:root {
    --trpg3-bg: #090b11;
    --trpg3-bg-soft: #0f1320;
    --trpg3-panel: #121725;
    --trpg3-panel-soft: #171326;
    --trpg3-line: rgba(217, 219, 234, 0.14);
    --trpg3-line-strong: rgba(217, 219, 234, 0.24);
    --trpg3-text: #f4f3f8;
    --trpg3-silver: #d9dbea;
    --trpg3-muted: #aeb3c4;
    --trpg3-subtle: #7d8398;
    --trpg3-violet: #9b8cff;
    --trpg3-violet-strong: #7d6ee0;
    --trpg3-violet-soft: rgba(155, 140, 255, 0.13);
    --trpg3-warm: #c7a56b;
    --trpg3-warm-soft: rgba(199, 165, 107, 0.13);
    --trpg3-danger: #e59b9b;
    --trpg3-success: #a8c99f;
    --trpg3-max: 1120px;
    --trpg3-radius: 18px;
}

body.trpg-v3 {
    color-scheme: dark;
    min-height: 100vh;
    margin: 0;
    color: var(--trpg3-text);
    background:
        radial-gradient(circle at 85% -8%, rgba(105, 81, 183, 0.2), transparent 28rem),
        radial-gradient(circle at -8% 38%, rgba(35, 54, 92, 0.24), transparent 30rem),
        linear-gradient(180deg, #0b0d14 0%, var(--trpg3-bg) 50%, #080a0f 100%);
    font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.75;

    /* Compatibility aliases for the existing functional styles. */
    --creator-bg: var(--trpg3-bg);
    --creator-bg-deep: #07090e;
    --creator-panel: rgba(217, 219, 234, 0.055);
    --creator-panel-strong: var(--trpg3-panel);
    --creator-line: var(--trpg3-line);
    --creator-text: var(--trpg3-text);
    --creator-muted: var(--trpg3-muted);
    --creator-accent: var(--trpg3-violet);
    --creator-accent-contrast: #090b11;
    --creator-accent-soft: var(--trpg3-violet-soft);

    --color-bg: var(--trpg3-bg);
    --color-bg-end: #080a0f;
    --color-glow: rgba(155, 140, 255, 0.12);
    --color-panel: rgba(18, 23, 37, 0.86);
    --color-panel-strong: var(--trpg3-panel);
    --color-panel-soft: var(--trpg3-bg-soft);
    --color-surface: rgba(217, 219, 234, 0.055);
    --color-surface-hover: var(--trpg3-violet-soft);
    --color-input: #0d111c;
    --color-overlay: rgba(3, 5, 10, 0.76);
    --color-border: var(--trpg3-line);
    --color-border-accent: rgba(155, 140, 255, 0.5);
    --color-text: var(--trpg3-text);
    --color-muted: var(--trpg3-muted);
    --color-accent: var(--trpg3-violet);
    --color-accent-contrast: #090b11;
    --color-accent-soft: var(--trpg3-violet-soft);
    --color-danger: var(--trpg3-danger);
    --color-danger-soft: rgba(229, 155, 155, 0.12);
    --focus-ring: 0 0 0 3px rgba(155, 140, 255, 0.22);

    --trpg-v2-ink: var(--trpg3-bg);
    --trpg-v2-ink-deep: #07090e;
    --trpg-v2-indigo: var(--trpg3-bg-soft);
    --trpg-v2-indigo-soft: #242039;
    --trpg-v2-paper: var(--trpg3-text);
    --trpg-v2-paper-muted: var(--trpg3-muted);
    --trpg-v2-line: var(--trpg3-line);
    --trpg-v2-line-strong: var(--trpg3-line-strong);
    --trpg-v2-brass: var(--trpg3-warm);
    --trpg-v2-violet: var(--trpg3-violet);
    --trpg-v2-danger: var(--trpg3-danger);
    --trpg-v2-max: var(--trpg3-max);
}

.trpg-v3 *,
.trpg-v3 *::before,
.trpg-v3 *::after {
    box-sizing: border-box;
}

.trpg-v3 a {
    color: inherit;
}

.trpg-v3 a:focus-visible,
.trpg-v3 button:focus-visible,
.trpg-v3 input:focus-visible,
.trpg-v3 select:focus-visible,
.trpg-v3 summary:focus-visible {
    outline: 2px solid var(--trpg3-violet);
    outline-offset: 3px;
}

.trpg-v3 button,
.trpg-v3 input,
.trpg-v3 select {
    font: inherit;
}

.trpg-shell-header {
    position: sticky;
    z-index: 80;
    top: 0;
    border-bottom: 1px solid var(--trpg3-line);
    background: rgba(9, 11, 17, 0.9);
}

@supports (backdrop-filter: blur(12px)) {
    .trpg-shell-header {
        backdrop-filter: blur(12px) saturate(1.08);
    }
}

.trpg-shell-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 18px;
    align-items: center;
    width: min(calc(100% - 40px), var(--trpg3-max));
    min-height: 64px;
    margin: 0 auto;
}

.trpg-shell-brand {
    display: inline-flex;
    gap: 8px;
    align-items: baseline;
    min-height: 44px;
    color: var(--trpg3-text);
    text-decoration: none;
}

.trpg-shell-brand span {
    color: var(--trpg3-silver);
    font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.trpg-shell-brand strong {
    color: var(--trpg3-violet);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .08em;
}

.trpg-shell-primary {
    display: flex;
    justify-content: center;
    gap: 4px;
}

.trpg-shell-primary a,
.trpg-shell-menu summary {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 12px;
    border-radius: 999px;
    color: var(--trpg3-muted);
    font-size: .78rem;
    font-weight: 750;
    text-decoration: none;
    white-space: nowrap;
}

.trpg-shell-primary a:hover,
.trpg-shell-primary a[aria-current="page"] {
    color: var(--trpg3-text);
    background: var(--trpg3-violet-soft);
}

.trpg-shell-primary a[aria-current="page"] {
    color: #ded9ff;
}

.trpg-shell-menu {
    position: relative;
}

.trpg-shell-menu summary {
    border: 1px solid var(--trpg3-line);
    color: var(--trpg3-silver);
    list-style: none;
    cursor: pointer;
}

.trpg-shell-menu summary::-webkit-details-marker {
    display: none;
}

.trpg-shell-menu nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    display: grid;
    width: min(78vw, 270px);
    padding: 8px;
    border: 1px solid var(--trpg3-line-strong);
    border-radius: 16px;
    background: #0d1019;
    box-shadow: 0 24px 70px rgba(0, 0, 0, .42);
}

.trpg-shell-menu nav a {
    min-height: 44px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--trpg3-muted);
    font-size: .82rem;
    font-weight: 700;
    text-decoration: none;
}

.trpg-shell-menu nav a:hover,
.trpg-shell-menu nav a[aria-current="page"] {
    color: var(--trpg3-text);
    background: var(--trpg3-violet-soft);
}

.trpg-v3-main,
.trpg-v3 .v2-page,
.trpg-v3 .page,
.trpg-v3 .cx-page {
    width: min(calc(100% - 40px), var(--trpg3-max));
    margin-inline: auto;
    padding: 0 0 96px;
}

.trpg-v3-intro {
    display: grid;
    gap: 8px;
    padding: 46px 0 28px;
    border-bottom: 1px solid var(--trpg3-line);
}

.trpg-v3-kicker,
.trpg-v3 .cx-kicker,
.trpg-v3 .v2-kicker,
.trpg-v3 .section-label,
.trpg-v3 .v2-row-label {
    margin: 0;
    color: var(--trpg3-violet);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .05em;
}

.trpg-v3-intro h1 {
    margin: 0;
    color: var(--trpg3-text);
    font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;
    font-size: clamp(2.15rem, 6vw, 3.6rem);
    font-weight: 600;
    letter-spacing: -.025em;
    line-height: 1.12;
}

.trpg-v3-intro p:last-child {
    max-width: 620px;
    margin: 4px 0 0;
    color: var(--trpg3-muted);
    font-size: .95rem;
    line-height: 1.8;
}

.trpg-v3-section {
    padding: 38px 0;
    border-bottom: 1px solid var(--trpg3-line);
}

.trpg-v3-section__head {
    display: grid;
    gap: 6px;
    margin-bottom: 18px;
}

.trpg-v3-section__head h2,
.trpg-v3 .v2-section h2,
.trpg-v3 .section-head h2,
.trpg-v3 .cx-calendar-heading h2,
.trpg-v3 .cx-calendar-section-head h2 {
    margin: 0;
    color: var(--trpg3-text);
    font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;
    font-size: clamp(1.45rem, 3vw, 2.15rem);
    font-weight: 600;
    letter-spacing: -.02em;
    line-height: 1.3;
}

.trpg-v3-quick-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.trpg-v3-quick-grid a {
    display: grid;
    gap: 5px;
    min-height: 112px;
    padding: 18px;
    border: 1px solid var(--trpg3-line);
    border-radius: var(--trpg3-radius);
    background: rgba(217, 219, 234, 0.035);
    text-decoration: none;
}

.trpg-v3-quick-grid a:hover {
    border-color: rgba(155, 140, 255, .42);
    background: var(--trpg3-violet-soft);
}

.trpg-v3-quick-grid strong {
    color: var(--trpg3-text);
    font-size: .98rem;
}

.trpg-v3-quick-grid small {
    color: var(--trpg3-muted);
    font-size: .76rem;
    line-height: 1.55;
}

.trpg-mobile-dock {
    display: none;
}

.trpg-v3 .v2-app-shell,
.trpg-v3 .cx-calendar-app,
.trpg-v3 .search-panel,
.trpg-v3 .picker-workspace,
.trpg-v3 .picker-result-section,
.trpg-v3 .rules-document {
    color: var(--trpg3-text);
}

.trpg-v3 .v2-section,
.trpg-v3 .cx-section {
    padding-block: 34px;
}

.trpg-v3 .v2-section--sessions,
.trpg-v3 .cx-live-panel,
.trpg-v3 .cx-calendar-live {
    min-height: 0;
}

.trpg-v3 .v2-section--sessions {
    display: block;
}

.trpg-v3 .v2-section__head,
.trpg-v3 .cx-section__head {
    margin-bottom: 18px;
}

.trpg-v3 .v2-next-session,
.trpg-v3 .v2-panel,
.trpg-v3 .v2-card,
.trpg-v3 .v2-dashboard-card,
.trpg-v3 .v2-session-card {
    border-color: var(--trpg3-line);
}

.trpg-v3 .v2-command,
.trpg-v3 .button,
.trpg-v3 .cx-calendar-button,
.trpg-v3 .cx-calendar-link,
.trpg-v3 .text-button {
    min-height: 44px;
    border-color: var(--trpg3-line);
    color: var(--trpg3-silver);
}

.trpg-v3 .v2-command--primary,
.trpg-v3 .picker-submit-button,
.trpg-v3 .button:not(.button-ghost) {
    border-color: var(--trpg3-violet);
    color: #0a0c12;
    background: var(--trpg3-violet);
}

.trpg-v3 .v2-command--danger {
    border-color: rgba(229, 155, 155, .45);
    color: var(--trpg3-danger);
}

.trpg-v3 .v2-form-feedback--success {
    color: var(--trpg3-success);
}

.trpg-v3 .v2-form-feedback--error {
    color: var(--trpg3-danger);
}

/* Scenario Library */
.trpg-v3 .cx-library-search,
.trpg-v3 .picker-workspace,
.trpg-v3 .rules-document {
    margin-top: 28px;
    padding: 20px;
    border: 1px solid var(--trpg3-line);
    border-radius: var(--trpg3-radius);
    background: rgba(18, 23, 37, .7);
    box-shadow: none;
}

.trpg-v3 .section-head {
    gap: 14px;
}

.trpg-v3 .field > span,
.trpg-v3 .tag-filter-head,
.trpg-v3 .tag-search-field > span,
.trpg-v3 .picker-checkbox strong {
    color: var(--trpg3-silver);
    font-size: .78rem;
}

.trpg-v3 input,
.trpg-v3 select {
    min-height: 46px;
    border-color: var(--trpg3-line);
    border-radius: 10px;
    color: var(--trpg3-text);
    background: #0d111c;
}

.trpg-v3 input::placeholder {
    color: var(--trpg3-subtle);
}

.trpg-v3 .advanced-filters {
    margin-top: 14px;
    border-top: 1px solid var(--trpg3-line);
}

.trpg-v3 .advanced-filters > summary {
    min-height: 46px;
    display: flex;
    align-items: center;
    color: var(--trpg3-silver);
    font-size: .8rem;
    font-weight: 800;
}

.trpg-v3 .result-section,
.trpg-v3 .picker-result-section {
    margin-top: 34px;
}

.trpg-v3 .scenario-card,
.trpg-v3 .scenario-list-item,
.trpg-v3 .picker-result-card {
    border-color: var(--trpg3-line);
    border-radius: 14px;
    background: rgba(18, 23, 37, .66);
    box-shadow: none;
}

.trpg-v3 .picker-page {
    gap: 34px;
}

.trpg-v3 .picker-result-card h3 {
    font-size: 1.18rem;
}

.trpg-v3 .picker-form .field small,
.trpg-v3 .picker-checkbox small,
.trpg-v3 .picker-meta dt,
.trpg-v3 .picker-reasons > p,
.trpg-v3 .picker-rating {
    font-size: .75rem;
}

.trpg-v3 .picker-meta dd,
.trpg-v3 .picker-result-card__author,
.trpg-v3 .picker-share-status {
    font-size: .8rem;
}

/* Calendar */
.trpg-v3 .cx-calendar-intro,
.trpg-v3 .cx-scheduler-intro,
.trpg-v3 .cx-library-intro,
.trpg-v3 .cx-tool-head,
.trpg-v3 .cx-service-hero {
    display: none;
}

.trpg-v3 .cx-calendar-shell {
    gap: 24px;
}

.trpg-v3 .cx-calendar-month,
.trpg-v3 .cx-calendar-upcoming,
.trpg-v3 .cx-calendar-day-detail {
    border-color: var(--trpg3-line);
}

.trpg-v3 .cx-calendar-day {
    min-height: 76px;
    border-color: var(--trpg3-line);
}

.trpg-v3 .cx-calendar-day.is-selected {
    background: var(--trpg3-violet-soft);
    box-shadow: inset 0 0 0 1px rgba(155, 140, 255, .65);
}

.trpg-v3 .cx-calendar-day.is-today .cx-calendar-day__number,
.trpg-v3 .cx-upcoming-row__date,
.trpg-v3 .cx-day-session-row__time,
.trpg-v3 .cx-upcoming-group {
    color: var(--trpg3-warm);
}

.trpg-v3 .cx-calendar-day__event,
.trpg-v3 .cx-calendar-day__more {
    font-size: .7rem;
}

/* House rules */
.trpg-v3 .rules-document {
    max-width: none;
}

.trpg-v3 .rules-document h2,
.trpg-v3 .rules-document h3 {
    color: var(--trpg3-text);
}

/* Remove old in-page navigation once the shared shell is active. */
.trpg-v3 .cx-bottom-nav,
.trpg-v3 .v2-bottom-nav,
.trpg-v3 .creator-footer,
.trpg-v3 .site-footer,
.trpg-v3 .global-header,
.trpg-v3 .creator-local-header {
    display: none !important;
}

.trpg-shell-footer {
    width: min(calc(100% - 40px), var(--trpg3-max));
    margin: 0 auto;
    padding: 24px 0 34px;
    border-top: 1px solid var(--trpg3-line);
    color: var(--trpg3-subtle);
    font-size: .72rem;
}

@media (max-width: 760px) {
    .trpg-shell-header__inner {
        width: min(calc(100% - 28px), var(--trpg3-max));
        min-height: 58px;
    }

    .trpg-shell-primary {
        display: none;
    }

    .trpg-shell-brand {
        grid-column: 1 / 3;
    }

    .trpg-shell-menu {
        grid-column: 3;
    }

    .trpg-v3-main,
    .trpg-v3 .v2-page,
    .trpg-v3 .page,
    .trpg-v3 .cx-page {
        width: min(calc(100% - 28px), var(--trpg3-max));
        padding-bottom: 100px;
    }

    .trpg-v3-intro {
        gap: 6px;
        padding: 28px 0 20px;
    }

    .trpg-v3-intro h1 {
        font-size: clamp(2rem, 10vw, 2.55rem);
    }

    .trpg-v3-intro p:last-child {
        font-size: .93rem;
        line-height: 1.72;
    }

    .trpg-v3-section,
    .trpg-v3 .v2-section,
    .trpg-v3 .cx-section {
        padding-block: 28px;
    }

    .trpg-v3 .v2-section h2,
    .trpg-v3 .section-head h2,
    .trpg-v3 .cx-calendar-heading h2,
    .trpg-v3 .cx-calendar-section-head h2 {
        font-size: clamp(1.35rem, 6vw, 1.75rem);
    }

    .trpg-v3-quick-grid {
        grid-template-columns: 1fr;
    }

    .trpg-v3-quick-grid a {
        min-height: 82px;
        padding: 15px 16px;
    }

    .trpg-mobile-dock {
        position: fixed;
        z-index: 70;
        left: 50%;
        bottom: max(10px, env(safe-area-inset-bottom));
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        width: min(calc(100% - 20px), 520px);
        padding: 6px;
        border: 1px solid var(--trpg3-line-strong);
        border-radius: 18px;
        background: rgba(13, 16, 25, .95);
        box-shadow: 0 16px 50px rgba(0, 0, 0, .42);
        transform: translateX(-50%);
    }

    @supports (backdrop-filter: blur(12px)) {
        .trpg-mobile-dock {
            backdrop-filter: blur(14px) saturate(1.08);
        }
    }

    .trpg-mobile-dock a {
        display: grid;
        place-items: center;
        min-height: 46px;
        padding: 4px 5px;
        border-radius: 12px;
        color: var(--trpg3-muted);
        font-size: .7rem;
        font-weight: 800;
        text-decoration: none;
    }

    .trpg-mobile-dock a[aria-current="page"] {
        color: #e0dcff;
        background: var(--trpg3-violet-soft);
    }

    .trpg-v3 .cx-library-search,
    .trpg-v3 .picker-workspace,
    .trpg-v3 .rules-document {
        margin-top: 22px;
        padding: 16px;
        border-radius: 14px;
    }

    .trpg-v3 .filter-grid,
    .trpg-v3 .filter-grid--quick,
    .trpg-v3 .picker-form,
    .trpg-v3 .picker-results,
    .trpg-v3 .picker-card-actions {
        grid-template-columns: 1fr;
    }

    .trpg-v3 .picker-checkbox {
        grid-column: auto;
    }

    .trpg-v3 .picker-result-actions,
    .trpg-v3 .filter-action-buttons,
    .trpg-v3 .result-toolbar {
        justify-content: flex-start;
    }

    .trpg-v3 .picker-share-status {
        text-align: left;
    }

    .trpg-v3 .cx-calendar-day {
        position: relative;
        min-height: 52px;
        padding: 6px 4px;
        place-items: start center;
        text-align: center;
    }

    .trpg-v3 .cx-calendar-day__event,
    .trpg-v3 .cx-calendar-day__more {
        display: none;
    }

    .trpg-v3 .cx-calendar-day.has-session::after {
        position: absolute;
        left: 50%;
        bottom: 7px;
        width: 5px;
        height: 5px;
        border-radius: 999px;
        background: var(--trpg3-violet);
        content: "";
        transform: translateX(-50%);
    }

    .trpg-v3 .cx-calendar-day.is-selected.has-session::after {
        background: var(--trpg3-warm);
    }

    .trpg-v3 .cx-upcoming-row,
    .trpg-v3 .cx-day-session-row {
        grid-template-columns: 66px minmax(0, 1fr);
        min-height: 62px;
    }

    .trpg-v3 .cx-session-status,
    .trpg-v3 .cx-day-session-row__open {
        grid-column: 2;
        justify-self: start;
    }

    .trpg-v3 .cx-calendar-day__number,
    .trpg-v3 .cx-session-status,
    .trpg-v3 .cx-upcoming-row small,
    .trpg-v3 .cx-day-session-row small {
        font-size: .75rem;
    }

    .trpg-shell-footer {
        width: min(calc(100% - 28px), var(--trpg3-max));
        padding-bottom: 92px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .trpg-v3 *,
    .trpg-v3 *::before,
    .trpg-v3 *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}