:root {
  --bg: #0a0a0a;
  --bg-pattern: #141414;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-border: rgba(255, 255, 255, 0.16);
  --text: #f5f5f7;
  --text-muted: rgba(245, 245, 247, 0.75);
  --text-faint: rgba(245, 245, 247, 0.55);

  --magenta: #e5326e;
  --purple: #7b3fe4;
  --orange: #f5a03c;

  --brand-gradient: linear-gradient(115deg, var(--magenta) 0%, var(--purple) 55%, var(--orange) 100%);

  --success: #3ddc84;
  --danger: #ff6161;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --font-display: "Chakra Petch", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-image:
    repeating-radial-gradient(circle at 20% 20%, var(--bg-pattern) 0, var(--bg-pattern) 1px, transparent 1px, transparent 60px),
    repeating-radial-gradient(circle at 80% 70%, var(--bg-pattern) 0, var(--bg-pattern) 1px, transparent 1px, transparent 80px);
  background-size: 140px 140px, 180px 180px;
}

.blob {
  position: fixed;
  width: 55vmax;
  height: 55vmax;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  z-index: 0;
  pointer-events: none;
}

.blob--top {
  top: -25vmax;
  left: -22vmax;
  background: radial-gradient(circle, var(--magenta) 0%, var(--purple) 60%, transparent 75%);
}

.blob--bottom {
  bottom: -28vmax;
  right: -24vmax;
  background: radial-gradient(circle, var(--orange) 0%, var(--magenta) 55%, transparent 75%);
}

.lines {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.12;
  background-image:
    radial-gradient(circle at 90% 15%, transparent 39%, rgba(255, 255, 255, 0.6) 40%, transparent 41%),
    radial-gradient(circle at 5% 85%, transparent 44%, rgba(255, 255, 255, 0.6) 45%, transparent 46%);
  background-size: 90vmax 90vmax, 70vmax 70vmax;
  background-repeat: no-repeat;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  padding: 16px 20px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.layout {
  width: 100%;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}

.hero__logo {
  display: block;
  height: 34px;
  width: auto;
  margin: 0 0 4px;
}

.hero__date {
  margin: 0;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__title {
  margin: 4px 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-display);
  text-transform: uppercase;
  line-height: 1.05;
}

.hero__title span:first-child {
  font-size: clamp(24px, 7vw, 36px);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.hero__title-accent {
  font-size: clamp(26px, 8vw, 40px);
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  margin: 2px 0 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.offer {
  margin-bottom: 10px;
}

.offer__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 5vw, 24px);
  letter-spacing: 0.02em;
  margin: 0 0 3px;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.offer__hint {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 16px 18px 16px;
  text-align: left;
}

.card__title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 17px;
  margin: 0 0 3px;
  text-align: center;
}

.card__subtitle {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

.field {
  margin-bottom: 10px;
  position: relative;
}

.field__label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 5px;
  letter-spacing: 0.02em;
}

.field__input {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 14px;
  font-size: 16px;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field__input::placeholder {
  color: var(--text-faint);
}

.field__input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(123, 63, 228, 0.25);
}

#cupomField.is-valid .field__input {
  border-color: var(--success);
  box-shadow: 0 0 0 3px rgba(61, 220, 132, 0.18);
}

#cupomField.is-invalid .field__input {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(255, 97, 97, 0.18);
}

.field__message {
  min-height: 15px;
  margin: 5px 2px 0;
  font-size: 12px;
}

#cupomField.is-valid .field__message {
  color: var(--success);
}

#cupomField.is-invalid .field__message {
  color: var(--danger);
}

.combobox {
  position: relative;
}

.combobox__list {
  position: absolute;
  z-index: 5;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: #161616;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  max-height: 220px;
  overflow-y: auto;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.combobox__option {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.combobox__option strong {
  color: var(--text);
  font-weight: 600;
}

.combobox__option span {
  color: var(--text-faint);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.combobox__option:hover,
.combobox__option.is-active {
  background: rgba(255, 255, 255, 0.08);
}

.combobox__empty {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text-faint);
}

.phone {
  display: flex;
  gap: 8px;
}

.phone__ddi {
  flex: 0 0 108px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 8px;
  font-size: 15px;
  outline: none;
}

.phone__number {
  flex: 1;
  min-width: 0;
}

.submit {
  width: 100%;
  margin-top: 4px;
  padding: 13px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0a0a0a;
  background: var(--brand-gradient);
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease, opacity 0.15s ease;
}

.submit:hover:not(:disabled) {
  filter: brightness(1.08);
}

.submit:active:not(:disabled) {
  transform: translateY(1px);
}

.submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.form__footnote {
  margin: 10px 2px 0;
  font-size: 11px;
  line-height: 1.45;
  color: var(--text-faint);
  text-align: center;
}

.proof {
  width: 100%;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.proof--split {
  display: flex;
  flex-direction: column;
}

.proof--mobile-first .proof__gallery {
  order: -1;
  margin-bottom: 16px;
}

.proof__title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 16px;
  margin: 0 0 6px;
}

.proof__lead {
  margin: 0 auto 16px;
  max-width: 50ch;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
}

.proof__paragraph {
  margin: 0 auto 10px;
  max-width: 50ch;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

.proof__paragraph:last-child {
  margin-bottom: 0;
}

.proof__speakers {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto 16px;
}

.proof__gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-areas:
    "a a"
    "b c";
  align-items: start;
  gap: 10px;
}

.proof__photo {
  margin: 0;
}

.proof__photo:nth-child(1) {
  grid-area: a;
}

.proof__photo:nth-child(2) {
  grid-area: b;
}

.proof__photo:nth-child(3) {
  grid-area: c;
}

.proof__photo picture {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--surface-border);
}

.proof__photo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.proof__photo:nth-child(1) img {
  aspect-ratio: 2 / 1;
}

.proof__photo:nth-child(2) img,
.proof__photo:nth-child(3) img {
  aspect-ratio: 1 / 1;
}

.proof__photo figcaption {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-faint);
  text-align: left;
}

.footer {
  width: 100%;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__logo {
  display: block;
  height: 28px;
  width: auto;
  opacity: 0.85;
}

@media (min-width: 640px) {
  .page {
    padding-top: 64px;
  }

  .card {
    padding: 36px 40px 30px;
  }

  .footer {
    margin-top: 60px;
  }
}

@media (min-width: 900px) {
  .page {
    max-width: 1040px;
  }

  .layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 56px;
  }

  .layout__intro {
    text-align: left;
  }

  .hero {
    align-items: flex-start;
  }

  .hero__logo {
    height: 46px;
  }

  .offer {
    text-align: left;
  }

  .footer {
    margin-top: 80px;
  }

  .footer__logo {
    height: 32px;
  }

  .proof--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
    text-align: left;
  }

  .proof--split .proof__text {
    margin-bottom: 0;
  }

  .proof--split .proof__lead,
  .proof--split .proof__paragraph {
    margin-left: 0;
    margin-right: 0;
    max-width: none;
  }

  .proof--split .proof__speakers {
    margin: 0;
  }

  .proof--reverse .proof__text {
    order: 2;
  }

  .proof--mobile-first .proof__gallery {
    order: 0;
    margin-bottom: 0;
  }
}