/* ===== RESET & BASE ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --red:#FF2D2D;
  --green:#00D26A;
  --blue:#2B7FFF;
  --primary:#00D26A;
  --primary-dark:#00B85C;
  --dark:#080C18;
  --dark2:#0F1524;
  --dark3:#1A2035;
  --gray:#6B7280;
  --gray-light:#9CA3AF;
  --white:#FFFFFF;
  --glass:rgba(255,255,255,0.04);
  --glass2:rgba(255,255,255,0.07);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 32px rgba(0,0,0,0.4);
  --font:'Inter',system-ui,-apple-system,sans-serif;
  --font-display:'Space Grotesk','Inter',sans-serif;
}
html{scroll-behavior:smooth;font-size:16px;overflow-x:hidden}
body{font-family:var(--font);background:var(--dark);color:var(--white);line-height:1.6;overflow-x:hidden;width:100%}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== PRELOADER ===== */
.preloader{position:fixed;inset:0;background:var(--dark);z-index:9999;display:flex;align-items:center;justify-content:center;transition:opacity .5s,visibility .5s}
.preloader.done{opacity:0;visibility:hidden;pointer-events:none}
.preloader-inner{display:flex;flex-direction:column;align-items:center;text-align:center}
.preloader-logo{height:48px;margin-bottom:20px;display:block}
.preloader-bar{width:200px;height:3px;background:var(--dark3);border-radius:4px;overflow:hidden}
.preloader-progress{height:100%;width:0;background:linear-gradient(90deg,var(--red),var(--green),var(--blue));border-radius:4px;animation:preload 1.5s ease forwards}
@keyframes preload{to{width:100%}}

/* ===== RGB GRADIENT HELPERS ===== */
.rgb-gradient{background:linear-gradient(135deg,var(--red),var(--green),var(--blue))}
.rgb-text{background:linear-gradient(135deg,var(--red),var(--green),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.rgb-border{border-image:linear-gradient(135deg,var(--red),var(--green),var(--blue)) 1}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;padding:16px 0;transition:all .3s}
.navbar.scrolled{background:rgba(8,12,24,0.95);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.05);padding:10px 0}
.nav-container{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:40px}
.nav-logo span{font-family:var(--font-display);font-size:1.4rem;font-weight:700;letter-spacing:1px}
.nav-menu{display:flex;gap:28px;align-items:center}
.nav-link{font-size:.9rem;font-weight:500;color:var(--gray-light);transition:color .3s;position:relative}
.nav-link:hover,.nav-link.active{color:var(--white)}
.nav-link.active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--red),var(--green),var(--blue));border-radius:2px}
.nav-cta{background:linear-gradient(135deg,var(--red),var(--green),var(--blue));padding:10px 24px;border-radius:50px;font-weight:600;font-size:.9rem;transition:transform .3s,box-shadow .3s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,210,106,0.25)}

/* Language Switcher */
.lang-switcher{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;background:var(--glass2);border:1px solid rgba(255,255,255,0.1);border-radius:8px;padding:6px 12px;color:var(--white);font-size:.82rem;font-weight:500;cursor:pointer;transition:border-color .3s}
.lang-btn:hover{border-color:var(--green)}
.lang-btn .flag{font-size:1rem}
.lang-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:var(--dark2);border:1px solid rgba(255,255,255,0.08);border-radius:10px;min-width:150px;padding:6px;display:none;box-shadow:var(--shadow)}
.lang-dropdown.show{display:block}
.lang-dropdown a{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:6px;font-size:.85rem;color:var(--gray-light);transition:all .2s}
.lang-dropdown a:hover,.lang-dropdown a.active{background:var(--glass2);color:var(--white)}
.lang-dropdown a .flag{font-size:1rem}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:5px}
.hamburger span{width:24px;height:2px;background:var(--white);border-radius:2px;transition:.3s}

/* ===== MOBILE MENU ===== */
.mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:998}
.mobile-overlay.show{display:block}
.mobile-menu{position:fixed;top:0;right:-300px;width:280px;height:100%;background:var(--dark2);z-index:999;transition:right .3s;padding:24px}
.mobile-menu.show{right:0}
.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}
.mobile-close{background:none;border:none;color:var(--white);font-size:2rem;cursor:pointer}
.mobile-menu-links{display:flex;flex-direction:column;gap:16px}
.mobile-menu-links a{font-size:1.1rem;font-weight:500;color:var(--gray-light);padding:8px 0;border-bottom:1px solid var(--dark3);transition:color .3s}
.mobile-menu-links a:hover{color:var(--green)}

/* ===== HERO ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:120px 0 80px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-gradient{position:absolute;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(255,45,45,0.08),transparent 50%),radial-gradient(ellipse at 50% 30%,rgba(0,210,106,0.08),transparent 50%),radial-gradient(ellipse at 80% 60%,rgba(43,127,255,0.08),transparent 50%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.015) 1px,transparent 1px);background-size:60px 60px}
.hero-content{position:relative;z-index:1;max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;background:var(--glass2);border:1px solid rgba(0,210,106,0.2);border-radius:50px;font-size:.85rem;color:var(--green);margin-bottom:24px}
.hero h1{font-family:var(--font-display);font-size:3.8rem;font-weight:800;line-height:1.1;margin-bottom:20px;letter-spacing:-1px}
.hero-desc{font-size:1.15rem;color:var(--gray-light);line-height:1.7;margin-bottom:36px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{background:linear-gradient(135deg,var(--red),var(--green),var(--blue));padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;transition:transform .3s,box-shadow .3s;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,210,106,0.25)}
.btn-outline{padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;border:1px solid rgba(255,255,255,0.2);transition:all .3s;display:inline-flex;align-items:center;gap:8px}
.btn-outline:hover{border-color:var(--green);color:var(--green)}
.hero-stats{display:flex;gap:40px;margin-top:48px}
.hero-stat .stat-num{font-family:var(--font-display);font-size:2rem;font-weight:700}
.hero-stat:nth-child(1) .stat-num{color:var(--red)}
.hero-stat:nth-child(2) .stat-num{color:var(--green)}
.hero-stat:nth-child(3) .stat-num{color:var(--blue)}
.hero-stat .stat-label{font-size:.85rem;color:var(--gray)}

/* ===== SECTIONS COMMON ===== */
section{padding:100px 0}
.section-header{text-align:center;margin-bottom:64px}
.section-tag{display:inline-block;padding:6px 18px;background:var(--glass2);border:1px solid rgba(0,210,106,0.15);border-radius:50px;font-size:.8rem;font-weight:600;color:var(--green);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:16px}
.section-title{font-family:var(--font-display);font-size:2.8rem;font-weight:800;letter-spacing:-1px;margin-bottom:16px}
.section-desc{font-size:1.05rem;color:var(--gray-light);max-width:600px;margin:0 auto}

/* ===== PRODUCT CATEGORY ===== */
.product-category{margin-bottom:80px}
.category-header{display:flex;align-items:center;gap:16px;margin-bottom:36px;padding-left:4px}
.category-line{width:4px;height:36px;border-radius:2px}
.cat-box .category-line{background:var(--red)}
.cat-air .category-line{background:var(--green)}
.cat-area .category-line{background:var(--blue)}
.cat-fan .category-line{background:linear-gradient(180deg,var(--red),var(--blue))}
.category-header h3{font-family:var(--font-display);font-size:1.8rem;font-weight:700}
.category-header p{font-size:.95rem;color:var(--gray-light)}

/* ===== PRODUCT CARDS ===== */
.products-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.products-grid.grid-4{grid-template-columns:repeat(4,1fr)}
.product-card{background:var(--dark2);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);overflow:hidden;transition:transform .4s,box-shadow .4s}
.product-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px rgba(0,210,106,0.08)}
.product-img{position:relative;height:260px;overflow:hidden;background:var(--dark3)}
.product-img img{width:100%;height:100%;object-fit:contain;transition:transform .5s;padding:8px}
.product-card:hover .product-img img{transform:scale(1.05)}
.product-body{padding:24px}
.product-tag{display:inline-block;padding:4px 14px;border-radius:50px;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}
.product-tag.tag-red{background:rgba(255,45,45,0.1);border:1px solid rgba(255,45,45,0.2);color:var(--red)}
.product-tag.tag-green{background:rgba(0,210,106,0.1);border:1px solid rgba(0,210,106,0.2);color:var(--green)}
.product-tag.tag-blue{background:rgba(43,127,255,0.1);border:1px solid rgba(43,127,255,0.2);color:var(--blue)}
.product-tag.tag-purple{background:rgba(139,92,246,0.1);border:1px solid rgba(139,92,246,0.2);color:#8B5CF6}
.product-body h3{font-family:var(--font-display);font-size:1.3rem;font-weight:700;margin-bottom:8px}
.product-body p{color:var(--gray-light);font-size:.9rem;line-height:1.7;margin-bottom:16px}
.product-features{list-style:none;display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.product-features li{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--gray-light)}
.product-features li i{color:var(--green);font-size:.75rem}
.product-link{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:600;font-size:.88rem;transition:gap .3s}
.product-link:hover{gap:12px}

/* Single product full-width */
.product-single{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;background:var(--dark2);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);overflow:hidden;padding:32px}
.product-single .product-img{height:320px;border-radius:var(--radius-sm)}
.product-single .product-body{padding:0}

/* ===== VIDEO SECTION ===== */
.videos-section{background:var(--dark2)}
.videos-grid{display:grid;grid-template-columns:1fr;gap:24px;max-width:800px;margin:0 auto}
.video-card{border-radius:var(--radius);overflow:hidden;background:var(--dark3);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.video-card iframe{width:100%;max-width:100%;aspect-ratio:16/9;border:0;display:block}
.video-card .video-title{padding:12px 16px;font-size:.85rem;font-weight:500;color:var(--gray-light)}

/* ===== ABOUT / TECHNOLOGY ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-img{border-radius:var(--radius);overflow:hidden;position:relative}
.about-img img{width:100%;border-radius:var(--radius)}
.about-text h3{font-family:var(--font-display);font-size:2.2rem;font-weight:700;margin-bottom:20px;letter-spacing:-0.5px}
.about-text p{color:var(--gray-light);font-size:1rem;line-height:1.8;margin-bottom:16px}
.tech-features{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.tech-feat{display:flex;align-items:flex-start;gap:14px;padding:16px;background:var(--glass);border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,0.04)}
.tech-feat i{font-size:1.3rem;margin-top:2px}
.tech-feat:nth-child(1) i{color:var(--red)}
.tech-feat:nth-child(2) i{color:var(--green)}
.tech-feat:nth-child(3) i{color:var(--blue)}
.tech-feat:nth-child(4) i{color:#8B5CF6}
.tech-feat h4{font-size:.95rem;font-weight:600;margin-bottom:4px}
.tech-feat p{font-size:.82rem;color:var(--gray)}

/* ===== USE CASES ===== */
.usecases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.usecase-card{background:var(--dark2);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:32px;text-align:center;transition:transform .3s,border-color .3s}
.usecase-card:hover{transform:translateY(-4px);border-color:rgba(0,210,106,0.2)}
.usecase-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.5rem}
.usecase-card:nth-child(3n+1) .usecase-icon{background:rgba(255,45,45,0.1);color:var(--red)}
.usecase-card:nth-child(3n+2) .usecase-icon{background:rgba(0,210,106,0.1);color:var(--green)}
.usecase-card:nth-child(3n+3) .usecase-icon{background:rgba(43,127,255,0.1);color:var(--blue)}
.usecase-card h4{font-family:var(--font-display);font-size:1.1rem;font-weight:600;margin-bottom:8px}
.usecase-card p{font-size:.88rem;color:var(--gray-light);line-height:1.6}

/* ===== CTA SECTION ===== */
.cta-section{background:linear-gradient(135deg,rgba(255,45,45,0.06),rgba(0,210,106,0.06),rgba(43,127,255,0.06));border:1px solid rgba(0,210,106,0.1);border-radius:var(--radius);padding:80px 48px;text-align:center;max-width:100%;box-sizing:border-box}
.cta-section h2{font-family:var(--font-display);font-size:2.5rem;font-weight:800;margin-bottom:16px}
.cta-section p{color:var(--gray-light);font-size:1.05rem;max-width:500px;margin:0 auto 32px}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-info h3{font-family:var(--font-display);font-size:1.8rem;font-weight:700;margin-bottom:16px}
.contact-info>p{color:var(--gray-light);margin-bottom:32px}
.contact-item{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px}
.contact-item i{width:44px;height:44px;border-radius:12px;background:var(--glass2);border:1px solid rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.contact-item:nth-child(1) i{color:var(--red)}
.contact-item:nth-child(2) i{color:var(--green)}
.contact-item:nth-child(3) i{color:var(--blue)}
.contact-item h4{font-size:.95rem;font-weight:600;margin-bottom:2px}
.contact-item p{font-size:.88rem;color:var(--gray-light)}
.contact-form{background:var(--dark2);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:36px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:6px;color:var(--gray-light)}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;background:var(--dark3);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius-sm);color:var(--white);font-family:var(--font);font-size:.95rem;transition:border-color .3s}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--green)}
.form-group textarea{resize:vertical;min-height:100px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-submit{width:100%;padding:14px;background:linear-gradient(135deg,var(--red),var(--green),var(--blue));border:none;border-radius:50px;color:var(--white);font-weight:600;font-size:1rem;cursor:pointer;transition:transform .3s,box-shadow .3s;display:flex;align-items:center;justify-content:center;gap:8px}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,210,106,0.25)}

/* ===== FOOTER ===== */
.footer{background:var(--dark2);border-top:1px solid rgba(255,255,255,0.05);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .nav-logo{font-size:1.4rem;margin-bottom:12px;display:inline-flex}
.footer-brand p{color:var(--gray);font-size:.88rem;line-height:1.7;max-width:280px}
.footer-col h4{font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px;color:var(--gray-light)}
.footer-col a{display:block;font-size:.88rem;color:var(--gray);margin-bottom:10px;transition:color .3s}
.footer-col a:hover{color:var(--green)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.05);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--gray)}
.footer-bottom a{color:var(--gray-light);margin-left:20px;transition:color .3s}
.footer-bottom a:hover{color:var(--green)}

/* ===== ANIMATIONS ===== */
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:none}

/* ===== RTL SUPPORT ===== */
[dir="rtl"] .hero-content{text-align:right}
[dir="rtl"] .hero-stats{justify-content:flex-end}
[dir="rtl"] .category-header{padding-left:0;padding-right:4px}
[dir="rtl"] .product-features li{flex-direction:row-reverse}
[dir="rtl"] .contact-item{flex-direction:row-reverse}
[dir="rtl"] .footer-bottom{flex-direction:row-reverse}

/* ===== RESPONSIVE ===== */
@media(max-width:992px){
  .hero h1{font-size:2.8rem}
  .products-grid,.products-grid.grid-4{grid-template-columns:repeat(2,1fr)}
  .product-single{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .usecases-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .tech-features{grid-template-columns:1fr}
  .videos-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .nav-menu{display:none}
  .nav-cta{display:none}
  .hamburger{display:flex}
  .hero{padding:100px 0 60px}
  .hero h1{font-size:2.2rem}
  .section-title{font-size:2rem}
  .hero-stats{flex-direction:column;gap:20px}
  .products-grid,.products-grid.grid-4{grid-template-columns:1fr}
  .usecases-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .cta-section{padding:48px 24px}
}