:root {
  --bg: #180d22;
  --bg-deep: #100816;
  --text: #faf8fb;
  --muted: #c0b9c5;
  --study: #410061;
  --do: #004d61;
  --line: rgba(255,255,255,.13);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg-deep);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --------------------------------------------------
   Background
-------------------------------------------------- */

body::before {
  content: "";
  position: fixed;
  z-index: 0;
  inset: -7%;
  background:
    linear-gradient(rgba(24,13,34,.78), rgba(24,13,34,.88)),
    url("../assets/images/background.avif")
    center / cover no-repeat;
  filter: saturate(.82) contrast(1.05);
  transform: scale(1.03);
}

body::after {
  content: "";
  position: fixed;
  z-index: 0;
  inset: 0;
  background:
    radial-gradient(
      circle at 18% 20%,
      rgba(118,45,145,.22),
      transparent 32%
    ),
    radial-gradient(
      circle at 84% 72%,
      rgba(65,0,97,.30),
      transparent 34%
    ),
    linear-gradient(
      180deg,
      rgba(24,13,34,.10),
      rgba(16,8,22,.40)
    );
  pointer-events: none;
}

/* --------------------------------------------------
   Page
-------------------------------------------------- */

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 102px clamp(22px,5vw,72px) 26px;
  display: flex;
  flex-direction: column;
}

main,
footer {
  width: 100%;
  max-width: 1320px;
  margin-inline: auto;
}

/* --------------------------------------------------
   Header
-------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;

  width: 100%;
  margin: 0;

  background: rgba(16,8,22,.15);
  border-bottom: 1px solid rgba(255,255,255,.12);

  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  width: 100%;
  max-width: 1320px;
  min-height: 72px;
  margin-inline: auto;
  padding: 0 clamp(22px,5vw,72px);

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px,3vw,42px);
}

.main-nav a {
  color: var(--text);
  text-decoration: none;
  transition: color .25s ease, opacity .25s ease;
}

.nav-brand {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -.045em;
}

.nav-link {
  color: var(--muted) !important;
  font-size: 18px;
  font-weight: 500;
}

.main-nav a:hover {
  color: #fff !important;
}

.header-status {
  flex-shrink: 0;

  padding: 8px 12px;

  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;

  background: rgba(255,255,255,.055);
  backdrop-filter: blur(14px);

  color: #d4cdd8;

  font-size: 10px;
  font-weight: 600;
  letter-spacing: .17em;
  text-transform: uppercase;
}

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

main {
  margin-block: auto;
  padding: 8vh 0 7vh;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px,6vw,100px);
  align-items: start;
  margin-bottom: clamp(44px,7vw,82px);
}

.intro {
  width: 100%;
  max-width: 760px;
  margin: 0;
  padding-top: 50px;
}

.homepage .intro {
  padding-bottom: 100px;
}

.intro-image {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-image img {
  display: block;
  width: 80%;
  max-width: 600px;
  height: auto;
  border-radius: 24px;
  object-fit: cover;
}

/* --------------------------------------------------
   Typography
-------------------------------------------------- */

.eyebrow {
  margin: 0 0 17px;

  color: #d2a7df;

  font-size: 10px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;

  font-size: clamp(45px,7.3vw,88px);
  line-height: .96;
  letter-spacing: -.075em;
  font-weight: 600;
  text-wrap: balance;
}

.intro p {
  margin: 0;
  max-width: 600px;

  color: var(--muted);

  font-size: clamp(16px,2vw,19px);
  line-height: 1.65;
}

/* --------------------------------------------------
   App Cards
-------------------------------------------------- */

.apps {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 20px;
}

.app {
  position: relative;

  min-height: 450px;
  padding: clamp(28px,4vw,50px);

  border: 1px solid var(--line);
  border-radius: 30px;

  overflow: hidden;
  isolation: isolate;

  display: flex;
  flex-direction: column;
  justify-content: space-between;

  background: rgba(22,13,27,.62);
  backdrop-filter: blur(20px) saturate(120%);

  box-shadow: 0 25px 70px rgba(0,0,0,.18);

  transition:
    transform .4s cubic-bezier(.2,.8,.2,1),
    border-color .4s ease,
    box-shadow .4s ease;
}

.app::before {
  content: "";
  position: absolute;
  z-index: -1;

  width: 360px;
  height: 360px;

  right: -160px;
  bottom: -180px;

  border-radius: 50%;

  filter: blur(65px);
  opacity: .25;

  transition:
    transform .55s ease,
    opacity .4s ease;
}

.app.do::before {
  background: var(--do);
}

.app.study::before {
  background: var(--study);
}

.app:hover {
  transform: translateY(-9px) scale(1.012);

  border-color: rgba(255,255,255,.25);

  box-shadow: 0 35px 90px rgba(0,0,0,.32);
}

.app:hover::before {
  transform: scale(1.5);
  opacity: .42;
}

.logo-wrap {
  position: relative;
  z-index: 1;

  width: min(100%,430px);
}

.logo-wrap img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
}

.details {
  position: relative;
  z-index: 1;
  padding-top: 45px;
}

.whitelink {
  color: #fff;
  text-decoration: none;
}

/* --------------------------------------------------
   App Card Typography
-------------------------------------------------- */

.tagline {
  margin: 0 0 24px;
  max-width: 440px;

  font-size: clamp(20px,3vw,30px);
  line-height: 1.16;
  letter-spacing: -.045em;
  font-weight: 500;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;

  color: #d1cbd4;

  font-size: 9px;
  font-weight: 600;
  letter-spacing: .19em;
  text-transform: uppercase;
}

.status::before {
  content: "";

  width: 6px;
  height: 6px;

  border-radius: 50%;

  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

/* --------------------------------------------------
   Features
-------------------------------------------------- */

.features {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 20px;
  width: 100%;
}

.feature {
  position: relative;

  min-height: 420px;

  border: 1px solid var(--line);
  border-radius: 30px;

  overflow: hidden;
  isolation: isolate;

  background: rgba(22,13,27,.62);
  backdrop-filter: blur(20px) saturate(120%);

  box-shadow: 0 25px 70px rgba(0,0,0,.18);

  transition:
    transform .4s cubic-bezier(.2,.8,.2,1),
    border-color .4s ease,
    box-shadow .4s ease;
}

.feature::before {
  content: "";
  position: absolute;
  z-index: -1;

  width: 300px;
  height: 300px;

  right: -140px;
  bottom: -150px;

  border-radius: 50%;

  background: var(--study);
  filter: blur(65px);
  opacity: .22;

  transition:
    transform .55s ease,
    opacity .4s ease;
}

.feature:hover {
  transform: translateY(-7px);

  border-color: rgba(255,255,255,.25);

  box-shadow: 0 35px 90px rgba(0,0,0,.30);
}

.feature:hover::before {
  transform: scale(1.4);
  opacity: .38;
}

.feature-image {
  width: 100%;
  height: 230px;

  overflow: hidden;

  background: rgba(0,0,0,.15);
}

.feature-image img {
  display: block;

  width: 100%;
  height: 100%;

  object-fit: cover;

  transition:
    transform .6s cubic-bezier(.2,.8,.2,1);
}

.feature:hover .feature-image img {
  transform: scale(1.04);
}

.feature-content {
  position: relative;
  z-index: 1;

  padding: 28px clamp(26px,3vw,40px) 32px;
}

.feature-content h2 {
  margin: 0 0 10px;

  font-size: clamp(22px,2.5vw,30px);
  line-height: 1.1;
  letter-spacing: -.05em;
  font-weight: 500;
}

.feature-content p {
  margin: 0;
  max-width: 500px;

  color: var(--muted);

  font-size: 15px;
  line-height: 1.6;
}

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

footer {
  display: flex;
  justify-content: space-between;

  color: #7e7582;

  font-size: 10px;
  letter-spacing: .03em;
}

footer a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------
   Mobile Menu
-------------------------------------------------- */

.menu-toggle,
.mobile-menu {
  display: none;
}

/* --------------------------------------------------
   Mobile
-------------------------------------------------- */

@media (max-width: 760px) {

  .page {
    padding-top: 102px;
  }

  main {
    padding-top: 11vh;
  }

  /* Keep SanctumAPPS visible in the header */
  .main-nav {
    display: flex;
  }

  .main-nav .nav-link {
    display: none;
  }

  .nav-brand {
    display: block;
    font-size: 22px;
  }

  .header-status {
    display: none;
  }

  .header-inner {
    min-height: 72px;
    padding: 0 22px;
  }

  /* Hamburger */

  .menu-toggle {
    display: flex;

    width: 48px;
    height: 48px;

    padding: 0;
    margin-left: auto;

    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;

    border: 1px solid rgba(255,255,255,.15);
    border-radius: 12px;

    background: rgba(255,255,255,.055);
    backdrop-filter: blur(14px);

    cursor: pointer;
  }

  .menu-toggle span {
    display: block;

    width: 20px;
    height: 2px;

    border-radius: 2px;

    background: var(--text);
  }

  /* Full-screen menu */

  .mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 2000;

    display: flex;

    flex-direction: column;
    justify-content: center;
    align-items: center;

    background: rgba(16,8,22,.94);

    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
      opacity .3s ease,
      visibility .3s ease;
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Close button */

  .mobile-menu-close {
    position: absolute;

    top: 18px;
    right: 22px;

    width: 48px;
    height: 48px;

    border: 1px solid rgba(255,255,255,.15);
    border-radius: 12px;

    background: rgba(255,255,255,.055);

    color: var(--text);

    font-family: inherit;
    font-size: 32px;
    font-weight: 300;
    line-height: 1;

    cursor: pointer;
  }

  /* Menu links */

  .mobile-menu nav {
    display: flex;

    flex-direction: column;
    align-items: center;

    gap: 26px;
  }

  .mobile-menu nav a {
    color: var(--text);
    text-decoration: none;

    font-size: clamp(28px,8vw,42px);
    font-weight: 500;
    letter-spacing: -.055em;

    transition: color .25s ease;
  }

  .mobile-menu nav a:hover {
    color: #d2a7df;
  }

  .mobile-menu nav a:first-child {
    font-weight: 600;
  }

  /* Mobile menu status */

  .mobile-menu-status {
    margin-top: 55px;

    padding: 8px 12px;

    border: 1px solid rgba(255,255,255,.15);
    border-radius: 999px;

    background: rgba(255,255,255,.055);

    color: #d4cdd8;

    font-size: 10px;
    font-weight: 600;
    letter-spacing: .17em;
    text-transform: uppercase;
  }

  body.menu-open {
    overflow: hidden;
  }

  /* Hero */

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .intro-image {
    order: 2;
  }

  /* Apps */

  .apps {
    grid-template-columns: 1fr;
  }

  .app {
    min-height: 390px;
  }

  /* Features */

  .features {
    grid-template-columns: 1fr;
  }

  /* Footer */

  footer {
    justify-content: center;
  }
}

/* --------------------------------------------------
   Reduced Motion
-------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {

  .app,
  .app::before,
  .feature,
  .feature::before,
  .feature-image img {
    transition: none;
  }

  .app:hover,
  .feature:hover {
    transform: none;
  }

  .feature:hover .feature-image img {
    transform: none;
  }
}