:root{--primary: #10B981;--primary-dark: #047857;--bg-color: #0F172A;--text-color: #F8FAFC;--secondary-bg: #1E293B;--border-color: #334155}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol;background-color:var(--bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none;font-weight:500;transition:color .2s ease}a:hover{text-decoration:underline}.header{display:flex;justify-content:space-between;align-items:center;padding:1rem 3rem;background-color:var(--secondary-bg);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100}.logo{font-size:1.5rem;font-weight:800;letter-spacing:1px;color:var(--primary)}.nav{display:flex;align-items:center;gap:2rem}.nav a{color:var(--text-color)}.nav a:hover{color:var(--primary)}.btn{background-color:transparent;color:var(--text-color);border:1px solid transparent;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-weight:600;transition:all .2s ease}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-primary.outlined{background-color:transparent;border-color:var(--primary);color:var(--primary)}.btn-primary.outlined:hover{background-color:var(--primary);color:#fff}.btn.large{padding:.75rem 2rem;font-size:1.125rem}.hero{padding:6rem 2rem;text-align:center;background:linear-gradient(180deg,var(--bg-color) 0%,var(--secondary-bg) 100%)}.hero h1{font-size:3.5rem;font-weight:800;margin-bottom:1rem}.hero p{font-size:1.25rem;color:#94a3b8;max-width:600px;margin:0 auto 2.5rem;line-height:1.6}.hero-actions{display:flex;justify-content:center;gap:1rem}.features{padding:4rem 2rem;background-color:var(--bg-color)}.features h2{text-align:center;margin-bottom:3rem;font-size:2.25rem}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;max-width:1200px;margin:0 auto}.feature-card{background-color:var(--secondary-bg);padding:2rem;border-radius:8px;border:1px solid var(--border-color);transition:transform .2s ease}.feature-card:hover{transform:translateY(-5px)}.feature-card h3{margin-top:0;color:var(--primary);font-size:1.25rem}.feature-card p{color:#94a3b8;line-height:1.5;margin-bottom:0}.footer{text-align:center;padding:3rem 1rem;background-color:var(--secondary-bg);border-top:1px solid var(--border-color);color:#64748b}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:radial-gradient(circle at top right,rgba(16,185,129,.1) 0%,transparent 40%),radial-gradient(circle at bottom left,rgba(0,168,255,.1) 0%,transparent 40%)}.auth-card{width:100%;max-width:440px;background:rgba(30,41,59,.95);padding:2.5rem;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 20px 40px #00000080;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.auth-card h2{font-size:2rem;margin-bottom:.5rem;color:#fff}.auth-card p{color:#94a3b8;margin-bottom:2rem}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;font-weight:500;color:#cbd5e1}.form-group input{padding:.8rem 1rem;border-radius:8px;background:rgba(15,23,42,.5);border:1px solid var(--border-color);color:#fff;font-family:inherit;transition:all .2s ease}.form-group input:focus{outline:none;border-color:var(--primary);background:rgba(15,23,42,.8)}.error-message{background:rgba(239,68,68,.1);color:#ef4444;padding:.8rem;border-radius:8px;margin-bottom:1.5rem;font-size:.9rem;border:1px solid rgba(239,68,68,.2)}.full-width{width:100%;margin-top:1rem}.auth-footer{margin-top:1.5rem;text-align:center;font-size:.9rem}.auth-footer a{color:var(--primary);text-decoration:none;font-weight:500}.dashboard-layout{min-height:100vh;display:flex;flex-direction:column}.dashboard-nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:rgba(15,23,42,.8);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-profile{display:flex;align-items:center;gap:1.5rem;font-weight:500}.dashboard-content{flex:1;padding:3rem 2rem;max-width:1200px;margin:0 auto;width:100%}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem}.dashboard-header h1{font-size:2.5rem;font-weight:700}.dashboard-grid{display:grid;grid-template-columns:2fr 1fr;gap:2rem}.dashboard-card{background:rgba(30,41,59,.5);border-radius:16px;border:1px solid var(--border-color);padding:1.5rem}.dashboard-card h2{font-size:1.25rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color);color:#fff}.empty-state{text-align:center;padding:3rem 1rem;color:#94a3b8;background:rgba(15,23,42,.4);border-radius:8px;border:1px dashed var(--border-color)}.friends-list{display:flex;flex-direction:column;gap:1rem}.friend-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:rgba(255,255,255,.03);border-radius:8px;border:1px solid var(--border-color)}.friend-info{display:flex;flex-direction:column}.friend-name{font-weight:600;color:#fff}.friend-email{font-size:.85rem;color:#94a3b8}.friend-actions{display:flex;gap:.5rem}.btn.small{padding:.4rem .8rem;font-size:.85rem}.btn.danger{background:rgba(239,68,68,.1);color:#ef4444;border:1px solid rgba(239,68,68,.4)}.btn.danger:hover{background:rgba(239,68,68,.2)}.btn.success{background:rgba(16,185,129,.1);color:#10b981;border:1px solid rgba(16,185,129,.4)}.btn.success:hover{background:rgba(16,185,129,.2)}.search-bar{display:flex;gap:.5rem;margin-bottom:1.5rem}.search-bar input{flex:1;padding:.7rem 1rem;border-radius:8px;background:rgba(15,23,42,.5);border:1px solid var(--border-color);color:#fff}