@import "https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap";:root{--color-espresso:#1c0f0a;--color-dark:#2c1810;--color-sienna:#5c3d2e;--color-caramel:#c8956c;--color-latte:#d4a574;--color-cream:#f5e6d3;--color-parchment:#fdf6ec;--color-white:#fff;--color-muted:#8b6b5a;--font-display:"Playfair Display", Georgia, serif;--font-ui:"Inter", system-ui, sans-serif;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--radius-xl:28px;--radius-pill:9999px;--shadow-card:0 8px 48px #1c0f0a2e, 0 2px 12px #1c0f0a1a;--shadow-inset:inset 0 1px 3px #1c0f0a14;--transition-fast:.12s ease;--transition-base:.2s ease;--transition-slow:.35s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-ui);background:var(--color-cream);color:var(--color-dark);min-height:100dvh;padding:var(--space-4);background-image:radial-gradient(80% 60% at 20% 10%,#c8956c1f 0%,#0000 60%),radial-gradient(60% 50% at 80% 90%,#5c3d2e14 0%,#0000 50%);background-attachment:fixed;flex-direction:column;justify-content:center;align-items:center;display:flex}@media (width<=680px){body{justify-content:flex-start;align-items:stretch;padding:0}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.calc-wrapper{align-items:center;gap:var(--space-6);width:100%;max-width:820px;padding:var(--space-4) 0;flex-direction:column;margin:0 auto;display:flex}.calc-card{background:var(--color-parchment);border-radius:var(--radius-xl);width:100%;box-shadow:var(--shadow-card);border:1px solid #c8956c40;overflow:hidden}.calc-header{background:var(--color-espresso);padding:var(--space-6) var(--space-8);justify-content:space-between;align-items:center;gap:var(--space-4);display:flex}.calc-logo{align-items:center;gap:var(--space-4);display:flex}.calc-logo-icon{filter:drop-shadow(0 2px 8px #c8956c66);font-size:2.25rem;line-height:1}.calc-title{font-family:var(--font-display);color:var(--color-cream);letter-spacing:-.01em;font-size:1.75rem;font-weight:700;line-height:1.1}.calc-subtitle{color:var(--color-latte);letter-spacing:.02em;margin-top:2px;font-size:.8125rem;font-weight:400}.unit-toggle{align-items:center;gap:var(--space-2);border-radius:var(--radius-pill);padding:var(--space-2) var(--space-4);cursor:pointer;color:#f5e6d3b3;font-size:.8125rem;font-family:var(--font-ui);transition:background var(--transition-base), border-color var(--transition-base);white-space:nowrap;background:#ffffff14;border:1px solid #c8956c4d;font-weight:500;display:flex}.unit-toggle:hover{background:#ffffff24;border-color:#c8956c99}.unit-toggle .active{color:var(--color-cream);font-weight:600}.toggle-knob{background:var(--color-caramel);border-radius:var(--radius-pill);width:14px;height:14px;transition:transform var(--transition-base);flex-shrink:0;display:inline-block;box-shadow:0 0 8px #c8956c99}.unit-toggle.is-imperial .toggle-knob{transform:translate(2px)}.method-nav{background:var(--color-dark);overflow:hidden}.method-tabs-scroll{scrollbar-width:none;-webkit-overflow-scrolling:touch;display:flex;overflow-x:auto}.method-tabs-scroll::-webkit-scrollbar{display:none}.method-tab{padding:var(--space-3) var(--space-5);cursor:pointer;color:#d4a574a6;font-family:var(--font-ui);white-space:nowrap;transition:color var(--transition-fast), background var(--transition-fast);letter-spacing:.02em;background:0 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#c8956c4d;flex-direction:column;align-items:flex-start;gap:1px;font-size:.75rem;font-weight:600;line-height:1.2;display:flex}.preset-chip:hover{border-color:var(--color-caramel);color:var(--color-dark);background:#c8956c1f}.preset-chip.is-active{background:var(--color-caramel);border-color:var(--color-caramel);color:var(--color-espresso)}.preset-chip-tip{opacity:.75;white-space:normal;font-size:.6rem;font-weight:400;display:block}.output-col{gap:var(--space-4);padding:var(--space-6);border-radius:var(--radius-lg);top:var(--space-4);background:linear-gradient(145deg,#c8956c14,#5c3d2e0d);border:1px solid 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