/* ============================================================
   CLICKSOFT — MODERN UI · COMPONENTS  (Window-inspired)
   Namespaced .mui-* — coexists with AdminLTE/Bootstrap
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

.mui-app {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--c-text);
  background: var(--c-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.mui-app *,
.mui-app *::before,
.mui-app *::after { box-sizing: border-box; }

/* ============================================================
   LAYOUT  (sidebar + header + content)
   ============================================================ */
.mui-shell {
  display: grid;
  grid-template-columns: var(--layout-sidebar-w) 1fr;
  grid-template-rows: var(--layout-header-h) 1fr;
  grid-template-areas:
    "sidebar header"
    "sidebar main";
  min-height: 100vh;
  transition: grid-template-columns var(--dur-base) var(--ease-out);
}

.mui-shell[data-collapsed="true"] {
  grid-template-columns: var(--layout-sidebar-w-collapsed) 1fr;
}

.mui-sidebar { grid-area: sidebar; }
.mui-header  { grid-area: header;  }
.mui-main    { grid-area: main;    }

/* ============================================================
   SIDEBAR — ALWAYS DARK (Window signature)
   ============================================================ */
.mui-sidebar {
  background: var(--c-sidebar-bg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  z-index: var(--z-sticky);
  transition: width var(--dur-base) var(--ease-out);
}

.mui-sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--layout-header-h);
  padding: 0 var(--sp-5);
  font-weight: var(--fw-bold);
  font-size: 1.25rem;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

/* Window-style angular "W" logo */
.mui-sidebar__brand-logo {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  display: grid;
  place-items: center;
  color: #ffffff;
}

.mui-sidebar__brand-text {
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--dur-fast) var(--ease-out);
}

[data-collapsed="true"] .mui-sidebar__brand-text,
[data-collapsed="true"] .mui-sidebar__section-title,
[data-collapsed="true"] .mui-nav__label,
[data-collapsed="true"] .mui-nav__caret,
[data-collapsed="true"] .mui-nav__badge,
[data-collapsed="true"] .mui-sidebar__support {
  opacity: 0;
  pointer-events: none;
}

.mui-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--sp-2) var(--sp-3);
  scrollbar-width: thin;
  scrollbar-color: #2a3142 transparent;
}

.mui-sidebar__nav::-webkit-scrollbar { width: 4px; }
.mui-sidebar__nav::-webkit-scrollbar-thumb {
  background: #2a3142;
  border-radius: var(--r-pill);
}

.mui-sidebar__section-title {
  padding: var(--sp-5) var(--sp-3) var(--sp-2);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-sidebar-section-title);
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--dur-fast) var(--ease-out);
}

/* nav item — Window style */
.mui-nav__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 10px var(--sp-3);
  margin: 1px 0;
  border-radius: var(--r-md);
  color: var(--c-sidebar-text);
  text-decoration: none;
  font-weight: var(--fw-medium);
  font-size: var(--fs-sm);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background var(--dur-fast) var(--ease-out),
    color      var(--dur-fast) var(--ease-out);
}

.mui-nav__item:hover {
  background: var(--c-sidebar-bg-hover);
  color: var(--c-sidebar-text-strong);
}

.mui-nav__item--active {
  background: var(--c-sidebar-active-bg);
  color: var(--c-sidebar-active-text);
}

.mui-nav__item--active:hover {
  background: var(--c-brand-600);
  color: #ffffff;
}

.mui-nav__icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  display: grid;
  place-items: center;
  color: currentColor;
  opacity: 0.9;
}

.mui-nav__label  { flex: 1; transition: opacity var(--dur-fast) var(--ease-out); }
.mui-nav__caret  { transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast); opacity: 0.6; }
.mui-nav__caret--open { transform: rotate(90deg); }

.mui-nav__badge {
  margin-left: auto;
  font-size: 10px;
  font-weight: var(--fw-bold);
  background: var(--c-brand-500);
  color: #fff;
  padding: 2px 7px;
  border-radius: var(--r-pill);
}

/* nested submenu — Window style with bullet points */
.mui-nav__sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-base) var(--ease-out);
}
.mui-nav__sub--open { grid-template-rows: 1fr; }
.mui-nav__sub > div { overflow: hidden; padding: 4px 0; }

.mui-nav__sub .mui-nav__item {
  padding-left: 38px;
  font-size: 13px;
  position: relative;
  background: transparent;
}
.mui-nav__sub .mui-nav__item::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--c-sidebar-text-muted);
  transition: background var(--dur-fast);
}
.mui-nav__sub .mui-nav__item:hover {
  background: transparent;
  color: var(--c-sidebar-text-strong);
}
.mui-nav__sub .mui-nav__item:hover::before { background: var(--c-sidebar-text-strong); }

.mui-nav__sub .mui-nav__item--active {
  background: transparent;
  color: var(--c-brand-400);
  font-weight: var(--fw-semibold);
}
.mui-nav__sub .mui-nav__item--active::before { background: var(--c-brand-500); }

/* Support center card (Window signature in sidebar footer) */
.mui-sidebar__support {
  margin: var(--sp-3) var(--sp-3) var(--sp-4);
  padding: var(--sp-4) var(--sp-3);
  background: var(--c-brand-500);
  border-radius: var(--r-md);
  text-align: center;
  color: #ffffff;
  flex-shrink: 0;
  transition: opacity var(--dur-fast);
}
.mui-sidebar__support-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--sp-2);
  display: grid;
  place-items: center;
  color: #ffffff;
}
.mui-sidebar__support-title {
  font-size: 11px;
  font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 var(--sp-2);
}
.mui-sidebar__support-text {
  font-size: 12px;
  margin: 0 0 var(--sp-3);
  opacity: 0.95;
  line-height: 1.4;
}
.mui-sidebar__support-btn {
  display: block;
  width: 100%;
  padding: 8px;
  background: rgba(255,255,255,0.18);
  color: #ffffff;
  border: none;
  border-radius: var(--r-sm);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast);
}
.mui-sidebar__support-btn:hover { background: rgba(255,255,255,0.28); }

/* ============================================================
   HEADER — Window style with horizontal nav
   ============================================================ */
.mui-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-5);
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: calc(var(--z-sticky) - 1);
}

.mui-icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  background: transparent;
  border: none;
  color: var(--c-text-soft);
  cursor: pointer;
  position: relative;
  transition:
    background var(--dur-fast) var(--ease-out),
    color      var(--dur-fast) var(--ease-out);
}

.mui-icon-btn:hover {
  background: var(--c-surface-2);
  color: var(--c-text);
}

.mui-icon-btn .mui-dot {
  position: absolute;
  top: 6px; right: 8px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--c-brand-500);
  color: #fff;
  font-size: 9px;
  font-weight: var(--fw-bold);
  display: grid;
  place-items: center;
  border: 2px solid var(--c-bg);
}

/* horizontal nav (Home • Apps • Pages • Auths) — Window style */
.mui-topnav {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: var(--sp-3);
}
.mui-topnav__item {
  position: relative;
  padding: 8px 14px;
  color: var(--c-text-soft);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--r-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.mui-topnav__item:hover { color: var(--c-text); background: var(--c-surface-2); }
.mui-topnav__item svg { display: block; opacity: .8; }
.mui-topnav__item--active {
  color: var(--c-text);
  background: var(--c-surface-2);
}
.mui-topnav__item--active svg { opacity: 1; color: var(--c-brand-500); }
.mui-topnav__sep {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--c-brand-500);
  display: inline-block;
  flex: 0 0 4px;
}

/* Inline icon + label inside topnav items */
.mui-topnav__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Flag button (header language switcher) */
.mui-flag {
  width: 36px;
  height: 36px;
  padding: 0;
  overflow: hidden;
}
.mui-flag svg {
  width: 22px;
  height: 16px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px var(--c-border);
}

.mui-header__spacer { flex: 1; }

/* avatar with online dot */
.mui-avatar {
  width: 38px;
  height: 38px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--c-brand-400), var(--c-brand-700));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  flex: 0 0 38px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.mui-avatar img { width: 100%; height: 100%; object-fit: cover; }
.mui-avatar--online::after {
  content: "";
  position: absolute;
  bottom: 0; right: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--c-success);
  border: 2px solid var(--c-bg);
}

/* search */
.mui-search {
  position: relative;
  width: 280px;
}
.mui-search input {
  width: 100%;
  height: 38px;
  padding: 0 var(--sp-3) 0 calc(var(--sp-7) + 2px);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: var(--fs-sm);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.mui-search input::placeholder { color: var(--c-text-muted); }
.mui-search input:focus {
  outline: none;
  border-color: var(--c-brand-500);
  box-shadow: var(--sh-focus);
}
.mui-search__icon {
  position: absolute;
  left: var(--sp-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-text-muted);
  pointer-events: none;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.mui-main {
  padding: var(--sp-6);
  background: var(--c-bg);
  animation: mui-fade-in var(--dur-slow) var(--ease-out);
}

.mui-page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}
.mui-page-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  margin: 0 0 var(--sp-1);
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.mui-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
}
.mui-breadcrumb a { color: var(--c-text-muted); text-decoration: none; }
.mui-breadcrumb a:hover { color: var(--c-text); }
.mui-breadcrumb__sep { color: var(--c-text-muted); }
.mui-breadcrumb__current { color: var(--c-text-soft); }

/* ============================================================
   CARDS — Window style: minimal border, no shadow
   ============================================================ */
.mui-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  transition: border-color var(--dur-base) var(--ease-out);
}

.mui-card--hover:hover { border-color: var(--c-border-strong); }

.mui-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--sp-4);
}
.mui-card__title {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  margin: 0;
  color: var(--c-text);
}

/* stat card — Window eCommerce style */
.mui-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.mui-stat__main { flex: 1; min-width: 0; }
.mui-stat__label {
  font-size: var(--fs-xs);
  color: var(--c-text-soft);
  margin: 0 0 6px;
  font-weight: var(--fw-medium);
}
.mui-stat__value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
.mui-stat__delta {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  margin-top: var(--sp-3);
  padding: 3px 8px;
  border-radius: var(--r-sm);
  background: var(--c-surface-2);
  color: var(--c-text-soft);
}
.mui-stat__delta--up   { background: var(--c-success-soft); color: #047857; }
.mui-stat__delta--down { background: var(--c-danger-soft);  color: #b91c1c; }
:root[data-theme="dark"] .mui-stat__delta--up   { color: #34d399; }
:root[data-theme="dark"] .mui-stat__delta--down { color: #f87171; }

/* big icon for stat */
.mui-stat__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--r-md);
  display: grid;
  place-items: center;
  background: var(--c-brand-50);
  color: var(--c-brand-600);
  flex: 0 0 52px;
}
:root[data-theme="dark"] .mui-stat__icon { background: rgba(59, 130, 246, 0.15); color: var(--c-brand-400); }

.mui-stat--success .mui-stat__icon { background: var(--c-success-soft); color: var(--c-success); }
.mui-stat--warning .mui-stat__icon { background: var(--c-warning-soft); color: var(--c-warning); }
.mui-stat--danger  .mui-stat__icon { background: var(--c-danger-soft);  color: var(--c-danger);  }
.mui-stat--info    .mui-stat__icon { background: var(--c-info-soft);    color: var(--c-info);    }

/* progress bar inside stat (Window CRM style) */
.mui-progress {
  height: 6px;
  background: var(--c-surface-2);
  border-radius: var(--r-pill);
  overflow: hidden;
  margin-top: var(--sp-3);
}
.mui-progress__bar {
  height: 100%;
  background: var(--c-brand-500);
  border-radius: var(--r-pill);
  transition: width var(--dur-slower) var(--ease-out);
}
.mui-progress__bar--success { background: var(--c-success); }
.mui-progress__bar--warning { background: var(--c-warning); }
.mui-progress__bar--danger  { background: var(--c-danger);  }

/* grid helper */
.mui-grid { display: grid; gap: var(--sp-5); }
.mui-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.mui-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.mui-grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

/* ============================================================
   BUTTONS — Window style
   ============================================================ */
.mui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  height: 38px;
  padding: 0 var(--sp-4);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  font-family: inherit;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
  transition:
    background var(--dur-fast) var(--ease-out),
    color      var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.mui-btn:focus-visible { outline: none; box-shadow: var(--sh-focus); }

.mui-btn--primary {
  background: var(--c-brand-500);
  color: #fff;
}
.mui-btn--primary:hover { background: var(--c-brand-600); }

.mui-btn--ghost {
  background: var(--c-surface);
  color: var(--c-text);
  border-color: var(--c-border-strong);
}
.mui-btn--ghost:hover { background: var(--c-surface-2); }

.mui-btn--danger { background: var(--c-danger); color: #fff; }
.mui-btn--danger:hover { background: #dc2626; }

.mui-btn--success { background: var(--c-success); color: #fff; }
.mui-btn--success:hover { background: #059669; }

.mui-btn--block { width: 100%; }
.mui-btn--sm { height: 30px; padding: 0 var(--sp-3); font-size: var(--fs-xs); }
.mui-btn--lg { height: 44px; padding: 0 var(--sp-5); font-size: var(--fs-md); }

/* ============================================================
   FORMS — Window style
   ============================================================ */
.mui-field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.mui-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-text);
}

.mui-input,
.mui-select,
.mui-textarea {
  width: 100%;
  font: inherit;
  font-size: var(--fs-sm);
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.mui-input::placeholder, .mui-textarea::placeholder { color: var(--c-text-muted); }

.mui-input:focus,
.mui-select:focus,
.mui-textarea:focus {
  outline: none;
  border-color: var(--c-brand-500);
  box-shadow: var(--sh-focus);
}

.mui-input--with-icon {
  padding-left: 38px;
}
.mui-input-wrap { position: relative; }
.mui-input-wrap__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-text-muted);
  pointer-events: none;
}

/* ============================================================
   BADGES — Window style
   ============================================================ */
.mui-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  background: var(--c-surface-2);
  color: var(--c-text-soft);
}
.mui-badge--success { background: var(--c-success-soft); color: #047857; }
.mui-badge--warning { background: var(--c-warning-soft); color: #b45309; }
.mui-badge--danger  { background: var(--c-danger-soft);  color: #b91c1c; }
.mui-badge--info    { background: var(--c-info-soft);    color: #0e7490; }

:root[data-theme="dark"] .mui-badge--success { color: #34d399; }
:root[data-theme="dark"] .mui-badge--warning { color: #fbbf24; }
:root[data-theme="dark"] .mui-badge--danger  { color: #f87171; }
:root[data-theme="dark"] .mui-badge--info    { color: #22d3ee; }

/* ============================================================
   TABLES — Window style
   ============================================================ */
.mui-table-wrap {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.mui-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.mui-table thead th {
  text-align: left;
  font-weight: var(--fw-semibold);
  color: var(--c-text-soft);
  background: transparent;
  padding: 14px 20px;
  border-bottom: 1px solid var(--c-border);
  font-size: var(--fs-sm);
}
.mui-table tbody td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text);
  vertical-align: middle;
}
.mui-table tbody tr { transition: background var(--dur-fast); }
.mui-table tbody tr:hover { background: var(--c-surface-2); }
.mui-table tbody tr:last-child td { border-bottom: none; }

/* user cell with avatar */
.mui-user-cell {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.mui-user-cell__avatar {
  width: 36px; height: 36px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--c-brand-400), var(--c-brand-600));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  flex: 0 0 36px;
  overflow: hidden;
}
.mui-user-cell__name { font-weight: var(--fw-semibold); color: var(--c-text); margin: 0; font-size: var(--fs-sm); }
.mui-user-cell__sub  { color: var(--c-text-muted); font-size: var(--fs-xs); margin: 0; }

/* Best selling product cell */
.mui-product-cell {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.mui-product-cell__img {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  background: var(--c-surface-2);
  display: grid;
  place-items: center;
  flex: 0 0 44px;
}
.mui-product-cell__name { font-weight: var(--fw-semibold); color: var(--c-text); margin: 0; font-size: var(--fs-sm); }
.mui-product-cell__code { color: var(--c-text-muted); font-size: var(--fs-xs); margin: 0; }

/* star rating */
.mui-stars { color: #f59e0b; font-size: 12px; letter-spacing: 1px; }

/* ============================================================
   THEME TOGGLE — single icon (Window style)
   ============================================================ */
.mui-theme-toggle {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  background: transparent;
  border: none;
  color: var(--c-text-soft);
  cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.mui-theme-toggle:hover { background: var(--c-surface-2); color: var(--c-text); }
.mui-theme-toggle .icon-sun { display: none; }
.mui-theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .mui-theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .mui-theme-toggle .icon-moon { display: none; }

/* ============================================================
   TOAST NOTIFICATIONS — Window-aligned
   ============================================================ */
.mui-toast-host {
  position: fixed;
  top: var(--sp-5);
  right: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  z-index: var(--z-toast);
  pointer-events: none;
}
.mui-toast {
  pointer-events: auto;
  min-width: 320px;
  max-width: 400px;
  background: var(--c-surface);
  color: var(--c-text);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-md);
  box-shadow: var(--sh-lg);
  padding: var(--sp-3) var(--sp-4);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  transform: translateX(120%);
  opacity: 0;
  transition: transform var(--dur-slow) var(--ease-spring), opacity var(--dur-base);
}
.mui-toast.is-open { transform: translateX(0); opacity: 1; }
.mui-toast.is-leaving { transform: translateX(120%); opacity: 0; }

.mui-toast--success { border-left: 3px solid var(--c-success); }
.mui-toast--warning { border-left: 3px solid var(--c-warning); }
.mui-toast--danger  { border-left: 3px solid var(--c-danger);  }
.mui-toast--info    { border-left: 3px solid var(--c-brand-500); }

.mui-toast__icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--c-brand-50);
  color: var(--c-brand-600);
  flex: 0 0 22px;
}
.mui-toast--success .mui-toast__icon { background: var(--c-success-soft); color: var(--c-success); }
.mui-toast--warning .mui-toast__icon { background: var(--c-warning-soft); color: var(--c-warning); }
.mui-toast--danger  .mui-toast__icon { background: var(--c-danger-soft);  color: var(--c-danger);  }

.mui-toast__body { flex: 1; min-width: 0; }
.mui-toast__title { font-weight: var(--fw-semibold); font-size: var(--fs-sm); margin: 0 0 2px; }
.mui-toast__desc  { font-size: var(--fs-xs); color: var(--c-text-soft); margin: 0; }
.mui-toast__close {
  background: none; border: none; cursor: pointer;
  color: var(--c-text-muted);
  border-radius: var(--r-xs);
  padding: 2px;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.mui-toast__close:hover { background: var(--c-surface-2); color: var(--c-text); }

/* ============================================================
   ANIMATIONS / UTILITIES
   ============================================================ */
@keyframes mui-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes mui-slide-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes mui-shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

.mui-anim-fade  { animation: mui-fade-in var(--dur-slow) var(--ease-out) both; }
.mui-anim-slide { animation: mui-slide-up var(--dur-slow) var(--ease-out) both; }

.mui-anim-stagger > * { animation: mui-slide-up var(--dur-slow) var(--ease-out) both; }
.mui-anim-stagger > *:nth-child(1) { animation-delay: 40ms;  }
.mui-anim-stagger > *:nth-child(2) { animation-delay: 80ms;  }
.mui-anim-stagger > *:nth-child(3) { animation-delay: 120ms; }
.mui-anim-stagger > *:nth-child(4) { animation-delay: 160ms; }
.mui-anim-stagger > *:nth-child(5) { animation-delay: 200ms; }
.mui-anim-stagger > *:nth-child(6) { animation-delay: 240ms; }

.mui-skeleton {
  background: linear-gradient(90deg, var(--c-surface-2) 25%, var(--c-border) 50%, var(--c-surface-2) 75%);
  background-size: 800px 100%;
  animation: mui-shimmer 1.4s linear infinite;
  border-radius: var(--r-xs);
  height: 14px;
}

/* ============================================================
   AUTH PAGE — Window split layout
   ============================================================ */
.mui-auth {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--c-bg);
}
.mui-auth__hero {
  position: relative;
  background: linear-gradient(135deg, #93c5fd 0%, #3b82f6 100%);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #ffffff;
  overflow: hidden;
}
/* abstract 3D blue swirl simulated with radial gradients */
.mui-auth__hero::before {
  content: "";
  position: absolute;
  inset: -50px;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(255,255,255,0.4), transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(96,165,250,0.5), transparent 60%),
    radial-gradient(circle at 40% 70%, rgba(59,130,246,0.6), transparent 50%);
  filter: blur(40px);
  z-index: 0;
}
.mui-auth__hero > * { position: relative; z-index: 1; }
.mui-auth__hero-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
}
.mui-auth__hero-text { max-width: 480px; }
.mui-auth__hero-text h2 {
  font-size: 2.5rem;
  font-weight: var(--fw-bold);
  margin: 0 0 var(--sp-3);
  letter-spacing: -0.02em;
}
.mui-auth__hero-text p {
  font-size: var(--fs-md);
  margin: 0;
  opacity: 0.95;
  line-height: 1.6;
}
.mui-auth__hero-foot {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
}

.mui-auth__panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
  background: var(--c-bg);
}
.mui-auth__form {
  width: 100%;
  max-width: 420px;
}
.mui-auth__title {
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  margin: 0 0 var(--sp-2);
  color: var(--c-text);
}
.mui-auth__subtitle {
  color: var(--c-text-soft);
  margin: 0 0 var(--sp-6);
  font-size: var(--fs-sm);
}
.mui-auth__divider {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin: var(--sp-5) 0;
  color: var(--c-text-muted);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
}
.mui-auth__divider::before,
.mui-auth__divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--c-border-strong);
}
.mui-auth__social {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}
.mui-auth__social .mui-btn {
  background: var(--c-surface-2);
  color: var(--c-text);
  border: 1px solid var(--c-border-strong);
}
.mui-auth__social .mui-btn:hover { background: var(--c-surface); }

.mui-row-between { display: flex; justify-content: space-between; align-items: center; margin: var(--sp-3) 0; }
.mui-link { color: var(--c-brand-500); text-decoration: none; font-weight: var(--fw-semibold); font-size: var(--fs-sm); }
.mui-link:hover { color: var(--c-brand-600); text-decoration: underline; }

/* checkbox basic */
.mui-check { display: inline-flex; align-items: center; gap: var(--sp-2); cursor: pointer; font-size: var(--fs-sm); color: var(--c-text-soft); }
.mui-check input { width: 16px; height: 16px; accent-color: var(--c-brand-500); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
.mui-mobile-toggle { display: none; }
.mui-overlay {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: var(--z-overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base);
}
.mui-overlay.is-open { opacity: 1; pointer-events: auto; }

@media (max-width: 1280px) {
  .mui-search { width: 200px; }
  .mui-topnav { display: none; }
}

@media (max-width: 1024px) {
  .mui-grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .mui-grid--3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .mui-auth { grid-template-columns: 1fr; }
  .mui-auth__hero { display: none; }
}

@media (max-width: 768px) {
  .mui-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "main";
  }
  .mui-sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--layout-sidebar-w);
    transform: translateX(-100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .mui-shell[data-mobile-open="true"] .mui-sidebar { transform: translateX(0); }
  .mui-shell[data-collapsed="true"]   .mui-sidebar { width: var(--layout-sidebar-w); }

  .mui-mobile-toggle { display: grid; }
  .mui-search { display: none; }

  .mui-grid--4, .mui-grid--3, .mui-grid--2 { grid-template-columns: 1fr; }
  .mui-main { padding: var(--sp-4); }
  .mui-header { padding: 0 var(--sp-4); }
}

@media (max-width: 480px) {
  .mui-header .hide-xs { display: none; }
}