@import url("https://fonts.googleapis.com/css2?family=Google+Sans:ital,opsz,wght@0,17..18,400..700;1,17..18,400..700&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap");

:root,
[data-theme="dark"] {
  --bg-color: #000000;
  --text-color: #ffffff;
  --shadow-color: rgba(255, 255, 255, 0.5);
  --shadow-color-hover: rgba(255, 255, 255, 1);
  --button-bg: #ff0000;
  --button-bg-hover: #cc0000;
  --button-text: #ffffff;
  --panel-bg: #1a1a1a;
  --panel-border: #333333;
  --input-bg: #3a3a3a;
  --muted-text: #b3b3b3;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg-color: #f5f5f5;
    --text-color: #111111;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --shadow-color-hover: rgba(0, 0, 0, 0.45);
    --button-bg: #ff0000;
    --button-bg-hover: #cc0000;
    --button-text: #ffffff;
    --panel-bg: #ffffff;
    --panel-border: #dddddd;
    --input-bg: #fafafa;
    --muted-text: #666666;
  }
}

[data-theme="light"] {
  --bg-color: #f5f5f5;
  --text-color: #111111;
  --shadow-color: rgba(0, 0, 0, 0.2);
  --shadow-color-hover: rgba(0, 0, 0, 0.45);
  --button-bg: #ff0000;
  --button-bg-hover: #cc0000;
  --button-text: #ffffff;
  --panel-bg: #ffffff;
  --panel-border: #dddddd;
  --input-bg: #fafafa;
  --muted-text: #666666;
}

html {
  color: var(--text-color);
  font-family:
    Google Sans,
    sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

h1,
h2 {
  color: var(--text-color);
  text-align: center;
  font-size: 35px;
  margin-left: 25px;
  margin-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 4px 20px;
  border-bottom: 1px solid var(--panel-border);
}

.brand {
  margin: 0;
  margin-left: 0;
  font-size: 28px;
  gap: 32px;
  justify-content: flex-start;
}

.brand ul {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.account {
  position: relative;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.account-toggle {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background-color: var(--button-bg);
  color: var(--button-text);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

.account-toggle:hover {
  background-color: var(--button-bg-hover);
}

.account-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 20;
  width: min(300px, calc(100vw - 32px));
  padding: 16px;
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow: 0 8px 24px var(--shadow-color);
}

.account-summary {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--panel-border);
}

.account-display-name {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
}

.account-display-email {
  margin: 0;
  color: var(--muted-text);
  font-size: 14px;
}

.account-form {
  display: grid;
  gap: 12px;
}

.account-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.account-form input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background-color: var(--input-bg);
  color: var(--text-color);
  font-family: inherit;
  font-size: 15px;
}

.account-form button {
  padding: 10px 18px;
  font-family: inherit;
  font-size: 16px;
  color: var(--button-text);
  background-color: var(--button-bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.account-form button:hover {
  background-color: var(--button-bg-hover);
}

.account-status {
  margin: 10px 0 0;
  color: var(--muted-text);
  font-size: 14px;
}

iframe {
  margin: 15px;
  width: 460px;
  height: 245px;
  border-radius: 15px;
  box-shadow: 0 0 8px 0 var(--shadow-color);
}

iframe:hover {
  box-shadow: 0 0 10px 0 var(--shadow-color-hover);
  transform: scale(1.03);
  transition: transform 0.2s ease-in-out;
}

.video-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.theme-toggle {
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.theme-toggle-track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 64px;
  height: 34px;
  padding: 0 8px;
  box-sizing: border-box;
  border-radius: 999px;
  background-color: #c9ccd1;
  color: #5f6368;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.theme-toggle.is-dark .theme-toggle-track {
  background-color: #3c4043;
  color: #f1c40f;
}

.theme-icon {
  width: 14px;
  height: 14px;
  z-index: 1;
  opacity: 0.75;
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease;
}

.theme-toggle.is-dark .theme-toggle-thumb {
  transform: translateX(30px);
  background-color: #202124;
}

.theme-toggle:hover .theme-toggle-track {
  filter: brightness(0.95);
}

#notification-button:hover {
  background-color: var(--button-bg-hover);
}

.bottom-line {
  height: 1px;
  width: 100%;
  background-color: var(--panel-border);
  margin: 20px 0;
}