:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #141821;
  --muted: #667085;
  --line: #e4e7ec;
  --line-strong: #cfd4dc;
  --track: #eaecf0;
  --accent: #2458e6;
  --accent-hover: #1d4bd0;
  --accent-soft: #eef3ff;
  --ok: #12a150;
  --ok-soft: #e8f7ee;
  --warn: #b25e09;
  --warn-soft: #fff6e6;
  --warn-line: #f5d8a8;
  --err: #d92d20;
  --err-soft: #fdecea;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 28px rgba(16, 24, 40, .06);
  --contour: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='640' height='260' viewBox='0 0 640 260'%3E%3Cg fill='none' stroke='%232458e6' stroke-opacity='.08' stroke-width='1.3'%3E%3Cpath d='M-20 230c90-50 170 30 280-15s200-90 380-10'/%3E%3Cpath d='M-20 200c95-55 175 25 285-20s195-95 375-15'/%3E%3Cpath d='M-20 170c100-60 180 20 290-25s190-100 370-20'/%3E%3Cpath d='M-20 140c105-65 185 15 295-30s185-105 365-25'/%3E%3Cpath d='M-20 110c110-70 190 10 300-35s180-110 360-30'/%3E%3C/g%3E%3C/svg%3E");
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1116;
    --card: #161a22;
    --text: #e7eaf0;
    --muted: #98a2b3;
    --line: #252b36;
    --line-strong: #343c4a;
    --track: #262c38;
    --accent: #5b8cff;
    --accent-hover: #7aa2ff;
    --accent-soft: #18233d;
    --ok: #3ccb7f;
    --ok-soft: #12291d;
    --warn: #f5b454;
    --warn-soft: #2a2112;
    --warn-line: #4d3a17;
    --err: #ff6b5e;
    --err-soft: #2e1614;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 28px rgba(0, 0, 0, .25);
    --contour: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='640' height='260' viewBox='0 0 640 260'%3E%3Cg fill='none' stroke='%235b8cff' stroke-opacity='.1' stroke-width='1.3'%3E%3Cpath d='M-20 230c90-50 170 30 280-15s200-90 380-10'/%3E%3Cpath d='M-20 200c95-55 175 25 285-20s195-95 375-15'/%3E%3Cpath d='M-20 170c100-60 180 20 290-25s190-100 370-20'/%3E%3Cpath d='M-20 140c105-65 185 15 295-30s185-105 365-25'/%3E%3Cpath d='M-20 110c110-70 190 10 300-35s180-110 360-30'/%3E%3C/g%3E%3C/svg%3E");
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { margin: 0; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1 { font-size: 26px; line-height: 1.25; margin: 0 0 6px; letter-spacing: -.01em; font-weight: 650; }
.muted { color: var(--muted); }
.sm { font-size: 13px; }

/* шапка */
.top {
  max-width: 880px; margin: 0 auto; padding: 20px 16px 8px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 650; font-size: 17px; letter-spacing: -.01em; }
.brand-dim { color: var(--muted); font-weight: 500; }
.brand-text { white-space: nowrap; }
.brand-sep { color: var(--line-strong); font-weight: 400; margin: 0 3px; }
.user { display: flex; align-items: center; gap: 10px; min-width: 0; }
.user-name { color: var(--muted); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

main { max-width: 880px; margin: 0 auto; padding: 16px 16px 64px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  box-shadow: var(--shadow); padding: 24px;
}
.card.narrow { max-width: 420px; margin: 40px auto 0; padding: 32px 28px; }
.card.narrow p.muted { margin: 0 0 22px; }

/* форма входа */
.field { display: block; margin-bottom: 14px; }
.field span { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.field input {
  width: 100%; height: 44px; padding: 0 12px; font: inherit; color: var(--text);
  background: var(--card); border: 1px solid var(--line-strong); border-radius: 10px;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.check { display: flex; align-items: center; gap: 8px; margin: 4px 0 20px; font-size: 14px; color: var(--muted); cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); margin: 0; }
.form-msg { margin: 14px 0 0; padding: 10px 12px; border-radius: 10px; font-size: 14px; background: var(--err-soft); color: var(--err); }
.form-msg.warn { background: var(--warn-soft); color: var(--warn); }

/* кнопки */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 18px; font: inherit; font-weight: 600; font-size: 14.5px;
  color: var(--text); background: var(--card); border: 1px solid var(--line-strong);
  border-radius: 11px; cursor: pointer; transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover { border-color: var(--muted); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--accent-soft); border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { color: var(--text); background: var(--track); }
.btn.sm { height: 32px; padding: 0 12px; font-size: 13.5px; border-radius: 9px; }
.btn.wide { width: 100%; height: 46px; }
.btn.danger { color: var(--err); }
.btn.danger:hover { border-color: var(--err); background: var(--err-soft); }
.btn.danger.armed { background: var(--err); border-color: transparent; color: #fff; }
.btn[disabled] { opacity: .6; cursor: default; }

/* основной экран */
.intro { margin: 8px 0 20px; }
.intro p { margin: 0; }

.howto {
  display: flex; gap: 12px; align-items: flex-start; margin: 0 0 16px; padding: 14px 16px;
  border-radius: 14px; background: var(--accent-soft); color: var(--text); font-size: 14px;
}
.howto svg { flex: none; width: 20px; height: 20px; margin-top: 1px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.howto p { margin: 0; }

.drop {
  position: relative; text-align: center; padding: 52px 24px 44px;
  background: var(--card) var(--contour) center bottom / 100% auto no-repeat;
  border: 2px dashed var(--line-strong); border-radius: 22px;
  transition: border-color .15s, background-color .15s, transform .15s;
}
.drop.over { border-color: var(--accent); background-color: var(--accent-soft); transform: scale(1.005); }
.drop-icon {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 18px;
  display: grid; place-items: center; background: var(--accent-soft); color: var(--accent);
}
.drop-icon svg { width: 30px; height: 30px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.drop-title { font-size: 19px; font-weight: 650; letter-spacing: -.01em; }
.drop-sub { color: var(--muted); margin: 4px 0 20px; }
.drop-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.banner {
  display: flex; gap: 12px; align-items: flex-start; margin: 0 0 16px; padding: 14px 16px;
  border-radius: 14px; background: var(--warn-soft); border: 1px solid var(--warn-line); color: var(--text);
}
.banner svg { flex: none; width: 22px; height: 22px; fill: none; stroke: var(--warn); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; margin-top: 1px; }
.banner b { display: block; margin-bottom: 2px; }
.banner span { color: var(--muted); font-size: 14px; }

/* сводка */
.summary { margin-top: 16px; }
.sum-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 12px; }
.sum-title { font-weight: 650; font-size: 17px; }
.sum-pct { font-size: 30px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.stat { padding: 12px 14px; border-radius: 12px; background: var(--bg); border: 1px solid var(--line); min-width: 0; }
.stat span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 2px; }
.stat b { display: block; font-size: 16px; font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sum-foot { display: flex; align-items: center; gap: 16px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.sum-foot .btn { flex: none; margin-left: auto; }
.note { margin: 0; color: var(--muted); font-size: 13.5px; }
.summary.done .sum-pct { color: var(--ok); }

.bar { height: 6px; border-radius: 999px; background: var(--track); overflow: hidden; }
.bar.lg { height: 10px; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); border-radius: inherit; transition: width .35s ease; }
.bar.hash i { background: var(--muted); }
.bar.ok i { background: var(--ok); }
.bar.err i { background: var(--err); }
.bar.wait i { background: var(--warn); }
.bar.off i { background: var(--line-strong); }

/* список файлов */
.files { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; }
.file {
  display: grid; grid-template-columns: 40px minmax(0, 1fr) auto auto; gap: 4px 14px; align-items: center;
  padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: 14px;
}
.file-ic {
  grid-row: span 2; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: var(--track); color: var(--muted); font-size: 10.5px; font-weight: 700; letter-spacing: .02em;
  text-transform: uppercase; overflow: hidden;
}
.file.is-ok .file-ic { background: var(--ok-soft); color: var(--ok); }
.file.is-err .file-ic { background: var(--err-soft); color: var(--err); }
.file-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 550; }
.file-dir { color: var(--muted); font-weight: 400; }
.file-st { font-size: 13px; color: var(--muted); white-space: nowrap; text-align: right; font-variant-numeric: tabular-nums; }
.file.is-ok .file-st { color: var(--ok); font-weight: 600; }
.file.is-err .file-st { color: var(--err); font-weight: 600; }
.file.is-wait .file-st { color: var(--warn); }
.file.is-off .file-name, .file.is-off .file-st { color: var(--muted); }
.file.is-off .file-base { text-decoration: line-through; text-decoration-color: var(--line-strong); }
.file-x {
  grid-column: 4; grid-row: 1 / span 2; justify-self: end; width: 32px; height: 32px; padding: 0;
  display: grid; place-items: center; border-radius: 9px; border: 1px solid transparent;
  background: transparent; color: var(--muted); cursor: pointer; font: inherit; font-size: 12.5px; font-weight: 600;
  transition: background .15s, color .15s;
}
.file-x svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; }
.file-x:hover { background: var(--err-soft); color: var(--err); }
.file-x:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
.file-x.armed { width: auto; padding: 0 10px; background: var(--err); color: #fff; white-space: nowrap; }
.file-x[hidden] { display: block !important; visibility: hidden; }
.file-meta { grid-column: 2 / 4; display: flex; align-items: center; gap: 12px; }
.file-meta .bar { flex: 1; }
.file-size { font-size: 12.5px; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; min-width: 64px; text-align: right; }

/* история */
.card.history { margin-top: 24px; padding: 0; }
.history summary { cursor: pointer; padding: 16px 20px; font-weight: 600; list-style: none; display: flex; align-items: center; gap: 8px; }
.history summary::-webkit-details-marker { display: none; }
.history summary::before { content: ""; width: 8px; height: 8px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); transition: transform .15s; margin-right: 4px; }
.history[open] summary::before { transform: rotate(45deg); }
.count { color: var(--muted); font-weight: 500; white-space: nowrap; }
.history ul { list-style: none; margin: 0; padding: 0 20px 14px; max-height: 360px; overflow: auto; }
.history li { display: flex; gap: 12px; justify-content: space-between; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.history li span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history li span:last-child { color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* подложка при перетаскивании на страницу */
.dragveil {
  position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; pointer-events: none;
  background: color-mix(in srgb, var(--accent) 12%, transparent); backdrop-filter: blur(2px);
}
.dragveil div {
  padding: 18px 26px; border-radius: 16px; background: var(--card); box-shadow: var(--shadow);
  font-weight: 650; font-size: 17px; border: 2px dashed var(--accent);
}

@media (max-width: 560px) {
  .brand { font-size: 15px; gap: 8px; }
  .user-name { display: none; }
  h1 { font-size: 22px; }
  .card { padding: 18px; border-radius: 16px; }
  .card.narrow { margin-top: 16px; padding: 24px 20px; }
  .drop { padding: 36px 16px 32px; }
  .drop-btns .btn { flex: 1 1 140px; }
  .file { grid-template-columns: 36px minmax(0, 1fr) auto; padding: 12px; }
  .file-ic { width: 36px; height: 36px; grid-row: span 3; }
  .file-st { text-align: left; grid-column: 2; }
  .file-x { grid-column: 3; grid-row: 1 / span 3; }
  .file-meta { grid-column: 2; }
  .stats { gap: 8px; }
  .stat { padding: 10px; }
  .stat b { font-size: 14px; white-space: normal; }
  .sum-foot { flex-direction: column; align-items: stretch; gap: 12px; }
  .sum-foot .btn { margin-left: 0; }
  .sum-pct { font-size: 24px; }
}