/* ==========================================================================
   gate.css — styles for the access page only.
   Deliberately self-contained and minimal: the access page loads nothing
   from the site's content stylesheet.
   ========================================================================== */
:root {
  --ink:    #131A17;
  --paper:  #F5F2EA;
  --card:   #FFFDF7;
  --accent: #A8492A;
  --muted:  #5E584D;
  --soft:   #8A8274;
  --rule:   #D8D0BF;
  --danger: #93321C;
  --mono:   "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans:   "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: var(--paper);
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: center;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.gate {
  width: 100%;
  max-width: 27rem;
  padding: clamp(1.75rem, 5vw, 2.75rem);
  background: var(--card);
  border: 1px solid var(--rule);
}

.gate__mark {
  width: 12px;
  height: 12px;
  background: var(--accent);
  transform: rotate(45deg);
  margin: 0 0 1.75rem;
}

.gate__title {
  margin: 0 0 .5rem;
  font: 500 .78rem/1.4 var(--mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink);
}

.gate__hint {
  margin: 0 0 1.9rem;
  font-size: .92rem;
  color: var(--muted);
}

.gate__label {
  display: block;
  margin-bottom: .55rem;
  font: 500 .75rem/1.4 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--soft);
}

.gate__field {
  width: 100%;
  min-height: 52px;
  padding: .85rem .95rem;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: .12em;
  transition: border-color .2s ease, background-color .2s ease;
  appearance: none;
}
.gate__field::placeholder { color: #B4AC9C; letter-spacing: .2em; }
.gate__field:hover { border-color: #BEB4A0; }
.gate__field:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
  background: var(--card);
}
.gate__field[aria-invalid="true"] { border-color: var(--danger); }

.gate__submit {
  width: 100%;
  min-height: 52px;
  margin-top: 1rem;
  padding: .9rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 0;
  font: 500 .75rem/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color .22s ease, border-color .22s ease;
}
.gate__submit:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.gate__submit:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.gate__alert {
  margin: 1rem 0 0;
  padding: .7rem .85rem;
  border-left: 2px solid var(--danger);
  background: #F6EAE5;
  color: var(--danger);
  font-size: .9rem;
}
.gate__alert[hidden] { display: none; }

.gate__noscript {
  margin: 1rem 0 0;
  padding: .7rem .85rem;
  border-left: 2px solid var(--soft);
  background: var(--paper);
  color: var(--muted);
  font-size: .9rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .001ms !important; }
}