@font-face {
  font-family: "Montserrat";
  src: url("assets/fonts/Montserrat-Regular.otf") format("opentype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Montserrat";
  src: url("assets/fonts/Montserrat-Medium.otf") format("opentype");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #02030a;
  --text: #f7f7fb;
  --muted: #b9bbca;
  --pink: #ff16b7;
  --violet: #7958ff;
  --blue: #00a9ff;
  --gold: #f5b800;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  min-height: 100svh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 20%, rgba(41, 21, 92, 0.22), transparent 32rem),
    radial-gradient(circle at 50% 75%, rgba(0, 91, 176, 0.09), transparent 35rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

.stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("assets/stars.svg");
}

.stars--far {
  opacity: 0.62;
  background-size: 720px 720px;
}

.stars--near {
  opacity: 0.65;
  background-position: 240px 110px;
  background-size: 1080px 1080px;
  transform: rotate(180deg) scale(1.03);
  animation: twinkle 7s ease-in-out infinite alternate;
}

.top-actions {
  position: fixed;
  top: max(18px, env(safe-area-inset-top));
  right: max(18px, env(safe-area-inset-right));
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
}

.menu-shell {
  position: relative;
}

.top-action {
  min-height: 42px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 13px;
  color: var(--text);
  background: rgba(9, 11, 23, 0.72);
  box-shadow: 0 9px 28px rgba(0, 0, 0, 0.2), inset 0 1px rgba(255, 255, 255, 0.05);
  font: 500 0.76rem/1 "Montserrat", sans-serif;
  cursor: pointer;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 180ms ease, background 180ms ease;
}

.top-action:hover,
.top-action:focus-visible,
.top-action[aria-expanded="true"] {
  border-color: rgba(108, 188, 255, 0.52);
  background: rgba(22, 26, 47, 0.88);
}

.top-action:focus-visible,
.language-option:focus-visible {
  outline: 2px solid #45bdff;
  outline-offset: 3px;
}

.info-symbol {
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  border: 1px solid #82d0ff;
  border-radius: 50%;
  color: #82d0ff;
  font: 600 0.72rem/1 "Montserrat", sans-serif;
}

.language-button {
  min-width: 74px;
}

.flag {
  font-size: 1.14rem;
  line-height: 1;
}

.chevron {
  margin-top: -3px;
  color: var(--muted);
  font-size: 0.9rem;
}

.floating-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 17px;
  background: rgba(8, 10, 21, 0.94);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.48), inset 0 1px rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.info-menu {
  width: min(390px, calc(100vw - 36px));
  max-height: calc(100svh - 86px);
  padding: 18px;
  overflow-y: auto;
}

.info-menu .resources__heading {
  margin: 0 0 15px;
  text-align: left;
}

.info-menu .resource-grid {
  grid-template-columns: 1fr;
}

.language-menu {
  width: 168px;
  padding: 7px;
}

.language-option {
  width: 100%;
  min-height: 42px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 0;
  border-radius: 10px;
  color: var(--text);
  background: transparent;
  font: 500 0.78rem/1 "Montserrat", sans-serif;
  text-align: left;
  cursor: pointer;
}

.language-option:hover,
.language-option.is-selected {
  background: rgba(112, 104, 255, 0.16);
}

.landing {
  position: relative;
  z-index: 1;
  width: min(100%, 980px);
  min-height: 100svh;
  margin: 0 auto;
  padding: max(56px, env(safe-area-inset-top)) clamp(20px, 5vw, 56px) max(28px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand {
  text-align: center;
}

.brand__mark {
  width: clamp(88px, 9vw, 112px);
  height: auto;
  filter: drop-shadow(0 0 15px rgba(0, 169, 255, 0.38)) drop-shadow(0 0 20px rgba(255, 22, 183, 0.25));
}

.brand__name {
  margin: 22px 0 8px;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 500;
  letter-spacing: clamp(0.16em, 1vw, 0.28em);
  line-height: 1;
}

.brand__name span:first-child {
  color: transparent;
  background: linear-gradient(90deg, var(--pink), #d11ce6 82%);
  background-clip: text;
  -webkit-background-clip: text;
}

.brand__name span:last-child {
  color: transparent;
  background: linear-gradient(90deg, var(--violet), var(--blue));
  background-clip: text;
  -webkit-background-clip: text;
}

.brand__tagline,
.brand__status,
.eyebrow {
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.brand__tagline {
  margin: 0;
  color: #e2e2ea;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(0.68rem, 1.6vw, 0.92rem);
  font-weight: 400;
}

.brand__status {
  margin: 12px 0 0;
  color: var(--gold);
  font-size: clamp(0.62rem, 1.4vw, 0.78rem);
}

.resources {
  width: 100%;
  margin-top: clamp(48px, 8vh, 76px);
}

.tutorial-cta {
  width: min(100%, 620px);
  min-height: 78px;
  margin: 0 auto 16px;
  padding: 16px 20px 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(155, 90, 255, 0.38);
  border-radius: 16px;
  color: var(--text);
  background: linear-gradient(105deg, rgba(255, 22, 183, 0.11), rgba(0, 169, 255, 0.1));
  box-shadow: 0 0 34px rgba(80, 47, 201, 0.1), inset 0 1px rgba(255, 255, 255, 0.06);
  text-decoration: none;
  font: inherit;
  text-align: left;
  cursor: default;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 180ms ease, background 180ms ease;
}

.tutorial-cta strong,
.tutorial-cta small {
  display: block;
}

.tutorial-cta strong {
  font-size: 0.98rem;
  font-weight: 580;
}

.tutorial-cta small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.75rem;
}

.teaser-play {
  position: relative;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 1px solid rgba(102, 198, 255, 0.62);
  border-radius: 50%;
  background: rgba(0, 169, 255, 0.08);
  box-shadow: 0 0 18px rgba(0, 169, 255, 0.13);
}

.teaser-play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 53%;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 9px solid #85d5ff;
  transform: translate(-40%, -50%);
}

.tutorial-cta:hover,
.tutorial-cta:focus-visible {
  border-color: rgba(105, 187, 255, 0.65);
  background: linear-gradient(105deg, rgba(255, 22, 183, 0.16), rgba(0, 169, 255, 0.15));
}

.store-links {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.download-callout {
  margin: clamp(48px, 8vh, 72px) auto 22px;
  color: #a7a9b7;
  font-size: clamp(0.72rem, 1.2vw, 0.84rem);
  line-height: 1.5;
  text-align: center;
}

.store-badge-link {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  text-decoration: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.store-badge-link:hover,
.store-badge-link:focus-visible {
  opacity: 0.88;
  transform: translateY(-1px);
}

.store-badge-link:focus-visible {
  outline: 2px solid #45bdff;
  outline-offset: 3px;
}

.store-badge {
  display: block;
  height: auto;
}

.store-badge--google {
  width: 153px;
}

.store-badge--apple {
  width: 135px;
}

.tutorial-cta:focus-visible {
  outline: 2px solid #45bdff;
  outline-offset: 3px;
}

.resources__heading {
  margin-bottom: 18px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: #9195aa;
  font-size: 0.64rem;
}

.resources h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.3vw, 1.7rem);
  font-weight: 520;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.resource-link {
  position: relative;
  min-height: 58px;
  padding: 13px 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 13px;
  color: var(--text);
  background: rgba(12, 14, 27, 0.62);
  text-decoration: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 180ms ease, background 180ms ease;
}

.resource-link:hover,
.resource-link:focus-visible {
  border-color: rgba(91, 169, 255, 0.42);
  background: rgba(25, 29, 50, 0.78);
}

.resource-link:focus-visible {
  outline: 2px solid #45bdff;
  outline-offset: 3px;
}

.resource-link__text {
  font-size: clamp(0.82rem, 1.4vw, 0.94rem);
  font-weight: 480;
  line-height: 1.3;
}

.resource-link__arrow {
  color: #7dcaff;
  font-size: 1.1rem;
}

footer {
  margin-top: 34px;
  color: #666a7e;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
}

.tutorial-back {
  width: min(100%, 520px);
  margin: 48px auto 0;
}

@keyframes twinkle {
  from { opacity: 0.38; }
  to { opacity: 0.72; }
}

@media (max-width: 640px) {
  .top-actions {
    top: max(14px, env(safe-area-inset-top));
    right: max(14px, env(safe-area-inset-right));
  }

  .top-action__label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .top-action {
    min-width: 42px;
    padding: 0 10px;
  }

  .language-button {
    min-width: 72px;
  }

  .landing {
    width: min(100%, 440px);
    justify-content: flex-start;
    padding-top: max(92px, 11vh, env(safe-area-inset-top));
  }

  .brand__name {
    margin-top: 18px;
  }

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

  .resources {
    margin-top: clamp(38px, 6vh, 58px);
  }

  .download-callout {
    margin-top: clamp(42px, 7vh, 60px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .stars--near {
    animation: none;
  }

  .resource-link {
    transition: none;
  }

  .top-action,
  .store-badge-link {
    transition: none;
  }
}