/* FinCalcTools — Dark neon theme. Rebranded from QTool. */
:root {
  --bg-primary: #191c23;
  --bg-secondary: #22252e;
  --bg-card: #2b2f3a;
  --bg-input: #353a47;
  --text-primary: #f0f0f5;
  --text-secondary: #a8a8b8;
  --text-muted: #9e9eae;
  --accent-cyan: #00d4ff;
  --accent-magenta: #ff00aa;
  --accent-yellow: #ffd000;
  --accent-green: #00ff88;
  --accent-orange: #ff6b35;
  --gradient-1: linear-gradient(135deg, #00d4ff 0%, #ff00aa 100%);
  --gradient-2: linear-gradient(135deg, #ff6b35 0%, #ffd000 100%);
  --gradient-3: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
  --border-color: #454b5c;
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Outfit', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}
.bg-pattern { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.bg-pattern::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(0,212,255,.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(255,0,170,.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255,208,0,.03) 0%, transparent 70%);
  animation: bgFloat 20s ease-in-out infinite;
}
@keyframes bgFloat { 0%,100%{transform:translate(0,0) rotate(0)} 33%{transform:translate(2%,2%) rotate(1deg)} 66%{transform:translate(-1%,1%) rotate(-1deg)} }

/* header */
header { position: relative; z-index: 10; padding: 60px 20px 8px; text-align: center; }
h1 { font-size: 2rem; font-weight: 700; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.tagline { color: var(--text-secondary); font-size: 1rem; font-weight: 300; max-width: 720px; margin: 8px auto 0; }

main { position: relative; z-index: 10; max-width: 1200px; margin: 0 auto; padding: 20px 20px 12px; }

/* card */
.card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 32px; margin-bottom: 24px; box-shadow: var(--shadow-glow); }
.card-header { display: flex; align-items: center; gap: 16px; margin-bottom: 26px; }
.card-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 28px; flex-shrink: 0; }
.card-icon.cyan { background: linear-gradient(135deg, rgba(0,212,255,.2), rgba(0,212,255,.05)); border: 1px solid rgba(0,212,255,.3); }
.card-icon.magenta { background: linear-gradient(135deg, rgba(255,0,170,.2), rgba(255,0,170,.05)); border: 1px solid rgba(255,0,170,.3); }
.card-icon.yellow { background: linear-gradient(135deg, rgba(255,208,0,.2), rgba(255,208,0,.05)); border: 1px solid rgba(255,208,0,.3); }
.card-icon.green { background: linear-gradient(135deg, rgba(0,255,136,.2), rgba(0,255,136,.05)); border: 1px solid rgba(0,255,136,.3); }
.card-icon.orange { background: linear-gradient(135deg, rgba(255,107,53,.2), rgba(255,107,53,.05)); border: 1px solid rgba(255,107,53,.3); }
.card-title { font-size: 1.5rem; font-weight: 600; }
.card-desc { color: var(--text-secondary); font-size: .9rem; }

/* form */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 26px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: .7rem; font-weight: 500; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; }
input, select {
  padding: 12px 14px; background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-sm); color: var(--text-primary); font-family: 'JetBrains Mono', monospace; font-size: .9rem; transition: all .3s;
}
input:focus, select:focus { outline: none; border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(0,212,255,.15); }
input::placeholder { color: var(--text-muted); }

/* buttons */
.btn { padding: 16px 32px; border: none; border-radius: var(--radius-sm); font-family: 'Outfit', sans-serif; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all .3s; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 24px; }
.btn-primary { background: var(--gradient-1); color: #0f1218; box-shadow: 0 4px 20px rgba(0,212,255,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,212,255,.4); }
.btn-secondary { background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { border-color: var(--accent-cyan); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }

/* results */
.results-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 28px; }
.result-item { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 20px; text-align: center; transition: all .3s; }
.result-item:hover { border-color: var(--accent-cyan); transform: translateY(-2px); }
.result-label { font-size: .72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.result-value { font-family: 'JetBrains Mono', monospace; font-size: 1.32rem; font-weight: 600; }
.result-value.cyan { color: var(--accent-cyan); } .result-value.magenta { color: var(--accent-magenta); }
.result-value.yellow { color: var(--accent-yellow); } .result-value.green { color: var(--accent-green); }
.result-value.orange { color: var(--accent-orange); }

/* chart + table */
.chart-container { position: relative; height: 300px; margin-top: 20px; padding: 20px; background: var(--bg-secondary); border-radius: var(--radius-sm); border: 1px solid var(--border-color); }
.table-container { overflow-x: auto; margin-top: 20px; border-radius: var(--radius-sm); border: 1px solid var(--border-color); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { background: var(--bg-secondary); padding: 14px 16px; text-align: left; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; font-size: .75rem; letter-spacing: .5px; }
td { padding: 12px 16px; border-top: 1px solid var(--border-color); font-family: 'JetBrains Mono', monospace; font-size: .85rem; }
tr:hover td { background: var(--bg-secondary); }

/* faq */
.faq { margin-top: 28px; }
.faq h2 { font-size: 1.2rem; font-weight: 600; margin-bottom: 14px; }
.faq-item { border-bottom: 1px solid var(--border-color); }
.faq-q { width: 100%; text-align: left; display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 15px 0; font-size: .95rem; font-weight: 500; cursor: pointer; background: none; border: 0; color: var(--text-primary); font-family: 'Outfit', sans-serif; }
.faq-q svg { transition: transform .2s; color: var(--text-muted); flex-shrink: 0; }
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 0 16px; font-size: .9rem; line-height: 1.65; color: var(--text-secondary); }
.faq-item.open .faq-a { display: block; }

.note-line { color: var(--text-muted); font-size: .85rem; margin-top: 14px; line-height: 1.6; }
.disclaimer { color: var(--text-muted); font-size: .82rem; line-height: 1.6; margin-top: 18px; margin-bottom: 0; border-top: 1px solid var(--border-color); padding-top: 16px; }

.hidden { display: none !important; }
.mt-4 { margin-top: 24px; }

/* result highlight */
.result-highlight { background: linear-gradient(135deg, #00d4ff, #ff00aa); border-radius: var(--radius-sm); padding: 24px; margin-bottom: 20px; text-align: center; color: #0a0a0f; }
.result-highlight .hl-label{font-size:.76rem;text-transform:uppercase;letter-spacing:1px;opacity:.85}
.result-highlight .hl-value{font-family:'JetBrains Mono',monospace;font-size:1.88rem;font-weight:700;margin:8px 0}
.result-highlight .hl-sub{font-size:.8rem;opacity:.8}


/* six-across layout for grids that hold exactly six items */
.form-grid.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.form-grid.grid-6 .form-group label { min-height: 2.6em; }
.results-grid.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.results-grid.grid-6 .result-item { padding: 16px 10px; }
.results-grid.grid-6 .result-label { min-height: 3.2em; }
.results-grid.grid-6 .result-value { font-size: 1.0rem; }
/* A grid holding exactly six items lays out six across, even when the element
   carries extra utility classes and therefore has no .grid-6 tag. */
.form-grid:has(> :nth-child(6):last-child) { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.form-grid:has(> :nth-child(6):last-child) .form-group label { min-height: 2.6em; }
.results-grid:has(> :nth-child(6):last-child) { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.results-grid:has(> :nth-child(6):last-child) .result-item { padding: 16px 10px; }
.results-grid:has(> :nth-child(6):last-child) .result-label { min-height: 3.2em; }
.results-grid:has(> :nth-child(6):last-child) .result-value { font-size: 1.0rem; }
@media (max-width: 1080px) {
  .form-grid.grid-6, .results-grid.grid-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .form-grid:has(> :nth-child(6):last-child), .results-grid:has(> :nth-child(6):last-child) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* display-currency switcher */
.qtn-cur-wrap{display:inline-flex;align-items:center;margin-left:10px}
.qtn-cur{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;padding:6px 8px;font-family:'Outfit',sans-serif;font-size:.76rem;cursor:pointer}
.qtn-cur:hover{border-color:var(--accent-cyan)}
@media (max-width: 768px){ .qtn-cur-wrap{margin-left:6px} .qtn-cur{padding:5px 6px;font-size:.7rem} }
@media (max-width: 768px) {
  .form-grid.grid-6 { grid-template-columns: 1fr; }
  .form-grid:has(> :nth-child(6):last-child) { grid-template-columns: 1fr; }
  .results-grid:has(> :nth-child(6):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .results-grid.grid-6 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  h1 { font-size: 1.7rem; }
  .card { padding: 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .result-value { font-size: 1.06rem; }
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Self-hosted fonts (no external Google Fonts request) */
@font-face { font-family: 'Outfit'; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url(../font/outfit-latin-wght-normal.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 100 800; font-display: swap;
  src: url(../font/jetbrains-mono-latin-wght-normal.B9CIFXIH.woff2) format('woff2'); }

/* Site nav / footer / related tools (previously injected by site-nav.js) */
.qtn-top{position:sticky;top:0;z-index:50;background:rgba(25,28,35,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color,#454b5c)}
.qtn-top-inner{max-width:1200px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:14px}
.qtn-logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-primary,#f0f0f5);flex-shrink:0}
.qtn-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,#00d4ff,#ff00aa);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:#0a0a0f;font-size:17px;box-shadow:0 4px 14px rgba(0,212,255,.3)}
.qtn-logo-icon svg{width:18px;height:18px;display:block}
.qtn-logo-word{font-size:1.1rem;font-weight:700}
.qtn-links{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:center;margin-left:auto}
.qtn-top-link{color:var(--text-secondary,#8a8a9a);text-decoration:none;font-size:.85rem;padding:4px 0;border-bottom:2px solid transparent;transition:all .2s;white-space:nowrap}
.qtn-top-link:hover{color:var(--text-primary)}
.qtn-top-link.active{color:var(--text-primary);border-bottom-color:var(--accent-cyan,#00d4ff)}
.qtn-theme-toggle{background:none;border:1px solid var(--border-color,#454b5c);color:var(--text-secondary,#8a8a9a);font-size:1.1rem;padding:4px 10px;border-radius:8px;cursor:pointer;transition:all .2s;flex-shrink:0;line-height:1;font-family:inherit}
.qtn-theme-toggle:hover{color:var(--text-primary);border-color:var(--accent-cyan,#00d4ff)}
body.light-mode{--bg-primary:#f5f5f8;--bg-secondary:#eeeeff;--bg-card:#ffffff;--bg-input:#f0f0f5;--text-primary:#1a1a2e;--text-secondary:#5a5a6a;--text-muted:#6a6a78;--border-color:#d0d0dd;--shadow-glow:0 0 40px rgba(0,100,200,.08)}
body.light-mode .qtn-top{background:rgba(245,245,248,.92)}
body.light-mode .qtn-foot{background:var(--bg-secondary)}
.qtn-foot{margin-top:40px;border-top:1px solid var(--border-color,#454b5c);background:var(--bg-secondary,#22252e)}
.qtn-foot-inner{max-width:1200px;margin:0 auto;padding:32px 20px 20px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:12px}
.qtn-foot-brand .qtn-logo-word{font-size:1.05rem}
.qtn-foot-desc{color:var(--text-muted,#5a5a6a);font-size:.78rem;line-height:1.6;margin-top:8px}
.qtn-foot-company{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:12px}
.qtn-foot-company a{color:var(--text-muted,#5a5a6a);text-decoration:none;font-size:.78rem;transition:color .2s}
.qtn-foot-company a:hover{color:var(--text-primary)}
.qtn-foot-col h4{font-size:.68rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary,#8a8a9a);margin-bottom:8px}
.qtn-foot-col a{display:block;color:var(--text-muted,#5a5a6a);font-size:.78rem;padding:2px 0;text-decoration:none;transition:color .2s}
.qtn-foot-col a:hover{color:var(--text-primary)}
.qtn-foot-bottom{border-top:1px solid var(--border-color,#454b5c);padding:14px 20px;color:var(--text-muted,#5a5a6a);font-size:.74rem;text-align:center}
.qtn-foot-bottom p{max-width:1200px;margin:0 auto}
.qtn-related{max-width:1200px;margin:0 auto;padding:24px 20px 8px}
.qtn-related h3{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary,#8a8a9a);margin-bottom:12px}
.qtn-related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.qtn-related-item{display:block;padding:12px 14px;background:var(--bg-card,#2b2f3a);border:1px solid var(--border-color,#454b5c);border-radius:8px;text-decoration:none;color:var(--text-secondary,#8a8a9a);font-size:.85rem;transition:all .2s}
.qtn-related-item:hover{border-color:var(--accent-cyan,#00d4ff);color:var(--text-primary);transform:translateY(-2px)}
@media(max-width:768px){.qtn-foot-inner{grid-template-columns:1fr 1fr}.qtn-links{display:none}}

/* Skip to content (a11y) */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--bg-card,#2b2f3a);color:var(--text-primary,#f0f0f5);padding:10px 16px;border-radius:0 0 8px 0;font-size:.85rem;text-decoration:none}
.skip:focus{left:0}

/* Footer language row (framework; only English active for now) */
.qtn-langs{display:flex;flex-wrap:wrap;gap:6px 14px;justify-content:center;margin-top:12px}
.qtn-lang{font-size:.74rem;color:var(--text-muted,#5a5a6a)}
.qtn-lang.on{color:var(--text-secondary,#8a8a9a);font-weight:600}
.qtn-lang.soon{opacity:.5;cursor:default}
a.qtn-lang{text-decoration:none;transition:color .2s}
a.qtn-lang:hover{color:var(--text-primary,#f0f0f5);text-decoration:underline}

/* Content-depth sections (How to use / Worked example / Sources) */
.qt-depth{max-width:1200px;margin:0 auto;padding:18px 20px 4px}
.qt-depth h2{font-size:1.05rem;font-weight:600;margin:22px 0 10px;color:var(--text-primary,#f0f0f5)}
.qt-lead{font-size:.88rem;color:var(--text-secondary,#8a8a9a);margin-bottom:10px}
.qt-steps{margin:0 0 8px 20px;color:var(--text-secondary,#8a8a9a);font-size:.9rem;line-height:1.7}
.qt-steps li{margin-bottom:4px}
.qt-tables{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
@media(max-width:700px){.qt-tables{grid-template-columns:1fr}}
.qt-example{width:100%;border-collapse:collapse;font-size:.85rem}
.qt-example th,.qt-example td{border:1px solid var(--border-color,#454b5c);padding:8px 10px;text-align:left}
.qt-example th{background:var(--bg-secondary,#22252e);color:var(--text-secondary,#8a8a9a);font-weight:600}
.qt-example td:last-child{font-family:'JetBrains Mono',monospace}
.qt-note{font-size:.78rem;color:var(--text-muted,#5a5a6a);margin-top:8px}
.qt-sources{margin:0 0 8px 20px;color:var(--text-muted,#5a5a6a);font-size:.82rem;line-height:1.7}
.qt-sources li{margin-bottom:4px}
.cat-card .icon{display:inline-flex;margin-bottom:10px}
.cat-card:hover .icon{transform:translateY(-1px);transition:transform .2s}
.faq-q:hover{color:var(--accent-cyan)}
.calculators-count{color:var(--text-muted);font-size:.9rem}
.hero-stats{color:var(--text-muted);font-size:.85rem;margin-top:14px;letter-spacing:.3px}

.qt-sources-wrap{padding-top:2px}
.qt-sources-wrap h2{margin-top:0}

/* favourite star on tool cards (home page cards + category pages) */
.cat-card .fav-btn { position: absolute; top: 8px; right: 8px; background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: .9rem; padding: 2px 6px; border-radius: 4px; font-family: inherit; }
.cat-card .fav-btn:hover { color: var(--accent-yellow); }
.cat-card .fav-btn.faved { color: var(--accent-yellow); }

/* Respect the user's reduced-motion preference: the ambient background
   animation is decorative, so stop it instead of running it for 20s loops. */
@media (prefers-reduced-motion: reduce) {
  .bg-pattern::before { animation: none; }
  html { scroll-behavior: auto; }
}

/* Keyboard focus: visible ring for keyboard users, unchanged for mouse users. */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
  border-radius: 4px;
}
button:focus-visible, .cat-tab:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 2px; }

/* Homepage A-Z index of every calculator (static, crawlable)
   These sections sit outside <main class="cat">, so they need the same box model
   themselves — otherwise they render full-bleed and drift left of the card grid. */
.all-tools, #searchResults { max-width: 1200px; margin: 0 auto; padding: 10px 20px 60px; }
.all-tools ul.at-list { list-style: none; margin: 0; padding: 0; columns: 4 210px; column-gap: 22px; }
.all-tools ul.at-list li { break-inside: avoid; margin: 0 0 6px; }
.all-tools ul.at-list a { color: var(--text-muted); text-decoration: none; font-size: .85rem; }
.all-tools ul.at-list a:hover { color: var(--accent-cyan); }
@media (max-width: 640px) { .all-tools ul.at-list { columns: 2 140px; } }