/* ================================================
   Botanical Intelligence — 다크 에디토리얼 디자인 시스템
   영감: 순수 블랙 배경 + 원형 블롭 배치 + 대형 타이포그래피
================================================ */

/* ---- CSS 변수 ---- */
:root {
  --black:       #000000;
  --white:       #ffffff;
  --dim:         rgba(255,255,255,0.35);
  --muted:       rgba(255,255,255,0.18);
  --border:      rgba(255,255,255,0.1);
  --green:       #3ddc84;
  --green-dim:   rgba(61,220,132,0.15);

  --font-head:   'Manrope', sans-serif;
  --font-body:   'Inter', sans-serif;

  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --spring:      cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---- 기본 리셋 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: default;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; font-family: var(--font-body); }

/* =====================================================
   히어로 전체화면
===================================================== */
.hero-full {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 700px;
  background: var(--black);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- 상단 네비게이션 ---- */
.top-nav {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 2rem;
  z-index: 50;
}

/* 로고 마크 */
.logo-mark {
  display: flex;
  align-items: center;
  opacity: 0.9;
  transition: opacity 0.2s;
}
.logo-mark:hover { opacity: 1; }

/* 중앙 필 버튼 그룹 */
.center-pill {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 0.45rem 0.6rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.pill-btn {
  background: none;
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
  letter-spacing: 0.01em;
}
.pill-btn:hover { background: rgba(255,255,255,0.1); }
.pill-btn.icon-only { padding: 0.35rem 0.6rem; }
.pill-icon { font-size: 1rem; }
.pill-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin: 0 0.2rem;
}
.scroll-pct {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--dim);
  padding: 0.35rem 0.7rem;
  letter-spacing: 0.02em;
  min-width: 2.5rem;
  text-align: center;
}

/* 우측 */
.top-right {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.icon-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background 0.2s;
}
.icon-circle:hover { background: rgba(255,255,255,0.15); }

.btn-get-started {
  background: var(--white);
  color: var(--black);
  padding: 0.55rem 1.2rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform 0.2s var(--spring), opacity 0.2s;
}
.btn-get-started:hover { transform: scale(1.03); opacity: 0.9; }

/* =====================================================
   원형 블롭 이미지 배치
===================================================== */
.orbit-stage {
  position: relative;
  width: 500px;
  height: 500px;
  flex-shrink: 0;
}

/* 중앙 업로드 박스 */
.orbit-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}
.upload-box {
  width: 110px;
  height: 110px;
  background: rgba(255,255,255,0.07);
  border: 1.5px solid var(--border);
  border-radius: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s var(--spring);
}
.upload-box:hover {
  background: rgba(255,255,255,0.12);
  transform: scale(1.04);
}
.upload-label {
  font-size: 0.6rem;
  color: var(--dim);
  text-align: center;
  line-height: 1.3;
  max-width: 70px;
}

/* 궤도 아이템 배치 */
.orbit-item {
  position: absolute;
  top: 50%;
  left: 50%;
  /* CSS 커스텀 속성으로 각도·반경 제어 */
  transform:
    translate(-50%, -50%)
    rotate(var(--angle))
    translateX(var(--r))
    rotate(calc(-1 * var(--angle)));
}

/* 블롭 이미지 */
.blob-img {
  width: 120px;
  height: 140px;
  overflow: hidden;
  border-radius: 50% 40% 55% 45% / 50% 55% 45% 50%;
  transition: transform 0.4s var(--spring), filter 0.3s;
  cursor: pointer;
}
.blob-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.82) saturate(0.9);
  transition: filter 0.3s;
}
.blob-img:hover img { filter: brightness(1) saturate(1.1); }
.blob-img:hover { transform: scale(1.07); }

/* 블롭 모양 변형 */
.blob-2 { border-radius: 55% 45% 40% 60% / 45% 55% 50% 50%; width:100px; height:118px; }
.blob-3 { border-radius: 40% 60% 55% 45% / 55% 45% 50% 50%; width:110px; height:125px; }
.blob-4 { border-radius: 60% 40% 45% 55% / 50% 50% 55% 45%; width:105px; height:115px; }
.blob-5 { border-radius: 45% 55% 50% 50% / 55% 45% 55% 45%; width:115px; height:130px; }
.blob-6 { border-radius: 50% 50% 40% 60% / 45% 55% 45% 55%; width:108px; height:120px; }
.blob-7 { border-radius: 55% 45% 55% 45% / 50% 50% 45% 55%; width:112px; height:122px; }
.blob-8 { border-radius: 42% 58% 50% 50% / 55% 45% 55% 45%; width:102px; height:117px; }

/* 궤도 전체 회전 애니메이션 (느리게) */
.orbit-stage {
  animation: orbitSpin 60s linear infinite;
}
/* 각 이미지는 반대 방향으로 회전해 항상 정면을 유지 */
.orbit-item {
  animation: counterSpin 60s linear infinite;
}
@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes counterSpin {
  from { transform:
    translate(-50%, -50%)
    rotate(calc(0deg - var(--angle, 0deg)))
    translateX(var(--r, 200px))
    rotate(var(--angle, 0deg)); }
  to { transform:
    translate(-50%, -50%)
    rotate(calc(360deg - var(--angle, 0deg)))
    translateX(var(--r, 200px))
    rotate(var(--angle, 0deg)); }
}

/* ===== 궤도 아이템 개별 배치 (JS 없이 정적으로) ===== */
/* CSS 애니메이션 approach: 각 아이템을 절대 위치로 직접 계산 */

/* 궤도 스테이지를 실제 궤도로 다시 구현 (더 안정적) */
.orbit-stage {
  animation: none; /* 커스텀 속성 방식으로 전환 */
  position: relative;
  width: 500px;
  height: 500px;
}

.orbit-item {
  animation: none;
  position: absolute;
  top: 50%;
  left: 50%;
}

/* 8개 아이템 각각의 위치 (반경 ~210px) */
.orbit-item:nth-child(2)  { transform: translate(-50%,-50%) translateY(-210px); }         /* 0° 위 */
.orbit-item:nth-child(3)  { transform: translate(-50%,-50%) translate(148px,-148px); }     /* 45° 우상 */
.orbit-item:nth-child(4)  { transform: translate(-50%,-50%) translateX(210px); }           /* 90° 우 */
.orbit-item:nth-child(5)  { transform: translate(-50%,-50%) translate(148px,148px); }      /* 135° 우하 */
.orbit-item:nth-child(6)  { transform: translate(-50%,-50%) translateY(210px); }           /* 180° 아래 */
.orbit-item:nth-child(7)  { transform: translate(-50%,-50%) translate(-148px,148px); }     /* 225° 좌하 */
.orbit-item:nth-child(8)  { transform: translate(-50%,-50%) translateX(-210px); }          /* 270° 좌 */
.orbit-item:nth-child(9)  { transform: translate(-50%,-50%) translate(-148px,-148px); }    /* 315° 좌상 */

/* 궤도 스테이지 천천히 회전 */
.orbit-stage {
  animation: slowSpin 80s linear infinite;
}
/* 이미지 자체는 반방향 회전으로 정면 유지 */
.orbit-item:nth-child(2) .blob-img,
.orbit-item:nth-child(3) .blob-img,
.orbit-item:nth-child(4) .blob-img,
.orbit-item:nth-child(5) .blob-img,
.orbit-item:nth-child(6) .blob-img,
.orbit-item:nth-child(7) .blob-img,
.orbit-item:nth-child(8) .blob-img,
.orbit-item:nth-child(9) .blob-img {
  animation: counterRotate 80s linear infinite;
}
@keyframes slowSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes counterRotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

/* =====================================================
   우측 카테고리 태그
===================================================== */
.side-tags {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  z-index: 20;
}
.tag-item {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}
.tag-dim {
  color: var(--dim);
  background: transparent;
}
.tag-dim:hover { color: var(--white); }
.tag-active {
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  color: var(--white);
}
.tag-active:hover {
  background: rgba(255,255,255,0.18);
}

/* =====================================================
   하단 대형 타이포그래피
===================================================== */
.hero-headline {
  position: absolute;
  left: 2rem;
  bottom: 3rem;
  z-index: 20;
}
.display-hero {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 4.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--white);
}
.text-dim { color: var(--dim); }

/* 하단 카피라이트 */
.footer-copy {
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  color: var(--dim);
  z-index: 20;
}

/* SCROLL DOWN */
.scroll-down-label {
  position: absolute;
  bottom: 1.2rem;
  right: 2rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dim);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.scroll-down-label::before {
  content: '';
  display: block;
  width: 1px;
  height: 20px;
  background: var(--dim);
  animation: lineGrow 1.8s ease-in-out infinite;
}
@keyframes lineGrow {
  0%, 100% { transform: scaleY(1); opacity: 0.5; }
  50%       { transform: scaleY(0.5); opacity: 1; }
}

/* =====================================================
   공통 다크 섹션
===================================================== */
.dark-section {
  background: var(--black);
  padding: 8rem 0;
  border-top: 1px solid var(--border);
}
.ds-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.ds-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 2rem;
}
.ds-headline {
  font-family: var(--font-head);
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--white);
  margin-bottom: 5rem;
}

/* =====================================================
   특징 행
===================================================== */
.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}
.feat-item {
  position: relative;
  padding-top: 2rem;
}
.feat-item::before {
  content: attr(data-num);
  position: absolute;
  top: 0;
  right: 0;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--dim);
}
.feat-line {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin-bottom: 1.8rem;
}
.feat-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.feat-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--dim);
}

/* =====================================================
   통계 섹션
===================================================== */
.stats-dark {
  background: var(--black);
  border-top: 1px solid var(--border);
  padding: 6rem 0;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-blk { }
.stat-big {
  font-family: var(--font-head);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--white);
}
.stat-suffix {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--dim);
}
.stat-lbl {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  margin-top: 0.8rem;
}

/* =====================================================
   앱 섹션
===================================================== */
.app-dark { }
.app-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.app-left .ds-headline { margin-bottom: 2rem; }
.app-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--dim);
  margin-bottom: 3rem;
}
.app-feat-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.app-feat-list li {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
}
.af-num {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--dim);
  flex-shrink: 0;
  padding-top: 0.15rem;
}
.af-text { font-size: 0.9rem; color: var(--white); line-height: 1.55; }

/* 폰 목업 */
.phone-dark {
  max-width: 280px;
  margin: 0 auto;
  background: #0a0a0a;
  border-radius: 2.5rem;
  padding: 0.8rem;
  border: 6px solid rgba(255,255,255,0.08);
  box-shadow: 0 40px 80px rgba(0,0,0,0.6);
}
.phone-dark img {
  border-radius: 2rem;
  width: 100%;
}

/* =====================================================
   후기 섹션
===================================================== */
.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}
.review-card {
  padding: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  transition: border-color 0.3s, background 0.3s;
}
.review-card:hover {
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.03);
}
.review-q {
  font-size: 1.05rem;
  color: var(--white);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 2rem;
}
.review-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.r-avatar {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(0.3);
}
.r-name { font-weight: 700; font-size: 0.88rem; color: var(--white); }
.r-role { font-size: 0.78rem; color: var(--dim); margin-top: 0.15rem; }

/* =====================================================
   CTA 섹션
===================================================== */
.cta-dark {
  background: var(--black);
  border-top: 1px solid var(--border);
  padding: 10rem 2rem;
  text-align: center;
}
.cta-headline {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.0;
  color: var(--white);
  margin-bottom: 2rem;
}
.cta-sub {
  font-size: 1.05rem;
  color: var(--dim);
  max-width: 480px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}
.btn-cta-lg {
  background: var(--white);
  color: var(--black);
  padding: 1rem 2.8rem;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  transition: transform 0.2s var(--spring), opacity 0.2s;
}
.btn-cta-lg:hover { transform: scale(1.04); opacity: 0.9; }

/* =====================================================
   푸터
===================================================== */
.dark-footer {
  background: var(--black);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.footer-tagline {
  font-size: 0.82rem;
  color: var(--dim);
}
.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--dim);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }
.footer-cr {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.2);
}

/* =====================================================
   페이드업 애니메이션
===================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* =====================================================
   반응형
===================================================== */
@media (max-width: 900px) {
  .orbit-stage { width: 380px; height: 380px; }
  .orbit-item:nth-child(2)  { transform: translate(-50%,-50%) translateY(-160px); }
  .orbit-item:nth-child(3)  { transform: translate(-50%,-50%) translate(113px,-113px); }
  .orbit-item:nth-child(4)  { transform: translate(-50%,-50%) translateX(160px); }
  .orbit-item:nth-child(5)  { transform: translate(-50%,-50%) translate(113px,113px); }
  .orbit-item:nth-child(6)  { transform: translate(-50%,-50%) translateY(160px); }
  .orbit-item:nth-child(7)  { transform: translate(-50%,-50%) translate(-113px,113px); }
  .orbit-item:nth-child(8)  { transform: translate(-50%,-50%) translateX(-160px); }
  .orbit-item:nth-child(9)  { transform: translate(-50%,-50%) translate(-113px,-113px); }

  .blob-img { width: 90px; height: 104px; }
  .blob-2,.blob-3,.blob-4,.blob-5,.blob-6,.blob-7,.blob-8 { width:80px; height:92px; }

  .feature-row { grid-template-columns: 1fr; gap: 2rem; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .app-two { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .side-tags { display: none; }
  .hero-headline { left: 1.2rem; bottom: 2rem; }
  .display-hero { font-size: 2rem; }
}

@media (max-width: 600px) {
  .center-pill .pill-btn:not(:first-child) { display: none; }
  .orbit-stage { width: 300px; height: 300px; }
  .orbit-item:nth-child(2)  { transform: translate(-50%,-50%) translateY(-120px); }
  .orbit-item:nth-child(3)  { transform: translate(-50%,-50%) translate(85px,-85px); }
  .orbit-item:nth-child(4)  { transform: translate(-50%,-50%) translateX(120px); }
  .orbit-item:nth-child(5)  { transform: translate(-50%,-50%) translate(85px,85px); }
  .orbit-item:nth-child(6)  { transform: translate(-50%,-50%) translateY(120px); }
  .orbit-item:nth-child(7)  { transform: translate(-50%,-50%) translate(-85px,85px); }
  .orbit-item:nth-child(8)  { transform: translate(-50%,-50%) translateX(-120px); }
  .orbit-item:nth-child(9)  { transform: translate(-50%,-50%) translate(-85px,-85px); }
  .blob-img { width: 68px; height: 80px; }
  .blob-2,.blob-3,.blob-4,.blob-5,.blob-6,.blob-7,.blob-8 { width:62px; height:72px; }
  .upload-box { width: 80px; height: 80px; }
  .ds-headline { font-size: 2.5rem; margin-bottom: 3rem; }
  .footer-row { flex-direction: column; align-items: flex-start; }
}