/* OmniSys — tmavá základna + elektrická modř jako na logu */
:root {
    --bg: #05070d;
    --bg-elevated: #0c101a;
    --bg-muted: #080b12;
    --border: rgba(255, 255, 255, 0.09);
    --text: #e8eaef;
    --text-muted: #94a3b8;
    --accent: #2ea3ff;
    --accent-bright: #7cc4ff;
    --accent-dim: rgba(46, 163, 255, 0.16);
    --accent-2: #60a5fa;
    --grid-line: rgba(46, 163, 255, 0.055);
    --radius: 14px;
    --radius-sm: 10px;
    --font: "DM Sans", system-ui, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, monospace;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
    --max: 1120px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
        radial-gradient(ellipse 120% 80% at 50% -25%, rgba(46, 163, 255, 0.12), transparent 55%),
        radial-gradient(ellipse 70% 50% at 100% 0%, rgba(96, 165, 250, 0.06), transparent 50%);
    background-size:
        48px 48px,
        48px 48px,
        100% 100%,
        100% 100%;
    background-attachment: fixed;
}

img {
    max-width: 100%;
    height: auto;
}

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

.skip-link {
    position: absolute;
    left: 1rem;
    top: -100px;
    z-index: 1000;
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: #0c1929;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
}

.skip-link:focus {
    top: 1rem;
}

.wrap {
    width: min(100% - 2rem, var(--max));
    margin-inline: auto;
}

@media (min-width: 480px) {
    .wrap {
        width: min(100% - 2.5rem, var(--max));
    }
}

.mono {
    font-family: var(--mono);
    font-size: 0.85em;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
    background: rgba(5, 7, 13, 0.9);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-height: 4rem;
    position: relative;
}

.site-header__tools {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex: 1;
    justify-content: flex-end;
    min-width: 0;
}

.lang-switch {
    display: inline-flex;
    padding: 3px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
    flex-shrink: 0;
}

.lang-switch__opt {
    padding: 0.35rem 0.65rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 999px;
    transition: color 0.15s, background 0.15s;
}

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

.lang-switch__opt.is-active {
    color: #031018;
    background: linear-gradient(135deg, var(--accent), #0284c7);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text);
    text-decoration: none;
    flex-shrink: 0;
}

.logo__img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 10px;
}

.logo__img--footer {
    width: 36px;
    height: 36px;
    vertical-align: middle;
    margin-right: 0.35rem;
}

.logo--footer {
    display: inline-flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
}

.site-nav__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 1.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-nav__link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.35rem 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}

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

.site-nav__link.is-active {
    border-bottom-color: var(--accent);
}

.site-nav__link--cta {
    color: var(--accent);
}

.site-nav__link--cta:hover,
.site-nav__link--cta.is-active {
    color: var(--accent-bright);
}

.site-nav__link--external {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.ext-ico {
    display: inline-block;
    width: 0.55em;
    height: 0.55em;
    margin-left: 0.15em;
    vertical-align: 0.05em;
    border: 1.5px solid currentColor;
    border-left: 0;
    border-bottom: 0;
    transform: translate(0, -0.05em) rotate(45deg);
    opacity: 0.75;
}

.addr-block {
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: inherit;
}

.addr-block .addr-line {
    display: block;
}

.addr-block .addr-line:not(:last-child) {
    margin-bottom: 0.2rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    cursor: pointer;
}

.nav-toggle__bar {
    display: block;
    width: 1.25rem;
    height: 2px;
    margin-inline: auto;
    background: var(--text);
    border-radius: 1px;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .site-header__tools {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 1.25rem;
        padding: 1rem min(1.25rem, 5vw) 1.5rem;
        background: rgba(5, 7, 13, 0.98);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(14px);
    }

    .site-header.nav-is-open .site-header__tools {
        display: flex;
    }

    .lang-switch {
        align-self: flex-start;
    }

    .site-nav {
        display: block;
        width: 100%;
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .site-nav__link {
        display: flex;
        align-items: center;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border);
    }

    .site-nav__link.is-active {
        border-bottom-color: var(--border);
        border-left: 3px solid var(--accent);
        padding-left: 0.75rem;
    }
}

/* Hero */
.hero {
    position: relative;
    padding: clamp(3.5rem, 10vw, 6rem) 0 clamp(4rem, 12vw, 7rem);
    overflow: hidden;
}

.hero__inner {
    position: relative;
    z-index: 1;
}

.hero__glow {
    position: absolute;
    inset: 10% 20% auto;
    height: min(50vh, 420px);
    background: radial-gradient(closest-side, rgba(46, 163, 255, 0.16), transparent 70%);
    pointer-events: none;
}

.eyebrow {
    margin: 0 0 1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero__title {
    margin: 0 0 0.65rem;
    font-size: clamp(2rem, 5vw, 3.1rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.02em;
    max-width: 22ch;
}

.hero__tagline {
    margin: 0 0 1.35rem;
    font-size: clamp(1.05rem, 2.4vw, 1.35rem);
    font-weight: 600;
    line-height: 1.35;
    max-width: 36ch;
}

.text-gradient {
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__lead {
    margin: 0 0 2rem;
    max-width: 42ch;
    color: var(--text-muted);
    font-size: 1.125rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.35rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.1s;
}

.btn:active {
    transform: scale(0.98);
}

.btn--primary {
    background: linear-gradient(135deg, #2ea3ff, #0284c7);
    color: #031018;
    box-shadow: 0 8px 36px rgba(46, 163, 255, 0.3);
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    margin-top: auto;
    align-self: flex-start;
}

.btn--primary:hover {
    filter: brightness(1.06);
}

.btn--ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn--ghost:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.04);
}

.btn--block {
    width: 100%;
    text-align: center;
}

/* Sections */
.section {
    padding: clamp(3rem, 8vw, 5rem) 0;
}

.section--muted {
    background: var(--bg-muted);
    border-block: 1px solid var(--border);
}

.section__title {
    margin: 0 0 0.75rem;
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
}

.section__intro {
    margin: 0 0 2.5rem;
    color: var(--text-muted);
    max-width: 50ch;
}

.page-head {
    padding: clamp(2.5rem, 6vw, 4rem) 0 1rem;
}

.page-head__title {
    margin: 0 0 1rem;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    letter-spacing: -0.02em;
}

.page-head__lead {
    margin: 0;
    max-width: 55ch;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.card {
    padding: 1.5rem 1.5rem 1.35rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card--accent {
    border-color: rgba(46, 163, 255, 0.42);
    background: linear-gradient(160deg, rgba(46, 163, 255, 0.11), var(--bg-elevated));
}

.card--service {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-height: 11rem;
}

.card--service .card__text {
    flex: 1;
    margin-bottom: 0.75rem;
}

.card__title--service {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    font-weight: 700;
}

.card-grid--services {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
}

.card__title {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
}

.card__text {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.98rem;
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent);
    text-decoration: none;
}

.card__link:hover {
    text-decoration: underline;
}

/* Split & panels */
.split {
    display: grid;
    gap: 2.5rem;
    align-items: start;
}

@media (min-width: 860px) {
    .split {
        grid-template-columns: 1fr 1fr;
        gap: 3.5rem;
    }
}

.checklist {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
}

.checklist li {
    margin-bottom: 0.65rem;
}

.checklist li::marker {
    color: var(--accent);
}

.panel {
    padding: 1.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.panel--legal {
    border-color: rgba(129, 140, 248, 0.2);
}

.panel--contact {
    border-color: rgba(46, 163, 255, 0.3);
}

.page-head__hint {
    margin: 0.75rem 0 0;
    max-width: 52ch;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.of-tagline {
    margin: 0 0 1rem;
    font-size: clamp(1.2rem, 2.5vw, 1.45rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    background: linear-gradient(115deg, var(--accent-bright), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Dialog (služby) */
.site-dialog {
    width: min(calc(100vw - 2rem), 34rem);
    max-height: min(85vh, 36rem);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    color: var(--text);
    box-shadow: var(--shadow), 0 0 0 1px rgba(46, 163, 255, 0.08);
}

.site-dialog::backdrop {
    background: rgba(2, 4, 10, 0.72);
    backdrop-filter: blur(6px);
}

.site-dialog__panel {
    position: relative;
    padding: 1.5rem 1.5rem 1.35rem;
    max-height: min(85vh, 36rem);
    overflow-y: auto;
}

.site-dialog__title {
    margin: 0 2.25rem 1rem 0;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    padding-right: 0.5rem;
}

.site-dialog__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.35);
    color: var(--text-muted);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.site-dialog__close:hover {
    color: var(--text);
    border-color: rgba(46, 163, 255, 0.35);
    background: var(--accent-dim);
}

.site-dialog__body {
    font-size: 0.98rem;
    color: var(--text-muted);
}

.site-dialog__p {
    margin: 0 0 1rem;
}

.site-dialog__p:last-child {
    margin-bottom: 0;
}

.site-dialog__list {
    margin: 0 0 1rem;
    padding-left: 1.2rem;
    color: var(--text-muted);
}

.site-dialog__list:last-child {
    margin-bottom: 0;
}

.site-dialog__list li {
    margin-bottom: 0.4rem;
}

.site-dialog__list li::marker {
    color: var(--accent);
}

.panel__actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: 1rem;
}

.panel__actions .btn {
    width: 100%;
}

.panel__kicker {
    margin: 0 0 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.panel__text {
    margin: 0 0 0.75rem;
    color: var(--text-muted);
}

.panel__text:last-child {
    margin-bottom: 0;
}

.panel__text--large {
    font-size: 1.25rem;
}

.panel__text strong {
    color: var(--text);
}

.contact-mail {
    color: var(--accent);
    text-decoration: none;
    word-break: break-all;
}

.contact-mail:hover {
    text-decoration: underline;
}

.prose {
    margin: 0 0 1rem;
    color: var(--text-muted);
}

.prose:last-child {
    margin-bottom: 0;
}

/* Services */
.service-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.service-block {
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--border);
}

.service-block:last-child {
    border-bottom: 0;
}

.service-block__title {
    margin: 0 0 0.5rem;
    font-size: 1.35rem;
}

.service-block__text {
    margin: 0;
    color: var(--text-muted);
    max-width: 65ch;
}

.section--cta {
    padding-bottom: clamp(4rem, 10vw, 6rem);
}

.cta-band {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 2rem 1.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.cta-band__title {
    margin: 0 0 0.35rem;
    font-size: 1.25rem;
}

.cta-band__text {
    margin: 0;
    color: var(--text-muted);
}

/* Footer */
.site-footer {
    margin-top: auto;
    padding: 3rem 0 0;
    border-top: 1px solid var(--border);
    background: var(--bg-muted);
}

.site-footer__grid {
    display: grid;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
}

@media (min-width: 720px) {
    .site-footer__grid {
        grid-template-columns: 1.2fr 1fr 1fr;
    }
}

.site-footer__tagline {
    margin: 0.5rem 0 0;
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 28ch;
}

.site-footer__heading {
    margin: 0 0 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.site-footer__text {
    margin: 0 0 0.4rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-link {
    color: var(--accent);
    text-decoration: none;
}

.footer-link:hover {
    text-decoration: underline;
}

.site-footer__bottom {
    padding: 1.25rem 0;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
}

.site-footer__bottom p {
    margin: 0;
}

/* Blog */
.blog-hub {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1.35rem;
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .blog-hub {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .blog-hub {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.blog-card--hub {
    margin: 0;
    padding: 0;
    list-style: none;
}

.blog-card__inner {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 1.35rem 1.35rem 1.25rem;
    background: linear-gradient(145deg, var(--bg-elevated), rgba(12, 16, 26, 0.92));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
    border-left: 3px solid var(--accent);
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}

.blog-card--hub:hover .blog-card__inner {
    border-left-color: var(--accent-bright);
    box-shadow: 0 22px 56px rgba(0, 0, 0, 0.34);
    transform: translateY(-2px);
}

.blog-card__title {
    margin: 0 0 0.6rem;
    font-size: 1.12rem;
    line-height: 1.32;
    font-weight: 700;
    color: var(--text);
}

.blog-card__excerpt {
    margin: 0 0 1.15rem;
    flex: 1 1 auto;
    color: var(--text-muted);
    font-size: 0.94rem;
    line-height: 1.55;
}

.blog-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.65rem;
    margin-top: auto;
}

.blog-card__actions--single .btn {
    width: 100%;
    justify-content: center;
}

/* Blog přehled: výraznější světle modrý CTA na tmavém podkladu */
.blog-card--hub .blog-card__actions--single .btn--primary {
    background: transparent;
    border: 1px solid rgba(167, 216, 255, 0.55);
    color: #b8e2ff;
    box-shadow: 0 0 24px rgba(124, 196, 255, 0.18);
}

.blog-card--hub .blog-card__actions--single .btn--primary:hover {
    background: rgba(124, 196, 255, 0.14);
    border-color: #c8ebff;
    color: #e8f6ff;
    box-shadow: 0 0 32px rgba(124, 196, 255, 0.28);
}

.page-head--blog .blog-back-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: normal;
    text-transform: none;
    font-size: 0.9rem;
}

.page-head--blog .blog-back-link:hover {
    text-decoration: underline;
}

.blog-byline {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.blog-article {
    padding-bottom: clamp(3rem, 8vw, 5rem);
}

.blog-figure {
    margin: 0 0 2rem;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    max-width: 48rem;
}

.blog-figure__img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.blog-article__body {
    max-width: 48rem;
    color: var(--text-muted);
    font-size: 1.02rem;
}

.blog-article__body .blog-p {
    margin: 0 0 1.1rem;
}

.blog-article__body .blog-inline-h2 {
    margin: 2rem 0 0.75rem;
    font-size: 1.2rem;
    color: var(--text);
}

.blog-article__body ul.blog-list-inline {
    margin: 0 0 1.1rem;
    padding-left: 1.2rem;
    color: var(--text-muted);
}

.blog-article__body ul.blog-list-inline li {
    margin-bottom: 0.35rem;
}

.blog-article__body ul.blog-list-inline li::marker {
    color: var(--accent);
}

.blog-article__footer-nav {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}