@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600;700;800;900&display=swap');

:root {
  --black: #050505;
  --text: #0a0a0a;
  --line: #8b8b8b;
  --muted: #687078;
  --error: #9f2323;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: 'Montserrat', Arial, sans-serif;
}

input,
select,
textarea,
button {
  font: inherit;
}

.gdv-page {
  width: min(100% - 32px, 820px);
  margin: 0 auto;
  padding: 68px 0 70px;
}

.hero {
  width: min(100%, 690px);
  margin: 0 auto;
}

.hero h1 {
  margin: 0;
  font-size: clamp(60px, 8.6vw, 88px);
  line-height: .82;
  letter-spacing: -4.8px;
  font-weight: 900;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 30px;
  font-size: 14px;
  line-height: 1.2;
  font-weight: 700;
}

.hero-image {
  overflow: hidden;
  border-radius: 7px;
  background: #111;
}

.hero-image img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center 50%;
}

.form-section {
  width: min(100%, 720px);
  margin: 48px auto 0;
}

.form-section h2 {
  margin: 0 0 28px;
  font-size: clamp(31px, 5vw, 42px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -1.4px;
}

.gender-row {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 31px;
  font-size: 15px;
  font-weight: 700;
}

.gender-title {
  min-width: 40px;
}

.radio-option,
.day-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.radio-option input,
.day-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.custom-radio,
.custom-check {
  width: 18px;
  height: 18px;
  border: 1.6px solid #111;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  flex: 0 0 18px;
}

.radio-option input:checked + .custom-radio::after,
.day-option input:checked + .custom-check::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: #111;
}

.field {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: end;
  gap: 8px;
  margin-bottom: 17px;
}

.field label,
.birth-label {
  padding-bottom: 5px;
  font-size: 15px;
  line-height: 1.15;
  font-weight: 700;
}

.field input,
.field select,
.field textarea,
.birth-select select {
  width: 100%;
  min-width: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  background: transparent;
  color: #111;
  box-shadow: none;
}

.field input,
.field select,
.birth-select select {
  height: 34px;
  padding: 4px 26px 4px 4px;
}

.field textarea {
  min-height: 63px;
  padding: 7px 4px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.birth-select select:focus {
  border-bottom-color: #000;
  border-bottom-width: 2px;
}

.select-wrap,
.birth-select {
  position: relative;
  min-width: 0;
}

.select-wrap::after,
.birth-select::after {
  content: '';
  position: absolute;
  right: 5px;
  bottom: 13px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid #111;
  border-bottom: 1.5px solid #111;
  transform: rotate(45deg);
  pointer-events: none;
}

.field select,
.birth-select select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.field--textarea {
  align-items: start;
}

.field--textarea label {
  padding-top: 7px;
}

.field--stack {
  grid-template-columns: max-content minmax(0, 1fr);
}

.birth-row {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: end;
  gap: 10px;
  margin-bottom: 17px;
}

.birth-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.birth-select {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: end;
  gap: 6px;
}

.birth-select span {
  padding-bottom: 5px;
  font-size: 14px;
  font-weight: 700;
}

.birth-select::after {
  display: none;
}

.birth-select select {
  padding-right: 4px;
}

.days-fieldset {
  margin: 22px 0 26px;
  padding: 0;
  border: 0;
}

.days-fieldset legend {
  margin-bottom: 15px;
  padding: 0;
  font-size: 15px;
  font-weight: 700;
}

.days-grid {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 15px 28px;
}

.day-option {
  font-size: 14px;
  font-weight: 700;
}

.captcha-wrap {
  margin: 25px 0 12px;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 164px;
  min-height: 44px;
  margin-top: 6px;
  padding: 10px 25px;
  border: 0;
  border-radius: 999px;
  background: var(--black);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease;
}

.submit-btn:hover {
  opacity: .86;
}

.submit-btn:active {
  transform: translateY(1px);
}

.submit-btn:disabled {
  opacity: .6;
  cursor: default;
}

.result-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.result-card {
  width: min(100%, 640px);
  text-align: center;
}

.result-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #000;
  color: #fff;
  font-size: 38px;
  font-weight: 800;
}

.result-card h1 {
  margin: 0;
  font-size: clamp(54px, 9vw, 82px);
  line-height: .9;
  letter-spacing: -3.5px;
  font-weight: 900;
}

.result-card p {
  margin: 23px 0 0;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 700;
}

.result-card .result-secondary {
  margin-top: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.result-error .result-icon {
  background: var(--error);
}

.back-btn {
  display: inline-flex;
  margin-top: 28px;
  padding: 11px 22px;
  border-radius: 999px;
  background: #000;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 640px) {
  .gdv-page {
    width: min(100% - 24px, 820px);
    padding: 34px 0 50px;
  }

  .hero h1 {
    font-size: clamp(48px, 14.2vw, 54px);
    line-height: .84;
    letter-spacing: -3px;
  }

  .hero p {
    margin-top: 20px;
    font-size: 12px;
  }

  .form-section {
    margin-top: 40px;
  }

  .form-section h2 {
    font-size: 32px;
  }

  .gender-row {
    gap: 20px;
    margin-bottom: 27px;
    font-size: 13.5px;
  }

  .field {
    margin-bottom: 15px;
  }

  .field label,
  .birth-label,
  .days-fieldset legend {
    font-size: 13.5px;
  }

  .birth-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .birth-fields {
    gap: 10px;
  }

  .birth-select {
    grid-template-columns: max-content minmax(0, 1fr);
    gap: 4px;
  }

  .birth-select span {
    font-size: 12px;
  }

  .field--stack {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .field--stack label {
    padding-bottom: 0;
  }

  .days-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
  }

  .day-option {
    font-size: 13.5px;
  }

  .captcha-wrap {
    overflow-x: auto;
  }

  .result-card h1 {
    font-size: 58px;
  }
}


/* ==========================================
   DESKTOP
   Maqueta PC - mantiene intacto el mobile
   ========================================== */

@media (min-width: 641px) {
  .gdv-page {
    width: min(100% - 64px, 1180px);
    padding: 76px 0 70px;
  }

  .desktop-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 64px;
    align-items: start;
  }

  .hero {
    width: 100%;
    margin: 0;
  }

  .hero h1 {
    font-size: clamp(66px, 6.2vw, 88px);
    line-height: .82;
    letter-spacing: -4.8px;
  }

  .hero p {
    max-width: 520px;
    margin: 22px 0 28px;
    font-size: 14px;
  }

  .hero-image {
    width: 100%;
  }

  .hero-image img {
    aspect-ratio: 1.34 / 1;
    object-fit: cover;
    object-position: center 50%;
  }

  .form-section {
    width: 100%;
    margin: 0;
  }

  .form-section h2 {
    margin-bottom: 28px;
    font-size: clamp(34px, 3vw, 44px);
  }

  .gender-row {
    margin-bottom: 24px;
    gap: 25px;
    font-size: 14px;
  }

  .field {
    margin-bottom: 14px;
  }

  .field label,
  .birth-label,
  .days-fieldset legend {
    font-size: 13px;
  }

  .field input,
  .field select,
  .birth-select select {
    height: 31px;
  }

  .field textarea {
    min-height: 55px;
  }

  .birth-row {
    margin-bottom: 14px;
  }

  .birth-fields {
    gap: 10px;
  }

  .birth-select {
    gap: 4px;
  }

  .birth-select span {
    font-size: 12px;
  }

  .field--stack {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .field--stack label {
    padding-bottom: 0;
  }

  .days-fieldset {
    margin: 18px 0 20px;
  }

  .days-fieldset legend {
    margin-bottom: 12px;
  }

  .days-grid {
    grid-template-columns: repeat(4, max-content);
    gap: 12px 20px;
  }

  .day-option {
    font-size: 12.5px;
  }

  .custom-radio,
  .custom-check {
    width: 16px;
    height: 16px;
    flex-basis: 16px;
  }

  .radio-option input:checked + .custom-radio::after,
  .day-option input:checked + .custom-check::after {
    inset: 3px;
  }

  .captcha-wrap {
    margin: 18px 0 10px;
  }

  .submit-btn {
    margin-top: 4px;
  }
}