/* =======================
   VARIÁVEIS DE COR E FONTE
   ======================= */
:root {
  --bg-gradient: linear-gradient(135deg, #F5F7FA 0%, #E6E9F0 100%);
  --color-primary: #5E4CE6;
  --color-secondary: #7680D1;
  --color-accent: #A0A7E6;
  --color-text-light: #FFFFFF;
  --color-text-title: #231971;
  --color-text-body: #2A2742;
  --color-card-bg: rgba(250, 250, 250, 0.25);
  --color-border-light: rgba(255, 255, 255, 0.4);
  --color-border-dark: rgba(0, 0, 0, 0.1);
  --font-family-title: 'Outfit', sans-serif;
  --font-family-body: 'Arimo', sans-serif;
  --font-size-base: 16px;
  --radius-base: 12px;
  --transition-base: 0.3s ease;
}

/* =======================
   ESTILOS GERAIS DE BODY
   ======================= */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  background: var(--bg-gradient);
  color: var(--color-text-body);
  transition: background var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 16px;
  box-sizing: border-box;
}

.container {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  backdrop-filter: blur(12px) saturate(180%);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-base);
  padding: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  box-sizing: border-box;
}

/* =======================
   HEADER
   ======================= */
.header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 16px;
}

/* =======================
   TÍTULO E SUBTÍTULO
   ======================= */
h1 {
  text-align: center;
  font-family: var(--font-family-title);
  font-weight: 800;
  font-size: 2rem;
  color: var(--color-text-title);
  margin: 0 0 10px 0;
  padding: 8px 12px;
  border-radius: var(--radius-base);
  background-color: rgba(255, 255, 255, 0.2);
  max-width: 100%;
  box-sizing: border-box;
}

.subtitle, p {
  text-align: center;
  font-family: var(--font-family-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-body);
  margin-bottom: 16px;
  padding: 6px 12px;
  border-radius: var(--radius-base);
  background-color: rgba(255, 255, 255, 0.15);
  max-width: 100%;
  box-sizing: border-box;
}

h2, h3 {
  text-align: center;
  font-family: var(--font-family-title);
  font-weight: 800;
  color: var(--color-text-title);
}

/* =======================
   INTRO SECTION
   ======================= */
#intro {
  margin-bottom: 24px;
}

#intro h2 {
  margin-bottom: 10px;
  font-size: 1.8rem;
}

#intro p {
  line-height: 1.6;
}

/* =======================
   TIMER SECTION
   ======================= */
#timerSection {
  text-align: center;
  margin-bottom: 24px;
}

#timerToggle {
  background: var(--color-primary);
  color: var(--color-text-light);
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-base);
  cursor: pointer;
  margin-bottom: 12px;
  font-family: var(--font-family-body);
  font-weight: 600;
  transition: background var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

#timerToggle:hover {
  background: var(--color-accent);
}

#timerDisplay {
  font-family: var(--font-family-title);
  font-weight: 800;
  font-size: 1.8rem;
  padding: 12px;
  color: var(--color-text-light);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  word-wrap: break-word;
  box-sizing: border-box;
}

/* =======================
   FORMULÁRIO DE JEJUM
   ======================= */
form {
  margin-bottom: 16px;
}

form section {
  margin-bottom: 12px;
}

label {
  display: block;
  font-family: var(--font-family-body);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text-body);
}

.input-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

input, select, button {
  width: 100%;
  padding: 8px;
  font-family: var(--font-family-body);
  font-size: 0.9rem;
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border-dark);
  background-color: rgba(255, 255, 255, 0.7);
  color: var(--color-text-body);
  transition: border var(--transition-base), background var(--transition-base);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  box-sizing: border-box;
}

input:focus, select:focus, button:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: #FFFFFF;
}

/* Radio group */
.radio-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  padding: 8px;
  border-radius: var(--radius-base);
}

.radio-group span {
  margin-right: 12px;
}

input[type="radio"] {
  width: auto;
  margin-right: 6px;
}

/* Botão avançado */
.avancado-toggle {
  background: var(--color-secondary);
  color: var(--color-text-light);
  font-family: var(--font-family-body);
  font-weight: 600;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: background var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

.avancado-toggle:hover {
  background: var(--color-accent);
}

#avancado {
  display: none;
  padding: 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-base);
  margin-top: 8px;
}

/* Botão calcular */
.calcular-btn {
  background: var(--color-primary);
  color: var(--color-text-light);
  font-family: var(--font-family-body);
  border: none;
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-base);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: background var(--transition-base), transform var(--transition-base);
}

.calcular-btn:hover {
  background: var(--color-accent);
  transform: translateY(-1px);
}

/* =======================
   ÁREA DE RESULTADOS
   ======================= */
#resultado {
  margin-top: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.stats-card {
  position: relative;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-base);
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
}

.stats-card .title {
  font-family: var(--font-family-title);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-text-title);
  margin-bottom: 8px;
}

.stats-card .value {
  font-family: var(--font-family-body);
  font-size: 1.1rem;
  color: var(--color-text-body);
  line-height: 1.4;
}

.stats-card .icon {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 1.8rem;
}

/* Legal note */
.legal-note {
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--color-text-body);
  text-align: center;
}

/* =======================
   RODAPÉ
   ======================= */
footer {
  text-align: center;
  margin-top: 32px;
  font-family: var(--font-family-body);
  font-size: 0.9rem;
  color: var(--color-text-body);
}

footer a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

footer a:hover {
  color: var(--color-accent);
}

/* =======================
   MEDIA QUERIES PARA MOBILE
   ======================= */
@media (max-width: 768px) {
  .wrapper {
    padding: 8px;
  }

  .container {
    padding: 12px;
    margin: 0;
  }

  h1 {
    font-size: 1.6rem;
    padding: 6px 10px;
  }

  .subtitle, p {
    font-size: 0.9rem;
    padding: 4px 8px;
  }

  #intro h2 {
    font-size: 1.5rem;
  }

  #timerDisplay {
    font-size: 1.4rem;
    padding: 10px;
  }

  .input-group {
    flex-direction: column;
  }

  input, select, button {
    padding: 6px;
    font-size: 0.85rem;
  }

  .radio-group {
    flex-direction: column;
    align-items: flex-start;
  }

  .radio-group span {
    margin-right: 0;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stats-card {
    padding: 12px;
  }

  .stats-card .title {
    font-size: 1.1rem;
  }

  .stats-card .value {
    font-size: 1rem;
  }

  .stats-card .icon {
    font-size: 1.6rem;
  }

  footer {
    margin-top: 20px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.4rem;
  }

  #timerDisplay {
    font-size: 1.2rem;
  }

  .stats-card {
    padding: 10px;
  }

  .stats-card .title {
    font-size: 1rem;
  }

  .stats-card .value {
    font-size: 0.9rem;
  }

  .stats-card .icon {
    font-size: 1.4rem;
  }
}