/* --- RESET & BASE STYLES --- */
:root {
    --primary-color: #0056b3; /* Professional Tech Blue */
    --secondary-color: #00a8e8; /* Lighter accent blue */
    --dark-text: #333333;
    --light-text: #666666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --section-padding: 80px 0;
}

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

html {
    scroll-behavior: smooth;
}

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

/* --- UTILITIES --- */
.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

.bg-light { background-color: var(--bg-light); }
.bg-blue { background-color: var(--primary-color); }
.text-white { color: var(--white); }
.text-center { text-align: center; }
.section-pad { padding: var(--section-padding); }

h1, h2, h3 { color: var(--dark-text); line-height: 1.2; }
h1 { font-size: 3rem; font-weight: 800; margin-bottom: 20px; }
h2 { font-size: 2.2rem; margin-bottom: 15px; }
h3 { font-size: 1.3rem; margin-bottom: 10px; }
p { margin-bottom: 20px; color: var(--light-text); }
.text-white h2, .text-white p { color: var(--white); }

a { text-decoration: none; }

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}
.btn-primary:hover { background-color: #004494; transform: translateY(-2px); }

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 10px;
}
.btn-secondary:hover { background-color: var(--primary-color); color: var(--white); }

.btn-white {
    background-color: var(--white);
    color: var(--primary-color);
}
.btn-white:hover { background-color: #f0f0f0; transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.btn-large { padding: 16px 36px; font-size: 1.1rem; }

/* --- NAVBAR --- */
.navbar {
    padding: 1rem 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid #eee;
}
.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
}
.nav-links li { margin-left: 30px; }
.nav-links a { color: var(--dark-text); font-weight: 600; font-size: 0.9rem; }
.nav-links .btn-primary { color: var(--white); }

/* --- HERO --- */
.hero {
    padding: 100px 0;
    background: linear-gradient(to right, #ffffff 50%, #f0f7ff 50%);
}
.hero-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.hero-text { flex: 1; padding-right: 50px; }
.hero-text p { font-size: 1.1rem; max-width: 450px; }
.hero-image-placeholder { flex: 1; }

/* --- SERVICES --- */
.section-header { text-align: center; max-width: 600px; margin: 0 auto 60px auto; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
    border-top: 4px solid transparent;
}
.service-card:hover {
    transform: translateY(-10px);
    border-top: 4px solid var(--secondary-color);
}
.icon-box {
    font-size: 3rem;
    margin-bottom: 20px;
    background: #e6f0ff;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* --- HOW IT WORKS --- */
.two-col-flex { display: flex; align-items: center; gap: 50px; }
.col-text { flex: 1; }
.col-image { flex: 1; }
.benefit-list { list-style: none; margin-top: 30px; }
.benefit-list li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
    color: var(--light-text);
}
.benefit-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* --- FOOTER --- */
footer { padding: 50px 0; background: #333; color: #aaa; }
.footer-flex { display: flex; justify-content: space-between; align-items: center; }
.footer-logo h3 { color: var(--white); margin-bottom: 5px; }

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    .nav-links { display: none; } /* Hiding nav links on mobile for simplicity */
    .hero { padding: 60px 0; background: var(--white); }
    .hero-flex, .two-col-flex, .footer-flex { flex-direction: column; text-align: center; }
    .hero-text { padding-right: 0; margin-bottom: 40px; }
    .hero-btns { display: flex; flex-direction: column; gap: 10px; }
    .btn-secondary { margin-left: 0; }
    .col-image { order: -1; margin-bottom: 30px; width: 100%; }
    .footer-flex { gap: 20px; }
    .benefit-list li { text-align: left; display: inline-block; }
}