/* Endurela Landing Page Styles */

/* Base Styles and Variables */
:root {
  --primary-color: #4361ee;
  --secondary-color: #3a0ca3;
  --accent-color: #f72585;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --success-color: #4cc9f0;
  --gray-color: #6c757d;
  --light-gray: #e9ecef;
  
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Open Sans', sans-serif;
  
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-secondary);
  line-height: 1.6;
  color: var(--dark-color);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: 1.5rem;
}

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 1rem;
}

.section-title h2:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--accent-color);
}

.section-title p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--gray-color);
}

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

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

.btn-primary:hover {
  background-color: var(--secondary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--box-shadow);
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--box-shadow);
}

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

.btn-accent:hover {
  background-color: #d91a70;
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--box-shadow);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Header and Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.header.scrolled {
  padding: 0.5rem 0;
}

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

.logo {
  font-family: var(--font-primary);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-color);
}

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

.nav-menu {
  display: flex;
  list-style: none;
}

.nav-item {
  margin-left: 2rem;
}

.nav-link {
  color: var(--dark-color);
  font-weight: 600;
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color);
}

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

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

.nav-cta {
  margin-left: 2rem;
}

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--dark-color);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  padding: 10rem 0 5rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
  position: relative;
  overflow: hidden;
}

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

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  margin-bottom: 1.5rem;
  font-size: 3.5rem;
  line-height: 1.2;
  color: var(--dark-color);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--gray-color);
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-image {
  flex: 1;
  text-align: right;
  position: relative;
}

.hero-image img {
  max-width: 100%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Problem Statement Section */
.problem {
  background-color: white;
}

.problem-content {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.problem-text {
  flex: 1;
}

.problem-image {
  flex: 1;
}

/* Features Section */
.features {
  background-color: var(--light-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Killer Features Section */
.killer-features {
  background-color: white;
}

.killer-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.killer-feature-card {
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  border-top: 4px solid var(--primary-color);
  height: 100%;
}

.killer-feature-card:hover {
  transform: translateY(-10px);
}

.killer-feature-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.killer-feature-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Benefits Section */
.benefits {
  background-color: var(--light-color);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.benefit-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  height: 100%;
}

.benefit-icon {
  font-size: 2.5rem;
  color: var(--success-color);
  margin-bottom: 1.5rem;
}

.benefit-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.benefit-list {
  list-style: none;
}

.benefit-list li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.benefit-list li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: bold;
}

/* How It Works Section */
.how-it-works {
  background-color: white;
}

.steps {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  position: relative;
}

.steps:after {
  content: '';
  position: absolute;
  top: 4rem;
  left: 10%;
  width: 80%;
  height: 2px;
  background-color: var(--light-gray);
  z-index: 1;
}

.step {
  text-align: center;
  position: relative;
  z-index: 2;
  flex: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: bold;
  margin: 0 auto 1.5rem;
}

.step-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Testimonials Section */
.testimonials {
  background-color: var(--light-color);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

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

.testimonial-text {
  font-style: italic;
  margin-bottom: 1.5rem;
}

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

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 1rem;
  object-fit: cover;
}

.testimonial-info h4 {
  margin-bottom: 0.25rem;
}

.testimonial-info p {
  color: var(--gray-color);
  margin-bottom: 0;
}

.testimonial-quote {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 3rem;
  color: var(--light-gray);
  line-height: 1;
}

/* Early Access Section */
.early-access {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  text-align: center;
}

.early-access .section-title h2:after {
  background-color: white;
}

.early-access-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark-color);
}

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

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.3);
}

.form-submit {
  width: 100%;
  margin-top: 1rem;
}

.form-text {
  display: block;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--gray-color);
  text-align: center;
}

/* FAQ Section */
.faq {
  background-color: white;
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

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

.accordion-header {
  background-color: var(--light-color);
  padding: 1rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.accordion-header:hover {
  background-color: #e9ecef;
}

.accordion-header h3 {
  margin-bottom: 0;
  font-size: 1.2rem;
}

.accordion-icon {
  font-size: 1.5rem;
  transition: var(--transition);
}

.accordion-content {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-header {
  background-color: var(--primary-color);
  color: white;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-item.active .accordion-content {
  max-height: 1000px;
  padding: 1.5rem;
}

/* Footer */
.footer {
  background-color: var(--dark-color);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-primary);
  font-size: 1.8rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
}

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

.footer-text {
  color: #adb5bd;
}

.footer-heading {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.footer-heading:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent-color);
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #adb5bd;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

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

.social-link:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: #adb5bd;
  margin-bottom: 0;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
  h1 {
    font-size: 2.8rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
  
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-text {
    margin-bottom: 3rem;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .problem-content {
    flex-direction: column-reverse;
    gap: 2rem;
  }
  
  .steps {
    flex-direction: column;
    gap: 3rem;
  }
  
  .steps:after {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 5rem;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-item {
    margin: 1.5rem 0;
  }
  
  .hamburger {
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .hero {
    padding: 8rem 0 3rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

@media screen and (max-width: 576px) {
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}