:root {
  --background: #0b0f0d;
  --foreground: #ffffff;
  --card: #18211d;
  --primary: #39d98a;
  --muted: #9da7a2;
  --border: #25322d;
  --header-bg: #111815;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: "Outfit", system-ui, -apple-system, sans-serif;
}

.header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--header-bg) 84%, transparent);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  display: block;
  width: auto;
  max-width: none;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand img.brand-main {
  height: 50px;
}

.brand img.brand-sub {
  height: 36px;
  opacity: 0.9;
}

.brand-parent {
  display: flex;
  align-items: center;
}

.brand-attribution {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  line-height: 1;
}

.divider {
  width: 1px;
  height: 48px;
  background: var(--border);
  flex-shrink: 0;
}

.container {
  min-height: calc(100vh - 130px);
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ip-block {
  text-align: center;
}

.ip-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  font-weight: 700;
}

.ip-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.ip-main {
  margin: 0;
  font-size: clamp(2.2rem, 8vw, 5rem);
  letter-spacing: -0.03em;
  font-weight: 800;
  line-height: 1.1;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.copy-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  border-radius: 14px;
  padding: 10px 14px;
  cursor: pointer;
}

.copy-btn:hover {
  border-color: var(--primary);
}

.copy-status {
  min-height: 18px;
  color: var(--primary);
}

.secondary {
  margin-top: 20px;
  text-align: center;
}

.secondary-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.secondary-ip {
  margin: 6px 0 0;
  font-size: clamp(1rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--muted);
  word-break: break-word;
}

.error-box {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid #5f2e2e;
  border-radius: 16px;
  background: rgba(160, 45, 45, 0.15);
  text-align: center;
}

.ad-wrap {
  margin-top: 56px;
  width: min(100%, 860px);
  min-height: 120px;
  overflow: hidden;
}

.ad-note {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer a,
.policy a {
  color: var(--muted);
}

.footer a:hover,
.policy a:hover {
  color: var(--foreground);
}

.policy {
  max-width: 760px;
  margin: 48px auto;
  padding: 0 16px;
  line-height: 1.65;
}

.hidden {
  display: none;
}

@media (max-width: 768px) {
  .header-inner {
    padding: 4px 12px;
  }

  .brand {
    gap: 8px;
  }

  .brand-attribution {
    font-size: 0.75rem;
    gap: 6px;
  }

  .brand img.brand-main {
    height: 40px;
  }

  .brand img.brand-sub {
    height: 28px;
  }

  .divider {
    height: 38px;
  }

  .container {
    min-height: calc(100vh - 112px);
    padding: 30px 12px;
    justify-content: flex-start;
  }

  .ip-label {
    font-size: 0.8rem;
  }

  .ip-row {
    gap: 10px;
  }

  .copy-btn {
    width: 100%;
    max-width: 220px;
    padding: 11px 14px;
  }

  .secondary {
    width: 100%;
  }

  .secondary-ip {
    font-size: clamp(1rem, 5vw, 1.5rem);
  }

  .error-box {
    width: 100%;
    margin-top: 18px;
    padding: 16px;
  }

  .ad-wrap {
    margin-top: 36px;
    min-height: 90px;
  }

  .footer {
    gap: 14px;
    padding: 20px 12px;
  }
}