:root {
    --bg: #030712;
    --card: #111827;
    --blue: #3b82f6;
    --text: #f9fafb;
    --text-muted: #94a3b8;
    --border: #1f2937;
}

body { margin: 0; font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; scroll-behavior: smooth; overflow-x: hidden; }
.container { max-width: 1100px; margin: 0 auto; padding: 100px 20px; }

/* Fixed Navigation Layout Fix */
nav { background: rgba(3, 7, 18, 0.98); position: fixed; width: 100%; top: 0; z-index: 1000; border-bottom: 1px solid var(--border); }
.nav-container { max-width: 1100px; margin: 0 auto; padding: 15px 20px; display: flex; justify-content: space-between; align-items: center; }
.nav-links { display: flex; list-style: none; gap: 30px; margin: 0; padding: 0; }
.nav-links a { color: var(--text); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: 0.3s; }
.nav-links a:hover { color: var(--blue); }

/* Sandbox */
.sandbox-card { background: linear-gradient(145deg, #1e293b, #0f172a); padding: 60px; border-radius: 24px; border: 1px solid var(--blue); text-align: center; margin-bottom: 40px; }
.sandbox-input-area { display: flex; gap: 10px; justify-content: center; margin-top: 30px; }
.sandbox-input-area input { flex: 1; max-width: 450px; padding: 15px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: white; font-family: inherit; }
.simulation-text { margin-top: 30px; padding: 20px; color: var(--blue); font-family: monospace; min-height: 50px; }

/* Typography & Headers */
.hero { min-height: 60vh; display: flex; align-items: center; text-align: center; }
.hero h1 { font-size: 4.5rem; font-weight: 800; margin-bottom: 1rem; width: 100%; letter-spacing: -2px; }
.highlight { color: var(--blue); }
.hero-subtext { font-size: 1.25rem; color: var(--text-muted); margin: 0 auto; max-width: 850px; }
.section-title { font-size: 2.5rem; margin-bottom: 40px; font-weight: 800; letter-spacing: -1px; }

/* Grid Layouts */
.services-detailed, .team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; margin-top: 40px; }
.service-block, .member, .contact-wrapper { background: var(--card); padding: 40px; border-radius: 12px; border: 1px solid var(--border); transition: 0.3s; }
.highlight-card { border-top: 4px solid var(--blue); }
.pricing { margin-top: 20px; font-weight: 700; color: var(--text); }

/* Case Studies - Detailed View */
.dark-section { background: #000; }
.study-item { margin-bottom: 60px; padding-bottom: 60px; border-bottom: 1px solid var(--border); }
.study-item h4 { color: var(--blue); margin-bottom: 20px; font-size: 1.8rem; font-weight: 800; }
.study-item p { margin-bottom: 20px; color: var(--text-muted); font-size: 1.05rem; }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 15px; margin-top: 30px; }
.contact-form input, .contact-form textarea { background: #030712; border: 1px solid var(--border); padding: 15px; color: white; border-radius: 8px; font-family: inherit; }
.btn { background: var(--blue); color: white; padding: 15px 35px; border-radius: 8px; font-weight: 700; border: none; cursor: pointer; transition: 0.3s; }
.btn:hover { background: #2563eb; transform: translateY(-2px); }

/* Legal/Footer */
.legal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 40px; border-top: 1px solid var(--border); padding-top: 40px; text-align: left; }
.legal-grid h4 { color: var(--blue); margin-bottom: 10px; }
footer { padding: 60px 20px; text-align: center; border-top: 1px solid var(--border); background: #000; }
.disclaimer { font-size: 0.75rem; color: var(--text-muted); margin-top: 10px; }

/* Mobile Support */
@media (max-width: 768px) {
    .nav-container { flex-direction: column; gap: 15px; }
    .hero h1 { font-size: 2.8rem; }
    .sandbox-input-area { flex-direction: column; }
    .legal-grid { grid-template-columns: 1fr; }
    .container { padding-top: 150px; }
}