/* Design System */
:root {
    /* Colors */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
}

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

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    padding: var(--spacing-md) 0;
    z-index: 1000;
    transition: transform var(--transition-normal);
}

.nav.hidden {
    transform: translateY(-100%);
}

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

.nav__logo {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--color-black);
}

.nav__toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1001;
}

.nav__toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    margin: 4px 0;
    transition: transform var(--transition-fast),
                opacity var(--transition-fast);
}

.nav__links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    text-decoration: none;
    color: var(--color-black);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-gray-600);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-2xl) 0;
}

.hero__content {
    max-width: 1200px;
}

.hero__split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero__text {
    padding-right: var(--spacing-xl);
}

.hero__image-container {
    position: relative;
    height: 100%;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

/* Featured Section */
.featured {
    background-color: var(--color-gray-100);
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.btn:hover {
    background-color: var(--color-gray-800);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
}

.gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
}

.gallery__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.gallery__item:hover .gallery__image {
    transform: scale(1.05);
}

.gallery__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--color-white);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery__item:hover .gallery__caption {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav__toggle {
        display: block;
    }

    .nav__links {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-xl);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        z-index: 1000;
    }

    .nav__links.active {
        transform: translateX(0);
    }

    .nav__toggle.active .nav__toggle-line:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .nav__toggle.active .nav__toggle-line:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active .nav__toggle-line:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .nav__link {
        font-size: 1.25rem;
    }

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .hero__split {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero__text {
        padding-right: 0;
    }

    .hero__image-container {
        width: 100%;
        height: 400px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* Contact Section */
.contact {
    background-color: var(--color-white);
}

.contact__content {
    max-width: 600px;
    margin: 0 auto;
}

.contact__username {
    font-family: var(--font-secondary);
    font-size: 1.25rem;
}

.btn--outline {
    background-color: transparent;
    border: 2px solid var(--color-black);
    color: var(--color-black);
    padding: 0.75rem 2rem;
}

.btn--outline:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}