:root {
  color-scheme: dark;
  --crust: #11111b;
  --mantle: #181825;
  --base: #1e1e2e;
  --surface0: #313244;
  --surface1: #45475a;
  --surface2: #585b70;
  --overlay: #6c7086;
  --muted: #a6adc8;
  --ink: #cdd6f4;
  --rosewater: #f5e0dc;
  --mauve: #cba6f7;
  --red: #f38ba8;
  --peach: #fab387;
  --green: #a6e3a1;
  --teal: #94e2d5;
  --blue: #89b4fa;
  --lavender: #b4befe;
  --paper: var(--base);
  --card: var(--surface0);
  --line: #45475a;
  --accent: #06d6a0;
  --accent-hover: #6af0c6;
  --accent-ink: var(--crust);
  --danger: var(--red);
  --ok: var(--green);
  --shadow: 0 18px 40px rgba(17, 17, 27, 0.28);
  font-family: "Segoe UI", "Avenir Next", system-ui, sans-serif;
}

* { box-sizing: border-box; }
::selection { background: var(--accent); color: var(--crust); }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 480px at 10% -10%, rgba(6, 214, 160, 0.14), transparent 55%),
    radial-gradient(900px 420px at 100% 0%, rgba(148, 226, 213, 0.1), transparent 50%),
    var(--paper);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.03em; }
h1 { font-size: 1.75rem; margin: 0 0 1rem; }
h2 { font-size: 1.12rem; margin: 0 0 0.6rem; color: var(--rosewater); }
h3 { font-size: 1rem; }

.top {
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.35rem 1.25rem;
  align-items: center;
  padding: 0.75rem 1.4rem;
  background: rgba(24, 24, 37, 0.88);
  color: var(--ink);
  border-bottom: 1px solid rgba(69, 71, 90, 0.9);
  backdrop-filter: blur(16px);
}
.top > form { display: flex; align-items: center; margin: 0; }
.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.03em;
}
.brand span { font-weight: 450; color: var(--accent); }
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.35rem;
  align-items: center;
  min-width: 0;
}
.top button.link {
  min-height: 0;
  padding: 0.28rem 0.65rem;
  font-weight: 450;
  line-height: 1.5;
  border: 0;
  background: transparent;
}
nav a, .top .link {
  color: var(--muted);
  text-decoration: none;
  background: transparent;
  border: 0;
  border-radius: 6px;
  padding: 0.28rem 0.65rem;
  font: inherit;
  cursor: pointer;
}
nav a:hover, .top .link:hover { color: var(--ink); background: rgba(49, 50, 68, 0.8); }
nav a.on {
  color: var(--crust);
  background: var(--accent);
  text-decoration: none;
}
main { width: min(1100px, calc(100% - 2rem)); margin: 1.6rem auto 3rem; }
.foot {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto 2rem;
  color: var(--overlay);
  font-size: 0.82rem;
}
body.narrow {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: safe center;
  padding: 1.5rem 0;
}
body.narrow .top {
  position: static;
  width: min(420px, calc(100% - 2rem));
  display: flex;
  justify-content: center;
  padding: 0 0 1.15rem;
  background: transparent;
  border: 0;
  backdrop-filter: none;
}
body.narrow main { width: min(420px, calc(100% - 2rem)); margin: 0; }
body.narrow .login { margin: 0; padding: 1.4rem 1.4rem 1.2rem; }
body.narrow .login h1 { text-align: center; margin-bottom: 1.15rem; }
body.narrow .login button[type="submit"] { width: 100%; margin-top: 0.35rem; }
body.narrow .foot {
  width: min(420px, calc(100% - 2rem));
  margin: 0.9rem 0 0;
  text-align: center;
}

.card, table, form.filters, form.inline {
  background: rgba(49, 50, 68, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.card { padding: 1.05rem 1.15rem; margin: 0 0 1rem; }
.card table, .card form.inline, .card form.filters {
  background: transparent;
  border: 0;
  box-shadow: none;
  border-radius: 0;
  margin-bottom: 0;
}
table { width: 100%; border-collapse: collapse; margin: 0 0 1rem; overflow: auto; display: block; }
td, th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid rgba(69, 71, 90, 0.85);
  vertical-align: top;
  font-size: 0.95rem;
}
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
label { display: flex; flex-direction: column; gap: 0.28rem; margin: 0.6rem 0; font-size: 0.92rem; color: var(--muted); }
input, select, textarea {
  font: inherit;
  color: var(--ink);
  background: var(--crust);
  border: 1px solid var(--surface1);
  border-radius: 6px;
  padding: 0.45rem 0.65rem;
  min-height: 2.35rem;
}
input::placeholder, textarea::placeholder { color: var(--overlay); }
input:focus, select:focus, textarea:focus {
  outline: 2px solid transparent;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6, 214, 160, 0.28);
}
textarea { resize: vertical; }
button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.35rem;
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.4rem 0.85rem;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  vertical-align: middle;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
button:hover, .button:hover { background: var(--accent-hover); color: var(--crust); border-color: var(--accent-hover); }
button:focus-visible, .button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.secondary, a.button.secondary, button.secondary:hover, a.button.secondary:hover {
  background: transparent;
  color: var(--accent);
  border-color: var(--surface2);
}
button.secondary:hover, a.button.secondary:hover { border-color: var(--accent); color: var(--accent-hover); }
button:disabled:not(.is-busy), a.button:disabled { opacity: 0.45; cursor: not-allowed; }
button.is-busy, a.button.is-busy { cursor: progress; }
button.is-busy::before, a.button.is-busy::before {
  content: "";
  width: 0.85rem;
  height: 0.85rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  flex: 0 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  button.is-busy::before, a.button.is-busy::before { animation: none; opacity: 0.7; }
  .toast, .toast.is-out { animation: none; }
}
button.start {
  font-size: 1.15rem;
  min-height: 3rem;
  padding: 0.65rem 1.6rem;
  margin: 0.8rem 0 0.2rem;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0.8rem 0;
}
.actions > a,
.actions > form:not([hidden]) { margin: 0; align-self: center; }
.actions > form:not([hidden]) { display: flex; align-items: center; }
main :not(.actions) > form:not(.inline):not(.filters):not([hidden]):not(:has(label, table, textarea, select, input:not([type="hidden"]))) {
  display: inline-flex;
  vertical-align: middle;
  margin: 0 0.5rem 0.5rem 0;
}
.meter {
  height: 14px;
  background: var(--surface0);
  border-radius: 6px;
  overflow: hidden;
  margin: 0.8rem 0 0.35rem;
}
.meter span {
  display: block;
  height: 100%;
  background: var(--teal);
  width: 0;
}
.badge {
  display: inline-block;
  border-radius: 6px;
  padding: 0.15rem 0.55rem;
  background: var(--surface0);
  color: var(--teal);
}
form.inline, form.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: end;
  padding: 0.85rem;
  margin-bottom: 1rem;
}
form.inline label, form.filters label { margin: 0; }
form.inline button, form.filters button { margin: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.4rem 1rem; }
.split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0.8rem 0; }
legend { color: var(--muted); padding: 0 0.35rem; }
.checks, .checkline, .row { display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap; }
.checks label { margin: 0; }
.checkline { flex-direction: row; color: var(--ink); }
input[type="checkbox"], input[type="radio"] {
  accent-color: var(--accent);
  width: 1rem;
  height: 1rem;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  flex: 0 0 auto;
}
input[type="checkbox"]:focus, input[type="radio"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: transparent;
  box-shadow: none;
}
.rule { display: grid; grid-template-columns: 1fr 180px; gap: 0.5rem; margin-bottom: 0.4rem; }
.hint { color: var(--muted); }
.error { color: var(--danger); }
.toast {
  position: fixed;
  z-index: 30;
  left: 50%;
  bottom: max(1.35rem, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: min(28rem, calc(100% - 2rem));
  margin: 0;
  padding: 0.7rem 1.05rem;
  background: #2c2c31;
  color: #f5f5f6;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.38);
  font-size: 0.92rem;
  line-height: 1.35;
  text-align: center;
  pointer-events: none;
  animation: toast-in 0.22s ease-out;
}
.toast.is-out { animation: toast-out 0.18s ease-in forwards; }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(0.75rem); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateX(-50%) translateY(0.45rem); }
}
.stats { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; padding: 0; list-style: none; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem 1rem; margin: 0 0 1rem; }
.facts div { margin: 0; }
dt { color: var(--overlay); font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; }
dd { margin: 0; }
.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.7rem; margin-bottom: 0.6rem; }
.tiles article {
  background: rgba(49, 50, 68, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 0.9rem;
}
.tiles span, .tiles small { display: block; color: var(--muted); }
.tiles strong { font-size: 1.6rem; color: var(--teal); letter-spacing: -0.03em; }
.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.28rem;
  list-style: none;
  margin: 0 0 1.1rem;
  width: fit-content;
  max-width: 100%;
  background: rgba(24, 24, 37, 0.75);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.steps a {
  display: inline-block;
  text-decoration: none;
  color: var(--muted);
  border-radius: 6px;
  padding: 0.32rem 0.75rem;
}
.steps a:hover { color: var(--ink); }
.steps .on a { font-weight: 650; background: var(--surface0); color: var(--accent); }
.preview, pre {
  background: var(--crust);
  color: var(--ink);
  border: 1px solid var(--surface1);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  overflow: auto;
}
.preview p { white-space: pre-wrap; margin: 0 0 0.7rem; }
.preview a { color: var(--accent); }
.letter, .letter p, .letter h3, .letter a, .letter .hint, .letter .letter-subject, .letter .letter-who {
  font-family: "Courier New", Courier, monospace;
}
.letter {
  background: var(--crust);
  color: var(--ink);
  border: 1px solid var(--surface1);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow: auto;
  overflow-wrap: anywhere;
  margin: 0.6rem 0 1rem;
}
.letter .letter-who { margin: 0 0 0.75rem; color: var(--accent); }
.letter .letter-subject { font-weight: 680; margin: 0 0 0.15rem; color: var(--rosewater); }
.letter h3 { margin: 0.8rem 0 0.35rem; color: var(--ink); }
.letter p:empty, .letter h3:empty { display: none; }
.letter [data-slot="body"] p { white-space: pre-wrap; margin: 0; }
.letter [data-slot="body"] a { color: var(--accent); }
.letter img { display: block; max-width: 100%; height: auto; border-radius: 10px; margin: 0.6rem 0; }
.letter img[hidden] { display: none; }
.letter .cta {
  display: inline-block;
  background: var(--accent);
  color: var(--crust);
  text-decoration: none;
  font-weight: 650;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  margin: 0.45rem 0;
}
.letter .cta:hover { background: var(--accent-hover); color: var(--crust); }
.letter .cta[hidden] { display: none; }
.letter details { margin-top: 0.7rem; }
.letter summary { cursor: pointer; color: var(--accent); }
.pager { display: flex; gap: 1rem; align-items: center; }
code {
  font-family: ui-monospace, "SFMono-Regular", monospace;
  font-size: 0.86em;
  color: var(--peach);
  background: var(--crust);
  border-radius: 4px;
  padding: 0.05rem 0.3rem;
}
pre code { color: inherit; background: none; padding: 0; }

@media (max-width: 800px) {
  .split, .facts, .tiles { grid-template-columns: 1fr; }
  .top {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand brand" "nav logout";
  }
  .brand { grid-area: brand; }
  nav { grid-area: nav; }
  .top > form { grid-area: logout; align-self: start; }
  .steps { border-radius: 8px; }
}