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

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #10b981;
  --accent: #f59e0b;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-lighter: #f3f4f6;
  --border: #e5e7eb;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}

.logo-link:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.logo-img {
  height: 45px;
  width: auto;
  max-width: 180px;
  transition: all 0.3s ease;
  filter: brightness(1) contrast(1.1);
}

.logo-img:hover {
  transform: scale(1.02);
  filter: brightness(1.1) contrast(1.15);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--white);
}

.btn-nav {
  background: var(--white) !important;
  color: #667eea !important;
  padding: 0.5rem 1rem !important;
  border-radius: 0.375rem;
  font-weight: 600;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  padding: 80px 20px 100px;
  text-align: center;
}

.hero-content {
  margin-top: 3rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

/* Headings */
h1, h2, h3 {
  color: var(--text-dark);
}

h1 {
  font-size: 2.25rem;
  font-weight: 800;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  text-align: center;
  max-width: 600px;
  margin: -0.5rem auto 3rem;
}

/* Problem Section */
.problem {
  background: var(--bg-light);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.problem-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.problem-card p {
  color: var(--text-light);
  line-height: 1.8;
}

/* Solution Section */
.solution {
  background: var(--white);
}

.solution-content {
  max-width: 800px;
  margin: 2rem auto;
  text-align: center;
}

.solution-text {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* Workflow Section */
.workflow {
  background: var(--bg-lighter);
}

.steps-wrapper {
  margin-top: 3rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  margin: 0;
}

.step {
  background: var(--white);
  padding: 2rem 1.5rem;
  border-radius: 0.75rem;
  text-align: center;
  border: 2px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
}

.step:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
  transform: translateY(-4px);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step h3 {
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
  color: var(--text-dark);
}

.step p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

.step-arrow {
  display: none;
}

@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

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

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

.feature-card {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 0.75rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  background: var(--white);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Business Model Section */
.business-model {
  background: var(--bg-light);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.business-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 0.75rem;
  border-left: 4px solid var(--primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.business-card h3 {
  color: var(--primary);
  margin-bottom: 0.75rem;
}

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

/* Timeline Section */
.timeline {
  background: var(--white);
  text-align: center;
}

.milestones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.milestone {
  background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
  padding: 2rem;
  border-radius: 0.75rem;
  border: 2px solid var(--border);
  transition: all 0.3s ease;
  text-align: left;
  position: relative;
}

.milestone:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.15);
  transform: translateY(-5px);
  background: var(--white);
}

.milestone-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 auto 1rem;
  margin-left: 0;
}

.milestone h3 {
  color: var(--text-dark);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

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

.milestone li {
  color: var(--text-light);
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
  line-height: 1.6;
}

.milestone li:before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

.timeline-text {
  max-width: 700px;
  margin: 2rem auto;
  color: var(--text-light);
  line-height: 1.8;
  font-size: 1rem;
}

/* Audience Section */
.audience {
  background: var(--bg-lighter);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.audience-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 0.75rem;
  border: 2px solid var(--border);
  transition: all 0.3s ease;
}

.audience-card:hover {
  border-color: var(--secondary);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.audience-card h3 {
  color: var(--secondary);
  margin-bottom: 0.75rem;
}

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

/* Founder Section */
.founder {
  background: var(--white);
  text-align: center;
}

.founder-content {
  max-width: 700px;
  margin: 2rem auto;
}

.founder-content h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.founder-content p {
  color: var(--text-light);
  line-height: 1.8;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.cta > .container > p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.waitlist-form {
  display: flex;
  gap: 0.5rem;
  max-width: 500px;
  margin: 2rem auto;
  flex-wrap: wrap;
  justify-content: center;
}

.waitlist-form input {
  flex: 1;
  min-width: 250px;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 0.375rem;
  font-size: 1rem;
}

.waitlist-form button {
  padding: 0.75rem 2rem;
}

.form-note {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-top: 1rem;
}

/* Feedback Section */
.feedback {
  background: var(--bg-light);
  text-align: center;
}

.feedback-form {
  display: flex;
  flex-direction: column;
  max-width: 600px;
  margin: 2rem auto;
  gap: 1rem;
  padding: 0 20px;
}

.feedback-form input,
.feedback-form textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: 0.375rem;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.feedback-form input:focus,
.feedback-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.feedback-form textarea {
  resize: vertical;
  min-height: 120px;
  color: var(--text-dark);
}

.feedback-form textarea::placeholder {
  color: var(--text-light);
}

.feedback-form button {
  align-self: center;
  min-width: 200px;
}

/* Footer */
.footer {
  background: #1f2937;
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.footer-section p {
  color: #d1d5db;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #60a5fa;
  text-decoration: none;
}

.footer-section a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  color: #9ca3af;
}

/* Responsive */
@media (max-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  * {
    box-sizing: border-box;
  }

  body {
    width: 100%;
    overflow-x: hidden;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero h1 {
    font-size: 2rem;
    line-height: 1.3;
  }

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

  .container {
    padding: 0 15px;
    width: 100%;
  }

  /* Navigation */
  .nav-container {
    padding: 0.75rem 0;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav-links {
    gap: 0.75rem;
    font-size: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }

  .nav-links li {
    display: inline-block;
  }

  .nav-links a {
    padding: 0.5rem 0.75rem;
  }

  .btn-nav {
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  /* Hero Section */
  .hero {
    padding: 40px 20px 60px;
  }

  .hero-content {
    margin-top: 1.5rem;
  }

  /* Workflow Steps */
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .step {
    padding: 1.5rem 1rem;
  }

  .step h3 {
    font-size: 1rem;
  }

  .step p {
    font-size: 0.85rem;
  }

  /* Features Grid */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  /* Problem Grid */
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .problem-card {
    padding: 1.5rem;
  }

  .stat {
    font-size: 2rem;
  }

  /* Milestones */
  .milestones-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
  }

  .milestone {
    padding: 1.5rem;
  }

  /* Business Grid */
  .business-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .business-card {
    padding: 1.5rem;
  }

  /* Audience Grid */
  .audience-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .audience-card {
    padding: 1.5rem;
  }

  /* Sections */
  section {
    padding: 2.5rem 0;
  }

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

  /* Buttons */
  .btn {
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    width: auto;
  }

  .btn-primary {
    display: block;
    margin: 1rem auto;
    width: fit-content;
  }

  /* Waitlist Form */
  .waitlist-form {
    flex-direction: column;
    max-width: 100%;
    gap: 0.75rem;
    padding: 0 20px;
  }

  .waitlist-form input {
    width: 100%;
    min-width: unset;
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }

  .waitlist-form button {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }

  .form-note {
    font-size: 0.85rem;
    padding: 0 20px;
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  /* CTA */
  .cta > .container > p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .container {
    padding: 0 12px;
  }

  .nav-links {
    gap: 0.5rem;
    font-size: 0.75rem;
  }

  .nav-links a {
    padding: 0.4rem 0.5rem;
  }

  .btn-nav {
    padding: 0.4rem 0.8rem !important;
    font-size: 0.75rem;
  }

  .logo-img {
    height: 35px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .step {
    padding: 1rem 0.75rem;
  }

  .step h3 {
    font-size: 0.95rem;
  }

  .step p {
    font-size: 0.8rem;
  }

  .waitlist-form {
    padding: 0 15px;
    gap: 0.5rem;
  }

  .waitlist-form input,
  .waitlist-form button {
    font-size: 0.9rem;
    padding: 0.65rem 0.75rem;
  }

  section {
    padding: 1.5rem 0;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }

  .feature-icon {
    font-size: 2rem;
  }

  .milestone-badge {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  /* Feedback Form */
  .feedback-form {
    padding: 0 15px;
    gap: 0.75rem;
  }

  .feedback-form input,
  .feedback-form textarea {
    font-size: 0.9rem;
    padding: 0.65rem 0.75rem;
  }

  .feedback-form button {
    min-width: auto;
  }
}