/* Application shell: header, sidebar rail, main column, error boundary and the
   responsive rules that fold the rail and drawer. Loaded after theme.css. */

/* ===== Header ===== */
.app-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: var(--m365-header-height);
    color: var(--m365-text);
    padding: 0 1rem;
    border-bottom: 1px solid var(--m365-card-border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

/* A backdrop-filter on .app-header itself would contain the fixed dialog scrims rendered inside it. */
.app-header::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--m365-chrome);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.app-header .header-left {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex: none;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--m365-surface);
    border: 1px solid var(--m365-btn-line);
    color: var(--m365-text-muted);
    cursor: pointer;
    width: 34px;
    height: 34px;
    flex: none;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s, transform 0.15s;
}

.icon-btn:hover {
    background: var(--m365-surface-alt);
    color: var(--m365-primary-text);
}

.icon-btn:active {
    transform: scale(0.92);
}

.theme-toggle svg {
    transition: transform 0.35s ease;
}

.theme-toggle:hover svg {
    transform: rotate(20deg);
}

.app-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    padding: 0.25rem 0.25rem;
    border: 0;
    border-radius: 6px;
    background: none;
    font: inherit;
    color: inherit;
    transition: background 0.15s;
    -webkit-user-select: none;
    user-select: none;
}

.app-title:hover {
    background: var(--m365-surface-alt);
}

.app-title-logo {
    height: 24px;
    width: auto;
}

.app-title-rule {
    flex: none;
    width: 1px;
    height: 22px;
    background: var(--m365-border);
}

.app-title-text {
    font-weight: 700;
    font-size: 0.94rem;
    letter-spacing: 0.01em;
    white-space: nowrap;
    color: var(--m365-text);
}

.app-header .header-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ===== Layout Shell ===== */
.app-shell {
    display: flex;
    height: 100vh;
    padding-top: var(--m365-header-height);
}

.gate-shell {
    display: flex;
    min-height: 100vh;
    padding-top: var(--m365-header-height);
}

.app-main.bare-main {
    padding-top: 8px;
}

.bare-main .app-main-inner {
    max-width: 1360px;
}

.bare-toolbar {
    display: flex;
    justify-content: flex-end;
}

/* ===== Sidebar Navigation ===== */
.app-sidebar {
    width: var(--m365-nav-width);
    min-width: var(--m365-nav-width);
    background: var(--m365-nav-glass);
    color: var(--m365-nav-text);
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--m365-card-border);
    transition: width 0.22s ease, min-width 0.22s ease;
    display: flex;
    flex-direction: column;
}

/* Collapsed is an icon rail on desktop, not a hidden panel - the drawer behaviour
   only kicks in below 960px, where the rail would eat the whole viewport. */
.app-sidebar.collapsed {
    width: var(--m365-rail-width);
    min-width: var(--m365-rail-width);
}

.app-sidebar.collapsed .nav-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.app-sidebar.collapsed .nav-plan {
    display: none;
}

.app-sidebar.collapsed .nav-section-title {
    visibility: hidden;
}

.app-sidebar.collapsed .nav-link .nav-badge {
    position: absolute;
    top: 1px;
    left: 25px;
    min-width: 17px;
    height: 15px;
    padding: 0 4px;
    font-size: 0.56rem;
    box-shadow: 0 0 0 1.5px var(--m365-nav-bg);
}

.app-sidebar .nav-section-title {
    font-size: var(--t-label);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--m365-nav-label);
    padding: 1.1rem 1rem 0.4rem;
    margin: 0;
    flex: none;
    white-space: nowrap;
    overflow: hidden;
}

.app-sidebar nav {
    padding: 0.1rem 0 0.3rem;
    flex: none;
}

.app-sidebar .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 40px;
    padding: 0.5rem 0.625rem;
    color: var(--m365-nav-text);
    text-decoration: none;
    font-size: 0.81rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: 8px;
    margin: 2px 0.56rem;
    transition: background 0.15s, color 0.15s, transform 0.15s;
}

.app-sidebar .nav-link::before {
    content: "";
    position: absolute;
    left: -0.6rem;
    top: 18%;
    height: 64%;
    width: 3px;
    border-radius: 3px;
    background: var(--m365-primary-light);
    opacity: 0;
    transform: scaleY(0.3);
    transition: opacity 0.15s, transform 0.15s;
}

.app-sidebar .nav-link:hover {
    background: var(--m365-nav-sel);
    color: var(--m365-nav-strong);
    transform: translateX(2px);
}

.app-sidebar .nav-link.active {
    background: var(--m365-nav-sel);
    border-color: var(--m365-nav-sel-border);
    color: var(--m365-nav-strong);
    font-weight: 600;
}

.app-sidebar .nav-link.active::before {
    opacity: 1;
    transform: scaleY(1);
    background: var(--m365-primary);
}

.app-sidebar .nav-link .nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    flex-shrink: 0;
}

.app-sidebar .nav-link .nav-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-sidebar .nav-link .nav-badge {
    flex: none;
    min-width: 20px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--m365-danger-fill);
    color: #fff;
    font-size: 0.63rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Locked features stay visible with a padlock rather than disappearing: hiding them produces
   "where did Drift go?" tickets and removes the upgrade prompt from where it is wanted. */
.app-sidebar .nav-link .nav-lock {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    color: var(--m365-text-muted);
    opacity: 0.75;
}

.app-sidebar .nav-link .nav-lock svg {
    display: block;
}

/* Plan usage sits at the foot of the rail and disappears with the labels. */
.nav-plan {
    flex: none;
    margin-top: auto;
    padding: 0.875rem 1rem 0;
    overflow: hidden;
}

.nav-plan-inner {
    border-top: 1px solid var(--m365-nav-rule);
    padding-top: 0.75rem;
}

.nav-plan-label {
    font-size: var(--t-label);
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--m365-nav-label);
    margin-bottom: 0.44rem;
}

.nav-plan-track {
    height: 5px;
    border-radius: 3px;
    background: var(--m365-nav-track);
    overflow: hidden;
}

.nav-plan-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--m365-primary);
}

.nav-plan-meta {
    font-size: 0.66rem;
    color: var(--m365-nav-label);
    margin-top: 0.44rem;
    white-space: nowrap;
}

/* ===== Main Content ===== */
.app-main {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    scrollbar-gutter: stable;
    padding: 18px 28px 44px;
}

.app-main-inner {
    max-width: 1600px;
    margin: 0 auto;
}

.app-main-inner.is-narrow {
    max-width: 640px;
}

.app-main h1 {
    font-size: var(--t-title);
    font-weight: 800;
    color: var(--m365-text);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.app-breadcrumbs {
    max-width: 1600px;
    margin: 0 auto 14px;
    color: var(--m365-text-soft);
    font-size: 12px;
    font-weight: 500;
}

.app-breadcrumbs ol {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 7px;
    padding: 4px 11px;
    margin: 0;
    list-style: none;
    border: 1px solid var(--m365-chip-line);
    border-radius: 999px;
    background: var(--m365-surface);
    box-shadow: 0 1px 2px rgba(8, 12, 34, 0.06);
}

.app-breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin-left: 7px;
}

.app-breadcrumbs a {
    color: inherit;
    text-decoration: none;
}

.app-breadcrumbs a:hover {
    color: var(--m365-primary-text);
    text-decoration: underline;
}

.app-breadcrumbs [aria-current="page"] {
    color: var(--m365-text);
    font-weight: 600;
}

.shared-empty-state {
    display: grid;
    justify-items: center;
    gap: 0.65rem;
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--m365-text-muted);
    background: var(--m365-card);
    border: 1px dashed var(--m365-card-border);
    border-radius: 16px;
    box-shadow: var(--m365-shadow);
}

.shared-empty-state h2 {
    margin: 0;
    color: var(--m365-text);
    font-size: 1.1rem;
}

.shared-empty-state p {
    max-width: 36rem;
    margin: 0;
}

.nav-scrim {
    display: none;
}

@keyframes m365-fade-in {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Every page is wrapped in this, so its fill mode decides whether dialogs work.
   `both` keeps the final keyframe applied for good, and that keyframe sets
   `transform: translateY(0)` - a transform, not `none`, which makes this element a
   containing block for `position: fixed` descendants. A dialog scrim's `inset: 0` then
   resolves against the page rather than the viewport: on a long page the overlay covers
   it, but the panel is centred somewhere below the fold and looks like it never opened.
   `backwards` keeps the fade-in and lets the transform fall away once it has run. */
.page-enter {
    animation: m365-fade-in 0.28s ease backwards;
}

/* ===== Connection banner =====
   blazor.web.js and app-shell.js show it with an inline display style. */
.connection-banner {
    display: none;
    position: fixed;
    left: 50%;
    bottom: 18px;
    z-index: 1400;
    width: min(560px, calc(100vw - 32px));
    transform: translateX(-50%);
    border-radius: 9px;
    background: var(--m365-surface);
    box-shadow: var(--m365-shadow-lg);
}

/* ===== Error box ===== */
.error-box {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 1.1rem 1.25rem;
    border-radius: 10px;
    background: var(--m365-danger-tint);
    border: 1px solid var(--m365-danger-border);
    border-left: 4px solid var(--m365-danger);
    margin-bottom: 1rem;
}

.error-box-icon {
    font-size: 1.3rem;
    line-height: 1;
    flex-shrink: 0;
}

.error-box-body {
    flex: 1;
    min-width: 0;
}

.error-box-body strong {
    display: block;
    color: var(--m365-danger-text);
    font-size: 0.98rem;
    margin-bottom: 0.3rem;
}

.error-box-detail {
    margin: 0 0 0.75rem;
    font-size: 0.85rem;
    color: var(--m365-text-muted);
    line-height: 1.5;
}

.error-box-detail ul {
    margin: 0;
    padding-left: 1.1rem;
}

/* ===== User Flyout ===== */
.user-menu {
    position: relative;
    flex: none;
}

.user-flyout {
    position: absolute;
    top: 42px;
    right: 0;
    z-index: 60;
    width: 260px;
    padding: 6px;
    border: 1px solid var(--m365-card-border);
    border-radius: 12px;
    background: var(--m365-nav-bg);
    box-shadow: var(--m365-shadow-lg);
}

.user-flyout-head {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 10px 12px;
    margin: 0 -6px 6px;
    border-bottom: 1px solid var(--m365-card-border);
}

.user-menu-avatar,
.user-flyout-avatar {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--m365-btn-bg);
    color: var(--m365-btn-fg);
}

.user-menu-avatar {
    width: 24px;
    height: 24px;
    font-size: 0.63rem;
    font-weight: 700;
}

.user-flyout-avatar {
    width: 34px;
    height: 34px;
    font-size: 12px;
    font-weight: 800;
}

.user-flyout-name {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--m365-text);
    overflow-wrap: anywhere;
}

.user-flyout-email {
    display: block;
    font-size: 11.5px;
    color: var(--m365-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-flyout-role {
    display: block;
    margin-top: 2px;
    font-size: 11px;
    color: var(--m365-text-muted);
}

.user-flyout-line {
    margin: 0 0 6px;
    padding: 0 8px;
    font-size: 11px;
    color: var(--m365-text-muted);
}

.user-flyout-news {
    margin: 0 0 8px;
    padding: 8px;
    border-top: 1px solid var(--m365-card-border);
}

.user-flyout-item {
    display: flex;
    align-items: center;
    gap: 9px;
    width: 100%;
    min-height: 36px;
    padding: 0 8px;
    border: none;
    border-radius: 8px;
    background: transparent;
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    text-align: left;
    text-decoration: none;
    color: var(--m365-text);
    cursor: pointer;
}

.user-flyout-item:hover {
    background: var(--m365-surface-alt);
    color: var(--m365-text);
}

.user-flyout-item.is-danger,
.user-flyout-item.is-danger:hover {
    color: var(--m365-danger-text);
}

.user-flyout-item svg {
    flex: none;
}

.user-flyout-item:not(:has(> svg)) {
    padding-left: 32px;
}

.user-flyout hr {
    border: none;
    border-top: 1px solid var(--m365-card-border);
    margin: 8px 0;
    opacity: 1;
}

/* ===== Scrollbar ===== */
.app-sidebar::-webkit-scrollbar {
    width: 6px;
}

.app-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.app-sidebar::-webkit-scrollbar-thumb {
    background: var(--m365-nav-track);
    border-radius: 3px;
}

.app-main::-webkit-scrollbar {
    width: 8px;
}

.app-main::-webkit-scrollbar-thumb {
    background: var(--m365-border);
    border-radius: 4px;
}

/* ===== Responsive shell (rail, drawer, header) ===== */
@media (max-width: 1279px) and (min-width: 961px) {
    .app-sidebar,
    .app-sidebar.is-open {
        width: var(--m365-rail-width);
        min-width: var(--m365-rail-width);
    }

    .app-sidebar .nav-label {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .app-sidebar .nav-plan {
        display: none;
    }

    .app-sidebar .nav-section-title {
        visibility: hidden;
    }

    .app-sidebar .nav-link .nav-badge {
        position: absolute;
        top: 1px;
        left: 25px;
        min-width: 17px;
        height: 15px;
        padding: 0 4px;
        font-size: 0.56rem;
        box-shadow: 0 0 0 1.5px var(--m365-nav-bg);
    }
}

/* Header extras give way before the search input is allowed to shrink. */
@media (max-width: 1180px) {
    .header-extra {
        display: none !important;
    }
}

@media (max-width: 960px) {
    .app-main {
        padding: 1rem 1rem 2rem;
    }

    .app-header {
        gap: 0.5rem;
    }

    .app-sidebar.collapsed .nav-plan,
    .app-sidebar.is-open .nav-plan,
    .app-sidebar.is-open .nav-label,
    .app-sidebar.is-open .nav-section-title {
        display: block;
        position: static;
        width: auto;
        height: auto;
        clip: auto;
        margin: revert;
        visibility: visible;
    }

    .app-sidebar.is-open .nav-link .nav-badge {
        position: static;
        min-width: 20px;
        height: 18px;
        padding: 0 5px;
        font-size: 0.63rem;
        box-shadow: none;
    }

    .app-sidebar,
    .app-sidebar.collapsed {
        position: fixed;
        top: var(--m365-header-height);
        bottom: 0;
        left: 0;
        z-index: 1100;
        width: min(88vw, 320px);
        min-width: min(88vw, 320px);
        overflow-y: auto;
        background: var(--m365-nav-bg);
        transform: translateX(-105%);
        transition: transform 0.22s ease;
    }

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

    .nav-scrim {
        display: block;
        position: fixed;
        inset: var(--m365-header-height) 0 0;
        z-index: 1050;
        width: 100%;
        border: 0;
        background: rgba(0, 0, 0, 0.36);
        cursor: pointer;
    }
}

@media (prefers-reduced-motion: reduce) {
    .app-sidebar,
    .app-sidebar.collapsed,
    .page-enter {
        transition: none;
        animation: none;
    }
}