/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg: #0f172a; --bg-secondary: #1e293b;
  --text: #f1f5f9; --text-muted: #94a3b8;
  --primary: #6366f1; --primary-hover: #818cf8;
  --accent: #06b6d4; --accent2: #8b5cf6;
  --card-bg: #1e293b; --card-border: #334155;
  --success: #22c55e; --danger: #ef4444; --warning: #f59e0b;
  --radius: 8px; --radius-lg: 12px;
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:var(--primary-hover);text-decoration:none}
a:hover{color:var(--primary)}

/* ========== Navbar ========== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(15,23,42,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--card-border)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-brand{font-size:1.25rem;font-weight:700;color:var(--text)}
.nav-brand span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:1.5rem;align-items:center;list-style:none}
.nav-links a{color:var(--text-muted);font-size:.9rem;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

/* ========== Hero ========== */
.hero{padding:8rem 1.5rem 5rem;text-align:center;background:linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%)}
.hero-content{max-width:800px;margin:0 auto}
.hero h1{font-size:2.8rem;font-weight:800;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:1.15rem;color:var(--text-muted);margin-bottom:2rem}
.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:3rem;justify-content:center;margin-top:3rem;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-num{display:block;font-size:2rem;font-weight:800;color:var(--accent)}
.stat-label{font-size:.85rem;color:var(--text-muted)}

/* ========== Buttons ========== */
.btn{display:inline-block;padding:.65rem 1.5rem;border-radius:var(--radius);font-size:.9rem;font-weight:600;border:none;cursor:pointer;transition:all .2s;text-align:center}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.btn-lg{padding:.85rem 2.2rem;font-size:1rem;border-radius:var(--radius-lg)}

/* ========== Sections ========== */
.section{padding:4rem 1.5rem}
.section-title{text-align:center;font-size:2rem;font-weight:700;margin-bottom:.5rem}
.section-desc{text-align:center;color:var(--text-muted);margin-bottom:2.5rem}

/* ========== Features Grid ========== */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));gap:1.5rem;max-width:1100px;margin:0 auto}
.feature-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:2rem 1.5rem;text-align:center;transition:transform .2s, box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(99,102,241,.15)}
.feature-icon{font-size:2.5rem;margin-bottom:1rem}
.feature-card h3{font-size:1.1rem;margin-bottom:.5rem}
.feature-card p{color:var(--text-muted);font-size:.9rem;line-height:1.6}

/* ========== Platforms ========== */
.platforms-section{background:var(--bg-secondary)}
.platform-grid{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;max-width:900px;margin:0 auto}
.platform-badge{background:var(--card-bg);border:1px solid var(--card-border);padding:.4rem 1rem;border-radius:2rem;font-size:.85rem;color:var(--text-muted);transition:border-color .2s}
.platform-badge:hover{border-color:var(--primary);color:var(--text)}

/* ========== Pricing ========== */
.pricing-grid,.pricing-full{display:grid;grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));gap:1.5rem;max-width:1100px;margin:0 auto}
.pricing-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:2rem 1.5rem;text-align:center;position:relative;transition:transform .2s, box-shadow .2s}
.pricing-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(99,102,241,.15)}
.pricing-card.featured{border-color:var(--primary);box-shadow:0 0 20px rgba(99,102,241,.2)}
.pricing-card .popular{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;padding:.2rem 1rem;border-radius:1rem;font-size:.75rem;font-weight:600}
.pricing-card h3{font-size:1.2rem;margin-bottom:.5rem}
.pricing-card .price{font-size:2.2rem;font-weight:800;margin:.5rem 0}
.pricing-card .price span{font-size:.9rem;font-weight:400;color:var(--text-muted)}
.pricing-card .features-list{list-style:none;margin:1.5rem 0;text-align:left}
.pricing-card .features-list li{padding:.4rem 0;color:var(--text-muted);font-size:.9rem}
.pricing-card .features-list li::before{content:'✓';color:var(--success);margin-right:.5rem}
.pricing-card .btn{margin-top:1rem;width:100%}

/* ========== FAQ ========== */
.faq{background:var(--bg-secondary)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{margin-bottom:.75rem}
.faq-question{width:100%;text-align:left;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius);padding:1rem 1.25rem;font-size:.95rem;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:border-color .2s}
.faq-question:hover{border-color:var(--primary)}
.faq-question::after{content:'+';font-size:1.2rem;color:var(--text-muted)}
.faq-question.open::after{content:'−'}
.faq-answer{display:none;padding:1rem 1.25rem;color:var(--text-muted);font-size:.9rem;line-height:1.6}
.faq-answer.show{display:block;background:var(--card-bg);border:1px solid var(--card-border);border-top:none;border-radius:0 0 var(--radius) var(--radius)}

/* ========== CTA ========== */
.cta{text-align:center;padding:5rem 1.5rem;background:linear-gradient(135deg,#1e1b4b,#0f172a)}
.cta h2{font-size:2rem;margin-bottom:.5rem}
.cta p{color:var(--text-muted);margin-bottom:2rem}

/* ========== Footer ========== */
.footer{background:var(--bg);border-top:1px solid var(--card-border);padding:2.5rem 1.5rem 1.5rem}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:2rem}
.footer-col h4{font-size:.95rem;margin-bottom:1rem}
.footer-col a,.footer-col p{display:block;color:var(--text-muted);font-size:.85rem;margin-bottom:.5rem}
.footer-bottom{text-align:center;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--card-border);color:var(--text-muted);font-size:.8rem}

/* ========== Auth ========== */
.auth-section{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:6rem 1.5rem 2rem}
.auth-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:2.5rem;width:100%;max-width:420px}
.auth-card h2{text-align:center;margin-bottom:.25rem}
.auth-subtitle{text-align:center;color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem}
.auth-footer{text-align:center;margin-top:1.25rem;font-size:.85rem;color:var(--text-muted)}
.form-group{margin-bottom:1rem}
.form-group label{display:block;margin-bottom:.35rem;font-size:.85rem;color:var(--text-muted)}
.form-group input{width:100%;padding:.65rem .75rem;background:var(--bg);border:1px solid var(--card-border);border-radius:var(--radius);color:var(--text);font-size:.9rem;outline:none;transition:border-color .2s}
.form-group input:focus{border-color:var(--primary)}
.form-group input::placeholder{color:var(--text-muted);opacity:.5}

/* ========== Help & Legal ========== */
.help-content,.legal-content{max-width:800px;margin:0 auto}
.help-content h3,.legal-content h3{font-size:1.1rem;margin:1.5rem 0 .5rem}
.help-content p,.legal-content p{color:var(--text-muted);margin-bottom:.75rem;font-size:.9rem;line-height:1.7}

/* ========== Utilities ========== */
.text-center{text-align:center}

/* ========== Responsive ========== */
@media (max-width:768px){
  .hero h1{font-size:2rem}
  .hero-stats{gap:1.5rem}
  .stat-num{font-size:1.5rem}
  .nav-links{display:none;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:var(--bg);padding:1.5rem;border-bottom:1px solid var(--card-border)}
  .nav-links.active{display:flex}
  .menu-toggle{display:block}
}