@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&display=swap";/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.static{position:static}.isolate{isolation:isolate}.block{display:block}.flex{display:flex}.hidden{display:none}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-wrap{flex-wrap:wrap}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}:root{--bg-primary: #0a0e1a;--bg-secondary: #111827;--bg-card: rgba(17, 24, 39, .7);--bg-glass: rgba(255, 255, 255, .03);--border-glass: rgba(255, 255, 255, .08);--accent-primary: #6366f1;--accent-secondary: #8b5cf6;--accent-glow: rgba(99, 102, 241, .3);--accent-rose: #f43f5e;--accent-emerald: #10b981;--accent-amber: #f59e0b;--accent-cyan: #06b6d4;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);--gradient-rose: linear-gradient(135deg, #f43f5e, #e11d48);--gradient-emerald: linear-gradient(135deg, #10b981, #059669);--gradient-amber: linear-gradient(135deg, #f59e0b, #d97706);--gradient-hero: linear-gradient(135deg, rgba(99,102,241,.15), rgba(139,92,246,.1), rgba(6,182,212,.08));--shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(99, 102, 241, .15);--radius-lg: 20px;--radius-md: 12px;--radius-sm: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:Inter,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;overflow-x:hidden;min-height:100vh}h1,h2,h3,h4,h5{font-family:Outfit,sans-serif;line-height:1.2}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1rem 2rem;background:#0a0e1acc;backdrop-filter:blur(20px);border-bottom:1px solid var(--border-glass);transition:all .3s ease}.navbar.scrolled{background:#0a0e1af2;padding:.7rem 2rem}.nav-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.nav-logo{display:flex;align-items:center;gap:.75rem;text-decoration:none}.nav-logo-icon{width:42px;height:42px;border-radius:var(--radius-sm);background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 0 20px var(--accent-glow)}.nav-logo-text{font-family:Outfit,sans-serif;font-size:1.3rem;font-weight:700;color:var(--text-primary)}.nav-logo-text span{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{display:flex;gap:2rem;list-style:none}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .3s;position:relative;padding-bottom:4px}.nav-links a:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gradient-primary);transition:width .3s}.nav-links a:hover{color:var(--text-primary)}.nav-links a:hover:after{width:100%}.nav-menu-toggle{display:none;background:transparent;border:1px solid var(--border-glass);color:var(--text-primary);border-radius:var(--radius-sm);padding:.55rem .7rem;font-size:1.15rem;cursor:pointer}.mobile-nav{display:none}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:8rem 2rem 4rem;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 40%,rgba(99,102,241,.08) 0%,transparent 50%),radial-gradient(circle at 70% 60%,rgba(139,92,246,.06) 0%,transparent 50%),radial-gradient(circle at 50% 80%,rgba(6,182,212,.04) 0%,transparent 40%);animation:heroGlow 15s ease-in-out infinite alternate}@keyframes heroGlow{0%{transform:translate(0) rotate(0)}to{transform:translate(-3%,-3%) rotate(3deg)}}.hero-content{max-width:800px;text-align:center;position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1.25rem;border-radius:50px;background:#6366f11a;border:1px solid rgba(99,102,241,.2);font-size:.85rem;color:var(--accent-primary);font-weight:500;margin-bottom:2rem;animation:fadeInUp .8s ease}.hero-badge .pulse{width:8px;height:8px;border-radius:50%;background:var(--accent-emerald);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.5)}}.hero h1{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;margin-bottom:1.5rem;animation:fadeInUp .8s ease .1s both}.hero h1 .gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:1.15rem;color:var(--text-secondary);max-width:600px;margin:0 auto 2.5rem;animation:fadeInUp .8s ease .2s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;animation:fadeInUp .8s ease .3s both}.btn-primary,.btn-secondary{padding:.85rem 2rem;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-decoration:none}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 15px var(--accent-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-glow)}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-glass)}.btn-secondary:hover{background:#ffffff0f;border-color:#ffffff26}.hero-stats{display:flex;gap:3rem;justify-content:center;margin-top:4rem;animation:fadeInUp .8s ease .4s both}.hero-stat{text-align:center}.hero-stat .number{font-family:Outfit,sans-serif;font-size:2rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-stat .label{font-size:.8rem;color:var(--text-muted);margin-top:.25rem}.section{padding:6rem 2rem;max-width:1200px;margin:0 auto}.section-header{text-align:center;margin-bottom:4rem}.section-label{display:inline-block;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:2px;color:var(--accent-primary);margin-bottom:1rem}.section-title{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;margin-bottom:1rem}.section-subtitle{font-size:1.05rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.calculator-wrapper{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}.calc-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:2rem;backdrop-filter:blur(10px);box-shadow:var(--shadow-lg)}.calc-card-title{font-size:1.3rem;font-weight:700;margin-bottom:.5rem;display:flex;align-items:center;gap:.75rem}.calc-card-title .icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.calc-card-desc{font-size:.9rem;color:var(--text-muted);margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-label{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.form-label .unit{font-size:.75rem;color:var(--text-muted)}.form-label .info-tip{width:18px;height:18px;border-radius:50%;background:#6366f126;color:var(--accent-primary);display:inline-flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:700;cursor:help;margin-left:.5rem;position:relative}.form-label .info-tip .tooltip-text{visibility:hidden;opacity:0;position:absolute;bottom:130%;left:50%;transform:translate(-50%);background:var(--bg-secondary);border:1px solid var(--border-glass);border-radius:var(--radius-sm);padding:.5rem .75rem;font-size:.75rem;color:var(--text-secondary);white-space:nowrap;transition:all .2s;z-index:10;font-weight:400}.form-label .info-tip:hover .tooltip-text{visibility:visible;opacity:1}.form-input,.form-select{width:100%;padding:.8rem 1rem;border-radius:var(--radius-sm);background:#ffffff08;border:1px solid var(--border-glass);color:var(--text-primary);font-family:Inter,sans-serif;font-size:.95rem;transition:all .3s;outline:none}.form-input:focus,.form-select:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f11a}.form-input::placeholder{color:var(--text-muted)}.form-select option{background:var(--bg-secondary);color:var(--text-primary)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.radio-group{display:flex;gap:1rem}.radio-option{flex:1;position:relative}.radio-option input{position:absolute;opacity:0}.radio-option label{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1rem;border-radius:var(--radius-sm);background:var(--bg-glass);border:1px solid var(--border-glass);cursor:pointer;font-size:.9rem;font-weight:500;color:var(--text-secondary);transition:all .3s}.radio-option input:checked+label{background:#6366f11a;border-color:var(--accent-primary);color:var(--accent-primary)}.calc-actions{display:flex;gap:1rem;margin-top:2rem}.calc-actions .btn-primary{flex:1;text-align:center;font-size:1rem;padding:1rem}.calc-actions .btn-reset{padding:1rem 1.5rem;border-radius:var(--radius-sm);background:#f43f5e1a;border:1px solid rgba(244,63,94,.2);color:var(--accent-rose);cursor:pointer;font-weight:600;font-size:.9rem;transition:all .3s}.calc-actions .btn-reset:hover{background:#f43f5e33}.results-panel{position:sticky;top:100px}.result-metric{padding:1.25rem;border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border-glass);margin-bottom:1rem;transition:all .4s}.result-metric.highlight{border-color:var(--accent-primary);box-shadow:0 0 30px #6366f11a}.result-metric .label{font-size:.8rem;color:var(--text-muted);margin-bottom:.25rem}.result-metric .value{font-family:Outfit,sans-serif;font-size:1.8rem;font-weight:700}.result-metric .unit-label{font-size:.85rem;color:var(--text-muted);font-weight:400}.result-metric .status-badge{display:inline-block;padding:.25rem .75rem;border-radius:50px;font-size:.75rem;font-weight:600;margin-top:.5rem}.status-normal{background:#10b98126;color:var(--accent-emerald)}.status-mild{background:#f59e0b26;color:var(--accent-amber)}.status-moderate{background:#f9731626;color:#f97316}.status-severe{background:#f43f5e26;color:var(--accent-rose)}.geometry-result{margin-top:1rem;padding:1.5rem;border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border-glass);text-align:center}.geometry-result .geo-label{font-size:.8rem;color:var(--text-muted);margin-bottom:.5rem}.geometry-result .geo-type{font-family:Outfit,sans-serif;font-size:1.2rem;font-weight:700;margin-bottom:.5rem}.geometry-result .geo-desc{font-size:.8rem;color:var(--text-secondary)}.results-empty{text-align:center;padding:3rem 1rem;color:var(--text-muted)}.results-empty .empty-icon{font-size:3rem;margin-bottom:1rem;opacity:.3}.results-empty p{font-size:.9rem}.diagram-section{padding:6rem 2rem}.diagram-container{max-width:1200px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:3rem;backdrop-filter:blur(10px);position:relative;overflow:hidden}.diagram-container:before{content:"";position:absolute;top:0;right:0;width:300px;height:300px;background:radial-gradient(circle,rgba(99,102,241,.08),transparent 70%);pointer-events:none}.diagram-flow{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;margin-top:2rem;position:relative}.flow-step{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.5rem;flex:0 0 200px;position:relative;cursor:pointer;transition:transform .3s}.flow-step:hover{transform:translateY(-5px)}.flow-step .step-icon{width:70px;height:70px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;margin-bottom:1rem;position:relative;z-index:1;transition:all .4s;box-shadow:0 0 25px #0000004d}.flow-step.active .step-icon{transform:scale(1.1)}.flow-step .step-num{position:absolute;top:8px;right:calc(50% - 45px);width:22px;height:22px;border-radius:50%;background:var(--bg-primary);border:2px solid var(--accent-primary);display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:700;color:var(--accent-primary);z-index:2}.flow-step .step-title{font-weight:600;font-size:.9rem;margin-bottom:.25rem}.flow-step .step-desc{font-size:.75rem;color:var(--text-muted)}.flow-arrow{font-size:1.5rem;color:var(--text-muted);flex-shrink:0;animation:arrowPulse 2s ease-in-out infinite}@keyframes arrowPulse{0%,to{opacity:.4}50%{opacity:1}}.flow-detail-panel{margin-top:2rem;padding:2rem;border-radius:var(--radius-md);background:#6366f10d;border:1px solid rgba(99,102,241,.1);min-height:180px;transition:all .4s}.flow-detail-panel h4{font-size:1.1rem;margin-bottom:.75rem;color:var(--accent-primary)}.flow-detail-panel p{font-size:.9rem;color:var(--text-secondary);line-height:1.8}.flow-detail-panel .formula-box{display:inline-block;padding:.75rem 1.5rem;margin-top:1rem;border-radius:var(--radius-sm);background:#0000004d;font-family:Courier New,monospace;font-size:.85rem;color:var(--accent-cyan);border:1px solid rgba(6,182,212,.2)}.geometry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:2rem}.geo-card{padding:1.5rem;border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border-glass);cursor:pointer;transition:all .3s;position:relative;overflow:hidden}.geo-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-md) var(--radius-md) 0 0;opacity:0;transition:opacity .3s}.geo-card:hover{border-color:#ffffff26;transform:translateY(-3px)}.geo-card:hover:before{opacity:1}.geo-card.normal:before{background:var(--gradient-emerald)}.geo-card.concentric-r:before{background:var(--gradient-amber)}.geo-card.concentric-h:before{background:var(--gradient-rose)}.geo-card.eccentric:before{background:linear-gradient(135deg,#6366f1,#8b5cf6)}.geo-card .geo-card-icon{font-size:2rem;margin-bottom:.75rem}.geo-card h4{font-size:1rem;font-weight:600;margin-bottom:.5rem}.geo-card .geo-criteria{font-size:.8rem;color:var(--text-muted);margin-bottom:.5rem}.geo-card .geo-explanation{font-size:.8rem;color:var(--text-secondary);line-height:1.6}.heart-viz-container{display:flex;align-items:center;justify-content:center;gap:3rem;margin-top:2rem;flex-wrap:wrap}.heart-svg-wrap{width:280px;height:280px;position:relative;display:flex;align-items:center;justify-content:center}.heart-svg-wrap svg{width:100%;height:100%}.ref-table-wrap{overflow-x:auto;margin-top:2rem;border-radius:var(--radius-md);border:1px solid var(--border-glass)}.ref-table{width:100%;border-collapse:collapse;font-size:.9rem}.ref-table thead{background:#6366f11a}.ref-table th{padding:1rem;text-align:left;font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:1px;color:var(--accent-primary);border-bottom:1px solid var(--border-glass)}.ref-table td{padding:.85rem 1rem;border-bottom:1px solid var(--border-glass);color:var(--text-secondary)}.ref-table tbody tr{transition:background .2s}.ref-table tbody tr:hover{background:#ffffff05}.ref-table tbody tr:last-child td{border-bottom:none}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.feature-card{padding:2rem;border-radius:var(--radius-lg);background:var(--bg-card);border:1px solid var(--border-glass);transition:all .3s;position:relative;overflow:hidden}.feature-card:hover{border-color:#6366f14d;transform:translateY(-5px)}.feature-card .feature-icon{width:50px;height:50px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1.25rem}.feature-card h3{font-size:1.1rem;font-weight:600;margin-bottom:.75rem}.feature-card p{font-size:.85rem;color:var(--text-secondary);line-height:1.7}.calc-links-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.calc-link-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.5rem 1rem;border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border-glass);text-decoration:none;transition:all .3s;position:relative;overflow:hidden}.calc-link-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--gradient-primary);opacity:0;transition:opacity .3s}.calc-link-card:hover{border-color:#6366f14d;transform:translateY(-4px);box-shadow:0 8px 25px #0000004d}.calc-link-card:hover:before{opacity:1}.calc-link-icon{font-size:1.8rem;margin-bottom:.75rem}.calc-link-title{font-family:Outfit,sans-serif;font-size:.95rem;font-weight:600;color:var(--text-primary);margin-bottom:.35rem}.calc-link-desc{font-size:.8rem;color:var(--text-muted);line-height:1.5}.content-section{padding:5rem 2rem;max-width:900px;margin:0 auto}.content-section .section-header{text-align:left;margin-bottom:2.5rem}.content-section .section-title{font-size:clamp(1.6rem,3vw,2.2rem)}.content-block{margin-bottom:3rem}.content-block h3,.content-block .content-subheading,.content-subheading{font-family:Outfit,sans-serif;font-size:1.25rem;font-weight:700;margin-bottom:1rem;color:var(--text-primary);line-height:1.4}.content-block p{font-size:.95rem;color:var(--text-secondary);line-height:1.85;margin-bottom:1rem}.content-block ul,.content-block ol{padding-left:1.5rem;margin-bottom:1rem}.content-block li{font-size:.95rem;color:var(--text-secondary);line-height:1.85;margin-bottom:.4rem}.content-block strong{color:var(--text-primary)}.content-block a{color:var(--accent-primary);text-decoration:none;transition:color .2s;border-bottom:1px solid rgba(99,102,241,.3)}.content-block a:hover{color:var(--accent-secondary);border-bottom-color:var(--accent-secondary)}.footer a{transition:color .2s}.footer a:hover{color:var(--text-secondary)!important}.chart-table-wrap{overflow-x:auto;margin:1.5rem 0 2rem;border-radius:var(--radius-md);border:1px solid var(--border-glass)}.chart-table{width:100%;border-collapse:collapse;font-size:.9rem}.chart-table thead{background:#6366f114}.chart-table th{padding:.85rem 1rem;text-align:left;font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;color:var(--accent-primary);border-bottom:1px solid var(--border-glass)}.chart-table td{padding:.75rem 1rem;border-bottom:1px solid var(--border-glass);color:var(--text-secondary)}.chart-table tbody tr:hover{background:#ffffff05}.chart-table tbody tr:last-child td{border-bottom:none}.formula-highlight{display:block;padding:1rem 1.5rem;margin:1.25rem 0;border-radius:var(--radius-sm);background:#06b6d40f;font-family:Courier New,monospace;font-size:.9rem;color:var(--accent-cyan);border:1px solid rgba(6,182,212,.15);line-height:1.6;overflow-x:auto}.param-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.5rem 0}.param-card{padding:1rem 1.25rem;border-radius:var(--radius-sm);background:var(--bg-glass);border:1px solid var(--border-glass)}.param-card .param-name{font-weight:600;font-size:.85rem;color:var(--accent-primary);margin-bottom:.25rem}.param-card .param-desc{font-size:.85rem;color:var(--text-secondary);line-height:1.6}.faq-section{padding:5rem 2rem;max-width:900px;margin:0 auto}.faq-list{margin-top:2rem}.faq-item{border:1px solid var(--border-glass);border-radius:var(--radius-md);margin-bottom:.75rem;overflow:hidden;transition:border-color .3s}.faq-item:hover{border-color:#6366f133}.faq-question{width:100%;padding:1.15rem 1.5rem;display:flex;align-items:center;justify-content:space-between;background:var(--bg-glass);border:none;color:var(--text-primary);font-family:Inter,sans-serif;font-size:.95rem;font-weight:600;cursor:pointer;text-align:left;transition:background .3s}.faq-question:hover{background:#ffffff0a}.faq-question .faq-icon{font-size:1.2rem;color:var(--accent-primary);transition:transform .3s;flex-shrink:0;margin-left:1rem}.faq-item.open .faq-question .faq-icon{transform:rotate(45deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s ease;padding:0 1.5rem;background:#00000026}.faq-item.open .faq-answer{max-height:600px;padding:1.25rem 1.5rem}.faq-answer p{font-size:.9rem;color:var(--text-secondary);line-height:1.85;margin-bottom:.75rem}.faq-answer p:last-child{margin-bottom:0}.faq-answer strong{color:var(--text-primary)}.faq-answer code{display:inline-block;padding:.15rem .5rem;border-radius:4px;background:#06b6d41a;color:var(--accent-cyan);font-family:Courier New,monospace;font-size:.85rem}.footer{padding:4rem 2rem 2rem;border-top:1px solid var(--border-glass);background:var(--bg-card);margin-top:5rem}.footer-container{max-width:1200px;margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.25fr;gap:3rem;margin-bottom:3rem}@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}}@media(max-width:600px){.footer-grid{grid-template-columns:1fr;gap:2rem}}.footer-col{display:flex;flex-direction:column}.footer-logo{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;margin-bottom:1rem}.footer-logo-text{font-family:Outfit,sans-serif;font-size:1.15rem;font-weight:700;color:var(--text-primary)}.footer-logo-text span{color:var(--accent-primary)}.footer-desc{font-size:.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:1.25rem}.footer-social-links{display:flex;align-items:center;gap:.65rem;margin-bottom:1.25rem;flex-wrap:wrap}.footer-social-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm, 8px);background:var(--bg-card-hover, rgba(255, 255, 255, .05));border:1px solid var(--border-glass, rgba(255, 255, 255, .1));color:var(--text-secondary, #94a3b8);transition:all .2s ease-in-out;text-decoration:none}.footer-social-btn:hover{color:#fff!important;background:var(--accent-primary, #6366f1);border-color:var(--accent-primary, #6366f1);transform:translateY(-2px);box-shadow:0 4px 12px #6366f159}.footer-disclaimer-box{padding:.85rem 1rem;border-radius:var(--radius-sm);background:#f43f5e0a;border:1px solid rgba(244,63,94,.12)}.disclaimer-badge{display:block;font-size:.75rem;font-weight:700;color:var(--accent-rose);margin-bottom:.35rem}.disclaimer-text{font-size:.75rem;color:var(--text-muted);line-height:1.5}.footer-title{font-family:Outfit,sans-serif;font-size:.95rem;font-weight:700;color:var(--text-primary);margin-bottom:1.25rem;text-transform:uppercase;letter-spacing:.05em}.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.65rem}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.88rem;transition:color .2s}.footer-links a:hover{color:var(--accent-primary)}.footer-bottom{padding-top:2rem;border-top:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.footer-bottom p{font-size:.8rem;color:var(--text-muted)}.lang-switcher-wrap{display:flex;flex-direction:column;gap:.5rem}.lang-label{font-size:.8rem;font-weight:600;color:var(--text-secondary)}.lang-select{padding:.65rem .85rem;border-radius:var(--radius-sm);background:var(--bg-glass);border:1px solid var(--border-glass);color:var(--text-primary);font-size:.85rem;outline:none;cursor:pointer;transition:border-color .2s}.lang-select:hover,.lang-select:focus{border-color:var(--accent-primary)}.lang-select option{background:#0f172a;color:#f8fafc}.showcase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.showcase-card{display:flex;flex-direction:column;padding:1.5rem;border-radius:var(--radius-lg);background:var(--bg-card);border:1px solid var(--border-glass);text-decoration:none;transition:all .35s ease;position:relative;overflow:hidden}.showcase-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);opacity:0;transition:opacity .3s}.showcase-card:hover{border-color:#6366f159;transform:translateY(-6px);box-shadow:0 12px 35px #0006,0 0 30px #6366f114}.showcase-card:hover:before{opacity:1}.showcase-icon{font-size:2rem;margin-bottom:.75rem}.showcase-title{font-family:Outfit,sans-serif;font-size:1.05rem;font-weight:700;color:var(--text-primary);margin-bottom:.75rem}.showcase-io{font-size:.8rem;color:var(--text-secondary);margin-bottom:.3rem;padding:.3rem .6rem;border-radius:4px;background:#ffffff08;border:1px solid var(--border-glass);line-height:1.5}.showcase-io .io-label{font-weight:600;color:var(--accent-primary);font-size:.7rem;text-transform:uppercase;letter-spacing:.5px;margin-right:.3rem}.showcase-desc{font-size:.82rem;color:var(--text-muted);line-height:1.6;margin-top:.75rem;flex:1}.showcase-cta{display:inline-block;margin-top:1rem;font-size:.8rem;font-weight:600;color:var(--accent-primary);transition:color .2s,transform .2s}.showcase-card:hover .showcase-cta{color:var(--accent-secondary);transform:translate(3px)}@media(max-width:900px){.calculator-wrapper{grid-template-columns:1fr}.results-panel{position:static}.features-grid,.geometry-grid{grid-template-columns:1fr}.hero-stats{gap:1.5rem}.nav-links{display:none}.nav-menu-toggle{display:block}body.menu-open{overflow:hidden}.mobile-nav{position:fixed;inset:72px 1rem auto;z-index:1001;display:flex;flex-direction:column;gap:.35rem;padding:1rem;background:#111827f7;border:1px solid var(--border-glass);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease}.mobile-nav.open{opacity:1;pointer-events:auto;transform:translateY(0)}.mobile-nav a{color:var(--text-secondary);text-decoration:none;padding:.75rem 1rem;border-radius:var(--radius-sm)}.mobile-nav a:hover,.mobile-nav a:focus{color:var(--text-primary);background:var(--bg-glass)}.diagram-flow{flex-direction:column}.flow-arrow{transform:rotate(90deg)}.heart-viz-container{flex-direction:column}.calc-links-grid,.showcase-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.form-row{grid-template-columns:1fr}.hero h1{font-size:2rem}.calc-card,.diagram-container{padding:1.5rem}.param-grid{grid-template-columns:1fr}.content-section,.faq-section{padding:3rem 1.25rem}.showcase-grid{grid-template-columns:1fr}}.header-diagram-container{margin:1.5rem auto 3rem;max-width:900px}.diagram-glass-card{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:1.75rem;backdrop-filter:blur(16px);box-shadow:0 12px 35px #00000059;position:relative;overflow:hidden}.diagram-glass-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary)}.diagram-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem;flex-wrap:wrap;gap:.75rem}.diagram-badge{display:inline-flex;align-items:center;gap:.5rem;background:#6366f11f;border:1px solid rgba(99,102,241,.3);padding:.35rem .85rem;border-radius:9999px;font-size:.75rem;font-weight:700;color:var(--accent-primary);letter-spacing:.5px}.pulse-dot{width:8px;height:8px;background:var(--accent-emerald);border-radius:50%;box-shadow:0 0 8px var(--accent-emerald);animation:pulseDot 1.5s infinite}@keyframes pulseDot{0%{transform:scale(.95);opacity:.8}50%{transform:scale(1.3);opacity:1}to{transform:scale(.95);opacity:.8}}.diagram-subtitle{font-size:.85rem;color:var(--text-muted)}.diagram-body{display:grid;grid-template-columns:320px 1fr;gap:1.5rem;align-items:center}.svg-diagram-wrapper{background:#0a0e1a99;border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:.75rem;display:flex;justify-content:center;align-items:center}#interactive-header-svg{width:100%;max-width:320px;height:auto}.diagram-metrics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.metric-chip{background:#ffffff08;border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1rem 1.25rem;transition:all .3s ease}.metric-chip:hover{border-color:#6366f14d;background:#6366f10d;transform:translateY(-2px)}.chip-title{display:block;font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.35rem}.chip-val{font-family:Outfit,sans-serif;font-size:1.35rem;font-weight:700;color:var(--text-primary)}.chip-val small{font-size:.85rem;font-weight:500;color:var(--text-muted)}.geo-badge{font-size:.95rem!important;color:var(--accent-emerald)!important}.interactive-section-diagram{margin:2rem 0}.diagram-section-card{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1.5rem}.diagram-card-title{display:flex;align-items:center;gap:.75rem;font-family:Outfit,sans-serif;font-size:1.1rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.diagram-card-title .icon{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.diagram-card-desc{font-size:.85rem;color:var(--text-muted);margin-bottom:1.25rem}.hotspots-grid{display:grid;grid-template-columns:280px 1fr;gap:1.5rem;align-items:center}.hotspots-svg-wrap svg{width:100%;height:auto}.hotspot-node{cursor:pointer;transition:transform .2s}.hotspot-node:hover{transform:scale(1.15)}.hotspot-detail-card{background:#0a0e1ab3;border:1px solid rgba(6,182,212,.3);border-radius:var(--radius-md);padding:1.25rem}.hotspot-title{font-family:Outfit,sans-serif;font-size:1.05rem;font-weight:700;color:var(--accent-cyan);margin-bottom:.75rem}.hotspot-body p{font-size:.85rem;color:var(--text-secondary);margin-bottom:.5rem}.matrix-grid-2x2{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.5rem}.matrix-card{background:#ffffff05;border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1.25rem;cursor:pointer;transition:all .3s}.matrix-card:hover,.matrix-card.active{border-color:var(--accent-primary);background:#6366f114;transform:translateY(-2px)}.matrix-badge{display:inline-block;font-size:.7rem;font-weight:700;padding:.2rem .5rem;border-radius:4px;margin-bottom:.5rem}.normal-badge{background:#10b98126;color:var(--accent-emerald)}.warning-badge{background:#f59e0b26;color:var(--accent-amber)}.danger-badge{background:#f43f5e26;color:var(--accent-rose)}.purple-badge{background:#8b5cf626;color:var(--accent-secondary)}.matrix-name{font-weight:700;font-size:.95rem;color:var(--text-primary)}.matrix-criteria{font-size:.75rem;color:var(--accent-cyan);margin:.35rem 0;font-family:monospace}.matrix-summary{font-size:.8rem;color:var(--text-muted)}.matrix-preview-card{display:flex;align-items:center;gap:1.25rem;background:#0a0e1acc;border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1rem 1.25rem}.preview-heart-wrap svg{width:120px;height:120px}.preview-title{font-weight:700;color:var(--accent-emerald);margin-bottom:.35rem}.preview-desc{font-size:.85rem;color:var(--text-secondary)}.formula-interactive-bar{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;background:#0a0e1acc;border:1px solid var(--border-glass);padding:1rem 1.25rem;border-radius:var(--radius-md);margin-bottom:1.25rem;font-family:monospace;font-size:.95rem}.formula-term{background:#6366f126;border:1px solid rgba(99,102,241,.3);color:var(--accent-primary);padding:.35rem .75rem;border-radius:var(--radius-sm);cursor:pointer;font-family:inherit;font-size:.9rem;font-weight:700;transition:all .2s}.formula-term:hover,.formula-term.active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary);box-shadow:0 0 10px #6366f180}.formula-op{color:var(--text-muted);font-weight:700}.formula-bracket{color:var(--accent-cyan);font-weight:700}.equation-term-card{background:#ffffff05;border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1.25rem}.term-title{font-weight:700;color:var(--accent-cyan);margin-bottom:.5rem}.term-desc p{font-size:.85rem;color:var(--text-secondary);margin-bottom:.4rem}.simulator-controls{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;margin-bottom:1.25rem}.sim-slider-group label{display:block;font-size:.85rem;color:var(--text-secondary);margin-bottom:.35rem}.sim-slider-group label strong{color:var(--accent-primary)}.sim-slider{width:100%;accent-color:var(--accent-primary);cursor:pointer}.sim-results-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.sim-card{background:#ffffff05;border:1px solid var(--border-glass);padding:1rem;border-radius:var(--radius-sm);text-align:center}.sim-card.highlight-card{background:#6366f11a;border-color:#6366f14d}.sim-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;margin-bottom:.25rem}.sim-val{font-family:Outfit,sans-serif;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.sim-val small{font-size:.8rem;color:var(--text-muted)}.sim-sub{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.gauge-controls{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.25rem;flex-wrap:wrap}.gauge-sex-toggle{display:flex;gap:.5rem}.gauge-btn{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-secondary);padding:.4rem .85rem;border-radius:var(--radius-sm);font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s}.gauge-btn.active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.gauge-slider-wrap{flex:1;min-width:240px}.gauge-slider-wrap label{display:block;font-size:.85rem;color:var(--text-secondary);margin-bottom:.25rem}.gauge-slider-wrap label strong{color:var(--accent-rose)}.spectrum-bar-wrap{position:relative;margin:1.5rem 0 2rem}.spectrum-bar{display:flex;height:16px;border-radius:8px;overflow:hidden;position:relative}.spectrum-segment{flex:1;display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:700;color:#ffffffe6;text-transform:uppercase}.seg-normal{background:#10b981}.seg-mild{background:#f59e0b}.seg-moderate{background:#f97316}.seg-severe{background:#f43f5e}.spectrum-marker{position:absolute;top:-14px;transform:translate(-50%);font-size:14px;color:var(--accent-primary);transition:left .2s ease}.gauge-status-card{background:#0a0e1acc;border:1px solid var(--border-glass);padding:1rem 1.25rem;border-radius:var(--radius-md)}.gauge-status-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}.gauge-range-label{font-size:.8rem;color:var(--text-muted)}.gauge-recommendation{font-size:.85rem;color:var(--text-secondary)}.param-meters-list{display:flex;flex-direction:column;gap:1rem}.param-meter-card{background:#ffffff05;border:1px solid var(--border-glass);padding:1rem 1.25rem;border-radius:var(--radius-md)}.param-meter-header{display:flex;justify-content:space-between;margin-bottom:.5rem}.param-meter-header .param-name{font-weight:600;font-size:.85rem;color:var(--text-primary)}.param-norm-badge{font-size:.75rem;color:var(--accent-emerald);font-weight:600}.param-range-track{position:relative;height:10px;background:#ffffff0f;border-radius:5px;margin-top:.5rem}.track-segment.normal-seg{position:absolute;top:0;bottom:0;background:#10b98166;border-radius:5px}.track-marker{position:absolute;top:-20px;font-size:.75rem;font-weight:700;color:var(--accent-cyan);transform:translate(-50%)}@media(max-width:768px){.diagram-body,.hotspots-grid,.matrix-grid-2x2,.simulator-controls,.sim-results-row{grid-template-columns:1fr}}
