/* FullWorth premium authenticated UI layer.
   Loaded by AppLayout after the existing shell/page styles.
   It intentionally preserves behavior and only changes presentation. */

.app-shell {
    --premium-accent: #5b6df8;
    --premium-accent-strong: #4660f2;
    --premium-accent-soft: rgba(91, 109, 248, 0.12);
    --premium-success: #35b978;
    --premium-success-soft: rgba(53, 185, 120, 0.11);
    --premium-warning: #e4a943;
    --premium-warning-soft: rgba(228, 169, 67, 0.11);
    --premium-danger: #e56f67;
    --premium-danger-soft: rgba(229, 111, 103, 0.1);
    --premium-radius-sm: 12px;
    --premium-radius-md: 18px;
    --premium-radius-lg: 24px;
    --premium-radius-xl: 30px;
    --premium-shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.06);
    --premium-shadow-md: 0 18px 54px rgba(15, 23, 42, 0.09);
    --premium-shadow-lg: 0 28px 80px rgba(15, 23, 42, 0.13);
    min-height: 100vh;
    grid-template-columns: 236px minmax(0, 1fr);
    background:
        radial-gradient(circle at 70% -12%, rgba(91, 109, 248, 0.13), transparent 34rem),
        radial-gradient(circle at 98% 38%, rgba(94, 197, 255, 0.055), transparent 30rem),
        var(--bw-bg);
}

html:not([data-theme="light"]) .app-shell,
html[data-theme="dark"] .app-shell {
    --premium-shadow-sm: 0 12px 34px rgba(0, 0, 0, 0.2);
    --premium-shadow-md: 0 20px 58px rgba(0, 0, 0, 0.28);
    --premium-shadow-lg: 0 32px 90px rgba(0, 0, 0, 0.38);
}

.app-shell *,
.app-shell *::before,
.app-shell *::after {
    box-sizing: border-box;
}

.app-shell a,
.app-shell button,
.app-shell input,
.app-shell select,
.app-shell textarea {
    -webkit-tap-highlight-color: transparent;
}

.app-shell button:focus-visible,
.app-shell a:focus-visible,
.app-shell input:focus-visible,
.app-shell select:focus-visible,
.app-shell textarea:focus-visible {
    outline: 2px solid rgba(91, 109, 248, 0.72);
    outline-offset: 3px;
}

/* Shell */

.app-shell .app-sidebar {
    height: 100vh;
    padding: 24px 14px 18px;
    border-right: 1px solid var(--bw-border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 34%), var(--bw-surface-soft);
    box-shadow: 12px 0 42px rgba(15, 23, 42, 0.025);
    backdrop-filter: blur(30px) saturate(130%);
    -webkit-backdrop-filter: blur(30px) saturate(130%);
}

.app-shell .sidebar-top {
    gap: 38px;
}

.app-shell .app-brand {
    padding: 0 12px;
    gap: 11px;
}

.app-shell .app-brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: linear-gradient(145deg, #3956f0 0%, #6679ff 58%, #8b96ff 100%);
    box-shadow: 0 10px 28px rgba(70, 96, 242, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.34);
}

.app-shell .app-brand-mark span {
    top: 10px;
    left: 10px;
}

.app-shell .app-brand strong {
    font-size: 1.08rem;
    font-weight: 780;
    letter-spacing: -0.045em;
}

.app-shell .app-nav {
    gap: 7px;
}

.app-shell .app-nav-link {
    position: relative;
    min-height: 48px;
    padding: 0 13px;
    gap: 12px;
    border: 1px solid transparent;
    border-radius: 15px;
    color: var(--bw-text-muted);
    font-size: 0.8rem;
    font-weight: 670;
    letter-spacing: -0.01em;
    transition: transform 160ms ease, color 160ms ease, background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.app-shell .app-nav-link:hover {
    color: var(--bw-text);
    background: rgba(105, 121, 164, 0.065);
    transform: translateX(2px);
}

.app-shell .app-nav-link.active {
    color: var(--bw-text);
    border-color: rgba(91, 109, 248, 0.16);
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.14), rgba(91, 109, 248, 0.07));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045), 0 10px 26px rgba(70, 96, 242, 0.08);
}

.app-shell .app-nav-link.active::before {
    content: "";
    position: absolute;
    left: -7px;
    width: 3px;
    height: 20px;
    border-radius: 999px;
    background: linear-gradient(180deg, #8190ff, #5368ef);
    box-shadow: 0 0 16px rgba(91, 109, 248, 0.52);
}

.app-shell .nav-icon {
    width: 20px;
    height: 20px;
}

.app-shell .nav-icon svg {
    width: 19px;
    height: 19px;
    stroke-width: 1.7;
}

.app-shell .sidebar-bottom {
    gap: 14px;
}

.app-shell .sidebar-account {
    padding: 15px 9px 0;
    gap: 10px;
}

.app-shell .account-avatar {
    width: 38px;
    height: 38px;
    border-radius: 13px;
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.22), rgba(91, 109, 248, 0.08));
    color: #94a2ff;
    box-shadow: inset 0 0 0 1px rgba(91, 109, 248, 0.12);
}

.app-shell .account-copy strong {
    font-size: 0.7rem;
}

.app-shell .account-copy span {
    color: var(--bw-text-subtle);
    font-size: 0.58rem;
}

.app-shell .logout-button {
    width: 35px;
    height: 35px;
    border-radius: 11px;
}

.app-shell .app-main {
    min-width: 0;
    background: transparent;
}

.app-shell .app-topbar {
    height: 76px;
    padding: 0 34px;
    border-bottom: 1px solid var(--bw-border);
    background: var(--bw-header-bg);
    backdrop-filter: blur(28px) saturate(135%);
    -webkit-backdrop-filter: blur(28px) saturate(135%);
}

.app-shell .topbar-status {
    min-height: 34px;
    padding: 0 12px;
    gap: 8px;
    border-color: var(--bw-border);
    background: var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
    font-size: 0.64rem;
}

.app-shell .watch-dot {
    background: var(--premium-success);
}

.app-shell .app-content {
    width: min(1180px, calc(100% - 64px));
    padding: 52px 0 92px;
}

/* Shared page hierarchy */

.app-shell .app-page {
    gap: 32px;
}

.app-shell .page-heading {
    align-items: flex-end;
    gap: 34px;
}

.app-shell .page-kicker,
.app-shell .panel-kicker,
.app-shell .change-eyebrow,
.app-shell .danger-kicker {
    color: #8291fa;
    font-size: 0.63rem;
    font-weight: 820;
    letter-spacing: 0.12em;
}

.app-shell .page-heading h1 {
    margin: 10px 0 10px;
    font-size: clamp(2.35rem, 4.4vw, 3.45rem);
    line-height: 0.96;
    font-weight: 770;
    letter-spacing: -0.065em;
}

.app-shell .page-heading p {
    max-width: 690px;
    font-size: 0.88rem;
    line-height: 1.65;
}

.app-shell .metric-grid,
.app-shell .transaction-summary-grid,
.app-shell .activity-summary {
    gap: 16px;
}

.app-shell .metric-card,
.app-shell .transaction-summary-grid article,
.app-shell .summary-card {
    min-height: 148px;
    padding: 23px;
    border: 1px solid var(--bw-border);
    border-radius: 22px;
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.035), transparent 50%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.app-shell .metric-card:hover,
.app-shell .transaction-summary-grid article:hover,
.app-shell .summary-card:hover {
    border-color: var(--bw-border-strong);
    transform: translateY(-1px);
}

.app-shell .metric-label,
.app-shell .transaction-summary-grid article > span,
.app-shell .summary-card span {
    font-size: 0.67rem;
    font-weight: 680;
}

.app-shell .metric-value,
.app-shell .transaction-summary-grid article > strong,
.app-shell .summary-card strong {
    margin-top: 16px;
    font-size: clamp(2rem, 4vw, 2.55rem);
    font-weight: 760;
    letter-spacing: -0.065em;
}

.app-shell .metric-footnote,
.app-shell .transaction-summary-grid article > small,
.app-shell .summary-card small {
    padding-top: 14px;
    font-size: 0.59rem;
    line-height: 1.45;
}

.app-shell .app-panel,
.app-shell .detail-panel,
.app-shell .account-panel,
.app-shell .alerts-empty,
.app-shell .activity-empty,
.app-shell .transaction-empty,
.app-shell .privacy-management-card,
.app-shell .privacy-explanation-card {
    border: 1px solid var(--bw-border);
    border-radius: var(--premium-radius-lg);
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.025), transparent 48%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .dashboard-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(310px, 0.72fr);
    gap: 20px;
}

.app-shell .bills-panel,
.app-shell .insight-panel,
.app-shell .detail-panel,
.app-shell .account-panel {
    padding: 27px;
}

.app-shell .panel-heading {
    margin-bottom: 22px;
}

.app-shell .panel-heading h2,
.app-shell .account-panel-heading h2 {
    margin-top: 6px;
    font-size: 1.15rem;
    font-weight: 730;
    letter-spacing: -0.04em;
}

.app-shell .text-action {
    color: #8796ff;
    font-size: 0.69rem;
}

.app-shell .primary-action,
.app-shell .secondary-action,
.app-shell .activity-refresh-button,
.app-shell .privacy-primary-button,
.app-shell .connect-bank-button,
.app-shell .reconnect-button,
.app-shell .disconnect-button,
.app-shell .danger-button,
.app-shell .cancel-delete-button,
.app-shell .final-delete-button {
    min-height: 42px;
    border-radius: 13px;
    font-size: 0.68rem;
    font-weight: 740;
    letter-spacing: -0.005em;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.app-shell .primary-action,
.app-shell .privacy-primary-button,
.app-shell .connect-bank-button {
    background: linear-gradient(145deg, #435ef1, #697aff);
    box-shadow: 0 12px 30px rgba(70, 96, 242, 0.23), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.app-shell .primary-action:hover,
.app-shell .privacy-primary-button:hover:not(:disabled),
.app-shell .connect-bank-button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 17px 38px rgba(70, 96, 242, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.app-shell .secondary-action,
.app-shell .activity-refresh-button,
.app-shell .cancel-delete-button {
    border: 1px solid var(--bw-border);
    background: var(--bw-surface-soft);
    color: var(--bw-text-secondary);
    box-shadow: none;
}

/* Overview */

.app-shell .bill-row {
    min-height: 78px;
    padding: 12px 4px;
    gap: 14px;
}

.app-shell .bill-row:hover {
    border-radius: 14px;
    background: rgba(91, 109, 248, 0.045);
}

.app-shell .bill-avatar,
.app-shell .bill-provider-avatar,
.app-shell .connection-logo,
.app-shell .financial-icon,
.app-shell .transaction-icon,
.app-shell .detail-provider-avatar {
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.15), rgba(91, 109, 248, 0.06));
    color: #91a0ff;
    box-shadow: inset 0 0 0 1px rgba(91, 109, 248, 0.09);
}

.app-shell .bill-avatar {
    width: 43px;
    height: 43px;
    border-radius: 14px;
}

.app-shell .bill-info strong,
.app-shell .bill-provider h2,
.app-shell .transaction-title-line strong,
.app-shell .connection-copy strong,
.app-shell .financial-account-copy strong {
    font-size: 0.78rem;
    font-weight: 700;
}

.app-shell .bill-amount strong,
.app-shell .transaction-amount {
    font-size: 0.84rem;
    font-variant-numeric: tabular-nums;
}

.app-shell .insight-panel {
    min-height: 390px;
}

.app-shell .insight-change {
    margin-top: 10px;
    font-size: clamp(2.85rem, 5vw, 4.15rem);
    font-weight: 760;
}

.app-shell .annual-impact {
    padding: 16px;
    border: 1px solid rgba(229, 111, 103, 0.1);
    border-radius: 16px;
    background: linear-gradient(145deg, rgba(229, 111, 103, 0.12), rgba(229, 111, 103, 0.055));
}

.app-shell .annual-impact strong {
    font-size: 1.12rem;
}

.app-shell .steady-check,
.app-shell .alerts-empty-icon,
.app-shell .activity-empty-icon {
    background: var(--premium-success-soft);
    color: var(--premium-success);
}

/* Bills */

.app-shell .bills-heading-summary,
.app-shell .activity-count {
    padding: 13px 16px;
    border-radius: 16px;
    background: var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .bill-filter-bar,
.app-shell .activity-filters {
    gap: 8px;
}

.app-shell .bill-filter,
.app-shell .activity-filter {
    min-height: 39px;
    padding: 0 13px;
    border-radius: 12px;
    background: var(--bw-surface-soft);
    font-size: 0.66rem;
}

.app-shell .bill-filter.active,
.app-shell .activity-filter.active {
    border-color: rgba(91, 109, 248, 0.24);
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.14), rgba(91, 109, 248, 0.07));
    color: #91a0ff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.app-shell .bill-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.app-shell .bill-card {
    min-height: 292px;
    padding: 24px;
    border-radius: 24px;
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.035), transparent 50%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .bill-card:hover {
    transform: translateY(-4px);
    border-color: rgba(91, 109, 248, 0.2);
    box-shadow: var(--premium-shadow-md);
}

.app-shell .bill-provider-avatar {
    width: 43px;
    height: 43px;
    border-radius: 14px;
}

.app-shell .watching-state {
    padding: 5px 8px;
    border-radius: 999px;
    background: rgba(53, 185, 120, 0.065);
    color: var(--premium-success);
}

.app-shell .bill-current {
    margin-top: 32px;
}

.app-shell .bill-current strong {
    margin-top: 7px;
    font-size: 2.15rem;
    font-weight: 750;
    font-variant-numeric: tabular-nums;
}

.app-shell .bill-change-panel {
    margin-top: 22px;
    padding: 14px;
    border: 1px solid transparent;
    border-radius: 16px;
}

.app-shell .bill-change-panel.increase {
    border-color: rgba(229, 111, 103, 0.09);
    background: var(--premium-danger-soft);
}

.app-shell .bill-change-panel.decrease {
    border-color: rgba(53, 185, 120, 0.09);
    background: var(--premium-success-soft);
}

.app-shell .bill-change-panel.steady {
    border-color: var(--bw-border);
    background: rgba(105, 121, 164, 0.055);
}

.app-shell .bill-detail-header {
    align-items: center;
    padding: 4px 0 12px;
}

.app-shell .detail-provider-avatar {
    width: 64px;
    height: 64px;
    border-radius: 20px;
}

.app-shell .bill-detail-provider h1 {
    font-size: clamp(2.55rem, 5vw, 4rem);
    font-weight: 760;
}

.app-shell .current-bill-amount > strong {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 750;
    font-variant-numeric: tabular-nums;
}

.app-shell .detected-change-card {
    padding: 28px;
    border-radius: 25px;
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .detected-change-card.increase {
    background: linear-gradient(145deg, rgba(229, 111, 103, 0.13), var(--bw-surface-soft) 60%);
}

.app-shell .detected-change-card.decrease {
    background: linear-gradient(145deg, rgba(53, 185, 120, 0.13), var(--bw-surface-soft) 60%);
}

.app-shell .detected-change-values strong {
    font-size: 1.65rem;
    font-variant-numeric: tabular-nums;
}

.app-shell .change-impact-stack > div {
    padding: 14px;
    border-radius: 14px;
    background: rgba(105, 121, 164, 0.055);
}

.app-shell .change-description {
    font-size: 0.93rem;
    line-height: 1.75;
}

/* Activity */

.app-shell .activity-toolbar {
    gap: 22px;
}

.app-shell .activity-refresh-button {
    padding: 0 14px;
}

.app-shell .alert-list,
.app-shell .activity-list {
    gap: 12px;
}

.app-shell .alert-card {
    padding: 21px 22px;
    gap: 17px;
    border-radius: 21px;
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.025), transparent 52%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .alert-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--premium-shadow-md);
}

.app-shell .alert-card.unread {
    border-color: rgba(91, 109, 248, 0.2);
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.085), var(--bw-surface-soft) 58%);
}

.app-shell .alert-card-icon {
    width: 46px;
    height: 46px;
    border-radius: 15px;
}

.app-shell .alert-title-line strong {
    font-size: 0.82rem;
}

.app-shell .alert-card-content > p {
    margin: 13px 0 17px;
    font-size: 0.71rem;
    line-height: 1.65;
}

.app-shell .alert-meta > span,
.app-shell .activity-meta span {
    padding: 5px 8px;
    border-radius: 8px;
    background: rgba(105, 121, 164, 0.065);
}

.app-shell .alert-secondary-action,
.app-shell .alert-primary-action {
    min-height: 34px;
    padding: 0 11px;
    border-radius: 10px;
}

.app-shell .activity-item {
    min-height: 126px;
    padding: 21px 22px;
    gap: 18px;
    border-radius: 21px;
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.025), transparent 52%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .activity-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--premium-shadow-md);
}

.app-shell .activity-date {
    width: 50px;
    height: 54px;
    border-radius: 14px;
}

/* Account */

.app-shell .account-identity-card {
    padding: 20px 22px;
    border-radius: 21px;
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.055), var(--bw-surface-soft) 58%);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .identity-avatar {
    width: 46px;
    height: 46px;
    border-radius: 15px;
}

.app-shell .identity-copy strong {
    font-size: 0.79rem;
}

.app-shell .account-grid {
    gap: 20px;
}

.app-shell .account-panel {
    min-height: 350px;
}

.app-shell .account-count {
    width: 30px;
    height: 30px;
    border-radius: 10px;
}

.app-shell .connection-row,
.app-shell .financial-account-row {
    min-height: 78px;
    padding: 12px 2px;
}

.app-shell .connection-logo,
.app-shell .financial-icon {
    width: 43px;
    height: 43px;
    border-radius: 14px;
}

.app-shell .connection-pill {
    padding: 6px 9px;
}

.app-shell .privacy-panel {
    padding: 30px;
    border-radius: 24px;
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.085), var(--bw-surface-soft) 58%);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .privacy-icon {
    width: 58px;
    height: 58px;
    border-radius: 19px;
}

.app-shell .connect-bank-card {
    padding: 28px;
    gap: 24px;
    border-color: rgba(91, 109, 248, 0.19);
    border-radius: 25px;
    background: linear-gradient(145deg, rgba(91, 109, 248, 0.12), var(--bw-surface-soft) 60%);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .connect-bank-icon {
    width: 62px;
    height: 62px;
    border-radius: 20px;
}

.app-shell .connect-bank-copy h2 {
    font-size: 1.22rem;
}

.app-shell .connect-bank-copy p {
    font-size: 0.73rem;
}

.app-shell .connection-row.requires-attention,
.app-shell .connection-row.disconnected {
    border-radius: 16px;
}

.app-shell .reconnect-button {
    border-color: rgba(91, 109, 248, 0.2);
    background: rgba(91, 109, 248, 0.1);
    color: #91a0ff;
}

/* Transactions */

.app-shell .transaction-toolbar {
    gap: 12px;
}

.app-shell .transaction-search,
.app-shell .transaction-account-filter {
    min-height: 46px;
    border-radius: 14px;
    background: var(--bw-surface-soft);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.app-shell .transaction-search:focus-within,
.app-shell .transaction-account-filter:focus {
    border-color: rgba(91, 109, 248, 0.38);
    box-shadow: 0 0 0 4px rgba(91, 109, 248, 0.08);
}

.app-shell .transaction-search input,
.app-shell .transaction-account-filter {
    font-size: 0.68rem;
}

.app-shell .transaction-list {
    border-radius: 22px;
    background: var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .transaction-row {
    min-height: 82px;
    padding: 14px 18px;
    gap: 14px;
    transition: background 150ms ease;
}

.app-shell .transaction-row:hover {
    background: rgba(91, 109, 248, 0.035);
}

.app-shell .transaction-icon {
    width: 41px;
    height: 41px;
    border-radius: 14px;
}

.app-shell .transaction-icon.outflow {
    background: rgba(105, 121, 164, 0.075);
    color: var(--bw-text-muted);
}

.app-shell .transaction-icon.credit {
    background: var(--premium-success-soft);
    color: var(--premium-success);
}

.app-shell .transaction-title-line strong {
    font-size: 0.73rem;
}

.app-shell .transaction-amount {
    min-width: 88px;
    font-size: 0.75rem;
}

/* Privacy */

.app-shell .privacy-management-card {
    padding: 26px;
    gap: 20px;
}

.app-shell .privacy-management-icon {
    width: 52px;
    height: 52px;
    border-radius: 17px;
}

.app-shell .privacy-management-copy h2,
.app-shell .privacy-explanation-card h2,
.app-shell .danger-zone h2 {
    font-size: 1.1rem;
}

.app-shell .privacy-management-copy > p,
.app-shell .privacy-explanation-card > p,
.app-shell .danger-zone > p {
    font-size: 0.69rem;
    line-height: 1.65;
}

.app-shell .danger-zone {
    padding: 26px;
    border-color: rgba(229, 111, 103, 0.2);
    border-radius: 24px;
    background: linear-gradient(145deg, rgba(229, 111, 103, 0.085), var(--bw-surface-soft) 60%);
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .danger-icon {
    width: 47px;
    height: 47px;
    border-radius: 15px;
}

.app-shell .delete-consequences,
.app-shell .delete-confirmation {
    border-radius: 15px;
}

.app-shell .delete-confirmation-input {
    height: 46px;
    border-radius: 12px;
}

/* Empty, error and loading states */

.app-shell .empty-dashboard,
.app-shell .alerts-empty,
.app-shell .activity-empty,
.app-shell .transaction-empty,
.app-shell .app-error-state {
    border-radius: 26px;
    box-shadow: var(--premium-shadow-sm);
}

.app-shell .empty-dashboard,
.app-shell .alerts-empty,
.app-shell .activity-empty {
    min-height: 420px;
}

.app-shell .empty-icon,
.app-shell .transaction-empty > div {
    width: 62px;
    height: 62px;
    border-radius: 20px;
    background: var(--premium-accent-soft);
    color: #91a0ff;
    box-shadow: inset 0 0 0 1px rgba(91, 109, 248, 0.08);
}

.app-shell .empty-dashboard h2,
.app-shell .alerts-empty h2,
.app-shell .activity-empty h2,
.app-shell .transaction-empty h2 {
    font-size: 1.5rem;
    font-weight: 730;
    letter-spacing: -0.045em;
}

.app-shell .empty-dashboard p,
.app-shell .alerts-empty p,
.app-shell .activity-empty p,
.app-shell .transaction-empty p {
    font-size: 0.78rem;
    line-height: 1.7;
}

.app-shell .app-error-state {
    min-height: 220px;
    padding: 34px;
}

.app-shell .state-symbol {
    width: 46px;
    height: 46px;
    border-radius: 15px;
}

.app-shell .skeleton-card,
.app-shell .skeleton-panel,
.app-shell .bill-card-skeleton,
.app-shell .detail-heading-skeleton,
.app-shell .detail-panel-skeleton,
.app-shell .activity-summary-skeleton > div,
.app-shell .alert-loading-row,
.app-shell .activity-skeleton,
.app-shell .transaction-skeleton,
.app-shell .transaction-list-skeleton {
    border-color: var(--bw-border);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.025), transparent 58%), var(--bw-surface-soft);
    box-shadow: var(--premium-shadow-sm);
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
    .app-shell *,
    .app-shell *::before,
    .app-shell *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}

/* Responsive */

@media (max-width: 1120px) {
    .app-shell .bill-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .app-shell .app-content {
        width: min(100% - 48px, 1180px);
    }
}

@media (max-width: 900px) {
    .app-shell {
        display: block;
    }

    .app-shell .app-sidebar {
        left: 12px;
        right: 12px;
        bottom: 12px;
        width: auto;
        height: 70px;
        padding: 8px;
        border: 1px solid var(--bw-border);
        border-radius: 22px;
        background: var(--bw-header-bg);
        box-shadow: var(--premium-shadow-lg);
        backdrop-filter: blur(30px) saturate(150%);
        -webkit-backdrop-filter: blur(30px) saturate(150%);
    }

    .app-shell .app-nav {
        height: 52px;
        gap: 4px;
    }

    .app-shell .app-nav-link {
        min-height: 52px;
        padding: 5px 8px;
        border-radius: 15px;
        font-size: 0.58rem;
    }

    .app-shell .app-nav-link:hover {
        transform: none;
    }

    .app-shell .app-nav-link.active::before {
        display: none;
    }

    .app-shell .app-topbar {
        height: 68px;
        padding: 0 20px;
    }

    .app-shell .app-content {
        width: min(100% - 32px, 1180px);
        padding: 36px 0 116px;
    }

    .app-shell .dashboard-grid,
    .app-shell .account-grid {
        grid-template-columns: 1fr;
    }

    .app-shell .privacy-panel {
        grid-template-columns: auto minmax(0, 1fr);
    }
}

@media (max-width: 720px) {
    .app-shell .page-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 18px;
    }

    .app-shell .page-heading h1 {
        font-size: clamp(2.2rem, 12vw, 3rem);
    }

    .app-shell .metric-grid,
    .app-shell .dashboard-loading,
    .app-shell .transaction-summary-grid,
    .app-shell .activity-summary-skeleton {
        grid-template-columns: 1fr;
    }

    .app-shell .metric-card,
    .app-shell .transaction-summary-grid article {
        min-height: 124px;
    }

    .app-shell .bill-card-grid {
        grid-template-columns: 1fr;
    }

    .app-shell .bill-card {
        min-height: 255px;
    }

    .app-shell .bill-detail-header,
    .app-shell .detected-change-card {
        align-items: flex-start;
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .app-shell .current-bill-amount {
        align-items: flex-start;
    }

    .app-shell .change-impact-stack {
        width: 100%;
    }

    .app-shell .activity-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .app-shell .transaction-toolbar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .app-shell .app-sidebar {
        left: 8px;
        right: 8px;
        bottom: 8px;
    }

    .app-shell .app-content {
        width: min(100% - 24px, 1180px);
        padding-top: 28px;
    }

    .app-shell .topbar-status {
        display: none;
    }

    .app-shell .bills-panel,
    .app-shell .insight-panel,
    .app-shell .detail-panel,
    .app-shell .account-panel,
    .app-shell .connect-bank-card,
    .app-shell .privacy-management-card,
    .app-shell .privacy-explanation-card,
    .app-shell .danger-zone {
        padding: 20px;
        border-radius: 20px;
    }

    .app-shell .metric-card,
    .app-shell .transaction-summary-grid article {
        padding: 20px;
    }

    .app-shell .bill-card {
        padding: 20px;
        border-radius: 21px;
    }

    .app-shell .alert-card,
    .app-shell .activity-item {
        padding: 17px;
        border-radius: 19px;
    }

    .app-shell .transaction-row {
        padding: 14px;
    }
}