:root {
    --bg: #f5f4f1;
    --surface: #ffffff;
    --surface-alt: #f8f7f4;
    --line: #e7e5e4;
    --line-strong: #d6d3d1;
    --text: #171717;
    --muted: #57534e;
    --accent: #2b2927;
    --accent-soft: #efeeea;
    --success: #166534;
    --warning: #92400e;
    --danger: #991b1b;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.04);
    --shadow-md: 0 16px 40px -32px rgba(17, 24, 39, 0.5);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
    display: block;
}

strong {
    font-weight: 600;
}

small,
.small {
    color: var(--muted);
}

.text-muted {
    color: var(--muted) !important;
}

a {
    color: var(--text);
    text-decoration: none;
}

.site-header {
    background: rgba(245, 244, 241, 0.92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.navbar {
    padding: 0.875rem 0;
}

.navbar-toggler {
    border-radius: var(--radius-sm);
    border-color: var(--line-strong);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(23, 23, 23, 0.08);
}

.brand-mark {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.brand-mark__title {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.brand-mark__subtitle {
    font-size: 0.77rem;
    color: var(--muted);
}

.nav-link {
    color: var(--muted);
    font-weight: 500;
    border-radius: 999px;
    padding: 0.5rem 0.875rem !important;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    background: var(--surface);
    box-shadow: inset 0 0 0 1px var(--line);
}

.btn,
.form-control,
textarea {
    border-radius: var(--radius-sm);
}

.btn {
    font-weight: 600;
    padding: 0.75rem 1rem;
}

.btn:focus-visible,
.form-control:focus-visible,
textarea:focus-visible,
.choice-card:focus-visible,
.filter-pill:focus-visible {
    outline: 2px solid rgba(23, 23, 23, 0.12);
    outline-offset: 2px;
}

.btn-dark {
    background: var(--accent);
    border-color: var(--accent);
}

.btn-dark:hover,
.btn-dark:focus {
    background: #111111;
    border-color: #111111;
}

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

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    color: var(--text);
    background: var(--surface-alt);
    border-color: var(--text);
}

.btn-lg {
    padding: 0.9rem 1.15rem;
}

.btn-cart {
    box-shadow: var(--shadow-sm);
}

.form-control,
textarea {
    border: 1px solid var(--line-strong);
    padding: 0.75rem 0.9rem;
    background: var(--surface);
}

.form-control:focus,
textarea:focus {
    border-color: var(--text);
    box-shadow: 0 0 0 0.2rem rgba(23, 23, 23, 0.08);
}

.invalid-feedback {
    font-size: 0.85rem;
}

.site-main {
    padding-bottom: 2rem;
}

.hero-panel,
.surface-panel,
.summary-card,
.product-card,
.metric-card,
.feature-card,
.step-card,
.empty-state-card,
.cart-item,
.info-box,
.choice-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.hero-panel {
    padding: clamp(1.25rem, 2vw, 2.5rem);
}

.surface-panel,
.summary-card,
.feature-card,
.step-card,
.empty-state-card {
    padding: 1.5rem;
}

.section-block {
    padding: 1rem 0 2rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.65rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.display-title {
    font-size: clamp(2.25rem, 4vw, 4rem);
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin: 1rem 0;
    max-width: 12ch;
}

.lead-copy {
    color: var(--muted);
    max-width: 62ch;
    font-size: 1.05rem;
    line-height: 1.7;
}

.section-title {
    font-size: clamp(1.65rem, 2.4vw, 2.5rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 700;
    margin: 0.65rem 0 0.75rem;
}

.section-copy {
    color: var(--muted);
    max-width: 60ch;
    line-height: 1.7;
}

.metric-card {
    padding: 1.1rem 1rem;
    height: 100%;
}

.metric-value {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.metric-value--small {
    font-size: 1.2rem;
}

.metric-label {
    margin-top: 0.4rem;
    font-size: 0.88rem;
    color: var(--muted);
}

.card-kicker {
    font-size: 0.77rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.summary-title {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.list-clean {
    list-style: none;
    padding: 0;
    margin: 0;
}

.compact-list {
    display: grid;
    gap: 0.85rem;
}

.compact-list li {
    display: flex;
    gap: 0.875rem;
    align-items: flex-start;
    color: var(--muted);
}

.list-index {
    width: 1.75rem;
    height: 1.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 600;
    flex-shrink: 0;
}

.receipt-card {
    background: var(--surface-alt);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
}

.receipt-card--flat {
    background: transparent;
    padding: 0;
    border: 0;
}

.receipt-card__head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.92rem;
    color: var(--muted);
    margin-bottom: 0.65rem;
}

.receipt-line {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.receipt-line:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.receipt-line strong {
    color: var(--text);
    font-weight: 600;
    text-align: right;
}

.receipt-line--total {
    margin-top: 0.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line-strong);
    font-size: 1rem;
}

.feature-card__title,
.step-card h3 {
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 0.55rem;
}

.feature-card__copy,
.step-card p,
.note-copy,
.info-box p {
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
}

.step-card__number {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.85rem;
}

.filter-pills {
    overflow-x: auto;
    padding-bottom: 0.125rem;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.65rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    font-size: 0.9rem;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.filter-pill:hover,
.filter-pill.is-active {
    color: var(--text);
    border-color: var(--text);
}

.product-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.product-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.2rem;
}

.product-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

.product-card__copy {
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.product-visual {
    border-bottom: 1px solid var(--line);
    padding: 1.2rem;
    min-height: 15rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--surface-alt);
}

.product-visual--large {
    min-height: 24rem;
    border: 1px solid var(--line);
    border-radius: calc(var(--radius-lg) - 4px);
}

.product-visual--mini {
    min-height: 8.5rem;
    width: 12rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.product-visual--ink {
    background: #efefee;
}

.product-visual--stone {
    background: #f4f2ee;
}

.product-visual--sand {
    background: #f3efe6;
}

.product-visual--taupe {
    background: #ece7df;
}

.product-visual__meta {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.product-visual__code {
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: -0.08em;
    line-height: 1;
    font-weight: 800;
    color: rgba(23, 23, 23, 0.85);
}

.product-visual__name {
    font-size: 0.95rem;
    color: var(--muted);
}

.price-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-weight: 600;
    white-space: nowrap;
    background: var(--surface-alt);
}

.price-tag--inline {
    display: inline-flex;
}

.detail-chip-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.detail-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.65rem;
    background: var(--accent-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.82rem;
    color: var(--muted);
}

.sticky-summary {
    position: sticky;
    top: 6rem;
}

.breadcrumb {
    --bs-breadcrumb-divider: '/';
}

.breadcrumb a {
    color: var(--muted);
}

.breadcrumb-item.active {
    color: var(--text);
}

.price-block__amount {
    font-size: clamp(1.9rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.05em;
}

.price-block__caption {
    color: var(--muted);
    margin-top: 0.35rem;
}

.detail-grid {
    display: grid;
    gap: 0.85rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.detail-grid > div {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 0.9rem 1rem;
    background: var(--surface-alt);
}

.detail-grid__label {
    display: block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.3rem;
}

.purchase-box {
    padding: 1rem;
    background: var(--surface-alt);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.quantity-field {
    display: grid;
    grid-template-columns: 48px minmax(84px, 110px) 48px;
    gap: 0.75rem;
    align-items: center;
}

.quantity-field .btn {
    padding: 0.55rem 0.75rem;
}

.quantity-field .form-control {
    font-weight: 600;
}

.quantity-field--compact {
    grid-template-columns: 40px 84px 40px;
    gap: 0.5rem;
}

.section-divider {
    height: 1px;
    background: var(--line);
    margin: 1.5rem 0;
}

.choice-card {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1rem;
    height: 100%;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.choice-title {
    font-weight: 600;
    color: var(--text);
}

.choice-copy {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.6;
}

.btn-check:checked + .choice-card {
    border-color: var(--text);
    box-shadow: inset 0 0 0 1px var(--text);
    background: var(--surface-alt);
}

.empty-state-card {
    padding: min(8vw, 3rem);
    max-width: 52rem;
}

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
}

.cart-item__body {
    flex: 1;
}

.cart-item__title {
    font-size: 1.05rem;
    margin: 0;
    font-weight: 700;
}

.cart-item__total {
    font-weight: 700;
    font-size: 1rem;
}

.info-box {
    padding: 1rem 1.1rem;
    background: var(--surface-alt);
    border-radius: var(--radius-md);
}

.order-table thead th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
}

.order-table tbody td,
.order-table tfoot td {
    border-bottom: 1px solid var(--line);
    padding: 0.85rem 0;
}

.order-table tfoot tr:last-child td {
    border-bottom: 0;
    padding-bottom: 0;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--line);
    background: var(--surface-alt);
}

.status-pill--pending {
    background: #fff8eb;
    border-color: #f3d28a;
    color: #8a5a00;
}

.status-pill--processing {
    background: #f4f4f5;
    border-color: #d4d4d8;
    color: #3f3f46;
}

.status-pill--shipping {
    background: #eef2ff;
    border-color: #c7d2fe;
    color: #3730a3;
}

.status-pill--done {
    background: #ecfdf3;
    border-color: #bbf7d0;
    color: #166534;
}

.status-pill--cancelled {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.status-legend {
    display: grid;
    gap: 0.75rem;
}

.status-legend__item {
    display: grid;
    gap: 0.4rem;
}

.timeline-list {
    display: grid;
    gap: 1rem;
}

.timeline-step {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    opacity: 0.72;
}

.timeline-step__dot {
    width: 0.9rem;
    height: 0.9rem;
    margin-top: 0.35rem;
    border-radius: 999px;
    background: var(--line-strong);
    flex-shrink: 0;
}

.timeline-step__title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-step__copy {
    color: var(--muted);
    line-height: 1.6;
}

.timeline-step.is-complete,
.timeline-step.is-current {
    opacity: 1;
    border-color: var(--line-strong);
}

.timeline-step.is-complete .timeline-step__dot {
    background: var(--success);
}

.timeline-step.is-current .timeline-step__dot {
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(23, 23, 23, 0.08);
}

.toast-stack {
    z-index: 1080;
}

.toast-theme {
    background: rgba(23, 23, 23, 0.96);
    color: #ffffff;
    border: 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.toast-theme--success {
    background: rgba(22, 101, 52, 0.96);
}

.toast-theme--warning {
    background: rgba(146, 64, 14, 0.96);
}

.toast-theme--danger {
    background: rgba(153, 27, 27, 0.96);
}

.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.7);
}

.footer-title {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
}

.footer-copy {
    color: var(--muted);
    margin: 0;
    max-width: 36rem;
    line-height: 1.6;
}

.footer-links a {
    color: var(--muted);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--text);
}

.alert {
    border-radius: var(--radius-md);
}

@media (max-width: 991.98px) {
    .sticky-summary {
        position: static;
    }

    .product-visual--mini {
        width: 100%;
        min-height: 10rem;
    }
}

@media (max-width: 767.98px) {
    .hero-panel,
    .surface-panel,
    .summary-card,
    .feature-card,
    .step-card,
    .empty-state-card,
    .cart-item,
    .product-card__body {
        padding: 1rem;
    }

    .display-title {
        max-width: none;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .cart-item {
        flex-direction: column;
    }

    .quantity-field {
        grid-template-columns: 44px minmax(72px, 1fr) 44px;
    }
}

.diagram-showcase,
.actor-panel,
.documentation-note,
.code-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.documentation-note {
    padding: 1rem 1.15rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8f7f4 100%);
}

.documentation-note strong {
    display: block;
    margin-bottom: 0.35rem;
}

.documentation-note p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.diagram-showcase {
    padding: clamp(1rem, 2vw, 1.5rem);
    background: linear-gradient(180deg, #fffcf7 0%, #f6f4ef 100%);
}

.diagram-scroll {
    overflow-x: auto;
}

.diagram-scroll svg {
    display: block;
    width: 100%;
    height: auto;
    min-width: 960px;
}

.diagram-boundary {
    fill: rgba(255, 255, 255, 0.92);
    stroke: #2b2927;
    stroke-width: 2;
}

.diagram-node {
    fill: #ffffff;
    stroke: #2b2927;
    stroke-width: 2.25;
}

.diagram-connector {
    fill: none;
    stroke: #a8a29e;
    stroke-width: 2;
    stroke-linecap: round;
}

.diagram-actor {
    fill: none;
    stroke: #2b2927;
    stroke-width: 2.75;
    stroke-linecap: round;
}

.diagram-title {
    font: 700 24px 'Inter', sans-serif;
    fill: #171717;
}

.diagram-actor-label,
.diagram-node-label {
    font: 600 18px 'Inter', sans-serif;
    fill: #171717;
}

.diagram-node-label--small,
.diagram-boundary-label {
    font: 500 16px 'Inter', sans-serif;
    fill: #57534e;
}

.actor-panel {
    padding: 1.4rem;
    height: 100%;
}

.actor-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.actor-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 5rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: var(--accent-soft);
    border: 1px solid var(--line);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.actor-panel h2,
.actor-panel h3 {
    font-size: 1.2rem;
    margin: 0;
}

.actor-panel p {
    color: var(--muted);
    line-height: 1.7;
}

.usecase-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: grid;
    gap: 0.75rem;
}

.usecase-list li {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
}

.usecase-list span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.8rem;
    height: 1.8rem;
    flex-shrink: 0;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
    font-size: 0.8rem;
    font-weight: 700;
}

.code-panel {
    overflow: hidden;
}

.code-panel summary {
    cursor: pointer;
    padding: 1rem 1.15rem;
    font-weight: 600;
    list-style: none;
}

.code-panel summary::-webkit-details-marker {
    display: none;
}

.code-panel pre {
    margin: 0;
    padding: 0 1.15rem 1.15rem;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--text);
    background: transparent;
}

.code-panel code {
    font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
}


.payment-info-card,
.auth-side-card,
.auth-panel,
.account-stat {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.payment-info-card {
    padding: 1.35rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8f7f4 100%);
}

.payment-info-card__label {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.7rem;
    margin-bottom: 0.85rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.payment-info-card__copy,
.payment-info-card__instruction {
    color: var(--muted);
    line-height: 1.7;
}

.payment-info-card__instruction {
    padding-top: 0.85rem;
    margin-top: 0.85rem;
    border-top: 1px solid var(--line);
}

.contact-panel {
    height: 100%;
}

.contact-checklist {
    display: grid;
    gap: 0.85rem;
}

.contact-checklist__item {
    display: grid;
    gap: 0.25rem;
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
}

.contact-checklist__item span {
    color: var(--muted);
    line-height: 1.65;
}

.auth-sidebar {
    display: grid;
    gap: 1rem;
    position: sticky;
    top: 6rem;
}

.auth-side-card {
    padding: 1.25rem;
}

.sidebar-link-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.sidebar-link-list li a {
    display: block;
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    transition: all 0.2s ease;
}

.sidebar-link-list li a:hover {
    border-color: var(--text);
    background: var(--surface);
    transform: translateY(-1px);
}

.sidebar-link-list strong {
    display: block;
    margin-bottom: 0.2rem;
}

.sidebar-link-list span {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.sidebar-metric {
    font-size: clamp(2.1rem, 4vw, 2.8rem);
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.05em;
    margin: 0.3rem 0 0.75rem;
}

.auth-shell {
    padding: clamp(1.2rem, 2vw, 2rem);
}

.auth-toggle {
    display: inline-flex;
    gap: 0.4rem;
    padding: 0.35rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-alt);
}

.toggle-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    color: var(--muted);
    font-weight: 600;
    transition: all 0.2s ease;
}

.toggle-pill:hover,
.toggle-pill.is-active {
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.auth-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.35rem;
    height: 100%;
}

.auth-panel--active {
    border-color: var(--line-strong);
    box-shadow: inset 0 0 0 1px rgba(23, 23, 23, 0.08), var(--shadow-sm);
}

.auth-panel__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.auth-note {
    margin-top: 1rem;
    color: var(--muted);
}

.auth-note a {
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.auth-state-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    padding: 0.45rem 0.75rem;
    margin-bottom: 0.8rem;
    border-radius: 999px;
    background: #ecfdf3;
    border: 1px solid #bbf7d0;
    color: #166534;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.account-stat {
    padding: 1rem 1.1rem;
    height: 100%;
    background: linear-gradient(180deg, #ffffff 0%, #f8f7f4 100%);
}

.account-stat__label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

@media (max-width: 991.98px) {
    .auth-sidebar {
        position: static;
    }
}

@media (max-width: 767.98px) {
    .auth-shell,
    .auth-panel,
    .auth-side-card,
    .payment-info-card,
    .account-stat {
        padding: 1rem;
    }

    .auth-toggle {
        display: flex;
        width: 100%;
    }

    .toggle-pill {
        flex: 1;
        text-align: center;
    }
}