:root {
  --bg: #0f1419;
  --bg2: #1a222c;
  --ink: #eef2f6;
  --muted: #8b97a8;
  --accent: #f0a202;
  --accent-ink: #1a1200;
  --line: rgba(238, 242, 246, 0.12);
  --danger: #ff7b72;
  --panel: rgba(26, 34, 44, 0.72);
  --font: "Public Sans", system-ui, sans-serif;
  --display: "Bricolage Grotesque", "Public Sans", sans-serif;
}

* { 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% 55% at 85% 5%, rgba(240, 162, 2, 0.18), transparent 55%),
    radial-gradient(ellipse 45% 40% at 5% 90%, rgba(70, 110, 160, 0.22), transparent 50%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 28px,
      rgba(238, 242, 246, 0.02) 28px,
      rgba(238, 242, 246, 0.02) 29px
    ),
    linear-gradient(160deg, var(--bg), #151c26 45%, var(--bg2));
}

.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;
}
.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;
}

.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 1.1rem;
  border-radius: 2px;
}
.btn.buy { background: var(--accent); color: var(--accent-ink); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.tiny {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.hero {
  min-height: calc(100vh - 4rem);
  display: grid;
  align-items: center;
  padding: 3rem 1.5rem 4rem;
  gap: 2.5rem;
  max-width: 64rem;
  margin: 0 auto;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .hero {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-copy { max-width: 34rem; }
.brand-hero {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.8rem, 9vw, 4.6rem);
  letter-spacing: -0.05em;
  margin: 0 0 1rem;
  line-height: 0.95;
}
.hero h1 {
  font-size: clamp(1.2rem, 2.8vw, 1.55rem);
  font-weight: 600;
  margin: 0 0 0.75rem;
  max-width: 24ch;
  letter-spacing: -0.02em;
}
.lede {
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 38ch;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero-visual {
  position: relative;
  min-height: 18rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.jar {
  width: min(100%, 20rem);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(240, 162, 2, 0.35);
  background:
    conic-gradient(from 210deg, var(--accent) 0 62%, rgba(238, 242, 246, 0.08) 62% 100%);
  mask: radial-gradient(circle at center, transparent 54%, #000 55%);
  -webkit-mask: radial-gradient(circle at center, transparent 54%, #000 55%);
  animation: spin-slow 18s linear infinite;
}
.jar-core {
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(240, 162, 2, 0.14), rgba(26, 34, 44, 0.9));
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
}
.jar-core strong {
  font-family: var(--display);
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  letter-spacing: -0.04em;
  line-height: 1;
}
.jar-core span {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.35rem;
}
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

.strip {
  padding: 2.5rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  max-width: 40rem;
  margin: 0 auto;
}
.strip h2 {
  font-family: var(--display);
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}
.strip ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.strip li { margin-bottom: 0.4rem; }

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

.app-body {
  background:
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(240, 162, 2, 0.1), transparent 50%),
    var(--bg);
}

.workspace {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.status {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--line);
  color: var(--accent);
}

.math-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
@media (min-width: 720px) {
  .math-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.stat {
  padding: 1rem 0.9rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
}
.stat .label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}
.stat .value {
  font-family: var(--display);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.controls {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .controls {
    grid-template-columns: 140px 1fr 1fr;
    align-items: end;
  }
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}
input, textarea, select {
  font: inherit;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.7rem 0.8rem;
}
input:focus, textarea:focus {
  outline: 2px solid rgba(240, 162, 2, 0.35);
  outline-offset: 1px;
}

.entry-form {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
}
@media (min-width: 720px) {
  .entry-form {
    grid-template-columns: 140px 150px 1fr auto;
    align-items: end;
  }
}

.entries {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.entries h2 {
  font-family: var(--display);
  font-size: 1.1rem;
  margin: 0.5rem 0 0;
  letter-spacing: -0.02em;
}
.entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.entry-main { min-width: 0; }
.entry-amount {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.entry-meta {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.entry-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.empty {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
  padding: 1rem 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg2);
  color: var(--ink);
  padding: 1.25rem;
  max-width: 22rem;
  width: calc(100% - 2rem);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
dialog h2 {
  font-family: var(--display);
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
dialog p { color: var(--muted); font-size: 0.9rem; }
.err { color: var(--danger); font-size: 0.85rem; }

@media (max-width: 560px) {
  .top { flex-wrap: wrap; gap: 0.75rem; }
  .entry {
    grid-template-columns: 1fr;
  }
  .entry-actions { justify-content: flex-start; }
}