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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: #fff;
  color: #111;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

a { text-decoration: none; color: inherit; }

/* navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px;
  height: 52px;
  background: #fff;
  border-bottom: 1px solid #eee;
}

.nav-logo {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 2px;
  color: #999;
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 12px;
  letter-spacing: 1.5px;
}

.nav-links a { color: #999; opacity: 0.7; transition: opacity 0.2s; }
.nav-links a:hover { opacity: 1; }

/* home header */
.home-header {
  margin-top: 52px;
  height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 32px;
}

.home-greeting {
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 400;
  letter-spacing: 1.5px;
  color: #999;
}

.home-subtext {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 1.5px;
  color: #999;
}

/* project grid - 3 columns */
.project-grid {
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  background: #fff;
}

.project-card {
  position: relative;
  overflow: hidden;
  display: block;
  aspect-ratio: 16 / 7;
  background: #2a2a2a;
  cursor: pointer;
  outline: 1px solid #e8e8e8;
}

/* hover overlay */
.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0) 55%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* card label */
.card-label {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.card-label .num {
  font-size: 10px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
  margin-bottom: 3px;
}

.card-label .title {
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 2px;
}

.card-label .sub {
  font-size: 10px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.5px;
}

/* card bg */
.card-bg {
  position: absolute;
  inset: 0;
  background-color: #2a2a2a;
  background-size: cover;
  background-position: center;
  filter: saturate(0.25);
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.4s ease;
}

/* hover */
.project-card:hover .card-bg { transform: scale(1.04); filter: saturate(1); }
.project-card:hover::after { opacity: 1; }
.project-card:hover .card-label { opacity: 1; transform: translateY(0); }