/**
 * App shell — sidebar layout (adapted from Prosim Account Manager design system)
 */

:root {
    --rd-font-ar: "Cairo", "Tajawal", system-ui, sans-serif;
    --rd-radius-sm: 0.625rem;
    --rd-radius-md: 0.875rem;
    --rd-z-sidebar: 1040;
    --rd-z-topbar: 1030;
    --rd-z-backdrop: 1025;
    --rd-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --rd-transition-fast: 0.14s ease;

    --bs-body-bg: #f4f6f9;
    --bs-body-color: #0f172a;
    --bs-secondary-bg: #ffffff;
    --bs-tertiary-bg: #eef1f6;
    --bs-border-color: rgba(15, 23, 42, 0.08);
    --bs-secondary-color: #64748b;
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;

    --rd-accent: #4f46e5;
    --rd-accent-muted: rgba(79, 70, 229, 0.12);
    --rd-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --rd-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --rd-shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.1);

    --rd-nav-bw-bg: #ffffff;
    --rd-nav-bw-hover: color-mix(in srgb, var(--rd-accent-muted) 55%, transparent);
    --rd-nav-bw-active-bg: var(--rd-accent-muted);
    --rd-nav-bw-active-text: var(--bs-primary);
    --rd-nav-bw-active-border: rgba(var(--bs-primary-rgb), 0.2);
    --rd-nav-bw-text: #111111;
    --rd-nav-bw-muted: #6b7280;
    --rd-nav-bw-border: rgba(17, 17, 17, 0.08);
}

html {
    font-size: 80%;
}

body.app-shell {
    font-family: var(--rd-font-ar);
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    -webkit-font-smoothing: antialiased;
}

.rd-app {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr;
    isolation: isolate;
}

@media (min-width: 992px) {
    .rd-app {
        grid-template-columns: minmax(14rem, 16.75rem) 1fr;
    }
}

.rd-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(18rem, 88vw);
    z-index: var(--rd-z-sidebar);
    background: var(--rd-nav-bw-bg);
    color: var(--rd-nav-bw-text);
    border-right: 1px solid var(--rd-nav-bw-border);
    transform: translateX(-105%);
    transition: transform var(--rd-transition), box-shadow var(--rd-transition);
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: var(--rd-shadow-lg);
}

[dir="rtl"] .rd-sidebar {
    left: auto;
    right: 0;
    transform: translateX(105%);
    border-right: none;
    border-left: 1px solid var(--rd-nav-bw-border);
}

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

@media (min-width: 992px) {
    .rd-sidebar {
        position: sticky;
        top: 0;
        height: 100vh;
        transform: none !important;
        box-shadow: none;
        border-inline-end: 1px solid var(--rd-nav-bw-border);
    }

    [dir="rtl"] .rd-sidebar {
        transform: none !important;
    }
}

.rd-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--rd-z-backdrop);
    background: rgba(2, 6, 23, 0.45);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--rd-transition);
}

.rd-sidebar-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
}

@media (min-width: 992px) {
    .rd-sidebar-backdrop {
        display: none !important;
    }
}

.rd-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.25rem 0.55rem 0.95rem;
    text-decoration: none;
    color: inherit;
    border-radius: var(--rd-radius-sm);
    transition: background var(--rd-transition-fast);
}

.rd-sidebar-brand:hover {
    background: var(--rd-nav-bw-hover);
    color: inherit;
}

.rd-sidebar-brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--rd-radius-sm);
    background: linear-gradient(135deg, var(--rd-accent), #6366f1);
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 800;
    font-size: 0.85rem;
    box-shadow: var(--rd-shadow-sm);
    flex-shrink: 0;
}

.rd-sidebar-brand-title {
    font-weight: 700;
    line-height: 1.25;
    font-size: 0.92rem;
}

.rd-sidebar-brand-tagline {
    color: var(--rd-nav-bw-muted);
    font-size: 0.72rem;
}

.rd-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
    flex: 1;
    overflow-y: auto;
    padding-block: 0.25rem;
}

.rd-nav-section {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--rd-nav-bw-muted);
    padding: 0.75rem 0.65rem 0.35rem;
}

.rd-nav-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.58rem 0.75rem;
    border-radius: var(--rd-radius-sm);
    color: var(--rd-nav-bw-text);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    border: 1px solid transparent;
    transition: background var(--rd-transition-fast), color var(--rd-transition-fast);
}

.rd-nav-link:hover {
    background: var(--rd-nav-bw-hover);
    color: inherit;
}

.rd-nav-link.is-active {
    background: var(--rd-nav-bw-active-bg);
    color: var(--rd-nav-bw-active-text);
    border-color: var(--rd-nav-bw-active-border);
}

.rd-nav-icon {
    flex: 0 0 auto;
    width: 1.15rem;
    height: 1.15rem;
    opacity: 0.78;
}

.rd-nav-link.is-active .rd-nav-icon {
    opacity: 1;
    color: var(--bs-primary);
}

.rd-nav-icon svg {
    width: 1.15rem;
    height: 1.15rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.rd-nav-link.is-active .rd-nav-icon svg {
    stroke-width: 2;
}

.rd-sidebar-footer {
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--rd-nav-bw-border);
}

.rd-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.rd-topbar {
    position: sticky;
    top: 0;
    z-index: var(--rd-z-topbar);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.65rem 1rem;
    background: color-mix(in srgb, var(--bs-secondary-bg) 88%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bs-border-color);
}

@media (min-width: 992px) {
    .rd-topbar {
        padding-inline: 1.35rem;
    }
}

.rd-topbar-start {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.rd-topbar-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rd-topbar-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.rd-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--rd-radius-sm);
    border: 1px solid var(--bs-border-color);
    background: var(--bs-secondary-bg);
    color: inherit;
    cursor: pointer;
    transition: background var(--rd-transition-fast);
}

.rd-menu-btn:hover {
    background: var(--bs-tertiary-bg);
}

@media (min-width: 992px) {
    .rd-menu-btn {
        display: none;
    }
}

.rd-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--rd-accent), #6366f1);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    overflow: hidden;
}

.rd-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.rd-avatar-sm { width: 2rem; height: 2rem; font-size: 0.78rem; }
.rd-avatar-md { width: 2.6rem; height: 2.6rem; font-size: 0.95rem; }
.rd-avatar-lg { width: 4rem; height: 4rem; font-size: 1.4rem; }

.rd-user-menu {
    position: relative;
}

.rd-user-menu > summary {
    list-style: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.55rem 0.25rem 0.3rem;
    border-radius: 999px;
    border: 1px solid var(--bs-border-color);
    background: var(--bs-secondary-bg);
    color: inherit;
    transition: background var(--rd-transition-fast), border-color var(--rd-transition-fast);
    user-select: none;
}

.rd-user-menu > summary::-webkit-details-marker { display: none; }
.rd-user-menu > summary::marker { content: ""; }

.rd-user-menu > summary:hover {
    background: var(--bs-tertiary-bg);
}

.rd-user-menu[open] > summary {
    border-color: var(--rd-accent);
    background: var(--bs-tertiary-bg);
}

.rd-user-menu-name {
    font-size: 0.85rem;
    font-weight: 600;
    max-width: 9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rd-user-menu-caret {
    opacity: 0.65;
    transition: transform var(--rd-transition-fast);
}

.rd-user-menu[open] .rd-user-menu-caret {
    transform: rotate(180deg);
}

.rd-user-menu-panel {
    position: absolute;
    top: calc(100% + 0.5rem);
    inset-inline-end: 0;
    z-index: 1080;
    min-width: 16rem;
    max-width: calc(100vw - 1rem);
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--rd-radius-md);
    box-shadow: var(--rd-shadow-lg, 0 12px 32px rgba(0, 0, 0, 0.18));
    padding: 0.5rem;
    animation: rd-user-menu-in 140ms ease-out;
}

@keyframes rd-user-menu-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.rd-user-menu-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem;
    border-radius: var(--rd-radius-sm);
    background: var(--bs-secondary-bg);
    margin-bottom: 0.35rem;
}

.rd-user-menu-identity {
    min-width: 0;
}

.rd-user-menu-display {
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.15;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rd-user-menu-handle {
    font-size: 0.75rem;
    color: var(--bs-secondary-color, var(--bs-body-color));
    opacity: 0.75;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rd-user-menu-divider {
    height: 1px;
    background: var(--bs-border-color);
    margin: 0.35rem 0.25rem;
}

.rd-user-menu-form {
    margin: 0;
}

.rd-user-menu-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.55rem 0.7rem;
    border-radius: var(--rd-radius-sm);
    background: transparent;
    border: 0;
    color: inherit;
    text-align: start;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--rd-transition-fast), color var(--rd-transition-fast);
}

.rd-user-menu-item:hover,
.rd-user-menu-item:focus-visible {
    background: var(--bs-tertiary-bg);
    color: var(--bs-body-color);
    text-decoration: none;
    outline: none;
}

.rd-user-menu-item svg {
    flex: 0 0 auto;
    opacity: 0.75;
}

.rd-user-menu-item--danger {
    color: var(--bs-danger, #dc3545);
}

.rd-user-menu-item--danger:hover,
.rd-user-menu-item--danger:focus-visible {
    background: color-mix(in srgb, var(--bs-danger, #dc3545) 12%, transparent);
    color: var(--bs-danger, #dc3545);
}

.rd-user-menu-item--danger svg {
    opacity: 0.9;
}

@media (max-width: 480px) {
    .rd-user-menu > summary { padding: 0.2rem; }
    .rd-user-menu-panel { min-width: 14rem; }
    .rd-user-menu-name { display: none; }
}

.rd-content {
    flex: 1;
    padding: 1rem 1rem 2.5rem;
    max-width: 90rem;
    width: 100%;
    margin-inline: auto;
}

@media (min-width: 992px) {
    .rd-content {
        padding: 1.35rem 1.5rem 3rem;
    }
}

.rd-page-header {
    margin-bottom: 1.25rem;
}

.rd-page-header h1 {
    margin: 0 0 0.25rem;
    font-size: clamp(1.35rem, 2vw, 1.65rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

@media print {
    .rd-sidebar,
    .rd-sidebar-backdrop,
    .rd-topbar,
    .no-print {
        display: none !important;
    }

    .rd-app {
        display: block;
    }

    .rd-content {
        padding: 0;
        max-width: none;
    }
}