@import url('/public/css/xplug-responsive.css');

/* Network Coordination Module - System Page Only - a16z Infrastructure Standard */
.xplug-system-coordination {
    max-width: 960px;
    margin: 0 auto;
    padding: 80px 24px 0;
    position: relative;
}

/* Header Section (layout only, typography handled by SystemHero) */
.xplug-system-coordination__header {
    margin-bottom: 40px;
}

/* System Diagram */
.xplug-system-coordination__diagram {
    position: relative;
    margin: 40px 0;
    padding: 40px 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.xplug-diagram__node {
    position: absolute;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
}

.xplug-diagram__node::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 0;
}

.xplug-diagram__node--left[data-node="vehicles"] {
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.08);
}

.xplug-diagram__node--left[data-node="vehicles"]::before {
    background: radial-gradient(circle at center, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
}

.xplug-diagram__node--mid[data-node="chargers"] {
    border-color: rgba(47, 108, 211, 0.3);
    background: rgba(47, 108, 211, 0.08);
}

.xplug-diagram__node--mid[data-node="chargers"]::before {
    background: radial-gradient(circle at center, rgba(47, 108, 211, 0.2) 0%, transparent 70%);
}

.xplug-diagram__node--right[data-node="networks"] {
    border-color: rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.08);
}

.xplug-diagram__node--right[data-node="networks"]::before {
    background: radial-gradient(circle at center, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
}

.xplug-diagram__node > * {
    position: relative;
    z-index: 1;
}

.xplug-diagram__node--left {
    top: 20px;
    left: 8%;
    transform: translateX(-50%);
    animation: nodePulse 3s ease-in-out infinite;
    animation-delay: 0s;
}

.xplug-diagram__node--mid {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    animation: nodePulse 3s ease-in-out infinite;
    animation-delay: 1s;
}

.xplug-diagram__node--right {
    top: 20px;
    right: 8%;
    transform: translateX(50%);
    animation: nodePulse 3s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes nodePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
    50% {
        box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
    }
}

.xplug-diagram__nodeTitle {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.xplug-diagram__nodeMeta {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    letter-spacing: 0.02em;
}

.xplug-diagram__core {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    padding: 20px 32px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.xplug-diagram__core::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: conic-gradient(
        from 0deg,
        rgba(16, 185, 129, 0.1) 0deg,
        rgba(47, 108, 211, 0.1) 120deg,
        rgba(139, 92, 246, 0.1) 240deg,
        rgba(16, 185, 129, 0.1) 360deg
    );
    animation: coreRotate 8s linear infinite;
    opacity: 0.6;
    z-index: 0;
}

.xplug-diagram__core > * {
    position: relative;
    z-index: 1;
}

@keyframes coreRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.xplug-diagram__coreTitle {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.xplug-diagram__coreMeta {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.65);
    font-weight: 400;
    letter-spacing: 0.02em;
}

.xplug-diagram__lines {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.xplug-diagram__line {
    position: absolute;
    background: rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.xplug-diagram__line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    animation: lineFlow 2s ease-in-out infinite;
    opacity: 0;
}

.xplug-diagram__line--v::before {
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(16, 185, 129, 0.4) 50%,
        transparent 100%
    );
    animation-delay: 0s;
}

.xplug-diagram__line--c::before {
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(47, 108, 211, 0.4) 50%,
        transparent 100%
    );
    animation-delay: 0.67s;
}

.xplug-diagram__line--n::before {
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(139, 92, 246, 0.4) 50%,
        transparent 100%
    );
    animation-delay: 1.33s;
}

@keyframes lineFlow {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(100%);
        opacity: 0;
    }
}

.xplug-diagram__line--v {
    top: 80px;
    left: 8%;
    width: 2px;
    height: 120px;
    transform: translateX(-50%);
}

.xplug-diagram__line--c {
    top: 80px;
    left: 50%;
    width: 2px;
    height: 120px;
    transform: translateX(-50%);
}

.xplug-diagram__line--n {
    top: 80px;
    right: 8%;
    width: 2px;
    height: 120px;
    transform: translateX(50%);
}

/* Hover states for diagram */
.xplug-diagram__node.is-active,
.xplug-layerCard.is-active {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.xplug-diagram__node--left[data-node="vehicles"].is-active {
    border-color: rgba(16, 185, 129, 0.5);
    background: rgba(16, 185, 129, 0.15);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.2);
}

.xplug-diagram__node--mid[data-node="chargers"].is-active {
    border-color: rgba(47, 108, 211, 0.5);
    background: rgba(47, 108, 211, 0.15);
    box-shadow: 0 4px 16px rgba(47, 108, 211, 0.2);
}

.xplug-diagram__node--right[data-node="networks"].is-active {
    border-color: rgba(139, 92, 246, 0.5);
    background: rgba(139, 92, 246, 0.15);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.2);
}

.xplug-diagram__node--right.is-active {
    transform: translateX(50%) translateY(-2px);
}

.xplug-diagram__node.is-active::before {
    opacity: 1;
}

.xplug-diagram__core.is-active {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

.xplug-diagram__line.is-active {
    background: rgba(255, 255, 255, 0.2);
    opacity: 1;
}

.xplug-diagram__line.is-active::before {
    opacity: 1;
    animation-duration: 1s;
}

/* Coordination Loop Strip */
.xplug-system-coordination__loop {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 40px 0;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    flex-wrap: wrap;
}

.xplug-loop__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    transition: all 0.25s ease;
    min-width: 100px;
}

.xplug-loop__step:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
}

.xplug-loop__label {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: -0.01em;
}

.xplug-loop__desc {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
}

.xplug-loop__arrow {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.4);
    font-weight: 300;
    line-height: 1;
}

.xplug-loop__badge {
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    font-weight: 600;
}

/* Signal Cards */
.xplug-system-coordination__cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    margin: 40px 0;
    list-style: none;
    padding: 0;
}

.xplug-layerCard {
    padding: 24px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: relative;
    overflow: hidden;
}

.xplug-layerCard::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    opacity: 0;
}

.xplug-layerCard[data-layer="vehicles"]::before {
    background: linear-gradient(to bottom, rgba(16, 185, 129, 0.3), rgba(16, 185, 129, 0.1));
}

.xplug-layerCard[data-layer="chargers"]::before {
    background: linear-gradient(to bottom, rgba(47, 108, 211, 0.3), rgba(47, 108, 211, 0.1));
}

.xplug-layerCard[data-layer="networks"]::before {
    background: linear-gradient(to bottom, rgba(139, 92, 246, 0.3), rgba(139, 92, 246, 0.1));
}

.xplug-layerCard:hover,
.xplug-layerCard.is-active {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.16);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.xplug-layerCard:hover::before,
.xplug-layerCard.is-active::before {
    opacity: 1;
    width: 3px;
}

.xplug-layerCard[data-layer="vehicles"]:hover,
.xplug-layerCard[data-layer="vehicles"].is-active {
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.08);
}

.xplug-layerCard[data-layer="chargers"]:hover,
.xplug-layerCard[data-layer="chargers"].is-active {
    border-color: rgba(47, 108, 211, 0.3);
    background: rgba(47, 108, 211, 0.08);
}

.xplug-layerCard[data-layer="networks"]:hover,
.xplug-layerCard[data-layer="networks"].is-active {
    border-color: rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.08);
}

.xplug-layerCard__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.xplug-layerCard__title {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: -0.01em;
}

.xplug-layerCard__tag {
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
    padding: 3px 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}

.xplug-layerCard__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.xplug-chip {
    display: inline-block;
    padding: 6px 12px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-weight: 400;
    letter-spacing: -0.01em;
    transition: all 0.2s ease;
    position: relative;
}

.xplug-layerCard[data-layer="vehicles"] .xplug-chip {
    border-color: rgba(16, 185, 129, 0.2);
    background: rgba(16, 185, 129, 0.06);
}

.xplug-layerCard[data-layer="chargers"] .xplug-chip {
    border-color: rgba(47, 108, 211, 0.2);
    background: rgba(47, 108, 211, 0.06);
}

.xplug-layerCard[data-layer="networks"] .xplug-chip {
    border-color: rgba(139, 92, 246, 0.2);
    background: rgba(139, 92, 246, 0.06);
}

.xplug-layerCard[data-layer="vehicles"]:hover .xplug-chip,
.xplug-layerCard[data-layer="vehicles"].is-active .xplug-chip {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.35);
    color: rgba(255, 255, 255, 0.95);
}

.xplug-layerCard[data-layer="chargers"]:hover .xplug-chip,
.xplug-layerCard[data-layer="chargers"].is-active .xplug-chip {
    background: rgba(47, 108, 211, 0.12);
    border-color: rgba(47, 108, 211, 0.35);
    color: rgba(255, 255, 255, 0.95);
}

.xplug-layerCard[data-layer="networks"]:hover .xplug-chip,
.xplug-layerCard[data-layer="networks"].is-active .xplug-chip {
    background: rgba(139, 92, 246, 0.12);
    border-color: rgba(139, 92, 246, 0.35);
    color: rgba(255, 255, 255, 0.95);
}

.xplug-layerCard__note {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    line-height: 1.5;
    margin: 0;
    font-style: italic;
}

/* Closing Line */
.xplug-system-coordination__closing {
    margin-top: 48px;
    font-size: 13px;
    opacity: 0.65;
    color: rgba(255, 255, 255, 0.65);
    font-weight: 400;
    font-style: italic;
    text-align: left;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    letter-spacing: -0.01em;
    line-height: 1.6;
    max-width: 800px;
}

/* Loop Step Color Accents */
.xplug-loop__step:nth-child(1) {
    border-color: rgba(16, 185, 129, 0.2);
}

.xplug-loop__step:nth-child(3) {
    border-color: rgba(47, 108, 211, 0.2);
}

.xplug-loop__step:nth-child(5) {
    border-color: rgba(139, 92, 246, 0.2);
}

.xplug-loop__step:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .xplug-system-coordination__diagram,
    .xplug-diagram__node,
    .xplug-diagram__core,
    .xplug-diagram__line,
    .xplug-loop__step,
    .xplug-layerCard,
    .xplug-chip {
        transition: none;
        animation: none !important;
    }
    
    .xplug-layerCard:hover,
    .xplug-layerCard.is-active,
    .xplug-diagram__node.is-active {
        transform: none;
    }
    
    .xplug-diagram__line::before,
    .xplug-diagram__core::before {
        display: none;
    }
}

/* Responsive Design */
@media (max-width: 900px) {
    .xplug-system-coordination {
        padding: 80px 24px 0;
    }
    
    .xplug-system-coordination__title {
        font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    }
    
    .xplug-system-coordination__subtitle {
        font-size: 16px;
    }
    
    .xplug-system-coordination__diagram {
        min-height: 240px;
        padding: 32px 20px;
    }
    
    .xplug-diagram__node--left {
        left: 5%;
    }
    
    .xplug-diagram__node--right {
        right: 5%;
    }
    
    .xplug-diagram__line--v {
        left: 5%;
    }
    
    .xplug-diagram__line--n {
        right: 5%;
    }
    
    .xplug-system-coordination__cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

@media (max-width: 640px) {
    .xplug-system-coordination {
        padding: 64px 20px 0;
    }
    
    .xplug-system-coordination__title {
        font-size: clamp(1.5rem, 3vw, 2rem);
    }
    
    .xplug-system-coordination__subtitle {
        font-size: 15px;
    }
    
    .xplug-system-coordination__diagram {
        min-height: 200px;
        padding: 24px 16px;
    }
    
    .xplug-diagram__node {
        padding: 12px 16px;
    }
    
    .xplug-diagram__nodeTitle {
        font-size: 12px;
    }
    
    .xplug-diagram__nodeMeta {
        font-size: 10px;
    }
    
    .xplug-diagram__core {
        padding: 16px 24px;
    }
    
    .xplug-diagram__coreTitle {
        font-size: 13px;
    }
    
    .xplug-diagram__coreMeta {
        font-size: 10px;
    }
    
    .xplug-system-coordination__loop {
        padding: 16px 20px;
        gap: 12px;
    }
    
    .xplug-loop__step {
        padding: 10px 16px;
        min-width: 80px;
    }
    
    .xplug-loop__label {
        font-size: 12px;
    }
    
    .xplug-loop__desc {
        font-size: 10px;
    }
    
    .xplug-loop__arrow {
        font-size: 16px;
    }
    
    .xplug-layerCard {
        padding: 20px 18px;
    }
}

/* System Coordination Layer Section */
.xplug-system-coordination-layer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 32px 0;
    position: relative;
}

.xplug-system-coordination-layer__header {
    margin-bottom: 32px;
}

.xplug-system-coordination-layer__intro {
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: 0;
    margin-right: auto;
    text-align: left;
}

/* Roles Grid within System Coordination Layer */
.xplug-system-coordination-layer .xplug-community__roles-grid {
    max-width: 1200px;
    margin: 0 0 40px 0;
    padding: 0;
    gap: 28px;
    justify-items: start;
}

.xplug-system-coordination-layer__intro p {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.88);
    margin: 0;
    letter-spacing: -0.01em;
    font-weight: 400;
}

/* Three-Column Coordination Domains */
.xplug-system-coordination-layer__domains {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

/* Coordination Domain Card */
.xplug-coordination-domain {
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.xplug-coordination-domain:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.12);
}

.xplug-coordination-domain__header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.xplug-coordination-domain__number {
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
    color: rgba(255, 255, 255, 0.15);
    letter-spacing: -0.05em;
    min-width: 32px;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.xplug-coordination-domain__title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: rgba(255, 255, 255, 0.98);
    margin: 0 0 6px 0;
}

.xplug-coordination-domain__sub-label {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    font-weight: 500;
    margin: 0;
    line-height: 1.4;
}

.xplug-coordination-domain__body {
    font-size: 15px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    margin: 0 0 20px 0;
    letter-spacing: -0.01em;
    flex: 1;
}

.xplug-coordination-domain__signals {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.xplug-coordination-domain__signal-chip {
    display: inline-block;
    padding: 6px 12px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-weight: 400;
    letter-spacing: -0.01em;
    transition: all 0.2s ease;
}

.xplug-coordination-domain__signal-chip:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.07);
}

.xplug-coordination-domain__footnote {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    margin: 0;
    letter-spacing: -0.01em;
}

.xplug-system-coordination-layer__closing {
    margin-top: 40px;
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
    text-align: left;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    letter-spacing: -0.01em;
    max-width: 800px;
    margin-left: 0;
    margin-right: auto;
}

/* System Evolution Section */
.xplug-system-evolution {
    max-width: 960px;
    margin: 0 auto;
    padding: 80px 24px 80px;
    position: relative;
}

.xplug-system-evolution__header {
    margin-bottom: 40px;
}

.xplug-system-evolution__blocks {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

/* Evolution Block */
.xplug-evolution-block {
    display: flex;
    gap: 24px;
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
}

.xplug-evolution-block.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.xplug-evolution-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.xplug-evolution-block:hover::before {
    opacity: 1;
}

.xplug-evolution-block::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.03) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.xplug-evolution-block:hover::after {
    opacity: 1;
}

.xplug-evolution-block:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.15),
        0 2px 8px rgba(0, 0, 0, 0.1);
}

.xplug-evolution-block__marker {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    color: rgba(255, 255, 255, 0.12);
    letter-spacing: -0.05em;
    min-width: 48px;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
    transition: color 0.4s ease, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.xplug-evolution-block:hover .xplug-evolution-block__marker {
    color: rgba(255, 255, 255, 0.18);
    transform: scale(1.05);
}

.xplug-evolution-block__content {
    flex: 1;
}

.xplug-evolution-block__title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: rgba(255, 255, 255, 0.98);
    margin: 0 0 16px 0;
    transition: color 0.3s ease;
}

.xplug-evolution-block:hover .xplug-evolution-block__title {
    color: rgba(255, 255, 255, 1);
}

.xplug-evolution-block__content p {
    font-size: 15.5px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 12px 0;
    letter-spacing: -0.01em;
    font-weight: 400;
    transition: color 0.3s ease;
}

.xplug-evolution-block:hover .xplug-evolution-block__content p {
    color: rgba(255, 255, 255, 0.92);
}

.xplug-evolution-block__content p:last-child {
    margin-bottom: 0;
}

.xplug-system-evolution__closing {
    margin-top: 64px;
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-align: left;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    letter-spacing: -0.01em;
    max-width: 800px;
    margin-left: 0;
    margin-right: auto;
}

/* Reduced Motion Support for Evolution Blocks */
@media (prefers-reduced-motion: reduce) {
    .xplug-evolution-block {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    
    .xplug-evolution-block::before,
    .xplug-evolution-block::after {
        display: none;
    }
}

/* Responsive Design for New Sections */
@media (max-width: 900px) {
    .xplug-system-coordination-layer__domains {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .xplug-coordination-domain {
        padding: 28px 24px;
    }
    
    .xplug-system-evolution__blocks {
        gap: 24px;
    }
    
    .xplug-evolution-block {
        padding: 28px 24px;
        flex-direction: column;
        gap: 16px;
    }
    
    .xplug-evolution-block__marker {
        min-width: auto;
    }
}

@media (max-width: 640px) {
    .xplug-system-coordination-layer,
    .xplug-system-evolution {
        padding: 80px 20px 0;
    }
    
    .xplug-system-coordination-layer__intro p,
    .xplug-evolution-block__content p {
        font-size: 15px;
    }
    
    .xplug-coordination-domain__title,
    .xplug-evolution-block__title {
        font-size: 18px;
    }
}