:root {
  color-scheme: dark;
  --dns-bg: #06101b;
  --dns-bg-soft: rgba(12, 24, 40, 0.82);
  --dns-panel: rgba(8, 18, 31, 0.9);
  --dns-panel-strong: rgba(7, 15, 27, 0.96);
  --dns-text: #e7eef8;
  --dns-muted: #95a5bc;
  --dns-dim: #5f738f;
  --dns-line: rgba(74, 201, 240, 0.12);
  --dns-line-strong: rgba(74, 201, 240, 0.22);
  --dns-cyan: #4cc9f0;
  --dns-cyan-strong: #37b8e7;
  --dns-green: #7fe09b;
  --dns-warn: #ffd479;
  --dns-danger: #ff7a7a;
  --dns-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at 8% 10%, rgba(76, 201, 240, 0.16), transparent 28%),
    radial-gradient(circle at 92% 85%, rgba(127, 224, 155, 0.12), transparent 24%),
    linear-gradient(180deg, #07111d 0%, #050c16 100%);
  color: var(--dns-text);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.dns-background {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(76, 201, 240, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 201, 240, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.55));
}

.dns-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.dns-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 0;
}

.dns-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.dns-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.dns-topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dns-lang-toggle {
  display: inline-flex;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.dns-lang-btn {
  min-width: 46px;
  padding: 8px 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--dns-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

html[lang="de"] .dns-lang-btn[data-set-lang="de"],
html[lang="en"] .dns-lang-btn[data-set-lang="en"] {
  background: rgba(76, 201, 240, 0.14);
  color: var(--dns-text);
}

.dns-link-btn {
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--dns-muted);
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease;
}

.dns-link-btn:hover {
  color: var(--dns-text);
  background: rgba(255, 255, 255, 0.03);
}

.dns-link-btn-strong {
  border: 1px solid rgba(76, 201, 240, 0.22);
  background: rgba(76, 201, 240, 0.08);
  color: var(--dns-cyan);
}

.dns-main {
  padding: 136px 0 72px;
}

.dns-hero {
  margin-bottom: 32px;
}

.dns-hero-copy {
  max-width: 760px;
}

.dns-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--dns-cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.dns-kicker-line {
  width: 42px;
  height: 1px;
  background: rgba(76, 201, 240, 0.4);
}

.dns-hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  max-width: 760px;
}

.dns-lead {
  margin: 22px 0 0;
  max-width: 700px;
  color: var(--dns-muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.dns-record-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.dns-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(127, 224, 155, 0.16);
  background: rgba(127, 224, 155, 0.08);
  color: var(--dns-green);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.dns-pill-soft {
  border-color: rgba(76, 201, 240, 0.14);
  background: rgba(76, 201, 240, 0.06);
  color: var(--dns-text);
  font-weight: 600;
}

.dns-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 24px;
}

.dns-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, var(--dns-panel) 0%, var(--dns-panel-strong) 100%);
  box-shadow: var(--dns-shadow);
}

.dns-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at top right, rgba(76, 201, 240, 0.08), transparent 26%),
    linear-gradient(140deg, rgba(76, 201, 240, 0.06), transparent 24%);
}

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

.dns-form-card,
.dns-results-card {
  padding: 28px;
}

.dns-field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px;
  gap: 16px;
}

.dns-field {
  display: grid;
  gap: 10px;
}

.dns-field-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dns-muted);
}

.dns-field input,
.dns-field select {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid rgba(76, 201, 240, 0.12);
  border-radius: 16px;
  outline: none;
  background: rgba(255, 255, 255, 0.03);
  color: var(--dns-text);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease;
}

.dns-field select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 46px;
  background-color: rgba(13, 27, 45, 0.96);
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 5.25L7 8.75L10.5 5.25' stroke='%2395a5bc' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat, no-repeat;
  background-position: center, right 14px center;
  background-size: auto, 14px 14px;
  color-scheme: dark;
  cursor: pointer;
}

.dns-field select option,
.dns-field select optgroup {
  background: #0d1724;
  color: var(--dns-text);
}

.dns-field select option:checked,
.dns-field select option:hover,
.dns-field select option:focus {
  background: #15304b;
  color: var(--dns-text);
}

.dns-field input::placeholder {
  color: rgba(149, 165, 188, 0.66);
}

.dns-field input:focus,
.dns-field select:focus {
  border-color: rgba(76, 201, 240, 0.34);
  box-shadow: 0 0 0 4px rgba(76, 201, 240, 0.08);
  background: rgba(255, 255, 255, 0.045);
}

.dns-form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
}

.dns-submit-btn {
  min-height: 54px;
  padding: 0 24px;
  border: 0;
  border-radius: 18px;
  background:
    linear-gradient(135deg, var(--dns-cyan) 0%, var(--dns-cyan-strong) 100%);
  color: #04121e;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow: 0 18px 40px rgba(76, 201, 240, 0.22);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    filter 0.2s ease;
}

.dns-submit-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 22px 48px rgba(76, 201, 240, 0.28);
}

.dns-submit-btn:disabled {
  cursor: wait;
  transform: none;
  filter: saturate(0.8);
  box-shadow: 0 14px 30px rgba(76, 201, 240, 0.14);
}

.dns-form-hint {
  margin: 0;
  color: var(--dns-dim);
  line-height: 1.55;
  font-size: 0.95rem;
}

.dns-example-block {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.dns-example-label {
  display: block;
  margin-bottom: 12px;
  color: var(--dns-muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dns-example-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dns-example-btn {
  padding: 11px 14px;
  border: 1px solid rgba(76, 201, 240, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--dns-text);
  font-size: 0.92rem;
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease;
}

.dns-example-btn:hover {
  border-color: rgba(76, 201, 240, 0.25);
  background: rgba(76, 201, 240, 0.08);
  color: var(--dns-cyan);
}

.dns-results-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.dns-results-kicker {
  margin: 0 0 8px;
  color: var(--dns-dim);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.dns-results-head h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.dns-meta-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.dns-meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 11px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  color: var(--dns-muted);
  font-size: 0.82rem;
}

.dns-meta-chip strong {
  margin-left: 6px;
  color: var(--dns-text);
  font-weight: 700;
}

.dns-status-note,
.dns-error-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: 18px;
  line-height: 1.6;
}

.dns-status-note {
  border: 1px solid rgba(76, 201, 240, 0.08);
  background: rgba(76, 201, 240, 0.05);
  color: var(--dns-muted);
}

.dns-error-note {
  border: 1px solid rgba(255, 122, 122, 0.16);
  background: rgba(255, 122, 122, 0.08);
  color: #ffd3d3;
}

.dns-results-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.dns-result-item {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.02);
}

.dns-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.dns-result-index {
  color: var(--dns-cyan);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.dns-result-accent {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--dns-green) 0%, rgba(127, 224, 155, 0.2) 100%);
  box-shadow: 0 0 18px rgba(127, 224, 155, 0.3);
}

.dns-result-fields {
  display: grid;
  gap: 10px;
}

.dns-result-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.dns-result-key {
  color: var(--dns-dim);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dns-result-value {
  min-width: 0;
  color: var(--dns-text);
  font-family: "Consolas", "SFMono-Regular", "Menlo", monospace;
  line-height: 1.6;
  word-break: break-word;
}

.dns-help-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  margin-top: 24px;
  padding: 28px;
}

.dns-help-copy h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.04em;
}

.dns-help-copy p {
  margin: 14px 0 0;
  color: var(--dns-muted);
  line-height: 1.7;
}

.dns-help-list {
  display: grid;
  gap: 12px;
}

.dns-help-item {
  padding: 16px 18px;
  border: 1px solid rgba(127, 224, 155, 0.12);
  border-radius: 18px;
  background: rgba(127, 224, 155, 0.05);
  color: var(--dns-text);
  line-height: 1.6;
}

.port-reference-card {
  margin-top: 24px;
  padding: 28px;
}

.port-reference-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 20px;
  align-items: end;
}

.port-reference-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.04em;
}

.port-reference-lead {
  margin: 0;
  color: var(--dns-muted);
  line-height: 1.7;
}

.port-reference-table-wrap {
  margin-top: 22px;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.02);
}

.port-reference-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.port-reference-table th,
.port-reference-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: top;
}

.port-reference-table th {
  color: var(--dns-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.02);
}

.port-reference-table td {
  color: var(--dns-text);
  line-height: 1.65;
}

.port-reference-table tbody tr:last-child td {
  border-bottom: 0;
}

.port-reference-port {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(76, 201, 240, 0.14);
  background: rgba(76, 201, 240, 0.08);
  color: var(--dns-cyan);
  font-family: "Consolas", "SFMono-Regular", "Menlo", monospace;
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 920px) {
  .dns-topbar,
  .dns-form-actions,
  .dns-results-head,
  .dns-help-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .dns-grid,
  .dns-help-card,
  .port-reference-head {
    grid-template-columns: 1fr;
  }

  .dns-topbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .dns-field-grid {
    grid-template-columns: 1fr;
  }

  .dns-field-type {
    max-width: 220px;
  }

  .dns-meta-chips {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .dns-shell {
    width: min(100%, calc(100% - 20px));
  }

  .dns-topbar {
    padding-top: 16px;
  }

  .dns-main {
    padding-top: 108px;
    padding-bottom: 52px;
  }

  .dns-form-card,
  .dns-results-card,
  .dns-help-card,
  .port-reference-card {
    padding: 20px;
    border-radius: 22px;
  }

  .dns-form-actions {
    gap: 12px;
  }

  .dns-submit-btn {
    width: 100%;
    justify-content: center;
  }

  .dns-form-hint {
    font-size: 0.9rem;
  }

  .dns-result-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}