.ovs-app {
    min-height: 100vh;
}

.ovs-shell {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.site-header,
.site-footer {
    border-color: var(--color-border);
    background: color-mix(in srgb, var(--color-surface) 88%, transparent);
    backdrop-filter: blur(18px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner,
.site-footer__inner,
.site-main {
    width: min(calc(100% - 2rem), var(--container-width));
    margin-inline: auto;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    min-height: 76px;
}

.site-main {
    flex: 1;
    padding-block: clamp(2rem, 6vw, 4rem);
}

.site-footer {
    border-top: 1px solid var(--color-border);
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-6);
    color: var(--color-text-secondary);
}

.site-footer__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
}

.brand__mark {
    display: inline-grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0.22rem;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--color-primary) 18%, var(--color-border));
    border-radius: 0.8rem;
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.brand__mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand__text {
    display: grid;
    gap: 2px;
}

.brand__text span {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    color: var(--color-text-secondary);
}

.site-nav a {
    transition: color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--color-text-primary);
}

.menu-toggle {
    display: none;
    width: 2.75rem;
    height: 2.75rem;
    flex: 0 0 auto;
    place-items: center;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text-primary);
    cursor: pointer;
}

.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after {
    display: block;
    width: 1.2rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.menu-toggle__icon {
    position: relative;
}

.menu-toggle__icon::before,
.menu-toggle__icon::after {
    position: absolute;
    left: 0;
    content: '';
}

.menu-toggle__icon::before { transform: translateY(-6px); }
.menu-toggle__icon::after { transform: translateY(6px); }

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

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.theme-toggle--sidebar {
    width: 100%;
    justify-content: center;
}

.inline-form {
    margin: 0;
}

.flash-stack {
    display: grid;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.alert {
    padding: 0.9rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-xs);
}

.alert--success {
    border-color: color-mix(in srgb, var(--color-success) 30%, var(--color-border));
    background: color-mix(in srgb, var(--color-success) 10%, var(--color-surface));
}

.alert--error {
    border-color: color-mix(in srgb, var(--color-error) 30%, var(--color-border));
    background: color-mix(in srgb, var(--color-error) 10%, var(--color-surface));
}

.alert--warning {
    border-color: color-mix(in srgb, var(--color-warning) 30%, var(--color-border));
    background: color-mix(in srgb, var(--color-warning) 10%, var(--color-surface));
}

.alert--info {
    border-color: color-mix(in srgb, var(--color-info) 30%, var(--color-border));
    background: color-mix(in srgb, var(--color-info) 10%, var(--color-surface));
}

.app-shell {
    display: grid;
    min-height: 100vh;
    transition: grid-template-columns var(--transition-base);
}

@media (min-width: 1024px) {
    .app-shell {
        grid-template-columns: 280px minmax(0, 1fr);
    }

    .is-sidebar-collapsed .app-shell {
        grid-template-columns: 0 minmax(0, 1fr);
    }
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding: var(--space-6);
    border-right: 1px solid var(--color-border);
    background: color-mix(in srgb, var(--color-surface) 96%, transparent);
    opacity: 1;
    transform: translateX(0);
    transition: transform var(--transition-base), opacity var(--transition-fast), padding var(--transition-base);
}

@media (min-width: 1024px) {
    .is-sidebar-collapsed .sidebar {
        overflow: hidden;
        padding-right: 0;
        padding-left: 0;
        border-right-width: 0;
        opacity: 0;
        pointer-events: none;
        transform: translateX(-100%);
    }

    .menu-toggle--sidebar,
    .menu-toggle--app {
        display: grid;
    }
}

.sidebar__nav {
    display: grid;
    gap: 0.5rem;
}

.sidebar__nav a {
    padding: 0.9rem 1rem;
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.sidebar__nav a:hover,
.sidebar__nav a:focus-visible {
    background: color-mix(in srgb, var(--color-primary) 12%, transparent);
    color: var(--color-text-primary);
}

.sidebar__footer {
    margin-top: auto;
}

.app-shell__main {
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) clamp(1rem, 3vw, 2rem);
    border-bottom: 1px solid var(--color-border);
    background: color-mix(in srgb, var(--color-surface) 94%, transparent);
    backdrop-filter: blur(18px);
}

.topbar__left {
    display: grid;
    gap: 0.25rem;
}

.topbar__navigation {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-width: 0;
}

.menu-toggle--app {
    display: grid;
}

.topbar__eyebrow {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
}

.topbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.topbar__link {
    color: var(--color-text-secondary);
}

.auth-shell {
    display: grid;
    min-height: 100vh;
}

@media (min-width: 960px) {
    .auth-shell {
        grid-template-columns: 1fr 520px;
    }
}

.auth-shell__panel {
    display: grid;
    gap: var(--space-8);
    padding: clamp(1.5rem, 4vw, 3rem);
    background:
        radial-gradient(circle at top left, rgba(109, 74, 255, 0.22), transparent 36%),
        linear-gradient(180deg, color-mix(in srgb, var(--color-primary-dark) 35%, var(--color-background)), var(--color-background));
    color: #fff;
}

.auth-shell__panel .brand__text span,
.auth-shell__panel p {
    color: rgba(255, 255, 255, 0.78);
}

.auth-shell__copy {
    display: grid;
    gap: var(--space-4);
    max-width: 60ch;
}

.trust-stack {
    display: grid;
    gap: var(--space-3);
}

.trust-stack__item {
    padding: 0.9rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.05);
}

.auth-shell__content {
    display: grid;
    place-items: center;
    padding: clamp(1.5rem, 4vw, 3rem);
}

.auth-card {
    width: min(100%, 520px);
    display: grid;
    gap: var(--space-5);
    padding: clamp(1.25rem, 4vw, 2rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
}

.auth-card__header {
    display: grid;
    gap: var(--space-2);
}

.auth-grid {
    display: grid;
    gap: var(--space-4);
}

.two-column {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 900px) {
    .two-column {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.three-column {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 900px) {
    .three-column {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.metric-grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 700px) {
    .metric-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1100px) {
    .metric-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.metric-card {
    padding: var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.metric-card__label {
    display: block;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
    font-size: 0.88rem;
}

.metric-card__value {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
}

.metric-card__meta {
    display: block;
    color: var(--color-text-secondary);
    margin-top: var(--space-2);
    font-size: 0.9rem;
}

.section-card {
    padding: var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.table-shell {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 1rem 1.1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.data-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    background: color-mix(in srgb, var(--color-surface) 92%, var(--color-background));
}

.data-table tr:hover td {
    background: color-mix(in srgb, var(--color-primary) 4%, transparent);
}

.badge--warning {
    background: color-mix(in srgb, var(--color-warning) 18%, transparent);
    color: var(--color-warning);
}

.badge--danger {
    background: color-mix(in srgb, var(--color-error) 18%, transparent);
    color: var(--color-error);
}

.badge--info {
    background: color-mix(in srgb, var(--color-info) 18%, transparent);
    color: var(--color-info);
}

.stepper {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 960px) {
    .stepper {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.step-card {
    padding: var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
}

.step-card__number {
    display: inline-grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    margin-bottom: var(--space-4);
    background: color-mix(in srgb, var(--color-primary) 15%, transparent);
    color: var(--color-primary);
    font-weight: 800;
}

.accordion {
    display: grid;
    gap: var(--space-3);
}

.accordion__item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.accordion__summary {
    list-style: none;
    cursor: pointer;
    padding: 1rem 1.1rem;
    font-weight: 700;
}

.accordion__content {
    padding: 0 1.1rem 1rem;
    color: var(--color-text-secondary);
}

.timeline {
    display: grid;
    gap: var(--space-3);
}

.timeline__item {
    position: relative;
    padding: 1rem 1rem 1rem 1.5rem;
    border-left: 2px solid var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 4%, var(--color-surface));
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.upload-zone {
    border: 1.5px dashed var(--color-border);
    border-radius: var(--radius-xl);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    text-align: center;
    background: color-mix(in srgb, var(--color-surface) 94%, transparent);
}

.copy-field {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    min-width: 0;
}

.copy-field input {
    flex: 1 1 0;
    min-width: 0;
}

.voucher-card {
    display: grid;
    gap: var(--space-4);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background:
        radial-gradient(circle at top right, rgba(109, 74, 255, 0.1), transparent 28%),
        var(--color-surface);
    box-shadow: var(--shadow-lg);
}

.voucher-card__header {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.voucher-card__meta {
    display: grid;
    gap: 0.25rem;
    color: var(--color-text-secondary);
}

.voucher-credentials {
    display: grid;
    gap: var(--space-4);
}

.voucher-credentials__row {
    display: grid;
    gap: var(--space-3);
}

@media (min-width: 700px) {
    .voucher-credentials__row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--color-primary) 12%, transparent);
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: 700;
}

@media (max-width: 1023px) {
    .sidebar {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
    }

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

    .menu-toggle--sidebar {
        display: grid;
    }

    .js .sidebar__nav,
    .js .sidebar__footer {
        display: none;
    }

    .js .is-sidebar-open .sidebar__nav,
    .js .is-sidebar-open .sidebar__footer {
        display: grid;
    }

    .is-sidebar-open .menu-toggle--sidebar .menu-toggle__icon {
        background: transparent;
    }

    .is-sidebar-open .menu-toggle--sidebar .menu-toggle__icon::before {
        transform: rotate(45deg);
    }

    .is-sidebar-open .menu-toggle--sidebar .menu-toggle__icon::after {
        transform: rotate(-45deg);
    }
}
.theme-toggle:hover {
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.hero {
    display: grid;
    gap: var(--space-8);
    align-items: center;
}

.hero > *,
.field {
    min-width: 0;
}

@media (min-width: 960px) {
    .hero {
        grid-template-columns: 1.15fr 0.85fr;
    }
}

.hero__content {
    display: grid;
    gap: var(--space-4);
}

.button-row,
.component-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0.9rem 1.45rem;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn--compact {
    min-height: 44px;
    padding: 0.7rem 1.1rem;
    font-size: 0.92rem;
}

.btn--copy {
    min-height: 42px;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0) scale(0.985);
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.58;
    transform: none;
}

.btn:focus-visible,
.theme-toggle:focus-visible,
.field__control:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--color-primary) 42%, transparent);
    outline-offset: 2px;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn--secondary {
    border-color: var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-primary);
}

.card,
.panel,
.stat-card,
.empty-state {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: color-mix(in srgb, var(--color-surface) 96%, transparent);
    box-shadow: var(--shadow-sm);
}

.card,
.panel {
    padding: var(--space-6);
}

.card {
    display: grid;
    gap: var(--space-3);
}

.card__header {
    display: grid;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.card__eyebrow {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.stat-grid,
.feature-grid,
.token-grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .stat-grid,
    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .token-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.stat-card {
    display: grid;
    gap: 0.25rem;
    padding: var(--space-5);
}

.stat-card__label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.stat-card__value {
    font-size: 1.25rem;
}

.stat-card__meta {
    color: var(--color-text-secondary);
    font-size: 0.92rem;
}

.field {
    display: grid;
    gap: var(--space-2);
}

.field__label {
    font-size: 0.9rem;
    font-weight: 600;
}

.field__control {
    min-height: 46px;
    padding: 0.85rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field__control::placeholder {
    color: var(--color-text-muted);
}

.field__control:focus {
    border-color: color-mix(in srgb, var(--color-primary) 60%, var(--color-border));
}

.field__help {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-pill);
    padding: 0.4rem 0.7rem;
    font-size: 0.8rem;
    font-weight: 700;
}

.badge--success {
    background: color-mix(in srgb, var(--color-success) 18%, transparent);
    color: var(--color-success);
}

.badge--neutral {
    background: color-mix(in srgb, var(--color-text-muted) 12%, transparent);
    color: var(--color-text-secondary);
}

.empty-state {
    display: grid;
    place-items: center;
    gap: var(--space-4);
    padding: clamp(2rem, 5vw, 4rem);
    text-align: center;
}

.empty-state__icon {
    display: inline-grid;
    place-items: center;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: color-mix(in srgb, var(--color-primary) 16%, transparent);
    color: var(--color-primary);
    font-weight: 800;
}

.section {
    display: grid;
    gap: var(--space-6);
}

.section + .section {
    margin-top: var(--space-16);
}

.section__heading {
    display: grid;
    gap: var(--space-2);
    max-width: 66ch;
}

.section--centered {
    min-height: calc(100vh - 200px);
    place-items: center;
}

.stack {
    display: grid;
    gap: var(--space-5);
}

.token-swatch {
    min-height: 88px;
    display: flex;
    align-items: end;
    justify-content: start;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    color: white;
    font-weight: 700;
    box-shadow: var(--shadow-xs);
}

.token-swatch--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.token-swatch--surface {
    color: var(--color-text-primary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.token-swatch--success {
    background: linear-gradient(135deg, var(--color-success), color-mix(in srgb, var(--color-success) 55%, black));
}

.token-swatch--error {
    background: linear-gradient(135deg, var(--color-error), color-mix(in srgb, var(--color-error) 60%, black));
}

.sample-inputs {
    margin-top: var(--space-5);
    display: grid;
    gap: var(--space-4);
}

@media (max-width: 767px) {
    .site-header__inner {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        min-height: 68px;
        gap: var(--space-3);
        padding-block: var(--space-3);
    }

    .site-footer__inner {
        flex-direction: column;
        align-items: flex-start;
        padding-block: var(--space-4);
    }

    .menu-toggle {
        display: grid;
    }

    .site-nav {
        grid-column: 1 / -1;
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .site-header__actions {
        grid-column: 1 / -1;
        justify-content: flex-start;
    }

    .js .site-nav,
    .js .site-header__actions {
        display: none;
    }

    .js .is-nav-open .site-nav,
    .js .is-nav-open .site-header__actions {
        display: flex;
    }

    .is-nav-open .menu-toggle__icon {
        background: transparent;
    }

    .is-nav-open .menu-toggle__icon::before {
        transform: rotate(45deg);
    }

    .is-nav-open .menu-toggle__icon::after {
        transform: rotate(-45deg);
    }

    .site-header__actions .btn {
        flex: 0 1 auto;
    }
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.site-main--app {
    width: min(calc(100% - 2rem), var(--container-width));
    padding: clamp(1rem, 2vw, 2rem);
}

.sidebar__brand {
    padding-bottom: var(--space-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.sidebar__brand .brand {
    width: 100%;
    justify-content: flex-start;
}

.field__control--textarea {
    min-height: 140px;
    resize: vertical;
}

.accordion__summary::-webkit-details-marker {
    display: none;
}

.accordion__summary::after {
    content: '+';
    float: right;
    color: var(--color-text-muted);
}

.accordion__item[open] .accordion__summary::after {
    content: '–';
}