/* TCO Calculator — same vibe as the SE sizer family. */
:root {
  --bg: #0A0E1A;
  --panel: #11182e;
  --panel2: #0d1428;
  --line: #1e2a4a;
  --text: #e8edf7;
  --muted: #8b98b8;
  --accent: #2f9be8;
  --accent2: #7c5cf6;
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #14204a 0%, var(--bg) 55%) fixed, var(--bg);
  color: var(--text);
  font-family: "Outfit", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: var(--accent); }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 22px; }

/* header */
header.site { border-bottom: 1px solid var(--line); background: rgba(10,14,26,.85); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 50; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.brand .glyph { font-size: 1.5rem; filter: drop-shadow(0 0 8px rgba(47,155,232,.7)); }
nav.site { display: flex; gap: 4px; }
nav.site a { color: var(--muted); text-decoration: none; padding: 8px 14px; border-radius: 10px; font-size: .95rem; }
nav.site a:hover { color: var(--text); background: #182242; }

/* landing */
.hero { text-align: center; padding: 84px 0 40px; }
.kicker { display: inline-block; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); border: 1px solid #23405f; padding: 6px 14px; border-radius: 999px; background: rgba(47,155,232,.08); }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 22px 0 14px; line-height: 1.1;
  background: linear-gradient(120deg, #fff 30%, #7cc4ff 70%, #b79cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { color: var(--muted); font-size: 1.15rem; max-width: 640px; margin: 0 auto 30px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { border: 1px solid var(--line); background: var(--panel); color: var(--text); padding: 12px 22px; border-radius: 12px; font-size: 1rem; font-family: inherit; cursor: pointer; text-decoration: none; display: inline-block; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: linear-gradient(135deg, #1f6fd0, #2f9be8); border: none; font-weight: 700; box-shadow: 0 4px 24px rgba(47,155,232,.35); }
.btn.small { padding: 8px 14px; font-size: .9rem; }

.block { padding: 56px 0 8px; }
.sec { font-size: 1.7rem; margin: 0 0 6px; }
.sec-sub { color: var(--muted); margin: 0 0 26px; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step .n { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, #1f6fd0, #7c5cf6); margin-bottom: 12px; }
.step h3 { margin: 0 0 8px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--muted); font-size: .95rem; }

details.faq, details.changelog { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
details.faq summary, details.changelog summary { padding: 16px 20px; cursor: pointer; font-weight: 600; list-style: none; }
details.faq summary::-webkit-details-marker, details.changelog summary::-webkit-details-marker { display: none; }
details.faq summary::after, details.changelog summary::after { content: "+"; float: right; color: var(--accent); font-size: 1.2rem; }
details.faq[open] summary::after, details.changelog[open] summary::after { content: "–"; }
details .body, details .cbody { padding: 0 20px 18px; color: var(--muted); }
details .body p { margin: 0 0 10px; }
details .cbody h3 { color: var(--text); margin: 18px 0 8px; font-size: 1rem; }
details .cbody ul { margin: 0; padding-left: 20px; }
details .cbody li { margin-bottom: 6px; }

footer.site { border-top: 1px solid var(--line); margin-top: 70px; padding: 26px 0; color: var(--muted); font-size: .9rem; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* app view */
#appview { display: none; padding: 26px 0 40px; }
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.toolbar .spacer { flex: 1; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 18px; }
.panel h2 { margin: 0 0 4px; font-size: 1.15rem; }
.panel .hint { color: var(--muted); font-size: .9rem; margin: 0 0 16px; }

.setrow { display: flex; gap: 18px; flex-wrap: wrap; }
.set { display: flex; flex-direction: column; gap: 6px; min-width: 150px; }
.set label { font-size: .85rem; color: var(--muted); }
.set select, .set input[type="number"], .set input[type="text"] {
  background: var(--panel2); border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; padding: 10px 12px; font-size: 1rem; font-family: inherit; width: 100%;
}
.set select:focus, .set input:focus { outline: none; border-color: var(--accent); }

.scen-tabs { display: flex; gap: 8px; margin-bottom: 14px; }
.scen-tab { border: 1px solid var(--line); background: var(--panel2); color: var(--muted); padding: 10px 18px; border-radius: 12px; cursor: pointer; font-family: inherit; font-size: .95rem; }
.scen-tab.active[data-s="current"] { border-color: var(--accent); color: var(--text); background: rgba(47,155,232,.12); }
.scen-tab.active[data-s="proposed"] { border-color: var(--accent2); color: var(--text); background: rgba(124,92,246,.12); }

.fgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px 18px; }
.fld { display: flex; flex-direction: column; gap: 6px; }
.fld label { font-size: .82rem; color: var(--muted); }
.fld .unit { font-size: .75rem; color: #5b6a8f; }
.fld input { background: var(--panel2); border: 1px solid var(--line); color: var(--text); border-radius: 10px; padding: 9px 12px; font-size: .98rem; font-family: inherit; width: 100%; }
.fld input:focus { outline: none; border-color: var(--accent); }
.fld input[type="number"] { font-variant-numeric: tabular-nums; }
.fsec { grid-column: 1 / -1; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: #5b6a8f; margin-top: 8px; border-top: 1px solid var(--line); padding-top: 14px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.kpi .k { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.kpi .v { font-size: 1.55rem; font-weight: 800; margin-top: 6px; font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #fff, #7cc4ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kpi.good .v { background: linear-gradient(120deg, #d1fae5, #34d399); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kpi .s { font-size: .82rem; color: var(--muted); margin-top: 2px; }

.chart-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 18px; }
.chart-wrap h2 { margin: 0 0 10px; font-size: 1.15rem; }
#tco-chart { width: 100%; height: 320px; display: block; }
.legend { display: flex; gap: 18px; margin-top: 10px; font-size: .9rem; color: var(--muted); flex-wrap: wrap; }
.legend .sw { display: inline-block; width: 22px; height: 4px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }

table.years { width: 100%; border-collapse: collapse; font-size: .92rem; font-variant-numeric: tabular-nums; }
table.years th, table.years td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--line); }
table.years th:first-child, table.years td:first-child { text-align: left; }
table.years th { color: var(--muted); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; }
table.years tr.total td { font-weight: 700; border-top: 2px solid var(--line); }
td.pos { color: var(--good); } td.neg { color: var(--bad); }

.finding { background: var(--panel2); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 10px; padding: 14px 16px; margin-bottom: 10px; }
.finding h4 { margin: 0 0 4px; font-size: .98rem; }
.finding p { margin: 0; color: var(--muted); font-size: .92rem; }
.finding.warn { border-left-color: var(--warn); }

.projbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.projbar select { background: var(--panel2); border: 1px solid var(--line); color: var(--text); border-radius: 10px; padding: 8px 10px; font-family: inherit; }
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: #16213d; border: 1px solid var(--accent); color: var(--text); padding: 12px 20px; border-radius: 12px; z-index: 100; display: none; box-shadow: 0 8px 30px rgba(0,0,0,.5); }

.disclaimer { background: rgba(251,191,36,.07); border: 1px solid rgba(251,191,36,.35); border-radius: var(--radius); padding: 14px 18px; color: #e8d9ae; font-size: .9rem; margin-bottom: 18px; }

@media (max-width: 700px) {
  nav.site a { padding: 8px 8px; font-size: .85rem; }
  .hero { padding: 56px 0 30px; }
}

/* ---- app switcher (top-left dropdown) ---- */
.brand-dropdown{position:relative}
button.brand{background:none;border:0;cursor:pointer;font:inherit;padding:6px 10px;margin:-6px -10px;border-radius:10px;color:var(--text);display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem}
button.brand:hover{background:rgba(255,255,255,.05)}
.brand-caret{font-size:.65rem;color:var(--muted);margin-left:1px}
.brand-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:248px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:6px;box-shadow:0 16px 40px rgba(0,0,0,.5);display:none;z-index:60}
.brand-dropdown.open .brand-menu{display:block}
.brand-item{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border-radius:9px;color:var(--text);text-decoration:none;font-size:.9rem;background:none;border:0;cursor:pointer;font-family:inherit;text-align:left;box-sizing:border-box}
.brand-item:hover{background:rgba(80,140,255,.12)}
.brand-item .bi{font-size:1.05rem;line-height:1}
.brand-item.is-current{color:var(--accent2);font-weight:700}
.brand-item .cur{margin-left:auto;font-size:.7rem;color:var(--muted);font-weight:400}