:root {
    --bg-color: #050507;
    --text-color: #f5f5f7;
    --accent-color: #4ae1ff;
    --accent-dim: rgba(74, 225, 255, 0.4);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}

body::-webkit-scrollbar {
    display: none;
}

/* ============================================
   PRELOADER — Cinematic High-End
   ============================================ */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #010305;
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Wipe-out: slide up to reveal page */
#preloader.hide {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
}

/* Scan lines overlay for cinematic texture */
#preloader::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(255,255,255,0.015) 2px,
        rgba(255,255,255,0.015) 4px
    );
    pointer-events: none;
    z-index: 2;
}

/* Subtle ambient cyan glow */
#preloader::after {
    content: '';
    position: absolute;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74,225,255,0.04) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
    animation: loaderGlowPulse 3s ease-in-out infinite;
}

@keyframes loaderGlowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50%       { opacity: 1;   transform: translate(-50%, -50%) scale(1.15); }
}

.loader-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 90vw;
    max-width: 500px;
}

/* Logo image */
.loader-logo {
    width: 160px;
    height: auto;
    margin-bottom: 3.5rem;
    opacity: 0;
    animation: loaderLogoIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
    filter: drop-shadow(0 0 20px rgba(74, 225, 255, 0.35));
}

@keyframes loaderLogoIn {
    from { opacity: 0; transform: translateY(16px); filter: drop-shadow(0 0 0px rgba(74,225,255,0)); }
    to   { opacity: 1; transform: translateY(0);    filter: drop-shadow(0 0 20px rgba(74,225,255,0.35)); }
}

/* Progress row: percentage + bar */
.loader-progress-row {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 14px;
    opacity: 0;
    animation: loaderFadeIn 0.8s ease 0.7s forwards;
}

@keyframes loaderFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.loader-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.loader-label {
    font-family: 'Poppins', sans-serif;
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(74, 225, 255, 0.7);
}

.loading-text {
    font-family: 'Poppins', sans-serif;
    font-size: 0.7rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.4);
    font-variant-numeric: tabular-nums;
}

/* Track */
.progress-bar {
    width: 100%;
    height: 1px;
    background: rgba(255,255,255,0.08);
    position: relative;
    overflow: visible;
}

/* Glowing fill */
.progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, rgba(74,225,255,0.5), #4ae1ff);
    transition: width 0.15s linear;
    box-shadow: 0 0 8px rgba(74,225,255,0.8), 0 0 20px rgba(74,225,255,0.3);
}

/* Glowing dot at the tip */
.progress::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 8px #4ae1ff, 0 0 16px rgba(74,225,255,0.6);
}


/* Scroll container and canvas */
#scroll-container {
    height: 600vh;
    position: relative;
}

.canvas-container {
    position: sticky;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: #050507;
}

canvas {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    transform-origin: center center;
}

.overlay-content {
    position: relative;
    z-index: 10;
}

.spacer {
    height: 100%;
}

/* ============================================
   Hero Text Overlay — Cinematic Premium
   ============================================ */
.hero-text-overlay {
    position: absolute;
    top: 50%;
    left: 62%;
    transform: translate(-50%, -50%);
    width: max-content;
    max-width: 80vw;
    z-index: 10;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    opacity: 1; /* GSAP will fade this out */
}

/* Eyebrow — glowing label above headline */
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(74, 225, 255, 0.9);
    text-shadow: 0 0 20px rgba(74, 225, 255, 0.4);
}

.hero-eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ae1ff;
    box-shadow: 0 0 12px rgba(74, 225, 255, 0.8),
                0 0 30px rgba(74, 225, 255, 0.3);
    animation: heroDotPulse 2.5s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes heroDotPulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 12px rgba(74, 225, 255, 0.8), 0 0 30px rgba(74, 225, 255, 0.3); }
    50%      { opacity: 0.5; transform: scale(0.6); box-shadow: 0 0 6px rgba(74, 225, 255, 0.4), 0 0 15px rgba(74, 225, 255, 0.15); }
}

/* Headline — the hero moment */
.hero-headline {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2.2rem, 4.5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.05;
    color: #ffffff;
    text-transform: none;
    letter-spacing: -0.03em;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.7),
                 0 0 80px rgba(0, 0, 0, 0.3);
}

/* Each line of the headline */
.hero-line {
    display: block;
    overflow: hidden;
}

/* Individual words */
.hero-word {
    display: inline-block;
    margin-right: 0.25em;
    will-change: transform, opacity;
}

.hero-word:last-child {
    margin-right: 0;
}

/* Accent word — animated gradient text */
.hero-word--accent {
    background: linear-gradient(
        135deg,
        #4ae1ff 0%,
        #c084fc 30%,
        #4ae1ff 60%,
        #f5f5f7 100%
    );
    background-size: 300% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: heroAccentShine 5s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(74, 225, 255, 0.3));
}

@keyframes heroAccentShine {
    0%, 100% { background-position: 0% center; }
    50%      { background-position: 300% center; }
}

/* Highlight words — warm accent for "bezkonkurenční ceny" */
.hero-word--highlight {
    background: linear-gradient(
        135deg,
        #ffffff 0%,
        #ffcc00 40%,
        #ffffff 80%
    );
    background-size: 250% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: heroHighlightShine 6s ease-in-out infinite;
    filter: drop-shadow(0 0 15px rgba(255, 204, 0, 0.2));
}

@keyframes heroHighlightShine {
    0%, 100% { background-position: 0% center; }
    50%      { background-position: 250% center; }
}

/* ============================================
   Hero Mobile Responsive
   ============================================ */
@media (max-width: 768px) {
    canvas {
        object-fit: contain;
        object-position: center 25%;
    }

    .hero-text-overlay {
        position: absolute;
        left: 50%;
        right: auto;
        width: 90vw;
        max-width: none;
        top: 75%;
        bottom: auto;
        transform: translate(-50%, -50%);
        text-align: center;
        align-items: center;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        z-index: 20;
    }

    .hero-headline {
        font-size: clamp(1.8rem, 7vw, 2.8rem);
        text-align: center;
    }

    .hero-eyebrow {
        font-size: 0.65rem;
        letter-spacing: 0.18em;
        justify-content: center;
    }

    .hero-eyebrow-dot {
        width: 6px;
        height: 6px;
    }

    .mobile-anim {
        display: block;
        margin-bottom: 0.15rem;
    }
}

/* Border Glow Card Styles */
.border-glow-card {
  --edge-proximity: 0;
  --cursor-angle: 45deg;
  --edge-sensitivity: 2;
  --color-sensitivity: calc(var(--edge-sensitivity) + 20);
  --border-radius: 17px;
  --glow-padding: 40px;
  --cone-spread: 25;
  --card-bg: #000000;
  --fill-opacity: 0.5;

  /* Colors from user snippet */
  --glow-color: hsl(40deg 80% 80% / 100%);
  --glow-color-60: hsl(40deg 80% 80% / 60%);
  --glow-color-50: hsl(40deg 80% 80% / 50%);
  --glow-color-40: hsl(40deg 80% 80% / 40%);
  --glow-color-30: hsl(40deg 80% 80% / 30%);
  --glow-color-20: hsl(40deg 80% 80% / 20%);
  --glow-color-10: hsl(40deg 80% 80% / 10%);

  --gradient-one: radial-gradient(at 80% 55%, #c084fc 0px, transparent 50%);
  --gradient-two: radial-gradient(at 69% 34%, #f472b6 0px, transparent 50%);
  --gradient-three: radial-gradient(at 8% 6%, #38bdf8 0px, transparent 50%);
  --gradient-four: radial-gradient(at 41% 38%, #c084fc 0px, transparent 50%);
  --gradient-five: radial-gradient(at 86% 85%, #f472b6 0px, transparent 50%);
  --gradient-six: radial-gradient(at 82% 18%, #38bdf8 0px, transparent 50%);
  --gradient-seven: radial-gradient(at 51% 4%, #f472b6 0px, transparent 50%);
  --gradient-base: linear-gradient(#c084fc 0 100%);

  position: relative;
  border-radius: var(--border-radius);
  isolation: isolate;
  transform: translate3d(0, 0, 0.01px);
  display: flex;
  flex-direction: column;
  border: 1px solid rgb(255 255 255 / 15%);
  background: var(--card-bg);
  overflow: visible;
  transition: transform 0.3s ease;
}

.border-glow-card::before,
.border-glow-card::after,
.border-glow-card > .edge-light {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  transition: opacity 0.25s ease-out;
  z-index: -1;
  pointer-events: none;
}

.border-glow-card:not(:hover):not(.sweep-active)::before,
.border-glow-card:not(:hover):not(.sweep-active)::after,
.border-glow-card:not(:hover):not(.sweep-active) > .edge-light {
  opacity: 0;
  transition: opacity 0.75s ease-in-out;
}

/* colored mesh-gradient border */
.border-glow-card::before {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--card-bg) 0 100%) padding-box,
    linear-gradient(rgb(255 255 255 / 0%) 0% 100%) border-box,
    var(--gradient-one) border-box,
    var(--gradient-two) border-box,
    var(--gradient-three) border-box,
    var(--gradient-four) border-box,
    var(--gradient-five) border-box,
    var(--gradient-six) border-box,
    var(--gradient-seven) border-box,
    var(--gradient-base) border-box;

  opacity: calc((var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));

  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
  -webkit-mask-image: 
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
}

/* colored mesh-gradient background fill near edges */
.border-glow-card::after {
  border: 1px solid transparent;
  background:
    var(--gradient-one) padding-box,
    var(--gradient-two) padding-box,
    var(--gradient-three) padding-box,
    var(--gradient-four) padding-box,
    var(--gradient-five) padding-box,
    var(--gradient-six) padding-box,
    var(--gradient-seven) padding-box,
    var(--gradient-base) padding-box;

  mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);
  -webkit-mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);

  mask-composite: subtract, add, add, add, add, add;
  -webkit-mask-composite: source-out, destination-over, destination-over, destination-over, destination-over, destination-over;
  opacity: calc(var(--fill-opacity, 0.5) * (var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));
  mix-blend-mode: soft-light;
}

/* outer glow layer */
.border-glow-card > .edge-light {
  inset: calc(var(--glow-padding) * -1);
  pointer-events: none;
  z-index: 1;

  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center, black 2.5%, transparent 10%, transparent 90%, black 97.5%
    );
  -webkit-mask-image:
    conic-gradient(
      from var(--cursor-angle) at center, black 2.5%, transparent 10%, transparent 90%, black 97.5%
    );

  opacity: calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity)));
  mix-blend-mode: plus-lighter;
}

.border-glow-card > .edge-light::before {
  content: "";
  position: absolute;
  inset: var(--glow-padding);
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px var(--glow-color),
    inset 0 0 1px 0 var(--glow-color-60),
    inset 0 0 3px 0 var(--glow-color-50),
    inset 0 0 6px 0 var(--glow-color-40),
    inset 0 0 15px 0 var(--glow-color-30),
    inset 0 0 25px 2px var(--glow-color-20),
    inset 0 0 50px 2px var(--glow-color-10),
    0 0 1px 0 var(--glow-color-60),
    0 0 3px 0 var(--glow-color-50),
    0 0 6px 0 var(--glow-color-40),
    0 0 15px 0 var(--glow-color-30),
    0 0 25px 2px var(--glow-color-20),
    0 0 50px 2px var(--glow-color-10);
}

.border-glow-inner {
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  height: 100%;
  width: 100%;
  padding: clamp(2.5rem, 4vw, 3.5rem) clamp(2rem, 3vw, 3rem);
}