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

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background-color: #e9e2d6; /* warm paper beige */
  color: #1a1a1a;
  line-height: 1.6;
  margin: 0;
}

h1, h2 {
  letter-spacing: -0.5px;
}

p {
  color: #333;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #eee;
  z-index: 10;
}

.nav-container {
  max-width: 1000px;
  margin: auto;
  padding: 14px 24px;
  display: flex;
  justify-content: center;
}

.logo {
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a {
  margin-left: 20px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.5px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav-links a:hover {
  background: #f3f3f3;
  color: #4da3ff;
}

/* HERO */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 90px 40px;
}

.hero-card {
  max-width: 700px;
  width: 100%;

  background: #fff8ea; /* soft warm beige */
  border-radius: 16px;

  padding: 60px 40px;

  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);

  border: 1px solid rgba(0, 0, 0, 0.04);
}

.hero-content {
  max-width: 800px;
}

.hero-card h1 {
  font-size: 44px;
  margin-bottom: 12px;
}

.hero-card .subtitle {
  font-size: 18px;
  color: #5a5a5a;
  margin-bottom: 12px;
}

.hero-card .description {
  color: #666;
  margin-bottom: 24px;
}


.hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

/* BUTTONS */
.hero-buttons {
  margin-top: 20px;
}

.btn {
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
}

.primary {
  background: #4da3ff;
  color: #fff;
}

.primary:hover {
  background: #6bb4ff;
}

.secondary {
  border: 1px solid #333;
  color: #fff;
}

.secondary:hover {
  border-color: #555;
}

/* SECTIONS PLACEHOLDERS */
.section {
  max-width: 800px;
  margin: auto;
  padding: 80px 24px;
}

.section:not(:last-child) {
  border-bottom: 1px dashed #e6e6e6;
}

.section h2 {
  color: #1a1a1a;
}

.page {
  max-width: 1000px;
  margin: 60px auto;
  background: #fffdf8;
  border-radius: 16px;

  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.08),
    0 2px 6px rgba(0, 0, 0, 0.05);

  position: relative;
  overflow: hidden;
}

/* subtle paper texture effect */
.page::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 6px 6px;
  pointer-events: none;
  opacity: 0.4;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: #e9e2d6;
    color: #1a1a1a;
  }

  .page {
    background: #ffffff;
  }

  .nav {
    background: #ffffff;
    border-bottom: 1px solid #eee;
  }

  .nav-links a {
    color: #333;
  }

  .nav-links a:hover {
    color: #4da3ff;
  }

  .secondary {
    border: 1px solid #333;
    color: #1a1a1a;
  }
}

/*animations*/

.btn,
.nav-links a {
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
}

.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(77, 163, 255, 0.25);
}

.secondary:hover {
  transform: translateY(-2px);
  border-color: #4da3ff;
}

.nav-links a:hover {
  transform: translateY(-1px);
}

.btn:active,
.nav-links a:active {
  transform: translateY(0px);
}