:root {
  --bg: #f5f8fd;
  --card: rgba(255,255,255,.88);
  --text: #0d1326;
  --muted: #6d7690;
  --line: rgba(30,45,80,.08);
  --blue: #1967ff;
  --violet: #7d18ef;
  --pink: #ef1f68;
  --green: #0b9a53;
  --orange: #f07820;
  --danger: #d71f2b;
  --shadow: 0 20px 60px rgba(26,39,72,.10);
  --radius: 28px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{background:#eef3fb}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text",Inter,Segoe UI,sans-serif;color:var(--text);background:linear-gradient(180deg,#f7faff 0,#f1f5fb 100%);min-height:100vh}
button,input{font:inherit}
button{border:0;background:none;color:inherit}
.desktop-bg{position:fixed;inset:0;pointer-events:none;background:
radial-gradient(circle at 18% 8%,rgba(45,111,255,.16),transparent 30%),
radial-gradient(circle at 83% 16%,rgba(151,48,245,.14),transparent 28%),
radial-gradient(circle at 74% 82%,rgba(11,154,83,.10),transparent 26%)}
.app-shell{position:relative;max-width:470px;min-height:100vh;margin:0 auto;padding:calc(22px + env(safe-area-inset-top)) 18px calc(118px + env(safe-area-inset-bottom));overflow:hidden}
.app-shell::before{content:"";position:absolute;z-index:-1;left:-80px;right:-80px;top:-150px;height:420px;background:linear-gradient(135deg,#133cc7 0%,#5523ce 48%,#e82c91 100%);border-radius:0 0 46% 46%;opacity:.10;filter:blur(2px)}
.app-header{display:flex;align-items:flex-start;justify-content:space-between;padding:4px 8px 22px}
.eyebrow{margin:0 0 4px;font-size:11px;letter-spacing:.16em;font-weight:800;color:#7b4ef2}
.app-header h1{font-size:46px;line-height:1.0;letter-spacing:-.045em;margin:0;font-weight:850}
.subhead{margin:7px 0 0;font-size:21px;color:var(--muted);font-weight:500}
.icon-button{width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.55);box-shadow:inset 0 0 0 1px rgba(255,255,255,.8);font-size:20px;font-weight:800;color:#263150;backdrop-filter:blur(16px)}
.page{display:none}.page.active{display:block;animation:fadeIn .24s ease both}@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.glass-card,.person-card,.detail-card,.settings-card,.formula-note,.insight-card,.payment-hero,.timeline-card,.mini-card{background:var(--card);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}
.hero-card{border-radius:32px;padding:22px;position:relative;overflow:hidden}
.hero-card::after{content:"";position:absolute;width:240px;height:150px;border-radius:50%;right:-80px;bottom:-90px;background:linear-gradient(120deg,rgba(41,121,255,.12),rgba(234,61,187,.17));transform:rotate(-17deg);filter:blur(1px);pointer-events:none}
.card-heading{display:flex;gap:14px;align-items:center;margin-bottom:16px}.card-heading h2{font-size:24px;line-height:1.1;margin:0;font-weight:800;letter-spacing:-.025em}.card-heading p{margin:5px 0 0;font-size:15px;color:var(--muted)}
.round-icon,.mini-icon,.avatar{display:grid;place-items:center;flex:0 0 auto;border-radius:50%;font-weight:900}.round-icon{width:52px;height:52px;font-size:28px}.mini-icon{width:44px;height:44px;font-size:20px}.avatar{width:42px;height:42px;font-size:14px}
.purple{background:#f0e4ff;color:#7417de}.pink{background:#ffe6ef;color:#e71961}.blue{background:#e5f0ff;color:#1565d8}.green{background:#e4f7ed;color:#09894a}.violet{background:#eee7ff;color:#6c16d8}.orange{background:#fff0df;color:#e7640b}
.metric-grid{display:grid;grid-template-columns:1fr 1fr}.metric{min-width:0;display:flex;align-items:center;gap:12px;padding:16px 6px;border-top:1px solid var(--line);text-align:left}.metric:nth-child(-n+2){border-top:0}.metric:nth-child(odd){padding-right:14px;border-right:1px solid var(--line)}.metric:nth-child(even){padding-left:14px}.metric-wide{grid-column:1/-1;border-right:0!important}.metric small{display:block;font-size:14px;color:var(--muted);margin-bottom:5px}.metric strong{display:block;font-size:22px;letter-spacing:-.025em;white-space:nowrap}.editable{cursor:pointer}.editable:active{opacity:.6}.danger{color:var(--danger)!important}.positive{color:var(--green)!important}
.section-title{padding:28px 9px 14px}.section-title.page-top{padding-top:4px}.section-title h2{font-size:31px;letter-spacing:-.04em;margin:0;font-weight:850}.section-title p{font-size:16px;line-height:1.4;color:var(--muted);margin:6px 0 0}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.person-card{border-radius:26px;padding:16px 14px;min-width:0;overflow:hidden}.person-card.partner{background:linear-gradient(145deg,rgba(246,250,255,.96),rgba(239,247,255,.92))}.person-card.me{background:linear-gradient(145deg,rgba(255,255,255,.97),rgba(242,251,247,.94))}.person-heading{display:flex;align-items:center;gap:10px;margin-bottom:12px}.person-heading h3{font-size:21px;margin:0;letter-spacing:-.03em}.row{display:flex;width:100%;align-items:center;justify-content:space-between;padding:12px 0;border-top:1px solid var(--line);font-size:14px;text-align:left}.row span{color:#68728f}.row strong{font-size:15px}.share-pill{display:flex;align-items:center;gap:11px;margin-top:10px;padding:12px;border-radius:17px;background:linear-gradient(135deg,#fff1f4,#ffebef)}.share-pill small{display:block;color:#755b66;margin-bottom:3px}.share-pill strong{font-size:18px;color:#d31f2d;white-space:nowrap}.pie-icon{width:39px;height:39px;border-radius:50%;background:conic-gradient(#ef3245 0 25%,#ff7c8c 25% 70%,#ffc0c7 70% 100%);box-shadow:inset 0 0 0 3px rgba(255,255,255,.6)}
.insight-card{border-radius:26px;padding:20px;margin-top:14px;display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,rgba(247,248,255,.94),rgba(244,240,255,.92))}.insight-card h3{margin:0 0 6px;font-size:20px}.insight-card p:not(.eyebrow){margin:0;color:var(--muted);font-size:14px;line-height:1.45}.donut{--pct:32;position:relative;flex:0 0 auto;width:94px;height:94px;border-radius:50%;background:conic-gradient(var(--green) calc(var(--pct)*1%),#edf0f6 0);display:grid;place-items:center}.donut::after{content:"";position:absolute;width:69%;height:69%;border-radius:50%;background:white}.donut span{position:relative;z-index:2;font-size:15px;font-weight:800}.donut.small{width:82px;height:82px}.donut.small span{font-size:13px}
.detail-card{border-radius:28px;padding:20px;margin-bottom:14px;overflow:hidden;position:relative}.detail-card::before{content:"";position:absolute;right:-60px;top:-90px;width:220px;height:190px;border-radius:50%;opacity:.17;filter:blur(2px)}.accent-blue::before{background:linear-gradient(135deg,#1c73ff,#8127e6)}.accent-green::before{background:linear-gradient(135deg,#1dd58a,#36a7ff)}.detail-head{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:15px}.detail-head h2{font-size:31px;margin:2px 0 1px;letter-spacing:-.045em}.detail-head span{color:var(--muted);font-size:13px}.detail-list{position:relative}.detail-list>div,.detail-list>button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:18px;padding:15px 2px;border-top:1px solid var(--line);text-align:left}.detail-list span{color:#68728f;font-size:14px}.detail-list strong{font-size:16px;white-space:nowrap}
.payment-hero{border-radius:30px;padding:23px;background:linear-gradient(145deg,#132f8b 0%,#4620c0 53%,#b02ac5 100%);color:white}.payment-hero .eyebrow{color:#cfcbff}.big-edit{display:flex;align-items:center;gap:12px;color:white;padding:0}.big-edit strong{font-size:45px;letter-spacing:-.05em}.big-edit span{font-size:12px;border:1px solid rgba(255,255,255,.32);padding:6px 10px;border-radius:999px}.bar{height:12px;border-radius:999px;background:rgba(255,255,255,.23);margin-top:22px;overflow:hidden}.bar i{display:block;width:32%;height:100%;background:linear-gradient(90deg,#52efb2,#9cf4d3);border-radius:999px}.bar-labels{display:flex;justify-content:space-between;margin-top:10px;font-size:12px;color:#e4e0ff}.bar-labels b{color:white}.repayment-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.mini-card{border-radius:23px;padding:16px}.mini-card p{margin:0 0 9px;color:var(--muted);font-size:13px}.mini-card button{text-align:left}.mini-card strong{display:block;font-size:24px;letter-spacing:-.03em}.mini-card span{font-size:12px;color:var(--muted)}
.timeline-card{border-radius:24px;padding:20px;display:flex;align-items:center;justify-content:space-between;text-align:center}.timeline-card div:not(.arrow){flex:1}.timeline-card small,.timeline-card span{display:block;color:var(--muted);font-size:12px}.timeline-card strong{display:block;font-size:29px;margin:4px 0}.timeline-card .arrow{font-size:25px;color:#9aa2b4}.compact{margin-top:14px}
.settings-card{border-radius:27px;overflow:hidden}.settings-card button{display:flex;width:100%;justify-content:space-between;align-items:center;padding:18px 20px;border-top:1px solid var(--line);text-align:left}.settings-card button:first-child{border-top:0}.settings-card span{color:#5f6985}.settings-card strong{font-size:16px}.formula-note{border-radius:25px;padding:20px;margin-top:14px;background:linear-gradient(145deg,#f6f1ff,#f7fbff)}.formula-note h3{margin:0 0 7px;font-size:18px}.formula-note p{margin:0;color:var(--muted);line-height:1.55;font-size:14px}.reset-button{width:100%;margin-top:18px;padding:15px;border-radius:17px;background:#fff0f2;color:#cb1e34;font-weight:750}
.tab-bar{position:fixed;z-index:20;left:50%;bottom:calc(10px + env(safe-area-inset-bottom));transform:translateX(-50%);width:min(calc(100% - 26px),445px);display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:8px;border-radius:26px;background:rgba(255,255,255,.90);border:1px solid rgba(255,255,255,.9);box-shadow:0 16px 45px rgba(25,38,74,.18);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}.tab{display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 4px;border-radius:18px;color:#7a839d}.tab span{font-size:23px;line-height:1}.tab small{font-size:11px;font-weight:650}.tab.active{background:linear-gradient(135deg,#f6efff,#eef5ff);color:#7117df}.tab.active small{font-weight:800}
.sheet-backdrop{position:fixed;inset:0;z-index:40;background:rgba(10,14,27,.30);opacity:0;pointer-events:none;transition:.24s;backdrop-filter:blur(3px)}.sheet-backdrop.show{opacity:1;pointer-events:auto}.bottom-sheet{position:fixed;z-index:41;left:50%;bottom:0;transform:translate(-50%,105%);width:min(100%,500px);background:#fff;border-radius:30px 30px 0 0;padding:10px 22px calc(24px + env(safe-area-inset-bottom));box-shadow:0 -18px 60px rgba(20,28,55,.22);transition:transform .28s cubic-bezier(.2,.85,.25,1)}.bottom-sheet.show{transform:translate(-50%,0)}.grabber{width:42px;height:5px;border-radius:999px;background:#d7dbe5;margin:0 auto 16px}.sheet-head{display:flex;justify-content:space-between;align-items:start}.sheet-head h2{margin:0;font-size:28px;letter-spacing:-.04em}.close-sheet{width:36px;height:36px;border-radius:50%;background:#f2f4f8;font-size:24px;color:#6a7286}.amount-input{margin-top:20px;border:2px solid #7d36ed;border-radius:18px;display:flex;align-items:center;padding:0 16px;height:66px;box-shadow:0 0 0 5px rgba(125,54,237,.06)}.amount-input span{font-size:22px;font-weight:750;color:#6a1ddb}.amount-input input{width:100%;border:0;outline:0;font-size:30px;font-weight:800;letter-spacing:-.03em;padding:0 8px;background:transparent;color:var(--text)}.input-help{font-size:13px;color:var(--muted);margin:10px 4px 20px}.primary-button{width:100%;padding:16px;border-radius:17px;color:white;font-weight:800;background:linear-gradient(135deg,#1967ff,#7d18ef);box-shadow:0 10px 26px rgba(89,43,213,.23)}
.toast{position:fixed;z-index:60;left:50%;bottom:120px;transform:translate(-50%,20px);background:#0c1328;color:white;border-radius:999px;padding:10px 16px;font-size:13px;font-weight:700;opacity:0;pointer-events:none;transition:.22s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media (max-width:390px){.app-shell{padding-left:12px;padding-right:12px}.app-header h1{font-size:41px}.hero-card{padding:18px}.metric{gap:9px}.mini-icon{width:38px;height:38px}.metric strong{font-size:19px}.split-grid{gap:8px}.person-card{padding:14px 11px}.row{font-size:13px}.share-pill{padding:10px 9px}.share-pill strong{font-size:16px}}
@media (min-width:700px){body{padding:30px}.app-shell{min-height:900px;border-radius:48px;box-shadow:0 35px 120px rgba(25,38,74,.22);background:rgba(248,250,254,.84);border:8px solid #11131a}.tab-bar{bottom:42px}}