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

:root {
    --color-stone: #f5f4f0;
    --color-sand: #e8e4d9;
    --color-warm-gray: #9c9892;
    --color-dark-gray: #4a4a46;
    --color-black: #1a1a1a;
    --color-white: #ffffff;
    --color-accent: #2c2c2a;

    --font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 2.5rem;
    --font-size-3xl: 3.5rem;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --border-radius: 0.25rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 300;
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-2xl);
    font-weight: 400;
}

h3 {
    font-size: var(--font-size-lg);
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
    color: var(--color-dark-gray);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-sand);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-black);
    margin: 0;
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--color-dark-gray);
    font-weight: 400;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--color-black);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--color-warm-gray);
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-warm-gray);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-btn:hover,
.lang-btn.active {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-stone) 0%, var(--color-white) 100%);
    padding-top: 80px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    max-width: 500px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-warm-gray);
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    letter-spacing: 0.02em;
}

.cta-button:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

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

.hero-image-placeholder {
    width: 100%;
    height: 500px;
    background: linear-gradient(45deg, var(--color-sand), var(--color-warm-gray));
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

/* Image integration classes */
.hero-image-placeholder.has-image::before {
    display: none;
}

.project-image,
.architectural-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.project-image:hover {
    transform: scale(1.02);
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text h2 {
    margin-bottom: var(--spacing-lg);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--color-stone), var(--color-sand));
    border-radius: var(--border-radius);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-stone);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    font-weight: 400;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--color-warm-gray), var(--color-dark-gray));
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg) auto;
}

.service-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.service-card p {
    color: var(--color-dark-gray);
    margin: 0;
}

/* Projects Section */
.projects {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-3xl);
    color: var(--color-warm-gray);
    font-size: var(--font-size-md);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.project-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: none;
}

.project-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.project-card.featured .project-image {
    height: 400px;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-sand), var(--color-warm-gray));
    transition: var(--transition);
}

.project-card:hover .project-image-placeholder {
    transform: scale(1.05);
}

.project-status {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-price {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.price-tag {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: var(--color-white);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-md);
    letter-spacing: 0.025em;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    position: relative;
}

.price-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    border-radius: var(--border-radius);
}

.project-info {
    padding: var(--spacing-xl);
}

.project-card.featured .project-info {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-info h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.project-specs {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.spec-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-black);
    line-height: 1;
}

.spec-label {
    font-size: var(--font-size-xs);
    color: var(--color-warm-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.project-description {
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-actions {
    margin-top: auto;
}

.btn-view-details {
    background: transparent;
    border: 2px solid var(--color-black);
    color: var(--color-black);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-weight: 500;
    font-size: var(--font-size-md);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: 100%;
}

.btn-view-details:hover {
    background: var(--color-black);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Project Section - Legacy Support */
.project {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.project-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.project-details {
    display: flex;
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
}

.project-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 300;
    color: var(--color-black);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-warm-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.project-gallery {
    display: grid;
    grid-template-rows: 2fr 1fr;
    gap: var(--spacing-md);
    height: 500px;
}

.project-image-main {
    background: linear-gradient(135deg, var(--color-sand), var(--color-warm-gray));
    border-radius: var(--border-radius);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.project-image-main:hover {
    transform: scale(1.01);
    box-shadow: var(--box-shadow);
}

.project-images-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.project-image-small {
    background: linear-gradient(45deg, var(--color-stone), var(--color-sand));
    border-radius: var(--border-radius);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.project-image-small:hover {
    transform: scale(1.02);
    box-shadow: var(--box-shadow);
}

/* Process Section */
.process {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-stone);
}

.process-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    align-items: flex-start;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--color-black);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: var(--font-size-md);
    border-radius: 50%;
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    margin: 0;
    color: var(--color-dark-gray);
}

/* Values Section */
.values {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.value-item {
    text-align: center;
}

.value-item h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.value-item p {
    margin: 0;
    color: var(--color-dark-gray);
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-stone);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-text h2 {
    margin-bottom: var(--spacing-lg);
}

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

.contact-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.contact-label {
    font-weight: 500;
    color: var(--color-dark-gray);
}

.contact-value {
    color: var(--color-black);
}

.contact-form {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-sand);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    background-color: var(--color-white);
    color: var(--color-dark-gray);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-black);
    box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-button {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-black);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

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

.footer-logo h3 {
    color: var(--color-white);
    margin: 0;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.footer-text {
    color: var(--color-warm-gray);
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--color-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--box-shadow);
        padding: var(--spacing-lg) 0;
        border-top: 1px solid var(--color-sand);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

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

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

    .language-switcher {
        gap: 0.25rem;
    }

    .lang-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .hero-visual {
        order: -1;
    }

    .hero-image-placeholder {
        height: 300px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .about-visual {
        order: -1;
    }

    .about-image-placeholder {
        height: 300px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .project-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .project-gallery {
        height: 400px;
    }

    .project-details {
        justify-content: center;
    }

    .process-step {
        gap: var(--spacing-lg);
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .hero-container {
        padding: 0 var(--spacing-md);
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    h2 {
        font-size: var(--font-size-xl);
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }

    .hero-subtitle {
        font-size: var(--font-size-md);
    }
}

@media (max-width: 480px) {
    .hero-image-placeholder {
        height: 250px;
    }

    .about-image-placeholder {
        height: 250px;
    }

    .project-gallery {
        height: 300px;
    }

    .project-details {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .step-number {
        width: 50px;
        height: 50px;
    }

    .process-step {
        gap: var(--spacing-md);
    }

    .contact-form {
        padding: var(--spacing-lg);
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-card.featured {
        grid-column: span 1;
        display: block;
    }

    .project-card.featured .project-image {
        height: 280px;
    }

    .project-specs {
        justify-content: center;
        gap: var(--spacing-md);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-black);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .hamburger {
        display: none;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    section {
        padding: var(--spacing-lg) 0 !important;
    }
}