@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;600&family=DM+Sans:wght@300;400;500&display=swap');

:root {
  --bg:     #0f0e0c;
  --paper:  #1a1814;
  --ink:    #e8e0d0;
  --muted:  #7a7060;
  --rule:   #2e2a24;
  --gold:   #d4a843;
  --red:    #c44b3a;
  --blue:   #4a8fa8;
  --green:  #5a9e6f;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.75;
  overflow-x: hidden;
}

/* NAV */
.game-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  height: 44px;
  background: rgba(15,14,12,0.88);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.game-nav-home {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); text-decoration: none; transition: color 0.15s;
  display: flex; align-items: center; justify-content: center;
  align-self: stretch; padding: 0 20px;
  border-right: 1px solid var(--rule);
}
.game-nav-home:hover { color: var(--gold); }
.game-nav-links {
  display: flex; gap: 0; list-style: none;
}
.game-nav-links li a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  padding: 0 14px; height: 44px; display: flex; align-items: center;
  border-left: 1px solid var(--rule); transition: color 0.15s;
}
.game-nav-links li a:hover { color: var(--gold); }

.act {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8vh 24px;
  max-width: 760px;
  margin: 0 auto;
}

.act-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

h1 {
  font-family: 'Lora', serif;
  font-size: clamp(28px, 5.5vw, 48px);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--ink);
}
h1 em { color: var(--gold); font-style: italic; }
h2 {
  font-family: 'Lora', serif;
  font-size: clamp(20px, 3.8vw, 32px);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--ink);
}
h2 em { color: var(--gold); font-style: italic; }

p { font-size: 15.5px; color: #b8b0a0; margin-bottom: 14px; max-width: 640px; }
p strong { color: var(--ink); font-weight: 500; }
p em { color: var(--gold); font-style: italic; }

.divider { width: 40px; height: 2px; background: var(--gold); opacity: 0.4; margin: 32px 0; }

.card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 20px 0;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  max-width: 760px; margin: 0 auto; padding: 80px 24px 80px; padding-top: calc(80px + 44px);
}
.scroll-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-top: 48px;
  display: flex; align-items: center; gap: 12px;
}
.scroll-hint::after {
  content: ''; display: block; width: 1px; height: 40px;
  background: var(--muted);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:.3} 50%{opacity:.8} }

/* ACT 1 */
.offer-display { text-align: center; padding: 24px 0 16px; }

.choice-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0; }
.choice-card {
  border: 1px solid var(--rule); border-radius: 8px; padding: 24px 16px;
  cursor: pointer; background: transparent; width: 100%; text-align: center;
  transition: border-color 0.18s, background 0.18s; font-family: inherit;
}
.choice-card:disabled { opacity: 0.3; cursor: default; }
.choice-card-label {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px;
}
.choice-card-num {
  font-family: 'Lora', serif; font-size: 44px; font-weight: 600;
  line-height: 1; margin-bottom: 10px;
}
.choice-card-desc { font-size: 11px; color: var(--muted); line-height: 1.6; }

.reject-card:not(:disabled):hover { border-color: var(--red); background: rgba(196,75,58,0.04); }
.reject-card .choice-card-num { color: var(--ink); }

.accept-card .choice-card-num { color: var(--gold); }
.accept-card:not(:disabled):hover { border-color: var(--green); background: rgba(90,158,111,0.04); }
.accept-card:not(:disabled):hover .choice-card-num { color: var(--green); }
.offer-week {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}
.offer-number {
  font-family: 'Lora', serif; font-size: 64px; font-weight: 600;
  color: var(--gold); line-height: 1; margin-bottom: 6px;
}
.offer-number.pop { animation: offerPop 0.35s cubic-bezier(.34,1.56,.64,1); }
@keyframes offerPop { 0%{transform:scale(.7);opacity:.3} 100%{transform:scale(1);opacity:1} }
.offer-sub { font-size: 12px; color: var(--muted); }

.decision-btns { display: flex; gap: 12px; justify-content: center; margin-top: 20px; }
.btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  border: none; border-radius: 4px; padding: 12px 28px;
  cursor: pointer; transition: all 0.15s; font-weight: 600;
}
.btn-accept { background: var(--green); color: #fff; }
.btn-accept:hover { background: #6dba85; transform: translateY(-1px); }
.btn-reject { background: transparent; border: 1px solid var(--rule); color: var(--muted); }
.btn-reject:hover { border-color: var(--red); color: var(--red); }
.btn:disabled { opacity: 0.3; cursor: default; transform: none !important; }

.benefits-row {
  display: flex; gap: 20px; justify-content: center;
  margin-top: 14px; flex-wrap: wrap;
}
.bstat { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--muted); }
.bstat span { color: var(--blue); }

/* offer table */
.table-wrap { overflow-x: auto; margin-top: 16px; border-radius: 6px; border: 1px solid var(--rule); }
table { border-collapse: collapse; font-family: 'JetBrains Mono', monospace; font-size: 11px; min-width: 100%; }
th {
  background: #111009; color: var(--muted); padding: 7px 9px;
  text-align: center; border-bottom: 1px solid var(--rule);
  font-weight: 400; letter-spacing: 0.05em; white-space: nowrap;
}
th.row-label { text-align: left; min-width: 80px; }
td {
  padding: 5px 9px; text-align: center;
  border-bottom: 1px solid rgba(46,42,36,0.5);
  color: #4a4540; white-space: nowrap;
}
td.row-label { text-align: left; color: var(--muted); }
td.sub-row { color: #38342e; font-size: 10px; }
td.cell-best { background: rgba(212,168,67,0.14) !important; color: var(--gold) !important; }
td.cell-user { background: rgba(90,158,111,0.14) !important; color: var(--green) !important; }
td.cell-user-best {
  background: rgba(212,168,67,0.22) !important; color: var(--gold) !important;
  outline: 2px solid var(--gold); outline-offset: -2px;
}
tr:hover td { background: rgba(255,255,255,0.012); }

.table-legend { display: flex; gap: 16px; margin-top: 10px; flex-wrap: wrap; }
.tleg { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
.tleg-sw { width: 12px; height: 12px; border-radius: 2px; }

.reveal-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 20px; }
.rstat { background: rgba(255,255,255,0.02); border: 1px solid var(--rule); border-radius: 6px; padding: 14px; text-align: center; }
.rstat-val { font-family: 'Lora', serif; font-size: 24px; font-weight: 600; margin-bottom: 4px; }
.rstat-lbl { font-size: 11px; color: var(--muted); line-height: 1.3; }
.rstat.good .rstat-val { color: var(--green); }
.rstat.bad  .rstat-val { color: var(--red); }
.rstat.neutral .rstat-val { color: var(--gold); }

.reveal-narrative {
  margin-top: 16px; padding: 14px 18px;
  background: rgba(212,168,67,0.05);
  border-left: 2px solid rgba(212,168,67,0.35);
  border-radius: 0 4px 4px 0;
  font-size: 13.5px; color: #a09880; line-height: 1.65;
}
.reveal-narrative strong { color: var(--ink); }

/* ACT 2 CLICKER */
.clicker-arena { text-align: center; padding: clamp(4px, 1vh, 8px) 0; }
.click-btn {
  width: clamp(70px, 10vh, 100px); height: clamp(70px, 10vh, 100px); border-radius: 50%;
  border: 2px solid var(--gold); background: transparent;
  cursor: pointer; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  margin: 0 auto 20px; transition: all 0.1s;
  user-select: none; -webkit-user-select: none;
}
.click-btn:active { transform: scale(0.91); background: rgba(212,168,67,0.08); }
.click-cps-big {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px; font-weight: 600; color: var(--ink); display: block;
}
.cps-meter { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.cps-bar-track { flex: 1; height: 5px; background: var(--rule); border-radius: 3px; overflow: hidden; }
.cps-bar-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--green), var(--gold), var(--red));
  transition: width 0.25s ease;
}
.cps-val { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--gold); min-width: 52px; text-align: right; }
.exhaustion { font-size: 12px; color: var(--red); font-style: italic; min-height: 16px; opacity: 0; transition: opacity 0.3s; }
.exhaustion.show { opacity: 1; }
.needs-ladder { display: flex; flex-direction: column; gap: clamp(2px, 0.4vh, 4px); margin: clamp(4px, 1vh, 8px) 0; }
.need-row {
  display: flex; align-items: center; gap: 12px;
  padding: clamp(3px, 0.7vh, 6px) 12px; border-radius: 6px; border: 1px solid var(--rule);
  opacity: 0.3; transform: translateX(-6px); transition: all 0.35s ease;
}
.need-row.unlocked { opacity: 1; transform: translateX(0); border-color: var(--green); background: rgba(90,158,111,0.06); }
.need-icon { font-size: clamp(13px, 2vh, 18px); filter: grayscale(1); transition: filter 0.35s; width: 24px; text-align: center; flex-shrink: 0; }
.need-row.unlocked .need-icon { filter: grayscale(0); }
.need-body { flex: 1; }
.need-name { font-size: 13px; font-weight: 500; color: var(--ink); margin-bottom: 1px; }
.need-desc { font-size: 11px; color: var(--muted); line-height: 1.3; }
.need-thresh { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--muted); flex-shrink: 0; }
.need-row.unlocked .need-thresh { color: var(--green); }

/* ACT 3 LEVERAGE */
.persona-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 18px 0; }
.persona { border: 1px solid var(--rule); border-radius: 6px; padding: 14px; cursor: pointer; transition: all 0.25s; }
.persona:hover { border-color: rgba(212,168,67,0.3); }
.persona.active { border-color: var(--gold); background: rgba(212,168,67,0.04); }
.persona-name { font-size: 13px; font-weight: 500; color: var(--ink); margin-bottom: 5px; }
.persona-story { font-size: 11.5px; color: var(--muted); line-height: 1.5; margin-bottom: 8px; }
.persona-beta { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--gold); }
.persona-meter { height: 3px; background: var(--rule); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.persona-meter-fill { height: 100%; border-radius: 2px; background: var(--gold); transition: width 0.5s; }

input[type=range] {
  -webkit-appearance: none; width: 100%; height: 2px;
  background: var(--rule); border-radius: 2px; outline: none; cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--gold); border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--gold); transition: transform 0.15s;
}
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.3); }

.lev-slider-wrap { margin-bottom: 14px; }
.lev-label { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; }
.lev-label .lname { color: var(--ink); }
.lev-label .lval { font-family: 'JetBrains Mono', monospace; color: var(--blue); }
.lev-prose {
  padding: 12px 16px;
  background: rgba(74,143,168,0.06);
  border-left: 2px solid rgba(74,143,168,0.35);
  border-radius: 0 4px 4px 0;
  font-size: 13px; color: #9898a8; line-height: 1.6; margin-top: 12px;
}
.lev-prose strong { color: var(--ink); }

/* ACT 4 SEPARATION */
.sep-scenario { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0; }
.sep-card { border: 1px solid var(--rule); border-radius: 6px; padding: 14px; }
.sep-card-title { font-size: 12px; font-weight: 500; margin-bottom: 8px; }
.sep-bar-label { font-size: 11px; color: var(--muted); margin-bottom: 3px; display: flex; justify-content: space-between; }
.sep-bar-track { height: 5px; background: var(--rule); border-radius: 3px; overflow: hidden; margin-bottom: 8px; }
.sep-bar-fill { height: 100%; border-radius: 3px; }

/* ACT 5 BELLMAN */
.bellman-steps { display: flex; flex-direction: column; gap: 12px; margin: 16px 0; }
.bell-step {
  display: grid; grid-template-columns: 1fr 1px 1fr;
  border: 1px solid var(--rule); border-radius: 6px; overflow: hidden;
  opacity: 0; transform: translateY(12px); transition: all 0.4s ease;
}
.bell-step.show { opacity: 1; transform: translateY(0); }
.bell-left { padding: 18px 20px; display: flex; flex-direction: column; gap: 8px; }
.bell-num { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--muted); }
.bell-prose { font-size: 13.5px; color: #a8a090; line-height: 1.65; }
.bell-prose strong { color: var(--ink); }
.bell-divider-col { background: var(--rule); }
.bell-right {
  padding: 18px 24px; background: #111009;
  display: flex; align-items: center; justify-content: center;
}
.bell-eq {
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  color: var(--ink); line-height: 2; text-align: center;
}
.bell-eq .tb { color: #6ab4d0; }
.bell-eq .tr { color: #d47060; }
.bell-eq .tg { color: var(--gold); }
.bell-eq .tm { color: #605850; }

.eq-next-btn {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold);
  border: 1px solid rgba(212,168,67,0.3); padding: 9px 20px;
  border-radius: 4px; cursor: pointer; background: transparent;
  transition: all 0.15s; margin-top: 12px; display: inline-block;
}
.eq-next-btn:hover { background: rgba(212,168,67,0.08); }
.eq-next-btn:disabled { opacity: 0.3; cursor: default; }

/* ACT 6 FULL MODEL */
.controls-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 20px; margin: 18px 0;
}
.control-group label { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.param-name { font-family: 'Lora', serif; font-style: italic; font-size: 20px; color: var(--gold); }
.param-full { font-size: 10px; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
.param-val { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--blue); }
.hint { font-size: 11px; color: var(--muted); margin-top: 7px; }

.outputs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0; }
.stat-card { background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: 16px 20px; border-top: 2px solid transparent; }
.stat-card.red  { border-top-color: var(--red); }
.stat-card.blue { border-top-color: var(--blue); }
.stat-lbl { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.stat-val { font-family: 'Lora', serif; font-size: 34px; font-weight: 600; line-height: 1; }
.stat-card.red  .stat-val { color: var(--red); }
.stat-card.blue .stat-val { color: var(--blue); }
.stat-sub { font-size: 11px; color: var(--muted); margin-top: 5px; }

.chart-wrap { background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: 18px 18px 12px; margin: 16px 0; }
.chart-title { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
canvas { display: block; width: 100% !important; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); }
.legend-swatch { width: 18px; height: 2px; border-radius: 2px; }

.narrative-box {
  background: rgba(212,168,67,0.04); border-left: 2px solid rgba(212,168,67,0.35);
  padding: 14px 18px; border-radius: 0 4px 4px 0;
  font-size: 13.5px; color: #a09880; line-height: 1.7; margin: 14px 0;
}
.narrative-box strong { color: var(--ink); }

@media (max-width:500px) {
  .outputs { grid-template-columns: 1fr; }
  .reveal-stats { grid-template-columns: 1fr; }
  .persona-cards { grid-template-columns: 1fr; }
  .sep-scenario { grid-template-columns: 1fr; }
}