/* ===== 디자인 토큰 ===== */
:root {
  --bg: #0c0c0d;
  --bg-soft: #141416;
  --line: #2a2a2e;
  --line-soft: #1d1d20;
  --fg: #f2f2f0;
  --fg-dim: #8b8b90;
  --accent: #c6ff3a; /* brut.bot 시그니처 그린 — 로고/포인트 컬러 */
  --accent-ink: #0c0c0d;
  --radius: 10px;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Space Grotesk', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== 헤더 / 로고 ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(16px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(12, 12, 13, 0.82);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 12px; }

/* 로고 자리 — img 로 교체해도 같은 크기 유지 */
.brand__logo {
  display: inline-flex;
  width: 40px;
  height: 40px;
  color: var(--accent);
  flex: 0 0 auto;
}
.brand__logo img,
.brand__logo svg { width: 100%; height: 100%; object-fit: contain; }

.brand__text { font-family: var(--mono); font-weight: 800; font-size: 20px; letter-spacing: -0.5px; }
.brand__dot { color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-dim);
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.site-nav a:hover { color: var(--fg); background: var(--bg-soft); }
.site-nav__cta {
  color: var(--accent-ink) !important;
  background: var(--accent);
  font-weight: 600;
}
.site-nav__cta:hover { background: #d4ff63 !important; }

/* ===== 히어로 ===== */
.hero {
  padding: clamp(56px, 10vw, 120px) clamp(16px, 5vw, 56px) 48px;
  max-width: 1100px;
  margin: 0 auto;
}
.hero__eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 1px;
  margin: 0 0 16px;
}
.hero__title {
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1.05;
  margin: 0 0 20px;
  letter-spacing: -2px;
  font-weight: 700;
}
.hero__title .hl { color: var(--accent); }
.hero__sub { color: var(--fg-dim); font-size: clamp(15px, 2vw, 18px); margin: 0 0 40px; max-width: 540px; }

.hero__stats { display: flex; gap: clamp(24px, 6vw, 64px); margin-bottom: 20px; }
.stat { display: flex; flex-direction: column; }
.stat__num { font-family: var(--mono); font-size: clamp(28px, 5vw, 44px); font-weight: 800; line-height: 1; }
.stat__label { font-size: 12px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 1px; margin-top: 6px; }

.progress { height: 4px; background: var(--line-soft); border-radius: 4px; overflow: hidden; max-width: 460px; }
.progress__bar { height: 100%; background: var(--accent); width: 0; transition: width 0.8s ease; }

/* ===== 섹션 공통 ===== */
.section-title {
  font-family: var(--mono);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--fg-dim);
  margin: 0;
}

/* ===== 프로젝트 ===== */
.projects { max-width: 1100px; margin: 0 auto; padding: 24px clamp(16px, 5vw, 56px) 80px; }
.projects__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filter {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.filter:hover { color: var(--fg); border-color: var(--fg-dim); }
.filter.is-active { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }

.grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 28px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 28px;
  transition: transform 0.18s ease, border-color 0.18s ease;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 100% 0%, rgba(198, 255, 58, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.18s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card:hover::before { opacity: 1; }

.card__num {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 800;
  color: var(--fg-dim);
  flex: 0 0 auto;
  width: 44px;
}

.card__body { flex: 1 1 auto; min-width: 0; }
.card__heading { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.card__status {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--accent);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 6px;
  flex: 0 0 auto;
}
.card--wip .card__status { color: #ffb23a; }

.card__title { font-size: 20px; font-weight: 700; margin: 0; letter-spacing: -0.5px; }
.card__summary { color: var(--fg-dim); font-size: 14px; margin: 0; }

.card__side {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 0 0 auto;
  padding-right: 24px;
}
.card__tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  background: var(--line-soft);
  padding: 3px 8px;
  border-radius: 5px;
}
.card__date { font-family: var(--mono); font-size: 11px; color: var(--fg-dim); }

.card__arrow {
  position: absolute;
  top: 50%;
  right: 22px;
  margin-top: -8px;
  font-size: 16px;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.18s;
}
.card:hover .card__arrow { opacity: 1; transform: translateX(0); }

/* 좁은 화면에서는 세로로 스택 */
@media (max-width: 640px) {
  .card { flex-direction: column; align-items: flex-start; gap: 14px; }
  .card__side { flex-direction: row-reverse; justify-content: space-between; width: 100%; padding-right: 0; }
  .card__tags { justify-content: flex-start; }
  .card__arrow { top: 24px; margin-top: 0; }
}

.empty { color: var(--fg-dim); font-family: var(--mono); text-align: center; padding: 60px 0; }

/* ===== 소개 / 푸터 ===== */
.about { max-width: 720px; margin: 0 auto; padding: 0 clamp(16px, 5vw, 56px) 80px; }
.about p { color: var(--fg-dim); margin-top: 16px; }

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px clamp(16px, 5vw, 56px);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-dim);
}
.site-footer a:hover { color: var(--accent); }