:root {
  --color-bg: #0a0a0a;
  --color-primary: #f5f5f5;
  --color-accent: #ff5c00;
  --color-muted: #888;
  --font-display: 'Space Grotesk', sans-serif;
  --font-sans: 'Noto Sans KR', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-primary);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.site-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
}

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

.nav-toggle {
  display: none;
  width: 24px;
  height: 24px;
  border: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23f5f5f5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 6h16M4 12h16M4 18h16'/%3E%3C/svg%3E") center/contain no-repeat;
  cursor: pointer;
}

/* Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  color: #fff;
}

.hero-tagline {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 400px;
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section--alt {
  background: #111;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #fff;
}

/* Work */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.work-card {
  background: #141414;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color 0.2s;
}

.work-card:hover {
  border-color: var(--color-accent);
}

.work-image {
  height: 200px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
}

.work-body {
  padding: 1.25rem;
}

.work-cat {
  font-size: 0.75rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.5rem;
}

.work-card h3 {
  font-size: 1.1rem;
  font-weight: 500;
  color: #fff;
}

/* Services */
.services-list {
  list-style: none;
}

.services-list li {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--color-muted);
}

.services-list strong {
  color: #fff;
  margin-right: 0.5rem;
}

/* Contact */
#contact p {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
}

#contact strong {
  color: #fff;
}

/* Footer */
.footer {
  padding: 1.5rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .section {
    padding: 3rem 0;
  }
}