body.framework-page {
    min-height: 100svh;
    background: linear-gradient(180deg, rgba(14, 14, 17, 1) 0%, rgba(10, 10, 12, 1) 100%);
    background-attachment: scroll;
}

body.framework-page.framework-page--playground {
    overflow-x: hidden;
    overflow-y: hidden;
}

.framework-page-shell {
    width: min(1880px, calc(100vw - 0.5rem));
    height: 100svh;
    margin: 0 auto;
    padding: calc(var(--nav-height) + 0.35rem) 0.25rem 0.25rem;
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    gap: 0;
    align-content: start;
}

.framework-page__masthead {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.framework-page__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 0;
    text-decoration: none;
}

.framework-page__brand-logo {
    border-radius: 0.75rem;
    box-shadow: 0 0 0 1px rgba(163, 184, 199, 0.18);
}

.framework-page__brand-copy {
    display: grid;
    gap: 0.08rem;
}

.framework-page__brand-wordmark {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--steel-edge);
}

.framework-page__brand-tag {
    color: var(--steel-dark);
    font-family: var(--font-head);
    font-size: 0.76rem;
    letter-spacing: 0.04em;
}

.framework-page__nav {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    flex-wrap: wrap;
}

.framework-page__nav-link,
.framework-page__back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.35rem;
    padding: 0.65rem 0.95rem;
    border: 1px solid rgba(163, 184, 199, 0.14);
    border-radius: 999px;
    background: rgba(18, 20, 24, 0.72);
    color: var(--steel-edge);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.framework-page__nav-link:hover,
.framework-page__nav-link:focus-visible,
.framework-page__back:hover,
.framework-page__back:focus-visible {
    border-color: rgba(184, 115, 51, 0.36);
    background: rgba(32, 23, 18, 0.78);
    color: var(--copper-bright);
    outline: none;
    transform: translateY(-1px);
}

.framework-page__nav-link[aria-current="page"] {
    border-color: rgba(184, 115, 51, 0.38);
    background: rgba(184, 115, 51, 0.12);
    color: var(--copper-bright);
}

.framework-page__intro {
    display: grid;
    align-items: center;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
}

.framework-page__intro-copy {
    display: grid;
    gap: 0.28rem;
    max-width: 72ch;
}

.framework-page__intro-line {
    color: var(--steel-dark);
    font-size: 0.95rem;
    line-height: 1.45;
}

.framework-playground__kicker {
    font-family: var(--font-mono);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-size: 0.74rem;
    color: var(--copper-bright);
}

.framework-playground {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: clamp(0.9rem, 1.3vw, 1.15rem);
    background:
        radial-gradient(circle at 20% 18%, rgba(184, 115, 51, 0.08), transparent 26%),
        radial-gradient(circle at 82% 12%, rgba(163, 184, 199, 0.08), transparent 24%),
        linear-gradient(180deg, rgba(18, 19, 23, 0.94) 0%, rgba(10, 10, 12, 0.96) 100%);
    box-shadow: var(--shadow);
    display: grid;
    gap: 0.85rem;
    height: 100%;
    min-height: 0;
}

.framework-playground--standalone {
    gap: 0;
    grid-template-rows: minmax(0, 1fr);
}

.framework-playground__meta {
    display: block;
    min-width: 0;
}

.framework-playground__meta-copy {
    display: grid;
    gap: 0.45rem;
    max-width: 54rem;
}

.framework-playground__heading {
    font-size: clamp(1.75rem, 3.4vw, 3rem);
    line-height: 1.05;
}

.framework-playground__lede {
    color: var(--steel-dark);
    max-width: 60ch;
    font-size: 0.98rem;
}

.framework-playground__body {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(248px, 18vw, 298px);
    grid-template-rows: auto minmax(0, 1fr);
    gap: clamp(1rem, 1.4vw, 1.8rem);
    align-items: stretch;
    align-content: stretch;
    justify-content: center;
    padding: 0 0.35rem 0 0.65rem;
}

.framework-playground__board-column {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    align-self: stretch;
}

.framework-playground__side-column {
    grid-column: 2;
    grid-row: 2;
    width: auto;
    height: auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0.8rem;
    min-width: 0;
    overflow: visible;
    padding: 0.15rem 0.15rem 0.15rem 0;
}

.framework-playground__press-kicker {
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.74rem;
    color: var(--patina);
}

.framework-playground__pressline {
    grid-column: 1 / -1;
    grid-row: 1;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    min-width: 0;
    font-family: var(--font-mono);
    color: var(--steel-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    margin: 0;
    padding: 0.1rem 0 0.15rem;
}

.framework-playground__press-copy {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.framework-playground__stage {
    position: relative;
    width: 100%;
    flex: 1 1 auto;
    height: auto;
    min-height: 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(34, 34, 31, 0.4) 0%, rgba(12, 12, 13, 0.85) 100%),
        url('background-stone.webp');
    background-size: cover;
    background-position: center;
    background-blend-mode: multiply;
    overflow: hidden;
    box-shadow: inset 0 0 60px rgba(0,0,0,0.5);
}

.framework-playground__canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.framework-playground__overlay {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    display: grid;
    gap: 0.45rem;
    min-width: 164px;
    padding: 1rem 1.1rem;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    background: rgba(8, 9, 11, 0.82);
    backdrop-filter: var(--blur);
    box-shadow: var(--shadow);
    z-index: 5;
}

.framework-playground__overlay span,
.framework-playground__overlay strong {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.framework-playground__overlay span {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--steel);
    font-size: 0.7rem;
}

.framework-playground__overlay strong {
    color: var(--stone-light);
    font-size: 0.88rem;
}

.framework-playground__overlay .is-hot {
    color: #e17d6e;
    animation: hot-pulse 1s infinite alternate;
}

@keyframes hot-pulse {
    from { text-shadow: 0 0 2px rgba(225, 125, 110, 0); }
    to { text-shadow: 0 0 12px rgba(225, 125, 110, 0.8); }
}

.framework-playground__side-kicker {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--steel-dark);
}

.framework-playground__controls {
    margin-top: 0;
    min-width: 0;
}

.framework-playground__controls-inner {
    display: grid;
    gap: 0.72rem;
    padding: 0.35rem 0 0.15rem;
}

.framework-playground__control-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: rgba(163, 184, 199, 0.05);
    color: var(--stone-light);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.framework-playground__control-btn:hover {
    border-color: var(--copper-bright);
    background: rgba(184, 115, 51, 0.15);
    color: var(--copper-bright);
    box-shadow: 0 0 15px rgba(184, 115, 51, 0.2);
}

.framework-playground__action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.72rem 0.95rem;
    border: 1px solid rgba(184, 115, 51, 0.4);
    border-radius: var(--radius-md);
    background: rgba(184, 115, 51, 0.1);
    color: var(--copper-bright);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0.5rem;
}

.framework-playground__action-btn--muted {
    border-color: rgba(163, 184, 199, 0.18);
    background: rgba(163, 184, 199, 0.08);
    color: var(--steel-edge);
}

.framework-playground__action-btn--muted:hover {
    border-color: rgba(163, 184, 199, 0.3);
    background: rgba(163, 184, 199, 0.12);
    box-shadow: 0 4px 20px rgba(163, 184, 199, 0.12);
}

.framework-playground__action-btn:hover {
    border-color: var(--copper-bright);
    background: rgba(184, 115, 51, 0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(184, 115, 51, 0.2);
}

.framework-playground__controls-inner input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--copper-bright) 0%, var(--copper-bright) var(--range-pct, 0%), rgba(163, 184, 199, 0.14) var(--range-pct, 0%), rgba(163, 184, 199, 0.14) 100%);
    border-radius: 999px;
    outline: none;
    margin: 0.6rem 0;
    cursor: pointer;
}

.framework-playground__controls-inner input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--stone-light);
    border: 3px solid var(--copper-bright);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(184, 115, 51, 0.6);
    transition: transform 0.1s ease;
}

.framework-playground__controls-inner input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(1.2);
}

.framework-playground__controls-inner input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--copper-bright);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(184, 115, 51, 0.4);
}

.framework-playground__side-copy {
    color: var(--steel);
    font-size: 0.8rem;
    line-height: 1.4;
    min-height: 2.2rem;
}

.framework-playground__rail-shell {
    position: relative;
    width: 100%;
    min-width: 0;
}

.framework-playground__rail {
    display: grid;
    grid-template-columns: repeat(11, minmax(0, 1fr));
    gap: 0.55rem;
    width: 100%;
    min-width: 0;
    overflow: visible;
    padding: 0.15rem 0 0.35rem;
}

.framework-playground__rail--stack {
    grid-template-columns: 1fr;
    gap: 0.08rem;
}

.framework-playground__chip {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-width: 0;
    padding: 0.34rem 0 0.34rem 0.75rem;
    border: 0;
    border-left: 1px solid rgba(163, 184, 199, 0.16);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--stone-light);
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.framework-playground__chip:hover {
    border-left-color: rgba(184, 115, 51, 0.36);
    background: transparent;
}

.framework-playground__chip.is-active {
    border-left-color: rgba(184, 115, 51, 0.78);
    background: transparent;
}

.framework-playground__chip.is-done {
    border-left-color: rgba(90, 138, 122, 0.3);
}

.framework-playground__chip-label {
    font-family: 'IBM Plex Mono', 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 0.71rem;
    letter-spacing: 0.07em;
    line-height: 1;
    text-transform: uppercase;
    white-space: nowrap;
}

.framework-playground__chip::after {
    content: attr(data-framework-tooltip);
    position: absolute;
    right: calc(100% + 0.8rem);
    top: 50%;
    transform: translate(0.35rem, -50%);
    width: 240px;
    padding: 0.72rem 0.82rem;
    border: 1px solid rgba(163, 184, 199, 0.16);
    border-radius: 14px;
    background: rgba(9, 10, 13, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    color: var(--stone-light);
    font-family: var(--font-head);
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.35;
    text-transform: none;
    letter-spacing: normal;
    text-align: left;
    opacity: 0;
    pointer-events: none;
    z-index: 10;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.framework-playground__chip:hover::after,
.framework-playground__chip:focus-visible::after {
    opacity: 1;
    transform: translate(0, -50%);
}

.framework-playground__prompt {
    position: absolute;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    width: fit-content;
    max-width: calc(100% - 2rem);
    padding: 0.72rem 0.9rem;
    border: 1px solid rgba(163, 184, 199, 0.14);
    border-radius: 999px;
    background: rgba(7, 9, 12, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.framework-playground__prompt-mark,
.framework-playground__prompt-command {
    font-family: 'IBM Plex Mono', 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.framework-playground__prompt-mark {
    color: var(--steel-dark);
}

.framework-playground__prompt-command {
    color: var(--stone-light);
}

.framework-playground__prompt-command.is-live {
    color: var(--copper-bright);
}

.framework-page--playground .framework-playground {
    height: 100%;
    min-height: 0;
}

.framework-page--playground .framework-playground__stage {
    min-height: 0;
}

@media (max-width: 960px) {
    body.framework-page.framework-page--playground {
        overflow-y: auto;
    }

    .framework-page-shell {
        width: min(100vw - 0.5rem, 1880px);
        height: auto;
        min-height: 100svh;
        padding: calc(var(--nav-height) + 0.35rem) 0.25rem 0.5rem;
    }

    .framework-page__intro {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .framework-playground__body {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: 1rem;
        padding: 0;
    }

    .framework-playground__pressline,
    .framework-playground__board-column,
    .framework-playground__side-column {
        grid-column: 1;
    }

    .framework-playground__pressline {
        grid-row: 1;
    }

    .framework-playground__board-column {
        grid-row: 2;
    }

    .framework-playground__stage {
        height: auto;
        min-height: clamp(500px, 64vh, 760px);
    }

    .framework-playground__side-column {
        grid-row: 3;
        padding: 0;
    }

    .framework-playground__rail--stack {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.55rem;
    }

    .framework-playground__chip {
        min-height: 2.65rem;
        padding: 0.65rem 0.75rem;
        justify-content: center;
        border: 1px solid rgba(163, 184, 199, 0.12);
        border-radius: var(--radius-md);
        background: rgba(17, 18, 22, 0.82);
    }

    .framework-playground__chip:hover {
        border-color: rgba(184, 115, 51, 0.28);
    }

    .framework-playground__chip.is-active {
        background: rgba(27, 20, 15, 0.92);
        box-shadow: 0 0 0 1px rgba(184, 115, 51, 0.18);
    }

    .framework-playground__chip::after {
        left: 50%;
        right: auto;
        width: max-content;
        max-width: min(26rem, 44vw);
        transform: translate(-50%, 0.35rem);
    }

    .framework-playground__chip:hover::after,
    .framework-playground__chip:focus-visible::after {
        transform: translate(-50%, 0);
    }
}

@media (max-width: 640px) {
    .framework-page-shell {
        width: min(100vw - 0.4rem, 1880px);
        padding: calc(var(--nav-height) + 0.25rem) 0.2rem 0.35rem;
    }

    .framework-page__masthead {
        align-items: flex-start;
    }

    .framework-page__nav {
        width: 100%;
    }

    .framework-page__nav-link,
    .framework-page__back {
        flex: 1 1 calc(50% - 0.45rem);
    }

    .framework-page__intro {
        gap: 0.7rem;
    }

    .framework-playground__overlay {
        left: auto;
        right: 0.8rem;
        min-width: 134px;
    }

    .framework-playground__pressline {
        white-space: nowrap;
    }

    .framework-playground__stage {
        min-height: 340px;
    }

    .framework-playground__prompt {
        left: 0.8rem;
        right: 0.8rem;
        width: auto;
    }

    .framework-playground__rail {
        gap: 0.38rem;
    }

    .framework-playground__rail--stack {
        grid-template-columns: 1fr;
    }

    .framework-playground__chip {
        min-height: 2.4rem;
        padding: 0.42rem 0.5rem;
    }

    .framework-playground__chip-label {
        font-size: 0.72rem;
        letter-spacing: 0.04em;
    }

    .framework-playground__chip::after {
        left: 0;
        right: 0;
        bottom: calc(100% + 0.55rem);
        transform: translate(0, 0.35rem);
        width: auto;
        max-width: none;
    }

    .framework-playground__chip:hover::after,
    .framework-playground__chip:focus-visible::after {
        transform: translate(0, 0);
    }
}