/* EnergoSet — reset, písma, typografický základ a atmosférické pozadí.
   Mobile-first: základní pravidla platí pro mobil, media queries přidávají desktop. */

/* ---- písma ----
   Inter (text) a JetBrains Mono (čísla), obojí self-hostované ze složky /fonts/.
   Licence OFL, soubory OFL-*.txt jsou ve stejné složce. */
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-500-italic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-500-italic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-600-italic.woff2") format("woff2");
  font-weight: 600;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-600-italic.woff2") format("woff2");
  font-weight: 600;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-700-italic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
  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: "Inter";
  src: url("../fonts/inter-latin-ext-700-italic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-ext-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-ext-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-ext-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-500-italic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
  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: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-ext-500-italic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
  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;
}

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

html {
  scroll-behavior: smooth;
  /* zabrání vodorovnému přetoku, aniž by rozbil position: sticky */
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--es-mint-2);
  color: var(--es-dark);
  font-family: var(--es-font);
  font-size: var(--es-size-body);
  line-height: var(--es-lh-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

p {
  text-align: left;
  text-wrap: pretty;
}

a {
  color: var(--es-teal-ink);
  text-decoration: none;
}

a:hover {
  color: var(--es-teal);
}

input,
textarea,
select,
button {
  box-sizing: border-box;
  font: inherit;
}

::selection {
  background: var(--es-teal);
  color: var(--es-dark);
}

:focus-visible {
  outline: 2px solid var(--es-teal-ink);
  outline-offset: 2px;
}

/* ---- rozvržení stránky ---- */
.page-main {
  flex: 1;
  position: relative;
  z-index: 1;
}

.container {
  max-width: var(--es-container);
  margin-inline: auto;
}

.section {
  padding-inline: var(--es-gutter);
  padding-block: var(--es-section-y) 0;
}

.section--flush {
  padding-block: 0;
}

.section--tight {
  padding-block: var(--es-section-y-sm) 0;
}

section[id] {
  scroll-margin-top: 80px;
}

/* ---- atmosférické pozadí ----
   Mátové záře a měřicí mřížka. Na kontaktní stránce se nepoužívá. */
.has-backdrop::before,
.has-backdrop::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.has-backdrop::before {
  background:
    radial-gradient(58% 42% at 88% -4%, rgba(36, 168, 146, .2), transparent 62%),
    radial-gradient(46% 34% at 4% 22%, rgba(15, 110, 86, .13), transparent 66%),
    radial-gradient(70% 50% at 50% 108%, rgba(15, 43, 42, .09), transparent 64%);
}

.has-backdrop::after {
  background-image:
    linear-gradient(var(--es-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--es-grid) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 12%, transparent 74%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 12%, transparent 74%);
}

/* ---- typografické stupně ---- */
.h1 {
  font-size: var(--es-size-h1);
  line-height: var(--es-lh-h1);
  letter-spacing: -.03em;
  font-weight: 500;
  max-width: 22ch;
  text-wrap: pretty;
}

/* Na mobilu využije nadpis celou šířku jako v hero sekci; omezení na
   30 znaků by ho zbytečně lámalo do úzkého sloupce. */
.h2 {
  font-size: var(--es-size-h2);
  line-height: var(--es-lh-tight);
  letter-spacing: var(--es-track-h2);
  font-weight: 500;
  max-width: none;
  text-wrap: balance;
}

@media (min-width: 768px) {
  .h2 {
    max-width: 30ch;
  }
}

.lead {
  font-size: var(--es-size-lead);
  line-height: var(--es-lh-lead);
  color: var(--es-body);
  max-width: 94ch;
}

.eyebrow {
  font-size: var(--es-size-small-2);
  font-weight: 600;
  letter-spacing: var(--es-track-eyebrow);
  text-transform: uppercase;
  color: var(--es-muted);
}

.eyebrow--teal {
  color: var(--es-teal);
}

.caption {
  font-size: var(--es-size-caption);
  font-weight: 500;
  letter-spacing: var(--es-track-caption);
  color: var(--es-muted);
}

.num {
  font-variant-numeric: tabular-nums;
}

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

/* ---- animace ---- */
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pop {
  from { opacity: 0; transform: translateY(34px) scale(.97); }
  to { opacity: 1; transform: none; }
}

.rise { animation: rise var(--es-dur-reveal) both ease-out; }
.rise--1 { animation-delay: .12s; }
.rise--2 { animation-delay: .22s; }
.rise--3 { animation-delay: .3s; }
.fade { animation: fade .7s .34s both; }

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms;
    animation-iteration-count: 1;
    transition-duration: .01ms;
  }
}

/* ---- desktopové zvětšení bočních okrajů ---- */
@media (min-width: 768px) {
  section[id] { scroll-margin-top: 8px; }
}

@media (min-width: 1024px) {
  .h1 { letter-spacing: var(--es-track-h1); }
}