/* ----- Tokens ----- */
:root {
  --paper: #F8FAFC;
  --paper-2: #FFFFFF;
  --paper-3: #F1F5F9;
  --ink: #0F1419;
  --ink-2: #2D3340;
  --muted: #64748B;
  --rule: #E2E8F0;
  --rule-strong: #CBD5E1;
  --accent: #FF2D55;
  --accent-deep: #C21F42;
  --accent-tint: #FFE4EA;
  --success: #10B981;
  --success-tint: #D1FAE5;

  --font-display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
p { margin: 0; }

/* ----- Nav ----- */
.nav {
  background: var(--paper-2);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
}
.brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding: 4px 8px;
  background: var(--paper-3);
  border-radius: 3px;
  margin-left: 4px;
}
.nav-user {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-user .dot {
  width: 7px;
  height: 7px;
  background: var(--success);
  border-radius: 50%;
}

/* ----- Shell ----- */
.shell {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px var(--gutter);
}

.card {
  max-width: 480px;
  width: 100%;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 48px 44px;
  box-shadow: 0 1px 2px rgba(15, 20, 25, 0.03);
}

.card-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.024em;
  line-height: 1.1;
  margin-bottom: 14px;
}
.card-sub {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: 28px;
}

.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 15px;
  border-radius: 2px;
  color: var(--ink);
}
.field input:focus {
  outline: none;
  border-color: var(--ink);
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 13px 20px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  text-align: center;
  transition: background .15s ease;
}
.btn:hover { background: var(--accent); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.sso {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sso-btn {
  padding: 11px 16px;
  background: var(--paper);
  border: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink-2);
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all .15s ease;
}
.sso-btn:hover { border-color: var(--ink); color: var(--ink); }

.footer-note {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-align: center;
}
.footer-note a { color: var(--ink-2); border-bottom: 1px solid var(--rule-strong); }

/* ----- OAuth success card ----- */
.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--success-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--success);
}
.success-icon svg {
  width: 28px;
  height: 28px;
}

.meta {
  margin-top: 24px;
  padding: 16px 20px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.meta-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 6px 0;
}
.meta-row:not(:last-child) {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
  margin-bottom: 4px;
}
.meta-k { color: var(--muted); }
.meta-v {
  color: var(--ink);
  word-break: break-all;
  font-weight: 500;
}
.meta-v.accent { color: var(--accent); }

.hint {
  margin-top: 20px;
  padding: 14px 16px;
  background: var(--paper-3);
  border-radius: 2px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.55;
}

.footer-dash {
  padding: 20px var(--gutter);
  border-top: 1px solid var(--rule);
  background: var(--paper-2);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}
.footer-dash a { color: var(--ink-2); }

@media (max-width: 520px) {
  .card { padding: 32px 24px; }
  .card-title { font-size: 26px; }
  .brand-tag { display: none; }
}