/* latin-ext */
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 400;
  src: local('Lato Italic'), local('Lato-Italic'), url(https://fonts.gstatic.com/s/lato/v15/S6u8w4BMUTPHjxsAUi-qNiXg7eU0.woff2) format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 400;
  src: local('Lato Italic'), local('Lato-Italic'), url(https://fonts.gstatic.com/s/lato/v15/S6u8w4BMUTPHjxsAXC-qNiXg7Q.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 700;
  src: local('Lato Bold Italic'), local('Lato-BoldItalic'), url(https://fonts.gstatic.com/s/lato/v15/S6u_w4BMUTPHjxsI5wq_FQftx9897sxZ.woff2) format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 700;
  src: local('Lato Bold Italic'), local('Lato-BoldItalic'), url(https://fonts.gstatic.com/s/lato/v15/S6u_w4BMUTPHjxsI5wq_Gwftx9897g.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 400;
  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v15/S6uyw4BMUTPHjxAwXiWtFCfQ7A.woff2) format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 400;
  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v15/S6uyw4BMUTPHjx4wXiWtFCc.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 700;
  src: local('Lato Bold'), local('Lato-Bold'), url(https://fonts.gstatic.com/s/lato/v15/S6u9w4BMUTPHh6UVSwaPGQ3q5d0N7w.woff2) format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 700;
  src: local('Lato Bold'), local('Lato-Bold'), url(https://fonts.gstatic.com/s/lato/v15/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ── Color tokens ── */
:root {
  --bg:            #ffffff;
  --text:          #000000;
  --link:          #1772d0;
  --link-hover:    #f09228;
  --paper-row-bg:  #ffffff;
  --highlight-bg:  #ffffd0;
  --box-text:      #000000;
  --box-posters:   #fcb97d;
  --box-projects:  #aaba9e;
  --box-blogs:     #c6b89e;
  --box-teaching:  #edd892;
  --toggle-bg:     #f0f0f0;
  --toggle-border: #cccccc;
  --toggle-text:   #333333;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:            #1a1a1a;
    --text:          #d4d4d4;
    --link:          #7ab3e8;
    --link-hover:    #f0a848;
    --paper-row-bg:  #252525;
    --highlight-bg:  #3a3a1a;
    --box-text:      #e0e0e0;
    --box-posters:   #7a4e20;
    --box-projects:  #3a5030;
    --box-blogs:     #5a4a35;
    --box-teaching:  #5a4e18;
    --toggle-bg:     #2a2a2a;
    --toggle-border: #555555;
    --toggle-text:   #d4d4d4;
  }
}

[data-theme="dark"] {
  --bg:            #1a1a1a;
  --text:          #d4d4d4;
  --link:          #7ab3e8;
  --link-hover:    #f0a848;
  --paper-row-bg:  #252525;
  --highlight-bg:  #3a3a1a;
  --box-text:      #e0e0e0;
  --box-posters:   #7a4e20;
  --box-projects:  #3a5030;
  --box-blogs:     #5a4a35;
  --box-teaching:  #5a4e18;
  --toggle-bg:     #2a2a2a;
  --toggle-border: #555555;
  --toggle-text:   #d4d4d4;
}

/* ── Base styles ── */
body {
  background-color: var(--bg);
  color: var(--text);
}

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

a:focus,
a:hover {
  color: var(--link-hover);
  text-decoration: none;
}

body,
td,
th,
tr,
p,
a {
  font-family: 'Lato', Verdana, Helvetica, sans-serif;
  font-size: 14px;
}

strong {
  font-family: 'Lato', Verdana, Helvetica, sans-serif;
  font-size: 14px;
}

h2 {
  margin: 0;
  font-weight: normal;
  font-family: 'Lato', Verdana, Helvetica, sans-serif;
  font-size: 22px;
}

.papertitle {
  font-family: 'Lato', Verdana, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
}

.name {
  padding-top: 20px;
  margin: 0;
  font-family: 'Lato', Verdana, Helvetica, sans-serif;
  font-size: 32px;
}

.one {
  width: 160px;
  height: 160px;
  position: relative;
}

.two {
  width: 160px;
  height: 160px;
  position: absolute;
  transition: opacity .2s ease-in-out;
  -moz-transition: opacity .2s ease-in-out;
  -webkit-transition: opacity .2s ease-in-out;
}

.fade {
  transition: opacity .2s ease-in-out;
  -moz-transition: opacity .2s ease-in-out;
  -webkit-transition: opacity .2s ease-in-out;
}

span.highlight {
  background-color: var(--highlight-bg);
}

/* ── Paper rows ── */
.paper-row {
  background-color: var(--paper-row-bg);
}

/* ── Miscellanea colored boxes ── */
.colored-box {
  color: var(--box-text);
  padding: 20px;
  display: inline-block;
  border-radius: 10px;
}

.box-posters  { background-color: var(--box-posters); }
.box-projects { background-color: var(--box-projects); }
.box-blogs    { background-color: var(--box-blogs); }
.box-teaching { background-color: var(--box-teaching); }

/* ── Site nav ── */
.site-nav {
  text-align: center;
  padding: 18px 0 4px;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.site-nav a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.5;
}

.site-nav a:hover {
  opacity: 1;
  color: var(--link-hover);
}

.site-nav .nav-current {
  font-weight: 700;
  opacity: 1;
  color: var(--text);
  cursor: default;
  pointer-events: none;
}

.site-nav .nav-sep {
  margin: 0 10px;
  opacity: 0.3;
  color: var(--text);
}

/* ── Theme toggle button ── */
#theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  background: var(--toggle-bg);
  color: var(--toggle-text);
  border: 1px solid var(--toggle-border);
  border-radius: 20px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 16px;
  z-index: 1000;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  line-height: 1.4;
}

#theme-toggle:hover {
  opacity: 0.8;
}