/*
 * [站点注释 Site Note]
 * 文件: D:\Documents\GitHub\whwdzg.github.io\css\tool-base64.css
 * 作用: 页面样式与布局规则，按模块拆分维护。
 * English: Module-level styles for layout and presentation.
 */
.base64-tool-card {
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(12px);
}

.base64-tool-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.base64-tool-panel label {
  font-weight: 600;
  color: var(--text-color, #111827);
}

.base64-tool-panel textarea {
  width: 100%;
  max-width: 100%;
  min-height: 140px;
  font-family: var(--font-mono, "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif);
  font-size: 1rem;
  border-radius: 10px;
  padding: 0.95rem;
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  background: var(--card-bg, #ffffff);
  color: var(--text-color, #111827);
  resize: vertical;
  box-shadow: 0 10px 30px var(--shadow-color, rgba(15, 23, 42, 0.18));
  backdrop-filter: blur(6px);
  transition: border 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  box-sizing: border-box;
}

.base64-tool-panel textarea::-webkit-resizer {
  display: none;
}

.base64-tool-panel textarea::-moz-resizer {
  display: none;
}

.base64-tool-panel textarea:focus {
  outline: none;
  border-color: var(--border-color);
  background: var(--input-focus-bg);
  box-shadow: 0 -2px 0 0 var(--primary-color) inset, 0 0 0 1px var(--hover-bg);
}

.base64-textarea-wrapper {
  position: relative;
}

.base64-copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: rgba(180, 180, 180, 0.2);
  border: none;
  border-radius: 6px;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  transition: background 0.2s ease, transform 0.2s ease;
  z-index: 2;
}

.base64-copy-btn:hover {
  background: rgba(180, 180, 180, 0.4);
}

.base64-copy-btn.copied {
  background: var(--color-secondary, #10b981);
  color: #fff;
}

.base64-copy-btn .fluent-icon {
  font-family: 'FluentSystemIcons-Regular';
  font-size: 1rem;
  pointer-events: none;
}

.fluent-icon {
  font-family: 'FluentSystemIcons-Regular';
  font-weight: 400;
  font-style: normal;
  font-variant: normal;
  line-height: 1;
  display: inline-flex;
}


.base64-tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.base64-tool-actions button {
  flex: 1 1 150px;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.base64-tool-actions button[data-base64-action="encode"] {
  background: var(--color-accent, #3b82f6);
  color: #fff;
}

.base64-tool-actions button[data-base64-action="decode"] {
  background: var(--color-secondary, #10b981);
  color: #fff;
}

.base64-tool-actions button[data-base64-action="clear"] {
  background: transparent;
  border-color: var(--border-color, rgba(0, 0, 0, 0.2));
  color: var(--neutral-color, #1f2937);
}

.base64-tool-actions button:hover {
  filter: brightness(1.08);
}

.base64-tool-feedback {
  min-height: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-muted, #6c7280);
  transition: color 0.2s ease;
}

.base64-tool-feedback[data-state="success"] {
  color: var(--color-secondary, #10b981);
}

.base64-tool-feedback[data-state="error"] {
  color: var(--color-danger, #ef4444);
}