/* OBS 团播美颜 LUT 生成器 - 胶片风格主题 */

:root {
  --bg: #16110c;
  --panel: #1e1712;
  --card: #251d15;
  --border: #3b2f22;
  --text: #e9dcc3;
  --muted: #a3927a;
  --accent: #e0a63f;
  --accent2: #c15f33;
  --ok: #8fbf6f;
  --err: #d96c5b;
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", Georgia, serif;
  --font-mono: "Consolas", "Courier New", monospace;
}

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

/* ---------- 全屏胶片颗粒 ---------- */
body {
  background:
    radial-gradient(ellipse at 50% -10%, #201810 0%, var(--bg) 60%);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  opacity: 0.07;
  pointer-events: none;
  z-index: 9999;
}

/* ---------- 顶部胶片齿孔条 ---------- */
.film-strip {
  height: 18px;
  background: #0b0906;
  border-bottom: 1px solid #000;
  background-image: radial-gradient(circle 4px at 14px 9px, #16110c 3px, transparent 3.2px);
  background-size: 30px 18px;
  background-repeat: repeat-x;
}

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .45);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 21px;
  letter-spacing: 3px;
  background: linear-gradient(135deg, #f5c96a, var(--accent) 45%, var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 10px rgba(224, 166, 63, .35));
  user-select: none;
}
.logo svg { filter: drop-shadow(0 0 8px rgba(224, 166, 63, .45)); }
.logo-img {
  width: auto;
  height: 34px;
  border-radius: 8px;
  filter: drop-shadow(0 0 10px rgba(224, 166, 63, .35));
}
.brand h1 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 2px;
}
.sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
  letter-spacing: 2px;
}

.status-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
.rec {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--err);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 1px;
}
.rec .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--err);
  animation: blink 1.2s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }
.tc {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}
.status {
  font-size: 12px;
  color: var(--muted);
  background: #0d0a08;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 3px;
  white-space: nowrap;
  font-family: var(--font-mono);
  letter-spacing: .5px;
}
.status.ok { color: var(--ok); border-color: rgba(143, 191, 111, .45); }
.status.warn { color: var(--accent); border-color: rgba(224, 166, 63, .45); }

/* ---------- 布局 ---------- */
main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 500px;
  gap: 16px;
  max-width: 1560px;
  margin: 0 auto;
  padding: 18px 24px 32px;
}
@media (max-width: 1080px) {
  main { grid-template-columns: 1fr; }
}
.panel { display: flex; flex-direction: column; gap: 16px; min-width: 0; }

/* 左侧影像对比区：随页面滚动保持固定在画面中 */
.panel.left {
  position: sticky;
  top: 82px;
  align-self: start;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  scrollbar-width: thin;
}
@media (max-width: 1080px) {
  .panel.left {
    position: static;
    max-height: none;
    overflow: visible;
  }
}

/* ---------- 上传区（取景框） ---------- */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 6px;
  padding: 46px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, box-shadow .2s;
  background: var(--panel);
  position: relative;
}
.dropzone::before, .dropzone::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent);
  border-style: solid;
  opacity: .55;
}
.dropzone::before { top: 10px; left: 10px; border-width: 2px 0 0 2px; }
.dropzone::after { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; }
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  background: rgba(224, 166, 63, .06);
  box-shadow: 0 0 24px rgba(224, 166, 63, .12);
}
.dz-icon { font-size: 40px; margin-bottom: 10px; filter: sepia(.35) saturate(1.3); }
.dz-main {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
}
.dz-hint { font-size: 12px; color: var(--muted); margin-top: 6px; letter-spacing: 1px; }

/* ---------- 影像对比（放映区） ---------- */
.preview-wrap { display: flex; flex-direction: column; gap: 10px; }
.compare-tools { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.cmp-label { font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 3px; overflow: hidden; }
.seg button {
  background: #0d0a08;
  border: none;
  color: var(--muted);
  font-size: 12px;
  padding: 5px 14px;
  cursor: pointer;
  font-family: var(--font-serif);
  letter-spacing: 1px;
}
.seg button.on { background: var(--accent); color: #1a120a; font-weight: 700; }
.hint { font-size: 12px; color: var(--muted); letter-spacing: .5px; }

.compare { position: relative; display: flex; gap: 12px; }
.compare .frame { position: relative; flex: 1; min-width: 0; }
.compare canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  background: #000;
  border: 1px solid var(--border);
  box-shadow: inset 0 0 60px rgba(0, 0, 0, .5);
}
.compare .frame::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(224, 166, 63, .35);
  border-radius: 3px;
  pointer-events: none;
  z-index: 3;
}
.compare .tag {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  background: rgba(0, 0, 0, .72);
  color: #e9dcc3;
  padding: 2px 9px;
  border-radius: 2px;
  z-index: 4;
}
.grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  opacity: .12;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 2;
  border-radius: 4px;
}
/* 左右分割对比：保持两栏布局不变，各栏用 200% 宽画布显示整图的左/右半（1:1），
   框体尺寸与并排模式一致，不放大不位移 */
.compare.split { gap: 0; }
.compare.split .frame { overflow: hidden; }
.compare.split #cvOriginal {
  width: 200%;
  height: auto;
  transform-origin: left center;
}
.compare.split #cvLut {
  width: 200%;
  height: auto;
  transform: translateX(-50%);
}
.compare.split::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #f0e6cf;
  box-shadow: 0 0 8px rgba(0, 0, 0, .9);
  z-index: 5;
}

/* ---------- 卡片（底片匣） ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, .22);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.card-head h2 {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
}
.badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #1a120a;
  font-weight: 700;
  letter-spacing: 1px;
  font-family: var(--font-serif);
}
.analysis {
  font-size: 13px;
  line-height: 1.75;
  color: #d8c9ae;
  min-height: 44px;
  white-space: pre-line;
}

.btn-row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn {
  border: 1px solid #4a3b28;
  background: #2a2118;
  color: var(--text);
  padding: 9px 18px;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: filter .15s, box-shadow .15s, background .15s;
  text-decoration: none;
  display: inline-block;
  font-family: var(--font-serif);
  letter-spacing: 1px;
}
.btn:hover {
  filter: brightness(1.18);
  box-shadow: 0 0 14px rgba(224, 166, 63, .25);
}
.btn.primary {
  background: linear-gradient(135deg, #e8b04a, var(--accent2));
  border: none;
  color: #1a120a;
  font-weight: 700;
}
.btn:disabled, .btn.off {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- 预设 ---------- */
.preset-row { display: flex; gap: 10px; }
.preset-row select {
  flex: 1;
  background: #2a2118;
  color: var(--text);
  border: 1px solid #4a3b28;
  border-radius: 4px;
  padding: 8px 10px;
  font-size: 13px;
}
.preset-desc { font-size: 12px; color: var(--muted); margin-top: 8px; min-height: 16px; }

/* ---------- LUT 精度选择 ---------- */
.size-row { display: flex; align-items: center; gap: 8px; }
.size-row select {
  background: #2a2118;
  color: var(--text);
  border: 1px solid #4a3b28;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  cursor: pointer;
}

/* ---------- 参数滑块 ---------- */
.param-group { margin-bottom: 14px; }
.param-group:last-child { margin-bottom: 0; }
.param-group h3 {
  font-family: var(--font-serif);
  font-size: 12px;
  color: var(--accent2);
  letter-spacing: 2px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px dashed #4a3b28;
}
.param-row { margin-bottom: 10px; }
.p-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3px;
}
.p-head label { font-size: 12px; color: #d8c9ae; }
.p-val {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(224, 166, 63, .13);
  border: 1px solid rgba(224, 166, 63, .25);
  border-radius: 3px;
  padding: 1px 8px;
  min-width: 34px;
  text-align: center;
  font-family: var(--font-mono);
}
.param-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ---------- 页脚 ---------- */
footer {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 24px 36px;
  font-size: 12px;
  color: var(--muted);
  line-height: 2;
  letter-spacing: .5px;
}
footer code {
  background: #241c14;
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 11px;
  color: var(--accent);
}

/* ---------- 备案信息 ---------- */
.beian {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.beian a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: .5px;
  transition: color .2s;
}
.beian a:hover { color: var(--accent); }
.beian img {
  height: 16px;
  width: auto;
  border: none;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: #241c14;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 13px;
  z-index: 100;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .6);
  max-width: 80vw;
  font-family: var(--font-serif);
  letter-spacing: .5px;
}
.toast.ok { border-color: var(--ok); color: #d9ecc9; }
.toast.err { border-color: var(--err); color: #f3cfc8; }