/* =========================================================
   LOM SRNÍ — Přírodní areál Srní
   Redesign / návrh  •  „Ponor do hloubky"
   Celý web jako sestup pod hladinu — od světlé hladiny
   nahoře po temné dno s vrakem letadla dole.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --abyss:    #01080e;
  --deep:     #04202d;
  --deep-2:   #0a3a4f;
  --navy:     #0c4a6e;

  --blue:     #0ea5e9;
  --blue-600: #0284c7;
  --sky:      #38bdf8;

  /* Světlý text v bílých bublinách */
  --ink-dark:  #07202c;
  --slate:     #475569;
  --cyan:     #22d3ee;
  --teal:     #2dd4bf;
  --teal-600: #14b8a6;
  --amber:    #f97316;
  --amber-300:#fdba74;
  --coral:    #fb7185;
  --foam:     #e0f2fe;

  /* Text na tmavém */
  --text:        #dcebf6;
  --text-strong: #f8fdff;
  --muted:       #b3cedf;

  /* Sklo / hloubková voda */
  --glass:        rgba(11, 48, 67, 0.50);
  --glass-soft:   rgba(255, 255, 255, 0.05);
  --glass-strong: rgba(13, 58, 82, 0.66);
  --border:       rgba(125, 200, 230, 0.16);
  --border-bright:rgba(56, 189, 248, 0.5);

  --font-display: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --fs-hero:  clamp(2.8rem, 8vw, 7rem);
  --fs-h2:    clamp(2rem, 4.5vw, 3.6rem);
  --fs-h3:    clamp(1.25rem, 2.2vw, 1.6rem);
  --fs-lead:  clamp(1.05rem, 1.6vw, 1.3rem);

  --container: 1140px;
  --radius:    22px;
  --radius-sm: 14px;
  --shadow:    0 28px 70px -28px rgba(0, 0, 0, 0.7);
  --shadow-sm: 0 16px 40px -22px rgba(0, 0, 0, 0.55);
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
/* Mírné zmenšení celé stránky — víc prostoru po stranách */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--abyss); font-size: 94%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
  /* Sestup do hloubky: z tmavě modré až do úplné černé na dně */
  background:
    linear-gradient(180deg,
      #0a3346 0%,
      #08303f 8%,
      #062735 18%,
      #05202d 30%,
      #041a25 44%,
      #03141d 58%,
      #020e15 70%,
      #01090f 82%,
      #00060b 92%,
      #000000 100%);
  background-attachment: scroll;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
/* Pryč s šedým čtvercovým zvýrazněním při tapnutí na mobilu */
a, button { -webkit-tap-highlight-color: transparent; }
ul, ol { list-style: none; padding: 0; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700; line-height: 1.05; letter-spacing: -0.02em;
  color: var(--text-strong);
}

::selection { background: var(--cyan); color: var(--abyss); }

.skip-link {
  position: absolute; left: 16px; top: -60px;
  background: var(--blue); color: #04161f; padding: 12px 18px;
  border-radius: 10px; z-index: 200; transition: top .2s var(--ease); font-weight: 600;
}
.skip-link:focus { top: 16px; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

/* ---------- Ambient — bublinky přes celý web ---------- */
.ambient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

/* Bioluminiscence — jemně pulzující azurové tečky (plankton) */
.biolum { position: absolute; inset: 0; }
.biolum span {
  position: absolute; width: 4px; height: 4px; border-radius: 50%;
  background: rgba(34, 211, 238, 0.9); box-shadow: 0 0 9px 2px rgba(34, 211, 238, 0.55);
  opacity: 0; animation: bioPulse ease-in-out infinite;
}
@keyframes bioPulse { 0%, 100% { opacity: 0; transform: scale(0.4); } 45% { opacity: 0.8; transform: scale(1); } }

/* ---------- HUD: hloubkoměr + zpět nahoru ---------- */
.depth-hud {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  display: flex; flex-direction: column; align-items: flex-end; gap: 10px;
}
.depth-meter {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px;
  background: rgba(3, 20, 28, 0.6); border: 1px solid var(--border); backdrop-filter: blur(10px);
  color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; box-shadow: var(--shadow-sm);
}
.depth-meter svg { width: 16px; height: 16px; color: var(--cyan); }
.to-top {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #04161f;
  box-shadow: 0 14px 30px -10px rgba(14, 165, 233, 0.7);
  opacity: 0; transform: translateY(12px) scale(0.9); pointer-events: none;
  transition: opacity .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); box-shadow: 0 20px 40px -10px rgba(34, 211, 238, 0.85); }
.to-top svg { width: 22px; height: 22px; }
@media (max-width: 560px) { .depth-meter { display: none; } }

/* ---------- Layout helpers ---------- */
.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
.section { padding: clamp(4.5rem, 10vw, 8.5rem) 0; position: relative; z-index: 1; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--sky);
}
.eyebrow::before {
  content: ""; width: 28px; height: 2px; display: inline-block;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}

.section-title { font-size: var(--fs-h2); max-width: 18ch; margin-top: 0.6rem; color: var(--text-strong); text-shadow: 0 2px 26px rgba(0, 0, 0, 0.6); }
.section-lead {
  font-size: var(--fs-lead); color: var(--text); max-width: 60ch; margin-top: 1.2rem;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.65);
}

.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .section-title, .section-head.center .section-lead { margin-inline: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  padding: 0.95em 1.6em; border-radius: 999px; line-height: 1; white-space: nowrap; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.btn svg { width: 18px; height: 18px; }
.btn--primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #04161f;
  box-shadow: 0 14px 34px -12px rgba(14, 165, 233, 0.7);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 22px 44px -12px rgba(34, 211, 238, 0.85); }
.btn--amber { background: linear-gradient(135deg, var(--amber), var(--amber-300)); color: #2a1004; box-shadow: 0 14px 34px -12px rgba(249, 115, 22, 0.6); }
.btn--amber:hover { transform: translateY(-3px); box-shadow: 0 22px 44px -12px rgba(249, 115, 22, 0.85); }
.btn--ghost { background: var(--glass-soft); color: #fff; border: 1px solid rgba(255, 255, 255, 0.25); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.14); transform: translateY(-3px); }
.btn--outline { border: 1.5px solid var(--sky); color: var(--sky); background: transparent; }
.btn--outline:hover { background: var(--sky); color: var(--abyss); transform: translateY(-3px); }

/* =========================================================
   HEADER / NAV
   ========================================================= */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .4s var(--ease), backdrop-filter .4s var(--ease), box-shadow .4s var(--ease), height .3s var(--ease), top .3s var(--ease);
}

/* ---------- Stav areálu (STOP STAV) — pruh nad headerem ---------- */
.stopbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 150;
  display: flex; align-items: center; justify-content: center; gap: 0.6rem;
  padding: 0.6rem 1.1rem; min-height: 44px;
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(0.85rem, 2.4vw, 0.98rem); letter-spacing: 0.01em;
  text-align: center; color: #fff; line-height: 1.25;
  box-shadow: 0 10px 30px -14px rgba(0, 0, 0, 0.7);
}
.stopbar[hidden] { display: none; }
.stopbar__ico { display: inline-flex; flex: none; }
.stopbar__ico svg { width: 20px; height: 20px; }
.stopbar__txt { text-transform: uppercase; }

.stopbar.is-stop    { background: linear-gradient(90deg, #b91c1c, #dc2626); }
.stopbar.is-closed  { background: linear-gradient(90deg, #6d1616, #991b1b); }
.stopbar.is-limited { background: linear-gradient(90deg, #ea580c, var(--amber)); color: #2a1004; }
.stopbar.is-open    { background: linear-gradient(90deg, var(--teal-600), var(--teal)); color: #052e2b; }

/* jemné pulzování ikony u výstražných stavů */
.stopbar.is-stop .stopbar__ico,
.stopbar.is-closed .stopbar__ico { animation: stopPulse 1.8s var(--ease) infinite; }
@keyframes stopPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
@media (prefers-reduced-motion: reduce) {
  .stopbar__ico { animation: none !important; }
}

/* když je pruh aktivní, posuň header i hero pod něj */
body.has-stopbar .header { top: var(--banner-h, 44px); }
body.has-stopbar .hero   { padding-top: calc(var(--nav-h) + var(--banner-h, 44px) + 1rem); }
.header__inner {
  width: min(100% - 2.5rem, 1240px); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.header.scrolled {
  background: rgba(3, 20, 28, 0.72);
  backdrop-filter: blur(16px) saturate(150%);
  box-shadow: 0 1px 0 rgba(125, 200, 230, 0.12), 0 16px 40px -26px rgba(0, 0, 0, 0.8);
  height: 64px;
}

.brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 700; }
.brand__mark {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; flex: none;
  background: linear-gradient(140deg, var(--blue), var(--deep));
  box-shadow: 0 8px 20px -8px rgba(14, 165, 233, 0.8);
}
.brand__mark svg { width: 24px; height: 24px; }
.brand__name { display: flex; flex-direction: column; line-height: 1; color: #fff; }
.brand__name b { font-size: 1.15rem; letter-spacing: 0.02em; }
.brand__name span { font-size: 0.66rem; letter-spacing: 0.22em; text-transform: uppercase; opacity: 0.7; font-weight: 500; }

.nav { display: flex; align-items: center; gap: 0.35rem; }
.nav a {
  position: relative; padding: 0.55rem 0.85rem; border-radius: 10px;
  font-size: 0.93rem; font-weight: 500; color: rgba(225, 242, 254, 0.82);
  transition: color .25s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.34rem; height: 2px;
  background: linear-gradient(90deg, var(--sky), var(--teal)); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav a:hover { color: #fff; }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav a.active { color: #fff; }

.header__cta { display: flex; align-items: center; gap: 0.6rem; }
.nav-phone {
  display: inline-flex; align-items: center; gap: 8px; color: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; padding: 0.5rem 0.6rem; border-radius: 10px;
}
.nav-phone svg { width: 17px; height: 17px; color: var(--cyan); }

.nav-toggle {
  display: none; width: 46px; height: 46px; border-radius: 12px; position: relative; z-index: 120;
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.2);
}
.nav-toggle span { position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px; transition: .3s var(--ease); }
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 22px; transform: rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* =========================================================
   HERO — hladina
   ========================================================= */
.hero {
  position: relative; min-height: 100svh; z-index: 1;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + 1rem) 0 clamp(6rem, 14vh, 10rem); overflow: hidden;
  color: #fff;
}

/* Fotky hladiny — pomalu se prolínají */
.hero__slides { position: absolute; inset: 0; z-index: 0; overflow: hidden; background: #06283a; }
.hero__slide {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 1.8s ease;
}
.hero__slide.is-active { opacity: 1; }

/* Závoj nad fotkou — ztmavení pro čitelnost textu */
.hero__veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 70% at 50% -6%, rgba(150, 222, 245, 0.10), transparent 52%),
    linear-gradient(180deg,
      rgba(2, 10, 16, 0.58) 0%,
      rgba(2, 12, 20, 0.54) 32%,
      rgba(2, 15, 24, 0.62) 70%,
      rgba(3, 20, 30, 0.74) 100%);
}
.hero .bubbles { z-index: 1; }

/* Sluneční záře vpravo nahoře (kde je slunce na fotce) */
.hero__sun {
  position: absolute; top: -10%; right: 2%; z-index: 1; pointer-events: none;
  width: 40vw; max-width: 540px; height: 40vw; max-height: 540px;
  background: radial-gradient(circle, rgba(255, 244, 214, 0.34), rgba(255, 226, 178, 0.12) 36%, transparent 66%);
  filter: blur(6px); animation: sunPulse 9s ease-in-out infinite;
}
@keyframes sunPulse { 0%, 100% { opacity: .72; transform: scale(1); } 50% { opacity: 1; transform: scale(1.05); } }

/* Třpyt světla na hladině — vypnuto */
.hero__glints { display: none; }

/* „Ponoř se" — chytrý scroll indikátor, který přitáhne oko bez tlačení */
.hero__scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3;
  display: inline-flex; flex-direction: column; align-items: center; gap: 12px;
  color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.26em; text-transform: uppercase; text-shadow: 0 2px 12px rgba(0,0,0,.6);
  transition: transform .3s var(--ease);
}
.hero__scroll span { transition: color .25s var(--ease); }
.hero__scroll svg {
  width: 56px; height: 56px; padding: 15px; border-radius: 50%;
  color: #fff;
  background: rgba(34, 211, 238, 0.14);
  border: 2px solid rgba(255, 255, 255, 0.65);
  box-sizing: border-box;
  /* sonarová pulzace + stálá kruhová záře (žádný backdrop-filter → na iOS žádný čtverec) */
  animation: bob 1.9s ease-in-out infinite, scrollPing 2.4s ease-out infinite;
  transition: background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.hero__scroll:hover { transform: translateX(-50%) translateY(-3px); }
.hero__scroll:hover span { color: var(--cyan); }
.hero__scroll:hover svg {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-color: transparent; color: #04161f; transform: scale(1.08);
  animation-play-state: paused;
}
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(7px); } }
@keyframes scrollPing {
  0%   { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6),  0 0 18px 2px rgba(34, 211, 238, 0.35); }
  70%  { box-shadow: 0 0 0 20px rgba(34, 211, 238, 0), 0 0 18px 2px rgba(34, 211, 238, 0.35); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0),    0 0 18px 2px rgba(34, 211, 238, 0.35); }
}

/* Vlnící se hladina na spodku hero — tudy se „ponoříš" */
.hero__wave { position: absolute; left: 0; right: 0; bottom: -1px; height: clamp(70px, 10vh, 130px); z-index: 2; overflow: hidden; line-height: 0; pointer-events: none; }
.hero__wave-svg { position: absolute; bottom: 0; left: 0; width: 200%; height: 100%; }
.hw-back path { fill: rgba(9, 46, 62, 0.7); }
.hw-front path { fill: #0a3346; }
.hw-back { animation: waveMove 17s linear infinite; }
.hw-front { animation: waveMove 11s linear infinite reverse; }
@keyframes waveMove { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Elegantní nástup obsahu hero */
@keyframes heroIn { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
.hero__titlewrap { animation: heroIn 1s var(--ease) .05s both; }
.hero__sub     { animation: heroIn 1s var(--ease) .2s both; }
.hero__actions { animation: heroIn 1s var(--ease) .35s both; }

/* Bublinky + sediment */
.bubbles, .snow { position: absolute; inset: 0; }
.bubble {
  position: absolute; bottom: -40px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.7), rgba(56, 189, 248, 0.15));
  box-shadow: inset 0 0 6px rgba(255, 255, 255, 0.5);
  animation: rise linear infinite; opacity: 0;
}
@keyframes rise {
  0%   { transform: translateY(0) translateX(0) scale(0.6); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(-104vh) translateX(40px) scale(1.1); opacity: 0; }
}
.snowflake {
  position: absolute; top: -12px; border-radius: 50%;
  background: rgba(196, 232, 247, 0.5); filter: blur(0.4px);
  animation: drift linear infinite; opacity: 0;
}
@keyframes drift {
  0%   { transform: translateY(-12px) translateX(0);   opacity: 0; }
  12%  { opacity: .55; }
  88%  { opacity: .4; }
  100% { transform: translateY(108vh) translateX(34px); opacity: 0; }
}

.hero__glow {
  position: absolute; width: 70vw; height: 70vw; max-width: 820px; max-height: 820px;
  right: -12%; top: -6%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 62%);
  filter: blur(38px); border-radius: 50%;
}

.hero__inner { position: relative; z-index: 2; width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
/* Hero na střed — zkušebně */
.hero { text-align: center; }
.hero__sub { margin-inline: auto; }
.hero__actions { justify-content: center; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px; padding: 0.5rem 1rem; border-radius: 999px;
  background: rgba(56, 189, 248, 0.12); border: 1px solid rgba(56, 189, 248, 0.3);
  font-size: 0.85rem; font-weight: 500; letter-spacing: 0.04em; color: var(--foam); backdrop-filter: blur(6px);
}
.hero__tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6); animation: pulse 2.5s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);} 70%{ box-shadow: 0 0 0 12px rgba(34, 211, 238, 0);} 100%{box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);} }

.hero__titlewrap { position: relative; }
.hero__title {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(3.2rem, 12vw, 9.5rem);
  line-height: 0.9; letter-spacing: -0.04em; margin: 1.2rem 0 0; color: #fff;
  filter: drop-shadow(0 12px 38px rgba(0, 0, 0, 0.55));
}
/* Dvoubarevný nadpis: „Lom" bílé, „Srní" tyrkysové */
.t-white {
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
}
.t-accent {
  color: var(--cyan);
  -webkit-text-fill-color: var(--cyan);
}
.hero__sub { font-size: clamp(0.92rem, 1.2vw, 1.05rem); color: #ffffff; font-weight: 500; max-width: 66ch; margin-top: 1.3rem; text-shadow: 0 3px 22px rgba(0, 0, 0, 0.7); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; }

/* Akcent barva (sdílený) */
.accent {
  color: var(--cyan);
  -webkit-text-fill-color: var(--cyan);
}

/* Rotující slovo (sdílené) */
.rotator { color: var(--cyan); display: inline-block; min-width: 8ch; font-weight: 700; transition: opacity .3s var(--ease), transform .3s var(--ease); }
.rotator.swap { opacity: 0; transform: translateY(8px); }

/* =========================================================
   PONOR — přechod pod hladinu
   ========================================================= */
.dive-intro {
  position: relative; overflow: hidden; z-index: 1;
  min-height: clamp(66vh, 82vh, 880px); display: grid; place-items: center;
  padding: clamp(4.5rem, 12vh, 8rem) 0; text-align: center;
}
.dive-intro__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
/* difuzní světlo z hladiny shora — měkce mizí do ztracena, žádné pruhy ani hrana */
.dive-intro__surface {
  position: absolute; top: 0; left: 0; right: 0; height: 78%;
  background:
    radial-gradient(72% 95% at 50% -10%, rgba(150, 222, 245, 0.22), transparent 60%),
    radial-gradient(42% 75% at 30% -12%, rgba(150, 222, 245, 0.10), transparent 62%),
    radial-gradient(42% 75% at 72% -12%, rgba(150, 222, 245, 0.10), transparent 62%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 100%);
          mask-image: linear-gradient(180deg, #000 0%, transparent 100%);
}
/* světelné paprsky shora — celá vrstva mizí dolů do ztracena */
.dive-intro__rays {
  position: absolute; inset: 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 20%, transparent 82%);
          mask-image: linear-gradient(180deg, #000 0%, #000 20%, transparent 82%);
}
.dive-intro .ray {
  position: absolute; top: -25%; height: 160%;
  background: linear-gradient(to bottom, rgba(150, 228, 248, 0.22), rgba(150, 228, 248, 0) 85%);
  filter: blur(18px); transform-origin: top center; mix-blend-mode: screen;
  animation: sway 14s ease-in-out infinite;
}
.dive-intro .ray:nth-child(1) { left: 8%;  width: 10vw; transform: rotate(9deg);  animation-delay: 0s;  opacity: .75; }
.dive-intro .ray:nth-child(2) { left: 28%; width: 7vw;  transform: rotate(6deg);  animation-delay: -3s; opacity: .55; }
.dive-intro .ray:nth-child(3) { left: 50%; width: 13vw; transform: rotate(11deg); animation-delay: -6s; opacity: .5; }
.dive-intro .ray:nth-child(4) { left: 71%; width: 8vw;  transform: rotate(7deg);  animation-delay: -2s; opacity: .6; }
.dive-intro .ray:nth-child(5) { left: 88%; width: 11vw; transform: rotate(10deg); animation-delay: -8s; opacity: .45; }
@keyframes sway { 0%, 100% { transform: rotate(9deg) translateX(0); opacity: .4; } 50% { transform: rotate(13deg) translateX(20px); opacity: .8; } }
/* tančící světlo (kaustiky) u hladiny */
.dive-intro__caustics {
  position: absolute; inset: -10% -10% 55% -10%;
  background:
    radial-gradient(38% 30% at 18% 8%,  rgba(150, 230, 250, 0.16), transparent 60%),
    radial-gradient(34% 26% at 52% 4%,  rgba(95, 210, 240, 0.13),  transparent 60%),
    radial-gradient(44% 32% at 82% 12%, rgba(150, 230, 250, 0.12), transparent 60%);
  mix-blend-mode: screen; filter: blur(10px);
  -webkit-mask-image: linear-gradient(to bottom, #000 10%, transparent 80%);
          mask-image: linear-gradient(to bottom, #000 10%, transparent 80%);
  animation: caustic 16s ease-in-out infinite alternate;
}
@keyframes caustic {
  0%   { transform: translate3d(0,0,0) scale(1);        opacity: .7; }
  50%  { transform: translate3d(2%,1.5%,0) scale(1.06); opacity: 1; }
  100% { transform: translate3d(-2%,1%,0) scale(1.03);  opacity: .8; }
}
/* ryby plující pod hladinou */
.fish { position: absolute; inset: 0; overflow: hidden; }
/* rybí vrstva ukotvená přes celou výšku stránky — scrolluje s obsahem */
.depthfish { z-index: 0; pointer-events: none; }
.fish span { position: absolute; display: block; color: rgba(16, 60, 82, 0.8); animation: swim linear infinite; will-change: transform; }
.fish span svg { width: 100%; height: 100%; display: block; fill: currentColor; }
/* plave doprava — hlavou napřed (ryba je nakreslená hlavou doleva, proto otočit) */
@keyframes swim {
  0%   { transform: translateX(-14vw) scaleX(-1); opacity: 0; }
  12%  { opacity: 1; }
  88%  { opacity: 0.85; }
  100% { transform: translateX(116vw) scaleX(-1); opacity: 0; }
}
/* plave doleva — hlavou napřed (přirozená orientace) */
@keyframes swimFlip {
  0%   { transform: translateX(116vw); opacity: 0; }
  12%  { opacity: 1; }
  88%  { opacity: 0.85; }
  100% { transform: translateX(-14vw); opacity: 0; }
}
.dive-intro__inner { position: relative; z-index: 2; }
.dive-intro__title {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(2.2rem, 6.5vw, 5rem);
  line-height: 1.02; letter-spacing: -0.03em; color: #fff; margin-top: 0.7rem;
  text-shadow: 0 12px 55px rgba(0, 0, 0, 0.6);
}
.dive-intro__for { margin-top: 1.3rem; font-family: var(--font-display); font-weight: 500; color: #d6edfa; font-size: clamp(1.05rem, 1.7vw, 1.35rem); text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55); }

.hero__stats { display: flex; flex-wrap: wrap; gap: 2.6rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.stat b { font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.7rem); display: inline-flex; align-items: baseline; line-height: 1; color: #fff; }
.stat b.has-plus::after { content: "+"; color: var(--teal); margin-left: 1px; }
.stat span { display: block; font-size: 0.85rem; color: #9fc6e0; letter-spacing: 0.02em; margin-top: 6px; }

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }

/* =========================================================
   GLASS CARD — společný základ
   ========================================================= */
.glass {
  background: var(--glass); border: 1px solid var(--border);
  backdrop-filter: blur(14px) saturate(140%); border-radius: var(--radius);
}

/* Panel „O nás" — tmavé sklo jako zbytek webu */
.bubble-panel {
  position: relative; overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px) saturate(140%);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 3.2rem);
  box-shadow: var(--shadow);
}
.bubble-panel::after {
  content: ""; position: absolute; top: -28%; left: -8%; width: 55%; height: 65%;
  background: radial-gradient(circle at 32% 32%, rgba(56, 189, 248, 0.12), transparent 60%);
  opacity: 1; pointer-events: none; border-radius: 50%;
}
.bubble-panel strong { color: var(--text-strong); }

/* =========================================================
   O NÁS + TIMELINE
   ========================================================= */
/* O nás je kompaktnější než ostatní sekce */
.about { padding-block: clamp(3rem, 6vw, 5rem); }
.about .bubble-panel { padding: clamp(1.5rem, 3vw, 2.5rem); }
.about .section-title { font-size: clamp(1.6rem, 3.2vw, 2.5rem); }
.about__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(1.6rem, 4vw, 3.2rem); align-items: start; }
.about__lead { margin-top: 1rem; }
.about__lead p { margin-bottom: 0.8rem; font-size: 0.96rem; line-height: 1.6; }
.about__lead p:last-child { margin-bottom: 0; }

.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(var(--blue), var(--teal), var(--cyan), transparent);
}
.tl-item { position: relative; padding-bottom: 1.1rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--deep); border: 3px solid var(--sky); box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.14);
}
.tl-item .year { font-family: var(--font-display); font-weight: 700; color: var(--sky); font-size: 0.96rem; }
.tl-item p { color: var(--text); margin-top: 3px; font-size: 0.9rem; line-height: 1.5; }

/* =========================================================
   ZÓNY
   ========================================================= */
.zone-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.zone {
  position: relative; padding: 2rem; border-radius: var(--radius);
  background: var(--glass); border: 1px solid var(--border); backdrop-filter: blur(12px);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease), background .4s var(--ease);
}
.zone::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0;
  background: radial-gradient(120% 80% at 100% 0%, rgba(56, 189, 248, 0.14), transparent 60%);
  transition: opacity .4s var(--ease);
}
.zone::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 1;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--teal)); opacity: .42; transition: opacity .4s var(--ease);
}
.zone:hover::before { opacity: .9; }
.zone:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-bright); background: var(--glass-strong); }
.zone:hover::after { opacity: 1; }
.zone__icon {
  width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 1.2rem;
  background: rgba(56, 189, 248, 0.1); border: 1px solid var(--border); color: var(--sky);
}
.zone__icon svg { width: 28px; height: 28px; }
.zone-grid .zone:nth-child(2) .zone__icon { color: var(--teal); }
.zone-grid .zone:nth-child(3) .zone__icon { color: var(--cyan); }
.zone h3 { font-size: var(--fs-h3); color: var(--text-strong); }
.zone p { color: var(--text); margin-top: 0.6rem; font-size: 0.98rem; }

/* =========================================================
   SLUŽBY
   ========================================================= */
.services { overflow: hidden; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.feature + .feature { border-top: 1px solid var(--border); }
.feature__media { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 360px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.feature:nth-child(even) .feature__text { order: 2; }
.feature__media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; transition: transform .8s var(--ease); }
.feature__media:hover img { transform: scale(1.05); }
.feature__media .ph { position: absolute; inset: 0; display: grid; place-items: center; color: rgba(190, 230, 250, 0.45); background: linear-gradient(150deg, var(--deep-2), #062536); }
.feature__badge {
  position: absolute; left: 16px; top: 16px; z-index: 2; color: #fff; backdrop-filter: blur(8px);
  background: rgba(4, 22, 31, 0.7); padding: 0.5rem 1rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.feature h3 { font-size: var(--fs-h2); color: var(--text-strong); }
.feature__text > p { color: var(--text); margin-top: 1rem; font-size: var(--fs-lead); }
.feature__list { margin-top: 1.6rem; display: grid; gap: 0.8rem; }
.feature__list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-strong); font-weight: 500; }
.feature__list svg { width: 22px; height: 22px; color: var(--cyan); flex: none; margin-top: 2px; }
.feature__cta { margin-top: 2rem; }

/* Tmavší ponorná sekce — bez lokálního ztmavení, ať pozadí plyne plynule */
.section--dark { position: relative; }
.dive-attractions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-top: 1rem; }
.dive-card {
  position: relative; overflow: hidden; padding: 1.8rem; border-radius: var(--radius);
  background: var(--glass-soft); border: 1px solid rgba(56, 189, 248, 0.18); backdrop-filter: blur(8px);
  transition: transform .4s var(--ease), background .4s var(--ease), border-color .4s var(--ease);
}
.dive-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 1;
  background: linear-gradient(90deg, var(--cyan), var(--teal)); opacity: .42; transition: opacity .4s var(--ease);
}
.dive-card:hover { transform: translateY(-6px); background: rgba(56, 189, 248, 0.09); border-color: var(--border-bright); }
.dive-card:hover::before { opacity: .9; }
.dive-card .depth { font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.14em; color: var(--cyan); text-transform: uppercase; }
.dive-card .depth.is-new { color: var(--teal); }
.dive-card .depth.is-up { color: var(--amber-300); }
.dive-card h4 { font-family: var(--font-display); font-size: 1.25rem; color: #fff; margin: 0.5rem 0; }
.dive-card p { color: var(--text); font-size: 0.95rem; }
.dive-card__icon { color: var(--cyan); margin-bottom: 1rem; }
.dive-card__icon svg { width: 30px; height: 30px; }

/* =========================================================
   CENÍK
   ========================================================= */
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.price-card {
  position: relative; display: flex; flex-direction: column; padding: 1.9rem 1.6rem; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 58, 82, 0.5), rgba(5, 28, 40, 0.5));
  border: 1px solid var(--border); backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.price-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--teal)); opacity: .55; transition: opacity .4s var(--ease);
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-bright); }
.price-card:hover::before { opacity: 1; }
.price-card.featured {
  background: linear-gradient(165deg, rgba(14, 165, 233, 0.26), rgba(4, 22, 31, 0.72));
  border-color: var(--border-bright); box-shadow: 0 30px 70px -28px rgba(14, 165, 233, 0.45);
}
.price-card.featured::before { opacity: 1; height: 4px; }
.price-card.featured .pc-ribbon {
  position: absolute; top: 16px; right: 16px; background: var(--amber); color: #2a1004;
  font-size: 0.7rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; letter-spacing: 0.04em;
}
.price-card__head { display: flex; align-items: center; gap: 12px; margin-bottom: 1.3rem; }
.price-card__head .ico { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; flex: none; background: rgba(56, 189, 248, 0.12); color: var(--sky); border: 1px solid var(--border); }
.price-card__head .ico svg { width: 24px; height: 24px; }
.price-grid .price-card:nth-child(3) .ico { color: var(--teal); background: rgba(45, 212, 191, 0.12); }
.price-card__head h3 { font-size: 1.22rem; color: var(--text-strong); }
.price-row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--border); font-size: 0.94rem; color: var(--muted); }
.price-row:last-child { border-bottom: none; }
.price-row strong { font-family: var(--font-display); color: var(--cyan); font-size: 1.05rem; white-space: nowrap; }
.price-card.featured .price-row strong { color: var(--sky); }
.price-grid .price-card:nth-child(3) .price-row strong { color: var(--teal); }
.price-note {
  margin-top: 2rem; display: flex; gap: 14px; align-items: flex-start; padding: 1.1rem 1.3rem; border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.08); border: 1px solid rgba(56, 189, 248, 0.22); color: var(--text);
}
.price-note svg { width: 24px; height: 24px; color: var(--cyan); flex: none; }
.price-note b { color: var(--sky); }

/* =========================================================
   NÁVŠTĚVNÍ ŘÁD
   ========================================================= */
.rules__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.rule {
  position: relative; overflow: hidden; padding: 1.7rem; border-radius: var(--radius);
  background: var(--glass); border: 1px solid var(--border); backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease), background .4s var(--ease);
}
.rule::after {
  content: ""; position: absolute; top: -30%; left: -10%; width: 55%; height: 60%;
  background: radial-gradient(circle at 32% 32%, rgba(56, 189, 248, 0.12), transparent 60%);
  opacity: 1; pointer-events: none; border-radius: 50%;
}
.rule:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-bright); background: var(--glass-strong); }
.rule__no { font-family: var(--font-display); font-weight: 700; color: rgba(56, 189, 248, 0.4); font-size: 2rem; line-height: 1; }
.rule h4 { color: var(--text-strong); margin: 0.5rem 0 0.4rem; font-size: 1.08rem; position: relative; }
.rule p { color: var(--text); font-size: 0.92rem; position: relative; }

/* =========================================================
   AKTUALITY
   ========================================================= */
.news__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.news__panel {
  position: relative; overflow: hidden; padding: clamp(2rem, 4vw, 3rem); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(10, 58, 79, 0.7), rgba(2, 16, 26, 0.8)); border: 1px solid var(--border);
  backdrop-filter: blur(10px); box-shadow: var(--shadow);
}
.news__panel::before { content: ""; position: absolute; right: -30%; top: -30%; width: 80%; height: 80%; background: radial-gradient(circle, rgba(34, 211, 238, 0.25), transparent 65%); filter: blur(20px); }
.news__panel .year-badge { font-family: var(--font-display); font-size: clamp(3rem, 8vw, 5rem); font-weight: 700; line-height: 1; color: rgba(56, 189, 248, 0.3); }
.news__panel h3 { font-size: var(--fs-h3); margin-top: 0.5rem; position: relative; color: #fff; }
.news__panel p { color: #c7e6f5; margin-top: 1rem; position: relative; }
/* Novinky 2026 — karty s ikonami místo fajfek */
.news-list { display: grid; gap: 0.85rem; }
.news-item {
  position: relative; overflow: hidden;
  display: flex; align-items: center; padding: 1.1rem 1.4rem; border-radius: var(--radius-sm);
  background: var(--glass); border: 1px solid var(--border); backdrop-filter: blur(8px);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease);
}
/* boční akcentní pruh */
.news-item::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(var(--cyan), var(--teal)); opacity: .45; transition: opacity .35s var(--ease);
}
.news-item:hover {
  transform: translateX(7px); border-color: var(--border-bright);
  box-shadow: var(--shadow-sm); background: var(--glass-strong);
}
.news-item:hover::before { opacity: 1; }
.news-item .txt { color: var(--text-strong); font-weight: 500; line-height: 1.4; }

/* =========================================================
   FOTOGALERIE
   ========================================================= */
.gallery__grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 1rem; }
.gphoto {
  position: relative; border-radius: var(--radius-sm); overflow: hidden; cursor: pointer;
  background: linear-gradient(135deg, var(--deep-2), var(--blue)); box-shadow: var(--shadow-sm); border: 1px solid var(--border);
}
.gphoto img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.gphoto:hover img { transform: scale(1.08); }
.gphoto::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(60% 50% at 80% 15%, rgba(255, 255, 255, 0.16), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-opacity='0.5' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14.5 4h-5L7 7H4a2 2 0 0 0-2 2v9a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2h-3l-2.5-3Z'/%3E%3Ccircle cx='12' cy='13' r='3.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat, no-repeat; background-position: center, center;
}
.gphoto:has(img)::before { display: none; }
.gphoto[data-grad="1"] { background: linear-gradient(150deg, #0a384c, #0ea5e9); }
.gphoto[data-grad="2"] { background: linear-gradient(150deg, #0284c7, #22d3ee); }
.gphoto[data-grad="3"] { background: linear-gradient(150deg, #062a3d, #14b8a6); }
.gphoto[data-grad="4"] { background: linear-gradient(150deg, #04161f, #0c4a6e); }
.gphoto[data-grad="5"] { background: linear-gradient(150deg, #0c4a6e, #38bdf8); }
.gphoto[data-grad="6"] { background: linear-gradient(150deg, #083a52, #2dd4bf); }
.gphoto .cap { position: absolute; left: 14px; bottom: 12px; z-index: 2; color: #fff; font-weight: 600; font-size: 0.9rem; opacity: 0; transform: translateY(8px); transition: .4s var(--ease); text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6); }
.gphoto:hover .cap { opacity: 1; transform: none; }
.gphoto.tall { grid-row: span 2; }
.gphoto.wide { grid-column: span 2; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 300; background: rgba(1, 8, 14, 0.94); display: none; align-items: center; justify-content: center; padding: 4vw; backdrop-filter: blur(8px); }
.lightbox.open { display: flex; animation: fade .3s var(--ease); }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 12px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7); }
.lightbox__close { position: absolute; top: 24px; right: 28px; width: 48px; height: 48px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.25); color: #fff; display: grid; place-items: center; font-size: 1.5rem; }
.lightbox__close:hover { background: rgba(255, 255, 255, 0.2); }

/* =========================================================
   KONTAKT
   ========================================================= */
.contact__grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact__cards { display: grid; gap: 1rem; align-content: start; }
.cc {
  display: flex; gap: 16px; align-items: center; padding: 1.3rem 1.5rem; border-radius: var(--radius-sm);
  background: var(--glass); border: 1px solid var(--border); backdrop-filter: blur(10px);
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.cc:hover { background: var(--glass-strong); border-color: var(--border-bright); transform: translateY(-3px); }
.cc__ico { width: 50px; height: 50px; border-radius: 14px; flex: none; display: grid; place-items: center; background: linear-gradient(135deg, var(--blue), var(--cyan)); color: var(--abyss); }
.cc__ico svg { width: 24px; height: 24px; }
.cc small { display: block; color: var(--muted); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; }
.cc b, .cc a { font-family: var(--font-display); font-size: 1.1rem; color: #fff; }
.cc:hover a { color: var(--cyan); }

.contact__map { border-radius: var(--radius); overflow: hidden; height: 340px; box-shadow: var(--shadow); border: 1px solid var(--border-bright); }
.contact__map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; display: block; }

.contact-form { margin-top: 2.5rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; letter-spacing: 0.04em; }
.field input, .field textarea {
  width: 100%; padding: 0.85rem 1rem; border-radius: 12px; font-family: inherit; font-size: 1rem; color: #fff;
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.18);
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: #6f93ac; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--cyan); background: rgba(56, 189, 248, 0.08); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.6rem; }
.form-ok { display: none; color: var(--cyan); font-weight: 600; margin-top: 0.6rem; }
.form-ok.show { display: block; }

/* =========================================================
   DNO LOMU — vrak letadla
   ========================================================= */
.deep { position: relative; z-index: 1; overflow: hidden; }
.deep__scene { position: relative; width: 100%; height: clamp(540px, 76vh, 860px); z-index: 0; pointer-events: none; line-height: 0; }
.deep__scene svg { width: 100%; height: 100%; display: block; }
.deep__intro {
  position: absolute; top: clamp(2.5rem, 7vh, 5rem); left: 0; right: 0; margin-inline: auto; z-index: 2;
  width: min(100% - 2.5rem, 720px); text-align: center;
}
.deep__intro .section-title, .deep__intro .section-lead { margin-inline: auto; }

.prop { transform-box: fill-box; transform-origin: center; animation: spin 22s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Čelovky potápěčů — ztlumené */
.divers .beam path { opacity: 0.25; }
.divers .pool ellipse { opacity: 0.06; }
.divers .lamp { opacity: 0.35; }
.divers .beam path, .divers .pool ellipse, .divers .lamp { animation: lampFlicker 5s ease-in-out infinite; }
.divers .pool ellipse { animation-duration: 4.7s; }
.divers .lamp { animation-duration: 3.9s; }
@keyframes lampFlicker { 0%, 100% { opacity: 0.3; } 38% { opacity: 0.45; } 64% { opacity: 0.2; } }
.divers .blink { animation: lampBlink 2.8s linear infinite !important; }
@keyframes lampBlink {
  0%, 100% { opacity: 0.4; }
  5% { opacity: 0.05; } 9% { opacity: 0.4; }
  24% { opacity: 0.4; } 27% { opacity: 0.1; } 31% { opacity: 0.4; }
  58% { opacity: 0.35; } 62% { opacity: 0.06; } 66% { opacity: 0.4; }
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer { position: relative; z-index: 2; padding: clamp(2rem, 5vh, 3.5rem) 0 2.5rem; color: var(--muted); background: #000; }
/* dotmavení nad patičkou, aby dno scény plynule přešlo do hluboké černé */
.footer::before {
  content: ""; position: absolute; left: 0; right: 0; top: -13rem; bottom: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, #000 45%);
}
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer .brand__name, .footer .brand__name b { color: #fff; }
.footer p { margin-top: 1rem; max-width: 36ch; font-size: 0.95rem; }
.footer h5 { font-family: var(--font-display); color: #fff; font-size: 0.95rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 1rem; }
.footer__links a { display: block; padding: 0.35rem 0; transition: color .25s var(--ease); }
.footer__links a:hover { color: var(--cyan); }
.footer__bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; padding-top: 1.6rem; font-size: 0.85rem; }
.footer__bottom a:hover { color: var(--cyan); }
.footer__credit a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1080px) {
  .price-grid, .rules__grid { grid-template-columns: repeat(2, 1fr); }
  .dive-attractions, .zone-grid { grid-template-columns: 1fr; }
}
@media (max-width: 960px) {
  .nav, .header__cta .btn { display: none; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 0; z-index: 110; flex-direction: column; justify-content: center; gap: 0.5rem; display: flex;
    background: radial-gradient(120% 100% at 50% 0%, #0a3a4f, #01080e);
    /* visibility + pointer-events: zavřené menu se vůbec nevykresluje (žádné vyskakující řádky při scrollu) */
    transform: translateY(-100%); visibility: hidden; pointer-events: none;
    transition: transform .5s var(--ease), visibility .5s var(--ease);
  }
  body.nav-open .nav { transform: none; visibility: visible; pointer-events: auto; }
  .nav a { font-size: 1.4rem; color: #fff; padding: 0.6rem 1.2rem; }
  .nav a::after { display: none; }
  /* Telefon v hlavičce na jeden řádek + víc místa (skryjeme podtitulek loga) */
  .nav-phone { display: inline-flex; white-space: nowrap; font-size: 0.82rem; gap: 5px; padding: 0.4rem 0.3rem; }
  .nav-phone svg { width: 15px; height: 15px; }
  .brand__name span { display: none; }
  .header__inner { gap: 0.75rem; }
  /* Mobil: sekce se zobrazí hned, žádné postupné/zaseknuté naskakování */
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .about__grid, .news__grid, .contact__grid { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; }
  .feature:nth-child(even) .feature__text { order: 0; }
  .feature__media { min-height: 280px; }
  .footer__top { grid-template-columns: 1fr; gap: 2rem; }
  .deep__scene { height: clamp(420px, 56vh, 600px); }
  .deep__intro { top: clamp(2rem, 6vh, 4rem); }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 170px; }
}
@media (max-width: 560px) {
  .price-grid, .rules__grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 1.6rem 2rem; }
  .contact-form { grid-template-columns: 1fr; }
  .gphoto.wide { grid-column: span 1; }
  .gphoto.tall { grid-row: span 1; }
  .gallery__grid { grid-auto-rows: 150px; }
  .btn { width: 100%; justify-content: center; }
  .hero__actions { width: 100%; }
}