:root {
  color-scheme: light;
  --bg: #f3efe7;
  --bg-accent: #dfe8e5;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-border: rgba(31, 41, 55, 0.12);
  --text: #1f2937;
  --muted: #596579;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 35%),
    radial-gradient(circle at top right, rgba(220, 118, 51, 0.16), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-accent) 100%);
  color: var(--text);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

body {
  padding: 28px 18px 40px;
}

a {
  color: inherit;
}

code,
pre {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

.page-shell {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.hero {
  padding: 14px 2px 30px;
  max-width: 780px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 7px 12px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.97;
  letter-spacing: -0.04em;
}

.lede {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.65;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.95fr);
  gap: 24px;
  align-items: start;
}

.panel {
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

form {
  display: grid;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
}

input[type="file"],
textarea,
select {
  width: 100%;
  border: 1px solid rgba(31, 41, 55, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  font: inherit;
}

input[type="file"],
select {
  padding: 12px 14px;
}

textarea {
  min-height: 360px;
  padding: 14px;
  resize: vertical;
  line-height: 1.6;
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

button,
.download-link,
.download-grid a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease, opacity 0.16s ease;
}

button:hover,
.download-link:hover,
.download-grid a:hover {
  background: var(--accent-strong);
  color: white;
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.7;
  cursor: progress;
}

.download-link {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.download-link[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.secondary {
  display: grid;
  gap: 20px;
}

.download-grid {
  display: grid;
  gap: 12px;
}

.download-grid a {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.65;
}

.small-copy {
  margin: 0 0 10px;
  color: var(--muted);
}

.prompt {
  margin: 0;
  padding: 16px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.05);
  white-space: pre-wrap;
  line-height: 1.6;
}

.status {
  margin: 0;
  min-height: 1.5em;
  color: var(--muted);
  white-space: pre-line;
}

.status[data-tone="success"] {
  color: #116b45;
}

.status[data-tone="error"] {
  color: #b42318;
}

.status[data-tone="info"] {
  color: #0f766e;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding-inline: 12px;
  }

  .panel {
    padding: 18px;
  }
}