/* Clinivora Design System - Core Variables & Reset */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --color-navy: #0B1F4D;
  --color-navy-light: #162B5F;
  --color-navy-dark: #06112C;
  --color-blue: #2563EB;
  --color-blue-hover: #1D4ED8;
  --color-blue-light: #EFF6FF;
  --color-teal: #14B8A6;
  --color-teal-dark: #0D9488;
  --color-teal-light: #CCFBF1;
  --color-bg-light: #F8FAFC;
  --color-white: #FFFFFF;
  
  /* Neutral Grays */
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50:  #F8FAFC;

  /* Accent Gradients */
  --grad-primary: linear-gradient(135deg, #0B1F4D 0%, #2563EB 100%);
  --grad-teal: linear-gradient(135deg, #2563EB 0%, #14B8A6 100%);
  --grad-glow: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.15), rgba(20, 184, 166, 0.05) 70%, transparent);
  --grad-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.6) 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(11, 31, 77, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(11, 31, 77, 0.06), 0 2px 4px -1px rgba(11, 31, 77, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(11, 31, 77, 0.08), 0 8px 10px -6px rgba(11, 31, 77, 0.04);
  --shadow-xl: 0 20px 35px -10px rgba(11, 31, 77, 0.12), 0 10px 15px -5px rgba(11, 31, 77, 0.06);
  --shadow-teal-glow: 0 10px 30px -5px rgba(20, 184, 166, 0.25);
  --shadow-blue-glow: 0 10px 30px -5px rgba(37, 99, 235, 0.3);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --max-width: 1240px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
}

/* Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-white);
  color: var(--slate-800);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Subtle Tech Grid */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    radial-gradient(var(--slate-200) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
  pointer-events: none;
  z-index: -1;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  color: var(--slate-600);
  font-size: 1.05rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

button {
  font-family: var(--font-heading);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

/* Utility Containers */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 6rem 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 4rem 0;
  }
}

/* Section Header Styling */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: var(--color-blue-light);
  color: var(--color-blue);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--slate-600);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

.text-center {
  text-align: center;
}

.gradient-text {
  background: var(--grad-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}