:root {
    --river-blue: #004e92;
    --dark-blue: #000428;
    --steel-grey: #636e72;
    --white: #ffffff;
    --light-grey: #f5f6fa;
    
    --font-head: 'Barlow', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--light-grey);
    color: var(--dark-blue);
    line-height: 1.6;
}

.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; transition: 0.3s; }

/* Top Bar */
.top-header { background-color: var(--dark-blue); color: #ccc; font-size: 0.8rem; padding: 5px 0; text-align: right; }
.top-header span { margin-left: 20px; }

/* Header */
.river-header { background-color: var(--white); padding: 20px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
.header-flex { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-head); font-size: 1.8rem; font-weight: 700; color: var(--dark-blue); letter-spacing: 1px; }
.blue { color: var(--river-blue); }
.wave-icon { font-size: 1.5rem; margin-left: 5px; color: var(--river-blue); }

.river-nav ul { display: flex; gap: 30px; list-style: none; align-items: center; }
.river-nav a { font-family: var(--font-head); text-transform: uppercase; font-weight: 600; color: var(--steel-grey); font-size: 0.95rem; }
.river-nav a:hover, .river-nav a.active { color: var(--river-blue); }

.btn-river { background-color: var(--river-blue); color: var(--white) !important; padding: 10px 25px; border-radius: 4px; }
.btn-river:hover { background-color: var(--dark-blue); }

/* Mobile Menu */
.mobile-toggle { display: none; background: none; border: 1px solid var(--river-blue); color: var(--river-blue); padding: 5px 10px; cursor: pointer; }
.mobile-menu { position: fixed; top: 0; right: -100%; width: 280px; height: 100%; background: var(--white); z-index: 2000; padding: 40px; display: flex; flex-direction: column; transition: 0.3s; border-left: 1px solid #ddd; }
.mobile-menu.active { right: 0; }
.close-menu { align-self: flex-end; background: none; border: none; font-size: 1.5rem; margin-bottom: 20px; cursor: pointer; }
.mobile-menu a { padding: 15px 0; border-bottom: 1px solid #eee; font-weight: 600; }

/* Hero */
.hero-river {
    height: 600px; background-size: cover; background-position: center; position: relative;
}
.hero-overlay {
    width: 100%; height: 100%; background: linear-gradient(to right, rgba(0, 4, 40, 0.8) 0%, rgba(0, 78, 146, 0.4) 100%);
    display: flex; align-items: center;
}
.hero-content { padding-left: 10%; max-width: 700px; color: var(--white); }
.sub-head { font-family: var(--font-head); letter-spacing: 2px; font-size: 0.9rem; color: #a2d9ff; display: block; margin-bottom: 15px; }
.hero-content h1 { font-family: var(--font-head); font-size: 3.5rem; line-height: 1.1; margin-bottom: 20px; }
.hero-content p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }

.tracking-box { display: flex; background: rgba(255,255,255,0.1); padding: 10px; border-radius: 4px; backdrop-filter: blur(5px); }
.tracking-box input { flex: 1; padding: 10px; border: none; border-radius: 2px; margin-right: 10px; }
.tracking-box button { background-color: var(--river-blue); color: var(--white); border: none; padding: 10px 20px; font-weight: bold; cursor: pointer; border-radius: 2px; }
.tracking-box button:hover { background-color: var(--white); color: var(--river-blue); }

/* Services */
.section-padding { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-family: var(--font-head); font-size: 2.5rem; color: var(--dark-blue); margin-bottom: 10px; }
.blue-line { width: 80px; height: 4px; background-color: var(--river-blue); margin: 0 auto; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card { background: var(--white); padding: 40px 30px; border-radius: 5px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); text-align: center; transition: 0.3s; border-bottom: 4px solid transparent; }
.service-card:hover { transform: translateY(-5px); border-bottom-color: var(--river-blue); }
.icon { font-size: 3rem; margin-bottom: 20px; }
.service-card h3 { font-family: var(--font-head); margin-bottom: 15px; color: var(--dark-blue); }

/* About & Testimonials */
.page-header { background-color: var(--river-blue); color: var(--white); padding: 60px 0; text-align: center; }
.page-header h1 { font-family: var(--font-head); font-size: 3rem; }

.about-layout { display: flex; gap: 50px; align-items: center; }
.text-block { flex: 1; }
.text-block h2 { font-family: var(--font-head); font-size: 2rem; margin-bottom: 20px; }
.blue-line-left { width: 60px; height: 4px; background-color: var(--river-blue); margin-bottom: 30px; }
.stats-list { list-style: none; margin-top: 30px; }
.stats-list li { margin-bottom: 10px; font-size: 1.1rem; border-bottom: 1px solid #ddd; padding-bottom: 5px; }
.stats-list strong { color: var(--river-blue); margin-right: 10px; }
.image-block { flex: 1; }
.image-block img { width: 100%; border-radius: 5px; box-shadow: 20px 20px 0 var(--dark-blue); }

.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.review-box { background: var(--white); padding: 30px; border-radius: 5px; border: 1px solid #eee; }
.stars { color: #f1c40f; margin-bottom: 15px; }
.review-box p { font-style: italic; color: #555; margin-bottom: 20px; }
.client { font-weight: bold; color: var(--river-blue); }

/* Contact Form */
.contact-wrapper { display: flex; background: var(--white); border-radius: 5px; overflow: hidden; box-shadow: 0 10px 40px rgba(0,0,0,0.05); }
.contact-info { flex: 1; background-color: var(--dark-blue); color: var(--white); padding: 50px; }
.contact-info h2 { font-family: var(--font-head); margin-bottom: 20px; color: #a2d9ff; }
.details p { margin-bottom: 10px; font-size: 1.1rem; }

.river-form { flex: 1.5; padding: 50px; }
.form-row { display: flex; gap: 20px; margin-bottom: 20px; }
.form-group { flex: 1; margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: bold; color: var(--dark-blue); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; font-family: var(--font-body); }
.submit-btn { width: 100%; background-color: var(--river-blue); color: var(--white); border: none; padding: 15px; font-weight: bold; cursor: pointer; transition: 0.3s; }
.submit-btn:hover { background-color: var(--dark-blue); }

/* Legal */
.legal-content { max-width: 800px; margin: 0 auto; background: var(--white); padding: 50px; border: 1px solid #eee; }
.legal-content h1 { font-family: var(--font-head); color: var(--dark-blue); margin-bottom: 10px; }
.legal-content h3 { margin-top: 30px; margin-bottom: 10px; color: var(--river-blue); }

/* Footer */
.river-footer { background-color: var(--white); padding: 50px 0; border-top: 5px solid var(--river-blue); margin-top: auto; text-align: center; }
.f-brand { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; color: var(--dark-blue); margin-bottom: 20px; }
.f-links a { color: var(--steel-grey); margin: 0 15px; font-weight: 500; }
.f-links a:hover { color: var(--river-blue); }
.copyright { margin-top: 30px; font-size: 0.8rem; color: #999; }

@media (max-width: 900px) {
    .river-nav { display: none; }
    .mobile-toggle { display: block; }
    .hero-content h1 { font-size: 2.5rem; }
    .service-grid, .about-layout, .reviews-grid, .contact-wrapper, .form-row { grid-template-columns: 1fr; flex-direction: column; }
    .contact-info, .river-form { padding: 30px; }
}