*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f0f4f8;
  --surface: #ffffff;
  --surface-border: rgba(21, 101, 192, 0.12);
  --text: #1e293b;
  --text-muted: #475569;
  --accent: #1565c0;
  --accent-soft: rgba(21, 101, 192, 0.1);
  --danger: #dc2626;
  --radius: 16px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ---- header ---- */

.header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
}

/* ---- main ---- */

.main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

.card {
  width: 100%;
  max-width: 680px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(21, 101, 192, 0.08);
  padding: 2.5rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  animation: fadeUp 0.5s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- shield icon ---- */

.shield {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(220, 38, 38, 0.08);
  flex-shrink: 0;
}

/* ---- tabs ---- */

.tabs {
  display: flex;
  background: rgba(21, 101, 192, 0.06);
  border-radius: 10px;
  padding: 4px;
  gap: 2px;
  width: 100%;
  max-width: 360px;
}

.tab {
  flex: 1;
  padding: 0.5rem 0.75rem;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background: var(--accent-soft);
  color: #1565c0;
  font-weight: 600;
}

/* ---- panels ---- */

.panels {
  width: 100%;
}

.panel {
  display: none;
  animation: panelIn 0.3s ease both;
}

.panel.active {
  display: block;
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel h1 {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.25rem;
  color: #0d47a1;
}

.panel p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 1rem;
}

.panel p:last-child {
  margin-bottom: 0;
}

/* ---- footer ---- */

.footer {
  padding: 1.25rem;
  text-align: center;
  border-top: 1px solid var(--surface-border);
}

.footer p {
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ---- responsive ---- */

@media (max-width: 520px) {
  .card {
    padding: 2rem 1.25rem 1.5rem;
    gap: 1.5rem;
  }

  .tabs {
    max-width: 100%;
  }

  .panel h1 {
    font-size: 1.25rem;
  }

  .panel p {
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card,
  .panel {
    animation: none;
  }
}