:root {
  --void: #060607;
  --ink: #0e0f12;
  --mist: rgba(245, 246, 248, 0.92);
  --mist-dim: rgba(200, 204, 212, 0.78);
  --line: rgba(255, 255, 255, 0.08);
  --accent: #6ee7c5;
  --accent-dim: rgba(110, 231, 197, 0.35);
  --warn: #e85d4a;
  --silver: #b8bcc6;
  --gold-window: rgba(255, 210, 150, 0.35);
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-ui: "Outfit", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --calm-fracture: 0;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  min-height: 100svh;
  font-family: var(--font-ui);
  font-weight: 300;
  color: var(--mist);
  background: var(--void);
  overflow-x: hidden;
  transition: background-color 1.2s var(--ease-out), color 0.8s ease;
  touch-action: manipulation;
}

body[data-mood="calm"] {
  /* Plynulejší spodok — predtým vznikal „horizont“ medzi #12141a a #08080a. */
  background: radial-gradient(
    135% 95% at 50% 102%,
    #15171d 0%,
    #101116 22%,
    #0a0a0e 48%,
    #060607 100%
  );
}

body[data-mood="threat"] {
  background: radial-gradient(100% 60% at 50% 0%, #1a0c0c 0%, #060508 50%, #040406 100%);
  color: rgba(230, 228, 235, 0.88);
}

body[data-mood="tech"] {
  background: linear-gradient(165deg, #050608 0%, #0a1218 40%, #06080a 100%);
}

body[data-mood="core"] {
  background: radial-gradient(ellipse 80% 70% at 50% 45%, #0f1820 0%, #050608 65%);
}

body[data-mood="trust"] {
  background: linear-gradient(180deg, #0a0b0d 0%, #111318 50%, #0c0d10 100%);
  color: rgba(220, 222, 228, 0.95);
}

body[data-mood="life"] {
  background: radial-gradient(90% 70% at 20% 80%, rgba(90, 60, 40, 0.25), transparent),
    linear-gradient(180deg, #080706 0%, #0f0e0c 100%);
}

body[data-mood="activate"] {
  background: #060708;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  /* Pod príbehom — inak ide zrno NAD celým mainom a domček pôsobí „za sklom“. */
  z-index: 5;
  opacity: 0.07;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.ambient {
  position: fixed;
  inset: -20%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
  background: radial-gradient(circle at 30% 40%, rgba(110, 231, 197, 0.08), transparent 42%),
    radial-gradient(circle at 70% 60%, rgba(120, 140, 255, 0.05), transparent 40%);
  transition: opacity 1.4s var(--ease-out), transform 1.4s var(--ease-out);
}

body[data-mood="threat"] .ambient {
  opacity: 0.35;
  background: radial-gradient(circle at 50% 20%, rgba(232, 93, 74, 0.12), transparent 35%),
    radial-gradient(circle at 60% 80%, rgba(40, 20, 30, 0.4), transparent 50%);
}

body[data-mood="life"] .ambient {
  opacity: 0.4;
  background: radial-gradient(circle at 70% 70%, rgba(255, 190, 120, 0.08), transparent 45%);
}

.smoke-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.act--threat {
  overflow: hidden;
  --mist-reveal: 0;
  --threat-grit: 0;
  --smoke-loop-alpha: 1;
}

.act--threat .threat-smoke-video {
  position: absolute;
  inset: -5%;
  width: 110%;
  height: 110%;
  left: -5%;
  top: -5%;
  z-index: 1;
  pointer-events: none;
  object-fit: cover;
  opacity: calc(var(--mist-reveal, 0) * 0.94 * var(--smoke-loop-alpha, 1));
  mix-blend-mode: soft-light;
  filter: saturate(0.9) contrast(1.06) brightness(0.92);
}

.act--threat .act__bg--pulse {
  background:
    /* Zlom medzi vstupom a hrozbou: krátky nábeh z farby „void“ ako na calm, potom tepelný tón — bez nového „tiena“. */
    linear-gradient(180deg, #08080c 0%, rgba(8, 8, 12, 0) 22%, transparent 36%),
    radial-gradient(ellipse 85% 65% at 50% 32%, rgba(160, 42, 48, 0.14), transparent 48%),
    radial-gradient(circle at 50% 30%, rgba(232, 93, 74, 0.1), transparent 42%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 80px,
      rgba(255, 255, 255, 0.022) 80px,
      rgba(255, 255, 255, 0.022) 81px
    );
  animation: vignette 8s ease-in-out infinite alternate;
}

.act--threat .mist-flow {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: calc(var(--mist-reveal, 0) * 0.4);
  overflow: hidden;
  isolation: isolate;
  /* Len mäkká maska dymu (filmové pero) — bez extra vrstiev / stmavenia scény. */
  mask-image: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 0, 0, 0.28) 7%,
    rgba(0, 0, 0, 0.82) 14%,
    #000 22%,
    #000 78%,
    rgba(0, 0, 0, 0.82) 86%,
    rgba(0, 0, 0, 0.28) 93%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 0, 0, 0.28) 7%,
    rgba(0, 0, 0, 0.82) 14%,
    #000 22%,
    #000 78%,
    rgba(0, 0, 0, 0.82) 86%,
    rgba(0, 0, 0, 0.28) 93%,
    transparent 100%
  );
  mask-size: 100% 100%;
  -webkit-mask-size: 100% 100%;
}

.act--threat .mist-flow__carrier {
  position: absolute;
  inset: -18%;
  width: 136%;
  height: 136%;
  left: -18%;
  top: -18%;
  will-change: transform;
}

.act--threat .mist-flow__swirl {
  position: absolute;
  inset: -10%;
  width: 120%;
  height: 120%;
  left: -10%;
  top: -10%;
  will-change: transform;
  animation: mist-stream-fast 6.4s linear infinite;
}

@keyframes mist-stream-fast {
  0% {
    transform: translate3d(-10%, 4%, 0) rotate(0deg);
  }
  25% {
    transform: translate3d(14%, -5%, 0) rotate(0.35deg);
  }
  50% {
    transform: translate3d(8%, 9%, 0) rotate(0deg);
  }
  75% {
    transform: translate3d(-5%, -6%, 0) rotate(-0.3deg);
  }
  100% {
    transform: translate3d(-10%, 4%, 0) rotate(0deg);
  }
}

.act--threat .mist-flow__volume {
  position: absolute;
  inset: -18%;
  pointer-events: none;
  border-radius: 50%;
  background:
    radial-gradient(ellipse 78% 50% at 34% 44%, rgba(42, 32, 36, 0.62), rgba(28, 22, 26, 0.38) 40%, transparent 64%),
    radial-gradient(ellipse 68% 48% at 68% 56%, rgba(32, 26, 34, 0.55), rgba(22, 18, 26, 0.32) 44%, transparent 62%),
    radial-gradient(ellipse 55% 40% at 52% 38%, rgba(24, 28, 40, 0.28), transparent 58%);
  filter: url(#ftv-smoke-warp);
  opacity: 0.9;
  mix-blend-mode: normal;
  animation: smoke-drift-v 12s linear infinite;
}

.act--threat .mist-flow__sheet {
  position: absolute;
  border-radius: 50%;
  mix-blend-mode: normal;
  will-change: transform;
}

.act--threat .mist-flow__sheet--a {
  width: 110%;
  height: 62%;
  left: -18%;
  top: -8%;
  background: radial-gradient(
    ellipse 48% 44% at 46% 48%,
    rgba(38, 30, 34, 0.58) 0%,
    rgba(26, 22, 28, 0.4) 36%,
    rgba(18, 16, 22, 0.16) 62%,
    transparent 76%
  );
  filter: blur(52px);
  opacity: 0.85;
  animation: smoke-drift-a 7.2s linear infinite;
}

.act--threat .mist-flow__sheet--b {
  width: 118%;
  height: 70%;
  left: -28%;
  top: 4%;
  background: radial-gradient(
    ellipse 44% 38% at 56% 46%,
    rgba(34, 28, 32, 0.52) 0%,
    rgba(22, 20, 28, 0.34) 40%,
    rgba(14, 14, 20, 0.12) 66%,
    transparent 78%
  );
  filter: blur(64px);
  opacity: 0.78;
  animation: smoke-drift-b 8.5s linear infinite;
  animation-delay: -2.1s;
}

.act--threat .mist-flow__sheet--c {
  width: 95%;
  height: 52%;
  right: -32%;
  top: 18%;
  background: radial-gradient(
    ellipse 40% 34% at 40% 52%,
    rgba(36, 30, 38, 0.48) 0%,
    rgba(24, 22, 30, 0.3) 42%,
    transparent 70%
  );
  filter: blur(48px);
  opacity: 0.72;
  animation: smoke-drift-c 7.8s linear infinite;
  animation-delay: -3.6s;
}

.act--threat .mist-flow__sheet--d {
  width: 88%;
  height: 48%;
  left: 8%;
  bottom: -12%;
  background: radial-gradient(
    ellipse 46% 40% at 52% 42%,
    rgba(44, 34, 38, 0.42) 0%,
    rgba(26, 22, 28, 0.22) 50%,
    transparent 74%
  );
  filter: blur(58px);
  opacity: 0.65;
  animation: smoke-drift-d 6.4s linear infinite;
  animation-delay: -1.1s;
}

@keyframes smoke-drift-v {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.9;
  }
  33% {
    transform: translate3d(-10vw, 7vh, 0) scale(1.05);
    opacity: 0.96;
  }
  66% {
    transform: translate3d(6vw, -5vh, 0) scale(1.08);
    opacity: 0.92;
  }
}

@keyframes smoke-drift-a {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  33% {
    transform: translate3d(16vw, 8vh, 0) scale(1.14);
  }
  66% {
    transform: translate3d(-10vw, 14vh, 0) scale(1.06);
  }
}

@keyframes smoke-drift-b {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1.02);
  }
  40% {
    transform: translate3d(22vw, -10vh, 0) scale(1.18);
  }
  70% {
    transform: translate3d(-14vw, 12vh, 0) scale(1.04);
  }
}

@keyframes smoke-drift-c {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(-20vw, 16vh, 0) scale(1.2);
  }
}

@keyframes smoke-drift-d {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1.05);
  }
  45% {
    transform: translate3d(12vw, -18vh, 0) scale(1.12);
  }
  80% {
    transform: translate3d(26vw, 6vh, 0) scale(0.98);
  }
}

@keyframes film-unease {
  0%,
  100% {
    transform: translateX(0) translateZ(0);
    text-shadow: 0 0 0 transparent;
  }
  22% {
    transform: translateX(0.5px) translateZ(0);
    text-shadow: 0.04em 0 0 rgba(200, 72, 64, 0.12);
  }
  48% {
    transform: translateX(-0.45px) translateZ(0);
    text-shadow: -0.035em 0 0 rgba(70, 110, 160, 0.08);
  }
  71% {
    transform: translateX(0.35px) translateZ(0);
    text-shadow: 0.02em 0 0 rgba(180, 90, 80, 0.09);
  }
}

@media (prefers-reduced-motion: reduce) {
  .act--threat .threat-smoke-video {
    display: none;
  }

  .act--threat .mist-flow__swirl,
  .act--threat .mist-flow__volume,
  .act--threat .mist-flow__sheet {
    animation: none !important;
  }

  .act--threat .mist-flow {
    opacity: calc(var(--mist-reveal, 0) * 0.55);
  }

  .act--threat .film-quote {
    animation: none !important;
  }

  .act--calm .house-scene__glow {
    animation-duration: 6s !important;
  }

  .act--calm .house-scene__scan {
    animation-duration: 4.5s !important;
  }
}

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(1.1rem + env(safe-area-inset-top, 0px)) max(1.25rem, env(safe-area-inset-right, 0px)) 1.1rem
    max(1.25rem, env(safe-area-inset-left, 0px));
  background: linear-gradient(180deg, rgba(4, 5, 7, 0.72), rgba(4, 5, 7, 0));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.mark {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.mark__logo {
  height: clamp(28px, 4.5vw, 40px);
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.35));
}

.chapters {
  display: none;
}

@media (min-width: 960px) {
  .chapters {
    display: block;
  }
}

.chapters__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.chapters__list button {
  position: relative;
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: transform 0.35s var(--ease-out), background 0.35s ease;
}

.chapters__list button span {
  position: absolute;
  left: 50%;
  top: 100%;
  margin-top: 8px;
  transform: translateX(-50%) translateY(4px);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  color: rgba(230, 232, 238, 0.9);
}

.chapters__list button:hover span,
.chapters__list button:focus-visible span {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.chapters__list button.is-active {
  background: rgba(110, 231, 197, 0.95);
  transform: scale(1.35);
  box-shadow: 0 0 16px rgba(110, 231, 197, 0.45);
}

.menu-btn {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
  color: rgba(248, 248, 252, 0.95);
}

.menu-btn span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s ease;
}

.menu-btn[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-btn[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 35;
  padding: calc(5.5rem + env(safe-area-inset-top, 0px)) max(1.5rem, env(safe-area-inset-right, 0px))
    max(2rem, env(safe-area-inset-bottom, 0px)) max(1.5rem, env(safe-area-inset-left, 0px));
  background: rgba(4, 5, 7, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.drawer[hidden] {
  display: none;
}

.drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 320px;
}

.drawer__nav a {
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 0.2s ease;
}

.drawer__nav a:hover {
  color: var(--accent);
}

.narrative {
  position: relative;
  z-index: 6;
}

.act {
  position: relative;
  min-height: 100dvh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(4rem, 10vw, 6rem) max(1.25rem, env(safe-area-inset-right, 0px))
    clamp(3rem, 8vw, 5rem) max(1.25rem, env(safe-area-inset-left, 0px));
  isolation: isolate;
}

/* Na vstupe len horný inset — dolný stmavil spodok domčeka. Hrozba ostáva obojstranne. */
.act--calm {
  box-shadow: inset 0 40px 52px -12px rgba(0, 0, 0, 0.58);
}

.act--threat {
  box-shadow:
    inset 0 40px 52px -12px rgba(0, 0, 0, 0.58),
    inset 0 -40px 52px -12px rgba(0, 0, 0, 0.58);
}

/* Domček nad ::after aj nad .act__inner (inner je neskôr v DOM pri rovnakom z-index). */
.act--calm .act__bg {
  z-index: 3;
}

.act--calm .act__inner {
  position: relative;
  z-index: 2;
}

/* Pri prekrytí (napr. margin) nesmie nasledujúci slide kresliť cez vstup. */
#vstup {
  z-index: 3;
}

.act--calm::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    188deg,
    rgba(24, 18, 28, 0) 0%,
    rgba(20, 14, 26, calc(var(--calm-fracture, 0) * 0.38)) 48%,
    rgba(10, 8, 18, calc(var(--calm-fracture, 0) * 0.62)) 100%
  );
}

.act--calm .house-scene__glow {
  animation-duration: calc(6.2s - var(--calm-fracture, 0) * 2.4s);
}

.act--calm .house-scene__scan {
  animation-duration: calc(4.6s - var(--calm-fracture, 0) * 1.7s);
  opacity: calc(0.42 + var(--calm-fracture, 0) * 0.38);
}

.act--calm .house-scene__svg {
  opacity: calc(1 - var(--calm-fracture, 0) * 0.12);
  filter: brightness(1.1) contrast(1.08) drop-shadow(0 4px 14px rgba(0, 0, 0, 0.28));
}

.act--calm .headline--hero {
  letter-spacing: calc(-0.02em + var(--calm-fracture, 0) * 0.035em);
  transition: letter-spacing 0.15s ease-out;
}

.act--calm .subline {
  opacity: calc(1 - var(--calm-fracture, 0) * 0.22);
}

.act--threat .act__inner {
  filter: saturate(calc(0.92 + var(--threat-grit, 0) * 0.08)) contrast(calc(1 + var(--threat-grit, 0) * 0.07));
}

.act--threat .film-quote {
  animation: film-unease 6.8s ease-in-out infinite;
}

.act--threat .film-note {
  opacity: calc(0.88 - var(--threat-grit, 0) * 0.12);
}

.act__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.act__bg--house {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0.9;
}

.act--calm .act__bg--house {
  opacity: 1;
}

.house-scene {
  position: relative;
  width: min(520px, 90vw);
  aspect-ratio: 4 / 3;
  margin-bottom: -8%;
}

.house-scene__glow {
  position: absolute;
  inset: 20% 25% 30%;
  background: radial-gradient(ellipse, var(--gold-window), transparent 70%);
  filter: blur(28px);
  animation: breathe 6s ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    opacity: 0.55;
    transform: scale(1);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.05);
  }
}

.house-scene__scan {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  animation: scanline 4.5s linear infinite;
  opacity: 0.5;
}

@keyframes scanline {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  10% {
    opacity: 0.7;
  }
  90% {
    opacity: 0.7;
  }
  100% {
    transform: translateY(180px);
    opacity: 0;
  }
}

.house-scene__svg {
  width: 100%;
  height: auto;
  opacity: 0.85;
  /* Silný drop-shadow pod domčekom vyzeral ako druhý dom / „odraz“ na podlahe. */
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.35));
}

.act__bg-photo {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.act__bg-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.03);
}

.act__bg-photo__veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.act__bg-photo__veil--life {
  background: linear-gradient(90deg, rgba(6, 5, 4, 0.88) 0%, rgba(6, 5, 4, 0.45) 55%, rgba(6, 5, 4, 0.2) 100%),
    linear-gradient(180deg, rgba(8, 7, 5, 0.3) 0%, rgba(6, 5, 4, 0.85) 100%);
}

.act__bg-photo--life img {
  object-position: 70% center;
  filter: saturate(0.95) brightness(0.85);
}

.act__bg--tech-atmo {
  pointer-events: none;
  overflow: hidden;
}

.act__bg--tech-atmo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  filter: saturate(0.85) brightness(0.5);
}

.act__bg-photo__veil--tech {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0.55) 0%, rgba(5, 7, 10, 0.92) 100%);
}

.act__bg--pulse {
  background: radial-gradient(circle at 50% 30%, rgba(232, 93, 74, 0.08), transparent 40%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 80px,
      rgba(255, 255, 255, 0.02) 80px,
      rgba(255, 255, 255, 0.02) 81px
    );
  animation: vignette 8s ease-in-out infinite alternate;
}

@keyframes vignette {
  from {
    filter: brightness(0.95);
  }
  to {
    filter: brightness(1.05);
  }
}

.act__bg--warm {
  background: radial-gradient(ellipse at 50% 100%, rgba(80, 50, 35, 0.2), transparent 55%);
}

.act__inner {
  position: relative;
  z-index: 2;
  width: min(720px, 100%);
}

.act__inner--narrow {
  max-width: 560px;
}

.act__inner--center {
  text-align: center;
  margin: 0 auto;
}

.act__inner--life {
  max-width: 560px;
  margin-left: 0;
  margin-right: auto;
}

@media (min-width: 900px) {
  .act__inner--life {
    margin-left: 4%;
  }
}

.kicker {
  margin: 0 0 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mist-dim);
  font-weight: 400;
}

.kicker--warn {
  color: rgba(255, 160, 150, 0.75);
}

.kicker--silver {
  color: var(--silver);
}

.headline {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.02em;
}

.headline--hero {
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  max-width: 14ch;
}

.headline--section {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
}

.headline--tight {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
}

.headline--quiet {
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  color: rgba(240, 241, 245, 0.92);
}

.headline--human {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  font-style: italic;
  font-weight: 500;
}

.subline {
  margin: 1.5rem 0 0;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--mist-dim);
  max-width: 36ch;
  line-height: 1.6;
}

.subline--dim {
  margin-top: 1.25rem;
  opacity: 0.85;
}

.scroll-hint {
  margin-top: 3.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.scroll-hint__line {
  width: 1px;
  height: 48px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.85);
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

.film-quote {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-style: italic;
  font-weight: 500;
  line-height: 1.35;
  color: rgba(248, 246, 244, 0.9);
}

.film-note {
  margin: 2rem 0 0;
  font-size: 0.95rem;
  color: rgba(180, 182, 190, 0.85);
  line-height: 1.65;
}

.layers-intro {
  position: absolute;
  top: clamp(4rem, 10vw, 5rem);
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, calc(100% - 2.5rem));
  text-align: left;
  z-index: 2;
}

.act--tech {
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding-top: clamp(7rem, 14vw, 9rem);
  min-height: 110dvh;
}

.act--tech::before {
  content: "";
  position: absolute;
  inset: 8% -12% 2%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(45% 40% at 20% 40%, rgba(110, 231, 197, 0.08), transparent 68%),
    radial-gradient(38% 34% at 75% 62%, rgba(110, 231, 197, 0.05), transparent 72%);
  filter: blur(10px);
  animation: techAmbientDrift 18s ease-in-out infinite alternate;
}

.layers-rail {
  display: flex;
  justify-content: center;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: clamp(8rem, 18vh, 10rem) 1.25rem 2rem;
  margin: 0 -1.25rem;
  mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
  -webkit-overflow-scrolling: touch;
}

.layers-rail:focus {
  outline: none;
}

.layers-rail:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent-dim);
}

.layer-card {
  flex: 0 0 min(82vw, 360px);
  scroll-snap-align: center;
  padding: 0 0 1.75rem;
  border-radius: 1.25rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0.82;
  transform: scale(0.985);
  transform-origin: center;
  transition:
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 260ms ease,
    border-color 260ms ease,
    box-shadow 260ms ease,
    background 260ms ease;
}

.layer-card__media {
  margin: 0;
  padding: 1rem 1rem 0;
  position: relative;
  z-index: 1;
}

.layer-card__media::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 42%;
  border-radius: 0 0 0.75rem 0.75rem;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0) 0%, rgba(5, 7, 10, 0.58) 100%);
  pointer-events: none;
}

.layer-card__media img {
  width: 100%;
  height: clamp(210px, 27vw, 230px);
  object-fit: cover;
  object-position: center;
  border-radius: 0.75rem;
  background: radial-gradient(ellipse at 50% 80%, rgba(20, 28, 36, 0.9), rgba(6, 8, 10, 0.95));
}

.layer-card .layer-card__tag,
.layer-card .layer-card__title,
.layer-card .layer-card__text {
  padding-left: 1.75rem;
  padding-right: 1.75rem;
  text-align: center;
}

.layer-card .layer-card__tag {
  margin-top: 1.25rem;
}

.layer-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0%, rgba(110, 231, 197, 0.12), transparent 45%);
  pointer-events: none;
}

.layer-card.is-featured {
  opacity: 1;
  transform: scale(1.03);
  border-color: rgba(110, 231, 197, 0.45);
  box-shadow:
    0 34px 76px rgba(0, 0, 0, 0.44),
    0 0 0 1px rgba(110, 231, 197, 0.22);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03));
}

@media (hover: hover) and (pointer: fine) {
  .layer-card:hover,
  .layer-card:focus-within {
    transform: translateY(-4px) scale(1.01);
    opacity: 0.95;
    border-color: rgba(110, 231, 197, 0.32);
    box-shadow:
      0 32px 72px rgba(0, 0, 0, 0.45),
      0 0 28px rgba(110, 231, 197, 0.16);
  }

  .layer-card.is-featured:hover,
  .layer-card.is-featured:focus-within {
    transform: translateY(-4px) scale(1.035);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .act--tech::before {
    animation: none;
  }

  .layer-card {
    transition: none;
  }
}

@keyframes techAmbientDrift {
  0% {
    transform: translate3d(-6px, -3px, 0);
    opacity: 0.78;
  }
  100% {
    transform: translate3d(6px, 4px, 0);
    opacity: 1;
  }
}

.layer-card__tag {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.layer-card__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  margin: 0 0 0.75rem;
  line-height: 1.2;
  min-height: calc(1.2em * 2);
  display: grid;
  align-content: end;
}

.layer-card__text {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: var(--mist-dim);
  line-height: 1.55;
  min-height: calc(1.55em * 3);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.act--core {
  min-height: 115dvh;
}

.core-visual {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 1;
}

.act--core .act__inner {
  z-index: 2;
}

.core-visual__hub {
  width: min(48vw, 260px);
  height: min(48vw, 260px);
  border-radius: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, rgba(20, 28, 36, 0.75), rgba(8, 10, 14, 0.92));
  box-shadow: 0 0 80px rgba(110, 231, 197, 0.08), inset 0 0 40px rgba(0, 0, 0, 0.5);
  position: relative;
  animation: hubFloat 7s ease-in-out infinite;
  overflow: visible;
}

@keyframes hubFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.core-visual__grid {
  position: absolute;
  inset: 12%;
  border-radius: 0.75rem;
  background-image: linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.28;
  z-index: 1;
}

.core-visual__device {
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  width: min(130%, 340px);
  height: auto;
  z-index: 2;
  pointer-events: none;
  filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.55));
}

.core-visual__orbit {
  position: absolute;
  border: 1px solid rgba(110, 231, 197, 0.15);
  border-radius: 50%;
  animation: spin 24s linear infinite;
}

.core-visual__orbit--a {
  width: min(58vw, 320px);
  height: min(58vw, 320px);
}

.core-visual__orbit--b {
  width: min(78vw, 420px);
  height: min(78vw, 420px);
  animation-duration: 38s;
  animation-direction: reverse;
  opacity: 0.5;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.core-visual__node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 20px var(--accent-dim);
  animation: nodePulse 3s ease-in-out infinite;
}

.core-visual__node--1 {
  top: 28%;
  left: 22%;
  animation-delay: 0s;
}

.core-visual__node--2 {
  top: 38%;
  right: 18%;
  animation-delay: 0.4s;
}

.core-visual__node--3 {
  bottom: 30%;
  left: 28%;
  animation-delay: 0.8s;
}

.core-visual__node--4 {
  bottom: 22%;
  right: 24%;
  animation-delay: 1.2s;
}

@keyframes nodePulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

.trust-block {
  max-width: 520px;
}

.trust-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 1rem;
  color: rgba(200, 204, 214, 0.92);
  line-height: 1.5;
}

.trust-list strong {
  font-weight: 500;
  color: #eef0f4;
}

.trust-aside {
  margin: 2rem 0 0;
  font-size: 0.85rem;
  color: rgba(160, 165, 176, 0.9);
}

.trust-badge {
  margin-top: 2rem;
  max-width: 280px;
  opacity: 0.92;
}

.life-pillars {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
}

.life-pillars li {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(230, 225, 218, 0.85);
}

.activate-grid {
  width: min(1000px, 100%);
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 880px) {
  .activate-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }
}

.activate-lead {
  margin: 1rem 0 0;
  color: var(--mist-dim);
  line-height: 1.65;
  font-size: 0.98rem;
}

.activate-visual {
  margin: 0 0 1.5rem;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.activate-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: center;
  display: block;
}

.smart-form {
  position: relative;
  border-radius: 1.25rem;
  padding: 1.75rem;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.smart-form__track {
  position: relative;
  min-height: 200px;
}

.smart-form__step {
  display: none;
  animation: fadeStep 0.5s var(--ease-out) both;
}

.smart-form__step.is-active {
  display: block;
}

@keyframes fadeStep {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.smart-form__q {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
}

.choice-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.choice {
  flex: 1;
  min-width: 120px;
  cursor: pointer;
}

.choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice span {
  display: block;
  text-align: center;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.choice input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.choice input:checked + span {
  border-color: rgba(110, 231, 197, 0.5);
  background: rgba(110, 231, 197, 0.08);
  box-shadow: 0 0 24px rgba(110, 231, 197, 0.12);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  cursor: pointer;
}

.tag input {
  position: absolute;
  opacity: 0;
}

.tag span {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  transition: 0.2s ease;
}

.tag input:checked + span {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.field {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.field__label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(180, 184, 194, 0.9);
}

.field input,
.field textarea {
  width: 100%;
  border-radius: 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(4, 5, 8, 0.65);
  color: #fff;
  padding: 0.75rem 1rem;
  font-family: var(--font-ui);
  font-weight: 300;
}

.field textarea {
  resize: vertical;
  min-height: 88px;
}

.smart-form__bar {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.progress {
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin-bottom: 1rem;
}

.progress__fill {
  height: 100%;
  width: 25%;
  background: linear-gradient(90deg, rgba(110, 231, 197, 0.2), var(--accent));
  border-radius: inherit;
  transition: width 0.45s var(--ease-out);
}

.smart-form__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(240, 242, 246, 0.9);
}

.btn--primary {
  background: linear-gradient(135deg, #8af0d4, #4ad4ae);
  color: #051210;
  font-weight: 500;
  box-shadow: 0 0 28px rgba(110, 231, 197, 0.25);
}

.btn--primary:hover:not(:disabled) {
  transform: translateY(-1px);
}

.form-success {
  position: absolute;
  inset: 1.75rem;
  display: grid;
  place-content: center;
  text-align: center;
  background: rgba(6, 8, 10, 0.92);
  border-radius: 1rem;
  padding: 2rem;
}

.form-success[hidden] {
  display: none;
}

.form-success__title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0 0 0.5rem;
}

.foot {
  position: relative;
  z-index: 2;
  padding: 2rem max(1.25rem, env(safe-area-inset-left, 0px)) max(3rem, calc(2rem + env(safe-area-inset-bottom, 0px)))
    max(1.25rem, env(safe-area-inset-right, 0px));
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(150, 155, 168, 0.85);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.foot__brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.foot__logo {
  height: 28px;
  width: auto;
  object-fit: contain;
  opacity: 0.88;
}

.foot__tag {
  letter-spacing: 0.12em;
}

.foot__up {
  color: var(--accent);
}

/* Úzke displeje a telefóny: safe area, výkon, čitateľné gestá */
@media (max-width: 719px) {
  .grain {
    opacity: 0.045;
  }

  .ambient {
    opacity: 0.42;
  }

  .top-bar {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  .drawer {
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }

  .act--tech {
    min-height: min(110dvh, calc(100svh + 4rem));
    padding-top: clamp(5.5rem, 16vw, 7rem);
  }

  /* Žiadne animované pozadie — mobil nestíha blur + drift */
  .act--tech::before {
    animation: none !important;
    filter: blur(6px);
    inset: 10% -8% 4%;
    opacity: 0.75;
    transform: none !important;
  }

  .layers-intro {
    width: min(
      900px,
      calc(100% - 2.5rem - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px))
    );
  }

  .layers-rail {
    touch-action: pan-x pan-y pinch-zoom;
    scroll-padding-inline: max(1.25rem, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
    padding-top: clamp(7rem, 22vw, 9rem);
    padding-left: max(0.75rem, env(safe-area-inset-left, 0px));
    padding-right: max(0.75rem, env(safe-area-inset-right, 0px));
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
    gap: 0.75rem;
    margin-left: calc(-1 * max(1.25rem, env(safe-area-inset-left, 0px)));
    margin-right: calc(-1 * max(1.25rem, env(safe-area-inset-right, 0px)));
  }

  .layer-card {
    flex: 0 0 min(88vw, 400px);
    transform: scale(0.992);
    opacity: 0.9;
    transition: none !important;
  }

  .layer-card.is-featured {
    transform: scale(1.014);
    box-shadow:
      0 28px 64px rgba(0, 0, 0, 0.42),
      0 0 0 1px rgba(110, 231, 197, 0.2);
  }

  .layer-card__media img {
    height: clamp(200px, 42vw, 220px);
  }

  .act--threat .mist-flow__sheet--a {
    filter: blur(38px);
  }

  .act--threat .mist-flow__sheet--b {
    filter: blur(44px);
  }

  .act--threat .mist-flow__sheet--c {
    filter: blur(34px);
  }

  .act--threat .mist-flow__sheet--d {
    filter: blur(40px);
  }

  /* Výkon: statický „film“ namiesto nekonečných slučiek */
  .scroll-hint__line {
    animation: none !important;
    opacity: 0.72;
  }

  .act--calm .house-scene__glow,
  .act--calm .house-scene__scan {
    animation: none !important;
  }

  .act--threat .act__bg--pulse {
    animation: none !important;
  }

  .act--threat .film-quote {
    animation: none !important;
  }

  .act--threat .mist-flow__swirl,
  .act--threat .mist-flow__volume,
  .act--threat .mist-flow__sheet {
    animation: none !important;
  }

  .act--threat .mist-flow__volume {
    filter: none;
    opacity: 0.38;
  }

  .act--threat .mist-flow__carrier,
  .act--threat .mist-flow__swirl {
    will-change: auto;
  }

  .act--threat .threat-smoke-video {
    display: none !important;
  }

  .core-visual__hub,
  .core-visual__orbit,
  .core-visual__node {
    animation: none !important;
  }

  .smart-form__step.is-active {
    animation: none !important;
  }

  .smart-form {
    padding: 1.75rem max(1.25rem, env(safe-area-inset-right, 0px)) max(1.75rem, env(safe-area-inset-bottom, 0px))
      max(1.25rem, env(safe-area-inset-left, 0px));
  }

  .activate-grid {
    gap: 2rem;
  }
}

/* Čisto dotykové zariadenia: žiadne „hover“ stavy, jemnejší posun pri ťuknutí */
@media (hover: none) and (pointer: coarse) {
  .layer-card:active {
    opacity: 0.96;
    transform: scale(0.996);
    transition-duration: 120ms;
  }

  .layer-card.is-featured:active {
    transform: scale(1.008);
  }

  .btn--primary:active:not(:disabled) {
    transform: scale(0.98);
    opacity: 0.92;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}