.lang-btn {
  min-width: unset;
  padding: 0;
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  z-index: 100;
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: none;
}
.lang-btn img {
  display: inline-block;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.07);
  transition: transform 0.15s;
}
.lang-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}
.lang-btn:hover img, .lang-btn:focus img {
  transform: scale(1.12);
  box-shadow: 0 0 0 2px var(--primary-color), 0 2px 8px rgba(0,0,0,0.10);
}
.lang-btn.bg-primary {
  color: inherit !important;
}
.lang-btn.bg-primary img {
  box-shadow: 0 0 0 2px var(--primary-color), 0 2px 8px rgba(0,0,0,0.10);
}
.lang-btn, .lang-btn * {
  pointer-events: auto !important;
}
.w-full.flex.justify-center.gap-4.mt-6.mb-4 {
  margin-top: 0.75rem !important;
  padding-top: 0.5rem;
  margin-bottom: 2.5rem !important;
  z-index: 101;
  position: relative;
}
:root {
  --transition-time-cubic: 0.4s cubic-bezier(0.23, 0.31, 0.28, 1.93);
  --large-scale: scale(1.1);
  --small-scale: scale(1.05);
  --primary-color: #ff5a65;
  --primary-content: #f3f4f6;
  --accent-color: #3d60de;
}

/* form section start */
.registration-form {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 2.5em 1.2em;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  box-sizing: border-box;
}

.registration-form .input-field {
  flex: 1 1 100%;
  max-width: 100%;
}

.registration-form .full-width-field {
  flex: 1 1 calc(100% - 1em);
}

.registration-form .submit-btn-wrapper {
  flex: 1 1 calc(100% - 1em);
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 1em;
}

.registration-form .error-message {
  color: var(--primary-color);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.registration-form .demo-class-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.registration-form .demo-class-option-card {
  position: relative;
  display: block;
  border: 2px solid #e5e7eb;
  border-radius: 0.9rem;
  min-height: 160px;
  background: #ffffff;
  padding: 0.25rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.registration-form .demo-class-option-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.registration-form .demo-class-option-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.registration-form .demo-class-option-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  min-height: 150px;
  padding: 0.9rem;
  border-radius: 0.7rem;
}

.registration-form .demo-class-course {
  font-weight: 700;
  color: #111827;
  line-height: 1.35;
}

.registration-form .demo-class-datetime {
  color: #374151;
  font-size: 0.95rem;
  line-height: 1.4;
}

.registration-form .demo-class-note {
  color: #6b7280;
  font-size: 0.82rem;
  line-height: 1.35;
}

.registration-form .demo-class-option-card:has(input[type="radio"]:checked) {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(61, 96, 222, 0.2);
}

.registration-form .demo-class-option-card:has(input[type="radio"]:focus-visible) {
  box-shadow: 0 0 0 4px rgba(61, 96, 222, 0.25);
}

@media (max-width: 900px) {
  .registration-form {
    max-width: 98vw;
    padding: 1.5em 0.5em;
  }
}

@media (max-width: 600px) {
  .registration-form {
    max-width: 100vw;
    padding: 1em 0.2em;
    gap: 1em;
  }
  .registration-form .input-field,
  .registration-form .full-width-field {
    flex: 1 1 100%;
    max-width: 100%;
  }
  .registration-form .submit-btn-wrapper {
    justify-content: center;
  }
  .registration-form .demo-class-options {
    grid-template-columns: 1fr;
  }
}

  .registration-form .demo-class-option-card {
    min-height: 138px;
  }

  .registration-form .demo-class-option-content {
    min-height: 128px;
  }
}
/* form section end */

/* Language Quick Switcher */
.lang-btn {
  min-width: 120px;
  font-size: 1.08rem;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  border-width: 2px;
}
.lang-btn img {
  display: inline-block;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.07);
}
.lang-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}
.lang-btn.bg-primary {
  color: #fff !important;
}
.lang-btn.bg-primary img {
  box-shadow: 0 0 0 2px #fff, 0 2px 8px rgba(0,0,0,0.08);
}