/* ─── Variables ─── */
:root {
  --ch-orange:      #FF632B;
  --ch-orange-dark: #691500;
  --ch-cream:       #F9F3E9;
  --ch-dark:        #260700;
  --ch-white-warm:  #F8F2E8;
  --ch-gray:        #6E675D;
  --ch-card-bg:     #FDFCF9;
  --ch-border:      rgba(38,7,0,0.1);
  --ch-shadow:      0 2px 8px rgba(38,7,0,0.08);
  --radius-card:    12px;
  --radius-pill:    50px;
  --t:              300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Plus Jakarta Sans', Inter, sans-serif;
  background: var(--ch-cream);
  color: var(--ch-dark);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── Screens ─── */
.screen {
  display: none;
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}
.screen--active { display: flex; }

/* ─── Welcome ─── */
.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 560px;
  gap: 20px;
  animation: fadeUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.welcome__logo-video {
  height: 36px;
  width: auto;
  display: block;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--ch-orange);
  letter-spacing: -0.02em;
}

.welcome__badge {
  display: inline-block;
  background: rgba(255,99,43,0.1);
  color: var(--ch-orange);
  border: 1px solid rgba(255,99,43,0.2);
  border-radius: 99px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.welcome__title {
  font-weight: 800;
  font-size: clamp(2.8rem, 9vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--ch-dark);
}

.welcome__subtitle {
  font-size: 1.05rem;
  color: var(--ch-gray);
  line-height: 1.65;
}

.welcome__footnote {
  font-size: 0.8rem;
  color: var(--ch-gray);
  opacity: 0.7;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--t), color var(--t), border-color var(--t), transform 0.1s;
  border-radius: var(--radius-pill);
  padding: 14px 32px;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--ch-orange);
  color: #fff;
}
.btn--primary:hover { background: var(--ch-orange-dark); }
.btn--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn--ghost {
  background: transparent;
  color: var(--ch-gray);
  border: 1px solid var(--ch-border);
  font-size: 0.875rem;
  padding: 10px 24px;
}
.btn--ghost:hover { border-color: var(--ch-orange); color: var(--ch-orange); }

.btn--lg { padding: 18px 44px; font-size: 1.1rem; }
.btn--block { width: 100%; }

/* ─── Progress bar ─── */
.progress-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
}

.progress-bar__track {
  flex: 1;
  height: 5px;
  background: rgba(38,7,0,0.08);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: var(--ch-orange);
  border-radius: 99px;
  transition: width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

.progress-bar__label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ch-gray);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

/* ─── Quiz shell ─── */
.quiz-shell {
  width: 100%;
  max-width: 700px;
  animation: fadeUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Question ─── */
.question {
  animation: slideIn 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(36px); }
  to   { opacity: 1; transform: translateX(0); }
}

.question__text {
  font-weight: 800;
  font-size: clamp(1.3rem, 3.5vw, 1.75rem);
  line-height: 1.25;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
  color: var(--ch-dark);
}

.question__options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.question__options--single-col {
  grid-template-columns: 1fr;
  max-width: 520px;
}

.option-card {
  background: var(--ch-card-bg);
  border: 1.5px solid var(--ch-border);
  border-radius: var(--radius-card);
  padding: 18px 22px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ch-dark);
  cursor: pointer;
  transition: border-color var(--t), background var(--t), box-shadow var(--t), transform 0.1s;
  text-align: left;
  line-height: 1.45;
  box-shadow: var(--ch-shadow);
  position: relative;
  overflow: hidden;
}

.option-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,99,43,0.04);
  opacity: 0;
  transition: opacity var(--t);
}

.option-card:hover {
  border-color: var(--ch-orange);
  box-shadow: 0 4px 16px rgba(255,99,43,0.12);
}
.option-card:hover::before { opacity: 1; }

.option-card:active { transform: scale(0.98); }

.option-card--selected {
  border-color: var(--ch-orange);
  background: rgba(255,99,43,0.06);
  box-shadow: 0 0 0 3px rgba(255,99,43,0.15);
}
.option-card--selected::before { opacity: 1; }

/* ─── Gate ─── */
.gate {
  width: 100%;
  max-width: 460px;
  background: var(--ch-card-bg);
  border: 1px solid var(--ch-border);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(38,7,0,0.1);
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
  animation: fadeUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.gate__icon { font-size: 2.75rem; line-height: 1; }

.gate__title {
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
  color: var(--ch-dark);
}

.gate__subtitle {
  color: var(--ch-gray);
  font-size: 0.95rem;
  line-height: 1.55;
}

.gate__form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
  margin-top: 4px;
}

/* ─── Form fields ─── */
.form-field { display: flex; flex-direction: column; gap: 5px; }

.form-field__label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ch-dark);
  letter-spacing: 0.02em;
}

.form-field__input {
  background: #fff;
  border: 1.5px solid rgba(38,7,0,0.15);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--ch-dark);
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  width: 100%;
}

.form-field__input::placeholder { color: rgba(110,103,93,0.45); }

.form-field__input:focus {
  border-color: var(--ch-orange);
  box-shadow: 0 0 0 3px rgba(255,99,43,0.12);
}

.form-field__input--error {
  border-color: #c0392b;
  box-shadow: none;
}

.form-field__error {
  font-size: 0.78rem;
  color: #c0392b;
  font-weight: 600;
  min-height: 14px;
  display: block;
}

.gate__privacy {
  font-size: 0.75rem;
  color: var(--ch-gray);
  opacity: 0.65;
  text-align: center;
}

/* ─── Result ─── */
.screen--result {
  align-items: flex-start;
  padding-top: 40px;
  padding-bottom: 60px;
}

.result-wrapper {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 56px;
  animation: fadeUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.result {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.result__eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ch-gray);
}

.result__badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.result__type-badge {
  display: inline-block;
  border-radius: 99px;
  padding: 5px 16px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.result__type-badge--carrera     { background: var(--ch-orange); color: #fff; }
.result__type-badge--diplomatura { background: #1a1a2e; color: #fff; }
.result__type-badge--curso       { background: rgba(38,7,0,0.08); color: var(--ch-dark); }

.result__area-badge {
  display: inline-block;
  background: transparent;
  color: var(--ch-gray);
  border: 1px solid var(--ch-border);
  border-radius: 99px;
  padding: 5px 14px;
  font-size: 0.78rem;
  font-weight: 600;
}

.result__course-name {
  font-weight: 800;
  font-size: clamp(1.75rem, 5vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--ch-dark);
  max-width: 560px;
}

.result__description {
  color: var(--ch-gray);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 480px;
}

.result__secondary {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.link-secondary {
  color: var(--ch-gray);
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t);
}
.link-secondary:hover { color: var(--ch-orange); }

/* ─── Suggestions ─── */
.suggestions__title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ch-gray);
  margin-bottom: 16px;
}

.suggestions__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.sugg-card {
  background: var(--ch-card-bg);
  border: 1.5px solid var(--ch-border);
  border-radius: var(--radius-card);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--ch-shadow);
  text-decoration: none;
  transition: border-color var(--t), box-shadow var(--t), transform 0.1s;
}
.sugg-card:hover {
  border-color: var(--ch-orange);
  box-shadow: 0 4px 20px rgba(255,99,43,0.1);
  transform: translateY(-2px);
}

.sugg-card__type {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ch-orange);
}

.sugg-card__name {
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ch-dark);
  flex: 1;
}

.sugg-card__link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ch-orange);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--t);
}
.sugg-card:hover .sugg-card__link { color: var(--ch-orange-dark); }

/* ─── Responsive ─── */
@media (max-width: 640px) {
  body { align-items: flex-start; }

  .screen { padding: 20px 16px; align-items: flex-start; padding-top: 28px; }

  .welcome { gap: 16px; }
  .welcome__title { font-size: 2.6rem; }

  .question__options { grid-template-columns: 1fr; }
  .question__options--single-col { max-width: 100%; }

  .quiz-shell { padding: 0; }

  .gate { padding: 28px 20px; border-radius: 16px; }
  .gate__title { font-size: 1.5rem; }

  .result__course-name { font-size: 1.6rem; }

  .suggestions__list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 400px) {
  .suggestions__list { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .btn--lg { padding: 15px 28px; font-size: 1rem; }
}