/* ============================================================
   Claire Zhang — Personal Portfolio
   Design System: calm-editorial-gallery
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300;0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&family=Inter:wght@300;400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  --bg: #F7F4EE;
  --bg-alt: #EFE9DF;
  --text: #1F2329;
  --text-light: #5A5E66;
  --secondary: #22324A;
  --accent: #6E8B77;
  --accent-hover: #5A7563;
  --border: #D8D2C8;
  --border-light: #E8E3DA;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(31,35,41,0.06);
  --shadow-md: 0 4px 12px rgba(31,35,41,0.08);
  --shadow-lg: 0 8px 30px rgba(31,35,41,0.10);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-heading: 'Newsreader', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --max-width: 1240px;
  --text-width: 720px;
  --transition: 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--secondary);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-size: 0.875rem;
  text-decoration: none;
}
.skip-link:focus {
  top: 16px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.25;
  color: var(--secondary);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; font-weight: 500; }

p { max-width: var(--text-width); }
p + p { margin-top: 1rem; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-hover); }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.section {
  padding: clamp(3rem, 6vw, 6rem) 0;
}

.section + .section {
  border-top: 1px solid var(--border-light);
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1.5rem;
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
}

/* --- Header / Nav --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.nav-logo:hover { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  text-decoration: none;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--secondary);
  background: var(--bg-alt);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 0.9375rem; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--secondary);
  color: var(--white);
}
.btn-primary:hover {
  background: #1a2738;
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--secondary);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--secondary);
  background: var(--bg-alt);
  color: var(--secondary);
}

.btn-text {
  background: transparent;
  color: var(--accent);
  padding: 8px 0;
}
.btn-text:hover { color: var(--accent-hover); }
.btn-text::after {
  content: '→';
  transition: transform var(--transition);
}
.btn-text:hover::after { transform: translateX(4px); }

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1.5rem;
}

/* --- Hero --- */
.hero {
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero-text h1 {
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--accent);
  font-style: italic;
  margin-bottom: 1.25rem;
  font-weight: 400;
}

.hero-description {
  font-size: 1.0625rem;
  color: var(--text-light);
  line-height: 1.75;
}

.hero-portrait-wrap {
  position: relative;
  justify-self: end;
  max-width: 420px;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #e8dfd3 0%, #d4cbc0 50%, #c8bfb4 100%);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-portrait {
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: center 15%;
  border-radius: var(--radius-lg);
  transform: translateY(-8%);
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-portrait-wrap {
    max-width: 280px;
    justify-self: center;
    order: -1;
  }
  .btn-group { justify-content: center; }
  .hero-description { margin-left: auto; margin-right: auto; }
}

/* --- Quick Facts Strip --- */
.facts-strip {
  background: var(--bg-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 1.25rem 0;
}

.facts-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  list-style: none;
}

.fact-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-light);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 100px;
}

.fact-chip .icon {
  font-size: 0.875rem;
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-image {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.card-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.card-meta {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* --- Featured Performance Block --- */
.performance-block {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.video-placeholder {
  aspect-ratio: 16 / 9;
  background: var(--secondary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.video-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.video-placeholder .play-icon {
  position: relative;
  z-index: 2;
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
}

.perf-details h3 { margin-bottom: 0.5rem; }
.perf-meta {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}
.perf-meta span + span::before {
  content: '·';
  margin: 0 0.5rem;
}

@media (max-width: 768px) {
  .performance-block { grid-template-columns: 1fr; }
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 2.5px solid var(--accent);
  z-index: 1;
}

.timeline-year {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--secondary);
  margin-bottom: 0.25rem;
}

.timeline-org {
  font-size: 0.8125rem;
  color: var(--text-light);
  font-weight: 500;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 0.5rem;
  line-height: 1.6;
}

/* --- Reflection / Quote Block --- */
.reflection-block {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3.5rem);
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.reflection-block p {
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-style: italic;
  color: var(--secondary);
  line-height: 1.75;
  max-width: 640px;
  margin: 0 auto;
}

.reflection-block .attribution {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.8125rem;
  color: var(--accent);
  margin-top: 1.25rem;
  font-weight: 500;
}

/* --- Page Header (subpages) --- */
.page-header {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--border-light);
}

.page-header h1 { margin-bottom: 0.75rem; }

.page-header .lead {
  font-size: 1.0625rem;
  color: var(--text-light);
  line-height: 1.75;
  max-width: var(--text-width);
}

/* --- Gallery --- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 6px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--secondary);
  color: var(--secondary);
  background: var(--bg-alt);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* --- Artwork Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31,35,41,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.modal-overlay.open { display: flex; }

.modal-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-image {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
  background: #f0ede6;
}

.modal-body {
  padding: 2rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 201;
  transition: transform var(--transition);
}
.modal-close:hover { transform: scale(1.1); }

/* --- Table (for repertoire etc) --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-light);
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border);
}

.data-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

.data-table tr:hover td {
  background: var(--bg-alt);
}

/* --- Resume Section --- */
.resume-section {
  margin-bottom: 2.5rem;
}

.resume-section h3 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-body);
}

.resume-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.resume-item-title {
  font-weight: 500;
  color: var(--secondary);
}

.resume-item-date {
  font-size: 0.8125rem;
  color: var(--text-light);
  white-space: nowrap;
}

.resume-item-desc {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* --- Downloads --- */
.download-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text);
}
.download-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  color: var(--text);
}

.download-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  color: var(--accent);
}

.download-info h4 {
  font-size: 1rem;
  margin-bottom: 0.125rem;
}

.download-desc {
  font-size: 0.8125rem;
  color: var(--text-light);
}

/* --- Contact --- */
.contact-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 520px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 0;
}
.contact-item + .contact-item {
  border-top: 1px solid var(--border-light);
}

.contact-item .icon {
  font-size: 1.125rem;
  color: var(--accent);
  width: 24px;
  text-align: center;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-size: 0.8125rem;
  color: var(--text-light);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--text-light);
}
.footer-links a:hover { color: var(--secondary); }

/* --- Fade-in animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- Interest Cards (Academics) --- */
.interest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.interest-card {
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
}

.interest-card h4 {
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.interest-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* --- Influence List --- */
.influence-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}

.influence-item {
  padding: 0.875rem 1.25rem;
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.influence-item .label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.25rem;
}

/* --- Training Block --- */
.training-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.training-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
}

.training-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--secondary);
  margin-bottom: 0.25rem;
}

.training-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
}

/* --- Print --- */
@media print {
  .site-header, .site-footer, .btn-group, .nav-toggle { display: none !important; }
  body { background: white; font-size: 11pt; }
  .section { padding: 1rem 0; }
  .container { max-width: 100%; padding: 0; }
}