/* Shared shell and component layer. All colors resolve through main.css tokens. */

:focus-visible {
    outline: 2px solid var(--color-focus-outline);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--color-focus-ring);
}

body[data-page]:not([data-page="login"]) .top-nav { display: none; }

.ui-skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 12000;
    padding: 0.65rem 0.9rem;
    border-radius: 0.6rem;
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-160%);
}

.ui-skip-link:focus { transform: translateY(0); }

body.ui-app-shell {
    --ui-sidebar-width: 17rem;
    display: grid;
    grid-template-columns: var(--ui-sidebar-width) minmax(0, 1fr);
    grid-template-rows: 4.5rem minmax(0, 1fr);
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    padding: 0;
    overflow: hidden;
    background: var(--color-bg-canvas);
}

body.ui-app-shell.ui-sidebar-collapsed { --ui-sidebar-width: 5rem; }
html[data-ui-sidebar-collapsed="true"] body.ui-app-shell { --ui-sidebar-width: 5rem; }

html:has(body.ui-app-shell) { height: 100%; overflow: hidden; }

.ui-sidebar {
    position: sticky;
    top: 0;
    grid-column: 1;
    grid-row: 1 / -1;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-nav-bg);
    color: var(--color-nav-text);
    z-index: 200;
}

.ui-sidebar__brand {
    flex: 0 0 4.5rem;
    height: 4.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0 1rem;
    border-bottom: 1px solid var(--color-border-default);
}

.ui-sidebar__mark {
    flex: 0 0 2.35rem;
    width: 2.35rem;
    height: 2.35rem;
    display: grid;
    place-items: center;
    border-radius: 0.75rem;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-size: 1.25rem;
    font-weight: 800;
}

.ui-sidebar__brand-text { display: grid; min-width: 0; line-height: 1.1; color: var(--color-nav-text-active); }
.ui-sidebar__brand-text small { margin-top: 0.25rem; color: var(--color-nav-text); font-size: 0.68rem; white-space: nowrap; }
.ui-sidebar__collapse { margin-left: auto; color: var(--color-nav-text); }
.ui-sidebar__nav {
    flex: 1 1 auto;
    min-height: 0;
    padding: 1rem 0.65rem 2rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.ui-sidebar__group { padding: 1rem 0.7rem 0.45rem; color: var(--color-nav-text); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; white-space: nowrap; }
.ui-sidebar__link {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 0.75rem;
    border-radius: 0.65rem;
    color: var(--color-nav-text);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
}
.ui-sidebar__link:hover { background: var(--color-nav-surface); color: var(--color-nav-text-active); }
.ui-sidebar__link.is-active { background: var(--color-nav-active); color: var(--color-nav-active-text); }
.ui-sidebar__link > svg { flex: 0 0 1.2rem; width: 1.2rem; height: 1.2rem; }

.ui-sidebar-collapsed .ui-sidebar__brand-text,
.ui-sidebar-collapsed .ui-sidebar__group,
.ui-sidebar-collapsed .ui-sidebar__link span:last-child { display: none; }
.ui-sidebar-collapsed .ui-sidebar__brand { justify-content: center; padding-inline: 0.5rem; }
.ui-sidebar-collapsed .ui-sidebar__mark { display: none; }
.ui-sidebar-collapsed .ui-sidebar__collapse { margin-left: 0; }
.ui-sidebar-collapsed .ui-sidebar__collapse svg { transform: rotate(180deg); }
.ui-sidebar-collapsed .ui-sidebar__link { justify-content: center; }

.ui-topbar {
    position: sticky;
    top: 0;
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
    height: 4.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 1.5rem;
    background: var(--color-nav-bg);
    border-bottom: 1px solid var(--color-border-default);
    backdrop-filter: blur(14px);
    z-index: 150;
}
.ui-topbar__leading, .ui-topbar__actions { display: flex; align-items: center; gap: 0.75rem; }
.ui-topbar__leading > div { display: grid; line-height: 1.2; }
.ui-topbar__eyebrow { color: var(--color-text-muted); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.ui-topbar__leading strong { color: var(--color-text-primary); font-size: 0.98rem; }
.ui-icon-button.ui-menu-button { display: none; }

.ui-icon-button {
    width: 2.5rem;
    height: 2.5rem;
    display: inline-grid;
    place-items: center;
    padding: 0;
    border: 1px solid var(--color-border-default);
    border-radius: 0.7rem;
    background: var(--color-bg-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    text-decoration: none;
}
.ui-icon-button:hover { background: var(--color-bg-hover); border-color: var(--color-border-interactive); color: var(--color-primary); }
.ui-icon-button svg { width: 1.2rem; height: 1.2rem; display: block; }
.ui-icon-button [data-theme-icon] { display: grid; place-items: center; }

.ui-profile { position: relative; }
.ui-profile__trigger {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
    border: 1px solid var(--color-border-default);
    border-radius: 0.8rem;
    background: var(--color-bg-surface);
    color: var(--color-text-primary);
    cursor: pointer;
    overflow: hidden;
}
.ui-profile__trigger > svg { display: none; }
.ui-avatar { align-self: stretch; flex: 0 0 100%; width: 100%; height: 100%; display: grid; place-items: center; border-radius: inherit; background: var(--color-primary-subtle); color: var(--color-primary); font-size: 0.76rem; font-weight: 800; }
.ui-profile__summary { display: none; }
.ui-profile__summary strong { max-width: 12rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.78rem; }
.ui-profile__summary small { max-width: 12rem; overflow: hidden; text-overflow: ellipsis; color: var(--color-text-muted); font-size: 0.67rem; }
.ui-profile__menu { position: absolute; top: calc(100% + 0.5rem); right: 0; min-width: 13rem; padding: 0.45rem; border: 1px solid var(--color-border-default); border-radius: 0.75rem; background: var(--color-bg-elevated); box-shadow: var(--shadow-lg); }
.ui-profile__menu-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 0.75rem; }
.ui-profile__menu-identity { display: grid; min-width: 0; gap: 0.2rem; padding: 0.45rem 0.5rem; }
.ui-profile__menu-identity strong { overflow: hidden; color: var(--color-text-primary); font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.ui-profile__menu-identity small { overflow: hidden; color: var(--color-text-muted); font-size: 0.7rem; text-overflow: ellipsis; white-space: nowrap; }
.ui-profile__logout-icon {
    width: 2rem;
    height: 2rem;
    display: inline-grid;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--color-danger-hover);
    border-radius: 0.375rem;
    background: transparent;
    color: var(--color-danger-hover);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.ui-profile__logout-icon svg { width: 1rem; height: 1rem; display: block; }
.ui-profile__logout-icon:hover {
    border-color: var(--color-danger-hover);
    background: color-mix(in srgb, var(--color-danger-hover) 18%, transparent);
    color: var(--color-danger-hover);
}

.ui-page {
    grid-column: 2;
    grid-row: 2;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    max-width: 100%;
    padding: 1.5rem;
    margin: 0;
    overflow: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.app-layout.ui-page { display: block; height: 100%; }
.ui-page > header { margin-bottom: 1.5rem; }
.ui-page > header h1 { font-size: clamp(1.45rem, 2.3vw, 2rem); letter-spacing: -0.025em; }
body[data-page] .ui-page > header.ui-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
body[data-page] .ui-page > header.ui-page-header h1 {
    margin: 0;
    color: var(--primary);
    font-size: clamp(1.45rem, 2.3vw, 2rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
    text-align: left;
}
.ui-page-header__copy {
    display: grid;
    min-width: 0;
    gap: 0.35rem;
}
body[data-page] .ui-page-header__subtitle {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.84rem;
    font-weight: 400;
    line-height: 1.5;
}
.ui-page .main-content { min-width: 0; }
.ui-shell-overlay { display: none; }
.ui-stack { display: flex; flex-direction: column; gap: 1rem; }
.ui-cost { color: var(--color-success); font-weight: 700; }

/* Public component contracts for new and progressively migrated markup. */
.ui-button {
    min-height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.55rem 0.9rem;
    border: 1px solid transparent;
    border-radius: 0.6rem;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font: inherit;
    font-size: 0.86rem;
    font-weight: 700;
    cursor: pointer;
}
.ui-button:hover { background: var(--color-primary-hover); }
.ui-button:active { background: var(--color-primary-active); }
.ui-button--secondary { background: var(--color-secondary); color: var(--color-on-secondary); }
.ui-button--secondary:hover { background: var(--color-secondary-hover); }
.ui-button--ghost { border-color: var(--color-border-default); background: var(--color-bg-surface); color: var(--color-text-secondary); }
.ui-button--ghost:hover { border-color: var(--color-border-interactive); background: var(--color-bg-hover); color: var(--color-primary); }
.ui-button--danger { background: var(--color-danger); color: var(--color-on-danger); }
.ui-button--danger:hover { background: var(--color-danger-hover); }
.ui-button:disabled, .ui-icon-button:disabled { opacity: var(--opacity-disabled); cursor: not-allowed; }

.ui-card, .ui-kpi {
    border: 1px solid var(--color-border-default);
    border-radius: 0.85rem;
    background: var(--color-bg-surface);
    box-shadow: var(--shadow-sm);
}
.ui-card { padding: 1.25rem; }
.ui-kpi { padding: 1rem; }
.ui-kpi__label { color: var(--color-text-muted); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.ui-kpi__value { margin-top: 0.35rem; color: var(--color-text-primary); font-size: 1.65rem; font-weight: 800; }

.ui-field { display: grid; gap: 0.4rem; }
.ui-field > label { color: var(--color-text-secondary); font-size: 0.78rem; font-weight: 700; }
.ui-field > input, .ui-field > select, .ui-field > textarea {
    width: 100%;
    min-height: 2.5rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--color-input-border);
    border-radius: 0.6rem;
    background: var(--color-input-bg);
    color: var(--color-text-primary);
    font: inherit;
}
.ui-field > input:focus, .ui-field > select:focus, .ui-field > textarea:focus { border-color: var(--color-border-interactive); box-shadow: 0 0 0 3px var(--color-focus-ring); outline: 0; }

.ui-table-wrapper { max-width: 100%; overflow: auto; border: 1px solid var(--color-border-default); border-radius: 0.75rem; }
.ui-table { width: 100%; border-collapse: collapse; }
.ui-table th, .ui-table td { padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--color-border-default); text-align: left; }
.ui-table th { background: var(--color-table-header); color: var(--color-text-secondary); font-size: 0.72rem; text-transform: uppercase; }
.ui-table tbody tr:hover { background: var(--color-bg-hover); }

.ui-tabs { display: flex; gap: 0.35rem; border-bottom: 1px solid var(--color-border-default); }
.ui-tabs [role="tab"] { padding: 0.65rem 0.85rem; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--color-text-secondary); cursor: pointer; }
.ui-tabs [role="tab"][aria-selected="true"] { border-bottom-color: var(--color-primary); color: var(--color-primary); }

.ui-badge { display: inline-flex; align-items: center; padding: 0.22rem 0.5rem; border: 1px solid var(--color-border-default); border-radius: 999px; background: var(--color-bg-surface-secondary); color: var(--color-text-secondary); font-size: 0.7rem; font-weight: 700; }
.ui-badge--success { border-color: var(--color-success-border); background: var(--color-success-bg); color: var(--color-success-text); }
.ui-badge--warning { border-color: var(--color-warning-border); background: var(--color-warning-bg); color: var(--color-warning-text); }
.ui-badge--danger { border-color: var(--color-danger-border); background: var(--color-danger-bg); color: var(--color-danger-text); }

.ui-dialog { width: min(34rem, calc(100vw - 2rem)); max-height: calc(100vh - 2rem); padding: 0; border: 1px solid var(--color-border-default); border-radius: 0.9rem; background: var(--color-dialog-bg); color: var(--color-text-primary); box-shadow: var(--shadow-lg); }
.ui-dialog::backdrop { background: var(--color-overlay); backdrop-filter: blur(4px); }
.ui-dialog__header, .ui-dialog__body, .ui-dialog__footer { padding: 1rem 1.25rem; }
.ui-dialog__header { border-bottom: 1px solid var(--color-border-default); }
.ui-dialog__footer { display: flex; justify-content: flex-end; gap: 0.5rem; border-top: 1px solid var(--color-border-default); }

.ui-pagination { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding-top: 1rem; }
.ui-pagination__actions { display: flex; gap: 0.35rem; }

/* Shared component normalization, intentionally scoped to migrated pages. */
.ui-page .card, .ui-page .section, .ui-page .chart-card, .ui-page .context-card {
    border: 1px solid var(--color-border-default);
    background: var(--color-bg-surface);
    box-shadow: var(--shadow-sm);
}
.ui-page .card:hover, .ui-page .chart-card:hover { box-shadow: var(--shadow-md); }
.ui-page .btn, .ui-page button:not(.ui-icon-button):not(.ui-profile__trigger) { border-radius: 0.6rem; }
.ui-page input, .ui-page textarea, .ui-page select { background-color: var(--color-input-bg); color: var(--color-text-primary); border-color: var(--color-input-border); }
.ui-page input:focus, .ui-page textarea:focus, .ui-page select:focus { border-color: var(--color-border-interactive); box-shadow: 0 0 0 3px var(--color-focus-ring); outline: 0; }
.ui-page table { width: 100%; }
.ui-page th { background: var(--color-table-header); color: var(--color-text-secondary); }
.ui-page tbody tr:hover td { background: var(--color-bg-hover); }
.ui-page .tab { color: var(--color-text-secondary); background: transparent; }
.ui-page .tab:hover { background: var(--color-bg-hover); color: var(--color-primary); }
.ui-page .tab.active { background: var(--color-primary); color: var(--color-on-primary); }
.ui-page .pagination button.active { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.ui-page .btn-primary, .ui-page .btn-success { background: var(--color-primary); color: var(--color-on-primary); }
.ui-page .btn-primary:hover, .ui-page .btn-success:hover { background: var(--color-primary-hover); }
.ui-page .btn-danger { background: var(--color-danger); color: var(--color-on-danger); }
.ui-page .btn-danger:hover { background: var(--color-danger-hover); }

/* Resolve legacy modal selector collisions until page markup migration is complete. */
body[data-page="feedback"] .ui-page > .modal {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 1rem;
    background: var(--color-overlay);
    align-items: center;
    justify-content: center;
    overflow: auto;
    z-index: 9000;
}
body[data-page="feedback"] .ui-page > .modal .modal-content { margin: auto; background: var(--color-dialog-bg); }

body[data-page="session-settings"] .ui-page > dialog.modal {
    position: fixed;
    inset: 0;
    display: none;
    width: min(31.25rem, calc(100vw - 2rem));
    max-width: none;
    height: max-content;
    max-height: calc(100dvh - 2rem);
    margin: auto;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-text-primary);
    overflow: visible;
    backdrop-filter: none;
}
body[data-page="session-settings"] .ui-page > dialog.modal[open] { display: block; }
body[data-page="session-settings"] .ui-page > dialog.modal::backdrop {
    background: var(--color-overlay);
    backdrop-filter: blur(4px);
}
body[data-page="session-settings"] .ui-page > dialog.modal .modal-content {
    width: 100%;
    max-width: none;
    max-height: calc(100dvh - 2rem);
    margin: 0;
    overflow-y: auto;
    background: var(--color-dialog-bg);
}
body[data-page="session-settings"] dialog.modal .modal-close,
body[data-page="session-settings"] dialog.modal .modal-close:hover,
body[data-page="session-settings"] dialog.modal .modal-close:active {
    background: transparent;
}
body[data-page="session-settings"] dialog.modal .modal-close:hover {
    color: var(--color-text-primary);
}
body[data-page="unspsc"] .modal-overlay > .modal { position: static; display: block; width: min(32.5rem, 95vw); height: auto; background: var(--color-dialog-bg); }

.ui-state { padding: 2rem 1rem; border: 1px dashed var(--color-border-strong); border-radius: 0.8rem; color: var(--color-text-muted); text-align: center; }
.ui-state--error { color: var(--color-danger-text); background: var(--color-danger-bg); border-color: var(--color-danger-border); }
.ui-toast-region { position: fixed; top: 5.25rem; right: 1rem; z-index: 11000; display: grid; gap: 0.5rem; }
.ui-toast { max-width: min(24rem, calc(100vw - 2rem)); padding: 0.75rem 1rem; border: 1px solid var(--color-border-default); border-radius: 0.7rem; background: var(--color-bg-elevated); color: var(--color-text-primary); box-shadow: var(--shadow-lg); }
.ui-toast--success { background: var(--color-success-bg); border-color: var(--color-success-border); color: var(--color-success-text); }
.ui-toast--error { background: var(--color-danger-bg); border-color: var(--color-danger-border); color: var(--color-danger-text); }

@media (max-width: 900px) {
    html:has(body.ui-app-shell), body.ui-app-shell { height: 100dvh !important; min-height: 0 !important; overflow: hidden !important; }
    body.ui-app-shell { display: block; padding: 0 !important; }
    body.ui-app-shell.ui-shell-pending::before { content: ""; display: block; height: 4.25rem; }
    body.ui-app-shell.ui-drawer-open { overflow: hidden; }
    .ui-sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(18rem, 86vw);
        height: 100vh;
        height: 100dvh;
        transform: translateX(-105%);
        transition: transform 0.22s ease;
        box-shadow: var(--shadow-lg);
    }
    .ui-drawer-open .ui-sidebar { transform: translateX(0); }
    .ui-sidebar__brand { padding-left: max(1rem, env(safe-area-inset-left)); }
    .ui-sidebar__nav { padding: 0.45rem 0.65rem max(1rem, env(safe-area-inset-bottom)); }
    .ui-sidebar__group { padding-top: 0.7rem; }
    .ui-sidebar__link { min-height: 2.6rem; padding-block: 0.45rem; }
    .ui-sidebar-collapsed .ui-sidebar__brand-text { display: grid; }
    .ui-sidebar-collapsed .ui-sidebar__group { display: block; }
    .ui-sidebar-collapsed .ui-sidebar__link span:last-child { display: inline; }
    .ui-sidebar-collapsed .ui-sidebar__brand { justify-content: flex-start; padding-inline: 1rem; }
    .ui-sidebar-collapsed .ui-sidebar__mark { display: grid; }
    .ui-sidebar-collapsed .ui-sidebar__link { justify-content: flex-start; }
    .ui-sidebar__collapse { display: inline-grid; }
    .ui-sidebar-collapsed .ui-sidebar__collapse { margin-left: auto; }
    .ui-sidebar-collapsed .ui-sidebar__collapse svg { transform: none; }
    .ui-topbar {
        position: sticky;
        width: 100%;
        height: 4.25rem;
        display: grid;
        grid-template-columns: 2.5rem minmax(0, 1fr) auto;
        grid-template-rows: 1fr;
        align-items: center;
        gap: 0.55rem;
        padding: 0 0.75rem;
    }
    .ui-topbar__leading { display: contents; }
    .ui-icon-button.ui-menu-button { display: inline-grid; grid-column: 1; grid-row: 1; align-self: center; }
    .ui-topbar__leading > div { grid-column: 2; grid-row: 1; min-width: 0; align-self: center; }
    .ui-topbar__leading strong { display: block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .ui-topbar__actions { grid-column: 3; grid-row: 1; min-width: 0; align-self: center; flex: none; flex-wrap: nowrap; gap: 0.35rem; }
    .ui-topbar__actions > * { flex: none; }
    body.ui-app-shell .ui-page { width: 100%; height: calc(100dvh - 4.25rem) !important; min-height: 0; padding: 1rem; overflow: auto !important; }
    .ui-shell-overlay { position: fixed; inset: 0; z-index: 190; border: 0; background: var(--color-overlay); }
    .ui-drawer-open .ui-shell-overlay { display: block; }
    .ui-page .table-wrapper, .ui-page .table-container, .ui-page .section { max-width: 100%; overflow-x: auto; }
    .ui-page table { min-width: 42rem; }
}

@media (max-width: 700px) {
    body[data-page] .ui-page > header.ui-page-header {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .ui-topbar__eyebrow { display: none; }
    body.ui-app-shell .ui-page { padding: 0.75rem; }
    .ui-page .card-grid { grid-template-columns: 1fr !important; }
    .ui-page .tabs { overflow-x: auto; scrollbar-width: thin; }
    .ui-page .tab { flex: 0 0 auto; width: auto; }
    .ui-toast-region { inset: auto 0.75rem 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}