/* ─── Design Tokens ─────────────────────────────────────────── */
:root {
  --bg:          #0c0c0c;
  --surface:     #191919;
  --surface-2:   #212121;
  --line:        rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.26);
  --text:        #f0f0f0;
  --muted:       #676767;
  --accent:      #f4e04a;
  --accent-dim:  rgba(244,224,74,0.13);
  --good:        #41e08b;
  --bad:         #ff3d5a;
  --neutral:     #888;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "Space Grotesk", "Segoe UI", sans-serif;
  --touch-target: 44px;
  --mobile-pad: clamp(0.9rem, 4vw, 1.15rem);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* ─── Base Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html { -webkit-tap-highlight-color: transparent; overflow-x: hidden; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  overscroll-behavior-y: none;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ─── Nav ────────────────────────────────────────────────────── */
.site-nav {
  padding: calc(0.62rem + var(--safe-top)) calc(1.4rem + var(--safe-right)) 0.62rem calc(1.4rem + var(--safe-left));
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg);
}

.back-link {
  text-decoration: none; color: var(--muted);
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  font-family: var(--mono); font-size: 0.58rem;
  text-transform: uppercase; letter-spacing: 0.2em;
  transition: color 0.1s;
}
.back-link:hover { color: var(--accent); }

.site-tag {
  font-family: var(--mono); font-size: 0.54rem;
  letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted);
}

/* ─── Header ─────────────────────────────────────────────────── */
header, main { width: min(1320px, 96vw); margin: 0 auto; position: relative; }

header {
  padding: 0.75rem 0 0.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0.45rem;
}

.kicker {
  font-family: var(--mono); font-size: 0.54rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent);
}

h1 {
  font-size: clamp(1.5rem, 2.9vw, 2.4rem);
  font-weight: 700; letter-spacing: -0.03em; margin-top: 0.1rem;
}

header > p {
  color: var(--muted); font-size: 0.72rem;
  margin-top: 0.2rem; line-height: 1.4;
}

/* ─── Strips ─────────────────────────────────────────────────── */
.tech-strip, .flow-strip {
  padding: 0.3rem 1.4rem;
  border-bottom: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 0.28rem;
}

.tech-strip span {
  font-family: var(--mono); font-size: 0.52rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line-strong);
  padding: 0.11rem 0.36rem;
}

.flow-strip span {
  font-family: var(--mono); font-size: 0.5rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(65,224,139,0.75); border: 1px solid rgba(65,224,139,0.22);
  padding: 0.11rem 0.36rem;
}

/* ─── Grid ───────────────────────────────────────────────────── */
main {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
  gap: 0.5rem;
  padding: 0.45rem 0 2rem;
}

.setup-card    { grid-column: span 3; }
.income-card   { grid-column: span 3; }
.finale-card   { grid-column: span 6; }
.expense-card  { grid-column: span 5; }
.viz-card      { grid-column: span 4; }
.insights-card { grid-column: span 3; }

/* ─── Cards — brutalist core ─────────────────────────────────── */
.card {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.62rem;
  display: flex; flex-direction: column; min-height: 0;
  box-shadow: 3px 3px 0 var(--accent-dim);
  overflow: hidden;
  transition: box-shadow 110ms ease, border-color 110ms ease;
  position: relative;
}

.card:hover {
  box-shadow: 5px 5px 0 var(--accent-dim);
  border-color: var(--line-strong);
}

/* ─── Drag & Drop ────────────────────────────────────────────── */
.card-head { cursor: grab; }
.card-head:active { cursor: grabbing; }
body.drag-active,
body.drag-active .card-head { cursor: grabbing; }
body.drag-active * { user-select: none; }
body.resize-active { cursor: nwse-resize; }
body.resize-active * { user-select: none; }

.card.is-dragging {
  opacity: 0.35;
  box-shadow: none;
  transform: none;
}

.card.drop-target {
  border-color: var(--accent);
  box-shadow: 4px 4px 0 rgba(244,224,74,0.35);
  transform: none;
}

.card.is-resizing {
  border-color: var(--accent);
  box-shadow: 6px 6px 0 rgba(244,224,74,0.28);
}

.drag-ghost {
  position: fixed;
  pointer-events: none;
  opacity: 0.88;
  z-index: 9999;
  box-shadow: 8px 8px 0 rgba(244,224,74,0.32);
  border: 1px solid var(--accent);
  background: var(--surface);
  padding: 0.62rem;
  border-style: dashed;
  transition: none;
}

.resize-grip {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 16px;
  height: 16px;
  border: 0;
  padding: 0;
  background:
    linear-gradient(135deg, transparent 0 40%, rgba(244,224,74,0.75) 40% 46%, transparent 46% 52%, rgba(244,224,74,0.75) 52% 58%, transparent 58% 100%);
  cursor: nwse-resize;
  opacity: 0.85;
  z-index: 3;
}

.resize-grip:hover {
  opacity: 1;
}

/* Finale card gets accent border — most important card */
.finale-card {
  border-color: rgba(244,224,74,0.22);
  box-shadow: 4px 4px 0 rgba(244,224,74,0.18);
}
.finale-card:hover { box-shadow: 6px 6px 0 rgba(244,224,74,0.28); }

.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.5rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem; margin-bottom: 0.4rem;
  flex-shrink: 0;
}

.card-head h2 {
  font-family: var(--mono); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}

.card-head p { font-family: var(--mono); font-size: 0.58rem; color: var(--muted); }

/* ─── Form Controls ──────────────────────────────────────────── */
.fields { display: grid; gap: 0.38rem; }
.fields.two-col   { grid-template-columns: repeat(2, 1fr); }
.fields.three-col { grid-template-columns: repeat(3, 1fr); }

label {
  display: grid; gap: 0.16rem;
  font-family: var(--mono); font-size: 0.54rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}

input, select, button { font: inherit; line-height: 1.2; border-radius: 0; }

input, select {
  width: 100%;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--text); padding: 0.36rem 0.46rem;
  min-height: var(--touch-target);
  font-family: var(--mono);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  /* NO box-shadow — brutalist: hard border only */
}

/* Primary: yellow, black text, press-down on :active */
.btn {
  border: 1.5px solid var(--accent); background: var(--accent); color: #0c0c0c;
  padding: 0.36rem 0.65rem;
  min-height: var(--touch-target);
  font-family: var(--mono); font-size: 0.58rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer;
  box-shadow: 2px 2px 0 rgba(255,255,255,0.12);
  transition: transform 70ms, box-shadow 70ms;
  border-radius: 0;
}
.btn:hover { opacity: 0.93; }
.btn:active { transform: translate(2px, 2px); box-shadow: none; }

.btn.ghost {
  background: transparent; border-color: var(--line-strong);
  color: var(--muted); box-shadow: none;
}
.btn.ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.45); opacity: 1; }
.btn.ghost:active { transform: translate(2px, 2px); }

/* ─── Finale Card — hero stat ────────────────────────────────── */
.finale-label {
  font-family: var(--mono); font-size: 0.52rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
  margin: 0.1rem 0 0.28rem;
}

#finale-value {
  font-family: var(--mono);
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1;
}

.finale-card.ok      #finale-value { color: var(--good); }
.finale-card.bad     #finale-value { color: var(--bad); }
.finale-card.neutral #finale-value { color: var(--text); }

.pill {
  display: inline-flex; align-items: center;
  margin: 0.32rem 0 0.48rem;
  padding: 0.18rem 0.52rem;
  border: 1.5px solid currentColor;
  font-family: var(--mono); font-size: 0.56rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 0;
}

.pill.ok      { color: var(--good); }
.pill.bad     { color: var(--bad); animation: pulse-bad 2.2s ease-in-out infinite; }
.pill.neutral { color: var(--neutral); }

@keyframes pulse-bad {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.55; }
}

/* ─── Stats Grid ─────────────────────────────────────────────── */
.stats { display: grid; gap: 0.36rem; }
.stats.four { grid-template-columns: repeat(4, 1fr); }
.stats.two  { grid-template-columns: repeat(2, 1fr); }

.stat {
  border: 1px solid var(--line); background: var(--surface-2);
  padding: 0.38rem 0.5rem;
  position: relative;
}

.stat p {
  font-family: var(--mono); font-size: 0.5rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}

.stat strong {
  display: block; font-family: var(--mono);
  font-size: 0.82rem; font-weight: 600; margin-top: 0.14rem;
}

.has-tooltip {
  cursor: help;
}

.has-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 0.4rem;
  right: 0.4rem;
  bottom: 0.4rem;
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 120ms ease, transform 120ms ease;
  background: #0f0f0f;
  border: 1px solid var(--line-strong);
  color: #d9d9d9;
  font-family: var(--mono);
  font-size: 0.5rem;
  line-height: 1.35;
  letter-spacing: 0.03em;
  text-transform: none;
  padding: 0.28rem 0.34rem;
}

.has-tooltip:hover::after,
.has-tooltip:focus-within::after {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Tables ─────────────────────────────────────────────────── */
.table-wrap {
  border: 1px solid var(--line); overflow: auto;
  flex: 1; min-height: 0; background: rgba(0,0,0,0.22);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.14) transparent;
}
.table-wrap::-webkit-scrollbar { width: 4px; height: 4px; }
.table-wrap::-webkit-scrollbar-track { background: transparent; }
.table-wrap::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.14); border-radius: 2px; }
.table-wrap::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.28); }
.table-wrap.compact { max-height: 206px; }

table { width: 100%; border-collapse: collapse; }
.expense-card  table { min-width: 520px; }
.insights-card table,
.income-card   table { min-width: 290px; }

th, td {
  padding: 0.28rem 0.36rem; text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.055); font-size: 0.62rem;
}

th {
  position: sticky; top: 0; z-index: 1;
  font-family: var(--mono); font-size: 0.5rem;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted);
  background: var(--surface);
}

td { color: var(--text); }

tr:hover td { background: rgba(255,255,255,0.022); }

td input { padding: 0.22rem 0.3rem; font-size: 0.6rem; }

.row-remove {
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  font-family: var(--mono); font-size: 0.48rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.18rem 0.32rem; cursor: pointer; border-radius: 0;
  transition: color 0.1s, border-color 0.1s;
}
.row-remove:hover {
  color: var(--bad); border-color: rgba(255,61,90,0.42);
}

/* ─── Viz + Chart ────────────────────────────────────────────── */
.compact-controls { margin-bottom: 0.4rem; }

.viz-canvas { min-height: 0; flex: 1; }

.viz-canvas svg { display: block; width: 100%; height: auto; }

.axis-label, .bar-label {
  fill: #5d7a96; font-size: 10px;
  font-family: "IBM Plex Mono";
}

.viz-legend {
  border-top: 1px solid var(--line);
  margin-top: 0.28rem; padding-top: 0.28rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
  gap: 0.26rem; max-height: 68px; overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.14) transparent;
}

.viz-legend::-webkit-scrollbar { width: 3px; }
.viz-legend::-webkit-scrollbar-track { background: transparent; }
.viz-legend::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.14); border-radius: 2px; }

.legend-item {
  display: flex; align-items: center; gap: 0.38rem;
  font-family: var(--mono); font-size: 0.56rem; color: var(--muted);
}

/* Square dots — no border-radius, brutalist */
.dot { width: 8px; height: 8px; flex-shrink: 0; }

/* ─── Utilities ──────────────────────────────────────────────── */
.value-good { color: var(--good); }
.value-bad  { color: var(--bad); }

@keyframes rowEnter {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: translateY(0); }
}
tr.row-new { animation: rowEnter 170ms ease-out forwards; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (min-width: 1100px) {
  body { overflow: auto; }
  main { height: auto; }
}

@media (max-width: 1099px) {
  main { grid-template-columns: 1fr; height: auto; }
  .setup-card, .income-card, .finale-card,
  .expense-card, .viz-card, .insights-card { grid-column: auto; }
  .viz-canvas { height: 280px; }
}

@media (max-width: 720px) {
  .site-nav { padding-left: calc(var(--mobile-pad) + var(--safe-left)); padding-right: calc(var(--mobile-pad) + var(--safe-right)); }
  .tech-strip { padding-left: var(--mobile-pad); padding-right: var(--mobile-pad); }
  /* flow-strip is verbose noise on a phone — hide it */
  .flow-strip { display: none; }

  /* Use full viewport with safe-area padding instead of a 96vw clamp.
     This prevents box-shadow offsets from clipping at the right edge
     and keeps cards full-width with a consistent gutter. */
  header, main {
    width: auto;
    margin: 0;
    padding-left: calc(var(--mobile-pad) + var(--safe-left));
    padding-right: calc(var(--mobile-pad) + var(--safe-right));
  }
  main { gap: 0.6rem; }

  .fields.two-col, .fields.three-col,
  .stats.two { grid-template-columns: 1fr; }
  .stats.four { grid-template-columns: repeat(2, 1fr); }
  .site-tag { letter-spacing: 0.16em; }
  header { padding-top: 0.8rem; padding-bottom: 0.55rem; }
  h1 { font-size: clamp(1.35rem, 8vw, 1.9rem); }
  header > p { font-size: 0.68rem; line-height: 1.45; }

  /* Cards: drop offset shadows on mobile (caused subtle right-edge
     overflow), bump padding so content breathes. */
  .card { padding: 0.7rem; box-shadow: none; }
  .card:hover { box-shadow: none; border-color: var(--line); }
  .finale-card { box-shadow: none; }
  .finale-card:hover { box-shadow: none; }

  .card-head { gap: 0.3rem; }
  .card-head h2 { font-size: 0.6rem; }
  .btn { width: 100%; justify-content: center; letter-spacing: 0.08em; }
  .table-wrap.compact { max-height: 220px; }
  .tech-strip span { letter-spacing: 0.06em; }

  /* Bigger, easier-to-read tables on touch */
  th, td { padding: 0.45rem 0.42rem; font-size: 0.72rem; }
  th { font-size: 0.55rem; }
  td input { padding: 0.32rem 0.36rem; font-size: 0.72rem; min-height: 36px; }
  .row-remove { padding: 0.32rem 0.5rem; font-size: 0.55rem; min-height: 36px; }

  /* Scroll-shadow technique: subtle gradients on the left/right
     edges that fade when the user has scrolled to that side, signaling
     overflow. Layered backgrounds with mixed local/scroll attachments. */
  .table-wrap {
    -webkit-overflow-scrolling: touch;
    background:
      linear-gradient(to right, var(--surface) 30%, rgba(25,25,25,0)) 0 0 / 1.6rem 100% no-repeat,
      linear-gradient(to left,  var(--surface) 30%, rgba(25,25,25,0)) 100% 0 / 1.6rem 100% no-repeat,
      radial-gradient(ellipse at left,  rgba(0,0,0,0.55), rgba(0,0,0,0) 70%) 0 0 / 1rem 100% no-repeat,
      radial-gradient(ellipse at right, rgba(0,0,0,0.55), rgba(0,0,0,0) 70%) 100% 0 / 1rem 100% no-repeat,
      rgba(0,0,0,0.22);
    background-attachment: local, local, scroll, scroll, local;
  }

  /* Drag-grab / resize affordances are awkward on touch — hide */
  .resize-grip { display: none; }
  .card-head { cursor: default; }

  /* Finale: reads as the hero card */
  .finale-card {
    border-color: rgba(244,224,74,0.32);
    border-width: 1.5px;
    padding: 0.85rem;
  }
  .finale-label { font-size: 0.5rem; margin-bottom: 0.2rem; }
  #finale-value { font-size: clamp(2.4rem, 11vw, 3rem); margin-bottom: 0.3rem; }
  .pill { font-size: 0.6rem; padding: 0.22rem 0.6rem; margin: 0 0 0.55rem; }
  .stats { gap: 0.4rem; }
  .stat { padding: 0.45rem 0.55rem; }
  .stat strong { font-size: 0.92rem; }

  /* Tooltips on touch are noisy — disable */
  .has-tooltip { cursor: default; }
  .has-tooltip::after { display: none; }
}

@media (max-width: 480px) {
  .site-nav { padding-top: calc(0.5rem + var(--safe-top)); padding-bottom: 0.5rem; }
  header { padding-top: 0.6rem; padding-bottom: 0.4rem; }
  main { gap: 0.5rem; }
  .card { padding: 0.6rem; }
  .finale-card { padding: 0.75rem; }
  .card-head { padding-bottom: 0.32rem; margin-bottom: 0.32rem; }
  .tech-strip { gap: 0.22rem; padding-top: 0.22rem; padding-bottom: 0.22rem; }
  .tech-strip span { font-size: 0.5rem; padding: 0.1rem 0.32rem; letter-spacing: 0.05em; }
  h1 { font-size: clamp(1.2rem, 7.8vw, 1.6rem); margin-top: 0.05rem; }
  header > p { font-size: 0.66rem; line-height: 1.4; }
  th, td { padding: 0.4rem 0.34rem; font-size: 0.68rem; }
  .btn { padding: 0.5rem 0.55rem; font-size: 0.58rem; }
  .stat { padding: 0.42rem 0.45rem; }
  .stat strong { font-size: 0.84rem; }
  .stat p { font-size: 0.46rem; }
  #finale-value { font-size: clamp(2.2rem, 13vw, 2.7rem); }
  .viz-canvas { height: 230px; }
  .viz-legend { max-height: 88px; }
}

/* Bottom safe-area: leave room for the home indicator */
@media (max-width: 720px) {
  main { padding-bottom: calc(2rem + var(--safe-bottom)); }
}

@media (max-height: 540px) and (orientation: landscape) {
  .site-nav { padding: 0.52rem 0.85rem; }
  .tech-strip, .flow-strip { padding: 0.22rem 0.85rem; }
  header { padding: 0.6rem 0 0.38rem; }
  h1 { font-size: clamp(1.22rem, 3vw, 1.7rem); }
  header > p { margin-top: 0.12rem; font-size: 0.64rem; }
  main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
    padding-top: 0.32rem;
  }
  .setup-card, .income-card, .finale-card,
  .expense-card, .viz-card, .insights-card { grid-column: auto; }
  .fields.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats.two, .stats.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .table-wrap.compact { max-height: 145px; }
}