/* HawkEye · 深色网球主题 */
:root {
  --bg: #0c1210;
  --bg-soft: #101915;
  --panel: #14201b;
  --panel-hover: #182822;
  --line: #24382e;
  --accent: #d4f544;        /* 网球荧光黄绿 */
  --accent-dim: #a8c42f;
  --text: #e9f1ea;
  --muted: #8ea796;
  --danger: #ff7a6b;
  --radius: 14px;
}

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

body {
  background:
    radial-gradient(1200px 500px at 50% -10%, #16241d 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  min-height: 100vh;
}

.page { max-width: 1060px; margin: 0 auto; padding: 28px 20px 60px; }

/* ---- 头部 ---- */
header { margin-bottom: 28px; }
.logo { display: flex; align-items: center; gap: 14px; }
.logo-ball {
  font-size: 40px;
  filter: drop-shadow(0 0 14px rgba(212, 245, 68, .35));
}
h1 {
  font-size: 30px; letter-spacing: 3px; font-weight: 800;
  color: var(--text);
}
h1 span { color: var(--accent); }
.logo p { color: var(--muted); font-size: 13px; margin-top: 2px; }

/* ---- 上传区 ---- */
.uploads {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: stretch;
}

.upload-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color .2s;
}
.upload-card.has-image { border-color: var(--accent-dim); }

.card-head { display: flex; justify-content: space-between; align-items: center; }
.card-head h2 { font-size: 15px; font-weight: 600; color: var(--accent); }

.btn-clear {
  background: none; border: none; color: var(--muted);
  font-size: 14px; cursor: pointer; padding: 4px 8px; border-radius: 8px;
}
.btn-clear:hover { color: var(--danger); background: rgba(255, 122, 107, .1); }

.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  min-height: 210px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; color: var(--muted);
  transition: border-color .15s, background .15s;
  text-align: center; padding: 18px;
}
.dropzone:hover, .dropzone:focus-visible {
  border-color: var(--accent-dim);
  background: var(--panel-hover);
  outline: none;
}
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(212, 245, 68, .06);
}
.court-icon { width: 84px; height: 60px; color: var(--accent-dim); opacity: .9; }
.dz-title { font-size: 14px; color: var(--text); }
.dz-sub { font-size: 12px; color: var(--muted); }

.preview img {
  width: 100%; height: 210px; object-fit: cover;
  border-radius: 10px; display: block;
}
.preview-name {
  font-size: 12px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-top: 6px;
}

/* 互换按钮 */
.btn-swap {
  align-self: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--panel); color: var(--accent);
  border: 1px solid var(--line);
  font-size: 18px; cursor: pointer;
  transition: transform .15s, border-color .15s;
}
.btn-swap:hover:not(:disabled) { transform: rotate(180deg); border-color: var(--accent-dim); }
.btn-swap:disabled { opacity: .35; cursor: not-allowed; }

/* ---- 操作区 ---- */
.action-bar {
  margin-top: 22px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
  color: #10160c;
  border: none; border-radius: 999px;
  padding: 13px 34px;
  font-size: 15px; font-weight: 700; letter-spacing: 1px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  transition: filter .15s, transform .1s;
  text-decoration: none;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }
.btn-primary:active:not(:disabled) { transform: scale(.97); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; }

.spinner {
  width: 16px; height: 16px;
  border: 2.5px solid rgba(16, 22, 12, .3);
  border-top-color: #10160c;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

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

/* ---- 横幅 ---- */
.banner {
  margin-top: 20px; padding: 13px 18px;
  border-radius: 10px; font-size: 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.banner strong { font-size: 14px; }
.banner-error { background: rgba(255, 122, 107, .1); border: 1px solid rgba(255, 122, 107, .4); color: var(--danger); }
.banner-warn { background: rgba(212, 245, 68, .07); border: 1px solid rgba(212, 245, 68, .3); color: var(--accent); }

/* ---- 结果区 ---- */
.result { margin-top: 34px; }
.result-head {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; margin-bottom: 14px;
}
.result-head h2 { font-size: 18px; }
.result-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn-ghost {
  background: none; color: var(--text);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 20px; font-size: 13px; cursor: pointer;
  transition: border-color .15s;
}
.btn-ghost:hover { border-color: var(--accent-dim); }

.stats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.chip {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 999px; padding: 7px 15px;
  font-size: 12.5px; color: var(--muted);
}
.chip b { color: var(--text); font-weight: 600; margin-left: 5px; }
.chip.good b { color: var(--accent); }

.panorama-box, .viz-box {
  background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px; overflow: hidden;
}
.panorama-box img, .viz-box img {
  width: 100%; display: block; border-radius: 8px; cursor: zoom-in;
  background:
    repeating-conic-gradient(#182019 0% 25%, #111713 0% 50%) 0 0 / 24px 24px;
}
.viz-box { margin-top: 14px; }
.viz-box figcaption {
  font-size: 12px; color: var(--muted); padding: 6px 4px 10px;
}

footer { margin-top: 46px; text-align: center; color: var(--muted); font-size: 12px; }

/* ---- 调优样本上传 ---- */
.tuning { margin-top: 40px; }
.tuning details {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 4px 18px;
}
.tuning summary {
  cursor: pointer; padding: 12px 0;
  font-size: 14px; font-weight: 600; color: var(--text);
  user-select: none;
}
.tuning summary:hover { color: var(--accent); }
.tuning .hint { margin: 4px 0 14px; }
.tuning .hint b { color: var(--accent); font-weight: 600; }
.tuning-slots { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.slot {
  flex: 1; min-width: 130px;
  border: 1.5px dashed var(--line); border-radius: 10px;
  padding: 14px 10px; text-align: center; cursor: pointer;
  display: flex; flex-direction: column; gap: 5px;
  transition: border-color .15s, background .15s;
}
.slot:hover { border-color: var(--accent-dim); background: var(--panel-hover); }
.slot.filled { border-style: solid; border-color: var(--accent-dim); }
.slot-title { font-size: 13px; color: var(--text); font-weight: 600; }
.slot-name {
  font-size: 11px; font-style: normal; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.slot.filled .slot-name { color: var(--accent); }
.tuning-actions { display: flex; align-items: center; gap: 14px; padding-bottom: 16px; }
.tune-status { font-size: 12.5px; color: var(--muted); }
.tune-status.ok { color: var(--accent); }
.tune-status.err { color: var(--danger); }

.spinner-dark {
  border-color: rgba(233, 241, 234, .3);
  border-top-color: var(--text);
}

@media (max-width: 720px) {
  .uploads { grid-template-columns: 1fr; }
  .btn-swap { transform: rotate(90deg); }
  .btn-swap:hover:not(:disabled) { transform: rotate(270deg); }
}