@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─── RESET ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg, video { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }

/* ─── DESIGN TOKENS ──────────────────────────────────────────────────── */
:root {
  --clr-bg:        #f8f8f9;
  --clr-surface:   #ffffff;
  --clr-border:    #e4e4e8;
  --clr-ink-900:   #18181c;
  --clr-ink-700:   #3a3a44;
  --clr-ink-500:   #6b6b78;
  --clr-ink-300:   #aeaeba;
  --clr-accent:    #8b2fc9;       /* ~306° violet-magenta */
  --clr-accent-lt: #f4ecfc;
  --clr-accent-dk: #6a1fa0;
  --clr-code-bg:   #f0edf6;

  --ff-body:  'Inter', system-ui, sans-serif;
  --ff-mono:  'JetBrains Mono', 'Fira Mono', monospace;

  --sp-2xs: clamp(0.25rem, 0.5vw, 0.375rem);
  --sp-xs:  clamp(0.5rem,  1vw,   0.75rem);
  --sp-sm:  clamp(0.75rem, 1.5vw, 1rem);
  --sp-md:  clamp(1rem,    2vw,   1.5rem);
  --sp-lg:  clamp(1.5rem,  3vw,   2.25rem);
  --sp-xl:  clamp(2rem,    4vw,   3.5rem);
  --sp-2xl: clamp(3rem,    6vw,   5.5rem);
  --sp-3xl: clamp(4rem,    8vw,   8rem);

  --fs-xs:   clamp(0.7rem,   1vw,   0.8rem);
  --fs-sm:   clamp(0.8rem,   1.2vw, 0.9rem);
  --fs-base: clamp(0.9rem,   1.4vw, 1rem);
  --fs-md:   clamp(1rem,     1.6vw, 1.125rem);
  --fs-lg:   clamp(1.125rem, 2vw,   1.375rem);
  --fs-xl:   clamp(1.375rem, 2.5vw, 1.75rem);
  --fs-2xl:  clamp(1.75rem,  3.5vw, 2.5rem);
  --fs-3xl:  clamp(2.25rem,  5vw,   3.75rem);
  --fs-4xl:  clamp(2.75rem,  6.5vw, 5rem);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-xs: 0 1px 3px rgba(0,0,0,.06);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.12);

  --transition: 180ms ease;
  --container-pad: clamp(1.25rem, 5vw, 3rem);
}

/* ─── BASE ───────────────────────────────────────────────────────────── */
body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--clr-ink-700);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

/* ─── CONTAINER ──────────────────────────────────────────────────────── */
.lk-wrap {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ─── TYPOGRAPHY ─────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--ff-body);
  color: var(--clr-ink-900);
  line-height: 1.18;
  letter-spacing: -0.025em;
  font-weight: 700;
}
h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); font-weight: 600; }
h5 { font-size: var(--fs-md); font-weight: 600; }

p { color: var(--clr-ink-700); max-width: 68ch; }
p + p { margin-top: var(--sp-sm); }

.lk-lead {
  font-size: var(--fs-lg);
  color: var(--clr-ink-500);
  font-weight: 400;
  line-height: 1.55;
  max-width: 58ch;
}

.lk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--clr-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}
.lk-eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  flex-shrink: 0;
}

code, .lk-mono {
  font-family: var(--ff-mono);
  font-size: 0.88em;
  background: var(--clr-code-bg);
  color: var(--clr-accent-dk);
  padding: 0.15em 0.45em;
  border-radius: var(--radius-sm);
  border: 1px solid #ddd4f0;
}

/* ─── LINKS ──────────────────────────────────────────────────────────── */
.lk-link {
  color: var(--clr-accent);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.lk-link:hover { border-color: var(--clr-accent); color: var(--clr-accent-dk); }

/* ─── BUTTONS ────────────────────────────────────────────────────────── */
.lk-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  font-family: var(--ff-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.72em 1.6em;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.lk-btn:active { transform: translateY(1px); }

.lk-btn--primary {
  background: var(--clr-accent);
  color: #ffffff;
  box-shadow: 0 2px 12px rgba(139,47,201,.30);
}
.lk-btn--primary:hover {
  background: var(--clr-accent-dk);
  box-shadow: 0 4px 20px rgba(139,47,201,.40);
}

.lk-btn--ghost {
  background: transparent;
  color: var(--clr-ink-700);
  border: 1.5px solid var(--clr-border);
}
.lk-btn--ghost:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: var(--clr-accent-lt);
}

.lk-btn--sm {
  font-size: var(--fs-xs);
  padding: 0.5em 1.1em;
}

/* ─── HEADER / NAV ───────────────────────────────────────────────────── */
.lk-topbar {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--sp-2xs) 0;
}
.lk-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  flex-wrap: wrap;
}
.lk-topbar__contact {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--clr-ink-500);
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}
.lk-topbar__contact a {
  color: var(--clr-ink-500);
  transition: color var(--transition);
}
.lk-topbar__contact a:hover { color: var(--clr-accent); }
.lk-topbar__links {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}
.lk-topbar__links a {
  font-size: var(--fs-xs);
  color: var(--clr-ink-500);
  transition: color var(--transition);
}
.lk-topbar__links a:hover { color: var(--clr-accent); }

.lk-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 248, 249, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
}
.lk-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
  padding-block: var(--sp-sm);
}
.lk-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  flex-shrink: 0;
  text-decoration: none;
}
.lk-nav__logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.lk-nav__wordmark {
  font-family: var(--ff-mono);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--clr-ink-900);
  letter-spacing: -0.03em;
}
.lk-nav__wordmark span { color: var(--clr-accent); }

.lk-nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}
.lk-nav__links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-ink-500);
  position: relative;
  transition: color var(--transition);
}
.lk-nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.lk-nav__links a:hover { color: var(--clr-ink-900); }
.lk-nav__links a:hover::after { width: 100%; }
.lk-nav__links a.is-active { color: var(--clr-ink-900); }
.lk-nav__links a.is-active::after { width: 100%; }

.lk-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-shrink: 0;
}

/* Mobile burger */
.lk-nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xs);
}
.lk-nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-ink-900);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ─── SECTIONS (generic) ─────────────────────────────────────────────── */
.lk-section {
  padding-block: var(--sp-2xl);
}
.lk-section--sm {
  padding-block: var(--sp-xl);
}
.lk-section--lg {
  padding-block: var(--sp-3xl);
}
.lk-section--surface {
  background: var(--clr-surface);
  border-block: 1px solid var(--clr-border);
}
.lk-section--dark {
  background: var(--clr-ink-900);
  border-block: none;
}
.lk-section--dark h2,
.lk-section--dark h3,
.lk-section--dark h4,
.lk-section--dark p,
.lk-section--dark .lk-lead { color: #e8e8f0; }
.lk-section--dark .lk-eyebrow { color: #c97ef5; }
.lk-section--dark .lk-eyebrow::before { background: #c97ef5; }

.lk-section--accent {
  background: var(--clr-accent-lt);
  border-block: 1px solid #ddd4f0;
}

/* ─── HERO ───────────────────────────────────────────────────────────── */
.lk-hero-section {
  padding-block: var(--sp-3xl) var(--sp-2xl);
  background: var(--clr-bg);
  overflow: hidden;
  position: relative;
}
.lk-hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(139,47,201,.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(139,47,201,.04) 0%, transparent 70%);
  pointer-events: none;
}

.lk-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl);
  align-items: center;
}
.lk-hero-grid__copy { max-width: 580px; }
.lk-hero-grid__title {
  font-size: var(--fs-4xl);
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-md);
  color: var(--clr-ink-900);
}
.lk-hero-grid__title em {
  font-style: normal;
  color: var(--clr-accent);
}
.lk-hero-grid__sub {
  font-size: var(--fs-lg);
  color: var(--clr-ink-500);
  line-height: 1.55;
  margin-bottom: var(--sp-lg);
  max-width: 50ch;
}
.lk-hero-grid__btns {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}
.lk-hero-grid__img-slot {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-border);
  background: var(--clr-surface);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.lk-hero-grid__img-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── CODE WINDOW DECORATION ─────────────────────────────────────────── */
.lk-code-window {
  background: var(--clr-ink-900);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,.07);
}
.lk-code-window__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.03);
}
.lk-code-window__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.lk-code-window__dot:nth-child(1) { background: #ff5f57; }
.lk-code-window__dot:nth-child(2) { background: #ffbd2e; }
.lk-code-window__dot:nth-child(3) { background: #28c840; }
.lk-code-window__title {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.35);
}
.lk-code-window__body {
  padding: var(--sp-md) var(--sp-lg);
  font-family: var(--ff-mono);
  font-size: clamp(0.72rem, 1.1vw, 0.85rem);
  line-height: 1.9;
  color: #c8c8e0;
  overflow-x: auto;
}
.lk-code-window__body .t-purple { color: #c97ef5; }
.lk-code-window__body .t-green  { color: #7ec98a; }
.lk-code-window__body .t-blue   { color: #7ab4f5; }
.lk-code-window__body .t-orange { color: #f5a97e; }
.lk-code-window__body .t-dim    { color: rgba(200,200,224,.4); }

/* ─── CARDS / FEATURE GRID ───────────────────────────────────────────── */
.lk-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}
.lk-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
}
.lk-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}

.lk-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-lg);
  transition: box-shadow var(--transition), border-color var(--transition),
              transform var(--transition);
}
.lk-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #c9b8e8;
  transform: translateY(-2px);
}
.lk-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-md);
  flex-shrink: 0;
}
.lk-card__icon svg { color: var(--clr-accent); }
.lk-card h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--sp-xs);
  color: var(--clr-ink-900);
}
.lk-card p {
  font-size: var(--fs-sm);
  color: var(--clr-ink-500);
  max-width: none;
}

/* ─── STATS ROW ──────────────────────────────────────────────────────── */
.lk-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}
.lk-stat {
  text-align: center;
  padding: var(--sp-lg) var(--sp-md);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
}
.lk-stat__num {
  display: block;
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--clr-accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--sp-xs);
}
.lk-stat__label {
  font-size: var(--fs-sm);
  color: var(--clr-ink-500);
  font-weight: 500;
}

/* ─── CTA BAND ───────────────────────────────────────────────────────── */
.lk-cta-band {
  padding-block: var(--sp-2xl);
  background: var(--clr-ink-900);
}
.lk-cta-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
  flex-wrap: wrap;
}
.lk-cta-band h2 { color: #f0f0f6; font-size: var(--fs-2xl); }
.lk-cta-band p { color: #8888a0; max-width: 44ch; font-size: var(--fs-md); }
.lk-cta-band__copy { flex: 1 1 300px; }
.lk-cta-band__actions {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* ─── FAQ ────────────────────────────────────────────────────────────── */
.lk-faq { max-width: 720px; margin-inline: auto; }
.lk-faq__item {
  border-bottom: 1px solid var(--clr-border);
  padding-block: var(--sp-md);
}
.lk-faq__item:first-child { border-top: 1px solid var(--clr-border); }
.lk-faq__q {
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--clr-ink-900);
  margin-bottom: var(--sp-xs);
  cursor: default;
}
.lk-faq__a {
  font-size: var(--fs-sm);
  color: var(--clr-ink-500);
  max-width: none;
  line-height: 1.7;
}

/* ─── SECTION HEADER ─────────────────────────────────────────────────── */
.lk-section-head {
  margin-bottom: var(--sp-xl);
}
.lk-section-head--center {
  text-align: center;
}
.lk-section-head--center .lk-eyebrow {
  justify-content: center;
}
.lk-section-head--center p {
  margin-inline: auto;
}
.lk-section-head h2 { margin-bottom: var(--sp-sm); }

/* ─── DIVIDER ────────────────────────────────────────────────────────── */
.lk-rule {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin-block: var(--sp-lg);
}

/* ─── BADGE ──────────────────────────────────────────────────────────── */
.lk-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  background: var(--clr-accent-lt);
  color: var(--clr-accent-dk);
  border: 1px solid #ddd4f0;
  border-radius: 100px;
  padding: 0.2em 0.75em;
}

/* ─── FOOTER ─────────────────────────────────────────────────────────── */
.lk-footer {
  background: var(--clr-ink-900);
  color: #8888a0;
  padding-top: var(--sp-2xl);
}
.lk-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--sp-lg) var(--sp-xl);
  padding-bottom: var(--sp-2xl);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.lk-footer__brand-name {
  font-family: var(--ff-mono);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: #f0f0f6;
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-sm);
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
}
.lk-footer__brand-name span { color: var(--clr-accent); }
.lk-footer__tagline {
  font-size: var(--fs-sm);
  color: #6666808;
  line-height: 1.6;
  margin-bottom: var(--sp-md);
  max-width: 28ch;
  color: #6a6a80;
}
.lk-footer__col-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: #c8c8e0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--ff-mono);
  margin-bottom: var(--sp-md);
}
.lk-footer__col-links { display: flex; flex-direction: column; gap: var(--sp-xs); }
.lk-footer__col-links a {
  font-size: var(--fs-sm);
  color: #6a6a80;
  transition: color var(--transition);
}
.lk-footer__col-links a:hover { color: #c97ef5; }

.lk-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  flex-wrap: wrap;
  padding-block: var(--sp-md);
}
.lk-footer__copy {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: #44445a;
}
.lk-footer__legal {
  display: flex;
  gap: var(--sp-md);
}
.lk-footer__legal a {
  font-size: var(--fs-xs);
  color: #44445a;
  transition: color var(--transition);
}
.lk-footer__legal a:hover { color: #6a6a80; }

/* ─── FORM ELEMENTS ──────────────────────────────────────────────────── */
.lk-input {
  width: 100%;
  padding: 0.65em 1em;
  font-size: var(--fs-sm);
  font-family: var(--ff-body);
  color: var(--clr-ink-900);
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.lk-input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(139,47,201,.12);
}
.lk-input::placeholder { color: var(--clr-ink-300); }

.lk-form-group { margin-bottom: var(--sp-md); }
.lk-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-ink-700);
  margin-bottom: var(--sp-2xs);
}

/* ─── CONTENT PROSE ──────────────────────────────────────────────────── */
.lk-prose h2 { margin-top: var(--sp-xl); margin-bottom: var(--sp-sm); }
.lk-prose h3 { margin-top: var(--sp-lg); margin-bottom: var(--sp-xs); }
.lk-prose p  { margin-bottom: var(--sp-sm); color: var(--clr-ink-700); }
.lk-prose ul, .lk-prose ol { padding-left: 1.4em; margin-bottom: var(--sp-sm); }
.lk-prose li { list-style: disc; margin-bottom: 0.35em; color: var(--clr-ink-700); }
.lk-prose ol li { list-style: decimal; }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .lk-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .lk-stats   { grid-template-columns: repeat(2, 1fr); }
  .lk-footer__grid { grid-template-columns: 1fr 1fr; }
  .lk-hero-grid { grid-template-columns: 1fr; }
  .lk-hero-grid__img-slot { max-width: 560px; }
}

@media (max-width: 768px) {
  .lk-grid-3 { grid-template-columns: 1fr; }
  .lk-grid-2 { grid-template-columns: 1fr; }
  .lk-grid-4 { grid-template-columns: 1fr; }
  .lk-stats  { grid-template-columns: repeat(2, 1fr); }

  .lk-nav__links  { display: none; }
  .lk-nav__actions .lk-btn--ghost { display: none; }
  .lk-nav__burger { display: flex; }

  .lk-topbar__contact { font-size: 0.65rem; }

  .lk-cta-band__inner { flex-direction: column; align-items: flex-start; }

  .lk-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .lk-stats { grid-template-columns: 1fr; }
  .lk-footer__grid { grid-template-columns: 1fr; }
  .lk-hero-grid__btns { flex-direction: column; align-items: flex-start; }
  .lk-topbar { display: none; }
}body{margin:0}html{-webkit-text-size-adjust:100%}img,svg,video{max-width:100%;height:auto}*{box-sizing:border-box}