/* styles.css */
/* ----------  Global ---------- */
body{margin:0;background:linear-gradient(135deg,#1e3c72,#295299);font-family:'Poppins',sans-serif}

/* ----------  Layout (top fold) ---------- */
.site-header{
    position:fixed;
    top:0; left:0; width:100%;
    padding:0.8rem 2rem;
    display:flex; align-items:center;
    z-index:100;
    pointer-events:none;           /* keeps hero buttons clickable‑through */
}
.logo{
    display:flex; align-items:center; gap:0.6rem;
    text-decoration:none;
    pointer-events:auto;
}
.logo img{height:40px;width:40px;object-fit:contain}
.project-name{font-size:1.3rem;font-weight:200;color:#fff;margin-top: 5px;}

/* add a modest drop‑shadow so it never disappears against bright frames */
.site-header img,.project-name{filter:drop-shadow(0 0 4px rgba(0,0,0,.4))}

.top-fold{height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;padding-top:4.5rem}
#starsCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.grid-container{display:flex;max-width:1400px;width:100%;height:80vh;align-items:stretch;justify-content:center}

/* ----------  Left column ---------- */
.left-column{display:flex;flex-direction:column;gap:1.5rem;padding:2rem;flex:1}
.left-column h1{font-size:3rem;font-weight:700;color:#fff;margin:25px 0 0;line-height:1.2}
.left-column p,li{font-size:1.2rem;color:rgba(255,255,255,.9);line-height:1.6}
.left-column ul li + li {
    margin-top: 0.8rem;
}
.left-column ul{list-style:none;padding:0;margin:0 0 10px}
.left-column button{background:linear-gradient(135deg,#2ecc71,#27ae60);color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;font-weight:600;border-radius:50px;cursor:pointer;transition:.3s;box-shadow:0 4px 15px rgba(46,204,113,.3);padding: 0.8rem 1.6rem;width: fit-content;margin-bottom: 2rem;}
.left-column button:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(46,204,113,.4)}

/* ----------  Right column / network ---------- */
.right-column{display:flex;align-items:flex-start;justify-content:center;flex:1}

/* ----------  Tabs ---------- */
.tabs-container{width:100%;max-width:700px;display:flex;flex-direction:column-reverse;gap:0;margin-top:-2rem}
.tabs-content{order:0}
.tabs-header{display:flex;gap:0;justify-content:center;background:transparent;border:1px solid rgba(255,255,255,.1);border-radius:8px;overflow:visible;padding:0;width:fit-content;margin:0 auto;position:relative;z-index:999}
.tab-button{padding:0.5rem 1rem;background:rgba(255,255,255,.08);color:rgba(255,255,255,.6);border:none;border-right:1px solid rgba(255,255,255,.1);font-size:0.9rem;font-weight:500;cursor:pointer;transition:all .3s;letter-spacing:0.3px;margin:0;flex:1;white-space:nowrap;position:relative}
.tab-button[title]{position:relative}
.tab-button[title]:hover::after{content:attr(title);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);padding:6px 12px;background:rgba(0,0,0,.9);color:#fff;border-radius:6px;font-size:0.75rem;white-space:nowrap;pointer-events:none;z-index:1001;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.tab-button[title]:hover::before{content:'';position:absolute;bottom:calc(100% + 2px);left:50%;transform:translateX(-50%);border:5px solid transparent;border-top-color:rgba(0,0,0,.9);pointer-events:none;z-index:1001}
.tab-button:last-child{border-right:none}
.tab-button:hover{background:rgba(255,255,255,.12);color:rgba(255,255,255,.8)}
.tab-button.active{color:#fff;background:rgba(46,204,113,.15)}
.tabs-content{position:relative}
.tab-content{display:none;opacity:0;transition:opacity .3s}
.tab-content.active{display:block;opacity:1}

.container{position:relative;width:100%;max-width:700px;aspect-ratio:1/1;min-width:300px}
#networkCanvas{position:absolute;inset:0;width:100%;height:100%}
#networkCanvas2{position:absolute;inset:0;width:100%;height:100%}
#nodes{position:absolute;inset:0}
#nodes2{position:absolute;inset:0}

/* ----------  Nodes ---------- */
.node{position:absolute;width:60px;height:60px;display:flex;align-items:center;justify-content:center;cursor:pointer;transform:translate(-50%,-50%);transition:transform .3s,box-shadow .3s}
.node:hover{transform:translate(-50%,-50%) scale(1.2);box-shadow:0 8px 25px rgba(0,0,0,.5)}
.node svg{width:50px;height:50px;fill:white;fill-opacity:.7;filter:drop-shadow(0 0 10px rgba(52,152,219,.5))}
.node.three-components svg{filter:drop-shadow(0 0 10px rgba(46,204,113,.5))}
.node.three-components::after{content:'\1F512';position:absolute;top:-10px;right:-10px;color:#f1c40f;font-size:14px;text-shadow:0 0 5px rgba(0,0,0,.5)}
.node-label{position:absolute;top:-15px;color:#fff;font-size:12px;font-weight:600;text-shadow:0 0 5px rgba(0,0,0,.5)}

/* ----------  Detail panel ---------- */
.detail-panel{position:absolute;z-index:10;max-width:280px;padding:20px;border-radius:12px;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);box-shadow:0 10px 30px rgba(0,0,0,.2),inset 0 0 10px rgba(0,0,0,.1);display:none;opacity:0;transform:translateY(20px) scale(.95);transition:opacity .3s,transform .3s;border:2px solid transparent;background-clip:padding-box;background-image:linear-gradient(rgba(255,255,255,.95),rgba(255,255,255,.95)),linear-gradient(45deg,#2ecc71,#3498db)}
.detail-panel.show{display:block;opacity:1;transform:translateY(0) scale(1)}
.detail-panel h3{margin:0 0 12px;color:#2c3e50;font-size:20px;font-weight:700;display:flex;align-items:center}
.detail-panel h3::before{content:'🖥️';margin-right:8px;font-size:20px}
.detail-panel ul{list-style:none;padding:0;margin:0}
.detail-panel li{padding:10px 0;font-size:14px;color:#34495e;display:flex;align-items:center;border-bottom:1px solid rgba(0,0,0,.1)}
.detail-panel li:last-child{border-bottom:none}
.detail-panel .status{margin-top:12px;font-size:12px;font-weight:600;padding:6px 12px;border-radius:12px;display:inline-block}
.detail-panel .status.active{background:#2ecc71}
.detail-panel .status.limited{background:#e67e22}

/* ----------  Scroll indicator ---------- */
.scroll-indicator{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:#fff;font-size:24px;opacity:.7;animation:bounce 2s infinite;cursor:pointer}
@keyframes bounce{0%,20%,50%,80%,100%{transform:translateX(-50%) translateY(0)}40%{transform:translateX(-50%) translateY(-10px)}60%{transform:translateX(-50%) translateY(-5px)}}

/* ----------  (Remaining sections unchanged – you can keep your original styles) ---------- */
.featured-videos {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #1a2a4a, #1e3c72);
    color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2ecc71;
}

.section-header p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 800px;
    margin: 0 auto;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.video-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.video-placeholder {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.video-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover .video-placeholder img {
    transform: scale(1.05);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(46, 204, 113, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.video-card:hover .play-button {
    opacity: 1;
}

.video-caption {
    padding: 1.5rem;
}

.video-caption h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: white;
}

.video-caption p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.5;
}

/* Third section styles */
.third-section {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #1a2a4a, #1e3c72);
    color: white;
}

.section-container {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 1400px;
    margin: 0 auto;
    gap: 1rem;
    align-items: start;
}

.section-container.with-card {
    grid-template-columns: 1fr 2fr;
}

.headline-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.section-container.with-card .headline-container {
    text-align: left;
    justify-content: flex-start;
}

.headline-container h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2ecc71;
    margin: 0;
}

.headline-container p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

#network-info-card-container {
    display: flex;
    justify-content: center;
    grid-column: 1 / -1;
}

.section-container.with-card #network-info-card-container {
    grid-column: 2;
    grid-row: 1;
}

.content-card {    
    width: 100%;
    max-width: 1400px;
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.content-card:hover {
    transform: translateY(-5px);                      
    box-shadow: 0 15px 35px rgba(0,0,0,.30);         
    background: rgba(255,255,255,.15);               
}

.content-card:hover .image-container img {            
    transform: scale(1.05);
}

.image-container {
    flex: 0 0 50%;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.text-content {    
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.text-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    color: white;
}

.text-content p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.text-content p:last-child {
    margin-bottom: 0;
}

/* New horizontal cards for third section */
.horizontal-cards {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    max-width: 1400px;
    margin: 2rem auto;
}

.horizontal-card {
    flex: 1;
    min-width: 250px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.horizontal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.card-image {
    width: 100%;
    aspect-ratio: 100 / 63;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    color: white;
}

.card-content p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

/* Roadmap section styles */
.roadmap-section {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #1a2a4a, #1e3c72);
    color: white;
}

.roadmap-container {
    max-width: 1400px;
    margin: 0 auto;
}

.roadmap-title {
    text-align: center;
    margin-bottom: 3rem;
}

.roadmap-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2ecc71;
}

.roadmap-title p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto;
}

.stepper {
    display: flex;
    justify-content: space-between;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.stepper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 1;
}

.step {
    position: relative;
    z-index: 2;
    text-align: center;
    flex: 1;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(46, 204, 113, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-weight: 600;
    color: white;
    transition: all 0.3s ease;
}

.step.completed .step-circle {
    background: #2ecc71;
    border-color: #2ecc71;
}

.step.work-in-progress .step-circle {
    background: #f1c40f;
    border-color: #f1c40f;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(241, 196, 15, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(241, 196, 15, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(241, 196, 15, 0);
    }
}

.step-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 5px;
}

.step-status {
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 12px;
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
}

.step.completed .step-status {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
}

.step.work-in-progress .step-status {
    background: rgba(241, 196, 15, 0.2);
    color: #f1c40f;
}



/* ----------  Mobile tweaks ---------- */
@media (max-width:768px){
    .grid-container{flex-direction:column;height:auto;padding:1rem}
    .left-column,.right-column{width:100%;padding:1rem}
    .left-column h1{font-size:2.5rem;text-align:center}
    .left-column p{font-size:1.1rem;text-align:center}
    .left-column button{align-self:center}
    .container{max-width:500px}
    .scroll-indicator{display:none}
    .section-container{grid-template-columns: 1fr}
    .section-container.with-card{grid-template-columns: 1fr}

    .tabs-header{gap:0;justify-content:center;border-radius:8px}
    .tab-button{font-size:0.8rem;padding:0.4rem 0.8rem;margin:0;border-right:1px solid rgba(255,255,255,.1)}
    .tab-button:last-child{border-right:none}

    .content-card{
        flex-direction: column;             
    }

    .content-card .image-container{
        width:100%;
        height:180px;                       
        flex:0 0 auto;
    }
    .content-card .image-container img{
        width:100%;
        height:100%;
        object-fit:cover;
    }

    .content-card .text-content{
        padding:1.5rem 2rem;
        text-align:left;                    
    }

    .headline-container {
        text-align: center;
    }

    .section-container.with-card .headline-container {
        text-align: center;
    }

    #network-info-card-container {
        grid-column: 1;
    }

    .section-container.with-card #network-info-card-container {
        grid-column: 1;
        grid-row: auto;
    }
}