:root {
  --bg: #0f172a;
  --card: #111827;
  --card-border: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --input-bg: #0b1220;
  --input-border: #334155;
  --button: #2563eb;
  --button-hover: #1d4ed8;
  --button-secondary: #374151;
  --button-secondary-hover: #4b5563;
  --success-bg: #052e16;
  --success-border: #166534;
  --success-text: #bbf7d0;
  --error-bg: #450a0a;
  --error-border: #991b1b;
  --error-text: #fecaca;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.muted {
  margin: 0 0 24px;
  color: var(--muted);
  line-height: 1.5;
}

.form {
  display: grid;
  gap: 12px;
}

label {
  font-size: 14px;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--button);
}

textarea {
  min-height: 140px;
  resize: vertical;
  font-family: monospace;
  line-height: 1.4;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: var(--button);
  color: white;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.button:hover {
  background: var(--button-hover);
}

.button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.button-secondary {
  background: var(--button-secondary);
}

.button-secondary:hover {
  background: var(--button-secondary-hover);
}

.actions-column {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.message {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid transparent;
}

.message.success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.message.error {
  background: var(--error-bg);
  border-color: var(--error-border);
  color: var(--error-text);
}

.token-section {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.success-title {
  font-weight: 700;
  color: var(--success-text);
}

.footer-text {
  margin-top: 20px;
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

.footer-text a {
  color: #93c5fd;
  text-decoration: none;
}

.footer-text a:hover {
  text-decoration: underline;
}

.hidden {
  display: none;
}

.card-wide {
  max-width: 760px;
}

.inline-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.token-input {
  min-height: 96px;
}

.sessions-section {
  margin-top: 24px;
}

.sessions-section h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

.sessions-list {
  display: grid;
  gap: 12px;
}

.session-item {
  padding: 14px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.45);
}

.session-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  overflow-wrap: anywhere;
}

.session-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--success-border);
  color: var(--success-text);
  background: var(--success-bg);
  font-size: 12px;
}

.session-meta {
  font-size: 13px;
  color: var(--muted);
  margin: 4px 0;
  overflow-wrap: anywhere;
}

.session-revoke-btn {
  margin-top: 10px;
}

.compact-form {
  max-width: 440px;
}

@media (max-width: 640px) {
  .inline-actions {
    grid-template-columns: 1fr;
  }
}