/* ==========================================================================
   WebPark Systems – reset, základná typografia a rozloženie stránky
   ========================================================================== */

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-padding-top: calc(var(--header-height) + var(--space-s));
    interpolate-size: allow-keywords;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    min-height: 100dvh;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--step-0);
    line-height: var(--leading-normal);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
    transition: background-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}

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

svg {
    flex-shrink: 0;
}

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

button {
    cursor: pointer;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    text-wrap: balance;
    font-weight: 700;
}

p,
li,
dd {
    text-wrap: pretty;
}

a {
    color: var(--color-accent);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
    text-decoration-thickness: 0.14em;
}

:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
    border-radius: var(--radius-s);
}

::selection {
    background: oklch(0.6 0.22 285 / 0.28);
}

code,
pre {
    font-family: var(--font-mono);
    font-size: 0.92em;
}

address {
    font-style: normal;
}

main:focus {
    outline: none;
}

[hidden] {
    display: none !important;
}

/* --- Pomocné triedy ---------------------------------------------------- */
.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.container {
    width: min(100% - 2 * var(--container-gutter), var(--container-max));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    top: var(--space-s);
    left: var(--space-s);
    z-index: calc(var(--z-modal) + 1);
    padding: var(--space-xs) var(--space-m);
    border-radius: var(--radius-pill);
    background: var(--color-text);
    color: var(--color-bg);
    font-weight: 600;
    text-decoration: none;
    translate: 0 -200%;
    transition: translate var(--duration-base) var(--ease-out);
}

.skip-link:focus,
.skip-link:focus-visible {
    translate: 0 0;
}

/* --- Hlavička ------------------------------------------------------------ */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    transition: background-color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled,
.site-header.is-menu-open {
    background-color: var(--color-surface);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-s);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-m);
}

.brand {
    display: inline-flex;
    min-width: 0;
    color: var(--color-text);
    border-radius: var(--radius-m);
}

.brand svg {
    width: 14.5rem;
    max-width: 100%;
    height: auto;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-m);
    margin-inline-start: auto;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(0.25rem, 1vw, 1rem);
    padding: 0;
    list-style: none;
}

.site-nav__link {
    position: relative;
    display: inline-block;
    padding: var(--space-2xs) var(--space-xs);
    border-radius: var(--radius-pill);
    color: var(--color-text-muted);
    font-size: var(--step--1);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
}

.site-nav__link:hover,
.site-nav__link[aria-current="true"] {
    color: var(--color-text);
    background-color: var(--color-accent-soft);
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2xs);
}

.site-nav__cta {
    white-space: nowrap;
}

.nav-toggle {
    display: none;
}

/* Bez JavaScriptu by tlačidlá témy a menu nič nerobili – skryjeme ich (navigácia je vtedy v toku stránky). */
html:not(.js) .theme-toggle,
html:not(.js) .nav-toggle {
    display: none !important;
}

@media (max-width: 79rem) {
    .site-header__inner {
        justify-content: space-between;
    }

    .site-header__actions {
        margin-inline-start: auto;
    }

    .nav-toggle {
        display: inline-grid;
        place-content: center;
        gap: 5px;
        width: 2.75rem;
        height: 2.75rem;
        padding: 0;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-m);
        background: var(--color-surface);
    }

    .nav-toggle__bar {
        display: block;
        width: 1.25rem;
        height: 2px;
        border-radius: 2px;
        background: currentColor;
        transition: translate var(--duration-base) var(--ease-out), rotate var(--duration-base) var(--ease-out), opacity var(--duration-fast);
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
        translate: 0 7px;
        rotate: 45deg;
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
        opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(4) {
        translate: 0 -7px;
        rotate: -45deg;
    }

    /* Bez JS je menu viditeľné v toku stránky; s JS (html.js) sa správa ako vysúvací panel. */
    .site-nav {
        order: 3;
        flex-basis: 100%;
        flex-direction: column;
        align-items: stretch;
        margin: 0;
        padding-block: var(--space-s);
    }

    .js .site-nav {
        position: fixed;
        inset: var(--header-height) 0 auto 0;
        max-height: calc(100dvh - var(--header-height));
        overflow-y: auto;
        padding: var(--space-m) var(--container-gutter) var(--space-l);
        background: var(--color-bg-elevated);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-l);
        opacity: 0;
        visibility: hidden;
        translate: 0 -0.75rem;
        transition: opacity var(--duration-base) var(--ease-out), translate var(--duration-base) var(--ease-out), visibility 0s linear var(--duration-base);
    }

    .js .site-nav.is-open {
        opacity: 1;
        visibility: visible;
        translate: 0 0;
        transition-delay: 0s;
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
    }

    .site-nav__link {
        display: block;
        padding: var(--space-xs) var(--space-s);
        font-size: var(--step-1);
    }

    .site-nav__cta {
        margin-top: var(--space-s);
    }

    .site-header .site-header__inner {
        flex-wrap: wrap;
    }
}

@media (max-width: 79rem) {
    .js .site-header .site-header__inner {
        flex-wrap: nowrap;
    }
}

/* --- Sekcie -------------------------------------------------------------- */
.section {
    position: relative;
    padding-block: var(--space-section);
}

.section__header {
    max-width: 48rem;
    margin-bottom: var(--space-xl);
}

.section__header--center {
    margin-inline: auto;
    text-align: center;
}

.section__title {
    font-size: var(--step-4);
    margin-block: var(--space-xs) var(--space-m);
}

.section__lead {
    color: var(--color-text-muted);
    font-size: var(--step-1);
    line-height: var(--leading-normal);
}

/* --- Hero ---------------------------------------------------------------- */
.hero {
    position: relative;
    isolation: isolate;
    padding-block: clamp(3rem, 2rem + 6vw, 7rem) var(--space-section);
    overflow: clip;
}

.hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: var(--space-2xl);
}

@media (max-width: 64rem) {
    .hero__inner {
        grid-template-columns: 1fr;
    }
}

.hero__title {
    font-size: clamp(2.4rem, 1.5rem + 3.2vw, 4.1rem);
    margin-block: var(--space-m);
}

.hero__title-line {
    display: block;
}

.hero__lead {
    max-width: 38rem;
    color: var(--color-text-muted);
    font-size: var(--step-1);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-s);
    margin-block: var(--space-l);
}

.hero__proof {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: var(--space-2xs) var(--space-m);
    padding: 0;
    list-style: none;
    color: var(--color-text-muted);
    font-size: var(--step--1);
    font-weight: 500;
}

.hero__proof li {
    display: flex;
    align-items: center;
    gap: var(--space-2xs);
}

.hero__proof-icon {
    width: 1.15rem;
    height: 1.15rem;
    color: var(--color-success);
}

/* --- Bento grid ---------------------------------------------------------- */
.bento {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-flow: dense;
    gap: var(--space-m);
}

.bento__card--wide {
    grid-column: span 2;
}

.bento__card--tall {
    grid-row: span 2;
}

@media (max-width: 60rem) {
    .bento {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 40rem) {
    .bento {
        grid-template-columns: 1fr;
    }

    .bento__card--wide,
    .bento__card--tall {
        grid-column: auto;
        grid-row: auto;
    }
}

/* --- Kalkulačka --------------------------------------------------------- */
.roi__layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
    align-items: start;
    gap: var(--space-l);
}

.roi__results {
    position: sticky;
    top: calc(var(--header-height) + var(--space-m));
}

@media (max-width: 60rem) {
    .roi__layout {
        grid-template-columns: 1fr;
    }

    .roi__results {
        position: static;
    }
}

/* --- Katalóg ------------------------------------------------------------- */
.catalog__group + .catalog__group {
    margin-top: var(--space-2xl);
}

.catalog__group-title {
    font-size: var(--step-2);
    margin-bottom: var(--space-l);
}

.journey,
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 21rem), 1fr));
    gap: var(--space-m);
    padding: 0;
    list-style: none;
}

.journey__step,
.service-grid > li {
    display: flex;
}

.catalog__split {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: var(--space-m);
    margin-top: var(--space-2xl);
}

.platforms {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-m);
    margin-bottom: var(--space-2xl);
}

.platforms__hint {
    grid-column: 1 / -1;
    color: var(--color-text-muted);
    text-align: center;
}

@media (max-width: 52rem) {
    .catalog__split,
    .platforms {
        grid-template-columns: 1fr;
    }
}

/* --- Use-cases ----------------------------------------------------------- */
.use-cases__list {
    display: grid;
    gap: var(--space-l);
}

/* --- FAQ ----------------------------------------------------------------- */
.faq__layout {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--space-2xl);
    align-items: start;
}

.faq__header {
    position: sticky;
    top: calc(var(--header-height) + var(--space-l));
}

@media (max-width: 56rem) {
    .faq__layout {
        grid-template-columns: 1fr;
        gap: var(--space-l);
    }

    .faq__header {
        position: static;
        margin-bottom: 0;
    }
}

/* --- Kontakt ------------------------------------------------------------- */
.contact__layout {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: var(--space-2xl);
    align-items: start;
}

.contact__aside {
    position: sticky;
    top: calc(var(--header-height) + var(--space-l));
}

.contact__aside .section__title {
    font-size: var(--step-3);
}

@media (max-width: 60rem) {
    .contact__layout {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--space-xl);
    }

    .contact__aside {
        position: static;
    }
}

/* --- Pätička ------------------------------------------------------------- */
.site-footer {
    position: relative;
    margin-top: var(--space-section);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-sunken);
    font-size: var(--step--1);
}

.site-footer__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
    gap: var(--space-xl);
}

.site-footer__brand .brand svg {
    width: 16rem;
}

.site-footer__claim {
    margin-block: var(--space-m);
    max-width: 28rem;
    color: var(--color-text-muted);
}

.site-footer__title {
    margin-bottom: var(--space-s);
    font-size: var(--step-0);
}

.site-footer__nav ul,
.site-footer__legal {
    display: grid;
    gap: var(--space-2xs);
    padding: 0;
    list-style: none;
}

.site-footer a:not(.button) {
    color: var(--color-text-muted);
    text-decoration: none;
}

.site-footer a:not(.button):hover {
    color: var(--color-text);
    text-decoration: underline;
}

.company-details {
    display: grid;
    gap: var(--space-2xs);
}

.company-details dt {
    color: var(--color-text-subtle);
    font-size: 0.85em;
}

.company-details dd {
    margin: 0;
    color: var(--color-text-muted);
}

.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-s);
    margin-top: var(--space-2xl);
    padding-block: var(--space-l);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-subtle);
}

.site-footer__legal {
    display: flex;
    gap: var(--space-m);
}

@media (max-width: 60rem) {
    .site-footer__inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer__brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 36rem) {
    .site-footer__inner {
        grid-template-columns: 1fr;
    }
}

/* --- Právna stránka ------------------------------------------------------ */
.legal {
    max-width: 52rem;
    padding-block: var(--space-2xl) 0;
}

.legal__title {
    font-size: var(--step-4);
    margin-block: var(--space-xs) var(--space-m);
}

.legal__lead {
    color: var(--color-text-muted);
    font-size: var(--step-1);
}

.legal__meta {
    margin-top: var(--space-s);
    color: var(--color-text-subtle);
    font-size: var(--step--1);
}

.legal__toc {
    margin-block: var(--space-xl);
    padding: var(--space-m) var(--space-l);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-l);
    background: var(--color-surface);
}

.legal__toc-title {
    font-size: var(--step-1);
    margin-bottom: var(--space-xs);
}

.legal__toc ol {
    columns: 2 14rem;
    padding-inline-start: 1.25rem;
}

.legal__section {
    padding-block: var(--space-l);
    border-top: 1px solid var(--color-border);
}

.legal__section h2 {
    font-size: var(--step-2);
    margin-bottom: var(--space-s);
}

.legal__section p + p,
.legal__section p + ul,
.legal__section ul + p,
.legal__section .table-scroll + p {
    margin-top: var(--space-s);
}

.legal__section ul {
    display: grid;
    gap: var(--space-2xs);
    margin-block: var(--space-s);
    padding-inline-start: 1.25rem;
}

.legal__address {
    margin-block: var(--space-s);
    padding: var(--space-m);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-m) var(--radius-m) 0;
    background: var(--color-accent-soft);
}

.legal__back {
    margin-block: var(--space-xl) 0;
}

/* --- Chybová stránka ----------------------------------------------------- */
.error-page {
    display: grid;
    justify-items: center;
    gap: var(--space-m);
    min-height: 60dvh;
    align-content: center;
    padding-block: var(--space-2xl);
    text-align: center;
}

.error-page__code {
    font-family: var(--font-display);
    font-size: clamp(5rem, 3rem + 10vw, 10rem);
    font-weight: 700;
    line-height: 1;
    background: var(--brand-gradient-wide);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.error-page__title {
    font-size: var(--step-4);
}

.error-page__lead {
    max-width: 36rem;
    color: var(--color-text-muted);
    font-size: var(--step-1);
}

.error-page__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-s);
}

/* --- Tlač ---------------------------------------------------------------- */
@media print {
    .site-header,
    .hero__backdrop,
    .skip-link,
    .lead-form,
    .roi__form,
    dialog {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }
}