:root{
  --bg: #ffffff;
  --page: #f6f7fb;
  --text: #0b1220;
  --muted: #5b667a;
  --border: rgba(15, 23, 42, 0.10);

  --primary: #2563eb;
  --primary-weak: rgba(37, 99, 235, 0.10);

  --card: #ffffff;
  --radius: 14px;

  --container: 1040px;
}

*{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--page);
  color: var(--text);
  line-height: 1.6;
}

img{ display: block; max-width: 100%; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

/* Top bar */
.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 247, 251, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar__row{
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  letter-spacing: .2px;
}

.brand__mark{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 7px var(--primary-weak);
}

.nav{
  display: flex;
  gap: 8px;
}

.nav__link{
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  transition: background .15s ease, color .15s ease;
}

.nav__link:hover{
  background: rgba(255,255,255,0.70);
  color: var(--text);
}

/* Page layout */
.page{
  background: transparent;
}

.section{
  padding: 34px 0;
}

.section--soft{
  background: rgba(255,255,255,0.55);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

@media (max-width: 720px){
  .section__head{
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Typography */
.eyebrow{
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.h1{
  margin: 0 0 10px;
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.h1--tight{
  margin-bottom: 6px;
}

.h2{
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.lead{
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 62ch;
}

.lead--tight{
  margin-bottom: 12px;
}

.muted{
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* Hero */
.hero{
  padding: 36px 0 14px;
}

.hero__row{
  display: grid;
  grid-template-columns: 1fr;
}

.actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.75);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 14px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}

.btn:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,0.95);
  border-color: rgba(37, 99, 235, 0.25);
}

.btn--primary{
  background: var(--primary);
  border-color: transparent;
  color: #fff;
}

.btn--primary:hover{
  background: color-mix(in srgb, var(--primary) 92%, #000);
}

.btn--ghost{
  background: rgba(255,255,255,0.65);
}

/* Cards layout */
.cards{
  display: grid;
  gap: 12px;
}

.card{
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 14px;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color .12s ease, transform .12s ease;
}

.card:hover{
  transform: translateY(-1px);
  border-color: rgba(37, 99, 235, 0.28);
}

.card__icon{
  width: 86px;
  height: 86px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
}

.card__icon img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__body{
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card__top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.card__title{
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card__desc{
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 72ch;
}

.card__bottom{
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 900;
  font-size: 14px;
}

.card__link{
  color: var(--text);
  opacity: .92;
}

.card__arrow{
  opacity: .72;
}

/* Chips */
.chip{
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--primary-weak);
  font-weight: 900;
  font-size: 12px;
  color: var(--text);
}

.chip--soft{
  background: rgba(255,255,255,0.75);
}

/* Contact panel */
.panel{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.label{
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 900;
  margin-bottom: 6px;
}

.email{
  text-decoration: none;
  color: var(--text);
  font-weight: 900;
}

.email:hover{
  color: var(--primary);
}

/* Footer */
.footer{
  padding: 18px 0;
}

.footer__row{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.footer__links a{
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
}

.footer__links a:hover{
  color: var(--text);
}

/* App page header */
.back{
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.75);
  text-decoration: none;
  color: var(--muted);
  font-weight: 900;
  font-size: 14px;
}

.back:hover{
  color: var(--text);
  border-color: rgba(37, 99, 235, 0.25);
}

.apphead{
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

@media (max-width: 720px){
  .apphead{ grid-template-columns: 1fr; }
  .apphead__icon{ width: 92px; }
}

.apphead__icon{
  width: 92px;
  height: 92px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
}

.apphead__icon img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.meta{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.stack{
  margin-top: 12px;
  display: grid;
  gap: 12px;
}

.box{
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.box__head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

/* Prose */
.prose p{ margin: 10px 0; }
.prose ul{ margin: 10px 0 10px 18px; }
.prose h3{ margin: 14px 0 8px; }

/* Focus (keyboard) */
a:focus-visible, button:focus-visible{
  outline: 3px solid rgba(37,99,235,0.25);
  outline-offset: 2px;
  border-radius: 12px;
}