:root {
  --bg-gradient: linear-gradient(135deg, #0b1220 0%, #122b39 45%, #3c1874 100%);
  --accent: #ffd166;
  --accent-secondary: #06d6a0;
  --text-primary: #f8fbff;
  --text-secondary: rgba(248, 251, 255, 0.75);
  --card-bg: rgba(11, 18, 32, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --max-width: 1100px;
  --transition: all 0.3s ease;
  --timeline-track-width: 130px; /* 調整此值可左右移動得獎時間軸 */
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Poppins", "Noto Sans TC", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-size: 22px;
  background: var(--bg-gradient);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

section {
  position: relative;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px clamp(1.5rem, 4vw, 3rem);
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.9) 0%, rgba(11, 18, 32, 0) 100%);
  backdrop-filter: blur(6px);
}

.logo {
  font-weight: 700;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(4rem, 8vw, 6rem) clamp(1.5rem, 5vw, 5rem) clamp(3rem, 6vw, 5rem);
}

.hero-text .greeting {
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-secondary);
  font-weight: 600;
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  margin: 0.2em 0;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.hero-text .tagline {
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.3rem);
  max-width: 430px;
}

.cta-group {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
}

.btn.primary {
  background: var(--accent);
  color: #1b1b1f;
  box-shadow: var(--shadow);
}

.btn.primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 24px 60px rgba(255, 209, 102, 0.3);
}

.btn.ghost {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.hero-portrait {
  justify-self: center;
}

.portrait-frame {
  width: min(320px, 70vw);
  aspect-ratio: 1;
  border-radius: 36% 64% 68% 32% / 43% 42% 58% 57%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 209, 102, 0.3), transparent 60%),
    rgba(255, 255, 255, 0.05);
  padding: 18px;
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  position: relative;
  box-shadow: var(--shadow);
}

.portrait-frame::after {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.08);
  opacity: 0.4;
  animation: pulse 5s ease-in-out infinite;
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  filter: saturate(1.15) contrast(1.05);
}

.hero-wave {
  width: 100%;
  height: 160px;
  background: radial-gradient(circle at 50% -40px, rgba(255, 255, 255, 0.4), transparent 60%);
  opacity: 0.35;
}

.section {
  padding: clamp(4rem, 10vw, 6rem) 1.5rem;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0) 80%);
  pointer-events: none;
}

.section-title {
  max-width: var(--max-width);
  margin: 0 auto 3rem auto;
  text-align: left;
  position: relative;
}

.section-title span {
  font-size: 0.9rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--accent-secondary);
  font-weight: 600;
}

.section-title h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0.5rem 0 0;
}

.about-content,
.skill-grid,
.timeline,
.project-grid,
.contact-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-content p {
  margin-bottom: 1.4rem;
  color: var(--text-secondary);
}

.text-highlight {
  font-weight: 700;
  padding: 0 0.1rem;
}

.text-gold {
  color: #ffd874;
}

.text-front-runner {
  color: #74f0ff;
  text-shadow: 0 0 6px rgba(116, 240, 255, 0.45);
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.8rem;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 1.8rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 209, 102, 0.4);
}

.skill-card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.skill-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--text-secondary);
}

.skill-card li {
  margin-bottom: 0.6rem;
  padding-left: 1.2rem;
  position: relative;
}

.skill-card li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.timeline {
  display: grid;
  gap: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: var(--timeline-track-width) 1fr;
  gap: 1.5rem;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow);
  position: relative;
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-end;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(var(--timeline-track-width) - 60px);
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 209, 102, 0.6), rgba(6, 214, 160, 0.4));
  opacity: 0.6;
}

.timeline-year {
  font-size: 1.8rem;
  font-weight: 600;
  text-align: right;
  color: var(--accent);
}

.award-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.15rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.award-gold {
  background: rgba(255, 209, 102, 0.15);
  color: #ffd874;
  border: 1px solid rgba(255, 209, 102, 0.4);
}

.award-front {
  background: rgba(137, 255, 246, 0.15);
  color: #7cf6ff;
  border: 1px solid rgba(137, 255, 246, 0.4);
}

.timeline-content h3 {
  margin: 0 0 0.6rem;
}

.timeline-content p {
  margin: 0;
  color: var(--text-secondary);
}

.project-grid {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.project-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(255, 209, 102, 0.12), rgba(6, 214, 160, 0));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.project-card-horizontal {
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  gap: 1.6rem;
  align-items: center;
}

.project-card-has-stack {
  align-items: flex-start;
}

.project-card-text-only {
  grid-template-columns: 1fr;
}

.project-content {
  display: flex;
  flex-direction: column;
}

.project-card-horizontal .project-media {
  margin-top: 0;
}

.project-card-horizontal:not(.project-card-has-stack) .project-media {
  display: flex;
  justify-content: center;
  align-items: center;
}

.project-card-has-stack .project-media {
  display: block;
}

.project-card-has-stack .project-media.project-media-stack {
  display: grid;
}

.project-content .project-tag {
  margin-bottom: 1rem;
}

.project-content .project-link {
  margin-top: auto;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 209, 102, 0.4);
}

.project-card:hover::after {
  opacity: 1;
}

.project-tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.project-card h3 {
  margin: 0 0 0.8rem;
}

.project-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.project-highlights {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  color: var(--text-secondary);
}

.project-highlights li {
  margin-bottom: 0.65rem;
  padding-left: 1.2rem;
  position: relative;
}

.project-highlights li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.project-media {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.project-media-duo {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.project-media-stack {
  grid-template-columns: 1fr;
  display: grid;
}

.image-frame {
  border-radius: 16px;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.image-frame img {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  cursor: zoom-in;
}

.image-frame img:focus-visible {
  outline: 3px solid rgba(255, 209, 102, 0.6);
  outline-offset: 4px;
}

.image-frame figcaption {
  font-size: 0.85rem;
  color: rgba(248, 251, 255, 0.75);
  text-align: center;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 30;
}

.image-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.image-lightbox__content {
  max-width: min(920px, 90vw);
  max-height: min(80vh, 720px);
  background: rgba(12, 16, 28, 0.95);
  border-radius: 16px;
  padding: 1.6rem 1.6rem 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
  z-index: 1;
}

.image-lightbox__content img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}

.image-lightbox__content figcaption {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.lightbox-close {
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(11, 18, 32, 0.75);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  background: rgba(11, 18, 32, 0.95);
  outline: none;
  box-shadow: 0 0 12px rgba(255, 209, 102, 0.35);
}

.image-lightbox__backdrop {
  position: absolute;
  inset: 0;
  cursor: zoom-out;
}

.project-link {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.project-link::after {
  content: "➜";
  transition: transform 0.3s ease;
}

.project-card:hover .project-link::after {
  transform: translateX(4px);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.contact-card {
  background: var(--card-bg);
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.contact-card ul {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.contact-card li {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.contact-card span {
  color: var(--text-secondary);
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.contact-card a {
  color: var(--accent);
  font-weight: 600;
}

.single-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.single-card .btn {
  align-self: flex-start;
}

.single-card ul {
  margin-top: 0;
}

.footer {
  text-align: center;
  padding: 2rem 1.5rem 3rem;
  color: rgba(248, 251, 255, 0.55);
  font-size: 0.85rem;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.02);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 860px) {
  .navbar {
    padding: 20px 1.5rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: clamp(1.5rem, 5vw, 3rem);
    flex-direction: column;
    gap: 1rem;
    background: rgba(11, 18, 32, 0.95);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .hero-content {
    padding-top: 6rem;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .timeline-item::before {
    display: none;
  }

  .timeline-year {
    text-align: left;
  }

  .timeline-meta {
    align-items: flex-start;
    flex-direction: row;
    gap: 0.8rem;
  }

  .project-card-horizontal {
    grid-template-columns: 1fr;
  }

  .project-card-horizontal .project-media {
    margin-top: 1rem;
  }

  .single-card {
    text-align: center;
  }

  .single-card ul {
    align-items: center;
  }

  .single-card .btn {
    align-self: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}