/* Base Styles */
:root {
    --black: #000000;
    --dark-gray: #121212;
    --medium-gray: #2d2d2d;
    --light-gray: #666666;
    --white: #ffffff;
    --accent: #ffffff;
    --text-primary: rgba(255, 255, 255, 0.87);
    --text-secondary: rgba(255, 255, 255, 0.6);
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--black);
    color: var(--text-primary);
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) 0;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -1px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

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

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

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: var(--spacing-md);
}

.nav-links a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 2px;
    background-color: var(--white);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--dark-gray);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.subtitle {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.cta-button {
    display: inline-block;
    padding: 12px 28px;
    border: 1px solid var(--white);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.cta-button:hover {
    background-color: var(--white);
    color: var(--black);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

/* Process Section */
.process-step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    opacity: 0.4;
}

/* Updated Gallery Styles */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    transition: var(--transition);
}

.gallery img:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Image Size Classes */
.large-image {
    width: 450px;
    height: auto;
    max-width: 100%;
}

.medium-image {
    width: 350px;
    height: auto;
    max-width: 100%;
}

.full-width-image {
    width: 100%;
    height: auto;
}

/* Documentation Section */
.documentation-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.doc-card {
    background-color: var(--medium-gray);
    padding: var(--spacing-md);
    border-radius: 4px;
    transition: var(--transition);
}

.doc-card:hover {
    transform: translateY(-5px);
}

.doc-card i {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.card-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-weight: 600;
    position: relative;
}

.card-link::after {
    content: '→';
    margin-left: 4px;
    transition: var(--transition);
}

.card-link:hover::after {
    margin-left: 8px;
}

/* Contact Section */
.contact {
    text-align: center;
    background-color: var(--dark-gray);
}

.contact-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-link {
    display: flex;
    align-items: center;
    font-size: 1.1rem;
}

.contact-link i {
    margin-right: var(--spacing-xs);
}

/* Project Screenshots Gallery */
.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.screenshot-gallery img {
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.screenshot-gallery img:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-md) 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--medium-gray);
}

footer i {
    color: #ff4d4d;
    font-size: 0.8rem;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0;
        top: 60px;
        background-color: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        height: calc(100vh - 60px);
        width: 50%;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        padding: var(--spacing-lg) 0;
        transform: translateX(100%);
        transition: var(--transition);
    }
    
    .nav-links li {
        margin: 0;
    }
    
    .burger {
        display: block;
    }
    
    .nav-active {
        transform: translateX(0);
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .about-content,
    .process-step {
        grid-template-columns: 1fr;
    }
    
    .step-number {
        font-size: 2.5rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
    }
}