/* automat.as — DNS Checker */
@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@600;700;800&family=Syne:wght@500;600;700;800&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --ink: #0b1220;
  --ink-soft: #1a2438;
  --paper: #f0f4f8;
  --paper-2: #e2e9f0;
  --line: #c8d3de;
  --muted: #4a5c70;
  --accent: #0f766e;
  --accent-bright: #14b8a6;
  --cta: #c2410c;
  --cta-hover: #f97316;
  --ok: #0f766e;
  --warn: #b45309;
  --err: #b91c1c;
  --radius: 2px;
  --max: 960px;
  --font-brand: "Lexend", sans-serif;
  --font-display: "Syne", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100svh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 10% -10%, color-mix(in srgb, var(--accent-bright) 18%, transparent), transparent 55%),
    radial-gradient(90% 60% at 100% 0%, color-mix(in srgb, var(--cta) 10%, transparent), transparent 50%),
    linear-gradient(180deg, #e8eef4 0%, var(--paper) 40%, var(--paper-2) 100%);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(color-mix(in srgb, var(--ink) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 6%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--ink);
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.top {
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
}

.nav {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.nav__brand {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav__brand:hover {
  color: var(--accent);
}

.nav__tool {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.intro {
  padding-bottom: 2rem;
  animation: rise 0.6s var(--ease) both;
}

.intro__brand {
  margin: 0 0 0.35rem;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.03em;
  color: var(--ink);
  line-height: 1.1;
}

.intro__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: -0.02em;
  color: var(--accent);
}

.intro__lead {
  margin: 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.0625rem;
}

.lookup {
  flex: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  animation: rise 0.7s var(--ease) 0.08s both;
}

.form__fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 7.5rem;
}

.field--grow {
  flex: 1 1 14rem;
}

.field__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input,
.field select {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: color-mix(in srgb, #fff 88%, var(--paper));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-bright) 28%, transparent);
}

.field input.is-invalid {
  border-color: var(--err);
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  padding: 0.75rem 1.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  color: #fff;
  background: var(--cta);
  border-radius: var(--radius);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), opacity 0.2s;
}

.btn:hover:not(:disabled) {
  background: var(--cta-hover);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.form__hint {
  margin: 0.85rem 0 0;
  font-size: 0.875rem;
  color: var(--muted);
  max-width: 40rem;
}

.ns-note {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--accent-bright) 10%, #fff);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line));
  border-radius: var(--radius);
  max-width: 40rem;
  line-height: 1.5;
}

.ns-note strong {
  color: var(--ink);
}

.ns-note code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.status {
  min-height: 1.4em;
  margin: 1rem 0 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.status--error {
  color: var(--err);
}

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 1.5rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
}

.summary__item strong {
  font-weight: 600;
  color: var(--ink);
}

.summary__item {
  color: var(--muted);
}

.table-wrap {
  margin-top: 1.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.results {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.results th {
  text-align: left;
  padding: 0.55rem 0.75rem 0.55rem 0;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.results td {
  padding: 0.85rem 0.75rem 0.85rem 0;
  vertical-align: top;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.results tr {
  animation: row-in 0.35s var(--ease) both;
}

.results tr:nth-child(1) { animation-delay: 0.02s; }
.results tr:nth-child(2) { animation-delay: 0.04s; }
.results tr:nth-child(3) { animation-delay: 0.06s; }
.results tr:nth-child(4) { animation-delay: 0.08s; }
.results tr:nth-child(5) { animation-delay: 0.1s; }
.results tr:nth-child(6) { animation-delay: 0.12s; }
.results tr:nth-child(7) { animation-delay: 0.14s; }
.results tr:nth-child(8) { animation-delay: 0.16s; }
.results tr:nth-child(9) { animation-delay: 0.18s; }
.results tr:nth-child(10) { animation-delay: 0.2s; }

.resolver-name {
  font-weight: 600;
  color: var(--ink);
}

.answer {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.45;
  word-break: break-word;
  max-width: 28rem;
}

.answer__empty {
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.ttl,
.ms {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
  white-space: nowrap;
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius);
  white-space: nowrap;
}

.badge--ok {
  color: var(--ok);
  background: color-mix(in srgb, var(--ok) 12%, transparent);
}

.badge--diff {
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 14%, transparent);
}

.badge--err {
  color: var(--err);
  background: color-mix(in srgb, var(--err) 12%, transparent);
}

.badge--nx {
  color: var(--muted);
  background: color-mix(in srgb, var(--muted) 12%, transparent);
}

.footer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, #fff 50%, var(--paper));
}

.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--muted);
}

.footer__brand {
  font-family: var(--font-brand);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.footer__brand:hover {
  color: var(--accent);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@media (max-width: 640px) {
  .form__fields {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .results th:nth-child(2),
  .results td:nth-child(2) {
    display: none;
  }
}