:root {
  --bg: #eef1f6;
  --surface: #f6f8fb;
  --text-main: #2b2f33;
  --text-muted: #555b63;
  --shadow-light: rgba(255, 255, 255, 0.9);
  --shadow-dark: rgba(0, 0, 0, 0.12);
  --link: #c49a4f;
  --strong: #5f7ea8;
  --card-divider: rgba(119, 136, 115, 0.45); }

html[data-theme="dark"] {
  --bg: #1a2029;
  --surface: #232b36;
  --text-main: #e7ebf0;
  --text-muted: #b2bac4;
  --shadow-light: rgba(255, 255, 255, 0.08);
  --shadow-dark: rgba(0, 0, 0, 0.55);
  --link: #d7b36b;
  --strong: #8fb2de;
  --card-divider: rgba(119, 136, 115, 0.28); }

* {
  box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "JetBrains Mono", serif;
  background: var(--bg);
  color: var(--text-main); }

a {
  color: var(--link);
  text-decoration: underline;
  transition: color 0.1s; }
  a:hover {
    color: var(--strong);
    text-decoration: underline; }

p {
  color: var(--text-muted);
  line-height: 1.7; }

strong {
  color: var(--strong);
  font-weight: 600; }

#card {
  max-width: 960px;
  margin: 4rem auto;
  padding: 2rem;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light); }

#top-controls {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  align-items: flex-end;
  padding-top: 1.4rem;
  margin-bottom: 2rem; }

label.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none; }
  label.theme-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none; }
  label.theme-toggle .theme-slider {
    width: 56px;
    height: 30px;
    border-radius: 999px;
    background: var(--surface);
    box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
    position: relative;
    transition: transform 0.2s ease; }
    label.theme-toggle .theme-slider::after {
      content: "";
      position: absolute;
      top: 3px;
      left: 3px;
      width: 24px;
      height: 24px;
      border-radius: 999px;
      background: var(--surface);
      box-shadow: 2px 2px 4px var(--shadow-dark), -2px -2px 4px var(--shadow-light);
      transition: transform 0.25s ease; }
  label.theme-toggle input:checked + .theme-slider::after {
    transform: translateX(26px); }
  label.theme-toggle input:focus-visible + .theme-slider {
    outline: 2px solid var(--strong);
    outline-offset: 3px; }

#language-switch {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
  align-items: center; }
  #language-switch button {
    margin-top: 0;
    padding: 0.45rem 0.75rem;
    border-radius: 14px;
    font-size: 0.9rem;
    letter-spacing: 0.02em; }

#portrait {
  text-align: center;
  margin-bottom: 2rem; }
  #portrait img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    background: var(--surface);
    padding: 8px;
    box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light); }
  #portrait h1 {
    margin-top: 2rem;
    font-family: "Roboto Condensed", serif;
    font-weight: 200; }

#info #content h1 {
  font-family: "Roboto Condensed", sans-serif; }

#info #content h2 {
  font-family: "Roboto Condensed", sans-serif; }

#info #content h3 {
  font-family: "Roboto Condensed", sans-serif;
  color: var(--text-muted); }

#info #content ul {
  padding-left: 1.2rem; }
  #info #content ul li {
    margin-bottom: 0.5rem;
    color: var(--text-muted); }
    #info #content ul li::marker {
      color: #c49a4f; }

button {
  margin-top: 2rem;
  padding: 0.9rem 1.8rem;
  border: none;
  border-radius: 20px;
  background: var(--surface);
  font-family: "Roboto Condensed", sans-serif;
  font-size: 1rem;
  cursor: pointer;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
  transition: all 0.2s ease; }
  button:hover {
    color: var(--strong);
    box-shadow: 3px 3px 6px var(--shadow-dark), -3px -3px 6px var(--shadow-light); }
  button:active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light); }

hr {
  margin: 2rem 0;
  border: none;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--card-divider), transparent); }

#publication .pubtitle {
  font-weight: 600;
  font-size: 1.1rem;
  font-family: "Roboto Condensed", sans-serif;
  color: var(--text-main); }

#publication .authors {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.0rem;
  margin-bottom: 1rem;
  font-style: italic; }

#portrait-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem; }
  #portrait-links a {
    width: 44px;
    height: 44px;
    display: flex;
    text-decoration: none;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--surface);
    font-size: 1.2rem;
    color: var(--strong);
    box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
    transition: all 0.2s ease; }
    #portrait-links a:hover {
      color: #4e9a94;
      box-shadow: 3px 3px 6px var(--shadow-dark), -3px -3px 6px var(--shadow-light); }
    #portrait-links a:active {
      box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light); }
  #portrait-links .fa-linkedin {
    color: #0072b1; }
  #portrait-links .fa-gitlab {
    color: #fc6d27; }
  #portrait-links .fa-github {
    color: var(--text-main); }
  #portrait-links .fa-google-scholar {
    color: #4285F4; }
  #portrait-links .fa-researchgate {
    color: #3EBB9C; }

@media (max-width: 900px) {
  #card {
    margin: 2rem 1.5rem;
    padding: 2rem; } }

@media (max-width: 600px) {
  body {
    font-size: 0.85rem; }
  #card {
    margin: 1.5rem 1rem;
    padding: 1.5rem; }
  #top-controls {
    align-items: right; }
  #language-switch {
    justify-content: center;
    flex-wrap: wrap; }
  #info > button {
    width: 100%; }
  #portrait img {
    width: 120px;
    height: 120px; }
  #portrait-links {
    gap: 0.75rem; } }