:root{--color-bg: #ffffff;--color-text: #000000;--color-accent: #000000;--font-primary: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--transition: opacity .18s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-primary);background:var(--color-bg);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:12px;height:12px}::-webkit-scrollbar-track{background:#fff}::-webkit-scrollbar-thumb{background-color:#d1d1cf;border-radius:20px;border:3px solid #ffffff}::-webkit-scrollbar-thumb:hover{background-color:#bcbcba}*{scrollbar-width:thin;scrollbar-color:#d1d1cf #ffffff}#app{min-height:100vh}h1{font-size:48px;font-weight:700;letter-spacing:-.02em;line-height:1.2;margin-bottom:24px}h2{font-size:32px;font-weight:600;letter-spacing:-.01em;line-height:1.3;margin-bottom:16px}h3{font-size:24px;font-weight:600;line-height:1.4;margin-bottom:12px}p{font-size:16px;line-height:1.7;margin-bottom:16px}button,.btn{font-family:var(--font-primary);font-size:14px;font-weight:600;padding:10px 18px;background:#1a1a1a;color:#fff;border:none;border-radius:6px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;line-height:1.5;transition:background .15s ease}button:disabled,.btn:disabled{opacity:.5;cursor:not-allowed}button.secondary,.btn-secondary{background:#f0f0f0;color:#000}button.outline,.btn-outline{background:transparent;color:#000;border:1px solid #d0d0d0}button.primary,.btn-primary{background:#000;color:#fff;border-radius:9999px;font-weight:600;letter-spacing:0}.btn-primary:hover{background:#1a1a1a}button.small,.btn-small{font-size:12px;padding:5px 12px}button.large,.btn-large{font-size:12px;padding:9px 18px}input,textarea{font-family:var(--font-primary);font-size:14px;padding:10px 14px;background:#fff;border:1px solid #e8e8e8;border-radius:9999px;width:100%;transition:border-color .15s ease,box-shadow .15s ease;color:#1a1a1a}input:focus,textarea:focus{outline:none;border-color:#000;box-shadow:0 0 0 2px #0000001a}input::placeholder{color:#b0b0b0}textarea{resize:vertical;min-height:100px;border-radius:12px}.form-group{position:relative}.validation-tooltip{position:absolute;bottom:-36px;left:16px;background:#333;color:#fff;font-size:12px;font-weight:400;padding:6px 12px;border-radius:16px;white-space:nowrap;z-index:10;pointer-events:none;animation:tooltipFadeIn .15s ease}.validation-tooltip:before{content:"";position:absolute;top:-5px;left:20px;width:10px;height:10px;background:#333;transform:rotate(45deg);border-radius:2px}@keyframes tooltipFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.container{max-width:800px;margin:0 auto;padding:40px}.text-center{text-align:center}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.app-header{position:fixed;top:0;left:0;right:0;width:100%;max-width:100%;background:#fff;z-index:100;display:flex;flex-direction:column}.header-content{width:100%;max-width:100%;margin:0;padding:0 24px;display:flex;align-items:center;height:52px;border-bottom:none}.logo{font-size:22px;font-weight:600;color:var(--color-text);text-decoration:none;letter-spacing:-.03em}.header-nav{display:flex;gap:8px;align-items:center}.nav-item{color:var(--color-text);text-decoration:none;font-size:12px;font-weight:500;padding:8px 20px;border-radius:20px;transition:all .18s ease;background:transparent}.header-actions{display:flex;gap:12px;align-items:center}.icon-button{width:40px;height:40px;border-radius:50%;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .18s ease;padding:0;color:var(--color-text);font-size:20px}.app-footer{background:#fff;padding:32px 40px;text-align:center}.app-footer p{font-size:12px;color:#666;margin:0}.main-content{padding-top:84px;min-height:calc(100vh - 84px)}