:root{
    --green:#1f9d47;
    --green-dark:#117a35;
    --gold:#e7a40a;
    --gold-dark:#c98707;
    --navy:#0d1b2a;
    --navy-soft:#132238;
    --text:#1d2939;
    --muted:#667085;
    --line:#e6ebf2;
    --white:#ffffff;
    --bg:#ffffff;
    --bg-soft:#f7faf8;
    --bg-alt:#f4f7fa;
    --footer-bg:#041126;

    --shadow-sm:0 10px 24px rgba(16,24,40,0.06);
    --shadow-md:0 20px 50px rgba(16,24,40,0.10);
    --shadow-lg:0 28px 70px rgba(16,24,40,0.14);

    --radius-lg:30px;
    --radius-md:22px;
    --radius-sm:16px;

    --container:1320px;
}

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

html{
    scroll-behavior:smooth;
    -webkit-text-size-adjust:100%;
}

body{
    background:var(--bg);
    color:var(--text);
    line-height:1.65;
    font-family:
        "Segoe UI",
        "Segoe UI Variable",
        "Helvetica Neue",
        Arial,
        "Noto Sans",
        sans-serif;
    text-rendering:optimizeLegibility;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}

img{
    max-width:100%;
    display:block;
}

a{
    color:inherit;
    text-decoration:none;
}

button,
input,
textarea,
select{
    font:inherit;
}

.container{
    width:min(100% - 48px, var(--container));
    margin:0 auto;
}

/* =========================
   HEADER
========================= */
.site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(255,255,255,0.94);
    backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(17,24,39,0.08);
}

.nav-wrap{
    min-height:102px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
}

.brand{
    display:flex;
    align-items:center;
    gap:16px;
    min-width:0;
}

.brand img{
    width:58px;
    height:58px;
    object-fit:contain;
    flex-shrink:0;
}

.brand-text{
    display:flex;
    flex-direction:column;
    line-height:1.12;
}

.brand-text strong{
    font-size:30px;
    font-weight:850;
    letter-spacing:-0.5px;
    color:var(--navy);
}

.brand-text span{
    margin-top:6px;
    font-size:12px;
    font-weight:600;
    letter-spacing:1.8px;
    text-transform:uppercase;
    color:#6b7c98;
}

.main-nav{
    display:flex;
    align-items:center;
    gap:34px;
}

.main-nav a{
    font-size:17px;
    font-weight:750;
    color:#1f2937;
    transition:all .25s ease;
}

.main-nav a:hover{
    color:var(--green-dark);
}

.nav-cta{
    min-height:56px;
    padding:0 28px;
    border-radius:999px;
    color:#fff !important;
    background:linear-gradient(135deg, var(--green), var(--gold));
    box-shadow:0 12px 28px rgba(231,164,10,0.18);
}

.menu-toggle{
    display:none;
    width:48px;
    height:48px;
    border:none;
    background:#eef3f7;
    border-radius:12px;
    cursor:pointer;
    padding:10px;
}

.menu-toggle span{
    display:block;
    height:2px;
    margin:6px 0;
    background:#1f2937;
    border-radius:3px;
}

/* =========================
   BUTTONS
========================= */
.btn{
    min-height:60px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:0 28px;
    border-radius:999px;
    font-size:17px;
    font-weight:800;
    border:1px solid transparent;
    transition:all .25s ease;
}

.btn-primary{
    color:#fff;
    background:linear-gradient(135deg, var(--green), var(--gold));
    box-shadow:0 16px 30px rgba(231,164,10,0.18);
}

.btn-primary:hover{
    transform:translateY(-2px);
}

.btn-outline{
    background:#fff;
    color:var(--navy);
    border-color:#d8e1ea;
}

.btn-outline:hover{
    border-color:var(--green);
    color:var(--green-dark);
}

.btn-light{
    background:#fff;
    color:var(--navy);
    border-color:#fff;
}

.full{
    width:100%;
}

/* =========================
   HERO
========================= */
.hero-pro{
    position:relative;
    overflow:hidden;
    padding:88px 0 84px;
    background:
        radial-gradient(circle at top left, rgba(31,157,71,0.08), transparent 24%),
        radial-gradient(circle at bottom right, rgba(231,164,10,0.08), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, #f7faf8 100%);
}

.hero-pro-grid{
    display:grid;
    grid-template-columns:0.92fr 1.08fr;
    gap:56px;
    align-items:center;
}

.hero-pro-content{
    position:relative;
    z-index:2;
}

.eyebrow,
.section-tag{
    display:inline-flex;
    align-items:center;
    min-height:44px;
    padding:0 18px;
    border-radius:999px;
    background:rgba(31,157,71,0.10);
    color:var(--green-dark);
    font-size:13px;
    font-weight:800;
    letter-spacing:1.4px;
    text-transform:uppercase;
    margin-bottom:22px;
}

.hero-pro h1{
    font-size:64px;
    line-height:1.02;
    letter-spacing:-1.6px;
    font-weight:900;
    color:var(--navy);
    margin-bottom:22px;
}

.hero-pro h1 span{
    display:block;
    margin-top:8px;
    background:linear-gradient(135deg, var(--green-dark), var(--gold-dark));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    color:transparent;
}

.hero-pro .hero-desc{
    font-size:20px;
    line-height:1.75;
    color:#6a7a91;
    max-width:720px;
    margin-bottom:28px;
}

.hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-bottom:28px;
}

.hero-highlights{
    display:grid;
    gap:12px;
    margin-bottom:24px;
}

.highlight-item{
    background:rgba(255,255,255,0.84);
    border:1px solid #e6edf4;
    border-radius:18px;
    padding:14px 16px;
    box-shadow:var(--shadow-sm);
}

.highlight-item strong{
    display:block;
    font-size:16px;
    line-height:1.35;
    font-weight:800;
    color:var(--navy-soft);
    margin-bottom:4px;
}

.highlight-item span{
    display:block;
    font-size:14px;
    line-height:1.55;
    color:#6b7a90;
}

.hero-stats{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:16px;
}

.stat-card{
    background:#fff;
    border:1px solid #e5ebf2;
    border-radius:20px;
    padding:20px 18px;
    box-shadow:var(--shadow-sm);
}

.stat-card strong{
    display:block;
    font-size:26px;
    line-height:1.1;
    font-weight:900;
    color:var(--navy-soft);
    margin-bottom:6px;
}

.stat-card span{
    display:block;
    font-size:14px;
    line-height:1.5;
    color:#6c7b91;
}

.hero-pro-visual{
    position:relative;
}

.hero-image-frame{
    position:relative;
    border-radius:32px;
    overflow:hidden;
    background:#fff;
    border:1px solid #dfE7ef;
    box-shadow:var(--shadow-lg);
    min-height:660px;
}

.hero-image-frame::before{
    content:"";
    position:absolute;
    inset:0;
    z-index:2;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0.00) 35%, rgba(8,21,43,0.08) 100%);
    pointer-events:none;
}

.hero-image{
    width:100%;
    height:660px;
    object-fit:cover;
    display:block;
}

/* =========================
   SECTIONS
========================= */
.section{
    padding:96px 0;
}

.section-alt{
    background:var(--bg-alt);
}

.section-dark{
    background:linear-gradient(135deg, #071326 0%, #0b1b33 100%);
    color:#fff;
}

.section-heading{
    margin-bottom:40px;
    max-width:920px;
}

.section-heading.center{
    text-align:center;
    margin-left:auto;
    margin-right:auto;
}

.section-heading h2{
    font-size:44px;
    line-height:1.16;
    font-weight:900;
    letter-spacing:-0.8px;
    color:var(--navy);
    margin-bottom:14px;
}

.section-heading p{
    font-size:18px;
    line-height:1.78;
    color:#6b7a90;
}

.section-heading.light h2,
.section-heading.light p{
    color:#fff;
}

/* =========================
   GRIDS / CARDS
========================= */
.about-grid,
.cards-grid,
.process-grid,
.benefit-grid{
    display:grid;
    gap:24px;
}

.about-grid{
    grid-template-columns:repeat(3, 1fr);
}

.cards-3{
    grid-template-columns:repeat(3, 1fr);
}

.about-card,
.service-card,
.process-card,
.benefit-card,
.mini-card{
    background:#fff;
    border:1px solid #e5ebf3;
    border-radius:26px;
    padding:30px 28px;
    box-shadow:var(--shadow-sm);
}

.about-card h3,
.service-card h3,
.process-card h3,
.benefit-card h3,
.mini-card h3{
    font-size:24px;
    line-height:1.3;
    color:var(--navy-soft);
    font-weight:850;
    margin-bottom:12px;
}

.about-card p,
.service-card p,
.process-card p,
.benefit-card p,
.mini-card p{
    font-size:17px;
    line-height:1.8;
    color:#6c7b91;
}

.icon-box{
    width:64px;
    height:64px;
    border-radius:18px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:28px;
    color:#fff;
    margin-bottom:18px;
}

.solar-icon{ background:linear-gradient(135deg, #ff9b05, #ef8b00); }
.gas-icon{ background:linear-gradient(135deg, #3291ff, #1b6fe2); }
.green-icon{ background:linear-gradient(135deg, #16a34a, #0f8c3d); }

/* =========================
   SERVICE LIST
========================= */
.service-list{
    display:grid;
    gap:18px;
}

.service-item{
    display:grid;
    grid-template-columns:86px 1fr;
    gap:20px;
    background:#fff;
    border:1px solid #e4eaf2;
    border-radius:24px;
    padding:24px;
    box-shadow:var(--shadow-sm);
}

.service-number{
    width:64px;
    height:64px;
    border-radius:18px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    font-weight:900;
    color:#fff;
    background:linear-gradient(135deg, var(--green), var(--gold));
}

.service-body h3{
    font-size:25px;
    line-height:1.3;
    font-weight:850;
    color:var(--navy-soft);
    margin-bottom:8px;
}

.service-body p{
    font-size:17px;
    line-height:1.75;
    color:#6d7b91;
}

/* =========================
   ADVANTAGES
========================= */
.benefit-grid{
    grid-template-columns:repeat(4, 1fr);
}

.benefit-card{
    background:rgba(255,255,255,0.06);
    border:1px solid rgba(255,255,255,0.10);
    box-shadow:none;
}

.benefit-card h3{
    color:#fff;
}

.benefit-card p{
    color:rgba(255,255,255,0.78);
}

/* =========================
   TARGET
========================= */
.target-grid{
    display:grid;
    grid-template-columns:1.08fr 0.92fr;
    gap:28px;
    align-items:start;
}

.target-content h2{
    font-size:44px;
    line-height:1.16;
    font-weight:900;
    letter-spacing:-0.8px;
    color:var(--navy);
    margin-bottom:14px;
}

.target-content p{
    font-size:18px;
    line-height:1.78;
    color:#6b7a90;
    margin-bottom:20px;
}

.tick-list{
    list-style:none;
    display:grid;
    gap:12px;
}

.tick-list li{
    position:relative;
    padding-left:30px;
    font-size:17px;
    line-height:1.7;
    font-weight:700;
    color:#20304b;
}

.tick-list li::before{
    content:"✓";
    position:absolute;
    left:0;
    top:0;
    color:var(--green-dark);
    font-weight:900;
}

.target-side{
    display:grid;
    gap:18px;
}

/* =========================
   PROCESS
========================= */
.process-grid{
    grid-template-columns:repeat(4, 1fr);
}

.process-card span{
    width:56px;
    height:56px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:16px;
    font-size:22px;
    font-weight:900;
    color:#fff;
    margin-bottom:16px;
    background:linear-gradient(135deg, var(--green), var(--gold));
}

/* =========================
   CTA
========================= */
.cta-section{
    background:
        radial-gradient(circle at top right, rgba(231,164,10,0.08), transparent 24%),
        radial-gradient(circle at bottom left, rgba(31,157,71,0.08), transparent 24%),
        #ffffff;
}

.cta-box{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:28px;
    align-items:stretch;
    background:linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
    border:1px solid #e6ebf2;
    border-radius:30px;
    box-shadow:var(--shadow-md);
    padding:30px;
}

.cta-content h2{
    font-size:42px;
    line-height:1.16;
    font-weight:900;
    letter-spacing:-0.8px;
    color:var(--navy);
    margin-bottom:14px;
}

.cta-content p{
    font-size:18px;
    line-height:1.78;
    color:#6b7a90;
}

.contact-card{
    background:linear-gradient(180deg, #08152b 0%, #091730 100%);
    color:#fff;
    border-radius:28px;
    padding:28px;
    box-shadow:0 22px 50px rgba(8,21,43,0.24);
}

.contact-item{
    padding-bottom:18px;
    margin-bottom:18px;
    border-bottom:1px solid rgba(255,255,255,0.10);
}

.contact-item:last-of-type{
    margin-bottom:22px;
}

.contact-item .label{
    display:block;
    font-size:12px;
    font-weight:800;
    letter-spacing:1.5px;
    text-transform:uppercase;
    color:rgba(255,255,255,0.64);
    margin-bottom:7px;
}

.contact-item strong{
    display:block;
    font-size:17px;
    line-height:1.7;
    font-weight:800;
}

.contact-item a{
    color:#fff;
}

.contact-actions{
    display:grid;
    gap:14px;
}

/* =========================
   FOOTER
========================= */
.site-footer{
    background:var(--footer-bg);
    color:rgba(255,255,255,0.82);
    padding:68px 0 22px;
}

.footer-grid{
    display:grid;
    grid-template-columns:1.2fr 1fr 1fr;
    gap:32px;
    padding-bottom:30px;
    border-bottom:1px solid rgba(255,255,255,0.08);
}

.footer-brand{
    display:flex;
    align-items:center;
    gap:16px;
    margin-bottom:18px;
}

.footer-brand img{
    width:56px;
    height:56px;
    object-fit:contain;
}

.footer-brand strong{
    display:block;
    font-size:24px;
    color:#fff;
    font-weight:850;
    margin-bottom:4px;
}

.footer-brand span{
    display:block;
    font-size:12px;
    letter-spacing:1.6px;
    text-transform:uppercase;
    color:rgba(255,255,255,0.64);
}

.footer-col h4{
    font-size:22px;
    font-weight:850;
    color:#fff;
    margin-bottom:16px;
}

.footer-col p,
.footer-list li{
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,0.76);
}

.footer-list{
    list-style:none;
    display:grid;
    gap:10px;
}

.footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding-top:20px;
    font-size:15px;
}

.footer-bottom a{
    color:#fff;
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 1280px){
    .hero-pro h1{
        font-size:56px;
    }

    .section-heading h2,
    .target-content h2,
    .cta-content h2{
        font-size:40px;
    }
}

@media (max-width: 1100px){
    .hero-pro-grid,
    .target-grid,
    .cta-box{
        grid-template-columns:1fr;
    }

    .about-grid,
    .cards-3,
    .process-grid,
    .benefit-grid,
    .footer-grid{
        grid-template-columns:repeat(2,1fr);
    }

    .hero-image-frame{
        min-height:560px;
    }

    .hero-image{
        height:560px;
    }
}

@media (max-width: 860px){
    .container{
        width:min(100% - 28px, var(--container));
    }

    .nav-wrap{
        min-height:82px;
    }

    .brand img{
        width:46px;
        height:46px;
    }

    .brand-text strong{
        font-size:22px;
    }

    .brand-text span{
        font-size:10px;
        letter-spacing:1.1px;
    }

    .menu-toggle{
        display:block;
    }

    .main-nav{
        display:none;
        position:absolute;
        top:82px;
        left:14px;
        right:14px;
        flex-direction:column;
        align-items:flex-start;
        gap:14px;
        background:#fff;
        border:1px solid #e6ebf2;
        border-radius:18px;
        padding:18px;
        box-shadow:var(--shadow-md);
    }

    .main-nav.show{
        display:flex;
    }

    .main-nav a{
        font-size:16px;
    }

    .hero-pro{
        padding:54px 0 56px;
    }

    .hero-pro h1{
        font-size:40px;
        line-height:1.05;
        letter-spacing:-1px;
    }

    .hero-pro .hero-desc{
        font-size:17px;
    }

    .section{
        padding:76px 0;
    }

    .section-heading h2,
    .target-content h2,
    .cta-content h2{
        font-size:31px;
    }

    .section-heading p,
    .target-content p,
    .cta-content p,
    .about-card p,
    .service-card p,
    .service-body p,
    .mini-card p,
    .process-card p,
    .benefit-card p{
        font-size:16px;
    }

    .hero-stats,
    .about-grid,
    .cards-3,
    .process-grid,
    .benefit-grid,
    .footer-grid{
        grid-template-columns:1fr;
    }

    .service-item{
        grid-template-columns:1fr;
    }

    .hero-image-frame{
        min-height:auto;
    }

    .hero-image{
        height:auto;
        max-height:420px;
    }

    .hero-actions{
        flex-direction:column;
    }

    .btn{
        width:100%;
        min-height:54px;
        font-size:16px;
    }

    .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
    }
}

@media (max-width: 560px){
    .hero-pro h1{
        font-size:34px;
    }

    .section-heading h2,
    .target-content h2,
    .cta-content h2{
        font-size:28px;
    }

    .stat-card,
    .about-card,
    .service-card,
    .process-card,
    .benefit-card,
    .mini-card,
    .service-item,
    .cta-box,
    .contact-card{
        padding:22px;
    }
}