:root{--color-sage:#A8B5A0;--color-sage-dark:#889B7E;--color-sage-light:#C5CFBF;--color-sage-bg:rgba(168,181,160,0.10);--color-lavender-gray:#AEA8B8;--color-lavender-light:#C8C3D0;--color-lavender-bg:rgba(174,168,184,0.10);--color-ink:#5C4A3A;--color-gold:#C2B280;--color-gold-dark:#A89860;--color-gold-light:#D8CDA5;--color-gold-bg:rgba(194,178,128,0.12);--text-primary:#3D3833;--text-secondary:#5C5650;--text-muted:#8A847E;--text-hint:#B0A99F;--bg-page:#F7F5F2;--bg-card:#FFFFFF;--border-color:#E5E0DB;--status-success:#A8B5A0;--status-success-bg:rgba(168,181,160,0.15);--radius-sm:8px;--radius-md:12px;--radius-lg:24px;--shadow-sm:0 2px 8px rgba(92,74,58,0.06);--shadow-md:0 4px 16px rgba(92,74,58,0.08);--shadow-lg:0 8px 32px rgba(92,74,58,0.12);--gradient-primary:linear-gradient(135deg,#A8B5A0,#AEA8B8);--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--transition-fast:150ms ease;--transition-normal:250ms 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auto;padding:var(--space-lg) var(--space-md) var(--space-3xl)}.calculator{background:var(--bg-card);border:2px solid var(--border-color);border-radius:32px;padding:var(--space-lg);box-shadow:var(--shadow-lg);position:relative;transform:rotate(-0.3deg);transition:background-color 300ms ease,border-color 300ms ease,box-shadow 300ms ease}.calculator::before{content:'';display:block;width:80px;height:5px;background:var(--gradient-primary);border-radius:3px;margin:0 auto var(--space-lg);opacity:0.7}.calc-screen{background:var(--bg-page);border:1.5px solid var(--border-color);border-radius:var(--radius-md);padding:var(--space-md) var(--space-lg);margin-bottom:var(--space-md);text-align:right;transition:background-color 300ms ease,border-color 300ms ease}.calc-screen-label{font-size:12px;letter-spacing:2px;color:var(--text-hint);text-transform:uppercase;text-align:left;margin-bottom:var(--space-xs)}.calc-screen-display{display:flex;align-items:baseline;justify-content:flex-end;gap:4px}.calc-currency{font-family:var(--font-serif);font-size:24px;font-weight:600;color:var(--color-sage)}.calc-price-display{font-family:var(--font-serif);font-size:clamp(36px,8vw,48px);font-weight:600;color:var(--text-hint);letter-spacing:0.02em;min-width:60px;text-align:right;transition:color var(--transition-fast)}.calc-price-display.has-value{color:var(--color-ink)}.hidden-input{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;font-size:16px;border:none;background:transparent;-moz-appearance:textfield;z-index:1}.hidden-input::-webkit-outer-spin-button,.hidden-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.calc-screen-display{position:relative}.calc-screen-hint{font-size:12px;color:var(--text-hint);text-align:right;margin-top:var(--space-xs)}.calc-keypad{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:var(--space-sm);margin-bottom:var(--space-lg)}.calc-key{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--text-primary);background:var(--bg-page);border:1.5px solid var(--border-color);border-radius:var(--radius-md);padding:14px 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ease}.calc-card--best{background:var(--status-success-bg);border-color:var(--color-sage);transform:rotate(0.5deg)}.calc-card-badge{display:inline-block;font-size:11px;font-weight:600;color:var(--color-gold-dark);background:var(--color-gold-bg);border:1px solid var(--color-gold);border-radius:999px;padding:2px 10px;margin-bottom:var(--space-xs);letter-spacing:1px}.calc-card-name{font-family:var(--font-serif);font-size:15px;font-weight:600;color:var(--color-ink);margin-bottom:var(--space-xs)}.calc-card-cost{font-family:var(--font-serif);font-size:28px;font-weight:600;color:var(--color-ink);letter-spacing:0.02em}.calc-card-points{font-size:12px;color:var(--text-muted);margin-top:2px}.calc-card-saved{font-size:13px;font-weight:600;color:var(--color-sage-dark);margin-top:var(--space-xs)}.calc-card-tag{font-size:11px;color:var(--text-hint);margin-top:var(--space-xs)}.calc-advice{font-size:15px;line-height:1.7;color:var(--text-secondary);background:var(--bg-page);border-left:3px solid var(--color-sage);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:var(--space-md) var(--space-lg);margin-top:var(--space-lg);opacity:0;transform:translateY(8px);transition:opacity 0.4s ease,transform 0.4s ease,background-color 300ms ease,border-color 300ms ease}.calc-advice.visible{opacity:1;transform:translateY(0)}.calc-advice strong{color:var(--color-ink);font-weight:600}.cheat-sheet{margin-top:var(--space-2xl)}.cheat-sheet-subtitle{font-size:15px;color:var(--text-muted);margin-bottom:var(--space-lg)}.cheat-cards{display:flex;flex-direction:column;gap:var(--space-sm)}.cheat-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:var(--space-md);display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:2px var(--space-md);transition:background-color 300ms ease,border-color 300ms ease}.cheat-card--highlight{border-color:var(--color-gold);background:var(--color-gold-bg)}.cheat-card-range{font-family:var(--font-serif);font-size:17px;font-weight:600;color:var(--color-ink);grid-row:1;grid-column:1}.cheat-card-best{font-size:16px;font-weight:600;color:var(--color-sage-dark);grid-row:1;grid-column:2;text-align:right}.cheat-card-tip{font-size:14px;color:var(--text-secondary);grid-row:2;grid-column:1 / -1;line-height:1.6;margin-top:2px}.cheat-sheet-note{font-size:13px;color:var(--text-muted);margin-top:var(--space-md);line-height:1.6}.tips-section{margin-top:var(--space-3xl)}.tip-cards{display:flex;flex-direction:column;gap:var(--space-md)}.tip-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-lg);transition:background-color 300ms ease,border-color 300ms 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h3{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:var(--space-xs)}.ap-card-text p{font-size:14px;color:var(--text-secondary);line-height:1.7}.ap-card-btn{flex-shrink:0;display:inline-flex;align-items:center;gap:6px;padding:10px 20px;background:var(--color-sage);color:#fff;font-size:14px;font-weight:500;border-radius:var(--radius-md);text-decoration:none;transition:color 200ms ease,transform 200ms ease,box-shadow 200ms ease}.ap-card-btn:hover{color:var(--text-primary);transform:translateY(-1px);box-shadow:var(--shadow-md)}@media (max-width:600px){.ap-card-inner{flex-direction:column;text-align:center;padding:var(--space-lg)}.ap-card-btn{width:100%;justify-content:center}}.related-section{margin-top:var(--space-2xl)}.related-link{display:inline-flex;align-items:center;gap:var(--space-sm);font-size:15px;color:var(--color-sage);text-decoration:none;padding:var(--space-sm) 0}.related-link:hover{color:var(--color-sage-dark);text-decoration:underline;text-underline-offset:3px}.theme-toggle{position:fixed;bottom:var(--space-lg);right:var(--space-lg);width:44px;height:44px;background:var(--bg-card);border:1.5px solid var(--border-color);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);z-index:200;color:var(--text-secondary);transition:background-color 300ms ease,border-color 300ms ease,box-shadow 300ms ease;padding-bottom:env(safe-area-inset-bottom,0)}.theme-toggle:hover{border-color:var(--color-sage)}.theme-toggle:focus-visible{outline:2px solid var(--color-ink);outline-offset:2px}.icon-moon{display:none}html.dark .icon-sun{display:none}html.dark .icon-moon{display:block}.site-footer{text-align:center;padding:var(--space-xl) var(--space-md);font-size:14px;color:var(--text-muted);position:relative;transition:color 300ms ease}.site-footer::before{content:'';display:block;width:120px;height:1px;background:linear-gradient(90deg,transparent,var(--color-gold),transparent);margin:0 auto var(--space-lg);opacity:0.5}.site-footer a{color:var(--color-sage);text-decoration:none}.site-footer a:hover{text-decoration:underline;text-underline-offset:3px}.fade{opacity:0;transform:translateY(20px);transition:opacity 0.7s cubic-bezier(.22,.61,.36,1),transform 0.7s cubic-bezier(.22,.61,.36,1)}.fade.visible{opacity:1;transform:translateY(0)}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}}.skip-link{position:absolute;top:-100%;left:var(--space-md);padding:var(--space-sm) var(--space-md);background:var(--color-sage);color:#FFFFFF;border-radius:var(--radius-sm);z-index:999;text-decoration:none}.skip-link:focus{top:var(--space-sm)}@media (min-width:768px){.main-content{padding-top:var(--space-2xl)}.calc-result-cards{grid-template-columns:repeat(3,1fr)}}@media (max-width:380px){.calc-keypad{grid-template-columns:repeat(3,1fr)}.calc-key:nth-child(4),.calc-key:nth-child(5){grid-column:span 1}}