/* UX-002: responsive Admin shell only. Existing Admin feature styling remains legacy. */
body.hp-admin-shell {
    background: var(--hp-bg);
    color: var(--hp-text);
    display: block;
    min-height: 100vh;
}

.hp-admin-sidebar {
    background: var(--hp-green-900);
    color: var(--hp-white);
    display: flex;
    flex-direction: column;
    height: 100dvh;
    inset: 0 auto 0 0;
    overflow: hidden;
    position: fixed;
    width: var(--hp-sidebar-width);
    z-index: var(--hp-z-backdrop);
}

.hp-admin-sidebar__brand {
    align-items: center;
    border-bottom: 1px solid color-mix(in srgb, var(--hp-white) 14%, transparent);
    display: flex;
    gap: var(--hp-space-3);
    min-height: 72px;
    padding: var(--hp-space-4) var(--hp-space-5);
}

.hp-admin-sidebar__brand-mark {
    align-items: center;
    background: var(--hp-sand-100);
    border-radius: var(--hp-radius-s);
    color: var(--hp-green-900);
    display: inline-flex;
    flex: 0 0 auto;
    font-weight: 800;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.hp-admin-sidebar__brand-copy {
    display: grid;
    line-height: 1.15;
}

.hp-admin-sidebar__brand-copy strong {
    font-size: 1.05rem;
    letter-spacing: 0.01em;
}

.hp-admin-sidebar__brand-copy span {
    color: color-mix(in srgb, var(--hp-white) 68%, transparent);
    font-size: 0.72rem;
}

.hp-admin-nav {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: var(--hp-space-3) var(--hp-space-3) var(--hp-space-6);
    scrollbar-width: none;
}

.hp-admin-nav::-webkit-scrollbar {
    display: none;
    height: 0;
    width: 0;
}

.hp-admin-nav__group {
    display: grid;
    gap: var(--hp-space-1);
    margin: 0 0 var(--hp-space-4);
}

.hp-admin-nav__label {
    color: color-mix(in srgb, var(--hp-white) 58%, transparent);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin: 0;
    padding: var(--hp-space-2) var(--hp-space-3) var(--hp-space-1);
    text-transform: uppercase;
}

.hp-admin-nav__destination {
    display: grid;
    gap: var(--hp-space-1);
}

.hp-admin-nav__item,
.hp-admin-nav__subnavigation .nav-item,
.hp-admin-sidebar__action {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 0;
    border-radius: var(--hp-radius-s);
    color: color-mix(in srgb, var(--hp-white) 82%, transparent);
    cursor: pointer;
    display: flex;
    font: inherit;
    gap: var(--hp-space-3);
    min-height: var(--hp-touch-target);
    padding: var(--hp-space-2) var(--hp-space-3);
    text-align: left;
    text-decoration: none;
    transition: background-color var(--hp-transition-fast), color var(--hp-transition-fast);
    width: 100%;
}

.hp-admin-nav__item:hover,
.hp-admin-nav__subnavigation .nav-item:hover,
.hp-admin-sidebar__action:hover {
    background: color-mix(in srgb, var(--hp-white) 10%, transparent);
    color: var(--hp-white);
}

.hp-admin-nav__item.active,
.hp-admin-nav__item[aria-current="page"],
.hp-admin-nav__subnavigation .nav-item.active {
    background: var(--hp-sand-100);
    color: var(--hp-green-900);
    font-weight: 700;
}

.hp-admin-nav__item:focus-visible,
.hp-admin-nav__subnavigation .nav-item:focus-visible,
.hp-admin-sidebar__action:focus-visible {
    outline: 3px solid var(--hp-blue-400);
    outline-offset: 1px;
}

.hp-admin-nav__item i,
.hp-admin-sidebar__action i {
    flex: 0 0 18px;
    text-align: center;
}

.hp-admin-nav__badge {
    background: color-mix(in srgb, var(--hp-white) 14%, transparent);
    border-radius: 999px;
    font-size: 0.6rem;
    font-weight: 700;
    margin-inline-start: auto;
    padding: 3px 6px;
}

.hp-admin-nav__item.active .hp-admin-nav__badge {
    background: var(--hp-beige-300);
}

.hp-admin-nav__subnavigation {
    border-inline-start: 1px solid color-mix(in srgb, var(--hp-white) 20%, transparent);
    display: grid;
    gap: var(--hp-space-1);
    margin: 0 0 var(--hp-space-2) var(--hp-space-5);
    padding-inline-start: var(--hp-space-2);
}

.hp-admin-nav__subnavigation:empty {
    display: none;
}

.hp-admin-nav__subnavigation .nav-item {
    align-items: flex-start;
    box-sizing: border-box;
    flex-direction: column;
    font-size: 0.78rem;
    gap: 2px;
    min-height: 36px;
    min-width: 0;
    overflow-wrap: anywhere;
    padding: var(--hp-space-2);
}

.hp-admin-sidebar__profile {
    background: color-mix(in srgb, var(--hp-green-900) 88%, var(--hp-text));
    border-top: 1px solid color-mix(in srgb, var(--hp-white) 14%, transparent);
    display: grid;
    gap: var(--hp-space-3);
    padding: var(--hp-space-4);
}

.hp-admin-sidebar__identity {
    min-width: 0;
}

.hp-admin-sidebar__identity strong,
.hp-admin-sidebar__identity span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hp-admin-sidebar__identity strong {
    font-size: 0.875rem;
}

.hp-admin-sidebar__identity span {
    color: color-mix(in srgb, var(--hp-white) 68%, transparent);
    font-size: 0.72rem;
    margin-top: 2px;
}

.hp-admin-sidebar__actions {
    display: grid;
    gap: var(--hp-space-1);
}

.hp-admin-sidebar__action {
    font-size: 0.78rem;
    min-height: 36px;
}

.hp-admin-main {
    display: flex;
    flex-direction: column;
    margin-inline-start: var(--hp-sidebar-width);
    min-height: 100vh;
    min-width: 0;
}

.hp-admin-topbar {
    align-items: center;
    background: var(--hp-surface);
    border-bottom: 1px solid var(--hp-border);
    display: flex;
    gap: var(--hp-space-3);
    justify-content: space-between;
    min-height: 72px;
    padding: 0 var(--hp-space-8);
    position: sticky;
    top: 0;
    z-index: var(--hp-z-sticky);
}

.hp-admin-topbar__leading {
    align-items: center;
    display: flex;
    gap: var(--hp-space-3);
    min-width: 0;
}

.hp-admin-topbar__title {
    color: var(--hp-green-900);
    font-size: 1rem;
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hp-admin-nav-trigger {
    align-items: center;
    appearance: none;
    background: var(--hp-surface);
    border: 1px solid var(--hp-border);
    border-radius: var(--hp-radius-s);
    color: var(--hp-green-900);
    cursor: pointer;
    display: none;
    height: var(--hp-touch-target);
    justify-content: center;
    width: var(--hp-touch-target);
}

.hp-admin-nav-trigger:focus-visible {
    outline: 3px solid var(--hp-blue-400);
    outline-offset: 2px;
}

.hp-admin-main .main-content {
    box-sizing: border-box;
    margin-inline: auto;
    max-width: var(--hp-content-max-width);
    padding: var(--hp-space-8);
    width: 100%;
}

.hp-admin-main .sticky-filter-bar {
    top: 72px;
}

.hp-admin-nav-backdrop {
    background: var(--hp-overlay);
    inset: 0;
    opacity: 0;
    pointer-events: none;
    position: fixed;
    transition: opacity var(--hp-transition-fast);
    visibility: hidden;
    z-index: calc(var(--hp-z-backdrop) - 1);
}

.hp-admin-coming-soon {
    min-height: calc(100dvh - 72px - (2 * var(--hp-space-8)));
}

.hp-admin-coming-soon__panel {
    background: var(--hp-surface);
    border: 1px solid var(--hp-border);
    border-radius: var(--hp-radius-l);
    box-shadow: var(--hp-shadow-1);
    margin-inline: auto;
    max-width: 42rem;
}

.hp-admin-coming-soon__panel h1,
.hp-admin-coming-soon__panel p {
    margin: 0;
}

.hp-admin-coming-soon__panel p {
    max-width: 32rem;
}

@media (max-width: 1199px) {
    .hp-admin-sidebar {
        box-shadow: var(--hp-shadow-1);
        transform: translateX(-100%);
        transition: transform var(--hp-transition-fast);
    }

    .hp-admin-main {
        margin-inline-start: 0;
    }

    .hp-admin-nav-trigger {
        display: inline-flex;
    }

    .is-admin-nav-open {
        overflow: hidden;
    }

    .is-admin-nav-open .hp-admin-sidebar {
        transform: translateX(0);
    }

    .is-admin-nav-open .hp-admin-nav-backdrop {
        opacity: 1;
        pointer-events: auto;
        visibility: visible;
    }
}

@media (max-width: 767px) {
    .hp-admin-sidebar {
        max-width: calc(100vw - var(--hp-space-8));
    }

    .hp-admin-topbar {
        padding: 0 var(--hp-space-4);
    }

    .hp-admin-main .main-content {
        padding: var(--hp-space-4);
    }

    .hp-admin-coming-soon {
        min-height: calc(100dvh - 72px - (2 * var(--hp-space-4)));
    }
}