/* Base Styles */
:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #C8E6C9;
    --primary-lighter: #E8F5E9;
    --text-color: #333;
    --text-light: #666;
    --background-color: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --border-radius: 8px;
    
    /* Golden ratio constants */
    --golden-ratio: 1.618;
    --base-unit: 1rem;
    --small-spacing: calc(var(--base-unit) / var(--golden-ratio));
    --medium-spacing: var(--base-unit);
    --large-spacing: calc(var(--base-unit) * var(--golden-ratio));
    --xlarge-spacing: calc(var(--base-unit) * var(--golden-ratio) * var(--golden-ratio));
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--medium-spacing);
}

/* Header Styles */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--medium-spacing) var(--medium-spacing);
}

.logo img {
    height: 40px;
    width: auto;
}

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

nav ul li {
    margin-left: var(--large-spacing);
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease-in-out;
}

nav ul li a:hover::after {
    width: 100%;
}

/* Main Content Styles */
main {
    margin-top: calc(var(--xlarge-spacing) * 2);
}

section {
    padding: var(--xlarge-spacing) 0;
}

section:nth-child(even) {
    background-color: var(--white);
    box-shadow: inset 0 4px 4px -4px rgba(0,0,0,0.05), 
                inset 0 -4px 4px -4px rgba(0,0,0,0.05);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
    padding: calc(var(--xlarge-spacing) * 3) 0;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.hero h2 {
    font-size: calc(2rem * var(--golden-ratio));
    margin-bottom: var(--medium-spacing);
    text-shadow: 0 4px 8px rgba(0,0,0,0.4);
    color: #ffffff;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--large-spacing);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    color: #f8f9fa;
}

.cta-button {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-color);
    padding: calc(var(--medium-spacing) * var(--golden-ratio)) calc(var(--large-spacing) * var(--golden-ratio));
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: 2px solid var(--white);
}

.cta-button:hover {
    background-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.2);
}

/* Section Headings */
section h2 {
    text-align: center;
    margin-bottom: var(--xlarge-spacing);
    color: var(--primary-dark);
    font-size: calc(1.5rem * var(--golden-ratio));
}

/* Services Styles */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--xlarge-spacing);
    margin-top: var(--large-spacing);
}

.service {
    background-color: var(--white);
    padding: var(--large-spacing);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--medium-spacing);
}

.service h3 {
    color: var(--primary-color);
    margin-bottom: var(--small-spacing);
    font-size: 1.4rem;
}

.service p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Portfolio Styles */
#portfolio {
    text-align: center;
}

.portfolio-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--large-spacing);
    margin-top: var(--large-spacing);
}

.portfolio-item {
    background: var(--primary-lighter);
    border-radius: var(--border-radius);
    padding: var(--medium-spacing);
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    background: var(--primary-light);
    transform: scale(1.03);
}

.portfolio-placeholder {
    background: var(--primary-color);
    color: white;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    margin-bottom: var(--small-spacing);
    font-weight: bold;
    font-size: 3rem;
}

.portfolio-item h3 {
    margin: var(--small-spacing) 0;
    color: var(--primary-dark);
    font-size: 1.2rem;
}

.portfolio-item p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

/* About Styles */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--xlarge-spacing);
    align-items: start;
    padding: 0 var(--medium-spacing);
}

.about-text p {
    margin-bottom: var(--medium-spacing);
    font-size: 1.1rem;
    color: var(--text-light);
}

.about-values h3 {
    color: var(--primary-color);
    margin-bottom: var(--small-spacing);
}

.about-values ul {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--small-spacing);
}

.about-values li {
    margin-bottom: var(--small-spacing);
    padding-left: 1.5rem;
    position: relative;
}

.about-values li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

@media (max-width: 768px) {
    .about-values ul {
        grid-template-columns: 1fr 1fr;
        gap: var(--medium-spacing);
    }
}

/* Contact Styles */
#contact .container {
    max-width: 800px;
}

#contact h2 {
    text-align: center;
    margin-bottom: var(--xlarge-spacing);
    color: var(--primary-dark);
    font-size: calc(1.5rem * var(--golden-ratio));
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--xlarge-spacing);
    background: var(--white);
    padding: var(--xlarge-spacing);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--medium-spacing);
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--medium-spacing);
    font-size: 1.4rem;
}

.contact-info p {
    margin-bottom: var(--medium-spacing);
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.6;
}

#contact form {
    display: flex;
    flex-direction: column;
}

#contact label {
    margin-bottom: calc(var(--small-spacing) / 2);
    font-weight: 500;
    color: var(--text-color);
}

#contact input,
#contact textarea {
    padding: var(--small-spacing) var(--medium-spacing);
    margin-bottom: var(--medium-spacing);
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
    background: var(--primary-lighter);
}

#contact input:focus,
#contact textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
    background: var(--white);
    transform: translateY(-1px);
}

#contact textarea {
    min-height: 120px;
    resize: vertical;
}

#contact button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: var(--medium-spacing) var(--large-spacing);
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
    align-self: flex-start;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-top: var(--small-spacing);
}

#contact button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

/* Thank You Message Styles */
.thank-you-message {
    text-align: center;
    padding: var(--xlarge-spacing);
    background: var(--primary-lighter);
    border-radius: var(--border-radius);
    border: 2px solid var(--primary-color);
}

.thank-you-icon {
    font-size: 4rem;
    margin-bottom: var(--medium-spacing);
}

.thank-you-message h3 {
    color: var(--primary-dark);
    margin-bottom: var(--medium-spacing);
    font-size: 1.8rem;
}

.thank-you-message p {
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Footer Styles */
footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: var(--large-spacing) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo img {
    height: 30px;
    margin-bottom: var(--medium-spacing);
}

.footer-info p {
    margin: calc(var(--small-spacing) / 2) 0;
    color: var(--primary-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: var(--small-spacing) var(--medium-spacing);
    }
    
    .logo {
        margin-bottom: var(--small-spacing);
    }
    
    nav {
        display: none;
    }
    
    main {
        margin-top: calc(var(--large-spacing) * 3);
    }
    
    .hero {
        padding: var(--xlarge-spacing) 0;
    }
    
    .hero h2 {
        font-size: calc(1.5rem * var(--golden-ratio));
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--large-spacing);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--large-spacing);
    }
    
    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--small-spacing);
    }
    
    section {
        padding: var(--large-spacing) 0;
    }
    
    .hero {
        padding: var(--large-spacing) 0;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: var(--small-spacing);
    }
}