:root{--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;--bg: #ffffff;--bg-soft: #f9f9f9;--bg-inset: #fafafa;--text-primary: #1d1d1f;--text-secondary: #6e6e73;--text-tertiary: #888;--border-color: #e5e5e5;--border-strong: #d2d2d7;--link-color: #4F46E5;--accent-color: #16a34a;--accent-color-light: #f0fdf4;--card-shadow: 0 4px 12px rgba(0, 0, 0, .06);--card-shadow-hover: 0 6px 16px rgba(0, 0, 0, .1);--cta-bg: #000;--cta-text: #fff}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}body{margin:0;font-family:var(--font-family);background-color:var(--bg);color:var(--text-primary)}.app-container{height:100vh;display:flex;flex-direction:column}.page-content-wrapper{flex:1;overflow-y:auto;padding:40px 20px}.app-header{width:100%;background-color:var(--bg-soft);border-bottom:1px solid var(--border-color)}.header-content{display:flex;align-items:center;justify-content:center;max-width:1200px;margin:0 auto;padding:15px 20px}.header-cta-button{background-color:var(--cta-bg);color:var(--cta-text);padding:8px 14px;border-radius:8px;text-decoration:none;font-weight:500;font-size:14px;transition:all .2s ease}.header-cta-button:hover{opacity:.8;transform:translateY(-1px)}.main-interface{display:flex;width:100%;max-width:1200px;margin:0 auto;gap:40px}.calculator-container{flex:1;min-width:300px;max-width:450px;animation:fadeInUp .5s ease-out forwards}.right-column{flex:1.2;display:flex;flex-direction:column;gap:24px;animation:fadeInUp .7s ease-out forwards}.calculator-container .header{text-align:center;margin-bottom:32px}.calculator-container .header h1{font-size:28px;margin-bottom:8px;font-weight:700}.calculator-container .header p{font-size:16px;color:var(--text-secondary);line-height:1.5;margin:0}.calculator-container .form-row{display:flex;margin-bottom:12px;border:1px solid var(--border-strong);border-radius:8px;overflow:hidden;transition:border-color .2s ease}.calculator-container 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