/* ============================================================
   LUNERVIA — quiet software brand site
   - 따뜻한 크림/아이보리 톤 (Anthropic 의 종이 느낌 참고, 복제 X)
   - 검정 텍스트로 또렷한 대비, 포인트는 브라운/차콜로 절제
   ============================================================ */

/* -------- 1. Tokens -------- */
:root {
  /* 배경 단계 — 종이같은 크림톤 */
  --bg: #F7F3EA;
  --bg-soft: #EFE7DA;
  --bg-card: #FBF8F1;
  --bg-paper: #F4EFE2;

  /* 경계선 */
  --line-soft: #E5DDCE;
  --line: #D8CFC0;
  --line-strong: #BFB4A4;

  /* 텍스트 (검정 대비 충분히 확보) */
  --text: #1F1F1B;
  --text-2: #3D3933;
  --text-3: #5F5A50;
  --text-4: #8A8378;

  /* 포인트 — 절제된 브라운 + 차콜 */
  --accent: #8A6F4D;
  --accent-2: #6B5238;
  --accent-soft: rgba(138, 111, 77, 0.12);
  --accent-line: rgba(138, 111, 77, 0.42);
  --accent-glow: rgba(138, 111, 77, 0.22);

  --charcoal: #2F2F2A;
  --charcoal-soft: #45443D;

  /* 코드 에디터 (light/paper theme) */
  --code-bg: #FBF8F1;
  --code-bar: #EFE7DA;
  --code-line-num: #C0B6A3;
  --code-text: #2F2F2A;

  /* 라운드 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-pill: 999px;

  /* 모션 */
  --ease-out: cubic-bezier(0.22, 0.68, 0.24, 1);
  --ease-spring: cubic-bezier(0.34, 1.2, 0.46, 1);
  --t-fast: 0.18s;
  --t-mid: 0.32s;
  --t-slow: 0.56s;

  /* 레이아웃 */
  --max: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --nav-h: 64px;

  /* 글꼴 */
  --font-sans: "Plus Jakarta Sans", "Pretendard", system-ui, -apple-system, sans-serif;
  --font-display: "Space Grotesk", "Plus Jakarta Sans", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Consolas, Menlo, monospace;
}

/* -------- 2. Reset & base -------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-2);
  background-color: var(--bg);
  /* 종이 위 미세한 따뜻한 톤 변화 — 평평함을 부드럽게 풀어줌 */
  background-image:
    radial-gradient(1100px 700px at 84% -8%, rgba(138, 111, 77, 0.07), transparent 65%),
    radial-gradient(900px 600px at 8% -6%, rgba(47, 47, 42, 0.04), transparent 70%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

[hidden] {
  display: none !important;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: 0;
  background: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text);
}

p {
  margin: 0;
}

::selection {
  background: var(--charcoal);
  color: var(--bg);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 오버레이가 떠 있을 때 body 스크롤 잠금 */
body.why-open {
  overflow: hidden;
}

/* ============================================================
   SCROLL PROGRESS BAR — 상단에 얇게 진행률 표시
   ============================================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 110;
  background: transparent;
  pointer-events: none;
}

.scroll-progress-fill {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform-origin: left center;
  transition: width 0.12s linear;
}

/* -------- 3. Top navigation -------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 243, 234, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.nav-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: var(--nav-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  border-radius: var(--r-sm);
  cursor: pointer;
}

/* 헤더 워드마크 — 첨부 로고에 투명 여백이 많아 box 로 잘라(crop) 표시 */
.brand-logo {
  display: block;
  width: clamp(150px, 32vw, 208px);
  height: 26px;
  overflow: hidden;
}

.brand-img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  /* 흰색 로고를 크림 배경에서 보이도록 어둡게 변환합니다.
     (어두운 버전 로고를 따로 넣으면 이 filter 만 제거하세요) */
  filter: brightness(0);
  transition: opacity var(--t-mid) var(--ease-out);
}

.brand:hover .brand-img {
  opacity: 0.72;
}

.brand-text {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}

.brand-text-main {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
}

.brand-text-kr {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-3);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-menu a {
  position: relative;
  padding: 9px 14px;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-3);
  border-radius: var(--r-sm);
  transition: color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}

.nav-menu a:hover {
  color: var(--text);
  background: rgba(47, 47, 42, 0.05);
}

.nav-menu a:hover::after,
.nav-menu a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 1px;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: opacity var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border-radius: var(--r-sm);
  transition: background-color var(--t-fast) var(--ease-out);
}

.nav-toggle:hover {
  background: rgba(47, 47, 42, 0.06);
}

.nav-toggle > span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text);
  transition: transform var(--t-mid) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] > span:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] > span:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Why Lunervia 트리거 — 메뉴 안 버튼 (링크와 톤 맞춤) */
.nav-why {
  position: relative;
  padding: 9px 14px;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--r-sm);
  transition:
    background-color var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out),
    color var(--t-fast) var(--ease-out),
    transform var(--t-fast) var(--ease-out);
}

.nav-why:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* SNS 트리거 — 새 탭으로 sns.html 열기 (네비 링크와 톤은 비슷, 강조는 살짝) */
.nav-sns {
  position: relative;
  padding: 9px 14px;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-2);
  border-radius: var(--r-sm);
  background: linear-gradient(135deg, rgba(221, 42, 123, 0.08), rgba(81, 91, 212, 0.08));
  border: 1px solid var(--line-soft);
  transition:
    background var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out),
    color var(--t-fast) var(--ease-out),
    transform var(--t-fast) var(--ease-out);
}

.nav-sns:hover {
  color: var(--text);
  background: linear-gradient(135deg, rgba(221, 42, 123, 0.14), rgba(81, 91, 212, 0.14));
  border-color: var(--accent-line);
  transform: translateY(-1px);
}

/* 언어 토글 (KO / EN) */
.nav-lang {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(251, 248, 241, 0.6);
}

.nav-lang-btn {
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-3);
  border-radius: 999px;
  transition: color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}

.nav-lang-btn:hover {
  color: var(--text);
}

.nav-lang-btn.is-active {
  color: var(--bg-card);
  background: var(--charcoal);
}

.nav-lang-sep {
  color: var(--text-4);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

/* -------- 4. Section primitives -------- */
.section {
  width: 100%;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(64px, 9vw, 120px) var(--gutter);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.85rem, 4vw, 2.85rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 18px;
  max-width: 22ch;
}

.section-lead {
  max-width: 56ch;
  margin-bottom: clamp(36px, 5vw, 52px);
  font-size: 1.02rem;
  color: var(--text-3);
}

/* 섹션 번호 라벨 — '01 / About' 형태 */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

.section-label-num {
  color: var(--accent);
  font-weight: 600;
}

.section-label-sep {
  color: var(--text-4);
}

/* 부드러운 부유 유틸 — 파트너 카드 같은 곳에 사용 */
.float {
  animation: floatY 7s ease-in-out infinite;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

/* -------- 5. Reveal motion -------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* -------- 6. Hero -------- */
.hero {
  position: relative;
  padding-top: clamp(40px, 7vw, 88px);
  padding-bottom: clamp(60px, 9vw, 120px);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 720px;
  max-height: 720px;
  background: radial-gradient(closest-side, rgba(138, 111, 77, 0.16), transparent 70%);
  filter: blur(14px);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
}

.hero-copy,
.hero-code {
  min-width: 0;
}

.hero-copy {
  max-width: 540px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
  margin: 20px 0 24px;
}

.hero-title-soft {
  color: var(--text-2);
  font-weight: 400;
}

.hero-sub {
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--text-3);
  max-width: 42ch;
  margin: 0 0 36px;
}

.hero-sub-en {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: 0.94rem;
  letter-spacing: -0.005em;
  color: var(--text-4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 브랜드 키워드 칩 — hero 하단 (Software / UX / Web / Mobile / Letters / Translation) */
.brand-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
}

.brand-chips li {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
  transition: color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out);
}

.brand-chips li:hover {
  color: var(--accent);
  border-color: var(--accent-line);
  transform: translateY(-2px);
}

/* -------- 7. Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  min-height: 48px;
  font-family: var(--font-sans);
  font-size: 0.96rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  transition:
    background-color var(--t-fast) var(--ease-out),
    color var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out),
    transform var(--t-fast) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out);
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn-primary {
  background: var(--charcoal);
  color: var(--bg-card);
  box-shadow: 0 0 0 1px rgba(47, 47, 42, 0.06) inset;
}

.btn-primary:hover {
  background: #1F1F1B;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(47, 47, 42, 0.18);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn-icon .btn-arrow {
  transition: transform var(--t-fast) var(--ease-out);
}

.btn-icon:hover .btn-arrow {
  transform: translate(2px, -2px);
}

/* -------- 8. Hero terminal window -------- */
.hero-code {
  position: relative;
  width: 100%;
}

.codewin {
  position: relative;
  /* 따뜻한 다크 — 터미널 배경 */
  background: linear-gradient(162deg, #211d17 0%, #141109 100%);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 26px 54px rgba(47, 47, 42, 0.24),
    0 1px 0 rgba(255, 255, 255, 0.05) inset;
  transition:
    transform var(--t-mid) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out),
    border-color var(--t-mid) var(--ease-out);
}

.codewin:hover {
  transform: translateY(-3px);
  border-color: rgba(216, 185, 138, 0.3);
  box-shadow:
    0 32px 64px rgba(47, 47, 42, 0.3),
    0 0 46px rgba(138, 111, 77, 0.14);
}

.codewin-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.035);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* macOS 트래픽 라이트 — 고증 컬러 (close / minimize / zoom) */
.codewin-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 0.5px rgba(0, 0, 0, 0.22);
}

.codewin-dot-red { background: #FF5F56; }
.codewin-dot-yellow { background: #FFBD2E; }
.codewin-dot-green { background: #27C93F; }

.codewin-title {
  margin: 0 auto;
  /* 좌측 점 묶음 너비만큼 보정해 타이틀을 시각적 중앙에 둠 */
  padding-right: 52px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.4);
}

.codewin-body {
  padding: 26px 22px 42px;
  min-height: 198px;
  font-family: var(--font-mono);
}

.codewin-line {
  margin: 0;
  font-size: clamp(1rem, 2.1vw, 1.3rem);
  line-height: 1.65;
  letter-spacing: -0.005em;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.term-prompt {
  color: #6BE08A;
  font-weight: 700;
}

.term-dir {
  color: #79B8FF;
  font-weight: 700;
}

.typed-text {
  color: #F2EFE6;
  font-weight: 700;
}

/* 터미널 블록 커서 */
.caret {
  display: inline-block;
  width: 0.6ch;
  height: 1.12em;
  margin-left: 2px;
  vertical-align: -0.2em;
  background: #F2EFE6;
  border-radius: 1px;
  animation: caretBlink 1s steps(1) infinite;
}

@keyframes caretBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* -------- 9. About / Why teaser -------- */
.section-about {
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(900px 500px at 50% 0%, rgba(138, 111, 77, 0.07), transparent 65%),
    transparent;
}

.about .section-inner,
.section-inner.about {
  max-width: 760px;
}

.about-teaser {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
  margin-top: 6px;
  padding: clamp(26px, 4vw, 38px);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
}

.about-teaser p {
  font-size: 1.04rem;
  line-height: 1.78;
  color: var(--text-2);
  max-width: 58ch;
}

/* About 메타 그리드 — Founded / Based in / Focus / Stage */
.about-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2vw, 28px);
  margin-top: clamp(32px, 4vw, 48px);
  padding: clamp(22px, 3vw, 32px);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
}

.about-meta li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: clamp(8px, 2vw, 18px);
  border-right: 1px solid var(--line-soft);
}

.about-meta li:last-child {
  border-right: 0;
  padding-right: 0;
}

.about-meta-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.about-meta-value {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  font-weight: 500;
  color: var(--text);
  line-height: 1.35;
}

@media (max-width: 720px) {
  .about-meta {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 18px;
  }

  .about-meta li {
    border-right: 0;
    padding-right: 0;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-soft);
  }

  .about-meta li:nth-last-child(-n+2) {
    border-bottom: 0;
    padding-bottom: 0;
  }
}

/* -------- 9b. Philosophy / Brand Manifesto -------- */
.section-philosophy {
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(900px 540px at 80% 0%, rgba(138, 111, 77, 0.08), transparent 65%),
    transparent;
}

.philosophy-big {
  margin: clamp(18px, 3vw, 30px) 0 clamp(34px, 4vw, 52px);
  padding: clamp(26px, 4vw, 42px);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.012em;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-xl) var(--r-xl) 0;
  max-width: 62ch;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin: 0 0 clamp(36px, 5vw, 48px);
}

.manifesto-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 30px);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  transition:
    transform var(--t-mid) var(--ease-out),
    border-color var(--t-mid) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out);
}

.manifesto-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow: 0 20px 38px rgba(47, 47, 42, 0.08), 0 0 36px rgba(138, 111, 77, 0.06);
}

.manifesto-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0 0 2px;
}

.manifesto-name {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);
  margin: 0;
}

.manifesto-desc {
  font-size: 0.97rem;
  line-height: 1.7;
  color: var(--text-3);
  margin: 0;
}

.philosophy-cta {
  margin-top: 4px;
}

@media (max-width: 860px) {
  .manifesto-grid {
    grid-template-columns: 1fr;
  }
}

/* -------- 10. Product card -------- */
.section-products {
  border-top: 1px solid var(--line-soft);
}

.product-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-top: clamp(40px, 5vw, 64px);
  padding: clamp(28px, 4vw, 48px);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  transition:
    transform var(--t-mid) var(--ease-out),
    border-color var(--t-mid) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out);
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-line);
  box-shadow: 0 24px 50px rgba(47, 47, 42, 0.1), 0 0 50px rgba(138, 111, 77, 0.1);
}

.product-media {
  position: relative;
  width: 100%;
  min-width: 0;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(closest-side, rgba(138, 111, 77, 0.1), transparent 70%),
    var(--bg-paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-img,
.partner-img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  filter: drop-shadow(0 12px 28px rgba(47, 47, 42, 0.16));
}

.media-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--text-3);
  text-align: center;
  width: 100%;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.media-placeholder small {
  font-size: 0.74rem;
  color: var(--text-4);
  max-width: 100%;
  overflow-wrap: anywhere;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
}

.badge-soon {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

.badge-mute {
  color: var(--text-3);
  background: var(--bg-soft);
}

.product-name {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 12px;
}

.product-tagline {
  font-family: var(--font-display);
  font-size: 1.12rem;
  color: var(--text-2);
  margin-bottom: 18px;
}

.product-desc {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text-3);
  margin-bottom: 22px;
  max-width: 56ch;
}

.feature-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-pills li {
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-2);
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
}

/* -------- 11. Partner card -------- */
.section-partners {
  border-top: 1px solid var(--line-soft);
}

.partner-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-top: clamp(40px, 5vw, 64px);
  padding: clamp(28px, 4vw, 48px);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  transition:
    transform var(--t-mid) var(--ease-out),
    border-color var(--t-mid) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out);
}

.partner-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-line);
  box-shadow: 0 24px 50px rgba(47, 47, 42, 0.1), 0 0 50px rgba(138, 111, 77, 0.1);
}

.partner-media {
  position: relative;
  width: 100%;
  min-width: 0;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(closest-side, rgba(143, 170, 118, 0.16), transparent 72%),
    var(--bg-paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.partner-name {
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 14px;
  max-width: 22ch;
}

.partner-desc {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text-3);
  margin-bottom: 22px;
  max-width: 56ch;
}

.partner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* -------- 12. Contact -------- */
.section-contact {
  border-top: 1px solid var(--line-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin-top: 6px;
}

/* 4 카드(공식 인스타 / 개인 인스타 / 틱톡 / 이메일) 로 확장됐을 때 */
.contact-grid.contact-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 26px 24px;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  transition:
    transform var(--t-mid) var(--ease-out),
    border-color var(--t-mid) var(--ease-out),
    background-color var(--t-mid) var(--ease-out),
    box-shadow var(--t-mid) var(--ease-out);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  background: var(--bg-paper);
  box-shadow: 0 18px 38px rgba(47, 47, 42, 0.1), 0 0 36px rgba(138, 111, 77, 0.08);
}

.contact-card-soon {
  cursor: default;
}

.contact-card-soon:hover {
  transform: none;
  border-color: var(--line-soft);
  background: var(--bg-card);
  box-shadow: none;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.contact-handle {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.contact-meta {
  font-size: 0.94rem;
  color: var(--text-3);
  margin-bottom: 4px;
}

.contact-cta {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  border-top: 1px dashed var(--line);
  transition: color var(--t-fast) var(--ease-out);
}

.contact-card:hover .contact-cta {
  color: var(--accent);
}

/* -------- 13. Footer -------- */
.footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-soft);
}

.footer-top {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(54px, 8vw, 88px) var(--gutter) clamp(40px, 5vw, 60px);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(36px, 6vw, 80px);
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  border-radius: var(--r-sm);
}

.footer-brand-img {
  height: clamp(38px, 5.5vw, 52px);
  width: auto;
  max-width: 280px;
  /* 흰색 로고를 크림 배경에서 보이도록 어둡게 변환 */
  filter: brightness(0);
}

.footer-brand-text {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.1rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text);
}

.footer-tagline {
  max-width: 44ch;
  color: var(--text-3);
  font-size: 0.96rem;
  line-height: 1.75;
}

.footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 44px);
}

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

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.footer-col a,
.footer-soon {
  padding: 6px 0;
  font-size: 0.95rem;
  line-height: 1.4;
}

.footer-col a {
  color: var(--text-2);
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
}

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

.footer-soon {
  color: var(--text-4);
}

.footer-bottom {
  border-top: 1px solid var(--line-soft);
}

.footer-bottom-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 22px;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-3);
}

.footer-built {
  font-size: 0.85rem;
  color: var(--text-4);
}

.footer-top-link {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text-3);
  transition: color var(--t-fast) var(--ease-out);
}

.footer-top-link:hover {
  color: var(--text);
}

@media (max-width: 720px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .footer-top-link {
    margin-left: 0;
  }
}

/* -------- 14. Article (why.html) -------- */
.article-page {
  background: var(--bg);
}

.article-page-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) var(--gutter) clamp(64px, 9vw, 120px);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-3);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out), gap var(--t-fast) var(--ease-out);
}

.back-link:hover {
  color: var(--text);
  border-bottom-color: var(--text);
  gap: 10px;
}

.back-link-bottom {
  margin-top: clamp(48px, 7vw, 72px);
  margin-bottom: 0;
}

.article {
  display: flex;
  flex-direction: column;
}

.article-title {
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--text);
  margin: 6px 0 30px;
  line-height: 1.1;
  max-width: 22ch;
}

.article-body {
  display: flex;
  flex-direction: column;
  gap: 22px;
  font-size: 1.08rem;
  line-height: 1.88;
  color: var(--text-2);
}

.article-body p {
  max-width: 62ch;
}

.article-emphasis {
  padding: 22px 26px;
  margin: 8px 0;
  font-family: var(--font-display);
  font-size: 1.2rem !important;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--text) !important;
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  max-width: 62ch;
}

/* ============================================================
   WHY LUNERVIA · INTERNAL OVERLAY (브랜드 스토리룸이 열리는 느낌)
   - 새 탭이 아니라 사이트 내부에서 우측에서 부드럽게 펼쳐짐
   - 배경은 종이 위에 종이가 살짝 떠 있는 듯한 톤
   - body.why-open 일 때 배경이 살짝 흐려지고 어두워짐
   ============================================================ */
.why-overlay {
  position: fixed;
  inset: 0;
  z-index: 180;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
}

.why-overlay:not([hidden]) {
  pointer-events: auto;
}

.why-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(31, 31, 27, 0.32);
  backdrop-filter: blur(8px) saturate(115%);
  -webkit-backdrop-filter: blur(8px) saturate(115%);
  opacity: 0;
  transition: opacity 0.42s var(--ease-out);
}

.why-overlay.is-open .why-backdrop {
  opacity: 1;
}

.why-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(820px, 100%);
  height: 100%;
  background: var(--bg-card);
  background-image:
    radial-gradient(900px 540px at 100% 0%, rgba(138, 111, 77, 0.1), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(47, 47, 42, 0.04), transparent 70%);
  border-left: 1px solid var(--line);
  box-shadow: -32px 0 80px rgba(47, 47, 42, 0.18);
  transform: translateX(100%);
  transition: transform 0.6s var(--ease-spring);
}

.why-overlay.is-open .why-panel {
  transform: none;
}

.why-panel-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(24px, 4vw, 44px);
  background: rgba(251, 248, 241, 0.86);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.why-panel-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.why-close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-pill);
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--bg-card);
  transition:
    transform var(--t-fast) var(--ease-out),
    background-color var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out);
}

.why-close svg {
  width: 18px;
  height: 18px;
}

.why-close:hover {
  background: var(--bg-paper);
  border-color: var(--accent);
  transform: rotate(90deg);
}

.why-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.why-content {
  max-width: 660px;
  margin: 0 auto;
  padding: clamp(36px, 6vw, 64px) clamp(24px, 4vw, 44px) clamp(48px, 7vw, 88px);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.why-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.4vw, 2.8rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--text);
  line-height: 1.12;
  margin: 0 0 6px;
}

.why-intro {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.9vw, 1.28rem);
  font-weight: 500;
  line-height: 1.55;
  color: var(--text-2);
  margin: 0 0 8px;
}

.why-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1.04rem;
  line-height: 1.85;
  color: var(--text-2);
}

.why-body p {
  margin: 0;
  max-width: 60ch;
}

.why-emphasis {
  margin: 8px 0;
  padding: 24px 26px;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--text);
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  max-width: 60ch;
}

.why-en {
  margin-top: 4px;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-style: italic;
  color: var(--text-3);
  max-width: 60ch;
}

/* Why 안에 들어간 협업사 카드 */
.why-partners {
  margin-top: clamp(28px, 4vw, 40px);
  padding-top: clamp(24px, 3vw, 32px);
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.why-partners-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0;
}

.why-partners-intro {
  font-size: 0.98rem;
  color: var(--text-3);
  margin: 0 0 8px;
  max-width: 56ch;
}

.why-partner-card {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  padding: 18px;
  background: var(--bg-paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  align-items: start;
}

.why-partner-media {
  width: 92px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}

.why-partner-media img {
  width: 80%;
  height: 80%;
  object-fit: contain;
}

.why-partner-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.why-partner-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

.why-partner-desc {
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--text-2);
  margin: 0;
  max-width: 52ch;
}

.why-partner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 4px;
}

.why-partner-actions a {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
}

.why-partner-actions a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.why-foot {
  margin-top: clamp(28px, 4vw, 40px);
}

.why-back .btn-arrow-left {
  transition: transform var(--t-fast) var(--ease-out);
}

.why-back:hover .btn-arrow-left {
  transform: translateX(-3px);
}

@media (max-width: 720px) {
  .why-panel {
    width: 100%;
  }

  .why-partner-card {
    grid-template-columns: 64px 1fr;
    gap: 14px;
    padding: 14px;
  }

  .why-partner-media {
    width: 64px;
    height: 64px;
  }
}

/* ============================================================
   SNS PAGE — sns.html 전용
   - 페이지 골격(헤더/푸터/배경)은 크림 톤 그대로
   - 카드는 플랫폼 풀 브랜딩 (인스타 그라데이션 / 틱톡 블랙+글리치 글로우)
   ============================================================ */
.sns-page {
  background: var(--bg);
}

.sns-page-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px) var(--gutter) clamp(64px, 9vw, 120px);
}

.sns-hero {
  margin: 28px 0 clamp(36px, 5vw, 56px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
}

.sns-title {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 2.85rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--text);
  line-height: 1.12;
}

.sns-hero-lead {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.78;
  color: var(--text-3);
  max-width: 56ch;
}

/* 카드 그리드 */
.sns-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
  margin: 0 0 clamp(48px, 7vw, 72px);
}

@media (max-width: 720px) {
  .sns-grid {
    grid-template-columns: 1fr;
  }
}

/* 카드 공통 — 위치 컨테이너만 잡고 표면 디자인은 각 변형에서 */
.sns-card {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  isolation: isolate; /* 내부 ::before / glow 가 카드 밖으로 새지 않게 */
  min-height: 224px;
  transition: transform var(--t-mid) var(--ease-out), box-shadow var(--t-mid) var(--ease-out);
}

.sns-card:hover {
  transform: translateY(-4px);
}

.sns-card-link {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 30px);
  height: 100%;
}

.sns-card-link-disabled {
  cursor: default;
}

.sns-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.sns-card-platform {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.sns-card-icon {
  width: 22px;
  height: 22px;
  display: block;
}

.sns-card-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.sns-card-handle {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #fff;
  line-height: 1.15;
}

.sns-card-meta {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.86);
}

.sns-card-cta {
  position: relative;
  margin-top: auto;
  padding-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  overflow: hidden;
}

/* CTA 텍스트 위로 천천히 지나가는 은은한 광택 — 약 5초 주기 */
.sns-card-cta::after {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 0;
  left: -30%;
  width: 60%;
  background: linear-gradient(
    110deg,
    transparent 30%,
    rgba(255, 255, 255, 0.42) 50%,
    transparent 70%
  );
  pointer-events: none;
  transform: translateX(-100%);
  animation: ctaShimmer 5.4s ease-in-out infinite;
}

.sns-card-tiktok .sns-card-cta::after {
  background: linear-gradient(
    110deg,
    transparent 30%,
    rgba(37, 244, 238, 0.55) 50%,
    transparent 70%
  );
}

@keyframes ctaShimmer {
  0%   { transform: translateX(-50%); }
  55%  { transform: translateX(280%); }
  100% { transform: translateX(280%); }
}

/* 화살표 주변에 작은 반짝임 두 개 — 서로 어긋난 타이밍으로 깜박임 */
.sns-card-arrow {
  position: relative;
  display: inline-block;
  transition: transform var(--t-fast) var(--ease-out);
}

.sns-card-arrow::before,
.sns-card-arrow::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 5px currentColor;
  opacity: 0;
  pointer-events: none;
  animation: cardSparkle 2.8s ease-in-out infinite;
}

.sns-card-arrow::before {
  width: 3px;
  height: 3px;
  top: -6px;
  right: -7px;
  animation-delay: 0s;
}

.sns-card-arrow::after {
  width: 2px;
  height: 2px;
  bottom: -2px;
  left: -8px;
  animation-delay: 1.4s;
}

@keyframes cardSparkle {
  0%, 100%  { opacity: 0; transform: scale(0.4); }
  35%, 55%  { opacity: 1; transform: scale(1.3); }
}

/* 틱톡 카드는 시안 반짝임 */
.sns-card-tiktok .sns-card-arrow::before,
.sns-card-tiktok .sns-card-arrow::after {
  background: #25F4EE;
  box-shadow: 0 0 6px #25F4EE;
}

.sns-card:hover .sns-card-arrow {
  transform: translate(2px, -2px);
}

/* 이메일 카드는 비활성 — 반짝임 / 광택 제거 */
.sns-card-email-soon .sns-card-cta::after,
.sns-card-email-soon .sns-card-arrow::before,
.sns-card-email-soon .sns-card-arrow::after {
  display: none;
}

/* ===== 인스타 카드 — 풀 그라데이션 ===== */
.sns-card-instagram {
  background:
    linear-gradient(135deg,
      #F58529 0%,
      #DD2A7B 35%,
      #8134AF 70%,
      #515BD4 100%);
  background-size: 220% 220%;
  background-position: 0% 50%;
  box-shadow:
    0 18px 38px rgba(129, 52, 175, 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  animation: gradientShift 14s linear infinite;
}

.sns-card-instagram:hover {
  box-shadow:
    0 28px 60px rgba(129, 52, 175, 0.34),
    0 0 0 1px rgba(255, 255, 255, 0.16) inset;
}

/* 카드 위로 비스듬히 지나가는 광택 — 시각적 깊이용 */
.sns-card-shine {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg,
    transparent 35%,
    rgba(255, 255, 255, 0.18) 50%,
    transparent 65%);
  transform: translateX(-100%);
  transition: transform 0.9s var(--ease-out);
  z-index: 0;
}

.sns-card-instagram:hover .sns-card-shine {
  transform: translateX(100%);
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===== 틱톡 카드 — 블랙 + 시안/마젠타 글리치 글로우 ===== */
.sns-card-tiktok {
  background: #010101;
  color: #fff;
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.sns-card-tiktok:hover {
  box-shadow:
    0 28px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}

.sns-card-tiktok .sns-card-badge {
  background: rgba(37, 244, 238, 0.18);
  color: #25F4EE;
}

.sns-card-tiktok .sns-card-handle {
  color: #fff;
  text-shadow:
    -1px 0 0 rgba(254, 44, 85, 0.55),
     1px 0 0 rgba(37, 244, 238, 0.55);
  transition: text-shadow var(--t-mid) var(--ease-spring);
}

.sns-card-tiktok:hover .sns-card-handle {
  text-shadow:
    -2.5px 0 0 rgba(254, 44, 85, 0.75),
     2.5px 0 0 rgba(37, 244, 238, 0.75);
}

/* 두 가지 색의 흐릿한 글로우를 양쪽에 배치 — hover 시 더 강해짐 */
.sns-card-glow {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  pointer-events: none;
  transition: opacity var(--t-mid) var(--ease-out), transform var(--t-mid) var(--ease-out);
  z-index: 0;
}

.sns-card-glow-cyan {
  top: -80px;
  right: -80px;
  background: #25F4EE;
}

.sns-card-glow-magenta {
  bottom: -90px;
  left: -90px;
  background: #FE2C55;
}

.sns-card-tiktok:hover .sns-card-glow {
  opacity: 0.85;
}

.sns-card-tiktok:hover .sns-card-glow-cyan {
  transform: translate(-10px, 10px);
}

.sns-card-tiktok:hover .sns-card-glow-magenta {
  transform: translate(10px, -10px);
}

/* ===== 이메일 (조용한 카드) ===== */
.sns-card-email-soon {
  background: var(--bg-paper);
  border: 1px solid var(--line-soft);
  color: var(--text-2);
}

.sns-card-email-soon:hover {
  transform: none; /* 비활성 카드는 부상 X */
}

.sns-card-email-soon .sns-card-platform,
.sns-card-email-soon .sns-card-handle,
.sns-card-email-soon .sns-card-meta {
  color: var(--text-2);
}

.sns-card-email-soon .sns-card-platform {
  color: var(--accent);
}

.sns-card-email-soon .sns-card-handle {
  color: var(--text);
}

.sns-card-email-soon .sns-card-badge.sns-card-badge-mute {
  background: var(--bg-soft);
  color: var(--text-3);
}

/* -------- 15. Responsive -------- */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-copy {
    order: 1;
  }

  .hero-code {
    order: 2;
  }

  .product-card,
  .partner-card {
    grid-template-columns: 1fr;
  }

  .product-media,
  .partner-media {
    max-width: 360px;
    margin: 0 auto;
  }

  .contact-grid,
  .contact-grid.contact-grid-4 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav-lang {
    display: none;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: var(--gutter);
    right: var(--gutter);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    background: rgba(251, 248, 241, 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    box-shadow: 0 22px 40px rgba(47, 47, 42, 0.14);
    opacity: 0;
    transform: translateY(-8px) scale(0.99);
    pointer-events: none;
    transition: opacity var(--t-mid) var(--ease-out), transform var(--t-mid) var(--ease-out);
  }

  .nav-menu.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav-menu a {
    padding: 12px 14px;
    font-size: 1rem;
  }

  .nav-menu a::after {
    left: 14px;
    right: 14px;
  }

  .nav-why {
    margin-top: 6px;
    text-align: left;
    padding: 12px 14px;
    font-size: 1rem;
  }

  .contact-grid,
  .contact-grid.contact-grid-4 {
    grid-template-columns: 1fr;
  }

  .brand-text-kr {
    display: none;
  }

  .codewin-body {
    min-height: 188px;
    padding: 26px 24px 44px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .partner-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .partner-actions .btn {
    width: 100%;
  }
}

/* -------- 16. Reduced motion -------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .caret {
    opacity: 0.6;
    animation: none;
  }

  .float {
    animation: none;
  }

  .why-panel {
    transition: none;
  }

  .sns-card-instagram {
    animation: none;
    background-position: 50% 50%;
  }

  .sns-card-shine {
    display: none;
  }

  .sns-card-cta::after,
  .sns-card-arrow::before,
  .sns-card-arrow::after {
    animation: none;
    opacity: 0;
  }
}