:root {
  --bg: #0f172a;
  --card: #172033;
  --ink: #f8fafc;
  --muted: #a8b3c7;
  --line: rgba(255,255,255,.12);
  --accent: #38bdf8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(56,189,248,.2), transparent 30rem),
    var(--bg);
  line-height: 1.5;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 1rem;
}

/* ── Site header ── */
.site-header {
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: clamp(1.25rem, 4vw, 2rem);
  background:
    linear-gradient(135deg, rgba(56,189,248,.14), transparent 45%),
    rgba(23,32,51,.88);
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
}

.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 950;
  letter-spacing: -.04em;
}

.domain {
  color: var(--accent);
  font-weight: 850;
  margin-top: .1rem;
}

.version-stamp {
  color: var(--muted);
  font-size: .85rem;
  font-weight: 800;
  text-align: right;
  white-space: nowrap;
}

.kicker {
  margin: 0 0 .75rem;
  color: var(--accent);
  font-weight: 900;
}

h1 {
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: .9;
  letter-spacing: -.07em;
  margin: 0 0 1rem;
}

.header-body h1 { max-width: 850px; }

.intro {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.15rem;
  margin: 0;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.35rem;
}

.header-actions a { margin-top: 0; }

/* ── Global link/button style for index ── */
a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: .8rem 1rem;
  border-radius: 999px;
  background: #f8fafc;
  color: #0f172a;
  text-decoration: none;
  font-weight: 950;
  margin-top: .5rem;
}

.header-actions .secondary-link {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

/* ── Demo cards grid ── */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  display: flex;
  flex-direction: column;
  min-height: 290px;
  background: rgba(23,32,51,.88);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 1.25rem;
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
}

.number {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: var(--accent);
  color: #082f49;
  font-weight: 950;
  margin-bottom: 1rem;
}

h2 { margin: 0 0 .75rem; font-size: 1.35rem; }
p  { color: var(--muted); }

.card a {
  width: fit-content;
  margin-top: auto;
}

/* ── What I build ── */
.pitch {
  margin-top: 2rem;
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 1.25rem;
  background: rgba(255,255,255,.06);
}

code { color: #bae6fd; }

/* ── Contact ── */
.contact { margin-top: 2rem; }

.contact-inner {
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: clamp(2rem, 6vw, 3.5rem);
  background: linear-gradient(135deg, rgba(56,189,248,.10), transparent 50%), rgba(23,32,51,.88);
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
  text-align: center;
}

.contact-inner h2 {
  font-size: clamp(2rem, 6vw, 3.8rem);
  line-height: .95;
  letter-spacing: -.06em;
  margin-bottom: 1rem;
}

.contact-sub {
  max-width: 600px;
  margin: 0 auto 2rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.contact-options {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: .9rem 1.6rem;
  border-radius: 999px;
  font-weight: 950;
  text-decoration: none;
  font-size: 1rem;
  margin-top: 0;
}

.primary-btn  { background: var(--accent); color: #082f49; }
.ghost-btn    { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.contact-or   { color: var(--muted); font-weight: 800; }
.contact-note { margin: 1.25rem 0 0; color: var(--muted); font-size: .88rem; }

/* ── Responsive ── */
@media (max-width: 820px) {
  .header-top    { display: block; }
  .version-stamp { text-align: left; margin-top: .75rem; }
  .grid          { grid-template-columns: 1fr; }
  .card          { min-height: auto; }
  .card a        { margin-top: 1rem; }
}

.card-pain {
  color: var(--accent);
  font-size: .88rem;
  font-weight: 850;
  margin: 0 0 .5rem;
  opacity: .9;
}

.contact-pricing {
  color: var(--muted);
  font-size: .95rem;
  margin: 0 0 .5rem;
}
.contact-pricing strong {
  color: var(--ink);
  font-weight: 950;
}

/* ── Contact form ── */
.contact-form {
  width: 100%;
  max-width: 560px;
  margin: 1.5rem auto 0;
  display: grid;
  gap: 1rem;
  text-align: left;
}
.contact-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.contact-field {
  display: grid;
  gap: .35rem;
}
.contact-field label {
  font-size: .85rem;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.contact-field input,
.contact-field textarea {
  width: 100%;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: .85rem 1rem;
  font: inherit;
  font-size: .95rem;
  color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}
.contact-field input::placeholder,
.contact-field textarea::placeholder {
  color: var(--muted);
  opacity: .7;
}
.contact-field input:focus,
.contact-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56,189,248,.15);
}
.contact-field textarea {
  min-height: 110px;
  resize: vertical;
}
.contact-submit {
  width: 100%;
  min-height: 52px;
  background: var(--accent);
  color: #082f49;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 950;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
}
.contact-submit:hover { opacity: .88; transform: translateY(-1px); }
.contact-submit:active { transform: translateY(0); }
.contact-note {
  text-align: center;
  color: var(--muted);
  font-size: .82rem;
  margin: 0;
}

@media (max-width: 560px) {
  .contact-fields { grid-template-columns: 1fr; }
}