/* Premium CSS — Advanced Concrete & Landscapes */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
    --bg:#020617;--bg-alt:#0a0f1e;--surface:rgba(15,23,42,0.6);--surface-solid:#0f172a;
    --text:#f1f5f9;--text-2:#94a3b8;--text-3:#64748b;
    --accent:#2563eb;--accent-hover:#1d4ed8;--accent-glow:rgba(37,99,235,0.15);
    --border:rgba(255,255,255,0.08);--border-hover:rgba(255,255,255,0.15);
    --gold:#fbbf24;--green:#22c55e;--radius:12px;
    --font:'DM Sans',sans-serif;--ease:cubic-bezier(.4,0,.2,1);
}

/* Light mode overrides */
body:not(.dark-mode){
    --bg:#f8fafc;--bg-alt:#f1f5f9;--surface:rgba(255,255,255,0.8);--surface-solid:#fff;
    --text:#0f172a;--text-2:#475569;--text-3:#94a3b8;
    --border:rgba(0,0,0,0.08);--border-hover:rgba(0,0,0,0.15);
}

html{scroll-behavior:smooth;scroll-padding-top:80px;font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--accent-glow);color:var(--text)}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(100,116,139,.3);border-radius:10px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section-alt{background:var(--bg-alt)}
.section-header{text-align:center;margin-bottom:60px}
.section-header h2{font-size:2.5rem;font-weight:800;margin-bottom:.5rem;letter-spacing:-.5px}
.section-header p{color:var(--text-2);max-width:560px;margin:0 auto}
.section-tag{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);margin-bottom:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-weight:600;font-family:var(--font);font-size:.95rem;cursor:pointer;border:none;transition:all .25s var(--ease)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,.25)}
.btn-glass{background:rgba(255,255,255,.08);color:var(--text);border:1px solid var(--border)}
.btn-glass:hover{background:rgba(255,255,255,.15)}
.btn-lg{padding:16px 36px;font-size:1rem}
.btn-sm{padding:8px 20px;font-size:.85rem}
.btn-full{width:100%;justify-content:center}

/* Loader */
.loader{position:fixed;inset:0;background:var(--bg);z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .5s,visibility .5s}
.loader.hidden{opacity:0;visibility:hidden}
.loader-logo{font-size:2.5rem;font-weight:800;margin-bottom:24px}.loader-logo span{color:var(--accent)}
.loader-bar{width:200px;height:3px;background:var(--border);border-radius:4px;overflow:hidden}
.loader-fill{height:100%;width:0;background:var(--accent);border-radius:4px;animation:load 1.2s var(--ease) forwards}
@keyframes load{to{width:100%}}

/* Scroll Progress */
.scroll-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--green));z-index:1001;width:0;transition:width 50ms linear}

/* Header */
.main-header{position:fixed;top:0;width:100%;z-index:1000;padding:14px 0;background:rgba(2,6,23,.7);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);transition:all .3s var(--ease)}
body:not(.dark-mode) .main-header{background:rgba(248,250,252,.85)}
.main-header.scrolled{padding:10px 0;box-shadow:0 4px 20px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.6rem;font-weight:800;color:var(--text);display:flex;align-items:center}.logo span{color:var(--accent)}
.logo-img{height:36px;width:auto;object-fit:contain}
.main-nav{display:flex;gap:32px}.main-nav a{color:var(--text-2);font-weight:500;font-size:.9rem;transition:color .2s}.main-nav a:hover{color:var(--text)}
.header-actions{display:flex;align-items:center;gap:16px}
.header-phone{color:var(--text);font-weight:600;font-size:.9rem}
.theme-toggle{background:none;border:1px solid var(--border);border-radius:8px;padding:8px;cursor:pointer;color:var(--text-2);display:flex;transition:all .2s}
.theme-toggle:hover{border-color:var(--border-hover);color:var(--text)}
.dark-mode .icon-sun{display:none}.dark-mode .icon-moon{display:block}
body:not(.dark-mode) .icon-sun{display:block}body:not(.dark-mode) .icon-moon{display:none}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:4px}
.mobile-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.mobile-nav{position:fixed;top:60px;left:0;right:0;background:var(--bg);display:none;flex-direction:column;align-items:center;padding:32px;gap:20px;z-index:999;border-bottom:1px solid var(--border)}
.mobile-nav.open{display:flex}
.mobile-nav a{color:var(--text);font-size:1.1rem;font-weight:500}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:120px 0}
.hero-slideshow{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s ease-in-out;will-change:opacity,transform;transform:scale(1.08)}
.hero-slide.active{opacity:1;animation:kenBurns 6s ease-in-out forwards}
@keyframes kenBurns{0%{transform:scale(1)}100%{transform:scale(1.08)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,6,23,.65) 0%,rgba(2,6,23,.82) 100%);z-index:1}
body:not(.dark-mode) .hero-overlay{background:linear-gradient(180deg,rgba(2,6,23,.55) 0%,rgba(2,6,23,.72) 100%)}
.hero-particles{position:absolute;inset:0;pointer-events:none;z-index:1}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);padding:8px 20px;border-radius:50px;font-size:.85rem;color:#fff;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero h1{font-size:3.5rem;font-weight:800;letter-spacing:-1px;color:#fff;margin-bottom:16px;line-height:1.1}
.hero-sub{font-size:1.2rem;color:rgba(255,255,255,.7);margin-bottom:32px}
.hero-cta{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:72px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero-dot{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:transparent;cursor:pointer;transition:all .3s ease;padding:0}
.hero-dot.active{background:#fff;border-color:#fff;transform:scale(1.15)}
.hero-dot:hover{border-color:#fff}
.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.4);animation:bounce 2s infinite;z-index:3}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* Stats */
.stats-bar{background:var(--surface-solid);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:40px 0}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font-size:2.8rem;font-weight:800;color:var(--accent);letter-spacing:-1px}
.stat-suffix{font-size:2rem;font-weight:700;color:var(--accent)}
.stat-text{display:block;font-size:.82rem;color:var(--text-2);margin-top:4px;font-weight:500}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center}
.about-img-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.about-img-wrap img{width:100%;height:auto;transition:transform .6s var(--ease)}
.about-img-wrap:hover img{transform:scale(1.03)}
.about-content h2{font-size:2.2rem;font-weight:800;margin-bottom:16px;letter-spacing:-.3px}
.about-content p{color:var(--text-2);margin-bottom:16px}
.about-features{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.feature{display:flex;align-items:center;gap:10px;font-weight:500;font-size:.95rem}

/* Services */
.services-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.tab-btn{padding:10px 22px;border-radius:50px;border:1px solid var(--border);background:transparent;color:var(--text-2);font-family:var(--font);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s}
.tab-btn:hover{border-color:var(--border-hover);color:var(--text)}
.tab-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.services-showcase{position:relative;overflow:hidden}
.service-panel{display:none;grid-template-columns:1fr 1fr;gap:48px;align-items:center;animation:fadeIn .4s var(--ease)}
.service-panel.active{display:grid}
.service-img{border-radius:var(--radius);overflow:hidden;box-shadow:0 16px 40px rgba(0,0,0,.2)}
.service-img img{width:100%;height:360px;object-fit:cover;transition:transform .5s var(--ease)}
.service-panel:hover .service-img img{transform:scale(1.05)}
.service-info h3{font-size:1.8rem;font-weight:700;margin-bottom:12px;letter-spacing:-.3px}
.service-info p{color:var(--text-2);margin-bottom:24px;line-height:1.7}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;grid-auto-rows:1fr}
.gallery-item{position:relative;overflow:hidden;border-radius:var(--radius);cursor:pointer}
.gallery-item.large{grid-column:span 2;grid-row:span 2}
.gallery-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s var(--ease)}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-overlay{position:absolute;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.gallery-overlay span{color:#fff;font-weight:600;font-size:.9rem;border:1px solid rgba(255,255,255,.4);padding:8px 20px;border-radius:50px}
.gallery-item:hover .gallery-overlay{opacity:1}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.95);z-index:2000;display:none;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lb-img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:8px}
.lb-close,.lb-prev,.lb-next{position:absolute;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;padding:16px;transition:opacity .2s}
.lb-close{top:16px;right:24px;font-size:2.5rem}.lb-prev{left:24px;top:50%;transform:translateY(-50%);font-size:3rem}.lb-next{right:24px;top:50%;transform:translateY(-50%);font-size:3rem}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{opacity:.7}
.lb-counter{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.5);font-size:.85rem}

/* Testimonials */
.testimonial-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding-bottom:16px;scrollbar-width:none}
.testimonial-track::-webkit-scrollbar{display:none}
.testimonial-card{flex:0 0 340px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;backdrop-filter:blur(8px)}
.tc-header{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.tc-avatar{width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}
.tc-name{font-weight:600;font-size:.9rem}.tc-stars{color:var(--gold);font-size:.85rem;letter-spacing:2px}
.testimonial-card p{color:var(--text-2);font-style:italic;line-height:1.6;margin-bottom:12px}
.tc-theme{font-size:.75rem;color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.5px}

/* Testimonial Carousel Controls */
.testimonial-carousel-wrap{position:relative;display:flex;align-items:center;gap:12px}
.carousel-arrow{flex-shrink:0;width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .25s var(--ease);backdrop-filter:blur(8px);z-index:2}
.carousel-arrow:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-glow);transform:scale(1.08)}
.carousel-arrow:active{transform:scale(.95)}
.carousel-dots{display:flex;justify-content:center;gap:8px;margin-top:20px}
.carousel-dots .dot{width:10px;height:10px;border-radius:50%;background:var(--border);cursor:pointer;transition:all .25s var(--ease);border:none}
.carousel-dots .dot.active{background:var(--accent);transform:scale(1.2)}
.carousel-dots .dot:hover{background:var(--text-3)}

/* Map */
.map-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.contact-info h2{font-size:2rem;font-weight:800;margin-bottom:12px;letter-spacing:-.3px}
.contact-info>p{color:var(--text-2);margin-bottom:28px;line-height:1.7}
.contact-details{display:flex;flex-direction:column;gap:20px}
.cd-item{display:flex;gap:14px;align-items:flex-start}
.cd-item strong{display:block;font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-3);margin-bottom:2px}
.cd-item a,.cd-item span{color:var(--text);font-size:.95rem}
.contact-form-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px;backdrop-filter:blur(8px)}
.form-step{display:none}.form-step.active{display:block;animation:fadeIn .3s var(--ease)}
.form-step h3{font-size:1.3rem;font-weight:700;margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.82rem;font-weight:500;color:var(--text-2);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:var(--font);font-size:.95rem;outline:none;transition:border .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent)}
.form-group textarea{resize:vertical}
.form-success{text-align:center;padding:40px 0}.form-success h3{margin:16px 0 8px}.form-success p{color:var(--text-2)}

/* Floating CTA */
.floating-cta{position:fixed;bottom:28px;right:28px;background:var(--accent);color:#fff;padding:14px 24px;border-radius:50px;font-weight:600;font-size:.9rem;display:flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(37,99,235,.3);z-index:100;transform:translateY(100px);opacity:0;transition:all .4s var(--ease);text-decoration:none}
.floating-cta.visible{transform:translateY(0);opacity:1}
.floating-cta:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(37,99,235,.4)}

/* Footer */
.main-footer{background:var(--surface-solid);border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--text-2);font-size:.9rem;line-height:1.6}
.social-links{display:flex;gap:12px;margin-top:16px}
.social-links a{color:var(--text-3);transition:color .2s}.social-links a:hover{color:var(--accent)}
.footer-col h4{font-size:.9rem;font-weight:700;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;color:var(--text-2);font-size:.88rem;margin-bottom:8px;transition:color .2s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{margin-top:48px;padding:20px 0;border-top:1px solid var(--border);text-align:center}
.footer-bottom p{color:var(--text-3);font-size:.82rem}

/* Back to top */
.back-to-top{position:fixed;bottom:28px;left:28px;background:var(--surface-solid);border:1px solid var(--border);border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-2);z-index:100;transform:translateY(100px);opacity:0;transition:all .3s var(--ease)}
.back-to-top.visible{transform:translateY(0);opacity:1}
.back-to-top:hover{border-color:var(--accent);color:var(--accent)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s var(--ease),transform .7s var(--ease)}.reveal.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:1024px){.main-nav,.header-phone{display:none}.mobile-toggle{display:flex}.about-grid,.contact-grid{grid-template-columns:1fr}.service-panel.active{grid-template-columns:1fr}.stats-inner{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.hero h1{font-size:2.4rem}.section{padding:72px 0}.section-header h2{font-size:2rem}.gallery-grid{grid-template-columns:1fr 1fr}.gallery-item.large{grid-column:span 2;grid-row:span 1}.testimonial-card{flex:0 0 300px}}
@media(max-width:480px){.hero h1{font-size:1.8rem}.hero-cta{flex-direction:column;align-items:center}.stats-inner{grid-template-columns:1fr 1fr}.gallery-grid{grid-template-columns:1fr}.gallery-item.large{grid-column:span 1}.footer-grid{grid-template-columns:1fr}.floating-cta{bottom:16px;right:16px;padding:12px 20px;font-size:.82rem}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}