/* ==========================================================================
   Tools design system — "Paper & Ink" editorial fintech.
   Shared by every page under /tools/. Zero kundli DNA.
   Version with ?v=N on every change (Pages caches CSS 4h, HTML 0s).
   ========================================================================== */

:root{
  --paper:#FAF7F2;
  --paper-deep:#F3EDE2;
  --card:#FFFFFF;
  --ink:#1A2744;
  --ink-soft:#2C3B5C;
  --muted:#5B6B8C;
  --faint:#8A97B3;
  --line:#E7DECF;
  --line-soft:#F0E9DB;
  --emerald:#0E7C5B;
  --emerald-deep:#0A5C44;
  --emerald-ink:#0B4A37;
  --emerald-soft:#E4F2EB;
  --emerald-faint:#EFF7F3;
  --amber:#E9A13B;
  --amber-deep:#C77F1A;
  --amber-soft:#FCF1DC;
  --rose:#C4554D;
  --rose-soft:#F9E9E7;
  --sky:#2F6FED;
  --sky-soft:#E8EFFE;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(26,39,68,.07);
  --shadow-sm:0 4px 14px rgba(26,39,68,.06);
  --font-display:"Fraunces",Georgia,"Times New Roman",serif;
  --font-ui:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.8,.28,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-ui);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--emerald-soft);color:var(--emerald-ink)}

h1,h2,h3,.display{font-family:var(--font-display);line-height:1.15;letter-spacing:-.01em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:650}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:600}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
a{color:var(--emerald-deep);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
.section{padding:64px 0}
/* anchor targets clear the sticky header */
.section,.tabpanel{scroll-margin-top:88px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--emerald-deep);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--emerald);border-radius:2px}
.lede{font-size:1.12rem;color:var(--muted);max-width:640px}

/* ---------- top nav ---------- */
.tnav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,242,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.tnav-in{max-width:1140px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:18px}
.tbrand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.35rem;color:var(--ink);text-decoration:none}
.tbrand:hover{text-decoration:none}
.tbrand svg{width:34px;height:34px;display:block}
.tnav-links{display:flex;gap:4px;margin-left:8px;overflow-x:auto;scrollbar-width:none}
.tnav-links::-webkit-scrollbar{display:none}
.tnav-links a{
  white-space:nowrap;padding:8px 14px;border-radius:999px;color:var(--muted);
  font-weight:600;font-size:.92rem;text-decoration:none;transition:background .2s var(--ease),color .2s;
}
.tnav-links a:hover{background:var(--emerald-faint);color:var(--emerald-ink);text-decoration:none}
.tnav-links a.on{background:var(--emerald);color:#fff}
.lang-toggle{margin-left:auto;display:flex;background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px;flex:none}
.lang-toggle button{
  border:0;background:transparent;cursor:pointer;font:600 .82rem var(--font-ui);
  padding:6px 14px;border-radius:999px;color:var(--muted);transition:all .2s var(--ease);
}
.lang-toggle button.on{background:var(--ink);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 54px}
.hero-blobs{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-blobs i{
  position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;
  animation:drift 26s ease-in-out infinite alternate;will-change:transform;
}
.hero-blobs i:nth-child(1){width:480px;height:480px;left:-140px;top:-120px;background:#BFE3D2}
.hero-blobs i:nth-child(2){width:420px;height:420px;right:-120px;top:-60px;background:#F6DFAE;animation-delay:-9s}
.hero-blobs i:nth-child(3){width:340px;height:340px;left:38%;bottom:-180px;background:#D8E6F7;animation-delay:-17s}
@keyframes drift{
  from{transform:translate3d(0,0,0) scale(1)}
  to{transform:translate3d(46px,34px,0) scale(1.12)}
}
.hero-in{position:relative}
.hero h1{max-width:720px}
.hero h1 .hl{color:var(--emerald-deep);position:relative;white-space:nowrap}
.hero h1 .hl svg{position:absolute;left:0;right:0;bottom:-.12em;width:100%;height:.32em}

/* trust strip */
.trust{display:flex;flex-wrap:wrap;gap:10px 26px;margin:26px 0 0;padding:0;list-style:none}
.trust li{display:flex;align-items:center;gap:9px;font-weight:600;font-size:.95rem;color:var(--ink-soft)}
.trust li svg{width:20px;height:20px;flex:none;color:var(--emerald-deep)}
.trust li small{display:block;font-weight:500;color:var(--muted);font-size:.8rem;line-height:1.3}

/* airplane badge */
.airbadge{
  display:inline-flex;align-items:center;gap:10px;margin-top:22px;
  background:var(--ink);color:#fff;border-radius:999px;padding:9px 18px 9px 12px;
  font-size:.88rem;font-weight:600;
}
.airbadge svg{width:22px;height:22px}
.airbadge em{font-style:normal;opacity:.72;font-weight:500}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:28px;
}
.card.tight{padding:20px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:860px){.grid2,.grid3{grid-template-columns:1fr}.section{padding:44px 0}.hero{padding:52px 0 40px}}

/* ---------- fields / sliders ---------- */
.field{margin-bottom:22px}
.field-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.field-head label{font-weight:600;font-size:.95rem}
.field-head .val{font-family:var(--font-display);font-weight:700;font-size:1.25rem;color:var(--emerald-deep)}
.numrow{display:flex;gap:10px;margin-top:10px}
input[type=text],input[type=number],select{
  font:500 1rem var(--font-ui);color:var(--ink);
  border:1.5px solid var(--line);border-radius:var(--radius-sm);
  padding:11px 14px;background:#fff;width:100%;
  transition:border-color .2s,box-shadow .2s;
}
input:focus,select:focus{outline:none;border-color:var(--emerald);box-shadow:0 0 0 3px var(--emerald-soft)}
.unit-wrap{position:relative;flex:1}
.unit-wrap .unit{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--faint);font-weight:600;font-size:.9rem;pointer-events:none}
.unit-wrap input{padding-right:52px}

input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:26px;background:transparent;cursor:pointer;--fill:50%}
input[type=range]::-webkit-slider-runnable-track{
  height:8px;border-radius:99px;
  background:linear-gradient(to right,var(--emerald) 0 var(--fill),var(--line-soft) var(--fill) 100%);
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:24px;height:24px;border-radius:50%;
  background:#fff;border:3px solid var(--emerald);margin-top:-8px;
  box-shadow:0 2px 8px rgba(14,124,91,.35);transition:transform .15s var(--ease);
}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}
input[type=range]::-moz-range-track{height:8px;border-radius:99px;background:var(--line-soft)}
input[type=range]::-moz-range-progress{height:8px;border-radius:99px;background:var(--emerald)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--emerald);box-shadow:0 2px 8px rgba(14,124,91,.35)}

.seg{display:flex;background:var(--paper-deep);border-radius:999px;padding:4px;gap:4px}
.seg button{
  flex:1;border:0;background:transparent;cursor:pointer;border-radius:999px;
  font:600 .88rem var(--font-ui);color:var(--muted);padding:8px 10px;transition:all .2s var(--ease);
}
.seg button.on{background:#fff;color:var(--emerald-ink);box-shadow:var(--shadow-sm)}

details.adv{border:1px dashed var(--line);border-radius:var(--radius-sm);padding:0 16px;margin-top:6px;background:var(--paper)}
details.adv summary{cursor:pointer;font-weight:600;padding:13px 0;color:var(--ink-soft);list-style:none;display:flex;justify-content:space-between;align-items:center}
details.adv summary::-webkit-details-marker{display:none}
details.adv summary::after{content:"+";font-size:1.3rem;color:var(--emerald-deep);font-weight:400}
details.adv[open] summary::after{content:"–"}
details.adv .adv-body{padding:2px 0 18px}

/* ---------- result headlines ---------- */
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.stat .k{font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stat .v{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--ink);margin:4px 0 2px;font-variant-numeric:tabular-nums}
.stat .v em{font-style:normal;font-size:1.1rem;color:var(--faint)}
.stat .s{font-size:.85rem;color:var(--muted)}
.stat.hero-stat{background:linear-gradient(135deg,var(--emerald-deep),var(--emerald));border:0;color:#fff}
.stat.hero-stat .k,.stat.hero-stat .s{color:rgba(255,255,255,.78)}
.stat.hero-stat .v{color:#fff}
.stat.win{border-color:#bfe0d1;background:var(--emerald-faint)}
.stat.warn{border-color:#f0d9a8;background:var(--amber-soft)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:0;border-radius:999px;
  font:700 .95rem var(--font-ui);padding:13px 26px;transition:transform .15s var(--ease),box-shadow .2s,background .2s;
  text-decoration:none;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--emerald);color:#fff;box-shadow:0 8px 20px rgba(14,124,91,.28)}
.btn-primary:hover{background:var(--emerald-deep);text-decoration:none;color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--ink-soft);text-decoration:none;color:#fff}
.btn-ghost{background:#fff;border:1.5px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--emerald);color:var(--emerald-ink);text-decoration:none}
.btn svg{width:18px;height:18px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 14px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:none;border:1.5px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;
  border-radius:999px;padding:10px 20px;font:700 .92rem var(--font-ui);transition:all .2s var(--ease);white-space:nowrap;
}
.tab:hover{border-color:var(--emerald);color:var(--emerald-ink)}
.tab.on{background:var(--ink);border-color:var(--ink);color:#fff}
.tabpanel{display:none}
.tabpanel.on{display:block;animation:fadeUp .45s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- tables ---------- */
.twrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
table.data{width:100%;border-collapse:collapse;font-size:.9rem;min-width:640px}
table.data thead th{
  position:sticky;top:0;background:var(--ink);color:#fff;text-align:right;
  font-weight:600;padding:12px 14px;white-space:nowrap;font-size:.82rem;letter-spacing:.02em;
}
table.data thead th:first-child,table.data tbody td:first-child{text-align:left}
table.data tbody td{padding:11px 14px;text-align:right;border-top:1px solid var(--line-soft);font-variant-numeric:tabular-nums}
table.data tbody tr:nth-child(even){background:#FCFAF5}
table.data tfoot td{background:var(--emerald-faint);font-weight:700;padding:12px 14px;text-align:right;border-top:2px solid var(--emerald)}
table.data tfoot td:first-child{text-align:left}

/* ---------- charts ---------- */
.chart-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.chart-card h3{margin-bottom:4px}
.chart-card .sub{color:var(--muted);font-size:.88rem;margin-bottom:14px}
.legend{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:12px;font-size:.88rem;color:var(--muted)}
.legend i{display:inline-block;width:12px;height:12px;border-radius:4px;margin-right:7px;vertical-align:baseline}
.donut-wrap{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.donut-c{position:relative;width:190px;height:190px;flex:none}
.donut-c svg{width:100%;height:100%;transform:rotate(-90deg)}
.donut-c .ctr{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.donut-c .ctr b{font-family:var(--font-display);font-size:1.5rem}
.donut-c .ctr span{font-size:.75rem;color:var(--muted);font-weight:600}

/* ---------- narrative / tips ---------- */
.narrative{
  border-left:4px solid var(--emerald);background:var(--emerald-faint);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:18px 22px;margin:22px 0;
  font-size:1.02rem;
}
.narrative b{color:var(--emerald-ink)}
.tip{
  display:flex;gap:12px;background:var(--amber-soft);border:1px solid #f0d9a8;
  border-radius:var(--radius-sm);padding:15px 18px;margin:14px 0;font-size:.94rem;align-items:flex-start;
}
.tip svg{width:22px;height:22px;flex:none;color:var(--amber-deep);margin-top:2px}
.tip b{color:#7A5410}

/* ---------- FAQ ---------- */
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:17px 20px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--emerald-deep);font-size:1.4rem;font-weight:400;flex:none;transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 20px 18px;color:var(--muted)}

/* ---------- tool tiles (hub + crosslink) ---------- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.tiles{grid-template-columns:1fr}}
.tile{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-sm);text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;
  transition:transform .25s var(--ease),box-shadow .25s;position:relative;overflow:hidden;
}
.tile:hover{text-decoration:none;transform:translateY(-5px);box-shadow:var(--shadow)}
.tile .tic{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:var(--emerald-soft);color:var(--emerald-deep)}
.tile .tic svg{width:28px;height:28px}
.tile h3{margin:0;font-size:1.2rem}
.tile p{margin:0;color:var(--muted);font-size:.93rem;flex:1}
.tile .go{font-weight:700;color:var(--emerald-deep);font-size:.92rem;display:flex;align-items:center;gap:6px}
.tile.soon{opacity:.75}
.badge{
  display:inline-block;font:700 .72rem var(--font-ui);letter-spacing:.08em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;
}
.badge.live{background:var(--emerald);color:#fff}
.badge.soon{background:var(--paper-deep);color:var(--muted);border:1px solid var(--line)}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}

/* skeleton shimmer */
.shimmer{position:relative;overflow:hidden;background:var(--line-soft);border-radius:8px;color:transparent!important}
.shimmer::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.75) 50%,transparent 80%);
  animation:shim 1.4s infinite;
}
@keyframes shim{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* ---------- footer ---------- */
.tfoot{border-top:1px solid var(--line);margin-top:70px;padding:34px 0 44px;color:var(--muted);font-size:.9rem}
.tfoot .wrap{display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;justify-content:space-between}
.tfoot .promise{display:flex;gap:18px;flex-wrap:wrap;font-weight:600;color:var(--ink-soft)}

/* misc */
.kv{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.kv:last-child{border-bottom:0}
.kv b{font-variant-numeric:tabular-nums}
.pill{display:inline-block;background:var(--emerald-soft);color:var(--emerald-ink);font-weight:700;font-size:.8rem;padding:4px 12px;border-radius:999px}
.callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:16px 20px;margin:18px 0;font-size:.94rem}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.mt{margin-top:22px}
.center{text-align:center}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
  html{scroll-behavior:auto}
  .hero-blobs{display:none}
  .rv{opacity:1;transform:none}
}