:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #2563eb;
  --focus-ring: rgba(37, 99, 235, 0.15);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --primary-bg: #0f172a;
  --primary-hover: #1e293b;
  --primary-text: #ffffff;

  --secondary-bg: #ffffff;
  --secondary-border: #cbd5e1;
  --secondary-hover: #f8fafc;
  --secondary-text: #0f172a;

  --badge-bg: #e2e8f0;
  --badge-text: #334155;

  --error: #dc2626;
  --success: #16a34a;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-card: 10px;
  --radius-btn: 6px;
  --radius-input: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --surface: #141417;
    --surface-alt: #1c1c21;
    --border: #27272a;
    --border-hover: #3f3f46;
    --border-focus: #3b82f6;
    --focus-ring: rgba(59, 130, 246, 0.25);

    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --text-subtle: #52525b;

    --primary-bg: #f4f4f5;
    --primary-hover: #e4e4e7;
    --primary-text: #09090b;

    --secondary-bg: #1c1c21;
    --secondary-border: #27272a;
    --secondary-hover: #27272a;
    --secondary-text: #f4f4f5;

    --badge-bg: #27272a;
    --badge-text: #a1a1aa;

    --error: #ef4444;
    --success: #22c55e;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.header {
  margin-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.brand-icon {
  color: var(--text-primary);
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--badge-bg);
  color: var(--badge-text);
  letter-spacing: 0.02em;
}

.header-desc {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-hint {
  font-size: 0.775rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 18px;
}

input[type="text"],
input[type="password"],
textarea,
select {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 9px 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
  resize: vertical;
  min-height: 72px;
  line-height: 1.5;
}

select {
  height: 38px;
  padding-right: 28px;
  cursor: pointer;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.input-with-button {
  display: flex;
}

.masked-token {
  -webkit-text-security: disc;
}

.input-with-button input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.btn-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-left: none;
  border-top-right-radius: var(--radius-input);
  border-bottom-right-radius: var(--radius-input);
  background: var(--surface-alt);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-toggle:hover {
  background: var(--border-hover);
  color: var(--text-primary);
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--border-focus);
  cursor: pointer;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-btn);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-bg);
  color: var(--primary-text);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--secondary-bg);
  border-color: var(--secondary-border);
  color: var(--secondary-text);
}

.btn-secondary:hover {
  background: var(--secondary-hover);
  border-color: var(--border-hover);
}

.form-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.form-status.error {
  color: var(--error);
  font-weight: 500;
}

.form-status code {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  background: var(--surface-alt);
  padding: 2px 5px;
  border-radius: 4px;
}

.result-section {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

.result-section[hidden] {
  display: none;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}

.result-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.result-expiry {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--text-muted);
  background: var(--surface-alt);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.result-body textarea {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.5;
  background: var(--surface-alt);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 10px 12px;
  resize: vertical;
  min-height: 72px;
}

.result-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
}

.copy-status {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.copy-status.copied {
  color: var(--success);
  font-weight: 500;
}

.footer {
  margin-top: 20px;
  padding: 0 4px;
}

.footer p {
  font-size: 0.775rem;
  color: var(--text-subtle);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .container {
    padding: 24px 16px 40px;
  }

  .card {
    padding: 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .btn-primary {
    width: 100%;
  }

  .result-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .result-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .btn-secondary {
    width: 100%;
  }
}

/* 隐藏 EdgeOne 预览域名自动注入的水印与浮层 */
#edgeone-watermark,
#edgeone-watermark-close,
#fab-popup {
  display: none !important;
}