*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0a0a;
  --dark: #1a1a1a;
  --card: #f4f4f4;
  --border: #e2e2e2;
  --purple: #593d8f;
  --purple-light: #7b5cb8;
  --purple-dark: #3d2760;
  --white: #ffffff;
  --gray: #666666;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--black);
  letter-spacing: -0.03em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── NOTES CANVAS ── */
#notes-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── CURSOR GLOW ── */
.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(89,61,143,0.10) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 0;
  transition: opacity 0.3s;
}

/* ── NAV ── */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  padding: 20px 60px;
  background: rgba(10,10,10,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
#nav.scrolled { border-bottom-color: #2a2a2a; }

.nav-logo {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.04em;
  margin-right: auto;
}
.nav-logo span { color: var(--purple); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 4px;
}
.nav-links a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 6px 10px;
  transition: color 0.2s;
}
.nav-links a:hover { color: #ffffff; }
.nav-links a.active { color: #ffffff; }

/* ── PAGE HEADER ── */
.page-header {
  padding: 160px 60px 80px;
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--border);
}
.page-header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.page-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 16px;
}
.page-header h1 {
  font-size: clamp(48px, 5vw, 80px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.page-header h1 span { color: var(--purple); }
.page-header-meta {
  flex-shrink: 0;
  text-align: right;
}
.page-header-meta p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
  max-width: 320px;
}
.project-count {
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--border);
  line-height: 1;
  margin-bottom: 8px;
}

/* ── FILTER BAR ── */
.filter-bar {
  padding: 24px 60px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}
.filter-btn {
  padding: 8px 18px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--gray);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover { border-color: var(--black); color: var(--black); }
.filter-btn.active { background: var(--purple); border-color: var(--purple); color: var(--white); }

/* ── GRID ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 2px;
  position: relative;
  z-index: 1;
}

/* ── PROJECT CARD ── */
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.25s;
}
.project-card:hover { border-color: var(--purple); }
.project-card:hover .card-img img { filter: grayscale(10%) brightness(0.85); transform: scale(1.04); }
.project-card:hover .card-open-icon { opacity: 1; transform: translate(-50%,-50%) scale(1); }

.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  background: #161616;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(50%) brightness(0.65);
  transition: filter 0.4s, transform 0.4s;
}
.card-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #ede8f5 0%, #ddd3f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-placeholder svg {
  width: 40px;
  height: 40px;
  color: rgba(89,61,143,0.35);
}
.card-open-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%) scale(0.8);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(89,61,143,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.card-open-icon svg { width: 20px; height: 20px; color: #fff; }

.card-body {
  padding: 24px 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  background: var(--purple-dark);
}
.card-role {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
}
.card-name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #ffffff;
}
.card-years {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-top: 4px;
}

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: stretch;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.lightbox.open {
  opacity: 1;
  pointer-events: all;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
}
.lightbox-panel {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  transform: translateY(24px);
  transition: transform 0.35s cubic-bezier(0.22,1,0.36,1);
}
.lightbox.open .lightbox-panel { transform: translateY(0); }

.lightbox-img-side {
  position: relative;
  background: #0d0d0d;
  overflow: hidden;
}
.lightbox-img-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) brightness(0.75);
}
.lightbox-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1428 0%, #2a1f42 60%, #1a1428 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-img-placeholder svg {
  width: 72px;
  height: 72px;
  color: rgba(89,61,143,0.25);
}
.lightbox-img-counter {
  position: absolute;
  bottom: 24px;
  left: 24px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.08em;
}

.lightbox-detail-side {
  background: var(--dark);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 56px 60px;
  overflow-y: auto;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.lightbox-close:hover { border-color: var(--gray); background: rgba(255,255,255,0.05); }
.lightbox-close svg { width: 18px; height: 18px; color: var(--white); }

.lb-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--purple-light);
  margin-bottom: 16px;
}
.lb-name {
  font-size: clamp(36px, 3.5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
  color: #ffffff;
}
.lb-years {
  font-size: 15px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 40px;
}
.lb-divider {
  width: 40px;
  height: 2px;
  background: var(--purple);
  margin-bottom: 32px;
}
.lb-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 10px;
}
.lb-description {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  margin-bottom: 36px;
}
.lb-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}
.lb-meta-item {}
.lb-meta-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}
.lb-meta-value {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}
.lb-nav {
  margin-top: auto;
  padding-top: 40px;
  border-top: 1px solid #2a2a2a;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.lb-nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  background: none;
  border: none;
  font-family: 'Inter', sans-serif;
  letter-spacing: -0.02em;
  transition: color 0.2s;
  padding: 0;
}
.lb-nav-btn:hover { color: #ffffff; }
.lb-nav-btn svg { width: 18px; height: 18px; }
.lb-nav-btn:disabled { opacity: 0.25; cursor: default; }
.lb-nav-dots { display: flex; gap: 6px; }
.lb-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #333333;
  transition: background 0.2s, transform 0.2s;
  cursor: pointer;
}
.lb-dot.active { background: var(--purple); transform: scale(1.4); }

/* ── FOOTER ── */
footer {
  padding: 32px 60px;
  background: #0a0a0a;
  border-top: 1px solid #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}
.footer-logo {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.03em;
}
.footer-logo span { color: var(--purple); }
.footer-copy { font-size: 12px; color: #888888; }
.footer-links { display: flex; gap: 28px; }
.footer-links a {
  font-size: 12px;
  color: #888888;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: #ffffff; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .lightbox-panel { grid-template-columns: 1fr; }
  .lightbox-img-side { height: 45vh; }
  .lightbox-detail-side { padding: 36px 32px; }
}
@media (max-width: 768px) {
  #nav { padding: 16px 24px; }
  .page-header { padding: 120px 24px 48px; }
  .page-header-inner { flex-direction: column; align-items: flex-start; }
  .page-header-meta { text-align: left; }
  .filter-bar { padding: 20px 24px; flex-wrap: wrap; }
  .projects-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 16px; padding: 28px 24px; text-align: center; }
  .footer-links { justify-content: center; }
}