/* 
 * styles.css
 * Main stylesheet for AI Marketing & Automation Agency website
 */

/* ===== VARIABLES ===== */
:root {
  /* Color Scheme */
  --primary-dark: #1a2e29;
  --primary-light: #f8f9fa;
  --accent: #8eff00;
  --text-dark: #212529;
  --text-light: #ffffff;
  --gray-light: #e9ecef;
  --gray-medium: #6c757d;
  
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Border Radius */
  --border-radius-sm: 5px;
  --border-radius-md: 10px;
  --border-radius-lg: 20px;
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--primary-light);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

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

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

ul, ol {
  list-style-position: inside;
}

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

/* ===== UTILITY CLASSES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

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

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

.bg-dark {
  background-color: var(--primary-dark);
  color: var(--text-light);
}

.bg-light {
  background-color: var(--primary-light);
  color: var(--text-dark);
}

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

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

.section-title {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 100px;
  height: 3px;
  background-color: var(--accent);
  margin: var(--spacing-sm) auto;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  font-family: var(--font-primary);
}

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

.btn-primary:hover {
  background-color: #7de600;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-light);
  border: 2px solid var(--text-light);
}

.btn-secondary:hover {
  background-color: var(--text-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.flex {
  display: flex;
}

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

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

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

.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

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

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

/* ===== HEADER & NAVIGATION ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--primary-dark);
  padding: var(--spacing-sm) 0;
  transition: var(--transition-medium);
}

.header.scrolled {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  padding: 0.5rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-light);
  display: flex;
  align-items: center;
}

.logo span {
  color: var(--accent);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-link {
  color: var(--text-light);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: var(--transition-fast);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
  background-color: var(--primary-dark);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Account for fixed header */
}

.hero-content {
  max-width: 600px;
  z-index: 1;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.hero-btns {
  display: flex;
  gap: var(--spacing-sm);
}

.hero-image {
  position: relative;
  z-index: 1;
}

/* ===== SERVICES SECTION ===== */
.services-card {
  background-color: var(--primary-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-medium);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.services-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
  width: 70px;
  height: 70px;
  background-color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 2rem;
  color: var(--primary-dark);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.service-description {
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.service-link {
  color: var(--primary-dark);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.service-link i {
  margin-left: 5px;
  transition: var(--transition-fast);
}

.service-link:hover i {
  transform: translateX(5px);
}

/* ===== STATS SECTION ===== */
.stats {
  background-color: var(--primary-dark);
  color: var(--text-light);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  border: 2px solid var(--accent);
  border-radius: var(--border-radius-md);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--spacing-xs);
  display: block;
}

.stat-description {
  font-size: 1.1rem;
}

/* ===== CASE STUDIES SECTION ===== */
.case-study-card {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-medium);
  background-color: var(--primary-light);
}

.case-study-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.case-study-image {
  height: 250px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.case-study-tag {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--accent);
  color: var(--primary-dark);
  padding: 5px 10px;
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

.case-study-content {
  padding: var(--spacing-md);
}

.case-study-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.case-study-description {
  margin-bottom: var(--spacing-md);
}

.case-study-link {
  color: var(--primary-dark);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.case-study-link i {
  margin-left: 5px;
  transition: var(--transition-fast);
}

.case-study-link:hover i {
  transform: translateX(5px);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background-color: var(--gray-light);
}

.testimonial-card {
  background-color: var(--primary-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  margin: 0 var(--spacing-sm);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.testimonial-text::before,
.testimonial-text::after {
  content: '"';
  font-size: 2rem;
  color: var(--accent);
  font-family: serif;
}

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

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  background-color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-weight: 700;
}

.testimonial-info h4 {
  margin-bottom: 0;
  font-size: 1.1rem;
}

.testimonial-info p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--gray-medium);
}

/* ===== CTA SECTION ===== */
.cta {
  background-color: var(--primary-dark);
  color: var(--text-light);
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--primary-dark);
  color: var(--text-light);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-logo {
  margin-bottom: var(--spacing-md);
  display: inline-block;
}

.footer-description {
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

.footer-title {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.footer-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 2px;
  background-color: var(--accent);
  margin-top: var(--spacing-xs);
}

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

.footer-link {
  margin-bottom: var(--spacing-xs);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  color: var(--accent);
  transform: translateX(5px);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-link:hover {
  background-color: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-5px);
}

.copyright {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-xl);
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ===== SERVICES PAGE ===== */
.page-header {
  background-color: var(--primary-dark);
  padding: 150px 0 var(--spacing-xl);
  text-align: center;
}

.page-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-md);
  opacity: 0.9;
}

.service-tabs {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-light);
}

.service-tab {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: var(--transition-fast);
  border-bottom: 3px solid transparent;
}

.service-tab.active {
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.service-tab:hover {
  background-color: var(--gray-light);
}

.service-content {
  margin-bottom: var(--spacing-xl);
}

.service-features {
  margin: var(--spacing-lg) 0;
}

.feature-item {
  display: flex;
  margin-bottom: var(--spacing-md);
}

.feature-icon {
  width: 30px;
  height: 30px;
  background-color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--spacing-sm);
  flex-shrink: 0;
}

.process-steps {
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-left: 80px;
  margin-bottom: var(--spacing-lg);
  counter-increment: step;
}

.process-step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 60px;
  height: 60px;
  background-color: var(--primary-dark);
  color: var(--text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.process-step::after {
  content: '';
  position: absolute;
  left: 30px;
  top: 60px;
  width: 2px;
  height: calc(100% - 30px);
  background-color: var(--accent);
}

.process-step:last-child::after {
  display: none;
}

.faq-item {
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--gray-light);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.faq-question {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--gray-light);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  transition: var(--transition-fast);
}

.faq-question.active::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: var(--transition-medium);
}

.faq-answer.active {
  padding: var(--spacing-md);
  max-height: 500px;
}

/* ===== CASE STUDIES PAGE ===== */
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.filter-button {
  padding: 0.5rem 1rem;
  background-color: var(--primary-light);
  border: 1px solid var(--gray-light);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-button.active {
  background-color: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.page-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--gray-light);
  transition: var(--transition-fast);
}

.page-link.active {
  background-color: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.page-link:hover:not(.active) {
  background-color: var(--gray-light);
}

/* ===== CONTACT PAGE ===== */
.contact-info {
  margin-bottom: var(--spacing-lg);
}

.contact-card {
  background-color: var(--primary-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  height: 100%;
}

.contact-icon {
  width: 60px;
  height: 60px;
  background-color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
  font-size: 1.5rem;
  color: var(--primary-dark);
}

.contact-title {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.contact-form {
  background-color: var(--primary-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-light);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-primary);
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(142, 255, 0, 0.2);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.map-container {
  height: 400px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  margin-top: var(--spacing-xl);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }
  
  html {
    font-size: 15px;
  }
  
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .container {
    max-width: 540px;
  }
  
  html {
    font-size: 14px;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .nav-list {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--primary-dark);
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md) 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
    z-index: 999;
  }
  
  .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero {
    text-align: center;
  }
  
  .hero-content {
    margin: 0 auto;
  }
  
  .hero-btns {
    justify-content: center;
  }
  
  .hero-image {
    margin-top: var(--spacing-lg);
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .service-tabs {
    flex-direction: column;
  }
  
  .service-tab {
    text-align: center;
  }
}

@media (max-width: 576px) {
  .container {
    width: 100%;
    padding: 0 var(--spacing-md);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .btn {
    padding: 0.6rem 1.2rem;
  }
  
  .hero-btns {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .process-step {
    padding-left: 50px;
  }
  
  .process-step::before {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .process-step::after {
    left: 20px;
    top: 40px;
  }
  
  .filter-buttons {
    justify-content: center;
  }
}