*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:      #efefef;
  --paper-dark: #e2e2e2;
  --ink:        #111111;
  --ink-mid:    #444444;
  --ink-light:  #888888;
  --rule:       #bbbbbb;
  --red:        #8b1a1a;
  --black-bar:  #111111;
}

html, body {
  height: 100%;
  background: var(--paper);
  overflow: hidden;
  font-family: 'Barlow', sans-serif;
}

/* Subtle paper texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 100;
}

/* Top black rule */
.top-rule {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: var(--black-bar);
  z-index: 200;
}

/* ── GATE CONTAINER ──────────────────────────────────────── */
#gate {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: opacity 1.0s ease, transform 1.0s ease;
}

#gate.dissolve {
  opacity: 0;
  transform: scale(1.02);
  pointer-events: none;
}

/* ── LOGO ────────────────────────────────────────────────── */
.logo-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 52px;
  animation: fadeUp 1.0s ease forwards;
  opacity: 0;
}

.logo-emblem {
  width: 380px;
  max-width: 80vw;
  height: auto;
  margin-bottom: 20px;
  filter: blur(0.6px);
}

.logo-name {
  font-family: 'Barlow', sans-serif;
  font-weight: 900;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: 0.2em;
  color: var(--ink);
  text-transform: uppercase;
}

.logo-sub {
  font-family: 'Barlow', sans-serif;
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.55em;
  color: var(--ink-mid);
  text-transform: uppercase;
  margin-top: 6px;
}

.logo-rule {
  width: 320px;
  height: 2px;
  background: var(--ink);
  margin-top: 16px;
  position: relative;
}

.logo-rule::after {
  content: '';
  position: absolute;
  top: 4px; left: 0; right: 0;
  height: 1px;
  background: var(--ink);
}

/* ── FORM ────────────────────────────────────────────────── */
.access-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: fadeUp 1.0s 0.2s ease forwards;
  opacity: 0;
}

.field-label {
  font-family: 'Barlow', sans-serif;
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  color: var(--ink-mid);
  text-transform: uppercase;
  margin-bottom: -4px;
}

.codex-input {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  font-family: 'Barlow', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.35em;
  text-align: center;
  width: 280px;
  padding: 10px 4px;
  outline: none;
  transition: border-color 0.2s;
  caret-color: var(--ink);
}

.codex-input:focus {
  border-color: var(--ink);
}

.codex-input::placeholder {
  color: var(--rule);
  letter-spacing: 0.2em;
  font-weight: 400;
}

.submit-btn {
  margin-top: 4px;
  background: var(--ink);
  border: none;
  color: var(--paper);
  font-family: 'Barlow', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  padding: 11px 44px;
  cursor: pointer;
  transition: background 0.2s;
}

.submit-btn:hover  { background: var(--ink-mid); }
.submit-btn:active { background: #000; }

/* Error state */
.error-msg {
  font-family: 'Barlow', sans-serif;
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.35em;
  color: var(--red);
  text-transform: uppercase;
  height: 16px;
  transition: opacity 0.2s;
  opacity: 0;
}

.error-msg.visible { opacity: 1; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(8px); }
  60%       { transform: translateX(-6px); }
  80%       { transform: translateX(6px); }
}

.codex-input.shake {
  animation: shake 0.4s ease;
  border-color: var(--red);
  color: var(--red);
}

/* ── FOOTER MARK ─────────────────────────────────────────── */
.foot-mark {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Barlow', sans-serif;
  font-weight: 400;
  font-size: 0.62rem;
  letter-spacing: 0.4em;
  color: var(--ink-light);
  z-index: 20;
  white-space: nowrap;
  text-transform: uppercase;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}