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

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --text: #e8e8e8;
  --text-muted: #888;
  --accent: #d4a574;
  --accent-hover: #e0bc94;
  --radius: 6px;
  --nav-height: 60px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 4vw, 3rem);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-links { display: flex; gap: 2rem; }

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); }

.nav-linkedin {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-linkedin:hover { color: var(--text); }

/* ── Hero ── */
.hero {
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--nav-height) 1.5rem 4rem;
}

.hero-content { max-width: 600px; }

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.hero-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s;
}

.btn:hover {
  border-color: var(--accent);
  background: rgba(212, 165, 116, 0.08);
}

/* ── Section Titles ── */
.section-title {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
  text-align: center;
}

/* ── Portfolio ── */
.portfolio {
  padding: 6rem clamp(1rem, 4vw, 3rem);
  max-width: 1400px;
  margin: 0 auto;
}

/* CSS-only masonry using columns */
.masonry {
  columns: 3;
  column-gap: 1rem;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1rem;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.masonry-item img {
  width: 100%;
  display: block;
  transition: transform 0.4s ease, filter 0.4s ease;
}

.masonry-item:hover img {
  transform: scale(1.03);
  filter: brightness(0.85);
}

.masonry-item .photo-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1rem 1rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: var(--text);
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity 0.3s;
}

.masonry-item:hover .photo-caption { opacity: 1; }

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-size: 2rem;
  padding: 0.5rem;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

.lightbox-close { top: 1.5rem; right: 1.5rem; font-size: 2.5rem; }
.lightbox-prev { left: 1.5rem; font-size: 3rem; }
.lightbox-next { right: 1.5rem; font-size: 3rem; }

.lightbox-caption {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  max-width: 600px;
}

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .masonry { columns: 2; }
}

@media (max-width: 550px) {
  .masonry { columns: 1; }
  .nav-links { gap: 1.25rem; }
  .nav-links a { font-size: 0.8rem; }
}