/* ========= G-LAMP HUFS — Base ========= */
:root {
  --c-primary: #0a2a5e;       /* HUFS deep navy */
  --c-primary-2: #143b86;
  --c-accent: #00a3a3;        /* teal accent (climate/env feel) */
  --c-accent-2: #f5a623;      /* warm highlight */
  --c-bg: #f6f8fb;
  --c-surface: #ffffff;
  --c-text: #1a1f2c;
  --c-muted: #5a6273;
  --c-border: #e4e8ef;
  --shadow-sm: 0 1px 3px rgba(10, 42, 94, 0.06);
  --shadow-md: 0 4px 16px rgba(10, 42, 94, 0.08);
  --radius: 10px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", Pretendard, Arial, sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ========= Header / Nav ========= */
.site-header {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; color: var(--c-primary);
  font-size: 18px; letter-spacing: -0.01em;
}
.brand-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 13px;
}
.brand-logo { height: 46px; width: auto; display: block; }
.brand small { display: block; font-weight: 500; color: var(--c-muted); font-size: 12px; letter-spacing: 0; }
.nav-menu { display: flex; gap: 6px; align-items: center; }
.nav-menu a {
  color: var(--c-text); padding: 8px 14px; border-radius: 6px;
  font-size: 14.5px; font-weight: 600;
}
.nav-menu a:hover { background: var(--c-bg); text-decoration: none; }
.nav-menu a.active { color: var(--c-primary); background: rgba(10,42,94,0.06); }
.nav-toggle { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--c-primary); }

@media (max-width: 880px) {
  .nav-menu {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 24px; gap: 0; display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 8px; width: 100%; }
  .nav-toggle { display: block; }
}

/* ========= Hero ========= */
.hero {
  background:
    radial-gradient(1100px 500px at 80% -10%, rgba(0,163,163,0.20), transparent 60%),
    radial-gradient(900px 400px at 10% 120%, rgba(245,166,35,0.10), transparent 60%),
    linear-gradient(135deg, #0a2a5e 0%, #143b86 60%, #1a4ea8 100%);
  color: #fff; padding: 88px 0 100px; position: relative; overflow: hidden;
}
.hero-eyebrow {
  display: inline-block; padding: 6px 14px; border: 1px solid rgba(255,255,255,0.3);
  border-radius: 999px; font-size: 13px; letter-spacing: 0.04em; margin-bottom: 22px;
  background: rgba(255,255,255,0.06);
}
.hero h1 {
  font-size: clamp(28px, 4.4vw, 46px); line-height: 1.18; margin: 0 0 18px;
  font-weight: 800; letter-spacing: -0.02em;
}
.hero h1 .accent { color: var(--c-accent); }
.hero p.lead {
  font-size: clamp(16px, 1.8vw, 19px); max-width: 760px; color: rgba(255,255,255,0.88);
  margin: 0 0 36px;
}
.hero-meta { display: flex; flex-wrap: wrap; gap: 30px 44px; }
.hero-meta .item .num { display: block; font-size: 30px; font-weight: 800; color: #fff; }
.hero-meta .item .label { display: block; font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 2px; }

/* ========= Section ========= */
.section { padding: 76px 0; }
.section.alt { background: var(--c-surface); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .kicker {
  display: inline-block; color: var(--c-accent); font-weight: 700;
  font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 34px); margin: 8px 0 12px;
  letter-spacing: -0.02em; color: var(--c-primary);
}
.section-head p { color: var(--c-muted); max-width: 720px; margin: 0 auto; }

/* ========= Cards ========= */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 980px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cards { grid-template-columns: 1fr; } }

.card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 24px; transition: all .2s ease;
  display: block; color: inherit;
}
.card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-color: rgba(10,42,94,0.20); text-decoration: none;
}
.card .ico {
  width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(10,42,94,0.08); color: var(--c-primary);
  font-size: 22px; margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; color: var(--c-primary); letter-spacing: -0.01em; }
.card .score {
  display: inline-block; background: var(--c-accent); color: #fff; font-size: 12px;
  font-weight: 700; padding: 3px 8px; border-radius: 4px; margin-left: 6px;
}
.card p { margin: 0; font-size: 14.5px; color: var(--c-muted); }
.card .more { margin-top: 14px; font-size: 13.5px; color: var(--c-primary-2); font-weight: 600; }

/* ========= Highlight strip ========= */
.strip {
  background: linear-gradient(180deg, var(--c-bg), var(--c-surface));
  border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border);
}
.strip-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; padding: 36px 0;
  text-align: center;
}
@media (max-width: 880px) { .strip-grid { grid-template-columns: repeat(2, 1fr); } }
.strip-grid .it .n { font-size: 24px; font-weight: 800; color: var(--c-primary); }
.strip-grid .it .l { font-size: 12.5px; color: var(--c-muted); }

/* ========= Sub page hero ========= */
.subhero {
  background: linear-gradient(135deg, #0a2a5e 0%, #143b86 100%);
  color: #fff; padding: 56px 0 64px;
}
.subhero .kicker { color: var(--c-accent); font-size: 13px; letter-spacing: 0.12em; font-weight: 700; text-transform: uppercase; }
.subhero h1 { margin: 8px 0 8px; font-size: clamp(24px, 3.6vw, 36px); letter-spacing: -0.02em; }
.subhero p { color: rgba(255,255,255,0.85); margin: 0; max-width: 760px; }
.subhero .badge {
  display: inline-block; background: var(--c-accent); color: #fff;
  padding: 4px 10px; border-radius: 4px; font-weight: 700; font-size: 13px; margin-left: 8px;
}

/* ========= Content blocks ========= */
.block { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 28px; margin-bottom: 22px; }
.block h2 { margin-top: 0; color: var(--c-primary); font-size: 22px; letter-spacing: -0.01em; border-bottom: 2px solid var(--c-primary); padding-bottom: 10px; margin-bottom: 18px; }
.block h3 { color: var(--c-primary-2); font-size: 17px; margin: 22px 0 10px; }
.block ul, .block ol { padding-left: 22px; margin: 8px 0; }
.block li { margin: 6px 0; }
.block p { margin: 8px 0; }

/* ========= Tables ========= */
table.t {
  width: 100%; border-collapse: collapse; margin: 14px 0;
  font-size: 14.5px; background: var(--c-surface);
}
table.t th, table.t td {
  border: 1px solid var(--c-border); padding: 10px 12px; text-align: left;
  vertical-align: top;
}
table.t thead th { background: var(--c-primary); color: #fff; font-weight: 700; }
table.t tbody tr:nth-child(even) { background: #fafbfd; }
.table-wrap { overflow-x: auto; }

/* ========= Tags / Pills ========= */
.tag {
  display: inline-block; padding: 4px 10px; background: rgba(10,42,94,0.08);
  color: var(--c-primary); border-radius: 999px; font-size: 12.5px; font-weight: 600; margin: 2px;
}
.tag.accent { background: rgba(0,163,163,0.15); color: #007878; }
.tag.warn { background: rgba(245,166,35,0.20); color: #b67500; }

/* ========= Grid layouts ========= */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 800px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
.kpi {
  background: linear-gradient(180deg, #fff, #f9fbfe);
  border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 18px 20px;
}
.kpi .num { font-size: 26px; font-weight: 800; color: var(--c-primary); }
.kpi .label { font-size: 13px; color: var(--c-muted); margin-top: 4px; }

/* ========= Timeline ========= */
.timeline { position: relative; margin: 20px 0; padding-left: 28px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 2px; background: var(--c-primary);
}
.timeline .item { position: relative; margin-bottom: 22px; }
.timeline .item::before {
  content: ""; position: absolute; left: -25px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--c-accent); border: 2px solid var(--c-primary);
}
.timeline .year { font-weight: 800; color: var(--c-primary); margin-bottom: 2px; }
.timeline .desc { font-size: 14.5px; color: var(--c-muted); }

/* ========= Footer ========= */
.site-footer {
  background: #0a1530; color: rgba(255,255,255,0.75);
  padding: 36px 0 24px; margin-top: 60px; font-size: 14px;
}
.site-footer .ft-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px;
}
@media (max-width: 760px) { .site-footer .ft-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; margin: 0 0 10px; font-size: 14px; }
.site-footer a { color: rgba(255,255,255,0.7); }
.site-footer a:hover { color: #fff; }
.site-footer .copy {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 14px; margin-top: 24px;
  font-size: 12.5px; color: rgba(255,255,255,0.55); text-align: center;
}

/* ========= Figures ========= */
.fig {
  display: block; max-width: 100%; height: auto; margin: 20px auto;
  border-radius: var(--radius); border: 1px solid var(--c-border); box-shadow: var(--shadow-sm);
}
.fig.fig-70 { max-width: 70%; }
.fig.fig-130 { width: 784px; }

/* ========= Misc ========= */
.muted { color: var(--c-muted); }
.center { text-align: center; }
.btn {
  display: inline-block; background: var(--c-accent); color: #fff;
  padding: 11px 22px; border-radius: 8px; font-weight: 700; font-size: 14.5px;
  border: 0; cursor: pointer; transition: all .2s ease;
}
.btn:hover { background: #008989; text-decoration: none; transform: translateY(-1px); }
.btn.ghost { background: transparent; border: 1px solid rgba(255,255,255,0.4); color: #fff; }
.btn.ghost:hover { background: rgba(255,255,255,0.1); }
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
hr.sep { border: 0; height: 1px; background: var(--c-border); margin: 24px 0; }