/* 工具箱通用样式 - tools.rdzn.cc */

:root {
  --bg: #f5f5f7;
  --card: #fff;
  --text: #1d1d1f;
  --sub: #86868b;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-light: #e8f4fd;
  --border: #d2d2d7;
  --danger: #ff3b30;
  --success: #34c759;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── 工具页顶部导航栏 ── */
.tool-header {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-shrink: 0;
  gap: 8px;
}

.tool-header .logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

.tool-header .logo a {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-header .logo svg {
  width: 20px;
  height: 20px;
}

.tool-header .header-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ── 按钮系统 ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 5px 10px;
  border-radius: 7px;
  border: none;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: #e8e8ed;
  color: var(--text);
}
.btn-secondary:hover {
  background: #dcdce2;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  background: rgba(0,0,0,0.03);
}
.btn-outline.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-sm {
  padding: 3px 7px;
  font-size: 10px;
  border-radius: 5px;
}

.btn-lg {
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  gap: 8px;
}

.btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.btn-lg svg {
  width: 18px;
  height: 18px;
}

/* ── Toast 通知 ── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  z-index: 999;
  box-shadow: var(--shadow-lg);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── 页脚 ── */
.footer-note {
  text-align: center;
  color: var(--sub);
  font-size: 12px;
  margin-top: 30px;
}

/* ── 响应式 ── */
@media (max-width: 768px) {
  .tool-header {
    padding: 6px 10px;
    flex-wrap: wrap;
    gap: 4px;
  }
  .tool-header .logo {
    font-size: 12px;
  }
  .tool-header .logo svg {
    width: 16px;
    height: 16px;
  }
  .btn {
    padding: 4px 8px;
    font-size: 10px;
  }
  .btn-lg {
    padding: 10px 20px;
    font-size: 13px;
  }
  .tool-header .header-actions {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
  }
}