/* TrueVital Supplements - Core Styles */
:root {
  /* Brand Colors */
  --primary-purple: #6b5b9a;
  --accent-amber: #d97706;
  --pure-white: #ffffff;
  --light-gray: #f3f4f6;
  --dark-gray: #333333;
  --border-gray: #e5e7eb;
  --muted-gray: #6b7280;

  /* Typography */
  --font-heading: "Playfair Display", serif;
  --font-body: "Source Sans Pro", sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border radius */
  --radius: 0.5rem;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--pure-white);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--dark-gray);
}

h1 {
  font-size: 2.5rem;
}
h2 {
  font-size: 2rem;
}
h3 {
  font-size: 1.5rem;
}
h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-xl) 0;
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Header */
.header {
  background: var(--pure-white);
  border-bottom: 1px solid var(--border-gray);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 15px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-purple);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  text-decoration: none;
  color: var(--dark-gray);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-purple);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary-purple);
  color: var(--pure-white);
}

.btn-primary:hover {
  background: #5a4a85;
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--accent-amber);
  color: var(--pure-white);
}

.btn-secondary:hover {
  background: #b45309;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-purple);
  border: 2px solid var(--primary-purple);
}

.btn-outline:hover {
  background: var(--primary-purple);
  color: var(--pure-white);
}

/* Cards */
.card {
  background: var(--pure-white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.card-header {
  margin-bottom: var(--spacing-md);
}

.card-title {
  color: var(--primary-purple);
  margin-bottom: var(--spacing-xs);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--light-gray) 0%, var(--pure-white) 100%);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero h1 {
  color: var(--primary-purple);
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.125rem;
  color: var(--muted-gray);
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--dark-gray);
}

.form-input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-gray);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 3px rgba(107, 91, 154, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-checkbox input {
  width: auto;
}

/* Footer */
.footer {
  background: var(--dark-gray);
  color: var(--pure-white);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--pure-white);
  margin-bottom: var(--spacing-md);
}

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--pure-white);
}

.footer-bottom {
  border-top: 1px solid #4b5563;
  padding-top: var(--spacing-md);
  text-align: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark-gray);
  color: var(--pure-white);
  padding: var(--spacing-md);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.cookie-banner.hidden {
  display: none;
}

/* Safety Notice */
.safety-notice {
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.safety-notice strong {
  color: #92400e;
}

/* Mobile Navigation */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark-gray);
  cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }

  .nav {
    padding: 0 15px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--pure-white);
    border-top: 1px solid var(--border-gray);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }

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

  .mobile-menu-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  h3 {
    font-size: 1.25rem;
  }

  .section {
    padding: var(--spacing-lg) 0;
  }

  .card {
    padding: var(--spacing-md);
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.mb-0 {
  margin-bottom: 0;
}
.mb-sm {
  margin-bottom: var(--spacing-sm);
}
.mb-md {
  margin-bottom: var(--spacing-md);
}
.mb-lg {
  margin-bottom: var(--spacing-lg);
}
.mt-lg {
  margin-top: var(--spacing-lg);
}
.hidden {
  display: none;
}