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

:root {
  --bg: #fafaf8;
  --surface: #f3f2ef;
  --border: #e5e4e0;
  --text: #1a1a18;
  --text-muted: #6b6b67;
  --accent: #2c5f8a;
  --accent-hover: #1e4468;
  --accent-light: #eef3f8;
  --success: #2d7a4f;

  --font-sans: 'Georgia', 'Times New Roman', serif;
  --font-ui: system-ui, -apple-system, 'Segoe UI', sans-serif;

  --max-w: 1080px;
  --section-pad: 6rem 1.5rem;
  --radius: 6px;
  --transition: 160ms ease;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#nav.scrolled {
  border-color: var(--border);
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: normal;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.nav-logo:hover { text-decoration: none; color: var(--accent); }

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

.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

/* ── Hero ── */
#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6rem 1.5rem 4rem;
  position: relative;
}

.hero-inner {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 5rem;
  align-items: center;
}

.hero-text { max-width: 560px; }

.hero-label {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

#hero h1 {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: normal;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-portrait {
  position: relative;
}

.hero-portrait img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
  border-radius: 8px;
  display: block;
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.6;
  animation: bob 2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(4px); }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  border: 1.5px solid transparent;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 2px 12px rgba(44,95,138,0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--text-muted);
  background: var(--surface);
}

.btn-full { width: 100%; justify-content: center; }

/* ── Sections ── */
section { padding: var(--section-pad); }
section:nth-child(even) { background: var(--surface); }

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 600;
}

.section-inner > h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-intro {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 2.5rem;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 320px 1fr 300px;
  gap: 3.5rem;
  align-items: start;
  margin-top: 2.5rem;
}

.about-photo img {
  width: 100%;
  border-radius: 8px;
  display: block;
  object-fit: cover;
  aspect-ratio: 3 / 4;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
}

.about-text h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.1rem;
  font-size: 1.025rem;
}
.about-text p:last-child { margin-bottom: 0; }

.about-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.about-card:last-child { margin-bottom: 0; }

.about-card h3 {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.about-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.about-card li {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text);
  padding-left: 0.85rem;
  position: relative;
}
.about-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Gallery Strip ── */
#gallery {
  padding: 0;
  background: var(--text);
  overflow: hidden;
}

.gallery-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.gallery-item {
  margin: 0;
  position: relative;
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease, filter 0.5s ease;
  filter: brightness(0.88);
}

.gallery-item:hover img {
  transform: scale(1.04);
  filter: brightness(1);
}

.gallery-item figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2rem 1.25rem 1.1rem;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 100%);
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.4;
  pointer-events: none;
}

/* ── Publications ── */
#publications .section-inner > h2 { margin-bottom: 0.75rem; }

.pub-search-wrap {
  position: relative;
  margin-bottom: 1.5rem;
}
.pub-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
#pub-search {
  width: 100%;
  max-width: 360px;
  padding: 0.55rem 0.75rem 0.55rem 2.25rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
}
#pub-search:focus { border-color: var(--accent); }

/* ── Poem decade accordions ── */
.poem-decade {
  border-bottom: 1px solid var(--border);
}
.poem-decade:first-of-type { border-top: 1px solid var(--border); }
.poem-decade.hidden { display: none; }

.poem-decade-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.poem-decade-summary::-webkit-details-marker { display: none; }
.poem-decade-summary::before {
  content: '▶';
  font-size: 0.65rem;
  color: var(--accent);
  transition: transform var(--transition);
}
details[open] > .poem-decade-summary::before { transform: rotate(90deg); }

.poem-count {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.poem-list {
  list-style: none;
  padding: 0 0 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.poem-entry {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.poem-entry:last-child { border-bottom: none; }
.poem-entry.hidden { display: none; }

.pub-tabs {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.pub-tab {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.pub-tab:hover { color: var(--text); }
.pub-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 500;
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pub-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  transition: opacity var(--transition);
}
.pub-item:first-child { border-top: 1px solid var(--border); }

.pub-item.hidden {
  display: none;
}

.pub-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding-top: 0.15rem;
}

.pub-year {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.pub-tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  white-space: nowrap;
}

.pub-content h3 {
  font-size: 1.05rem;
  font-weight: normal;
  line-height: 1.4;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.pub-venue {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.pub-abstract {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.pub-link {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.01em;
}
.pub-link:hover { text-decoration: underline; }

.pub-footer {
  margin-top: 2.5rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 5rem;
  align-items: start;
  margin-top: 2.5rem;
}

.contact-text h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.contact-text > p {
  color: var(--text-muted);
  font-size: 1.025rem;
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-detail { display: flex; flex-direction: column; gap: 0.25rem; }

.contact-detail-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-detail a,
.contact-detail span {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--text);
  line-height: 1.5;
}
.contact-detail a { color: var(--accent); }
.contact-detail a:hover { text-decoration: underline; }

.contact-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.contact-links a {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--accent);
}

/* ── Form ── */
.contact-form-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

label {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

input, textarea {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.625rem 0.875rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
  -webkit-appearance: none;
}

input::placeholder, textarea::placeholder { color: var(--text-muted); opacity: 0.7; }

input:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(44,95,138,0.12);
}

input.invalid, textarea.invalid {
  border-color: #c0392b;
}
input.invalid:focus, textarea.invalid:focus {
  box-shadow: 0 0 0 3px rgba(192,57,43,0.12);
}

.form-error {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: #c0392b;
  min-height: 1em;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--success);
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: #edf7f1;
  border-radius: var(--radius);
}

/* ── Footer ── */
footer {
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: center;
}
footer p {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .hero-inner {
    grid-template-columns: 1fr 300px;
    gap: 3rem;
  }
  .about-grid {
    grid-template-columns: 260px 1fr 280px;
    gap: 2.5rem;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  .hero-text { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-portrait {
    max-width: 360px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .about-photo {
    grid-column: 1 / -1;
    max-width: 380px;
  }
  .about-photo img { aspect-ratio: 16 / 9; object-position: center 30%; }

  .gallery-strip { grid-template-columns: 1fr 1fr; }
  .gallery-item:last-child { grid-column: 1 / -1; }
  .gallery-item:last-child img { height: 260px; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-form-wrap { padding: 1.5rem; }
}

@media (max-width: 640px) {
  :root { --section-pad: 4rem 1.25rem; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 1.5rem 1.75rem;
    gap: 1.25rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .nav-links.open a { font-size: 1rem; }
  .nav-toggle { display: flex; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-photo { max-width: 100%; }
  .about-photo img { aspect-ratio: 4 / 3; }

  .gallery-strip { grid-template-columns: 1fr; }
  .gallery-item img { height: 260px; }
  .gallery-item:last-child { grid-column: auto; }
  .gallery-item:last-child img { height: 260px; }

  .pub-item {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
  .pub-meta { flex-direction: row; align-items: center; }

  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 260px; justify-content: center; }
}