@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap");:root{--background:#0b0f19;--card-bg:#151d30;--card-border:#232e48;--primary:#2563eb;--primary-hover:#3b82f6;--accent:#14b8a6;--text-main:#f8fafc;--text-muted:#94a3b8;--error:#ef4444;--success:#10b981}body{background-color:var(--background);color:var(--text-main);font-family:Outfit,sans-serif;margin:0;padding:0;line-height:1.6}a{color:var(--primary-hover);text-decoration:none;transition:color .2s ease}a:hover{color:var(--accent)}.shell-container{display:flex;min-height:100vh;flex-direction:column}.shell-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:var(--card-bg);border-bottom:1px solid var(--card-border)}.shell-brand{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#3b82f6,#14b8a6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.shell-nav{display:flex;gap:1.5rem}.shell-main{flex:1 1;padding:3rem 2rem;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.card{background-color:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:2rem;margin-top:1.5rem;box-shadow:0 4px 20px rgba(0,0,0,.25);transition:transform .2s ease,border-color .2s ease}.card:hover{transform:translateY(-2px);border-color:var(--primary)}.btn{background-color:var(--primary);color:var(--text-main);padding:.75rem 1.5rem;border:none;border-radius:6px;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .1s ease}.btn:hover{background-color:var(--primary-hover)}.btn:active{transform:scale(.98)}.error-text{color:var(--error);font-size:.875rem;margin-top:.5rem}.nav-link{font-weight:500;color:var(--text-muted)}.nav-link.active,.nav-link:hover{color:var(--text-main)}