/* ProstaRelief Wellness Design System */
:root {
  /* Color Palette - Wellness */
  --primary: #2e7d32; /* deep green */
  --primary-dark: #256628;
  --primary-light: #4caf50;
  --accent: #66bb6a;

  --bg-cream: #f7f3eb; /* soft cream wellness background */
  --bg-cream-2: #fbf8f2;

  --neutral-white: #ffffff;
  --neutral-gray-50: #fafafa;
  --neutral-gray-100: #f5f5f5;
  --neutral-gray-200: #e5e5e5;
  --neutral-gray-300: #d4d4d4;
  --neutral-gray-400: #a3a3a3;
  --neutral-gray-500: #737373;
  --neutral-gray-600: #525252;
  --neutral-gray-700: #404040;
  --neutral-gray-800: #262626;
  --neutral-gray-900: #171717;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Radius & Shadows */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 18px rgba(0,0,0,0.08);
  --shadow-lg: 0 18px 30px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--neutral-gray-900);
  background: var(--neutral-white);
  margin: 0;
}

h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); color: var(--neutral-gray-900); margin: 0 0 var(--space-md); }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p { margin: 0 0 var(--space-md); color: var(--neutral-gray-700); }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }
.section { padding: var(--space-3xl) 0; }
.section.alt { background: var(--bg-cream); }
.section.alt-2 { background: var(--bg-cream-2); }

/* Header */
.header { background: var(--neutral-white); border-bottom: 1px solid var(--neutral-gray-200); position: sticky; top: 0; z-index: 50; box-shadow: var(--shadow-sm); }
.header-content { display: flex; align-items: center; justify-content: space-between; padding: var(--space-md) 0; }
.logo { height: 44px; width: auto; }
.nav { display: flex; gap: var(--space-lg); }
.nav-link { color: var(--neutral-gray-700); font-weight: 600; position: relative; padding: var(--space-xs) 0; }
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link.active::after { content:''; position:absolute; left:0; right:0; bottom:-6px; height:3px; background: var(--primary); border-radius: 2px; }

/* Hero */
.hero { background: linear-gradient(180deg, var(--bg-cream) 0%, var(--neutral-white) 100%); text-align: center; padding: var(--space-3xl) 0; }
.hero-title { font-size: 3rem; font-weight: 700; margin-bottom: var(--space-lg); }
.hero-subtitle { font-size: 1.25rem; color: var(--neutral-gray-600); max-width: 680px; margin: 0 auto var(--space-xl); }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; padding: var(--space-sm) var(--space-lg); border-radius: var(--radius-lg); border: 2px solid transparent; font-weight: 600; cursor: pointer; transition: .2s ease; }
.btn-primary { background: var(--primary); color: var(--neutral-white); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--neutral-white); color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary); color: var(--neutral-white); }
.btn-lg { padding: var(--space-md) var(--space-xl); font-size: 1.125rem; }

/* Cards */
.card { background: var(--neutral-white); border: 1px solid var(--neutral-gray-200); border-radius: 16px; padding: var(--space-lg); box-shadow: var(--shadow-sm); transition: .2s ease; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary); color: white; display:flex; align-items:center; justify-content:center; margin-bottom: var(--space-md); }
.card-title { color: var(--neutral-gray-900); margin-bottom: var(--space-sm); }
.card-text { color: var(--neutral-gray-700); }

/* Grid */
.grid { display: grid; gap: var(--space-lg); }
.grid-2 { grid-template-columns: repeat(2,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }

/* Contact */
.contact-info { display:flex; align-items:center; gap: var(--space-sm); margin-bottom: var(--space-sm); color: var(--neutral-gray-700); }
.contact-icon { width: 20px; height: 20px; color: var(--primary); }

/* Footer */
.footer { background: #0f3d2e; color: #dfe7e2; padding: var(--space-xl) 0 var(--space-lg); }
.footer-content { display:grid; grid-template-columns: 2fr 1fr; gap: var(--space-xl); margin-bottom: var(--space-lg); }
.footer h4 { color: #fff; }
.footer-links { list-style:none; padding:0; margin:0; }
.footer-links li { margin-bottom: var(--space-xs); }
.footer-links a { color: #dfe7e2; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: var(--space-md); text-align:center; font-size: .95rem; }

/* Forms */
.form-group { margin-bottom: var(--space-md); }
.form-label { display:block; margin-bottom: var(--space-xs); font-weight: 600; color: var(--neutral-gray-800); }
.form-input { width:100%; padding: var(--space-sm); border:1px solid var(--neutral-gray-300); border-radius: 10px; font-size:1rem; transition: .15s ease; background: var(--neutral-white); }
.form-input:focus { outline:none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(46,125,50,.15); }
.form-textarea { min-height: 120px; resize: vertical; }

/* Responsive */
@media (max-width: 992px){ .grid-3{grid-template-columns:1fr 1fr;} .grid-4{grid-template-columns:1fr 1fr;} }
@media (max-width: 768px){ .hero{padding: var(--space-2xl) 0;} .hero-title{font-size:2.2rem;} .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;} .footer-content{grid-template-columns:1fr;} }

/* Utilities */
.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(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

/* Animation */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up { animation: fadeInUp .6s ease-out; }