/* ublo.com: domain for sale landing page
   No external fonts, no tracking, no framework. */

:root {
  --bg: #ffffff;
  --bg-alt: #f4f5f7;
  --text: #1a1c20;
  --text-muted: #4b4f58;
  --accent: #0a5c4a;
  --accent-contrast: #ffffff;
  --border: #d8dbe0;
  --focus: #1a6fd6;
  --max-width: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --bg-alt: #1d2025;
    --text: #eef0f2;
    --text-muted: #b4b9c2;
    --accent: #5fd6b5;
    --accent-contrast: #0a2b22;
    --border: #33373f;
    --focus: #7cb2ff;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.125rem);
}

img, svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

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

.lang-switch {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.lang-switch a {
  display: inline-block;
  padding: 0.35rem 0.6rem;
  border-radius: 0.35rem;
  text-decoration: none;
  color: var(--text-muted);
  border: 1px solid transparent;
}

.lang-switch a[aria-current="true"] {
  color: var(--text);
  font-weight: 700;
  border-color: var(--border);
  background: var(--bg-alt);
}

.lang-switch a:hover {
  border-color: var(--border);
}

main {
  padding: 2.5rem 0 3rem;
}

.hero {
  padding: 1rem 0 2rem;
  border-top: none;
}

.hero h1 {
  font-size: clamp(1.8rem, 1.5rem + 1.6vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
}

.hero .tagline {
  font-size: 1.15em;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-contrast);
  text-decoration: none;
  font-weight: 700;
  padding: 0.85rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  font-size: 1rem;
  cursor: pointer;
}

.button:hover {
  opacity: 0.9;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

section {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

section h2 {
  font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  margin: 0 0 1rem;
}

.facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.facts li {
  padding-left: 1.6rem;
  position: relative;
}

.facts li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.history h3,
.legal h2,
.legal h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.6rem;
}

.legal h3 {
  margin-top: 1.5rem;
}

.history p,
.legal p {
  color: var(--text-muted);
}

.linkedin-note {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
}

form.contact-form {
  display: grid;
  gap: 1rem;
  max-width: 32rem;
}

form.contact-form[hidden] {
  display: none;
}

.field {
  display: grid;
  gap: 0.35rem;
}

label {
  font-weight: 600;
}

input[type="text"],
input[type="email"],
textarea {
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  background: var(--bg);
  color: var(--text);
  width: 100%;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: 0.9em;
  color: var(--text-muted);
}

.form-status {
  border-radius: 0.5rem;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1rem;
}

.form-status.success {
  background: #e4f5ee;
  color: #0a5c4a;
  border: 1px solid #b3ddca;
}

.form-status.error {
  background: #fbe9e7;
  color: #8c2a1e;
  border: 1px solid #f1c0b8;
}

@media (prefers-color-scheme: dark) {
  .form-status.success {
    background: #103a2e;
    color: #8fe3c4;
    border-color: #1f5c47;
  }
  .form-status.error {
    background: #3a1712;
    color: #f3b3a6;
    border-color: #5c2b20;
  }
}

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  color: var(--text-muted);
  font-size: 0.9em;
}

footer.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
}

noscript .form-note {
  display: block;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--bg-alt);
}