/* ============================================
   INNOV-ENERGIES - Feuille de style principale
   Bleu ciel dominant + Vert & Orange accents
   ============================================ */

:root {
  /* Couleur DOMINANTE : Bleu ciel */
  --primary: #2196F3;
  --primary-dark: #1565C0;
  --primary-light: #64B5F6;

  /* Couleur secondaire : Vert */
  --secondary: #4CAF50;
  --secondary-dark: #2E7D32;

  /* Couleur accent : Orange soleil */
  --accent: #FF9800;
  --accent-light: #FFB74D;

  /* Arrière-plans et neutres */
  --bg-warm: #F0F7FF; /* Bleu très clair */
  --text-main: #0D1B2A; /* Bleu nuit profond */
  
  /* Variables fonctionnelles */
  --white: #ffffff;
  --text-gray: #5a6377;
  --bg-light: #FAFCFF;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);
  --radius: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========== HEADER & NAVIGATION ========== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--primary-light);
    transition: var(--transition);
}

#header.scrolled {
    box-shadow: 0 4px 30px rgba(33, 150, 243, 0.15);
}

.navbar {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-main);
    position: relative;
    transition: var(--transition);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

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

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

.btn-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-nav:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.5);
}

.btn-nav::after {
    display: none !important;
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger .bar {
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* ========== HERO SECTION ========== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 60px;
    position: relative;
    background: linear-gradient(160deg, #FFFFFF 0%, #E3F2FD 40%, #BBDEFB 100%);
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    background: var(--primary);
    border-radius: 50%;
    animation: floatParticle 6s infinite ease-in-out;
    opacity: 0.12;
}

@keyframes floatParticle {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(33, 150, 243, 0.1);
    color: var(--primary-dark);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 20px;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 900;
    line-height: 1.15;
    color: var(--text-main);
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 32px;
    max-width: 500px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.35);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 14px 35px rgba(33, 150, 243, 0.5);
}

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

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

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

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.9rem;
    background: rgba(33, 150, 243, 0.08);
    padding: 8px 14px;
    border-radius: 30px;
}

.stat-item i {
    font-size: 1.2rem;
    color: var(--primary);
}

/* Carousel */
.hero-carousel {
    position: relative;
}

.carousel-container {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(33, 150, 243, 0.2);
    aspect-ratio: 4/3;
    border: 3px solid var(--primary-light);
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.carousel-slide.active {
    opacity: 1;
}

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

.carousel-caption {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(13, 27, 42, 0.85);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    backdrop-filter: blur(5px);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #BBDEFB;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary);
    transform: scale(1.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    color: var(--primary);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
    z-index: 2;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========== SECTION HEADERS ========== */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 10px;
}

.section-subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
}

/* ========== SOLUTIONS SECTION ========== */
.solutions-section {
    padding: 80px 0;
    background: var(--white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 35px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-top: 4px solid var(--primary-light);
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(33, 150, 243, 0.2);
    border-top: 4px solid var(--primary);
}

.solution-icon {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.15), rgba(76, 175, 80, 0.15));
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
    color: var(--primary);
}

.solution-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.solution-intro {
    color: var(--text-gray);
    margin-bottom: 10px;
}

.solution-list {
    list-style: none;
    margin-bottom: 20px;
}

.solution-list li {
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.solution-list li i {
    color: var(--secondary);
    font-size: 0.9rem;
}

.solution-image {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    margin-top: 10px;
}

.solution-image img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 12px;
    transition: var(--transition);
}

.solution-card:hover .solution-image img {
    transform: scale(1.05);
}

.image-tag {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(13, 27, 42, 0.8);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.75rem;
    backdrop-filter: blur(4px);
}

.energy-glow {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transition: var(--transition);
}

.solution-card:hover .energy-glow {
    width: 160px;
    height: 160px;
    top: -70px;
    right: -70px;
}

/* ========== SERVICES & POURQUOI SECTION ========== */
.services-section {
    padding: 80px 0;
    background: #F0F7FF;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.block-title {
    font-size: 1.6rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-dark);
}

.block-title i {
    color: var(--accent);
}

.service-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.service-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--white);
    padding: 20px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-light);
}

.service-item:hover {
    transform: translateX(8px);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.2);
    border-left: 4px solid var(--primary);
}

.service-number {
    font-size: 1.8rem;
    font-weight: 900;
    color: rgba(33, 150, 243, 0.2);
    min-width: 40px;
}

.service-content h4 {
    color: var(--text-main);
    margin-bottom: 4px;
    font-size: 1rem;
}

.service-content p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.pourquoi-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.pourquoi-item {
    display: flex;
    gap: 16px;
    align-items: center;
    background: var(--white);
    padding: 18px 20px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-right: 4px solid var(--secondary);
}

.pourquoi-item:hover {
    transform: translateX(-8px);
    box-shadow: 0 15px 40px rgba(76, 175, 80, 0.2);
    border-right: 4px solid var(--secondary-dark);
}

.pourquoi-item i {
    font-size: 1.4rem;
    color: var(--secondary);
    width: 40px;
    text-align: center;
}

.pourquoi-item h4 {
    color: var(--text-main);
    font-size: 0.95rem;
}

.pourquoi-item p {
    color: var(--text-gray);
    font-size: 0.85rem;
}

/* ========== PARTENAIRES SECTION ========== */
.partenaires-section {
    padding: 80px 0;
    background: var(--white);
}

.partenaires-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.partenaire-card {
    text-align: center;
    background: #FAFCFF;
    border-radius: var(--radius);
    padding: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 2px solid var(--primary-light);
}

.partenaire-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(33, 150, 243, 0.2);
    border-color: var(--primary);
}

.partenaire-image {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 14px;
}

.partenaire-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    cursor: zoom-in;
}

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

.partenaire-card h4 {
    font-size: 0.95rem;
    color: var(--primary-dark);
}

.partenaire-card p {
    font-size: 0.8rem;
    color: var(--text-gray);
}

/* ========== CONTACT SECTION ========== */
.contact-section {
    padding: 80px 0;
    background: #F0F7FF;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 3px solid var(--primary-light);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(33, 150, 243, 0.2);
    border-top: 3px solid var(--primary);
}

.contact-icon {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.15), rgba(76, 175, 80, 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.3rem;
    color: var(--primary);
}

.contact-card h4 {
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.contact-card a,
.contact-card p {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.9rem;
}

.contact-card a:hover {
    color: var(--primary);
}

.gerant-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: 10px;
    border: 2px solid var(--primary-light);
}

.gerant-image {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 3px solid var(--accent);
}

.gerant-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
}

.gerant-card h4 {
    color: var(--text-main);
    font-size: 1rem;
}

.gerant-card p {
    color: var(--text-gray);
    font-size: 0.85rem;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 2px solid var(--primary-light);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-dark);
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid #E3F2FD;
    border-radius: 12px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
    resize: vertical;
    background: #FAFCFF;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.1);
    background: var(--white);
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1rem;
    margin-top: 5px;
    background: var(--primary);
    color: var(--white);
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 14px 35px rgba(33, 150, 243, 0.5);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 40px 0 20px;
    border-top: 4px solid var(--accent);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-logo .logo-text {
    color: var(--white);
    font-size: 1.3rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.3rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--accent-light);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========== LIGHTBOX (Agrandissement des photos) ========== */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 27, 42, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    cursor: zoom-out;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-image {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(33, 150, 243, 0.3);
    transform: scale(0.8);
    transition: transform 0.3s ease;
    cursor: default;
    border: 3px solid var(--primary-light);
}

.lightbox-overlay.active .lightbox-image {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 25px;
    right: 35px;
    font-size: 2.5rem;
    color: white;
    cursor: pointer;
    z-index: 10000;
    transition: transform 0.3s ease;
    line-height: 1;
}

.lightbox-close:hover {
    transform: rotate(90deg) scale(1.2);
    color: var(--accent-light);
}

.lightbox-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    background: rgba(13, 27, 42, 0.8);
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    backdrop-filter: blur(5px);
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 75px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        padding: 30px;
        gap: 24px;
        transition: var(--transition);
        box-shadow: var(--shadow);
        border-bottom: 3px solid var(--primary);
    }
    .nav-menu.active {
        left: 0;
    }
    .hero-text h1 {
        font-size: 2.2rem;
    }
    .hero-stats {
        gap: 12px;
    }
    .stat-item {
        font-size: 0.8rem;
    }
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    .partenaires-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    .partenaires-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .contact-form-wrapper {
        padding: 20px;
    }
}




/* ========== BOUTON RETOUR EN HAUT ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    z-index: 9998;
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(33, 150, 243, 0.6);
    animation: pulse 0.6s ease;
}

.back-to-top:active {
    transform: translateY(-2px) scale(0.95);
}

@keyframes pulse {
    0% { box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4); }
    50% { box-shadow: 0 0 0 20px rgba(33, 150, 243, 0); }
    100% { box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4); }
}