/* -------------------------------------------------
   Palette + dark-mode (Modernized - Button & Logo Update)
------------------------------------------------- */
/* ---------- Palette: Deep Navy + Vibrant Accent ---------- */
:root {
  --bg: #121826;
  --fg: #d4dde4;

  /* Vibrant cyan accent */
  --accent-grad: linear-gradient(135deg, #00bcd4 0%, #00acc1 100%);
  --accent-solid: #00bcd4;
  --btn-fg: #121826; /* Dark text on button */
  --btn-bg: #00bcd4; /* Vibrant cyan button background */
  --btn-shadow: rgba(0, 188, 212, 0.3); /* Cyan shadow for button */
  --shadow-color: rgba(0, 0, 0, 0.1);
}

/* -------------------------------------------------
   Hand-held optimisation  ≤ 600 px
------------------------------------------------- */
@media (max-width: 600px) {
  .hero__logo {
    max-width: 180px; /* Larger logo on mobile */
    width: 60vw;
  }

  .hero {
    padding: 20vh 1rem 12vh;
    gap: 1.75rem;
  }

  .hero__headline {
    font-size: clamp(2rem, 10vw, 2.6rem);
    line-height: 1.3;
  }

  .hero__tagline {
    font-size: 1.05rem;
    opacity: 0.8;
  }

  .btn-primary {
    width: 100%;
    padding: 1.2rem 0; /* Slightly more vertical padding */
    font-size: 1.1rem;
  }

  main {
    padding: 2.5rem 1.5rem;
  }

  .blurb h2 {
    font-size: 1.4rem;
    margin-bottom: 1.1rem;
  }
}

/* -------------------------------------------------
   Reset inherited margin
------------------------------------------------- */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  margin: 0 auto;
  padding: 3rem 1.5rem;
  max-width: 900px;
}

/* -------------------------------------------------
   HERO (Updated Logo)
------------------------------------------------- */
.hero {
  text-align: center;
  padding: 14vh 1.5rem 16vh; /* Adjust padding for larger logo */
  background: var(--accent-grad);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem; /* Increased gap for larger logo */
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.hero__logo {
  max-width: 200px; /* Significantly larger logo */
  height: auto;
  opacity: 1; /* Ensure full opacity for prominence */
}

.hero__headline {
  font-size: clamp(2.2rem, 6vw, 3.2rem); /* Slightly larger headline to match */
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.01em;
}

.accent {
  color: #fff;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.hero__tagline {
  font-size: clamp(1.15rem, 2.8vw, 1.3rem);
  margin: 0 0.5rem 1.75rem; /* Adjust margin for spacing */
  opacity: 0.85;
}

/* -------------------------------------------------
   CTA button (New Vibrant Style)
------------------------------------------------- */
.btn-primary {
  display: inline-block;
  padding: 1.1rem 2.5rem; /* Slightly more padding */
  background: var(--btn-bg); /* Vibrant cyan background */
  color: var(--btn-fg); /* Dark text */
  border: none;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  box-shadow: 0 4px 8px var(--btn-shadow); /* More prominent button shadow */
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 188, 212, 0.35); /* More pronounced hover shadow */
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px var(--btn-shadow);
}

/* -------------------------------------------------
   Body blurb
------------------------------------------------- */
.blurb {
  text-align: center;
  margin-top: 4rem;
}

.blurb h2 {
  margin-bottom: 1.25rem;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--fg);
}

.blurb p {
  line-height: 1.7;
  opacity: 0.9;
}

/* -------------------------------------------------
   Footer
------------------------------------------------- */
.site-footer {
  background: var(--bg);
  opacity: 0.9;
  padding: 2rem 1.5rem;
  text-align: center;
}

.site-footer p {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.7;
}

.site-footer a {
  color: var(--accent-solid);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease-in-out;
}

.site-footer a:hover {
  text-decoration: underline;
  color: #26c6da; /* Lighter shade on hover */
}