/* ==================== onboarding.css ==================== */
/* 首次访问引导：模式选择、本地存储路径、分区功能指引 */

/* ---------- 欢迎层（模式选择 / 登录 / 本地路径） ---------- */
.onb-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.onb-backdrop {
  position: absolute;
  inset: 0;
  background: var(--color-bg);
  opacity: 0.96;
}

@supports (backdrop-filter: blur(6px)) {
  .onb-backdrop { backdrop-filter: blur(6px); opacity: 0.92; }
}

.onb-welcome {
  position: relative;
  max-width: 780px;
  width: 100%;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-paper);
  padding: 36px 40px 30px;
  text-align: center;
  animation: onb-rise 0.35s ease;
}

@keyframes onb-rise {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.onb-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  border-radius: 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.onb-welcome h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
  color: var(--color-text);
  font-family: var(--font-sans);
}

.onb-sub {
  margin: 0 auto 24px;
  max-width: 560px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.onb-step-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
}

/* ---------- 模式选择卡片 ---------- */
.onb-mode-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .onb-mode-cards { grid-template-columns: 1fr; }
  .onb-welcome { padding: 28px 20px 24px; }
}

.onb-mode-card {
  text-align: left;
  background: var(--color-bg-sidebar);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 20px 18px 16px;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  color: var(--color-text);
  font-family: var(--font-sans);
}

.onb-mode-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.onb-mode-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.onb-mode-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.onb-mode-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.onb-mode-feats {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

.onb-mode-feats li::before {
  content: '·';
  margin-right: 6px;
  color: var(--color-primary);
  font-weight: 700;
}

/* ---------- 登录 / 注册表单 ---------- */
.onb-form {
  max-width: 380px;
  margin: 0 auto;
  text-align: left;
}

.onb-form input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  margin-bottom: 10px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-sidebar);
  color: var(--color-text);
  font-size: 0.92rem;
}

.onb-form input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.onb-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.onb-form-actions.onb-center {
  justify-content: center;
}

.onb-error { color: var(--color-danger) !important; }

/* 通透的次要按钮（引导专用） */
.onb-overlay .btn-ghost,
.onb-tour .btn-ghost {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
}

.onb-overlay .btn-ghost:hover,
.onb-tour .btn-ghost:hover {
  color: var(--color-primary);
}

.onb-btn-lg {
  padding: 10px 22px;
  font-size: 0.95rem;
}

/* ---------- 本地路径步骤 ---------- */
.onb-folder-path-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  max-width: 520px;
  margin: 0 auto 18px;
  padding: 10px 14px;
  border: 1px dashed var(--color-border);
  border-radius: 10px;
  background: var(--color-bg-sidebar);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
  text-align: left;
}

.onb-folder-path-preview svg { flex-shrink: 0; color: var(--color-primary); }

.onb-folder-note {
  max-width: 520px;
  margin: 0 auto 18px;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.7;
  text-align: left;
}

.onb-center-hint {
  margin-top: 20px;
  text-align: center;
}

/* ---------- 分区功能指引 ---------- */
.onb-tour {
  position: fixed;
  inset: 0;
  z-index: 3000;
  pointer-events: none; /* 让高亮区域可正常点击 */
}

.onb-spotlight {
  position: fixed;
  display: none;
  border-radius: 10px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.55);
  border: 2px solid var(--color-primary);
  transition: all 0.25s ease;
  pointer-events: none;
}

.onb-tooltip {
  position: fixed;
  display: none;
  max-width: 360px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-paper);
  padding: 16px 18px;
  pointer-events: auto;
  animation: onb-rise 0.25s ease;
  font-family: var(--font-sans);
}

.onb-tooltip-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.onb-step-num {
  flex-shrink: 0;
  min-width: 44px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
}

.onb-tooltip h3 {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-text);
}

.onb-tooltip p {
  margin: 0 0 14px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.onb-tour-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.onb-tour-nav {
  display: flex;
  gap: 8px;
}