/**
 * SAW LMS Design System - Layout
 * 
 * App shell, header, sidebar, and page layouts
 */

/* ================================
   APP SHELL
   ================================ */
.saw-app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.saw-app__main {
    display: flex;
    flex: 1;
}

.saw-app__content {
    flex: 1;
    overflow-y: auto;
}

/* ================================
   HEADER
   ================================ */
.saw-header {
    height: var(--saw-header-height);
    background: var(--saw-surface);
    border-bottom: 1px solid var(--saw-border);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: var(--saw-z-sticky);
    width: 100%;
}

.saw-header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--saw-container-max, 1280px);
    margin: 0 auto;
    padding: 0 var(--saw-spacing-4, 1rem);
    height: 100%;
}

.saw-header__logo {
    display: flex;
    align-items: center;
    gap: var(--saw-space-3);
}

.saw-header__logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--saw-text);
    font-weight: var(--saw-font-bold);
    font-size: var(--saw-text-xl);
}

.saw-header__logo img,
.saw-header__logo .custom-logo {
    height: 32px;
    width: auto;
}

.saw-header__nav {
    display: flex;
    align-items: center;
    gap: var(--saw-space-1);
    margin-left: var(--saw-space-8);
    height: 100%;
}

/* Nav list - horizontal menu */
.saw-header__nav-list {
    display: flex;
    align-items: center;
    gap: var(--saw-space-1);
    margin: 0;
    padding: 0;
    list-style: none;
    height: 100%;
}

/* Nav item - single menu item */
.saw-header__nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

/* Nav link - clickable link */
.saw-header__nav-link {
    display: flex;
    align-items: center;
    gap: var(--saw-space-2);
    padding: var(--saw-space-2) var(--saw-space-3);
    font-size: var(--saw-text-sm);
    font-weight: var(--saw-font-medium);
    color: var(--saw-text-secondary);
    border-radius: var(--saw-radius);
    transition: all var(--saw-duration-fast) var(--saw-ease-default);
    text-decoration: none;
    white-space: nowrap;
}

.saw-header__nav-link:hover {
    color: var(--saw-text);
    background: var(--saw-bg-alt);
}

.saw-header__nav-item--active .saw-header__nav-link {
    color: var(--saw-primary);
}

/* Nav link icons */
.saw-header__nav-link .saw-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Chevron for dropdowns */
.saw-header__nav-chevron {
    width: 14px !important;
    height: 14px !important;
    margin-left: 2px;
    transition: transform 0.2s;
}

.saw-header__nav-item--has-children:hover .saw-header__nav-chevron {
    transform: rotate(180deg);
}

/* Highlight style for special nav items (e.g., "Pro firmy") */
.saw-header__nav-item--highlight>.saw-header__nav-link {
    color: var(--saw-primary);
    font-weight: 600;
}

/* Nav Dropdown Menu */
.saw-header__dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background: var(--saw-surface);
    border: 1px solid var(--saw-border);
    border-radius: var(--saw-radius-lg);
    box-shadow: var(--saw-shadow-lg);
    padding: var(--saw-space-2) 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
    z-index: 100;
    list-style: none;
    margin: 0;
}

.saw-header__nav-item--has-children:hover .saw-header__dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.saw-header__dropdown-menu li {
    margin: 0;
}

.saw-header__dropdown-link {
    display: block;
    padding: var(--saw-space-2) var(--saw-space-4);
    color: var(--saw-text);
    text-decoration: none;
    font-size: var(--saw-text-sm);
    transition: background 0.15s;
}

.saw-header__dropdown-link:hover {
    background: var(--saw-bg-alt);
    color: var(--saw-primary);
}

.saw-header__actions {
    display: flex;
    align-items: center;
    gap: var(--saw-space-2);
    margin-left: auto;
}

.saw-header__search {
    position: relative;
    width: 240px;
}

.saw-header__search-input {
    width: 100%;
    padding: var(--saw-space-2) var(--saw-space-3);
    padding-left: var(--saw-space-10);
    font-size: var(--saw-text-sm);
    background: var(--saw-bg-alt);
    border: 1px solid transparent;
    border-radius: var(--saw-radius-full);
}

.saw-header__search-input:focus {
    background: var(--saw-surface);
    border-color: var(--saw-border);
}

.saw-header__search-icon {
    position: absolute;
    left: var(--saw-space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--saw-text-tertiary);
}

/* ================================
   SIDEBAR
   ================================ */
.saw-sidebar {
    width: var(--saw-sidebar-width);
    background: var(--saw-surface);
    border-right: 1px solid var(--saw-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: width var(--saw-duration-normal) var(--saw-ease-default);
}

.saw-sidebar.is-collapsed {
    width: var(--saw-sidebar-collapsed);
}

.saw-sidebar__header {
    padding: var(--saw-space-4);
    border-bottom: 1px solid var(--saw-border);
}

.saw-sidebar__nav {
    flex: 1;
    padding: var(--saw-space-4);
}

.saw-sidebar__section {
    margin-bottom: var(--saw-space-6);
}

.saw-sidebar__section-title {
    font-size: var(--saw-text-xs);
    font-weight: var(--saw-font-semibold);
    color: var(--saw-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--saw-space-2);
    margin-bottom: var(--saw-space-2);
}

.saw-sidebar__link {
    display: flex;
    align-items: center;
    gap: var(--saw-space-3);
    padding: var(--saw-space-3);
    font-size: var(--saw-text-sm);
    color: var(--saw-text-secondary);
    border-radius: var(--saw-radius);
    transition: all var(--saw-duration-fast) var(--saw-ease-default);
}

.saw-sidebar__link:hover {
    color: var(--saw-text);
    background: var(--saw-bg-alt);
}

.saw-sidebar__link.is-active {
    color: var(--saw-primary);
    background: var(--saw-primary-subtle);
}

.saw-sidebar__link-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.saw-sidebar__footer {
    padding: var(--saw-space-4);
    border-top: 1px solid var(--saw-border);
}

/* ================================
   CONTAINER
   ================================ */
.saw-container {
    width: 100%;
    max-width: var(--saw-container-max, 1280px);
    margin: 0 auto;
    padding: 0 var(--saw-spacing-4, 1rem);
}

.saw-container--sm {
    max-width: var(--saw-container-sm);
}

.saw-container--md {
    max-width: var(--saw-container-md);
}

.saw-container--lg {
    max-width: var(--saw-container-lg);
}

.saw-container--full {
    max-width: none;
}

/* ================================
   PAGE LAYOUTS
   ================================ */
.saw-page {
    padding: var(--saw-space-6);
}

.saw-page__header {
    margin-bottom: var(--saw-space-6);
}

.saw-page__title {
    font-size: var(--saw-text-3xl);
    font-weight: var(--saw-font-bold);
    margin-bottom: var(--saw-space-2);
}

.saw-page__subtitle {
    font-size: var(--saw-text-lg);
    color: var(--saw-text-secondary);
}

/* Two column layout */
.saw-layout-two-col {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--saw-space-6);
}

.saw-layout-two-col__main {
    min-width: 0;
}

.saw-layout-two-col__sidebar {
    position: sticky;
    top: calc(var(--saw-header-height) + var(--saw-space-6));
    max-height: calc(100vh - var(--saw-header-height) - var(--saw-space-12));
    overflow-y: auto;
}

/* ================================
   GRID SYSTEM
   ================================ */
.saw-grid {
    display: grid;
    gap: var(--saw-space-4);
}

.saw-grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.saw-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.saw-grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Responsive grids */
@media (max-width: 1024px) {
    .saw-grid--4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {

    .saw-grid--3,
    .saw-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .saw-layout-two-col {
        grid-template-columns: 1fr;
    }

    .saw-layout-two-col__sidebar {
        position: static;
        max-height: none;
    }
}

@media (max-width: 640px) {

    .saw-grid--2,
    .saw-grid--3,
    .saw-grid--4 {
        grid-template-columns: 1fr;
    }
}

/* ================================
   UTILITIES
   ================================ */
.saw-flex {
    display: flex;
}

.saw-flex-col {
    flex-direction: column;
}

.saw-items-center {
    align-items: center;
}

.saw-justify-center {
    justify-content: center;
}

.saw-justify-between {
    justify-content: space-between;
}

.saw-gap-2 {
    gap: var(--saw-space-2);
}

.saw-gap-4 {
    gap: var(--saw-space-4);
}

.saw-gap-6 {
    gap: var(--saw-space-6);
}

.saw-text-center {
    text-align: center;
}

.saw-text-right {
    text-align: right;
}

.saw-text-muted {
    color: var(--saw-text-secondary);
}

.saw-mt-4 {
    margin-top: var(--saw-space-4);
}

.saw-mt-6 {
    margin-top: var(--saw-space-6);
}

.saw-mb-4 {
    margin-bottom: var(--saw-space-4);
}

.saw-mb-6 {
    margin-bottom: var(--saw-space-6);
}

.saw-hidden {
    display: none !important;
}

.saw-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ================================
   RESPONSIVE HELPERS
   ================================ */
@media (max-width: 768px) {
    .saw-hide-mobile {
        display: none !important;
    }

    .saw-sidebar {
        position: fixed;
        left: 0;
        top: var(--saw-header-height);
        bottom: 0;
        z-index: var(--saw-z-fixed);
        transform: translateX(-100%);
    }

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

    .saw-header__nav {
        display: none;
    }
}

@media (min-width: 769px) {
    .saw-hide-desktop {
        display: none !important;
    }
}

/* ================================
   HEADER ACTIONS (cart, theme, user)
   ================================ */
.saw-header__actions {
    display: flex;
    align-items: center;
    gap: var(--saw-space-1);
    margin-left: auto;
}

.saw-header__action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    color: var(--saw-text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--saw-radius);
    cursor: pointer;
    transition: all var(--saw-duration-fast) var(--saw-ease-default);
    flex-shrink: 0;
    position: relative;
}

.saw-header__action:hover {
    color: var(--saw-text);
    background: var(--saw-bg-alt);
}

.saw-header__action .saw-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Theme toggle - ensure it's visible */
.saw-header__theme-toggle {
    z-index: 1;
}

/* Cart icon with badge */
.saw-header__cart {
    position: relative;
}

.saw-header__cart-count {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 10px;
    font-weight: 600;
    line-height: 16px;
    text-align: center;
    color: white;
    background: var(--saw-primary);
    border-radius: 99px;
}

.saw-header__cart-count[data-cart-count="0"] {
    display: none;
}

/* ================================
   USER MENU DROPDOWN
   ================================ */
.saw-header__user-menu {
    position: relative;
    margin-left: var(--saw-space-2);
}

.saw-header__user-toggle {
    display: flex;
    align-items: center;
    gap: var(--saw-space-2);
    padding: var(--saw-space-1) var(--saw-space-3) var(--saw-space-1) var(--saw-space-1);
    background: transparent;
    border: none;
    border-radius: var(--saw-radius-full);
    cursor: pointer;
    transition: all var(--saw-duration-fast) var(--saw-ease-default);
    color: var(--saw-text);
    width: auto;
    height: auto;
}

.saw-header__user-toggle:hover {
    background: var(--saw-bg-alt);
}

/* Avatar - force consistent size */
.saw-header__avatar,
.saw-header__avatar img,
.saw-header__user-toggle img {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    min-height: 32px !important;
    max-width: 32px !important;
    max-height: 32px !important;
    border-radius: 50% !important;
    object-fit: cover !important;
    flex-shrink: 0;
}

/* User name - desktop only */
.saw-header__user-name {
    font-weight: 500;
    font-size: var(--saw-text-sm);
    color: var(--saw-text);
    white-space: nowrap;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Chevron icon */
.saw-header__user-toggle .saw-icon--chevron-down {
    width: 16px;
    height: 16px;
    color: var(--saw-text-secondary);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.saw-header__user-menu:hover .saw-header__user-toggle .saw-icon--chevron-down,
.saw-header__user-menu[aria-expanded="true"] .saw-header__user-toggle .saw-icon--chevron-down {
    transform: rotate(180deg);
}

/* Dropdown panel */
.saw-header__dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--saw-surface);
    border: 1px solid var(--saw-border);
    border-radius: var(--saw-radius-lg);
    box-shadow: var(--saw-shadow-lg);
    padding: var(--saw-space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: all 0.15s ease;
    z-index: 1000;
}

/* Invisible bridge between toggle and dropdown */
.saw-header__dropdown::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    height: 12px;
}

.saw-header__user-menu:hover .saw-header__dropdown,
.saw-header__user-menu:focus-within .saw-header__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.saw-header__dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--saw-space-3);
    padding: var(--saw-space-3) var(--saw-space-4);
    color: var(--saw-text);
    text-decoration: none;
    font-size: var(--saw-text-sm);
    font-weight: 500;
    border-radius: var(--saw-radius);
    transition: all var(--saw-duration-fast) var(--saw-ease-default);
}

.saw-header__dropdown-item:hover {
    background: var(--saw-bg-alt);
    color: var(--saw-primary);
}

.saw-header__dropdown-item--danger {
    color: var(--saw-error);
}

.saw-header__dropdown-item--danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--saw-error);
}

.saw-header__dropdown-divider {
    height: 1px;
    background: var(--saw-border);
    border: none;
    margin: var(--saw-space-2) 0;
}

.saw-header__dropdown-item .saw-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ================================
   MOBILE HEADER ADJUSTMENTS
   ================================ */
.saw-header__mobile-toggle {
    display: none;
}

@media (max-width: 768px) {
    .saw-header__nav {
        display: none;
    }

    .saw-header__mobile-toggle {
        display: flex;
    }

    /* Hide username on mobile, show only avatar */
    .saw-header__user-name,
    .saw-header__user-toggle .saw-icon--chevron-down {
        display: none;
    }

    /* Make user toggle just avatar on mobile */
    .saw-header__user-toggle {
        padding: var(--saw-space-1);
        border-radius: 50%;
    }

    /* Adjust dropdown position on mobile */
    .saw-header__dropdown {
        right: -8px;
        min-width: 180px;
    }

    /* Keep theme toggle visible on mobile */
    .saw-header__theme-toggle {
        display: flex;
    }
}

/* ================================
   ICON SPINNER
   ================================ */
.saw-icon--spin {
    animation: saw-spin 1s linear infinite;
}

@keyframes saw-spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}