:root {
  --text: #000000;
  --bg-white: #FFFFFF;
  --bg-gray: #FAFAFA;
  --border: #eeeeee;

  /* Pattern tuning */
  --pattern-opacity: 1;          /* overall layer opacity */
  --pattern-size: 520px 520px;   /* repeat density */
  --pattern-blur: 0.2px;

  /* Pattern SVGs (encoded) */
  --pattern-gray: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'%3E%3Cg fill='none' stroke='%23999' stroke-opacity='0.08' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath id='p' d='M129 107 C-65 -34 305 -34 111 107'/%3E%3Cuse href='%23p' transform='rotate(72%20120%20120)'/%3E%3Cuse href='%23p' transform='rotate(144%20120%20120)'/%3E%3Cuse href='%23p' transform='rotate(216%20120%20120)'/%3E%3Cuse href='%23p' transform='rotate(288%20120%20120)'/%3E%3C/g%3E%3C/svg%3E");
}

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

body {
  font-family: Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color: var(--text);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navbar */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  background: var(--bg-white);
  z-index: 100;
  transition: transform 0.3s ease;
}

nav a {
  text-decoration: none;
  font-size: 1.3rem;
  color: var(--text);
  transition: opacity 0.2s ease;
}

nav a:hover {
  opacity: 0.75;
}

nav .logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

nav .logo-link {
  display: flex;
  align-items: center;
}

nav.hidden {
  transform: translateY(-100%);
}

a { color: var(--text); }
a:hover { opacity: 0.75; }

h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Mobile */
@media (max-width: 520px) {
  h1 {
    font-size: 1.75rem;
  }
}