/* AEG UI — Base Layout */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg-app);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.5;
  overflow: hidden;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

button {
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  border: none;
  background: none;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: var(--font-size-base);
  background: var(--bg-surface-2);
  color: var(--color-text);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  outline: none;
  transition: border-color var(--transition-fast);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--color-accent);
}

/* ── App Shell ──────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-columns: var(--sidebar-width) 1fr var(--detail-width);
  grid-template-areas:
    "header header header"
    "sidebar main detail";
  height: 100vh;
  transition: grid-template-columns var(--transition-base);
}

body.sidebar-collapsed #app {
  grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--detail-width);
}

body.detail-closed #app {
  grid-template-columns: var(--sidebar-width) 1fr 0;
}

body.sidebar-collapsed.detail-closed #app {
  grid-template-columns: var(--sidebar-collapsed-width) 1fr 0;
}

/* ── Header ─────────────────────────────────────────────── */
#app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  z-index: 50;
}

#header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: -0.5px;
  color: var(--color-text);
  text-decoration: none;
}
#header-logo img { height: 24px; width: auto; }
#header-brand { height: 22px; width: auto; opacity: 0.92; flex-shrink: 0; }

#header-search {
  flex: 1;
  max-width: 380px;
  padding: var(--space-2) var(--space-3);
  background: var(--bg-surface-3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

#plane-toggle {
  display: flex;
  background: var(--bg-surface-3);
  border-radius: var(--radius-md);
  padding: 2px;
  gap: 2px;
  flex-shrink: 0;
}
.plane-btn {
  padding: 4px 12px;
  border-radius: calc(var(--radius-md) - 2px);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-dim);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.plane-btn.active {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

#header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

#notif-badge {
  position: relative;
  cursor: pointer;
  font-size: var(--font-size-lg);
}
#notif-badge-count {
  position: absolute;
  top: -4px; right: -6px;
  background: var(--color-warning);
  color: #000;
  font-size: 10px;
  font-weight: 700;
  border-radius: 9999px;
  padding: 0 4px;
  min-width: 16px;
  text-align: center;
  display: none;
}
#notif-badge-count.visible { display: block; }

#token-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--token-expired);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: background var(--transition-base);
}
#token-dot.ok   { background: var(--token-ok); }
#token-dot.warn { background: var(--token-warn); }
#token-dot-tooltip {
  display: none;
  position: absolute;
  top: 16px; right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  z-index: 100;
}
#token-dot:hover #token-dot-tooltip { display: block; }

#user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 700;
  font-size: var(--font-size-sm);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
#user-menu {
  display: none;
  position: absolute;
  top: 40px; right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  min-width: 160px;
  z-index: 200;
  overflow: hidden;
}
#user-menu.open { display: block; }
.user-menu-item {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text);
  cursor: pointer;
  font-size: var(--font-size-sm);
}
.user-menu-item:hover { background: var(--bg-surface-2); }

/* ── Sidebar ─────────────────────────────────────────────── */
#app-sidebar {
  grid-area: sidebar;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width var(--transition-base);
}

.sidebar-nav { flex: 1; overflow-y: auto; padding: var(--space-2) 0; }
.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  border-radius: 0;
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
  text-decoration: none;
}
.sidebar-item:hover { background: var(--bg-surface-2); color: var(--color-text); }
.sidebar-item.active {
  background: rgba(255,255,255,0.12);
  color: var(--color-accent);
  border-left: 3px solid var(--color-accent);
}
.sidebar-item .item-icon { width: 18px; font-size: 16px; flex-shrink: 0; }
.sidebar-item .item-label { flex: 1; }
.sidebar-item .item-badge {
  background: var(--color-warning);
  color: #000;
  font-size: 10px;
  font-weight: 700;
  border-radius: 9999px;
  padding: 1px 5px;
  min-width: 18px;
  text-align: center;
}

body.sidebar-collapsed .sidebar-item .item-label,
body.sidebar-collapsed .sidebar-item .item-badge { display: none; }

.sidebar-footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.lang-btn {
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-dim);
  border: 1px solid var(--border-color);
  transition: background var(--transition-fast);
}
.lang-btn.active { background: var(--color-accent); color: var(--color-on-accent); border-color: var(--color-accent); }
.help-link {
  margin-left: auto;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: var(--color-text-dim);
}

/* ── Main content ─────────────────────────────────────────── */
#app-main {
  grid-area: main;
  overflow-y: auto;
  padding: var(--space-4);
  position: relative;
}

/* ── Detail panel ─────────────────────────────────────────── */
#app-detail {
  grid-area: detail;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-color);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-base);
}
body.detail-closed #app-detail { overflow: hidden; }

/* ── Responsive: mobile sidebar drawer ───────────────────── */
@media (max-width: 1023px) {
  #app {
    grid-template-columns: 0 1fr 0;
  }
  body.detail-closed #app { grid-template-columns: 0 1fr 0; }

  #app-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    height: calc(100vh - var(--header-height));
    width: var(--sidebar-width);
    z-index: var(--z-sidebar-drawer);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }
  #app-sidebar.drawer-open { transform: translateX(0); }

  #sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--header-height);
    background: var(--bg-overlay);
    z-index: calc(var(--z-sidebar-drawer) - 1);
  }
  #sidebar-overlay.visible { display: block; }

  #hamburger { display: flex; }

  #app-detail {
    position: fixed;
    top: var(--header-height);
    right: 0;
    height: calc(100vh - var(--header-height));
    width: 100vw;
    z-index: var(--z-detail);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
  }
  #app-detail.panel-open { transform: translateX(0); }
}

@media (min-width: 1024px) {
  #hamburger { display: none; }
  #sidebar-overlay { display: none !important; }
}

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  color: var(--color-muted);
  text-align: center;
}
.empty-state .empty-icon { font-size: 48px; }
.empty-state .empty-msg { font-size: var(--font-size-md); }

/* ── Loading spinner ─────────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--bg-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), opacity var(--transition-fast);
  border: 1px solid transparent;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: var(--color-on-accent); }
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-success { background: var(--color-success); color: #000; }
.btn-success:hover { opacity: 0.85; }
.btn-danger  { background: var(--color-error); color: #fff; }
.btn-danger:hover  { opacity: 0.85; }
.btn-ghost   { background: transparent; border-color: var(--border-color); color: var(--color-text); }
.btn-ghost:hover { background: var(--bg-surface-2); }
.btn-sm { padding: 3px 10px; font-size: var(--font-size-xs); }
.btn-lg { padding: 10px 20px; font-size: var(--font-size-md); }

/* ── Modals ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  min-width: 360px;
  max-width: 560px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.modal-title { font-size: var(--font-size-lg); font-weight: 700; }
.modal-close {
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-muted);
  cursor: pointer;
}
.modal-close:hover { background: var(--bg-surface-2); color: var(--color-text); }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

/* ── Toasts (handled by <toast-container> web component) ─── */
toast-container {
  position: fixed;
  bottom: 80px;
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  pointer-events: all;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  animation: toast-in 200ms ease;
  cursor: pointer;
}
@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.toast.info    { border-left: 3px solid var(--color-info); }
.toast.success { border-left: 3px solid var(--color-success); }
.toast.warning { border-left: 3px solid var(--color-warning); }
.toast.error   { border-left: 3px solid var(--color-error); }

/* ── FAB ──────────────────────────────────────────────────── */
#fab-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-fab);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.fab-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.fab-btn:hover { background: var(--bg-surface-2); transform: scale(1.05); }

/* ── Pulse animation for active states ───────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}
.pulse { animation: pulse 1.5s ease-in-out infinite; }

/* ── Shake animation for error feedback ──────────────────── */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60%  { transform: translateX(-6px); }
  40%, 80%  { transform: translateX(6px); }
}
.shake { animation: shake 300ms ease; }

/* ── Sidebar collapse toggle + resize ─────────────────────── */
#app-sidebar { position: relative; }

#sidebar-resize {
  position: absolute;
  top: 0; right: 0;
  width: 5px; height: 100%;
  cursor: col-resize;
  z-index: 10;
  background: transparent;
  transition: background var(--transition-fast);
}
#sidebar-resize:hover,
#sidebar-resize.dragging { background: var(--color-accent); opacity: 0.4; }
body.sidebar-collapsed #sidebar-resize { display: none; }

#sidebar-toggle {
  width: 22px; height: 22px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
  color: var(--color-text-dim);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
  margin-left: auto;
  border: 1px solid var(--border-color);
  line-height: 1;
}
#sidebar-toggle:hover { background: var(--bg-surface-2); color: var(--color-text); }
body.sidebar-collapsed #sidebar-toggle { margin-left: 0; }
body.sidebar-collapsed .sidebar-footer {
  justify-content: center;
  padding: var(--space-2) 0;
}
body.sidebar-collapsed .sidebar-footer .lang-btn,
body.sidebar-collapsed .sidebar-footer .help-link { display: none; }

/* detail panel resize */
#detail-resize {
  position: absolute;
  top: 0; left: 0;
  width: 5px; height: 100%;
  cursor: col-resize;
  z-index: 10;
  background: transparent;
  transition: background var(--transition-fast);
}
#detail-resize:hover,
#detail-resize.dragging { background: var(--color-accent); opacity: 0.4; }
body.detail-closed #detail-resize { display: none; }
#app-detail { position: relative; }