:root {
  /* Light Mode Palette (Warm: Orange, Red, Yellow) */
  --bg: #fffcf9;
  --surface: #ffffff;
  --surface-hover: #fff3e5;
  --surface-subtle: #fdf5ef;
  --text: #291a14;
  --text-muted: #6b534b;
  --border: #eedec4;
  --border-hover: #d6ba9c;
  --accent: #e04a11;        /* Red-Orange */
  --accent-subtle: #ffedd5; /* Pale Orange */
  --accent-text: #b33608;   /* Deep Red-Orange */
  --status-bg: #fef08a;     /* Soft Yellow */
  --status-text: #9a5300;   /* Deep Yellow-Brown */
  --terminal-bg: #1f1411;
  --terminal-text: #f3e8e4;
  --shadow: 0 1px 3px rgba(41, 26, 20, 0.04), 0 1px 2px rgba(41, 26, 20, 0.02);
  --shadow-hover: 0 10px 25px -5px rgba(41, 26, 20, 0.08);

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;

  /* Layout */
  --radius: 16px;
  --radius-sm: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark Mode Palette (Warm: Orange, Red, Yellow) */
    --bg: #120c0a;
    --surface: #1a120f;
    --surface-hover: #261a15;
    --surface-subtle: #241814;
    --text: #fdf4f1;
    --text-muted: #a69087;
    --border: #38241d;
    --border-hover: #57392e;
    --accent: #f97316;        /* Bright Orange */
    --accent-subtle: rgba(249, 115, 22, 0.15);
    --accent-text: #fdba74;   /* Peach/Light Orange */
    --status-bg: rgba(250, 204, 21, 0.15); /* Yellow Tint */
    --status-text: #fde047;   /* Bright Yellow */
    --terminal-bg: #0a0605;
    --terminal-text: #e6d5cf;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 10px 30px -5px rgba(0, 0, 0, 0.6);
  }
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

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

/* ==========================================
   BENTO GRID HOMEPAGE LAYOUT
   ========================================== */
.container {
  max-width: 1040px;
  width: 100%;
  margin: 0 auto;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.tile {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.tile-span-2 {
  grid-column: span 2;
}

.tile-interactive {
  cursor: pointer;
  position: relative;
}

.tile-interactive:hover,
.tile-interactive:focus-visible {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  background-color: var(--surface-hover);
  outline: none;
}

/* ==========================================
   TYPOGRAPHY & BADGES
   ========================================== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.location-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--surface-subtle);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  display: inline-block;
}

h1 {
  font-size: clamp(1.85rem, 3vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.bio-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 58ch;
  margin-top: 0.5rem;
}

.card-summary {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0.85rem 0 1.5rem 0;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
}

.badge-status {
  background-color: var(--status-bg);
  color: var(--status-text);
}

.badge-license {
  background-color: var(--accent-subtle);
  color: var(--accent-text);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background-color: var(--surface-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.arrow-icon {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: transform 0.18s ease, color 0.18s ease;
}

.tile-interactive:hover .arrow-icon {
  transform: translate(3px, -3px);
  color: var(--accent);
}

/* ==========================================
   CONTACT & LINKS TILE
   ========================================== */
.links-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background-color: var(--surface-subtle);
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 0.92rem;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.social-link:hover {
  border-color: var(--border-hover);
  background-color: var(--surface-hover);
}

.social-link-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

.email-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.6rem 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  background-color: var(--surface-subtle);
  border: 1px solid var(--border);
  margin-top: 0.25rem;
}

.email-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.email-link:hover {
  color: var(--accent);
}

.copy-btn {
  background-color: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
  flex-shrink: 0;
}

.copy-btn:hover {
  border-color: var(--border-hover);
  color: var(--accent);
}

/* ==========================================
   PROJECT DETAIL PAGES (/relaiquary & /geodet)
   ========================================== */
.project-container {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
}

.back-nav {
  margin-bottom: 2rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.back-link:hover {
  color: var(--text);
  background-color: var(--surface);
  border-color: var(--border);
}

.project-header {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.project-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.project-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 0;
}

.project-pitch {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-color: var(--surface-subtle);
  color: var(--text-muted);
}

/* Terminal Mockup Window */
.terminal-window {
  background-color: var(--terminal-bg);
  color: var(--terminal-text);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #475569;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #94a3b8;
  margin-left: 0.5rem;
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  overflow-x: auto;
}

.cmd-prompt {
  color: #60a5fa;
  user-select: none;
}

.cmd-comment {
  color: #64748b;
}

.cmd-output {
  color: #cbd5e1;
}

/* Content Sections */
.content-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.content-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.content-card p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.content-card p:last-child {
  margin-bottom: 0;
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.feature-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  color: var(--accent);
}

.feature-list strong {
  color: var(--text);
}

.site-footer {
  margin-top: 2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================
   SPLIT PROFILE TILE (DESKTOP) & GOLD HANZI
   ========================================== */
.tile-profile {
  display: grid;
  grid-template-columns: 1fr 220px;
  grid-template-rows: auto 1fr auto;
  column-gap: 1.75rem;
  align-items: start;
}

.tile-profile h1 {
  grid-column: 1;
  grid-row: 1;
  margin-bottom: 0.5rem;
}

.profile-body {
  grid-column: 1;
  grid-row: 2;
}

.tile-profile .tag-list {
  grid-column: 1 / -1; /* Spans across both columns (full width) */
  grid-row: 3;
  margin-top: 1.75rem;
}

.avatar-large {
  grid-column: 2;
  grid-row: 1 / 3;     /* Stops at row 3 so the tags can sit underneath */
  align-self: center;
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--border-hover);
  box-shadow: var(--shadow);
}

.connect-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.connect-header .eyebrow {
  margin-bottom: 0;
}

.hanzi-signature {
  margin-top: 1.15rem;
  font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-size: 1.15rem;
  color: var(--status-text);
  letter-spacing: 0.28em;
  font-weight: 600;
  opacity: 0.92;
  display: inline-block;
}

/* ==========================================
   RESPONSIVE BREAKPOINTS
   ========================================== */
@media (max-width: 820px) {
  body {
    padding: 1.5rem 1rem;
    justify-content: flex-start;
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }

  .tile-span-2 {
    grid-column: span 1;
  }

  .tile-profile {
    grid-template-columns: 1.15fr 0.85fr; /* Photo takes ~43% of the card width */
    grid-template-rows: auto auto auto;
    column-gap: 1.25rem;
    row-gap: 1.35rem;
  }

  .tile-profile h1 {
    grid-column: 1;
    grid-row: 1;
    align-self: end; /* Centers your name vertically next to the big square photo */
    margin-bottom: 0;
  }

  .avatar-large {
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    max-width: 240px;
    justify-self: end;
    aspect-ratio: 1 / 1;
  }

  .profile-body {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .tile-profile .tag-list {
    grid-column: 1 / -1;
    grid-row: 3;
    margin-top: 0.5rem;
  }
}