/* CSS Variables */
:root {
  --brand-blue-1: #2bc2fd;
  --brand-blue-2: #02b6fd;
  --brand-blue-3: #0162EB;
  --brand-white-1: #fcfcfc;
  --brand-white-2: #f6f6fb;
  --brand-white-3: #eeeeee;
  --brand-red-1: #ff5165;
  --brand-red-2: #ff2c41;
  --brand-red-3: #ff2a43;
  --brand-yellow-1: #f9c74f;
  --brand-yellow-2: #fcdf27;
  --brand-yellow-3: #ffcd01;
  --brand-green-1: #b2dd00;
  --brand-green-2: #5bac00;
  --brand-green-3: #288a00;
  --brand-brown-1: #fa9801;
  --brand-brown-2: #de580f;
  --brand-brown-3: #9b333a;
  --brand-purple-1: #c647cf;
  --brand-purple-2: #a72cac;
  --brand-purple-3: #40469b;
  --brand-black-1: #333333;
  --brand-black-2: #222222;
  --brand-black-3: #111111;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--brand-black-1);
  background-color: var(--brand-white-1);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(252, 252, 252, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 20px;
}

.nav-logo .logo {
  height: 40px;
  width: auto;
}

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

.nav-menu a {
  text-decoration: none;
  color: var(--brand-black-1);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: var(--brand-blue-2);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--brand-black-1);
  transition: all 0.3s ease;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-blue-2), var(--brand-blue-3));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(2, 182, 253, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--brand-blue-2);
  border: 2px solid var(--brand-blue-2);
}

.btn-secondary:hover {
  background: var(--brand-blue-2);
  color: white;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Hero Section */
.hero {
  margin-top: 80px;
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--brand-white-2) 0%, var(--brand-white-1) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(43, 194, 253, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--brand-black-2);
  background: linear-gradient(135deg, var(--brand-blue-3), var(--brand-blue-1));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--brand-black-1);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand-blue-2);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--brand-black-1);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Floating Cards */
.hero-visual {
  position: relative;
  height: 500px;
}

.floating-card {
  position: absolute;
  background: white;
  padding: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 3s ease-in-out infinite;
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 40%;
  right: 10%;
  animation-delay: 1s;
  background: linear-gradient(135deg, var(--brand-green-2), var(--brand-green-3));
  color: white;
}

.card-3 {
  bottom: 15%;
  left: 20%;
  animation-delay: 2s;
  background: linear-gradient(135deg, var(--brand-yellow-2), var(--brand-brown-1));
}

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

.card-text {
  font-weight: 600;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--brand-black-2);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--brand-black-1);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  padding: 6rem 0;
  background: var(--brand-white-1);
}

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

.feature-card {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--brand-blue-1);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--brand-black-2);
}

.feature-description {
  color: var(--brand-black-1);
  line-height: 1.8;
}

/* How It Works Section */
.how-it-works {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--brand-white-2) 0%, var(--brand-white-1) 100%);
}

.steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  flex: 1;
  text-align: center;
  padding: 2rem;
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--brand-blue-2), var(--brand-blue-3));
  color: white;
  font-size: 2rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  box-shadow: 0 10px 30px rgba(2, 182, 253, 0.3);
}

.step-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--brand-black-2);
}

.step-description {
  color: var(--brand-black-1);
  line-height: 1.8;
}

.step-connector {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-blue-1), var(--brand-blue-3));
  margin: 0 1rem;
  position: relative;
  top: -60px;
}

/* Benefits Section */
.benefits {
  padding: 6rem 0;
  background: var(--brand-white-1);
}

.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.benefit-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.benefit-item:hover {
  transform: translateX(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.benefit-item h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--brand-black-2);
}

.benefit-item p {
  color: var(--brand-black-1);
  line-height: 1.6;
}

.benefits-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.benefits-image {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.tree-image {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* CTA Section */
.cta-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--brand-blue-3), var(--brand-blue-1));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1.5rem;
}

.cta-text {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn-primary {
  background: white;
  color: var(--brand-blue-3);
}

.cta-section .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: var(--brand-white-2);
}

.contact-form {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  padding: 3rem;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

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

.form-input,
.form-textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--brand-white-3);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-blue-2);
  box-shadow: 0 0 0 3px rgba(43, 194, 253, 0.1);
}

.form-input {
  margin-bottom: 1rem;
}

.form-textarea {
  margin-bottom: 1.5rem;
  resize: vertical;
}

/* Footer */
.footer {
  background: var(--brand-black-2);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 1rem;
  filter: brightness(0) invert(1);
}

.footer-description {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.footer-section h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--brand-blue-1);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--brand-blue-1);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background: white;
    width: 100%;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: left 0.3s ease;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .steps {
    flex-direction: column;
  }

  .step-connector {
    width: 3px;
    height: 60px;
    top: 0;
    margin: 1rem 0;
  }

  .benefits-content {
    grid-template-columns: 1fr;
  }

  .benefits-visual {
    order: -1;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 640px) {
  .hero-title {
    font-size: 2rem;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .btn-large {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }

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