/* ============================================================
   LAYOUT.CSS — App Shell: Sidebar, Topbar, Content
   Aplikasi Absensi SMKN 1 Arahan
   ============================================================ */

/* === APP SHELL === */
.app-shell {
    display: flex;
    min-height: 100vh;
    background: var(--bg-primary);
}

/* === SIDEBAR (Desktop) === */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-sidebar);
    background: var(--bg-secondary);
    border-right: 1px solid var(--bg-glass-border);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar__header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    border-bottom: 1px solid var(--bg-glass-border);
    flex-shrink: 0;
}

.sidebar__logo {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    object-fit: contain;
    flex-shrink: 0;
}

.sidebar__brand {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sidebar__brand-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar__brand-sub {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    white-space: nowrap;
}

/* Sidebar Navigation */
.sidebar__nav {
    flex: 1;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.sidebar__nav-section {
    margin-top: var(--space-md);
}

.sidebar__nav-label {
    font-size: 10px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-sm) var(--space-md);
}

.sidebar__nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.7rem var(--space-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
    position: relative;
    cursor: pointer;
}

.sidebar__nav-item:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.sidebar__nav-item.active {
    background: var(--accent-blue-soft);
    color: var(--accent-blue);
}

.sidebar__nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    background: var(--accent-blue);
}

.sidebar__nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar__nav-badge {
    margin-left: auto;
    min-width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: var(--accent-red);
    color: white;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
}

/* Sidebar Footer */
.sidebar__footer {
    padding: var(--space-md);
    border-top: 1px solid var(--bg-glass-border);
    flex-shrink: 0;
}

.sidebar__user {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
}

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

.sidebar__user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar__user-role {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* === MAIN CONTENT AREA === */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-base);
}

/* === TOPBAR === */
.topbar {
    height: var(--topbar-height);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--bg-glass-border);
    background: hsla(225, 25%, 8%, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    flex-shrink: 0;
}

.topbar__left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar__hamburger {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    background: none;
    border: none;
    transition: all var(--transition-fast);
}

.topbar__hamburger:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.topbar__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.topbar__subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.topbar__right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar__time {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-variant-numeric: tabular-nums;
}

.topbar__time-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* === PAGE CONTENT === */
.page-content {
    flex: 1;
    padding: var(--space-xl);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
}

/* === PAGE HEADER === */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.page-header__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
}

.page-header__desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

/* === KPI GRID === */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

/* === CONTENT GRID === */
.content-grid {
    display: grid;
    gap: var(--space-lg);
}

.content-grid--2col {
    grid-template-columns: 1fr 1fr;
}

.content-grid--3col {
    grid-template-columns: 1fr 1fr 1fr;
}

.content-grid--sidebar {
    grid-template-columns: 2fr 1fr;
}

/* === SECTION === */
.section {
    margin-bottom: var(--space-xl);
}

.section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.section__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* === MOBILE BOTTOM NAVIGATION === */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--bg-glass-border);
    z-index: var(--z-sticky);
    padding: 0 var(--space-sm);
    backdrop-filter: blur(16px);
}

.bottom-nav__items {
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 100%;
}

.bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-muted);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
    border-radius: var(--radius-sm);
    min-width: 56px;
}

.bottom-nav__item:hover,
.bottom-nav__item.active {
    color: var(--accent-blue);
}

.bottom-nav__item.active {
    color: var(--accent-blue);
}

.bottom-nav__icon {
    font-size: 1.25rem;
}

/* === SIDEBAR OVERLAY (Mobile) === */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: calc(var(--z-sidebar) - 1);
}

.sidebar-overlay.active {
    display: block;
}

/* === QUICK ACTION GRID (Siswa) === */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.quick-action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-md);
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
}

.quick-action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--bg-glass-border-hover);
}

.quick-action-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.quick-action-card__label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

/* === DATA TABLE TOOLBAR === */
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--bg-glass-border);
    flex-wrap: wrap;
}

.table-toolbar__left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
    min-width: 200px;
}

.table-toolbar__right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* === TABLE INFO BAR === */
.table-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    border-top: 1px solid var(--bg-glass-border);
}

/* === LIVE FEED === */
.live-feed {
    max-height: 400px;
    overflow-y: auto;
}

.live-feed__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.04);
    transition: background var(--transition-fast);
}

.live-feed__item:hover {
    background: hsla(225, 25%, 20%, 0.2);
}

.live-feed__item:last-child {
    border-bottom: none;
}

.live-feed__time {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    min-width: 48px;
}

.live-feed__name {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.live-feed__class {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    min-width: 80px;
}

.live-feed__new {
    animation: fadeInDown 0.5s ease;
    background: hsla(152, 68%, 52%, 0.03);
}