:root {
  --bg: #060c17;
  --bg-graph: #070d1a;
  --bg-rgb: 6,12,23;
  --surface-rgb: 255,255,255;
  --s1: rgba(255,255,255,0.04);
  --s2: rgba(255,255,255,0.07);
  --b0: rgba(255,255,255,0.07);
  --b1: rgba(255,255,255,0.12);
  --b2: rgba(255,255,255,0.18);
  --t1: #e2e8f0;
  --t2: #94a3b8;
  --t3: #4e6074;
  --nav: 76px;
  --sb: 350px;
  --cd: #4f9cf9;
  --cd-rgb: 79,156,249;
  --ce: #10b981;
  --ce-rgb: 16,185,129;
  --co: #a78bfa;
  --co-rgb: 167,139,250;
  --ct: #fb7185;
  --ct-rgb: 251,113,133;
  --ci: #f59e0b;
  --ci-rgb: 245,158,11;
  --cq: #22d3ee;
  --cq-rgb: 34,211,238;
  --ef: #34d399;
  --ea: #f87171;
  --em: #7891ab;
  --c-driver: #4f9cf9;
  --c-driver-rgb: 79,156,249;
  --c-driver-text: #93c5fd;
  --c-target-driver: #c084fc;
  --c-target-driver-rgb: 192,132,252;
  --c-target-driver-text: #d8b4fe;
  --c-information: #10b981;
  --c-information-rgb: 16,185,129;
  --c-information-text: #6ee7b7;
  --c-evidence: #10b981;
  --c-evidence-rgb: 16,185,129;
  --c-evidence-text: #6ee7b7;
  --c-option: #a78bfa;
  --c-option-rgb: 167,139,250;
  --c-option-text: #c4b5fd;
  --c-target: #fb7185;
  --c-target-rgb: 251,113,133;
  --c-target-text: #fda4af;
  --c-indicator: #f59e0b;
  --c-indicator-rgb: 245,158,11;
  --c-indicator-text: #fcd34d;
  --c-question: #22d3ee;
  --c-question-rgb: 34,211,238;
  --c-question-text: #67e8f9;
  --c-for: #34d399;
  --c-for-rgb: 52,211,153;
  --c-for-text: #6ee7b7;
  --c-against: #f87171;
  --c-against-rgb: 248,113,113;
  --c-against-text: #fca5a5;
  --c-ambiguous: #7891ab;
  --c-reference: #7dd3fc;
  --c-reference-rgb: 125,211,252;
  --c-reference-text: #bae6fd;
  --c-ambermed: #fbbf24;
  --c-ambermed-rgb: 251,191,36;
  --c-slate500: #64748b;
  --c-slate500-rgb: 100,116,139;
  --c-slate300: #94a3b8;
  --c-slate300-rgb: 148,163,184;
  --c-green500: #22c55e;
  --c-green500-rgb: 34,197,94;
}

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at 20% 20%, rgba(var(--cd-rgb), 0.22), transparent 32%), rgba(2, 6, 14, 0.88);
  backdrop-filter: blur(18px);
}

.auth-gate[hidden] {
  display: none;
}

.auth-card {
  width: min(440px, 100%);
  padding: 28px;
  border: 1px solid var(--b1);
  border-radius: 24px;
  color: var(--t1);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(6, 12, 23, 0.98));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.auth-card h1 {
  margin: 8px 0 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.auth-card-mark {
  margin-bottom: 16px;
}

.auth-copy,
.auth-message {
  color: var(--t2);
  line-height: 1.5;
}

.auth-message[data-state="error"] {
  color: var(--ea);
}

.auth-form {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.auth-form label {
  display: grid;
  gap: 7px;
  color: var(--t2);
  font-size: 13px;
}

.auth-form input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--b1);
  border-radius: 12px;
  padding: 12px 13px;
  color: var(--t1);
  background: rgba(255, 255, 255, 0.05);
}

.auth-profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.auth-profile-grid[hidden] {
  display: none;
}

.auth-profile-wide {
  grid-column: 1 / -1;
}