/* ===== KHLab — Cyber Lab theme ===== */

:root{
  --bg: #07070b;
  --bg-soft: #0c0c14;
  --surface: rgba(255,255,255,.045);
  --surface-strong: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.09);
  --border-strong: rgba(255,255,255,.18);

  --text: #f3f1fb;
  --text-dim: #a29fb3;
  --text-faint: #6c6980;

  --violet: #7c5cff;
  --violet-2: #a897ff;
  --cyan: #29e0d1;
  --pink: #ff5fa2;
  --blue: #4c8dff;
  --green: #35e0a1;

  --grad: linear-gradient(90deg, var(--violet-2), var(--cyan));

  --font-display: 'Michroma', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius: 16px;
  --radius-sm: 10px;
  --wrap: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg{ display: block; max-width: 100%; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4,p{ margin: 0; }

.wrap{ max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

::selection{ background: var(--violet); color: #fff; }

/* ---------- background fx ---------- */
.bg-fx{ position: fixed; inset: 0; z-index: -1; overflow: hidden; background: var(--bg); }
.blob{
  position: absolute;
  width: 60vmax; height: 60vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .32;
  will-change: transform;
}
.blob-a{
  top: -20vmax; left: -12vmax;
  background: radial-gradient(circle at 30% 30%, var(--violet), transparent 65%);
  animation: drift-a 26s ease-in-out infinite alternate;
}
.blob-b{
  bottom: -25vmax; right: -15vmax;
  background: radial-gradient(circle at 70% 70%, var(--cyan), transparent 65%);
  animation: drift-b 30s ease-in-out infinite alternate;
}
@keyframes drift-a{ from{ transform: translate(0,0); } to{ transform: translate(6vmax, 8vmax); } }
@keyframes drift-b{ from{ transform: translate(0,0); } to{ transform: translate(-7vmax, -6vmax); } }
@media (prefers-reduced-motion: reduce){ .blob{ animation: none !important; } }

.grid-overlay{
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
}

/* ---------- shared bits ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{ content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--grad); flex: 0 0 auto; }

.grad-text{
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn{
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn:active{ transform: scale(.97); }
.btn-primary{
  background: var(--grad);
  color: #06060a;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08) inset, 0 8px 24px -8px rgba(124,92,255,.55);
}
.btn-primary:hover{ box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 10px 30px -6px rgba(41,224,209,.55); transform: translateY(-1px); }
.btn-outline{
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-outline:hover{ border-color: var(--cyan); color: var(--cyan); }
.btn-ghost{
  background: var(--surface);
  color: var(--text-dim);
  border-color: var(--border);
}
.btn-ghost:hover{ color: var(--text); border-color: var(--border-strong); }
.btn-small{ padding: 9px 16px; font-size: 13.5px; }

/* ---------- nav ---------- */
.nav{
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.nav.scrolled{
  background: rgba(7,7,11,.72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav-inner{ display: flex; align-items: center; gap: 28px; padding: 18px 24px; }
.brand{ display: flex; align-items: center; gap: 10px; margin-right: auto; }
.brand-mark{
  font-family: var(--font-display);
  font-size: 15px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 9px;
  background: var(--grad);
  color: #06060a;
}
.brand-name{ font-family: var(--font-display); font-size: 14.5px; letter-spacing: .02em; }
.nav-links{ display: flex; gap: 26px; }
.nav-links a{ font-size: 14.5px; color: var(--text-dim); transition: color .18s ease; }
.nav-links a:hover{ color: var(--text); }
.nav-cta{ margin-left: 4px; }
.burger{ display: none; flex-direction: column; gap: 5px; width: 34px; height: 34px; background: none; border: none; cursor: pointer; padding: 0; margin-left: 4px; }
.burger span{ width: 100%; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-mobile{
  display: none; flex-direction: column; gap: 2px;
  padding: 6px 24px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(7,7,11,.92);
}
.nav-mobile a{ padding: 12px 4px; font-size: 15px; color: var(--text-dim); border-top: 1px solid var(--border); }
.nav-mobile a:first-child{ border-top: none; }
.nav.open .nav-mobile{ display: flex; }

@media (max-width: 860px){
  .nav-links, .nav-cta{ display: none; }
  .burger{ display: flex; }
}

/* ---------- hero ---------- */
.hero{ padding: 96px 0 76px; position: relative; }
.hero-inner{ max-width: 760px; }
.hero h1{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(34px, 5.6vw, 58px);
  line-height: 1.1;
  letter-spacing: -.01em;
  text-wrap: balance;
  margin-bottom: 22px;
}
.hero-sub{
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 58ch;
  margin-bottom: 34px;
}
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats{ display: flex; gap: 40px; flex-wrap: wrap; }
.stat{ display: flex; flex-direction: column; gap: 4px; }
.stat-num{ font-family: var(--font-display); font-size: 20px; color: var(--text); }
.stat-label{ font-size: 13px; color: var(--text-faint); max-width: 16ch; }

/* ---------- reveal-on-scroll ---------- */
.reveal{ opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ---------- section head ---------- */
.section-head{ max-width: 620px; margin-bottom: 48px; }
.section-head h2, .about h2{
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  text-wrap: balance;
  margin-bottom: 14px;
}
.section-sub{ color: var(--text-dim); font-size: 15.5px; line-height: 1.7; }

section{ padding: 88px 0; position: relative; }

/* ---------- product cards ---------- */
.product-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.card:hover{ border-color: var(--border-strong); transform: translateY(-3px); background: var(--surface-strong); }

.product-card{ display: flex; flex-direction: column; }
.card-top{ display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.app-icon{
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  color: #06060a;
}
.app-icon svg{ width: 24px; height: 24px; }
.icon-scanly{ background: linear-gradient(135deg, var(--violet), var(--violet-2)); }
.icon-focusly{ background: linear-gradient(135deg, var(--cyan), #7fffe8); }
.icon-numsly{ background: linear-gradient(135deg, var(--blue), #8ab8ff); }
.icon-taply{ background: linear-gradient(135deg, var(--pink), #ffa1c8); }
.icon-lockly{ background: linear-gradient(135deg, var(--green), #a4f7d3); }

.tag{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 999px;
}
.app-icon-badge{
  position: absolute; top: -1px; right: 22px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--grad);
  color: #06060a;
}

.product-card h3{
  font-family: var(--font-display);
  font-size: 17px;
  margin-bottom: 10px;
  letter-spacing: .01em;
}
.card-desc{ color: var(--text-dim); font-size: 14px; line-height: 1.65; margin-bottom: 16px; }
.feature-list{ display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.feature-list li{
  font-size: 13.5px;
  color: var(--text-dim);
  padding-left: 22px;
  position: relative;
}
.feature-list li::before{
  content: '';
  position: absolute; left: 0; top: 6px;
  width: 12px; height: 12px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--violet-2), var(--cyan));
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / contain no-repeat;
}
.card-actions{ display: flex; gap: 10px; flex-wrap: wrap; margin-top: auto; }

/* ---------- premium ---------- */
.premium-panel{
  background: linear-gradient(160deg, rgba(124,92,255,.10), rgba(41,224,209,.06));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
}
.premium-panel h2{
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  text-wrap: balance;
}
.pay-methods{ display: flex; flex-direction: column; gap: 18px; margin-top: 28px; }
.pay-method{ display: flex; gap: 14px; align-items: flex-start; }
.pay-icon{
  flex: 0 0 auto; width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  font-size: 17px;
}
.pay-method strong{ font-size: 14.5px; }
.pay-method p{ font-size: 13.5px; color: var(--text-dim); line-height: 1.6; margin-top: 4px; }

.premium-tiers{ display: flex; flex-direction: column; gap: 16px; }
.tier-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
  position: relative;
}
.tier-highlight{ border-color: var(--cyan); background: rgba(41,224,209,.06); }
.tier-badge{
  position: absolute; top: -11px; right: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: var(--grad);
  color: #06060a;
  padding: 4px 10px;
  border-radius: 999px;
}
.tier-name{ font-family: var(--font-display); font-size: 14px; display: block; margin-bottom: 8px; }
.tier-desc{ font-size: 13.5px; color: var(--text-dim); line-height: 1.6; }

/* ---------- about ---------- */
.about-inner{ display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about-points{ display: flex; flex-direction: column; gap: 22px; }
.point{ display: flex; gap: 16px; padding-bottom: 22px; border-bottom: 1px solid var(--border); }
.point:last-child{ border-bottom: none; padding-bottom: 0; }
.point-num{ font-family: var(--font-mono); color: var(--cyan); font-size: 13px; flex: 0 0 auto; padding-top: 2px; }
.point p{ font-size: 14.5px; color: var(--text-dim); line-height: 1.65; }

/* ---------- footer ---------- */
footer{ border-top: 1px solid var(--border); padding-top: 56px; margin-top: 20px; }
.footer-inner{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p{ font-size: 13.5px; color: var(--text-faint); margin-top: 12px; max-width: 26ch; }
.footer-col h4{
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.footer-col{ display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ font-size: 14px; color: var(--text-dim); transition: color .18s ease; }
.footer-col a:hover{ color: var(--cyan); }
.footer-bottom{
  border-top: 1px solid var(--border);
  padding: 20px 24px 32px;
  font-size: 13px;
  color: var(--text-faint);
}

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .premium-panel{ grid-template-columns: 1fr; padding: 34px; gap: 34px; }
  .about-inner{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .hero{ padding: 64px 0 52px; }
  section{ padding: 64px 0; }
  .hero-stats{ gap: 26px; }
  .footer-inner{ grid-template-columns: 1fr; }
  .premium-panel{ padding: 26px; border-radius: 18px; }
}