/* packlock — 紫蓝黑。一份清单就是一条登记记录:等宽字是它的母语。
   不引外部字体(国内打不开 Google Fonts):系统等宽 + 系统无衬线,靠字距和层级说话。 */

:root {
  --ink: #0b0c18;        /* 页面:蓝黑 */
  --panel: #171a36;      /* 面板:靛 */
  --raised: #23275063;   /* 面板里的分隔 */
  --line: #2f3468;
  --violet: #8f7dff;     /* 主色:紫蓝 */
  --violet-deep: #4a3fd0;
  --pink: #ff6aa9;       /* 链接、错误 */
  --text: #ecebfa;
  --muted: #9da1cc;

  --mono: ui-monospace, "Cascadia Code", "SF Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  --w: 60rem;
}

* { box-sizing: border-box; }

html { background: var(--ink); color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  font: 400 1rem/1.6 var(--sans);
  color: var(--text);
  background:
    radial-gradient(60rem 30rem at 85% -10%, #2a1f6b55, transparent 70%),
    radial-gradient(40rem 24rem at -10% 30%, #1b2a7a33, transparent 70%),
    var(--ink);
  overflow-x: hidden;
}

/* 背景里那一道巨大的斜杠:链接里的 "/",也是这一页唯一的装饰 */
.slash {
  position: fixed;
  left: -4rem;
  top: -9rem;
  font: 700 58rem/1 var(--mono);
  color: #ffffff05;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.top, main, .foot {
  position: relative;
  z-index: 1;
  width: min(var(--w), 100% - 2rem);
  margin-inline: auto;
}

/* ---- 顶栏 ---- */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 0 0;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font: 500 1.35rem/1 var(--mono);
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.mark b { font-weight: 500; color: var(--violet); }
.bars {
  width: 0.5rem;
  height: 1.7rem;
  background: linear-gradient(var(--text) 0 44%, transparent 44% 56%, var(--text) 56%);
}

.tools { display: flex; gap: 0.5rem; }

button, .primary { font: inherit; cursor: pointer; }

.quiet {
  padding: 0.35rem 0.8rem;
  font: 400 0.8rem/1.4 var(--mono);
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
}
.quiet:hover { color: var(--text); border-color: var(--violet); }

:focus-visible { outline: 2px solid var(--pink); outline-offset: 2px; }

/* ---- 输入 ---- */
.ask { padding: 5.5rem 0 3rem; }

h1 {
  margin: 0 0 2rem;
  max-width: 18ch;
  font: 500 clamp(2rem, 5.2vw, 3.4rem)/1.08 var(--mono);
  letter-spacing: -0.045em;
  text-wrap: balance;
}

#form { display: flex; gap: 0.6rem; flex-wrap: wrap; }

.field {
  flex: 1 1 22rem;
  display: flex;
  align-items: center;
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
}
.field:focus-within { border-color: var(--violet); box-shadow: 0 0 0 3px #8f7dff2e; }

.prefix {
  padding-left: 1rem;
  font: 400 0.95rem/1 var(--mono);
  color: var(--muted);
  white-space: nowrap;
}

#url {
  flex: 1;
  min-width: 6rem;
  padding: 1rem 1rem 1rem 0.1rem;
  font: 400 0.95rem/1.2 var(--mono);
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 0;
}

#go, .primary {
  padding: 0 1.6rem;
  min-height: 3.2rem;
  display: inline-flex;
  align-items: center;
  font: 500 0.95rem/1 var(--mono);
  color: #fff;
  text-decoration: none;
  background: var(--violet-deep);
  border: 1px solid var(--violet);
  border-radius: 2px;
}
#go:hover, .primary:hover { background: #5a4ee6; }
#go[disabled] { opacity: 0.6; cursor: progress; }

.secondary {
  padding: 0 1.2rem;
  min-height: 3.2rem;
  font: 400 0.9rem/1 var(--mono);
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
}
.secondary:hover { border-color: var(--violet); }

.checks { margin: 1rem 0 0; font-size: 0.875rem; color: var(--muted); }
.error {
  margin: 1rem 0 0;
  padding: 0.7rem 1rem;
  font: 400 0.9rem/1.5 var(--mono);
  color: var(--pink);
  border-left: 2px solid var(--pink);
  background: #ff6aa912;
}

/* ---- 清单记录 ---- */
.record {
  margin-bottom: 4rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--violet);
}

.record-head {
  display: flex;
  gap: 1.5rem;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 1.5rem 1.5rem 1.25rem;
}
.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }

.eyebrow {
  margin: 0 0 0.4rem;
  font: 400 0.72rem/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.hash {
  margin: 0;
  font: 400 0.95rem/1.7 var(--mono);
  color: var(--violet);
  word-spacing: 0.35em;
  max-width: 44ch;
}

.note { margin: 0; padding: 0 1.5rem 1.25rem; font-size: 0.875rem; color: var(--muted); }

.ledger {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  margin: 0;
  border-block: 1px solid var(--line);
}
.ledger > div { padding: 1rem 1.5rem; box-shadow: 1px 0 0 var(--line), 0 1px 0 var(--line); }
.ledger dt {
  font: 400 0.72rem/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.ledger dd { margin: 0.45rem 0 0; font: 400 1rem/1.4 var(--mono); overflow-wrap: anywhere; }

.warn {
  margin: 0;
  padding: 0.9rem 1.5rem;
  font-size: 0.875rem;
  color: #ffd27a;
  border-bottom: 1px solid var(--line);
  background: #ffd27a0d;
}

.files { padding: 1.25rem 1.5rem 1.5rem; }
.table-wrap { max-height: 22rem; overflow: auto; border: 1px solid var(--line); }

table { width: 100%; border-collapse: collapse; font: 400 0.8rem/1.5 var(--mono); }
th {
  position: sticky;
  top: 0;
  padding: 0.55rem 0.9rem;
  text-align: left;
  font-weight: 400;
  color: var(--muted);
  background: #1e2246;
}
td { padding: 0.45rem 0.9rem; border-top: 1px solid var(--raised); white-space: nowrap; }
td:first-child { white-space: normal; overflow-wrap: anywhere; }
td:nth-child(2), th:nth-child(2) { text-align: right; }
td:last-child { color: var(--muted); }

/* 转换完成那一下:每一行依次"锁上"。唯一的动效 */
@media (prefers-reduced-motion: no-preference) {
  #rows tr { animation: lock-in 0.28s both; animation-delay: calc(var(--i) * 18ms); }
  @keyframes lock-in {
    from { opacity: 0; transform: translateX(-0.5rem); }
  }
}

/* ---- 说明 ---- */
.about {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 2.5rem;
  padding: 1rem 0 4rem;
}
.about h2 { margin: 0 0 0.6rem; font: 500 1rem/1.3 var(--mono); letter-spacing: -0.01em; }
.about p { margin: 0; font-size: 0.925rem; color: var(--muted); }

.foot {
  padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted);
}
.foot p { margin: 0 0 0.3rem; }

a { color: var(--pink); }

@media (max-width: 34rem) {
  .ask { padding-top: 3.5rem; }
  .prefix { display: none; }
  #url { padding-left: 1rem; }
  #go { flex: 1 1 100%; justify-content: center; }
}