/* The landing of Vkupi: one page, no build step, no external requests. */
:root {
  --bg: #ffffff;
  --bg-alt: #f4f6fa;
  --ink: #131722;
  --muted: #5b6474;
  --line: #dfe4ec;
  --accent: #1f5eff;
  --accent-ink: #ffffff;
  --card: #ffffff;
  --ok: #0f7a3d;
  --bad: #b3261e;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --bg-alt: #151a23;
    --ink: #eef1f6;
    --muted: #a3acbb;
    --line: #283041;
    --accent: #7aa2ff;
    --accent-ink: #0b1020;
    --card: #171c26;
    --ok: #6fd69a;
    --bad: #ff8a80;
  }
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font:
    17px/1.6 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  -webkit-text-size-adjust: 100%;
}
h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  letter-spacing: -0.025em;
  max-width: 16ch;
}
h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
}
h3 {
  font-size: 1.1rem;
}
p {
  margin: 0 0 1em;
}
a {
  color: var(--accent);
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
}
.mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background:
    linear-gradient(135deg, transparent 46%, var(--accent-ink) 46% 56%, transparent 56%) 0 0 / 50%
      100% no-repeat,
    linear-gradient(225deg, transparent 46%, var(--accent-ink) 46% 56%, transparent 56%) 100% 0 /
      50% 100% no-repeat,
    var(--accent);
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
nav a:hover,
nav a:focus-visible {
  color: var(--ink);
}
nav {
  align-items: center;
}
.lang {
  width: auto;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
}

.hero,
.band {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 20px;
}
.hero {
  padding-top: 40px;
}
.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.8em;
}
.lead {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 62ch;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 1.6em;
}
.button {
  display: inline-block;
  padding: 12px 22px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.button:hover,
.button:focus-visible {
  filter: brightness(1.08);
}
.button[disabled] {
  opacity: 0.6;
  cursor: default;
}
.link {
  font-weight: 600;
}
.note {
  margin-top: 2.2em;
  color: var(--muted);
  font-size: 0.95rem;
}
.sub {
  color: var(--muted);
  max-width: 62ch;
}

.alt {
  max-width: none;
  background: var(--bg-alt);
  border-block: 1px solid var(--line);
}
.alt > * {
  max-width: 1040px;
  margin-inline: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.grid article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}
.grid p,
.steps p {
  color: var(--muted);
  margin: 0;
  font-size: 0.98rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
  margin-top: 28px;
  margin-bottom: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
}
.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 0.9rem;
}
.status {
  margin-top: 36px;
  margin-bottom: 0;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  background: var(--card);
  border-radius: 0 10px 10px 0;
}

form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  max-width: 760px;
  margin-top: 24px;
}
label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 600;
}
.optional {
  font-weight: 400;
  color: var(--muted);
}
input,
textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 400;
}
input:focus-visible,
textarea:focus-visible,
.button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
textarea {
  resize: vertical;
}
.wide {
  grid-column: 1 / -1;
}
.send {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
}
.send p {
  margin: 0;
}
#contact-status.ok {
  color: var(--ok);
}
#contact-status.bad {
  color: var(--bad);
}
/* kept from people and from the keyboard; a script that fills every field gives itself away */
.trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.button.small {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
}
.link.plain {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}
dialog {
  width: min(460px, calc(100vw - 32px));
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
  color: var(--ink);
}
dialog::backdrop {
  background: rgba(8, 12, 20, 0.55);
}
dialog form {
  display: block;
  margin: 0;
}
dialog h2 {
  font-size: 1.35rem;
}
dialog .sub {
  font-size: 0.95rem;
}
.address {
  display: flex;
  align-items: center;
  gap: 6px;
}
.address input {
  flex: 1 1 auto;
  min-width: 0;
}
.domain {
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}
#signin-status {
  min-height: 1.4em;
  margin: 10px 0 0;
  color: var(--bad);
  font-size: 0.92rem;
}

footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 40px;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--line);
}
footer p {
  margin: 0;
}

@media (max-width: 520px) {
  body {
    font-size: 16px;
  }
  .hero,
  .band {
    padding: 40px 16px;
  }
  .top {
    padding: 14px 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}