* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background-color: #000;
  color: #fff;
  overflow-x: hidden;
  line-height: 1.6;
}

html {
  scroll-behavior: smooth;
}

/* Animated Background */
.animated-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: pulse 4s ease-in-out infinite;
}

.orb-1 {
  top: -160px;
  right: -160px;
  width: 320px;
  height: 320px;
  background: rgba(168, 85, 247, 0.2);
}

.orb-2 {
  top: 160px;
  left: -160px;
  width: 384px;
  height: 384px;
  background: rgba(59, 130, 246, 0.2);
  animation-delay: 1s;
}

.orb-3 {
  bottom: 160px;
  right: 80px;
  width: 256px;
  height: 256px;
  background: rgba(34, 197, 94, 0.2);
  animation-delay: 2s;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(55, 65, 81, 0.5);
  backdrop-filter: blur(12px);
  background-color: rgba(0, 0, 0, 0.8);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo-container {
  position: relative;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(to right, #60a5fa, #a78bfa, #4ade80);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient 3s ease infinite;
}

.logo-dot {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 8px;
  height: 8px;
  background-color: #4ade80;
  border-radius: 50%;
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: #d1d5db;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: #60a5fa;
  transform: scale(1.05);
}

.launch-btn {
  position: relative;
  overflow: hidden;
  background: linear-gradient(to right, #2563eb, #7c3aed);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.launch-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.25);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background-color: #fff;
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 5rem 1rem 8rem;
}

.hero-container {
  max-width: 1024px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background: linear-gradient(to right, rgba(59, 130, 246, 0.1), rgba(168, 85, 247, 0.1));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 9999px;
  margin-bottom: 2rem;
  animation: fadeIn 1s ease-out;
}

.sparkles-icon {
  color: #60a5fa;
  margin-right: 0.5rem;
  animation: spin 3s linear infinite;
}

.hero-badge span {
  font-size: 0.875rem;
  color: #93c5fd;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #ffffff, #dbeafe, #e0e7ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #9ca3af;
  line-height: 1.6;
  max-width: 768px;
  margin: 0 auto 3rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.cta-btn {
  position: relative;
  overflow: hidden;
  background: linear-gradient(to right, #2563eb, #7c3aed, #059669);
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.25);
}

.arrow-icon {
  transition: transform 0.3s ease;
}

.cta-btn:hover .arrow-icon {
  transform: translateX(4px);
}

/* How it Works Section */
.how-it-works {
  padding: 6rem 1rem;
  background: linear-gradient(to bottom, rgba(17, 24, 39, 0.3), rgba(31, 41, 55, 0.3));
  position: relative;
}

.container {
  max-width: 1152px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4rem;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeIn 1s ease-out;
}

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

.step-card {
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.5), rgba(31, 41, 55, 0.5));
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  animation: fadeInUp 1s ease-out;
}

.step-card:hover {
  transform: scale(1.05);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.step-1 {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.2), rgba(79, 70, 229, 0.2));
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.step-1:hover {
  box-shadow: 0 25px 50px rgba(59, 130, 246, 0.1);
}

.step-2 {
  background: linear-gradient(135deg, rgba(88, 28, 135, 0.2), rgba(157, 23, 77, 0.2));
  border: 1px solid rgba(168, 85, 247, 0.2);
  animation-delay: 0.2s;
}

.step-2:hover {
  box-shadow: 0 25px 50px rgba(168, 85, 247, 0.1);
}

.step-3 {
  background: linear-gradient(135deg, rgba(20, 83, 45, 0.2), rgba(5, 150, 105, 0.2));
  border: 1px solid rgba(34, 197, 94, 0.2);
  animation-delay: 0.4s;
}

.step-3:hover {
  box-shadow: 0 25px 50px rgba(34, 197, 94, 0.1);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
  transition: transform 0.3s ease;
}

.step-1 .step-number {
  background: linear-gradient(to right, #3b82f6, #2563eb);
}

.step-2 .step-number {
  background: linear-gradient(to right, #a855f7, #7c3aed);
}

.step-3 .step-number {
  background: linear-gradient(to right, #22c55e, #16a34a);
}

.step-card:hover .step-number {
  animation: bounce 0.6s ease;
}

.step-icon {
  margin-bottom: 1rem;
  animation: float 3s ease-in-out infinite;
}

.step-1 .step-icon {
  color: #60a5fa;
}

.step-2 .step-icon {
  color: #c084fc;
  animation-delay: 1s;
}

.step-3 .step-icon {
  color: #4ade80;
  animation-delay: 2s;
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: white;
}

.step-card p {
  color: #9ca3af;
}

/* Features Section */
.features {
  padding: 6rem 1rem;
  position: relative;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 6rem;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-reverse .feature-content {
  order: 2;
}

.feature-reverse .feature-visual {
  order: 1;
}

.feature-content {
  animation: fadeInLeft 1s ease-out;
}

.feature-reverse .feature-content {
  animation: fadeInRight 1s ease-out;
}

.feature-visual {
  animation: fadeInRight 1s ease-out;
}

.feature-reverse .feature-visual {
  animation: fadeInLeft 1s ease-out;
}

.feature-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(to right, rgba(249, 115, 22, 0.1), rgba(239, 68, 68, 0.1));
  border: 1px solid rgba(249, 115, 22, 0.2);
  border-radius: 9999px;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: #fb923c;
}

.feature-badge-cyan {
  background: linear-gradient(to right, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: #22d3ee;
}

.feature-badge svg {
  margin-right: 0.5rem;
}

.feature-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #fb923c, #ef4444);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.feature-title-cyan {
  background: linear-gradient(to right, #22d3ee, #3b82f6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.feature-description {
  font-size: 1.25rem;
  color: #9ca3af;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.feature-btn {
  background: linear-gradient(to right, #ea580c, #dc2626);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.feature-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 25px rgba(249, 115, 22, 0.25);
}

.feature-btn-cyan {
  background: linear-gradient(to right, #0891b2, #2563eb);
}

.feature-btn-cyan:hover {
  box-shadow: 0 10px 25px rgba(6, 182, 212, 0.25);
}

.feature-visual {
  background: linear-gradient(135deg, rgba(31, 41, 55, 0.5), rgba(17, 24, 39, 0.5));
  border-radius: 1rem;
  padding: 3rem;
  border: 1px solid rgba(249, 115, 22, 0.2);
  transition: all 0.3s ease;
}

.feature-reverse .feature-visual {
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.feature-visual:hover {
  border-color: rgba(249, 115, 22, 0.4);
}

.feature-reverse .feature-visual:hover {
  border-color: rgba(6, 182, 212, 0.4);
}

.audio-player-mockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 256px;
}

.play-button {
  width: 80px;
  height: 80px;
  background: linear-gradient(to right, rgba(249, 115, 22, 0.2), rgba(239, 68, 68, 0.2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  animation: pulse 2s ease-in-out infinite;
  color: #fb923c;
}

.play-button svg {
  animation: bounce 2s ease-in-out infinite;
}

.progress-bars {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.progress-bar {
  height: 8px;
  border-radius: 4px;
  background-color: #4b5563;
}

.progress-bar.active {
  width: 192px;
  background: linear-gradient(to right, #f97316, #ef4444);
  animation: pulse 2s ease-in-out infinite;
}

.progress-bar:not(.active) {
  width: 128px;
}

.flashcards-mockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 256px;
}

.flashcard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.flashcard {
  width: 64px;
  height: 80px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  animation: float 3s ease-in-out infinite;
}

.flashcard:hover {
  transform: scale(1.1);
}

.flashcard-1 {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(59, 130, 246, 0.2));
  color: #22d3ee;
}

.flashcard-2 {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(236, 72, 153, 0.2));
  color: #c084fc;
  animation-delay: 0.5s;
}

.flashcard-3 {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(5, 150, 105, 0.2));
  color: #4ade80;
  animation-delay: 1s;
}

.flashcard-4 {
  background: linear-gradient(135deg, rgba(234, 179, 8, 0.2), rgba(249, 115, 22, 0.2));
  color: #facc15;
  animation-delay: 1.5s;
}

.mockup-label {
  font-size: 0.875rem;
  color: #9ca3af;
  margin-top: 1rem;
}

/* Testimonials Section */
.testimonials {
  padding: 6rem 1rem;
  background: linear-gradient(to bottom, rgba(17, 24, 39, 0.3), #000);
  position: relative;
}

.testimonials-title {
  background: linear-gradient(to right, #ec4899, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.testimonial-card {
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  animation: fadeInUp 1s ease-out;
}

.testimonial-card:hover {
  transform: scale(1.05);
}

.testimonial-1 {
  background: linear-gradient(135deg, rgba(157, 23, 77, 0.4), rgba(124, 58, 237, 0.4));
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.testimonial-1:hover {
  box-shadow: 0 25px 50px rgba(236, 72, 153, 0.2);
}

.testimonial-2 {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.4), rgba(6, 182, 212, 0.4));
  border: 1px solid rgba(59, 130, 246, 0.3);
  animation-delay: 0.2s;
}

.testimonial-2:hover {
  box-shadow: 0 25px 50px rgba(59, 130, 246, 0.2);
}

.testimonial-3 {
  background: linear-gradient(135deg, rgba(20, 83, 45, 0.4), rgba(5, 150, 105, 0.4));
  border: 1px solid rgba(34, 197, 94, 0.3);
  animation-delay: 0.4s;
}

.testimonial-3:hover {
  box-shadow: 0 25px 50px rgba(34, 197, 94, 0.2);
}

.testimonial-content {
  padding-top: 1.5rem;
}

.stars {
  display: flex;
  margin-bottom: 1rem;
}

.star {
  color: #fbbf24;
  animation: pulse 2s ease-in-out infinite;
}

.star:nth-child(1) {
  animation-delay: 0ms;
}
.star:nth-child(2) {
  animation-delay: 200ms;
}
.star:nth-child(3) {
  animation-delay: 400ms;
}
.star:nth-child(4) {
  animation-delay: 600ms;
}
.star:nth-child(5) {
  animation-delay: 800ms;
}

.testimonial-text {
  color: #f3f4f6;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  font-size: 1.125rem;
  font-weight: 500;
}

.testimonial-author {
  border-top: 1px solid rgba(236, 72, 153, 0.2);
  padding-top: 1rem;
}

.testimonial-2 .testimonial-author {
  border-top: 1px solid rgba(59, 130, 246, 0.2);
}

.testimonial-3 .testimonial-author {
  border-top: 1px solid rgba(34, 197, 94, 0.2);
}

.author-name {
  font-weight: 700;
  color: white;
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.author-role {
  font-weight: 500;
}

.testimonial-1 .author-role {
  color: #f9a8d4;
}

.testimonial-2 .author-role {
  color: #93c5fd;
}

.testimonial-3 .author-role {
  color: #86efac;
}

/* Footer */
.footer {
  padding: 3rem 1rem;
  border-top: 1px solid #374151;
  background: linear-gradient(to right, rgba(17, 24, 39, 0.5), #000);
}

.footer-text {
  text-align: center;
  color: #9ca3af;
}

.footer-brand {
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
}

/* Animations */
@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes bounce {
  0%,
  20%,
  53%,
  80%,
  100% {
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translate3d(0, 0, 0);
  }
  40%,
  43% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translate3d(0, -30px, 0);
  }
  70% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-right {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .feature-reverse .feature-content,
  .feature-reverse .feature-visual {
    order: unset;
  }

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

  .feature-description {
    font-size: 1rem;
  }

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

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

@media (max-width: 480px) {
  .hero {
    padding: 3rem 1rem 5rem;
  }

  .how-it-works,
  .features,
  .testimonials {
    padding: 4rem 1rem;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.75rem;
  }
}
/* --- NEW: Waitlist Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: none; /* Initially hidden */
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.visible {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.8), rgba(31, 41, 55, 0.8));
    border: 1px solid rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    text-align: center;
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

.close-button {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    color: #9ca3af;
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}

.close-button:hover {
    color: #fff;
    transform: rotate(90deg);
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.waitlist-input {
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid #374151;
    color: #fff;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: "Inter", sans-serif;
    transition: border-color 0.3s ease;
}

.waitlist-input:focus {
    outline: none;
    border-color: #3b82f6;
}

#waitlist-message {
    margin-top: 1.5rem;
    color: #4ade80;
    font-size: 1.125rem;
    font-weight: 500;
}