:root {
  --bg0: #0f1c18;
  --bg1: #163028;
  --ink: #e8f2ec;
  --muted: #9bb5a8;
  --accent: #d4a017;
  --accent-ink: #1a1400;
  --fail: #e07060;
  --ok: #5ecf9a;
  --line: rgba(232, 242, 236, 0.14);
  --panel: rgba(12, 28, 22, 0.72);
  --font-display: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "Cascadia Mono", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: var(--font-display);
  background: radial-gradient(1200px 700px at 10% -10%, #245544 0%, transparent 55%),
    radial-gradient(900px 600px at 100% 0%, #3a2c10 0%, transparent 50%),
    linear-gradient(160deg, var(--bg0), var(--bg1) 55%, #0b1512);
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 30% 20%, black, transparent 70%);
  opacity: 0.45;
  animation: drift 18s linear infinite;
}

@keyframes drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(48px);
  }
}

.brand-bar {
  padding: 2.5rem 1.5rem 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

.brand {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  animation: rise 0.7s ease-out both;
}

.product {
  margin: 0.35rem 0 0;
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 600;
  animation: rise 0.7s ease-out 0.08s both;
}

.tagline {
  max-width: 42rem;
  color: var(--muted);
  line-height: 1.5;
  animation: rise 0.7s ease-out 0.16s both;
}

.meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: grid;
  gap: 1.25rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.25rem;
  backdrop-filter: blur(8px);
}

h1,
h2 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}

.lede {
  margin: 0 0 1rem;
  color: var(--muted);
}

.field {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.field span {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.7rem 0.8rem;
  border-radius: 0;
}

.split {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 860px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

button {
  appearance: none;
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-display);
  font-weight: 700;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

button:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.status[data-kind='ok'] {
  color: var(--ok);
}
.status[data-kind='fail'],
.status[data-kind='error'] {
  color: var(--fail);
}
.status[data-kind='loading'] {
  color: var(--accent);
}

.error-banner {
  color: var(--fail);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.receipt {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.45;
  min-height: 8rem;
}

.empty {
  color: var(--muted);
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}