/**
 * Pageify — Layout Styles
 * App shell: sidebar, header, content area, grid, responsive.
 * Mobile-first. Breakpoints: 640px (sm), 768px (md), 1024px (lg).
 */

/* ══════════════════════════════════════
   APP SHELL
   ══════════════════════════════════════ */

.app-shell {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--pgf-sidebar-width);
    height: 100vh;
    background: var(--pgf-bg);
    border-right: 1px solid var(--pgf-border);
    display: flex;
    flex-direction: column;
    z-index: var(--pgf-z-sticky);
    transition: transform var(--pgf-transition-slow), width var(--pgf-transition-slow);
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--pgf-border) transparent;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
    padding: var(--pgf-space-md) var(--pgf-space-lg);
    height: var(--pgf-header-height);
    border-bottom: 1px solid var(--pgf-border);
    flex-shrink: 0;
}

.sidebar-header .logo {
    height: 28px;
    width: auto;
}

.sidebar-header .logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--pgf-primary);
    letter-spacing: -0.02em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--pgf-space-md) var(--pgf-space-sm);
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: var(--pgf-space-md);
}

.sidebar-section-title {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--pgf-text-muted);
    padding: 0 var(--pgf-space-sm);
    margin-bottom: 6px;
    opacity: 0.7;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
    padding: 7px 10px;
    font-size: 0.8125rem;
    color: var(--pgf-text-secondary);
    border-radius: var(--pgf-radius-sm);
    cursor: pointer;
    transition: all var(--pgf-transition);
    text-decoration: none;
    font-weight: 400;
    position: relative;
}

.sidebar-item:hover {
    background: var(--pgf-bg-hover);
    color: var(--pgf-text);
    text-decoration: none;
}

.sidebar-item.active {
    background: var(--pgf-primary-light);
    color: var(--pgf-primary);
    font-weight: 600;
}

.sidebar-item i {
    width: 20px;
    text-align: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.sidebar-item .count {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--pgf-text-muted);
}

/* Collection item with color */
.sidebar-item .collection-color {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Nested collections */
.sidebar-nested {
    padding-left: var(--pgf-space-lg);
}

.sidebar-footer {
    padding: var(--pgf-space-md) var(--pgf-space-lg);
    border-top: 1px solid var(--pgf-border);
    flex-shrink: 0;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
}

.sidebar-user .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--pgf-primary-light);
    color: var(--pgf-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.sidebar-user .user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user .user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--pgf-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-plan {
    font-size: 0.6875rem;
    color: var(--pgf-text-muted);
}

/* ── Sidebar collapse toggle button ── */
.sidebar-collapse-btn {
    display: none;
    background: none;
    border: none;
    color: var(--pgf-text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--pgf-radius-xs);
    font-size: 0.875rem;
    transition: all var(--pgf-transition);
    margin-left: auto;
}

.sidebar-collapse-btn:hover {
    color: var(--pgf-text);
    background: var(--pgf-bg-hover);
}

/* Show collapse button on desktop */
@media (min-width: 768px) {
    .sidebar-collapse-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ── Sidebar collapsed state ── */
.sidebar.collapsed {
    width: 60px;
}

.sidebar.collapsed ~ .main-content {
    margin-left: 60px;
}

.sidebar.collapsed .sidebar-header .logo-text,
.sidebar.collapsed .sidebar-section-title,
.sidebar.collapsed .sidebar-item span,
.sidebar.collapsed .sidebar-item .count,
.sidebar.collapsed .sidebar-section-header span,
.sidebar.collapsed .sidebar-section-header .sidebar-section-title,
.sidebar.collapsed .sidebar-user .user-info,
.sidebar.collapsed .sidebar-lang,
.sidebar.collapsed .sidebar-capture-label {
    display: none;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: var(--pgf-space-md) var(--pgf-space-sm);
}

.sidebar.collapsed .sidebar-nav {
    padding: var(--pgf-space-sm) 6px;
}

.sidebar.collapsed .sidebar-item {
    justify-content: center;
    padding: 10px;
    position: relative;
}

.sidebar.collapsed .sidebar-item i {
    width: auto;
    font-size: 1rem;
}

.sidebar.collapsed .sidebar-section-header {
    justify-content: center;
}

.sidebar.collapsed .sidebar-section-header button {
    margin: 0 auto;
}

.sidebar.collapsed .sidebar-footer {
    padding: var(--pgf-space-sm);
}

.sidebar.collapsed .sidebar-user {
    justify-content: center;
}

.sidebar.collapsed .sidebar-user .avatar {
    width: 36px;
    height: 36px;
}

.sidebar.collapsed .sidebar-collapse-btn i::before {
    content: "\f101";
}

/* ── Tooltips on collapsed sidebar ── */
.sidebar.collapsed .sidebar-item[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--pgf-text);
    color: var(--pgf-text-inverse);
    padding: 5px 10px;
    border-radius: var(--pgf-radius-xs);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 150ms ease;
    z-index: 1000;
}

.sidebar.collapsed .sidebar-item[data-tooltip]::before {
    content: '';
    position: absolute;
    left: calc(100% + 3px);
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-right-color: var(--pgf-text);
    opacity: 0;
    pointer-events: none;
    transition: opacity 150ms ease;
}

.sidebar.collapsed .sidebar-item[data-tooltip]:hover::after,
.sidebar.collapsed .sidebar-item[data-tooltip]:hover::before {
    opacity: 1;
}

/* Mobile sidebar overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: calc(var(--pgf-z-sticky) - 1);
}

/* ── Main content area ── */
.main-content {
    flex: 1;
    margin-left: var(--pgf-sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Header ── */
.header {
    position: sticky;
    top: 0;
    height: var(--pgf-header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--pgf-border);
    display: flex;
    align-items: center;
    padding: 0 var(--pgf-space-lg);
    gap: var(--pgf-space-md);
    z-index: var(--pgf-z-sticky);
}

[data-theme="dark"] .header {
    background: rgba(15, 23, 42, 0.85);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-md);
    flex: 1;
}

.header-title {
    font-size: 0.9375rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
}

/* Search bar */
.search-bar {
    position: relative;
    max-width: 400px;
    flex: 1;
}

.search-bar .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--pgf-text-muted);
    font-size: 0.875rem;
    pointer-events: none;
}

.search-bar input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    font-family: var(--pgf-font);
    font-size: 0.8125rem;
    background: var(--pgf-bg-alt);
    border: 1px solid transparent;
    border-radius: 10px;
    color: var(--pgf-text);
    transition: all var(--pgf-transition);
}

.search-bar input:focus {
    background: var(--pgf-bg);
    border-color: var(--pgf-border-focus);
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 80, 144, 0.1);
}

.search-bar input::placeholder {
    color: var(--pgf-text-muted);
    font-size: 0.8125rem;
}

/* Menu toggle (mobile) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--pgf-text);
    cursor: pointer;
    padding: var(--pgf-space-xs);
}

/* ── Content ── */
.content {
    flex: 1;
    padding: var(--pgf-space-lg);
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--pgf-space-lg);
    flex-wrap: wrap;
    gap: var(--pgf-space-sm);
}

.content-header h2 {
    font-size: 1.25rem;
}

/* ── Toolbar ── */
.toolbar {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
    padding: var(--pgf-space-sm) 0;
    flex-wrap: wrap;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--pgf-bg-alt);
    border-radius: 10px;
    padding: 3px;
    border: 1px solid var(--pgf-border);
}

.toolbar-btn {
    padding: 5px 10px;
    border: none;
    background: transparent;
    border-radius: 8px;
    color: var(--pgf-text-muted);
    cursor: pointer;
    font-size: 0.8125rem;
    transition: all var(--pgf-transition);
}

.toolbar-btn:hover {
    color: var(--pgf-text);
    background: rgba(255,255,255,0.6);
}

.toolbar-btn.active {
    color: var(--pgf-primary);
    background: var(--pgf-bg);
    box-shadow: var(--pgf-shadow-sm, var(--pgf-shadow));
    font-weight: 500;
}

/* ══════════════════════════════════════
   GRID LAYOUTS (Bookmark views)
   ══════════════════════════════════════ */

/* Grid view (default) */
.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

/* List view */
.view-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--pgf-bg);
    border: 1px solid var(--pgf-border);
    border-radius: var(--pgf-radius);
    overflow: hidden;
    box-shadow: var(--pgf-shadow);
}

.view-list .bookmark-list-item {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-md);
    padding: 10px var(--pgf-space-md);
    background: var(--pgf-bg);
    transition: background var(--pgf-transition);
    cursor: pointer;
    border-bottom: 1px solid var(--pgf-border);
}

.view-list .bookmark-list-item:last-child {
    border-bottom: none;
}

.view-list .bookmark-list-item:hover {
    background: var(--pgf-bg-hover);
}

.view-list .bookmark-list-item .favicon {
    width: 22px;
    height: 22px;
    border-radius: 5px;
    flex-shrink: 0;
}

.view-list .bookmark-list-item .bookmark-info {
    flex: 1;
    min-width: 0;
}

.view-list .bookmark-list-item .bookmark-title {
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--pgf-text);
    text-decoration: none;
}

.view-list .bookmark-list-item .bookmark-title:hover {
    color: var(--pgf-primary);
}

.view-list .bookmark-list-item .bookmark-domain {
    font-size: 0.6875rem;
    color: var(--pgf-text-muted);
    margin-top: 1px;
}

.view-list .bookmark-list-item .bookmark-tags {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.view-list .bookmark-list-item .bookmark-date {
    font-size: 0.6875rem;
    color: var(--pgf-text-muted);
    flex-shrink: 0;
    white-space: nowrap;
}

/* Headlines view */
.view-headlines {
    display: flex;
    flex-direction: column;
    background: var(--pgf-bg);
    border: 1px solid var(--pgf-border);
    border-radius: var(--pgf-radius);
    overflow: hidden;
    box-shadow: var(--pgf-shadow);
}

.view-headlines .headline-item {
    padding: 8px 14px;
    border-bottom: 1px solid var(--pgf-border);
    display: flex;
    align-items: center;
    gap: var(--pgf-space-sm);
    transition: background var(--pgf-transition);
}

.view-headlines .headline-item:hover {
    background: var(--pgf-bg-hover);
}

.view-headlines .headline-item:last-child {
    border-bottom: none;
}

.view-headlines .headline-item .favicon {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    flex-shrink: 0;
}

.view-headlines .headline-item a {
    font-size: 0.8125rem;
    color: var(--pgf-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-decoration: none;
    font-weight: 450;
}

.view-headlines .headline-item a:hover {
    color: var(--pgf-primary);
}

/* Masonry view */
.view-masonry {
    columns: 4;
    column-gap: var(--pgf-space-md);
}

.view-masonry .bookmark-card {
    break-inside: avoid;
    margin-bottom: var(--pgf-space-md);
}

/* ══════════════════════════════════════
   AUTH LAYOUT (Login, Register, etc.)
   ══════════════════════════════════════ */

.auth-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--pgf-space-lg);
    background: linear-gradient(135deg, var(--pgf-bg-alt) 0%, #fdf8f4 100%);
}

[data-theme="dark"] .auth-layout {
    background: var(--pgf-bg-alt);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--pgf-bg);
    border-radius: var(--pgf-radius);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
    padding: var(--pgf-space-xl) var(--pgf-space-xl) var(--pgf-space-lg);
}

[data-theme="dark"] .auth-card {
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.4), 0 1px 6px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--pgf-border);
}

.auth-card .auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--pgf-space-sm);
    margin-bottom: var(--pgf-space-xl);
}

.auth-card .auth-logo img {
    height: 40px;
}

.auth-card .auth-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--pgf-primary);
}

.auth-card h1 {
    font-size: 1.375rem;
    text-align: center;
    margin-bottom: var(--pgf-space-sm);
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--pgf-text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--pgf-space-xl);
}

.auth-card .auth-footer {
    text-align: center;
    margin-top: var(--pgf-space-lg);
    font-size: 0.875rem;
    color: var(--pgf-text-muted);
}

.auth-card .auth-back {
    text-align: center;
    margin-top: var(--pgf-space-md);
    font-size: 0.8125rem;
}

.auth-card .auth-back a {
    color: var(--pgf-text-muted);
    text-decoration: none;
    transition: color var(--pgf-transition);
}

.auth-card .auth-back a:hover {
    color: var(--pgf-primary);
}

.auth-card .auth-back i {
    margin-right: 4px;
}

/* FontAwesome fallback for close button */
.sr-fallback {
    display: none;
}

.auth-card .auth-divider {
    display: flex;
    align-items: center;
    gap: var(--pgf-space-md);
    margin: var(--pgf-space-lg) 0;
    color: var(--pgf-text-muted);
    font-size: 0.8125rem;
}

.auth-card .auth-divider::before,
.auth-card .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--pgf-border);
}

/* ══════════════════════════════════════
   RESPONSIVE — Mobile-first
   ══════════════════════════════════════ */

/* Mobile: sidebar hidden, hamburger shown */
@media (max-width: 767px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar.open ~ .sidebar-overlay {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .content {
        padding: var(--pgf-space-md);
    }

    .view-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--pgf-space-sm);
    }

    .view-masonry {
        columns: 2;
    }

    .header {
        padding: 0 var(--pgf-space-md);
    }

    .search-bar {
        max-width: none;
    }

    .content-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1023px) {
    .view-masonry {
        columns: 3;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .view-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .view-masonry {
        columns: 4;
    }
}

/* Large desktop */
@media (min-width: 1440px) {
    .view-masonry {
        columns: 5;
    }
}