/* =========================================================
   KRS · Revenue ROI Calculator v2 (namespaced krs-roi2-*)
   Self-contained palette: dark defaults + explicit light
   overrides — safe on homepage (inline CSS) and /martech-stack-roi-calculator/
   (style.css), regardless of which theme vars each defines.
   ========================================================= */
#stack-roi{--r2-ink:#f5f7fb;--r2-muted:#a9b5c7;--r2-line:rgba(255,255,255,.13);--r2-line2:rgba(255,255,255,.08);
  --r2-blue:#77c7ff;--r2-violet:#b89cff;--r2-green:#8cf0bd;--r2-orange:#ffbe7b;
  --r2-field:rgba(255,255,255,.06);--r2-cardbg:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
  --r2-panel:rgba(7,16,24,.35);--r2-seg:rgba(255,255,255,.04);
  --r2-res:linear-gradient(180deg,rgba(119,199,255,.07),rgba(184,156,255,.05));
  --r2-gate:linear-gradient(180deg,rgba(7,16,24,.55),rgba(7,16,24,.80));
  --r2-head:rgba(255,255,255,.045)}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark){--r2-ink:#0f1722;--r2-muted:#54616f;--r2-line:rgba(15,30,55,.12);--r2-line2:rgba(15,30,55,.07);
  --r2-blue:#2f6fde;--r2-violet:#6b53d6;--r2-green:#179a67;--r2-orange:#b06410;
  --r2-field:#f4f7fc;--r2-cardbg:linear-gradient(180deg,#ffffff,#f6f9fd);
  --r2-panel:#ffffff;--r2-seg:#f4f7fc;
  --r2-res:linear-gradient(180deg,rgba(47,111,222,.06),rgba(107,83,214,.04));
  --r2-gate:linear-gradient(180deg,rgba(238,242,248,.62),rgba(238,242,248,.90));
  --r2-head:rgba(15,30,55,.045)}

.krs-roi2-card{border:1px solid var(--r2-line);background:var(--r2-cardbg);border-radius:26px;box-shadow:0 18px 50px rgba(0,0,0,.16);margin-top:34px;padding:0;overflow:hidden}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark) .krs-roi2-card{box-shadow:0 16px 44px rgba(30,45,80,.10)}
.krs-roi2-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(320px,.98fr)}
@media (max-width:900px){.krs-roi2-grid{grid-template-columns:1fr}}

/* ---- inputs ---- */
.krs-roi2-inputs{padding:30px clamp(20px,3vw,36px);border-right:1px solid var(--r2-line2)}
@media (max-width:900px){.krs-roi2-inputs{border-right:0;border-bottom:1px solid var(--r2-line2)}}
.krs-roi2-inputs h3{font-family:"Space Grotesk",Inter,sans-serif;font-size:20px;margin:0 0 4px;color:var(--r2-ink);letter-spacing:-.04em}
.krs-roi2-inputs>p{font-size:13.5px;color:var(--r2-muted);margin:0 0 22px}
.krs-roi2-field{margin-bottom:18px}
.krs-roi2-field label{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;font-weight:800;color:var(--r2-ink);margin-bottom:7px}
.krs-roi2-field label small{font-weight:600;color:var(--r2-muted);font-size:12px;text-align:right}
.krs-roi2-inwrap{position:relative;display:flex;align-items:center}
.krs-roi2-inwrap .krs-roi2-fix{position:absolute;left:14px;font-weight:800;color:var(--r2-muted);font-size:14px;pointer-events:none}
.krs-roi2-inwrap .krs-roi2-fix.suf{left:auto;right:14px}
.krs-roi2-inwrap input,.krs-roi2-inwrap select{
  width:100%;background:var(--r2-field);border:1px solid var(--r2-line);border-radius:14px;color:var(--r2-ink);
  padding:12px 14px;font:inherit;font-size:15px;font-weight:700;outline:none;min-width:0}
.krs-roi2-inwrap input.pre{padding-left:30px}
.krs-roi2-inwrap input.suf{padding-right:34px}
.krs-roi2-inwrap input:focus-visible,.krs-roi2-inwrap select:focus-visible{border-color:var(--r2-blue);box-shadow:0 0 0 3px rgba(119,199,255,.20)}
.krs-roi2-two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:560px){.krs-roi2-two{grid-template-columns:1fr}}

/* scenario segmented control */
.krs-roi2-scen{margin-top:24px}
.krs-roi2-scen-label{font-size:13.5px;font-weight:800;color:var(--r2-ink);margin-bottom:8px}
.krs-roi2-seg{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;border:1px solid var(--r2-line);border-radius:16px;padding:6px;background:var(--r2-seg)}
.krs-roi2-seg button{border:0;background:transparent;border-radius:11px;padding:10px 6px;cursor:pointer;font:inherit;text-align:center}
.krs-roi2-seg button b{display:block;font-size:13px;font-weight:800;color:var(--r2-muted);letter-spacing:-.01em}
.krs-roi2-seg button span{display:block;font-size:11px;color:var(--r2-muted);font-weight:600;margin-top:1px}
.krs-roi2-seg button[data-on]{background:linear-gradient(135deg,rgba(119,199,255,.22),rgba(184,156,255,.20))}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark) .krs-roi2-seg button[data-on]{background:linear-gradient(135deg,rgba(47,111,222,.14),rgba(107,83,214,.12))}
.krs-roi2-seg button[data-on] b{color:var(--r2-ink)}
.krs-roi2-hint{font-size:12px;color:var(--r2-muted);margin-top:10px}

/* ---- results ---- */
.krs-roi2-results{padding:30px clamp(20px,3vw,36px);background:var(--r2-res)}
.krs-roi2-results h3{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--r2-muted);font-family:Inter,sans-serif;margin:0}
.krs-roi2-big{font-family:"Space Grotesk",Inter,sans-serif;font-size:clamp(44px,5vw,64px);font-weight:700;letter-spacing:-.05em;line-height:1;color:var(--r2-ink);margin:10px 0 2px;font-variant-numeric:tabular-nums}
.krs-roi2-roiline{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 22px}
.krs-roi2-roiline b{font-size:14px;font-weight:900;color:#06111d;background:linear-gradient(135deg,var(--r2-blue),var(--r2-violet));border-radius:999px;padding:5px 12px}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark) .krs-roi2-roiline b{color:#ffffff}
.krs-roi2-roiline span{font-size:13px;color:var(--r2-muted);font-weight:600}
.krs-roi2-cards{display:grid;grid-template-columns:1fr;gap:10px}
.krs-roi2-mini{border:1px solid var(--r2-line);border-radius:16px;padding:14px 16px;background:var(--r2-panel);display:flex;justify-content:space-between;align-items:center;gap:12px}
.krs-roi2-mini i{font-style:normal;font-size:13px;font-weight:700;color:var(--r2-muted)}
.krs-roi2-mini i b{display:block;font-size:12px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:var(--r2-ink);margin-bottom:1px}
.krs-roi2-mini strong{font-family:"Space Grotesk",Inter,sans-serif;font-size:21px;font-weight:700;letter-spacing:-.03em;color:var(--r2-ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.krs-roi2-mini strong em{font-style:normal;font-size:12px;font-weight:800;margin-left:6px;color:var(--r2-green)}
.krs-roi2-live{margin-top:16px;font-size:12px;color:var(--r2-muted);display:flex;align-items:center;gap:7px}
.krs-roi2-live:before{content:"";width:7px;height:7px;border-radius:99px;background:var(--r2-green);box-shadow:0 0 12px rgba(140,240,189,.7)}

/* ---- gated detail ---- */
.krs-roi2-gatewrap{position:relative;border-top:1px solid var(--r2-line2)}
.krs-roi2-report{padding:28px clamp(20px,3vw,36px)}
.krs-roi2-blur{filter:blur(9px);pointer-events:none;user-select:none;min-height:380px}
.krs-roi2-gate{position:absolute;inset:0;display:grid;place-content:center;text-align:center;gap:10px;padding:24px;background:var(--r2-gate)}
.krs-roi2-gate b{font-family:"Space Grotesk",Inter,sans-serif;font-size:22px;color:var(--r2-ink);letter-spacing:-.03em}
.krs-roi2-gate p{max-width:440px;font-size:14.5px;color:var(--r2-muted);margin:0}
.krs-roi2-gate form{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:4px}
.krs-roi2-gate input[type=email]{width:260px;background:var(--r2-panel);border:1px solid var(--r2-line);border-radius:14px;color:var(--r2-ink);padding:12px 14px;font:inherit;font-size:14px;outline:none}
.krs-roi2-gate input[type=email]:focus-visible{border-color:var(--r2-blue);box-shadow:0 0 0 3px rgba(119,199,255,.20)}
.krs-roi2-err{color:var(--r2-orange);font-size:12.5px;min-height:16px}
.krs-roi2-gate small{color:var(--r2-muted);font-size:12px}
#krsRoi2Hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

/* report internals */
.krs-roi2-rephead{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.krs-roi2-rephead h3{font-family:"Space Grotesk",Inter,sans-serif;font-size:22px;color:var(--r2-ink);letter-spacing:-.04em;margin:0}
.krs-roi2-period{display:inline-flex;gap:4px;border:1px solid var(--r2-line);border-radius:999px;padding:4px;background:var(--r2-seg)}
.krs-roi2-period button{border:0;background:transparent;border-radius:999px;padding:7px 14px;font:inherit;font-size:12.5px;font-weight:800;color:var(--r2-muted);cursor:pointer}
.krs-roi2-period button[data-on]{background:linear-gradient(135deg,var(--r2-blue),var(--r2-violet));color:#06111d}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark) .krs-roi2-period button[data-on]{color:#ffffff}
.krs-roi2-table{border:1px solid var(--r2-line);border-radius:18px;overflow:hidden;margin-bottom:24px}
.krs-roi2-tr{display:grid;grid-template-columns:1.3fr 1fr 1fr .8fr;gap:8px;padding:13px 16px;border-bottom:1px solid var(--r2-line2);align-items:center}
.krs-roi2-tr:last-child{border-bottom:0}
.krs-roi2-tr.head{background:var(--r2-head);font-size:11px;font-weight:900;letter-spacing:.07em;text-transform:uppercase;color:var(--r2-muted)}
.krs-roi2-tr span{font-size:13.5px;color:var(--r2-muted);font-variant-numeric:tabular-nums}
.krs-roi2-tr b{font-size:13.5px;color:var(--r2-ink);font-weight:800}
.krs-roi2-tr .up{color:var(--r2-green);font-weight:800;font-size:13px}
@media (max-width:640px){.krs-roi2-tr{grid-template-columns:1.2fr 1fr 1fr}.krs-roi2-tr :nth-child(4){display:none}}
.krs-roi2-levers h4{font-family:"Space Grotesk",Inter,sans-serif;font-size:17px;margin:0 0 6px;color:var(--r2-ink);letter-spacing:-.03em}
.krs-roi2-levers>p{font-size:13.5px;color:var(--r2-muted);margin:0 0 14px}
.krs-roi2-lever{display:flex;gap:14px;align-items:center;padding:12px 0;border-top:1px solid var(--r2-line2)}
.krs-roi2-lever:first-of-type{border-top:0}
.krs-roi2-lever .bar{flex:1;min-width:0}
.krs-roi2-lever .bar b{display:block;font-size:14px;color:var(--r2-ink);margin-bottom:5px}
.krs-roi2-lever .bar i{display:block;height:7px;border-radius:99px;background:var(--r2-line2);position:relative;overflow:hidden;font-style:normal}
.krs-roi2-lever .bar i em{position:absolute;inset:0 auto 0 0;border-radius:99px;background:linear-gradient(90deg,var(--r2-blue),var(--r2-violet));font-style:normal}
.krs-roi2-lever strong{font-family:"Space Grotesk",Inter,sans-serif;font-size:16px;color:var(--r2-ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.krs-roi2-cta{border-top:1px solid var(--r2-line2);margin-top:24px;padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.krs-roi2-cta p{color:var(--r2-ink);font-weight:700;font-size:15px;max-width:480px;margin:0}
.krs-roi2-cta p small{display:block;color:var(--r2-muted);font-weight:600;font-size:12.5px;margin-top:3px}
.krs-roi2-cta-btns{display:flex;gap:10px;flex-wrap:wrap}
.krs-roi2-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 18px;font-weight:800;border:1px solid var(--r2-line);background:var(--r2-field);color:var(--r2-ink);cursor:pointer;font:inherit;font-weight:800;text-decoration:none;font-size:14.5px}
.krs-roi2-btn.primary{background:linear-gradient(135deg,var(--r2-blue),var(--r2-violet));color:#06111d;border:0}
:root[data-theme="light"] #stack-roi:not(.krs-roi2-dark) .krs-roi2-btn.primary{color:#ffffff}
.krs-roi2-btn:hover{transform:translateY(-1px)}
.krs-roi2-method{font-size:12px;color:var(--r2-muted);margin-top:20px;line-height:1.6}
.krs-roi2-notice{font-size:13px;color:var(--r2-muted);margin-top:20px}