/* ===== ABOUT PAGE DEDICATED SECTIONS ===== */

/* About page section spacing */
#about-header {
  min-height: auto;
  padding-top: 5rem;
  padding-bottom: 3rem;
  text-align: center;
  background: var(--bg-secondary);
}

.header-content .about-intro {
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
}

/* About overview section */
#about {
  padding: 5rem 5%;
  background: var(--bg-primary);
}

.about-overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 1.8rem;
  max-width: 1100px;
  margin: 0 auto 3.5rem;
}

.about-bio-card {
  max-width: 860px;
  margin: 0 auto;
}

/* Research section */
#about-research {
  background: var(--bg-secondary);
  padding: 5rem 5%;
}

.about-research-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.about-highlight-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.about-highlight-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.about-highlight-icon {
  font-size: 2rem;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

.about-highlight-card h3 {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.about-highlight-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.about-highlight-card ul {
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
}

.about-highlight-card ul li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.3rem 0 0.3rem 1.2rem;
  position: relative;
}

.about-highlight-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

.about-publications {
  max-width: 1100px;
  margin: 0 auto;
}

.about-publications h3 {
  color: var(--text-primary);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-align: center;
}

/* Academics section */
#about-academics {
  padding: 5rem 5%;
  background: var(--bg-primary);
}

.about-edu-info {
  max-width: 700px;
  margin: 0 auto 3rem;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  border-radius: 12px;
  padding: 2rem 2.5rem;
  text-align: center;
}

.about-edu-info h3 {
  color: var(--text-primary);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.about-edu-info p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.about-edu-info .gpa-badge {
  display: inline-block;
  margin-top: 0.8rem;
  background: var(--accent-gradient);
  color: white;
  padding: 0.4rem 1.2rem;
  border-radius: 20px;
  font-size: 0.95rem;
  font-weight: 600;
}

.about-honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.about-honor-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.about-honor-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

.about-honor-card .honor-icon {
  font-size: 1.6rem;
  color: #c9a96e;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.about-honor-card .honor-body h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

.about-honor-card .honor-body p {
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* Leadership section */
#about-leadership {
  padding: 5rem 5%;
  background: var(--bg-secondary);
}

.yoongwin-split-layout {
  max-width: 1100px;
  margin: 0 auto 1.8rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  gap: 1.5rem;
  align-items: stretch;
}

.yoongwin-role-card {
  height: 100%;
}

.yoongwin-video-card {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
}

.yoongwin-internship-video {
  width: 100%;
  height: 100%;
  max-height: 360px;
  border-radius: 12px;
  background: #000;
  object-fit: cover;
}

#about-internship-impact {
  padding: 5rem 5%;
  background: var(--bg-primary);
}

.internship-impact-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 1.4rem;
}

.internship-impact-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.internship-impact-card h3 {
  color: var(--text-primary);
  margin-bottom: 0.7rem;
  font-size: 1.1rem;
}

.internship-impact-card ul {
  padding-left: 1.1rem;
}

.internship-impact-card li {
  color: var(--text-secondary);
  margin-bottom: 0.45rem;
  line-height: 1.7;
}

#about-now-next {
  padding: 5rem 5%;
  background: var(--bg-secondary);
}

.now-next-grid {
  max-width: 1100px;
  margin: 0 auto 1.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 1.4rem;
}

.now-next-card,
.social-proof-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
}

.now-next-card h3,
.social-proof-card h3 {
  color: var(--text-primary);
  margin-bottom: 0.65rem;
}

.now-next-card ul {
  padding-left: 1.1rem;
}

.now-next-card li,
.social-proof-card p {
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

.social-proof-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 1.4rem;
}

.about-leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.about-role-card {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.about-role-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.about-role-card:hover::before {
  transform: scaleX(1);
}

.about-role-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.about-role-card .role-title {
  color: var(--accent-primary);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.4rem;
}

.about-role-card h3 {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.about-role-card .role-period {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--text-tertiary);
  font-size: 0.8rem;
  padding: 0.2rem 0.8rem;
  border-radius: 12px;
  margin-bottom: 0.8rem;
}

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

/* Skills section */
#about-skills-section {
  padding: 5rem 5%;
  background: var(--bg-primary);
}

.about-skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.about-skill-category {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.about-skill-category:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

.about-skill-category h3 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.about-skill-category h3 i {
  color: var(--accent-primary);
  font-size: 1.1rem;
}

.about-languages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: 1.2rem;
  max-width: 860px;
  margin: 0 auto;
}

.about-lang-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.about-lang-item:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.about-lang-item strong {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.about-lang-item span {
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* Connect section */
#about-connect {
  padding: 5rem 5%;
  background: var(--bg-secondary);
  text-align: center;
}

.about-connect-intro {
  max-width: 600px;
  margin: 0 auto 3rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto 2.5rem;
}

/* WeChat section within connect */
.wechat-qr-section {
  max-width: 190px;
  margin: 0 auto 3rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  scroll-margin-top: 7rem;
}

.wechat-qr-section:hover {
  box-shadow: 0 12px 35px -8px rgba(7,193,96,0.35);
}

.wechat-qr-section .wechat-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.wechat-qr-section .wechat-header i {
  font-size: 1.6rem;
  color: #07c160;
}

.wechat-qr-section h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.wechat-qr-section .wechat-badge {
  display: inline-block;
  background: rgba(7,193,96,0.12);
  color: #07c160;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 0.2rem 0.7rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.wechat-qr-section .wechat-qr-img {
  width: 150px;
  height: 150px;
  object-fit: contain;
  border-radius: 10px;
  border: 4px solid var(--qr-frame-bg);
  outline: 1px solid rgba(var(--wechat-green-rgb), 0.4);
  box-shadow: 0 12px 26px -16px rgba(var(--wechat-green-rgb), 0.7);
  display: block;
  margin: 0 auto;
  background: var(--qr-frame-bg);
}

.wechat-qr-section p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

.wechat-qr-fallback {
  display: none;
  padding: 2rem 0;
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

.wechat-qr-fallback i {
  font-size: 3rem;
  display: block;
  margin-bottom: 0.5rem;
}

.about-connect-card {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 14px;
  padding: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.about-connect-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.about-connect-card i {
  font-size: 1.8rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.about-connect-card .connect-info strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 0.2rem;
}

.about-connect-card .connect-info {
  min-width: 0;
  text-align: left;
}

.about-connect-card .connect-info span {
  font-size: 0.95rem;
  font-weight: 500;
  overflow-wrap: break-word;
}

.about-connect-card .connect-info .about-email-address {
  font-size: clamp(0.8rem, 2.7vw, 0.95rem);
  white-space: nowrap;
}

.about-connect-card .connect-info strong {
  overflow-wrap: break-word;
}

/* Back to home section */
#back-to-home {
  padding: 2rem 5%;
  text-align: center;
  background: var(--bg-primary);
  min-height: auto;
}

/* ===== HOVER TRANSFORMS (only on devices that support hover) ===== */
@media (hover: hover) {
  .about-highlight-card:hover { transform: translateY(-5px); }
  .about-honor-card:hover     { transform: translateY(-4px); }
  .about-role-card:hover      { transform: translateY(-6px); }
  .about-skill-category:hover { transform: translateY(-4px); }
  .about-lang-item:hover      { transform: translateY(-3px); }
  .wechat-qr-section:hover    { transform: translateY(-4px); }
  .about-connect-card:hover   { transform: translateY(-5px); }
}