:root {
  --header-height: 72px;
  --bg1: #0b0c14;
  --bg2: #1a1c2e;
  --accent: #9ddcff;
  --muted: #aacfff;
  --max-width: 1100px;
  --hero-img-size: 240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-top: var(--header-height);
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(160deg, var(--bg1) 0%, var(--bg2) 100%);
  color: #e6f3ff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  background: rgba(0,10,30,0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.brand h1 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--accent);
}

.brand small {
  color: var(--muted);
  font-size: .78rem;
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

nav a {
  color: var(--accent);
  text-decoration: none;
  padding: .45rem .7rem;
  border-radius: 6px;
  transition: background .18s, color .18s;
  font-size: .95rem;
}

nav a:hover {
  text-decoration: underline;
  background: rgba(255,255,255,0.03);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.3rem;
  padding: .5rem;
  border-radius: 6px;
  cursor: pointer;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1rem 4rem;
}

.hero img {
  width: var(--hero-img-size);
  height: var(--hero-img-size);
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1.5rem;
  border: 4px solid var(--accent);
  box-shadow: 0 0 25px var(--accent);
}

.hero .inner {
  max-width: var(--max-width);
  width: 100%;
  padding: 2.5rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(10,20,40,0.6);
}

.hero h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero p {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: #d4e8f7;
  margin: 0;
}

.section {
  padding: 4rem 1rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section h3 {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: .5rem;
}

.section p,
.section ul {
  color: #d4e8f7;
  font-size: 1rem;
  line-height: 1.6;
}

.section ul {
  padding-left: 1.2rem;
}

footer {
  background: rgba(0,10,30,0.9);
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
}

/* Global link color across page to match headers */
a {
  color: var(--accent);
}

a:hover {
  text-decoration: underline;
}

@media (max-width:768px){
  .menu-btn {
    display: block;
  }

  nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(0,10,30,0.95);
    flex-direction: column;
    gap: 0;
    padding: .75rem;
    display: none;
  }

  nav.open {
    display: flex;
  }

  nav a {
    padding: .75rem 1rem;
    width: 100%;
    border-radius: 6px;
  }

  .hero .inner {
    padding: 2rem;
  }
}