/* Lokálně hostovaná písma (latin + latin-ext) - bez volání na Google */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-400-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-500-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-600-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-600-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 700;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-700-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 700;
  font-stretch: 100%;
  font-display: swap;
  src: url(fonts/archivo-700-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-400-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-500-latinext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* cybbrio.cz — základní styl
   Barvy vycházejí z loga: petrolejová modř na tmavém podkladu. */

:root {
  --bg: #08151b;
  --bg-alt: #0a1a21;
  --panel: #0b1c24;
  --line: #1b2f38;
  --fg: #e9f0f2;
  --fg-muted: #a9c0c8;
  --fg-dim: #6d8892;
  --accent: #4fb3d9;
  --accent-ink: #06131a;
  --maxw: 1280px;
  --pad-x: clamp(20px, 4.4vw, 56px);
  --section-y: clamp(56px, 7vw, 88px);
  --font: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; line-height: 1.1; text-wrap: balance; }
h1 { font-size: clamp(34px, 5vw, 64px); line-height: 1.03; letter-spacing: -0.035em; }
h2 { font-size: clamp(26px, 3.2vw, 36px); }
h3 { font-size: clamp(19px, 1.8vw, 23px); letter-spacing: -0.015em; }
p { margin: 0; text-wrap: pretty; }

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { color: #7fcbe8; text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

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

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 50;
  background: var(--accent); color: var(--accent-ink); padding: 12px 18px; font-weight: 600;
}
.skip-link:focus { left: 0; }

.shell { max-width: var(--maxw); margin: 0 auto; border-inline: 1px solid var(--line); }
.section { padding: var(--section-y) var(--pad-x); border-bottom: 1px solid var(--line); }
.section--alt { background: var(--bg-alt); }
.section--panel { background: var(--panel); }

.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin: 0;
}
.lead { font-size: clamp(17px, 1.4vw, 19px); line-height: 1.6; color: var(--fg-muted); max-width: 56ch; }
.muted { color: var(--fg-muted); }
.dim { color: var(--fg-dim); }
.mono { font-family: var(--mono); }
.note { font-family: var(--mono); font-size: 13px; color: var(--fg-dim); }

/* --- hlavička --- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(8, 21, 27, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 16px var(--pad-x);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand__word { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; color: var(--accent); }
.brand__corner { display: inline-block; width: 15px; height: 15px; }
.brand__corner--tl { border-left: 3px solid var(--accent); border-top: 3px solid var(--accent); }
.brand__corner--br { border-right: 3px solid var(--accent); border-bottom: 3px solid var(--accent); }
.lang { display: flex; gap: 1px; background: var(--line); padding: 1px; font-family: var(--mono); font-size: 12px; }
.lang__on { background: var(--accent); color: var(--accent-ink); padding: 5px 9px; }
.lang__off { background: var(--bg); color: var(--fg-dim); padding: 5px 9px; }
.lang__off:hover { color: var(--fg); text-decoration: none; }
.site-nav ul { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); list-style: none; margin: 0; padding: 0; }
.site-nav a { color: var(--fg-muted); font-size: 15px; }
.site-nav a:hover { color: var(--fg); text-decoration: none; }

/* --- hero --- */
.hero { position: relative; display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(32px, 5vw, 64px); padding: clamp(60px, 8vw, 96px) var(--pad-x) clamp(56px, 7vw, 88px); border-bottom: 1px solid var(--line); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(79, 179, 217, 0.05) 0 1px, transparent 1px 6px);
}
.hero > * { position: relative; }
.hero__copy { display: flex; flex-direction: column; gap: clamp(18px, 2vw, 28px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; padding-top: 4px; }
.btn {
  display: inline-block; padding: 15px 26px; font-size: 15px; font-weight: 600;
  background: var(--accent); color: var(--accent-ink);
}
.btn:hover, .btn:focus-visible { background: #7fcbe8; color: var(--accent-ink); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--fg); border: 1px solid #2c4753; font-weight: 500; }
.btn--ghost:hover, .btn--ghost:focus-visible { background: var(--panel); color: var(--fg); }

.factbox { border: 1px solid var(--line); background: var(--panel); align-self: start; }
.factbox__title { padding: 18px 24px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); }
.factbox dl { display: grid; grid-template-columns: 1fr 1fr; margin: 0; }
.factbox div { padding: 22px 24px; border-bottom: 1px solid var(--line); }
.factbox div:nth-child(odd) { border-right: 1px solid var(--line); }
.factbox div:nth-last-child(-n+2) { border-bottom: 0; }
.factbox dt { font-size: clamp(26px, 2.6vw, 34px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; }
.factbox dd { margin: 4px 0 0; font-size: 13px; color: var(--fg-dim); }

/* --- mřížky --- */
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: clamp(24px, 3vw, 44px); flex-wrap: wrap; }

.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--bg); padding: clamp(24px, 2.6vw, 34px) clamp(22px, 2.4vw, 32px); display: flex; flex-direction: column; gap: 13px; }
.card:hover { background: var(--panel); }
.card__num { font-family: var(--mono); font-size: 12px; color: var(--accent); }
.card p { font-size: 15px; line-height: 1.62; color: var(--fg-muted); }

/* --- pro vývojové firmy --- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); }
.stack { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); align-self: start; }
.stack__item { background: var(--bg); padding: 22px 24px; }
.stack__item h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; letter-spacing: 0; }
.stack__item p { font-size: 15px; line-height: 1.55; color: var(--fg-muted); }

/* --- procesy --- */
.tabs { display: flex; gap: 1px; background: var(--line); border: 1px solid var(--line); flex-wrap: wrap; }
.tab {
  flex: 1 1 200px; border: 0; cursor: pointer; font-family: var(--font); font-size: 15px; font-weight: 500;
  padding: 15px 18px; background: var(--panel); color: #8fa8b1;
}
.tab[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); }
.tab:hover { color: var(--fg); }
.tab[aria-selected="true"]:hover { color: var(--accent-ink); }

.process { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-top: 0; }
.process__steps { display: flex; flex-direction: column; gap: 1px; background: var(--line); margin: 0; padding: 0; list-style: none; }
.step-btn {
  width: 100%; text-align: left; border: 0; cursor: pointer; font-family: var(--font);
  padding: 18px 22px; display: flex; gap: 14px; align-items: baseline;
  background: var(--panel); color: #c3d5db;
}
.step-btn[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); }
.step-btn__num { font-family: var(--mono); font-size: 12px; opacity: 0.7; }
.step-btn__label { font-size: 16px; font-weight: 500; }

.process__detail { background: var(--bg); padding: clamp(26px, 3vw, 38px) clamp(24px, 3vw, 40px); display: flex; flex-direction: column; gap: 16px; min-height: 300px; }
.process__detail p { font-size: 16px; line-height: 1.68; color: var(--fg-muted); max-width: 64ch; }
.process__out { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.process__out dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); }
.process__out dd { margin: 0; font-size: 15px; font-weight: 500; }
[hidden] { display: none !important; }

/* --- reference --- */
.refs { list-style: none; margin: 0; padding: 0; }
.refs li { display: grid; grid-template-columns: 230px minmax(0, 1fr) 150px; gap: 32px; padding: 24px 0; border-top: 1px solid var(--line); align-items: start; }
.refs li:last-child { border-bottom: 1px solid var(--line); }
.refs h3 { font-size: 17px; font-weight: 600; letter-spacing: 0; }
.refs p { font-size: 15px; line-height: 1.6; color: var(--fg-muted); }
.refs .tag { font-family: var(--mono); font-size: 12px; color: var(--fg-dim); }

/* --- tým --- */
.team { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.person { background: var(--bg); padding: 30px; display: flex; gap: 22px; align-items: flex-start; }
.person__media { flex: none; width: 96px; display: flex; flex-direction: column; gap: 10px; }
.person img { width: 96px; height: 120px; object-fit: cover; border: 1px solid var(--line); filter: grayscale(0.18) contrast(1.03); }
.person__body { display: flex; flex-direction: column; gap: 10px; }
.person h3 { font-size: 19px; letter-spacing: 0; }
.person__role { font-size: 14px; color: #8fa8b1; }
.person p { font-size: 15px; line-height: 1.6; color: var(--fg-muted); }
.person__links { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; font-size: 13px; margin: 0; }

/* --- kontakt --- */
.cta { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: end; padding: clamp(64px, 8vw, 96px) var(--pad-x); }
.cta h2 { font-size: clamp(30px, 3.6vw, 44px); letter-spacing: -0.03em; line-height: 1.1; }
.cta__box { display: flex; flex-direction: column; gap: 16px; }
.cta__box .btn { text-align: center; font-size: 16px; }

/* --- patička --- */
.site-footer { border-top: 1px solid var(--line); }
.site-footer__cols { max-width: var(--maxw); margin: 0 auto; padding: 44px var(--pad-x); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px; font-size: 14px; line-height: 1.75; color: #8fa8b1; }
.site-footer h2 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); margin-bottom: 10px; font-weight: 400; }
.site-footer strong { color: var(--fg); }
.site-footer address { font-style: normal; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.site-footer ul a { color: #8fa8b1; }
.site-footer__legal { border-top: 1px solid var(--line); }
.site-footer__legal div { max-width: var(--maxw); margin: 0 auto; padding: 18px var(--pad-x); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; color: var(--fg-dim); }

/* --- odhalování při scrollu (jen pokud běží JS) --- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* --- responzivita --- */
@media (max-width: 1100px) {
  .hero, .split, .cta { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .refs li { grid-template-columns: 1fr; gap: 6px; padding: 20px 0; }
  .refs .tag { order: -1; }
  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .grid--2, .team { grid-template-columns: 1fr; }
  .tab { flex: 1 1 100%; }
  .site-header__inner { flex-direction: column; align-items: flex-start; gap: 12px; padding-bottom: 10px; }
  .site-nav { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav ul { flex-wrap: nowrap; gap: 18px; padding-bottom: 4px; }
  .site-nav a { white-space: nowrap; font-size: 14px; }
  .lang { margin-left: auto; }
  .shell { border-inline: 0; }
  .factbox dl { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 15px; }
  .factbox dl { grid-template-columns: 1fr; }
  .factbox div:nth-child(odd) { border-right: 0; }
  .factbox div:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
  .factbox div:last-child { border-bottom: 0; }
  .person { flex-direction: row; gap: 16px; }
  .person__media { width: 76px; }
  .person img { width: 76px; height: 96px; }
  .btn { width: 100%; text-align: center; }
  .site-footer__cols { grid-template-columns: 1fr; gap: 28px; }
  .site-footer__legal div { flex-direction: column; gap: 8px; }
  .step-btn { padding: 15px 18px; }
  .process__detail { min-height: 0; }
}

/* dlouhá slova (URL, názvy) nesmí rozbít layout na úzkých displejích */
h1, h2, h3, p, li, dd, .tag { overflow-wrap: anywhere; }

/* --- problém → řešení --- */
.pairs { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.pair { display: grid; grid-template-columns: 1fr 1.25fr; gap: 32px; background: var(--bg); padding: 24px 28px; }
.pair:hover { background: var(--panel); }
.pair__problem { font-size: 18px; font-weight: 600; color: var(--fg); line-height: 1.4; position: relative; padding-left: 20px; }
.pair__problem::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-weight: 400; }
.pair__answer { font-size: 15px; line-height: 1.62; color: var(--fg-muted); }
@media (max-width: 860px) { .pair { grid-template-columns: 1fr; gap: 10px; } }