/**
 * Staff messages — modern “app” chrome (admin/messages.php only).
 * body.messages-app toggles these overrides; base rules live in admin.css.
 */

body.messages-app {
    --msg-font-mono: ui-monospace, 'Cascadia Code', 'Segoe UI Mono', SFMono-Regular, Menlo, Consolas, monospace;
    --msg-canvas: #e2e8f0;
    --msg-sidebar-bg: #f1f5f9;
    --msg-sidebar-head: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    --msg-stream-bg: linear-gradient(180deg, #eef2f7 0%, #e8edf4 50%, #f1f5f9 100%);
    --msg-bubble: #ffffff;
    --msg-bubble-me: linear-gradient(145deg, rgba(156, 28, 52, 0.14) 0%, rgba(156, 28, 52, 0.08) 100%);
    --msg-bubble-border-me: rgba(156, 28, 52, 0.28);
    --msg-radius-lg: 14px;
    --msg-radius-bubble: 16px;
}

body.messages-app .admin-main {
    background:
        radial-gradient(ellipse 100% 70% at 80% -15%, rgba(156, 28, 52, 0.05), transparent 50%),
        linear-gradient(180deg, var(--msg-canvas) 0%, #eef2f7 100%);
}

body.messages-app .admin-topbar {
    border-bottom-color: #cbd5e1;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

body.messages-app .admin-topbar__title {
    font-weight: 650;
    letter-spacing: -0.025em;
}

body.messages-app .ws-admin-messages {
    max-width: 1400px;
}

body.messages-app .ws-messages-page-title {
    font-size: 1.25rem;
    font-weight: 750;
    letter-spacing: -0.03em;
    color: #0f172a;
}

body.messages-app .ws-messages-lead {
    font-size: 0.9375rem;
    line-height: 1.55;
    max-width: 42rem;
}

body.messages-app .ws-messages-layout {
    min-height: min(72vh, 640px);
    border-radius: var(--msg-radius-lg);
    border: 1px solid #94a3b8;
    box-shadow:
        0 4px 6px -1px rgba(15, 23, 42, 0.08),
        0 10px 30px -8px rgba(15, 23, 42, 0.12);
    overflow: hidden;
    background: var(--admin-surface);
}

body.messages-app .ws-messages-sidebar {
    background: var(--msg-sidebar-bg);
    border-right-color: #cbd5e1;
}

body.messages-app .ws-messages-sidebar__head {
    padding: 16px 16px 14px;
    background: var(--msg-sidebar-head);
    border-bottom-color: #cbd5e1;
}

body.messages-app .ws-messages-sidebar__title {
    margin-bottom: 12px;
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
}

body.messages-app .ws-messages-dm-form select {
    border-radius: 10px;
    border-color: #cbd5e1;
    background: #fff;
    font-size: 0.875rem;
    padding: 9px 12px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

body.messages-app .ws-messages-dm-form .btn-small {
    border-radius: 10px;
    font-weight: 650;
}

body.messages-app .ws-messages-threadlist {
    padding: 10px;
}

body.messages-app .ws-messages-threadlist__link {
    padding: 12px 14px;
    margin-bottom: 6px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition:
        background 0.12s ease,
        border-color 0.12s ease,
        box-shadow 0.12s ease;
}

body.messages-app .ws-messages-threadlist__link:hover {
    background: rgba(255, 255, 255, 0.85);
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

body.messages-app .ws-messages-threadlist__link.is-active {
    background: #fff;
    border-color: var(--admin-accent);
    box-shadow:
        0 0 0 1px rgba(156, 28, 52, 0.15),
        0 4px 12px rgba(15, 23, 42, 0.08);
}

body.messages-app .ws-messages-threadlist__row {
    font-size: 0.875rem;
    font-weight: 650;
    letter-spacing: -0.02em;
}

body.messages-app .ws-messages-threadlist__unread {
    min-width: 1.5rem;
    padding: 3px 7px;
    font-size: 0.6875rem;
    box-shadow: 0 1px 2px rgba(156, 28, 52, 0.25);
}

body.messages-app .ws-messages-threadlist__snippet {
    margin-top: 6px;
    font-size: 0.8125rem;
    line-height: 1.35;
    color: #64748b;
}

body.messages-app .ws-messages-main {
    min-height: min(72vh, 640px);
    background: #fff;
}

body.messages-app .ws-messages-main__head {
    padding: 16px 20px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom-color: #cbd5e1;
}

body.messages-app .ws-messages-main__title {
    margin-bottom: 8px;
    font-size: 1.0625rem;
    font-weight: 750;
    letter-spacing: -0.03em;
    color: #0f172a;
}

body.messages-app .ws-messages-main__hint {
    font-size: 0.8125rem;
    line-height: 1.5;
    color: #64748b;
}

body.messages-app .ws-messages-main__audit {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #e2e8f0;
    font-size: 0.8125rem;
}

body.messages-app .ws-messages-export {
    display: inline-flex;
    align-items: center;
    padding: 4px 0;
    border-radius: 6px;
    text-decoration: none;
}

body.messages-app .ws-messages-export:hover {
    text-decoration: underline;
}

body.messages-app .ws-messages-empty {
    margin: 0;
    padding: 3rem 1.5rem;
    text-align: center;
    font-size: 0.9375rem;
    color: #64748b;
    font-weight: 500;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.messages-app .ws-messages-stream {
    padding: 18px 20px 22px;
    gap: 12px;
    background: var(--msg-stream-bg);
    scroll-behavior: smooth;
}

body.messages-app .ws-msg-line {
    max-width: min(92%, 34rem);
    padding: 12px 16px;
    border-radius: var(--msg-radius-bubble);
    background: var(--msg-bubble);
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

body.messages-app .ws-msg-line--me {
    background: var(--msg-bubble-me);
    border-color: var(--msg-bubble-border-me);
    box-shadow: 0 2px 10px rgba(156, 28, 52, 0.12);
    border-bottom-right-radius: 6px;
}

body.messages-app .ws-msg-line:not(.ws-msg-line--me) {
    border-bottom-left-radius: 6px;
}

body.messages-app .ws-msg-line__meta {
    margin-bottom: 8px;
    font-size: 0.75rem;
    gap: 8px 14px;
}

body.messages-app .ws-msg-line__who {
    font-weight: 750;
    font-size: 0.8125rem;
}

body.messages-app .ws-msg-line__time {
    font-family: var(--msg-font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 0.6875rem;
    color: #94a3b8;
}

body.messages-app .ws-msg-line__body {
    font-size: 0.9375rem;
    line-height: 1.55;
    color: #1e293b;
}

body.messages-app .ws-msg-line__refs {
    margin-top: 10px;
    padding-top: 10px;
    border-top-color: rgba(148, 163, 184, 0.35);
    font-size: 0.8125rem;
}

body.messages-app .ws-msg-line__ref a {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(156, 28, 52, 0.08);
    text-decoration: none;
    font-weight: 650;
}

body.messages-app .ws-msg-line__ref a:hover {
    background: rgba(156, 28, 52, 0.14);
    text-decoration: none;
}

body.messages-app .ws-msg-line--me .ws-msg-line__ref a {
    background: rgba(255, 255, 255, 0.55);
    color: #7f1024;
}

body.messages-app .ws-msg-line--me .ws-msg-line__ref a:hover {
    background: rgba(255, 255, 255, 0.85);
}

body.messages-app .ws-messages-compose {
    padding: 16px 20px 18px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 40%);
    border-top: 1px solid #cbd5e1;
    box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.04);
}

body.messages-app .ws-messages-compose textarea {
    border-radius: 12px;
    border: 1px solid #cbd5e1;
    font-size: 0.9375rem;
    line-height: 1.5;
    min-height: 80px;
    padding: 12px 14px;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

body.messages-app .ws-messages-compose textarea:focus {
    outline: none;
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px rgba(156, 28, 52, 0.15);
}

body.messages-app .ws-messages-compose__actions {
    margin-top: 12px;
}

body.messages-app .ws-messages-compose .btn-primary {
    border-radius: 10px;
    font-weight: 650;
    padding: 0.55rem 1.25rem;
    box-shadow: 0 2px 6px rgba(156, 28, 52, 0.25);
}

body.messages-app .ws-messages-context-banner {
    margin-bottom: 1.1rem;
    padding: 14px 18px;
    border-radius: var(--msg-radius-lg);
    border: 1px solid #c7d2fe;
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.08);
    font-size: 0.9375rem;
}

body.messages-app .ws-messages-context-banner strong {
    color: #3730a3;
}

body.messages-app .ws-messages-context-banner a {
    font-weight: 650;
    color: var(--admin-accent);
}

body.messages-app .ws-messages-context-banner__hint {
    color: #4c1d95;
    opacity: 0.85;
}

body.messages-app .ws-messages-alert {
    border-radius: 10px;
}

body.messages-app .dashboard-section {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--msg-radius-lg);
    padding: 1.25rem 1.5rem;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}

@media (max-width: 900px) {
    body.messages-app .ws-messages-layout {
        border-radius: 12px;
        min-height: 60vh;
    }

    body.messages-app .ws-messages-sidebar {
        max-height: 260px;
    }

    body.messages-app .ws-messages-main {
        min-height: 50vh;
    }
}