/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Carbon Design System colors */
  --cds-text-primary: #161616;
  --cds-text-secondary: #525252;
  --cds-background: #ffffff;
  --cds-background-hover: #e5e5e5;
  --cds-layer-01: #f4f4f4;
  --cds-layer-02: #ffffff;
  --cds-layer-selected-01: #e0e0e0;
  --cds-layer-selected-02: #f4f4f4;
  --cds-layer-accent-01: #e0e0e0;
  --cds-border-subtle-00: #e0e0e0;
  --cds-border-subtle-selected-01: #c6c6c6;
  --cds-field-01: #f4f4f4;
  --cds-field-02: #ffffff;
  --cds-inverse-01: #ffffff;
  --cds-inverse-02: #393939;
  --cds-link-01: #0f62fe;
  --cds-link-02: #0043ce;
  --cds-button-primary: #0f62fe;
  --cds-button-secondary: #393939;
  --cds-button-tertiary: #0f62fe;
  --cds-background-brand: #0f62fe;

  /* Carbon spacing */
  --spacing-01: 0.125rem;
  --spacing-02: 0.25rem;
  --spacing-03: 0.5rem;
  --spacing-04: 0.75rem;
  --spacing-05: 1rem;
  --spacing-06: 1.5rem;
  --spacing-07: 2rem;
  --spacing-08: 2.5rem;
  --spacing-09: 3rem;
  --spacing-10: 4rem;
  --spacing-11: 5rem;
  --spacing-12: 6rem;
  --spacing-13: 10rem;
}

body {
  font-family: "IBM Plex Sans", sans-serif;
  line-height: 1.5;
  color: var(--cds-text-primary);
  background-color: var(--cds-background);
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.navbar {
  background-color: var(--cds-layer-02);
  padding: var(--spacing-05) 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--cds-border-subtle-00);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-03);
  color: var(--cds-text-primary);
}

.logo img {
  width: 30%; /* Reduced by 70% */
  height: auto; /* Maintain aspect ratio */
}

.logo span {
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.16px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-06);
  align-items: center;
}

.nav-links a {
  color: var(--cds-text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.16px;
  transition: color 0.15s;
  padding: var(--spacing-03);
}

.nav-links a:hover {
  color: var(--cds-link-01);
}

.cta-button {
  background: var(--cds-button-primary);
  color: white !important;
  padding: var(--spacing-03) var(--spacing-05);
  border-radius: 0;
  transition: background-color 0.15s;
  font-size: 0.875rem;
  letter-spacing: 0.16px;
}

.cta-button:hover {
  background: var(--cds-link-02);
}

/* Hero section */
#hero {
  margin-top: 0;
  padding: 0;
  text-align: left;
  background: var(--cds-layer-01);
  color: var(--cds-text-primary);
}

#hero h1 {
  font-size: 2.625rem;
  line-height: 1.199;
  font-weight: 400;
  margin-bottom: var(--spacing-06);
  letter-spacing: 0;
}

.hero-cta {
  margin-top: var(--spacing-07);
  display: flex;
  gap: var(--spacing-05);
}

.primary-button,
.secondary-button {
  padding: var(--spacing-04) var(--spacing-06);
  text-decoration: none;
  font-size: 0.875rem;
  letter-spacing: 0.16px;
  transition: background-color 0.15s;
}

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

.secondary-button {
  background: transparent;
  color: var(--cds-button-primary);
  border: 1px solid var(--cds-button-primary);
}

.primary-button:hover {
  background: var(--cds-link-02);
}

.secondary-button:hover {
  background: var(--cds-field-01);
}

/* Hero Slider */
.hero-slider {
  position: relative;
  overflow: hidden;
  height: 100vh;
  max-height: 800px;
  background: var(--cds-layer-01);
  margin-top: -3.5rem;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out, transform 6s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-07);
  background-size: cover;
  background-position: 50% 20%;
  background-repeat: no-repeat;
  background-attachment: fixed;
  transform: scale(1.1);
}

.slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.5) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
  z-index: 1;
}

.slide.active {
  opacity: 1;
  transform: scale(1);
}

.slide-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
  position: relative;
  z-index: 2;
  padding: var(--spacing-07);
  border-radius: 0;
  background: transparent;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-content h1 {
  font-size: 3.375rem;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.25px;
  color: var(--cds-inverse-01);
  -webkit-text-fill-color: var(--cds-inverse-01); /* Force white text */
  background: none; /* Remove any gradient */
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease-out 0.3s;
}

.slide.active .slide-content h1 {
  opacity: 1;
  transform: translateY(0);
}

.slide-content p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-07);
  color: var(--cds-inverse-01);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease-out 0.5s;
}

.slide.active .slide-content p {
  opacity: 1;
  transform: translateY(0);
}

.slide .hero-cta {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease-out 0.7s;
}

.slide.active .hero-cta {
  opacity: 1;
  transform: translateY(0);
}

.slider-nav {
  position: absolute;
  bottom: var(--spacing-07);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-03);
  z-index: 3;
}

.slider-dot {
  width: var(--spacing-04);
  height: var(--spacing-04);
  border: 2px solid var(--cds-inverse-01);
  background: transparent;
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.slider-dot.active {
  background: var(--cds-inverse-01);
  transform: scale(1.2);
}

.slide .bx--btn {
  transition: all 0.2s ease;
}

.slide .bx--btn--secondary {
  background: transparent;
  color: var(--cds-inverse-01);
  border: 2px solid var(--cds-inverse-01);
}

.slide .bx--btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.slide .bx--btn--primary:hover {
  transform: translateY(-2px);
}

/* Features section */
#features {
  padding: var(--spacing-09) 5%;
  background: var(--cds-background);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-07);
  margin-top: var(--spacing-08);
}

.feature-card {
  background: var(--cds-layer-02);
  padding: var(--spacing-07);
  border: 1px solid var(--cds-border-subtle-00);
  transition: transform 0.15s;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-06);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  margin-bottom: 0;
  padding: var(--spacing-03);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-content {
  flex: 1;
}

.feature-card h3 {
  margin-top: -4px;
}

.feature-content h3 {
  margin-bottom: var(--spacing-04);
}

.feature-card:hover carbon-pictogram {
  transform: scale(1.1);
}

.feature-card ul {
  list-style: none;
}

.feature-card ul li {
  margin-bottom: var(--spacing-03);
  padding-left: var(--spacing-06);
  position: relative;
  color: var(--cds-text-secondary);
}

.feature-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 1px;
  background: var(--cds-button-primary);
}

.features-grid .feature-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out,
    box-shadow 0.3s ease;
}

.features-grid .feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Benefits section */
#benefits {
  padding: var(--spacing-09) 5%;
  background: linear-gradient(
    135deg,
    var(--cds-layer-01) 0%,
    var(--cds-background) 50%,
    var(--cds-layer-accent-01) 100%
  );
  position: relative;
  overflow: hidden;
}

#benefits::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    45deg,
    rgba(15, 98, 254, 0.05) 0%,
    rgba(15, 98, 254, 0.02) 100%
  );
  pointer-events: none;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-07);
  margin-top: var(--spacing-08);
}

.benefit-card {
  padding: var(--spacing-07);
  background: var(--cds-layer-02);
  border: 1px solid var(--cds-border-subtle-00);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-06);
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
  margin-bottom: 0;
  padding: var(--spacing-03);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.benefit-card:hover .benefit-icon {
  transform: scale(1.1) rotate(5deg);
}

.benefit-content {
  flex: 1;
}

.benefit-card h3 {
  margin-top: -4px;
}

.benefit-content h3 {
  margin-bottom: var(--spacing-04);
}

.benefit-icon .bx--icon {
  width: 32px;
  height: 32px;
}

.benefit-card:hover carbon-pictogram {
  transform: translateY(-4px);
}

.benefits-grid .benefit-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out,
    box-shadow 0.3s ease;
}

.benefits-grid .benefit-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Testimonials */
#testimonials {
  padding: var(--spacing-09) 5%;
  background: var(--cds-layer-02);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-07);
  margin-top: var(--spacing-08);
}

.testimonial-card {
  background: var(--cds-layer-01);
  padding: var(--spacing-07);
  border: 1px solid var(--cds-border-subtle-00);
}

.testimonial-card cite {
  display: block;
  margin-top: var(--spacing-05);
  color: var(--cds-text-secondary);
  font-style: normal;
}

/* Pricing section */
#pricing {
  padding: var(--spacing-09) 5%;
  background: var(--cds-layer-01);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-07);
  margin-top: var(--spacing-08);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-card {
  background: var(--cds-layer-02);
  padding: var(--spacing-08) var(--spacing-07);
  border: 1px solid var(--cds-border-subtle-00);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  top: 0;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(15, 98, 254, 0.15);
}

.pricing-card.featured {
  border: 2px solid var(--cds-button-primary);
  position: relative;
}

.pricing-card.featured::before {
  content: "Most Popular";
  position: absolute;
  top: -15px;
  right: 20px;
  background: var(--cds-button-primary);
  color: white;
  padding: 4px 12px;
  font-size: 0.875rem;
  letter-spacing: 0.16px;
  transform: translateY(-100%);
}

.price {
  font-size: 2.625rem;
  color: var(--cds-text-primary);
  margin: var(--spacing-05) 0;
  font-weight: 300;
}

.pricing-card ul {
  list-style: none;
  margin: var(--spacing-07) 0;
}

.pricing-card li {
  margin-bottom: var(--spacing-04);
  color: var(--cds-text-secondary);
}

.pricing-cta {
  display: inline-block;
  padding: var(--spacing-04) var(--spacing-07);
  background: var(--cds-button-primary);
  color: white;
  text-decoration: none;
  transition: background-color 0.15s;
  font-size: 0.875rem;
  letter-spacing: 0.16px;
}

.pricing-cta:hover {
  background: var(--cds-link-02);
}

/* Platform statistics section */
#platform-stats {
  padding: var(--spacing-09) 5%;
  background: var(--cds-layer-02);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-07);
  margin-top: var(--spacing-08);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.stat-card {
  background: var(--cds-layer-02);
  padding: var(--spacing-07);
  border: 1px solid var(--cds-border-subtle-00);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(15, 98, 254, 0.15);
}

.stat-icon {
  margin-bottom: var(--spacing-06);
}

.stat-icon .bx--icon {
  width: 48px;
  height: 48px;
  fill: var(--cds-button-primary);
}

.stat-content h3 {
  font-size: 2.625rem;
  color: var(--cds-button-primary);
  margin-bottom: var(--spacing-03);
  font-weight: 300;
}

.stat-content p {
  color: var(--cds-text-secondary);
  font-size: 1.125rem;
}

/* Responsive adjustments for statistics section */
@media (max-width: 768px) {
  .stat-card {
    padding: var(--spacing-06);
  }

  .stat-content h3 {
    font-size: 2rem;
  }
}

/* Update icon containers */
.feature-icon,
.benefit-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-06);
  padding: var(--spacing-05);
  background-color: var(--cds-layer-01);
  border-radius: 0;
}

/* Add hover effects */
.feature-card:hover .bx--icon,
.benefit-card:hover .bx--icon {
  transform: scale(1.1);
  transition: transform 0.2s ease;
}

/* Carbon Design System icons */
.feature-icon .bx--icon,
.benefit-icon .bx--icon {
  width: 48px;
  height: 48px;
  fill: var(--cds-button-primary);
}

/* Contact section */
#contact {
  padding: var(--spacing-09) 5%;
  text-align: center;
  background: var(--cds-layer-02);
}

.contact-info {
  margin-top: var(--spacing-07);
  color: var(--cds-text-secondary);
}

/* Trusted Schools section */
#trusted-schools {
  padding: 4rem 2rem;
  background: var(--cds-layer-02);
}

#trusted-schools h2 {
  margin-bottom: 3rem;
  color: var(--cds-text-primary);
}

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

.school-logo {
  background: var(--cds-layer-02);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.school-logo:hover {
  transform: translateY(-5px);
}

.school-logo img {
  max-width: 150px;
  height: auto;
  margin-bottom: 1rem;
}

.school-logo p {
  color: var(--cds-text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* Footer */
footer {
  background: var(--cds-layer-01);
  color: var(--cds-text-primary);
  padding: var(--spacing-08) 5%;
  border-top: 1px solid var(--cds-border-subtle-00);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-08);
  margin-bottom: var(--spacing-07);
}

.footer-section h3 {
  margin-bottom: var(--spacing-05);
  font-weight: 400;
  font-size: 1rem;
}

.footer-section a {
  color: var(--cds-link-01);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-03);
  font-size: 0.875rem;
}

.footer-section a:hover {
  color: var(--cds-link-02);
}

.copyright {
  text-align: center;
  padding-top: var(--spacing-07);
  border-top: 1px solid var(--cds-border-subtle-00);
  color: var(--cds-text-secondary);
  font-size: 0.875rem;
}

/* Section headers */
section h2 {
  background: linear-gradient(
    135deg,
    var(--cds-button-primary) 0%,
    var(--cds-link-02) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 2.625rem;
  font-weight: 300;
  letter-spacing: -0.25px;
  line-height: 1.1;
  margin-bottom: var(--spacing-07);
}

/* Carbon buttons */
.bx--btn {
  font-size: 0.875rem;
  font-weight: 400;
  height: 48px;
  padding: 0 var(--spacing-07);
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.bx--btn--primary {
  background: var(--cds-button-primary);
  color: var(--cds-inverse-01);
}

.bx--btn--primary:hover {
  background: var(--cds-link-02);
}

.bx--btn--secondary {
  background: transparent;
  color: var(--cds-button-primary);
  border: 1px solid var(--cds-button-primary);
}

.bx--btn--secondary:hover {
  background: var(--cds-field-01);
}

/* Carbon typography */
h1:not(.slide-content h1) {
  background: linear-gradient(
    135deg,
    var(--cds-button-primary) 0%,
    var(--cds-link-02) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 3.375rem;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.25px;
}

h2 {
  font-size: 2rem;
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0;
}

p {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0;
}

/* Responsive design */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: var(--spacing-05);
  }

  .nav-links {
    margin-top: var(--spacing-05);
    flex-direction: column;
    width: 100%;
  }

  #hero {
    padding: var(--spacing-08) var(--spacing-05);
    text-align: center;
  }

  #hero h1 {
    font-size: 2rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .primary-button,
  .secondary-button {
    text-align: center;
  }

  .slide {
    background-position: center;
  }

  .slide-content {
    padding: var(--spacing-05);
    text-align: center;
  }

  .hero-slider {
    height: 80vh;
  }

  .feature-card,
  .benefit-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .feature-icon,
  .benefit-icon {
    margin-bottom: var(--spacing-05);
  }

  .feature-content,
  .benefit-content {
    width: 100%;
  }

  .feature-card ul {
    text-align: left;
  }
}

/* Modal styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1001;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(22, 22, 22, 0.7);
  opacity: 0;
  transition: opacity 0.3s ease;
  /* overflow-y: auto; <-- allow scrolling inside the modal */
}

.modal.show {
  display: block;
  opacity: 1;
}

.modal-content {
  background: var(--cds-layer-02);
  margin: 5% auto;
  padding: var(--spacing-07);
  width: 90%;
  max-width: 600px;
  position: relative;
  transform: translateY(-20px);
  transition: transform 0.3s ease;

  max-height: 90vh; /* <-- important: limit the modal content */
  overflow-y: auto; /* <-- make inner content scroll if it's too tall */
  border-radius: 8px; /* optional: for a nice rounded look */
}

.modal.show .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  right: var(--spacing-05);
  top: var(--spacing-05);
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--cds-text-secondary);
  transition: color 0.15s;
}

.modal-close:hover {
  color: var(--cds-text-primary);
}

.form-group {
  margin-bottom: var(--spacing-06);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-03);
  color: var(--cds-text-primary);
  font-size: 0.875rem;
}

.bx--text-input,
.bx--text-area {
  width: 100%;
  padding: var(--spacing-04);
  border: 1px solid var(--cds-border-subtle-00);
  background: var(--cds-field-01);
  color: var(--cds-text-primary);
  font-family: "IBM Plex Sans", sans-serif;
  transition: border-color 0.15s;
}

.bx--text-input:focus,
.bx--text-area:focus {
  outline: none;
  border-color: var(--cds-button-primary);
}

.bx--text-area {
  min-height: 100px;
  resize: vertical;
}

/* Simple spinner animation */
.spinner {
  border: 4px solid transparent;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  animation: spin 1s linear infinite;
}

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

/* Feedback message styles */
#feedbackMessage {
  margin-top: 10px;
  font-size: 1rem;
  padding: 10px;
  border-radius: 5px;
  text-align: center;
  font-weight: bold;
}

.success {
  background-color: #d4edda;
  color: #155724;
}

.error {
  background-color: #f8d7da;
  color: #721c24;
}

#preview h2 {
  text-align: center !important;
  font-size: 2rem;
  margin-bottom: 1rem;
}

#preview {
  padding: 2rem;
}

#preview img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  border-radius: 8px;
}