* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Montserrat', Arial, sans-serif;
  color: #fff;
  background: #262a34;
  line-height: 1.6;
}

/* Hero Section */
.hero {
  position: relative;
  background: url('assets/montagne.jpg') center center/cover no-repeat;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(30, 46, 70, 0.6);
  z-index: 1;
}

header, .cta {
  position: relative;
  z-index: 2;
  text-align: center;
}

header h1 {
  font-size: 3.5em;
  margin-bottom: 0.2em;
  letter-spacing: 2px;
  text-shadow: 2px 2px 8px #000;
}

header p {
  font-size: 1.5em;
  margin-bottom: 1.5em;
}

.button {
  display: inline-block;
  padding: 0.75em 2em;
  background: #49ad5f;
  color: #fff;
  border-radius: 25px;
  font-weight: bold;
  margin-top: 20px;
  text-decoration: none;
  box-shadow: 2px 2px 8px #171E29;
  transition: all 0.3s;
}
.button:hover {
  background: #347741;
  transform: translateY(-2px);
  box-shadow: 3px 3px 12px #171E29;
}

/* Main Content */
main {
  background: #242732;
  padding: 0;
}

section {
  padding: 4em 2em;
  text-align: center;
}

section h2 {
  font-size: 2.5em;
  margin-bottom: 0.5em;
  color: #d2ffe1;
}

.section-subtitle {
  font-size: 1.2em;
  color: #b2c7df;
  margin-bottom: 2em;
}

/* Features Section */
.features-section {
  background: #2a2f3e;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2em;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2em 0;
}

.feature-card {
  background: #232942;
  padding: 2em;
  border-radius: 14px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 3em;
  margin-bottom: 0.5em;
}

.feature-card h3 {
  color: #49ad5f;
  margin-bottom: 0.5em;
}

.feature-card p {
  color: #b2c7df;
  line-height: 1.6;
}

/* About Section */
.about-section {
  background: #262a34;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3em;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
  text-align: left;
}

.about-text h2 {
  text-align: left;
  margin-bottom: 1em;
}

.about-text p {
  color: #b2c7df;
  margin-bottom: 1em;
  line-height: 1.8;
}

.about-image img,
.about-image .placeholder-box {
  width: 100%;
  border-radius: 14px;
  box-shadow: 4px 4px 20px rgba(0,0,0,0.4);
}

.placeholder-box {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2em;
  text-align: center;
  padding: 2em;
}

.placeholder-icon {
  font-size: 3em;
  margin-bottom: 0.3em;
}

/* Plans Section */
.plans-section {
  background: #2a2f3e;
}

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2em;
  max-width: 1200px;
  margin: 2em auto 0;
  padding: 0 1em;
}

.plan {
  background: #232942;
  border-radius: 14px;
  padding: 2em;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
  transition: transform 0.3s;
  position: relative;
}

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

.plan.featured {
  border: 3px solid #49ad5f;
  background: #293646;
  transform: scale(1.05);
}

.plan.featured:hover {
  transform: scale(1.05) translateY(-10px);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: #49ad5f;
  color: #fff;
  padding: 0.5em 1.5em;
  border-radius: 20px;
  font-size: 0.8em;
  font-weight: bold;
  letter-spacing: 1px;
}

.plan h3 {
  margin-top: 0;
  color: #d2ffe1;
  font-size: 1.8em;
  margin-bottom: 1em;
}

.plan ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5em;
  text-align: left;
}

.plan li {
  margin-bottom: 0.7em;
  padding-left: 1.5em;
  position: relative;
  color: #b2c7df;
}

.plan li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #49ad5f;
  font-weight: bold;
}

.price {
  font-size: 2em;
  color: #49ad5f;
  font-weight: bold;
  margin: 1em 0;
}

.plan-button {
  display: inline-block;
  padding: 0.75em 2em;
  background: #49ad5f;
  color: #fff;
  border-radius: 25px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s;
  margin-top: 1em;
}

.plan-button:hover {
  background: #347741;
  transform: translateY(-2px);
}

/* Testimonials Section */
.testimonials-section {
  background: #262a34;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2em;
  max-width: 1200px;
  margin: 2em auto 0;
  padding: 0 1em;
}

.testimonial-card {
  background: #232942;
  padding: 2em;
  border-radius: 14px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.testimonial-image {
  margin-bottom: 1em;
}

.testimonial-image img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #49ad5f;
}

.avatar-placeholder {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  margin: 0 auto;
}

.avatar-blue {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.avatar-pink {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.avatar-cyan {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.testimonial-text {
  color: #b2c7df;
  font-style: italic;
  margin-bottom: 1em;
  line-height: 1.6;
}

.testimonial-author {
  color: #d2ffe1;
  font-weight: bold;
  margin-bottom: 0.2em;
}

.testimonial-role {
  color: #49ad5f;
  font-size: 0.9em;
}

/* Contact Section */
.contact-section {
  background: #2a2f3e;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3em;
  max-width: 1200px;
  margin: 2em auto 0;
  text-align: left;
}

.contact-info h3 {
  color: #d2ffe1;
  margin-bottom: 1.5em;
}

.contact-item {
  display: flex;
  gap: 1em;
  margin-bottom: 1.5em;
  align-items: flex-start;
}

.contact-icon {
  font-size: 1.5em;
  min-width: 40px;
}

.contact-item strong {
  display: block;
  color: #49ad5f;
  margin-bottom: 0.3em;
}

.contact-item p {
  color: #b2c7df;
  margin: 0;
}

.contact-form {
  background: #232942;
  padding: 2em;
  border-radius: 14px;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5em;
  color: #d2ffe1;
  font-weight: bold;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75em;
  border: 2px solid #3a4052;
  border-radius: 8px;
  background: #1c2330;
  color: #fff;
  font-family: inherit;
  font-size: 1em;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #49ad5f;
}

.submit-button {
  width: 100%;
  padding: 1em 2em;
  background: #49ad5f;
  color: #fff;
  border: none;
  border-radius: 25px;
  font-weight: bold;
  font-size: 1.1em;
  cursor: pointer;
  transition: all 0.3s;
}

.submit-button:hover {
  background: #347741;
  transform: translateY(-2px);
}

/* Footer */
footer {
  padding: 3em 2em 1em;
  background: #1c2330;
  color: #b2c7df;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2em;
  max-width: 1200px;
  margin: 0 auto 2em;
}

.footer-section h4 {
  color: #d2ffe1;
  margin-bottom: 1em;
}

.footer-section p {
  color: #b2c7df;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 0.5em;
}

.footer-section ul li a {
  color: #b2c7df;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section ul li a:hover {
  color: #49ad5f;
}

.footer-bottom {
  text-align: center;
  padding-top: 2em;
  border-top: 1px solid #3a4052;
}

/* Responsive Design */
@media (max-width: 768px) {
  header h1 {
    font-size: 2.5em;
  }

  header p {
    font-size: 1.2em;
  }

  section h2 {
    font-size: 2em;
  }

  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-text h2 {
    text-align: center;
  }

  .contact-container {
    grid-template-columns: 1fr;
  }

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

  .plan.featured {
    transform: scale(1);
  }

  .plan.featured:hover {
    transform: translateY(-10px);
  }
}

/* App Loading Indicator */
.app-loader {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loader-content {
  text-align: center;
  color: white;
}

.spinner {
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid #49ad5f;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* App Notifications */
.app-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 15px 25px;
  border-radius: 6px;
  color: white;
  font-weight: bold;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  opacity: 0;
  transform: translateX(400px);
  transition: all 0.3s ease;
}

.app-notification.show {
  opacity: 1;
  transform: translateX(0);
}

.app-notification.success {
  background: #49ad5f;
}

.app-notification.error {
  background: #dc3545;
}

.app-notification.info {
  background: #17a2b8;
}