@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--color-bg: #121212;--color-surface: #1e1e1e;--color-surface-hover: #2a2a2a;--color-text-primary: #f0f0f0;--color-text-secondary: #a0a0a0;--color-border: #333333;--color-accent-primary: #00e5ff;--color-accent-biology: #00e676;--color-accent-chemistry: #d500f9;--color-accent-physics: #ff9100;--color-accent-cs: #2979ff;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 4rem;--glass-bg: rgba(30, 30, 30, .6);--glass-border: rgba(255, 255, 255, .1);--glass-blur: blur(12px);--glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--transition-fast: .2s ease;--transition-normal: .3s 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1rem;background:radial-gradient(circle closest-side at center,rgba(0,229,255,.1) 0%,transparent 100%)}.hero-title{font-size:5rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;letter-spacing:-2px}.hero-subtitle{font-size:1.25rem;color:var(--color-text-secondary);max-width:600px;margin:0 auto 2.5rem}.cta-button{background:var(--color-text-primary);color:var(--color-bg);padding:1rem 2rem;border-radius:50px;font-weight:600;font-size:1.1rem;display:inline-flex;align-items:center;gap:.5rem;transition:transform .2s,box-shadow .2s}.cta-button:hover{transform:translateY(-2px);box-shadow:0 10px 20px -5px #fff3}.subjects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.subject-card{padding:2rem;display:flex;flex-direction:column;gap:1rem;transition:background .3s}.subject-card:hover{background:#ffffff08}.card-icon{margin-bottom:.5rem}.subject-card h3{font-size:1.5rem;font-weight:600}.subject-card p{color:var(--color-text-secondary);flex-grow:1}.card-link{display:flex;align-items:center;gap:.5rem;font-weight:500;margin-top:1rem}@media(max-width:768px){.hero-title{font-size:3rem}}.dna-tool{padding:1.5rem;max-width:600px;margin:0 auto}.tool-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem;color:var(--color-accent-biology)}.input-group{display:flex;flex-direction:column;gap:.75rem}.tool-input{background:#0000004d;border:1px solid var(--color-border);color:var(--color-text-primary);padding:.75rem;border-radius:8px;font-family:monospace;font-size:1.1rem;letter-spacing:1px}.tool-controls{display:flex;gap:1rem;margin-top:.5rem}.btn-primary{background:var(--color-accent-biology);color:#000;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;display:flex;align-items:center;gap:.5rem;transition:opacity .2s}.btn-primary:hover{opacity:.9}.btn-secondary{background:transparent;border:1px solid var(--color-border);color:var(--color-text-secondary);padding:.75rem;border-radius:8px}.btn-secondary:hover{color:var(--color-text-primary);border-color:var(--color-text-secondary)}.results-container{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:1rem}.result-item{display:flex;flex-direction:column;gap:.25rem}.result-item .label{font-size:.875rem;color:var(--color-text-secondary)}.sequence{font-family:monospace;padding:.5rem;background:#0003;border-radius:4px;word-break:break-all}.sequence.rna{color:var(--color-accent-biology)}.sequence.protein{color:var(--color-accent-chemistry)}.molar-mass-tool{padding:1.5rem;max-width:500px;margin:0 auto}.chemistry-btn{background:var(--color-accent-chemistry);color:#fff}.chemistry-btn:hover{background:#a0f}.input-row{display:flex;gap:.5rem}.input-row input{flex-grow:1}.result-display{margin-top:1.5rem;padding:1rem;background:#d500f91a;border:1px solid var(--color-accent-chemistry);border-radius:8px;display:flex;justify-content:space-between;align-items:center}.result-value{font-size:1.25rem;font-weight:700;color:var(--color-accent-chemistry)}.projectile-tool{padding:1.5rem;max-width:600px;margin:0 auto}.controls-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-bottom:2rem}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{color:var(--color-text-secondary);font-size:.9rem}.value-display{text-align:right;font-weight:600;color:var(--color-accent-physics)}input[type=range]{width:100%;accent-color:var(--color-accent-physics)}.results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.result-card{background:#ff91001a;padding:1rem;border-radius:8px;display:flex;flex-direction:column;align-items:center;gap:.5rem;border:1px solid rgba(255,145,0,.2)}.result-label{font-size:.8rem;color:var(--color-text-secondary)}.result-value{font-size:1.25rem;font-weight:700;color:var(--color-accent-physics)}@media(max-width:600px){.controls-grid{grid-template-columns:1fr}}.base-converter{padding:1.5rem;max-width:600px;margin:0 auto;overflow:hidden}.converter-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.input-field{display:flex;flex-direction:column;gap:.5rem}.input-field label{color:var(--color-accent-cs);font-size:.875rem;font-weight:500}.input-field input{background:#0000004d;border:1px solid var(--color-border);color:var(--color-text-primary);padding:.75rem;border-radius:8px;font-family:monospace;font-size:1.1rem;width:100%;box-sizing:border-box}.input-field input:focus{border-color:var(--color-accent-cs);outline:none}.tool-note{margin-top:1.5rem;font-size:.875rem;color:var(--color-text-secondary);text-align:center}@media(max-width:600px){.converter-grid{grid-template-columns:1fr}}.soon-card{position:relative;cursor:help}.soon-card:after{content:"Coming Soon";position:absolute;bottom:100%;left:50%;transform:translate(-50%) translateY(10px);background:var(--color-accent-primary);color:var(--color-bg);padding:.5rem 1rem;border-radius:4px;font-size:.875rem;font-weight:600;white-space:nowrap;opacity:0;pointer-events:none;transition:all .2s ease;z-index:10;box-shadow:0 4px 12px #00000080}.soon-card:hover:after{opacity:1;transform:translate(-50%) translateY(-10px)}.soon-card:before{content:"";position:absolute;bottom:100%;left:50%;transform:translate(-50%) translateY(10px);border:6px solid transparent;border-top-color:var(--color-accent-primary);opacity:0;transition:all .2s ease;z-index:10;margin-bottom:-12px}.soon-card:hover:before{opacity:1;transform:translate(-50%) translateY(-10px)}.page-content{padding-bottom:4rem}.page-header{margin-bottom:3rem;text-align:center}.page-header h1{font-size:3rem;margin-bottom:.5rem}.page-subtitle{color:var(--color-text-secondary);font-size:1.25rem}.topic-section{margin-bottom:4rem}.topic-section h2{font-size:2rem;margin-bottom:1rem;color:var(--color-text-primary)}.topic-description{max-width:600px;margin-bottom:2rem;color:var(--color-text-secondary);line-height:1.6}.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.card{padding:1.5rem;transition:transform .2s}.card:hover{transform:translateY(-4px);background:#ffffff0d}.card h3{margin-bottom:.5rem;font-size:1.25rem}.card p{color:var(--color-text-secondary)}