:root {
  --cta-gold: #b8860b;
  --cta-darker: #9a7209;
  --error-red: #e53935;
  --success-green: #6cbf6c;
  --primary-font: "Arial", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--primary-font);
  line-height: 1.6;
  color: #000;
  background: #fff;
  overflow-x: hidden;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #000;
  text-decoration: none;
  background-image: url(logo_black.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 150px;
  height: 40px;
  display: block;
}

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

.nav-links a {
  color: #000;
  text-decoration: none;
  font-weight: 400;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cta-gold);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Mobile navbar */
@media (max-width: 768px) {
  .navbar {
    justify-content: center;
  }

  .nav-links {
    display: none;
  }
}

.container {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.text-dark-gray {
  color: #666;
}
.text-muted {
  color: #9a9a9a;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 8rem;
}

.hero-logo {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease forwards;
  background-image: url(logo_black.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 300px;
  height: 80px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.hero-tagline {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.2s forwards;
}

.hero-sentence {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.4s forwards;
}

.hero-description {
  font-size: 1rem;
  text-align: justify;
  max-width: 625px;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.6s forwards;
  padding-inline: 1rem;
}

/* Courses Section */
.courses {
  background: #fafafa;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4rem;
  letter-spacing: -0.02em;
}

.course-item {
  display: flex;
  align-items: center;
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease;
}

.course-item.right {
  flex-direction: row-reverse;
  text-align: right;
  transform: translateX(50px);
}

.course-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.course-icon {
  width: 80px;
  height: 80px;
  background: var(--cta-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  margin: 0 3rem;
  flex-shrink: 0;
}

.course-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.course-content p {
  line-height: 1.8;
}

@media (max-width: 768px) {
  .course-item {
    flex-direction: column !important;
    text-align: center !important;
  }

  .course-icon {
    margin: 0 0 2rem 0;
  }
}

/* Why Us Section */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.why-card {
  background: white;
  padding: 3rem 2rem;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

.why-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.why-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  font-weight: 600;
  text-align: center;
}

.why-card p {
  line-height: 1.8;
  text-align: justify;
}

/* Free Trial Section */
.free-trial {
  background: #000;
  color: white;
  padding: 3rem 2rem;
  max-width: 100%;
}

.trial-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease;
}

.trial-content.visible {
  opacity: 1;
  transform: translateX(0);
}

.trial-text {
  font-size: 2rem;
  font-weight: 300;
  flex: 1;
}

.cta-button {
  background: var(--cta-gold);
  color: white;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.cta-button:hover {
  background: var(--cta-darker);
}

.cta-button:disabled {
  opacity: .65;
}

@media (max-width: 768px) {
  .trial-content {
    flex-direction: column;
    text-align: center;
  }

  .trial-text {
    margin-bottom: 2rem;
    font-size: 1.5rem;
  }
}

/* Pricing Section */
.pricing-wrapper {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  justify-content: space-between;
}

.pricing-card {
  background: white;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
  flex-grow: 0;
  flex-shrink: 1;
  width: 31%;
}
.pricing-card p {
  font-size: 0.85rem;
}

.pricing-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.pricing-card.featured {
  border-color: var(--cta-gold);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.pricing-card .price {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--cta-gold);
  margin-bottom: 2rem;
}
.pricing-card .price .per-month {
  font-size: 1.25rem;
  color: var(--cta-gold);
}
.pricing-card .price .disclaimer-asterisk {
  font-size: 1.1rem;
  vertical-align: super;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
}

.pricing-card li {
  margin-bottom: 0.5rem;
}

.pricing .pricing-disclaimer {
  display: inline-block;
  width: 100%;
  text-align: center;
  margin-top: 3rem;
}

/* Contact Section */
.contact {
  background: #fafafa;
}

.contact-content {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

.contact-content.visible {
  opacity: 1;
  transform: translateY(0);
}

.contact p {
  font-size: 1.45rem;
  margin-bottom: 4rem;
  margin-top: -1rem;
  text-align: center;
}

.contact-info {
  font-size: 1.2rem;
  color: #000;
  margin-bottom: 1rem;
}
.contact-info a {
  text-decoration: none;
  color: var(--cta-gold);
}
.contact-info a:visited {
  color: var(--cta-gold);
}

.contact-wrapper {
  display: grid;
  grid-template-rows: 100%;
  grid-template-columns: 50% 50%;
}

.contact-form {
  display: flex;
  flex-direction: column;
}

.contact-form-input {
  font-family: var(--primary-font);
  font-size: 1.2rem;
  border: 2px solid #d1d5dc;
  outline: none;
  padding: .5rem 1rem;
  width: 100%;
  border-radius: 8px;
}

textarea.contact-form-input {
  resize: none;
}

.contact-form-input:focus {
  border: 2px solid var(--cta-gold);
}

.contact-form-input::placeholder {
  font-size: 1.2rem;
}

.validation-error {
  color: var(--error-red)
}

input.is-invalid {
  border: 2px solid var(--error-red) !important;
}
textarea.is-invalid {
  border: 2px solid var(--error-red) !important;
}
input.is-valid {
  border: 2px solid var(--success-green) !important;
}
textarea.is-valid {
  border: 2px solid var(--success-green) !important;
}

button:disabled {
  cursor: not-allowed;
}

/* Footer */
.footer {
  background: #000;
  color: white;
  padding: 2rem;
  text-align: center;
}

.footer p {
  color: #999;
}

/* Animations */
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll animations */
.fade-in-element {
  opacity: 0;
  transition: all 0.8s ease;
}

.fade-in-element.visible {
  opacity: 1;
}