:root {
  --bg: #f6f7fb;
  --bg-elev: #ffffff;
  --ink: #131722;
  --ink-soft: #5a6376;
  --ink-faint: #8b93a6;
  --line: #e2e5ee;
  --line-strong: #ccd1e0;
  --accent: #5548e8;
  --accent-ink: #ffffff;
  --accent-soft: #eeecfe;
  --danger: #d92d3f;
  --danger-soft: #fdecee;
  --warn-soft: #fff6e5;
  --warn-line: #f0d19a;
  --warn-ink: #6d4c00;
  --shadow: 0 1px 2px rgba(18, 22, 34, .06), 0 12px 32px rgba(18, 22, 34, .07);
  --radius: 14px;
  --radius-sm: 9px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1018;
    --bg-elev: #171b26;
    --ink: #eef0f6;
    --ink-soft: #a3abbe;
    --ink-faint: #757e93;
    --line: #262c3a;
    --line-strong: #38404f;
    --accent: #7c6ffb;
    --accent-ink: #0b0d14;
    --accent-soft: #1e2036;
    --danger: #ff5f6d;
    --danger-soft: #2a1519;
    --warn-soft: #241d0e;
    --warn-line: #4d3d17;
    --warn-ink: #f0cd8a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 14px 40px rgba(0, 0, 0, .35);
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.shell {
  width: 100%;
  max-width: 43rem;
  margin: 0 auto;
  padding: 2rem 1.1rem 3rem;
}

/* ---------- masthead ---------- */

.masthead { text-align: center; margin-bottom: 1.6rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.brand-name { font-size: 1.3rem; font-weight: 700; letter-spacing: -.02em; }
.brand-accent { color: var(--accent); }

.tagline {
  margin: .3rem 0 0;
  color: var(--ink-faint);
  font-size: .85rem;
}

/* ---------- card ---------- */

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.7rem;
}

.card-center { text-align: center; }
.card-center .btn { margin-top: .4rem; }

h1 {
  margin: 0 0 .5rem;
  font-size: 1.42rem;
  line-height: 1.25;
  letter-spacing: -.02em;
}

h2 {
  margin: 0;
  font-size: .82rem;
  font-weight: 650;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.lede { margin: 0 0 1.4rem; color: var(--ink-soft); }
.card-center .lede { margin-bottom: 1rem; }

.state-mark {
  width: 44px;
  height: 44px;
  margin-bottom: .7rem;
  fill: none;
  stroke: var(--ink-faint);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.summary {
  margin: 0 0 1.3rem;
  padding: .8rem .95rem;
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: .93rem;
}

.hint {
  margin: .4rem 0 0;
  color: var(--ink-faint);
  font-size: .81rem;
}

.optional {
  margin-left: .3rem;
  color: var(--ink-faint);
  font-weight: 400;
  font-size: .78rem;
}

.alert {
  margin: 0 0 1.1rem;
  padding: .75rem .9rem;
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: .89rem;
}

.alert-warn {
  border-color: var(--warn-line);
  background: var(--warn-soft);
  color: var(--warn-ink);
  margin: 1.2rem 0;
}

/* ---------- form ---------- */

.stack { display: grid; gap: 1.35rem; }

.field { display: block; border: 0; padding: 0; margin: 0; }

.field > label,
.limits > legend {
  display: block;
  margin-bottom: .4rem;
  font-size: .87rem;
  font-weight: 600;
}

textarea,
input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: .93rem;
}

textarea {
  resize: vertical;
  min-height: 7rem;
  font-family: var(--mono);
  font-size: .88rem;
}

input[type="file"] {
  width: 100%;
  padding: .55rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink-soft);
  font: inherit;
  font-size: .86rem;
}

textarea:focus-visible,
input:focus-visible,
select:focus-visible,
.btn:focus-visible,
.veil:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

input:disabled,
select:disabled { opacity: .45; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.limits {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.limits > legend { padding: 0 .35rem; margin-bottom: 0; }

.limits-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.limit-heading {
  display: inline-block;
  margin: 0 0 .5rem .1rem;
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
}

.limit-line {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
}

.limit-checkbox {
  flex: 0 0 auto;
  width: 1.05rem;
  height: 1.05rem;
  margin: .78rem 0 0 .1rem;
  accent-color: var(--accent);
  cursor: pointer;
}

.limit-field-wrap {
  flex: 1 1 auto;
  min-width: 0;
  transition: opacity .15s ease;
}

.limit-checkbox:not(:checked) + .limit-field-wrap { opacity: .42; }

.limit-field-wrap input:disabled,
.limit-field-wrap select:disabled { opacity: 1; }

.limit-fields {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .65rem;
  /* The unit select is the tallest control, so both rows reserve its height
     and the checkbox lines up with either slider. */
  min-height: 2.6rem;
  min-width: 0;
}

.unit {
  color: var(--ink-soft);
  font-size: .9rem;
  white-space: nowrap;
}

.limit-maximum {
  display: block;
  margin-top: .35rem;
  color: var(--ink-faint);
  font-size: .78rem;
}

.unit-select { width: auto; flex: 0 0 auto; }

/* Track and thumb have to be drawn per engine, so each rule is spelled twice.
   --fill is the share of the track behind the thumb; the server sets it on the
   element so the slider reads correctly before create.js runs. */

.slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 9rem;
  min-width: 0;
  height: 1.4rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.slider::-webkit-slider-runnable-track {
  height: .4rem;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--accent) var(--fill, 0%),
    var(--line-strong) var(--fill, 0%)
  );
}

.slider::-moz-range-track {
  height: .4rem;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--accent) var(--fill, 0%),
    var(--line-strong) var(--fill, 0%)
  );
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: -.325rem;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 1px 3px rgba(18, 22, 34, .35);
}

.slider::-moz-range-thumb {
  width: 1.05rem;
  height: 1.05rem;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 1px 3px rgba(18, 22, 34, .35);
}

.slider:disabled { cursor: default; }

.limit-value {
  flex: 0 0 auto;
  min-width: 3ch;
  text-align: right;
  font-size: .93rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------- toggle ---------- */

.toggle {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  cursor: pointer;
}

.toggle > input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.toggle-track {
  flex: 0 0 auto;
  width: 2.6rem;
  height: 1.5rem;
  margin-top: .1rem;
  border-radius: 999px;
  background: var(--line-strong);
  transition: background .15s ease;
  display: block;
  position: relative;
}

.toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
  transition: transform .15s ease;
}

.toggle > input:checked + .toggle-track { background: var(--accent); }
.toggle > input:checked + .toggle-track .toggle-knob { transform: translateX(1.1rem); }
.toggle > input:focus-visible + .toggle-track { outline: 2px solid var(--accent); outline-offset: 2px; }

.toggle-label { font-size: .9rem; font-weight: 600; }
.toggle-label .hint { font-weight: 400; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .62rem 1.05rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: filter .12s ease, background .12s ease;
}

.btn:hover { filter: brightness(1.07); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: default; transform: none; filter: none; }

.btn-primary { background: var(--accent); color: var(--accent-ink); }

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-danger { background: var(--danger); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { padding: .34rem .65rem; font-size: .8rem; }

/* ---------- created page ---------- */

.copy-row { display: flex; gap: .55rem; align-items: stretch; }
.copy-row .btn { flex: 0 0 auto; }

.link-box {
  font-family: var(--mono);
  font-size: .84rem;
  background: var(--bg);
}

.facts {
  margin: 1.2rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  font-size: .89rem;
}

.facts li { margin-bottom: .3rem; }

/* ---------- veil / reveal ---------- */

.secret { margin-bottom: 1.5rem; }

.reveal-gate {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 14rem;
  padding: 1.5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  overflow: hidden;
  text-align: center;
}

.redacted {
  position: absolute;
  inset: 1rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  filter: blur(8px);
  opacity: .32;
  pointer-events: none;
}

.bar {
  display: block;
  height: .8rem;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--line-strong), var(--ink-faint));
}

.w-90 { width: 90%; }
.w-80 { width: 80%; }
.w-70 { width: 70%; }
.w-45 { width: 45%; }

.reveal-gate-content {
  position: relative;
  z-index: 1;
  width: min(100%, 25rem);
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  box-shadow: 0 8px 24px rgba(18, 22, 34, .08);
}

.reveal-kicker {
  display: block;
  margin-bottom: .28rem;
  color: var(--accent);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.reveal-title {
  display: block;
  font-size: 1.02rem;
  line-height: 1.35;
}

.reveal-description {
  margin: .35rem 0 .8rem;
  color: var(--ink-soft);
  font-size: .84rem;
}

.veil-note {
  margin: .6rem 0 0;
  color: var(--ink-faint);
  font-size: .76rem;
}

.pass-row {
  display: flex;
  gap: .5rem;
  margin-top: .85rem;
}

.pass-row input { min-width: 0; }
.pass-row .btn { flex: 0 0 auto; }

.revealed-panel {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
}

.access-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem .9rem;
  border-bottom: 1px solid var(--line);
  background: var(--accent-soft);
}

.access-state {
  display: flex;
  align-items: center;
  gap: .6rem;
  min-width: 0;
}

.access-dot {
  flex: 0 0 auto;
  width: .62rem;
  height: .62rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent);
}

.access-state > span:last-child { display: grid; line-height: 1.3; }
.access-state strong { font-size: .84rem; }
.access-state span span { color: var(--ink-soft); font-size: .72rem; }

.access-timer {
  flex: 0 0 auto;
  display: flex;
  gap: .45rem;
  padding: .35rem .55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-elev);
  font-variant-numeric: tabular-nums;
  align-items: center;
}

.access-timer span {
  color: var(--ink-faint);
  font-size: .69rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.access-timer strong { color: var(--accent); font-size: .84rem; margin-top: -3px; }

.revealed-content { padding: 1rem; }

.revealed-block { margin-bottom: 1.3rem; }
.revealed-content .revealed-block { margin: 0; }
.files-block { margin: 1rem 0 0; }

.block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  margin-bottom: .5rem;
}

.secret-text {
  margin: 0;
  padding: .9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-family: var(--mono);
  font-size: .88rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 26rem;
  overflow-y: auto;
}

.file-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; }

.file-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .7rem;
  padding: .55rem .75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: .88rem;
}

.file-list .file-name { overflow-wrap: anywhere; }
.file-list .file-size { color: var(--ink-faint); font-size: .8rem; white-space: nowrap; }

.file-meta { display: inline-flex; align-items: center; gap: .6rem; margin-left: auto; }

.file-list .file-bad { border-color: var(--danger); }
.file-list .file-bad .file-size { color: var(--danger); }

.summary.is-final {
  background: var(--warn-soft);
  border: 1px solid var(--warn-line);
  color: var(--warn-ink);
}

/* ---------- danger zone ---------- */

.danger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding: .9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.danger strong { font-size: .9rem; }
.danger .hint { margin-top: .15rem; }

/* ---------- view log ---------- */

.log { border-top: 1px solid var(--line); padding-top: 1.2rem; }

.badge {
  padding: .1rem .5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--ink-soft);
  font-size: .78rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.table-wrap { margin-top: .8rem; overflow-x: auto; }

.log-table { width: 100%; border-collapse: collapse; font-size: .84rem; }

.log-table th {
  text-align: left;
  padding: .4rem .6rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: .74rem;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.log-table td {
  padding: .5rem .6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.log-table tr:last-child td { border-bottom: 0; }
.log-table .mono { font-family: var(--mono); font-size: .82rem; white-space: nowrap; }

.log-table .ua {
  color: var(--ink-faint);
  font-size: .79rem;
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.log-empty td { color: var(--ink-faint); font-style: italic; }

/* ---------- footer ---------- */

.footer {
  margin-top: 1.6rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: .8rem;
}

.footer p { margin: .35rem 0; }
.footer a { color: var(--ink-soft); }

/* ---------- copy feedback ---------- */

.btn.is-copied { background: #12a150; color: #fff; }

@media (max-width: 30rem) {
  .card { padding: 1.25rem; }
  /* Too narrow for one line: the slider takes a row of its own and the value
     and unit sit under it, so the checkbox drops back beside the slider. */
  .limit-fields { min-height: 0; }
  .limit-fields .slider { flex: 1 1 100%; }
  .limit-checkbox { margin-top: .18rem; }
  .reveal-gate { min-height: 15rem; padding: 1rem; }
  .reveal-gate-content { padding: 1rem; }
  .pass-row { flex-direction: column; }
  .pass-row .btn { width: 100%; }
  .access-bar { align-items: flex-start; }
  .access-timer { display: grid; gap: 0; text-align: right; }
  .copy-row { flex-direction: column; }
  .danger { flex-direction: column; align-items: stretch; }
  .danger .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}