/* 1) Color variables for light & dark modes */
:root {
    --color-bg: #FAFAFA;           /* off-white */
    --color-text: #333333;         /* charcoal */
    --color-accent: #A60000;       /* deep red accent */
  }
  html[data-theme="dark"] {
    --color-bg: #1E1E1E;           /* dark charcoal */
    --color-text: #FAFAFA;         /* off-white text */
    --color-accent: #FF7043;       /* muted accent for dark */
  }
  
  /* 2) Global resets & fonts */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
  }
/* Headings */
h1, h2, h3 {
    font-family: 'Noto Serif', serif;
    font-weight: 700;
  }
  
  /* Body and nav text */
  body, p, li, nav a {
    font-family: 'Noto Sans', sans-serif;
    font-weight: 400;
  }
  
  
  
  /* 3) Navigation */
  .tabs {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 1rem 0;
    margin: 0;
    border-bottom: 2px solid var(--color-text);
  }
  .tabs a {
    position: relative;
    padding: 0.5rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
  }
  .tabs a:hover,
  .tabs a:focus {
    color: var(--color-accent);
  }
  .tabs a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease-out;
    transform-origin: center;
  }
  .tabs a:hover::after,
  .tabs a:focus::after {
    transform: scaleX(1);
  }
    /* Highlight the active tab */
    .tabs a.active {
        color: var(--color-accent);
      }
    
      /* Underline the active tab */
      .tabs a.active::after {
        content: "";
        position: absolute;
        left: 0; right: 0; bottom: -2px;
        height: 2px;
        background: var(--color-accent);
        transform: scaleX(1);
        transform-origin: center;
      }
    
  #theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--color-text);
  }
  
  /* 4) Hero & Profile Pic */
  .hero {
    text-align: center;
    padding: 60px 20px;
  }
  .profile-pic {
    width: 150px;               /* adjust as needed */
    height: 150px;
    border-radius: 50%;         /* perfect circle */
    object-fit: cover;          /* fill the circle */
    border: none;               /* remove any border */
    box-shadow: none;           /* no drop-shadow */
    background-color: transparent;
    mix-blend-mode: normal;     /* sits naturally on bg */
  }
  
  .hero h1 {
    font-size: 3rem;
    margin-bottom: 0.2rem;
    letter-spacing: 1px;
  }
  .tagline {
    font-size: 1.2rem;
    color: var(--color-text);
  }
  
  /* 5) Sections */
  section {
    padding: 40px 20px;
    max-width: 700px;
    margin: 0 auto;
  }
  
  /* 6) Footer */
  footer {
    text-align: center;
    padding: 20px;
    background-color: var(--color-bg);
    font-size: 0.9rem;
  }
  
  /* 7) Scroll animation: fade-in */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
  /* position wrapper in the corner */
.theme-switch-wrapper {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
  }
  
  /* hide the checkbox itself */
  .theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
  }
  
  /* track */
  .theme-switch .slider {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
    background-color: var(--slider-bg);
    border-radius: 34px;
    transition: background-color 0.3s;
  }
  
  /* thumb */
  .theme-switch .slider:before {
    content: "";
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    top: 3px;
    background-color: var(--slider-thumb);
    border-radius: 50%;
    transition: transform 0.3s;
  }
  
  /* when checked, move thumb and change track color */
  .theme-switch input:checked + .slider {
    background-color: var(--color-accent);
  }
  .theme-switch input:checked + .slider:before {
    transform: translateX(26px);
  }
  
  /* optional: make it “round” */
  .slider.round {
    border-radius: 34px;
  }
  .slider.round:before {
    border-radius: 50%;
  }
  
  /* slider background variables */
  :root {
    --slider-bg: #ccc;
    --slider-thumb: #fff;
  }
  /* dark mode slider overrides */
  html[data-theme="dark"] {
    --slider-bg: #444;
    --slider-thumb: #1E1E1E;
  }




/* Base styles for floating icons */
.icon {
    position: absolute;
    bottom: 10%;
    width: 50px;
    opacity: 0.8;
    pointer-events: none; /* clicks go through */
  }
  
  /* Cart moves left→right */
  .icon-cart {
    animation: slide-cart 15s linear infinite;
  }
  
  /* Samurai moves right→left */
  .icon-horse {
    animation: slide-horse 20s linear infinite;
  }
  
  @keyframes slide-cart {
    from { transform: translateX(-150px); }
    to   { transform: translateX(110vw); }
  }
  
  @keyframes slide-horse {
    from { transform: translateX(110vw); }
    to   { transform: translateX(-150px); }
  }
  

    /* Map page tweaks */
.full-width {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 2rem auto;
  }
  #cartography p {
    max-width: 700px;
    margin: 1rem auto;
    font-family: 'Noto Sans', sans-serif;
    color: var(--color-text);
  }
  #cartography h2 {
    font-family: 'Noto Serif', serif;
    text-align: center;
    margin-bottom: 1rem;
  }
  /* Publications page specifics */
#publications {
  padding: 40px 20px;
  max-width: 700px;
  margin: 0 auto;
}

#publications h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.8rem;  
}

#publications h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.4rem;
  font-style: italic;
}

#publications ul {
  list-style: disc inside;
  margin-bottom: 2rem;
}

#publications li {
  margin-bottom: 1rem;
  line-height: 1.5;
}

/* Inline icons in the “Find Me Online” section */
#online .icon-inline {
  width: 24px;
  height: 24px;
  vertical-align: middle;
  margin-right: 0.3rem;
}
/* Inline icons in “Find Me Online” section */
.icon-inline {
  width: 24px;
  height: 24px;
  vertical-align: middle;
  margin-right: 0.3rem;
}

/* Optional spacing between each link */
#online p a {
  margin-right: 1rem;
  text-decoration: none;
  color: var(--color-text);
  transition: color 0.3s;
}

#online p a:hover {
  color: var(--color-accent);
}


/* CV page specifics */
#cv ul {
  list-style: none;
  padding: 0;
}

#cv li {
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

#cv .year {
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 0.5rem;
}

#cv section h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.6rem;
}

/* Reuse fade-in for each section */
#cv section {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px;
}
/* CV – icon styling */
#cv li {
  margin-bottom: 0.75rem;
  line-height: 1.4;
  list-style: none;
}

#cv .year {
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 0.5rem;
}

/* Section headings with emoji */
#cv section h2 {
  font-family: 'Noto Serif', serif;
  font-size: 1.6rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

/* Profile paragraph */
#profile p {
  max-width: 700px;
  margin: 0 auto 2rem;
}

/* Center main content */
#cv {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}
/* Presentations layout */
.presentations-list,
.honors-list {
  list-style: none;
  padding: 0;
}

.presentations-list li,
.honors-list li {
  margin-bottom: 1.25rem;
  line-height: 1.4;
}

/* Date column */
.presentations-list .date {
  display: inline-block;
  width: 100px;
  font-weight: 700;
  color: var(--color-accent);
}

/* Presentation title */
.presentations-list strong {
  display: block;
  font-family: 'Noto Serif', serif;
  font-size: 1rem;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
}

/* Venue / description */
.presentations-list em {
  display: block;
  font-family: 'Noto Sans', sans-serif;
  font-style: normal;
  color: var(--color-text);
  font-size: 0.9rem;
}

/* Honors & Fellowships */
#honors .year {
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 0.4rem;
  display: inline-block;
  width: 85px;
}
/* Profile text alignment */
#profile p {
  text-align: justify;
  text-justify: inter-word;
  /* Optional: add a bit of margin at bottom for breathing room */
  margin-bottom: 1.5rem;
}

/* Contact page – required asterisk */
#contact .required {
  color: #d12;            /* vivid red */
  margin-left: 0.25rem;
  font-weight: bold;
}

/* Heading + intro text */
#contact h2 {
  text-align: center;
  font-family: 'Noto Serif', serif;
  margin-bottom: 0.5rem;
}

#contact p {
  text-align: center;
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

/* Form grid */
#contact-form {
  display: grid;
  gap: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

#contact-form label {
  display: flex;
  flex-direction: column;
  font-family: 'Noto Sans', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
}

/* Inputs & textarea */
#contact-form input,
#contact-form textarea {
  margin-top: 0.3rem;
  padding: 0.6rem;
  border: 1px solid var(--color-text);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

#contact-form input:focus,
#contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Center reCAPTCHA */
.g-recaptcha {
  margin: 0 auto 1rem;
  width: 100%;
  max-width: 304px;
}

/* Submit button */
#contact-form button {
  padding: 0.75rem;
  font-size: 1rem;
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Noto Sans', sans-serif;
  transition: filter 0.2s;
}

#contact-form button:hover {
  filter: brightness(0.9);
}
/* PHOTO COLLAGE */
.photo-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 2px;
  height: 50vh;           /* now half of the viewport */
  overflow: hidden;
}
.photo-grid {
  height: 50vh;           /* half the viewport */
  /* … */
}

.about-overlay {
  /* was 50%: covers half the grid */
  height: 25%;            /* now covers only a quarter of the grid */
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(0,0,0,0.5);
  /* … */
}


.about-overlay h2 {
  font-family: 'Noto Serif', serif;
  margin: 0 0 0.5rem;
}
.about-overlay p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.4;
}

/* HOBBIES & INTERESTS */
#hobbies {
  max-width: 700px;
  margin: 2rem auto;
  padding: 0 1rem;
}
#hobbies h2 {
  font-family: 'Noto Serif', serif;
  text-align: center;
  margin-bottom: 1rem;
}
#hobbies ul {
  list-style: none;
  padding: 0;
}
#hobbies li {
  margin: 0.75rem 0;
  font-size: 1rem;
  font-family: 'Noto Sans', sans-serif;
  display: flex;
  align-items: center;
}
#hobbies li::before {
  content: "•";
  color: var(--color-accent);
  margin-right: 0.75rem;
}
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: auto;
  gap: 2px;
  width: 100%;
}

.photo-grid img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}
/* ABOUT FLEX LAYOUT */
.about-flex {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1.5rem;
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.avatar {
  flex: 0 0 150px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
}

.bio {
  flex: 1;
}

.bio h2 {
  font-family: 'Noto Serif', serif;
  margin-bottom: 0.5rem;
}

.bio p {
  margin-bottom: 1rem;
  line-height: 1.5;
  font-family: 'Noto Sans', sans-serif;
}

/* HOBBIES & INTERESTS */
#hobbies {
  max-width: 700px;
  margin: 2rem auto;
  padding: 0 1rem;
}

#hobbies h2 {
  font-family: 'Noto Serif', serif;
  text-align: center;
  margin-bottom: 1rem;
}

#hobbies ul {
  list-style: none;
  padding: 0;
}

#hobbies li {
  margin: 0.75rem 0;
  display: flex;
  align-items: center;
  font-family: 'Noto Sans', sans-serif;
}

#hobbies li::before {
  content: "•";
  color: var(--color-accent);
  margin-right: 0.75rem;
}
/* Under Construction Page */
.under-construction {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: 2rem 1rem;
}

.uc-content {
  max-width: 500px;
}

.uc-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.under-construction h2 {
  font-family: 'Noto Serif', serif;
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}

.under-construction p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1.1rem;
  line-height: 1.4;
  margin: 0.75rem 0;
}

.uc-emojis {
  font-size: 1.5rem;
  margin-top: 1rem;
}
/* Under Construction / Teaser layout */
.under-construction {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: 2rem 1rem;
}

.uc-content {
  max-width: 500px;
}

.uc-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.under-construction h2 {
  font-family: 'Noto Serif', serif;
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}

.under-construction p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1.1rem;
  line-height: 1.4;
  margin: 0.75rem 0;
}

.uc-emojis {
  font-size: 1.5rem;
  margin-top: 1rem;
}
/* Hide the honeypot off-screen */
.honeypot {
  position: absolute;
  left: -9999px;
  visibility: hidden;
}

/* Required-field asterisk */
#contact .required {
  color: #d12;
  margin-left: 0.25rem;
  font-weight: bold;
}

/* Center and style the reCAPTCHA widget */
.g-recaptcha {
  margin: 1rem auto;
  width: 100%;
  max-width: 304px;
}
/* Required‑field asterisk */
#contact .required {
  color: #d12;
  margin-left: 0.25rem;
  font-weight: bold;
}

/* Form layout */
#contact-form {
  display: grid;
  gap: 1rem;
  max-width: 600px;
  margin: 0 auto;
}
#contact-form label {
  display: flex;
  flex-direction: column;
  font-family: 'Noto Sans', sans-serif;
  font-weight: 500;
}
#contact-form input,
#contact-form textarea {
  margin-top: 0.3rem;
  padding: 0.6rem;
  border: 1px solid var(--color-text);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

/* Center the reCAPTCHA widget */
.g-recaptcha {
  margin: 1rem auto;
  width: 100%;
  max-width: 304px;
}

/* Submit button */
#contact-form button {
  padding: 0.75rem;
  background-color: var(--color-accent);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Noto Sans', sans-serif;
  transition: filter 0.2s;
}
#contact-form button:hover {
  filter: brightness(0.9);
}