@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');

.how-long-page {
  position: relative;
  overflow-x: hidden;
  background: #f8fafc;
  color: #172033;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.how-long-page,
.how-long-page * {
  box-sizing: border-box;
}

.how-long-page__container {
  width: min(100%, 1200px);
  margin: 0 auto;
}

.how-long-page__header {
  text-align: center;
  margin: 0 auto;
}

.how-long-page__title {
  margin: 0;
  color: #111827;
  font-weight: 750;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.how-long-page__subtitle {
  max-width: 680px;
  margin: 14px auto 0;
  color: #4b5563;
  line-height: 1.6;
}

.how-long-page__tool {
  margin: 0 auto;
}

.how-long-tool {
  width: 100%;
  max-width: 980px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #dbe3ef;
  border-radius: 24px;
  box-shadow: 0 22px 60px rgba(15, 23, 42, 0.11);
}

.how-long-tool__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.how-long-tool__title {
  margin: 0;
  color: #111827;
  font-size: clamp(1.15rem, 1.1rem + 0.35vw, 1.45rem);
  line-height: 1.2;
}

.how-long-tool__summary {
  margin: 8px 0 0;
  color: #5b6472;
  line-height: 1.5;
}

.how-long-tool__status {
  min-height: 24px;
  color: #1e3a8a;
  background: #eef4ff;
  border: 1px solid #d8e5ff;
  border-radius: 14px;
  line-height: 1.45;
}

.how-long-tool__status.is-error {
  color: #8a1f11;
  background: #fff1ed;
  border-color: #ffd2c4;
}

.how-long-tool__status.is-success {
  color: #126133;
  background: #effaf3;
  border-color: #c9efd6;
}

.how-long-tool__grid {
  display: grid;
}

.how-long-metric {
  min-width: 0;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid #dce6f5;
  border-radius: 18px;
  text-align: center;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.how-long-metric__value {
  display: block;
  color: #172554;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  line-height: 1;
}

.how-long-metric__label {
  display: block;
  margin-top: 10px;
  color: #586277;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.how-long-tool__details {
  display: grid;
  border: 1px solid #e1e7f0;
  border-radius: 18px;
  background: #fbfdff;
}

.how-long-detail {
  min-width: 0;
}

.how-long-detail__label {
  display: block;
  color: #6b7280;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.how-long-detail__value {
  display: block;
  margin-top: 6px;
  color: #172033;
  font-weight: 650;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.how-long-tool__controls {
  display: grid;
}

.how-long-tool__presets {
  display: flex;
  flex-wrap: wrap;
}

.how-long-form {
  display: grid;
  align-items: end;
}

.how-long-field {
  min-width: 0;
}

.how-long-field__label {
  display: block;
  margin-bottom: 8px;
  color: #374151;
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.3;
}

.how-long-field__input {
  width: 100%;
  min-height: 46px;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #ffffff;
  color: #111827;
  font: inherit;
  line-height: 1.2;
}

.how-long-form__actions {
  display: flex;
  flex-wrap: wrap;
}

.how-long-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 12px;
  font: inherit;
  font-weight: 750;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.how-long-button--primary {
  color: #ffffff;
  background: #1d4ed8;
  box-shadow: 0 10px 20px rgba(29, 78, 216, 0.22);
}

.how-long-button--accent {
  color: #ffffff;
  background: #3730a3;
  box-shadow: 0 10px 20px rgba(55, 48, 163, 0.18);
}

.how-long-button--secondary {
  color: #1f2a44;
  background: #ffffff;
  border-color: #cbd5e1;
}

.how-long-button:hover {
  transform: translateY(-1px);
}

.how-long-button:focus-visible,
.how-long-field__input:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.how-long-button:active {
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .how-long-page .how-long-button {
    transition: none;
  }

  .how-long-page .how-long-button:hover,
  .how-long-page .how-long-button:active {
    transform: none;
  }
}

@media (min-width: 320px) and (max-width: 374px) {
  .how-long-page {
    padding: 36px 14px;
  }

  .how-long-page__container {
    padding: 0;
  }

  .how-long-page__title {
    font-size: 2rem;
  }

  .how-long-page__subtitle {
    font-size: 0.95rem;
  }

  .how-long-tool {
    margin-top: 24px;
    padding: 18px;
    border-radius: 18px;
  }

  .how-long-tool__top {
    flex-direction: column;
    gap: 14px;
  }

  .how-long-tool__status {
    margin-top: 16px;
    padding: 10px 12px;
    font-size: 0.9rem;
  }

  .how-long-tool__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
  }

  .how-long-metric {
    padding: 16px 8px;
  }

  .how-long-metric__value {
    font-size: 2.1rem;
  }

  .how-long-metric__label {
    font-size: 0.66rem;
  }

  .how-long-tool__details {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 18px;
    padding: 14px;
  }

  .how-long-tool__controls {
    gap: 16px;
    margin-top: 18px;
  }

  .how-long-tool__presets,
  .how-long-form__actions {
    gap: 10px;
  }

  .how-long-form {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .how-long-button {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.92rem;
  }

  .how-long-field__input {
    padding: 10px 12px;
    font-size: 0.95rem;
  }
}

@media (min-width: 375px) and (max-width: 429px) {
  .how-long-page {
    padding: 42px 16px;
  }

  .how-long-page__container {
    padding: 0;
  }

  .how-long-page__title {
    font-size: 2.28rem;
  }

  .how-long-page__subtitle {
    font-size: 1rem;
  }

  .how-long-tool {
    margin-top: 26px;
    padding: 20px;
  }

  .how-long-tool__top {
    flex-direction: column;
    gap: 14px;
  }

  .how-long-tool__status {
    margin-top: 18px;
    padding: 11px 13px;
    font-size: 0.92rem;
  }

  .how-long-tool__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 20px;
  }

  .how-long-metric {
    padding: 18px 10px;
  }

  .how-long-metric__value {
    font-size: 2.45rem;
  }

  .how-long-metric__label {
    font-size: 0.7rem;
  }

  .how-long-tool__details {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 20px;
    padding: 16px;
  }

  .how-long-tool__controls {
    gap: 18px;
    margin-top: 20px;
  }

  .how-long-tool__presets,
  .how-long-form__actions {
    gap: 10px;
  }

  .how-long-form {
    grid-template-columns: 1fr;
    gap: 13px;
  }

  .how-long-button {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
  }

  .how-long-field__input {
    padding: 10px 12px;
    font-size: 1rem;
  }
}

@media (min-width: 430px) and (max-width: 767px) {
  .how-long-page {
    padding: 50px 20px;
  }

  .how-long-page__container {
    padding: 0;
  }

  .how-long-page__title {
    font-size: 2.6rem;
  }

  .how-long-page__subtitle {
    font-size: 1.03rem;
  }

  .how-long-tool {
    margin-top: 30px;
    padding: 24px;
  }

  .how-long-tool__top {
    flex-direction: column;
    gap: 16px;
  }

  .how-long-tool__status {
    margin-top: 18px;
    padding: 12px 14px;
    font-size: 0.95rem;
  }

  .how-long-tool__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 22px;
  }

  .how-long-metric {
    padding: 20px 12px;
  }

  .how-long-metric__value {
    font-size: 2.9rem;
  }

  .how-long-metric__label {
    font-size: 0.74rem;
  }

  .how-long-tool__details {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 22px;
    padding: 18px;
  }

  .how-long-tool__controls {
    gap: 18px;
    margin-top: 22px;
  }

  .how-long-tool__presets,
  .how-long-form__actions {
    gap: 10px;
  }

  .how-long-form {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .how-long-form__actions {
    grid-column: 1 / -1;
  }

  .how-long-button {
    flex: 1 1 180px;
    padding: 12px 16px;
    font-size: 0.96rem;
  }

  .how-long-field__input {
    padding: 10px 12px;
    font-size: 1rem;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .how-long-page {
    padding: 64px 28px;
  }

  .how-long-page__container {
    padding: 0 4px;
  }

  .how-long-page__title {
    font-size: 3.2rem;
  }

  .how-long-page__subtitle {
    font-size: 1.08rem;
  }

  .how-long-tool {
    margin-top: 36px;
    padding: 30px;
  }

  .how-long-tool__top {
    gap: 20px;
  }

  .how-long-tool__status {
    margin-top: 20px;
    padding: 12px 16px;
    font-size: 0.98rem;
  }

  .how-long-tool__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
  }

  .how-long-metric {
    padding: 24px 16px;
  }

  .how-long-metric__value {
    font-size: 3.5rem;
  }

  .how-long-metric__label {
    font-size: 0.78rem;
  }

  .how-long-tool__details {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 24px;
    padding: 20px;
  }

  .how-long-tool__controls {
    gap: 20px;
    margin-top: 24px;
  }

  .how-long-tool__presets,
  .how-long-form__actions {
    gap: 12px;
  }

  .how-long-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .how-long-form__actions {
    grid-column: 1 / -1;
  }

  .how-long-button {
    padding: 12px 18px;
    font-size: 0.98rem;
  }

  .how-long-field__input {
    padding: 11px 13px;
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .how-long-page {
    padding: 78px 36px;
  }

  .how-long-page__container {
    padding: 0 8px;
  }

  .how-long-page__title {
    font-size: 3.75rem;
  }

  .how-long-page__subtitle {
    font-size: 1.12rem;
  }

  .how-long-tool {
    margin-top: 40px;
    padding: 34px;
  }

  .how-long-tool__top {
    gap: 24px;
  }

  .how-long-tool__status {
    margin-top: 22px;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .how-long-tool__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 26px;
  }

  .how-long-metric {
    padding: 26px 18px;
  }

  .how-long-metric__value {
    font-size: 3.75rem;
  }

  .how-long-metric__label {
    font-size: 0.8rem;
  }

  .how-long-tool__details {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-top: 26px;
    padding: 22px;
  }

  .how-long-tool__controls {
    gap: 22px;
    margin-top: 26px;
  }

  .how-long-tool__presets,
  .how-long-form__actions {
    gap: 12px;
  }

  .how-long-form {
    grid-template-columns: minmax(170px, 1fr) minmax(150px, 1fr) auto;
    gap: 14px;
  }

  .how-long-button {
    padding: 12px 18px;
    font-size: 1rem;
  }

  .how-long-field__input {
    padding: 11px 13px;
    font-size: 1rem;
  }
}