* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    sans-serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: url("./photo-1501555088652-021faa106b9b.avif") center/cover
    no-repeat fixed;
  min-height: 100vh;
  position: relative;
}

/* soft white overlay */
body::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(2px);
  z-index: 1;
  pointer-events: none;
}

.wrapper {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* sky-blue to white translucent gradient — used on header, footer, cards */
.glass-header {
  background: linear-gradient(
    145deg,
    rgba(135, 206, 235, 0.85) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.glass-footer {
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.75) 0%,
    rgba(173, 216, 230, 0.7) 100%
  );
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, 0.6);
}

.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(4px);
  border-radius: 32px;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0, 30, 50, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

/* layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.8rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(130deg, #0077be, #40a0ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 10px rgba(255, 255, 255, 0.5);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  font-weight: 500;
  color: #0a3450;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: 0.2s;
  font-size: 1.1rem;
}

.nav-links a:hover {
  border-bottom-color: #0077be;
  color: #000;
}

/* sections */
section {
  margin: 5rem 0;
}

#banner {
  min-height: 70vh;
  display: flex;
  align-items: center;
  text-align: center;
}

.banner-content {
  max-width: 800px;
  margin: 0 auto;
}

.banner-content h1 {
  font-size: clamp(2.8rem, 10vw, 5.2rem);
  font-weight: 800;
  background: linear-gradient(145deg, #0b4b6b, #2a7f9c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.banner-content .tagline {
  font-size: 1.8rem;
  font-weight: 300;
  margin: 1rem 0 1.5rem;
  color: #1b4e6e;
}

.banner-content p {
  font-size: 1.2rem;
  color: #1f3b4a;
  max-width: 600px;
  margin: 0 auto;
}

/* split layouts */
.split {
  display: flex;
  align-items: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.split > * {
  flex: 1 1 300px;
}

.text-content h2 {
  font-size: 2.4rem;
  font-weight: 700;
  color: #0c4a6e;
  margin-bottom: 1.5rem;
}

.text-content p {
  font-size: 1.2rem;
  line-height: 1.6;
  color: #1e3a5f;
  margin-bottom: 1.2rem;
}

/* mockup screenshot style */
.screenshot-mock {
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(2px);
  border-radius: 40px;
  padding: 1rem;
  box-shadow: 0 30px 40px -15px rgba(0, 80, 120, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.8);
  max-width: 320px;
  margin: 0 auto;
}

.mock-display {
  background: #d1e9ff;
  border-radius: 32px;
  aspect-ratio: 9 / 16;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #145c8f;
  font-weight: 500;
  background-image:
    radial-gradient(
      circle at 20% 30%,
      rgba(255, 255, 255, 0.7) 10%,
      transparent 30%
    ),
    linear-gradient(145deg, #b3daf5, #e2f0ff);
  border: 1px solid white;
}

.mock-display span {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.feature-item {
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(2px);
  border-radius: 28px;
  padding: 1.8rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.9);
  transition: 0.15s;
}

.feature-item h3 {
  font-size: 1.7rem;
  font-weight: 600;
  color: #0b5885;
  margin-bottom: 0.8rem;
}

.feature-item p {
  color: #19445e;
  font-size: 1rem;
  line-height: 1.5;
}

/* screenshot grid */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.screen-card {
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
  border-radius: 36px;
  padding: 1.2rem;
  border: 1px solid white;
  transition: 0.2s;
}

.screen-card .mock-display {
  border-radius: 24px;
  min-height: 300px;
}

/* footer */
footer {
  margin-top: auto;
  padding: 2rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
}

.footer-nav a {
  color: #123b56;
  text-decoration: none;
  font-weight: 500;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.contact {
  font-size: 1.2rem;
  color: #10364b;
}

.contact a {
  color: #0f5b8c;
  text-decoration: none;
  font-weight: 500;
}

.copyright {
  color: #2a4b65;
  font-size: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  padding-top: 1.5rem;
  width: 100%;
  text-align: center;
}

/* mobile fine-tune */
@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    text-align: center;
  }
  .nav-links {
    justify-content: center;
    gap: 1.2rem;
  }
  .split {
    flex-direction: column;
    gap: 2rem;
  }
  .screenshot-grid {
    grid-template-columns: 1fr;
  }
  .glass-card {
    padding: 1.5rem;
  }
}

/* hide any download mentions */
.no-download {
  display: none;
}