:root {
  --font-main: "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", sans-serif;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  line-height: 1.6;
  color: #1a1a1a;
  background: #f4f5f7;
}

body[data-mode="life"] {
  --hero-bg: #2b2b2b;
  --hero-text: #fff;
  --accent: #e84c47;
  --accent-soft: #4bd9bf;
  --section-alt: #e8e8e8;
  --nav-bg: rgba(43, 43, 43, 0.95);
}

body[data-mode="work"] {
  --hero-bg: #0f2744;
  --hero-text: #fff;
  --accent: #2563eb;
  --accent-soft: #60a5fa;
  --section-alt: #eef2ff;
  --nav-bg: rgba(15, 39, 68, 0.96);
}

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

a:hover {
  text-decoration: underline;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: var(--nav-bg);
  backdrop-filter: blur(8px);
}

.site-nav .brand {
  color: var(--hero-text);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
}

.site-nav .brand:hover {
  text-decoration: none;
  opacity: 0.9;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  align-items: center;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.nav-links a:hover {
  color: #fff;
  text-decoration: none;
}

.mode-toggle {
  display: inline-flex;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

.mode-toggle button {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.35rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.mode-toggle button.active {
  background: #fff;
  color: #1a1a1a;
}

.mode-work,
.mode-life {
  display: block;
}

body[data-mode="life"] .mode-work {
  display: none !important;
}

body[data-mode="work"] .mode-life {
  display: none !important;
}

.hero {
  background: var(--hero-bg);
  color: var(--hero-text);
  text-align: center;
  padding: 3rem 1.25rem 3.5rem;
}

.hero-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: 0.08em;
}

.hero .name-en {
  margin: 0 0 1rem;
  opacity: 0.85;
  font-size: 1.1rem;
}

.hero .tagline {
  max-width: 640px;
  margin: 0 auto 1rem;
  font-size: 1.05rem;
  opacity: 0.92;
}

.hero .quote {
  max-width: 560px;
  margin: 0 auto;
  font-style: italic;
  opacity: 0.75;
  font-size: 0.95rem;
}

.section {
  padding: 3rem 1.25rem;
}

.section-alt {
  background: var(--section-alt);
}

.section-inner {
  max-width: 960px;
  margin: 0 auto;
}

.section-title {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  font-weight: 800;
}

.section-subtitle {
  margin: 0 0 1.75rem;
  color: #666;
  font-size: 0.95rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.card .meta {
  color: #666;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.card ul {
  margin: 0;
  padding-left: 1.15rem;
}

.card ul li {
  margin-bottom: 0.35rem;
  font-size: 0.92rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tags span {
  background: #fff;
  border: 1px solid #dbeafe;
  color: #1e40af;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

body[data-mode="life"] .skill-tags span {
  border-color: #fecaca;
  color: #991b1b;
  background: #fff;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.info-table th,
.info-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.info-table th {
  width: 28%;
  background: #fafafa;
  font-weight: 700;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

.timeline {
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.4rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
  padding: 1rem 1.15rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 1.25rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.timeline-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--accent);
}

.timeline-item p {
  margin: 0;
  font-size: 0.92rem;
  color: #444;
}

.embed-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #000;
}

.embed-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.twitch-embed {
  min-height: 480px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.92;
  text-decoration: none;
  color: #fff;
}

.btn-outline {
  background: #fff;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  text-decoration: none;
  background: var(--accent);
  color: #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.contact-card h3 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.contact-card dl {
  margin: 0;
}

.contact-card dt {
  font-weight: 700;
  font-size: 0.85rem;
  color: #666;
  margin-top: 0.75rem;
}

.contact-card dt:first-child {
  margin-top: 0;
}

.contact-card dd {
  margin: 0.15rem 0 0;
}

.contact-card .placeholder {
  color: #999;
  font-style: italic;
}

.site-footer {
  background: #252525;
  color: #fff;
  padding: 2rem 1.25rem;
  text-align: center;
}

.site-footer p {
  margin: 0 0 1rem;
  opacity: 0.85;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
}

.footer-links a {
  color: #fff;
  opacity: 0.85;
  font-size: 0.9rem;
  font-weight: 600;
}

.footer-links a:hover {
  opacity: 1;
  text-decoration: none;
}

@media (max-width: 640px) {
  .site-nav {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links {
    justify-content: center;
  }

  .mode-toggle {
    align-self: center;
  }

  .hero {
    padding: 2.5rem 1rem 3rem;
  }

  .section {
    padding: 2.25rem 1rem;
  }
}