* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

:root {
  --ink: #0f172a;
  --muted: #526174;
  --line: #dbe4ef;
  --paper: #ffffff;
  --soft: #f5f8fb;
  --blue: #2563eb;
  --green: #16a34a;
  --red: #dc2626;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(248, 250, 252, 0.98), rgba(248, 250, 252, 0.8) 50%, rgba(248, 250, 252, 0.52)),
    url("assets/mission-control-data-center-construction.jpg") center right / cover no-repeat,
    var(--soft);
}

a {
  color: inherit;
  text-decoration: none;
}

.signin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 480px);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
  padding: clamp(20px, 5vw, 64px);
}

.signin-hero {
  display: grid;
  gap: 28px;
  max-width: 680px;
}

.signin-brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.signin-brand span {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
  font-size: 13px;
}

.signin-kicker {
  margin: 0;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signin-hero h1,
.signin-card h2 {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
}

.signin-hero h1 {
  max-width: 640px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.98;
}

.signin-hero p,
.signin-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.signin-hero > div > p:last-child {
  max-width: 600px;
  margin-top: 18px;
  font-size: 18px;
}

.signin-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.signin-proof-grid article,
.signin-card {
  border: 1px solid rgba(219, 228, 239, 0.92);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.13);
}

.signin-proof-grid article {
  display: grid;
  gap: 6px;
  min-height: 118px;
  padding: 16px;
}

.signin-proof-grid strong {
  font-size: 16px;
}

.signin-proof-grid span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.signin-card {
  display: grid;
  gap: 20px;
  padding: clamp(22px, 4vw, 36px);
}

.signin-card-head {
  display: grid;
  gap: 8px;
}

.signin-form {
  display: grid;
  gap: 14px;
}

.signin-form div {
  display: grid;
  gap: 7px;
}

.signin-form label {
  color: #334155;
  font-size: 13px;
  font-weight: 900;
}

.signin-form input {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
}

.signin-form input:focus {
  outline: 2px solid rgba(37, 99, 235, 0.22);
  border-color: var(--blue);
}

.signin-form button,
.signin-secondary-actions button {
  min-height: 48px;
  border-radius: 8px;
  border: 0;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.signin-form button {
  background: var(--ink);
  color: #ffffff;
}

.invite-welcome,
.invite-recovery-panel {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
}

.invite-welcome span,
.invite-recovery-panel p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.invite-welcome .invite-step {
  color: var(--blue);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.password-guidance {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.invite-recovery-panel label {
  color: #334155;
  font-size: 13px;
  font-weight: 900;
}

.invite-recovery-panel input {
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font: inherit;
}

.invite-recovery-panel button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.signin-secondary-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
}

.signin-invite-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  text-align: center;
}

.signin-secondary-actions .secondary {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
}

.signin-status {
  min-height: 44px;
  padding: 12px;
  border: 1px solid #bfdbfe;
  border-left: 5px solid var(--blue);
  border-radius: 8px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 13px;
  font-weight: 800;
}

.signin-status.success {
  border-color: #bbf7d0;
  border-left-color: var(--green);
  background: #f0fdf4;
  color: #14532d;
}

.signin-status.warning {
  border-color: #fecaca;
  border-left-color: var(--red);
  background: #fef2f2;
  color: #7f1d1d;
}

.signin-footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

@media (max-width: 860px) {
  body {
    background:
      linear-gradient(180deg, rgba(248, 250, 252, 0.98), rgba(248, 250, 252, 0.94)),
      url("assets/mission-control-data-center-construction.jpg") center / cover no-repeat,
      var(--soft);
  }

  .signin-shell {
    grid-template-columns: 1fr;
  }

  .signin-hero h1 {
    font-size: clamp(34px, 11vw, 48px);
  }

  .signin-proof-grid,
  .signin-secondary-actions {
    grid-template-columns: 1fr;
  }
}

@media (pointer: coarse) {
  button,
  a,
  input {
    -webkit-tap-highlight-color: transparent;
  }

  button,
  a {
    touch-action: manipulation;
  }

  .signin-form input,
  .invite-recovery-panel input,
  .signin-form button,
  .signin-secondary-actions button,
  .invite-recovery-panel button {
    min-height: 50px;
    font-size: 16px;
  }

  .signin-shell {
    min-height: 100dvh;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
    padding-bottom: max(20px, env(safe-area-inset-bottom));
  }

  button:active,
  a:active {
    transform: scale(0.985);
  }
}