/* ==========================================================================
   BURN — terminal-black ledger, acid-lime accent, and the recurring charges
   printed as an actual receipt. The finding is the hero; charts are evidence.
   ========================================================================== */

:root{
  --bg:#08090a;
  --pan:#0e1012;
  --ink:#e9eee8;
  --dim:#7c857c;
  --line:rgba(233,238,232,.10);
  --lime:#c6f24e;
  --amber:#ffb038;
  --red:#ff4d4d;
  --paper:#f4f1e6;      /* the receipt */
  --paper-ink:#1a1814;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

body{
  min-height:100vh;background:var(--bg);color:var(--ink);
  font-family:var(--mono);
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(60% 50% at 82% -6%, rgba(255,176,56,.10), transparent 70%),
    radial-gradient(50% 40% at 8% 4%, rgba(198,242,78,.07), transparent 70%);
}

/* faint CRT scanlines — the terminal conceit, kept almost subliminal */
.scan{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.018) 0 1px,transparent 1px 3px)}

/* ---------- header ---------- */
.top{position:relative;z-index:1;display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  max-width:1220px;margin:0 auto;padding:2rem 1.6rem 1.4rem}
.mark{width:40px;height:40px;flex:none}
.wordmark h1{font-size:1.9rem;font-weight:800;letter-spacing:.22em;line-height:1;
  background:linear-gradient(92deg,var(--lime),var(--amber) 55%,var(--red));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.wordmark p{margin-top:.35rem;font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.src{margin-left:auto;display:flex;gap:.4rem;flex-wrap:wrap}

.btn{font-family:var(--mono);font-size:.62rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--dim);background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:6px;padding:.5rem .8rem;cursor:pointer;transition:.18s;white-space:nowrap}
.btn:hover{color:var(--ink);border-color:var(--lime)}

/* ---------- verdict ---------- */
.verdict{position:relative;z-index:1;max-width:1220px;margin:0 auto;padding:0 1.6rem;
  display:grid;grid-template-columns:1fr auto;gap:1.6rem;align-items:end;
  border-bottom:1px solid var(--line);padding-bottom:1.6rem}
.v-label{font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.v-num{display:flex;align-items:baseline;gap:.85rem;margin-top:.4rem;flex-wrap:wrap}
.v-num b{font-size:clamp(2.6rem,7vw,4.4rem);line-height:.95;font-weight:800;letter-spacing:-.04em;color:var(--lime)}
.v-num span{font-size:clamp(1.1rem,2.6vw,1.7rem);font-weight:700;letter-spacing:-.02em;color:var(--amber)}
.v-sub{margin-top:.55rem;font-size:.78rem;color:var(--dim)}
.v-sub b{color:var(--red);font-weight:700}
.v-side{display:flex;gap:1.6rem;flex-wrap:wrap}
.v-stat{display:grid;gap:.15rem;text-align:right}
.v-stat b{font-size:1.05rem;font-weight:700;letter-spacing:-.01em}
.v-stat span{font-size:.54rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}

/* ---------- layout ---------- */
.grid{position:relative;z-index:1;max-width:1220px;margin:0 auto;padding:1.6rem 1.6rem 0;
  display:grid;grid-template-columns:330px 1fr;gap:1.4rem;align-items:start}

/* ---------- the receipt ---------- */
.receipt{position:relative;filter:drop-shadow(0 22px 34px rgba(0,0,0,.6))}
.r-body{background:var(--paper);color:var(--paper-ink);padding:1.1rem 1.2rem 1.3rem}
/* torn thermal edge, drawn rather than imaged */
.r-tear{height:9px;background:var(--paper);
  --t:conic-gradient(from -45deg at 50% 0,transparent 0 90deg,var(--paper) 90deg 180deg,transparent 180deg);}
.r-tear-top{-webkit-mask:radial-gradient(6px at 50% 100%,transparent 98%,#000) 0 0/13px 9px repeat-x;
  mask:radial-gradient(6px at 50% 100%,transparent 98%,#000) 0 0/13px 9px repeat-x}
.r-tear-bot{-webkit-mask:radial-gradient(6px at 50% 0,transparent 98%,#000) 0 0/13px 9px repeat-x;
  mask:radial-gradient(6px at 50% 0,transparent 98%,#000) 0 0/13px 9px repeat-x}

.r-head{display:flex;justify-content:space-between;align-items:baseline;font-size:.72rem;letter-spacing:.2em}
.r-head b{font-weight:800}
.r-head span{font-size:.58rem;opacity:.6}
.r-rule{border-top:1px dashed rgba(26,24,20,.35);margin:.7rem 0}
.r-lines{list-style:none;display:grid;gap:.44rem}
.r-line{display:grid;grid-template-columns:1fr auto;gap:.5rem;font-size:.72rem;align-items:baseline}
.r-line i{display:block;font-style:normal;font-size:.54rem;letter-spacing:.13em;
  text-transform:uppercase;opacity:.55;margin-top:.1rem}
.r-line b{font-weight:700;white-space:nowrap}
.r-total{display:flex;justify-content:space-between;align-items:baseline;font-size:.8rem;letter-spacing:.12em;font-weight:800}
.r-total.dim{font-size:.68rem;opacity:.6;font-weight:700;margin-top:.2rem}
.r-note{margin-top:.9rem;font-size:.5rem;line-height:1.7;letter-spacing:.08em;
  text-transform:uppercase;opacity:.5;text-align:center}

/* ---------- panels ---------- */
.panels{display:grid;gap:1.4rem}
.panel{background:var(--pan);border:1px solid var(--line);border-radius:12px;padding:1rem 1.1rem 1.1rem}
.p-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.9rem}
.p-head b{font-size:.78rem;font-weight:700;letter-spacing:.04em}
.p-head span{font-size:.55rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
#burnChart{display:block;width:100%;height:150px}

.cats{list-style:none;display:grid;gap:.55rem}
.cat{display:grid;grid-template-columns:9rem 1fr auto auto;gap:.7rem;align-items:center;font-size:.72rem}
.cat-name{color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cat-bar{height:7px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden}
.cat-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--lime),var(--amber))}
.cat-amt{font-weight:700;white-space:nowrap}
.cat-drift{font-size:.6rem;letter-spacing:.06em;white-space:nowrap;width:4.6rem;text-align:right}
.up{color:var(--red)}.down{color:var(--lime)}.flat{color:var(--dim)}

.clean{list-style:none;display:grid;gap:.4rem;font-size:.66rem}
.clean li{display:grid;grid-template-columns:1fr auto 1fr;gap:.6rem;align-items:center}
.raw{color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.arrow{color:var(--lime);opacity:.7}
.norm{color:var(--ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.foot{position:relative;z-index:1;max-width:1220px;margin:0 auto;padding:2rem 1.6rem 2.6rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-size:.56rem;letter-spacing:.08em;color:var(--dim);border-top:1px solid var(--line);margin-top:1.6rem}

.toast{position:fixed;left:50%;bottom:1.4rem;transform:translateX(-50%);z-index:20;
  font-size:.66rem;letter-spacing:.08em;background:var(--lime);color:#0a0c08;font-weight:700;
  border-radius:6px;padding:.55rem 1rem}

@media(max-width:880px){
  .grid{grid-template-columns:1fr}
  .verdict{grid-template-columns:1fr}
  .v-side{justify-content:flex-start}
  .v-stat{text-align:left}
  .cat{grid-template-columns:7rem 1fr auto}
  .cat-drift{display:none}
  .foot{flex-direction:column}
}

/* ==========================================================================
   The opening screen. Shown once, then on demand from `how it works`.

   It sits over a page that has ALREADY read the sample ledger, so it explains
   what is behind it rather than gating an empty state — dismissing it should
   reveal a working app, not a chore.
   ========================================================================== */

.btn.ghost{opacity:.72}
.btn.ghost:hover{opacity:1}
.btn.primary{color:#0b0f04;background:var(--lime);border-color:var(--lime);font-weight:600}
.btn.primary:hover{filter:brightness(1.08);color:#0b0f04}

.intro{
  position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  padding:clamp(1rem,4vw,2rem);overflow-y:auto;
  background:rgba(4,5,6,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  animation:introIn .22s ease;
}
.intro[hidden]{display:none}
@keyframes introIn{from{opacity:0}}

.intro-card{
  width:min(560px,100%);
  background:linear-gradient(180deg,var(--pan),var(--bg));
  border:1px solid var(--line);border-radius:14px;
  box-shadow:0 40px 90px -40px #000;
  padding:clamp(1.3rem,4vw,1.9rem);
}
.intro-eyebrow{font-size:.58rem;letter-spacing:.24em;text-transform:uppercase;color:var(--dim)}
.intro-card h2{
  margin:.5rem 0 .35rem;font-size:clamp(1.7rem,5vw,2.1rem);letter-spacing:.12em;
  color:var(--ink);font-weight:600;
}
.intro-lede{font-size:.82rem;line-height:1.65;color:var(--dim);margin-bottom:1.2rem;max-width:52ch}

.intro-steps{list-style:none;display:grid;gap:.55rem}
.intro-steps li{
  display:grid;grid-template-columns:auto 1fr;gap:.8rem;align-items:start;
  padding:.75rem .85rem;border:1px solid var(--line);border-radius:9px;
  background:rgba(255,255,255,.02);
}
.intro-steps b{font-size:.6rem;letter-spacing:.1em;color:var(--lime);padding-top:.15rem}
.intro-steps p{font-size:.78rem;color:var(--ink);letter-spacing:.04em;text-transform:uppercase}
.intro-steps span{display:block;margin-top:.28rem;font-size:.76rem;line-height:1.6;color:var(--dim);text-transform:none;letter-spacing:0}
.intro-steps code{font-size:.72rem;color:var(--amber);background:rgba(255,176,56,.08);padding:0 .2rem;border-radius:3px}

.intro-cta{display:flex;gap:.5rem;margin-top:1.2rem;flex-wrap:wrap}
.intro-cta .btn{flex:1;text-align:center;justify-content:center;padding:.7rem .9rem}
.intro-foot{margin-top:.85rem;text-align:center;font-size:.6rem;letter-spacing:.06em;color:var(--dim);opacity:.75}

@media(max-width:520px){
  .intro-cta{flex-direction:column}
  .src{gap:.3rem}
}