@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

.html-text-converter-tool {
  position: relative;
  width: 100%;
  max-width: none;
  border-radius: 0 !important;
  overflow-x: hidden;
  box-sizing: border-box;
  padding: 56px 18px;
  color: #f8fbff;
  background:
    radial-gradient(circle at 18% 18%, rgba(45, 212, 191, 0.34), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(244, 114, 182, 0.28), transparent 30%),
    linear-gradient(135deg, #101827 0%, #172554 44%, #312e81 100%);
  font-family: Arial, Helvetica, sans-serif;
}

.html-text-converter-tool,
.html-text-converter-tool * {
  box-sizing: border-box;
}

.html-text-converter-tool__shell {
  width: min(100%, 1000px);
  max-width: 1000px;
  margin: 0 auto;
}

.html-text-converter-tool__header {
  text-align: center;
  margin: 0 auto 30px;
}

.html-text-converter-tool__title {
  margin: 0;
  font-size: clamp(1.5rem, 5vw, 2.8rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: 0;
  color: #ffffff;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.html-text-converter-tool__subtitle {
  max-width: 690px;
  margin: 14px auto 0;
  font-size: 1.05rem;
  line-height: 1.65;
  color: #dbeafe;
  text-align: center;
}

.html-text-converter-tool__grid {
  width: 100%;
  max-width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.html-text-converter-tool__panel {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.13);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.html-text-converter-tool__panel:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.36);
  box-shadow: 0 30px 86px rgba(0, 0, 0, 0.34);
}

.html-text-converter-tool__panel--result {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.html-text-converter-tool__label {
  display: block;
  margin: 0 0 12px;
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.35;
}

.html-text-converter-tool__textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 310px;
  min-height: 240px;
  resize: vertical;
  padding: 16px;
  border: 1px solid rgba(219, 234, 254, 0.35);
  border-radius: 14px;
  outline: none;
  background: rgba(8, 15, 30, 0.72);
  color: #f8fbff;
  font: 500 0.98rem/1.6 Consolas, Monaco, "Courier New", monospace;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
  overflow: auto;
}

.html-text-converter-tool__textarea::placeholder {
  color: rgba(219, 234, 254, 0.62);
}

.html-text-converter-tool__textarea:focus {
  border-color: #67e8f9;
  background: rgba(6, 13, 28, 0.86);
  box-shadow: 0 0 0 4px rgba(103, 232, 249, 0.18), 0 0 34px rgba(45, 212, 191, 0.22);
}

.html-text-converter-tool__actions {
  width: 100%;
  max-width: 100%;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.html-text-converter-tool__actions--result {
  flex-shrink: 0;
}

.html-text-converter-tool__button {
  max-width: 100%;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
  white-space: normal;
}

.html-text-converter-tool__button--primary {
  flex: 1 1 170px;
  background: linear-gradient(135deg, #14b8a6, #2563eb);
}

.html-text-converter-tool__button--secondary {
  flex: 1 1 150px;
  background: rgba(255, 255, 255, 0.13);
}

.html-text-converter-tool__button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.48);
  box-shadow: 0 18px 42px rgba(45, 212, 191, 0.24), 0 14px 30px rgba(0, 0, 0, 0.26);
}

.html-text-converter-tool__button:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.92);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(103, 232, 249, 0.24);
}

.html-text-converter-tool__result {
  width: 100%;
  max-width: 100%;
  min-height: 240px;
  max-height: 360px;
  flex: 1 1 auto;
  padding: 16px;
  border: 1px solid rgba(219, 234, 254, 0.35);
  border-radius: 14px;
  background: rgba(8, 15, 30, 0.72);
  color: #ffffff;
  font-size: 0.98rem;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-y: auto;
  overflow-x: hidden;
  overflow-wrap: anywhere;
  word-break: break-word;
  animation: htmlTextConverterFade 180ms ease;
}

.html-text-converter-tool__result--placeholder {
  color: rgba(219, 234, 254, 0.72);
}

.html-text-converter-tool__result--message {
  color: #ffedd5;
}

.html-text-converter-tool__result::-webkit-scrollbar,
.html-text-converter-tool__textarea::-webkit-scrollbar {
  width: 10px;
}

.html-text-converter-tool__result::-webkit-scrollbar-track,
.html-text-converter-tool__textarea::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
}

.html-text-converter-tool__result::-webkit-scrollbar-thumb,
.html-text-converter-tool__textarea::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #67e8f9, #818cf8);
  border-radius: 999px;
}

@keyframes htmlTextConverterFade {
  from {
    opacity: 0.72;
    transform: translateY(2px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 320px) and (max-width: 374px) {
  .html-text-converter-tool {
    padding: 34px 12px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 0.94rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .html-text-converter-tool__panel {
    padding: 15px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 245px;
    font-size: 0.9rem;
    padding: 13px;
  }

  .html-text-converter-tool__button {
    width: 100%;
    min-height: 46px;
    padding: 11px 14px;
    font-size: 0.9rem;
  }

  .html-text-converter-tool__actions--result {
    flex-direction: column;
  }

  .html-text-converter-tool__result {
    font-size: 0.92rem;
    max-height: 310px;
    padding: 13px;
  }
}

@media (min-width: 375px) and (max-width: 429px) {
  .html-text-converter-tool {
    padding: 38px 14px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 0.96rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .html-text-converter-tool__panel {
    padding: 16px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 255px;
    font-size: 0.92rem;
    padding: 14px;
  }

  .html-text-converter-tool__button {
    min-height: 46px;
    padding: 12px 15px;
    font-size: 0.92rem;
  }

  .html-text-converter-tool__result {
    font-size: 0.93rem;
    max-height: 320px;
    padding: 14px;
  }
}

@media (min-width: 430px) and (max-width: 767px) {
  .html-text-converter-tool {
    padding: 44px 16px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 1rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: 1fr;
    gap: 17px;
  }

  .html-text-converter-tool__panel {
    padding: 18px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 280px;
    font-size: 0.95rem;
    padding: 15px;
  }

  .html-text-converter-tool__button {
    min-height: 47px;
    padding: 12px 16px;
    font-size: 0.94rem;
  }

  .html-text-converter-tool__result {
    font-size: 0.95rem;
    max-height: 335px;
    padding: 15px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .html-text-converter-tool {
    padding: 54px 24px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 1.04rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .html-text-converter-tool__panel {
    padding: 22px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 310px;
    font-size: 0.98rem;
    padding: 16px;
  }

  .html-text-converter-tool__button {
    min-height: 48px;
    padding: 12px 18px;
    font-size: 0.95rem;
  }

  .html-text-converter-tool__result {
    font-size: 0.98rem;
    max-height: 360px;
    padding: 16px;
  }
}

@media (min-width: 1024px) and (max-width: 1199px) {
  .html-text-converter-tool {
    padding: 64px 28px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 1.06rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 22px;
    align-items: stretch;
  }

  .html-text-converter-tool__panel {
    padding: 23px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 330px;
    font-size: 0.98rem;
    padding: 16px;
  }

  .html-text-converter-tool__button {
    min-height: 48px;
    padding: 12px 18px;
    font-size: 0.95rem;
  }

  .html-text-converter-tool__result {
    font-size: 0.98rem;
    max-height: 390px;
    padding: 16px;
  }
}

@media (min-width: 1200px) {
  .html-text-converter-tool {
    padding: 72px 32px;
    border-radius: 0 !important;
  }

  .html-text-converter-tool__shell {
    width: 100%;
  }

  .html-text-converter-tool__title {
    font-size: clamp(1.5rem, 5vw, 2.8rem);
  }

  .html-text-converter-tool__subtitle {
    font-size: 1.08rem;
  }

  .html-text-converter-tool__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    align-items: stretch;
  }

  .html-text-converter-tool__panel {
    padding: 24px;
  }

  .html-text-converter-tool__textarea {
    width: 100%;
    height: 340px;
    font-size: 1rem;
    padding: 17px;
  }

  .html-text-converter-tool__button {
    min-height: 50px;
    padding: 13px 20px;
    font-size: 0.96rem;
  }

  .html-text-converter-tool__result {
    font-size: 1rem;
    max-height: 400px;
    padding: 17px;
  }
}