.stm-contact-dialog[hidden] {
  display: none !important;
}

body.stm-contact-dialog-open {
  overflow: hidden;
}

.stm-contact-dialog {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  display: grid;
  place-items: center;
  box-sizing: border-box;
  padding: 20px;
  background: rgba(24, 26, 29, 0.62);
  backdrop-filter: blur(5px);
}

.stm-contact-dialog__panel {
  position: relative;
  width: min(680px, 100%);
  max-height: min(880px, calc(100vh - 40px));
  overflow: auto;
  box-sizing: border-box;
  border: 1px solid rgba(243, 158, 50, 0.36);
  border-radius: 24px;
  background: #fff;
  color: #24272b;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
  font-family: Arial, sans-serif;
}

.stm-contact-dialog__header {
  padding: 26px 72px 17px 28px;
  border-bottom: 1px solid #eee7df;
  background: linear-gradient(135deg, #fffaf4, #fff);
}

.stm-contact-dialog__header h2 {
  margin: 0 0 6px;
  color: #23262a;
  font-size: clamp(24px, 4vw, 32px);
  line-height: 1.15;
}

.stm-contact-dialog__header p {
  margin: 0;
  color: #72777f;
  font-size: 14px;
  line-height: 1.5;
}

.stm-contact-dialog__close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid #eadfd4;
  border-radius: 13px;
  background: #fff;
  color: #34383d;
  font-size: 27px;
  line-height: 1;
  cursor: pointer;
}

.stm-contact-dialog__form {
  display: grid;
  gap: 16px;
  padding: 22px 28px 28px;
}

.stm-contact-dialog__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stm-contact-dialog__field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.stm-contact-dialog__field label,
.stm-contact-dialog__legend {
  color: #35393e;
  font-size: 13px;
  font-weight: 800;
}

.stm-contact-dialog__field input,
.stm-contact-dialog__field textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #d9dce1;
  border-radius: 13px;
  background: #fff;
  color: #25282c;
  padding: 12px 14px;
  font: inherit;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

/* v312: custom topic dropdown in the visual language of the site. */
.stm-contact-dialog__field--topic {
  position: relative;
}

.stm-contact-dialog__topic {
  position: relative;
}

.stm-contact-dialog__topic-button {
  width: 100%;
  min-height: 46px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid #ead8c2;
  border-radius: 13px;
  padding: 11px 13px 11px 14px;
  background: linear-gradient(180deg, #fffdf9 0%, #fff8ee 100%);
  color: #2b2d30;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
  font: inherit;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.stm-contact-dialog__topic-button:hover {
  border-color: #f0a14b;
  background: linear-gradient(180deg, #fffaf3 0%, #fff3e2 100%);
}

.stm-contact-dialog__topic-button:focus-visible,
.stm-contact-dialog__topic.is-open .stm-contact-dialog__topic-button {
  border-color: #f58220;
  box-shadow: 0 0 0 3px rgba(245, 130, 32, .16), 0 8px 20px rgba(111, 65, 24, .08);
}

.stm-contact-dialog__topic-arrow {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(245, 130, 32, .10);
  color: #d9680b;
  transition: transform .18s ease, background .18s ease;
}

.stm-contact-dialog__topic-arrow svg {
  width: 11px;
  height: 7px;
  overflow: visible;
}

.stm-contact-dialog__topic-arrow path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stm-contact-dialog__topic.is-open .stm-contact-dialog__topic-arrow {
  transform: rotate(180deg);
  background: rgba(245, 130, 32, .18);
}

.stm-contact-dialog__topic-menu[hidden] {
  display: none !important;
}

.stm-contact-dialog__topic-menu {
  position: absolute;
  z-index: 5;
  top: calc(100% + 7px);
  left: 0;
  right: 0;
  display: grid;
  gap: 3px;
  box-sizing: border-box;
  padding: 7px;
  border: 1px solid rgba(226, 148, 67, .48);
  border-radius: 14px;
  background: #fffaf3;
  box-shadow: 0 18px 42px rgba(56, 38, 21, .18);
}

.stm-contact-dialog__topic-menu button {
  width: 100%;
  border: 0;
  border-radius: 10px;
  padding: 9px 11px;
  background: transparent;
  color: #34302c;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: background .14s ease, color .14s ease, transform .14s ease;
}

.stm-contact-dialog__topic-menu button:hover,
.stm-contact-dialog__topic-menu button:focus-visible {
  background: #fff0dc;
  color: #b95000;
}

.stm-contact-dialog__topic-menu button[aria-selected="true"] {
  background: linear-gradient(135deg, #ffb248, #f47a13);
  color: #fff;
  box-shadow: 0 6px 14px rgba(244, 122, 19, .20);
}

.stm-contact-dialog__field textarea {
  min-height: 118px;
  resize: vertical;
  line-height: 1.5;
}

.stm-contact-dialog__field input:focus,
.stm-contact-dialog__field textarea:focus {
  border-color: #f39e32;
  box-shadow: 0 0 0 3px rgba(243, 158, 50, 0.16);
}

.stm-contact-dialog__hint {
  margin: -2px 0 0;
  color: #777d85;
  font-size: 12px;
  line-height: 1.45;
}

.stm-contact-dialog__contact-error,
.stm-contact-dialog__status {
  min-height: 18px;
  margin: 0;
  color: #b42318;
  font-size: 13px;
  line-height: 1.45;
}

.stm-contact-dialog__contact-error:empty,
.stm-contact-dialog__status:empty {
  min-height: 0;
}

.stm-contact-dialog__status.is-success {
  padding: 13px 14px;
  border: 1px solid #b8ddc3;
  border-radius: 13px;
  background: #eef9f1;
  color: #176b35;
  font-weight: 700;
}

.stm-contact-dialog__agree {
  display: grid;
  grid-template-columns: 19px 1fr;
  gap: 10px;
  align-items: start;
  color: #666c73;
  font-size: 12px;
  line-height: 1.5;
}

.stm-contact-dialog__agree input {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: #f58220;
}

.stm-contact-dialog__agree a,
.stm-contact-dialog__contacts-link {
  color: #c65b09;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.stm-contact-dialog__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 2px;
}

.stm-contact-dialog__submit {
  min-width: 150px;
  border: 0;
  border-radius: 13px;
  padding: 13px 20px;
  background: linear-gradient(135deg, #ffb248, #f47a13);
  color: #fff;
  box-shadow: 0 9px 24px rgba(244, 122, 19, 0.26);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.stm-contact-dialog__submit:disabled {
  cursor: wait;
  opacity: 0.7;
}

.stm-contact-dialog__close:focus-visible,
.stm-contact-dialog__submit:focus-visible,
.stm-contact-dialog__contacts-link:focus-visible,
.stm-contact-dialog__agree a:focus-visible {
  outline: 3px solid rgba(243, 158, 50, 0.38);
  outline-offset: 3px;
}

@media (max-width: 620px) {
  .stm-contact-dialog {
    align-items: end;
    padding: 0;
  }

  .stm-contact-dialog__panel {
    width: 100%;
    max-height: 94vh;
    border-radius: 22px 22px 0 0;
  }

  .stm-contact-dialog__header {
    padding: 22px 66px 15px 20px;
  }

  .stm-contact-dialog__form {
    gap: 14px;
    padding: 19px 20px 24px;
  }

  .stm-contact-dialog__row {
    grid-template-columns: 1fr;
  }

  .stm-contact-dialog__actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .stm-contact-dialog__submit {
    width: 100%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .stm-contact-dialog__panel {
    animation: stm-contact-dialog-in 0.2s ease-out;
  }

  @keyframes stm-contact-dialog-in {
    from { opacity: 0; transform: translateY(14px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
}

/* v313: проходящий отблеск на всех кнопках диалога */
.stm-contact-dialog__topic-button,
.stm-contact-dialog__topic-menu button,
.stm-contact-dialog__submit {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.stm-contact-dialog__close::before,
.stm-contact-dialog__topic-button::before,
.stm-contact-dialog__topic-menu button::before,
.stm-contact-dialog__submit::before {
  content: "";
  position: absolute;
  inset: -18% -42%;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(112deg,
    transparent 28%,
    rgba(255, 255, 255, .06) 38%,
    rgba(255, 255, 255, .78) 49%,
    rgba(255, 255, 255, .15) 59%,
    transparent 70%);
  opacity: 0;
  transform: translateX(-108%) skewX(-16deg);
  pointer-events: none;
}

@keyframes stmDialogButtonShine {
  from { transform: translateX(-108%) skewX(-16deg); }
  to { transform: translateX(108%) skewX(-16deg); }
}

@media (hover: hover) and (pointer: fine) {
  .stm-contact-dialog__close:hover::before,
  .stm-contact-dialog__close:focus-visible::before,
  .stm-contact-dialog__topic-button:hover::before,
  .stm-contact-dialog__topic-button:focus-visible::before,
  .stm-contact-dialog__topic.is-open .stm-contact-dialog__topic-button::before,
  .stm-contact-dialog__topic-menu button:hover::before,
  .stm-contact-dialog__topic-menu button:focus-visible::before,
  .stm-contact-dialog__topic-menu button[aria-selected="true"]::before,
  .stm-contact-dialog__submit:hover::before,
  .stm-contact-dialog__submit:focus-visible::before {
    opacity: 1;
    animation: stmDialogButtonShine .82s ease both;
  }
}

.stm-contact-dialog__close {
  position: absolute;
  top: 18px;
  right: 18px;
  left: auto;
  z-index: 3;
  overflow: hidden;
  isolation: isolate;
}

.stm-contact-dialog__close::before {
  content: "";
  position: absolute;
  inset: -18% -42%;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(112deg,
    transparent 28%,
    rgba(255, 255, 255, .06) 38%,
    rgba(255, 255, 255, .78) 49%,
    rgba(255, 255, 255, .15) 59%,
    transparent 70%);
  opacity: 0;
  transform: translateX(-108%) skewX(-16deg);
  pointer-events: none;
}

@media (max-width: 620px) {
  .stm-contact-dialog__close {
    top: 14px;
    right: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stm-contact-dialog__close::before,
  .stm-contact-dialog__topic-button::before,
  .stm-contact-dialog__topic-menu button::before,
  .stm-contact-dialog__submit::before {
    display: none;
  }
}