:root {
  --bg: #0a0c10;
  --panel-bg: #11151a;
  --border: #262b33;
  --text: #e6e8eb;
  --muted: #8a8f99;
  --input-bg: #0e1115;
  --placeholder: #4a4f58;
  --field-label: #9aa0aa;
  --accent-surface: #3ddc84;
  --accent-surface-hover: #55e69a;
  --accent-ink: #0b0d10;
  --accent-text: #3ddc84;
  --accent-text-hover: #55e69a;
  --success: #2d9d63;
  --warning-bg: rgba(61, 220, 132, 0.08);
  --warning-border: var(--accent-text);
  --error-bg: rgba(248, 113, 113, 0.08);
  --error-border: #f87171;
  --error-text: #f87171;
  --shadow: rgba(0, 0, 0, 0.4);
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #f3f4f6;
  --panel-bg: #ffffff;
  --border: #dcdfe4;
  --text: #14171c;
  --muted: #5b6169;
  --input-bg: #f6f7f9;
  --placeholder: #9aa1ab;
  --field-label: #4b515a;
  --accent-surface: #22c55e;
  --accent-surface-hover: #16a34a;
  --accent-ink: #08150d;
  --accent-text: #15803d;
  --accent-text-hover: #166534;
  --success: #15803d;
  --warning-bg: rgba(21, 128, 61, 0.08);
  --warning-border: var(--accent-text);
  --error-bg: rgba(220, 38, 38, 0.08);
  --error-border: #dc2626;
  --error-text: #dc2626;
  --shadow: rgba(15, 23, 42, 0.08);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1rem;
  margin: 0;
  transition: background 0.15s, color 0.15s;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

.brand-mark {
  position: fixed;
  top: 1.25rem;
  left: 1.25rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--placeholder);
  text-decoration: none;
  transition: color 0.15s;
}

.brand-mark:hover {
  color: var(--accent-text);
}

.theme-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--field-label);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s;
}

button.theme-toggle:hover {
  background: transparent;
  color: var(--accent-text);
}

button.theme-toggle:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.theme-toggle svg {
  width: 1.1rem;
  height: 1.1rem;
}

.theme-toggle .icon-sun {
  display: none;
}

html[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

html[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

.term-window {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 0 0 1px var(--shadow);
  max-width: 480px;
  width: 90%;
  height: fit-content;
  overflow: hidden;
  transition: background 0.15s, border-color 0.15s;
}

.term-body {
  padding: 2rem 2rem 2.25rem;
}

.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent-text);
  margin: 0 0 0.85rem;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.small {
  font-size: 0.8rem;
}

.warning {
  background: var(--warning-bg);
  border-left: 3px solid var(--warning-border);
  padding: 0.6rem 0.75rem;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--text);
  margin: 1rem 0;
}

.form-error {
  background: var(--error-bg);
  border-left: 3px solid var(--error-border);
  padding: 0.6rem 0.75rem;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--error-text);
  margin: 1rem 0 0;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.field-label {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--field-label);
}

.field-label-hint {
  color: var(--placeholder);
  text-transform: none;
  letter-spacing: normal;
}

textarea,
input[type="text"] {
  width: 100%;
  box-sizing: border-box;
  padding: 0.75rem;
  margin: 0;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

textarea {
  resize: vertical;
  min-height: 8rem;
  line-height: 1.5;
}

input[type="text"] {
  text-overflow: ellipsis;
}

textarea::placeholder,
input[type="text"]::placeholder {
  color: var(--placeholder);
}

textarea:focus-visible,
input[type="text"]:focus-visible {
  border-color: var(--accent-text);
}

.field-group .muted {
  margin: 0;
}

button {
  background: var(--accent-surface);
  color: var(--accent-ink);
  border: none;
  padding: 0.65rem 1.2rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 0.15s;
  outline: none;
}

button:hover {
  background: var(--accent-surface-hover);
}

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

a {
  color: var(--accent-text);
}

a.text-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

a.text-link:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

.share-url,
.secret-box {
  display: block;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 4px;
  word-break: break-all;
  margin: 1rem 0;
  white-space: pre-wrap;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.85rem;
}

.copy-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1rem 0;
}

.copy-row .share-url,
.copy-row .secret-box {
  margin: 0;
}

.copy-btn {
  width: 100%;
  background: var(--accent-surface);
  color: var(--accent-ink);
  border: none;
  padding: 0.65rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 0.15s;
  outline: none;
  white-space: nowrap;
}

.copy-btn:hover {
  background: var(--accent-surface-hover);
}

.copy-btn:focus-visible {
  outline: 2px solid var(--accent-ink);
  outline-offset: 2px;
}

.copy-btn.copied {
  background: var(--success);
  color: var(--accent-ink);
}

.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--placeholder);
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--placeholder);
  text-decoration: none;
  transition: color 0.15s;
}

.site-footer a svg {
  width: 0.8em;
  height: 0.8em;
  position: relative;
  top: 0.05em;
}

.site-footer .icon-github {
  fill: currentColor;
}

.site-footer .icon-external {
  fill: none;
  stroke: currentColor;
}

.site-footer a:hover {
  color: var(--accent-text);
}