/* ============================================
   EWNET Premium ISP Design System v2.0
   Glassmorphism + Dark/Light + Micro-animations
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --primary: #0ea5e9; --primary-dark: #0284c7; --accent: #6366f1;
    --dark-bg: #0f172a; --dark-surface: #1e293b; --dark-card: #1e293b;
    --light-bg: #f8fafc; --light-surface: #ffffff;
    --text-primary: #0f172a; --text-secondary: #475569; --text-light: #e2e8f0;
    --border: rgba(255,255,255,0.1); --border-light: #e2e8f0;
    --glass: rgba(255,255,255,0.05); --glass-border: rgba(255,255,255,0.08);
    --blur: blur(16px); --radius: 16px; --container: 1280px;
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    --shadow: 0 20px 40px rgba(0,0,0,0.08);
    --glow: 0 0 40px rgba(14,165,233,0.15);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,sans-serif;line-height:1.7;color:var(--text-primary);background:var(--light-bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul{list-style:none}

/* Typography */
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.15;letter-spacing:-0.02em}
h1{font-size:clamp(2.5rem,5vw,4.5rem)}
h2{font-size:clamp(2rem,4vw,3rem);margin-bottom:1rem}
h3{font-size:1.5rem}
p{color:var(--text-secondary);margin-bottom:1rem}
.section-subtitle{color:var(--primary);font-weight:700;text-transform:uppercase;letter-spacing:0.1em;font-size:0.85rem;margin-bottom:0.5rem;display:block}

/* Layout */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:100px 0;position:relative}
.dark-section{background:var(--dark-bg);color:white}
.dark-section p,.dark-section h2,.dark-section h3{color:white}
.dark-section .text-muted{color:var(--text-light);opacity:0.8}

/* Top Bar */
.top-bar{background:var(--dark-bg);color:var(--text-light);font-size:0.8rem;padding:8px 0;border-bottom:1px solid var(--glass-border)}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.top-bar a{color:var(--text-light);opacity:0.8}
.top-bar a:hover{opacity:1;color:var(--primary)}
.top-bar-links{display:flex;gap:20px;align-items:center}

/* Sticky Nav */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;transition:var(--transition);padding:16px 0}
.navbar.scrolled{background:rgba(15,23,42,0.95);backdrop-filter:var(--blur);padding:10px 0;border-bottom:1px solid var(--glass-border)}
.navbar.has-topbar{top:36px}
.nav-inner{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:1.6rem;font-weight:900;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:white;font-weight:500;font-size:0.9rem;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary);transition:var(--transition)}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;gap:12px;align-items:center}
.mobile-toggle{display:none;background:none;border:none;color:white;font-size:1.5rem;cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:0.95rem;cursor:pointer;transition:var(--transition);border:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:white;box-shadow:0 4px 20px rgba(14,165,233,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(14,165,233,0.5)}
.btn-outline{background:transparent;color:white;border:1px solid rgba(255,255,255,0.3)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:white}
.btn-sm{padding:10px 24px;font-size:0.85rem}
.btn-dark{background:var(--dark-bg);color:white}
.btn-dark:hover{background:var(--dark-surface)}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#0f172a 0%,#1e1b4b 50%,#0f172a 100%);color:white;position:relative;overflow:hidden;padding-top:120px}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(14,165,233,0.15),transparent 70%);border-radius:50%;animation:pulse 8s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(99,102,241,0.1),transparent 70%);border-radius:50%;animation:pulse 10s ease-in-out infinite reverse}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero h1{margin-bottom:1.5rem;background:linear-gradient(135deg,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:1.25rem;color:var(--text-light);margin-bottom:2.5rem;max-width:550px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:3rem}
.hero-stats{display:flex;gap:40px;padding-top:2rem;border-top:1px solid var(--glass-border)}
.hero-stat-value{font-size:2rem;font-weight:800;color:var(--primary)}
.hero-stat-label{font-size:0.85rem;color:var(--text-light);opacity:0.7}

/* Speed Checker Widget */
.speed-checker{background:var(--glass);backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--radius);padding:40px;margin-top:-60px;position:relative;z-index:10;max-width:900px;margin-left:auto;margin-right:auto}
.speed-checker h3{color:white;margin-bottom:8px}
.speed-checker p{color:var(--text-light);opacity:0.8;margin-bottom:24px}
.checker-form{display:flex;gap:12px;flex-wrap:wrap}
.checker-input{flex:1;min-width:250px;padding:16px 24px;border-radius:50px;border:1px solid var(--glass-border);background:rgba(255,255,255,0.08);color:white;font-size:1rem;outline:none;transition:var(--transition)}
.checker-input::placeholder{color:rgba(255,255,255,0.4)}
.checker-input:focus{border-color:var(--primary);background:rgba(255,255,255,0.12)}

/* Cards */
.card{background:var(--light-surface);border-radius:var(--radius);padding:32px;border:1px solid var(--border-light);transition:var(--transition);position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(14,165,233,0.1),rgba(99,102,241,0.1));display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px}
.glass-card{background:var(--glass);backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--radius);padding:32px;color:white;transition:var(--transition)}
.glass-card:hover{border-color:var(--primary);box-shadow:var(--glow)}

/* Grid Layouts */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}

/* Pricing Cards */
.pricing-card{background:var(--glass);backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--radius);padding:40px 32px;color:white;text-align:center;transition:var(--transition);position:relative}
.pricing-card.popular{border-color:var(--primary);box-shadow:var(--glow)}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--primary),var(--accent));padding:6px 20px;border-radius:20px;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em}
.pricing-speed{font-size:3rem;font-weight:900;margin:16px 0;background:linear-gradient(135deg,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.pricing-price{font-size:1.5rem;font-weight:700;margin-bottom:24px}
.pricing-price span{font-size:0.9rem;font-weight:400;opacity:0.7}
.pricing-features{text-align:left;margin-bottom:32px}
.pricing-features li{padding:8px 0;border-bottom:1px solid var(--glass-border);font-size:0.9rem;color:var(--text-light)}
.pricing-features li:last-child{border:none}

/* Stats Counter */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;text-align:center}
.stat-value{font-size:3rem;font-weight:900;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:4px}
.stat-label{font-size:0.9rem;opacity:0.7}

/* Testimonials */
.testimonial-card{background:var(--light-surface);border-radius:var(--radius);padding:32px;border:1px solid var(--border-light)}
.testimonial-stars{color:#fbbf24;margin-bottom:12px;font-size:1.1rem}
.testimonial-text{font-style:italic;font-size:1.05rem;margin-bottom:20px;color:var(--text-primary)}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:white;font-weight:700;font-size:1.1rem}

/* FAQ Accordion */
.faq-item{border:1px solid var(--border-light);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item[open]{border-color:var(--primary);box-shadow:0 4px 20px rgba(14,165,233,0.08)}
.faq-summary{padding:20px 24px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;background:var(--light-surface)}
.faq-summary::-webkit-details-marker{display:none}
.faq-summary::after{content:'+';font-size:1.3rem;color:var(--primary);transition:var(--transition)}
.faq-item[open] .faq-summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px 20px;color:var(--text-secondary);line-height:1.8}

/* Partners Carousel */
.partners-track{display:flex;gap:48px;align-items:center;justify-content:center;flex-wrap:wrap;opacity:0.6}
.partner-logo{font-size:1.2rem;font-weight:700;color:var(--text-secondary);padding:16px 24px;border:1px solid var(--border-light);border-radius:12px;transition:var(--transition)}
.partner-logo:hover{opacity:1;border-color:var(--primary);color:var(--primary)}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info-item{display:flex;gap:16px;margin-bottom:24px}
.contact-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(14,165,233,0.1),rgba(99,102,241,0.1));display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;padding:16px;border:1px solid var(--border-light);border-radius:12px;font-size:1rem;font-family:inherit;margin-bottom:16px;transition:var(--transition);background:var(--light-surface)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,0.1)}

/* CTA Banner */
.cta-banner{background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius);padding:60px;text-align:center;color:white;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:-50%;right:-20%;width:400px;height:400px;background:rgba(255,255,255,0.1);border-radius:50%}
.cta-banner h2{color:white;margin-bottom:16px}
.cta-banner p{color:rgba(255,255,255,0.9);font-size:1.1rem;margin-bottom:32px}
.cta-banner .btn{background:white;color:var(--primary)}
.cta-banner .btn:hover{background:var(--light-bg)}

/* Footer */
.footer{background:var(--dark-bg);color:var(--text-light);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand p{opacity:0.7;margin-top:16px;font-size:0.9rem}
.footer h4{color:white;margin-bottom:20px;font-size:1rem}
.footer ul li{margin-bottom:10px}
.footer ul a{opacity:0.7;font-size:0.9rem}
.footer ul a:hover{opacity:1;color:var(--primary)}
.footer-bottom{border-top:1px solid var(--glass-border);padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:0.85rem;opacity:0.6}

/* Animations */
@keyframes pulse{0%,100%{transform:scale(1);opacity:0.5}50%{transform:scale(1.1);opacity:0.8}}
.fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* Back to Top */
.back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;background:var(--primary);color:white;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:var(--transition);z-index:999;border:none;box-shadow:0 4px 20px rgba(14,165,233,0.4)}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}

/* Responsive */
@media(max-width:1024px){
    .grid-4{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
    .nav-links,.nav-actions{display:none}
    .mobile-toggle{display:block}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    .hero{padding-top:100px;min-height:auto;padding-bottom:80px}
    .hero-stats{flex-direction:column;gap:20px}
    .speed-checker{margin-top:0;padding:24px}
    .checker-form{flex-direction:column}
    section{padding:60px 0}
    .footer-grid{grid-template-columns:1fr}
    .top-bar-links{display:none}
    .navbar.has-topbar{top:0}
}