.hidden {
  display: none !important;
}

:root {
  /* Brand Colors */
  --brand-blue: #024468;
  --brand-yellow: #eaaa0a;
  --brand-white: #ffffff;

  /* Theme Variables - Light Mode (Default) */
  --bg-primary: #f9fafb;
  --bg-secondary: #ffffff;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --input-bg: #f9fafb;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  --font-primary: "Poppins", sans-serif;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --input-bg: #1e293b;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s, color 0.3s;
}

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  transition: grid-template-columns 0.3s ease;
}

.layout.sidebar-collapsed {
  grid-template-columns: 80px 1fr;
}

@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .layout.sidebar-collapsed {
    grid-template-columns: 1fr;
  }
}

.mobile-sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.38);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 60;
}

.mobile-sidebar-backdrop.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Sidebar */
.sidebar {
  background: var(--brand-blue);
  color: var(--brand-white);
  padding: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  transition: width 0.3s ease, padding 0.3s ease;
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed {
  padding: 24px 12px;
}

@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    top: 0;
    right: 0;
    left: auto;
    width: min(86vw, 320px);
    max-width: 320px;
    height: 100dvh;
    z-index: 70;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    display: flex;
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.2);
  }

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

  .sidebar.collapsed {
    padding: 24px;
  }

  .sidebar.collapsed .logo-img {
    display: block;
  }

  .sidebar.collapsed .menu-text {
    display: inline;
  }

  .sidebar.collapsed .menu-item {
    justify-content: flex-start;
    padding: 10px 12px;
  }

  .sidebar.collapsed .sidebar-footer .brand-text {
    display: block;
  }

  body.mobile-sidebar-open {
    overflow: hidden;
  }
}

.mobile-drawer-header {
  display: none;
}

@media (max-width: 1024px) {
  .mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
  }

  .mobile-drawer-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.92);
  }
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 32px;
  position: relative;
}

.sidebar.collapsed .brand-text {
  display: none;
}

.brand h1 {
  font-size: 16px;
  margin: 0;
}

.brand span {
  font-size: 12px;
  opacity: 0.85;
}

.logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 4px;
}

.sidebar.collapsed .logo-img {
  display: none;
}

.btn-sidebar-toggle {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  margin-left: auto;
}

.btn-icon.btn-mobile-menu {
  display: none;
}

.btn-mobile-close {
  color: var(--brand-white);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-mobile-close:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.32);
  color: var(--brand-white);
}

.btn-sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.sidebar.collapsed .btn-sidebar-toggle {
  margin-left: 0;
  margin-top: 12px;
  width: 100%;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.menu-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.menu-group-toggle {
  width: 100%;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.74);
  border-radius: 4px;
  padding: 2px 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  text-align: left;
}

.menu-group-toggle:hover {
  color: rgba(255, 255, 255, 0.92);
}

.menu-group-toggle:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.35);
  outline-offset: 2px;
}

.menu-group-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-group-caret {
  width: 14px;
  height: 14px;
  opacity: 0.74;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-group.is-collapsed .menu-group-caret {
  transform: rotate(-90deg);
  opacity: 0.56;
}

.menu-group-panel {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 0;
}

.menu-group-empty {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 0 2px;
}

.menu-item {
  position: relative;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: 9px 10px 9px 14px;
  border-radius: 8px;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background-color 0.16s ease, color 0.16s ease;
  font-size: 14px;
  white-space: nowrap;
}

.menu-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.9;
}

.menu-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 999px;
  background: transparent;
  transition: background-color 0.16s ease;
}

.sidebar.collapsed .menu-text {
  display: none;
}

.sidebar.collapsed .menu-group {
  display: none;
}

.sidebar.collapsed .menu-group[data-has-active="true"] {
  display: flex;
}

.sidebar.collapsed .menu-group-toggle {
  display: none;
}

.sidebar.collapsed .menu-group-panel {
  padding-left: 0;
  gap: 0;
  align-items: center;
}

.sidebar.collapsed .menu-group-empty {
  display: none;
}

.sidebar.collapsed .menu-item {
  display: none;
}

.sidebar.collapsed .menu-item::before {
  display: none;
}

.sidebar.collapsed .menu-item.active {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
}

.sidebar.collapsed .menu-item.active .menu-icon {
  width: 18px;
  height: 18px;
  opacity: 1;
}

.menu-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--brand-white);
}

.menu-item.active {
  background: rgba(255, 255, 255, 0.14);
  color: var(--brand-white);
  font-weight: 600;
}

.menu-item.active::before {
  background: var(--brand-yellow);
}

.menu-group.is-active-group > .menu-group-toggle {
  color: var(--brand-white);
}

/* Sidebar Footer */
.sidebar-footer {
  margin-top: auto;
  padding: 16px 12px 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.05);
  display: flex;
  justify-content: center;
  text-align: center;
}

.sidebar.collapsed .sidebar-footer {
  display: flex;
  justify-content: center;
  padding: 12px 0;
}

.sidebar.collapsed .sidebar-footer .brand-text {
  display: none;
}

.m-0 {
  margin: 0;
}

/* Main Content */
.main {
  padding: 24px 32px;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
}

.content {
  width: 100%;
  min-width: 0;
}

@media (max-width: 768px) {
  .main {
    padding: 16px;
  }
}

@media (max-width: 1024px) {
  .btn-sidebar-toggle {
    display: none;
  }

  .btn-icon.btn-mobile-menu {
    display: inline-flex;
  }
}

/* Components */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.topbar h2 {
  margin: 0;
  font-size: 24px;
  color: var(--text-primary);
}

.btn-icon {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--brand-yellow);
  color: var(--brand-blue);
  border-color: var(--brand-yellow);
}

/* Common Utilities */
.text-muted {
  color: var(--text-secondary);
}

.text-sm {
  font-size: 12px;
}

.text-xs {
  font-size: 11px;
}

.font-bold {
  font-weight: 700;
}

.card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 24px;
}

/* Responsive Grid System */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .topbar {
    gap: 10px;
  }

  .topbar h2 {
    font-size: 22px;
  }

  .sidebar.mobile-open.collapsed .logo-img {
    display: block;
  }

  .sidebar.mobile-open.collapsed .menu-text {
    display: inline;
  }

  .sidebar.mobile-open.collapsed .menu-group {
    display: flex;
  }

  .sidebar.mobile-open.collapsed .menu-group-toggle {
    display: inline-flex;
  }

  .sidebar.mobile-open.collapsed .menu-group-panel {
    align-items: stretch;
    gap: 2px;
  }

  .sidebar.mobile-open.collapsed .menu-item {
    display: flex;
    justify-content: flex-start;
    padding: 10px 12px;
  }

  .sidebar.mobile-open.collapsed .menu-item::before {
    display: block;
  }

  .sidebar.mobile-open.collapsed .sidebar-footer .brand-text {
    display: block;
  }
}