:root{--bg: #0b0f17;--card: #121826;--muted: #8b9bb4;--text: #e8eefb;--accent: #5b8cff;--accent-2: #4ad6b8;--error: #ff6574;--success: #10b981;--radius: 16px;--shadow: 0 10px 30px rgba(0, 0, 0, .35)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 10% 0%,#0f1626,#0b0f17 60%);font:16px/1.45 system-ui,Segoe UI,Roboto,Arial;color:var(--text);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:40px 16px}.btn{padding:12px 24px;border-radius:12px;border:none;font-weight:600;font-size:14px;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:linear-gradient(90deg,var(--accent),#7a9cff 60%);color:#fff}.btn-secondary{background:#ffffff0d;color:var(--text);border:1px solid rgba(255,255,255,.1)}.btn-success{background:var(--success);color:#fff}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{opacity:.6;cursor:not-allowed}.loading{opacity:.6;pointer-events:none}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;right:16px;bottom:16px;background:var(--card);border:1px solid rgba(255,255,255,.12);padding:12px 16px;border-radius:12px;opacity:0;transform:translateY(12px);transition:all .3s;max-width:300px;z-index:1000}.toast.show{opacity:1;transform:translateY(0)}.toast.success{border-color:var(--success);background:#10b9811a}.toast.error{border-color:var(--error);background:#ff65741a}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:600;color:var(--text)}.form-input{width:100%;padding:12px 16px;border:1px solid rgba(255,255,255,.1);border-radius:8px;background:#ffffff0d;color:var(--text);font-size:14px}.form-input:focus{outline:none;border-color:var(--accent);background:#ffffff14}.error-message{color:var(--error);font-size:12px;margin-top:4px;display:none}.error-message.show{display:block}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;border:1px solid rgba(255,255,255,.05)}.icon-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:var(--text);cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;justify-content:center}.icon-btn:hover{background:#ffffff1a;border-color:#fff3}.icon-btn:active{transform:scale(.95)}.toggle-btn{background:transparent;border:none;color:var(--muted);cursor:pointer;padding:4px;display:inline-flex;align-items:center;justify-content:center;transition:all .2s;border-radius:4px}.toggle-btn:hover{background:#ffffff0d;color:var(--text)}.toggle-btn.expanded svg{transform:rotate(180deg)}.login-container{max-width:400px;margin:80px auto;padding:0 16px}.login-header{text-align:center;margin-bottom:40px}.login-header h1{font-size:28px;margin:0 0 8px;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-header p{color:var(--muted);margin:0;font-size:16px}.tabs{display:flex;margin-bottom:32px;background:#ffffff0d;border-radius:12px;padding:4px}.tab-button{flex:1;padding:12px;border:none;background:transparent;color:var(--muted);border-radius:8px;cursor:pointer;transition:all .2s;font-weight:500}.tab-button.active{background:var(--accent);color:#fff}.form-container{display:none}.form-container.active{display:block}.success-message{background:#10b9811a;border:1px solid rgba(16,185,129,.3);padding:12px;border-radius:8px;margin-bottom:16px;font-size:14px}.header{text-align:center;margin-bottom:60px}.header h1{font-size:36px;margin:0 0 12px;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{font-size:18px;color:var(--muted);margin:0}.current-plan{background:#4bd6b81a;border:1px solid rgba(75,214,184,.3);padding:16px 20px;border-radius:12px;margin-bottom:40px;text-align:center}.current-plan h3{margin:0 0 8px;color:var(--accent-2);font-size:16px}.billing-toggle{display:flex;justify-content:center;align-items:center;gap:16px;margin-bottom:40px}.toggle-switch{position:relative;width:60px;height:30px;background:#ffffff1a;border-radius:15px;cursor:pointer;transition:background-color .3s}.toggle-switch.active{background:var(--accent)}.toggle-switch:after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;background:#fff;border-radius:50%;transition:transform .3s}.toggle-switch.active:after{transform:translate(30px)}.plans-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;margin-bottom:40px}.plan-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;border:1px solid rgba(255,255,255,.05);position:relative;transition:transform .2s,border-color .2s}.plan-card:hover{transform:translateY(-4px)}.plan-card.popular{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),var(--shadow)}.plan-card.current{border-color:var(--success);background:#10b9810d}.plan-badge{position:absolute;top:-10px;right:20px;background:var(--accent);color:#fff;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:700;text-transform:uppercase}.plan-badge.current{background:var(--success)}.plan-name{font-size:24px;font-weight:700;margin:0 0 8px}.plan-description{color:var(--muted);font-size:14px;margin:0 0 20px}.plan-price{margin:20px 0}.plan-price .currency{font-size:16px;color:var(--muted);vertical-align:top}.plan-price .amount{font-size:42px;font-weight:700;color:var(--text)}.plan-price .period{font-size:16px;color:var(--muted)}.plan-price .savings{display:block;font-size:13px;color:var(--success);margin-top:8px;font-weight:500}.plan-features{list-style:none;padding:0;margin:24px 0}.plan-features li{display:flex;align-items:center;gap:12px;padding:8px 0;font-size:14px}.plan-features li:before{content:"✓";color:var(--accent-2);font-weight:700;font-size:16px}.plan-button{width:100%;padding:14px;border-radius:12px;border:none;font-weight:600;font-size:15px;cursor:pointer;transition:all .2s}.plan-button.primary{background:linear-gradient(90deg,var(--accent),#7a9cff 60%);color:#fff}.plan-button.secondary{background:#ffffff0d;color:var(--text);border:1px solid rgba(255,255,255,.1)}.plan-button.current{background:var(--success);color:#fff;cursor:default}.plan-button:hover:not(.current):not(:disabled){transform:translateY(-1px)}.plan-button:disabled{opacity:.6;cursor:not-allowed}.back-button{position:fixed;top:20px;left:20px;background:var(--card);border:1px solid rgba(255,255,255,.1);color:var(--text);padding:10px 16px;border-radius:8px;text-decoration:none;font-size:14px;transition:background-color .2s}.back-button:hover{background:#ffffff0d}.loading-content,.success-content{max-width:600px;margin:80px auto;text-align:center;padding:0 16px}.loading-animation{margin-bottom:32px}.loading-content h2{font-size:28px;margin:0 0 16px;color:var(--text)}.loading-content p{color:var(--muted);font-size:16px;margin:0 0 24px}.session-info{background:#ffffff0d;padding:16px;border-radius:8px;margin-top:24px}.session-info code{background:#ffffff1a;padding:4px 8px;border-radius:4px;font-family:monospace;font-size:12px}.success-header{margin-bottom:48px}.success-icon{font-size:72px;margin-bottom:24px}.success-header h1{font-size:36px;margin:0 0 16px;background:linear-gradient(90deg,var(--success),#22c55e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.success-header p{font-size:18px;color:var(--muted);margin:0}.success-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:48px}.info-card{background:var(--card);padding:24px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.05);text-align:left}.info-card h3{margin:0 0 20px;font-size:18px;display:flex;align-items:center;gap:8px}.user-details p,.plan-details p{margin:8px 0;color:var(--muted)}.plan-features{display:flex;flex-direction:column;gap:12px}.feature{display:flex;align-items:center;gap:12px}.feature-icon{font-size:18px;width:24px;text-align:center}.feature-text{color:var(--muted)}.success-actions{display:flex;gap:16px;justify-content:center;margin-bottom:48px;flex-wrap:wrap}.next-steps{background:var(--card);padding:32px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.05);text-align:left}.next-steps h3{margin:0 0 24px;text-align:center;font-size:20px;display:flex;align-items:center;justify-content:center;gap:8px}.steps-list{display:flex;flex-direction:column;gap:16px}.step{display:flex;align-items:center;gap:16px}.step-number{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.step-text{color:var(--muted);flex:1}.error-content{text-align:center;padding:60px 20px}.error-icon{font-size:72px;margin-bottom:24px}.error-content h2{color:var(--error);margin:0 0 16px}.error-content .actions{margin-top:32px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}@media (max-width: 768px){.container{padding:20px 16px}.header h1{font-size:28px}.plans-grid{grid-template-columns:1fr}.billing-toggle{flex-direction:column;gap:8px}.success-actions{flex-direction:column}.success-header h1{font-size:28px}.success-icon{font-size:56px}.steps-list{gap:20px}.step{align-items:flex-start}.step-number{margin-top:2px}}