:root {
    --primary: #1e3a8a;
    --primary-light: #2563eb;
    --secondary: #10b981;
    --dark: #0f172a;
    --light: #f8fafc;
    --text: #334155;
    --white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
body { font-family: 'Inter', sans-serif; color: var(--text); line-height: 1.6; background-color: var(--light); scroll-behavior: smooth; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; width: 100%; }

/* NAVIGATION */
header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
nav { display: flex; justify-content: space-between; align-items: center; }
.logo-wrapper { display: flex; align-items: center; text-decoration: none; gap: 12px; }
.main-logo { height: 50px; width: auto; }
.brand-info { display: flex; flex-direction: column; }
.brand-name { font-size: 1.3rem; font-weight: 800; color: var(--primary); line-height: 1; }
.brand-tagline { font-size: 0.75rem; font-weight: 600; color: var(--secondary); letter-spacing: 1.5px; }

.nav-links { list-style: none; display: flex; align-items: center; }
.nav-links li { margin-left: 20px; }
.nav-links a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 0.95rem; }
.nav-cta { background: var(--primary); color: white !important; padding: 8px 16px; border-radius: 6px; }

/* HERO */
.hero {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.94), rgba(15, 23, 42, 0.96)), url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&q=80&w=1200');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}
.hero-brand-img { height: 100px; margin-bottom: 20px; }
.hero h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 20px; line-height: 1.2; padding: 0 10px; }
.hero p { font-size: 1.2rem; margin-bottom: 35px; opacity: 0.95; padding: 0 20px; }

.cta-buttons { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.btn { padding: 14px 28px; border-radius: 10px; font-weight: 700; cursor: pointer; border: none; font-size: 1rem; transition: transform 0.2s; }
.btn-primary { background: var(--secondary); color: white; }
.btn-secondary { background: rgba(255,255,255,0.15); color: white; border: 1px solid rgba(255,255,255,0.3); }

/* SECTIONS */
section { padding: 60px 0; }
.section-header { text-align: center; margin-bottom: 30px; }
.accent-bar { width: 50px; height: 4px; background: var(--secondary); margin: 10px auto; border-radius: 10px; }

.about-brief {
    max-width: 850px;
    margin: 0 auto 50px;
    text-align: center;
    font-size: 1.15rem;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 25px; }
.service-card { background: var(--white); padding: 35px 25px; border-radius: 18px; box-shadow: 0 10px 30px rgba(0,0,0,0.04); text-align: center; border-top: 5px solid var(--secondary); }
.service-icon { font-size: 2.2rem; margin-bottom: 15px; }

/* CONTACT */
.contact-section { background: var(--white); }
.contact-header { text-align: center; margin-bottom: 35px; }
.styled-form { max-width: 550px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
input, textarea { background: #f1f5f9; border: 2px solid transparent; padding: 14px; border-radius: 8px; font-size: 16px; width: 100%; } /* font-size 16px prevents iOS zoom */

footer { background: var(--dark); color: white; text-align: center; padding: 50px 0; }
.footer-logo { height: 50px; margin-bottom: 15px; opacity: 0.8; }

/* MOBILE & TABLET OPTIMIZATIONS */
@media (max-width: 1024px) {
    .container { padding: 0 30px; }
    .hero h1 { font-size: 2.5rem; }
}

@media (max-width: 768px) {
    .nav-links { display: none; } /* Standard for simple sites, or replace with burger */
    .hero { padding: 60px 0; }
    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1.1rem; }
    .cta-buttons { flex-direction: column; width: 90%; margin: 0 auto; }
    .btn { width: 100%; }
    .about-brief { font-size: 1rem; padding: 20px; }
    .service-grid { grid-template-columns: 1fr; }
    .brand-name { font-size: 1.1rem; }
}

@media (max-width: 480px) {
    header { padding: 8px 0; }
    .main-logo { height: 40px; }
    .hero h1 { font-size: 1.8rem; }
    .section-header h2 { font-size: 1.6rem; }
    .contact-header h2 { font-size: 1.8rem; }
}