/* ============================================
   Circle Care Assurance — Global Styles
   Premium Health Advisory Website
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand Colors */
  --navy: #0a2e5c;
  --navy-light: #133d6e;
  --teal: #00838f;
  --aqua: #26c6da;
  --light-aqua: #6dc8d8;
  --gold: #c9a84c;
  --gold-light: #d4b86a;

  /* Neutrals */
  --off-white: #f8f6f2;
  --warm-gray: #e8e4de;
  --medium-gray: #9a9590;
  --dark-gray: #3d3a37;
  --charcoal: #1a1a1a;
  --white: #ffffff;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent: 'Inter', sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.25rem;
  --text-6xl: 4rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(10, 46, 92, 0.06);
  --shadow-md: 0 4px 16px rgba(10, 46, 92, 0.08);
  --shadow-lg: 0 8px 32px rgba(10, 46, 92, 0.12);
  --shadow-xl: 0 16px 48px rgba(10, 46, 92, 0.16);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--navy);
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-size: var(--text-5xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-4xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-sm);
  color: var(--dark-gray);
}

.text-gold {
  color: var(--gold);
}

.text-teal {
  color: var(--teal);
}

.text-navy {
  color: var(--navy);
}

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

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--sm {
  padding: var(--space-3xl) 0;
}

.section--navy {
  background-color: var(--navy);
  color: var(--white);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--white);
}

.section--navy p {
  color: rgba(255, 255, 255, 0.8);
}

.section--offwhite {
  background-color: var(--off-white);
}

.section--warm-gray {
  background-color: var(--warm-gray);
}

/* 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);
}

/* Flexbox */
.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
  align-items: center;
}

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

.flex--gap-sm {
  gap: var(--space-sm);
}

.flex--gap-md {
  gap: var(--space-md);
}

.flex--gap-lg {
  gap: var(--space-lg);
}

/* --- Section Headers --- */
.section-label {
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: var(--space-sm);
}

.section--navy .section-label {
  color: var(--gold);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--medium-gray);
  max-width: 600px;
  line-height: 1.7;
}

.text-center .section-subtitle {
  margin: 0 auto;
}

/* --- Divider --- */
.divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  margin: var(--space-md) 0;
}

.text-center .divider {
  margin-left: auto;
  margin-right: auto;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0s; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 0.2s; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 0.3s; }
.stagger-children .fade-in:nth-child(5) { transition-delay: 0.4s; }
.stagger-children .fade-in:nth-child(6) { transition-delay: 0.5s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }

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

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }

  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 { font-size: var(--text-2xl); }
  h2 { font-size: var(--text-xl); }
}