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

:root {
    --primary-color: #00B4D8;
    --secondary-color: #0077B6;
    --accent-color: #90E0EF;
    --dark-color: #03045E;
    --light-color: #CAF0F8;
    --white: #FFFFFF;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 15px 40px rgba(0, 180, 216, 0.3);
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 10;
    transition: transform 0.35s ease, opacity 0.35s ease, box-shadow 0.3s ease;
}

.header--scrolled-away {
    transform: translateY(-30px);
    opacity: 0;
    box-shadow: none;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    height: 60px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.phone-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    transition: all 0.3s ease;
}

.phone-link:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #00B4D8 0%, #0077B6 100%);
    background-image: url('assets/realisation-1.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    animation: zoomIn 20s ease infinite;
}

@keyframes zoomIn {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.8) 0%, rgba(0, 119, 182, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-5px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(15px); }
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-out 0.3s both;
}

.animate-bounce-in {
    animation: bounceIn 1s ease-out 0.6s both;
}

.animate-bounce-in-delay {
    animation: bounceIn 1s ease-out 0.9s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(50px);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1) translateY(0);
    }
}

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--white);
    padding: 1.2rem 1.2rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.service-image {
    width: 100%;
    height: 210px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 1rem;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.2) rotate(5deg);
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.btn-service {
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-service::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-service:hover::after {
    width: 300px;
    height: 300px;
}

.btn-service:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0, 180, 216, 0.4);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--accent-color) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    text-align: center;
}

.feature-item {
    padding: 2rem;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
}

.feature-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    animation: countUp 2s ease-out;
}

.feature-text {
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 600;
}

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

/* Réalisations Section */
.realisations {
    padding: 100px 0;
    background: var(--white);
}

.slideshow-container {
    position: relative;
    max-width: 1000px;
    margin: 3rem auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.slideshow-wrapper {
    position: relative;
    width: 100%;
    height: 600px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
    transform: scale(1.1);
}

.slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 1;
}

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

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: var(--white);
    padding: 2rem;
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
}

.slide-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.slide-btn:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow);
}

.slide-btn.prev {
    left: 20px;
}

.slide-btn.next {
    right: 20px;
}

.dots-container {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active,
.dot:hover {
    background: var(--white);
    transform: scale(1.3);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 4rem;
}

.gallery-item {
    position: relative;
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.gallery-item:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-hover);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 180, 216, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.gallery-title {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 600;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-title {
    transform: translateY(0);
}
.realisations-note {
    margin-top: 12px;
    font-size: 0.85rem;
    color: #777;
    text-align: center;
    font-style: italic;
}

/* Ripple effect (clic sur galerie) */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 2000;
}

.lightbox.open {
    display: block;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(6px);
    animation: lightboxFadeIn 200ms ease-out;
}

.lightbox-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.96);
    width: min(1100px, calc(100vw - 40px));
    max-height: calc(100vh - 40px);
    background: var(--white);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
    animation: lightboxPopIn 240ms ease-out forwards;
}

.lightbox-img {
    width: 100%;
    height: min(70vh, 700px);
    object-fit: cover;
    display: block;
}

.lightbox-caption {
    padding: 1rem 1.25rem 1.25rem;
    color: var(--text-dark);
    font-weight: 600;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.85), var(--white));
}

.lightbox-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.95);
    color: var(--dark-color);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lightbox-close:hover {
    transform: scale(1.06);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
}

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

@keyframes lightboxPopIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.96); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--white) 100%);
}

.contact-cta {
    max-width: 700px;
    margin: 3rem auto 0;
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}

.btn-mail {
    min-width: 280px;
}

.contact-form {
    max-width: 700px;
    margin: 3rem auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 1.2rem;
    margin-top: 1rem;
    position: relative;
}

.btn-submit .btn-loader {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-submit.loading .btn-loader {
    display: block;
}

.btn-submit.loading span {
    opacity: 0;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 2rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-icon {
    font-size: 2.5rem;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.contact-item p {
    color: var(--text-light);
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .logo {
        height: 48px;
    }

    .hero {
        height: auto;
        padding: 120px 20px 80px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .service-card {
        padding: 2rem 1.6rem;
    }

    .slideshow-wrapper {
        height: 320px;
    }

    .contact-form {
        padding: 2rem;
    }

    .contact-cta {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 110px 16px 60px;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.9rem 1.4rem;
        font-size: 1rem;
    }

    .slideshow-wrapper {
        height: 260px;
    }

    .slide-caption {
        font-size: 1rem;
        padding: 1.2rem;
    }

    .gallery-item {
        height: 220px;
    }

    .contact-form {
        padding: 1.5rem 1.2rem;
        margin: 2.5rem auto;
    }

    .contact-cta {
        padding: 1.5rem 1.2rem;
        margin: 2.5rem auto 0;
    }

    .contact-item {
        padding: 1.5rem 1.3rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s ease-in-out infinite;
}