/* Main CSS for Disk Tramp Oil Skimmers Website */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #1a5f7a;      /* Deep blue - trustworthy, professional */
    --secondary-color: #00b4d8;    /* Bright blue - clean, technical */
    --accent-color: #ffd166;       /* Gold/yellow - attention, value */
    --dark-color: #2c3e50;         /* Dark blue-gray - stability */
    --light-color: #f8f9fa;        /* Off-white - clean, spacious */
    --text-color: #333333;         /* Dark gray - readable */
    --light-text: #ffffff;         /* White text for dark backgrounds */
    --success-color: #57cc99;      /* Green - positive outcomes */
    --warning-color: #e63946;      /* Red - important notices */
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
header {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
    color: var(--light-text);
}

.logo p {
    font-size: 0.9rem;
    opacity: 0.9;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    color: var(--light-text);
    font-weight: 600;
    padding: 0.5rem;
    border-bottom: 2px solid transparent;
}

nav ul li a:hover {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    color: var(--light-text);
    padding: 5rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--dark-color);
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: #e6bc5c;
    color: var(--dark-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Intro Section */
.intro {
    padding: 4rem 0;
    background-color: #ffffff;
}

.intro h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.intro-text {
    flex: 1;
}

.intro-text p {
    margin-bottom: 1rem;
}

.intro-image {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Benefits Preview Section */
.benefits-preview {
    background-color: var(--light-color);
    padding: 4rem 0;
}

.benefits-preview h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.benefit-card {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.benefit-card img {
    margin: 0 auto 1.5rem;
}

.benefit-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.learn-more {
    text-align: center;
}

.secondary-button {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.7rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.secondary-button:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

/* CTA Section */
.cta-section {
    background-color: var(--secondary-color);
    color: var(--light-text);
    padding: 4rem 0;
    text-align: center;
}

.cta-section h2 {
    color: var(--light-text);
    margin-bottom: 1rem;
}

.cta-section p {
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Testimonials Section */
.testimonials {
    padding: 4rem 0;
    background-color: #ffffff;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.testimonial-slider {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.testimonial {
    background-color: var(--light-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    max-width: 350px;
    position: relative;
}

.testimonial:before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    top: -10px;
    left: 10px;
    color: var(--secondary-color);
    opacity: 0.2;
}

.testimonial p {
    margin-bottom: 1rem;
    font-style: italic;
}

.testimonial cite {
    font-weight: 600;
    color: var(--primary-color);
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: var(--light-text);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-info h3,
.footer-contact h3,
.footer-links h3 {
    color: var(--light-text);
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-info h3:after,
.footer-contact h3:after,
.footer-links h3:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--accent-color);
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

.footer-links ul li a:hover,
.footer-contact a:hover {
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
    }
    
    .intro-image {
        order: -1;
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 1rem;
        text-align: center;
    }
    
    nav ul {
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 0.75rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    nav ul {
        flex-wrap: wrap;
    }
    
    nav ul li {
        margin: 0.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-slider {
        flex-direction: column;
        align-items: center;
    }
}