/* ============================================
   Nat Atnafu — Portfolio Site
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Jost:ital,wght@0,300;0,400;0,500;0,700;1,300&family=Nunito+Sans:ital,opsz,wght@0,6..12,300;0,6..12,400;0,6..12,500;0,6..12,600;1,6..12,300&display=swap');

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

:root {
  --black: #0a0a0a;
  --white: #f5f4f0;
  --gray: #888;
  --light-gray: #e0dfd9;
  --accent: #0a0a0a;
  --font-sans: 'Nunito Sans', sans-serif;
  --font-mono: 'Jost', sans-serif;
}

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

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.6;
  min-height: 100vh;
}

/* ---- NAV ---- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  background: var(--white);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

nav.scrolled {
  border-bottom-color: var(--light-gray);
}

.nav-logo {
  color: var(--black);
  text-decoration: none;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo-img {
  height: 3rem;
  width: 3rem;
  object-fit: contain;
}

.nav-logo-text {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-sub {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  opacity: 0.5;
  margin-top: 0.15rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  text-decoration: none;
  opacity: 0.55;
  transition: opacity 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  opacity: 1;
}

/* ---- MAIN LAYOUT ---- */
main {
  padding-top: 5rem; /* fallback before JS runs */
}

/* ---- WORK INDEX PAGE ---- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  background: var(--light-gray);
  border-top: 1px solid var(--light-gray);
}

.work-item {
  background: var(--white);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: background 0.2s;
}

.work-item:hover {
  background: var(--black);
  color: var(--white);
}

.work-item:hover .work-item-meta {
  color: rgba(255,255,255,0.5);
}

.work-item-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--light-gray);
}

.work-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease, opacity 0.3s;
}

.work-item:hover .work-item-thumb img {
  transform: scale(1.03);
}

.work-item-info {
  padding: 1.25rem 1.5rem 1.5rem;
}

.work-item-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.work-item-meta {
  font-size: 0.75rem;
  color: var(--gray);
  font-family: var(--font-mono);
  transition: color 0.2s;
}

/* ---- PROJECT PAGE ---- */
.project-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 2.5rem 6rem;
}

.project-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--light-gray);
}

.project-title {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.project-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray);
  letter-spacing: 0.06em;
}

.project-description {
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 640px;
  margin-bottom: 1.5rem;
}

.project-description p {
  margin-bottom: 1em;
}

.project-description p:last-child {
  margin-bottom: 0;
}

.project-description em {
  font-style: italic;
}

.project-note {
  font-size: 0.85rem;
  color: var(--gray);
  font-family: var(--font-mono);
  margin-top: 1rem;
}

.project-note a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- MEDIA SECTION ---- */
.media-section {
  margin-top: 2.5rem;
}

.media-section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1rem;
}

/* Image gallery */
.image-gallery {
  display: grid;
  gap: 1rem;
}

.image-gallery.cols-1 { grid-template-columns: 1fr; }
.image-gallery.cols-2 { grid-template-columns: repeat(2, 1fr); }
.image-gallery.cols-3 { grid-template-columns: repeat(3, 1fr); }

/* Fixed-height cells — full image shown with letterbox padding */
.image-gallery.fixed-height,
.image-gallery.fixed-height-tall,
.image-gallery.fixed-height-sq {
  align-items: stretch;
}

.image-gallery.fixed-height img,
.image-gallery.fixed-height-tall img,
.image-gallery.fixed-height-sq img {
  width: 100%;
  height: var(--cell-h, 260px);
  object-fit: contain;
  background: #f0efe9;
  display: block;
  cursor: zoom-in;
  transition: opacity 0.2s;
}

.image-gallery.fixed-height { --cell-h: 260px; }
.image-gallery.fixed-height-tall { --cell-h: 340px; }
.image-gallery.fixed-height-sq { --cell-h: 300px; }

/* Spanning helpers */
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }

/* Masonry-inspired: two cols with natural heights (portrait-heavy galleries) */
.image-gallery.natural img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
  transition: opacity 0.2s;
}

.image-gallery img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
  transition: opacity 0.2s;
}

.image-gallery img:hover,
.image-gallery.fixed-height img:hover,
.image-gallery.fixed-height-tall img:hover,
.image-gallery.fixed-height-sq img:hover {
  opacity: 0.9;
}

/* Single hero image */
.project-hero {
  width: 100%;
  margin-bottom: 2rem;
}
.project-hero img {
  width: 100%;
  height: auto;
  display: block;
}

/* Slideshow */
.slideshow {
  position: relative;
  background: #111;
  overflow: hidden;
}

.slideshow-track {
  display: flex;
  transition: transform 0.4s ease;
}

.slideshow-slide {
  min-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slideshow-slide img {
  width: 100%;
  height: auto;
  max-height: 600px;
  object-fit: contain;
  display: block;
}

.slideshow-controls {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.slideshow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background 0.2s;
}

.slideshow-dot.active {
  background: white;
}

.slideshow-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem 1rem;
  opacity: 0.6;
  transition: opacity 0.2s;
  font-family: var(--font-mono);
}

.slideshow-btn:hover { opacity: 1; }
.slideshow-btn.prev { left: 0; }
.slideshow-btn.next { right: 0; }

/* Video embed */
.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  margin-bottom: 1rem;
  background: #111;
}

.video-embed iframe,
.video-embed video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ---- ABOUT PAGE ---- */
.about-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2.5rem 6rem;
}

.about-heading {
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
}

.about-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 2.5rem;
  filter: grayscale(20%);
}

.about-intro {
  font-size: 1.3rem;
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.about-intro strong {
  font-weight: 500;
}

.about-body {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.about-body p {
  margin-bottom: 1rem;
}

.about-contact {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 2.5rem;
}

.about-contact a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--light-gray);
}

.about-section-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1.2rem;
}

.about-list {
  list-style: none;
}

.about-list li {
  font-size: 0.95rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light-gray);
  line-height: 1.5;
}

.about-list li:last-child {
  border-bottom: none;
}

.about-list .item-title {
  font-weight: 400;
}

.about-list .item-meta {
  font-size: 0.8rem;
  color: var(--gray);
  font-family: var(--font-mono);
}

.about-list a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- CENTERED PROJECT HEADER VARIANT ---- */
.project-header--centered {
  text-align: center;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.project-subtitle {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-top: 1.25rem;
  color: var(--black);
}

.project-subtitle a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.project-notice {
  font-size: 0.9rem;
  font-style: italic;
  font-weight: 500;
  margin-top: 1.25rem;
  line-height: 1.6;
}

.project-notice a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--light-gray);
  margin: 2.5rem 0;
}

/* ---- TWO-COLUMN PROJECT LAYOUT ---- */
.project-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin: 2.5rem 0;
}

.project-two-col-image img {
  width: 100%;
  height: auto;
  display: block;
}

.project-two-col-text {
  font-size: 0.95rem;
  line-height: 1.8;
  font-style: italic;
}

.project-two-col-text p {
  margin-bottom: 1rem;
}

.project-two-col-text p:last-child {
  margin-bottom: 0;
}

.project-two-col-text ol {
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.project-two-col-text ol li {
  margin-bottom: 0.5rem;
  font-style: italic;
}

@media (max-width: 640px) {
  .project-two-col {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* ---- LIGHTBOX ---- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  cursor: default;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  font-family: var(--font-mono);
  opacity: 0.6;
  transition: opacity 0.2s;
}

.lightbox-close:hover { opacity: 1; }

/* ---- PROJECT NAV ---- */
.project-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--light-gray);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.project-nav a {
  color: var(--black);
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.2s;
  letter-spacing: 0.06em;
}

.project-nav a:hover {
  opacity: 1;
}

/* ---- BACK LINK ---- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.back-link:hover { color: var(--black); }

/* ---- TAGS / COLLAB ---- */
.project-collab {
  font-size: 0.85rem;
  color: var(--gray);
  font-family: var(--font-mono);
  margin-top: 0.5rem;
}

/* ---- INTERACTIVE SPEC TABLE ---- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin: 1.5rem 0;
}

.spec-table th {
  text-align: left;
  padding: 0.4rem 1rem 0.4rem 0;
  color: var(--gray);
  font-weight: 400;
  border-bottom: 1px solid var(--light-gray);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.7rem;
}

.spec-table td {
  padding: 0.6rem 1rem 0.6rem 0;
  border-bottom: 1px solid var(--light-gray);
  line-height: 1.5;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
  nav {
    padding: 1.2rem 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }


  .work-grid {
    grid-template-columns: 1fr;
  }

  .project-page,
  .about-page {
    padding: 2rem 1.5rem 4rem;
  }

  .image-gallery.cols-2,
  .image-gallery.cols-3 {
    grid-template-columns: 1fr;
  }

  .project-title {
    font-size: 1.8rem;
  }
}

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  animation: fadeUp 0.6s ease forwards;
}

.fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-up-delay-3 { animation-delay: 0.3s; opacity: 0; }