:root {

    --yellow-0: #FFFEF5;
    --yellow-50: #FFFDDC;
    --yellow-100: #FFFCC4;
    --yellow-150: #FFFAAB;
    --yellow-200: #FFF993;
    --yellow-300: #FFF762;
    --yellow-400: #FFF431;
    --yellow-500: #FFF200;
    --yellow-600: #CEC400;
    --yellow-700: #9D9500;
    --yellow-800: #6C6700;
    --yellow-850: #535000;
    --yellow-900: #3B3800;
    --yellow-950: #222100;
    --yellow-1000: #0A0A00;
    --grey-0: #FFFFFF;
    --grey-50: #F2F2F2;
    --grey-100: #E6E6E6;
    --grey-150: #D9D9D9;
    --grey-200: #CCCCCC;
    --grey-300: #B3B3B3;
    --grey-400: #999999;
    --grey-500: #808080;
    --grey-600: #666666;
    --grey-700: #4D4D4D;
    --grey-800: #333333;
    --grey-850: #262626;
    --grey-900: #1A1A1A;
    --grey-950: #0D0D0D;
    --grey-1000: #000000;

    --spacing-0: 0px;
    --spacing-4: 4px;
    --spacing-8: 8px;
    --spacing-16: 16px;
    --spacing-24: 24px;
    --spacing-32: 32px;
    --spacing-40: 40px;
    --spacing-48: 48px;
    --spacing-56: 56px;
    --spacing-64: 64px;
    --spacing-80: 80px;
    --spacing-112: 112px;
    --spacing-128: 128px;
    --spacing-160: 160px;
    --spacing-192: 192px;
    --spacing-224: 224px;
    --section: 192px;

    --radius-4: 4px;
    --radius-8: 8px;
    --radius-16: 16px;
    --radius-24: 24px;
    --radius-circle: 999px;

    --primary-display2: 95px;
    --primary-display1: 76px;
    --primary-h1: 61px;
    --primary-h2: 49px;
    --primary-h3: 39px;
    --primary-h4: 31px;
    --primary-h5: 25px;
    --primary-h6: 20px;
    --primary-p: 16px;
    --primary-small: 13px;
    --primary-caption: 10px;
    --technical-h6: 20px;
    --technical-p: 16px;
    --technical-small: 13px;
    --technical-caption: 10px;

    --font-primary: 'Plus Jakarta Sans', sans-serif;
    --font-technical: 'IBM Plex Mono', monospace;
}

body {
    background-color: var(--grey-950);
}

.display2 {
    font-size: var(--primary-display2);
    font-family: var(--font-primary);
    line-height: 130%;
    letter-spacing: -1.9px;
    font-weight: 400;
}

.display1 {
    font-size: var(--primary-display1);
    font-family: var(--font-primary);
    line-height: 130%;
    letter-spacing: -1.52px;
    font-weight: 400;
}

h1 {
    font-size: var(--primary-h1);
    font-family: var(--font-primary);
    line-height: 130%;
    letter-spacing: -0.61px;
    font-weight: 400;
    color: var(--grey-0);
    margin-bottom: var(--spacing-24);
}

h2 {
    font-size: var(--primary-h2);
    font-family: var(--font-primary);
    line-height: 130%;
    letter-spacing: -0.49px;
    font-weight: 400;
    color: var(--grey-0);
    margin-bottom: var(--spacing-24);
}

h3 {
    font-size: var(--primary-h3);
    font-family: var(--font-primary);
    line-height: 120%;
    letter-spacing: -0.39px;
    font-weight: 400;
    color: var(--grey-0);
}

h4 {
    font-size: var(--primary-h4);
    font-family: var(--font-primary);
    line-height: 130%;

    font-weight: 400;
    color: var(--grey-0);
}

h5 {
    font-size: var(--primary-h5);
    font-family: var(--font-primary);
    line-height: 130%;
    font-weight: 400;
    color: var(--grey-0);
}

h6 {
    font-size: var(--primary-h6);
    font-family: var(--font-primary);
    line-height: 130%;
    font-weight: 400;
    color: var(--grey-0);
}

p {
    font-size: var(--primary-p);
    font-family: var(--font-primary);
    line-height: 140%;
    font-weight: 400;
    color: var(--grey-200);
}

a{
    color: inherit;
    text-decoration: none;
    transition: 0.3s all;
}
a:hover{
    color: var(--yellow-500);
}
ul{
     font-family: var(--font-primary);
    line-height: 140%;
    font-weight: 400;
    color: var(--grey-200);
}
li{
     font-family: var(--font-primary);
    line-height: 140%;
    font-weight: 400;
    color: var(--grey-200);
}

small {
    font-size: var(--primary-small);
    font-family: var(--font-primary);
    line-height: 120%;
    font-weight: 400;
}

.caption {
    font-size: var(--primary-caption);
    font-family: var(--font-primary);
    line-height: 120%;

    letter-spacing: 0.2px;
    font-weight: 400;
}

.technical-h6 {
    font-size: var(--technical-h6);
    font-family: var(--font-technical);
    line-height: 130%;

    letter-spacing: -0.2px;
    font-weight: 400;
}

.technical-p {
    font-size: var(--technical-p);
    font-family: var(--font-technical);
    line-height: 140%;

    letter-spacing: -0.16px;
    font-weight: 400;
}

.technical-small {
    font-size: var(--technical-small);
    font-family: var(--font-technical);
    line-height: 130%;

    letter-spacing: -0.13px;
    font-weight: 400;
}

.technical-caption {
    font-size: var(--technical-caption);
    font-family: var(--font-technical);
    line-height: 130%;

    letter-spacing: 0.2px;
    font-weight: 400;
}

.grid-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    display: flex;
    justify-content: center;
}

.grid-overlay-inner {
    width: min(1840px, calc(100% - 80px));
    height: 100%;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    position: relative;
}

.grid-overlay-inner span {
    position: relative;
}

.grid-overlay-inner span::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 1px;
    background: var(--grey-900);
}

.grid-overlay-inner span:nth-child(1) {
    grid-column: 1;
}

.grid-overlay-inner span:nth-child(2) {
    grid-column: 4;
}

.grid-overlay-inner span:nth-child(3) {
    grid-column: 7;
}

.grid-overlay-inner span:nth-child(4) {
    grid-column: 10;
}

.grid-overlay-inner span:nth-child(5) {
    grid-column: 13;
}

.section {
    margin-bottom: var(--section);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    border-radius: var(--radius-4);
    font-family: var(--font-technical);
    font-size: var(--technical-small);
    font-weight: 600;
    margin-top: var(--spacing-24);
}

.btn-text {
    position: relative;
    display: inline-block;
    overflow: hidden;
    height: 16.9px;
    line-height: 130%;
}

.btn img {
    transition: transform 0.1s ease;
}

.btn:hover img {
    transform: scaleX(-1);
}

.btn-text span {
    display: block;
}

.btn-yellow {
    background-color: var(--yellow-500);
    color: var(--grey-1000);
    transition: all 0.3s ease;
}

.btn-yellow:hover {
    background-color: var(--yellow-300);
    color: var(--grey-1000);
}

.btn-yellow:focus {
    background-color: var(--yellow-600);
    color: var(--grey-1000);
}

.btn-yellow:active {
    background-color: var(--yellow-600);
    color: var(--grey-1000);
}

.btn-white {
    background-color: var(--grey-0);
    color: var(--grey-1000);
    transition: all 0.3s ease;
}

.btn-white:hover {
    background-color: var(--grey-100);
    color: var(--grey-1000);
}

.btn-white:active {
    background-color: var(--grey-150);
    color: var(--grey-1000);
}

.btn-white:focus {
    background-color: var(--grey-150);
    color: var(--grey-1000);
}

.two-columns {
    column-count: 2;
    column-gap: 24px;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.navbar-nav .nav-item:first-child {
    margin-left: 0;
}

.navbar-nav .nav-item:last-child {
    margin-right: 0;
}

.navbar-main {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding: 24px 0;
    transition: all .35s ease;
    transform: translateX(-50%) scale(1);
}

.navbar-main .nav-link {
    color: var(--grey-0);
    font-weight: 500;
}

.navbar-main .nav-link:hover {
    color: var(--yellow-500);
}

.navbar-main.scrolled {
    top: 12px;
    width: calc(100% - 40%);
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 0;
    border-radius: var(--radius-8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--grey-900);
    transform: translateX(-50%) scale(.96);
}

.navbar-brand img {
    transition: transform .35s ease;
}

.navbar-main.scrolled .navbar-brand img {
    transform: scale(.55);
}

.language-switch {
    position: relative;
}

.lang-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    color: white;
    font-weight: 500;
    cursor: pointer;
}

.lang-arrow {
    font-size: 12px;
    opacity: .6;
    transition: transform .25s ease;
}

.language-switch.open .lang-arrow {
    transform: rotate(180deg);
}

.lang-panel {
    position: absolute;
    top: 48px;
    right: 0;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-4);
    backdrop-filter: blur(10px);
    border: 1px solid var(--grey-900);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
}

.lang-panel a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: .7;
}

.lang-panel a:hover {
    opacity: 1;
}

@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.service-card-top {
    margin-top: var(--spacing-56);
}

.service-cards-row>[class*="col"] {
    display: flex;
}

.bg-card{
    border-radius: var(--radius-8);
    background-color: var(--grey-900);
    padding: 40px 32px;
}

.bg-card h5{
    margin-bottom: var(--spacing-16);
}

.bg-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bg-card li {
    color: var(--grey-200);
    padding-left: 0;
    font-size: var(--technical-p);
    font-family: var(--font-technical);
    line-height: 140%;
    letter-spacing: -0.16px;
    font-weight: 400;
}

.service-card {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    padding: 1px;
    border-radius: var(--radius-4);
    background: conic-gradient(from var(--angle),
            transparent 0deg,
            transparent 80deg,
            var(--yellow-500) 90deg,
            transparent 100deg,
            transparent 360deg);
    isolation: isolate;
    border: 1px solid var(--grey-800);
    background-color: var(--grey-950)
}

.service-card-inner {
    background: var(--grey-950);
    padding: 64px 32px;
    height: 100%;
    position: relative;
    z-index: 1;
}

.service-card h5 {
    margin-bottom: var(--spacing-16);
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-card li {
    color: var(--grey-200);
    padding-left: 0;
    font-size: var(--technical-p);
    font-family: var(--font-technical);
    line-height: 140%;
    letter-spacing: -0.16px;
    font-weight: 400;
}

.eye-label {
    color: var(--yellow-100);
}

.intro-text {
    margin-bottom: var(--spacing-32);
}

.img-border {
    border-radius: var(--radius-4);
}

.hero-header {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
}

.hero-header p {
    max-width: 600px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 2;
    pointer-events: none;
}

.hero-header .container {
    position: absolute;
    bottom: 80px;
    left: 0;
    right: 0;
    z-index: 3;
    pointer-events: none;
}

.hero-header .container a,
.hero-header .container button {
    pointer-events: auto;
}

.hero-header .dither-image {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-header .dither-image img,
.hero-header .dither-image canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-header--subpage {
    min-height: clamp(460px, 60vh, 80vh);
    align-items: flex-end;
}

.hero-header--subpage .container {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    padding-top: clamp(140px, 18vh, 200px);
    padding-bottom: clamp(40px, 5vh, 80px);
    z-index: 3;
    pointer-events: none;
}

.reveal-text {
}

.reveal-text .line {
    display: block;
    overflow: hidden;
    width: 100%;

}

.reveal-text .line span {
    display: block;
    transform: translateY(102%);
}

footer{
    background-color: var(--grey-1000);
    border-top: 1px solid var(--grey-800);
    padding-top: var(--spacing-112);
}

.footer-bottom{
    margin-top: var(--spacing-80);
}

footer h6{
    margin-bottom: var(--spacing-32);
}
footer h4{
    margin-bottom: var(--spacing-32);
}
footer ul{
     padding-left: 0;
    margin: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

footer li{
    list-style-type: none;
    color: var(--grey-150);
}

footer a{
    transition: color 0.3s ease;
}

footer a:hover{
    color: var(--yellow-500);
}

.dither-image {
    position: relative;
    overflow: hidden;
}

.dither-image img {
    opacity: 0;
    width: 100%;
    height: auto;
    display: block;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.pomiar{
font-family:var(--font-primary);
font-size:clamp(120px,22vw,420px);
line-height:0.9;
letter-spacing:-0.02em;
color:var(--grey-850);
font-variant-numeric:tabular-nums;
white-space:nowrap;
margin-bottom: var(--spacing-80);
}

.unit{
margin-left:0.02em;
}

.eye-label-grey{
    color: var(--grey-600);
}

.sprzet-logos{
    margin-top: var(--spacing-48);
}

.certyfikacja-home p > span {
    color: var(--grey-0);
}

.process{
display:flex;
flex-direction:column;
gap:8px;
margin-top: var(--spacing-40);
}

.process-item{
border-radius: var(--radius-4);
overflow:hidden;
cursor:pointer;
}

.process-header{
display:flex;
align-items:center;
gap:24px;
padding:16px 24px;
 background-color: var(--grey-1000);
 border-radius: var(--radius-4);
}

.process-number{
color:var(--yellow-500);
}

.process-header h6{
flex:1;
margin:0;
}

.process-arrow{
width:18px;
height:18px;
border-right:2px solid #999;
border-bottom:2px solid #999;
transform:rotate(-45deg);
transition:transform .4s;
}

.process-content{
height:0;
overflow:hidden;
padding:0 32px;
}

.process-content p{
padding-top:var(--spacing-16);
opacity:.8;
}

.process-item.active .process-content{
max-height:200px;
}

.process-item.active .process-arrow{
transform:rotate(45deg);
}

.persona1{
    margin-top: var(--spacing-80);
}

.persona1 h6{
    margin-top: var(--spacing-16);
    margin-bottom: 0px;
}
.persona2 h6{
    margin-top: var(--spacing-16);
    margin-bottom: 0px;
}

.persona1 .technical-small{
    color: var(--grey-200);
}
.persona2 .technical-small{
    color: var(--grey-200);
}

.fade-in{
opacity:0;
transform:translateY(20px);
}

.rozmowa {
    position: relative;
    width: 100%;
    overflow: hidden;
    background-color: var(--grey-100);
}

.steps-overlay {
    display: flex;
    align-items: flex-end;
    width: 100%;
    height: 328px;
    background-color: var(--grey-1000);
    margin-bottom: -1px;
}

.step-col {
    flex: 1;
    background-color: var(--grey-950);
    height: 100%;
    position: relative;
    overflow: hidden;
    transform: scaleY(0);
    transform-origin: bottom;
}

.mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--grey-1000);
    z-index: 2;
}

.step-col:nth-child(2) {
    flex: 0 0 calc(25% - 26px);
}

.rozmowa-tresc{
    background-color: var(--grey-1000);
    padding-bottom: var(--section);
}

.rozmowa-tresc .display2{
    color: var(--grey-0);
    margin-bottom: var(--spacing-24);
}

.rozmowa-tresc p{
    max-width: 600px;
}

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 1050;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    visibility: hidden;
}

.mobile-menu-bg {
    position: absolute;
    inset: 0;
    background-color: var(--grey-1000);
    z-index: 0;
}

.mobile-menu-noise {
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    background-size: 200px;
    opacity: 0.4;
    pointer-events: none;
}

.navbar-main.scrolled .navbar-brand img{
    transform: scale(.75);
}

.mobile-menu-deco {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    overflow: hidden;
}

.deco-line {
    display: block;
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--grey-800) 30%, var(--grey-800) 70%, transparent);
    transform-origin: left center;
}

.deco-line-1 {
    top: 70px;
    left: 0;
    right: 0;
    width: 100%;
}

.deco-line-2 {
    bottom: 90px;
    left: 0;
    right: 0;
    width: 100%;
}

.mobile-menu-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 88px 32px 40px;
}

.mobile-menu-label {
    font-family: var(--font-technical);
    font-size: var(--technical-caption);
    color: var(--yellow-100);
    letter-spacing: 0.2px;
    margin-bottom: 32px;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 0;
}

.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--grey-900);
    text-decoration: none;
    color: var(--grey-0);
    position: relative;
    overflow: hidden;
}

.mobile-nav-item:first-child {
    border-top: 1px solid var(--grey-900);
}

.mobile-nav-number {
    font-family: var(--font-technical);
    font-size: var(--technical-caption);
    color: var(--yellow-500);
    min-width: 24px;
    letter-spacing: 0.1px;
}

.mobile-nav-text {
    font-family: var(--font-primary);
    font-size: clamp(24px, 6vw, 36px);
    font-weight: 300;
    letter-spacing: -0.5px;
    line-height: 1;
    flex: 1;
    color: var(--grey-0);
    transition: color 0.25s ease;
}

.mobile-nav-item:hover .mobile-nav-text {
    color: var(--yellow-400);
}

.mobile-nav-arrow {
    font-size: 20px;
    color: var(--yellow-500);
    opacity: 0.3;
    line-height: 1;
    margin-left: auto;
    font-family: var(--font-technical);
}

.mobile-menu-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    margin-top: 8px;
}

.mobile-lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-lang {
    font-family: var(--font-technical);
    font-size: var(--technical-small);
    color: var(--grey-500);
    text-decoration: none;
    transition: color 0.2s ease;
    letter-spacing: 0.5px;
}

.mobile-lang:hover,
.mobile-lang.active {
    color: var(--grey-0);
}

.mobile-lang-sep {
    color: var(--grey-800);
    font-family: var(--font-technical);
    font-size: 12px;
}

.mobile-menu-contact {
    color: var(--grey-600);
    font-size: var(--technical-small);
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: none;
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-4);
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s ease;
}

.mobile-menu-close:hover {
    border-color: var(--yellow-500);
}

.close-line {
    display: block;
    width: 16px;
    height: 1.5px;
    background-color: var(--grey-0);
    border-radius: 2px;
    position: absolute;
    transition: background-color 0.2s ease;
}

.close-line:nth-child(1) { transform: rotate(45deg); }
.close-line:nth-child(2) { transform: rotate(-45deg); }

.mobile-menu-close:hover .close-line {
    background-color: var(--yellow-500);
}

.skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            z-index: 9999;
            padding: .5rem 1rem;
            background: #fff;
            color: #000;
            font-weight: 600;
            text-decoration: none;
            border-radius: 0 0 4px 4px;
            transition: top .15s ease;
        }
        .skip-link:focus {
            top: 0;
        }

        .hamburger-line,
        .close-line,
        .deco-line,
        .mobile-nav-number,
        .mobile-nav-arrow,
        .lang-arrow,
        .process-arrow,
        .grid-overlay {
            aria-hidden: true;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        :focus-visible {
            outline: 3px solid #f5c400;
            outline-offset: 3px;
        }

.contact-form {
    margin-top: var(--spacing-40);
}

.contact-form label.technical-small,
.contact-form legend.technical-small {
    display: block;
    margin-bottom: var(--spacing-8);
    color: var(--grey-300);
    font-family: var(--font-technical);
    font-size: var(--technical-small);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-input {
    display: block;
    width: 100%;
    background: var(--grey-900);
    border: 1px solid var(--grey-700);
    border-radius: var(--radius-4);
    color: var(--grey-0);
    font-family: var(--font-technical);
    font-size: var(--technical-p);
    line-height: 1.4;
    padding: 14px 16px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.form-input::placeholder {
    color: var(--grey-600);
}

.form-input:focus {
    border-color: var(--yellow-500);
    box-shadow: 0 0 0 2px rgba(255, 242, 0, 0.08);
}

.form-input:focus-visible {
    outline: none;
}

.form-textarea {
    resize: vertical;
    min-height: 140px;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-select option {
    background: var(--grey-900);
    color: var(--grey-0);
}

.form-check-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    padding: 6px 0;
    color: var(--grey-200);
    font-size: var(--primary-p);
    font-family: var(--font-primary);
    line-height: 1.4;
}

.form-check-input {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    background: var(--grey-900);
    border: 1px solid var(--grey-700);
    border-radius: var(--radius-4);
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
    position: relative;
}

.form-check-input:checked {
    background: var(--yellow-500);
    border-color: var(--yellow-500);
}

.form-check-input:checked::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='10' viewBox='0 0 12 10'%3E%3Cpath d='M1 5l3.5 3.5L11 1' stroke='%230A0A00' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.form-check-input:focus-visible {
    outline: 2px solid var(--yellow-500);
    outline-offset: 2px;
}

.contact-form fieldset {
    border: none;
    padding: 0;
    margin: 0;
}

.form-rodo {
    align-items: flex-start;
}

.form-rodo .technical-small {
    color: var(--grey-400);
    line-height: 1.5;
    text-transform: none;
    letter-spacing: 0;
}

.form-success {
    margin-top: var(--spacing-24);
    padding: 16px 20px;
    border: 1px solid var(--yellow-500);
    border-radius: var(--radius-4);
    background: rgba(255, 242, 0, 0.04);
}

.form-success p {
    color: var(--yellow-100);
    margin: 0;
}

.form-error {
    margin-top: var(--spacing-24);
    padding: 16px 20px;
    border: 1px solid #c0392b;
    border-radius: var(--radius-4);
    background: rgba(192, 57, 43, 0.06);
}

.form-error p {
    color: #e88;
    margin: 0;
}

#form-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.contact-sidebar-inner {
    position: sticky;
    top: 120px;
    padding-top: var(--spacing-40);
}

.contact-link {
    color: var(--grey-0);
    text-decoration: none;
    font-size: var(--primary-h5);
    font-family: var(--font-primary);
    font-weight: 400;
    transition: color 0.2s ease;
}

.contact-link:hover {
    color: var(--yellow-500);
}

.contact-divider {
    border: none;
    border-top: 1px solid var(--grey-800);
    margin: var(--spacing-32) 0;
}

.services-stack {
    
}

.stack-card {
    will-change: transform;
    transform-origin: center top;
    position: sticky;
    top: 80px;
    height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    overflow: hidden;
    border-radius: var(--radius-16);
}

.card-stack-1{
    background-color: var(--grey-900);
}
.card-stack-2{
    background-color: var(--grey-850);
}
.card-stack-3{
    background-color: var(--grey-800);
}

.stack-card > .container {
    width: 100%;
    padding-top: var(--spacing-80);
    padding-bottom: var(--spacing-80);
}

#stack-fiber  { top: 80px;  z-index: 1; }
#stack-lan    { top: 104px; z-index: 2; }
#stack-power  { top: 128px; z-index: 3; }

.stack-card .eye-label {
    margin-bottom: var(--spacing-16);
}

.stack-card-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-24) 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: var(--grey-200);
    font-family: var(--font-technical);
    font-size: var(--technical-p);
    line-height: 1.5;
}

.stack-card-list li {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.stack-card-list li::before {
    content: "→";
    color: var(--yellow-500);
    flex-shrink: 0;
    font-size: 12px;
}



.stats-row {
    border-top: 1px solid var(--grey-800);
    padding-top: var(--spacing-48);
}

.stat-item {
    border-right: 1px solid var(--grey-800);
    padding: 0 var(--spacing-32);
}

.stat-item:last-child {
    border-right: none;
}

.stat-item:first-child {
    padding-left: 0;
}

.stat-value {
    font-family: var(--font-technical);
    font-size: clamp(32px, 5vw, 56px);
    color: var(--grey-0);
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--spacing-16);
}

.project-card {
    display: block;
}

.project-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-16);
    margin-top: var(--spacing-24);
}

.project-year {
    color: var(--grey-700) !important;
}

.project-card h3 {
    font-size: var(--primary-h4);
    margin-bottom: var(--spacing-16);
}

.project-specs {
    list-style: none;
    padding: 0;
    margin: var(--spacing-24) 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--grey-800);
    padding-top: var(--spacing-24);
}

.project-specs li {
    display: flex;
    gap: 12px;
    align-items: baseline;
    font-size: var(--primary-p);
    color: var(--grey-200);
}

.project-specs .technical-small {
    flex-shrink: 0;
    min-width: 90px;
}

.project-card--featured {
    padding: var(--spacing-48);
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-8);
    background: var(--grey-900);
    transition: border-color 0.3s ease;
}

.project-card--featured:hover {
    border-color: var(--grey-600);
}

.project-card--featured .project-meta {
    margin-top: 0;
}

.usp-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.usp-item {
    display: flex;
    gap: var(--spacing-32);
    align-items: flex-start;
    padding: var(--spacing-32) 0;
    border-bottom: 1px solid var(--grey-800);
}

.usp-item:first-child {
    border-top: 1px solid var(--grey-800);
}

.usp-item .process-number {
    flex-shrink: 0;
    padding-top: 4px;
    min-width: 32px;
}

.usp-item h5 {
    margin-bottom: var(--spacing-8);
}

.usp-item p {
    margin: 0;
    color: var(--grey-300);
}

.area-block {
    padding: var(--spacing-32) 0;
    border-top: 1px solid var(--grey-800);
}

.area-block .pomiar {
    font-size: clamp(80px, 14vw, 220px);
    margin-bottom: var(--spacing-24);
    color: var(--grey-800);
}

.area-block h5 {
    margin-bottom: var(--spacing-8);
}

.norms-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: var(--spacing-40) 0 0;
}

.norm-row {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-24);
    padding: var(--spacing-16) 0;
    border-bottom: 1px solid var(--grey-800);
}

.norm-row:first-child {
    border-top: 1px solid var(--grey-800);
}

.norm-row dt {
    flex-shrink: 0;
    min-width: 160px;
    font-family: var(--font-technical);
    font-size: var(--technical-small);
    color: var(--grey-0);
    letter-spacing: 0.02em;
}

.norm-row dd {
    margin: 0;
    color: var(--grey-300);
    font-size: var(--primary-p);
}

.brand-logo {
    height: 32px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    filter: brightness(0.7);
    transition: filter 0.3s ease;
}

.service-card:hover .brand-logo {
    filter: brightness(1);
}

::selection {
  background: var(--yellow-500);
  color: var(--grey-1000);
}

::-moz-selection {
  background: var(--yellow-500);
  color: var(--grey-1000);
}

.line-rodo{
    margin-bottom: var(--spacing-80);
}

.error-page .display2{
color: var(--yellow-500);
}

@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
}

@media (min-width: 1920px) {
.container,
    .container-lg,
    .container-md,
    .container-sm,
    .container-xl,
    .container-xxl {
        max-width: 1840px;
    }
}

@media (min-width: 992px) {
.mobile-menu-toggle {
        display: none !important;
    }
}

@media (max-width: 1440px) {
:root{

--spacing-24: 22px;
--spacing-32: 30px;
--spacing-40: 36px;
--spacing-48: 42px;
--spacing-56: 50px;
--spacing-64: 56px;
--spacing-80: 70px;
--spacing-112: 96px;
--spacing-128: 112px;
--spacing-160: 140px;
--spacing-192: 168px;
--spacing-224: 196px;
--section: 160px;

--primary-display2: 80px;
--primary-display1: 64px;
--primary-h1: 52px;
--primary-h2: 42px;
--primary-h3: 34px;
--primary-h4: 28px;
--primary-h5: 22px;
--primary-h6: 18px;

}
}

@media (max-width: 1024px) {
:root{

--spacing-24: 20px;
--spacing-32: 26px;
--spacing-40: 32px;
--spacing-48: 36px;
--spacing-56: 42px;
--spacing-64: 48px;
--spacing-80: 60px;
--spacing-112: 80px;
--spacing-128: 96px;
--spacing-160: 112px;
--spacing-192: 128px;
--spacing-224: 160px;
--section: 128px;

--primary-display2: 64px;
--primary-display1: 52px;
--primary-h1: 42px;
--primary-h2: 34px;
--primary-h3: 28px;
--primary-h4: 24px;
--primary-h5: 20px;
--primary-h6: 18px;

}

.navbar-main.scrolled{
        width: calc(100% - 20%);
    }
    .service-card-inner{
      padding: 32px 16px;
    }
}

@media (max-width: 991px) {
.navbar-collapse {
        display: none !important;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 0;
        width: 44px;
        height: 44px;
        background: none;
        border: 1px solid var(--grey-800);
        border-radius: var(--radius-4);
        padding: 0;
        cursor: pointer;
        position: relative;
        z-index: 1100;
        transition: border-color 0.3s ease;
    }

    .mobile-menu-toggle:hover {
        border-color: var(--yellow-500);
    }

    .hamburger-line {
        display: block;
        width: 18px;
        height: 1.5px;
        background-color: var(--grey-0);
        border-radius: 2px;
        transform-origin: center center;
        position: absolute;
    }

    .hamburger-line:nth-child(1) { top: calc(50% - 4px); }
    .hamburger-line:nth-child(2) { top: calc(50% + 3px); }

    .mobile-menu-toggle.is-open .hamburger-line {
        background-color: var(--yellow-500);
    }

.grid-overlay {
        display: none;
    }

.contact-sidebar-inner {
        position: static;
        padding-top: var(--spacing-64);
        border-top: 1px solid var(--grey-800);
        margin-top: var(--spacing-48);
    }
}

@media (max-width: 768px) {
:root{

--spacing-24: 18px;
--spacing-32: 24px;
--spacing-40: 28px;
--spacing-48: 32px;
--spacing-56: 36px;
--spacing-64: 40px;
--spacing-80: 48px;
--spacing-112: 64px;
--spacing-128: 72px;
--spacing-160: 88px;
--spacing-192: 96px;
--spacing-224: 120px;
--section: 96px;

--primary-display2: 52px;
--primary-display1: 42px;
--primary-h1: 34px;
--primary-h2: 28px;
--primary-h3: 24px;
--primary-h4: 20px;
--primary-h5: 18px;
--primary-h6: 17px;

}

.hero-header {
        min-height: 100svh;
        align-items: flex-start;
    }

    .hero-header .container {
        position: relative;
        top: auto;
        bottom: auto;
        left: auto;
        right: auto;
        padding-top: 160px;
        padding-bottom: var(--spacing-80);
        pointer-events: none;
        z-index: 3;
    }

    .hero-header .col-md-7 {
        width: 100%;
    }

    .hero-header .d-flex {
        flex-direction: column;
        gap: 12px !important;
    }

    .intro-text .col-2 {
        width: 100%;
        margin-bottom: 12px;
    }

    .intro-text .col-md-4 {
        width: 100%;
    }

    .two-columns {
        column-count: 1;
    }

    .service-cards-row .col-md-6 {
        width: 100%;
    }

    .section {
        margin-bottom: var(--section);
    }

    .persona1,
    .persona2 {
        margin-top: var(--spacing-48);
    }

    .navbar-main.scrolled {
        width: calc(100% - 32px);
    }

    .steps-overlay {
        height: 180px;
    }

    .navbar-brand img{
        max-height: 36px;
    }

    footer .text-end{
        text-align: left !important;
    }

    .hero-header--subpage {
        min-height: 100vh;
    }

    .hero-header--subpage .container {
        padding-top: 180px;
        padding-bottom: var(--spacing-48);
    }
}

@media (max-width: 767px) {
.stack-card {
        position: static;
        height: auto;
        display: block;
        overflow: visible;
        padding-top: var(--spacing-64);
        padding-bottom: var(--spacing-64);
        border-top: 1px solid var(--grey-800);
        transform: none !important;
        will-change: auto;
        z-index: auto !important;
    }

    .stack-card > .container {
        padding-top: 0;
        padding-bottom: 0;
    }

    #stack-fiber,
    #stack-lan,
    #stack-power {
        top: auto;
        z-index: auto !important;
    }

    .stack-card-image {
        display: block;
        margin-top: var(--spacing-32);
    }

    .stack-card-image .dither-image {
        height: 260px;
    }

    .stack-card-image .dither-image img,
    .stack-card-image .dither-image canvas {
        position: absolute;
    }

    .stack-card-image {
        margin-top: var(--spacing-32);
    }

    .stack-card-image .dither-image {
        min-height: 260px;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--grey-800);
        padding: var(--spacing-24) 0;
    }

    .stat-item:last-child {
        border-bottom: none;
    }

    .project-card--featured {
        padding: var(--spacing-24);
    }

.usp-item {
        gap: var(--spacing-16);
    }

.area-block {
        padding: var(--spacing-24) 0;
    }
}

@media (max-width: 575px) {
.norm-row {
        flex-direction: column;
        gap: var(--spacing-4);
    }

    .norm-row dt {
        min-width: unset;
    }
}

@media (max-width: 480px) {
:root{

--spacing-24: 16px;
--spacing-32: 20px;
--spacing-40: 24px;
--spacing-48: 28px;
--spacing-56: 32px;
--spacing-64: 36px;
--spacing-80: 40px;
--spacing-112: 48px;
--spacing-128: 56px;
--spacing-160: 64px;
--spacing-192: 72px;
--spacing-224: 88px;
--section: 72px;

--primary-display2: 42px;
--primary-display1: 34px;
--primary-h1: 28px;
--primary-h2: 24px;
--primary-h3: 22px;
--primary-h4: 20px;
--primary-h5: 18px;
--primary-h6: 17px;

}

.pomiar {
    font-size: clamp(90px, 22vw, 420px);
}

.mobile-menu-content {
        padding: 80px 24px 32px;
    }

    .mobile-nav-item {
        padding: 16px 0;
    }
}

@media (hover: hover) {
.dither-image:hover canvas {
        filter: none;
    }
.step-col:first-child {

    padding-left: 14px;
}
.step-col:last-child {
    border-right: none;
}
}