:root {
  --gap-bg: #E7E5E1;
  --blue: #7D53FF;
  --neon: #ffffff;
  --ink: #1A1A1A;
  --muted: #7A7A75;

  --display: "Pretendard", "Helvetica Neue", Arial, sans-serif;
  --body: "Pretendard", "Helvetica Neue", Arial, sans-serif;

  --gutter: 40px;
}

@media (max-width: 640px) {
  :root { --gutter: 20px; }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--gap-bg);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

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

/* ===================================================
   HEADER
=================================================== */
.site-header {
  padding: 32px var(--gutter) 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.logo-block .logo {
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.logo-block .logo b { font-weight: 800; }

.logo-block .role {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blue);
  opacity: 0.55;
  margin-top: 4px;
}

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--blue);
}

.site-nav a { opacity: 0.65; transition: opacity 0.2s ease; }
.site-nav a:hover, .site-nav a.active { opacity: 1; }

.nav-cta {
  border: 1px solid rgba(245,245,243,0.35);
  border-radius: 999px;
  padding: 8px 18px;
  opacity: 1 !important;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-cta:hover {
  background: var(--ink);
  color: var(--gap-bg);
}

.inquiry {
  padding: 40px var(--gutter) 20px;
  font-size: 11px;
  color: var(--blue);
}

.inquiry b { font-weight: 700; }

/* ===================================================
   HERO (video background)
=================================================== */
.hero {
  position: relative;
  width: 100%;
  min-height: 82vh;
  overflow: hidden;
  background: #05060a;
  display: flex;
  flex-direction: column;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,6,10,0.55) 0%, rgba(5,6,10,0.25) 40%, rgba(5,6,10,0.65) 100%);
}

.hero-header {
  position: relative;
  z-index: 2;
}

.hero-header .logo, .hero-header .role, .hero-header .site-nav a {
  color: #FFFFFF;
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px var(--gutter);
}

.hero-title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(48px, 9vw, 120px);
  color: #FFFFFF;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  line-height: 0.95;
}

.hero-welcome {
  font-size: clamp(13px, 1.4vw, 16px);
  color: rgba(255,255,255,0.85);
  max-width: 46ch;
  line-height: 1.6;
}

.hero-scroll {
  position: relative;
  z-index: 2;
  color: #FFFFFF;
  padding-bottom: 34px;
}

@media (max-width: 700px) {
  .hero { min-height: 70vh; }
}

.scroll-hint {
  text-align: center;
  padding: 30px 0 26px;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--blue);
}

.scroll-hint .arrow {
  margin-top: 4px;
  font-size: 12px;
  animation: bob 1.6s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

#project-list {
  padding-top: 60px;
}
.project-panel {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 21 / 4;
  overflow: hidden;
  margin-bottom: 26px;
}

@media (max-width: 800px) {
  .project-panel { aspect-ratio: 21 / 15; margin-bottom: 18px; }
}

.panel-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}

video.panel-fill {
  object-fit: cover;
}

@media (max-width: 800px) {
  .panel-fill { background-attachment: scroll; }
}

.panel-fill.p1 { background-image: linear-gradient(120deg, #6E8FD9 0%, #A9C6EA 30%, #E9F1FA 45%, #0E1A24 70%, #2B3C4C 100%); }
.panel-fill.p2 { background-image: linear-gradient(115deg, #0B0D0A 0%, #23261F 35%, #3A3D30 55%, #0B0D0A 100%); }
.panel-fill.p3 { background-image: linear-gradient(120deg, #1C1F26 0%, #7C8592 35%, #D9DEE4 60%, #A9AFB8 100%); }
.panel-fill.p4 { background-image: linear-gradient(120deg, #05060A 0%, #14161C 40%, #262A33 70%, #05060A 100%); }

.panel-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}

.panel-title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 34px);
  color: var(--neon);
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  text-shadow: 0 1px 12px rgba(0,0,0,0.25);
}

.panel-tagline {
  font-size: clamp(9px, 1vw, 12px);
  font-weight: 500;
  color: var(--neon);
  max-width: 46ch;
  text-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

.project-panel:hover .panel-fill {
  filter: brightness(1.06);
}

/* ===================================================
   FOOTER
=================================================== */
.site-footer {
  padding: 40px var(--gutter) 60px;
  text-align: center;
  font-size: 11px;
  color: var(--blue);
  opacity: 0.6;
}

/* ===================================================
   PROJECT DETAIL PAGE
=================================================== */
.detail-hero {
  padding: 60px var(--gutter) 30px;
  max-width: 900px;
  margin: 0 auto;
}

.back-link {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--blue);
  display: inline-block;
  margin-bottom: 30px;
  opacity: 0.7;
}
.back-link:hover { opacity: 1; }

.detail-title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(28px, 5vw, 48px);
  color: var(--ink);
  margin: 0 0 12px;
}

.detail-tagline {
  font-size: 14px;
  color: #555;
  max-width: 60ch;
  line-height: 1.6;
}

.detail-images {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding-bottom: 100px;
}

.detail-images .project-panel { margin-bottom: 0; }
.detail-images .panel-fill { background-attachment: scroll; }
.detail-img-frame {
  line-height: 0;
  max-width: 80%;
  margin: 0 auto;
  padding: 30px;
  background: var(--gap-bg);
  border-radius: 4px;
  opacity: 0;
  transform: translateY(70px);
  transition: opacity 1.4s cubic-bezier(0.16,1,0.3,1), transform 1.4s cubic-bezier(0.16,1,0.3,1);
}
.detail-img-frame.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}
.detail-img-frame img,
.detail-img-frame video {
  border-radius: 2px;
  width: 100%;
}

.clip-holder {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
}
.clip-holder iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 2px;
}

@media (max-width: 700px) {
  .detail-images { gap: 12px; padding-bottom: 40px; }
  .detail-img-frame {
    max-width: 100%;
    padding: 0;
    transform: translateY(20px);
  }
  .detail-img-frame img,
  .detail-img-frame video {
    width: 100%;
    height: auto;
  }
  .detail-hero { padding: 40px var(--gutter) 20px; }
}

/* 상세페이지 다크 테마 */
.detail-page { background: #0A0A0A; }
.detail-page .detail-title { color: #FFFFFF; }
.detail-page .detail-tagline { color: #A6A6A0; }
.detail-page .detail-img-frame { background: #0A0A0A; }
.detail-page .site-footer { color: #7A7A75; }