/* ==========================================================================
   sylvio.pl - „Inżynierski Przeskok Cyfrowy”
   Ciemny premium (domyślnie) + motyw jasny. Jeden boczny margines dla logo, hero i sekcji.
   ========================================================================== */

/* ---------- Font: TT Norms Pro (licencja webowa, pliki w assets/fonts/) ---------- */
@font-face {
    font-family: "TT Norms Pro";
    src: url("../fonts/TTNormsPro-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* Medium (500) i Bold (700) dołącza index.php, gdy pliki TTNormsPro-Medium.woff2 / -Bold.woff2 istnieją. */

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

/* ---------- Tokeny ---------- */
:root {
    color-scheme: dark;

    /* paleta bazowa */
    --ink: #070A12;
    --graphite: #141A27;
    --graphite-2: #1B2334;
    --ivory: #F2F0E8;
    --ivory-2: #FFFFFF;
    --ivory-3: #E7E4DA;
    --cyan: #41D9FF;
    --cyan-deep: #0A7FA8;
    --lime: #C7FF62;
    --lime-deep: #3F6B00;

    /* zestaw ciemny */
    --dark-bg: var(--ink);
    --dark-surface: var(--graphite);
    --dark-surface-2: var(--graphite-2);
    --dark-text: var(--ivory);
    --dark-muted: rgba(242, 240, 232, 0.68);
    --dark-line: rgba(242, 240, 232, 0.12);
    --dark-line-strong: rgba(242, 240, 232, 0.24);
    --dark-accent: var(--cyan);
    --dark-glow: var(--cyan);
    --dark-lime: var(--lime);
    --dark-lime-text: var(--lime);
    --dark-logo-light: block;
    --dark-logo-dark: none;
    --dark-glow-alpha: 0.55;

    /* zestaw jasny */
    --light-bg: var(--ivory);
    --light-surface: var(--ivory-2);
    --light-surface-2: var(--ivory-3);
    --light-text: var(--ink);
    --light-muted: rgba(7, 10, 18, 0.68);
    --light-line: rgba(7, 10, 18, 0.12);
    --light-line-strong: rgba(7, 10, 18, 0.26);
    --light-accent: var(--cyan-deep);
    --light-glow: #18B5E6;
    --light-lime: #86C400;
    --light-lime-text: var(--lime-deep);
    --light-logo-light: none;
    --light-logo-dark: block;
    --light-glow-alpha: 0.32;

    /* aktywne tokeny (domyślnie ciemne) */
    --bg: var(--dark-bg);
    --surface: var(--dark-surface);
    --surface-2: var(--dark-surface-2);
    --text: var(--dark-text);
    --muted: var(--dark-muted);
    --line: var(--dark-line);
    --line-strong: var(--dark-line-strong);
    --accent: var(--dark-accent);
    --glow: var(--dark-glow);
    --lime-ui: var(--dark-lime);
    --lime-text: var(--dark-lime-text);
    --logo-light: var(--dark-logo-light);
    --logo-dark: var(--dark-logo-dark);
    --glow-alpha: var(--dark-glow-alpha);
    --on-accent: var(--ink);

    /* układ */
    --gutter: clamp(16px, 5vw, 72px);
    --max: 1520px;
    --header-h: 84px;
    --section-y: clamp(84px, 11vw, 160px);
    --radius: 18px;
    --radius-sm: 12px;

    /* typografia */
    --font: "TT Norms Pro", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --fs-overline: clamp(0.72rem, 0.65rem + 0.3vw, 0.86rem);
    --fs-body: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
    --fs-lead: clamp(1.1rem, 1rem + 0.5vw, 1.4rem);
    --fs-h2: clamp(2.2rem, 1.6rem + 3.2vw, 4.6rem);
    --fs-h3: clamp(1.35rem, 1.2rem + 0.8vw, 1.9rem);

    /* ruch */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* jasny motyw: wybór systemu (gdy nic nie zapisano) albo data-theme="light" */
@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
        color-scheme: light;
        --bg: var(--light-bg);
        --surface: var(--light-surface);
        --surface-2: var(--light-surface-2);
        --text: var(--light-text);
        --muted: var(--light-muted);
        --line: var(--light-line);
        --line-strong: var(--light-line-strong);
        --accent: var(--light-accent);
        --glow: var(--light-glow);
        --lime-ui: var(--light-lime);
        --lime-text: var(--light-lime-text);
        --logo-light: var(--light-logo-light);
        --logo-dark: var(--light-logo-dark);
        --glow-alpha: var(--light-glow-alpha);
        --on-accent: var(--ivory);
    }
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: var(--light-bg);
    --surface: var(--light-surface);
    --surface-2: var(--light-surface-2);
    --text: var(--light-text);
    --muted: var(--light-muted);
    --line: var(--light-line);
    --line-strong: var(--light-line-strong);
    --accent: var(--light-accent);
    --glow: var(--light-glow);
    --lime-ui: var(--light-lime);
    --lime-text: var(--light-lime-text);
    --logo-light: var(--light-logo-light);
    --logo-dark: var(--light-logo-dark);
    --glow-alpha: var(--light-glow-alpha);
    --on-accent: var(--ivory);
}

:root[data-theme="dark"] {
    color-scheme: dark;
}

/* Sekcja odwrócona („jasna” w ciemnym motywie, „ciemna” w jasnym) */
.invert {
    --bg: var(--light-bg);
    --surface: var(--light-surface);
    --surface-2: var(--light-surface-2);
    --text: var(--light-text);
    --muted: var(--light-muted);
    --line: var(--light-line);
    --line-strong: var(--light-line-strong);
    --accent: var(--light-accent);
    --glow: var(--light-glow);
    --lime-ui: var(--light-lime);
    --lime-text: var(--light-lime-text);
    --glow-alpha: var(--light-glow-alpha);
    --on-accent: var(--ivory);
    color-scheme: light;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .invert {
        --bg: var(--dark-bg);
        --surface: var(--dark-surface);
        --surface-2: var(--dark-surface-2);
        --text: var(--dark-text);
        --muted: var(--dark-muted);
        --line: var(--dark-line);
        --line-strong: var(--dark-line-strong);
        --accent: var(--dark-accent);
        --glow: var(--dark-glow);
        --lime-ui: var(--dark-lime);
        --lime-text: var(--dark-lime-text);
        --glow-alpha: var(--dark-glow-alpha);
        --on-accent: var(--ink);
        color-scheme: dark;
    }
}

:root[data-theme="light"] .invert {
    --bg: var(--dark-bg);
    --surface: var(--dark-surface);
    --surface-2: var(--dark-surface-2);
    --text: var(--dark-text);
    --muted: var(--dark-muted);
    --line: var(--dark-line);
    --line-strong: var(--dark-line-strong);
    --accent: var(--dark-accent);
    --glow: var(--dark-glow);
    --lime-ui: var(--dark-lime);
    --lime-text: var(--dark-lime-text);
    --glow-alpha: var(--dark-glow-alpha);
    --on-accent: var(--ink);
    color-scheme: dark;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
}

/* Lenis (płynne przewijanie) przejmuje scroll, gdy się załaduje */
html.lenis,
html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font);
    font-size: var(--fs-body);
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* ziarno na całej stronie */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 60;
    pointer-events: none;
    opacity: 0.07;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

:root[data-theme="light"] body::after {
    opacity: 0.05;
}

img,
svg,
canvas {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
dl,
figure,
fieldset {
    margin: 0;
}

ul,
ol {
    padding: 0;
    list-style: none;
}

fieldset {
    padding: 0;
    border: 0;
    min-width: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

input,
textarea {
    font: inherit;
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

::selection {
    background: var(--accent);
    color: var(--on-accent);
}

/* ---------- Narzędzia ---------- */
.container {
    width: 100%;
    max-width: var(--max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

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

.skip-link {
    position: fixed;
    top: 12px;
    left: var(--gutter);
    z-index: 200;
    padding: 10px 16px;
    background: var(--accent);
    color: var(--on-accent);
    border-radius: 999px;
    transform: translateY(-200%);
    transition: transform 0.2s;
}

.skip-link:focus {
    transform: none;
}

.section {
    position: relative;
    padding-block: var(--section-y);
    scroll-margin-top: calc(var(--header-h) + 12px);
}

.section__head {
    max-width: 880px;
    margin-bottom: clamp(40px, 6vw, 72px);
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    font-size: var(--fs-overline);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
}

.kicker::before {
    content: "";
    width: 28px;
    height: 1px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--glow);
}

.section__title {
    font-size: var(--fs-h2);
    font-weight: 400;
    line-height: 1.02;
    letter-spacing: -0.03em;
    text-wrap: balance;
    overflow-wrap: normal;
}

.section__intro {
    margin-top: 20px;
    max-width: 64ch;
    font-size: var(--fs-lead);
    line-height: 1.5;
    color: var(--muted);
}

/* przyciski */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 56px;
    padding: 0 28px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    white-space: nowrap;
    transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background-color 0.3s, color 0.3s, border-color 0.3s;
    will-change: transform;
}

.btn--primary {
    background: var(--accent);
    color: var(--on-accent);
    box-shadow: 0 0 0 0 rgba(65, 217, 255, 0), 0 10px 40px -10px color-mix(in srgb, var(--glow) 60%, transparent);
}

.btn--primary:hover {
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--glow) 18%, transparent), 0 14px 50px -8px color-mix(in srgb, var(--glow) 70%, transparent);
}

.btn--primary .btn__arrow {
    transition: transform 0.35s var(--ease-out);
}

.btn--primary:hover .btn__arrow {
    transform: translateX(4px);
}

.btn--ghost {
    border: 1px solid var(--line-strong);
    color: var(--text);
    background: color-mix(in srgb, var(--surface) 40%, transparent);
    backdrop-filter: blur(8px);
}

.btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.link-arrow {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 2px;
    font-weight: 700;
    color: var(--accent);
}

.link-arrow::after {
    content: "→";
    transition: transform 0.3s var(--ease-out);
}

.link-arrow--download::after {
    content: "↓";
}

.link-arrow--up::after {
    content: "↑";
}

.link-arrow--back::after {
    content: none;
}

.link-arrow--back::before {
    content: "←";
    transition: transform 0.3s var(--ease-out);
}

.link-arrow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease-out);
}

.link-arrow--back::before {
    position: static;
    height: auto;
    background: none;
    transform: none;
}

.link-arrow:hover::before {
    transform: scaleX(1);
}

.link-arrow:hover::after {
    transform: translateX(4px);
}

.link-arrow--up:hover::after {
    transform: translateY(-4px);
}

.link-arrow--download:hover::after {
    transform: translateY(3px);
}

.link-arrow--back:hover::before {
    transform: translateX(-4px);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border: 1px solid color-mix(in srgb, var(--lime-ui) 55%, transparent);
    border-radius: 999px;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lime-text);
    white-space: nowrap;
}

.badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lime-ui);
    box-shadow: 0 0 10px var(--lime-ui);
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.chip {
    padding: 6px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 0.86rem;
    color: var(--text);
    background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

/* ---------- Linie diagramów (wspólne dla wszystkich SVG) ---------- */
.d-line {
    fill: none;
    stroke: var(--glow);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.d-fill {
    fill: color-mix(in srgb, var(--glow) 7%, transparent);
}

.d-fill--soft {
    fill: color-mix(in srgb, var(--glow) 13%, transparent);
}

.d-node {
    fill: var(--lime-ui);
    filter: drop-shadow(0 0 6px var(--lime-ui));
}

.d-line--lime {
    stroke: var(--lime-ui);
}

.d-trace__flow {
    fill: none;
    stroke: var(--glow);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-dasharray: 6 26;
    stroke-dashoffset: 0;
    filter: drop-shadow(0 0 6px var(--glow));
    animation: trace-flow 2.4s linear infinite;
}

@keyframes trace-flow {
    to {
        stroke-dashoffset: -64;
    }
}

/* ==========================================================================
   NAWIGACJA
   ========================================================================== */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    height: var(--header-h);
    transition: background-color 0.4s ease, backdrop-filter 0.4s ease, border-color 0.4s ease, transform 0.4s var(--ease-out);
    border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border-bottom-color: var(--line);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 100%;
}

.logo {
    display: block;
    flex: 0 0 auto;
    width: clamp(92px, 9vw, 124px);
    padding: 6px 0;
}

.logo__img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 14px color-mix(in srgb, var(--glow) 35%, transparent));
}

.logo__img--on-dark {
    display: var(--logo-light);
}

.logo__img--on-light {
    display: var(--logo-dark);
}

.site-nav__list {
    display: flex;
    gap: clamp(14px, 2vw, 30px);
}

.site-nav__link {
    position: relative;
    display: inline-block;
    padding: 8px 2px;
    font-size: 0.92rem;
    letter-spacing: 0.04em;
    color: var(--muted);
    transition: color 0.25s;
}

.site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 2px;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease-out);
}

.site-nav__link:hover,
.site-nav__link.is-current {
    color: var(--text);
}

.site-nav__link:hover::after,
.site-nav__link.is-current::after {
    transform: scaleX(1);
}

.site-header__tools {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.86rem;
    letter-spacing: 0.1em;
}

.lang-switch__link {
    padding: 6px 4px;
    color: var(--muted);
    transition: color 0.25s;
}

.lang-switch__link:hover {
    color: var(--text);
}

.lang-switch__link.is-active {
    color: var(--accent);
}

.lang-switch__sep {
    color: var(--line-strong);
}

.theme-toggle,
.nav-toggle {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    color: var(--text);
    background: color-mix(in srgb, var(--surface) 40%, transparent);
    transition: border-color 0.25s, color 0.25s, transform 0.3s var(--ease-out);
}

.theme-toggle:hover,
.nav-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.theme-toggle__icon {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    grid-area: 1 / 1;
    transition: opacity 0.3s, transform 0.5s var(--ease-out);
}

.theme-toggle__icon--sun {
    opacity: 1;
    transform: rotate(0);
}

.theme-toggle__icon--moon {
    opacity: 0;
    transform: rotate(-60deg) scale(0.6);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .theme-toggle__icon--sun {
        opacity: 0;
        transform: rotate(60deg) scale(0.6);
    }

    :root:not([data-theme="dark"]) .theme-toggle__icon--moon {
        opacity: 1;
        transform: none;
    }
}

:root[data-theme="light"] .theme-toggle__icon--sun {
    opacity: 0;
    transform: rotate(60deg) scale(0.6);
}

:root[data-theme="light"] .theme-toggle__icon--moon {
    opacity: 1;
    transform: none;
}

:root[data-theme="dark"] .theme-toggle__icon--sun {
    opacity: 1;
    transform: none;
}

:root[data-theme="dark"] .theme-toggle__icon--moon {
    opacity: 0;
    transform: rotate(-60deg) scale(0.6);
}

.no-js .theme-toggle {
    display: none;
}

.nav-toggle {
    display: none;
    position: relative;
}

.nav-toggle__bar {
    position: absolute;
    left: 13px;
    width: 18px;
    height: 1.5px;
    background: currentColor;
    transition: transform 0.35s var(--ease-out), top 0.35s var(--ease-out);
}

.nav-toggle__bar:first-child {
    top: 18px;
}

.nav-toggle__bar:last-child {
    top: 25px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child {
    top: 21px;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child {
    top: 21px;
    transform: rotate(-45deg);
}

@media (max-width: 1023px) {
    .site-header {
        --header-h: 72px;
    }

    .js .nav-toggle {
        display: inline-grid;
    }

    .js .site-nav {
        position: fixed;
        inset: var(--header-h) 0 0 0;
        z-index: 90;
        padding: 24px var(--gutter) 40px;
        background: color-mix(in srgb, var(--bg) 92%, transparent);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px);
        transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out), visibility 0s linear 0.35s;
        overflow: auto;
    }

    .js .site-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: none;
        transition-delay: 0s;
    }

    .js .site-nav__list {
        flex-direction: column;
        gap: 4px;
    }

    .js .site-nav__link {
        display: block;
        padding: 16px 0;
        font-size: clamp(1.6rem, 6vw, 2.4rem);
        letter-spacing: -0.02em;
        border-bottom: 1px solid var(--line);
        color: var(--text);
    }

    .js .site-nav__link::after {
        content: none;
    }

    /* bez JavaScriptu: zwykły, przewijany rząd linków pod nagłówkiem */
    .no-js .site-header {
        height: auto;
    }

    .no-js .site-header__inner {
        flex-wrap: wrap;
        padding-block: 10px;
        row-gap: 4px;
    }

    .no-js .site-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
    }

    .no-js .site-nav__list {
        gap: 18px;
        white-space: nowrap;
    }
}

/* ==========================================================================
   1) HERO
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100svh;
    padding-top: calc(var(--header-h) + 16px);
    padding-bottom: 84px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    contain: paint;
    isolation: isolate;
}

.hero__canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.9;
}

.hero__lines {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(60% 50% at 78% 42%, color-mix(in srgb, var(--glow) 16%, transparent) 0%, transparent 70%),
        radial-gradient(40% 30% at 15% 80%, color-mix(in srgb, var(--lime-ui) 7%, transparent) 0%, transparent 70%),
        linear-gradient(to right, var(--line) 1px, transparent 1px) 0 0 / clamp(80px, 10vw, 160px) 100% repeat-x;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.35) 70%, transparent);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.35) 70%, transparent);
}

.hero__inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(24px, 4vw, 64px);
    align-items: center;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 920px;
}

.hero__overline {
    margin-bottom: clamp(18px, 2.4vw, 30px);
    font-size: var(--fs-overline);
    letter-spacing: 0.26em;
    color: var(--muted);
}

.hero__title {
    font-size: clamp(2.9rem, 6.6vw, 7.8rem);
    font-weight: 400;
    line-height: 0.94;
    letter-spacing: -0.04em;
    overflow-wrap: normal;
    word-break: keep-all;
}

.hero__w-wrap {
    display: inline-block;
    overflow: hidden;
    vertical-align: top;
    padding: 0.02em 0.04em 0.12em 0.02em;
    margin: -0.02em -0.04em -0.12em -0.02em;
}

.hero__w {
    display: inline-block;
    will-change: transform;
}

.no-js .hero__w-wrap,
.hero__title.is-done .hero__w-wrap {
    overflow: visible;
}

.hero__w--accent {
    color: var(--accent);
    text-shadow: 0 0 34px color-mix(in srgb, var(--glow) calc(var(--glow-alpha) * 80%), transparent);
}

.hero__lead {
    max-width: 56ch;
    margin-top: clamp(22px, 3vw, 36px);
    font-size: var(--fs-lead);
    line-height: 1.5;
    color: var(--muted);
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: clamp(26px, 3.4vw, 40px);
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 44px;
    margin-top: clamp(36px, 5vw, 64px);
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.stat {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-size: 0.92rem;
    color: var(--muted);
}

.stat__value {
    font-size: clamp(1.7rem, 2.4vw, 2.3rem);
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--lime-text);
    font-variant-numeric: tabular-nums;
}

.hero__visual {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.diagram {
    position: relative;
    width: min(100%, 560px);
    aspect-ratio: 1;
    perspective: 1200px;
    transform-style: preserve-3d;
}

.diagram__layer {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
    transform: rotateX(calc(var(--ty, 0) * -1deg)) rotateY(calc(var(--tx, 0) * 1deg)) translateZ(var(--z, 0));
    transition: transform 0.6s var(--ease-out);
    will-change: transform;
}

.diagram__layer--back {
    --z: -70px;
    animation: float-slow 9s ease-in-out infinite;
}

.diagram__layer--mid {
    --z: 0px;
    animation: float-slow 8s ease-in-out infinite reverse;
}

.diagram__layer--front {
    --z: 60px;
    animation: float-slow 10s ease-in-out infinite;
}

@keyframes float-slow {
    0%,
    100% {
        translate: 0 0;
    }

    50% {
        translate: 0 -10px;
    }
}

.diagram__layer svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.d-grid path {
    fill: none;
    stroke: var(--line);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.d-grid circle {
    fill: var(--line-strong);
}

.d-halo {
    fill: var(--glow);
    opacity: 0.08;
    filter: blur(36px);
}

.d-trace__line {
    fill: none;
    stroke: color-mix(in srgb, var(--glow) 55%, transparent);
    stroke-width: 1.5;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.d-comp {
    fill: var(--bg);
    stroke: var(--glow);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}

.d-hub__shape {
    fill: color-mix(in srgb, var(--graphite) 86%, var(--glow) 14%);
    stroke: var(--glow);
    stroke-width: 1.6;
    filter: drop-shadow(0 0 18px color-mix(in srgb, var(--glow) 60%, transparent));
    vector-effect: non-scaling-stroke;
}

.d-hub__inner {
    fill: none;
    stroke: color-mix(in srgb, var(--glow) 40%, transparent);
    stroke-width: 1;
    stroke-dasharray: 4 6;
    vector-effect: non-scaling-stroke;
    animation: hub-spin 24s linear infinite;
    transform-box: fill-box;
    transform-origin: center;
}

@keyframes hub-spin {
    to {
        transform: rotate(360deg);
    }
}

.diagram__logo {
    position: absolute;
    left: 50%;
    top: 51.7%;
    width: 18%;
    height: auto;
    transform: translate(-50%, -50%) translateZ(10px);
    filter: drop-shadow(0 0 12px color-mix(in srgb, var(--glow) 50%, transparent));
}

/* w jasnym motywie białe logo w środku węzła dostaje ciemne podłoże (węzeł jest ciemny) */
.d-module__box {
    fill: color-mix(in srgb, var(--surface) 80%, var(--glow) 10%);
    stroke: var(--glow);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
    filter: drop-shadow(0 0 14px color-mix(in srgb, var(--glow) 45%, transparent));
}

.d-module__bar {
    fill: color-mix(in srgb, var(--glow) 18%, transparent);
}

.d-module__dot {
    fill: var(--glow);
}

.d-module__glyph {
    fill: none;
    stroke: color-mix(in srgb, var(--text) 70%, transparent);
    stroke-width: 1.5;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.d-module__phone,
.d-module__win {
    fill: color-mix(in srgb, var(--glow) 10%, transparent);
    stroke: var(--glow);
    stroke-width: 1.4;
    vector-effect: non-scaling-stroke;
}

.d-module__label {
    font-family: var(--font);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-anchor: middle;
    fill: var(--text);
}

.d-module__label--ai {
    font-size: 13px;
    letter-spacing: 0.14em;
    dominant-baseline: middle;
    fill: var(--lime-text);
}

.d-module__ring {
    fill: color-mix(in srgb, var(--surface) 70%, transparent);
    stroke: var(--lime-ui);
    stroke-width: 1.3;
    stroke-dasharray: 3 5;
    vector-effect: non-scaling-stroke;
    transform-box: fill-box;
    transform-origin: center;
    animation: hub-spin 18s linear infinite reverse;
    filter: drop-shadow(0 0 10px color-mix(in srgb, var(--lime-ui) 45%, transparent));
}

.d-module__ring--inner {
    stroke-dasharray: none;
    animation: none;
    stroke-width: 1;
}

.hero__scroll {
    position: absolute;
    left: var(--gutter);
    bottom: 22px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: var(--fs-overline);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
}

.hero__scroll span {
    width: 40px;
    height: 1px;
    background: var(--line-strong);
    position: relative;
    overflow: hidden;
}

.hero__scroll span::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: translateX(-100%);
    animation: scroll-hint 2.2s var(--ease-in-out) infinite;
}

@keyframes scroll-hint {
    40% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(100%);
    }
}

@media (max-width: 1023px) {
    .hero {
        padding-top: calc(var(--header-h) + 24px);
        justify-content: flex-start;
    }

    .hero__inner {
        grid-template-columns: 1fr;
    }

    .hero__visual {
        position: absolute;
        top: 8vh;
        right: -8vw;
        width: min(70vw, 520px);
        opacity: 0.42;
        pointer-events: none;
        z-index: 0;
    }

    .hero__content {
        padding-top: 6vh;
    }

    .hero__title {
        font-size: clamp(3rem, 13.2vw, 6.6rem);
    }

    .hero__scroll {
        display: none;
    }
}

@media (max-width: 1023px) and (min-width: 700px) {
    .hero__visual {
        opacity: 0.55;
        width: min(52vw, 520px);
        right: -4vw;
    }
}

/* ==========================================================================
   2) PASEK POJĘĆ
   ========================================================================== */
.marquee {
    position: relative;
    overflow: hidden;
    padding-block: 18px;
    border-block: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface) 55%, transparent);
    mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: marquee 30s linear infinite;
}

.marquee__item {
    padding-inline: clamp(20px, 3vw, 44px);
    font-size: clamp(1rem, 0.8rem + 1.2vw, 1.6rem);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--muted);
}

.marquee__item:nth-child(10n + 9) {
    color: var(--accent);
}

.marquee__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--lime-ui);
    box-shadow: 0 0 10px var(--lime-ui);
}

@keyframes marquee {
    to {
        transform: translateX(-50%);
    }
}

/* ==========================================================================
   3) TRZY ŚRODOWISKA PRACY
   ========================================================================== */
.areas {
    padding-bottom: 0;
}

.areas__pin {
    padding-bottom: var(--section-y);
}

.areas__viewport {
    overflow: hidden;
}

.areas__track {
    display: grid;
    gap: clamp(20px, 3vw, 40px);
}

.area {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: clamp(24px, 3vw, 40px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(160deg, color-mix(in srgb, var(--surface) 92%, transparent), color-mix(in srgb, var(--surface-2) 70%, transparent));
    overflow: hidden;
    transition: border-color 0.4s, transform 0.5s var(--ease-out);
}

.area::before {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 60%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--glow) 22%, transparent), transparent 70%);
    filter: blur(20px);
    opacity: 0.6;
    pointer-events: none;
}

.area:hover {
    border-color: color-mix(in srgb, var(--glow) 50%, transparent);
}

.area__index {
    font-size: var(--fs-overline);
    letter-spacing: 0.26em;
    color: var(--lime-text);
}

.area__visual {
    margin-block: 8px 12px;
    max-width: 320px;
}

.area__visual svg {
    width: 100%;
    overflow: visible;
}

.area__title {
    font-size: var(--fs-h3);
    font-weight: 400;
    letter-spacing: -0.02em;
}

.area__sub {
    margin-top: -6px;
    font-size: 1rem;
    color: var(--accent);
}

.area__text {
    color: var(--muted);
    max-width: 52ch;
}

.area .link-arrow {
    margin-top: auto;
    align-self: flex-start;
    padding-top: 10px;
}

.areas__hint {
    display: none;
    margin-top: 20px;
    font-size: var(--fs-overline);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
}

@media (min-width: 768px) {
    .areas__track {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* tryb poziomy (ustawia JavaScript na desktopie) */
.areas.is-horizontal .areas__track {
    display: flex;
    width: max-content;
    max-width: none;
    gap: clamp(28px, 3vw, 48px);
}

.areas.is-horizontal .area {
    flex: 0 0 auto;
    width: min(620px, 56vw);
    min-height: 460px;
}

.areas.is-horizontal .areas__hint {
    display: block;
}

/* ==========================================================================
   4) WYKONANE PROJEKTY
   ========================================================================== */
.tabs__list {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: clamp(28px, 4vw, 48px);
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: color-mix(in srgb, var(--surface) 70%, transparent);
    width: fit-content;
    max-width: 100%;
}

.no-js .tabs__list {
    display: none;
}

.tab {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    color: var(--muted);
    transition: color 0.3s;
}

.tab:hover {
    color: var(--text);
}

.tab.is-active {
    color: var(--on-accent);
}

.tab__count {
    display: inline-grid;
    place-items: center;
    min-width: 24px;
    height: 24px;
    padding-inline: 6px;
    border-radius: 999px;
    font-size: 0.74rem;
    background: color-mix(in srgb, var(--text) 10%, transparent);
    color: inherit;
    font-variant-numeric: tabular-nums;
}

.tab.is-active .tab__count {
    background: color-mix(in srgb, var(--on-accent) 16%, transparent);
}

.tabs__indicator {
    position: absolute;
    top: 6px;
    left: 0;
    height: calc(100% - 12px);
    width: 0;
    border-radius: 999px;
    background: var(--accent);
    box-shadow: 0 0 24px color-mix(in srgb, var(--glow) 45%, transparent);
    transition: left 0.45s var(--ease-out), width 0.45s var(--ease-out), top 0.45s var(--ease-out), height 0.45s var(--ease-out);
    opacity: 0;
}

.js .tabs__indicator.is-ready {
    opacity: 1;
}

.projects__group {
    position: relative;
}

.projects__group + .projects__group {
    margin-top: clamp(48px, 7vw, 96px);
}

.projects__group-title {
    margin-bottom: 24px;
    font-size: var(--fs-h3);
    font-weight: 400;
    letter-spacing: -0.02em;
}

.js .projects__group:not(.is-active) {
    display: none;
}

.js .projects__group.is-active {
    animation: panel-in 0.5s var(--ease-out);
}

@keyframes panel-in {
    from {
        opacity: 0;
        transform: translateX(16px);
    }
}

.js .projects__group + .projects__group {
    margin-top: 0;
}

.js .projects__group-title {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.projects__empty {
    color: var(--muted);
}

.cards {
    display: grid;
    gap: clamp(18px, 2.4vw, 28px);
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
}

.cards--android {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr));
}

.card {
    --rx: 0deg;
    --ry: 0deg;
    perspective: 1000px;
}

.card__inner {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
    transform: rotateX(var(--rx)) rotateY(var(--ry));
    transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s var(--ease-out);
    transform-style: preserve-3d;
}

.card--portrait .card__inner {
    flex-direction: row;
}

.card__media {
    position: relative;
    aspect-ratio: var(--ratio, 16 / 10);
    overflow: hidden;
    background: var(--surface-2);
    isolation: isolate;
}

.card--portrait .card__media {
    flex: 0 0 40%;
    align-self: stretch;
    aspect-ratio: auto;
}

.card--portrait .card__media::before {
    content: "";
    display: block;
    aspect-ratio: var(--ratio, 9 / 16);
}

.card__backdrop {
    position: absolute;
    inset: -12%;
    width: 124%;
    height: 124%;
    object-fit: cover;
    filter: blur(28px) saturate(1.3);
    opacity: 0.55;
    z-index: 0;
}

.card__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 1;
    transition: transform 0.7s var(--ease-out);
}

.card__placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    background:
        radial-gradient(70% 70% at 70% 30%, color-mix(in srgb, var(--glow) 24%, transparent), transparent 70%),
        linear-gradient(160deg, var(--surface-2), var(--surface));
}

.card__placeholder-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    fill: none;
    stroke: color-mix(in srgb, var(--glow) 50%, transparent);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.card__placeholder-lines circle {
    fill: var(--lime-ui);
    stroke: none;
}

.card__initial {
    position: relative;
    font-size: clamp(3rem, 7vw, 5.5rem);
    line-height: 1;
    letter-spacing: -0.04em;
    color: var(--text);
    text-shadow: 0 0 30px color-mix(in srgb, var(--glow) 60%, transparent);
}

.card__frame {
    position: absolute;
    inset: 0;
    z-index: 2;
    border-radius: inherit;
    padding: 1px;
    background: conic-gradient(from var(--angle), transparent 0 62%, var(--glow) 80%, transparent 100%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask-composite: exclude;
    opacity: 0.55;
    animation: frame-spin 7s linear infinite;
    pointer-events: none;
}

@keyframes frame-spin {
    to {
        --angle: 360deg;
    }
}

.card__body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1 1 auto;
    padding: clamp(18px, 2vw, 26px);
}

.card__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.card__title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.25;
}

.card__desc {
    font-size: 0.98rem;
    color: var(--muted);
}

.card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: auto;
    padding-top: 8px;
}

@media (hover: hover) and (pointer: fine) {
    .card:hover .card__inner {
        border-color: color-mix(in srgb, var(--glow) 60%, transparent);
        box-shadow:
            0 0 0 1px color-mix(in srgb, var(--glow) 20%, transparent),
            0 30px 70px -30px color-mix(in srgb, var(--glow) 55%, transparent),
            0 20px 40px -20px rgba(0, 0, 0, 0.5);
    }

    .card:hover .card__frame {
        opacity: 1;
    }

    .card:hover .card__img {
        transform: scale(1.03);
    }
}

@media (max-width: 560px) {
    .card--portrait .card__inner {
        flex-direction: column;
    }

    .card--portrait .card__media {
        flex: none;
        max-height: 420px;
    }

    .card--portrait .card__media::before {
        aspect-ratio: 9 / 11;
    }
}

/* ==========================================================================
   5) OD PRZEMYSŁU DO IT
   ========================================================================== */
.path {
    background:
        radial-gradient(50% 40% at 85% 30%, color-mix(in srgb, var(--glow) 10%, transparent), transparent 70%),
        var(--bg);
}

.path__grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 6vw, 96px);
    align-items: start;
}

.timeline {
    position: relative;
    display: grid;
    gap: clamp(22px, 3vw, 36px);
    padding-left: 32px;
    border-left: 1px solid var(--line-strong);
}

.timeline__item {
    position: relative;
}

.timeline__item::before {
    content: "";
    position: absolute;
    left: -37px;
    top: 10px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--lime-ui);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--lime-ui) 20%, transparent), 0 0 14px var(--lime-ui);
}

.timeline__label {
    display: block;
    margin-bottom: 6px;
    font-size: var(--fs-overline);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
}

.timeline__title {
    font-size: var(--fs-h3);
    font-weight: 400;
    letter-spacing: -0.02em;
}

.timeline__text {
    margin-top: 8px;
    max-width: 54ch;
    color: var(--muted);
}

.portrait {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

.portrait__scene {
    position: relative;
    width: min(100%, 440px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
}

.portrait__glow {
    position: absolute;
    inset: 12%;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--glow) 55%, transparent), color-mix(in srgb, var(--glow) 12%, transparent) 55%, transparent 72%);
    filter: blur(24px);
    opacity: 0.85;
}

.portrait__orbit {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    fill: none;
    stroke: var(--line-strong);
    stroke-width: 1;
    overflow: visible;
}

.portrait__orbit-inner {
    stroke: color-mix(in srgb, var(--glow) 40%, transparent);
    stroke-dasharray: 2 8;
}

.portrait__orbit-dot {
    fill: var(--lime-ui);
    stroke: none;
    filter: drop-shadow(0 0 8px var(--lime-ui));
    transform-box: view-box;
    transform-origin: 200px 200px;
    animation: hub-spin 40s linear infinite;
}

.portrait__img {
    position: relative;
    width: 86%;
    height: auto;
    border-radius: 50% 50% 46% 46% / 50% 50% 40% 40%;
    mask-image: radial-gradient(ellipse 50% 56% at 50% 46%, #000 70%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 50% 56% at 50% 46%, #000 70%, transparent 100%);
    filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.45));
}

.portrait__caption {
    text-align: center;
    display: grid;
    gap: 2px;
}

.portrait__caption strong {
    font-weight: 700;
    letter-spacing: -0.01em;
}

.portrait__caption span {
    font-size: 0.9rem;
    color: var(--muted);
    letter-spacing: 0.08em;
}

.bigstats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 3vw, 40px);
    margin-top: clamp(56px, 8vw, 110px);
    padding-top: clamp(32px, 4vw, 48px);
    border-top: 1px solid var(--line);
}

.bigstat {
    display: grid;
    gap: 8px;
}

.bigstat__value {
    font-size: clamp(3.4rem, 2rem + 6vw, 8rem);
    line-height: 0.9;
    letter-spacing: -0.05em;
    color: var(--lime-text);
    text-shadow: 0 0 40px color-mix(in srgb, var(--lime-ui) calc(var(--glow-alpha) * 100%), transparent);
    font-variant-numeric: tabular-nums;
}

.bigstat__label {
    max-width: 24ch;
    color: var(--muted);
}

@media (max-width: 1023px) {
    .path__grid {
        grid-template-columns: 1fr;
    }

    .portrait {
        position: static;
        order: -1;
        align-items: flex-start;
    }

    .portrait__scene {
        width: min(100%, 360px);
    }

    .portrait__caption {
        text-align: left;
    }
}

@media (max-width: 640px) {
    .bigstats {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   6) NARZĘDZIA I ŚRODOWISKO PRACY
   ========================================================================== */
.tool-grid {
    display: grid;
    gap: clamp(14px, 2vw, 22px);
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.tool {
    position: relative;
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: clamp(22px, 2.6vw, 32px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
    transition: border-color 0.4s;
}

.tool:hover {
    border-color: color-mix(in srgb, var(--glow) 45%, transparent);
}

.tool--way {
    background: linear-gradient(150deg, color-mix(in srgb, var(--glow) 14%, var(--surface)), var(--surface) 65%);
}

.tool--graphics {
    grid-column: span 3;
}

.tool--cert {
    grid-column: span 3;
    background: linear-gradient(150deg, color-mix(in srgb, var(--lime-ui) 12%, var(--surface)), var(--surface) 65%);
}

.tool__icon {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 6px;
    border: 1px solid color-mix(in srgb, var(--glow) 45%, transparent);
    border-radius: 12px;
    color: var(--accent);
    background: color-mix(in srgb, var(--glow) 8%, transparent);
    box-shadow: 0 0 20px -6px var(--glow);
}

.tool--cert .tool__icon {
    color: var(--lime-text);
    border-color: color-mix(in srgb, var(--lime-ui) 50%, transparent);
    background: color-mix(in srgb, var(--lime-ui) 8%, transparent);
    box-shadow: 0 0 20px -6px var(--lime-ui);
}

.tool__icon svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.tool__title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.tool__text {
    color: var(--muted);
}

.tool__cert-name {
    font-size: var(--fs-h3);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
}

.tool--cert {
    padding: 0;
}

.tool__link {
    display: flex;
    flex-direction: column;
    gap: 10px;
    height: 100%;
    padding: clamp(22px, 2.6vw, 32px);
    border-radius: inherit;
    color: inherit;
}

.tool__link:focus-visible {
    outline-offset: -3px;
}

.tool__cert-thumb {
    display: block;
    margin-top: 8px;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    overflow: hidden;
    background: var(--surface-2);
    box-shadow: 0 16px 40px -20px rgba(0, 0, 0, 0.6);
    transition: transform 0.5s var(--ease-out), border-color 0.3s;
}

.tool__cert-thumb img {
    width: 100%;
    height: auto;
}

.tool__link:hover .tool__cert-thumb {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--lime-ui) 60%, transparent);
}

.tool__cert-cta {
    margin-top: auto;
    align-self: flex-start;
    color: var(--lime-text);
}

.tool__link:hover .tool__cert-cta::before {
    transform: scaleX(1);
}

.tool__link:hover .tool__cert-cta::after {
    transform: translateX(4px);
}

@media (max-width: 1023px) {
    .tool-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tool,
    .tool--way,
    .tool--graphics,
    .tool--cert {
        grid-column: span 1;
    }

    .tool--way {
        grid-column: span 2;
    }
}

@media (max-width: 600px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }

    .tool--way {
        grid-column: span 1;
    }
}

/* ==========================================================================
   7) PANEL ŚRODOWISK
   ========================================================================== */
.panel {
    background:
        radial-gradient(45% 50% at 10% 20%, color-mix(in srgb, var(--glow) 9%, transparent), transparent 70%),
        var(--bg);
}

.env {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(24px, 4vw, 64px);
    min-height: min(78vh, 760px);
    padding: clamp(22px, 3vw, 48px);
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) + 6px);
    background: linear-gradient(160deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-2) 80%, transparent));
    overflow: hidden;
}

.env::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to right, var(--line) 1px, transparent 1px) 0 0 / 80px 100% repeat-x,
        linear-gradient(to bottom, var(--line) 1px, transparent 1px) 0 0 / 100% 80px repeat-y;
    opacity: 0.5;
    mask-image: radial-gradient(70% 70% at 70% 50%, #000, transparent);
    -webkit-mask-image: radial-gradient(70% 70% at 70% 50%, #000, transparent);
    pointer-events: none;
}

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

.env__switches {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.env__switch {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 18px;
    padding: 18px 20px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--muted);
    transition: color 0.3s, background-color 0.3s;
}

.env__switch:hover {
    color: var(--text);
    background: color-mix(in srgb, var(--text) 4%, transparent);
}

.env__num {
    font-size: var(--fs-overline);
    letter-spacing: 0.22em;
    color: var(--lime-text);
}

.env__label {
    font-size: clamp(1.6rem, 1.2rem + 2vw, 3rem);
    line-height: 1;
    letter-spacing: 0.08em;
}

.env__line {
    grid-column: 1 / -1;
    height: 1px;
    margin-top: 10px;
    background: var(--line);
    transform-origin: left;
    transition: background-color 0.3s;
}

#env-web:checked ~ .env__switches [for="env-web"],
#env-android:checked ~ .env__switches [for="env-android"],
#env-windows:checked ~ .env__switches [for="env-windows"] {
    color: var(--text);
}

#env-web:checked ~ .env__switches [for="env-web"] .env__line,
#env-android:checked ~ .env__switches [for="env-android"] .env__line,
#env-windows:checked ~ .env__switches [for="env-windows"] .env__line {
    background: var(--accent);
    box-shadow: 0 0 14px var(--glow);
}

#env-web:focus-visible ~ .env__switches [for="env-web"],
#env-android:focus-visible ~ .env__switches [for="env-android"],
#env-windows:focus-visible ~ .env__switches [for="env-windows"] {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.env__stage {
    position: relative;
    z-index: 1;
    display: grid;
    align-items: center;
}

.env__screen {
    grid-area: 1 / 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(18px, 2vw, 28px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.98);
    transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), visibility 0s linear 0.5s;
}

#env-web:checked ~ .env__stage [data-env-screen="web"],
#env-android:checked ~ .env__stage [data-env-screen="android"],
#env-windows:checked ~ .env__stage [data-env-screen="windows"] {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
}

.env__diagram svg {
    width: 100%;
    max-height: 420px;
    overflow: visible;
}

.env__title {
    font-size: var(--fs-h3);
    font-weight: 400;
    letter-spacing: -0.02em;
}

.env__desc {
    margin-top: 8px;
    max-width: 60ch;
    color: var(--muted);
}

.d-draw {
    stroke-dasharray: 1200;
    stroke-dashoffset: 0;
}

.js .env.is-switching .env__screen.is-entering .d-draw {
    animation: draw 1.1s var(--ease-out) forwards;
}

@keyframes draw {
    from {
        stroke-dashoffset: 1200;
    }

    to {
        stroke-dashoffset: 0;
    }
}

@media (max-width: 900px) {
    .env {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .env__switches {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
    }

    .env__switch {
        flex: 1 1 140px;
        padding: 12px 14px;
    }

    .env__label {
        font-size: clamp(1.1rem, 4vw, 1.6rem);
    }
}

/* ==========================================================================
   8) DLA MAŁEJ FIRMY (sekcja odwrócona)
   ========================================================================== */
.biz {
    background: var(--bg);
    color: var(--text);
}

.biz::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(50% 60% at 90% 10%, color-mix(in srgb, var(--glow) 18%, transparent), transparent 70%),
        linear-gradient(to right, var(--line) 1px, transparent 1px) 0 0 / clamp(80px, 10vw, 160px) 100% repeat-x;
    opacity: 0.6;
    pointer-events: none;
}

.biz .container {
    position: relative;
}

.biz__list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 3vw, 40px);
}

.biz__item {
    position: relative;
    padding: clamp(24px, 3vw, 36px) 0 0;
    border-top: 1px solid var(--line-strong);
}

.biz__item::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 0;
    width: 48px;
    height: 1px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--glow);
}

.biz__num {
    display: block;
    margin-bottom: 14px;
    font-size: var(--fs-overline);
    letter-spacing: 0.26em;
    color: var(--accent);
}

.biz__title {
    font-size: var(--fs-h3);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.biz__text {
    margin-top: 12px;
    color: var(--muted);
}

.biz__cta {
    margin-top: clamp(40px, 6vw, 72px);
}

@media (max-width: 800px) {
    .biz__list {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   9) KONTAKT
   ========================================================================== */
.contact__grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 6vw, 96px);
    align-items: start;
}

.contact__list {
    display: grid;
    gap: 18px;
    margin-top: 8px;
}

.contact__row {
    display: grid;
    gap: 4px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.contact__row dt {
    font-size: var(--fs-overline);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted);
}

.contact__row dd {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    font-size: 1.05rem;
}

.contact__mail {
    font-size: clamp(1.2rem, 1rem + 1.2vw, 1.8rem);
    letter-spacing: -0.01em;
    color: var(--text);
    border-bottom: 1px solid color-mix(in srgb, var(--glow) 50%, transparent);
    transition: color 0.3s, border-color 0.3s;
}

.contact__mail:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.contact__note {
    margin-top: 24px;
    color: var(--muted);
}

.form {
    padding: clamp(22px, 3vw, 40px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.form__fieldset {
    display: grid;
    gap: 20px;
}

.form__hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.field {
    display: grid;
    gap: 8px;
}

.field__label {
    font-size: var(--fs-overline);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
}

.field__input {
    width: 100%;
    min-height: 54px;
    padding: 14px 16px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--bg) 55%, transparent);
    color: var(--text);
    transition: border-color 0.25s, box-shadow 0.25s;
}

.field__input::placeholder {
    color: var(--muted);
}

.field__input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--glow) 18%, transparent);
}

.field__input--area {
    resize: vertical;
    min-height: 160px;
}

.field__hint {
    font-size: 0.86rem;
    color: var(--muted);
}

.field__error {
    display: none;
    font-size: 0.88rem;
    color: #FF8A8A;
}

.invert .field__error,
:root[data-theme="light"] .field__error {
    color: #B42318;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .field__error {
        color: #B42318;
    }
}

.field.has-error .field__error {
    display: block;
}

.field.has-error .field__input {
    border-color: #FF8A8A;
}

.form__privacy {
    font-size: 0.88rem;
    color: var(--muted);
}

.form__privacy a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.form__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.form__status {
    display: none;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

.form__status.is-success {
    display: block;
    color: var(--lime-text);
    border: 1px solid color-mix(in srgb, var(--lime-ui) 50%, transparent);
    background: color-mix(in srgb, var(--lime-ui) 10%, transparent);
}

.form__status.is-error {
    display: block;
    color: #FF8A8A;
    border: 1px solid rgba(255, 138, 138, 0.5);
    background: rgba(255, 138, 138, 0.08);
}

:root[data-theme="light"] .form__status.is-error {
    color: #B42318;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .form__status.is-error {
        color: #B42318;
    }
}

.btn.is-busy {
    opacity: 0.7;
    pointer-events: none;
}

@media (max-width: 1023px) {
    .contact__grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   10) STOPKA
   ========================================================================== */
.footer {
    position: relative;
    padding-top: clamp(56px, 8vw, 110px);
    padding-bottom: 32px;
    border-top: 1px solid var(--line);
    overflow: hidden;
    background:
        radial-gradient(60% 50% at 50% 110%, color-mix(in srgb, var(--glow) 18%, transparent), transparent 70%),
        var(--bg);
}

.footer__top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px 32px;
    margin-bottom: clamp(24px, 4vw, 48px);
    color: var(--muted);
}

.footer__logo {
    display: block;
    width: 100%;
    margin-inline: auto;
    padding-block: clamp(8px, 2vw, 24px);
}

.footer__logo-img {
    display: none;
    width: 100%;
    height: auto;
}

.footer__logo .logo__img--on-dark {
    display: var(--logo-light);
}

.footer__logo .logo__img--on-light {
    display: var(--logo-dark);
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px 28px;
    margin-top: clamp(20px, 3vw, 36px);
    padding-top: 20px;
    border-top: 1px solid var(--line);
    font-size: 0.9rem;
    color: var(--muted);
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 24px;
}

.footer__links a {
    transition: color 0.25s;
}

.footer__links a:hover {
    color: var(--accent);
}

.lang-switch--footer .lang-switch__link {
    padding: 2px 2px;
}

/* ==========================================================================
   PODSTRONY: polityka prywatności, 404
   ========================================================================== */
.page {
    padding-top: var(--header-h);
}

.legal__inner {
    max-width: 820px;
}

.legal .link-arrow--back {
    margin-bottom: 32px;
}

.legal__title {
    margin-bottom: 32px;
}

.legal__body h2 {
    margin-top: 40px;
    margin-bottom: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.legal__body p,
.legal__body li {
    color: var(--muted);
}

.legal__body p + p {
    margin-top: 12px;
}

.legal__body ul,
.legal__body ol {
    margin: 12px 0 0 0;
    padding-left: 22px;
    display: grid;
    gap: 6px;
}

.legal__body ul {
    list-style: disc;
}

.legal__body ol {
    list-style: decimal;
}

.legal__body a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.legal__body code {
    padding: 1px 6px;
    border-radius: 6px;
    background: color-mix(in srgb, var(--text) 8%, transparent);
    font-size: 0.92em;
}

.legal__lead {
    font-size: var(--fs-lead);
    color: var(--text) !important;
}

.legal__updated {
    margin-top: 40px;
    font-size: 0.88rem;
}

.notfound {
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.notfound__inner {
    max-width: 720px;
}

.notfound .hero__cta {
    margin-top: 32px;
}

/* ==========================================================================
   PODSTRONY DOKUMENTÓW: /cv, /certyfikat
   ========================================================================== */
.docpage__head {
    margin-bottom: clamp(28px, 4vw, 48px);
}

.docpage .link-arrow--back {
    margin-bottom: 32px;
}

.docpage__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 18px;
    margin-top: clamp(22px, 3vw, 32px);
}

.docpage__actions--bottom {
    margin-top: clamp(28px, 4vw, 48px);
}

.docpage__meta {
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.docpage__missing {
    margin-top: 20px;
    padding: 14px 16px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-sm);
    color: var(--muted);
}

.doc {
    display: grid;
    gap: clamp(20px, 3vw, 40px);
    justify-items: center;
}

.doc__page {
    position: relative;
    width: 100%;
    max-width: 960px;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    overflow: hidden;
    background: #fff;
    box-shadow:
        0 0 0 1px color-mix(in srgb, var(--glow) 12%, transparent),
        0 40px 90px -40px rgba(0, 0, 0, 0.7),
        0 0 80px -30px color-mix(in srgb, var(--glow) 30%, transparent);
}

.doc--landscape .doc__page {
    max-width: 1200px;
}

.doc__page img {
    width: 100%;
    height: auto;
}

.doc--embed object {
    width: 100%;
    max-width: 960px;
    height: 80vh;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
}

/* ==========================================================================
   ŚWIATŁO KURSORA, REVEAL, RUCH OGRANICZONY
   ========================================================================== */
.cursor-glow {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 0;
    width: 560px;
    height: 560px;
    margin: -280px 0 0 -280px;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--glow) 14%, transparent), transparent 62%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s;
    will-change: transform;
}

.js .cursor-glow.is-visible {
    opacity: 1;
}

@media (hover: none), (pointer: coarse) {
    .cursor-glow {
        display: none;
    }
}

/* sekcje przewijane poziomo: pozycja pinu */
.areas.is-horizontal .areas__pin {
    will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001s !important;
    }

    .marquee__track {
        animation: none;
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .cursor-glow,
    .hero__canvas {
        display: none;
    }
}

@media print {
    .site-header,
    .cursor-glow,
    .hero__canvas,
    .marquee,
    .hero__scroll,
    body::after {
        display: none !important;
    }

    .js .projects__group:not(.is-active) {
        display: block;
    }
}