/**
 * EOGROUND - 독립 정적 홈페이지 스타일
 *
 * 디자인 컨셉
 *  - "Dark Futuristic IT Holdings"
 *  - 어두운 네이비 베이스 + 블루/바이올렛/시안 그라데이션 액센트
 *  - 글래스모피즘 카드 + 라디얼 글로우 + 그리드 라인
 *  - 외부 이미지/라이브러리 없이 CSS 만으로 미래감 표현
 *
 * 구조
 *   1. CSS 변수 (디자인 토큰)
 *   2. 리셋 & 기본 타입
 *   3. 유틸리티 (컨테이너, 그라데이션 텍스트 등)
 *   4. 헤더 / 모바일 토글
 *   5. Hero 섹션 (홈)
 *   6. 일반 섹션 (intro, business, etc)
 *   7. 글래스 카드 (사업 영역 / 포트폴리오)
 *   8. Quavatar Showcase
 *   9. Page Header (서브페이지 공통)
 *  10. 콘텐츠 블록 / 컨택트
 *  11. 푸터
 *  12. 반응형
 */

/* ============================================================
 * 1. 디자인 토큰 (CSS Custom Properties)
 * ============================================================ */
:root {
  /* 베이스 컬러 - 다크 모드 톤 */
  --bg-base: #07091a;
  --bg-elevated: #0d1227;
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-strong: rgba(255, 255, 255, 0.07);

  /* 텍스트 컬러 */
  --text-primary: #f5f7ff;
  --text-secondary: rgba(245, 247, 255, 0.72);
  --text-muted: rgba(245, 247, 255, 0.5);
  --text-dim: rgba(245, 247, 255, 0.35);

  /* 브랜드 액센트 */
  --accent-blue: #3467fe;
  --accent-violet: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-glow: rgba(52, 103, 254, 0.35);

  /* 보더/디바이더 */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  /* 그라데이션 */
  --grad-brand: linear-gradient(135deg, #3467fe 0%, #8b5cf6 55%, #06b6d4 100%);
  --grad-text: linear-gradient(135deg, #ffffff 0%, #a5b4fc 50%, #67e8f9 100%);
  --grad-border: linear-gradient(135deg, rgba(52, 103, 254, 0.55), rgba(139, 92, 246, 0.45), rgba(6, 182, 212, 0.55));

  /* 타이포 */
  --font-main: "Montserrat", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* 레이아웃 */
  --max-width: 1200px;
  --header-height: 72px;

  /* 트랜지션 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ============================================================
 * 2. 리셋 & 기본 타입
 * ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-secondary);
  background: var(--bg-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 전역 배경 - 라디얼 글로우 + 그리드 라인 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -10%, rgba(52, 103, 254, 0.18), transparent 70%),
    radial-gradient(700px 500px at 105% 5%, rgba(139, 92, 246, 0.16), transparent 70%),
    radial-gradient(800px 600px at 50% 110%, rgba(6, 182, 212, 0.10), transparent 70%);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 35%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 35%, transparent 80%);
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--text-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ============================================================
 * 3. 유틸리티
 * ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

.text-gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.text-brand-gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* 외부 링크 화살표 */
.ext-arrow::after {
  content: "↗";
  display: inline-block;
  margin-left: 6px;
  font-size: 0.9em;
  transition: transform 0.25s var(--ease);
}

.ext-arrow:hover::after {
  transform: translate(2px, -2px);
}

/* ============================================================
 * 4. 헤더
 * ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(7, 9, 26, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo img {
  height: 36px;
  width: auto;
  filter: drop-shadow(0 0 6px rgba(52, 103, 254, 0.35));
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  position: relative;
  padding: 6px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s var(--ease);
}

.main-nav a.active,
.main-nav a:hover {
  color: var(--text-primary);
}

.main-nav a.active::after,
.main-nav a:hover::after {
  transform: scaleX(1);
}

/* Language switcher (KO | EN) */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  padding-left: 20px;
  border-left: 1px solid var(--border-subtle);
}

.lang-switch a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 4px 0;
}

.lang-switch a::after {
  display: none;
}

.lang-switch a.active,
.lang-switch a:hover {
  color: var(--text-primary);
}

.lang-divider {
  font-size: 12px;
  color: var(--text-dim);
  user-select: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: 0.3s;
}

/* ============================================================
 * 5. Hero 섹션 (홈 전용)
 * ============================================================ */
.hero {
  position: relative;
  margin-top: var(--header-height);
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  z-index: -1;
  filter: hue-rotate(-10deg) saturate(1.4) contrast(1.15);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(52, 103, 254, 0.35), transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(139, 92, 246, 0.28), transparent 55%),
    radial-gradient(circle at 50% 110%, rgba(6, 182, 212, 0.25), transparent 50%);
  z-index: -1;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 24px;
  max-width: 900px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  padding: 8px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-content .tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: 36px;
  letter-spacing: 0.02em;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  background: var(--grad-brand);
  box-shadow: 0 10px 32px rgba(52, 103, 254, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.hero-cta:hover {
  transform: translateY(-2px);
  color: var(--text-primary);
  box-shadow: 0 14px 40px rgba(52, 103, 254, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.14) inset;
}

/* ============================================================
 * 6. 일반 섹션
 * ============================================================ */
.section {
  padding: 25px 0;
  position: relative;
}

.section-alt {
  background: linear-gradient(180deg, transparent 0%, rgba(52, 103, 254, 0.04) 50%, transparent 100%);
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 4px;
  display: inline-block;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.section-text {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 100%;
  line-height: 1.85;
  word-break: normal;
  overflow-wrap: break-word;
  line-break: loose;
  text-wrap: pretty;
}

.section-text strong {
  font-weight: 600;
  white-space: normal;
}

/* 본문 텍스트 줄바꿈 — 섹션 전역 (KO/EN 공통) */
.showcase-text p,
.page-header p,
.content-block p,
.content-block li,
.business-card p,
.capability-chip p {
  word-break: normal;
  overflow-wrap: break-word;
  line-break: loose;
  text-wrap: pretty;
}

.showcase-text p strong,
.content-block strong,
.business-card p strong {
  white-space: normal;
}

/* ============================================================
 * 7. 글래스 카드 (사업 영역)
 * ============================================================ */
.business-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 14px;
}

.business-card {
  position: relative;
  padding: 36px 28px;
  border-radius: 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.business-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.business-card:hover {
  transform: translateY(-6px);
  background: var(--bg-glass-strong);
  border-color: transparent;
}

.business-card:hover::before {
  opacity: 1;
}

.business-card .icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--grad-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(52, 103, 254, 0.35);
}

.business-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.business-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Featured 카드 (Quavatar 강조용) */
.business-card.featured {
  background: linear-gradient(135deg, rgba(52, 103, 254, 0.12), rgba(139, 92, 246, 0.10), rgba(6, 182, 212, 0.08));
  border-color: transparent;
  grid-column: span 2;
  padding: 40px 32px;
}

.business-card.featured::before {
  opacity: 1;
}

.business-card.featured .badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--grad-brand);
  color: #fff;
  margin-bottom: 18px;
}

.business-card.featured h3 {
  font-size: 26px;
  margin-bottom: 14px;
}

.business-card.featured p {
  font-size: 15px;
  margin-bottom: 22px;
}

.business-card.featured .card-link {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
}

.business-card.featured .card-link:hover {
  color: var(--text-primary);
}

/* ============================================================
 * 8. Quavatar Showcase (홈 전용 풀폭 섹션)
 * ============================================================ */
.quavatar-showcase {
  position: relative;
  padding: 30px 0;
  overflow: hidden;
  isolation: isolate;
}

.quavatar-showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 30%, rgba(139, 92, 246, 0.22), transparent 50%),
    radial-gradient(circle at 85% 70%, rgba(6, 182, 212, 0.22), transparent 50%);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

.showcase-text .section-label {
  color: var(--accent-violet);
}

.showcase-text h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.showcase-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.showcase-text p:last-of-type {
  margin-bottom: 32px;
}

.showcase-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  background: var(--grad-brand);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.showcase-cta:hover {
  transform: translateY(-2px);
  color: var(--text-primary);
  box-shadow: 0 14px 40px rgba(139, 92, 246, 0.55);
}

/* Capability 칩 영역 */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.capability-chip {
  padding: 24px;
  border-radius: 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.capability-chip:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.capability-chip .chip-num {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
  display: block;
}

.capability-chip h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.capability-chip p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
 * 9. Page Header (서브페이지 공통)
 * ============================================================ */
.page-header {
  margin-top: var(--header-height);
  padding: 25px 0 15px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--border-subtle);
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 50%, rgba(52, 103, 254, 0.22), transparent 55%),
    radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.18), transparent 55%);
}

.page-header h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 7px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 100%;
}

/* ============================================================
 * 10. 콘텐츠 블록 / 컨택트
 * ============================================================ */
.content-block {
  margin-bottom: 12px;
  max-width: 100%;
}

.content-block h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
  letter-spacing: -0.01em;
  position: relative;
  padding-left: 16px;
}

.content-block h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.content-block p,
.content-block li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 5px;
}

.content-block ul {
  list-style: none;
  padding-left: 0;
}

.content-block ul li {
  position: relative;
  padding-left: 22px;
}

.content-block ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-brand);
  box-shadow: 0 0 8px var(--accent-glow);
}

.content-block strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.contact-item {
  padding: 32px;
  border-radius: 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.contact-item:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.contact-item h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.contact-item p,
.contact-item a {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.contact-item a {
  color: var(--text-primary);
}

.contact-item a:hover {
  color: var(--accent-cyan);
}

/* ============================================================
 * 10b. Founder 카드 (about.html 전용)
 *      - 큰 글래스 카드 + 그라데이션 보더
 *      - 좌측 인물 정보, 우측 커리어 타임라인
 * ============================================================ */
.founder-card {
  position: relative;
  padding: 20px 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(52, 103, 254, 0.10), rgba(139, 92, 246, 0.08), rgba(6, 182, 212, 0.06));
  border: 1px solid transparent;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}

.founder-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.founder-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 960px;
}

@media (max-width: 768px) {
  .founder-list {
    grid-template-columns: 1fr;
  }
}

.founder-meta .founder-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.founder-meta .founder-name {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.founder-meta .founder-role {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.founder-meta .founder-degree {
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.founder-meta .founder-degree strong {
  color: var(--text-secondary);
  font-weight: 500;
}

@media (max-width: 768px) {
  .founder-card {
    padding: 24px 20px;
  }
  .founder-meta .founder-name {
    font-size: 26px;
  }
}

/* ============================================================
 * 11. 푸터
 * ============================================================ */
.site-footer {
  margin-top: 20px;
  padding: 24px 0 12px;
  background: linear-gradient(180deg, transparent 0%, rgba(7, 9, 26, 0.6) 30%, var(--bg-elevated) 100%);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.footer-brand .footer-company {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.footer-brand .footer-info {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.85;
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom .footer-copy {
  font-size: 12px;
  color: var(--text-dim);
}

.footer-bottom .footer-policy {
  display: flex;
  gap: 24px;
}

.footer-bottom .footer-policy a {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-bottom .footer-policy a:hover {
  color: var(--text-primary);
}

/* ============================================================
 * 12. 반응형
 * ============================================================ */
@media (max-width: 960px) {
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .business-card.featured {
    grid-column: span 1;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(7, 9, 26, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--border-subtle);
    gap: 18px;
  }

  .main-nav.open {
    display: flex;
  }

  .section,
  .quavatar-showcase {
    padding: 16px 0;
  }

  .hero {
    min-height: 460px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}