:root {
  --bg: #0b1020;
  --card: rgba(24, 30, 54, 0.82);
  --card-border: rgba(120, 140, 255, 0.18);
  --text: #e8ecff;
  --muted: #93a0c8;
  --accent: #6c8cff;
  --accent-2: #38d9c0;
  --danger: #ff6b81;
  --radius: 16px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  padding: 32px 16px 48px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.glow {
  position: fixed;
  inset: -30% -10% auto -10%;
  height: 60vh;
  background: radial-gradient(circle at 30% 20%, rgba(108, 140, 255, .35), transparent 60%),
              radial-gradient(circle at 70% 0%, rgba(56, 217, 192, .25), transparent 55%);
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}

.site-header, main, .site-footer { position: relative; z-index: 1; width: 100%; }

.site-header {
  max-width: 720px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo { width: 34px; height: 34px; display: block; border-radius: 9px; }
h1 { margin: 0; font-size: 24px; letter-spacing: .5px; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.stats { color: var(--muted); font-size: 12px; text-align: right; line-height: 1.6; }

.card {
  max-width: 720px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}

.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, .04);
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
  transition: all .18s ease;
}
.tab:hover { color: var(--text); background: rgba(255, 255, 255, .08); }
.tab.active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(108, 140, 255, .28), rgba(56, 217, 192, .18));
  border-color: var(--card-border);
  font-weight: 600;
}

.panel { display: none; }
.panel.active { display: block; animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.dropzone {
  border: 2px dashed rgba(140, 160, 255, .35);
  border-radius: 14px;
  padding: 30px 18px;
  text-align: center;
  cursor: pointer;
  transition: all .18s ease;
  background: rgba(255, 255, 255, .02);
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: rgba(108, 140, 255, .08); outline: none; }
.dropzone.dragover { border-color: var(--accent-2); background: rgba(56, 217, 192, .1); }
.dz-icon { color: var(--accent); }
.dz-icon .icon { width: 42px; height: 42px; stroke-width: 1.4; }
.dz-title { margin: 10px 0 4px; font-size: 15px; }
.dz-hint, .hint, .muted { color: var(--muted); font-size: 12.5px; }
.dz-hint { margin: 0; }
.hint { margin: 8px 0 0; }

.picked, .file-card {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--card-border);
}
.file-card { margin-top: 16px; }
.picked-icon { display: flex; align-items: center; color: var(--accent-2); }
.picked-icon .icon { width: 24px; height: 24px; }
.picked-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.picked-meta strong { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.field { margin-top: 18px; }
.field > label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(140, 160, 255, .25);
  background: rgba(255, 255, 255, .04);
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: all .15s ease;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  font-weight: 600;
}

.custom-ttl { display: flex; gap: 8px; margin-top: 10px; }
.custom-ttl input, .custom-ttl select, .link-row input, #code-input, .input {
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(10, 14, 30, .8);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}
/* 统一交互态：新加的输入框只要挂 .input 就跟分享码输入框同款 */
.input { width: 100%; }
.input:focus, #code-input:focus, .custom-ttl input:focus, .custom-ttl select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 140, 255, .16);
}
.input::placeholder { color: rgba(147, 160, 200, .65); }
.input:disabled { opacity: .6; cursor: not-allowed; }
.custom-ttl input { width: 90px; }

.primary {
  width: 100%;
  margin-top: 20px;
  padding: 13px 18px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101f;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .12s ease, opacity .15s ease;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}
.primary:hover:not(:disabled) { transform: translateY(-1px); }
.primary:disabled { opacity: .45; cursor: not-allowed; }
.primary.inline { width: auto; margin: 0; padding: 11px 20px; font-size: 14px; }

.ghost, .danger, .icon-btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, .06);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: all .15s ease;
}
.ghost:hover { background: rgba(255, 255, 255, .12); }
.danger { border-color: rgba(255, 107, 129, .45); color: var(--danger); }
.danger:hover { background: rgba(255, 107, 129, .14); }
.icon-btn { display: inline-flex; align-items: center; padding: 8px 10px; font-size: 15px; }
.icon-btn .icon { width: 18px; height: 18px; }
.icon-btn:hover { background: rgba(255, 255, 255, .14); }

/* 通用图标：随字号缩放、与文字同色、不参与 flex 压缩 */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  width: 1.1em;
  height: 1.1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.progress { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.bar { flex: 1; height: 8px; border-radius: 999px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.bar-fill { width: 0; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .18s ease; }
#progress-text { font-size: 12px; color: var(--muted); min-width: 38px; text-align: right; }

.result {
  margin-top: 20px;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid rgba(56, 217, 192, .3);
  background: rgba(56, 217, 192, .07);
}
.result-label { margin: 0 0 8px; font-size: 13px; color: var(--muted); }
.code-row { display: flex; align-items: center; gap: 10px; }
.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--accent-2);
  word-break: break-all;
}
.link-row, .code-input-row { display: flex; gap: 8px; margin-top: 12px; }
.link-row input { flex: 1; min-width: 0; font-size: 12.5px; }
.code-input-row { margin-top: 0; }
.code-input-row input { flex: 1; min-width: 0; }
/* 等宽 + 字距只给分享码输入框：设备名这类普通文本框不该长成分享码的样子 */
#code-input {
  letter-spacing: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 18px;
  text-transform: uppercase;
}
.result-meta { list-style: none; margin: 16px 0 0; padding: 0; font-size: 13px; color: var(--muted); }
.result-meta li { padding: 3px 0; }
.result-meta span { color: var(--text); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; word-break: break-all; }
.result-actions { display: flex; gap: 10px; margin-top: 16px; }
.result-actions button { flex: 1; }

.notice {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  border: 1px solid transparent;
}
.notice.error { color: #ffd7dd; background: rgba(255, 107, 129, .14); border-color: rgba(255, 107, 129, .4); }
.notice.ok { color: #d3fff5; background: rgba(56, 217, 192, .14); border-color: rgba(56, 217, 192, .4); }

.site-footer {
  max-width: 720px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}

/* ============================ 设备互传 ============================ */
.tabs { flex-wrap: wrap; }
.tab { min-width: 120px; }

.tab-badge {
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101f;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-row { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.btn-row .primary { margin-top: 0; flex: 1 1 180px; }
.btn-row .ghost { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 7px; }

.device-intro { display: flex; gap: 14px; align-items: flex-start; }
.device-intro strong { font-size: 15px; }
.device-intro .hint { margin: 6px 0 0; }
.device-intro .dz-icon .icon { width: 30px; height: 30px; }

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 24px 0 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
}
.section-title .icon { width: 16px; height: 16px; }

.device-list, .inbox, .device-pick { list-style: none; margin: 0; padding: 0; }
.device-list li, .inbox-item, .device-pick li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--card-border);
}
.device-list li + li, .inbox-item + .inbox-item, .device-pick li + li { margin-top: 8px; }
.device-list .meta, .inbox-item .meta { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.device-list .meta strong, .inbox-item strong {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.inbox-item .note { color: var(--accent-2); font-size: 12.5px; }
.inbox-item .primary.inline { padding: 9px 14px; font-size: 13px; }
.tag {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  border: 1px solid var(--card-border);
  color: var(--muted);
  white-space: nowrap;
}
.tag.self { color: var(--accent-2); border-color: rgba(56, 217, 192, .45); }
.tag.count { color: var(--accent); border-color: rgba(108, 140, 255, .45); }

.pick { display: flex; align-items: center; gap: 12px; width: 100%; cursor: pointer; }
.pick input { width: 18px; height: 18px; flex: none; accent-color: var(--accent); cursor: pointer; }
.pick-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.pick-body strong { font-size: 14px; }
.device-pick li:has(input:checked) { border-color: var(--accent); background: rgba(108, 140, 255, .1); }

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(4, 8, 18, .68);
}
.modal-card {
  width: 100%;
  max-width: 520px;
  max-height: 86vh;
  overflow-y: auto;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  background: #121a2e;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .55);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.modal-head h3 { margin: 0; font-size: 16px; display: inline-flex; align-items: center; gap: 8px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; }
.modal-actions .ghost { flex: 0 0 auto; }
.modal-actions .primary { flex: 1; margin-top: 0; }

.hidden { display: none !important; }

@media (max-width: 520px) {
  .code { font-size: 24px; letter-spacing: 3px; }
  .stats { text-align: left; }
}