:root {
  --bg-base: #f4f4f5;
  --text-base: #000000;
  --accent-blue: #3b82f6;
  --gray-rgb: 0, 0, 0;
  --lanyard-border: rgba(0, 0, 0, 0.12);
  --lanyard-bg: #ffffff;
  --lanyard-fg: #000000;
  --lanyard-mute: rgba(0, 0, 0, 0.5);
  --lanyard-divider: rgba(0, 0, 0, 0.1);
  --photo-fallback-bg: #e4e4e7;
  --photo-fallback-fg: #71717a;
}

.dark {
  --bg-base: #000000;
  --text-base: #ffffff;
  --gray-rgb: 255, 255, 255;
  --lanyard-border: rgba(255, 255, 255, 0.18);
  --lanyard-bg: #0a0a0a;
  --lanyard-fg: #ffffff;
  --lanyard-mute: rgba(255, 255, 255, 0.55);
  --lanyard-divider: rgba(255, 255, 255, 0.12);
  --photo-fallback-bg: #18181b;
  --photo-fallback-fg: #52525b;
}

* {
  -webkit-tap-highlight-color: transparent;
}

html, body {
  touch-action: pan-x pan-y;
  user-select: none;
  -webkit-user-select: none;
}

body {
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  background-color: var(--bg-base);
  color: var(--text-base);
}

img {
  -webkit-user-drag: none;
  user-drag: none;
  pointer-events: none;
}

::selection {
  background: rgba(59, 130, 246, 0.25);
  color: inherit;
}

#theme-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: var(--bg-base);
  transform: scale(0);
  border-radius: 9999px;
  opacity: 0;
}

#theme-transition-overlay.expanding {
  animation: theme-expand 700ms cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

#theme-transition-overlay.shrinking {
  animation: theme-shrink 700ms cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

@keyframes theme-expand {
  0%   { transform: scale(0);    opacity: 1; border-radius: 9999px; }
  60%  { opacity: 1; }
  100% { transform: scale(35);   opacity: 1; border-radius: 0; }
}

@keyframes theme-shrink {
  0%   { transform: scale(35);   opacity: 1; border-radius: 0; }
  40%  { opacity: 1; }
  100% { transform: scale(0);    opacity: 1; border-radius: 9999px; }
}

#bg-canvas {
  z-index: -10;
}

.lanyard-wrap {
  --mx: 50%;
  --my: 50%;
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  --swing: 0deg;
  width: 280px;
  perspective: 1200px;
  transform-style: preserve-3d;
}

@media (min-width: 640px) {
  .lanyard-wrap { width: 320px; }
}

.lanyard-rope {
  position: absolute;
  top: -80px;
  left: 50%;
  width: 2px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--lanyard-border) 30%, var(--lanyard-border));
  transform: translateX(-50%);
  transform-origin: bottom center;
  z-index: 0;
}

.lanyard-rope::before,
.lanyard-rope::after {
  content: "";
  position: absolute;
  top: 30%;
  width: 2px;
  height: 2px;
  background: var(--lanyard-border);
  border-radius: 50%;
}

.lanyard-rope::before { left: -3px; }
.lanyard-rope::after  { right: -3px; }

.lanyard-clip {
  position: absolute;
  top: -8px;
  left: 50%;
  width: 36px;
  height: 18px;
  border: 2px solid var(--lanyard-border);
  border-radius: 4px 4px 6px 6px;
  transform: translateX(-50%);
  background: var(--lanyard-bg);
  z-index: 2;
}

.lanyard-clip::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 16px;
  height: 6px;
  background: var(--lanyard-border);
  border-radius: 0 0 4px 4px;
  transform: translateX(-50%);
}

.lanyard-card {
  position: relative;
  z-index: 1;
  margin-top: 12px;
  transform-style: preserve-3d;
  transform: rotateZ(var(--swing)) rotateX(calc(var(--tilt-y) * 0.4)) rotateY(calc(var(--tilt-x) * 0.4));
  transition: transform 220ms cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform;
  cursor: pointer;
}

.lanyard-wrap::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  width: 90%;
  height: 90%;
  background: rgba(0, 0, 0, 0.05);
  filter: blur(30px);
  transform: translateX(-50%);
  z-index: -1;
  border-radius: 24px;
  opacity: 0.6;
}

.dark .lanyard-wrap::before {
  background: rgba(255, 255, 255, 0.04);
}

.lanyard-wrap:hover .lanyard-card,
.lanyard-wrap.is-pressed .lanyard-card {
  animation: lanyard-swing 1.6s ease-in-out;
}

.lanyard-wrap:hover .lanyard-rope {
  animation: rope-swing 1.6s ease-in-out;
}

@keyframes lanyard-swing {
  0%   { transform: rotateZ(0deg)   rotateX(0deg)   rotateY(0deg); }
  15%  { transform: rotateZ(-8deg) rotateX(2deg)   rotateY(-3deg); }
  30%  { transform: rotateZ(7deg)  rotateX(-2deg)  rotateY(3deg); }
  45%  { transform: rotateZ(-5deg) rotateX(1.5deg) rotateY(-2deg); }
  60%  { transform: rotateZ(3deg)  rotateX(-1deg)  rotateY(1.5deg); }
  75%  { transform: rotateZ(-1.5deg) rotateX(0.5deg) rotateY(-0.8deg); }
  100% { transform: rotateZ(0deg) rotateX(0deg) rotateY(0deg); }
}

@keyframes rope-swing {
  0%   { transform: translateX(-50%) rotate(0deg); }
  15%  { transform: translateX(-50%) rotate(8deg); }
  30%  { transform: translateX(-50%) rotate(-7deg); }
  45%  { transform: translateX(-50%) rotate(5deg); }
  60%  { transform: translateX(-50%) rotate(-3deg); }
  75%  { transform: translateX(-50%) rotate(1.5deg); }
  100% { transform: translateX(-50%) rotate(0deg); }
}

.lanyard-card-inner {
  position: relative;
  background: var(--lanyard-bg);
  color: var(--lanyard-fg);
  border: 1.5px solid var(--lanyard-border);
  border-radius: 20px;
  padding: 18px 18px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 30px 60px -20px rgba(0, 0, 0, 0.25),
    0 18px 30px -25px rgba(0, 0, 0, 0.4);
}

.dark .lanyard-card-inner {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 30px 60px -20px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.02);
}

.lanyard-photo {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  overflow: hidden;
  background: var(--photo-fallback-bg);
  border: 1px solid var(--lanyard-divider);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.lanyard-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.lanyard-wrap:hover .lanyard-photo img {
  transform: scale(1.05);
}

.lanyard-photo.photo-fallback .photo-fallback-text {
  display: block;
}

.photo-fallback-text {
  display: none;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--photo-fallback-fg);
  text-align: center;
  line-height: 1.4;
}

.lanyard-meta {
  width: 100%;
  text-align: center;
}

.lanyard-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.lanyard-role {
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--lanyard-mute);
  margin-bottom: 12px;
}

.lanyard-divider {
  height: 1px;
  background: var(--lanyard-divider);
  margin: 10px 0 12px;
}

.lanyard-line {
  display: flex;
  justify-content: space-between;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 4px 0;
  color: var(--lanyard-mute);
}

.lanyard-line b {
  color: var(--lanyard-fg);
  font-weight: 600;
}

.lanyard-holes {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  z-index: 2;
}

.lanyard-holes span {
  width: 5px;
  height: 5px;
  background: var(--lanyard-bg);
  border: 1px solid var(--lanyard-border);
  border-radius: 50%;
}

.stat-card {
  border: 1px solid var(--lanyard-border);
  border-radius: 16px;
  padding: 18px 14px;
  text-align: center;
  background: var(--lanyard-bg);
  transition: transform 250ms ease, border-color 250ms ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
}

.stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 32px;
  line-height: 1;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--lanyard-fg), var(--lanyard-fg) 50%, var(--accent-blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
}

.code-block {
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  overflow: hidden;
  font-family: "JetBrains Mono", monospace;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.4);
}

.code-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.code-body {
  padding: 20px 22px;
  font-size: 13px;
  line-height: 1.7;
  color: #e4e4e7;
  overflow-x: auto;
  white-space: pre;
}

.t-key  { color: #93c5fd; }
.t-str  { color: #86efac; }
.t-num  { color: #fcd34d; }

.stack-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 8px;
  border: 1px solid var(--lanyard-border);
  border-radius: 14px;
  background: var(--lanyard-bg);
  font-size: 10px;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.05em;
  text-align: center;
  cursor: default;
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
  position: relative;
  overflow: hidden;
}

.stack-chip::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(59, 130, 246, 0.08) 50%, transparent 70%);
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 300ms ease;
}

.stack-chip:hover {
  transform: translateY(-3px);
  border-color: var(--accent-blue);
}

.stack-chip:hover::before {
  opacity: 1;
  animation: shimmer 2s linear infinite;
}

.stack-chip .stack-logo {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
}

.stack-chip .stack-logo svg {
  width: 100%;
  height: 100%;
}

.stack-chip .stack-name {
  font-size: 9px;
  text-transform: uppercase;
  opacity: 0.75;
  line-height: 1.1;
}

.service-card {
  border: 1px solid var(--lanyard-border);
  border-radius: 18px;
  padding: 24px 22px;
  background: var(--lanyard-bg);
  transition: transform 280ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 280ms ease;
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 400ms ease;
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-blue);
}

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

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  transition: transform 280ms ease;
}

.service-icon svg {
  width: 22px;
  height: 22px;
}

.service-card:hover .service-icon {
  transform: rotate(-8deg) scale(1.08);
}

.biz-card {
  border: 1px solid var(--lanyard-border);
  border-radius: 18px;
  padding: 24px;
  background: var(--lanyard-bg);
  transition: transform 280ms ease, border-color 280ms ease;
  display: flex;
  flex-direction: column;
  min-height: 180px;
  position: relative;
  overflow: hidden;
}

.biz-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
}

.biz-card-soft {
  background: linear-gradient(135deg, var(--lanyard-bg) 0%, rgba(59, 130, 246, 0.06) 100%);
}

.dark .biz-card-soft {
  background: linear-gradient(135deg, var(--lanyard-bg) 0%, rgba(59, 130, 246, 0.12) 100%);
}

.biz-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}

.biz-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.06);
  color: var(--lanyard-fg);
  text-transform: uppercase;
  white-space: nowrap;
}

.dark .biz-tag {
  background: rgba(255, 255, 255, 0.08);
}

.biz-tag-bot {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
}

.biz-tag-resell {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(59, 130, 246, 0.15));
  color: #a855f7;
}

.biz-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 18px;
  text-align: right;
  letter-spacing: -0.01em;
}

.biz-desc {
  font-size: 13px;
  opacity: 0.65;
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.biz-link {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--accent-blue);
  margin-top: auto;
  display: inline-block;
  transition: transform 200ms ease;
}

.biz-link:hover {
  transform: translateX(4px);
}

.contact-card {
  display: block;
  border: 1px solid var(--lanyard-border);
  border-radius: 16px;
  padding: 18px 16px;
  background: var(--lanyard-bg);
  text-align: left;
  transition: transform 220ms ease, border-color 220ms ease;
}

.contact-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-blue);
}

.contact-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.5;
  margin-bottom: 6px;
}

.contact-value {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 14px;
  word-break: break-all;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.2, 0.8, 0.2, 1), transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

#mobile-menu.open {
  display: block;
  animation: slide-down 250ms ease-out;
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(128, 128, 128, 0.25);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(128, 128, 128, 0.45);
}

@media (max-width: 640px) {
  .lanyard-wrap { width: 240px; }
  .code-body { font-size: 11px; }
  .stat-num { font-size: 26px; }
}

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