/* ============================================
   Archi Studio - Architecture d'Intérieur
   FullDevSolutions - Demo
   ============================================ */

/* Variables */
:root {
    --color-primary: #1A1A1A;
    --color-secondary: #C9A96E;
    --color-accent: #8B7355;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F3F0;
    --color-bg-dark: #1A1A1A;
    --color-text: #1A1A1A;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #E5E5E5;
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --radius: 4px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: var(--radius);
    transition: var(--transition);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255,255,255,0.98);
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 600;
    letter-spacing: 2px;
}

.logo-accent {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 3px;
    color: var(--color-secondary);
}

.nav-list {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-link {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text);
    position: relative;
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    cursor: pointer;
}

.menu-toggle span {
    width: 24px;
    height: 1px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 120px 80px 80px 80px;
    max-width: 700px;
    margin-left: auto;
}

.hero-subtitle {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(40px, 5vw, 72px);
    font-weight: 400;
    margin-bottom: 28px;
    line-height: 1.1;
}

.hero-title .accent {
    font-style: italic;
    color: var(--color-secondary);
}

.hero-text {
    font-size: 17px;
    color: var(--color-text-light);
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(255,255,255,0.1), transparent);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.scroll-indicator span {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    writing-mode: vertical-rl;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light {
    color: #fff;
}

.section-header.light .section-text {
    color: rgba(255,255,255,0.7);
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 52px);
    margin-bottom: 16px;
}

.section-text {
    font-size: 17px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Projects Section
   ============================================ */
.projects-section {
    padding: 120px 0;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 12px 28px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--color-text-light);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
}

.project-card.large {
    grid-column: span 2;
}

.project-image {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.project-card.large .project-image {
    height: 500px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    color: #fff;
    margin-bottom: 20px;
    transform: translateY(20px);
    transition: var(--transition);
}

.project-card:hover .project-info {
    transform: translateY(0);
}

.project-info .project-category {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 8px;
    display: block;
}

.project-info .project-title {
    font-size: 26px;
    margin-bottom: 8px;
    color: #fff;
}

.project-info .project-location {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
    transition-delay: 0.1s;
}

.project-card:hover .project-link {
    transform: translateY(0);
    opacity: 1;
}

.project-link:hover {
    color: var(--color-secondary);
}

.project-before-after {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
}

.before-label,
.after-label {
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: var(--radius);
}

.before-label {
    background: rgba(255,255,255,0.9);
    color: var(--color-text);
}

.after-label {
    background: var(--color-secondary);
    color: #fff;
}

/* ============================================
   Services Section
   ============================================ */
.services-section {
    padding: 120px 0;
    background: var(--color-bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    padding: 48px 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    transition: var(--transition);
}

.service-card:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--color-secondary);
    transform: translateY(-8px);
}

.service-number {
    font-family: var(--font-heading);
    font-size: 48px;
    color: var(--color-secondary);
    margin-bottom: 24px;
}

.service-title {
    font-size: 26px;
    color: #fff;
    margin-bottom: 16px;
}

.service-text {
    font-size: 15px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
}

.service-list li {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    position: relative;
    padding-left: 24px;
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
}

.service-list li:last-child {
    border: none;
}

/* ============================================
   Process Section
   ============================================ */
.process-section {
    padding: 120px 0;
    background: var(--color-bg-alt);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 60px;
    right: 60px;
    height: 1px;
    background: var(--color-border);
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-family: var(--font-heading);
    font-size: 24px;
    background: var(--color-bg);
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    color: var(--color-secondary);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.process-step:hover .step-number {
    background: var(--color-secondary);
    color: #fff;
}

.step-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.step-content p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   About Section
   ============================================ */
.about-section {
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-image.main {
    width: 85%;
}

.about-image.main img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    border-radius: var(--radius);
}

.about-image.secondary {
    position: absolute;
    bottom: -40px;
    right: 0;
    width: 50%;
    box-shadow: var(--shadow-lg);
}

.about-image.secondary img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius);
}

.about-content .section-label {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 8px;
}

.about-role {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 32px;
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 42px;
    color: var(--color-secondary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials-section {
    padding: 120px 0;
    background: var(--color-bg-alt);
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-card {
    display: none;
    text-align: center;
    padding: 20px;
}

.testimonial-card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.testimonial-text {
    font-family: var(--font-heading);
    font-size: 28px;
    font-style: italic;
    line-height: 1.5;
    color: var(--color-text);
    margin-bottom: 32px;
}

.testimonial-text::before {
    content: '"';
    display: block;
    font-size: 80px;
    color: var(--color-secondary);
    line-height: 0.5;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 600;
}

.author-project {
    font-size: 14px;
    color: var(--color-text-muted);
}

.testimonials-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border);
    transition: var(--transition);
}

.nav-dot:hover,
.nav-dot.active {
    background: var(--color-secondary);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info .section-label,
.contact-info .section-title {
    text-align: left;
}

.contact-text {
    color: var(--color-text-light);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    font-size: 24px;
}

.contact-item strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--color-text-light);
    font-size: 15px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    font-size: 24px;
    opacity: 0.6;
    transition: var(--transition);
}

.social-links a:hover {
    opacity: 1;
}

.contact-form-wrapper {
    background: var(--color-bg-alt);
    padding: 48px;
    border-radius: var(--radius);
}

.contact-form .form-group {
    margin-bottom: 24px;
}

.contact-form label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-dark);
    color: #fff;
    padding: 60px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.footer-links a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ============================================
   Project Modal
   ============================================ */
.project-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.project-modal .modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.9);
}

.project-modal .modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--color-bg);
    border-radius: var(--radius);
    overflow: hidden;
    transform: scale(0.95);
    transition: var(--transition);
}

.project-modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border-radius: 50%;
    font-size: 20px;
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--color-primary);
    color: #fff;
}

.modal-body {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
}

.modal-gallery {
    height: 600px;
}

.modal-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    padding: 48px;
    overflow-y: auto;
}

.modal-info .project-category {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 12px;
    display: block;
}

.modal-info .project-title {
    font-size: 32px;
    margin-bottom: 8px;
}

.modal-info .project-location {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.project-description p {
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.project-details {
    display: flex;
    gap: 32px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.detail {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.detail-value {
    font-family: var(--font-heading);
    font-size: 24px;
    color: var(--color-secondary);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
    .container {
        padding: 0 32px;
    }

    .hero-content {
        padding: 120px 48px 80px;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-card.large {
        grid-column: span 1;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-timeline::before {
        display: none;
    }
}

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .hero-content {
        padding: 160px 40px 80px;
        max-width: 100%;
        text-align: center;
    }

    .hero-text {
        margin: 0 auto 40px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-image {
        display: none;
    }

    .scroll-indicator {
        left: 50%;
        transform: translateX(-50%);
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-images {
        max-width: 500px;
        margin: 0 auto;
    }

    .modal-body {
        grid-template-columns: 1fr;
    }

    .modal-gallery {
        height: 350px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .btn {
        padding: 14px 28px;
        font-size: 12px;
    }

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

    .project-image,
    .project-card.large .project-image {
        height: 300px;
    }

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

    .process-timeline {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about-stats {
        flex-wrap: wrap;
        gap: 32px;
    }

    .stat {
        flex: 1;
        min-width: 100px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }

    .project-modal .modal-content {
        width: 95%;
    }

    .modal-info {
        padding: 32px;
    }

    .project-filters {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 140px 20px 60px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .section-title {
        font-size: 28px;
    }

    .filter-btn {
        padding: 10px 20px;
        font-size: 12px;
    }

    .testimonial-text {
        font-size: 22px;
    }

    .contact-form-wrapper {
        padding: 32px 24px;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-card {
    opacity: 0;
    animation: revealUp 0.6s ease forwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }