@font-face {
  font-family: 'Geist';
  src: url('assets/Geist-ExtraLight.ttf') format('opentype');
  font-weight: normal;
  font-style: normal;
}

:root {
  --main: #ffffff;
  --switch: #007BFF;
  --header: #525556;
  --border: #000000;

  --bg-color: var(--main);
  --text-color: var(--border);
  --header-bg: var(--header);
  --button-bg: var(--main);
  --button-color: var(--switch);
}

[data-theme="dark"] {
  --main: #121212;
  --switch: #3399FF;
  --header: #ffffff; 
  --border: #cccccc;

  --bg-color: #121212;
  --text-color: #eeeeee;
  --header-bg: #ffffff; 
  --button-bg: #222222;
  --button-color: #3399FF;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Geist', serif;
  user-select: none;
  cursor: default;
}

.home-tab {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60vw;
  height: 64vh;
  transform: translate(-50%, -50%);
  background-color: var(--main);
  padding: 1em 2em;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-weight: bold;
  z-index: 10001;
  box-sizing: border-box;
  text-align: center;
  display: flex;
  flex-direction: column;
  cursor: default;
  color: var(--text-color);
}

.home-tab > h1 {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
  font-size: 54px;
}

.blue-name {
  color: var(--switch);
}

.home-tab .header {
  background-color: var(--header-bg);
  color: var(--main);
  padding: 0 1em;
  margin: -1em -2em 1em -2em;
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  font-weight: bold;
  font-size: 1rem;
  line-height: 0.8;
}

.button-group {
  margin: 1em 0;
  display: flex;
  justify-content: center;
  gap: 1em;
}

.button-group button {
  padding: 0.5em 1em;
  font-size: 1rem;
  font-weight: bold;
  border-radius: 6px;
  border: 2px solid var(--switch);
  background: var(--button-bg);
  color: var(--button-color);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
  user-select: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.button-group button:hover {
  background-color: var(--switch);
  color: var(--button-bg);
}

.button-group button:active {
  transform: translateY(2px);
  box-shadow: 0 2px 3px rgba(0, 0, 0, 0.15);
}

/* Draggable boxes */
.draggable-box {
  display: none;
  position: absolute;
  top: 100px;
  left: calc(50% - 325px);
  width: 650px;
  max-height: 70vh;
  overflow-y: auto;
  background-color: var(--main);
  padding: 0 1em 1em 1em;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-weight: bold;
  z-index: 10001;
  text-align: center;
  box-sizing: border-box;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 1;
  transform: scale(1);
  color: var(--text-color);
}

.draggable-box.pop-out {
  opacity: 0;
  transform: scale(0.5);
}

.draggable-box.pop-in {
  opacity: 1;
  transform: scale(1);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.draggable-box .header {
  position: sticky;
  top: 0;
  z-index: 2;
  background-color: var(--header-bg);
  color: var(--main);
  padding: 0.5em 1em;
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: default;
  user-select: none;
  margin: 0 -1em;
}

[data-theme="dark"] .draggable-box .header {
  color: #121212; 
}

.draggable-box .header .title {
  font-weight: bold;
  font-size: 1.3rem;
}

.draggable-box .header .close-btn {
  background: none;
  border: none;
  color: var(--main);
  font-size: 1.2rem;
  font-weight: bold;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  user-select: none;
  transition: transform 0.1s ease, color 0.1s ease;
}

[data-theme="dark"] .draggable-box .header .close-btn {
  color: #121212;
}

.draggable-box .header .close-btn:hover {
  transform: scale(1.15);
}

/* Email address tooltip */
#email-address {
  position: relative;
  cursor: pointer;
  outline: none;
  user-select: text;
  color: var(--switch);
}

#email-address::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--header-bg);
  color: var(--main);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 10;
}

#email-address::before {
  content: "";
  position: absolute;
  bottom: 115%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: var(--header-bg) transparent transparent transparent;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 10;
}

#email-address:hover::after,
#email-address:hover::before {
  opacity: 1;
}

#about-img {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 1em auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

#sound-toggle,
#dark-mode-toggle {
  position: fixed;
  top: 1em;
  width: 64px;
  height: 64px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--button-color);
  user-select: none;
  z-index: 9999;
  transition: color 0.3s ease;
}

#sound-toggle {
  left: 1em;
}

#dark-mode-toggle {
  left: calc(1em + 40px + 20px);
}

#sound-icon,
#dark-mode-icon {
  width: 40px;
  height: 40px;
  display: block;
  pointer-events: none;
  user-select: none;
  margin: auto;
}

#footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  text-align: center;
  padding: 1em 0;
  font-size: 0.85rem;
  color: var(--text-color);
  background: var(--bg-color);
  z-index: 999;
}

img.svg-icon {
  width: 32px;
  height: 32px;
  transition: filter 0.3s ease;
}

[data-theme="dark"] img.svg-icon {
  filter: invert(1);
}

.about-list {
  text-align: left;
  margin: 1em auto;
  max-width: 90%;
  padding-left: 1.5em;
  color: var(--text-color);
  font-size: 1rem;
}

.about-list li {
  margin-bottom: 0.5em;
  line-height: 1.4;
  list-style-type: disc;
}

#email-address {
  position: relative;
  display: inline-block; 
  cursor: pointer;
  outline: none;
  user-select: text;
  color: var(--switch);
}