:root{--primary: #1f9ed9;--primary-hover: #33b5f0;--bg-dark: #0f172a;--bg-card: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border: rgba(255, 255, 255, .15);--success: #10b981;--danger: #ef4444;--transition: all .2s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background-color:var(--bg-dark);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.container{max-width:1280px;margin:0 auto;padding:0 1.5rem}button{cursor:pointer;font-family:inherit}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem}.app-container{min-height:100vh;background-color:var(--bg-dark);color:var(--text-main)}.py-12{padding-top:3rem;padding-bottom:3rem}.mb-12,.header-section{margin-bottom:3rem}.title{font-size:2.5rem;font-weight:800;margin-bottom:1rem}.subtitle{color:var(--text-muted);font-size:1.125rem}.btn-cyan{background:var(--primary);color:#fff;padding:.5rem 1rem;border-radius:.5rem;font-weight:600;border:none;transition:var(--transition)}.btn-cyan:hover{background:var(--primary-hover)}.pro-navbar{background:var(--bg-card);border-bottom:1px solid var(--border);padding:.75rem 0;position:sticky;top:0;z-index:1000}.nav-container{display:flex;justify-content:space-between;align-items:center}.nav-links{display:flex;gap:2rem}.nav-links a{color:var(--text-muted);font-size:.95rem;font-weight:500}.nav-links a:hover{color:var(--text-main)}.nav-actions{display:flex;align-items:center}.theme-toggle{background:none;border:none;font-size:1.2rem;padding:.5rem;border-radius:.5rem}.theme-toggle:hover{background:#ffffff0d}@media(max-width:768px){.nav-links{display:none}}.flex{display:flex}.items-center{align-items:center}.gap-2{gap:.5rem}.gap-4{gap:1rem}.font-bold{font-weight:700}.text-xs{font-size:.75rem}.text-xl{font-size:1.25rem}.tracking-tight{letter-spacing:-.025em}.ml-4{margin-left:1rem}