/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
  /* Colors */
  --bg-primary: #0b0f19;
  --bg-secondary: #131a2c;
  --bg-card: rgba(20, 28, 47, 0.65);
  --bg-card-hover: rgba(28, 38, 62, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(16, 185, 129, 0.4);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  /* Accent Colors */
  --primary: #10b981; /* Emerald */
  --primary-hover: #059669;
  --primary-glow: rgba(16, 185, 129, 0.25);
  
  --secondary: #06b6d4; /* Cyan/Teal */
  --secondary-hover: #0891b2;
  
  --danger: #ef4444; /* Rose */
  --danger-hover: #dc2626;
  --danger-glow: rgba(239, 68, 68, 0.2);
  
  --warning: #f59e0b; /* Amber */
  --info: #3b82f6; /* Blue */
  
  /* BMI Status Colors */
  --bmi-under: #38bdf8;   /* Sky Blue */
  --bmi-normal: #10b981;  /* Emerald */
  --bmi-over: #fbbf24;    /* Amber */
  --bmi-obese-1: #f97316; /* Orange */
  --bmi-obese-2: #ef4444; /* Red */
  --bmi-obese-3: #7f1d1d; /* Dark Red */

  /* Fonts */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Layout */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- RESET & BASES --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

/* --- HEADER & NAVEGAÇÃO --- */
header,
.header {
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  line-height: 0;
}

.logo img {
  height: 90px;
  width: auto;
  max-height: 100px;
  display: block;
  object-fit: cover;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: var(--transition-normal);
}

.logo img:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
}

.hamburger:hover {
  color: var(--primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  position: relative;
  padding: 0.3rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  transition: var(--transition-normal);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

/* --- HERO SECTION --- */
.hero {
  padding: 190px 2rem 110px;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -20%);
  width: 600px;
  height: 350px;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(6, 182, 212, 0.08) 40%, transparent 70%);
  z-index: -1;
  filter: blur(50px);
  pointer-events: none;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.15;
  background: linear-gradient(135deg, #ffffff 40%, var(--primary) 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-weight: 400;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.btn,
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0b0f19;
  border: none;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-xl);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: var(--transition-normal);
  cursor: pointer;
  text-align: center;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn:hover,
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--secondary-hover));
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--primary-glow);
}

/* --- SEÇÕES EM GERAL --- */
section,
.section {
  padding: 90px 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 3.5rem;
  color: var(--text-primary);
  position: relative;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  margin: 14px auto 0;
}

/* --- CARDS (SERVIÇOS & PRODUTOS) --- */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: var(--transition-fast);
}

.card:hover {
  transform: translateY(-6px);
  background-color: var(--bg-card-hover);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-xl), 0 0 25px var(--primary-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.card h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.6;
}

/* --- SOBRE --- */
.about-content,
.about-container {
  background-color: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 3.5rem 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
  position: relative;
}

.about-content p,
.about-container p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  font-weight: 400;
}

/* --- CONTATO --- */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-normal);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--border-focus);
  background-color: rgba(19, 26, 44, 0.95);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

/* --- RODAPÉ --- */
.footer {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 4.5rem 2rem 2.5rem;
  margin-top: 5rem;
  border-top: 1px solid var(--border-color);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col {
  flex: 1;
  min-width: 250px;
}

.footer-col h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  display: inline-block;
}

.footer-col a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-col p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* --- RESPONSIVIDADE --- */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
    border-bottom: 1px solid var(--border-color);
    display: none;
  }

  .nav-menu.active {
    display: flex;
  }

  .hero {
    padding: 150px 1.5rem 80px;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .footer-container {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .footer-col h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}