@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/archivo-var.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Martian Mono";
  src: url("/assets/fonts/martian-mono.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --panel: #e8e7e0;
  --sunk: #dcdcd1;
  --ink: #1b1d19;
  --ink-2: #4c5049;
  --steel: #5f6459;
  --rule: #c6c7bc;
  --alarm: #a83c28;
  --sans: "Archivo", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
          "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "Martian Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--panel);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

.gate {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.plate {
  width: 100%;
  max-width: 348px;
  border-top: 2px solid var(--ink);
  padding-top: 22px;
}

h1 {
  margin: 0;
  font-size: 23px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lead {
  margin: 8px 0 34px;
  font-size: 12.5px;
  color: var(--ink-2);
}

.field { display: block; }
.field > span {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
  margin-bottom: 6px;
}

input {
  width: 100%;
  height: 48px;
  border: 1px solid var(--ink);
  border-radius: 1px;
  background: #efeee8;
  padding: 0 13px;
  font-family: var(--mono);
  font-size: 18px;
  letter-spacing: 0.26em;
  color: var(--ink);
  outline: none;
}
input::placeholder { color: var(--steel); letter-spacing: 0.06em; font-size: 13px; }
input:focus { border-width: 2px; padding: 0 12px; background: #f3f2ec; }

button {
  width: 100%;
  margin-top: 26px;
  padding: 13px 16px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--panel);
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
}
button:hover { background: #2b2e28; }
button:focus-visible { outline: 2px solid var(--alarm); outline-offset: 3px; }
button:disabled { opacity: 0.55; cursor: default; }

.msg {
  min-height: 18px;
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--alarm);
}

.foot {
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--steel);
}