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

:root {
  --primary: #4A2C2A;
  --accent: #C67C4E;
  --bg: #FFFFFF;
  --text: #333333;
  --secondary-bg: #F5F0EB;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  padding-top: var(--nav-height);
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  font-weight: 600;
  transition: background 0.3s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--primary);
  color: #fff;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 40px;
  max-width: 600px;
}

.card {
  background: var(--bg);
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
  z-index: 1000;
  display: flex;
  align-items: center;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 700;
}

.logo img {
  height: 40px;
}

nav {
  display: flex;
  gap: 24px;
}

nav a {
  color: var(--text);
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--accent);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: 0.3s;
}

footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  text-align: center;
  padding: 32px 20px;
  font-size: 0.9rem;
}

footer a {
  color: rgba(255,255,255,0.8);
}

footer a:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  nav {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    flex-direction: column;
    padding: 20px;
    gap: 16px;
  }

  nav.active {
    display: flex;
  }

  .section {
    padding: 48px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }
}