/* ========== Reset ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.logo img {
  height: 180px;   /* 원하는 크기로 변경 */
  width: auto;     /* 자동 비율 유지 */
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0a0a0a;
  color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  z-index: 100;

  /* 처음에는 완전 투명 (배경 · blur 없음) */
  background: transparent;
}

/* blur + 어두운 배경 전용 레이어 */
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);

  /* 처음에는 꺼져 있음 */
  opacity: 0;
  transition: opacity .35s ease;
}

/* 스크롤 후 .header--visible 붙었을 때만 바가 보이게 */
.header.header--visible::before {
  opacity: 1;
}

/* 안쪽 내용(로고, 햄버거)은 항상 그대로 보이게 */
.h-inner {
  position: relative;
  z-index: 1;  /* ::before 위로 올라오게 */
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.bolt::before {
  content: '⚡';
  font-size: 24px;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  height: 30px;
  justify-content: center;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  transition: 0.3s;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-dim {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 100%);
  z-index: 2;
}

.hero-center {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 24px;
}

.hero-center h1 {
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 900;
  letter-spacing: -2px;
  margin-bottom: 16px;
}

.hero-center p {
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 300;
  opacity: 0.9;
}

.hero-cta {
  position: absolute;
  right: 40px;
  bottom: 80px;          /* 첫 화면 오른쪽 하단 쪽으로 */
  z-index: 20;
  background: #2563eb;
  color: #fff;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s;
}

.hero-cta:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
}

.dl {
  font-size: 18px;
}

/* ========== Sections ========== */
.section {
  padding: 100px 0;
  position: relative;
}

/* ========== Spotlight ========== */
.spotlight {
  background: #0a0a0a;
}

.spot-head {
  text-align: center;
  margin-bottom: 60px;
}

.spot-head h2 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -1px;
}

.spot-card {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* 화살표 기본 상태: 숨김 */
.spot-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
  
  /* 기본 상태에서 숨김 */
  opacity: 0;
  pointer-events: none;
}

/* 카드에 마우스 호버 시 화살표 표시 */
.spot-card:hover .spot-arrow {
  opacity: 1;
  pointer-events: auto;
}

.spot-arrow.left {
  left: 20px;
}

.spot-arrow.right {
  right: 20px;
}

/* 화살표 자체에 호버 시 스타일 */
.spot-arrow:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-50%) scale(1.1);
}

.spot-slide {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 60px 80px;
}

.spot-img {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.spot-copy h3 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.spot-copy p {
  font-size: 16px;
  line-height: 1.7;
  opacity: 0.85;
}

/* ========== Services ========== */
.services {
  background: #0f0f0f;
  position: relative;
}

.sec-title {
  text-align: center;
  margin-bottom: 80px;
}

.sec-title h2 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -1px;
}

.svc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

.svc-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s;
  aspect-ratio: 1;
}

.svc-card.big {
  aspect-ratio: 16/9;
}

.svc-card:hover {
  transform: translateY(-8px);
}

.svc-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s;
}

.svc-card:hover .svc-bg {
  transform: scale(1.05);
}

.bg1 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg2 {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.bg3 {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.bg4 {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.svc-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.7) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  z-index: 2;
}

.svc-overlay h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.svc-overlay p {
  font-size: 15px;
  line-height: 1.6;
  opacity: 0.9;
}

.svc-next {
  position: absolute;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  z-index: 3;
  transition: all 0.3s;
}

.svc-card:hover .svc-next {
  background: rgba(255, 255, 255, 0.3);
  transform: translateX(4px);
}

.ipad-float {
  position: absolute;
  right: 5%;
  bottom: -100px;
  width: 300px;
  height: 400px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  opacity: 0.3;
  pointer-events: none;
}

/* ========== Download ========== */
.download {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 80px 0;
}

.dl-inner {
  text-align: center;
}

.dl-inner h2 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  margin-bottom: 12px;
}

.dl-inner p {
  font-size: 20px;
  opacity: 0.9;
  margin-bottom: 40px;
}

.stores {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.store {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 16px 32px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s;
}

.store:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.store .ic {
  font-size: 28px;
}

.store small {
  display: block;
  font-size: 12px;
  opacity: 0.8;
}

.store strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
}

/* ========== Footer ========== */
.footer {
  background: #000;
  padding: 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.f-inner {
  text-align: center;
}

.foot-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
}

.muted {
  opacity: 0.5;
  font-size: 14px;
}

/* ========== Mobile Menu ========== */
.m-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: none;
}

.m-menu[aria-hidden="false"] {
  display: block;
}

.m-sheet {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 300px;
  background: #0a0a0a;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

.m-close {
  align-self: flex-end;
  color: #fff;
  font-size: 16px;
  padding: 8px 16px;
}

.m-sheet a {
  font-size: 20px;
  font-weight: 600;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .spot-slide {
    flex-direction: column;
    text-align: center;
    padding: 40px 32px;
  }

  .spot-img {
    width: 100px;
    height: 100px;
  }

  .spot-copy h3 {
    font-size: 24px;
  }

  .spot-arrow {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }

  .spot-arrow.left {
    left: 10px;
  }

  .spot-arrow.right {
    right: 10px;
  }

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

  .hero-cta {
    position: relative;
    top: auto;
    right: auto;
    margin-top: 32px;
  }
  /* === Top header appears only after scrolling to spotlight === */
.header{
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
}
.header.header--visible{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
}