/* ── Theme Toggle Button ─────────────────────────────────────────── */
#theme-btn {
  position: fixed;
  top: 14px;
  right: 18px;
  z-index: 999;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  background: rgba(255,255,255,0.07);
  color: #838686;
  font-family: "HelveticaNeue", Helvetica, Arial, sans-serif;
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
#theme-btn:hover {
  background: rgba(255,255,255,0.14);
  color: #1fb3ff;
}

/* ── Light Theme ─────────────────────────────────────────────────── */
[data-theme="light"] body {
  background-color: #ededed;
  color: #616363;
  margin: 45px 20px 20px 20px;
}
[data-theme="light"] a {
  color: #472816;
}
[data-theme="light"] a:hover {
  color: #653417;
}
[data-theme="light"] .header_name {
  color: #111;
}
[data-theme="light"] .large_title {
  color: #a33b00;
}
[data-theme="light"] a.large_title:hover {
  color: #a33b00;
  font-size: 36px;
  text-decoration: none;
}
[data-theme="light"] .title {
  color: #111;
}
[data-theme="light"] .subtitle {
  color: #444;
}
[data-theme="light"] .subtitle a {
  color: #472816;
}
[data-theme="light"] .subtitle a:hover {
  color: #653417;
}
[data-theme="light"] .item:hover p {
  color: #333;
}
[data-theme="light"] .item.publications {
  text-align: left;
}
[data-theme="light"] #right_col .item.publications {
  text-align: left;
}
[data-theme="light"] #print_subtitle {
  display: none;
}
[data-theme="light"] #theme-btn {
  border-color: rgba(0,0,0,0.18);
  background: rgba(0,0,0,0.05);
  color: #616363;
}
[data-theme="light"] #theme-btn:hover {
  background: rgba(0,0,0,0.1);
  color: #a33b00;
}

/* ── Geocities Theme ─────────────────────────────────────────────── */
[data-theme="geocities"] body {
  background-color: #000066;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Crect width='120' height='120' fill='%23000066'/%3E%3Ccircle cx='12' cy='8' r='1' fill='white' opacity='0.9'/%3E%3Ccircle cx='60' cy='3' r='1.5' fill='white' opacity='0.7'/%3E%3Ccircle cx='95' cy='14' r='1' fill='white' opacity='0.8'/%3E%3Ccircle cx='34' cy='22' r='1' fill='white' opacity='0.6'/%3E%3Ccircle cx='78' cy='30' r='1' fill='%23aaaaff' opacity='0.9'/%3E%3Ccircle cx='5' cy='40' r='1.5' fill='white' opacity='0.5'/%3E%3Ccircle cx='50' cy='44' r='1' fill='white' opacity='0.8'/%3E%3Ccircle cx='110' cy='38' r='1' fill='%23ffaaaa' opacity='0.7'/%3E%3Ccircle cx='22' cy='58' r='1' fill='white' opacity='0.9'/%3E%3Ccircle cx='88' cy='55' r='1.5' fill='white' opacity='0.6'/%3E%3Ccircle cx='65' cy='70' r='1' fill='%23aaffaa' opacity='0.8'/%3E%3Ccircle cx='40' cy='80' r='1' fill='white' opacity='0.7'/%3E%3Ccircle cx='100' cy='78' r='1' fill='white' opacity='0.9'/%3E%3Ccircle cx='15' cy='90' r='1.5' fill='%23ffffaa' opacity='0.6'/%3E%3Ccircle cx='72' cy='95' r='1' fill='white' opacity='0.8'/%3E%3Ccircle cx='48' cy='110' r='1' fill='white' opacity='0.5'/%3E%3Ccircle cx='108' cy='105' r='1' fill='%23aaaaff' opacity='0.7'/%3E%3Ccircle cx='30' cy='115' r='1.5' fill='white' opacity='0.9'/%3E%3C/svg%3E");
  background-size: 120px 120px;
  background-repeat: repeat;
  font-family: "Comic Sans MS", "Chalkboard SE", cursive;
  color: #ccccff;
  margin: 45px 20px 200px 20px;
}
/* Horrible Geocities cursor */
[data-theme="geocities"],
[data-theme="geocities"] body,
[data-theme="geocities"] * {
  cursor: url("../img/shooting-star-cursor.png") 20 12, auto;
}
[data-theme="geocities"] a,
[data-theme="geocities"] button,
[data-theme="geocities"] #theme-btn {
  cursor: url("../img/shooting-star-cursor.png") 20 12, help;
}
[data-theme="geocities"] a {
  color: #00ffff;
  font-family: "Comic Sans MS", "Chalkboard SE", cursive;
  text-decoration: underline;
}
[data-theme="geocities"] a:hover {
  color: #ff00ff;
  text-decoration: underline;
}
[data-theme="geocities"] .header_name {
  font-family: "Comic Sans MS", cursive;
  font-size: 72px;
  font-weight: bold;
  background: linear-gradient(90deg,
    #ff0000, #ff7700, #ffff00, #00ff00,
    #0000ff, #8b00ff, #ff0000);
  background-size: 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gc-rainbow 3s linear infinite;
}
@keyframes gc-rainbow {
  0%   { background-position: 0%; }
  100% { background-position: 200%; }
}
[data-theme="geocities"] .large_title {
  font-family: "Comic Sans MS", cursive;
  font-size: 22px;
  color: #00ffff;
  text-shadow: 2px 2px #ff00ff;
}
[data-theme="geocities"] .title {
  font-family: "Comic Sans MS", cursive;
  color: #ffff00;
  font-size: 14px;
}
[data-theme="geocities"] .subtitle {
  font-family: "Comic Sans MS", cursive;
  color: #ff99ff;
  font-size: 13px;
}
[data-theme="geocities"] .subtitle a {
  color: #ff99ff;
}
[data-theme="geocities"] .subtitle a:hover {
  color: #ff00ff;
}
[data-theme="geocities"] p {
  font-family: "Comic Sans MS", cursive;
  color: #ccccff;
  font-size: 13px;
}
[data-theme="geocities"] .item {
  background: #000033;
  border: 3px outset #ff00ff;
  padding: 8px 10px;
}
[data-theme="geocities"] .item:nth-child(2n) { border-color: #00ff00; }
[data-theme="geocities"] .item:nth-child(3n) { border-color: #ffff00; }
[data-theme="geocities"] .item:nth-child(4n) { border-color: #ff7700; }
[data-theme="geocities"] .item:hover p { color: #ffffff; }
[data-theme="geocities"] #right_col .large_title {
  color: #ffff00;
  text-shadow: 2px 2px #ff0000;
}

/* Injected geocities elements */
[data-theme="geocities"] #gc-marquee {
  background: #000;
  border-top: 3px solid #ff0000;
  border-bottom: 3px solid #ff0000;
  padding: 4px 0;
}
[data-theme="geocities"] #gc-marquee marquee {
  color: #00ff00;
  font-family: "Comic Sans MS", cursive;
  font-size: 13px;
}
[data-theme="geocities"] #gc-construction {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px;
  background: #000;
  border: 3px dashed #ffff00;
  width: 800px;
  margin: 0 auto 10px;
  font-family: "Comic Sans MS", cursive;
  font-size: 18px;
  font-weight: bold;
  color: #ff0000;
}
[data-theme="geocities"] #gc-protein-wrap {
  width: 180px;
  margin: 8px auto 4px;
  text-align: center;
}
[data-theme="geocities"] #gc-protein-label {
  font-family: "Comic Sans MS", cursive;
  font-size: 10px;
  color: #00ffff;
  margin-top: 2px;
}
[data-theme="geocities"] #gc-counter {
  background: #000;
  border: 3px inset #888;
  padding: 4px 10px;
  margin: 6px auto;
  display: inline-block;
  font-family: "Courier New", monospace;
  font-size: 13px;
}
[data-theme="geocities"] .gc-counter-num {
  color: #00ff00;
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 4px;
  display: block;
}
[data-theme="geocities"] .gc-counter-label {
  display: block;
  color: #888;
  font-size: 11px;
}
[data-theme="geocities"] #gc-badge {
  font-family: "Comic Sans MS", cursive;
  font-size: 10px;
  color: #888;
  border: 1px solid #444;
  padding: 2px 6px;
  display: inline-block;
  margin-top: 4px;
}
[data-theme="geocities"] .gc-blink {
  animation: gc-blink 0.9s step-start infinite;
}
@keyframes gc-blink { 50% { opacity: 0; } }

[data-theme="geocities"] #theme-btn {
  font-family: "Comic Sans MS", cursive;
  border-color: #ff00ff;
  background: rgba(255,0,255,0.15);
  color: #ff00ff;
  box-shadow: 0 0 6px #ff00ff44;
}
[data-theme="geocities"] #theme-btn:hover {
  background: rgba(0,255,255,0.15);
  color: #00ffff;
  border-color: #00ffff;
  box-shadow: 0 0 6px #00ffff44;
}

/* ── Retro / 80s Theme ───────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=VT323&family=Orbitron:wght@700&display=swap');

[data-theme="retro"] body {
  background-color: #0d001a;
  color: #d0c8e8;
  margin: 45px 20px 200px 20px;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0.15) 0px,
    rgba(0,0,0,0.15) 1px,
    transparent 1px,
    transparent 3px
  );
  animation: flicker 9s infinite;
}
@keyframes flicker {
  0%, 96%, 100% { opacity: 1; }
  97%  { opacity: 0.87; }
  98%  { opacity: 1;    }
  99%  { opacity: 0.92; }
}
[data-theme="retro"] a {
  color: #ff2d78;
  text-shadow: 0 0 4px #ff2d7866;
  text-decoration: none;
}
[data-theme="retro"] a:hover {
  color: #00ffe7;
  text-shadow: 0 0 8px #00ffe7;
  text-decoration: none;
}
[data-theme="retro"] .header_name {
  font-family: 'Orbitron', sans-serif;
  color: #ff2d78;
  text-shadow: 0 0 8px #ff2d78, 0 0 28px #ff2d78aa, 0 0 60px #ff2d7844;
  letter-spacing: 0.08em;
}
[data-theme="retro"] .large_title {
  font-family: 'VT323', monospace;
  font-size: 42px;
  color: #00ffe7;
  text-shadow: 0 0 7px #00ffe7;
  letter-spacing: 0.06em;
}
[data-theme="retro"] a.large_title:hover {
  color: #00ffe7;
  font-size: 42px;
  text-shadow: 0 0 14px #00ffe7;
  text-decoration: none;
}
[data-theme="retro"] .title {
  color: #ffe600;
  text-shadow: 0 0 5px #ffe60088;
}
[data-theme="retro"] .subtitle {
  color: #cc88ff;
}
[data-theme="retro"] .subtitle a {
  color: #cc88ff;
  text-shadow: none;
}
[data-theme="retro"] .subtitle a:hover {
  color: #00ffe7;
  text-shadow: 0 0 8px #00ffe7;
  text-decoration: none;
}
[data-theme="retro"] .item {
  border-top: 1px solid #2a0044;
  position: relative;
  padding-top: 4px;
}
[data-theme="retro"] .item::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #ff2d78, #00ffe7, #ffe600, #ff2d78);
  background-size: 300% 100%;
  animation: shimmer 5s linear infinite;
  opacity: 0.6;
}
@keyframes shimmer {
  0%   { background-position: 0% 0; }
  100% { background-position: 300% 0; }
}
[data-theme="retro"] .item p {
  font-family: 'VT323', monospace;
  font-size: 17px;
  line-height: 1.5;
  color: #d0c8e8;
}
[data-theme="retro"] .item:hover p {
  color: #f0e6ff;
}
[data-theme="retro"] .item.publications {
  text-align: left;
}
[data-theme="retro"] #right_col .item.publications {
  text-align: left;
}
[data-theme="retro"] #print_subtitle {
  display: none;
}
[data-theme="retro"] #theme-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  border-color: #ff2d78;
  background: rgba(255,45,120,0.12);
  color: #ff2d78;
  text-shadow: 0 0 6px #ff2d78;
  box-shadow: 0 0 8px #ff2d7844;
}
[data-theme="retro"] #theme-btn:hover {
  background: rgba(0,255,231,0.12);
  color: #00ffe7;
  border-color: #00ffe7;
  text-shadow: 0 0 6px #00ffe7;
  box-shadow: 0 0 8px #00ffe744;
}