/* ============================================
   Nuno Quental — Portfolio
   Modern, clean, creative design
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,500;0,700;1,500&display=swap');

:root {
  --ink: #1a1a2e;
  --ink-light: #4a4a6a;
  --ink-muted: #8888a4;
  --bg: #fefefe;
  --bg-warm: #f8f7f4;
  --bg-card: #ffffff;
  --accent: #2d6a4f;
  --accent-light: #40916c;
  --accent-glow: #52b78830;
  --accent-2: #1b4965;
  --accent-2-light: #5fa8d3;
  --border: #e8e6e1;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ---- Navigation ---- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(254,254,254,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0.25rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

nav a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
  position: relative;
}

nav a:hover, nav a.active { color: var(--accent); }

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-links { display: flex; gap: 1.5rem; margin-left: auto; }

/* ---- Main container ---- */
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Hero Section ---- */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem 0 1.5rem;
}

.hero-text h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-text h1 span {
  display: block;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.2rem;
  color: var(--ink-light);
  font-weight: 300;
  line-height: 1.8;
  max-width: 560px;
}

.hero-quote {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.6rem;
  font-style: italic;
  color: var(--ink-light);
  border-left: 3px solid var(--accent);
  padding-left: 1.2rem;
  margin: 1.2rem 0;
  line-height: 1.5;
}

.hero-sub {
  font-size: 1rem;
  color: var(--ink-muted);
  margin-bottom: 1.8rem;
}

.cta {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  box-shadow: 0 3px 12px rgba(45,106,79,0.25);
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45,106,79,0.35);
}

.cta-secondary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent-2-light));
  box-shadow: 0 3px 12px rgba(27,73,101,0.25);
}

.cta-secondary:hover {
  box-shadow: 0 6px 20px rgba(27,73,101,0.35);
}

.cta-small {
  padding: 0.55rem 1.3rem;
  font-size: 0.88rem;
  display: block;
  width: fit-content;
  margin-bottom: 0.5rem;
}

.hero-ctas {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* ---- Blog preview ---- */
.blog-preview {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.blog-preview h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--ink);
  margin-bottom: 1.2rem;
}

.blog-heading {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 3rem;
  margin-bottom: 0.4rem;
}

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

.blog-list li {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border);
}

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

.blog-list time {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  min-width: 5.5rem;
}

.blog-list a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 400;
  line-height: 1.4;
  transition: color var(--transition);
}

.blog-list a:hover {
  color: var(--accent);
}

/* ---- Pullquotes ---- */
.pullquote {
  padding: 1.2rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.pullquote blockquote {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-style: italic;
  color: var(--ink);
  line-height: 1.7;
}

.pullquote cite {
  display: block;
  margin-top: 0.8rem;
  font-family: 'Inter', sans-serif;
  font-style: normal;
  font-size: 0.78rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

.pullquote-alt blockquote {
  color: var(--accent);
}

/* ---- Projecto em destaque ---- */
.projeto-destaque {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
}

.projeto-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  margin-bottom: 0.8rem;
}

.projeto-texto h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--ink);
  margin-bottom: 0.8rem;
}

.projeto-texto p {
  color: var(--ink-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.projeto-imagens {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.projeto-imagens figure {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.projeto-imagens img {
  display: block;
  width: 100%;
  height: auto;
}

.projeto-imagens figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.3rem 0;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0,0,0,0.5);
  letter-spacing: 0.08em;
}

.portrait {
  width: 240px;
  height: 300px;
  border-radius: var(--radius);
  object-fit: cover;
  object-position: center 15%;
  border: 3px solid var(--bg-warm);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border);
}

/* ---- Bio ---- */
.bio {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
}

.bio h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--ink);
  margin-bottom: 0.8rem;
  letter-spacing: -0.02em;
}

.bio p {
  color: var(--ink-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* ---- Stats strip ---- */
.stats {
  display: flex;
  gap: 3rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 1rem 0 3rem;
}

.stat { text-align: center; }

.stat-number {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.4rem;
  display: block;
}

/* ---- Link cards ---- */
.links { padding: 1.5rem 0 2rem; }

.links h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.link-cards {
  display: flex;
  gap: 0.8rem;
  list-style: none;
}

.link-cards li a {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.link-cards li a:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--accent-glow);
  transform: translateY(-2px);
}

.link-icon { font-size: 1.3rem; width: 2rem; text-align: center; }

/* ---- Escritos page ---- */
.page-header {
  padding: 4rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.page-header h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.8rem;
  color: var(--ink);
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}

.intro {
  font-size: 1.1rem;
  color: var(--ink-light);
  font-weight: 300;
  max-width: 650px;
  line-height: 1.8;
}

/* ---- Table of contents ---- */
.toc {
  position: sticky;
  top: 42px;
  background: var(--bg-warm);
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  margin-bottom: 2.5rem;
  z-index: 50;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.toc strong {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  white-space: nowrap;
}

.toc-links { display: flex; flex-wrap: wrap; gap: 0.35rem; }

.toc a {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--ink-light);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}

.toc a:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* ---- Featured / Destaques ---- */
.featured-section { margin-bottom: 3rem; }
.featured-section h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--accent);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.featured-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.featured-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.featured-cover {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--bg-warm);
}

.featured-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.featured-info {
  padding: 0.8rem 1rem 1rem;
}

.featured-year {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.featured-info h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 0.3rem 0;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-info p {
  font-size: 0.75rem;
  color: var(--ink-muted);
  line-height: 1.4;
}

.featured-pub { font-style: italic; }

/* Preview on index */
.escritos-preview {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
}

.escritos-preview h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.ver-todos {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.7rem 1.5rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.ver-todos:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ---- Year markers ---- */
.year-marker {
  list-style: none;
  padding: 0 !important;
  margin: 1.5rem 0 0.5rem !important;
  border: none !important;
  background: none !important;
}

.year-marker span {
  display: inline-block;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  padding-bottom: 0.2rem;
  border-bottom: 2px solid var(--accent-glow);
}

/* ---- Items with cover thumbnails ---- */
ol.publications li.has-cover {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.cover-thumb {
  flex-shrink: 0;
  width: 60px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.cover-thumb:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.cover-thumb img {
  display: block;
  width: 100%;
  height: auto;
}

ol.publications li.has-cover > div {
  flex: 1;
  min-width: 0;
}

/* ---- Publication sections ---- */
section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 140px;
}

section h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

section h3 {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 1.5rem 0 0.8rem 0.2rem;
}

section h3:first-of-type { margin-top: 0; }

.section-count {
  background: var(--accent);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
}

/* ---- Publication list ---- */
ol.publications {
  list-style: none;
  counter-reset: pub;
}

ol.publications li {
  position: relative;
  padding: 1.2rem 1.5rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  line-height: 1.7;
  font-size: 0.92rem;
  color: var(--ink-light);
  transition: all var(--transition);
  border: 1px solid transparent;
}

ol.publications li:hover {
  background: var(--bg-warm);
  border-color: var(--border);
}

ol.publications li em {
  color: var(--ink);
  font-style: italic;
}

ol.publications li a:not(.pdf-link) {
  color: var(--accent);
  text-decoration: none;
}

ol.publications li a:not(.pdf-link):hover {
  text-decoration: underline;
}

/* ---- PDF badge ---- */
.pdf-link, .doi-link, .url-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.7rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  text-decoration: none !important;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-left: 0.4rem;
  vertical-align: middle;
  color: #fff !important;
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

.pdf-link {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  box-shadow: 0 1px 3px rgba(231,76,60,0.3);
}
.pdf-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(231,76,60,0.4);
}

.doi-link {
  background: linear-gradient(135deg, #27ae60, #1e8449);
  box-shadow: 0 1px 3px rgba(39,174,96,0.3);
}
.doi-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(39,174,96,0.4);
}

.url-link {
  background: linear-gradient(135deg, #2980b9, #1a5276);
  box-shadow: 0 1px 3px rgba(26,82,118,0.3);
}
.url-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(26,82,118,0.4);
}

/* ---- Footer ---- */
footer {
  max-width: 1000px;
  margin: 4rem auto 0;
  padding: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

footer p {
  color: var(--ink-muted);
  font-size: 0.82rem;
}

footer a {
  color: var(--ink-muted);
  text-decoration: none;
  border-bottom: 1px dotted var(--ink-muted);
  transition: color var(--transition);
}

footer a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  main { padding: 0 1.2rem; }
  .hero { grid-template-columns: 1fr; text-align: center; padding: 3rem 0; min-height: auto; }
  .hero-text h1 { font-size: 2.4rem; }
  .tagline { margin: 0 auto; }
  .portrait { width: 160px; height: 160px; order: -1; margin: 0 auto; }
  .bio-content { grid-template-columns: 1fr; }
  .stats { flex-wrap: wrap; gap: 2rem; justify-content: center; }
  .link-cards { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .toc { position: static; flex-direction: column; }
  .toc-links { flex-wrap: wrap; }
  .page-header h1 { font-size: 2rem; }
  ol.publications li { padding: 1rem; }
}

@media (max-width: 480px) {
  nav { padding: 0.8rem 1rem; gap: 1rem; }
  .nav-name { font-size: 1rem; }
  .hero-text h1 { font-size: 1.8rem; }
}