.gsn-framework {
    position: relative;
    overflow: hidden;
    padding-block: 132px;
    color: rgba(255, 255, 255, .72);
    background:
        radial-gradient(circle at 82% 20%, rgba(var(--gsn-purple-rgb), .4), transparent 28%),
        radial-gradient(circle at 12% 86%, rgba(var(--gsn-gold-rgb), .08), transparent 30%),
        #0c0a0f;
}

.gsn-framework::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .28;
    background-image:
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
    background-size: 78px 78px;
    mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
}

.gsn-framework > .gsn-container {
    position: relative;
    z-index: 1;
}

.gsn-framework__intro {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, .55fr);
    align-items: end;
    gap: 78px;
}

.gsn-framework__intro h2 {
    max-width: 910px;
    margin: 0;
    color: var(--gsn-white);
    font-size: clamp(2.8rem, 5.4vw, 5.8rem);
    line-height: .98;
    letter-spacing: -.058em;
}

.gsn-framework__summary p {
    margin: 0;
    color: rgba(255,255,255,.62);
    font-size: 1.02rem;
}

.gsn-framework__link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 26px;
    color: var(--gsn-gold);
    font-size: .88rem;
    font-weight: 800;
}

.gsn-framework__link span {
    transition: transform .25s ease;
}

.gsn-framework__link:hover span {
    transform: translate(3px, -3px);
}

.gsn-framework__experience {
    position: relative;
    display: grid;
    grid-template-columns: 42px minmax(0, .95fr) minmax(420px, .85fr);
    gap: 42px;
    margin-top: 92px;
}

.gsn-framework__rail {
    position: relative;
    width: 2px;
    min-height: 720px;
    margin: 18px auto;
    overflow: hidden;
    background: rgba(255,255,255,.12);
}

.gsn-framework__rail-progress {
    position: absolute;
    inset: 0 0 auto;
    height: 0%;
    background: linear-gradient(to bottom, var(--gsn-gold), var(--gsn-purple));
    box-shadow: 0 0 24px rgba(var(--gsn-gold-rgb), .52);
    transition: height .55s cubic-bezier(.22, 1, .36, 1);
}

.gsn-framework__steps {
    display: grid;
    gap: 14px;
}

.gsn-framework__step {
    position: relative;
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 22px;
    min-height: 132px;
    padding: 24px 26px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 22px;
    background: rgba(255,255,255,.025);
    cursor: pointer;
    transition:
        transform .3s ease,
        border-color .3s ease,
        background-color .3s ease,
        box-shadow .3s ease;
}

.gsn-framework__step:hover,
.gsn-framework__step:focus-visible,
.gsn-framework__step.is-active {
    transform: translateX(8px);
    border-color: rgba(var(--gsn-gold-rgb),.38);
    background:
        linear-gradient(135deg, rgba(var(--gsn-purple-rgb),.17), rgba(255,255,255,.035));
    box-shadow: 0 24px 60px rgba(0,0,0,.24);
    outline: none;
}

.gsn-framework__step-marker {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 50%;
    color: rgba(255,255,255,.42);
    background: rgba(255,255,255,.035);
    font-size: .76rem;
    font-weight: 800;
    transition: color .3s ease, border-color .3s ease, background-color .3s ease;
}

.gsn-framework__step.is-active .gsn-framework__step-marker {
    color: #171009;
    border-color: var(--gsn-gold);
    background: var(--gsn-gold);
}

.gsn-framework__step-content {
    align-self: center;
}

.gsn-framework__step-label {
    display: block;
    margin-bottom: 6px;
    color: var(--gsn-gold);
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.gsn-framework__step h3 {
    margin: 0;
    color: var(--gsn-white);
    font-size: clamp(1.25rem, 2vw, 1.65rem);
    letter-spacing: -.025em;
}

.gsn-framework__step p {
    max-width: 660px;
    margin: 10px 0 0;
    color: rgba(255,255,255,.5);
    font-size: .9rem;
    line-height: 1.65;
}

.gsn-framework__panel {
    position: sticky;
    top: 112px;
    align-self: start;
    min-height: 660px;
    padding: 30px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 30px;
    background:
        linear-gradient(145deg, rgba(255,255,255,.105), rgba(255,255,255,.025)),
        rgba(13,9,17,.76);
    box-shadow:
        inset 0 1px rgba(255,255,255,.12),
        0 40px 100px rgba(0,0,0,.36);
    backdrop-filter: blur(20px);
}

.gsn-framework__panel-top {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    color: rgba(255,255,255,.52);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.gsn-framework__panel-top small {
    color: var(--gsn-gold);
}

.gsn-framework__panel-visual {
    position: relative;
    min-height: 340px;
    display: grid;
    place-items: center;
}

.gsn-framework__pulse {
    position: absolute;
    border-radius: 50%;
    filter: blur(16px);
    transition: transform .6s ease;
}

.gsn-framework__pulse--one {
    width: 290px;
    height: 290px;
    background: radial-gradient(circle, rgba(var(--gsn-purple-rgb),.54), transparent 68%);
}

.gsn-framework__pulse--two {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(var(--gsn-gold-rgb),.16), transparent 70%);
}

.gsn-framework__system {
    position: relative;
    width: 270px;
    aspect-ratio: 1;
    border-radius: 50%;
}

.gsn-framework__system-ring {
    position: absolute;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 50%;
}

.gsn-framework__system-ring--one {
    inset: 0;
    animation: gsnFrameworkSpin 22s linear infinite;
}

.gsn-framework__system-ring--two {
    inset: 17%;
    border-color: rgba(var(--gsn-gold-rgb),.28);
    animation: gsnFrameworkSpinReverse 16s linear infinite;
}

.gsn-framework__system-ring--three {
    inset: 33%;
    border-style: dashed;
    animation: gsnFrameworkSpin 12s linear infinite;
}

.gsn-framework__system-ring::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gsn-gold);
    box-shadow: 0 0 18px rgba(var(--gsn-gold-rgb),.72);
}

.gsn-framework__system-core {
    position: absolute;
    inset: 35%;
    display: grid;
    place-items: center;
    align-content: center;
    border: 1px solid rgba(var(--gsn-gold-rgb),.36);
    border-radius: 50%;
    background: rgba(14,8,18,.84);
    box-shadow: 0 0 50px rgba(var(--gsn-purple-rgb),.44);
    text-align: center;
}

.gsn-framework__system-core strong {
    color: var(--gsn-white);
    font-size: 2rem;
    line-height: 1;
}

.gsn-framework__system-core span {
    margin-top: 6px;
    color: var(--gsn-gold);
    font-size: .55rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.gsn-framework__panel-copy {
    position: relative;
    z-index: 2;
    min-height: 190px;
    padding: 28px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 22px;
    background: rgba(255,255,255,.035);
}

.gsn-framework__panel-copy > span {
    color: var(--gsn-gold);
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.gsn-framework__panel-copy h3 {
    margin: 10px 0 0;
    color: var(--gsn-white);
    font-size: clamp(1.65rem, 3vw, 2.55rem);
    line-height: 1.08;
    letter-spacing: -.04em;
}

.gsn-framework__panel-copy p {
    margin: 16px 0 0;
    color: rgba(255,255,255,.55);
    font-size: .92rem;
}

[data-framework-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .75s ease, transform .75s cubic-bezier(.22,1,.36,1);
}

[data-framework-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes gsnFrameworkSpin {
    to { transform: rotate(360deg); }
}

@keyframes gsnFrameworkSpinReverse {
    to { transform: rotate(-360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .gsn-framework__system-ring {
        animation: none;
    }

    [data-framework-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (max-width: 1080px) {
    .gsn-framework__experience {
        grid-template-columns: 30px 1fr;
    }

    .gsn-framework__panel {
        position: relative;
        top: auto;
        grid-column: 2;
        min-height: auto;
    }
}

@media (max-width: 820px) {
    .gsn-framework {
        padding-block: 98px;
    }

    .gsn-framework__intro {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .gsn-framework__summary {
        max-width: 720px;
        margin-inline: auto;
    }

    .gsn-framework__experience {
        grid-template-columns: 1fr;
        margin-top: 68px;
    }

    .gsn-framework__rail {
        display: none;
    }

    .gsn-framework__panel {
        grid-column: auto;
    }
}

@media (max-width: 600px) {
    .gsn-framework {
        padding-block: 76px;
    }

    .gsn-framework__step {
        grid-template-columns: 50px 1fr;
        gap: 14px;
        padding: 20px 18px;
    }

    .gsn-framework__step-marker {
        width: 46px;
        height: 46px;
    }

    .gsn-framework__step:hover,
    .gsn-framework__step:focus-visible,
    .gsn-framework__step.is-active {
        transform: translateY(-3px);
    }

    .gsn-framework__panel {
        min-height: auto;
        padding: 20px;
        border-radius: 24px;
    }

    .gsn-framework__panel-visual {
        min-height: 280px;
    }

    .gsn-framework__system {
        width: 225px;
    }

    .gsn-framework__panel-copy {
        padding: 22px;
    }
}