/* ============================================================
   STYLE.CSS – Pionowy podział z ukośną krawędzią
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: #0a0a0a;
}

/* ---------- Logo w tle ---------- */
.brand-watermark {
  position: fixed;
  top: 7%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  text-decoration: none;
  width: min(640px, 78vw);
  padding: 1.55rem 2rem;
  border-radius: 28px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 28px 90px rgba(0,0,0,0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: auto;
}

.brand-watermark::after {
  content: '';
  position: absolute;
  inset: -18px;
  border-radius: 36px;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.24), transparent 68%);
  z-index: -1;
}

.brand-watermark img {
  display: block;
  width: 100%;
  height: auto;
  opacity: 1;
}

/* ---------- Kontener Flex ---------- */
.container {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

/* ---------- Panel – wspólne ---------- */
.panel {
  position: relative;
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  min-width: 80px;
  transition: flex 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Tło panelu ---------- */
.panel__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1),
              filter 0.6s ease;
}

.panel--left .panel__bg {
  background: linear-gradient(160deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}

.panel--right .panel__bg {
  background: linear-gradient(200deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

/* ---------- Treść panelu ---------- */
.panel__content {
  position: relative;
  z-index: 2;
  text-align: center;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.panel__icon {
  display: block;
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.panel__title {
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: 0;
  color: #fff;
  text-shadow: 0 5px 28px rgba(0,0,0,0.72);
  margin-bottom: 0.3rem;
  transition: font-size 0.5s ease, transform 0.5s ease, writing-mode 0s;
  white-space: nowrap;
}

.panel__sub {
  font-size: clamp(0.8rem, 1.4vw, 1.1rem);
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  text-shadow: 0 3px 14px rgba(0,0,0,0.62);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* ---------- Ukośna linia dekoracyjna ---------- */
.divider {
  position: absolute;
  top: -5%;
  left: 50%;
  width: 4px;
  height: 110%;
  z-index: 10;
  pointer-events: none;
  transform: translateX(-50%) skewX(-5deg);
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(255,255,255,0.06) 15%,
    rgba(255,255,255,0.2) 50%,
    rgba(255,255,255,0.06) 85%,
    transparent 100%
  );
  transition: opacity 0.5s ease, left 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  box-shadow: 0 0 20px rgba(255,255,255,0.05);
}

/* ============================================================
   DESKTOP – CSS hover
   Używamy @media (hover: hover) żeby nie wpływać na mobile
   ============================================================ */
@media (hover: hover) and (pointer: fine) {

  .container:hover .panel {
    flex: 0.4;
  }

  .container:hover .panel:hover {
    flex: 3;
  }

  /* Skurczony panel – ukryj ikonę i podtytuł, ale zostaw tytuł */
  .container:hover .panel:not(:hover) .panel__icon {
    opacity: 0;
    transform: scale(0.5);
    height: 0;
    margin: 0;
    overflow: hidden;
  }

  .container:hover .panel:not(:hover) .panel__sub {
    opacity: 0;
    transform: scale(0.8);
    height: 0;
    margin: 0;
    overflow: hidden;
  }

  /* Tytuł skurczonego panelu – obrócony pionowo */
  .container:hover .panel:not(:hover) .panel__title {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: clamp(1rem, 2vw, 1.5rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.7;
  }

  /* Powiększ tło przy hover */
  .container:hover .panel:hover .panel__bg {
    transform: scale(1.08);
  }

  /* Przyciemnij tło skurczonego panelu */
  .container:hover .panel:not(:hover) .panel__bg {
    filter: brightness(0.5);
  }

  /* Przesuń divider */
  .container:hover .panel--left:hover ~ .divider {
    left: 82%;
    opacity: 0.3;
  }

  /* Gdy hover na prawym panelu – divider w lewo */
  .container:hover .divider {
    left: 18%;
    opacity: 0.3;
  }
}

/* ============================================================
   MOBILE – klasy JS (tap)
   ============================================================ */

/* Oddział rozwinięty – Poradnie skurczone z widocznym tytułem */
.container.show-oddzial .panel--left {
  flex: 4;
}
.container.show-oddzial .panel--right {
  flex: 0.35;
}
.container.show-oddzial .panel--right .panel__icon {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}
.container.show-oddzial .panel--right .panel__sub {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}
.container.show-oddzial .panel--right .panel__title {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.7;
}
.container.show-oddzial .panel--right .panel__bg {
  filter: brightness(0.5);
}
.container.show-oddzial .panel--left .panel__bg {
  transform: scale(1.05);
}
.container.show-oddzial .divider {
  left: 85%;
  opacity: 0.3;
}

/* Poradnie rozwinięte – Oddział skurczony z widocznym tytułem */
.container.show-poradnie .panel--right {
  flex: 4;
}
.container.show-poradnie .panel--left {
  flex: 0.35;
}
.container.show-poradnie .panel--left .panel__icon {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}
.container.show-poradnie .panel--left .panel__sub {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}
.container.show-poradnie .panel--left .panel__title {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.7;
}
.container.show-poradnie .panel--left .panel__bg {
  filter: brightness(0.5);
}
.container.show-poradnie .panel--right .panel__bg {
  transform: scale(1.05);
}
.container.show-poradnie .divider {
  left: 15%;
  opacity: 0.3;
}

/* ============================================================
   EFEKTY DODATKOWE
   ============================================================ */

/* Subtelna animacja napisu */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

.panel__icon {
  animation: float 4s ease-in-out infinite;
}

.panel--right .panel__icon {
  animation-delay: -2s;
}

/* Shimmer na dividerze */
@keyframes shimmer-v {
  0%   { background-position: 0 -200%; }
  100% { background-position: 0 200%; }
}

.divider {
  background-size: 100% 200%;
  animation: shimmer-v 5s linear infinite;
}

/* ============================================================
   RESPONSIVE – MOBILE (kolumna zamiast wiersza)
   ============================================================ */
@media (max-width: 768px) {
  .brand-watermark {
    top: 1.25rem;
    width: min(340px, 78vw);
    padding: 0.75rem 1rem;
    border-radius: 20px;
  }

  .brand-watermark img {
    opacity: 1;
    max-height: 64px;
  }

  .container {
    flex-direction: column;
  }

  .panel__content {
    transform: translateY(2.2rem);
  }

  /* Na mobile: tytuł skurczonego panelu poziomo (bo kolumna) */
  .container.show-oddzial .panel--right .panel__title,
  .container.show-poradnie .panel--left .panel__title {
    writing-mode: horizontal-tb !important;
    font-size: 0.95rem !important;
  }

  .panel {
    min-width: auto;
    min-height: 60px;
  }

  /* Divider w poziomie na mobile */
  .divider {
    top: 50%;
    left: -5% !important;
    width: 110%;
    height: 3px;
    transform: translateY(-50%) skewY(-3deg);
  }

  /* Mobilne stany tap */
  .container.show-oddzial .divider {
    top: 85%;
  }
  .container.show-poradnie .divider {
    top: 15%;
  }
}

/* ============================================================
   PRZYCISK POWROTU (mobile)
   ============================================================ */
.back-btn {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  z-index: 100;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 1.8rem;
  border-radius: 50px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1),
              opacity 0.5s ease,
              background 0.3s ease;
}

.back-btn:hover {
  background: rgba(255,255,255,0.22);
}

.back-btn.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}