/**
 * HygieneChemSol - Base Styles & Typography Hierarchy
 */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&family=Sora:wght@600;700;800&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-ink-text);
  background-color: var(--color-white);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1 0 auto;
}

/* Typography Hierarchy (From PDF Section 2) */
h1, .h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.5rem); /* 32-40px */
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-deep-navy);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

h2, .h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 2.5vw, 1.625rem); /* 22-26px */
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-deep-navy);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
}

h3, .h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem; /* 20px */
  font-weight: 600;
  color: var(--color-deep-navy);
  margin-bottom: var(--space-2);
}

p {
  font-size: var(--text-base); /* 16px */
  color: var(--color-ink-text);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.eyebrow-accent {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-xs); /* 12px */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary-teal);
  margin-bottom: var(--space-2);
}

/* Links & Buttons */
a {
  color: var(--color-primary-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-teal-hover);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline-offset: 2px;
}

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

/* Structural Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.section-padding {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-padding-sm {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

.bg-tint {
  background-color: var(--color-tint-bg);
}

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

.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy p {
  color: var(--color-white);
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-teal { color: var(--color-primary-teal); }

/* Flex & Grid Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.grid { display: grid; }

/* Responsive layout utilities */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.grid-2.gap-10 {
  gap: var(--space-10);
}

.grid-2-wide {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-10);
  align-items: start;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.page-hero {
  padding: var(--space-8) 0;
}

.page-hero-navy {
  padding: var(--space-12) 0;
}

.breadcrumb-nav {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--color-text-muted);
}

.breadcrumb-nav a:hover {
  color: var(--color-primary-teal);
}

@media (max-width: 992px) {
  .grid-2-wide {
    grid-template-columns: 1fr;
  }

  .section-padding {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

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

  .section-padding {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .page-hero {
    padding: var(--space-6) 0;
  }

  .page-hero-navy {
    padding: var(--space-8) 0;
  }
}