/* Fonts (self-hosted, GDPR-safe) */

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/archivo-normal-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: 100 900;
  font-display: swap;
  src: url('../fonts/archivo-normal-latin-ext.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: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/archivo-italic-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: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/archivo-italic-latin-ext.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: 'Audiowide';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/audiowide-normal-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: 'Audiowide';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/audiowide-normal-latin-ext.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: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-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: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-latin-ext.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;
}

/* Base */

@property --d1 {
  syntax: '<length-percentage>';
  inherits: true;
  initial-value: 33.33%;
}

@property --d2 {
  syntax: '<length-percentage>';
  inherits: true;
  initial-value: 66.66%;
}

:root {
  /* sRGB fallbacks for browsers without oklch relative color syntax */
  --bg: #181512;
  --surface: rgba(24, 21, 18, 0.80);
  --card-bg: rgba(0, 0, 0, 0.76);

  --text: #f7f1e7;
  --text-soft: #c5bfb5;
  --text-muted: rgba(179, 173, 163, 0.85);

  --border-color: rgba(247, 241, 231, 0.12);
  --border-radius: 12px;

  --blue: #192a3c;
  --blue-soft: #709dcb;

  --red: #41251e;
  --red-soft: #dc927f;

  --orange: #3a2b11;
  --orange-soft: #c7a160;
  --orange-hover: #ebc482;

  --sp-sm: 0.75rem;
  --sp-md: 1.5rem;
  --sp-lg: 3rem;
  --sp-xl: 5rem;

  --font-mono: 'JetBrains Mono', monospace;

  --font-sm: 0.875rem;
  --font-md: 1.08rem;
  --font-lg: clamp(1.5rem, 3vw, 2.5rem);
  --font-xl: clamp(2.25rem, 5vw, 4rem);

  --dur-layout: 0.6s;
  --dur-bg: 0.6s;
  --dur-reveal: 0.55s;
  --ease-layout: ease;
}

/* Modern browsers: derive the palette in oklch */
@supports (color: oklch(from red l c h)) {
  :root {
    --surface: oklch(from var(--bg) l c h / 0.80);
    --card-bg: oklch(0 0 0 / .76);

    --text: oklch(0.96 0.015 80);
    --text-soft: oklch(from var(--text) calc(l * 0.84) c h);
    --text-muted: oklch(from var(--text) calc(l * 0.78) c h / 0.85);

    --border-color: oklch(from var(--text) l c h / 0.12);

    --blue: oklch(0.28 0.04 250);
    --blue-soft: oklch(from var(--blue) calc(l * 2.43) calc(c * 2.1) h);

    --red: oklch(0.30 0.045 35);
    --red-soft: oklch(from var(--red) calc(l * 2.43) calc(c * 2.1) h);

    --orange: oklch(0.30 0.045 80);
    --orange-soft: oklch(from var(--orange) calc(l * 2.43) calc(c * 2.1) h);
    --orange-hover: oklch(from var(--orange-soft) calc(l * 1.15) c h);
  }
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

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

body {
  font-family: Archivo, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}


.site-header, main > section, footer {
  & .inner {
    width: min(100% - 2rem, 1120px);
    margin-inline: auto;
  }
}

/* Site header */

.site-header {
  padding: 1.25rem 0;

  & .inner {
    display: flex;
    flex-wrap: wrap;
    align-items: start;
    justify-content: space-between;
    gap: var(--sp-md);
  }

  & .brand {
    display: grid;
    gap: 0.5rem;
  }

  & .wordmark {
    font-family: Audiowide, sans-serif;
    font-size: clamp(1.5rem, 7vw, 3.5rem);
    line-height: 1;
    color: var(--text);
    white-space: nowrap;

    & em {
      font-family: Archivo, system-ui, sans-serif;
      font-size: 0.5em;
      font-style: normal;
      letter-spacing: normal;
      color: var(--text-muted);
    }
  }

  & h1 {
    max-width: 26ch;
    font-family: Archivo, system-ui, sans-serif;
    font-weight: bold;
    font-size: clamp(1.1rem, 2.4vw, 1.6rem);
    line-height: 1.25;
    color: var(--text-soft);
  }

  & .tagline {
    font-size: var(--font-md);
    color: var(--text-muted);
  }

  & .btn {
    --color: var(--bg);
    flex-shrink: 0;
  }
}

/* Hero */

.hero {
  height: 60vh;
  min-height: 400px;
  border-top: 12px solid var(--bg);
  border-bottom: 12px solid var(--bg);

  background: var(--bg);

  position: relative;
  overflow: hidden;

  --d1-base: 33.33%;
  --d2-base: 66.66%;

  --d1: var(--d1-base);
  --d2: var(--d2-base);

  --skew: 70px;
  --gap: 12px;
  --grow: 4rem;


  &:has(.pane-1 .clip:hover, .pane-1 .ctx:hover) {
    --d1: calc(var(--d1-base) + var(--grow));
    --d2: calc(var(--d2-base) + var(--grow) / 2);
  }

  &:has(.pane-2 .clip:hover, .pane-2 .ctx:hover) {
    --d1: calc(var(--d1-base) - var(--grow) / 2);
    --d2: calc(var(--d2-base) + var(--grow) / 2);
  }

  &:has(.pane-3 .clip:hover, .pane-3 .ctx:hover) {
    --d1: calc(var(--d1-base) - var(--grow) / 2);
    --d2: calc(var(--d2-base) - var(--grow));
  }

  & .pane {
    position: absolute;
    inset: 0;

    pointer-events: none;

    & .clip {
      position: absolute;
      inset: 0;
      overflow: hidden;

      pointer-events: auto;

      transition: clip-path var(--dur-layout) var(--ease-layout);
    }

    & .bg {
      position: absolute;
      top: 0;
      bottom: 0;

      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;

      transition: transform var(--dur-bg) ease,
      left var(--dur-layout) var(--ease-layout),
      right var(--dur-layout) var(--ease-layout);
    }

    & .tint {
      position: absolute;
      inset: 0;

      pointer-events: none;
      opacity: 0.7;
      transition: opacity var(--dur-bg) ease;
    }

    & .ctx {
      position: absolute;
      z-index: 2;
      top: 0;
      bottom: 0;

      display: flex;
      align-items: flex-end;

      padding: 2rem;
      color: var(--text);
      font-weight: bold;

      pointer-events: auto;

      transition: left var(--dur-layout) var(--ease-layout),
      right var(--dur-layout) var(--ease-layout);
    }

    & .inner {
      max-width: 26ch;
    }

    & .pane-title {
      margin-top: 0.5rem;
      font-size: clamp(2rem, 3.5vw, 3.5rem);
      font-weight: bold;
      line-height: 1;
      color: var(--text);
    }

    & p {
      color: var(--text-soft);
      margin-top: 0.5rem;
      line-height: 1.4;
      font-weight: normal;
    }

    & .label {
      color: var(--text-muted);
    }

    &:has(.clip:hover, .ctx:hover) .bg {
      transform: scale(1.1);
    }

    &:has(.clip:hover, .ctx:hover) .tint {
      opacity: 0.4;
    }
  }
}


/* Pane 1 */

.pane-1 {
  & .clip {
    clip-path: polygon(
        0 0,
        calc(var(--d1) + var(--skew) / 2 - var(--gap) / 2) 0,
        calc(var(--d1) - var(--skew) / 2 - var(--gap) / 2) 100%,
        0 100%
    );
  }

  & .bg {
    left: 0;
    right: calc(100% - (var(--d1) + var(--skew)));

    background-color: var(--blue);
    background-image: url('../img/koupelna.webp');
  }

  & .tint {
    background-color: var(--blue);
  }

  & .ctx {
    left: 0;
    right: calc(100% - (var(--d1) - var(--skew) / 2 - var(--gap) / 2));
  }
}


/* Pane 2 */

.pane-2 {
  & .clip {
    clip-path: polygon(
        calc(var(--d1) + var(--skew) / 2 + var(--gap) / 2) 0,
        calc(var(--d2) + var(--skew) / 2 - var(--gap) / 2) 0,
        calc(var(--d2) - var(--skew) / 2 - var(--gap) / 2) 100%,
        calc(var(--d1) - var(--skew) / 2 + var(--gap) / 2) 100%
    );
  }

  & .bg {
    left: calc(var(--d1) - var(--skew));
    right: calc(100% - (var(--d2) + var(--skew)));

    background-color: var(--red);
    background-image: url('../img/topeni.webp');
  }

  & .tint {
    background-color: var(--red);
  }

  & .ctx {
    left: calc(var(--d1) + var(--skew) / 2 + var(--gap) / 2 - var(--skew) * 0.5);
    right: calc(100% - (var(--d2) - var(--skew) / 2 - var(--gap) / 2));
  }
}


/* Pane 3 */

.pane-3 {
  & .clip {
    clip-path: polygon(
        calc(var(--d2) + var(--skew) / 2 + var(--gap) / 2) 0,
        100% 0,
        100% 100%,
        calc(var(--d2) - var(--skew) / 2 + var(--gap) / 2) 100%
    );
  }

  & .bg {
    left: calc(var(--d2) - var(--skew));
    right: 0;

    background-color: var(--orange);
    background-image: url('../img/plyn.webp');
  }

  & .tint {
    background-color: var(--orange);
  }

  & .ctx {
    left: calc(var(--d2) + var(--skew) / 2 + var(--gap) / 2 - var(--skew) * 0.5);
    right: 0;
  }
}

/* Main */

main {
  display: grid;
  gap: 12px;

  & > section {
    padding: var(--sp-xl) 0;

    & h2 {
      font-size: var(--font-xl);
      line-height: 1;
      color: var(--text);
    }

    & .inner {
      display: grid;
      gap: var(--sp-lg);
    }
  }
}

/* Services */

.service {
  --color: var(--blue);
  --color-soft: var(--blue-soft);

  background: var(--color);

  & header {
    display: grid;

    padding-bottom: var(--sp-md);
    border-bottom: 1px solid var(--border-color);

    & .num {
      font-size: clamp(5rem, 18vw, 13rem);
      color: oklch(from var(--text) l c h / 0.04);
      font-weight: 900;
      line-height: 0.84;
      margin-bottom: calc(-0.85 * clamp(2.25rem, 5vw, 4rem));
    }

    & h2 {
      position: relative;
      z-index: 1;
    }

    & h2 > em {
      color: var(--color-soft);
      font-size: inherit;
    }
  }

  & .body {
    display: grid;
    gap: var(--sp-md);
    grid-template-columns: 1fr auto;

    & .col {
      display: grid;
      gap: var(--sp-lg);
    }

    & .actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--sp-sm);
    }

    & p {
      color: var(--text-soft);
      font-size: var(--font-md);
    }

    & ul {
      display: grid;
      gap: var(--sp-sm);
      list-style: none;
      align-self: start;
      font-weight: bold;

      & li {
        display: flex;
        align-items: center;
        gap: var(--sp-sm);
        font-size: 1.2em;
      }

      & li::before {
        content: '';
        width: 0.5rem;
        height: 0.5rem;
        border-radius: 50%;
        background: var(--color-soft);
        box-shadow: 0 0 0 0.22rem oklch(from var(--color-soft) l c h / 0.28);
      }
    }
  }

  & .gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 300px;
    gap: var(--sp-md);

    & > button {
      overflow: hidden;
      border-radius: 12px;
      border: none;
      padding: 0;
      background: none;
      cursor: zoom-in;

      position: relative;

      & .more {
        position: absolute;
        inset: 0;
        display: grid;
        align-items: end;
        justify-content: end;
        pointer-events: none;

        & span {
          background-color: oklch(from var(--bg) l c h / 0.4);
          font-size: var(--font-md);
          color: var(--text);
          padding: var(--sp-sm) var(--sp-md);
          border-top-left-radius: var(--border-radius);
        }
      }
    }

    & img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    & > button:hover img {
      transform: scale(1.07);
    }

    & .hidden {
      display: none;
    }
  }
}

#instalaterstvi {
  --color: var(--blue);
  --color-soft: var(--blue-soft);

  & .gallery > button:nth-child(1) {
    grid-column: span 2;
  }
}

#topenarstvi {
  --color: var(--red);
  --color-soft: var(--red-soft);

  & .gallery > button:nth-child(2) {
    grid-column: span 2;
  }
}

#plyn {
  --color: var(--orange);
  --color-soft: var(--orange-soft);

  & .gallery > button:nth-child(3) {
    grid-column: span 2;
  }
}

/* About */

.about {
  background: #2b2824;
  background: oklch(from var(--bg) calc(l * 1.4) c h);

  & h2 {
    max-width: 14ch;
  }

  & .layout {
    display: grid;
    gap: var(--sp-md);
    grid-template-rows: auto auto;

    & .workflow {
      display: grid;
      gap: var(--sp-md);
      grid-template-columns: repeat(3, 1fr);

      & h3 {
        font-weight: bold;
        font-size: 1.3rem;
        color: var(--text);
      }

      & p {
        color: var(--text-muted);
      }

      & .label {
        color: var(--border);
      }

      & .card {
        border-top: 2px solid var(--border);
      }

      & .card:nth-child(3n + 1) {
        --border: var(--blue-soft);
      }

      & .card:nth-child(3n + 2) {
        --border: var(--red-soft);
      }

      & .card:nth-child(3n) {
        --border: var(--orange-soft);
      }
    }

    & .summary {
      color: var(--text-muted);

      & strong {
        color: var(--text);
      }
    }

    & .people {
      display: grid;
      gap: var(--sp-md);
      grid-template-columns: repeat(2, 1fr);

      & .card {
        grid-template-columns: 7rem minmax(0, 1fr);
        background-color: var(--surface);
        overflow: hidden;
        gap: var(--sp-lg);

        & .portrait {
          display: flex;
          align-items: center;
          width: 7rem;
          height: 7rem;
          border-radius: 50%;
          overflow: hidden;
          box-shadow: 0 0 5px 0.22rem var(--border-color);
          background-color: var(--card-bg);

          & img {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover;
          }
        }
      }

      & .details {
        display: grid;
        align-items: center;
        position: relative;


        & .monogram {
          font-family: Audiowide, system-ui, sans-serif;
          position: absolute;
          right: 0;
          bottom: 0;
          transform: translate(30%, 50%);
          font-size: var(--font-xl);
          line-height: 1;
          color: var(--text-muted);
          opacity: 0.25;
        }
      }

      & h3 {
        font-weight: bold;
        font-size: 1.6rem;
        color: var(--text);
      }

      & p {
        color: var(--text-muted);
      }
    }
  }
}


/* Footer */

footer {
  background-color: var(--card-bg);
  padding: var(--sp-xl) 0;

  & .inner {
    display: grid;
    gap: var(--sp-md);
  }

  & .inner > a {
    color: var(--orange-soft);
    font-size: clamp(2rem, 8.5vw, 8rem);
    font-weight: 900;
    white-space: nowrap;

    &:hover {
      color: var(--orange-hover);
    }
  }

  & h2 {
    font-size: var(--font-xl);
    line-height: 1;
    color: var(--text);
  }

  & p.error {
    color: var(--red-soft);
    text-align: center;
    font-size: var(--font-md);
    padding: var(--sp-md) 0;
  }

  & .info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-md);
  }

  & .card {
    background-color: var(--surface);
    border-color: oklch(from var(--text) l c h / 0.24);
    gap: 0.5rem;
    grid-template-rows: auto 1fr;

    & p:not(.label), & time, & a {
      font-size: 1.25rem;
    }

    & a {
      color: var(--orange-soft);

      &:hover {
        color: var(--orange-hover);
      }
    }
  }

  & .contact-form {
    display: grid;
    gap: var(--sp-sm);
    margin: var(--sp-lg) 0;

    & > * {
      display: grid;
    }

    & > .actions {
      justify-content: center;
      padding: var(--sp-sm) 0;
    }

    & label {
      color: var(--text-muted);
      font-size: var(--font-sm);
      text-transform: uppercase;
    }

    & input, & textarea {
      background-color: var(--surface);
      color: var(--text-soft);
      border: 1px solid oklch(from var(--text) l c h / 0.24);
      border-radius: var(--sp-sm);
      padding: 0.7rem 0.75rem;
      font-size: var(--font-md);
      outline-color: var(--orange-soft);
      outline-offset: 0;
      accent-color: var(--orange-soft);
    }

    & input {
      min-height: 2.75rem;
    }

    & textarea {
      min-height: 7rem;
      resize: vertical;
    }

    & button {
      background-color: transparent;
      color: var(--orange-soft);
      padding: var(--sp-sm) var(--sp-md);
      border: 2px solid var(--orange-soft);
      font-weight: 500;
      letter-spacing: 0.02em;
      border-radius: var(--sp-sm);
      font-size: var(--font-md);
      transition: background-color var(--dur-layout) var(--ease-layout), color var(--dur-layout) var(--ease-layout);
      min-height: 2.75rem;

      &:hover {
        background-color: var(--orange-soft);
        color: var(--bg);
      }
    }

    & .errorlist {
      list-style-position: inside;
      list-style-type: none;
      color: var(--red-soft);
    }

    & div.hp {
      position: absolute;
      left: -9999px;
    }
  }

  & .contact-thanks {
    color: var(--text-muted);
    font-size: var(--font-lg);
  }

  & hr {
    border: none;
    border-top: 1px solid rgba(247, 241, 231, 0.24);
    border-top: 1px solid oklch(from var(--text) l c h / 0.24);
    margin: var(--sp-md) 0;
  }

  & .law {
    display: grid;
    grid-template-columns: 10ch 1fr;
    color: var(--text-soft);

    & .note {
      padding-top: var(--sp-sm);
      grid-column: 1 / -1;
    }
  }
}


/* Atoms */

a {
  color: var(--text);
  text-decoration: none;
  transition: text-decoration var(--dur-layout) var(--ease-layout);
}

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


.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding-inline: 1.25rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--color, var(--blue));
  font-weight: bold;
  text-decoration: none;
  transition: opacity 0.15s ease;

  &:hover {
    opacity: 0.85;
  }

  &.soft {
    background: transparent;
    box-shadow: inset 0 0 0 1px var(--color-soft, var(--blue-soft));
    color: var(--text-soft);

    &:hover {
      background: oklch(from var(--color-soft, var(--blue-soft)) l c h / 0.1);
      opacity: 1;
    }
  }
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid oklch(from var(--text) l c h / 0.28);
  padding: var(--sp-md);

  display: grid;
  gap: var(--sp-sm);
}

.label {
  font-size: var(--font-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

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

/* Lightbox */

.lightbox {
  margin: auto;
  border: none;
  padding: 0;
  background: transparent;
  max-width: none;
  max-height: none;

  &::backdrop {
    background: rgba(0, 0, 0, 0.82);
  }

  & img {
    display: block;
    max-width: min(92vw, 1200px);
    max-height: 88vh;
    border-radius: var(--border-radius);
    cursor: zoom-out;
  }

  & svg {
    width: 1.5rem;
    height: 1.5rem;
    margin: var(--sp-sm);
  }

  & .statusbar {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    pointer-events: none;
    color: var(--text);
    font-size: var(--font-md);

    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  & .close {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background: inherit;

    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text);

    display: grid;
    place-items: center;
    padding: 0;
    cursor: pointer;

    transition: color 0.15s ease;

    &:hover {
      color: var(--text-soft);
    }
  }

  & .nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;

    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    padding: 0;

    background: var(--card-bg);
    color: var(--text);
    font-size: 1.1rem;
    cursor: pointer;
    transition: opacity 0.15s ease;

    &:hover {
      opacity: 0.8;
    }

    &.prev {
      left: 1rem;
    }

    &.next {
      right: 1rem;
    }
  }
}


/* Responsive */

@media (max-width: 900px) {
  .hero {
    height: auto;
    display: grid;
  }

  .hero .pane {
    position: relative;
    height: 20vh;
    min-height: 160px;
  }

  .hero .clip {
    clip-path: none;
  }

  .hero .pane-1 .bg,
  .hero .pane-2 .bg,
  .hero .pane-3 .bg {
    left: 0;
    right: 0;
  }

  .hero .pane-1 .ctx,
  .hero .pane-2 .ctx,
  .hero .pane-3 .ctx {
    left: 0;
    right: 0;
  }

  .about .layout .workflow,
  .about .layout .people {
    grid-template-columns: 1fr;
  }

  .service .body {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }

  .service .gallery {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 200px;
  }

  #instalaterstvi .gallery > button:nth-child(1),
  #topenarstvi .gallery > button:nth-child(2) {
    grid-column: span 1;
  }

  .service .gallery > button:nth-child(3) {
    grid-column: span 2;
  }

  footer {
    & .info {
      grid-template-columns: 1fr;
    }

    & .law {
      grid-template-columns: 1fr;
    }

    & .actions {
      grid-template-columns: 1fr;
    }
  }
}


/* Motion */

/* Scroll reveal — only when JS is on, so no-JS keeps content visible */
.js .reveal {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity var(--dur-reveal) var(--ease-layout),
  transform var(--dur-reveal) var(--ease-layout);
}

.js .reveal.visible {
  opacity: 1;
  transform: none;
}

/* Gentle cascade across the workflow steps */
.js .workflow .reveal:nth-child(2) {
  transition-delay: 0.05s;
}

.js .workflow .reveal:nth-child(3) {
  transition-delay: 0.1s;
}

.js .workflow .reveal:nth-child(4) {
  transition-delay: 0.15s;
}

.js .workflow .reveal:nth-child(5) {
  transition-delay: 0.2s;
}

.js .workflow .reveal:nth-child(6) {
  transition-delay: 0.25s;
}

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

  .hero .clip,
  .hero .bg,
  .hero .ctx,
  .service .gallery img {
    transition: none;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}