.calculator-page{padding:0}.calculator-header{margin-bottom:28px}.calculator-header h1{font-family:Space Grotesk,sans-serif;font-size:2rem;font-weight:600;margin-bottom:10px;color:var(--color-text);line-height:1.2}.calculator-header p{color:var(--color-muted);margin-bottom:8px;font-size:15px;line-height:1.6}.formula{font-family:JetBrains Mono,monospace;font-size:13px;background:var(--color-surface-2);padding:10px 14px;border-radius:var(--radius-sm);color:var(--color-text);border-left:3px solid var(--color-border-strong);margin-top:12px!important;display:inline-block}.input-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}.button-group{display:flex;gap:10px;margin-top:20px}.btn-secondary{background-color:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-surface-2);box-shadow:none}.info-box{margin-top:28px;padding:18px 20px;background:var(--color-surface);border-radius:var(--radius-md);border:1px solid var(--color-border);border-left:3px solid var(--color-border-strong)}.info-box h3{font-family:Space Grotesk,sans-serif;font-size:15px;font-weight:600;margin-bottom:12px;color:var(--color-text)}.info-box p{color:var(--color-muted);margin-bottom:8px;line-height:1.6;font-size:14px}.color-guide{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:16px}.color-box{display:inline-block;width:20px;height:20px;border-radius:2px;margin-right:6px;vertical-align:middle;border:1px solid var(--color-border)}.color-box.black{background-color:#000}.color-box.brown{background-color:#8b4513}.color-box.red{background-color:red}.color-box.orange{background-color:orange}.color-box.yellow{background-color:#ff0}.color-box.green{background-color:green}.color-box.blue{background-color:#00f}.color-box.violet{background-color:#8b00ff}.color-box.grey{background-color:gray}.color-box.white{background-color:#fff}.resistors-list{margin:24px 0}.resistors-list h3{font-family:Space Grotesk,sans-serif;font-size:16px;font-weight:600;margin-bottom:16px;color:var(--color-text)}.resistor-input-row{display:flex;gap:12px;align-items:flex-end;margin-bottom:16px}.btn-remove{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-error);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .1s ease-out;flex-shrink:0}.btn-remove:hover{background:#fde8e8;border-color:var(--color-error)}@media(max-width:640px){.calculator-header h1{font-size:1.6rem}.input-grid{grid-template-columns:1fr}.button-group{flex-direction:column}.btn{width:100%}.content-section{padding:1rem!important}}