/* Hamburger menu button */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background-color: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@keyframes menu-slide-down {
  from {
    opacity: 0;
    max-height: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    max-height: 500px;
    transform: translateY(0);
  }
}

@media (max-width: 1350px) {
  .intro-container #kim,
  .about-container img {
    width: 250px;
  }
  .intro-container #gear {
    width: 80px;
    right: -40px;
  }
  .content-container p,
  .about-container .about-wrapper p {
    margin-right: 0;
    font-size: 16px;
  }
  .content-container,
  .about-container .about-wrapper {
    margin-left: 20px;
  }
}

@media (max-width: 1100px) {
  .intro-container #kim,
  .about-container img {
    width: 220px;
  }
  section h1 {
    font-size: 35px;
  }
  .content-container h2,
  .about-container .about-wrapper h2,
  .contact-container h2 {
    font-size: 25px;
  }
  .content-container p,
  .about-container .about-wrapper p,
  .contact-container p,
  footer p {
    font-size: 15px;
  }
  footer .footer-container i {
    font-size: 30px;
  }
}
/* Responsive tweaks: tighten spacing and sizes on tablets */
@media (max-width: 900px) {
  #logo-img {
    width: 80px;
    margin-right: 14px;
  }
  .navbar-cont {
    height: 64px;
    margin: 20px auto;
    padding: 0 25px;
    width: calc(100% - 250px);
  }
  .list ul {
    gap: 12px;
  }
  .list li {
    font-size: 16px;
  }
  main h1 {
    font-size: 40px;
  }
  main h2 {
    font-size: 18px;
  }
  main p,
  main .level,
  main .timer,
  main .timeout-message,
  main .result-message {
    font-size: 20px;
  }
  main i {
    font-size: 28px;
  }
  main .info span {
    font-size: 14px;
  }
  main .images-container .game-image {
    width: 100px;
    height: 100px;
  }
  main .game-item {
    height: auto;
  }
  .intro-container,
  .about-container {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
  }
  .form-container {
    flex-direction: column;
  }
  .form-container .phone-container {
    max-width: 100%;
  }
}

/* Mobile responsiveness: small phones and tablets */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .navbar-cont {
    flex-wrap: wrap;
    height: auto;
    margin: 15px auto;
    padding: 12px;
    border-radius: 20px;
    width: calc(100% - 125px);
  }
  #logo-img {
    width: 60px;
  }
  .list {
    width: 100%;
    margin-top: 12px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    visibility: hidden;
    margin-right: 60px;
  }
  .list.active {
    max-height: 500px;
    opacity: 1;
    visibility: visible;
  }
  .list ul {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }
  .list li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 16px;
  }
  .list li:last-child {
    border-bottom: none;
  }
  .list li a {
    display: block;
  }
  .input-js {
    margin-top: 8px;
  }

  /* -------main------- */
  main {
    margin-top: 120px;
  }
  main h1 {
    font-size: 32px;
    margin-top: 0;
  }
  main h2 {
    font-size: 16px;
  }
  main p,
  main .level,
  main .timer,
  main .timeout-message,
  main .result-message {
    font-size: 18px;
  }
  main .game-container .input-container {
    grid-template-columns: 1fr;
  }
  .level-container {
    flex-direction: column;
  }
  .level-container .game-item {
    width: 90%;
    margin-bottom: 16px;
  }
  main .game-container .input-container .submit-button {
    grid-column: span 1;
  }
  main .images-container .game-image {
    width: 80px;
    height: 80px;
  }
  /* ---intro--- */
  body {
    padding: 0 50px;
  }
  .intro-container #kim,
  .about-container img {
    width: 200px;
  }
  .intro-container #gear {
    width: 70px;
    right: -30px;
  }
  .content-container p,
  .about-container .about-wrapper p,
  .contact-container p,
  footer p {
    font-size: 14px;
  }
  section h1 {
    font-size: 28px;
  }
  .content-container h2,
  .about-container .about-wrapper h2,
  .contact-container h2 {
    font-size: 20px;
  }
  footer .footer-container i {
    font-size: 25px;
  }
}

/* Mobile responsiveness: very small phones */

@media (max-width: 480px) {
  body {
    padding: 0 30px;
  }
  .navbar-cont {
    width: calc(100% - 85px);
  }
  main h1 {
    font-size: 30px;
  }
  main p,
  main .level,
  main .timer,
  main .timeout-message,
  main .result-message {
    font-size: 16px;
  }
  main .images-container .game-image {
    width: 50px;
    height: 50px;
  }
  .intro-container,
  .about-container,
  .contact-container {
    padding: 20px;
  }
  .intro-container #kim,
  .about-container img {
    width: 180px;
  }
  .intro-container #gear {
    width: 60px;
    right: -25px;
  }
  section h1 {
    font-size: 25px;
  }
  .content-container h2,
  .about-container .about-wrapper h2,
  .contact-container h2 {
    font-size: 18px;
  }
  .content-container,
  .about-container .about-wrapper {
    margin-left: 0;
  }
  footer .footer-container {
    flex-direction: column;
    gap: 12px;
  }
  footer {
    border-radius: 20px;
  }
}