/* ====================
   RESET & BASE
   ==================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-black: #151515;
    --color-white: #FFFFFF;
    --color-red: #B81725;
    --color-gray: #A0A0A0;
    --color-gray-light: #F5F5F5;
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Lato', sans-serif;
    --font-utility: 'Inter', sans-serif;
    --spacing-unit: 8px;
    --transition-speed: 0.3s;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ====================
   TYPOGRAPHY
   ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.3;
    color: var(--color-white);
    margin-bottom: var(--spacing-unit);
}

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

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

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-unit);
}

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

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

/* ====================
   NAVIGATION
   ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-black);
    border-bottom: 1px solid var(--color-red);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-white);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background-color: var(--color-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
}

.logo-text {
    letter-spacing: -0.5px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-white);
    transition: all var(--transition-speed);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray);
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a:hover,
.nav-menu a:focus {
    color: var(--color-white);
}

.nav-menu a.nav-active {
    color: var(--color-white);
}

.nav-menu a.nav-active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-red);
}

.nav-menu a.nav-cta {
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 3px;
}

.nav-menu a.nav-cta:hover {
    background-color: var(--color-white);
    color: var(--color-red);
}

/* ====================
   PAGE HEADER
   ==================== */
.page-header {
    background-color: var(--color-black);
    padding: 8rem 0 4rem;
    border-bottom: 1px solid var(--color-red);
}

.page-header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray);
}

/* ====================
   HERO SECTION
   ==================== */
.hero {
    background-color: var(--color-black);
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    padding: 4rem 0;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-gray);
}

.hero-tags span {
    color: var(--color-white);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

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

.project-visual {
    max-width: 100%;
    height: auto;
}

/* ====================
   BUTTONS
   ==================== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    border: 2px solid transparent;
    border-radius: 3px;
    transition: all var(--transition-speed);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-red);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--color-red);
    color: var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-link {
    color: var(--color-red);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-link:hover {
    color: var(--color-white);
}

.btn-link::after {
    content: '→';
    transition: transform var(--transition-speed);
}

.btn-link:hover::after {
    transform: translateX(4px);
}

.btn-whatsapp {
    background-color: #25D366;
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.btn-whatsapp:hover {
    background-color: #1ebe57;
    color: var(--color-white);
}

.btn-instagram {
    background-color: #E4405F;
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.btn-instagram:hover {
    background-color: #D63461;
    color: var(--color-white);
}

.btn-whatsapp svg,
.btn-instagram svg {
    width: 20px;
    height: 20px;
}

/* ====================
   SECTIONS
   ==================== */
.section {
    padding: 6rem 0;
}

.section-dark {
    background-color: var(--color-black);
}

.section-light {
    background-color: var(--color-gray-light);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--color-gray);
    font-size: 1.125rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ====================
   SERVICES GRID (ACCORDION)
   ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--color-gray-light);
    padding: 2rem;
    border-radius: 3px;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--color-black);
}

.service-card p {
    margin-bottom: 1.5rem;
    color: var(--color-black);
}

/* ====================
   SERVICES LIST
   ==================== */
.services-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.service-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.service-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border: 2px solid var(--color-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-item h3 {
    margin-bottom: 0.5rem;
}

.service-item p {
    color: var(--color-gray);
}

/* ====================
   PROJECTS GRID
   ==================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--color-black);
    border: 1px solid var(--color-gray);
    border-radius: 3px;
    overflow: hidden;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(184, 23, 37, 0.2);
    border-color: var(--color-red);
}

.project-image {
    position: relative;
    aspect-ratio: 4/3;
    background-color: var(--color-gray-light);
    overflow: hidden;
}

.project-visual {
    width: 100%;
    height: 100%;
}

.project-image svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-badge {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background-color: var(--color-black);
    color: var(--color-red);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 3px;
    border: 1px solid var(--color-red);
}

.project-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-white);
}

.project-category {
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-bottom: 1rem;
}

/* ====================
   FILTERS
   ==================== */
.filters-section {
    background-color: var(--color-gray-light);
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-red);
}

.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.filter-btn {
    background: none;
    border: 1px solid var(--color-gray);
    color: var(--color-black);
    padding: 0.5rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    border-radius: 3px;
}

.filter-btn:hover {
    border-color: var(--color-red);
    color: var(--color-red);
}

.filter-btn.active {
    background-color: var(--color-red);
    border-color: var(--color-red);
    color: var(--color-white);
}

/* ====================
   PROJECT DETAIL
   ==================== */
.project-detail {
    max-width: 900px;
    margin: 0 auto;
}

.project-detail-visual {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: var(--color-gray-light);
    border-radius: 3px;
    margin-bottom: 3rem;
}

.project-detail-visual svg {
    width: 100%;
    height: 100%;
}

.project-detail-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.project-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
    font-family: var(--font-body);
    color: var(--color-gray);
}

.project-detail-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-detail-section {
    margin-bottom: 3rem;
}

.project-detail-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-detail-section p {
    color: var(--color-gray);
}

.tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tool-item {
    background-color: var(--color-gray-light);
    padding: 0.5rem 1rem;
    border-radius: 3px;
    font-family: var(--font-body);
    font-size: 0.875rem;
}

/* ====================
   ABOUT
   ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-intro {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.about-intro strong {
    color: var(--color-white);
}

.about-visual {
    aspect-ratio: 1;
    background-color: var(--color-gray-light);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-placeholder {
    text-align: center;
    color: var(--color-gray);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.about-vision h2 {
    margin-bottom: 2rem;
}

.about-vision p {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

/* ====================
   CONTACT
   ==================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-intro p {
    margin-bottom: 2rem;
}

.contact-intro p:last-child {
    margin-bottom: 0;
}

.contact-signature {
    padding-top: 2rem;
    border-top: 1px solid var(--color-red);
}

.contact-signature p {
    color: var(--color-red);
    font-weight: 700;
}

.contact-form-container {
    background-color: var(--color-black);
    padding: 2rem;
    border-radius: 3px;
    border: 1px solid var(--color-gray);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 1px solid var(--color-gray);
    border-radius: 3px;
    background-color: var(--color-gray-light);
    color: var(--color-black);
    font-family: var(--font-body);
    font-size: 1rem;
}

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

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

.form-info {
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-gray);
    text-align: center;
}

.contact-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.contact-actions .btn {
    flex: 1;
    justify-content: center;
}

/* ====================
   ERROR 404
   ==================== */
.error-404 {
    text-align: center;
    padding: 4rem 2rem;
}

.error-code {
    font-family: var(--font-display);
    font-size: clamp(6rem, 15vw, 10rem);
    font-weight: 800;
    color: var(--color-red);
    line-height: 1;
    margin-bottom: 1rem;
}

.error-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.error-message {
    color: var(--color-gray);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* ====================
   FOOTER
   ==================== */
.footer {
    background-color: var(--color-black);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-red);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.footer-logo {
    width: 50px;
    height: 50px;
    background-color: var(--color-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.5rem;
}

.footer-info {
    flex: 1;
}

.footer-info h4 {
    margin-bottom: 0.5rem;
    color: var(--color-white);
}

.footer-info p {
    color: var(--color-gray);
}

.footer-links,
.footer-contact {
    margin-bottom: 3rem;
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a,
.footer-contact a {
    color: var(--color-gray);
    font-size: 0.9375rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-red);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray);
    text-align: center;
    color: var(--color-gray);
    font-size: 0.875rem;
}

/* ====================
   ANIMATIONS
   ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ====================
   RESPONSIVE
   ==================== */
@media (max-width: 1024px) {
    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        order: -1;
    }

    .project-detail {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--color-black);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 1rem;
        transition: left 0.3s ease;
    }

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

    .nav-menu a {
        display: block;
        width: 100%;
        padding: 1rem 0;
    }

    .nav-menu a.nav-cta {
        width: fit-content;
    }

    .hero {
        padding: 2rem 0;
        min-height: auto;
        padding-top: 4rem;
    }

    .hero-content {
        gap: 2rem;
    }

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

    .section {
        padding: 4rem 0;
    }

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

    .services-list {
        gap: 2rem;
    }

    .project-card {
        margin-bottom: 2rem;
    }

    .filters-container {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-btn {
        text-align: center;
    }

    .service-item {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-brand {
        flex-direction: column;
        text-align: center;
    }

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

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

/* Focus visible pour accessibilité */
*:focus-visible {
    outline: 2px solid var(--color-red);
    outline-offset: 2px;
}

/* Skip link pour accessibilité */
.skip-link {
    position: absolute;
    top: -100%;
    left: 2rem;
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    z-index: 9999;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}