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

html {
  scroll-behavior: smooth;
}

:root {
  --primary-color: #0091bb;
  --secondary-color: #00c7ff;
  --text-dark: #2d3748;
  --text-light: #718096;
  --bg-light: #f7fafc;
  --white: #ffffff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
  font-family: "Helvetica", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Poppins", "Helvetica", Arial, sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.hero-container {
  padding: 200px 100px;
}
.hero-container .row {
  row-gap: 1em;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
}

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

.logo {
  font-family: "Poppins", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 40px; /* Fixed height for consistent sizing */
  width: auto; /* Maintain aspect ratio */
}

.logo i {
  font-size: 1.8rem;
  color: var(--secondary-color);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.cta-button {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.mobile-menu {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-dark);
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(
    135deg,
    rgba(0, 145, 187, 0.05),
    rgba(0, 199, 255, 0.05)
  );
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -50%;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent, rgba(0, 199, 255, 0.1));
  transform: skewX(-15deg);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: white;
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--bg-gradient);
}

.hero-card:hover {
  transform: rotate(0deg) scale(1.05);
}

.hero-card i {
  font-size: 4rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.tembo-logo {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.5rem;
}
.tembo-logo img {
  object-fit: contain;
  width: 100%;
}

.tembo-logo .logo-icon {
  font-size: 3.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.tembo-logo .logo-text {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--primary-color);
}

.tembo-logo .sub-text {
  font-size: 1rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* Features Section */
.features {
  padding: 6rem 0;
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-header p {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-card i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

/* About Section */
.about {
  padding: 6rem 0;
}

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

.about-text h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text-dark);
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-visual .hero-card {
  animation: float 3s ease-in-out infinite;
}

.about-visual .hero-card i {
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-light);
  border-radius: 10px;
}

.stat-card h3 {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-card p {
  color: var(--text-light);
  font-size: 0.9rem;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  position: fixed;
  width: 100%;
  background: rgba(0, 0, 0, 0.1);
  inset-inline: 0;
  padding-block: 1em;
  z-index: 35;
  backdrop-filter: blur(2px);
  top: 30px;
}

.countdown-item {
  background: var(--primary-color);
  color: white;
  padding: 1rem;
  border-radius: 8px;
  min-width: 70px;
  text-align: center;
}

.countdown-item .number {
  font-size: 1.8rem;
  font-weight: 700;
}

.countdown-item .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: var(--bg-light);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.contact-info p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  width: 30px;
}

.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: 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 h3 {
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

.footer-section a {
  color: #cbd5e0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #4a5568;
  color: #a0aec0;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  max-width: 500px;
  width: 90%;
  text-align: center;
}

.modal-header {
  margin-bottom: 1.5rem;
}

.modal-header h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.modal-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.btn-close {
  background: #e2e8f0;
  color: var(--text-dark);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-container {
    padding: 200px 50px !important;
  }
  .mobile-menu {
    display: block;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-card {
    padding: 1em;
  }

  .hero-text h1 {
    font-size: 2.5rem;
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
  }

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

  .hero-actions {
    justify-content: center;
  }

  .countdown {
    flex-wrap: wrap;
    top: 70px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes animateText {
  0% {
    opacity: 0.5;
    transform: translateX(-20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.text-animate {
  display: inline-block;
  white-space: pre-wrap;
  font-size: clamp(1rem, 4vw, 2.5rem);
  line-height: 1.2;
  animation: animateText 1s ease infinite;
  opacity: 0;
}

/* .countdown h3 {
  text-align: center;
  max-width: 90%;
  margin: 0 auto;
} */
.animate-fade-in {
  animation: fadeInUp 0.6s ease-out;
}