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

body {
  font-family: "Atkinson Hyperlegible";
  user-select: none;
}

.hidden {
  display: none;
}

/* ===== STARTER PAGE ===== */
.starter-page {
  position: fixed;
  inset: 0;
  background-color: hsl(206, 45%, 15%);
  display: flex;
  justify-content: center;
  align-items: center;
  transition:
    transform 0.6s ease,
    opacity 0.6s ease;
  z-index: 10;
}
.starter-page.slide-up {
  transform: translateY(-100%);
  opacity: 0;
}

.starter-wrapper {
  text-align: center;
  color: white;
}

h1 {
  font-size: 48px;
  margin-bottom: 48px;
}

.gameSelection {
  background-color: white;
  padding: 32px;
  border-radius: 25px;
  color: black;
}

.gameSelection div {
  margin-bottom: 32px;
}

h3 {
  color: #7191a5;
  font-size: 20px;
  margin-bottom: 16px;
}

.buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.btns {
  background-color: #bcced9;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
  border-radius: 26px;
  padding: 14px 32px;
}

.activeBtn {
  background-color: #304859;
}

.start-game {
  background-color: #fda214;
  color: white;
  width: 100%;
  padding: 18px;
  font-size: 28px;
  border-radius: 35px;
  font-weight: 700;
  cursor: pointer;
  border: none;
}

/* ===== GAME PAGE ===== */
.game-page {
  padding: 24px;
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.game-board {
  margin: 40px auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 420px;
}

.card {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  cursor: pointer;
}

.card img {
  width: 100%;
  height: 100%;
}

.card span {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 28px;
  font-weight: 700;
  color: white;
}

.game-info {
  display: flex;
  justify-content: space-around;
  margin-top: 24px;
}

.restart {
  background-color: #fda214;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 18px;
  border-radius: 30px;
  cursor: pointer;
}

.new-game {
  background-color: #5b6369;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 18px;
  border-radius: 30px;
  cursor: pointer;
}

/* ===== MODAL ===== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(21, 36, 48, 0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  z-index: 100;
}

.modal-overlay.hidden {
  display: none;
}

.custom-modal {
  width: min(100%, 420px);
  background: white;
  border-radius: 24px;
  padding: 32px 24px 24px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  animation: modalPop 0.25s ease;
}

.custom-modal h2 {
  font-size: 32px;
  color: #152938;
  margin-bottom: 14px;
}

.custom-modal p {
  font-size: 18px;
  line-height: 1.6;
  color: #7191a5;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.modal-btn {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 14px 18px;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;

  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.modal-btn:hover {
  transform: translateY(-1px);
}

.modal-primary {
  background-color: #fda214;
  color: white;
}

.modal-secondary {
  background-color: #dfe7ec;
  color: #304859;
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===== RESPOSIVE ===== */

@media (max-width: 480px) {
  .custom-modal {
    padding: 24px 18px 18px;
    border-radius: 18px;
  }

  .custom-modal h2 {
    font-size: 26px;
  }

  .custom-modal p {
    font-size: 16px;
    margin-bottom: 20px;
  }

  .modal-actions {
    flex-direction: column;
  }

  .modal-btn {
    width: 100%;
    font-size: 16px;
    padding: 12px 16px;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 40px;
    margin-bottom: 32px;
  }

  .gameSelection {
    padding: 24px;
  }

  .btns {
    font-size: 18px;
    padding: 12px 24px;
  }

  .start-game {
    font-size: 24px;
    padding: 16px;
  }

  .game-board {
    max-width: 360px;
    gap: 12px;
  }

  .card span {
    font-size: 24px;
  }

  .restart,
  .new-game {
    font-size: 16px;
    padding: 10px 20px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 8px;
  }

  h1 {
    font-size: 32px;
    margin-bottom: 24px;
  }

  h3 {
    font-size: 16px;
  }

  .starter-wrapper {
    width: 80%;
  }

  .gameSelection {
    padding: 20px;
    border-radius: 20px;
  }

  .buttons {
    flex-direction: column;
    gap: 10px;
  }

  .btns {
    width: 100%;
    font-size: 16px;
    padding: 12px;
  }

  .start-game {
    font-size: 20px;
    padding: 14px;
  }

  .game-header {
    flex-direction: column;
    gap: 12px;
  }

  .controls {
    display: flex;
    gap: 10px;
  }

  .game-board {
    grid-template-columns: repeat(4, 1fr);
    max-width: 100%;
    gap: 10px;
    margin: 24px auto;
  }

  .card span {
    font-size: 20px;
  }

  .game-info {
    flex-direction: column;
    gap: 8px;
    align-items: center;
    font-size: 16px;
  }

  .restart,
  .new-game {
    width: 100%;
    text-align: center;
    font-size: 16px;
    padding: 12px;
  }
}

@media (max-width: 360px) {
  h1 {
    font-size: 28px;
  }

  .card span {
    font-size: 18px;
  }
}