* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 32%),
    linear-gradient(180deg, #eef4ff 0%, #f8fbff 100%);
  color: var(--text);
}

:root {
  --bg: #eef4ff;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef2ff;

  --border: #dbe4f0;
  --input-bg: #ffffff;

  --success-bg: #dcfce7;
  --success-text: #166534;

  --error-bg: #fee2e2;
  --error-text: #991b1b;

  --warning-bg: #fff7ed;
  --warning-border: #fed7aa;
  --warning-text: #9a3412;

  --answer-bg: #f8fafc;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 32%),
    linear-gradient(180deg, #eef4ff 0%, #f8fbff 100%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  padding: 40px 20px;
}

.container {
  max-width: 980px;
  margin: 0 auto;
}

.hero {
  text-align: center;
  margin-bottom: 32px;
}

.badge {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  border: 1px solid rgba(79, 70, 229, 0.14);
}

h1 {
  font-size: 42px;
  margin: 0 0 12px;
  letter-spacing: -0.035em;
  font-weight: 800;
  line-height: 1.1;
}

.subtitle {
  color: var(--muted);
  font-size: 17px;
  margin: 0;
  font-weight: 500;
  line-height: 1.7;
}

.card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(219, 228, 240, 0.85);
  border-radius: 24px;
  box-shadow: 0 20px 55px rgba(15, 23, 42, 0.08);
  padding: 24px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.search-card {
  position: relative;
  z-index: 100;
}

.form {
  display: grid;
  grid-template-columns: 1fr 220px 150px;
  gap: 12px;
  align-items: start;
}

input {
  height: 52px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  font-size: 16px;
  padding: 0 16px;
  outline: none;
  width: 100%;
  color: var(--text);
}

input::placeholder {
  color: #94a3b8;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

button {
  font-family: Arial, sans-serif;
}

#checkButton {
  height: 52px;
  border-radius: 14px;
  border: none;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: white;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  padding: 0 16px;
  width: 100%;
  box-shadow: 0 12px 24px rgba(79, 70, 229, 0.25);
}

#checkButton:hover {
  background: linear-gradient(135deg, var(--primary-hover), #1d4ed8);
}

#checkButton:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.custom-select {
  position: relative;
  height: 52px;
  z-index: 50;
}

.select-trigger {
  width: 100%;
  height: 52px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
}

.select-trigger:hover {
  background: #f8faff;
  border-color: #b9c7f8;
}

.select-trigger span:first-child {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.select-trigger strong {
  font-size: 15px;
  line-height: 1.1;
  color: var(--text);
}

.select-trigger small {
  font-size: 12px;
  line-height: 1.2;
  color: var(--muted);
}

.select-menu {
  display: none;
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  z-index: 999;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
}

.custom-select.open .select-menu {
  display: grid;
  gap: 6px;
}

.select-option {
  width: 100%;
  min-height: 54px;
  height: auto;
  background: transparent;
  color: var(--text);
  border: none;
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  text-align: left;
  font-weight: 400;
}

.select-option:hover {
  background: #f4f7ff;
}

.select-option.active {
  background: var(--primary-soft);
}

.select-option strong {
  font-size: 15px;
  color: var(--text);
}

.select-option small {
  font-size: 12px;
  color: var(--muted);
}

.select-option.active strong,
.select-option.active small {
  color: var(--primary);
}

.meta {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.result-card {
  display: none;
  position: relative;
  z-index: 1;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.location {
  font-size: 18px;
  font-weight: 700;
}

.status {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.status.success {
  background: var(--success-bg);
  color: var(--success-text);
}

.status.error {
  background: var(--error-bg);
  color: var(--error-text);
}

.answers {
  display: grid;
  gap: 10px;
}

.answer {
  background: var(--answer-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  word-break: break-word;
}

.answer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.answer-value {
  font-family: Consolas, monospace;
  word-break: break-word;
}

.copy-button {
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--primary);
  border-radius: 10px;
  padding: 7px 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.copy-button:hover {
  background: var(--primary-soft);
}

.copy-button.copied {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: var(--success-bg);
}

.answer-warning {
  margin-top: 8px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.5;
}

.empty {
  color: var(--muted);
  background: var(--answer-bg);
  border-radius: 14px;
  padding: 16px;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.stat {
  background: #f1f5f9;
  border-radius: 12px;
  padding: 10px 12px;
  color: #334155;
  font-size: 14px;
}

.error-box {
  display: none;
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid #fecaca;
  border-radius: 16px;
  padding: 14px 16px;
  margin-top: 16px;
}

@media (max-width: 720px) {
  h1 {
    font-size: 32px;
  }

  .form {
    grid-template-columns: 1fr;
  }

  .result-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .answer-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }
}
.results-container {
  display: grid;
  gap: 18px;
}

.result-group-title {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  margin: 8px 0 -6px;
}

.dns-result-card {
  position: relative;
  z-index: 1;
}

.source-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}
.search-card {
  position: relative;
  z-index: 1000;
}

.results-container {
  display: grid;
  gap: 18px;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}

.custom-select {
  position: relative;
  z-index: 2000;
}

.select-menu {
  z-index: 3000;
}

.result-group-title {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  margin: 8px 0 -6px;
}

.dns-result-card {
  position: relative;
  z-index: 1;
}

.source-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}
.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.info-row .meta {
  margin-top: 0;
}

.user-ip {
  direction: ltr;
  text-align: right;
  font-family: Consolas, monospace;
}

@media (max-width: 720px) {
  .info-row {
    align-items: flex-start;
    flex-direction: column;  }

  .user-ip {
    text-align: left;
  }
}