* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #0f1117;
  color: #e8e8e8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: #16181f;
  border-bottom: 2px solid #2a6dd9;
}

.nav-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: #4a90e2;
  letter-spacing: 0.5px;
}

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

.nav-links a {
  text-decoration: none;
  color: #b0b8c8;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #4a90e2;
}

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

.hero-content {
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.8rem;
}

/* Circular profile picture */
.profile-pic {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  border: 4px solid #2a6dd9;
  box-shadow: 0 0 24px rgba(42, 109, 217, 0.45);
}

/* Bio box */
.bio-box {
  background: #16181f;
  border: 1px solid #2a3550;
  border-radius: 16px;
  padding: 2rem 2.4rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.bio-box h1 {
  font-size: 1.9rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.bio-box p {
  font-size: 1.05rem;
  color: #8a96aa;
  line-height: 1.6;
}

/* App grid */
.app-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.app-card {
  text-decoration: none;
  background: #16181f;
  border: 1px solid #2a3550;
  border-radius: 16px;
  padding: 1.6rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  width: 340px;
  transition: border-color .2s, transform .15s;
}
.app-card:hover { border-color: #4a90e2; transform: translateY(-3px); }

.app-icon { font-size: 2.8rem; }

.app-info h2 { color: #fff; font-size: 1.1rem; margin-bottom: .3rem; }
.app-info p  { color: #8a96aa; font-size: .85rem; line-height: 1.5; margin-bottom: .6rem; }

.app-badge {
  display: inline-block;
  background: #2a6dd9;
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  padding: .25rem .7rem;
  border-radius: 20px;
}

/* Placeholder pages */
.page-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  padding: 4rem 2rem;
  text-align: center;
}

.page-content h1 {
  font-size: 2rem;
  color: #4a90e2;
}

.page-content p {
  color: #8a96aa;
  font-size: 1rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: #4a5060;
  border-top: 1px solid #1e2130;
}