/* ═══════════════════════════════════════════════════════
   MY EXAM COMPANION — App Shell Design System v9
   Light Theme, Chess.com-style layout
═══════════════════════════════════════════════════════ */

/* ── Font Import ────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ── Global tap reset ───────────────────────────────── */
* {
  -webkit-tap-highlight-color: transparent;
}

/* ═══════════════════════════════════════════════════════
   LAYOUT — sidebar strip + content area
═══════════════════════════════════════════════════════ */

/* Content wrapper shifts right to make room for sidebar */
.main-wrapper,
.app-container {
  margin-left: 72px;
  transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body.sidebar-closed .main-wrapper,
body.sidebar-closed .app-container {
  margin-left: 0;
}

/* On mobile, content always full width; sidebar overlays */
@media (max-width: 600px) {

  .main-wrapper,
  .app-container {
    margin-left: 0 !important;
  }
}

/* ═══════════════════════════════════════════════════════
   SIDEBAR OVERLAY (mobile backdrop)
═══════════════════════════════════════════════════════ */
.mec-sb-overlay {
  display: none;
  position: fixed;
  /* Start BELOW topbar so it never covers the topbar */
  top: 56px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 199;
  background: rgba(0, 0, 0, 0.38);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.mec-sb-overlay.active {
  display: block;
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════
   SIDEBAR STRIP — 72px icon column
═══════════════════════════════════════════════════════ */
.mec-sidebar {
  position: fixed;
  left: 0;
  top: 56px;
  /* sits directly below topbar */
  bottom: 0;
  width: 72px;
  background: #ffffff;
  border-right: 1.5px solid #ededed;
  box-shadow: 1px 0 10px rgba(0, 0, 0, 0.04);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 8px;
  overflow: visible;
  /* Transition for collapse on desktop */
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: 'Outfit', 'Inter', sans-serif;
}

/* Desktop collapse */
body.sidebar-closed .mec-sidebar {
  transform: translateX(-100%);
}

/* Mobile: hidden by default, slides in */
@media (max-width: 600px) {
  .mec-sidebar {
    transform: translateX(-100%);
    z-index: 2000;
  }

  .mec-sb-overlay {
    z-index: 1999;
  }

  body.sidebar-mobile-open .mec-sidebar {
    transform: translateX(0);
  }
}

/* Nav column */
.mec-sidebar__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  width: 100%;
  flex: 1;
  overflow: visible;
}

.mec-sidebar__bottom {
  border-top: 1px solid #f0f0f0;
  padding-top: 6px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}

/* Separator */
.mec-sb-sep {
  width: 36px;
  height: 1px;
  background: #f0f0f0;
  margin: 4px 0;
  flex-shrink: 0;
}

/* ── Sidebar Item ─────────────────────────────────── */
.mec-sb-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 60px;
  min-height: 58px;
  border-radius: 12px;
  cursor: pointer;
  color: #9ca3af;
  text-decoration: none;
  user-select: none;
  -webkit-user-select: none;
  transition: background 0.13s, color 0.13s;
  position: relative;
  padding: 5px 2px;
  flex-shrink: 0;
}

.mec-sb-item:hover {
  background: #f5f5f5;
  color: #374151;
}

.mec-sb-item.active {
  background: #fff0ef;
  color: #2563eb;
}

/* Left active indicator — uses box-shadow so it never clips */
.mec-sb-item.active {
  box-shadow: -3px 0 0 0 #2563eb;
}

/* Icon container */
.mec-sb-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  transition: background 0.13s;
  flex-shrink: 0;
  color: inherit;
  /* SVG stroke="currentColor" picks this up */
}

.mec-sb-icon svg {
  display: block;
  pointer-events: none;
  /* prevent SVG paths from blocking clicks */
  flex-shrink: 0;
}

.mec-sb-item:hover .mec-sb-icon {
  background: rgba(0, 0, 0, 0.04);
}

.mec-sb-item.active .mec-sb-icon {
  background: rgba(183, 12, 1, 0.09);
}

/* Label */
.mec-sb-label {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-align: center;
  color: inherit;
  white-space: nowrap;
  line-height: 1;
}

/* NEW badge */
.mec-sb-new {
  position: absolute;
  top: 3px;
  right: 3px;
  font-size: 7px;
  font-weight: 800;
  padding: 1px 3px;
  border-radius: 3px;
  background: #2563eb;
  color: #fff;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Accent (AI Tutor) */
.mec-sb-item--accent {
  color: #0ea5e9;
}

.mec-sb-item--accent:hover {
  background: #f0f9ff;
  color: #0284c7;
}

.mec-sb-item--accent.active {
  background: #e0f2fe;
  color: #0284c7;
}

/* Dimmed / coming soon */
.mec-sb-item--dim {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.mec-sb-item--premium {
  color: #d97706;
}

.mec-sb-item--premium:hover {
  background: #fffbeb;
  color: #b45309;
}

.mec-sb-item--premium.active {
  background: #fef3c7;
  color: #b45309;
}

/* ═══════════════════════════════════════════════════════
   FLYOUT PANEL — pops to the right of sidebar
═══════════════════════════════════════════════════════ */
.mec-flyout {
  position: fixed;
  z-index: 2500;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.13), 0 2px 8px rgba(0, 0, 0, 0.06);
  width: 258px;
  max-height: calc(100vh - 30px);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-family: 'Outfit', 'Inter', sans-serif;

  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px) scale(0.97);
  transform-origin: left center;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0s linear 0.15s;
  pointer-events: none;
}

.mec-flyout::-webkit-scrollbar {
  display: none;
}

.mec-flyout.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0s;
  pointer-events: auto;
}

/* Flyout section title */
.mec-flyout-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #c0c0c0;
  padding: 6px 12px 2px;
}

/* Flyout divider */
.mec-flyout-div {
  height: 1px;
  background: #f2f2f2;
  margin: 3px 8px;
}

/* Flyout link row */
.mec-flyout-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 11px;
  font-size: 13.5px;
  font-weight: 500;
  color: #1f2937;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.11s;
  user-select: none;
  -webkit-user-select: none;
}

.mec-flyout-item:hover {
  background: #f6f6f6;
}

.mec-flyout-item--hl {
  color: #2563eb;
  background: #fff3f2;
  font-weight: 600;
}

.mec-flyout-item--hl:hover {
  background: #ffe8e6;
}

.mec-flyout-item--dim {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.mec-flyout-icon {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: inherit;
  /* SVG stroke="currentColor" picks this up */
}

.mec-flyout-icon svg {
  display: block;
  pointer-events: none;
  flex-shrink: 0;
}

.mec-flyout-soon {
  margin-left: auto;
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 20px;
  background: #f3f4f6;
  color: #9ca3af;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (max-width: 600px) {
  .mec-flyout {
    width: calc(100vw - 86px);
    max-width: 240px;
  }
}