/**
 * Agent sidebar rail — Riter-inspired dark navigation (PC).
 * Conserves existing IDs (#sessions-list, #new-chat-btn, #logout-btn, …).
 */

#win-sidebar.sw-rail {
  --rail-bg: var(--sw-bg-main);
  --rail-bg-elevated: var(--sw-surface-card);
  --rail-bg-hover: var(--sw-surface-elevated);
  --rail-bg-active: var(--sw-surface-elevated);
  --rail-border: var(--sw-border-strong);
  --rail-text: var(--sw-text-main);
  --rail-text-muted: var(--sw-text-muted);
  --rail-text-dim: var(--sw-text-subtle);
  --rail-text-soft: color-mix(in srgb, var(--sw-text-main) 88%, transparent);
  --rail-text-mid: color-mix(in srgb, var(--sw-text-main) 72%, transparent);
  --rail-icon: var(--sw-icon);
  --rail-accent: var(--sw-text-main);
  --rail-accent-soft: var(--sw-surface-elevated);
  --rail-focus: color-mix(in srgb, var(--sw-text-main) 28%, transparent);
  --rail-chip: color-mix(in srgb, var(--sw-text-main) 10%, transparent);
  --rail-radius: 12px;
  --rail-radius-sm: 10px;
  --rail-pad-x: 8px;
  --rail-expanded: 260px;
  --rail-collapsed: 52px;
  --rail-collapse-dur: 0.52s;
  --rail-collapse-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --rail-fade-dur: 0.22s;
  --rail-font: "Manrope", "IBM Plex Sans", system-ui, sans-serif;
  width: var(--w-sidebar, var(--rail-expanded));
  background: var(--rail-bg);
  border: 1px solid var(--rail-border);
  border-radius: 18px;
  color: var(--rail-text);
  box-shadow: var(--sw-shadow-window);
  overflow: hidden;
  transition:
    width var(--rail-collapse-dur) var(--rail-collapse-ease),
    min-width var(--rail-collapse-dur) var(--rail-collapse-ease),
    background var(--sw-motion-base) var(--sw-motion-soft),
    color var(--sw-motion-base) var(--sw-motion-soft),
    border-color var(--sw-motion-base) var(--sw-motion-soft);
  will-change: width;
}

/* PC: flush sidebar to the workspace edges (no outer gaps). */
body:not(.is-mobile) #app-screen.hypr-workspace {
  padding-top: 0;
  padding-bottom: 0;
  padding-left: 0;
}

body:not(.is-mobile) #app-screen.hypr-workspace #win-sidebar.sw-rail.window-panel {
  /* Darker than workspace canvas (--sw-bg-main #1a1a1e). */
  --rail-bg: #101012;
  align-self: stretch;
  height: 100%;
  min-height: 100%;
  border-radius: 0;
  border-top: 0;
  border-bottom: 0;
  border-left: 0;
  border-right: 1px solid var(--rail-border);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: var(--rail-bg);
}

body:not(.is-mobile) #app-screen.hypr-workspace .resize-handle[data-pair="sidebar"] {
  margin-left: 0;
  margin-right: 0;
}

#win-sidebar.sw-rail .window-body.sw-rail__body {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 14px 0 12px;
  min-height: 0;
  background: transparent;
}

#win-sidebar.sw-rail .sw-rail__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* —— Chrome (mobile close / PC collapse fallback) —— */
body:not(.is-mobile) #win-sidebar.sw-rail .sw-rail__chrome {
  display: none;
}

body:not(.is-mobile) #win-sidebar.sw-rail .btn-expand-strip {
  display: none !important;
}

body.is-mobile #win-sidebar.sw-rail .sw-rail__chrome {
  background: transparent;
  border-bottom: 1px solid var(--rail-border);
}

/* —— Brand: toggle shares the same left icon column as menu rows —— */
#win-sidebar.sw-rail .sw-rail__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 6px 16px;
  padding: 0 10px;
  min-height: 42px;
  flex-shrink: 0;
}

#win-sidebar.sw-rail .sidebar-brand-title {
  margin: 0;
  padding: 0;
  min-width: 0;
  flex: 1;
  font-family: "Syne", "Manrope", system-ui, sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--rail-text);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity var(--rail-fade-dur) linear;
}

#win-sidebar.sw-rail .sidebar-company-name {
  display: none !important;
}

#win-sidebar.sw-rail .sw-rail__brand.is-loading .sidebar-brand-title {
  opacity: 0.45;
}

#win-sidebar.sw-rail .sw-rail__brand-toggle.btn-toggle-view {
  width: 26px;
  height: 26px;
  min-width: 26px;
  padding: 0;
  margin: 0 0 0 -3px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--rail-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  font-size: 0;
  text-transform: none;
  letter-spacing: 0;
  box-shadow: none;
  transition:
    background-color 0.18s ease,
    color 0.18s ease;
}

#win-sidebar.sw-rail .sw-rail__brand-toggle.btn-toggle-view:hover {
  background: var(--rail-bg-hover);
  color: var(--rail-text);
  border: 0;
  transform: none;
}

#win-sidebar.sw-rail .sw-rail__brand-toggle.btn-toggle-view:active {
  transform: scale(0.96);
}

#win-sidebar.sw-rail .sw-rail__brand-toggle:focus-visible {
  outline: 2px solid var(--rail-focus);
  outline-offset: 1px;
}

#win-sidebar.sw-rail .sw-rail__brand-toggle-ico {
  display: block;
  width: 18px;
  height: 18px;
  transition: transform 0.35s var(--rail-collapse-ease);
}

#win-sidebar.sw-rail.window-collapsed .sw-rail__brand-toggle-ico {
  transform: scaleX(-1);
}

/* —— Primary menu (Claude-style: icon + label rows) —— */
#win-sidebar.sw-rail .sw-rail__menu {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin: 0 6px 16px;
  padding: 0;
  flex-shrink: 0;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav {
  width: 100%;
  min-height: 42px;
  margin: 0;
  padding: 0 10px;
  gap: 12px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--rail-text-soft);
  font-size: 15.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-transform: none;
  box-shadow: none;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav:hover {
  background: var(--rail-bg-hover);
  color: var(--rail-text);
  box-shadow: none;
  outline: none;
  border-color: transparent;
  transform: none;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav:active {
  background: var(--rail-bg-active);
  box-shadow: none;
  outline: none;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav.is-active,
#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav[aria-pressed="true"] {
  background: var(--rail-bg-active);
  color: var(--rail-text);
  box-shadow: none;
  outline: none;
  border-color: transparent;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail-nav:focus-visible {
  outline: none;
  box-shadow: none;
}

#win-sidebar.sw-rail .sw-rail__menu .sw-rail__icon {
  width: 20px;
  height: 20px;
  color: var(--rail-icon);
}

#win-sidebar.sw-rail .sw-rail__icon--new {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--rail-chip);
  color: var(--rail-text);
}

#win-sidebar.sw-rail .sw-rail-nav__svg {
  display: block;
  overflow: visible;
}

#win-sidebar.sw-rail .sw-ico-motion,
#win-sidebar.sw-rail .sw-ico-new,
#win-sidebar.sw-rail .sw-ico-auto__fwd,
#win-sidebar.sw-rail .sw-ico-auto__back {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

/* New chat: half turn on row hover, full turn while pressed */
#win-sidebar.sw-rail #new-chat-btn:hover .sw-ico-new {
  transform: rotate(45deg);
}

#win-sidebar.sw-rail #new-chat-btn:active .sw-ico-new {
  transform: rotate(90deg);
}

/* Automation: each arrow slides in its own direction */
#win-sidebar.sw-rail #sidebar-automation-btn:hover .sw-ico-auto__fwd {
  transform: translateX(2.25px);
}

#win-sidebar.sw-rail #sidebar-automation-btn:hover .sw-ico-auto__back {
  transform: translateX(-2.25px);
}

#win-sidebar.sw-rail #sidebar-settings-btn:hover .sw-ico-gear {
  transform: rotate(28deg);
}

/* —— Nav —— */
#win-sidebar.sw-rail .sw-rail__nav {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 0 6px;
}

#win-sidebar.sw-rail .sw-rail__section {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

#win-sidebar.sw-rail .sw-rail__section-label {
  padding: 4px 10px 8px;
  font-family: var(--rail-font);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--rail-text-muted);
}

#win-sidebar.sw-rail .sw-rail__item {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  min-height: 40px;
  margin: 0 0 2px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--rail-radius-sm);
  background: transparent;
  color: var(--rail-text-mid);
  font-family: var(--rail-font);
  font-size: 13.5px;
  font-weight: 550;
  letter-spacing: -0.01em;
  text-transform: none;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

#win-sidebar.sw-rail .sw-rail__item:hover {
  background: var(--rail-bg-hover);
  color: var(--rail-text);
}

#win-sidebar.sw-rail .sw-rail__item.is-active,
#win-sidebar.sw-rail .sw-rail__item--section.is-active {
  background: var(--rail-bg-active);
  color: var(--rail-text);
  box-shadow: inset 0 0 0 1px var(--rail-border);
}

#win-sidebar.sw-rail .sw-rail__item.is-active .sw-rail__icon,
#win-sidebar.sw-rail .sw-rail__item--section.is-active .sw-rail__icon {
  color: var(--rail-text);
  filter: none;
}

#win-sidebar.sw-rail .sw-rail__icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--rail-text-muted);
}

#win-sidebar.sw-rail .sw-rail__label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#win-sidebar.sw-rail .sw-rail__badge,
#win-sidebar.sw-rail .sw-rail__pill {
  flex-shrink: 0;
  min-width: 18px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--rail-chip);
  color: var(--rail-text-muted);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.3;
  text-align: center;
}

#win-sidebar.sw-rail .sw-rail__pill {
  background: var(--rail-chip);
}

/* —— Sessions (Claude Pinned-style flat list) —— */
#win-sidebar.sw-rail .sw-rail__sessions,
#win-sidebar.sw-rail #sessions-list {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  border-left: 0;
}

#win-sidebar.sw-rail .sessions-pinned {
  flex-shrink: 0;
  background: transparent;
  z-index: 2;
}

#win-sidebar.sw-rail .sessions-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 0 0 10px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

#win-sidebar.sw-rail .sessions-scroll::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

#win-sidebar.sw-rail #sessions-list::-webkit-scrollbar {
  display: none;
}

#win-sidebar.sw-rail .session-item {
  margin-bottom: 1px;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--rail-text-dim);
  background: transparent;
}

#win-sidebar.sw-rail .sessions-pinned .session-item {
  background: transparent;
}

#win-sidebar.sw-rail .session-item:hover {
  background: var(--rail-bg-hover);
  color: var(--rail-text);
}

#win-sidebar.sw-rail .session-item.active {
  background: var(--rail-chip);
  color: var(--rail-text);
  box-shadow: none;
}

#win-sidebar.sw-rail .session-active-indicator {
  display: none !important;
}

#win-sidebar.sw-rail .sessions-empty {
  padding: 10px 8px;
  color: var(--rail-text-dim);
  font-size: 12.5px;
}

#win-sidebar.sw-rail .sessions-divider {
  flex-shrink: 0;
  height: 1px;
  margin: 8px 0;
  background: var(--rail-border);
}

/* Soft veil at the bottom line (sessions → footer) — full rail width. */
#win-sidebar.sw-rail #sessions-list::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 18px;
  pointer-events: none;
  z-index: 3;
  background: linear-gradient(
    to top,
    var(--rail-bg) 0%,
    color-mix(in srgb, var(--rail-bg) 72%, transparent) 38%,
    color-mix(in srgb, var(--rail-bg) 28%, transparent) 72%,
    transparent 100%
  );
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  -webkit-mask-image: linear-gradient(to top, #000 0%, #000 35%, transparent 100%);
  mask-image: linear-gradient(to top, #000 0%, #000 35%, transparent 100%);
}

/* —— Footer account —— */
#win-sidebar.sw-rail .sw-rail__footer {
  flex-shrink: 0;
  margin-top: auto;
  padding: 10px 6px 2px;
  border-top: 1px solid var(--rail-border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#win-sidebar.sw-rail .sw-rail__account {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 42px;
  padding: 2px 4px;
}

#win-sidebar.sw-rail .sw-rail__account-user {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  flex: 1;
  padding: 0 8px;
  min-height: 40px;
  border-radius: 10px;
  color: var(--rail-icon);
}

#win-sidebar.sw-rail .sw-rail__account-ico {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--rail-icon);
}

#win-sidebar.sw-rail .sw-rail__account-name {
  min-width: 0;
  font-family: var(--rail-font);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--rail-text-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#win-sidebar.sw-rail .sw-rail__account-logout {
  width: 36px;
  height: 36px;
  min-width: 36px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--rail-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background-color 0.18s ease,
    color 0.18s ease;
}

#win-sidebar.sw-rail .sw-rail__account-logout:hover {
  background: var(--rail-bg-hover);
  color: var(--rail-text);
}

#win-sidebar.sw-rail .sw-rail__account-logout:focus-visible {
  outline: 2px solid var(--rail-focus);
  outline-offset: 1px;
}

#win-sidebar.sw-rail .sw-rail__sync {
  margin-top: 2px;
  padding: 0 8px;
  font-size: 11px;
  min-height: 0;
}

/* —— Collapsed icon rail (PC) ——
   Width is driven only by JS (--w-sidebar / inline width).
   Do NOT set width here — !important kills the transition and causes jerk.
   Icon geometry stays identical; text/sessions simply fade and clip. */
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed {
  min-width: var(--rail-collapsed);
}

body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .window-body.sw-rail__body {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

body:not(.is-mobile) #win-sidebar.sw-rail .sw-rail__label,
body:not(.is-mobile) #win-sidebar.sw-rail .sw-rail__section-label,
body:not(.is-mobile) #win-sidebar.sw-rail .sw-rail__account-name,
body:not(.is-mobile) #win-sidebar.sw-rail .sidebar-brand-title {
  transition: opacity var(--rail-fade-dur) linear;
}

body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sidebar-brand-title,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__label,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__badge,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__pill,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__section-label,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__account-name,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__sync,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__account-logout {
  opacity: 0;
  pointer-events: none;
}

body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__sessions,
body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed #sessions-list {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

body:not(.is-mobile) #win-sidebar.sw-rail.window-collapsed .sw-rail__account-logout {
  visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
  #win-sidebar.sw-rail,
  #win-sidebar.sw-rail .sidebar-brand-title,
  #win-sidebar.sw-rail .sw-rail__brand-toggle,
  #win-sidebar.sw-rail .sw-rail__brand-toggle-ico,
  #win-sidebar.sw-rail .sw-rail__label,
  #win-sidebar.sw-rail .sw-rail__section-label,
  #win-sidebar.sw-rail .sw-rail__account-name,
  #win-sidebar.sw-rail .sw-rail__sessions,
  #win-sidebar.sw-rail #sessions-list {
    transition: none !important;
  }

  #win-sidebar.sw-rail .sw-rail__item,
  #win-sidebar.sw-rail .session-item,
  #win-sidebar.sw-rail .sw-ico-motion,
  #win-sidebar.sw-rail .sw-ico-new,
  #win-sidebar.sw-rail .sw-ico-auto__fwd,
  #win-sidebar.sw-rail .sw-ico-auto__back {
    transition: none;
  }

  #win-sidebar.sw-rail #new-chat-btn:hover .sw-ico-new,
  #win-sidebar.sw-rail #new-chat-btn:active .sw-ico-new,
  #win-sidebar.sw-rail #sidebar-automation-btn:hover .sw-ico-auto__fwd,
  #win-sidebar.sw-rail #sidebar-automation-btn:hover .sw-ico-auto__back,
  #win-sidebar.sw-rail #sidebar-settings-btn:hover .sw-ico-gear,
  #win-sidebar.sw-rail.window-collapsed .sw-rail__brand-toggle-ico {
    transform: none;
  }

  #win-sidebar.sw-rail .sw-rail__item.is-spinning .sw-rail__icon {
    animation: none;
  }
}

/* Mobile overlay keeps the rail language but drops PC-only collapse tricks. */
body.is-mobile #win-sidebar.sw-rail {
  border-radius: 0;
  box-shadow: none;
}

body.is-mobile #win-sidebar.sw-rail .sw-rail__brand-toggle {
  display: none;
}