/* CSS Reset and Variables */
:root {
    --bg-color: #000000;
    --surface-color: #111111;
    --surface-light: #1c1c1e;
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --nav-bg: rgba(0, 0, 0, 0.75);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Splash of color: Bio-luminescent Cyan/Emerald */
    --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --accent-glow: rgba(0, 242, 254, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.03em; }

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p { font-size: 1.125rem; color: var(--text-secondary); }

/* Navigation */
nav {
    position: fixed;
    top: 0; width: 100%;
    display: flex; justify-content: space-between; align-items: center;
    padding: 16px 5%;
    background: var(--nav-bg);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo { height: 40px; width: auto; }

.nav-links { display: flex; gap: 32px; }
.nav-links a {
    color: var(--text-primary); text-decoration: none;
    font-size: 0.9rem; font-weight: 500; transition: color 0.3s ease;
}
.nav-links a:hover, .nav-links a.active { color: #4facfe; }

/* Buttons */
.btn {
    display: inline-block; padding: 14px 28px; border-radius: 30px;
    text-decoration: none; font-weight: 600; font-size: 1rem;
    transition: all 0.3s ease; border: none; cursor: pointer;
}
.btn-primary {
    background: var(--text-primary); color: var(--bg-color);
}
.btn-primary:hover {
    transform: scale(1.05); background: #ffffff; box-shadow: 0 4px 15px rgba(255,255,255,0.2);
}
.btn-accent {
    background: var(--accent-gradient); color: #000;
}
.btn-accent:hover {
    transform: scale(1.05); box-shadow: 0 4px 20px var(--accent-glow);
}

/* Layout Utilities */
.section { padding: 140px 5% 80px; max-width: 1200px; margin: 0 auto; }
.text-center { text-align: center; }

/* Cards */
.card {
    background-color: var(--surface-color); padding: 40px;
    border-radius: 24px; border: 1px solid var(--border-color);
    transition: transform 0.4s ease, border-color 0.4s ease;
}
.card:hover { transform: translateY(-5px); border-color: rgba(0, 242, 254, 0.4); }
.card h3 { font-size: 1.5rem; margin-bottom: 15px; color: var(--text-primary); }

/* Founder Grid */
.founder-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px; margin-top: 60px;
}
.founder-card {
    background: var(--surface-color); border-radius: 20px;
    overflow: hidden; border: 1px solid var(--border-color);
    text-align: center; padding-bottom: 30px;
}
.founder-img {
    width: 100%; height: 280px; background-color: var(--surface-light);
    object-fit: cover; border-bottom: 1px solid var(--border-color);
}
.founder-info { padding: 24px 20px 0; }
.founder-info h4 { font-size: 1.3rem; margin-bottom: 5px; }
.founder-info p { font-size: 0.95rem; color: #4facfe; font-weight: 600; }

/* Contact Form */
.form-group { margin-bottom: 24px; text-align: left; }
.form-group label {
    display: block; margin-bottom: 8px; font-size: 0.9rem; font-weight: 500;
}
.form-control {
    width: 100%; padding: 16px; border-radius: 12px;
    background: var(--surface-light); border: 1px solid var(--border-color);
    color: var(--text-primary); font-size: 1rem; font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus {
    outline: none; border-color: #4facfe; box-shadow: 0 0 0 3px var(--accent-glow);
}
textarea.form-control { resize: vertical; min-height: 150px; }

/* Scroll Animations */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

footer {
    border-top: 1px solid var(--border-color); padding: 40px 5%;
    text-align: center; color: var(--text-secondary); font-size: 0.9rem; margin-top: 60px;
}