:root {
  /* Premium Color Palette */
  --primary-h: 235;
  --primary-s: 75%;
  --primary-l: 60%;
  --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
  --primary-dark: hsl(var(--primary-h), var(--primary-s), 45%);
  --primary-light: hsl(var(--primary-h), var(--primary-s), 95%);

  --secondary: #10B981;
  --dark: #0F172A;
  --text-main: #334155;
  --text-muted: #64748B;
  --bg-light: #F8FAFC;
  --white: #FFFFFF;

  /* Modern Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-premium: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);

  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.landing-page {
  overflow-x: hidden;
}

/* --- Header --- */
.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  padding: 0.75rem 0;
  transition: var(--transition);
}

.landing-header-content {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.landing-logo-image {
  height: 100px;
  width: auto;
  object-fit: contain;
}

.landing-nav-menu {
  display: flex;
  gap: 2.5rem;
}

.landing-nav-link {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.landing-nav-link:after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

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

.landing-header-actions {
  display: flex;
  gap: 1rem;
}

.landing-demo-btn {
  padding: 0.625rem 1.5rem;
  color: var(--primary);
  text-decoration: none;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 0.9rem;
  border: 2px solid var(--primary-light);
  background: var(--primary-light);
  transition: var(--transition);
}

.landing-demo-btn:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.landing-login-btn {
  padding: 0.625rem 1.75rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
  transition: var(--transition);
}

.landing-login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
  background: var(--primary-dark);
}

/* --- Hero Section --- */
.landing-hero-section {
  padding: 160px 2rem 100px;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: center;
}

.landing-hero-title {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--dark);
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.landing-hero-description {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
  max-width: 600px;
}

.landing-get-started-btn {
  padding: 1.125rem 2.5rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 1rem;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 10px 25px -5px rgba(79, 70, 229, 0.4);
  transition: var(--transition);
}

.landing-get-started-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 35px -10px rgba(79, 70, 229, 0.5);
}

.landing-hero-images {
  position: relative;
  display: flex;
  justify-content: flex-end;
}

.landing-hero-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-premium);
  border: 1px solid rgba(226, 232, 240, 0.5);
  transition: var(--transition);
}

.landing-hero-image-mobile {
  position: absolute;
  bottom: -30px;
  left: -20px;
  width: 200px;
  border-radius: 1.25rem;
  box-shadow: var(--shadow-lg);
  border: 6px solid var(--white);
  transition: var(--transition);
}

/* --- Features Section --- */
.landing-features-section {
  padding: 120px 2rem;
  background: var(--bg-light);
  position: relative;
}

.landing-section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 1.25rem;
  text-align: center;
}

.landing-section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 5rem;
  text-align: center;
}

.landing-features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.landing-feature-card {
  background: var(--white);
  padding: 3rem 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.5);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.landing-feature-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-light);
}

.landing-feature-icon {
  font-size: 3.5rem;
  margin-bottom: 2rem;
}

.landing-feature-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark);
}

/* --- Steps Section --- */
.landing-steps-section {
  padding: 120px 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.landing-steps-container {
  display: flex;
  flex-direction: column;
  gap: 8rem;
  margin-top: 6rem;
}

.landing-step-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.landing-step-item:nth-child(even) {
  direction: rtl;
}

.landing-step-item:nth-child(even) .landing-step-card {
  direction: ltr;
}

.landing-step-number {
  font-size: 5rem;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 2px var(--primary-light);
  line-height: 1;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.landing-step-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.landing-step-description {
  font-size: 1.15rem;
  color: var(--text-muted);
}

.landing-step-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.landing-step-image:hover {
  transform: scale(1.02);
}

/* --- Feedback Forms Gallery --- */
.landing-feedback-forms-section {
  padding: 120px 2rem;
  background: var(--bg-light);
}

.landing-feedback-forms-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

.landing-feedback-form-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  background: var(--white);
  padding: 4rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-premium);
  align-items: center;
  border: 1px solid rgba(226, 232, 240, 0.4);
}

.landing-form-image-preview {
  width: 100%;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  border: 1px solid #f1f5f9;
}

.landing-form-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.landing-form-feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.landing-form-feature-check {
  color: var(--secondary);
  font-size: 1.25rem;
}

.landing-forms-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  max-width: 1200px;
  margin: 6rem auto 0;
  text-align: center;
}

.landing-forms-info-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.25rem 0 0.75rem;
  color: var(--dark);
}

/* --- Testimonials --- */
.landing-testimonials-section {
  padding: 120px 2rem;
  background: var(--white);
}

.landing-testimonials-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 3rem;
}

.landing-testimonial-card {
  background: var(--bg-light);
  padding: 3rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.3);
  transition: var(--transition);
}

.landing-testimonial-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.landing-testimonial-content {
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.landing-author-name {
  font-weight: 800;
  color: var(--dark);
  font-size: 1.1rem;
}

/* --- Footer --- */
.landing-footer {
  background: var(--dark);
  color: #94A3B8;
  padding: 100px 2rem 50px;
}

.landing-footer-content {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 5rem;
}

.landing-footer-title {
  color: var(--white);
  font-weight: 800;
  margin-bottom: 2rem;
  font-size: 1.25rem;
}

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

.landing-footer-links li {
  margin-bottom: 1rem;
}

.landing-footer-links a {
  color: #94A3B8;
  text-decoration: none;
  transition: var(--transition);
}

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

.landing-footer-bottom {
  max-width: 1280px;
  margin: 80px auto 0;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.9rem;
}

/* --- Scroll Animations --- */
.section-hidden {
  opacity: 0;
  transform: translateY(40px);
}

.section-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .landing-hero-section {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 140px;
    gap: 4rem;
  }

  .landing-hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .landing-hero-images {
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
  }

  .landing-step-item,
  .landing-feedback-form-card {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .landing-step-item:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .landing-header-content {
    flex-direction: column;
    gap: 1.5rem;
    padding: 1rem;
  }

  .landing-nav-menu {
    gap: 1.5rem;
  }

  .landing-footer-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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