:root {
  --bg: #07090e;
  --bg-deep: #030508;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text: #c8cdd6;
  --text-bright: #ffffff;
  --muted: #848e9f;
  --gold: #d4af37;
  --gold-glow: rgba(212, 175, 55, 0.25);
  --danger: #ef4444;
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at 50% 20%, #151a28 0%, var(--bg) 65%);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-wrapper {
  width: 100%;
  max-width: 440px;
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.auth-brand {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.auth-sub {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.pin-display {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 26px;
}

.pin-dot {
  width: 52px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  color: var(--text-bright);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.pin-dot.filled {
  border-color: var(--gold);
  background: rgba(212, 175, 55, 0.08);
  box-shadow: 0 0 15px var(--gold-glow);
}

.pin-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.key-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  color: var(--text-bright);
  font-size: 1.35rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  padding: 16px 0;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.key-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.key-btn:active {
  transform: scale(0.96);
  background: rgba(255, 255, 255, 0.14);
}

.key-btn.action {
  font-size: 0.95rem;
  font-family: "Inter", sans-serif;
  color: var(--muted);
}

.unlock-btn {
  width: 100%;
  padding: 15px;
  background: #d4af37;
  color: #06090e;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
}

.unlock-btn:hover {
  background: #e2c050;
  box-shadow: 0 0 25px rgba(212, 175, 55, 0.4);
}

.unlock-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.auth-error {
  min-height: 22px;
  color: var(--danger);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 14px;
}

.shake {
  animation: shake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

.hidden-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.auth-footer {
  margin-top: 22px;
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.auth-footer svg {
  width: 14px;
  height: 14px;
  stroke: var(--gold);
}