/* ── Oransim Shell Styles · T1 · Light Enterprise ─────────────────────────
 * Pure vanilla CSS. Depends on CSS variables from theme.css.
 * DO NOT redefine color tokens here — use hsl(var(--token)) throughout.
 */

/* ── Reset / base ──────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

a {
  text-decoration: none;
}

/* ── TopNav ────────────────────────────────────────────────────────────── */
.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: hsl(var(--background) / 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid hsl(var(--border) / 0.1);
}

.topnav-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: hsl(var(--accent));
  flex-shrink: 0;
}

.logo-text {
  font-family: Urbanist, Inter, system-ui, sans-serif;
  font-size: 1.125rem;   /* text-lg ≈ 18px */
  font-weight: 400;
  letter-spacing: 0.02em;
  color: hsl(var(--foreground));
}

.topnav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Language toggle pill */
.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  font-size: 12px;
  font-weight: 500;
  color: hsl(var(--foreground));
  background: transparent;
  transition: background 180ms ease, border-color 180ms ease;
}

.pill-btn:hover {
  background: hsl(var(--muted));
  border-color: hsl(var(--border));
}

/* Credits pill */
.credits-pill {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0;
  border: 1px solid hsl(var(--border));
  border-radius: 12px;
  font-size: 12px;
  font-weight: 300;
  color: hsl(var(--foreground));
  overflow: hidden;
  transition: box-shadow 180ms ease;
}

.credits-pill:hover {
  box-shadow: var(--shadow-card-hover);
}

.credits-upgrade {
  padding: 0 12px;
}

.credits-divider {
  width: 1px;
  height: 100%;
  background: hsl(var(--border));
  flex-shrink: 0;
  align-self: stretch;
}

.credits-amount {
  padding: 0 12px;
  font-weight: 400;
}

/* Avatar */
.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: hsl(var(--accent));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  margin-left: 4px;
  flex-shrink: 0;
  user-select: none;
}

/* ── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 56px;
  left: 0;
  bottom: 0;
  width: 64px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  background: hsl(var(--background));
  border-right: 1px solid hsl(var(--border));
  overflow: hidden;
  transition: width 300ms ease;
}

/* Hover 自动展开 · 不 hover 自动折叠 */
.sidebar:hover {
  width: 240px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  cursor: pointer;
  color: hsl(var(--muted-foreground));
  font-size: 13.5px;
  font-weight: 400;
  border-radius: 8px;
  margin: 2px 8px;
  white-space: nowrap;
  transition: background 200ms ease, color 200ms ease;
  position: relative;
  width: calc(100% - 16px);
}

.nav-item:hover {
  background: hsl(var(--accent) / 0.06);
  color: hsl(var(--foreground));
}

.nav-item[data-active] {
  background: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
  font-weight: 500;
}

/* Active left-bar indicator */
.nav-item[data-active]::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 2px 2px 0;
  background: hsl(var(--accent));
}

.nav-icon {
  flex-shrink: 0;
  min-width: 20px;
}

.nav-label {
  opacity: 1;
  transition: opacity 150ms ease;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Hover 时显示文字 · 否则隐藏 */
.sidebar:not(:hover) .nav-label {
  opacity: 0;
  pointer-events: none;
}

/* ── Sidebar footer (collapse toggle) ──────────────────────────────────── */
/* ── Main content ───────────────────────────────────────────────────────── */
.content {
  margin-left: 64px;
  padding-top: 56px;
  min-height: 100vh;
  background: hsl(var(--background));
  transition: margin-left 300ms ease;
}

/* View slot placeholder */
.view-slot-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 56px);
  font-size: 14px;
  font-weight: 300;
  color: hsl(var(--muted-foreground));
  letter-spacing: 0.02em;
}