:root{--bg: #f5f7fb;--bg-accent: #e8eef8;--surface: rgba(255, 255, 255, .94);--surface-alt: #eef3f9;--surface-soft: #ffffff;--ink: #162032;--muted: #5e6b7e;--line: rgba(100, 116, 139, .18);--accent: #2563eb;--accent-strong: #1d4ed8;--shadow: 0 18px 40px rgba(15, 23, 42, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,rgba(59,130,246,.12),transparent 35%),linear-gradient(180deg,var(--bg-accent),var(--bg));color:var(--ink);font-family:Arial,sans-serif}button,input,select,textarea{font:inherit}#root{min-height:100vh}.shell{width:min(1100px,calc(100% - 32px));margin:24px auto 40px;padding:24px;border-radius:20px;background:var(--surface);box-shadow:var(--shadow);border:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.hero{margin-bottom:24px}.hero-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.hero-logo{display:block;width:auto;max-width:min(220px,100%);height:auto;margin:0 0 12px}.hero-logo-link{display:inline-block}h1,h2,h3,p{margin-top:0}h1{margin-bottom:8px;font-size:clamp(1.8rem,3vw,2.4rem)}.hero p,.table-card p,.footer,label,.formula{color:var(--muted)}.hero p{max-width:40rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.panel,.table-card{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.panel-header{padding:14px 16px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#60a5fa14,#60a5fa05)}.panel-body{padding:16px}.converter{display:grid;gap:12px}.field-row{display:grid;grid-template-columns:1fr 150px;gap:10px}label{display:block;margin-bottom:6px;font-size:.9rem}input,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;color:var(--ink);background:var(--surface-soft);-webkit-appearance:none;-moz-appearance:none;appearance:none}input::placeholder{color:var(--muted)}input:focus,select:focus{outline:2px solid rgba(96,165,250,.35);outline-offset:1px;border-color:var(--accent-strong)}.results{display:grid;gap:10px;margin-top:14px}.result-item{display:flex;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:10px;background:var(--surface-alt);border:1px solid var(--line)}.result-item span{text-align:right;font-variant-numeric:tabular-nums}.formula{margin-top:14px;padding:12px 14px;border-radius:10px;background:#60a5fa14;border:1px solid var(--line);font-size:.92rem}.formula div+div{margin-top:6px}.reference{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin-top:22px}.table-card h3{padding:16px 16px 0}.table-card p{margin:8px 16px 14px;font-size:.92rem}table{width:100%;border-collapse:collapse;font-size:.92rem}th,td{padding:10px 12px;border:1px solid #eef2f6;text-align:left}th{color:#fff;background:var(--accent)}td{background:var(--surface-soft)}.footer{margin:20px 0 0;font-size:.9rem}@media(max-width:900px){.shell{width:min(100% - 24px,1100px);padding:20px}.grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.reference{grid-template-columns:1fr}}@media(max-width:700px){.shell{width:min(100% - 16px,1100px);padding:18px;margin:12px auto 24px;border-radius:16px}h1{font-size:1.6rem}h2{font-size:1.1rem}.grid,.field-row{grid-template-columns:1fr}.hero-top{flex-direction:column}.hero-logo{max-width:180px}.result-item{flex-direction:column;align-items:flex-start}.result-item span{text-align:left}th,td{padding:9px 10px;font-size:.86rem}}@media(max-width:480px){.shell{padding:14px}.panel-header,.panel-body{padding-left:12px;padding-right:12px}.table-card h3,.table-card p{padding-left:12px;padding-right:12px;margin-left:0;margin-right:0}table{font-size:.82rem}.hero-logo{max-width:150px}}