/* ===========================================================
   Ultra Button — Dni otwarte 2026
   =========================================================== */

:root {
  --c1: #00f0ff;   /* cyjan */
  --c2: #b14bff;   /* fiolet */
  --c3: #ff3df7;   /* magenta */
  --c4: #ffd166;   /* złoto */
  --c5: #36ffa3;   /* mięta */
  --bg-1: #05060d;
  --bg-2: #0a0a1f;
  --ink: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Segoe UI", Inter, system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(177, 75, 255, 0.25), transparent 60%),
    radial-gradient(1000px 700px at 80% 90%, rgba(0, 240, 255, 0.22), transparent 60%),
    radial-gradient(800px 600px at 50% 50%, rgba(255, 61, 247, 0.10), transparent 70%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
}

/* na pierwszej stronie (button) blokujemy scroll */
body:not(.page-informatyk) { overflow: hidden; }

/* siatka tła */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  pointer-events: none;
  animation: gridDrift 30s linear infinite;
}

@keyframes gridDrift {
  to { background-position: 420px 420px; }
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100vh;
  perspective: 1200px;
}

/* ===========================================================
   Button
   =========================================================== */

.ultra-btn {
  --w: 360px;
  --h: 96px;
  --r: 999px;
  --tx: 0deg;     /* tilt X (sterowane JS) */
  --ty: 0deg;     /* tilt Y */
  --mx: 50%;      /* pozycja kursora w % */
  --my: 50%;

  position: relative;
  width: var(--w);
  height: var(--h);
  border: 0;
  padding: 0;
  background: transparent;
  border-radius: var(--r);
  cursor: pointer;
  isolation: isolate;
  transform-style: preserve-3d;
  transform: rotateX(var(--ty)) rotateY(var(--tx));
  transition: transform 220ms cubic-bezier(.2,.7,.2,1);
  font: inherit;
  color: var(--ink);
  outline: none;
}

.ultra-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.55);
}

/* Aura — pulsujący glow za buttonem (pill-shape, pasuje do kształtu) */
.ultra-btn__aura {
  position: absolute;
  inset: -22px;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    rgba(0, 240, 255, 0.55) 0%,
    rgba(177, 75, 255, 0.55) 35%,
    rgba(255, 61, 247, 0.55) 65%,
    rgba(54, 255, 163, 0.45) 100%
  );
  background-size: 200% 100%;
  filter: blur(26px);
  opacity: 0.75;
  z-index: -2;
  animation: auraPulse 4s ease-in-out infinite,
             auraSlide 8s linear infinite;
}

@keyframes auraPulse {
  0%, 100% { transform: scale(1);    opacity: 0.65; }
  50%      { transform: scale(1.06); opacity: 0.95; }
}

@keyframes auraSlide {
  to { background-position: 200% 0; }
}

/* Border — animowany conic-gradient */
.ultra-btn__border {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: conic-gradient(
    from var(--angle, 0deg),
    var(--c1),
    var(--c2),
    var(--c3),
    var(--c4),
    var(--c5),
    var(--c1)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  animation: spin 6s linear infinite;
  filter: drop-shadow(0 0 14px rgba(0, 240, 255, 0.55))
          drop-shadow(0 0 24px rgba(255, 61, 247, 0.35));
  z-index: -1;
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

@keyframes spin {
  to { --angle: 360deg; }
}

/* Inner — ciało buttona */
.ultra-btn__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  padding: 0 28px;
  background:
    radial-gradient(120% 180% at var(--mx) var(--my),
      rgba(255, 255, 255, 0.18),
      rgba(255, 255, 255, 0) 45%),
    linear-gradient(135deg, #0e0e22 0%, #16163a 50%, #0a0a1f 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -10px 30px rgba(0, 0, 0, 0.6),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transform: translateZ(20px);
  clip-path: inset(0 round var(--r));
}

/* Shine — błysk przejeżdżający przy hoverze */
.ultra-btn__shine {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(255, 255, 255, 0.55) 48%,
    rgba(255, 255, 255, 0.0) 60%
  );
  transform: translateX(-120%);
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.0;
  transition: opacity 240ms ease;
}

.ultra-btn:hover .ultra-btn__shine {
  opacity: 1;
  animation: shineSweep 1.4s cubic-bezier(.2,.7,.2,1) infinite;
}

@keyframes shineSweep {
  0%   { transform: translateX(-120%); }
  60%  { transform: translateX(120%);  }
  100% { transform: translateX(120%);  }
}

/* Noise — subtelne ziarno */
.ultra-btn__noise {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* Ikona gwiazdki */
.ultra-btn__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c4);
  filter: drop-shadow(0 0 10px rgba(255, 209, 102, 0.7));
  animation: iconSpin 6s ease-in-out infinite;
}

@keyframes iconSpin {
  0%, 100% { transform: rotate(0deg)   scale(1); }
  50%      { transform: rotate(180deg) scale(1.1); }
}

/* Etykieta */
.ultra-btn__label {
  position: relative;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  background: linear-gradient(
    90deg,
    #ffffff 0%,
    var(--c1) 25%,
    var(--c3) 50%,
    var(--c4) 75%,
    #ffffff 100%
  );
  background-size: 250% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
  animation: textShimmer 4s linear infinite;
}

/* podwójny tekst — efekt "glitch" przy hoverze */
.ultra-btn__label::before,
.ultra-btn__label::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  background: inherit;
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease;
}

.ultra-btn__label::before {
  transform: translate(1.5px, 0);
  filter: drop-shadow(0 0 6px var(--c1));
  mix-blend-mode: screen;
}
.ultra-btn__label::after {
  transform: translate(-1.5px, 0);
  filter: drop-shadow(0 0 6px var(--c3));
  mix-blend-mode: screen;
}

.ultra-btn:hover .ultra-btn__label::before { opacity: 0.85; animation: glitchA 1.6s steps(2) infinite; }
.ultra-btn:hover .ultra-btn__label::after  { opacity: 0.85; animation: glitchB 1.6s steps(2) infinite; }

@keyframes textShimmer {
  to { background-position: -250% 0; }
}

@keyframes glitchA {
  0%, 100% { transform: translate(1.5px, 0); }
  25%      { transform: translate(2px, -1px); }
  50%      { transform: translate(0px,  1px); }
  75%      { transform: translate(2.5px, 0); }
}
@keyframes glitchB {
  0%, 100% { transform: translate(-1.5px, 0); }
  25%      { transform: translate(-2px, 1px); }
  50%      { transform: translate(0px,  -1px); }
  75%      { transform: translate(-2.5px, 0); }
}

/* Strzałka */
.ultra-btn__arrow {
  display: inline-flex;
  color: var(--c1);
  filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.7));
  transition: transform 280ms cubic-bezier(.2,.7,.2,1);
}

.ultra-btn:hover .ultra-btn__arrow { transform: translateX(6px); }

/* ===========================================================
   Hover & Active states
   =========================================================== */

.ultra-btn:hover {
  --w: 372px;
}

.ultra-btn:hover .ultra-btn__border {
  animation-duration: 2.5s;
  filter: drop-shadow(0 0 22px rgba(0, 240, 255, 0.85))
          drop-shadow(0 0 36px rgba(255, 61, 247, 0.55));
}

.ultra-btn:hover .ultra-btn__aura {
  animation-duration: 2s;
  opacity: 1;
}

.ultra-btn:active .ultra-btn__inner {
  transform: translateZ(8px) scale(0.985);
  transition: transform 80ms ease;
}

/* ===========================================================
   Ripple (klik) i sparkles (kursor)
   =========================================================== */

.ultra-btn .ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(closest-side,
    rgba(255, 255, 255, 0.7),
    rgba(255, 255, 255, 0) 70%);
  transform: translate(-50%, -50%) scale(0);
  animation: rippleAnim 700ms ease-out forwards;
  mix-blend-mode: screen;
}

@keyframes rippleAnim {
  to {
    transform: translate(-50%, -50%) scale(28);
    opacity: 0;
  }
}

.ultra-btn__sparkles {
  position: absolute;
  inset: -40px;
  pointer-events: none;
  z-index: 3;
  border-radius: inherit;
  overflow: visible;
}

.ultra-btn__sparkles .spark {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 0 30%, rgba(255,255,255,0) 70%);
  filter: drop-shadow(0 0 6px var(--sc, var(--c1)));
  animation: sparkRise var(--d, 900ms) ease-out forwards;
  opacity: 0;
}

@keyframes sparkRise {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.2); }
  20%  { opacity: 1; }
  100% {
    opacity: 0;
    transform:
      translate(calc(-50% + var(--dx, 0px)),
                calc(-50% + var(--dy, -60px)))
      scale(1);
  }
}

/* ===========================================================
   Reduced motion
   =========================================================== */

@media (prefers-reduced-motion: reduce) {
  .ultra-btn__border,
  .ultra-btn__aura,
  .ultra-btn__icon,
  .ultra-btn__label,
  body::before {
    animation: none !important;
  }
  .ultra-btn:hover .ultra-btn__shine { animation: none; opacity: 0; }
}

/* ===========================================================
   Portal transition — przejście do podstrony
   =========================================================== */

.ultra-btn.is-leaving {
  animation: btnLeave 700ms cubic-bezier(.6, .0, .8, .2) forwards;
  pointer-events: none;
}

@keyframes btnLeave {
  0%   { transform: rotateX(var(--ty)) rotateY(var(--tx)) scale(1);    opacity: 1; filter: blur(0); }
  40%  { transform: scale(1.15);  opacity: 1; filter: blur(0); }
  100% { transform: scale(0.6);   opacity: 0; filter: blur(8px); }
}

.portal-transition {
  position: fixed;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  z-index: 9999;
  background:
    radial-gradient(circle at center,
      #ffffff 0%,
      #00f0ff 8%,
      #b14bff 22%,
      #ff3df7 38%,
      #0a0a1f 65%,
      #05060d 100%);
  box-shadow:
    0 0 80px 20px rgba(0, 240, 255, 0.6),
    0 0 160px 40px rgba(255, 61, 247, 0.45);
  animation: portalOpen 1100ms cubic-bezier(.7, 0, .3, 1) forwards;
}

@keyframes portalOpen {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  60% {
    transform: translate(-50%, -50%) scale(120);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(260);
    opacity: 1;
  }
}