: flex; flex-direction: column; gap: 2px; }

#asBar button {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  padding: 5px 0 5px 10px;
  border-left: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 6px;
}
#asBar button .zh { font-size: 9px; opacity: 0.6; }
#asBar button:hover { color: var(--ink); }
#asBar button.active { color: var(--red); border-left-color: var(--red); }
#asBar button.uncat { opacity: 0.5; font-style: italic; }

.side-foot {
  margin-top: auto;
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  line-height: 1.9;
}
.side-foot .hint { color: var(--red-dim); }

/* ---------------- IMAGE WALL：暗房照片墙 ---------------- */

body {
  /* 极微弱的红色环境光：红安全灯从上方笼罩整面墙 */
  background:
    radial-gradient(ellipse 120% 60% at 50% -10%, rgba(217, 30, 20, 0.05), transparent 60%),
    #060404;
  background-attachment: fixed;
}

#wall {
  flex: 1;
  position: relative;
  overflow: hidden;
  padding: 0;
}

/* 定位壳：负责位置与旋转（transform 在 .pin，hover 缩放在 .photo，互不干扰） */
.pin {
  position: absolute;
  cursor: pointer;
  transition: filter 0.3s ease;
}

/* 相纸：白纸在红安全灯下呈深红黑色 */
.photo {
  position: relative;
  background: #381310;                  /* 暗红相纸 */
  padding: 4.5% 4.5% 7%;                /* 相纸边框，下缘略厚（冲印照片） */
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.65),
              0 1px 3px rgba(0, 0, 0, 0.8);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.imgwrap {
  background: #170a08;                  /* 未加载时接近黑纸 */
  line-height: 0;
  transition: background 0.6s ease;
}

.imgwrap.on { background: var(--red); } /* 加载完成 = 显影：黑红双色调浮现 */

.imgwrap img {
  display: block;
  width: 100%;
  filter: grayscale(1) contrast(1.15) brightness(0.95);
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.imgwrap.on img { opacity: 1; }

/* hover：从墙上「挑选」一张——提亮、微放大、层级提升，不改变随机位置 */
.pin:hover { z-index: 40 !important; }
.pin:hover .photo {
  transform: scale(1.07);
  background: #4a1a14;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.8),
              0 2px 6px rgba(0, 0, 0, 0.7);
}
.pin:hover .imgwrap.on img {
  filter: grayscale(1) contrast(1.15) brightness(1.15);
}

.cap {
  position: absolute;
  left: 0; right: 0; bottom: 1.2%;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: rgba(215, 210, 201, 0.85);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.cap .t { color: rgba(215, 210, 201, 0.5); margin-left: 6px; }
.pin:hover .cap { opacity: 1; }

/* 缺图占位：同样的相纸形态，纸面待显影 */
.photo.pending .ph {
  aspect-ratio: 4 / 5;
  background: #120808;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.photo.pending .pid {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red-dim);
}
.photo.pending .pt {
  font-size: 8px;
  letter-spacing: 0.3em;
  color: var(--ink-dim);
}

.wall-empty {
  padding: 80px 40px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-dim);
}

/* ---------------- 详情态 / 显影 ---------------- */

#detail {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(4, 4, 4, 0.98);
  display: flex;
  flex-direction: column;
}

#detail[hidden] { display: none; }

#detailBack {
  align-self: flex-start;
  margin: 16px 20px 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  padding: 8px 0;
}
#detailBack:hover { color: var(--red); }

.detail-body {
  flex: 1;
  display: flex;
  min-height: 0;
  padding: 8px 20px 20px;
  gap: 0;
}

.detail-image {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.develop-stack { position: relative; max-width: 100%; max-height: 100%; display: flex; }
.develop-stack img { max-width: 100%; max-height: calc(100vh - 160px); object-fit: contain; display: block; }

.develop-stack .duo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  background: var(--red);
  filter: grayscale(1) contrast(1.12) brightness(0.92);
  mix-blend-mode: multiply;
}
/* 显影：黑红渐隐，原彩浮现 */
.develop-stack .color { opacity: 0; transition: opacity 1.4s ease 0.15s; }
#detail.developed .develop-stack .color { opacity: 1; }
#detail.developed .develop-stack .duo { opacity: 0; transition: opacity 1.4s ease 0.15s; }

.detail-thumbs { display: flex; gap: 4px; }
.detail-thumbs img { height: 40px; filter: grayscale(1) brightness(0.8); cursor: default; }

.detail-info {
  width: 320px;
  flex: none;
  border-left: 1px solid var(--line);
  padding: 4px 0 0 22px;
  overflow-y: auto;
}

.detail-info dl > div { margin-bottom: 14px; }
.detail-info dt {
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--red);
  margin-bottom: 3px;
}
.detail-info dd { font-size: 13px; line-height: 1.7; color: var(--ink); word-break: break-word; }
.detail-info dd.dim { color: var(--ink-dim); }
.detail-info a { color: var(--ink); text-underline-offset: 3px; }

.detail-info .tag { font-size: 11px; color: var(--ink-dim); margin-right: 10px; white-space: nowrap; }
.detail-info .tag.cat { color: var(--ink); }

.review-flag {
  margin-top: 18px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--red-dim);
}

/* ---------------- 响应式 ---------------- */

@media (max-width: 900px) {
  #sidebar { width: 118px; padding-left: 14px; }
  #topbar { gap: 16px; flex-wrap: wrap; }
}

@media (max-width: 640px) {
  #layout { flex-direction: column; }
  #sidebar {
    position: static;
    width: 100%;
    min-height: 0;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 10px 16px;
  }
  .side-title { display: none; }
  #asBar { flex-direction: row; flex-wrap: wrap; gap: 4px 14px; }
  #asBar button { border-left: none; border-bottom: 1px solid transparent; padding: 3px 0; }
  #asBar button.active { border-bottom-color: var(--red); }
  .side-foot { display: none; }
  .detail-body { flex-direction: column; overflow-y: auto; }
  .detail-info { width: 100%; border-left: none; border-top: 1px solid var(--line); padding: 16px 0 0; }
  .develop-stack img { max-height: 60vh; }
}

@media (prefers-reduced-motion: reduce) {
  .develop-stack .color, #detail.developed .develop-stack .duo { transition: none; }
  .photo, .pin, .imgwrap img { transition: none; }
}