/* Base styles - Mobile first approach */
:root {
    --background-color: #E6E1DF;
    --text-color: #504541;
    --accent-color: #645A56;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xlg: 8rem;
    --container-width: 1200px;
    --container-padding: 1.5rem;
    --border-radius: 2px;
    --transition-speed: 0.3s;
    --transition-speed-long: 0.5s;
}

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

html, body {
    height: 100%;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: "Afacad Flux", sans-serif;
    font-size: 1rem;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
    font-variation-settings: "slnt" 0;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

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

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

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

main {
    flex: 1 0 auto;
    padding-top: calc(var(--spacing-md) * 2 + 50px);
    margin: 0;
}

/* Header Styles */
.site-header {
    padding: var(--spacing-md) 0;
    background-color: rgba(230, 225, 223, 0.98);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 2000;
    backdrop-filter: blur(5px);
    transition: all 0.4s ease;
    margin: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.site-header .container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

.site-header.scrolled {
    padding: var(--spacing-sm) 0;
}

.site-header.scrolled .logo img {
    max-width: 160px;
}

.site-header.scrolled .nav-links a {
    font-size: 0.9rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img {
    max-width: 320px;
    transition: all 0.4s ease;
}

/* Intro Section */
.intro {
    text-align: center;
    padding: var(--spacing-xlg) 0 var(--spacing-lg);
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(180deg, rgba(230, 225, 223, 0.7) 0%, rgba(230, 225, 223, 0.9) 100%);
    z-index: -1;
}

.intro p {
    margin-bottom: var(--spacing-md);
}

/* CTA Button */
.cta {
    display: inline-block;
    background-color: var(--text-color);
    color: var(--background-color);
    padding: 0.9rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 400;
    transition: background-color var(--transition-speed) ease;
}

.cta:hover {
    background-color: var(--accent-color);
}

/* Portfolio Gallery */
.portfolio {
    padding: var(--spacing-xlg) 0;
    margin: 0;
    width: 100%;
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
}

.gallery-item {
    flex: 0 0 100%;
    padding: var(--spacing-xs);
    aspect-ratio: 1 / 1;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed) ease;
}

.gallery-item img:hover {
    transform: scale(1.02);
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed) ease, 
                visibility var(--transition-speed) ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    margin: auto;
}

.lightbox-image {
    display: block;
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    margin: 0 auto;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.15);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: -10px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    outline: none;
    transition: color var(--transition-speed) ease;
}

.lightbox-close:hover {
    color: var(--background-color);
}

.lightbox-controls {
    position: absolute;
    bottom: -60px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.lightbox-prev,
.lightbox-next {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: color var(--transition-speed) ease;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--background-color);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-md) 0;
    margin: 0;
    background-color: var(--accent-color);
    color: var(--background-color);
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* Contact Form */
.contact-form {
    padding: var(--spacing-md) 0;
}

.contact-form .container {
    max-width: 600px;
}

form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

input, textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--text-color);
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.5);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-speed) ease, 
                background-color var(--transition-speed) ease;
}

input {
    height: 3rem;
}

textarea {
    min-height: 150px;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.8);
}

form .cta {
    border: none;
    cursor: pointer;
    font-family: inherit;
}

/* Success Message */
.success-message {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.success-message h1 {
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.success-message p {
    margin-bottom: var(--spacing-md);
}

.action-buttons {
    margin-top: var(--spacing-lg);
}

/* Media Queries */
@media screen and (min-width: 480px) {
    :root {
        --container-padding: 1.5rem;
    }
    
    body {
        font-size: 1.1rem;
    }
    
    .logo img {
        max-width: 300px;
    }
}

@media screen and (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }
    
    body {
        font-size: 1.2rem;
    }
    
    .logo img {
        max-width: 350px;
    }
    
    .gallery-item {
        flex: 0 0 50%;
    }
    
    input, textarea {
        font-size: 1.1rem;
    }
    
    input {
        height: 3.5rem;
    }
}

@media screen and (min-width: 1024px) {
    body {
        font-size: 1.3rem;
    }
    
    .logo img {
        max-width: 400px;
    }
    
    .gallery-item {
        flex: 0 0 33.333%;
    }
    
    .success-message h1 {
        font-size: 2.5rem;
    }
    
    .contact-form .container {
        max-width: 700px;
    }
}