:root {
  --color-bg: #0a0a0b;
  --color-surface: #131313;
  --color-text: #fafafa;
  --color-text-soft: rgba(250, 250, 250, 0.62);
  --color-border: rgba(230, 180, 80, 0.22);
  --color-border-soft: rgba(250, 250, 250, 0.1);
  --color-accent: #fbbf24;
  --color-accent-dark: #d97706;
  --color-accent-soft: rgba(251, 191, 36, 0.12);
  --gradient-gold: linear-gradient(90deg, #fcd34d, #fbbf24 45%, #d97706);
  --gradient-heading: linear-gradient(120deg, #f4dfa0 0%, #e6b450 42%, #b8860b 100%);
  --color-danger: #f87171;
  --color-danger-soft: rgba(248, 113, 113, 0.1);
  --color-carb: #38bdf8;
  --color-fat: #f87171;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 20px 48px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.app-header {
  padding: 20px 20px 0;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

.logo {
  display: block;
  height: 62px;
  width: auto;
  margin-bottom: 16px;
}

.progress-track {
  height: 2px;
  background: var(--color-border-soft);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-gold);
  border-radius: 999px;
  transition: width 0.35s ease;
}

.stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 48px;
}

.screen {
  display: none;
  width: 100%;
}

.screen.is-active {
  display: flex;
  justify-content: center;
  animation: fade-up 0.28s ease;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 32px 28px;
  width: 100%;
  max-width: 480px;
}

.card-intro {
  border: none;
  max-width: 520px;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 5px 10px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.eyebrow-success { margin-bottom: 8px; }

.step-tag {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

h1 {
  font-size: 26px;
  line-height: 1.25;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
  background: var(--gradient-heading);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: 21px;
  line-height: 1.3;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

h3 {
  font-size: 15px;
  margin: 0 0 12px;
}

.lead {
  color: var(--color-text-soft);
  font-size: 15px;
  margin: 0 0 28px;
}

.text-accent {
  color: var(--color-accent);
}

.hint {
  color: var(--color-text-soft);
  font-size: 14px;
  margin: 0 0 24px;
}

.fine-print {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-soft);
  margin: 14px 0 0;
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.field input {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-family: inherit;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.15s ease;
}

.field input::placeholder {
  color: rgba(250, 250, 250, 0.32);
}

.field input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.field-error {
  display: block;
  min-height: 16px;
  color: var(--color-danger);
  font-size: 12.5px;
  margin-top: 6px;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.option-card {
  padding: 14px 10px;
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.option-card:hover { border-color: var(--color-accent); }

.option-card.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.highlight-box {
  margin: 0 0 24px;
  padding: 12px 14px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}

.alert-box {
  margin: 0 0 18px;
  padding: 12px 14px;
  background: var(--color-danger-soft);
  border-left: 3px solid var(--color-danger);
  border-radius: 8px;
  font-size: 13px;
  color: var(--color-text);
  line-height: 1.5;
}

.alert-box--info {
  background: var(--color-accent-soft);
  border-left-color: var(--color-accent);
}

.option-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 4px;
}

.option-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  text-align: left;
  padding: 14px 16px;
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.option-row:hover { border-color: var(--color-accent); }

.option-row.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.option-row strong {
  font-size: 14.5px;
  color: var(--color-text);
}

.option-row span {
  font-size: 13px;
  color: var(--color-text-soft);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.nav-buttons {
  display: flex;
  gap: 10px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: filter 0.15s ease, transform 0.1s ease, opacity 0.15s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--gradient-gold);
  color: #0a0a0b;
  flex: 1;
}

.btn-primary:hover { filter: brightness(1.08); }

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-soft);
  border: 1.5px solid var(--color-border-soft);
}

.btn-ghost:hover { border-color: var(--color-text-soft); }

.btn-block { width: 100%; }

.btn-arrow {
  display: inline-block;
  margin-left: 4px;
  transition: transform 0.15s ease;
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* RESULTADOS */

.card-result h2 { margin-bottom: 20px; }

.result-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: stretch;
  margin-bottom: 20px;
}

.result-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-highlight {
  border: 1.5px solid var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  align-items: center;
  text-align: center;
  flex: 1;
}

.result-tile-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-text-soft);
}

.result-tile-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.result-tile-unit {
  font-size: 12px;
  color: var(--color-text-soft);
  font-weight: 600;
}

.macro-box {
  border: 1.5px solid var(--color-border-soft);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.macros-title { color: var(--color-text); margin: 0 0 12px; }

.macro-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.macro-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.macro-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.macro-dot--protein { background: var(--color-accent); }
.macro-dot--carb { background: var(--color-carb); }
.macro-dot--fat { background: var(--color-fat); }

.macro-name { flex: 1; min-width: 0; color: var(--color-text-soft); }
.macro-value { font-weight: 700; color: var(--color-text); white-space: nowrap; flex-shrink: 0; }

.disclaimer {
  font-size: 10.5px;
  color: var(--color-text-soft);
  margin-bottom: 20px;
}

.justificativa-box {
  padding: 16px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
}

.justificativa-fatos {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-soft);
}

.justificativa-pitch {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--color-border-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  font-weight: 500;
}

.justificativa-destaque {
  color: var(--color-accent);
  font-weight: 800;
}

.fine-print--tiny {
  font-size: 10.5px;
}

.btn-restart {
  margin-top: 10px;
}

@media (max-width: 400px) {
  .card { padding: 26px 20px; }
  h1 { font-size: 18px; }
  .card-intro .fine-print { font-size: 11px; }
  .result-columns { gap: 10px; }
  .result-tile-value { font-size: 24px; }
  .macros-title { font-size: 13.5px; }
  .macro-item { font-size: 12.5px; gap: 6px; }
  .macro-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
}