/* KS Lee Energy — Main stylesheet */
:root{
  --kslee-primary:#0B3C5D;
  --kslee-secondary:#1FA67A;
  --kslee-dark:#0A1929;
  --kslee-light:#F5F7FA;
  --kslee-muted:#5A6B7B;
  --kslee-border:#E5EAF0;
  --kslee-white:#fff;
  --kslee-radius:12px;
  --kslee-shadow:0 8px 30px rgba(11,60,93,.08);
  --kslee-transition:.3s cubic-bezier(.4,0,.2,1);
  --kslee-font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--kslee-font);color:var(--kslee-dark);background:var(--kslee-white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--kslee-primary);text-decoration:none;transition:color var(--kslee-transition)}
a:hover{color:var(--kslee-secondary)}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--kslee-dark);margin:0 0 .6em}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.25em}
button{font-family:inherit;cursor:pointer;border:0}
:focus-visible{outline:3px solid var(--kslee-secondary);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:820px}
.section{padding:88px 0}
.section-head{margin-bottom:56px}
.section-head.center,.center{text-align:center}
.section-eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.8rem;font-weight:600;color:var(--kslee-secondary);margin:0 0 12px}
.section-title{max-width:820px;margin:0 auto 12px}
.lead{font-size:1.1rem;color:var(--kslee-muted)}

/* Screen reader */
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--kslee-dark);color:#fff;padding:10px 14px;border-radius:6px;z-index:9999}
.skip-link:focus{left:8px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:14px 26px;border-radius:999px;font-weight:600;font-size:.95rem;letter-spacing:.01em;transition:all var(--kslee-transition);border:2px solid transparent;cursor:pointer;text-align:center}
.btn-primary{background:var(--kslee-primary);color:#fff}
.btn-primary:hover{background:var(--kslee-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--kslee-shadow)}
.btn-secondary{background:var(--kslee-secondary);color:#fff}
.btn-secondary:hover{background:#178a65;color:#fff;transform:translateY(-2px);box-shadow:var(--kslee-shadow)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline:hover{background:#fff;color:var(--kslee-primary)}
.btn-sm{padding:10px 18px;font-size:.85rem}
.btn-lg{padding:16px 34px;font-size:1rem}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--kslee-border);transition:box-shadow var(--kslee-transition)}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(11,60,93,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.site-title-link{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--kslee-dark)}
.site-logo-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--kslee-primary),var(--kslee-secondary));color:#fff;font-weight:800;font-size:.85rem}
.main-navigation .primary-menu{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.main-navigation .primary-menu a{display:inline-block;padding:10px 14px;color:var(--kslee-dark);font-weight:500;font-size:.95rem;border-radius:8px}
.main-navigation .primary-menu a:hover,.main-navigation .primary-menu .current-menu-item>a{background:var(--kslee-light);color:var(--kslee-primary)}
.menu-toggle{display:none;background:transparent;padding:8px;border-radius:8px}
.menu-toggle-bar{display:block;width:24px;height:2px;background:var(--kslee-dark);margin:5px 0;transition:transform var(--kslee-transition)}

@media (max-width:900px){
  .menu-toggle{display:inline-block}
  .main-navigation .primary-menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;border-top:1px solid var(--kslee-border);padding:12px 24px;display:none;box-shadow:var(--kslee-shadow)}
  .main-navigation.toggled .primary-menu{display:flex}
  .header-cta{display:none}
}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;isolation:isolate;padding:120px 0 100px}
.hero-bg{position:absolute;inset:0;z-index:-2;background:linear-gradient(135deg,#0B3C5D 0%,#0A1929 60%,#0B3C5D 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(1200px 500px at 80% 20%,rgba(31,166,122,.28),transparent 60%),radial-gradient(1000px 400px at 10% 90%,rgba(31,166,122,.16),transparent 60%);pointer-events:none}
.hero-inner{max-width:900px;position:relative}
.hero-eyebrow{color:rgba(255,255,255,.75);text-transform:uppercase;letter-spacing:.16em;font-size:.8rem;font-weight:600;margin:0 0 18px}
.hero-title{color:#fff;font-size:clamp(2.2rem,5.5vw,4rem);margin-bottom:20px;letter-spacing:-.02em}
.hero-subtitle{font-size:clamp(1rem,1.7vw,1.25rem);color:rgba(255,255,255,.82);max-width:640px;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;max-width:640px}
.hero-stats li{display:flex;flex-direction:column;gap:4px}
.hero-stats strong{font-size:1.9rem;font-weight:800;color:var(--kslee-secondary);line-height:1}
.hero-stats span{color:rgba(255,255,255,.75);font-size:.85rem}

/* About / MVV */
.two-col{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
@media (max-width:840px){.two-col{grid-template-columns:1fr;gap:32px}}
.mvv{display:grid;gap:16px}
.mvv-card{padding:24px;border-radius:var(--kslee-radius);border:1px solid var(--kslee-border);background:var(--kslee-white);transition:all var(--kslee-transition)}
.mvv-card:hover{box-shadow:var(--kslee-shadow);transform:translateY(-3px)}
.mvv-card h3{color:var(--kslee-primary);margin-bottom:8px}
.mvv-card p{margin:0;color:var(--kslee-muted)}

/* Grids */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:768px){.grid-3,.grid-2{grid-template-columns:1fr}.grid-4{grid-template-columns:1fr}}

/* Section backgrounds */
.section-services,.section-projects,.section-faq{background:var(--kslee-light)}
.section-industries{background:linear-gradient(180deg,#fff 0%,var(--kslee-light) 100%)}

/* Service cards */
.service-card{background:#fff;padding:28px;border-radius:var(--kslee-radius);border:1px solid var(--kslee-border);transition:all var(--kslee-transition);position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--kslee-secondary);transform:scaleY(0);transform-origin:top;transition:transform var(--kslee-transition)}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--kslee-shadow);border-color:transparent}
.service-card:hover::before{transform:scaleY(1)}
.service-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--kslee-primary),var(--kslee-secondary));color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:16px}
.service-card h3{margin-bottom:8px}
.service-card p{margin:0;color:var(--kslee-muted);font-size:.95rem}

/* Why / feature cards */
.feature-card{background:#fff;padding:28px;border-radius:var(--kslee-radius);border:1px solid var(--kslee-border);transition:all var(--kslee-transition)}
.feature-card:hover{box-shadow:var(--kslee-shadow);transform:translateY(-3px)}
.feature-card h3{color:var(--kslee-primary);margin-bottom:8px}
.feature-card p{margin:0;color:var(--kslee-muted)}

/* Projects */
.project-card{background:#fff;border-radius:var(--kslee-radius);overflow:hidden;border:1px solid var(--kslee-border);transition:all var(--kslee-transition)}
.project-card:hover{transform:translateY(-4px);box-shadow:var(--kslee-shadow)}
.project-thumb{aspect-ratio:16/10;background:linear-gradient(135deg,var(--kslee-primary),var(--kslee-secondary));position:relative}
.project-thumb::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 10px,transparent 10px 20px)}
.project-body{padding:22px}
.project-body h3{margin-bottom:6px}
.project-body p{margin:0;color:var(--kslee-muted);font-size:.9rem}

/* Industries */
.industries-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.industries-grid li{background:#fff;border:1px solid var(--kslee-border);border-radius:var(--kslee-radius);padding:22px;text-align:center;font-weight:600;color:var(--kslee-primary);transition:all var(--kslee-transition)}
.industries-grid li:hover{background:var(--kslee-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--kslee-shadow)}

/* Testimonials */
.section-testimonials{background:#fff}
.testimonial-slider{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-bottom:56px}
@media (max-width:900px){.testimonial-slider{grid-template-columns:1fr}}
.testimonial{margin:0;padding:28px;background:var(--kslee-light);border-left:4px solid var(--kslee-secondary);border-radius:var(--kslee-radius)}
.testimonial p{font-size:1.02rem;font-style:italic;color:var(--kslee-dark)}
.testimonial footer{color:var(--kslee-muted);font-size:.9rem}
.client-logos{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;align-items:center;justify-items:center;padding-top:16px;border-top:1px solid var(--kslee-border)}
.client-logo{padding:18px 24px;color:var(--kslee-muted);font-weight:700;letter-spacing:.05em;font-size:.85rem;opacity:.7;transition:opacity var(--kslee-transition)}
.client-logo:hover{opacity:1;color:var(--kslee-primary)}

/* News / Post cards */
.post-card{background:#fff;border-radius:var(--kslee-radius);overflow:hidden;border:1px solid var(--kslee-border);transition:all var(--kslee-transition);display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--kslee-shadow)}
.post-card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--kslee-light)}
.post-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--kslee-transition)}
.post-card:hover .post-card-thumb img{transform:scale(1.05)}
.post-card-thumb--placeholder{background:linear-gradient(135deg,var(--kslee-primary),var(--kslee-secondary))}
.post-card-body{padding:22px;flex:1;display:flex;flex-direction:column}
.post-card-body h3{margin-bottom:8px;font-size:1.1rem}
.post-card-body h3 a{color:var(--kslee-dark)}
.post-card-body h3 a:hover{color:var(--kslee-primary)}
.post-meta{color:var(--kslee-muted);font-size:.85rem;margin-bottom:8px}
.read-more{font-weight:600;color:var(--kslee-secondary);margin-top:auto}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--kslee-border);border-radius:var(--kslee-radius);padding:0;margin-bottom:12px;overflow:hidden;transition:all var(--kslee-transition)}
.faq-item[open]{box-shadow:var(--kslee-shadow)}
.faq-item summary{list-style:none;padding:20px 24px;cursor:pointer;font-weight:600;position:relative;padding-right:56px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--kslee-secondary);transition:transform var(--kslee-transition)}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{padding:0 24px 20px;margin:0;color:var(--kslee-muted)}

/* CTA */
.section-cta{background:linear-gradient(135deg,var(--kslee-primary) 0%,var(--kslee-dark) 100%);color:#fff;text-align:center}
.section-cta .cta-title{color:#fff;max-width:760px;margin:0 auto 16px}
.section-cta .cta-sub{color:rgba(255,255,255,.8);max-width:600px;margin:0 auto 28px}

/* Page header */
.page-header{margin-bottom:48px;text-align:center}
.page-title{margin-bottom:8px}
.page-subtitle{color:var(--kslee-muted);max-width:640px;margin:0 auto}

/* Entry / post */
.entry-single{max-width:820px;margin:0 auto}
.entry-thumb{margin:0 0 32px;border-radius:var(--kslee-radius);overflow:hidden}
.entry-content{font-size:1.05rem;color:#1e2b3a}
.entry-content h2,.entry-content h3{margin-top:1.5em}
.entry-content a{color:var(--kslee-secondary);text-decoration:underline}
.entry-content blockquote{margin:1.5em 0;padding:1em 1.5em;border-left:4px solid var(--kslee-secondary);background:var(--kslee-light);border-radius:var(--kslee-radius)}
.entry-content img{border-radius:var(--kslee-radius);margin:1em 0}
.entry-tags{color:var(--kslee-muted);font-size:.9rem;margin-top:24px}

/* Post grid */
.post-grid{display:grid;grid-template-columns:1fr;gap:32px}

/* Sidebar */
.widget-area{margin-top:48px}
.widget{background:var(--kslee-light);padding:24px;border-radius:var(--kslee-radius);margin-bottom:24px}
.widget-title{margin:0 0 12px;font-size:1rem;text-transform:uppercase;letter-spacing:.08em;color:var(--kslee-primary)}
.widget ul{list-style:none;padding:0;margin:0}
.widget li{padding:6px 0;border-bottom:1px solid var(--kslee-border)}
.widget li:last-child{border-bottom:0}

/* Search form */
.search-form{display:flex;gap:8px;max-width:520px;margin:16px auto}
.search-field{flex:1;padding:12px 16px;border-radius:999px;border:1px solid var(--kslee-border);font:inherit;background:#fff}
.search-field:focus{outline:none;border-color:var(--kslee-secondary)}

/* 404 */
.error-404{padding:60px 0}
.error-title{font-size:clamp(5rem,15vw,9rem);background:linear-gradient(135deg,var(--kslee-primary),var(--kslee-secondary));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0}

/* Contact page */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:40px}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.contact-info{background:var(--kslee-light);padding:32px;border-radius:var(--kslee-radius)}
.map-placeholder{margin-top:24px;border-radius:var(--kslee-radius);overflow:hidden;aspect-ratio:4/3;background:#dfe6ee}
.map-placeholder iframe{width:100%;height:100%;border:0;display:block}

/* Contact form */
.contact-form{display:grid;gap:16px;background:#fff;padding:32px;border-radius:var(--kslee-radius);border:1px solid var(--kslee-border)}
.form-row{display:grid;gap:6px}
.form-row-2{grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.form-row-2{grid-template-columns:1fr}}
.contact-form label{font-weight:600;font-size:.9rem;color:var(--kslee-dark)}
.contact-form input,.contact-form textarea{padding:12px 14px;border-radius:10px;border:1px solid var(--kslee-border);font:inherit;background:#fff;color:var(--kslee-dark);transition:border-color var(--kslee-transition)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--kslee-secondary);box-shadow:0 0 0 3px rgba(31,166,122,.15)}
.form-notice{padding:12px 16px;border-radius:8px;margin:0}
.form-notice--success{background:#e7f7f1;color:#0e6b4d;border:1px solid #b7e5d3}
.form-notice--error{background:#fdecec;color:#a52a2a;border:1px solid #f4c5c5}

/* Footer */
.site-footer{background:var(--kslee-dark);color:rgba(255,255,255,.78);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;padding:72px 24px 48px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{color:#fff;margin-bottom:12px;font-size:1.2rem}
.footer-col .widget-title{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px}
.footer-menu{list-style:none;padding:0;margin:0}
.footer-menu li{padding:5px 0}
.footer-menu a{color:rgba(255,255,255,.72);font-size:.95rem}
.footer-menu a:hover{color:var(--kslee-secondary)}
.footer-contact{list-style:none;padding:0;margin:16px 0 0}
.footer-contact li{padding:4px 0;font-size:.92rem}
.footer-contact a{color:rgba(255,255,255,.85)}
.footer-contact strong{color:#fff;margin-right:6px}
.newsletter-form{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.newsletter-form input{flex:1;min-width:180px;padding:12px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);color:#fff;font:inherit}
.newsletter-form input::placeholder{color:rgba(255,255,255,.5)}
.newsletter-success{width:100%;color:var(--kslee-secondary);font-size:.9rem;margin:6px 0 0}
.social-links{display:flex;gap:10px;margin-top:20px}
.social-links a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#fff;font-weight:700;font-size:.85rem;text-transform:uppercase;transition:all var(--kslee-transition)}
.social-links a:hover{background:var(--kslee-secondary);transform:translateY(-2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:.88rem;color:rgba(255,255,255,.55)}
.footer-bottom p{margin:0;text-align:center}

/* Back to top */
.back-to-top{position:fixed;bottom:28px;right:28px;width:46px;height:46px;border-radius:50%;background:var(--kslee-primary);color:#fff;display:grid;place-items:center;font-size:1.2rem;box-shadow:var(--kslee-shadow);z-index:99;transition:all var(--kslee-transition)}
.back-to-top:hover{background:var(--kslee-secondary);transform:translateY(-3px)}

/* Pagination */
.pagination,.nav-links{display:flex;justify-content:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pagination .page-numbers,.nav-links a,.nav-links span{padding:10px 14px;border-radius:8px;background:var(--kslee-light);color:var(--kslee-dark);font-weight:600;font-size:.9rem}
.pagination .current,.nav-links .current{background:var(--kslee-primary);color:#fff}

/* Comments */
.comments-area{margin-top:56px;max-width:820px;margin-left:auto;margin-right:auto}
.comment-list{list-style:none;padding:0}
.comment-body{padding:16px;border:1px solid var(--kslee-border);border-radius:var(--kslee-radius);margin-bottom:12px}
.comment-form input,.comment-form textarea{width:100%;padding:12px;border:1px solid var(--kslee-border);border-radius:8px;margin-bottom:12px;font:inherit}
.comment-form .submit{padding:12px 24px;border-radius:999px;background:var(--kslee-primary);color:#fff;border:0;font-weight:600;cursor:pointer}

/* Scroll animations */
[data-animate]{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
[data-animate].in-view{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  [data-animate]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}