:root {
  --bg: #0a0a0b;
  --surface: #141416;
  --subtle: #1c1c20;
  --fg: #f4f4f5;
  --muted: #a1a1aa;
  --fg-subtle: #71717a;
  --primary: #d4d8e0;
  --primary-fg: #0a0a0b;
  --ring: color-mix(in oklab, var(--fg) 35%, transparent);
  --danger: #f87171;
  --radius-lg: 12px;
  --radius-xl: 24px;
  --shadow-border: 0 0 0 1px rgba(255, 255, 255, 0.08);
  --shadow-border-hover: 0 0 0 1px rgba(255, 255, 255, 0.13);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --motion-quick: 150ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.page {
  display: flex;
  min-height: 100dvh;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

main {
  width: 100%;
  max-width: 32rem;
  padding: 3rem 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.credit {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 32rem;
  padding: 0 1.25rem 2rem;
}

.credit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0.25rem 0.875rem 0.25rem 0.25rem;
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow-border);
  color: var(--fg);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    box-shadow var(--motion-quick) var(--ease-out),
    transform var(--motion-quick) var(--ease-out);
}

.credit-btn:hover {
  box-shadow: var(--shadow-border-hover);
}

.credit-btn:active {
  transform: scale(0.98);
}

.credit-btn__icon {
  display: block;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  object-fit: cover;
}

.kicker {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.025em;
  color: var(--muted);
}

h1 {
  margin: 0.5rem 0 0;
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.lead {
  margin: 0.75rem 0 0;
  max-width: 65ch;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.5;
  text-wrap: pretty;
}

form,
.result {
  margin-top: 2rem;
  padding: 1rem;
  background: var(--subtle);
  border-radius: var(--radius-xl);
}

.result {
  margin-top: 1.25rem;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
}

.row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

@media (min-width: 640px) {
  .row {
    flex-direction: row;
  }
}

input {
  flex: 1;
  min-height: 2.75rem;
  width: 100%;
  border: 0;
  border-radius: var(--radius-lg);
  padding: 0 0.875rem;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 1rem;
  box-shadow: var(--shadow-border);
  outline: none;
}

input::placeholder {
  color: var(--fg-subtle);
}

input:focus-visible {
  box-shadow: var(--shadow-border);
  outline: 2px solid var(--ring);
  outline-offset: 0;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  min-width: 7rem;
  border: 0;
  border-radius: var(--radius-lg);
  padding: 0 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  background: var(--primary);
  color: var(--primary-fg);
  transition:
    opacity var(--motion-quick) var(--ease-out),
    transform var(--motion-quick) var(--ease-out),
    background-color var(--motion-quick) var(--ease-out),
    color var(--motion-quick) var(--ease-out),
    box-shadow var(--motion-quick) var(--ease-out);
}

button:hover:not(:disabled) {
  opacity: 0.9;
}

button:active:not(:disabled) {
  transform: scale(0.98);
}

button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

@media (min-width: 640px) {
  #submit {
    width: 7rem;
    flex-shrink: 0;
  }
}

button.secondary {
  background: var(--surface);
  color: var(--fg);
  box-shadow: var(--shadow-border);
}

button.secondary:hover:not(:disabled) {
  opacity: 1;
  box-shadow: var(--shadow-border-hover);
}

.error {
  margin: 0.75rem 0 0;
  color: var(--danger);
  font-size: 0.875rem;
}

.meta {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.meta-name {
  color: var(--fg-subtle);
}

.link-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.link {
  margin: 0;
  flex: 1;
  min-width: 0;
  word-break: break-all;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.875rem;
  line-height: 1.625;
}

.copy-icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  min-width: 0;
  min-height: 0;
  margin-top: 0.125rem;
  padding: 0;
}

.copy-icon .icon-check {
  display: none;
}

.copy-icon.is-copied .icon-copy {
  display: none;
}

.copy-icon.is-copied .icon-check {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}