:root{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;color:#19243b;background:#fcfdff;font-size:15px;line-height:1.5}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid #c9342f;outline-offset:3px}button:disabled{cursor:default}main{max-width:1000px;margin:auto;padding:52px 24px 60px}h1{max-width:520px;margin:0 auto 26px;text-align:center;font-size:clamp(29px,7vw,40px);font-weight:400;line-height:1.12;letter-spacing:-.035em}h1 span{display:block;color:#c9342f}h2{font-size:20px;font-weight:500;margin:0 0 14px}h3{font-size:15px;font-weight:500;margin:0 0 5px}p{margin:0;color:#566176}.badge{display:inline-block;padding:3px 7px;border:1px solid #c9342f;border-radius:6px;color:#c9342f;background:transparent;font-size:10px;line-height:1.35;white-space:nowrap}.panel{background:#f0f2f5;border:1px solid #e1e4e8;border-radius:20px;padding:22px;margin-top:20px}.settings{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:grid;gap:6px;color:#566176;font-size:13px}.field input,.field select{width:100%;min-width:0;border:1px solid #dce0e6;border-radius:10px;background:white;color:#19243b;padding:10px}input[type=checkbox]{accent-color:#c9342f}.check{font-size:13px;color:#566176;display:flex;gap:9px;align-items:center}.model{margin:14px 0 0;font-size:13px;color:#19243b}.tabs{display:flex;gap:4px;background:#e8ebef;padding:4px;border-radius:12px;margin:22px 0}.tabs button{flex:1;border:0;border-radius:9px;padding:11px 6px;color:#566176;background:transparent;font-size:13px}.tabs button[aria-pressed=true]{background:#fff;color:#19243b;box-shadow:0 2px 6px #19243b12}.controls{display:grid;grid-template-columns:1fr 1fr;gap:24px}.range-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline;font-size:13px;color:#566176}.range-head strong{color:#c9342f;font-size:24px;font-weight:400;white-space:nowrap}input[type=range]{width:100%;accent-color:#19243b;margin:20px 0 0;cursor:pointer}.hint{margin-top:12px;font-size:12px}.totals{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}.total{border:1px solid #e1e4e8;border-radius:15px;padding:16px;background:white}.total small{color:#566176;font-size:12px}.total strong{display:block;font-weight:400;font-size:28px;margin-top:5px;line-height:1.15}.total:first-child strong{color:#c9342f}.levels{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:18px 0}.level{padding:10px 6px;background:#f0f2f5;border-radius:10px;text-align:center}.level small{font-size:10px;color:#69788e;display:block}.level strong{display:block;font-size:15px;font-weight:500}.tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:24px 0 12px}.tools h2{margin:0}.quiet{border:1px solid #dce0e6;background:white;color:#566176;border-radius:9px;padding:7px 10px;font-size:12px}.tree{height:500px;overflow:auto;border:1px solid #dfe3e8;border-radius:18px;background-color:#f7f8fa;background-image:radial-gradient(#dce0e7 1px,transparent 1px);background-size:16px 16px;overscroll-behavior:auto;scrollbar-width:thin;touch-action:pan-x pan-y}.columns{display:flex;align-items:flex-start;width:max-content;min-height:100%;padding:0 20px 26px;gap:30px}.column{width:194px;position:relative}.column+.column:before{content:'';position:absolute;width:30px;height:1px;background:#ccd3dc;left:-30px;top:132px}.column-head{position:sticky;top:0;padding:14px 0 12px;background:#f7f8fa;z-index:2;font-size:12px;color:#69788e}.column-head strong{display:block;font-size:14px;font-weight:500;color:#19243b}.node{position:relative;margin-bottom:14px;background:#fff;border:1px solid #e1e4e8;border-radius:15px;box-shadow:0 4px 12px #19243b08;overflow:hidden}.node.selected{border-color:#c9342f}.node-main{display:block;border:0;background:transparent;text-align:left;width:100%;padding:16px 15px;color:#19243b}.node-main b{display:block;font-size:15px;font-weight:500;overflow-wrap:anywhere}.node-main small{font-size:11px;color:#69788e;display:block;margin-top:10px}.node-budget{font-size:21px;display:block;letter-spacing:-.025em}.node-actions{display:flex;border-top:1px solid #edf0f3}.node-actions button{flex:1;border:0;background:transparent;padding:10px 6px;font-size:11px;color:#566176}.node-actions button+button{border-left:1px solid #edf0f3}.node-actions .expand{color:#c9342f}.node-no-invites{flex:1;padding:10px 6px;border-left:1px solid #edf0f3;font-size:10px;color:#69788e;text-align:center}.node .selected-label{color:#c9342f;font-size:11px;margin-top:9px}.add{display:block;width:100%;padding:12px;background:#fff;border:1px dashed #b9c2cf;border-radius:12px;color:#566176;font-size:12px}.empty{padding:18px;font-size:13px;color:#69788e;max-width:194px}.save-row{margin-top:24px;text-align:right}.red{border:0;border-radius:10px;background:linear-gradient(135deg,#e31e2b,#bf1424);color:#fff;padding:12px 17px;box-shadow:inset 0 1px 0 #ffffff30,0 4px 10px #b3192426;font-weight:500;font-size:14px}.save-row .hint{max-width:430px;margin:10px 0 0 auto}.note{margin-top:26px;padding-top:20px;border-top:1px solid #e1e4e8;font-size:13px}.note summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:10px;align-items:center}.note > summary:after{content:'+';font-size:20px;color:#c9342f}.note[open] > summary:after{content:'−'}.note p{font-size:13px;margin-top:12px}.budget-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:14px}.budget-table td,.budget-table th{padding:10px 7px;border-bottom:1px solid #e1e4e8;text-align:left;font-weight:400}.budget-table th{color:#69788e}.budget-table td:first-child{white-space:nowrap}dialog{border:1px solid #dce0e6;background:#fcfdff;border-radius:20px;width:min(440px,calc(100vw - 30px));padding:24px;color:#19243b;max-height:calc(100dvh - 32px);overflow:auto}dialog::backdrop{background:#19243b66;backdrop-filter:blur(3px)}dialog .field{margin-top:16px}dialog .buttons{display:flex;gap:10px;justify-content:space-between;margin-top:24px}.delete{border:0;background:transparent;color:#c9342f;font-size:13px;padding:8px}.error{color:#c9342f;font-size:12px;margin-top:12px}.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);border:1px solid #e1e4e8;background:white;box-shadow:0 8px 25px #19243b25;padding:10px 14px;border-radius:12px;z-index:5;font-size:13px;display:flex;gap:12px;align-items:center}.toast[hidden],[hidden]{display:none!important}@media(max-width:520px){main{padding:42px 19px}.panel{padding:18px}.settings{grid-template-columns:1fr;gap:14px}.controls{grid-template-columns:1fr;gap:20px}.levels{grid-template-columns:repeat(3,1fr)}.tools h2{font-size:18px}.tree{height:470px}.total strong{font-size:25px}.red{font-size:12px}.badge{font-size:9px}}

.manual-guide{margin-top:18px;padding:16px;border:1px solid #e1e4e8;border-radius:14px;background:#fff}.manual-guide .hint{margin-top:8px}.manual-guide button{margin-top:14px}
.calculator-fab{position:fixed;right:calc(18px + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:30;display:flex;align-items:center;justify-content:center;width:56px;height:56px;padding:0;border:0;border-radius:50%;background:linear-gradient(135deg,#e31e2b,#bf1424);color:#fff;box-shadow:inset 0 1px 0 #ffffff30,0 5px 18px #a3152433;transition:transform .18s,box-shadow .18s;touch-action:manipulation}.calculator-fab svg{width:26px;height:30px;pointer-events:none}.calculator-fab:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 #ffffff30,0 7px 22px #a3152444}.calculator-fab:active{transform:scale(.95)}#partner-results{scroll-margin-top:16px}main{padding-bottom:calc(96px + env(safe-area-inset-bottom,0px))}.toast{bottom:calc(92px + env(safe-area-inset-bottom,0px))}@media(prefers-reduced-motion:reduce){.calculator-fab{transition:none}}

/* Three opening pulses, then one gentle reminder every thirty seconds. */
.calculator-fab::before,.calculator-fab::after{content:"";position:absolute;inset:0;border:1.5px solid rgba(215,25,32,.6);border-radius:50%;pointer-events:none;opacity:0;transform:scale(1);box-shadow:0 0 12px rgba(215,25,32,.15)}
.calculator-fab::before{animation:calculator-opening-pulse 1.15s ease-out 3}
.calculator-fab::after{animation:calculator-reminder-pulse 30s linear 30s infinite}
@keyframes calculator-opening-pulse{0%{opacity:.65;transform:scale(1)}100%{opacity:0;transform:scale(1.65)}}
@keyframes calculator-reminder-pulse{0%{opacity:.6;transform:scale(1)}4%,100%{opacity:0;transform:scale(1.65)}}
@media(prefers-reduced-motion:reduce){.calculator-fab::before,.calculator-fab::after{animation:none}}