@font-face {
  font-family: "Rubik";
  src: url("./assets/fonts/Rubik-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Rubik";
  src: url("./assets/fonts/Rubik-Bold.woff2") format("woff2");
  font-weight: 700 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --surface: #ffffff;
  --line: #e1e1e1;
  --line-strong: #cfcfcf;
  --text: #111111;
  --muted: #666666;
  --black: #111111;
  --blue: #2d67fd;
  --danger: #bb3f3f;
  --shadow: 0 18px 42px rgba(17, 17, 17, 0.08);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  font-family: "Rubik", "Segoe UI", Arial, sans-serif;
  background: #ffffff;
}

button,
input,
select {
  font: inherit;
}

.page {
  width: min(1280px, calc(100% - 32px));
  margin: 28px auto 48px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 24px;
  align-items: stretch;
}

.tpv-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.form-panel,
.lead-panel {
  padding: 30px;
}

.lead-panel {
  margin-top: 24px;
}

.preview-panel {
  display: flex;
  flex-direction: column;
  padding: 24px;
}

.panel__header {
  border-left: 5px solid var(--blue);
  padding-left: 16px;
}

.panel__header h1,
.panel__header h2 {
  margin: 0;
  color: var(--black);
  font-size: 28px;
  font-weight: 800;
}

.mix-rows {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.mix-row {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.mix-row__title {
  margin-bottom: 14px;
  color: var(--black);
  font-size: 18px;
  font-weight: 800;
}

.mix-row__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(190px, 1fr);
  gap: 14px;
  align-items: end;
}

.mix-row__range-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px;
  gap: 12px;
  align-items: center;
  min-width: 0;
}

.mix-row__range {
  width: 100%;
  min-width: 0;
  height: 34px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}

.mix-row__range::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background: var(--blue);
}

.mix-row__range::-webkit-slider-thumb {
  width: 24px;
  height: 24px;
  margin-top: -8px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  background: var(--blue);
  cursor: grab;
  -webkit-appearance: none;
}

.mix-row__range:active::-webkit-slider-thumb {
  cursor: grabbing;
}

.mix-row__range::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: var(--blue);
}

.mix-row__range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  background: var(--blue);
  cursor: grab;
}

.mix-row__hint {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field__label {
  color: var(--black);
  font-size: 14px;
  font-weight: 700;
}

.field__control,
.mix-row__select,
.mix-row__number {
  width: 100%;
  min-height: 50px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text);
}

.field__control::placeholder {
  color: #9aa79a;
}

.field__control:focus,
.mix-row__select:focus,
.mix-row__number:focus,
.mix-row__range:focus {
  outline: none;
  border-color: var(--black);
  box-shadow: 0 0 0 4px rgba(17, 17, 17, 0.12);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

#generate-button,
#request-form .button,
.button--primary,
.button--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  min-height: 50px;
  padding: 13px 20px;
  border: 1px solid #111111;
  border-radius: 999px;
  background: #111111;
  color: #ffffff;
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  text-decoration: none;
  box-shadow: none;
  cursor: pointer;
}

#generate-button:hover,
#generate-button:focus,
#request-form .button:hover,
#request-form .button:focus {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
  transform: translateY(-1px);
  box-shadow: none;
}

#generate-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.preview-frame {
  flex: none;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
}

#mix-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  aspect-ratio: 1 / 1;
}

.summary {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.summary__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #ffffff;
}

.summary__swatch {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
}

.summary__text,
.form-note {
  font-size: 14px;
  line-height: 1.45;
}

.form-note {
  min-height: 22px;
  margin: 16px 0 0;
}

.form-note.is-error {
  color: var(--danger);
}

.form-note.is-success {
  color: var(--black);
}

#request-form .tpv-agree {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  color: #111111;
  font-size: 14px;
}

#request-form .field__error {
  color: #bb3f3f;
  font-size: 13px;
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page {
    width: min(100% - 16px, 1280px);
    margin-top: 16px;
    margin-bottom: 28px;
  }

  .form-panel,
  .lead-panel,
  .preview-panel {
    padding: 22px;
  }

  .panel__header h1,
  .panel__header h2 {
    font-size: 25px;
    line-height: 1.08;
  }

  .contact-grid,
  .mix-row__grid {
    grid-template-columns: 1fr;
  }

  .mix-row__range-wrap {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .mix-row__range {
    width: min(100%, 280px);
  }

  .mix-row__number {
    max-width: 96px;
    padding-right: 10px;
    padding-left: 10px;
  }
}