/* Airus Solutions — site styles */

:root {
  --bg: #F6F4EF;
  --ink: #10151D;
  --muted: #5A6472;
  --blue: #2F52D9;
  --blue-soft: #8FA3E8;
  --paper: #fff;
  --screen: #FDFCF9;
  --line: rgba(16, 21, 29, 0.12);
  --line-soft: rgba(16, 21, 29, 0.1);
  --font-sans: 'Archivo', sans-serif;
  --font-serif: 'Instrument Serif', serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--blue); }
::selection { background: var(--blue); color: #fff; }

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

section, header[id] { scroll-margin-top: 84px; }

.serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

/* ---------- Buttons & pills ---------- */

.btn {
  display: inline-block;
  padding: 15px 26px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 700;
  font-size: 15px;
}
.btn:hover { background: var(--blue); color: #fff; }

.btn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid rgba(16, 21, 29, 0.25);
}
.btn--outline:hover {
  background: transparent;
  border-color: var(--blue);
  color: var(--blue);
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(246, 244, 239, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.logo-mark {
  display: block;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 600;
}

.nav__cta {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
}
.nav__cta:hover { background: var(--blue); color: #fff; }

/* ---------- Hero ---------- */

.hero {
  padding: 96px 48px 72px;
  max-width: 1200px;
  margin: 0 auto;
}

.kicker {
  margin: 0 0 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}

.hero h1 {
  margin: 0;
  font-size: clamp(48px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 800;
  max-width: 15ch;
  text-wrap: balance;
}
.hero h1 .serif { color: var(--blue); }

.hero__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-top: 36px;
}

.hero__lede {
  margin: 0;
  font-size: 19px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 46ch;
  text-wrap: pretty;
}

.hero__actions { display: flex; gap: 12px; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 64px;
}

.stat { background: var(--bg); padding: 24px 28px; }
.stat__value { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; }
.stat__label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ---------- Section headers ---------- */

.section { max-width: 1200px; margin: 0 auto; padding: 48px 48px 32px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  border-top: 2px solid var(--ink);
  padding-top: 20px;
}
.section-head h2 {
  margin: 0;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.section-head p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- App cards ---------- */

/* Sticky card deck: each app card pins below the nav and is covered by the next */
.stack {
  display: grid;
  gap: 28px;
  margin-top: 44px;
}

.app {
  position: sticky;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: center;
  padding: 40px 48px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--accent-soft), rgba(255, 255, 255, 0) 55%), var(--paper);
  border: 1px solid var(--line-soft);
  box-shadow: 0 24px 60px -32px rgba(16, 21, 29, 0.28);
  overflow: hidden;
  transform-origin: top center;
}
.app:nth-child(1) { top: 80px; }
.app:nth-child(2) { top: 90px; }
.app:nth-child(3) { top: 100px; }
.app:nth-child(4) { top: 110px; }
.app:nth-child(5) { top: 120px; }

.app__num {
  position: absolute;
  top: 24px;
  right: 36px;
  font-size: 92px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--accent);
  opacity: 0.12;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}

.app--flip { grid-template-columns: 300px 1fr; }
.app--flip .app__body { order: 2; }
.app--flip .app__phone { order: 1; }

.app--skyflight { --accent: #2F52D9; --accent-soft: rgba(47, 82, 217, 0.1); }
.app--first10steps { --accent: #1E7F5C; --accent-soft: rgba(30, 127, 92, 0.1); }
.app--deckdeck { --accent: #6D3FC8; --accent-soft: rgba(109, 63, 200, 0.1); }
.app--nutrifitr { --accent: #C2531B; --accent-soft: rgba(194, 83, 27, 0.1); }
.app--skygazer { --accent: #1273A6; --accent-soft: rgba(18, 115, 166, 0.1); }

.app__body { display: flex; flex-direction: column; gap: 16px; }

.app__title { display: flex; align-items: center; gap: 16px; }

.app__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
}

.app__title h3 {
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.app__tagline {
  margin: 2px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.app__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 52ch;
  text-wrap: pretty;
}

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

.tag {
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.tag--muted { background: rgba(16, 21, 29, 0.06); color: var(--muted); }

.app__links { display: flex; gap: 12px; margin-top: 6px; }

.store-btn {
  font-size: 14px;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--bg);
}
.store-btn:hover { background: var(--accent); color: #fff; }

.store-btn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid rgba(16, 21, 29, 0.25);
}
.store-btn--outline:hover {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Phone mock ---------- */

.app__phone { justify-self: center; }

.phone {
  width: 250px;
  aspect-ratio: 9 / 19;
  border-radius: 36px;
  background: var(--ink);
  padding: 9px;
  box-shadow: 0 18px 40px -18px rgba(16, 21, 29, 0.38);
}

.phone__screen {
  width: 100%;
  height: 100%;
  border-radius: 27px;
  background: var(--screen);
  overflow: hidden;
}

/* Swipeable screenshot carousel inside the phone frame */
.shots {
  display: flex;
  height: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.shots::-webkit-scrollbar { display: none; }

.shots img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.shots-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
  margin-top: 18px;
}
.shots-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(16, 21, 29, 0.18);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.shots-dots button:hover { background: rgba(16, 21, 29, 0.35); }
.shots-dots button.active {
  background: var(--accent);
  transform: scale(1.25);
}

/* ---------- Web products ---------- */

.webapps { max-width: 1200px; margin: 0 auto; padding: 24px 48px 24px; }

.webapps .section-head { margin-bottom: 36px; }

.webapps__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.webapp-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  color: var(--ink);
}
.webapp-card:hover { border-color: var(--blue); color: var(--ink); }

.webapp-card__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.webapp-card__title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.webapp-card__desc {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
}
.webapp-card__more { font-size: 13px; font-weight: 600; color: var(--blue); }

/* ---------- Reviews ---------- */

.reviews {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 48px 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review {
  margin: 0;
  padding: 28px;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.review__stars { color: #C2531B; font-size: 15px; letter-spacing: 2px; }

.review blockquote {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 19px;
  line-height: 1.45;
}

.review figcaption { font-size: 13px; color: var(--muted); font-weight: 600; }

/* ---------- Services ---------- */

.services { background: var(--ink); color: var(--bg); }

.services__inner { max-width: 1200px; margin: 0 auto; padding: 88px 48px; }

.services .kicker { color: var(--blue-soft); }

.services h2 {
  margin: 0;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 18ch;
  text-wrap: balance;
}
.services h2 .serif { color: var(--blue-soft); }

.services__lede {
  margin: 24px 0 0;
  font-size: 17px;
  line-height: 1.6;
  color: rgba(246, 244, 239, 0.65);
  max-width: 56ch;
  text-wrap: pretty;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(246, 244, 239, 0.14);
  border: 1px solid rgba(246, 244, 239, 0.14);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 56px;
}

.service {
  background: var(--ink);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service__num { font-size: 13px; font-weight: 700; color: var(--blue-soft); }
.service h3 { margin: 0; font-size: 20px; font-weight: 700; }
.service p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(246, 244, 239, 0.6);
}

.services__cta {
  display: inline-block;
  margin-top: 40px;
  padding: 15px 28px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  font-weight: 700;
  font-size: 15px;
}
.services__cta:hover { background: var(--blue-soft); color: var(--ink); }

/* ---------- About ---------- */

.about { max-width: 1200px; margin: 0 auto; padding: 88px 48px; }

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about h2 {
  margin: 0;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.about__copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--muted);
}
.about__copy p { margin: 0; text-wrap: pretty; }

/* ---------- Journal ---------- */

.journal { max-width: 1200px; margin: 0 auto; padding: 0 48px 88px; }

.journal .section-head { margin-bottom: 36px; }

.journal__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.journal-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  color: var(--ink);
}
.journal-card:hover { border-color: var(--blue); color: var(--ink); }

.journal-card__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.journal-card__title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.journal-card__more { font-size: 13px; color: var(--muted); }

/* ---------- Contact ---------- */

.contact { max-width: 1200px; margin: 0 auto; padding: 0 48px 88px; }

.contact__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}

.contact__main {
  background: var(--paper);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__main h2 {
  margin: 0;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.contact__main > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  text-wrap: pretty;
}

.contact__email { align-self: flex-start; }

.contact__store-links { display: flex; gap: 20px; font-size: 14px; font-weight: 600; }
.contact__store-links a { color: var(--blue); }

.newsletter {
  background: var(--bg);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
}

.newsletter h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.newsletter > p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--muted); }

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

.newsletter__form input {
  flex: 1;
  min-width: 0;
  padding: 13px 16px;
  border-radius: 10px;
  border: 1.5px solid rgba(16, 21, 29, 0.2);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 14px;
  outline-color: var(--blue);
}

.newsletter__form button {
  padding: 13px 20px;
  border-radius: 10px;
  border: none;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  font-family: var(--font-sans);
  cursor: pointer;
}

/* ---------- Legal pages ---------- */

.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 88px;
}

.legal h1 {
  margin: 0 0 10px;
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.legal__updated {
  margin: 0 0 44px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.legal h2 {
  margin: 36px 0 12px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.legal p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  text-wrap: pretty;
}

.legal ul {
  margin: 0 0 14px;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal li {
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
}

.legal strong { color: var(--ink); font-weight: 700; }

.legal a { color: var(--blue); font-weight: 600; }

/* ---------- Journal articles ---------- */

.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 88px;
}

.article__back {
  display: inline-block;
  margin-bottom: 32px;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
}

.article h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 5vw, 50px);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.article__meta {
  margin: 0 0 40px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.article h2 {
  margin: 36px 0 12px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.article p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
  text-wrap: pretty;
}

.article ul {
  margin: 0 0 16px;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.article li { font-size: 17px; line-height: 1.7; color: var(--muted); }
.article strong { color: var(--ink); font-weight: 700; }
.article p a { color: var(--blue); font-weight: 600; }

.article blockquote {
  margin: 32px 0;
  padding-left: 24px;
  border-left: 3px solid var(--blue);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 23px;
  line-height: 1.45;
  color: var(--ink);
}

.article__figure {
  margin: 36px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.article__figure img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line-soft);
}
.article__figure figcaption {
  grid-column: 1 / -1;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.article__icons {
  margin: 36px 0;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.article__icons img { width: 64px; height: 64px; border-radius: 16px; }

.article__cta {
  margin-top: 44px;
  padding: 28px 32px;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.article__cta p { margin: 0; font-size: 15px; }
.article__cta strong { display: block; font-size: 17px; margin-bottom: 2px; }

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

/* ---------- Footer ---------- */

.footer { border-top: 1px solid var(--line); }

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
}
.footer__brand .logo-mark { width: 24px; height: 24px; }

.footer__links { display: flex; gap: 24px; font-weight: 600; }
.footer__links a { color: var(--muted); }
.footer__links a:hover { color: var(--blue); }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .stack { gap: 20px; }
  .app,
  .app--flip {
    position: static;
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 32px 24px;
  }
  .app--flip .app__body { order: 1; }
  .app--flip .app__phone { order: 2; }
  .app__num { font-size: 56px; top: 18px; right: 20px; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr; }
  .webapps__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .journal__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav { padding: 14px 24px; }
  .nav__links a:not(.nav__cta) { display: none; }

  .hero,
  .section,
  .about,
  .journal,
  .contact,
  .reviews,
  .webapps,
  .services__inner { padding-left: 24px; padding-right: 24px; }

  .hero { padding-top: 64px; padding-bottom: 48px; }
  .services__grid { grid-template-columns: 1fr; }
  .contact__main, .newsletter { padding: 32px 24px; }
  .section-head h2, .about h2 { font-size: 32px; }
  .stats { grid-template-columns: 1fr 1fr; }
}