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

/* Bootstrap overrides pour préserver le style premium */
body {
    font-family: var(--font-secondary) !important;
    font-weight: 300 !important;
    color: var(--color-black) !important;
    background: var(--color-white) !important;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary) !important;
    font-weight: 400 !important;
}

:root {
    --color-black: #000000;
    --color-gray-light: #f8f8f8;
    --color-gray-medium: #e8e8e8;
    --color-gray: #666666;
    --color-gray-dark: #333333;
    --color-white: #ffffff;
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Inter', sans-serif;
    --spacing-xs: 1rem;
    --spacing-sm: 2rem;
    --spacing-md: 4rem;
    --spacing-lg: 6rem;
    --spacing-xl: 8rem;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --border-radius: 8px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

/* Animations au scroll */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease-out forwards;
}

body {
    font-family: var(--font-secondary);
    font-weight: 300;
    color: var(--color-black);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

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

/* Container - Bootstrap override si nécessaire */
.container {
    max-width: 1200px;
}

/* SECTION 1 — HERO */
.hero {
    min-height: 100vh;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md);
    text-align: center;
    position: relative;
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-light) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-sm);
}

@media (max-width: 768px) {
    .hero {
        min-height: 90vh;
        padding: var(--spacing-sm) var(--spacing-xs);
    }
}

.hero-content {
    z-index: 2;
    animation: fadeInUp 1s ease-out;
    margin-top: var(--spacing-sm);
}

@media (max-width: 768px) {
    .hero-content {
        margin-top: var(--spacing-xs);
    }
}


.logo {
    height: 350px;
    width: auto;
    max-width: 800px;
    opacity: 0.95;
    display: block;
    margin-left: auto;
    margin-right: auto;
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.15));
    transition: transform 0.4s ease, filter 0.4s ease;
}

.logo:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

@media (max-width: 1200px) {
    .logo {
        height: 300px;
        max-width: 700px;
    }
}

@media (max-width: 992px) {
    .logo {
        height: 280px;
        max-width: 650px;
    }
}

@media (max-width: 768px) {
    .logo {
        height: 250px;
        max-width: 550px;
    }
}

@media (max-width: 576px) {
    .logo {
        height: 220px;
        max-width: 480px;
    }
}

@media (max-width: 400px) {
    .logo {
        height: 200px;
        max-width: 420px;
    }
}

.hero-title {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-family: var(--font-secondary);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 300;
    color: var(--color-gray);
    letter-spacing: 0.05em;
}


/* SECTIONS GÉNÉRALES */
.section {
    padding: var(--spacing-xl) var(--spacing-sm);
    min-height: 50vh;
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-md) var(--spacing-sm);
        min-height: auto;
    }
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    position: relative;
    display: inline-block;
    color: var(--color-black);
    text-align: center;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80px;
    height: 3px;
    background: var(--color-black);
    transform-origin: center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.section:hover .section-title::after,
.section-title:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.section-text {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 300;
    line-height: 1.9;
    max-width: 750px;
    color: var(--color-gray-dark);
    transition: transform 0.3s ease, color 0.3s ease;
    margin-bottom: var(--spacing-sm);
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section:hover .section-text {
    color: var(--color-black);
}

/* SECTION 2 — APPROCHE */
.approche {
    background: var(--color-white);
}

/* SECTION 3 — EXPERTISE */
.expertise {
    background: var(--color-gray-light);
}

.pourquoi {
    background: var(--color-white);
}

.expertise-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.expertise-list li {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 300;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    padding-left: 0;
    text-align: center;
}

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

.expertise-list li::before {
    content: '';
}

/* Expertise détaillée */
.expertise-detailed {
    max-width: 800px;
}

.expertise-item-detailed {
    padding: var(--spacing-md) var(--spacing-sm);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    background: transparent;
    border-left: 3px solid transparent;
}

.expertise-item-detailed:hover {
    transform: translateY(-6px) translateX(4px);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.8);
    border-left-color: var(--color-black);
}

.expertise-item-detailed:last-child {
    border-bottom: none;
}

.expertise-item-title {
    font-family: var(--font-primary);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.expertise-item-description {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: 300;
    line-height: 1.85;
    color: var(--color-gray-dark);
    transition: color 0.3s ease;
}

.expertise-item-detailed:hover .expertise-item-description {
    color: var(--color-black);
}

/* Pourquoi nous choisir */
.why-us-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(0, 0, 0, 0.05);
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

@media (min-width: 768px) {
    .why-us-item:hover {
        transform: translateX(8px) translateY(-4px);
        box-shadow: var(--shadow-md);
        background: rgba(255, 255, 255, 0.9);
        border-color: rgba(0, 0, 0, 0.1);
    }
}

.why-us-number {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    color: var(--color-gray-medium);
    line-height: 1;
    min-width: 60px;
    max-width: 70px;
    flex-shrink: 0;
    transition: var(--transition);
    letter-spacing: -0.05em;
}

.why-us-item:hover .why-us-number {
    transform: scale(1.15);
    color: var(--color-black);
}

.why-us-title {
    font-family: var(--font-primary);
    font-size: clamp(1.375rem, 2.5vw, 1.75rem);
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--color-black);
    letter-spacing: -0.02em;
    flex: 1;
    min-width: 0;
}

.why-us-description {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-black);
    flex: 1;
    min-width: 0;
}

.why-us-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.commitment-item {
    text-align: center;
    padding: var(--spacing-md) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

@media (min-width: 768px) {
    .commitment-item:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-sm);
    }
}

.commitment-item h4 {
    font-family: var(--font-secondary);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: 300;
    color: var(--color-black);
    margin-top: var(--spacing-xs);
    transition: color 0.3s ease;
}

.commitment-item:hover h4 {
    color: var(--color-black);
}

/* SECTION 4 — PROJETS */
.projets {
    background: var(--color-white);
}

/* Projets grid - maintenant géré par Bootstrap */

.projet-item {
    aspect-ratio: 4 / 3;
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    min-height: 250px;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    perspective: 1000px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    cursor: pointer;
}

.projet-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.projet-item:hover .projet-overlay {
    opacity: 1;
}

.projet-zoom-icon {
    font-size: 2.5rem;
    color: var(--color-white);
    transform: scale(0.8);
    transition: var(--transition);
}

.projet-item:hover .projet-zoom-icon {
    transform: scale(1);
}

@media (min-width: 768px) {
    .projet-item:hover {
        transform: translateY(-8px) rotateX(2deg);
        box-shadow: var(--shadow-lg);
    }
}

@media (max-width: 767px) {
    .projet-item:active {
        transform: scale(0.98);
    }
}

.projet-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.9;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    transform: scale(1);
    position: relative;
    z-index: 0;
}

.projet-item:hover .projet-image {
    transform: scale(1.05);
    opacity: 0.8;
}

@media (max-width: 576px) {
    .projet-item {
        min-height: 200px;
    }
}


/* SECTION 5 — CONTACT */
.contact {
    background: var(--color-gray-light);
    min-height: 60vh;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-info {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 300;
    color: var(--color-black);
    line-height: 1.8;
}

.contact-email-link {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--color-black);
    text-decoration: none;
    font-weight: 400;
    transition: opacity 0.3s ease;
    display: inline-block;
}

.contact-email-link:hover {
    opacity: 0.6;
}

.contact-info a {
    color: var(--color-black);
    text-decoration: none;
    font-weight: 400;
    transition: opacity 0.3s ease;
}

.contact-info a:hover {
    opacity: 0.6;
}

.contact-icon {
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 1.2em;
}

.contact-button {
    display: inline-block;
    padding: 1.125rem 3rem;
    border: 2px solid var(--color-black);
    color: var(--color-black);
    text-decoration: none;
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    transition: var(--transition);
    margin-top: var(--spacing-sm);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    text-transform: uppercase;
    border-radius: var(--border-radius);
}

.contact-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--color-black);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.contact-button:hover {
    background: var(--color-black);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-button:hover::before {
    width: 300px;
    height: 300px;
}

/* PAGE SEO — SAINT-MAUR */
.page-header {
    padding: var(--spacing-sm) var(--spacing-sm);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

@media (max-width: 768px) {
    .page-header {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

.header-logo-img {
    height: 50px;
    width: auto;
    max-width: 150px;
}

@media (max-width: 768px) {
    .header-logo-img {
        height: 40px;
        max-width: 120px;
    }
}

.seo-page {
    padding: var(--spacing-xl) var(--spacing-sm);
    min-height: 70vh;
}

@media (max-width: 768px) {
    .seo-page {
        padding: var(--spacing-md) var(--spacing-sm);
    }
}

.seo-h1 {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    letter-spacing: -0.02em;
    max-width: 900px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.seo-content {
    max-width: 800px;
}

.seo-intro {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.seo-section {
    margin-bottom: var(--spacing-lg);
}

.seo-h2 {
    font-family: var(--font-primary);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    text-align: center;
}

.seo-section p {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.seo-list {
    list-style: none;
    padding-left: 0;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.seo-list li {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: 300;
    line-height: 1.8;
    padding: var(--spacing-xs) 0;
    padding-left: 0;
    position: relative;
}

.seo-list li::before {
    content: '';
}

.seo-cta {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.seo-cta-text {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.page-footer {
    padding: var(--spacing-md) var(--spacing-sm);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer-text {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--color-gray);
    text-align: center;
    margin: 0 auto;
}

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

.footer-text a:hover {
    opacity: 0.6;
}

/* Responsive - Ajustements spécifiques */
@media (max-width: 576px) {
    .hero-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }
    
    .section-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }
    
    .why-us-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xs);
    }
    
    .why-us-number {
        margin: 0 auto;
    }
    
    .expertise-item-detailed {
        padding: var(--spacing-xs);
    }
    
    .contact-button {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-md) var(--spacing-xs);
    }
    
    .hero {
        padding: var(--spacing-sm) var(--spacing-xs);
    }
    
    .projet-item {
        min-height: 200px;
    }
    
    .why-us-item {
        padding: var(--spacing-xs);
    }
}

/* Performance & Optimisations */
img {
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
}

/* WhatsApp Widget */
.whatsapp-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: var(--transition);
    text-decoration: none;
    color: var(--color-white);
}

.whatsapp-widget:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
    background: #20BA5A;
}

.whatsapp-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.whatsapp-icon svg {
    width: 100%;
    height: 100%;
    color: var(--color-white);
}

.whatsapp-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #25D366;
    animation: pulse 2s infinite;
    z-index: 1;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .whatsapp-widget {
        width: 56px;
        height: 56px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-icon {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 576px) {
    .whatsapp-widget {
        width: 52px;
        height: 52px;
        bottom: 15px;
        right: 15px;
    }
    
    .whatsapp-icon {
        width: 26px;
        height: 26px;
    }
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
    padding: 20px;
}

.lightbox-image {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease-out;
    user-select: none;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    font-size: 3rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10001;
    font-weight: 300;
    line-height: 1;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 30px;
}

.lightbox-next {
    right: 30px;
}

.lightbox-counter {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-size: 0.9rem;
    font-weight: 300;
    background: rgba(0, 0, 0, 0.5);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    letter-spacing: 0.05em;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--color-white);
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
    z-index: 10000;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-size: 1.125rem;
    font-weight: 300;
    text-align: center;
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    max-width: 80%;
}

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--color-black);
    z-index: 9998;
    transition: width 0.1s ease-out;
}

@media (max-width: 768px) {
    .lightbox-close {
        top: 20px;
        right: 20px;
        font-size: 2.5rem;
        width: 40px;
        height: 40px;
    }
    
    .lightbox-nav {
        width: 50px;
        height: 50px;
        font-size: 2.5rem;
    }
    
    .lightbox-prev {
        left: 15px;
    }
    
    .lightbox-next {
        right: 15px;
    }
    
    .lightbox-caption {
        bottom: 20px;
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
    
    .lightbox-image {
        max-width: 95%;
        max-height: 85vh;
    }
}

/* Print styles */
@media print {
    .projets-grid {
        display: none;
    }
}