:root {
    --bg-dark: #0a0b10;
    --card-bg: #161922;
    --accent: #00d4ff;
    --text: #ffffff;
}

body { background: var(--bg-dark); color: var(--text); font-family: 'Inter', sans-serif; margin: 0; line-height: 1.6; }

/* Navigation */
nav { display: flex; justify-content: space-between; padding: 2rem 10%; align-items: center; }
.logo { font-weight: 800; font-size: 1.5rem; letter-spacing: 2px; }
nav ul { display: flex; list-style: none; gap: 20px; align-items: center; }
.nav-cta { padding: 10px 20px; border: 1px solid var(--accent); border-radius: 5px; color: var(--accent); text-decoration: none; }

/* Hero */
.hero { padding: 100px 10%; text-align: center; }
h1 { font-size: 3.5rem; margin-bottom: 1rem; }
.tagline { color: var(--accent); font-size: 1.2rem; margin-bottom: 2rem; }

/* Buttons */
.btn-primary { background: var(--accent); color: var(--bg-dark); padding: 15px 30px; border-radius: 5px; text-decoration: none; font-weight: bold; }
.btn-secondary { border: 2px solid var(--accent); color: var(--accent); padding: 13px 30px; border-radius: 5px; text-decoration: none; font-weight: bold; margin-left: 10px; }

/* Stats & Grid */
.stats { display: flex; justify-content: space-around; padding: 40px 10%; background: #0f121a; text-align: center; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; padding: 40px 10%; }
.card { background: var(--card-bg); padding: 2rem; border-left: 4px solid var(--accent); }

/* Case Study & Testimonials */
.case-study { padding: 40px 10%; text-align: center; }
.case-box { border: 1px solid var(--accent); padding: 2rem; display: inline-block; border-radius: 10px; text-align: left; }
.highlight { color: var(--accent); font-size: 1.5rem; }
.t-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; padding: 40px 10%; }
.t-card { background: var(--card-bg); padding: 2rem; border-radius: 10px; }

/* Contact */
.contact { padding: 80px 10%; text-align: center; background: #0f121a; }
.contact-box { margin-top: 20px; }

footer { text-align: center; padding: 2rem; opacity: 0.5; }