.bg-purpel-gradient {
    background: linear-gradient(135deg, var(--color-white, #fff) 5%, rgba(131, 7, 222, 0.09) 100%);
}
.bg-orange-gradient {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.09) 5%, rgba(251, 217, 199, 0.6) 100%);
    color: #C1560E;
}
.bg-lightgreen-gradient {
    background: linear-gradient(135deg, var(--color-white, #fff) 5%, #C8ECC2 100%);
    color: var(--color-success);
}
.bg-lightblue-gradient {
    background: linear-gradient(135deg, var(--color-white, #fff) 5%, #D9E4FF 100%);
    color: #4884FF;
}

.plugin-card { min-height: 140px; }

.iconSize-50 { width: 50px; height: 50px; }

.proof-hub {
    position: relative;
    width: 100%;
    max-width: 1180px;
    margin: 50px auto 0;
    height: 400px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 24px;
    align-items: center;
    border-radius: 32px;
}

.proof-hub__rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
}
.proof-hub__ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}
.proof-hub__ring--1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(134, 14, 255, 0.14), rgba(255, 238, 253, 0.08) 60%, transparent 75%);
}
.proof-hub__ring--2 {
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(134, 14, 255, 0.07), transparent 70%);
}

.proof-hub__center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--color-white, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.proof-hub__node {
    position: relative;
    width: 100%;
    max-width: 400px;
    padding: 40px;
    border-radius: 16px;
    background: var(--color-white, #fff);
    border: none;
    box-shadow: 0 4px 24px rgba(29, 29, 29, 0.07);
    z-index: 2;
    overflow: hidden;
    transition: transform 0.25s var(--wc-ease, 0.3s cubic-bezier(.4,0,.2,1)), box-shadow 0.25s;
}
.proof-hub__node:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(134, 14, 255, 0.14);
}

.proof-hub__blob {
    position: absolute;
    top: -22px;
    border-radius: 50%;
    width: 109px;
    height: 119px;
    background-image: url("../img/left-icon.svg");
    z-index: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}
.proof-hub__node--tl .proof-hub__blob,
.proof-hub__node--bl .proof-hub__blob { right: -22px; }
.proof-hub__node--tr .proof-hub__blob,
.proof-hub__node--br .proof-hub__blob {
    left: -22px;
    background-image: url("../img/right-icon.svg");
}

.proof-hub__node h3,
.proof-hub__node p { position: relative; z-index: 1; }

.proof-hub__node--tl { grid-column: 1; grid-row: 1; justify-self: start; }
.proof-hub__node--tr { grid-column: 2; grid-row: 1; justify-self: end; }
.proof-hub__node--bl { grid-column: 1; grid-row: 2; justify-self: start; }
.proof-hub__node--br { grid-column: 2; grid-row: 2; justify-self: end; }

[data-bs-theme="dark"] .proof-hub__node { background: rgba(255, 255, 255, 0.05); }
[data-bs-theme="dark"] .proof-hub__center { background: var(--color-card, #14141F); }

@media (max-width: 768px) {
    .proof-hub {
        height: auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
        padding: 10px 12px 24px;
        background: none;
    }
    .proof-hub__center { position: static; transform: none; }
   
    .proof-hub__node { max-width: 100%; }
}

/* ---------- Otto Steps ---------- */
.otto-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    align-items: start;
}
.otto-step { text-align: center; }
.otto-step:nth-child(even) { margin-top: 74px; }

.otto-step__nwrap {
    height: 174px;
    display: grid;
    place-items: center;
    margin-bottom: 8px;
}
.otto-step__n {
    position: relative;
    width: 77px;
    height: 77px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    color: var(--color-heading);
    background: radial-gradient(circle at 50% 42%, #ffffff 0%, #efe7fb 100%);
    box-shadow: 0 0 0 20px rgba(131, 7, 222, 0.05), 0 0 0 45px rgba(131, 7, 222, 0.028);
    transition: all var(--wc-ease, 0.3s cubic-bezier(.4,0,.2,1));
}
.otto-step h3 {
    font-size: 1.16rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    color: var(--color-heading);
}
.otto-step p {
    font-size: 0.9rem;
    line-height: 1.45;
    color: var(--color-muted);
    margin: 0 auto;
    max-width: 260px;
}
.otto-step.is-active .otto-step__n {
    background: var(--wc-grad, linear-gradient(135deg, #9810fa 0%, #8307de 55%, #7700ce 100%));
    color: #fff;
    box-shadow: 0 0 0 20px rgba(131, 7, 222, 0.14), 0 0 0 45px rgba(131, 7, 222, 0.06), 0 16px 34px rgba(131, 7, 222, 0.45);
}
[data-bs-theme="dark"] .otto-step__n {
    background: radial-gradient(circle at 50% 42%, #201938 0%, #14101f 100%);
    box-shadow: 0 0 0 20px rgba(152, 16, 250, 0.07), 0 0 0 45px rgba(152, 16, 250, 0.035);
}

/* ---------- Requirements Compare ---------- */
.proof-req-compare {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
    max-width: 960px;
    margin: 50px auto 0;
}
.proof-req-col {
    border-radius: 20px;
    background: var(--color-white, #fff);
    border: 1px solid rgba(25, 135, 84, 0.1);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s var(--wc-ease, 0.3s cubic-bezier(.4,0,.2,1)), box-shadow 0.3s;
}
.proof-req-col:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
}
.proof-req-col--no { border-color: rgba(220, 53, 69, 0.1); }

.proof-req-col__head {
    padding: 28px 28px 22px;
    background: linear-gradient(135deg, #e6f9ef 0%, #d1f0de 100%);
    border-bottom: 2px solid rgba(25, 135, 84, 0.1);
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    overflow: hidden;
}
.proof-req-col__head::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(25, 135, 84, 0.06);
}
.proof-req-col__head--no {
    background: linear-gradient(135deg, #fde8e8 0%, #fdd 100%);
    border-bottom-color: rgba(220, 53, 69, 0.1);
}
.proof-req-col__head--no::before { background: rgba(220, 53, 69, 0.06); }

.proof-req-col__icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: 14px;
    background: rgba(25, 135, 84, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #15803d;
    position: relative;
    z-index: 1;
}
.proof-req-col__icon--no { background: rgba(220, 53, 69, 0.12); color: var(--color-danger); }

.proof-req-col__count {
    position: absolute;
    top: 14px;
    right: 18px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(25, 135, 84, 0.1);
    color: #15803d;
}
.proof-req-col--no .proof-req-col__count { background: rgba(220, 53, 69, 0.1); color: var(--color-danger); }

.proof-req-col__body {
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.proof-req-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(25, 135, 84, 0.03);
    border: 1px solid transparent;
    transition: all 0.25s;
}
.proof-req-row:hover { background: rgba(25, 135, 84, 0.06); border-color: rgba(25, 135, 84, 0.08); }
.proof-req-row--no { background: rgba(220, 53, 69, 0.03); }
.proof-req-row--no:hover { background: rgba(220, 53, 69, 0.06); border-color: rgba(220, 53, 69, 0.08); }

.proof-req-row__ic {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 10px;
    background: rgba(25, 135, 84, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
    margin-top: 2px;
}
.proof-req-row__ic--no { background: rgba(220, 53, 69, 0.1); color: var(--color-danger); }

.proof-req-row__text { flex: 1; }
.proof-req-row__text .fw-700 { letter-spacing: -0.01em; }

.proof-req-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
}
.proof-req-vs span {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--wc-grad, linear-gradient(135deg, #9810fa 0%, #8307de 55%, #7700ce 100%));
    color: #fff;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(134, 14, 255, 0.3);
    position: relative;
    z-index: 2;
}

[data-bs-theme="dark"] .proof-req-col { background: rgba(255, 255, 255, 0.04); border-color: rgba(25, 135, 84, 0.15); }
[data-bs-theme="dark"] .proof-req-col--no { border-color: rgba(220, 53, 69, 0.15); }
[data-bs-theme="dark"] .proof-req-col__head { background: linear-gradient(135deg, rgba(25, 135, 84, 0.1) 0%, rgba(25, 135, 84, 0.05) 100%); }
[data-bs-theme="dark"] .proof-req-col__head--no { background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(220, 53, 69, 0.05) 100%); }
[data-bs-theme="dark"] .proof-req-row { background: rgba(25, 135, 84, 0.05); }
[data-bs-theme="dark"] .proof-req-row--no { background: rgba(220, 53, 69, 0.05); }

@media (max-width: 1024px) {
    .proof-hub__center{width: 100px; height: 100px;}
     .proof-hub__center img { width: 90px; height: 90px; }
}
@media (max-width: 768px) {
    .proof-req-compare { grid-template-columns: 1fr !important; }
 .proof-req-vs {
    padding: 0;
    position: absolute;
    z-index: 9;
    left: 0;
    top: 53%;
    right: 0;
    margin: 0 auto;
}
   
    .proof-req-col__head { padding: 22px; }
    .proof-req-col__body { padding: 18px; }
    .otto-steps {
    grid-template-columns: 1fr !important;
}
.otto-step:nth-child(even) { margin-top: 0px; }
}
/* Light Green Gradient - Dark Mode */
[data-bs-theme="dark"] .bg-lightgreen-gradient {
    background: linear-gradient(
        135deg,
        #1B2220 5%,
        rgba(88, 190, 104, 0.18) 100%
    );
    color: #8FE3A1;
    border: 1px solid rgba(88, 190, 104, 0.15);
}

[data-bs-theme="dark"] .bg-purpel-gradient {
    background: linear-gradient(
        135deg,
        #1B1922 5%,
        rgba(131, 7, 222, 0.18) 100%
    );
    color: #C892FF;
    border: 1px solid rgba(131, 7, 222, 0.15);
}