/* ============================
   ENERGYLY - Style Principal
   Cabinet de Stratégie & Ingénierie
   ============================ */

:root {
    --primary: #c8913a;
    --primary-dark: #a67520;
    --primary-light: #daa854;
    --secondary: #1e3a5f;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --bg-light: #f8fafc;
    --bg-warm: #faf8f5;
    --border: #e2e8f0;
    --gradient: linear-gradient(135deg, #c8913a 0%, #a67520 100%);
    --gradient-dark: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    --shadow: 0 10px 40px rgba(0,0,0,0.06);
    --shadow-hover: 0 20px 60px rgba(0,0,0,0.12);
    --radius: 16px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================
   Navigation
   ============================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

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

.logo {
    text-decoration: none;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo-energy {
    color: var(--white);
}

.logo-ly {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.burger span {
    width: 28px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================
   Hero Section
   ============================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(200, 145, 58, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(166, 117, 32, 0.08) 0%, transparent 50%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-particles .particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(200, 145, 58, 0.3);
    border-radius: 50%;
    animation: float-particle linear infinite;
}

@keyframes float-particle {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
}

.hero-badge {
    display: inline-block;
    background: rgba(200, 145, 58, 0.12);
    border: 1px solid rgba(200, 145, 58, 0.25);
    color: var(--primary-light);
    padding: 8px 28px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 28px;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInDown 0.8s ease;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.65);
    max-width: 620px;
    margin: 0 auto 40px;
    font-weight: 300;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 8px 30px rgba(200, 145, 58, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(200, 145, 58, 0.35);
}

.btn-outline {
    border: 2px solid rgba(255,255,255,0.25);
    color: var(--white);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(200, 145, 58, 0.08);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: fadeInUp 1s ease 1s both;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 10px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll-down 1.5s ease infinite;
}

@keyframes scroll-down {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(14px); }
}

/* ============================
   Sections Generales
   ============================ */

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: var(--dark);
}

/* ============================
   Intro Section
   ============================ */

.intro {
    background: var(--bg-warm);
    padding: 80px 0;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
}

.intro-lead {
    font-size: 1.15rem;
    color: var(--dark);
    line-height: 1.9;
    margin-bottom: 20px;
    font-weight: 400;
}

.intro-text {
    font-size: 1rem;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 24px;
}

.intro-accent {
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.intro-accent i {
    font-size: 0.8rem;
}

.axes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    max-width: 960px;
    margin: 0 auto;
}

.axe-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.axe-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.axe-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(200, 145, 58, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
    margin: 0 auto 16px;
}

.axe-card h3 {
    font-size: 1.05rem;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 600;
}

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

/* ============================
   About Section
   ============================ */

.about {
    background: var(--white);
}

.about-content {
    max-width: 780px;
    margin: 0 auto;
}

.about-text-block h3 {
    font-size: 1.4rem;
    color: var(--dark);
    margin-bottom: 20px;
    font-weight: 600;
}

.about-text-block > p {
    font-size: 1rem;
    color: var(--text);
    line-height: 1.9;
    margin-bottom: 28px;
}

.about-missions {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius);
    margin-bottom: 28px;
}

.missions-intro {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

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

.mission-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.6;
}

.mission-list li:last-child {
    margin-bottom: 0;
}

.mission-list li i {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
}

.about-independence {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    border-radius: var(--radius);
    background: rgba(200, 145, 58, 0.06);
    border-left: 4px solid var(--primary);
}

.about-independence i {
    font-size: 1.5rem;
    color: var(--primary);
    flex-shrink: 0;
}

.about-independence p {
    font-size: 0.95rem;
    color: var(--text);
}

/* ============================
   Services / Domaines Section
   ============================ */

.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

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

.service-number {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(200, 145, 58, 0.07);
    line-height: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(200, 145, 58, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.15rem;
    color: var(--dark);
    margin-bottom: 16px;
    font-weight: 600;
}

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

.service-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 0.9rem;
    margin-bottom: 10px;
    line-height: 1.5;
}

.service-list li:last-child {
    margin-bottom: 0;
}

.service-list li i {
    color: var(--primary);
    font-size: 0.65rem;
    flex-shrink: 0;
}

/* ============================
   Methode Section
   ============================ */

.methode {
    background: var(--white);
}

.methode-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.methode-step {
    flex: 1;
    min-width: 200px;
    max-width: 240px;
    text-align: center;
    padding: 24px 16px;
}

.step-number {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 auto 16px;
    box-shadow: 0 4px 16px rgba(200, 145, 58, 0.25);
}

.methode-step h3 {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.methode-step p {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
}

.methode-connector {
    display: flex;
    align-items: center;
    padding-top: 40px;
    color: var(--primary);
    font-size: 0.9rem;
    opacity: 0.5;
}

.methode-note {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 28px 32px;
    background: var(--bg-warm);
    border-radius: var(--radius);
    font-size: 1rem;
    color: var(--dark);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.methode-note i {
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ============================
   Missions Section
   ============================ */

.missions {
    background: var(--bg-light);
}

.missions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.mission-card {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.mission-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.mission-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(200, 145, 58, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary);
    margin: 0 auto 16px;
}

.mission-card h3 {
    font-size: 0.95rem;
    color: var(--dark);
    font-weight: 600;
    line-height: 1.5;
}

.missions-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    font-style: italic;
}

/* ============================
   Partners Section
   ============================ */

.partners {
    background: var(--white);
}

.partners-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.partners-intro {
    font-size: 1.05rem;
    color: var(--dark);
    margin-bottom: 36px;
    font-weight: 500;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 36px;
}

.partner-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.partner-item:hover {
    border-color: var(--primary);
}

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

.partner-item span {
    font-size: 0.9rem;
    color: var(--dark);
    font-weight: 500;
}

.partners-note {
    color: var(--text-light);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.partners-note i {
    color: var(--primary);
}

/* ============================
   Info Banner
   ============================ */

.info-banner {
    background: var(--bg-warm);
    padding: 60px 0;
}

.info-content {
    display: flex;
    align-items: center;
    gap: 32px;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    border: 2px dashed var(--primary);
    box-shadow: var(--shadow);
}

.info-icon {
    font-size: 3rem;
    color: var(--primary);
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 1.3rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.info-text p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================
   Contact Section
   ============================ */

.contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}

.contact-intro {
    color: var(--text);
    font-size: 0.95rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 28px;
}

.contact-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(200, 145, 58, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 4px;
}

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

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

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    transition: var(--transition);
    background: var(--bg-light);
    color: var(--dark);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(200, 145, 58, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ============================
   Footer
   ============================ */

.footer {
    background: var(--dark);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo p {
    color: rgba(255,255,255,0.45);
    margin-top: 12px;
    font-size: 0.8rem;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    color: rgba(255,255,255,0.25);
    font-size: 0.75rem;
}

/* ============================
   Language Switcher
   ============================ */

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 24px;
}

.lang-sep {
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.35);
    color: rgba(255,255,255,0.6);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    font-family: inherit;
}

.lang-btn:hover {
    color: var(--white);
    border-color: var(--primary);
}

.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ============================
   Positionnement Section
   ============================ */

.positionnement {
    background: var(--dark);
}

.pos-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.pos-text {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 40px;
}

.pos-partners {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.pos-partner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--white);
}

.pos-partner i {
    font-size: 2rem;
    color: var(--primary);
}

.pos-partner span {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ============================
   Méthode 3-grid override
   ============================ */

.methode-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.methode-intro {
    text-align: center;
    color: rgba(255,255,255,0.7);
    font-size: 1rem;
    margin-bottom: 40px;
}

.methode-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

@media (max-width: 900px) {
    .methode-grid-3 {
        grid-template-columns: 1fr;
    }
    .lang-switcher {
        margin-left: 12px;
    }
}



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

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

.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: 768px) {
    .burger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        transition: var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

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

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

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

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .methode-grid {
        flex-direction: column;
        align-items: center;
    }

    .methode-connector {
        transform: rotate(90deg);
        padding-top: 0;
        padding: 8px 0;
    }

    .methode-step {
        max-width: 300px;
    }

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

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

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

    .about-independence {
        flex-direction: column;
        text-align: center;
    }

    .info-content {
        flex-direction: column;
        text-align: center;
    }
}