:root {
  --primary: #002147; --accent: #ff6f00; --muted: #6b7280;
  --light-bg: #f8fafc; --card-bg: #ffffff; --shadow: 0 6px 18px rgba(2,6,23,0.08);
}
*{box-sizing:border-box} html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;background:var(--light-bg);color:#0f172a;line-height:1.55;}
.container{width:92%;max-width:1200px;margin:0 auto;}
.site-header{background:var(--primary);color:#fff;padding:16px 0;position:sticky;top:0;z-index:50;box-shadow:0 2px 6px rgba(2,6,23,.18);}
.header-flex{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo img{height:52px;width:52px;}
.logo .brand{display:flex;flex-direction:column;line-height:1;}
.logo .brand strong{color:#fff;letter-spacing:.3px;}
.logo .brand small{color:#cbd5e1;}
.main-nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0;align-items:center;}
.main-nav a{color:#fff;text-decoration:none;font-weight:600;}
.main-nav a:hover{color:var(--accent);}
.nav-toggle{display:none;background:transparent;border:2px solid #fff;border-radius:8px;color:#fff;padding:6px 10px;font-weight:700;}
@media(max-width:760px){.main-nav ul{display:none;flex-direction:column;background:var(--primary);position:absolute;right:16px;top:64px;padding:12px;border-radius:10px;box-shadow:var(--shadow);}.main-nav ul.open{display:flex;}.nav-toggle{display:inline-block;}}
.hero-banner{background:linear-gradient(0deg,rgba(0,33,71,.65),rgba(0,33,71,.65)),url('assets/images/banner_hd.jpg') center/cover no-repeat;color:#fff;text-align:center;padding:96px 0 84px;}
.hero-content h1{font-family:Merriweather,serif;font-size:36px;margin:0 0 8px;}
.hero-content p{margin:0 0 18px;color:#e2e8f0;}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:700;}
.btn.secondary{background:transparent;border:2px solid var(--accent);color:var(--accent);}
.section{padding:56px 0;text-align:center;}
.section-title{font-size:28px;color:var(--primary);margin:0 0 10px;font-weight:800;font-family:Merriweather,serif;}
.section-subtitle{color:var(--muted);max-width:900px;margin:0 auto 22px;}
.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;}
.mission-image img{width:100%;border-radius:12px;box-shadow:var(--shadow);}
@media(max-width:920px){.mission-grid{grid-template-columns:1fr;}}
.cards-join{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:18px;}
.card{background:var(--card-bg);padding:20px;border-radius:12px;box-shadow:var(--shadow);}
.card h3{margin:0 0 8px;} .card p{margin:0 0 12px;color:var(--muted);}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid-4{grid-template-columns:1fr}}
.profile-card{position:relative;overflow:hidden;text-align:center;}
.member-avatar{position:relative;width:108px;height:108px;border-radius:999px;margin:0 auto 12px;overflow:hidden;background:linear-gradient(135deg,#fff3e6,#dfe8ff);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:34px;color:var(--primary);}
.member-avatar img{width:100%;height:100%;object-fit:cover;display:block;}
.linkedin-hover{position:absolute;top:12px;right:12px;opacity:0;transition:.2s;transform:translateY(-6px);}
.profile-card:hover .linkedin-hover{opacity:1;transform:none;}
.linkedin-hover a{display:inline-flex;align-items:center;justify-content:center;background:#0a66c2;color:#fff;border-radius:999px;width:36px;height:36px;text-decoration:none;font-weight:900;}
.badge{display:inline-block;margin-top:8px;padding:6px 10px;border-radius:999px;font-weight:700;font-size:13px;}
.badge.exec{background:#e6f9ef;color:#0b5a36;} .badge.mentor{background:#d6e9ff;color:#0b3a66;} .badge.founder{background:#ffe0d6;color:#7a2a12;}
.footer{background:#021433;color:#cbd5e1;padding:28px 0;margin-top:40px;text-align:center;border-top:4px solid var(--accent);}
.footer a{color:#fff;text-decoration:none;} .small{color:var(--muted);font-size:14px;}
/* Founders Grid */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

/* Profile Card */
.profile-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  padding: 16px;
  text-align: center;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.profile-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

/* Avatar */
.member-avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto 12px;
}
.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #eee;
}

/* Name & Info */
.profile-card h3 {
  font-size: 1.1rem;
  margin: 8px 0 4px;
  color: #002147; /* IIT blue */
}
.profile-card p.small {
  font-size: 0.9rem;
  color: #555;
}

/* LinkedIn Hover Icon */
.linkedin-hover {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #0077b5;
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.linkedin-hover a {
  color: #fff;
  font-weight: bold;
  text-decoration: none;
}
.profile-card:hover .linkedin-hover {
  opacity: 1;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin-top: 20px;
}
.stat-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  padding: 20px;
  text-align: center;
  transition: transform 0.2s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
}
.stat-card h3 {
  font-size: 2rem;
  color: #002147; /* IIT Blue */
  margin: 0 0 6px;
}
.stat-card p {
  font-size: 1rem;
  color: #666;
  margin: 0;
}
.stats-section {
  background: linear-gradient(135deg, #002147 0%, #004080 100%);
  color: #fff;
  padding: 60px 20px;
  border-radius: 12px;
  margin-top: 40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin-top: 20px;
}
.stat-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.3);
}
.stat-card .icon {
  font-size: 2rem;
  margin-bottom: 10px;
}
.stat-card h3 {
  font-size: 2rem;
  color: #fff;
  margin: 0 0 6px;
}
.stat-card p {
  font-size: 1rem;
  color: #ddd;
  margin: 0;
}
.menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
}
@media (max-width: 768px) {
  .main-nav {
    display: none;
    flex-direction: column;
    gap: 10px;
    background: #002147;
    padding: 20px;
    border-radius: 8px;
  }
  .main-nav.active {
    display: flex;
  }
  .menu-toggle {
    display: block;
    color: #002147;
  }
  .menu-toggle.active {
    color: #fff;
  }
}
.footer {
  background: #002147;
  color: #fff;
  padding: 30px 20px;
  margin-top: 40px;
}
.footer-flex {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
}
.footer-left p {
  margin: 4px 0;
}
.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.footer-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}
.footer-nav a:hover {
  color: #ffcc00; /* gold accent */
}
@media (min-width: 768px) {
  .footer-flex {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}