:root {
    --primary: #1B6CA8;
    --secondary: #E8F4FD;
    --text: #333;
    --text-light: #666;
    --white: #ffffff;
    --accent: #FF9800;
    --container: 1200px;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: #f9f9f9;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3 {
    margin-bottom: 20px;
    color: var(--primary);
    line-height: 1.2;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }

/* Header & Nav */
.top-bar {
    background: var(--primary);
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 0.9rem;
    font-weight: 500;
}

header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: bold;
}

.logo i { width: 32px; height: 32px; }

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.cta-nav {
    background: var(--primary);
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
}

/* Sections */
section {
    padding: 80px 0;
}

.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Hero */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.pexels.com/photos/30958770/pexels-photo-30958770.jpeg?auto=compress&cs=tinysrgb&fit=crop&h=1200&w=1920');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 120px 0;
    text-align: center;
}

.hero h1 { color: white; margin-bottom: 20px; }
.hero p { font-size: 1.3rem; margin-bottom: 40px; max-width: 800px; margin-inline: auto; }

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-accent {
    background: var(--accent);
    color: white;
}

.btn-lg { padding: 18px 45px; font-size: 1.2rem; }

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* Cards & Grids */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
}

.card:hover { transform: translateY(-5px); }
.card i { color: var(--primary); width: 50px; height: 50px; margin-bottom: 20px; }

/* Table */
.price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.price-table th, .price-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.price-table th {
    background: var(--primary);
    color: white;
}

/* Footer */
footer {
    background: #111;
    color: #ccc;
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-about .logo { color: white; margin-bottom: 20px; }
.footer-links h4, .footer-contact h4 { color: white; margin-bottom: 20px; }
.footer-links ul, .footer-contact ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #ccc; text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: white; }
.footer-contact li { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }

.footer-bottom {
    border-top: 1px solid #222;
    padding: 30px 0;
    text-align: center;
    font-size: 0.85rem;
}

/* Calculator */
.calc-container {
    background: var(--secondary);
    padding: 40px;
    border-radius: 15px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#calc-result {
    margin-top: 20px;
    padding: 20px;
    background: white;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
    display: none;
    border: 2px solid var(--primary);
}

/* Split Section */
.split-section {
    display: flex;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.split-section > div { flex: 1; min-width: 300px; }

/* Lists */
.check-list { list-style: none; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; }

/* Responsive */
@media (max-width: 992px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .mobile-menu-btn { display: block; }
    .grid-3 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero { padding: 80px 0; }
}