@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,500;9..144,600&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #0A1420;
  --panel: #0F1D30;
  --border: #22334C;
  --border-faint: #1A2B42;
  --text: #E8E6DD;
  --muted: #7E90A8;
  --dim: #566780;
  --gold: #C6A15B;
  --gold-dim: #8A7442;
  --green: #4F9B72;
  --red: #C1594E;
  --blue: #3E5C82;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

/* ---------- header ---------- */
.header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 14px;
}
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold-dim);
  margin-bottom: 6px;
}
h1 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(26px, 4vw, 38px);
  margin: 0;
  letter-spacing: -0.01em;
}
.ticker {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}
.ticker .stat-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--dim);
  margin-bottom: 2px;
}
.ticker .stat-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 16px;
  font-weight: 500;
}

/* ---------- install bar ---------- */
.install-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(198,161,91,0.08);
  border: 1px solid #C6A15B44;
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 22px;
  font-size: 13px;
}
.install-bar.show { display: flex; flex-wrap: wrap; }
.install-bar button {
  background: var(--gold);
  color: var(--bg);
  border: none;
  border-radius: 3px;
  padding: 8px 14px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

/* ---------- layout grid ---------- */
.main-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 26px;
}
@media (max-width: 860px) {
  .main-grid { grid-template-columns: 1fr; }
  .bottom-row { grid-template-columns: 1fr !important; }
  .scenarios { grid-template-columns: 1fr !important; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 22px 20px;
  height: fit-content;
}
.panel-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}

/* ---------- field rows ---------- */
.field { margin-bottom: 18px; }
.field-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 6px;
}
.field-input-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 8px 10px;
  background: var(--bg);
  width: 50%;
}
.field-input-wrap span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--dim);
}
.field-input-wrap input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--text);
  text-align: right;
}

.btn-row { display: flex; gap: 10px; margin-top: 22px; }
.btn {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 3px;
  transition: opacity 0.15s ease;
}
.btn:hover { opacity: 0.85; }
.btn-primary {
  flex: 1;
  background: var(--gold);
  color: var(--bg);
  border: none;
  padding: 11px 0;
}
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 11px 13px;
}
.hint {
  font-size: 11px;
  color: var(--dim);
  line-height: 1.5;
  margin-top: 16px;
  margin-bottom: 0;
}

/* ---------- chart panel ---------- */
.chart-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px 20px 10px;
}
.chart-header {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}
.chart-header .sub { color: var(--gold-dim); }

.empty-state {
  height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--dim);
  gap: 10px;
}
.empty-state svg { opacity: 0.6; }

canvas { display: block; width: 100%; }

/* ---------- scenario cards ---------- */
.scenarios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 26px;
}
.scenario-card {
  border-radius: 4px;
  padding: 18px 20px;
  border: 1px solid;
}
.scenario-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 500;
  margin-bottom: 2px;
}
.scenario-sub { font-size: 10.5px; color: var(--muted); margin-bottom: 10px; }
.scenario-value {
  font-family: 'Fraunces', serif;
  font-size: 26px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}
.scenario-pct { font-family: 'IBM Plex Mono', monospace; font-size: 13px; }

/* ---------- bottom row ---------- */
.bottom-row {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 26px;
  margin-top: 26px;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-faint);
  font-size: 12.5px;
}
.summary-row span:first-child { color: var(--muted); }
.summary-row span:last-child { font-family: 'IBM Plex Mono', monospace; color: var(--text); }

footer.app-footer {
  text-align: center;
  color: var(--dim);
  font-size: 11px;
  margin-top: 40px;
}

/* ---------- update toast ---------- */
.update-toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(20px); opacity: 0; pointer-events: none;
  background: var(--panel); color: var(--gold); border: 1px solid var(--gold-dim);
  padding: 10px 16px; border-radius: 8px; font-size: 13px; z-index: 50;
  transition: opacity .25s, transform .25s;
}
.update-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }