/**
 * Cogrounding.com - Main Stylesheet
 * Premium consultancy design with clean, boardroom aesthetic
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Brand Colors */
  --color-brand: #007070;
  --color-secondary: #1A7F8B;
  --color-tertiary: #21A3B1;
  --color-accent: #E77719;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-light-gray: #F8F9FA;
  --color-medium-gray: #E9ECEF;
  --color-dark-gray: #6C757D;
  --color-text: #2D3436;
  --color-text-light: #636E72;
  
  /* Typography */
  --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Font Sizes */
  --font-size-h1: 3.5rem;      /* 56px */
  --font-size-h2: 2.5rem;      /* 40px */
  --font-size-h3: 1.5rem;      /* 24px */
  --font-size-body: 1.125rem;  /* 18px */
  --font-size-small: 0.875rem; /* 14px */
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --container-padding: 2rem;
  --section-spacing: 6rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.12);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-Index Scale */
  --z-index-dropdown: 100;
  --z-index-sticky: 200;
  --z-index-modal: 300;
  --z-index-toast: 400;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-semibold);
  color: var(--color-brand);
}

h2 {
  font-size: var(--font-size-h2);
  color: var(--color-brand);
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-accent);
}

strong {
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-spacing) 0;
}

.section-sm {
  padding: calc(var(--section-spacing) * 0.66) 0;
}

.section-lg {
  padding: calc(var(--section-spacing) * 1.5) 0;
}

/* ============================================
   Eyebrow Navigation
   ============================================ */
.eyebrow {
  background-color: var(--color-light-gray);
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-small);
  border-bottom: 1px solid var(--color-medium-gray);
}

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

.eyebrow-text {
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

.eyebrow-link {
  color: var(--color-brand);
  font-weight: var(--font-weight-medium);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.eyebrow-link:hover {
  gap: 0.5rem;
}

.eyebrow-link .arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.eyebrow-link:hover .arrow {
  transform: translateX(3px);
}

/* ============================================
   Main Navigation
   ============================================ */
.site-header {
  background-color: var(--color-white);
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-index-sticky);
  min-height: 100px;
}

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(0.5rem, 1vw, 1.25rem);
  min-height: 96px;
}

.logo {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-brand);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  line-height: 1.1;
  flex-shrink: 0;
}

.logo-image {
  height: 200px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.logo-image:hover {
  opacity: 0.8;
}

.logo:hover {
  color: var(--color-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: clamp(0.5rem, 1vw, 1.25rem);
  align-items: stretch;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

.nav-menu li {
  flex: 0 0 clamp(150px, 14vw, 190px);
  max-width: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-menu a {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: 1rem;
  line-height: 1.3;
  padding: var(--spacing-xs) 0.75rem;
  min-height: 64px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  white-space: normal;
  text-wrap: balance;
  hyphens: auto;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-brand);
  background-color: rgba(0, 112, 112, 0.05);
}

.nav-cta {
  flex-shrink: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-logo-image {
  height: 70px;
  width: auto;
  display: block;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
}

.footer-tagline {
  font-size: var(--font-size-small);
  color: var(--color-tertiary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
}

.footer-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-small);
}

.footer-heading {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li,
.footer-contact li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a,
.footer-contact a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-small);
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-tertiary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-small);
  color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  margin: 0;
  padding: 0;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-legal a:hover {
  color: var(--color-tertiary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --font-size-h1: 2.75rem;
    --font-size-h2: 2rem;
    --section-spacing: 4rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    min-height: auto;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    gap: 0;
  }

  .nav-menu li {
    flex: 1 1 auto;
    max-width: none;
    width: 100%;
    justify-content: flex-start;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-menu a {
    width: 100%;
    padding: var(--spacing-md);
    min-height: 52px;
    justify-content: flex-start;
    text-align: left;
    line-height: 1.4;
    text-wrap: pretty;
  }
  
  .nav-cta {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --container-padding: 1.5rem;
    --section-spacing: 3rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-bottom-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .footer-legal {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}