:root {
  --bg: #f6f8fc;
  --bg-2: #eef2f7;
  --glass: rgba(255, 255, 255, 0.96);
  --border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #667085;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --danger: #e53935;
  --success: #16a34a;
  --shadow: 0 18px 46px rgba(15, 23, 42, 0.14);
  font-family: "Inter", "Space Grotesk", system-ui, -apple-system, sans-serif;
}

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

body.pin-body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.12), transparent 30%),
    radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.08), transparent 26%),
    linear-gradient(135deg, #f9fbff, #eef3ff 42%, #f6f8fc);
  color: var(--text);
  display: flex;
}

.pin-page {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 5vw, 64px);
}

.pin-shell {
  width: min(640px, 100%);
  position: relative;
}

.pin-card {
  position: relative;
  width: 100%;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: clamp(22px, 4vw, 32px);
  backdrop-filter: blur(4px);
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
}

.pin-card__glow {
  position: absolute;
  inset: -40% -20% auto -20%;
  height: 60%;
  background: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.14), transparent 55%);
  filter: blur(20px);
  opacity: 0.9;
  z-index: -1;
  animation: pulse 6s ease-in-out infinite;
}

.pin-kicker {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.7rem;
  color: var(--muted);
  margin: 0 0 10px;
}

.pin-title {
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
  font-size: clamp(1.9rem, 3vw, 2.4rem);
  margin: 0;
  letter-spacing: -0.02em;
}

.pin-subtitle {
  margin: 6px 0 20px;
  color: var(--muted);
  font-size: 1rem;
}

.pin-input-area {
  display: grid;
  gap: 10px;
  margin: 12px 0 14px;
  position: relative;
}

.pin-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #ffffff;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.pin-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(15, 23, 42, 0.15);
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
  transition: all 0.18s ease;
}

.pin-dot.filled {
  background: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
}

.pin-native-input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.pin-helper {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.pin-status {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
  min-height: 20px;
}

.pin-link {
  display: inline-block;
  margin: 6px 0 4px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.pin-link:hover {
  text-decoration: underline;
}

.pin-keypad {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(72px, 1fr));
  gap: 12px;
  width: 100%;
}

.pin-key {
  height: 72px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: linear-gradient(160deg, #ffffff, #f6f8fc);
  color: var(--text);
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.14);
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.pin-key:hover {
  background: linear-gradient(160deg, #f9fbff, #eef3ff);
}

.pin-key:active {
  transform: translateY(1px) scale(0.99);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}

.pin-key:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.pin-key--delete {
  color: var(--danger);
  border-color: rgba(229, 57, 53, 0.28);
  background: #ffffff;
}

.pin-key--ghost {
  visibility: hidden;
  pointer-events: none;
  background: transparent;
  border: none;
  box-shadow: none;
}

.pin-card.is-busy .pin-keypad,
.pin-card.is-busy .pin-dots {
  opacity: 0.8;
}

.pin-card.is-busy::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.55);
  border-radius: inherit;
  pointer-events: none;
}

.pin-dots.shake {
  animation: shake 0.32s ease;
}

.pin-dots.is-error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.18);
}

.pin-dots.is-error .pin-dot {
  border-color: var(--danger);
  box-shadow: inset 0 0 0 1px rgba(229, 57, 53, 0.2);
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.8;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.04);
  }
}

@keyframes shake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
  100% { transform: translateX(0); }
}

@media (max-width: 640px) {
  .pin-card {
    padding: 20px 16px 26px;
    border-radius: 20px;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
    background: #ffffff;
  }

  .pin-keypad {
    gap: 10px;
  }

  .pin-key {
    height: 64px;
    font-size: 1.25rem;
  }
}