/* ========================================
   FARAH CORP - GLOBAL STYLES
   Performance Marketing Agency
======================================== */

/* === CSS RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Brand Colors */
  --primary: #0066FF;
  --primary-dark: #0052CC;
  --secondary: #00C896;
  --dark: #1A1A2E;
  --dark-light: #2D2D44;
  --gray: #6B7280;
  --gray-light: #F3F4F6;
  --white: #FFFFFF;

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);

  /* Transitions */
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--white);
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--gray);
}

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

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

/* === UTILITY CLASSES === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

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

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

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

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

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: #00A377;
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--white);
}

/* === HEADER & NAVIGATION === */
header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--dark);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--dark);
  transition: var(--transition);
}

/* === HERO SECTION === */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  color: var(--white);
  padding: var(--spacing-xl) 0;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-text .highlight {
  color: var(--secondary);
}

.hero-text p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--gray-light);
}

.hero-form {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}

.hero-form h3 {
  color: var(--dark);
  margin-bottom: 1.5rem;
}

/* === FORMS === */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid #E5E7EB;
  border-radius: 6px;
  font-size: 1rem;
  transition: var(--transition);
  font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  color: #EF4444;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: #EF4444;
}

.form-group.error .form-error {
  display: block;
}

/* === KPI METRICS === */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.kpi-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.kpi-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.kpi-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 0.5rem;
}

.kpi-label {
  font-size: 1rem;
  color: var(--gray);
  font-weight: 500;
}

/* === SERVICES GRID === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
}

.service-card {
  background-color: var(--white);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 2px solid transparent;
}

.service-card:hover {
  border-color: var(--primary);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  color: var(--dark);
  margin-bottom: 1rem;
}

.service-card ul {
  list-style: none;
  margin-top: 1rem;
}

.service-card ul li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--gray);
}

.service-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: 700;
}

/* === CASE STUDIES === */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.case-card {
  background-color: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.case-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 2rem;
}

.case-header h3 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.case-header .industry {
  color: var(--gray-light);
  font-size: 0.9rem;
}

.case-body {
  padding: 2rem;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric {
  text-align: center;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--secondary);
  display: block;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--gray);
}

/* === TESTIMONIALS === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.testimonial-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary);
  opacity: 0.2;
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  font-family: Georgia, serif;
}

.testimonial-text {
  margin-bottom: 1.5rem;
  font-style: italic;
  color: var(--gray);
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
  font-size: 1.25rem;
}

.author-info h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--dark);
}

.author-info p {
  font-size: 0.875rem;
  color: var(--gray);
  margin: 0;
}

/* === TRUST SECTION === */
.trust-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  opacity: 0.6;
  margin-top: var(--spacing-md);
}

.trust-logos .logo-placeholder {
  padding: 1rem 2rem;
  background-color: var(--gray-light);
  border-radius: 8px;
  font-weight: 600;
  color: var(--gray);
}

/* === BLOG === */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.blog-card {
  background-color: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-image {
  width: 100%;
  height: 200px;
  background-color: var(--gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
}

.blog-content {
  padding: 1.5rem;
}

.blog-meta {
  font-size: 0.875rem;
  color: var(--gray);
  margin-bottom: 0.75rem;
}

.blog-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.blog-content p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* === TEAM === */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

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

.member-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background-color: var(--gray-light);
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary);
  font-weight: 700;
}

.member-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--dark);
}

.member-role {
  color: var(--gray);
  font-size: 0.95rem;
}

/* === FOOTER === */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
  color: var(--gray-light);
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-section a:hover {
  color: var(--secondary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--dark-light);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--gray);
  font-size: 0.9rem;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

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

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

  /* Mobile Navigation */
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    transition: left 0.3s ease;
  }

  .nav-links.active {
    left: 0;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: var(--spacing-md) 0;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-text p {
    font-size: 1rem;
  }

  /* Grids */
  .services-grid,
  .case-studies-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .kpis {
    grid-template-columns: 1fr;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
    display: block;
  }

  .hero-text h1 {
    font-size: 1.75rem;
  }

  .service-card,
  .case-card,
  .testimonial-card {
    padding: 1.5rem;
  }
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* === LOADING STATES === */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.btn.loading::after {
  content: '...';
  animation: dots 1.5s infinite;
}

@keyframes dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}