/* ==========================================================================
   Redbridge Directory — Design Tokens & Core Styles
   Brand Palette:
   - Primary Navy:   #032C4D
   - Primary Orange: #FF8717
   - Base White:     #FFFFFF
   Typography:
   - Body & Controls: Inter (Google Font)
   - Headings & CTAs: Poppins (Google Font)
   ========================================================================== */

:root {
  /* Brand Colours */
  --color-navy: #032C4D;
  --color-navy-dark: #021F37;
  --color-navy-light: #0A3D66;
  --color-navy-tint: #F0F4F8;
  --color-navy-border: #D1DDE8;

  --color-orange: #FF8717;
  --color-orange-hover: #E67205;
  --color-orange-active: #C95E00;
  --color-orange-light: #FFF7ED;
  --color-orange-tint: #FFF4E8;
  --color-orange-border: rgba(255, 135, 23, 0.35);

  --color-white: #FFFFFF;
  --color-slate-50: #F8FAFC;
  --color-slate-100: #F1F5F9;
  --color-slate-200: #E2E8F0;
  --color-slate-300: #CBD5E1;
  --color-slate-400: #94A3B8;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1E293B;

  /* Semantic Roles */
  --bg-page: #FFFFFF;
  --bg-surface: #FFFFFF;
  --bg-subtle-blue: #F4F7FA;
  --bg-subtle-orange: #FFF8F2;
  --bg-footer: #032C4D;

  --text-main: #1E293B;
  --text-muted: #475569;
  --text-light: #64748B;
  --text-navy: #032C4D;
  --text-white: #FFFFFF;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --container-max: 1200px;
  --container-narrow: 840px;
  --container-pad: 1.5rem;
  --section-pad-y: 5.5rem;
  --section-pad-y-sm: 3.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(3, 44, 77, 0.05);
  --shadow-md: 0 4px 14px rgba(3, 44, 77, 0.08);
  --shadow-lg: 0 10px 28px rgba(3, 44, 77, 0.10);
  --shadow-cta: 0 6px 20px rgba(255, 135, 23, 0.32);

  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --border-subtle: 1px solid var(--color-slate-200);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 240ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-page);
}

main {
  flex: 1 0 auto;
}

/* Global Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* Typography Hierarchy */
h1, h2, h3, h4, .font-heading {
  font-family: var(--font-heading);
  color: var(--text-navy);
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.25rem);
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.45rem);
  letter-spacing: -0.01em;
}

p {
  color: var(--text-muted);
  font-size: 1.0625rem;
  line-height: 1.68;
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--color-slate-700);
}

/* Section Header Utility */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin-bottom: 0.85rem;
}

.section-header p {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Eyebrows */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 0.75rem;
}

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

.eyebrow-badge {
  background-color: var(--color-orange-light);
  color: var(--color-navy);
  border: 1px solid var(--color-orange-border);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Buttons and Links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-normal);
  text-align: center;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-orange);
  color: var(--color-white);
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background-color: var(--color-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 135, 23, 0.45);
}

.btn-primary:active {
  background-color: var(--color-orange-active);
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 1.15rem;
  height: 1.15rem;
  stroke-width: 2.5;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* Responsive Utilities */
@media (max-width: 768px) {
  :root {
    --section-pad-y: 3.75rem;
    --section-pad-y-sm: 2.5rem;
  }

  .btn {
    width: 100%;
    padding: 1rem 1.5rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }
}