:root {
  --bg-deep: #100f35;
  --bg-mid: #1c1d57;
  --bg-soft: #f5f7ff;
  --surface: rgba(255, 255, 255, 0.12);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --surface-border: rgba(255, 255, 255, 0.18);
  --text-dark: #18203f;
  --text-light: #f7f8ff;
  --text-muted: #c9ceff;
  --accent-gold: #ffbf47;
  --accent-coral: #ff7b63;
  --accent-aqua: #69e0d0;
  --accent-blue: #6fa8ff;
  --shadow-lg: 0 24px 80px rgba(7, 10, 44, 0.28);
  --shadow-md: 0 16px 40px rgba(19, 23, 71, 0.16);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --nav-height: 88px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Nunito", sans-serif;
  color: var(--text-dark);
  background:
    radial-gradient(
      circle at top left,
      rgba(105, 224, 208, 0.16),
      transparent 28%
    ),
    radial-gradient(
      circle at top right,
      rgba(255, 191, 71, 0.15),
      transparent 24%
    ),
    linear-gradient(180deg, #14124a 0%, #1f1f64 24%, #faf8ff 24%, #f7fbff 100%);
}

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

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  background: #fff;
  color: var(--text-dark);
  padding: 12px 16px;
  border-radius: 12px;
  z-index: 2000;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(18px);
  background: rgba(13, 15, 50, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text-light);
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-family: "Baloo 2", cursive;
  font-size: 1.1rem;
  color: #1c1d57;
  background: linear-gradient(135deg, var(--accent-gold), #ffd989);
  box-shadow: 0 12px 20px rgba(255, 191, 71, 0.25);
}

.brand-text,
h1,
h2,
h3 {
  font-family: "Baloo 2", cursive;
  line-height: 1;
}

.brand-text {
  font-size: 1.45rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.9);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    background-color 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  padding: 0;
  background: transparent;
  border: 0;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
}

.hero,
.section {
  scroll-margin-top: calc(var(--nav-height) + 16px);
}

.hero {
  position: relative;
  overflow: clip;
  padding: 64px 0 92px;
  color: var(--text-light);
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(15, 13, 53, 0.94) 0%,
      rgba(15, 13, 53, 0.65) 45%,
      rgba(15, 13, 53, 0.28) 100%
    ),
    url("header-image.png") center top / cover no-repeat;
  opacity: 0.95;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, #faf8ff);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - var(--nav-height) - 64px);
}

.eyebrow,
.section-label,
.app-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.eyebrow::before,
.section-label::before,
.app-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.eyebrow {
  color: #ffe08e;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 5vw, 5.6rem);
  line-height: 0.95;
  max-width: 11ch;
}

.hero-text {
  margin: 24px 0 0;
  max-width: 60ch;
  font-size: 1.14rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #1b1e4f;
  background: linear-gradient(135deg, var(--accent-gold), #ffd982);
  box-shadow: 0 18px 30px rgba(255, 191, 71, 0.24);
}

.button-secondary {
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.06);
}

.app-links .button-secondary {
  color: #24305e;
  border-color: rgba(57, 84, 165, 0.14);
  background: #eef3ff;
}

.button-disabled {
  pointer-events: none;
  opacity: 0.75;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero-badge {
  min-width: 124px;
  padding: 14px 18px;
  border: 1px solid var(--surface-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow-md);
}

.hero-badge strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
  color: #fff;
}

.hero-badge span {
  display: block;
  margin-top: 6px;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  padding: clamp(16px, 2vw, 24px);
  border-radius: var(--radius-xl);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.28),
    rgba(255, 255, 255, 0.1)
  );
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-lg);
}

.hero-card::before,
.hero-card::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(18px);
  z-index: -1;
}

.hero-card::before {
  width: 180px;
  height: 180px;
  background: rgba(111, 168, 255, 0.32);
  top: -30px;
  left: -20px;
}

.hero-card::after {
  width: 160px;
  height: 160px;
  background: rgba(255, 123, 99, 0.28);
  right: -20px;
  bottom: -20px;
}

.hero-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 24px;
}

.section {
  position: relative;
  padding: 96px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: start;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2.4rem, 3.5vw, 4rem);
  line-height: 0.98;
  color: var(--text-dark);
}

.section-heading-center {
  max-width: 760px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading-center .section-label::before {
  display: none;
}

.section-intro {
  margin: 18px 0 0;
  font-size: 1.05rem;
  line-height: 1.75;
  color: #55607f;
}

.section-about {
  background:
    radial-gradient(
      circle at 10% 10%,
      rgba(111, 168, 255, 0.12),
      transparent 20%
    ),
    linear-gradient(180deg, #faf8ff 0%, #f5fbff 100%);
}

.section-label {
  color: #3954a5;
}

.about-panel {
  padding: 32px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(80, 103, 173, 0.12);
  box-shadow: var(--shadow-md);
}

.about-panel p {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.9;
  color: #34405f;
}

.about-panel p + p {
  margin-top: 18px;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.highlight-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #ffffff, #f7f8ff);
  border: 1px solid rgba(69, 90, 157, 0.12);
}

.highlight-card h3,
.app-tile h3,
.contact-card h2 {
  margin: 0;
  font-size: 1.65rem;
  color: #19234a;
}

.highlight-card p,
.app-description,
.contact-card p {
  margin: 10px 0 0;
  line-height: 1.75;
  color: #4e5976;
}

.section-apps {
  background:
    radial-gradient(
      circle at top center,
      rgba(105, 224, 208, 0.14),
      transparent 26%
    ),
    linear-gradient(180deg, #eff8ff 0%, #fffaf6 100%);
}

.apps-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
}

.app-tile {
  display: flex;
  flex-direction: column;
  flex: 0 1 calc((100% - 44px) / 3);
  max-width: calc((100% - 44px) / 3);
  min-height: 100%;
  padding: 26px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(52, 66, 125, 0.12);
  box-shadow: var(--shadow-md);
}

.featured-app {
  background:
    radial-gradient(
      circle at top right,
      rgba(255, 191, 71, 0.18),
      transparent 24%
    ),
    linear-gradient(180deg, #ffffff 0%, #fffaf5 100%);
}

.app-tile-top {
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-icon {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(34, 47, 96, 0.16);
}

.app-kicker {
  margin-bottom: 8px;
  color: #f07c3f;
}

.app-kicker::before {
  width: 18px;
}

.app-meta {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 10px;
}

.app-meta li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #34405f;
  font-weight: 700;
}

.app-meta li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-aqua), var(--accent-blue));
  flex: 0 0 auto;
}

.app-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 24px;
}

.app-tile-placeholder {
  justify-content: center;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.85),
    rgba(246, 248, 255, 0.95)
  );
  border-style: dashed;
}

.section-contact {
  padding-top: 72px;
  padding-bottom: 112px;
}

.contact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px;
  border-radius: var(--radius-xl);
  color: var(--text-light);
  background:
    linear-gradient(135deg, rgba(18, 19, 68, 0.95), rgba(40, 34, 106, 0.95)),
    url("header-image.png") center center / cover no-repeat;
  box-shadow: var(--shadow-lg);
}

.contact-card .section-label {
  color: #ffd982;
}

.contact-card h2 {
  color: #fff;
  font-size: clamp(2rem, 3vw, 3rem);
}

.contact-card p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 54ch;
}

.contact-button {
  flex-shrink: 0;
  min-width: 350px;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1001;
  min-width: 58px;
  min-height: 58px;
  padding: 12px 16px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  color: #1b1e4f;
  background: linear-gradient(135deg, var(--accent-gold), #ffd982);
  box-shadow: 0 18px 30px rgba(19, 23, 71, 0.22);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0.25s ease;
}

.back-to-top-icon {
  display: block;
  width: 24px;
  height: 24px;
  fill: currentColor;
  margin: 0 auto;
  transform: translateY(1px);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  transform: translateY(-2px);
}

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .about-highlights,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 40px;
  }

  .hero-grid {
    min-height: auto;
  }

  .hero-copy {
    order: 2;
  }

  .hero-visual {
    order: 1;
    max-width: 560px;
    margin: 0 auto;
  }

  .contact-card {
    display: grid;
  }

  .app-tile {
    flex-basis: min(100%, 560px);
    max-width: min(100%, 560px);
  }

  .contact-button {
    min-width: 100%;
  }
}

@media (max-width: 760px) {
  :root {
    --nav-height: 80px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border-radius: 20px;
    background: rgba(17, 19, 61, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero h1 {
    max-width: 100%;
  }

  .about-panel,
  .app-tile,
  .contact-card {
    padding: 24px;
  }
  .contact-button {
    min-width: 100%;
  }
}

@media (max-width: 560px) {
  .hero {
    padding-bottom: 72px;
  }

  .section {
    padding: 76px 0;
  }

  .hero-text,
  .about-panel p,
  .section-intro,
  .app-description,
  .contact-card p {
    font-size: 1rem;
  }

  .hero-badge {
    min-width: calc(50% - 7px);
  }

  .brand-text {
    font-size: 1.2rem;
  }

  .button,
  .contact-button {
    width: 100%;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    min-width: 54px;
    min-height: 54px;
  }
  .contact-button {
    min-width: 100%;
  }
}