:root {
  color-scheme: dark;
  --bg: #11100e;
  --panel: #1d1a17;
  --panel-strong: #29231f;
  --text: #f8efe2;
  --muted: #c5b7a4;
  --accent: #ff6a3d;
  --accent-dark: #b63c1d;
  --border: #493d35;
  --danger: #ffb199;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(255, 106, 61, 0.24), transparent 34rem),
    linear-gradient(135deg, #100f0d 0%, #1d1815 55%, #090807 100%);
  color: var(--text);
}

.shell {
  width: min(100% - 2rem, 760px);
  margin: 0 auto;
  padding: 4rem 0;
}

.hero {
  margin-bottom: 2rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.6rem, 8vw, 5.6rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.lede {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.65;
}

.card {
  padding: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid var(--border);
  border-radius: 26px;
  background: rgba(29, 26, 23, 0.86);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}

label {
  display: block;
  margin: 1rem 0 0.4rem;
  color: var(--muted);
  font-weight: 700;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel-strong);
  color: var(--text);
  font: inherit;
  line-height: 1.5;
  outline: none;
}

textarea {
  min-height: 13rem;
  padding: 1rem;
  resize: vertical;
}

input,
select {
  padding: 0.85rem 1rem;
}

select {
  appearance: none;
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 106, 61, 0.18);
}

.password-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
}

.password-row button {
  margin-top: 0;
}

.copy-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
}

.copy-row button {
  margin-top: 0;
}

.icon-button {
  aspect-ratio: 1;
  padding: 0.85rem;
}

.icon-button svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  margin-top: 1rem;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #190b05;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  padding: 0.85rem 1.25rem;
}

button:hover {
  background: #ff815d;
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

button.secondary {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
}

button.secondary:hover {
  border-color: var(--accent);
  background: rgba(255, 106, 61, 0.1);
}

.hint,
.warning,
.status {
  color: var(--muted);
  line-height: 1.55;
}

.warning {
  color: var(--danger);
  font-weight: 700;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
}

.result {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.share-steps {
  padding-left: 1.25rem;
  color: var(--muted);
  line-height: 1.55;
}

.share-steps li + li {
  margin-top: 0.35rem;
}

.share-message {
  min-height: 8rem;
}

.status {
  min-height: 1.6rem;
  margin-top: 1rem;
}

pre {
  overflow: auto;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #0c0b0a;
  color: var(--text);
  font-size: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.hidden {
  display: none;
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 1rem, 760px);
    padding: 2rem 0;
  }

  .password-row,
  .copy-row {
    grid-template-columns: 1fr;
  }

  button,
  button.secondary {
    width: 100%;
  }
}