:root {
    --ptx-legacy-indigo: #6366f1;
    --ptx-legacy-violet: #8b5cf6;
    --ptx-legacy-navy: #080032;
    --ptx-legacy-white: #ffffff;
    --ptx-legacy-ink: #10162a;
    --ptx-legacy-muted: #5d6885;
    --ptx-legacy-line: rgba(8, 0, 50, 0.14);
    --ptx-legacy-panel: rgba(255, 255, 255, 0.92);
    --ptx-legacy-shadow: 0 20px 60px rgba(8, 0, 50, 0.18);
}

.ptx-legacy-shell-workflow {
    color: var(--ptx-legacy-ink);
    background:
        radial-gradient(circle at top left, rgba(99, 102, 241, 0.18), transparent 36%),
        radial-gradient(circle at top right, rgba(139, 92, 246, 0.16), transparent 34%),
        linear-gradient(180deg, #f7f7ff 0%, #ffffff 42%, #f5f6fb 100%);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    line-height: 1.55;
}

.ptx-shell-header,
.ptx-shell-hero,
.ptx-shell-card-grid,
.ptx-legal-layout,
.ptx-state-rail,
.ptx-shell-footer {
    width: min(1120px, calc(100% - 2rem));
    margin-inline: auto;
}

.ptx-shell-header {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0 0;
}

.ptx-brand-lockup {
    display: inline-flex;
    gap: 0.75rem;
    align-items: center;
    color: var(--ptx-legacy-navy);
    text-decoration: none;
}

.ptx-brand-mark {
    display: inline-grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.8rem;
    color: var(--ptx-legacy-white);
    background: linear-gradient(135deg, var(--ptx-legacy-indigo), var(--ptx-legacy-violet));
    box-shadow: var(--ptx-legacy-shadow);
    font-weight: 700;
}

.ptx-brand-wordmark,
.ptx-shell-kicker {
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ptx-brand-wordmark {
    font-weight: 700;
}

.ptx-primary-nav,
.ptx-header-actions,
.ptx-action-row,
.ptx-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.ptx-primary-nav__link,
.ptx-compat-link {
    color: var(--ptx-legacy-navy);
    text-decoration: none;
}

.ptx-primary-nav__link {
    padding: 0.35rem 0.15rem;
    border-bottom: 2px solid transparent;
    font-weight: 700;
}

.ptx-primary-nav__link.is-current {
    border-color: var(--ptx-legacy-indigo);
}

.ptx-compat-link {
    color: var(--ptx-legacy-muted);
    font-size: 0.92rem;
}

.ptx-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.9rem;
    padding: 0.7rem 1rem;
    border: 1px solid var(--ptx-legacy-line);
    border-radius: 999px;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.ptx-button-primary {
    color: var(--ptx-legacy-white);
    background: linear-gradient(135deg, var(--ptx-legacy-indigo), var(--ptx-legacy-violet));
    border-color: transparent;
    box-shadow: 0 14px 30px rgba(99, 102, 241, 0.28);
}

.ptx-button-secondary {
    color: var(--ptx-legacy-navy);
    background: rgba(255, 255, 255, 0.84);
}

.ptx-legacy-shell-workflow :is(a, button, input, textarea):focus-visible {
    outline: 3px solid #f4b740;
    outline-offset: 4px;
}

.ptx-shell-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 0.9fr);
    gap: 1.25rem;
    align-items: end;
    padding: clamp(1.5rem, 6vw, 4rem) 0 1.5rem;
}

.ptx-shell-copy,
.ptx-status-panel,
.ptx-info-card,
.ptx-legal-article,
.ptx-legal-toc {
    border: 1px solid var(--ptx-legacy-line);
    background: var(--ptx-legacy-panel);
    box-shadow: var(--ptx-legacy-shadow);
    backdrop-filter: blur(12px);
}

.ptx-shell-copy,
.ptx-status-panel {
    border-radius: 1.5rem;
    padding: clamp(1.2rem, 4vw, 2rem);
}

.ptx-shell-copy h1,
.ptx-shell-copy h2,
.ptx-info-card h2,
.ptx-legal-article h2,
.ptx-shell-footer h2 {
    font-family: Georgia, "Times New Roman", serif;
    overflow-wrap: anywhere;
}

.ptx-shell-copy h1 {
    margin: 0;
    font-size: clamp(2.5rem, 5vw, 4.6rem);
    line-height: 0.98;
}

.ptx-shell-lede {
    margin: 0.8rem 0 0;
    color: var(--ptx-legacy-navy);
    font-size: clamp(1.08rem, 2vw, 1.35rem);
    font-weight: 700;
}

.ptx-shell-support {
    max-width: 42rem;
    color: var(--ptx-legacy-muted);
}

.ptx-status-panel {
    align-self: stretch;
}

.ptx-state-pill {
    display: inline-flex;
    align-items: center;
    min-height: 1.95rem;
    padding: 0 0.75rem;
    border-radius: 999px;
    color: var(--ptx-legacy-white);
    background: var(--ptx-legacy-navy);
    font-size: 0.84rem;
    font-weight: 700;
}

.ptx-chip-list {
    padding: 0;
    list-style: none;
}

.ptx-chip-list li {
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    color: var(--ptx-legacy-navy);
    background: rgba(99, 102, 241, 0.1);
    font-size: 0.9rem;
}

.ptx-shell-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    padding-bottom: 1.5rem;
}

.ptx-info-card {
    min-height: 100%;
    border-radius: 1.25rem;
    padding: 1.15rem;
}

.ptx-info-card h2 {
    margin: 0 0 0.5rem;
    font-size: 1.2rem;
}

.ptx-info-card p,
.ptx-footer-column p,
.ptx-legal-article p {
    overflow-wrap: anywhere;
}

.ptx-legal-layout {
    display: grid;
    grid-template-columns: minmax(14rem, 18rem) minmax(0, 1fr);
    gap: 1rem;
    padding-bottom: 1.5rem;
}

.ptx-legal-toc,
.ptx-legal-article {
    border-radius: 1.25rem;
    padding: 1.15rem;
}

.ptx-legal-toc {
    display: grid;
    gap: 0.65rem;
    align-self: start;
    position: sticky;
    top: 1rem;
}

.ptx-legal-toc a {
    color: var(--ptx-legacy-navy);
    text-decoration: none;
    font-weight: 700;
}

.ptx-legal-article section + section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ptx-legacy-line);
}

.ptx-state-rail {
    display: grid;
    gap: 0.75rem;
    padding-bottom: 1.5rem;
}

.ptx-state-rail > [data-state-panel] {
    display: none;
    border-inline-start: 4px solid var(--ptx-legacy-indigo);
    border-radius: 0.85rem;
    background: rgba(255, 255, 255, 0.9);
    padding: 0.85rem 1rem;
    box-shadow: 0 10px 24px rgba(8, 0, 50, 0.12);
}

.ptx-legacy-shell-workflow[data-state="loading"] [data-state-panel="loading"],
.ptx-legacy-shell-workflow[data-state="empty"] [data-state-panel="empty"],
.ptx-legacy-shell-workflow[data-state="error"] [data-state-panel="error"],
.ptx-legacy-shell-workflow[data-state="denied"] [data-state-panel="denied"],
.ptx-legacy-shell-workflow[data-state="success"] [data-state-panel="success"] {
    display: block;
}

.ptx-shell-footer {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    padding: 1.3rem 0 2rem;
    color: var(--ptx-legacy-white);
}

.ptx-footer-column {
    min-height: 100%;
    border-radius: 1.2rem;
    padding: 1rem;
    background: linear-gradient(180deg, rgba(8, 0, 50, 0.95), rgba(20, 16, 82, 0.92));
}

.ptx-footer-column h2 {
    margin-top: 0;
    font-size: 1rem;
}

.ptx-footer-column a {
    display: block;
    margin-bottom: 0.45rem;
    color: rgba(255, 255, 255, 0.92);
    text-decoration: none;
}

@media (max-width: 1023px) {
    .ptx-shell-header,
    .ptx-shell-hero,
    .ptx-legal-layout {
        grid-template-columns: 1fr;
    }

    .ptx-shell-header {
        display: grid;
        justify-items: start;
    }

    .ptx-shell-card-grid,
    .ptx-shell-footer {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ptx-legal-toc {
        position: static;
    }
}

@media (max-width: 767px) {
    .ptx-shell-header,
    .ptx-shell-hero,
    .ptx-shell-card-grid,
    .ptx-shell-footer {
        width: min(100%, calc(100% - 1.25rem));
    }

    .ptx-shell-card-grid,
    .ptx-shell-footer {
        grid-template-columns: 1fr;
    }

    .ptx-header-actions,
    .ptx-primary-nav,
    .ptx-action-row {
        width: 100%;
    }

    .ptx-primary-nav {
        gap: 0.5rem 0.85rem;
    }

    .ptx-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ptx-legacy-shell-workflow *,
    .ptx-legacy-shell-workflow *::before,
    .ptx-legacy-shell-workflow *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

@media (forced-colors: active) {
    .ptx-legacy-shell-workflow {
        forced-color-adjust: none;
        color: CanvasText;
        background: Canvas;
    }

    .ptx-shell-copy,
    .ptx-status-panel,
    .ptx-info-card,
    .ptx-legal-article,
    .ptx-legal-toc,
    .ptx-footer-column {
        border-color: CanvasText;
        background: Canvas;
        color: CanvasText;
        box-shadow: none;
    }

    .ptx-button,
    .ptx-state-pill,
    .ptx-brand-mark {
        border: 1px solid CanvasText;
        color: CanvasText;
        background: Canvas;
    }
}