/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #f4f2ef;
  --bg-dark:   #1a1917;
  --text:      #1a1917;
  --muted:     #7a7672;
  --white:     #f4f2ef;
  --border:    rgba(26,25,23,0.12);
  --font:      'DM Sans', sans-serif;
  --mono:      'DM Mono', monospace;
  --ease:      cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-out:  cubic-bezier(0.0, 0.0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  mix-blend-mode: difference;
}

.nav-logo img {
  height: 56px;
  width: auto;
  filter: invert(1);
}

.nav-toggle {
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
}

.nav-toggle-lines {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-lines span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--white);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

/* ── OVERLAY MENU ── */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 2.5rem 3rem;
  transform: translateY(-100%);
  transition: transform 0.6s var(--ease-out);
  pointer-events: none;
}

.menu-overlay.open {
  transform: translateY(0);
  pointer-events: all;
}

.menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-logo img {
  height: 56px;
  width: auto;
}

.menu-close {
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.menu-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.menu-links a {
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 300;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.05;
  transition: color 0.2s var(--ease);
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.menu-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 1px;
  background: var(--white);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.menu-links a:hover::after { transform: scaleX(1); }
.menu-links a:hover { color: var(--muted); }

.menu-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-top: 1px solid rgba(244,242,239,0.12);
  padding-top: 1.5rem;
}

.menu-footer-contact {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.menu-footer-contact p { line-height: 2; }
.menu-footer-contact--right { text-align: right; }

/* ── HERO ── */
.hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--bg-dark);
}

/* Poster image shown while video loads */
.hero-poster {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-image: url('../images/cm_bp_bts-66.webp');
  opacity: 0.5;
  transition: opacity 0.8s var(--ease);
  z-index: 1;
}

.hero-poster.hidden { opacity: 0; }

.hero-video-wrap {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}

.hero-video-wrap.ready { opacity: 1; }

.hero-video-wrap iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 177.78svh;
  height: 100svh;
  min-width: 100%;
  min-height: 56.25vw;
  transform: translate(-50%, -50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: linear-gradient(
    to bottom,
    rgba(26,25,23,0.2) 0%,
    rgba(26,25,23,0.0) 40%,
    rgba(26,25,23,0.55) 100%
  );
}

.hero-content {
  position: absolute;
  bottom: 3.5rem;
  left: 2.5rem;
  right: 2.5rem;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  color: var(--white);
}

.hero-title {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.hero-meta {
  text-align: right;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(244,242,239,0.55);
  line-height: 1.8;
}

.scroll-hint {
  position: absolute;
  bottom: 3.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scroll-hint-line {
  width: 1px;
  height: 48px;
  background: rgba(244,242,239,0.3);
  animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── SECTION BASE ── */
.section { padding: 7rem 2.5rem; }

.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── VIDEO SECTION ── */
.video-section { background: var(--bg); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.video-card {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-dark);
}

.video-card:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 21/9;
}

.video-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease), opacity 0.4s var(--ease);
  opacity: 0.85;
}

.video-card:hover .video-thumb {
  transform: scale(1.04);
  opacity: 1;
}

.video-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,25,23,0.25);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: background 0.3s var(--ease);
}

.video-card:hover .video-card-overlay { background: rgba(26,25,23,0.1); }

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border: 1px solid rgba(244,242,239,0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.video-card:hover .video-play-btn {
  background: rgba(244,242,239,0.15);
  border-color: rgba(244,242,239,0.9);
}

.video-play-btn svg { margin-left: 3px; }

.video-card-title {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(244,242,239,0.7);
}

/* ── PHOTO SECTION ── */
.photo-section { background: var(--bg); }

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.photo-item {
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.photo-item:nth-child(1) { grid-column: 1 / 3; aspect-ratio: 4/3; }
.photo-item:nth-child(2) { aspect-ratio: 3/4; }
.photo-item:nth-child(3),
.photo-item:nth-child(4) { aspect-ratio: 4/3; }
.photo-item:nth-child(5) { grid-column: 2 / 4; aspect-ratio: 16/7; }

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.photo-item:hover img { transform: scale(1.04); }

/* ── ABOUT SECTION ── */
.about-section {
  background: var(--bg-dark);
  color: var(--white);
}

.about-section .section-label { color: rgba(244,242,239,0.35); }
.about-section .section-label::after { background: rgba(244,242,239,0.1); }

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-text {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--white);
}

.about-text em {
  font-style: normal;
  color: var(--muted);
}

.about-details { padding-top: 0.5rem; }

.about-year {
  font-family: var(--mono);
  font-size: 5rem;
  font-weight: 300;
  color: rgba(244,242,239,0.08);
  line-height: 1;
  margin-bottom: 2rem;
  letter-spacing: -0.03em;
}

.about-bio {
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(244,242,239,0.55);
  max-width: 38ch;
}

/* ── CONTACT SECTION ── */
.contact-section { background: var(--bg); }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
  border-top: 1px solid var(--border);
  padding-top: 4rem;
}

.contact-heading {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact-person {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.contact-role {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.contact-name {
  font-size: 1.1rem;
  font-weight: 400;
}

.contact-link {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

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

.contact-email-block { margin-top: 1rem; }

.contact-email-block a {
  font-size: clamp(1rem, 2vw, 1.25rem);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
  transition: border-color 0.2s var(--ease);
}

.contact-email-block a:hover { border-color: var(--text); }

/* ── FOOTER ── */
footer {
  background: var(--bg);
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer p {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(26,25,23,0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(244,242,239,0.5);
  cursor: pointer;
  transition: color 0.2s;
}

.lightbox-close:hover { color: var(--white); }

.lightbox-video {
  width: min(90vw, 160vh);
  aspect-ratio: 16/9;
}

.lightbox-video iframe {
  width: 100%;
  height: 100%;
}

.lightbox-img {
  max-width: 92vw;
  max-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-nav {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
}

.lightbox-nav button {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: rgba(244,242,239,0.4);
  text-transform: uppercase;
  transition: color 0.2s;
  padding: 0.5rem;
}

.lightbox-nav button:hover { color: var(--white); }

/* ── REVEAL ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav { padding: 1.25rem; }
  .section { padding: 5rem 1.25rem; }
  .menu-overlay { padding: 1.5rem 1.25rem 2.5rem; }

  .video-grid { grid-template-columns: 1fr; }
  .video-card:first-child { aspect-ratio: 16/9; grid-column: 1; }

  .photo-grid { grid-template-columns: 1fr 1fr; }
  .photo-item:nth-child(1) { grid-column: 1 / -1; aspect-ratio: 3/2; }
  .photo-item:nth-child(2) { aspect-ratio: 4/3; }
  .photo-item:nth-child(3) { aspect-ratio: 4/3; }
  .photo-item:nth-child(4) { grid-column: 1 / -1; aspect-ratio: 16/7; }
  .photo-item:nth-child(5) { display: none; }

  .about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }

  .hero-content { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .hero-meta { text-align: left; }

  .lightbox-video { width: 96vw; }
}