/* =========================================================
   SERVICE-MAIN.CSS
   Dark theme for the main Polygrids service page.
   Loaded together with base.css (which provides the shared
   header/footer). This file intentionally has NO nav/mobile-menu
   rules and NO footer rules of its own — the shared header/footer
   from base.css + partials/header.html + partials/footer.html
   replace the dark theme concept's original nav + footer.
========================================================= */

:root{
  --ink:#0d1417;
  --ink-2:#132025;
  --ink-3:#1a2b32;
  --blue:#1c4f6b;
  --blue-light:#3d7fa3;
  --teal:#6fc4d1;
  --teal-soft:#a3dce5;
  --paper:#f3efe8;
  --paper-dim:rgba(243,239,232,.65);
  --line:rgba(61,127,163,.28);
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--ink);color:var(--paper);overflow-x:hidden}
h1,h2,h3,.logo-text{font-family:var(--font-display)}
img{max-width:100%;display:block}
.eyebrow{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--teal);font-weight:600;margin-bottom:14px;display:block}

/* Reveal-on-scroll system now lives in base.css (shared site-wide) */

/* progress bar (nav + mobile menu removed — shared header/footer used instead) */
.progress-bar{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--teal),var(--blue-light));z-index:9999;width:0%}

.scene{width:100%;min-height:100vh;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:110px 5vw}

/* HERO */
.scene-1{background:radial-gradient(ellipse at 50% 20%,var(--ink-3) 0%,var(--ink) 70%);flex-direction:column;text-align:center;padding-top:110px}
.hero-content{z-index:5;max-width:820px;padding:0 16px}
.hero-title{font-size:clamp(42px,8vw,96px);font-weight:700;line-height:1;letter-spacing:-2px}
.hero-title em{font-style:normal;color:var(--teal-soft)}
.hero-tagline{font-size:clamp(15px,2vw,18px);color:var(--paper-dim);max-width:560px;margin:22px auto 0;line-height:1.7}
.scroll-indicator{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--paper-dim);animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-8px)}}

/* 3D EXPLODED PAVEMENT STAGE */
.stage-wrap{width:100%;max-width:640px;margin:50px auto 0;perspective:1600px}
.pavement-3d{position:relative;width:100%;height:380px;transform-style:preserve-3d;transform:rotateX(52deg) rotateZ(-6deg)}
.p-layer{position:absolute;left:50%;top:50%;width:86%;max-width:380px;height:60px;margin-left:-43%;margin-top:-30px;border-radius:6px;display:flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-size:clamp(10px,2vw,13px);letter-spacing:1px;text-transform:uppercase;font-weight:600;box-shadow:0 30px 50px rgba(0,0,0,.55);transform:translateZ(0px);text-align:center;white-space:nowrap}
.p-asphalt{background:#2b2f31;color:#e8e4dc;z-index:4}
.p-geogrid{background:linear-gradient(135deg,var(--teal),var(--teal-soft));color:var(--ink);z-index:3;border:2px solid rgba(255,255,255,.4)}
.p-base{background:#5b5852;color:#f0ede6;z-index:2}
.p-subgrade{background:#4a3a2c;color:#f0ede6;z-index:1}

.section-head{text-align:center;max-width:720px;margin:0 auto 56px;padding:0 10px}
.section-head h2{font-size:clamp(28px,4.5vw,48px);font-weight:600;letter-spacing:-1px}
.section-head p{color:var(--paper-dim);font-size:16px;margin-top:14px;line-height:1.7}

/* SCENE 2 */
.scene-2{background:var(--ink-2)}
.intro-content{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;max-width:1300px;width:100%;align-items:center}
.intro-text h2{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-1px;line-height:1.15;margin-bottom:22px}
.intro-text p{font-size:16px;line-height:1.8;color:var(--paper-dim)}
.intro-text p+p{margin-top:16px}
.product-photo{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);aspect-ratio:4/5}
.product-photo img{width:100%;height:100%;object-fit:cover}
.product-photo .tag{position:absolute;bottom:0;left:0;right:0;padding:18px 22px;background:linear-gradient(0deg,rgba(13,20,23,.92),transparent);font-family:var(--font-display);font-size:13px;letter-spacing:1px}

/* SCENE 3 */
.scene-3{background:var(--ink)}
.benefits-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;max-width:1300px;width:100%}
.benefit-card{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:32px 24px;transition:border-color .3s,transform .3s}
.benefit-card:hover{border-color:var(--teal);transform:translateY(-6px)}
.benefit-num{font-family:var(--font-display);font-size:12px;color:var(--teal);letter-spacing:2px;margin-bottom:14px;display:block}
.benefit-card h3{font-size:18px;margin-bottom:10px;font-weight:600}
.benefit-card p{font-size:14px;color:var(--paper-dim);line-height:1.6}

/* SCENE 4 */
.scene-4{background:var(--ink-2)}
.products-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;max-width:1300px;width:100%}
.product-card{background:var(--ink);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .35s,border-color .35s;display:block;color:inherit;text-decoration:none}
.product-card:hover{transform:translateY(-8px);border-color:var(--blue-light)}
.product-card .thumb{aspect-ratio:1/1;overflow:hidden}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.product-card:hover .thumb img{transform:scale(1.08)}
.product-card .info{padding:18px}
.product-card h3{font-size:14px;font-weight:600;letter-spacing:.5px}
.product-card p{font-size:12.5px;color:var(--paper-dim);margin-top:6px}

/* SCENE 5 */
.scene-5{background:var(--ink)}
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:1300px;width:100%}
.app-item{background:transparent;border:1px solid var(--line);border-radius:12px;padding:26px 20px;transition:background .3s,border-color .3s}
.app-item:hover{background:var(--ink-2);border-color:var(--blue-light)}
.app-icon{font-size:28px;color:var(--blue-light);margin-bottom:12px;display:block}
.app-item h3{font-size:15px;font-weight:600}
.app-item p{font-size:12.5px;color:var(--paper-dim);margin-top:6px}

/* SCENE 6 */
.scene-6{background:var(--ink-2)}
.works-container{max-width:1300px;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.works-text h2{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-1px;margin-bottom:20px}
.works-text p{font-size:15.5px;line-height:1.8;color:var(--paper-dim);margin-bottom:20px}
.works-list{list-style:none}
.works-list li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;font-size:14.5px}
.works-list i{color:var(--teal)}
.works-diagram{background:var(--ink);border-radius:14px;padding:26px;border:1px solid var(--line)}
.layer{padding:16px;margin:8px 0;border-radius:8px;text-align:center;font-weight:600;font-size:13.5px;letter-spacing:.5px}
.layer-asphalt{background:#2b2f31;color:#e8e4dc}
.layer-geogrid{background:linear-gradient(135deg,var(--teal),var(--teal-soft));color:var(--ink)}
.layer-base{background:#5b5852;color:#f0ede6}
.layer-subgrade{background:#4a3a2c;color:#f0ede6}

/* SCENE 7 */
.scene-7{background:var(--ink)}
.specs-table{width:100%;max-width:900px;margin:0 auto;border-collapse:collapse}
.specs-table tr{border-bottom:1px solid var(--line)}
.specs-table td{padding:18px 16px;font-size:14.5px}
.specs-table td:first-child{color:var(--teal);font-weight:600;width:42%;font-family:var(--font-display);letter-spacing:.3px}
.specs-table tr:hover{background:var(--ink-2)}

/* SCENE 8 */
.scene-8{background:var(--ink-2);flex-direction:column}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1300px;width:100%;margin-bottom:44px}
.stat-item{background:var(--ink);border:1px solid var(--line);border-radius:14px;padding:28px;text-align:center}
.stat-number{font-family:var(--font-display);font-size:clamp(36px,5vw,52px);font-weight:700;color:var(--teal-soft);display:block}
.stat-label{font-size:13px;color:var(--paper-dim);margin-top:8px}
.stats-note{max-width:760px;margin:0 auto;text-align:center;font-size:15px;color:var(--paper-dim);line-height:1.8;padding:0 10px}

/* SCENE 9 */
.scene-9{background:var(--ink)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;max-width:1300px;width:100%}
.feature-icon{font-size:28px;color:var(--blue-light);margin-bottom:14px;display:block}
.feature-item h3{font-size:19px;margin-bottom:10px;font-weight:600}
.feature-item p{color:var(--paper-dim);line-height:1.6;font-size:14px}

/* FAQ */
.faq-section{background:var(--paper);color:var(--ink);padding:100px 5vw}
.faq-container{max-width:860px;margin:0 auto}
.faq-container .section-head h2{color:var(--ink)}
.faq-container .section-head p{color:#5a5348}
.faq-item{background:#fff;border-radius:12px;margin-bottom:14px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.faq-question{padding:22px 24px;display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer;font-weight:600;font-size:15.5px}
.faq-question i{transition:.3s;color:var(--blue);flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:.3s;color:#4a453d;line-height:1.7;font-size:14.5px}
.faq-item.active .faq-answer{padding:0 24px 22px;max-height:220px}

/* CONTACT */
.contact-section{background:var(--ink);padding:100px 5vw}
.contact-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact-info h2{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-1px;margin-bottom:20px}
.contact-info p{font-size:15.5px;color:var(--paper-dim);line-height:1.8;margin-bottom:32px}
.contact-details{list-style:none}
.contact-details li{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px;font-size:14.5px;line-height:1.6}
.contact-details i{color:var(--teal);font-size:19px;margin-top:2px;flex-shrink:0}
.contact-details a{color:inherit;text-decoration:none}
.contact-form{background:var(--ink-2);padding:36px;border-radius:14px;border:1px solid var(--line)}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:7px;font-size:12px;color:var(--paper-dim);letter-spacing:.3px;text-transform:uppercase}
.form-group input,.form-group textarea{width:100%;padding:13px;background:var(--ink);border:1px solid var(--line);border-radius:8px;color:var(--paper);font-size:15px;font-family:var(--font-body)}
.form-group textarea{height:auto;resize:vertical}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--teal)}
.submit-btn{width:100%;padding:15px;background:var(--teal);border:none;border-radius:8px;color:var(--ink);font-size:15.5px;font-weight:700;cursor:pointer;font-family:var(--font-display)}
.submit-btn:hover{background:var(--teal-soft)}
.form-note{font-size:12px;color:var(--paper-dim);margin-top:12px;text-align:center}

/* RESOURCES / DOWNLOADS (compact list, not a full-height scene) */
.resources-section{background:var(--ink);padding:100px 5vw}
.resources-list{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.resource-link-item{display:flex;align-items:center;gap:16px;padding:20px 24px;background:var(--ink-2);border:1px solid var(--line);border-radius:10px;text-decoration:none;color:var(--paper);transition:border-color .3s,transform .3s}
.resource-link-item:hover{border-color:var(--teal);transform:translateY(-4px)}
.resource-link-item i{font-size:24px;color:var(--teal);flex-shrink:0}
.resource-link-item span{font-size:14.5px;font-weight:600}

/* CROSS-LINKS: explore the rest of the Polygrids range */
.range-section{background:var(--ink-2);padding:100px 5vw}
.range-grid{max-width:1300px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.range-card{display:block;background:var(--ink);border:1px solid var(--line);border-radius:14px;padding:26px 22px;text-decoration:none;transition:transform .3s,border-color .3s}
.range-card:hover{transform:translateY(-6px);border-color:var(--teal)}
.range-card .range-tag{font-family:var(--font-display);font-size:11px;color:var(--teal);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px;display:block}
.range-card h3{font-size:16px;font-weight:600;color:var(--paper);margin-bottom:8px}
.range-card p{font-size:13px;color:var(--paper-dim);line-height:1.6}
.range-card.current{border-color:var(--teal);background:var(--ink-2);opacity:0.6;pointer-events:none}

/* Footnote style for approximate spec figures */
.spec-footnote{max-width:900px;margin:18px auto 0;font-size:12.5px;color:var(--paper-dim);text-align:center}

/* ============ RESPONSIVE ============ */
/* Tablet / small laptop */
@media (max-width:1024px){
  .benefits-grid,.apps-grid,.products-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .intro-content,.works-container,.contact-container{grid-template-columns:1fr;gap:40px}
  .product-photo{max-width:480px;margin:0 auto;width:100%}
  .range-grid{grid-template-columns:repeat(2,1fr)}
}
/* Mobile */
@media (max-width:680px){
  .scene{padding:90px 5vw}
  .benefits-grid,.apps-grid,.products-grid,.stats-grid,.features-grid{grid-template-columns:1fr}
  .pavement-3d{height:300px}
  .p-layer{height:52px}
  .contact-form{padding:26px}
  .section-head{margin-bottom:40px}
  .resources-list{grid-template-columns:1fr}
  .range-grid{grid-template-columns:1fr}
  .resources-section,.range-section{padding:70px 5vw}
}
@media (max-width:420px){
  .hero-title{letter-spacing:-1px}
  .p-layer{white-space:normal}
}