/* SoloForge 회사 웹사이트 — 공통 스타일
   플레인 CSS (빌드 불필요). 시스템 폰트(외부 @import 없음 → 빠름·CLS 없음).
   접근성: 의미론적 대비, focus-visible 링, prefers-reduced-motion 존중. */

:root {
  --bg: #0e131f;
  --bg-soft: #161c28;
  --bg-card: #1a202c;
  --bg-card-hover: #222a38;
  --line: #2a3344;
  --text: #f4f6fb;
  --text-soft: #aeb6c6;
  --text-dim: #7d8699;
  --accent: #f97316;       /* Forge 오렌지 */
  --accent-soft: #ffb690;
  --accent-ink: #1a1205;
  --radius: 14px;
  --maxw: 1040px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
    "Malgun Gothic", "Noto Sans KR", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-soft); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ── Skip link (a11y) ── */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 0 0 8px 0; font-weight: 700;
}
.skip-link:focus { left: 0; }

/* ── Header / Nav ── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 19, 31, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #c2410c);
  display: grid; place-items: center; color: #fff; font-weight: 900; font-size: 0.95rem;
}
.nav-links { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.nav-links a {
  color: var(--text-soft); padding: 8px 12px; border-radius: 8px;
  font-size: 0.93rem; font-weight: 600;
}
.nav-links a:hover { color: var(--text); background: var(--bg-card); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--accent-soft); background: var(--bg-card); }

/* ── Buttons ── */
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  font-weight: 700; font-size: 0.95rem; cursor: pointer; border: 1px solid transparent;
  transition: transform 0.12s ease, opacity 0.12s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), #ea580c); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); opacity: 0.95; }
.btn-ghost { background: var(--bg-card); color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-card-hover); }

/* ── Hero ── */
.hero { padding: 84px 0 64px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-soft);
  border: 1px solid var(--line); padding: 5px 12px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.2; margin: 0 0 18px; letter-spacing: -0.01em; }
.hero p.lead { font-size: clamp(1rem, 2.2vw, 1.2rem); color: var(--text-soft); max-width: 660px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Sections ── */
section { padding: 52px 0; }
.section-title { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0 0 8px; }
.section-sub { color: var(--text-dim); margin: 0 0 32px; }

/* ── Cards / grid ── */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { margin: 0 0 6px; font-size: 1.2rem; }
.card .tag { font-size: 0.78rem; color: var(--accent-soft); font-weight: 700; letter-spacing: 0.04em; }
.card p { color: var(--text-soft); margin: 10px 0 0; font-size: 0.95rem; }
.card .meta { color: var(--text-dim); font-size: 0.85rem; margin-top: 14px; }

/* ── Feature (moat) blocks ── */
.feature { display: flex; gap: 16px; align-items: flex-start; }
.feature .num {
  flex: none; width: 38px; height: 38px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid var(--line);
  display: grid; place-items: center; color: var(--accent-soft); font-weight: 900;
}
.feature h3 { margin: 4px 0 4px; font-size: 1.1rem; }
.feature p { margin: 0; color: var(--text-soft); font-size: 0.94rem; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 420px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); }
th { color: var(--text); background: var(--bg-soft); font-weight: 700; }
td { color: var(--text-soft); }
tr:last-child td { border-bottom: none; }

/* ── Legal / prose ── */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.25rem; margin: 32px 0 8px; }
.prose h3 { font-size: 1.05rem; margin: 22px 0 6px; }
.prose p, .prose li { color: var(--text-soft); }
.prose ul { padding-left: 20px; }
.note {
  background: var(--bg-soft); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 14px 18px; color: var(--text-soft); font-size: 0.9rem;
}
.todo { color: var(--accent-soft); font-weight: 700; }

/* ── Project showcase (screenshots) ── */
.project-feature { margin-bottom: 22px; }
.project-feature h3 { font-size: 1.4rem; }
.shots {
  display: flex; gap: 14px; overflow-x: auto;
  padding: 10px 2px 14px; margin-top: 18px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.shots img {
  width: 184px; flex: none; border-radius: 18px;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  scroll-snap-align: start; background: var(--bg-soft);
}
.shots.wide img { width: 300px; border-radius: 12px; }
.shots-note { color: var(--text-dim); font-size: 0.82rem; margin-top: 2px; }

/* ── Evidence chips (about) ── */
.ev {
  display: inline-block; font-size: 0.85rem; color: var(--text-soft);
  background: var(--bg-soft); border: 1px solid var(--line);
  padding: 6px 14px; border-radius: 999px;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 36px 0; margin-top: 40px; font-size: 0.88rem; color: var(--text-dim);
}
.site-footer .cols { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; }
.site-footer h4 { color: var(--text); margin: 0 0 8px; font-size: 0.92rem; }
.site-footer a { color: var(--text-soft); }
.site-footer .legal { line-height: 1.9; }
.site-footer .copyright { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--text-dim); }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}