:root {
    --earth-dark: #2d3a2e;
    --earth-mid: #4a5d4e;
    --earth-light: #7a9177;
    --green-primary: #5d8a66;
    --green-accent: #88c999;
    --clay: #c9a882;
    --sand: #e8dcc4;
    --concrete: #d4d4d4;
    --charcoal: #1a1a1a;
    --white: #fafaf8;
    --gradient-earth: linear-gradient(135deg, #5d8a66 0%, #7a9177 100%);
    --gradient-hero: linear-gradient(165deg, #2d3a2e 0%, #4a5d4e 50%, #5d8a66 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--white);
    color: var(--charcoal);
    line-height: 1.6;
    overflow-x: hidden;
}

/* NAVIGATION */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(93, 138, 102, 0.1);
    z-index: 1000;
    animation: slideDown 0.6s ease-out;
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-elle {
    color: var(--earth-dark);
    font-family: 'Archivo Black', sans-serif;
}

.logo-energie {
    color: var(--green-primary);
    font-family: 'Archivo Black', sans-serif;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--earth-dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

.btn-cta-nav {
    background: var(--green-primary);
    color: white !important;
    padding: 0.6rem 1.5rem;
    border-radius: 6px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-cta-nav:hover {
    background: var(--earth-dark);
    transform: translateY(-2px);
}

/* HERO */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 8rem 2rem 4rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    opacity: 1;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 80 80"><rect width="1" height="1" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 80px 80px;
}

.hero-content {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    z-index: 10;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--green-accent);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1.1;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-accent {
    background: linear-gradient(135deg, var(--green-accent), var(--clay));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-bottom: 3rem;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease-out 1s both;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 1.2s both;
}

.stat {
    color: white;
}

.stat-number {
    font-family: 'Archivo Black', sans-serif;
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, white, var(--green-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    position: absolute;
    right: -10%;
    top: 10%;
    width: 60%;
    height: 80%;
    pointer-events: none;
    opacity: 0.15;
}

.visual-circle {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 40s linear infinite;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.visual-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* SECTIONS */
.section {
    padding: 6rem 2rem;
}

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
}

.section-header.center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    color: var(--green-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.2;
    color: var(--earth-dark);
    margin-bottom: 1.5rem;
}

.section-header h2 strong {
    color: var(--green-primary);
}

.section-intro {
    font-size: 1.2rem;
    color: var(--earth-mid);
    max-width: 700px;
    line-height: 1.8;
}

/* CEE SECTION */
.section-cee {
    background: linear-gradient(180deg, white 0%, var(--sand) 100%);
}

.cee-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(93, 138, 102, 0.1);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(93, 138, 102, 0.15);
    border-color: var(--green-primary);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.4rem;
    color: var(--earth-dark);
    margin-bottom: 1rem;
}

.benefit-card p {
    color: var(--earth-mid);
    line-height: 1.7;
}

/* SOLUTIONS */
.section-solutions {
    background: var(--earth-dark);
    position: relative;
}

.section-solutions::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 100px 100px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
    position: relative;
}

.solution-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
}

.solution-card:hover {
    transform: scale(1.03);
    border-color: var(--green-accent);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.solution-visual {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.isolation-bg {
    background: linear-gradient(135deg, #7a9177 0%, #5d8a66 100%);
}

.pac-bg {
    background: linear-gradient(135deg, #5d8a66 0%, #4a5d4e 100%);
}

.solar-bg {
    background: linear-gradient(135deg, #c9a882 0%, #7a9177 100%);
}

.solution-content {
    padding: 2.5rem;
    color: white;
}

.solution-content h3 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--green-accent);
}

.solution-desc {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.solution-features {
    list-style: none;
    margin-bottom: 2rem;
}

.solution-features li {
    padding: 0.5rem 0;
    font-size: 0.95rem;
    opacity: 0.85;
}

.solution-prime {
    background: rgba(136, 201, 153, 0.2);
    color: var(--green-accent);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    border: 1px solid rgba(136, 201, 153, 0.3);
}

/* PROCESS */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-earth);
    color: white;
    font-family: 'Archivo Black', sans-serif;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.process-step h4 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.3rem;
    color: var(--earth-dark);
    margin-bottom: 0.8rem;
}

.process-step p {
    color: var(--earth-mid);
}

/* CONTACT */
.section-contact {
    background: linear-gradient(180deg, white 0%, var(--sand) 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--earth-dark);
    margin-bottom: 1.5rem;
}

.contact-subtitle {
    font-size: 1.2rem;
    color: var(--earth-mid);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.contact-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-feature {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

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

.contact-feature strong {
    display: block;
    font-size: 1.1rem;
    color: var(--earth-dark);
    margin-bottom: 0.3rem;
}

.contact-feature p {
    color: var(--earth-mid);
    font-size: 0.95rem;
}

.contact-form-wrapper {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group.full {
    grid-column: 1 / -1;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem 1.2rem;
    border: 2px solid var(--concrete);
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

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

.form-group label {
    position: absolute;
    left: 1.2rem;
    top: 1rem;
    color: #999;
    pointer-events: none;
    transition: all 0.3s ease;
    background: white;
    padding: 0 0.3rem;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group select:focus + label,
.form-group select:not([value=""]) + label {
    top: -0.6rem;
    font-size: 0.85rem;
    color: var(--green-primary);
}

.btn-submit {
    grid-column: 1 / -1;
    background: var(--green-primary);
    color: white;
    padding: 1.2rem 2rem;
    border: none;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background: var(--earth-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(93, 138, 102, 0.3);
}

.form-privacy {
    grid-column: 1 / -1;
    text-align: center;
    font-size: 0.85rem;
    color: #999;
    margin-top: 0.5rem;
}

/* FOOTER */
.footer {
    background: var(--earth-dark);
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto 3rem;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
}

.footer-logo {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.footer-col p {
    opacity: 0.8;
    line-height: 1.7;
}

.footer-col h4 {
    font-family: 'Archivo Black', sans-serif;
    margin-bottom: 1.5rem;
    color: var(--green-accent);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--green-accent);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .nav-links {
        gap: 1.5rem;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links a:not(.btn-cta-nav) {
        display: none;
    }
    
    .hero {
        padding: 6rem 1.5rem 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}