:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-secondary: #475569;--color-accent: #8b5cf6;--color-background: #f8fafc;--color-surface: #ffffff;--color-text-main: #0f172a;--color-text-secondary: #64748b;--color-border: #e2e8f0;--color-error: #ef4444;--color-success: #10b981;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;--font-mono: "JetBrains Mono", monospace;--space-xs: .5rem;--space-sm: .75rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-background);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:700;letter-spacing:-.025em;color:var(--color-text-main)}h1{font-size:2.25rem}h2{font-size:1.5rem}h3{font-size:1.25rem}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:1rem}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary-hover)}.app-header{background-color:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:50;padding:var(--space-md) 0}.header-content{max-width:1200px;margin:0 auto;padding:0 var(--space-lg);display:flex;justify-content:space-between;align-items:center}.logo-section{display:flex;align-items:center;gap:var(--space-md)}.logo-icon{font-size:2rem;background:var(--color-background);width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);border:1px solid var(--color-border)}.app-eyebrow{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-primary);font-weight:600;margin-bottom:2px}.app-title{font-size:1.25rem;margin:0;color:var(--color-text-main)}.header-nav{display:flex;gap:var(--space-lg)}.header-nav a{color:var(--color-text-secondary);font-weight:500;font-size:.95rem}.header-nav a.active{color:var(--color-primary)}.header-nav a:hover{color:var(--color-text-main)}.app-footer{background-color:var(--color-surface);border-top:1px solid var(--color-border);padding:var(--space-xl) 0;margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;padding:0 var(--space-lg);display:flex;justify-content:space-between;align-items:center;color:var(--color-text-secondary);font-size:.875rem}.footer-links{display:flex;gap:var(--space-lg)}.footer-links a{color:var(--color-text-secondary)}.footer-links a:hover{color:var(--color-primary)}@media(max-width:768px){.footer-content{flex-direction:column;gap:var(--space-md);text-align:center}}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-main{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:var(--space-xl) var(--space-lg)}.hero-section{background:linear-gradient(135deg,#f0fdf4,#eef2ff);border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:var(--space-2xl);margin-bottom:var(--space-xl);display:grid;grid-template-columns:1.5fr 1fr;gap:var(--space-2xl);align-items:center;position:relative;overflow:hidden}.hero-section:before{content:"";position:absolute;top:0;right:0;width:300px;height:300px;background:radial-gradient(circle,rgba(37,99,235,.05) 0%,transparent 70%);z-index:0}.hero-content{position:relative;z-index:1}.hero-title{font-size:2.5rem;margin-bottom:var(--space-md);color:var(--color-text-main);line-height:1.1}.hero-description{font-size:1.125rem;color:var(--color-text-secondary);margin-bottom:var(--space-lg);max-width:500px}.hero-actions{display:flex;gap:var(--space-md)}.btn{padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:all .2s;border:1px solid transparent}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover);box-shadow:var(--shadow-md)}.btn-secondary{background-color:#fff;color:var(--color-primary);border-color:var(--color-border)}.btn-secondary:hover{background-color:var(--color-background);border-color:var(--color-primary)}.hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-md);position:relative;z-index:1}.metric-card{background:#fff;padding:var(--space-lg);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.metric-card.clearance{grid-column:span 2;background:linear-gradient(to right,#fff,#f0f9ff);border-color:#bae6fd}.metric-label{display:block;font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.metric-value{font-size:2rem;font-weight:700;color:var(--color-text-main);display:flex;align-items:baseline;gap:4px}.metric-unit{font-size:1rem;font-weight:500;color:var(--color-text-secondary)}@media(max-width:900px){.hero-section{grid-template-columns:1fr;padding:var(--space-xl);gap:var(--space-xl)}.hero-title{font-size:2rem}}.input-panel{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden}.panel-header{padding:var(--space-lg);border-bottom:1px solid var(--color-border);background:#f8fafc}.header-row{display:flex;justify-content:space-between;align-items:center}.panel-header h2{font-size:1.125rem;margin:0}.preset-dropdown select{padding:6px 12px;border-radius:var(--radius-md);border:1px solid var(--color-border);background:#fff;font-size:.875rem;color:var(--color-primary);font-weight:500;cursor:pointer}.preset-dropdown select:hover{border-color:var(--color-primary)}.input-group{padding:var(--space-lg);border-bottom:1px solid var(--color-border)}.input-group:last-child{border-bottom:none}.group-title{font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);margin-bottom:var(--space-md);display:flex;align-items:center;gap:var(--space-xs)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md);margin-bottom:var(--space-md)}.form-field{display:flex;flex-direction:column;gap:var(--space-xs)}.form-field label{font-size:.875rem;font-weight:500;color:var(--color-text-secondary)}.form-field input{padding:.625rem;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-main);transition:all .2s}.form-field input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}.form-field input:hover{border-color:#cbd5e1}.results-panel{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden;height:100%;display:flex;flex-direction:column}.results-grid{padding:var(--space-lg);display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-md);flex:1}.result-item{padding:var(--space-md);background:#f8fafc;border-radius:var(--radius-md);border:1px solid var(--color-border)}.result-item.primary{grid-column:span 2;background:#eff6ff;border-color:#bfdbfe}.result-label{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.result-value{font-size:1.5rem;font-weight:700;color:var(--color-text-main);display:flex;align-items:baseline;gap:4px}.result-item.primary .result-value{font-size:2rem;color:var(--color-primary)}.result-desc{font-size:.875rem;color:var(--color-text-secondary);margin-top:var(--space-xs)}.unit{font-size:.875rem;font-weight:500;color:var(--color-text-secondary)}.assumptions-footer{padding:var(--space-md) var(--space-lg);background:#f8fafc;border-top:1px solid var(--color-border);display:flex;gap:var(--space-sm)}.assumption-pill{font-size:.75rem;background:#fff;padding:4px 8px;border-radius:var(--radius-full);border:1px solid var(--color-border);color:var(--color-text-secondary)}.map-panel{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden;height:100%;display:flex;flex-direction:column}.map-container{flex:1;min-height:300px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;padding:var(--space-xl)}.map-placeholder-content{text-align:center;max-width:300px}.map-icon{font-size:3rem;margin-bottom:var(--space-md);opacity:.5}.map-placeholder-content h3{font-size:1.125rem;margin-bottom:var(--space-xs);color:var(--color-text-main)}.map-placeholder-content p{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--space-lg)}.map-features{list-style:none;text-align:left;background:#fff;padding:var(--space-md);border-radius:var(--radius-md);border:1px solid var(--color-border)}.map-features li{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:4px}.map-features li:last-child{margin-bottom:0}.weather-advisor{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:var(--space-lg);box-shadow:var(--shadow-sm)}.advisor-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.advisor-header h3{font-size:.95rem;margin:0;color:var(--color-text-main);text-transform:uppercase;letter-spacing:.05em}.live-badge{font-size:.65rem;font-weight:700;color:#fff;background:#ef4444;padding:2px 6px;border-radius:4px;animation:pulse 2s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}.weather-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-sm);margin-bottom:var(--space-md)}.weather-item{display:flex;flex-direction:column;gap:2px}.weather-item .label{font-size:.75rem;color:var(--color-text-secondary)}.weather-item .value{font-size:1.1rem;font-weight:600;color:var(--color-text-main)}.advisor-tip{font-size:.8rem;color:var(--color-primary);background:#eff6ff;padding:var(--space-sm);border-radius:var(--radius-md);border:1px solid #bfdbfe;line-height:1.4}.weather-loading,.weather-error{font-size:.875rem;color:var(--color-text-secondary);padding:var(--space-md);text-align:center}.modal-overlay{position:fixed;inset:0;background:#0f172a99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:var(--space-md)}.modal-content{background:#fff;width:100%;max-width:600px;max-height:90vh;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-header{padding:var(--space-lg);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-size:1.25rem;margin:0}.close-btn{background:transparent;border:none;font-size:1.5rem;color:var(--color-text-secondary);cursor:pointer;padding:0;line-height:1}.close-btn:hover{color:var(--color-text-main)}.modal-body{padding:var(--space-lg);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-lg)}.experiment-card{background:#f8fafc;padding:var(--space-md);border-radius:var(--radius-md);border:1px solid var(--color-border)}.experiment-card h3{font-size:1rem;margin-bottom:var(--space-xs);color:var(--color-primary)}.experiment-card p{font-size:.9rem;margin-bottom:4px;color:var(--color-text-secondary)}.experiment-card .conclusion{margin-top:var(--space-sm);font-weight:600;color:var(--color-success);background:#ecfdf5;padding:8px;border-radius:var(--radius-sm);border:1px solid #d1fae5}.main-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:var(--space-xl);margin-top:var(--space-xl)}.left-column{display:flex;flex-direction:column;gap:var(--space-lg)}.right-column{display:flex;flex-direction:column}.grid-stack{display:flex;flex-direction:column;gap:var(--space-lg);height:100%}@media(max-width:900px){.main-grid{grid-template-columns:1fr}}