/* Stilovi za igru Križić-Kružić */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

:root {
  --plava: #56b8e6;
  --tamno-plava: #17283b;
  --narancasta: #f5821f;
  --siva: #f4f4f4;
  --bijela: #ffffff;
  --x-boja: #56b8e6;
  --o-boja: #f5821f;
  --pobjeda-boja: #4CAF50;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  background-color: var(--bijela);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  padding: 30px;
  max-width: 550px;
  width: 100%;
  text-align: center;
  transform: translateY(0);
  transition: transform 0.3s ease;
}

.container:hover {
  transform: translateY(-5px);
}

h1 {
  color: var(--tamno-plava);
  margin-bottom: 20px;
  font-size: 2.5rem;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  display: inline-block;
}

h1::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, var(--plava), var(--narancasta));
  transform: translateX(-50%);
  border-radius: 2px;
}

h2 {
  color: var(--tamno-plava);
  margin-bottom: 15px;
  font-size: 1.6rem;
}

h3 {
  color: var(--tamno-plava);
  margin: 15px 0;
  font-size: 1.3rem;
}

/* Stilovi za odabir načina igre */
.odabir-igre {
  margin-bottom: 20px;
}

.opcije-igre, .nacin-igre, .tezina {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 25px;
  transition: all 0.3s ease;
}

.nacin-igre.sakrij, .tezina.sakrij {
  opacity: 0;
  transform: translateY(-20px);
  height: 0;
  margin: 0;
  overflow: hidden;
}

.nacin-igre.prikazi, .tezina.prikazi {
  opacity: 1;
  transform: translateY(0);
  animation: fade-in 0.5s ease;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.opcija-igre, .opcija-tezine {
  padding: 12px 20px;
  border: none;
  border-radius: 5px;
  background-color: var(--plava);
  color: white;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.opcija-igre:hover, .opcija-tezine:hover {
  background-color: #3a9fd0;
  transform: translateY(-2px);
}

.opcija-igre#protiv-racunala {
  background-color: var(--narancasta);
}

.opcija-igre#protiv-racunala:hover {
  background-color: #e06b0c;
}

.tezina-racunala {
  display: none;
  margin-top: 15px;
}

.opcija-tezine[data-tezina="lako"] {
  background-color: #4CAF50;
}

.opcija-tezine[data-tezina="lako"]:hover {
  background-color: #3e8e41;
}

.opcija-tezine[data-tezina="srednje"] {
  background-color: var(--narancasta);
}

.opcija-tezine[data-tezina="srednje"]:hover {
  background-color: #e06b0c;
}

.opcija-tezine[data-tezina="tesko"] {
  background-color: #f44336;
}

.opcija-tezine[data-tezina="tesko"]:hover {
  background-color: #d32f2f;
}

.status {
  margin: 25px 0;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--tamno-plava);
  min-height: 1.5em;
  padding: 10px;
  border-radius: 10px;
  background-color: rgba(86, 184, 230, 0.1);
  transition: all 0.3s ease;
  transform: scale(1);
}

.status.aktivan {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

.rezultat {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;
  font-size: 1.2rem;
  font-weight: bold;
}

.rezultat div {
  padding: 12px 25px;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  transform: translateY(0);
}

.rezultat div:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.rezultat-x, .rezultat-o {
  position: relative;
  overflow: hidden;
}

.rezultat-x::after, .rezultat-o::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.rezultat-x.poen-dodan::after, .rezultat-o.poen-dodan::after {
  animation: shine 1s forwards;
}

@keyframes shine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.rezultat-x {
  background-color: var(--plava);
  color: white;
}

.rezultat-o {
  background-color: var(--narancasta);
  color: white;
}

/* Preostali potezi */
.preostali-potezi {
  display: flex;
  justify-content: space-around;
  margin: 15px 0 25px;
  padding: 10px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.preostali-x, .preostali-o {
  display: flex;
  gap: 10px;
}

.mini-x, .mini-o {
  width: 30px;
  height: 30px;
  position: relative;
  cursor: default;
  border-radius: 5px;
  background-color: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

/* Mini X stil */
.mini-x::before, .mini-x::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70%;
  height: 15%;
  background-color: var(--x-boja);
  border-radius: 3px;
}

.mini-x::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.mini-x::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* Mini O stil */
.mini-o::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 35%;
  height: 35%;
  border: 4px solid var(--o-boja);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* Animacija za aktivni mini simbol */
.mini-x.aktivan, .mini-o.aktivan {
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* Animacija za neaktivne mini simbole */
.mini-x.neaktivan, .mini-o.neaktivan {
  opacity: 0.3;
}

/* Animacija za povlačenje simbola */
.simbol-u-pokretu {
  position: fixed;
  z-index: 100;
  pointer-events: none;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.ploca {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 15px;
  margin-bottom: 30px;
  perspective: 1000px;
}

.celija {
  background-color: var(--bijela);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0; /* Sakrivamo tekst jer ćemo koristiti pseudo-elemente */
  font-weight: bold;
  cursor: pointer;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  border: 2px solid rgba(0, 0, 0, 0.05);
  transform-style: preserve-3d;
  transform: rotateX(0) rotateY(0);
}

.celija:hover {
  transform: translateY(-5px) rotateX(5deg) rotateY(5deg);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
  border-color: rgba(86, 184, 230, 0.3);
}

.celija::before,
.celija::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* X stil */
.celija.x::before,
.celija.x::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70%;
  height: 15%;
  background-color: var(--x-boja);
  border-radius: 10px;
  transform-origin: center;
  animation: appear-x 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.celija.x::before {
  transform: translate(-50%, -50%) rotate(45deg) scaleY(0);
}

.celija.x::after {
  transform: translate(-50%, -50%) rotate(-45deg) scaleY(0);
}

@keyframes appear-x {
  to {
    transform: translate(-50%, -50%) rotate(var(--rotation)) scaleY(1);
  }
}

.celija.x::before {
  --rotation: 45deg;
}

.celija.x::after {
  --rotation: -45deg;
}

/* O stil */
.celija.o::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 35%;
  height: 35%;
  border: 18px solid var(--o-boja);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: appear-o 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes appear-o {
  to {
    transform: translate(-50%, -50%) scale(1);
  }
}

/* Pobjednička animacija */
.celija.pobjeda {
  background-color: rgba(76, 175, 80, 0.2);
  animation: winner-pulse 1.5s infinite;
  border-color: var(--pobjeda-boja);
  z-index: 1;
  transform: translateY(0) rotateX(0) rotateY(0); /* Resetiranje svih transformacija */
}

@keyframes winner-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(76, 175, 80, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(76, 175, 80, 0);
  }
}

.gumbi {
  display: flex;
  justify-content: center;
  gap: 10px;
}

button {
  background-color: var(--plava);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.7s ease;
  z-index: -1;
}

button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

button:hover::before {
  left: 100%;
}

button:active {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

button.reset-score {
  background-color: var(--narancasta);
}

@media (max-width: 480px) {
  .container {
    padding: 15px;
    max-width: 95%;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  h2 {
    font-size: 1.4rem;
  }
  
  .celija {
    font-size: 2rem;
  }
  
  button {
    padding: 10px 18px;
    font-size: 0.9rem;
  }
  
  .gumbi {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }
  
  .status {
    font-size: 1.1rem;
    padding: 8px;
  }
  
  .ploca {
    grid-gap: 10px;
  }
  
  .celija.o::before {
    border-width: 12px;
    width: 35%;
    height: 35%;
  }
  
  .nacin-igre, .tezina {
    flex-direction: column;
    gap: 10px;
  }
  
  .opcija-nacina, .opcija-tezine {
    width: 100%;
  }
}