:root {
  --navy: #0d1b2a;
  --navy-light: #1a2f47;
  --navy-mid: #162438;
  --cream: #f5f0e8;
  --warm-white: #faf8f4;
  --accent: #e8956d;
  --accent-light: #f2b49a;
  --teal: #4ecdc4;
  --gold: #d4a853;
  --text-muted: #7a9bb5;
  --border: rgba(78, 205, 196, 0.15);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--cream);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3rem;
  height: 64px;
  background: rgba(13, 27, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  color: var(--cream);
  text-decoration: none;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--teal); }

/* ── HERO / ABOUT ── */
#about {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 80px 6rem 4rem;
  position: relative;
  overflow: hidden;
}
#about::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(78,205,196,0.07) 0%, transparent 70%);
  pointer-events: none;
}
#about::after {
  content: '';
  position: absolute;
  bottom: 0; left: 40%; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}
.about-text { padding-right: 4rem; }
.about-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.5rem;
}
.about-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 5vw, 5rem);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  color: var(--warm-white);
}
.about-name em { font-style: italic; color: var(--accent); }
.about-bio {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 2.5rem;
}
.about-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: 3px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--accent); color: var(--navy); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

.about-photo { position: relative; display: flex; align-items: center; justify-content: center; }
.photo-frame {
  width: 360px; height: 420px;
  border-radius: 4px;
  background: var(--navy-mid);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.photo-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(78,205,196,0.05) 0%, transparent 60%),
    linear-gradient(to bottom, transparent 60%, rgba(13,27,42,0.8) 100%);
  z-index: 1;
  pointer-events: none;
}
.photo-placeholder-text {
  font-family: 'Playfair Display', serif;
  font-size: 5rem;
  color: rgba(78,205,196,0.3);
  z-index: 1;
}
.photo-corner {
  position: absolute;
  width: 24px; height: 24px;
  border-color: var(--teal);
  border-style: solid;
  opacity: 0.5;
  z-index: 2;
}
.photo-corner.tl { top: 16px; left: 16px; border-width: 2px 0 0 2px; }
.photo-corner.br { bottom: 16px; right: 16px; border-width: 0 2px 2px 0; }

/* ── SECTIONS ── */
.section { padding: 6rem 6rem 4rem; position: relative; }
.section-header { margin-bottom: 3rem; }
.section-number {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--teal);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--warm-white);
  margin-bottom: 0.75rem;
  line-height: 1.1;
}
.section-desc { font-size: 0.95rem; color: var(--text-muted); max-width: 540px; line-height: 1.7; }

/* ── CARDS ── */
.cards-scroll {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  -webkit-overflow-scrolling: touch;
}
.cards-scroll::-webkit-scrollbar { height: 4px; }
.cards-scroll::-webkit-scrollbar-track { background: transparent; }
.cards-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.card {
  flex: 0 0 280px;
  height: 340px;
  border-radius: 4px;
  background: var(--navy-mid);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  display: block;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.card:hover { transform: translateY(-6px); border-color: rgba(78,205,196,0.4); }

.card-bg { position: absolute; inset: 0; opacity: 0.6; }
.card-bg-dhis2 { background: radial-gradient(ellipse at 80% 20%, rgba(78,205,196,0.25) 0%, transparent 50%), radial-gradient(ellipse at 20% 80%, rgba(232,149,109,0.15) 0%, transparent 40%); }
.card-bg-r { background: radial-gradient(ellipse at 20% 20%, rgba(100,149,237,0.2) 0%, transparent 50%), radial-gradient(ellipse at 80% 80%, rgba(78,205,196,0.15) 0%, transparent 40%); }
.card-bg-epi { background: radial-gradient(ellipse at 50% 0%, rgba(212,168,83,0.2) 0%, transparent 50%), radial-gradient(ellipse at 0% 100%, rgba(232,149,109,0.15) 0%, transparent 40%); }
.card-bg-tidy { background: radial-gradient(ellipse at 100% 0%, rgba(232,149,109,0.3) 0%, transparent 50%), radial-gradient(ellipse at 0% 50%, rgba(78,205,196,0.1) 0%, transparent 40%); }
.card-bg-blog { background: radial-gradient(ellipse at 30% 30%, rgba(212,168,83,0.25) 0%, transparent 50%), radial-gradient(ellipse at 70% 70%, rgba(78,205,196,0.1) 0%, transparent 40%); }

.card-illustration {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 220px;
  background: linear-gradient(to top, rgba(22,36,56,0.98) 50%, transparent 100%);
  pointer-events: none;
}
.card-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 1.25rem 1.25rem 1.4rem; z-index: 2; }
.card-tag { font-family: 'DM Mono', monospace; font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--teal); margin-bottom: 0.4rem; }
.card-title { font-family: 'Playfair Display', serif; font-size: 1.1rem; color: var(--warm-white); line-height: 1.3; margin-bottom: 0.45rem; }
.card-desc { font-size: 0.78rem; line-height: 1.5; color: var(--text-muted); }
.card-arrow {
  position: absolute; top: 1.2rem; right: 1.2rem;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(78,205,196,0.1);
  border: 1px solid rgba(78,205,196,0.3);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s; z-index: 3;
}
.card:hover .card-arrow { opacity: 1; }
.card-arrow svg { width: 14px; height: 14px; stroke: var(--teal); }
.illu-network { width: 100%; height: 100%; }

/* ── DIVIDER ── */
.section-divider {
  margin: 0 6rem;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}

/* ── FOOTER ── */
footer {
  padding: 3rem 6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}
footer p { font-size: 0.78rem; color: var(--text-muted); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.about-eyebrow { animation: fadeUp 0.6s ease 0.1s both; }
.about-name    { animation: fadeUp 0.6s ease 0.2s both; }
.about-bio     { animation: fadeUp 0.6s ease 0.3s both; }
.about-links   { animation: fadeUp 0.6s ease 0.4s both; }
.about-photo   { animation: fadeUp 0.7s ease 0.3s both; }

/* ── CAROUSEL ── */
.carousel-wrapper { position: relative; }
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-60%);
  z-index: 10; width: 36px; height: 36px; border-radius: 50%;
  background: rgba(13,27,42,0.85); border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: border-color 0.2s, color 0.2s, opacity 0.2s;
  opacity: 0; pointer-events: none;
}
.carousel-wrapper:hover .carousel-btn { opacity: 1; pointer-events: auto; }
.carousel-btn:hover { border-color: var(--teal); color: var(--teal); }
.carousel-btn.hidden { opacity: 0 !important; pointer-events: none !important; }
.carousel-btn-prev { left: -18px; }
.carousel-btn-next { right: -18px; }
.carousel-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ── BLOG LAYOUT ── */
.blog-layout { display: grid; grid-template-columns: 220px 1fr; gap: 2rem; align-items: start; }
.blog-sidebar { border-right: 1px solid var(--border); padding-right: 1.5rem; }
.blog-sidebar-title { font-family: 'DM Mono', monospace; font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1rem; }
.blog-post-item { display: block; padding: 0.65rem 0; border-bottom: 1px solid rgba(78,205,196,0.07); text-decoration: none; transition: color 0.15s; }
.blog-post-item:hover .blog-post-title { color: var(--teal); }
.blog-post-item.active { border-left: 2px solid var(--teal); padding-left: 0.5rem; }
.blog-post-item.active .blog-post-title { color: var(--teal); }
.blog-post-date { font-family: 'DM Mono', monospace; font-size: 0.65rem; color: var(--text-muted); margin-bottom: 0.2rem; }
.blog-post-title { font-size: 0.82rem; color: var(--cream); line-height: 1.4; transition: color 0.15s; }

/* ── POST / PROJECT PAGES ── */
.post-article { padding: 100px 6rem 6rem; max-width: 860px; margin: 0 auto; }
.post-header { margin-bottom: 3rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.post-meta { margin-bottom: 1rem; display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.post-date { font-family: 'DM Mono', monospace; font-size: 0.72rem; color: var(--text-muted); }
.post-tag { font-family: 'DM Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal); background: rgba(78,205,196,0.08); padding: 0.2em 0.6em; border-radius: 2px; }
.post-title { font-family: 'Playfair Display', serif; font-size: clamp(1.8rem, 3vw, 2.8rem); color: var(--warm-white); line-height: 1.15; margin-bottom: 0.75rem; }
.post-desc { font-size: 1rem; color: var(--text-muted); line-height: 1.7; }
.project-img { width: 100%; border-radius: 4px; margin-bottom: 2rem; border: 1px solid var(--border); }

/* ── BLOG PAGE ── */
.blog-page .blog-reader { padding: 0; }
.blog-reader-empty { display: flex; align-items: center; justify-content: center; height: 300px; color: var(--text-muted); font-size: 0.85rem; border: 1px dashed var(--border); border-radius: 4px; }

/* ── MD BODY ── */
.md-body { color: var(--cream); font-size: 0.92rem; line-height: 1.8; }
.md-body h1 { font-family: 'Playfair Display', serif; font-size: 1.8rem; color: var(--warm-white); margin-bottom: 0.4rem; line-height: 1.2; }
.md-body h2 { font-family: 'Playfair Display', serif; font-size: 1.2rem; color: var(--warm-white); margin: 2rem 0 0.6rem; padding-bottom: 0.3rem; border-bottom: 1px solid var(--border); }
.md-body h3 { font-size: 0.95rem; font-weight: 500; color: var(--cream); margin: 1.4rem 0 0.4rem; }
.md-body p { margin-bottom: 1rem; color: rgba(245,240,232,0.8); }
.md-body a { color: var(--teal); text-decoration: none; }
.md-body a:hover { text-decoration: underline; }
.md-body ul, .md-body ol { margin: 0.5rem 0 1rem 1.5rem; color: rgba(245,240,232,0.8); }
.md-body li { margin-bottom: 0.3rem; }
.md-body hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }
.md-body code { font-family: 'DM Mono', monospace; font-size: 0.82em; background: rgba(78,205,196,0.08); padding: 0.1em 0.4em; border-radius: 3px; color: var(--teal); }
.md-body pre { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 4px; padding: 1rem; overflow-x: auto; margin-bottom: 1rem; }
.md-body pre code { background: none; padding: 0; color: var(--cream); }
.md-body blockquote { border-left: 3px solid var(--teal); padding-left: 1rem; color: var(--text-muted); font-style: italic; margin: 1rem 0; }
.md-body table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; font-size: 0.85rem; }
.md-body th { font-family: 'DM Mono', monospace; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--teal); border-bottom: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; }
.md-body td { padding: 0.5rem 0.75rem; border-bottom: 1px solid rgba(78,205,196,0.06); color: rgba(245,240,232,0.8); vertical-align: top; }
.md-body tr:hover td { background: rgba(78,205,196,0.03); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 0 1.5rem; }
  .nav-links { gap: 1.5rem; }
  #about { grid-template-columns: 1fr; padding: 100px 2rem 4rem; }
  .about-text { padding-right: 0; }
  .about-photo { display: none; }
  .section { padding: 4rem 2rem 3rem; }
  .section-divider { margin: 0 2rem; }
  footer { padding: 2rem; flex-direction: column; gap: 1rem; text-align: center; }
  .card { flex: 0 0 240px; }
  .blog-layout { grid-template-columns: 1fr; }
  .blog-sidebar { border-right: none; border-bottom: 1px solid var(--border); padding-right: 0; padding-bottom: 1rem; margin-bottom: 1rem; }
  .carousel-btn { display: none; }
  .post-article { padding: 100px 2rem 4rem; }
}