:root{
    --deep-space:#050A18;
    --quantum-blue:#245BFF;
    --arc-cyan:#00c8ff;
    --silver-mist:#DCE6F7;
    --ion-slate:#151F35;
    --grid-line:rgba(0, 200, 255, .22);
    --header-h:10vh;
}

*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html{
    scroll-behavior: smooth;
    zoom:1;
}
body{
    background-color:var(--deep-space);
    color: #fff;
    font-family: 'Manrope',system-ui, sans-serif;
    line-height: 1.5;
    cursor: default;
}
body{
    position: relative;
}
body::before{
    content: "";
    position: absolute;
    top: var(--header-h);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-h));
    background-image: 
    linear-gradient( var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse 80% 90% at 50% 35%, #000 25%, transparent 78%);
    mask-image: radial-gradient(ellipse 80% 90% at 50% 35%,#000 25%, transparent 78%);
    pointer-events: none;
}
body::after{
    content: "";
    position: absolute;
    top: calc(var(--header-h) + 288px - 4px);
    left: 0;
    width: 90px;
    height: 8px;
    background:
        radial-gradient(circle at calc(100% - 4px) 50%, #fff 2px, var(--arc-cyan) 3px, transparent 5px),
        linear-gradient(90deg, transparent, var(--arc-cyan)) center / 100% 2px no-repeat;
    filter: drop-shadow(0 0 6px var(--arc-cyan));
    opacity: 0;
    pointer-events: none;
}
@media (prefers-reduced-motion: no-preference){
    body::after{
        animation: dot 8s cubic-bezier(.5, 0, .3, 1) infinite;
    }
    @keyframes dot{
        0%   { transform: translateX(-90px); opacity: 0; }
        5%   { opacity: 1; }
        35%  { transform: translateX(calc(100vw - 90px)); opacity: 1; }
        40%  { transform: translateX(calc(100vw - 90px)); opacity: 0; }
        100% { transform: translateX(calc(100vw - 90px)); opacity: 0; }
    }
}
main{
    position: relative;
    z-index:1;
}
.top{
    width: 100%;
    height: var(--header-h);
    border-bottom: 1px solid #16beed49;
    display: flex;
   justify-content: center;
   align-items: center;
}

.logo-bx{
    width: 20% ;  
    height: 80%; 
    margin: 0px 8px;
    padding: 8px;
    background: transparent;
    border-radius: 20px;

}
.logo-img{
  height: 100%;
}
.logo-img img{
    height: 100%;
    max-width: 100%;
    width: auto;
    object-fit: contain;
    display: block;
}
.right-side{
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
    width: 70%;
    height: 100%;
}
.nav-btn{
    align-items: center;
    justify-content: space-between;
    display: flex;
    gap: 12px;
    width: auto;
    height: 100%;
    margin-right: 20px;
}
.nav-itm{
     background: transparent;
    text-decoration: none;
    border:none;
    border-radius: 20px;
    padding: 18px 25px;
    font-size: 1rem;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.715);
}
.nav-itm:hover{
    background: #00c8ff15;
    padding: 18px 25px;
    border-radius: 28px;
}
.reach-us{
   padding: 15px 45px;
    border-radius: 12px;
    background-color: var(--arc-cyan);
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #050A18;
    font-weight: 600;
}
.hero{
    width: 80%;
    height: auto;
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    justify-self: center;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 20px;
    padding: 60px 40px;
    margin-top: 50px;
    border-radius: 30px;
}

.eyebrow-label{
    color: #e9f1ff;
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 0px;
}
.legend{
 width: auto;
 height: 30%;
 background-color: transparent;
 align-items: center;
 font-size: clamp(2.4rem, 5.5vw, 5rem);
 line-height: 1.1;
 font-weight: 700;
 margin-top: 0px;
}
.legend span{
    color: #00c8ff;
       -webkit-text-stroke: 2px  #5edcff ;
       paint-order: stroke fill;

}
.subtext{
    color: var(--silver-mist);
    font-size: 1.5rem;
    line-break: 1.6;
    text-wrap: balance;
    max-width: 80ch;
}
.main-cta{
    padding: 15px 45px;
    background-color: var(--arc-cyan);
    border-radius: 15px;
    text-decoration: none;
    color: var(--deep-space);
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 50px;
}
.cta-sect{
    width: 60%;
    height:30vh;
    display: flex;
    align-items: center;
    justify-self: center;
}
.how{
    flex: 1;
    padding: 40px;
    border-radius: 24px;
    background-color: var(--ion-slate);
    border: 1px solid #0ac0f283;
}
.how-track{
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    position: relative;
}

/* base line */
.how-track::before{
    content: "";
    position: absolute;
    top: 7px; left: 0; right: 0;
    height: 2px;
    background: var(--grid-line);
}

/* travelling pulse */
.how-track::after{
    content: "";
    position: absolute;
    top: 5px; left: -90px;
    width: 90px; height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, transparent, var(--arc-cyan));
    filter: drop-shadow(0 0 3px var(--arc-cyan));
    opacity: 0;
}

/* nodes */
.how-step::before{
    content: "";
    display: block;
    width: 16px; height: 16px;
    margin-bottom: 22px;
    border-radius: 50%;
    background: var(--ion-slate);
    border: 2px solid var(--arc-cyan);
    position: relative;
    z-index: 1;
}
.how-num{
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .85rem;
    color: var(--arc-cyan);
    letter-spacing: .1em;
}
.how-step h3{ font-size: 1.4rem; margin: 4px 0 8px; }
.how-step p{ color: rgba(220, 230, 247, .72); font-size: 1rem; }

/* animation */
@media (prefers-reduced-motion: no-preference){
    .how-track::after{ animation: sweep 6s infinite; }
    .how-step:nth-child(1)::before{ animation: node1 6s infinite; }
    .how-step:nth-child(2)::before{ animation: node2 6s infinite; }
    .how-step:nth-child(3)::before{ animation: node3 6s infinite; }
}
@media (prefers-reduced-motion: reduce){
    .how-step::before{ background: var(--arc-cyan); }
}

@keyframes sweep{
    0%   { left: -90px; width: 90px; opacity: 0; }
    4%   { left: -90px; width: 90px; opacity: 1; animation-timing-function: linear; }
    54%  { left: calc(66.7% - 63px); width: 90px; opacity: 1;
           animation-timing-function: cubic-bezier(.6, 0, 1, .5); }
    74%  { left: calc(100% + 360px); width: 280px; opacity: 1; }
    76%, 100% { left: calc(100% + 360px); width: 280px; opacity: 0; }
}

/* each node fills the instant the streak reaches it */
@keyframes node1{
    0%, 4%      { background: var(--ion-slate); box-shadow: none; }
    4.6%, 80%   { background: var(--arc-cyan); box-shadow: 0 0 5px rgba(0, 200, 255, .5); }
    86%, 100%   { background: var(--ion-slate); box-shadow: none; }
}
@keyframes node2{
    0%, 28.6%   { background: var(--ion-slate); box-shadow: none; }
    29.2%, 80%  { background: var(--arc-cyan); box-shadow: 0 0 5px rgba(0, 200, 255, .5); }
    86%, 100%   { background: var(--ion-slate); box-shadow: none; }
}
@keyframes node3{
    0%, 53.2%   { background: var(--ion-slate); box-shadow: none; transform: scale(1); }
    53.8%       { background: var(--arc-cyan); box-shadow: 0 0 22px rgba(0, 200, 255, .5); transform: scale(1.7); }
    58%, 80%    { background: var(--arc-cyan); box-shadow: 0 0 5px rgba(0, 200, 255, .5); transform: scale(1); }
    86%, 100%   { background: var(--ion-slate); box-shadow: none; transform: scale(1); }
}
/* tablets and phones: stacked, with a vertical line */
     


@media (max-width: 1000px){
    .cta-sect{ width: calc(100% - 40px); }
    .how-track{ grid-template-columns: 1fr; }
    .how-track::before, .how-track::after{ display: none; }
}
.about{
    width: 80%;
    min-height: 50dvh;
    margin:24px auto 0;
    padding: 64px 56px;
    color:var(--deep-space);
    background-color: transparent;
    justify-self: center;
    border-radius: 30px;
    display:grid;
    grid-template-columns: 1fr 1.4fr;
    gap:48px;
    align-items: stretch;
}
.about-title{
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    line-height: 1.1;
    font-weight: 800;
    color: var(--arc-cyan);
    -webkit-text-stroke: 1px  #5edcff ;
    }
.about-title::after{
    content: "";
    display:block;
    background-color:var(--arc-cyan);
    width: 100px;
    height:8px;
    margin-top:20px;
    border-radius:4px;
}
.about-txt{
  max-width: 68ch;
  position:relative;
  z-index:1;
}
.about-txt p{
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    line-height:1.7;
    color:rgba(220, 230, 247, .78);
    text-wrap: pretty;
}
.about-txt p span{
    font-weight: 500;
    color: #ffffffb5;
    background: linear-gradient(transparent 70%, rgba(0,200, 255,.28)70%);
    -webkit-box-decoration-break:clone;
    box-decoration-break: clone;
}
.about-txt p + p{
    margin-top:1.1em;
}
.about-txt .pivot{
    font-size: 1.5rem;
    font-weight:800;
    margin-top: 2.2rem;
    margin-bottom: 1.6rem;
    color:#fff;
}
.about-txt .pivot-2{
    color:#ffffffd6;
    font-weight: 400;
}
.about-txt .sign-off{
    font-weight:800;
    color: #fff;
}
.about-side{
    display:flex;
    flex-direction: column;
}
.chart{
    position: relative;
    flex:1;
    min-height: 320px;
    margin-top: 40px;
}
.chart::before{
    content:"";
    position:absolute;
    top:0;
    bottom:0;
    left:0;
    right:-120px;
    background-image: 
         linear-gradient( var(--grid-line) 1px, transparent 1px),
         linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
         background-size: 28px 28px;
    -webkit-mask-image: radial-gradient(ellipse 110% 85% at 0% 50%, #000 35%, transparent 100%);
    mask-image: radial-gradient(ellipse 110% 85% at 0% 50%, #000 35%, transparent 100%);
 }
.chart svg{
    position: absolute;
    inset:0;
    width: 100%;
    height: 100%;
    display: block;
    filter: drop-shadow(0 0 6px var(--arc-cyan));
}
.chart-line{ stroke-dasharray: 1; stroke-dashoffset: 0; }
.chart-dot{ stroke-dasharray: 0.0001 2; stroke-dashoffset: -1; }

@media (prefers-reduced-motion: no-preference){
    .chart-line, .chart-dot{
        animation-duration: 7s;
        animation-iteration-count: infinite;
        animation-timing-function: cubic-bezier(.45, 0, .25, 1);
    }
    .chart-line{ animation-name: draw; }
    .chart-dot{ animation-name: travel; }
}
@keyframes draw{
    0%   { stroke-dashoffset: 1; opacity: 0; }
    4%   { stroke-dashoffset: 1; opacity: 1; }
    50%  { stroke-dashoffset: 0; opacity: 1; }
    85%  { stroke-dashoffset: 0; opacity: 1; }
    100% { stroke-dashoffset: 0; opacity: 0; }
}
@keyframes travel{
    0%   { stroke-dashoffset: 0; opacity: 0; }
    4%   { stroke-dashoffset: 0; opacity: 1; }
    50%  { stroke-dashoffset: -1; opacity: 1; }
    85%  { stroke-dashoffset: -1; opacity: 1; }
    100% { stroke-dashoffset: -1; opacity: 0; }
}
body{ overflow-x: hidden; }
.menu-btn{ display: none; }


/* ===== Explore / info block ===== */
.explore{
    width: 80%;
    margin: 24px auto 0;
    padding-bottom: 80px;
}
.info-block{
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);  /* minmax(0,…) lets the text column shrink */
    gap: 28px;
    align-items: stretch;
    height: auto;                                 /* never a fixed height */
    padding: 24px 0 28px;
    border-bottom: 1px solid #0ac0f283;           /* only the bottom line, no other border */
}
.block-img{
    min-height: 210px;
    border-radius: 16px;
    background: var(--ion-slate);
    border: 1px solid var(--grid-line);
}
.right-edge{
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 14px;
}
.eyebrow{
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .8rem;
    letter-spacing: .1em;
    color: var(--arc-cyan);
    border: 1px solid rgba(0, 200, 255, .4);
    border-radius: 8px;
    padding: 4px 12px;
}
.block-header{
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.2;
    font-weight: 700;
    color: #fff;
    overflow-wrap: break-word;
}
.main-txt{
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.7;
    color: rgba(220, 230, 247, .82);
    max-width: 60ch;
}
.service-chips{
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}
.service-chips li{
    font-size: .85rem;
    padding: 6px 14px;
    border-radius: 999px;
    color: var(--silver-mist);
    background: rgba(0, 200, 255, .08);
    border: 1px solid rgba(0, 200, 255, .22);
    transition: background .2s ease, border-color .2s ease;
    cursor: default;
}
.service-chips li:hover{
    background: rgba(0, 200, 255, .16);
    border-color: rgba(0, 200, 255, .5);
}

@media (max-width: 1000px){
    .explore{ width: calc(100% - 40px); }
}
@media (max-width: 600px){
    .explore{ width: calc(100% - 32px); }
    .info-block{ grid-template-columns: 1fr; }
    .block-img{ min-height: 160px; }
}

/* tablets and phones */
@media (max-width: 1000px){
    :root{ --header-h: 72px; }

    .top{
        justify-content: space-between;
        padding: 0 20px;
        position: relative;
        z-index: 10;
    }
    .logo-bx{ width: 160px; height: 100%; margin: 0; padding: 16px 0; }
    .menu-btn{
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: var(--ion-slate);
        border: 1px solid #16beed49;
        border-radius: 14px;
        color: #fff;
        font-size: 1.4rem;
        cursor: pointer;
    }
    .right-side{
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 12px;
        padding: 20px;
        background: var(--deep-space);
        border-bottom: 1px solid #16beed49;
    }
    .right-side.open{ display: flex; }
    .nav-btn{
        flex-direction: column;
        align-items: stretch;
        height: auto;
        gap: 4px;
        margin-right: 0;
    }
    .nav-itm{ padding: 16px 20px; }
    .reach-us{ text-align: center; }

    .hero, .cta-sect, .about{ width: calc(100% - 40px); margin-inline: auto; }
    .hero{ height: auto; margin-top: 24px; padding: 40px 0; gap: 16px; }
    .eyebrow-label{ font-size: 1.05rem; }
    .legend{
        width: 100%;
        height: auto;
        font-size: clamp(2.4rem, 8vw, 4rem);
        line-height: 1.1;
    }
    .subtext{ font-size: clamp(1.05rem, 2.6vw, 1.3rem); }
    .cta-sect{ height: auto; }

    .about{ grid-template-columns: 1fr; gap: 32px; padding: 40px 0; }
    .about-txt{ max-width: none; }
    .about-txt .pivot{ font-size: 1.3rem; margin-top: 1.8rem; margin-bottom: 1.2rem; }
    .chart{ min-height: 300px; margin-top: 28px; }
    .chart::before{
        right: 0;
        -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, #000 35%, transparent 100%);
        mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, #000 35%, transparent 100%);
    }
}

/* phones */
@media (max-width: 600px){
    body::before{ background-size: 32px 32px; }
    body::after{ top: calc(var(--header-h) + 192px - 4px); }
    .logo-bx{ width: 140px; }
    .hero, .cta-sect, .about{ width: calc(100% - 32px); }
    .hero{ padding: 32px 0; }
    .legend{ font-size: clamp(2.2rem, 11vw, 3rem); }
    .legend span{ -webkit-text-stroke-width: 1px; }
    .main-btn{ width: 100%; text-align: center; }
    .about{ padding: 32px 0; }
    .chart{ min-height: 260px; }
}
.main-cta{
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
}
.main-cta .arrow{
    flex: none;
    transition: transform .2s ease;
}
.main-cta:hover .arrow{
    transform: translate(3px, -3px);
}
/* tablets and phones: vertical pipeline */
@media (max-width: 1000px){
    .cta-sect{ width: calc(100% - 40px); height: auto; }
    .how{ padding: 32px 24px; }

    .how-track{
        grid-template-columns: 1fr;
        grid-auto-rows: 1fr;        /* equal rows: keeps node positions predictable */
        gap: 32px;
    }
    .how-track::before{
        top: 0; bottom: 0;
        left: 7px; right: auto;
        width: 2px; height: auto;
    }
    .how-track::after{
        display: block;
        top: -90px; left: 5px;
        width: 6px; height: 90px;
        background: linear-gradient(180deg, transparent, var(--arc-cyan));
        opacity: 0;
        pointer-events: none;
    }
    .how-step{ position: relative; padding-left: 40px; }
    .how-step::before{
        position: absolute;
        left: 0; top: 2px;
        margin: 0;
    }
}

@media (max-width: 1000px) and (prefers-reduced-motion: no-preference){
    .how-track::after{ animation: sweep-v 6s infinite !important; }
    .how-step:nth-child(1)::before{ animation: node1v 6s infinite !important; }
    .how-step:nth-child(2)::before{ animation: node2v 6s infinite !important; }
    .how-step:nth-child(3)::before{ animation: node3v 6s infinite !important; }
}
@media (max-width: 1000px) and (prefers-reduced-motion: reduce){
    .how-track::after{ display: none; }
}

/* streak head touches node 1 at 4%, node 2 at 29%, node 3 at 54% */
@keyframes sweep-v{
    0%   { top: -90px; height: 90px; opacity: 0; }
    4%   { top: -90px; height: 90px; opacity: 1; animation-timing-function: linear; }
    29%  { top: calc(33.33% - 77.33px); height: 90px; opacity: 1; animation-timing-function: linear; }
    54%  { top: calc(66.67% - 66.67px); height: 90px; opacity: 1;
           animation-timing-function: cubic-bezier(.6, 0, 1, .5); }
    74%  { top: calc(100% + 220px); height: 200px; opacity: 1; }
    76%, 100% { top: calc(100% + 220px); height: 200px; opacity: 0; }
}

/* each node starts filling at the exact moment of contact */
@keyframes node1v{
    0%, 4%     { background: var(--ion-slate); box-shadow: none; }
    4.8%, 80%  { background: var(--arc-cyan); box-shadow: 0 0 14px var(--arc-cyan); }
    86%, 100%  { background: var(--ion-slate); box-shadow: none; }
}
@keyframes node2v{
    0%, 29%    { background: var(--ion-slate); box-shadow: none; }
    29.8%, 80% { background: var(--arc-cyan); box-shadow: 0 0 14px var(--arc-cyan); }
    86%, 100%  { background: var(--ion-slate); box-shadow: none; }
}
@keyframes node3v{
    0%, 54%    { background: var(--ion-slate); box-shadow: none; transform: scale(1); }
    54.6%      { background: var(--arc-cyan); box-shadow: 0 0 22px var(--arc-cyan); transform: scale(1.7); }
    59%, 80%   { background: var(--arc-cyan); box-shadow: 0 0 14px var(--arc-cyan); transform: scale(1); }
    86%, 100%  { background: var(--ion-slate); box-shadow: none; transform: scale(1); }
}
/* ===== Closing band ===== */
.closing{
    position: relative;
    padding: 110px calc(10% + 40px) 120px;
}
.closing::before{
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 25%, #000 25%, transparent 80%);
    mask-image: radial-gradient(ellipse 90% 90% at 50% 25%, #000 25%, transparent 80%);
    pointer-events: none;
}
.closing > *{ position: relative; }
.closing-title{
    font-size: clamp(2.2rem, 5.5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
}
.closing-title span{
    color: var(--arc-cyan);
    -webkit-text-stroke: 1px #5edcff;
    paint-order: stroke fill;
}
.closing-txt{
    margin-top: 28px;
    max-width: 56ch;
    font-size: clamp(1.05rem, 1.8vw, 1.4rem);
    line-height: 1.7;
    color: var(--silver-mist);
}
.closing .main-cta{ margin-top: 40px; }

/* ===== Footer ===== */
.site-footer{
    position: relative;
    padding: 72px calc(10% + 40px) 32px;
}
.site-footer::before{
    content: "";
    position: absolute;
    top: 0; left: 2.5%; right: 2.5%;
    height: 1px;
    background: rgba(0, 200, 255, .2);
}
.footer-grid{
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
}
.footer-brand{
    display: flex;
    align-items: center;
    gap: 14px;
}
.footer-brand img{
    height: 44px;
    width: auto;
    display: block;
}
.footer-brand span{
    font-size: 2rem;
    font-weight: 700;
    color: var(--silver-mist);
}
.footer-tag{
    margin-top: 14px;
    color: rgba(220, 230, 247, .6);
}
.footer-col h4{
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .28em;
    text-transform: uppercase;
    color: var(--arc-cyan);
    margin-bottom: 24px;
}
.footer-col ul{
    list-style: none;
    display: grid;
    gap: 16px;
}
.footer-col li{ color: rgba(255, 255, 255, .88); }
.footer-col a{
    color: rgba(255, 255, 255, .88);
    text-decoration: none;
    transition: color .2s ease;
}
.footer-col a:hover{ color: var(--arc-cyan); }
.footer-bottom{
    margin-top: 64px;
    padding-top: 28px;
    border-top: 1px solid rgba(0, 200, 255, .14);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: .95rem;
    color: rgba(220, 230, 247, .5);
}
.footer-bottom a{
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
}
.footer-bottom a:hover{ color: var(--arc-cyan); }

@media (max-width: 1000px){
    .closing{ padding: 80px 20px 90px; }
    .site-footer{ padding: 56px 20px 28px; }
    .footer-grid{ grid-template-columns: 1fr 1fr; }
    .footer-about{ grid-column: 1 / -1; }
}
@media (max-width: 600px){
    .closing{ padding: 64px 16px 72px; }
    .closing .main-cta{ width: 100%; justify-content: center; }
    .site-footer{ padding: 48px 16px 24px; }
    .footer-grid{ grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom{ flex-direction: column; }
}
/* ===== Mobile polish ===== */

/* tablets and phones */
@media (max-width: 1000px){
    /* bring back the vertical pipeline line */
    .how-track::before{ display: block; }

    /* hero button: the old rules pointed at .main-btn */
    .main-cta{ margin-top: 16px; }

    /* consistent spacing between sections */
    .cta-sect{ margin-top: 8px; }
    .about{ min-height: 0; margin-top: 32px; }
    .explore{ margin-top: 8px; padding-bottom: 56px; }

    /* slightly more solid menu panel */
    .right-side{
        background: rgba(5, 10, 24, .97);
        backdrop-filter: blur(12px);
    }
}

/* phones */
@media (max-width: 600px){
    .main-cta{ width: 100%; justify-content: center; }

    /* about: shorter chart so the text comes sooner */
    .about{ padding: 24px 0; gap: 24px; }
    .chart{ min-height: 200px; margin-top: 20px; }

    /* info blocks: image scales instead of a fixed height */
    .info-block{ gap: 20px; padding: 20px 0 24px; }
    .block-img{ min-height: 0; aspect-ratio: 16 / 10; }
    .block-header{ font-size: 1.5rem; }
    .service-chips li{ font-size: .8rem; padding: 5px 12px; }

    /* closing + footer */
    .closing-title{ text-wrap: balance; }
    .footer-grid{ grid-template-columns: 1fr 1fr; gap: 28px 20px; }
    .footer-about{ grid-column: 1 / -1; }
    .footer-col{ min-width: 0; }
    .footer-col li,
    .footer-col a{ overflow-wrap: anywhere; }
    .footer-bottom{ margin-top: 40px; gap: 8px; }
}
/* ===== Social icons ===== */
.socials{
    display: flex;
    gap: 12px;
}
.footer-bottom .socials a{
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: rgba(220, 230, 247, .7);
    border: 1px solid rgba(0, 200, 255, .22);
    transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
}
.footer-bottom .socials a:hover{
    color: var(--arc-cyan);
    background: rgba(0, 200, 255, .1);
    border-color: rgba(0, 200, 255, .55);
    transform: translateY(-2px);
}
.socials svg{
    width: 18px;
    height: 18px;
    display: block;
}