:root {
  --bg: #141210;
  --bg2: #1c1916;
  --surface: #221e1a;
  --ink: #f3ebe2;
  --muted: #a89888;
  --accent: #d4893a;
  --accent-hot: #e8a45a;
  --copper: #b87333;
  --accent-ink: #1a1008;
  --line: rgba(243, 235, 226, 0.1);
  --warn: #e8a45a;
  --danger: #e07a6a;
  --ok: #8fba7a;
  --font: "Outfit", system-ui, sans-serif;
  --display: "Sora", "Outfit", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 85% 5%, rgba(212, 137, 58, 0.18), transparent 55%),
    radial-gradient(ellipse 45% 35% at 5% 90%, rgba(184, 115, 51, 0.14), transparent 50%),
    linear-gradient(168deg, #100e0c 0%, var(--bg) 40%, var(--bg2) 100%);
}
.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}
.brand span { color: var(--accent); }
.top nav { display: flex; gap: 0.75rem; align-items: center; }
.top nav a:not(.btn) {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.top nav a:not(.btn):hover { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 1.15rem;
  border-radius: 3px;
  transition: transform 0.15s ease, background 0.2s, opacity 0.2s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn.buy { background: var(--accent); color: var(--accent-ink); }
.btn.buy:hover:not(:disabled) { background: var(--accent-hot); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent-hot); }
.btn.danger-ghost {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(224, 122, 106, 0.35);
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 500;
}
.btn.sm { padding: 0.45rem 0.85rem; font-size: 0.85rem; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* —— Landing —— */
.hero {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 1.5rem 4rem;
  max-width: 42rem;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  left: 1.5rem;
  top: 18%;
  bottom: 22%;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--copper), var(--accent), transparent);
  opacity: 0.55;
  animation: pulse-line 3.2s ease-in-out infinite;
}
@keyframes pulse-line {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 0.7; }
}
.brand-hero {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.6rem, 9vw, 4.2rem);
  letter-spacing: -0.045em;
  margin: 0 0 1.1rem;
  line-height: 0.95;
  padding-left: 1.25rem;
  animation: rise-in 0.7s ease both;
}
.brand-hero em {
  font-style: normal;
  color: var(--accent);
}
.hero h1 {
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
  font-weight: 500;
  margin: 0 0 0.75rem;
  max-width: 26ch;
  padding-left: 1.25rem;
  letter-spacing: -0.02em;
  animation: rise-in 0.7s ease 0.12s both;
}
.lede {
  color: var(--muted);
  margin: 0 0 1.85rem;
  max-width: 38ch;
  padding-left: 1.25rem;
  animation: rise-in 0.7s ease 0.22s both;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-left: 1.25rem;
  animation: rise-in 0.7s ease 0.32s both;
}
@keyframes rise-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.strip {
  padding: 2.5rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  max-width: 42rem;
}
.strip h2 {
  font-family: var(--display);
  margin: 0 0 1rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.strip ul { margin: 0; padding-left: 1.15rem; color: var(--muted); }
.strip li { margin-bottom: 0.45rem; }

.foot {
  padding: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
.foot a { color: var(--accent); }

/* —— App —— */
.app-body .workspace {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.status {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}
.status.on { color: var(--ok); }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.15rem 1.25rem 1.25rem;
}
.panel h2 {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.panel h2 .tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(212, 137, 58, 0.4);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.85rem;
}
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}
input, textarea, select {
  font: inherit;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.65rem 0.75rem;
  transition: border-color 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}
input[type="number"] { font-variant-numeric: tabular-nums; }

.scope-mode {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}
.mode-btn {
  flex: 1;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 0.75rem;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s;
}
.mode-btn.active {
  background: rgba(212, 137, 58, 0.15);
  border-color: var(--accent);
  color: var(--accent-hot);
}

/* Totals */
.totals {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}
.stat {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.85rem 0.9rem;
  min-width: 0;
}
.stat .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.35rem;
  font-family: var(--mono);
}
.stat .value {
  font-family: var(--display);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin: 0;
  color: var(--ink);
  word-break: break-word;
}
.stat .value.hot { color: var(--accent-hot); }
.stat .value.warn { color: var(--warn); }
.stat .value.over { color: var(--danger); }

/* Change rows */
.changes-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}
.changes-head h2 { margin: 0; }

.change-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.change-row {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.85rem;
  display: grid;
  grid-template-columns: 1fr 5.5rem 6.5rem auto;
  gap: 0.55rem 0.65rem;
  align-items: end;
  animation: rise-in 0.35s ease both;
}
.change-row .note-field { grid-column: 1 / -1; }
.change-row .impact {
  grid-column: 1 / -1;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0;
}
.empty-hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
  font-style: italic;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg2);
  color: var(--ink);
  padding: 1.35rem;
  max-width: 22rem;
  width: calc(100% - 2rem);
}
dialog::backdrop { background: rgba(10, 8, 6, 0.7); }
dialog h2 {
  font-family: var(--display);
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}
dialog p { color: var(--muted); font-size: 0.9rem; }
.err { color: var(--danger); font-size: 0.85rem; margin: 0.5rem 0 0; }

@media (max-width: 720px) {
  .totals { grid-template-columns: 1fr 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: span 1; }
  .change-row {
    grid-template-columns: 1fr 1fr;
  }
  .change-row .title-field { grid-column: 1 / -1; }
  .change-row .rm-wrap { grid-column: 1 / -1; justify-self: start; }
}
@media (max-width: 560px) {
  .top { flex-wrap: wrap; gap: 0.75rem; }
  .hero::before { display: none; }
  .brand-hero, .hero h1, .lede, .cta-row { padding-left: 0; }
}