:root {
  --primary-color: #0f172a;
  --secondary-color: #3b82f6;
  --accent-color: #0ea5e9;
  --text-main: #334155;
  --text-muted: #64748b;
  --bg-color: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;

  --font-main: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

h1,
h2,
h3,
h4 {
  color: var(--primary-color);
  font-weight: 700;
  line-height: 1.2;
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 5%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.logo-container img {
  height: 40px;
  width: auto;
  transition: transform 0.3s ease;
}

.logo-container:hover img {
  transform: scale(1.05);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--primary-color);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

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

nav ul li a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-main);
  position: relative;
}

nav ul li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-color);
  transition: width 0.3s ease;
}

nav ul li a:hover {
  color: var(--secondary-color);
}

nav ul li a:hover::after {
  width: 100%;
}

.cta-button {
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  color: white;
  padding: 0.6rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(59, 130, 246, 0.35);
  color: white;
}

/* Hero Section */
.hero {
  padding: 8rem 5% 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 100vh;
  gap: 4rem;
  background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.05), transparent 50%),
    radial-gradient(circle at bottom left, rgba(59, 130, 246, 0.05), transparent 50%);
}

.hero-content {
  flex: 1;
  animation: fadeInDown 1s ease-out forwards;
}

.hero-content 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;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.1rem;
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--secondary-color);
  color: var(--secondary-color);
  background: rgba(59, 130, 246, 0.05);
}

.hero-visual {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 1s ease-out forwards;
}

.visual-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: 20px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Decor shapes in hero */
.shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  opacity: 0.1;
  z-index: -1;
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: -50px;
  right: -50px;
}

.shape-2 {
  width: 200px;
  height: 200px;
  bottom: 50px;
  left: -100px;
}

/* Features Section */
.features {
  padding: 6rem 5%;
  background: var(--bg-card);
}

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

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  padding: 2.5rem;
  border-radius: 16px;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  border-color: rgba(59, 130, 246, 0.3);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--secondary-color);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

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

.feature-card p {
  color: var(--text-muted);
}

/* Core Philosophy */
.philosophy {
  padding: 6rem 5%;
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}

.philosophy-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.philosophy-header h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  line-height: 1.3;
}

.philosophy-body p {
  font-size: 1.15rem;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.philosophy-body p:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .philosophy-container {
    flex-direction: row;
    gap: 4rem;
    align-items: center;
  }

  .philosophy-header {
    flex: 1;
  }

  .philosophy-body {
    flex: 1.5;
  }
}

/* Footer */
footer {
  background: var(--primary-color);
  color: #f8fafc;
  padding: 4rem 5% 2rem;
}

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

/*.footer-brand .logo-container img {
  filter: brightness(1) invert(1);
  margin-bottom: 1.5rem;
}*/

.footer-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
}

.footer-links h4 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

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

.footer-links ul li {
  margin-bottom: 0.8rem;
}

.footer-links ul li a {
  color: #94a3b8;
  transition: color 0.3s ease;
}

.footer-links ul li a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 8rem;
  }

  .hero-content p {
    margin: 0 auto 2.5rem;
  }

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

  .mobile-menu-btn {
    display: block;
  }

  .cta-button {
    display: none;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
  }

  nav ul.show {
    display: flex;
  }
}