:root {
  --background: #16191f;
  --container-bg: #23272f;
  --text: #f1f5f9;
  --primary: #60aaff;
  --primary-dark: #205080;
  --border: #323337;
  --input-bg: #1e2127;
  --input-border: #2a2b2f;
  --input-focus: #60aaff;
  --result-bg: #23272f;
  --result-error-bg: #3a2020;
  --result-error-text: #ff8a8a;
  --small-note: #aaa;
  --radio-label: #eaeaea;
  --shadow: 0 6px 32px rgba(0,0,0,0.35);
  --scrollbar-thumb: #41506a;
  --scrollbar-thumb-hover: #60aaff;
  --scrollbar-track: #1e2127;
}

.light-theme {
  --background: #f9fafd;
  --container-bg: #fff;
  --text: #111;
  --primary: #2563eb;
  --primary-dark: #1743a2;
  --border: #e5e7eb;
  --input-bg: #fff;
  --input-border: #e5e7eb;
  --input-focus: #2563eb;
  --result-bg: #f1f5f9;
  --result-error-bg: #ffeaea;
  --result-error-text: #c1121f;
  --small-note: #888;
  --radio-label: #222;
  --shadow: 0 6px 32px rgba(0,0,0,0.07);
  --scrollbar-thumb: #b9cffc;
  --scrollbar-thumb-hover: #2563eb;
  --scrollbar-track: #e9eefd;
}

body {
  background: var(--background);
  background-image: url("WillsAnkylosaurus.svg");
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: 5% center;
  background-size: 50%; 
  color: var(--text);
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden; 
  transition: background .3s, color .3s;
}

.container {
  text-align: center;
  position: fixed;
  top: 7%;
  left: 50%;
  transform: translateX(-50%);
  max-width: 600px;
  width: 95vw;
  max-height: 90vh;
  min-height: 500px;
  overflow-y: auto;
  border-radius: 12px;
  box-shadow: 0 8px 40px 0 rgba(0,0,0,0.4), var(--shadow);
  background: var(--container-bg);
  z-index: 2;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.container::-webkit-scrollbar {
  width: 12px;
  background: var(--scrollbar-track);
}

.container::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 8px;
  border: 3px solid var(--container-bg);
  transition: background 0.3s;
}
.container::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

.container::-webkit-scrollbar-corner {
  background: var(--container-bg);
}

#themeToggle {
  position: fixed;
  top: 18px;
  right: 24px;
  z-index: 100;
  background: var(--container-bg);
  color: var(--primary);
  border: 1.5px solid var(--border);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.55em;
  cursor: pointer;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s, color .3s, border .3s;
  padding: 0;
}

#themeToggle:hover {
  background: var(--primary);
  color: var(--container-bg);
}

#themeToggle .sun-icon { display: none; }
#themeToggle .moon-icon { display: inline-block; }
body.light-theme #themeToggle .moon-icon { display: none; }
body.light-theme #themeToggle .sun-icon { display: inline-block; }
#themeToggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

.tab-switcher {
  display: flex;
  width: 100%;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
  border-bottom: 2px solid var(--border);
  background: var(--container-bg);
}

.tab-btn {
  flex: 1 1 50%;
  border: none;
  background: transparent;
  color: var(--primary-dark);
  font-size: 1.08em;
  font-weight: 500;
  padding: 16px 0 12px 0;
  cursor: pointer;
  transition: background .2s, color .2s, box-shadow .2s;
  border-bottom: 2.5px solid transparent;
  border-radius: 0;
  outline: none;
  margin: 0;
}

.tab-btn.active {
  background: var(--container-bg);
  color: var(--primary);
  border-bottom: 2.5px solid var(--primary);
  font-weight: 600;
  z-index: 2;
}

.tab-btn:not(.active) {
  background: var(--container-bg);
  color: var(--radio-label);
  opacity: 0.75;
  border-bottom: 2.5px solid var(--border);
}

.tab-content {
  padding: 32px 24px 24px 24px;
}

@media (max-width: 700px) {
  .container {
    position: fixed;
    left: 50%;
    top: 7%;
    bottom: 7%;
    transform: translateX(-50%);
    max-width: 98vw;
    min-width: 0;
    height: auto;
    max-height: unset; 
    border-radius: 10px;
    padding: 0;
  }
  .tab-content {
    padding: 18px 5vw 18px 5vw;
  }
  .credits {
    right: 3vw;
    bottom: 3vw;
    max-width: 95vw;
    font-size: 0.85em;
  }
}

#hoursTab, #moneyTab {
  margin-top: 0;
}

h1 {
  color: var(--primary);
  margin-bottom: 20px;
  margin-top: 5px;
}

input[type="text"], input[type="number"], input[type="password"] {
  width: 80%;
  padding: 12px;
  margin: 10px 0;
  font-size: 1.2em;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  border-radius: 6px;
  outline: none;
  transition: border .2s, background .3s, color .3s;
}
input:focus {
  border-color: var(--input-focus);
}

#moneyForm input[type="text"],
#moneyForm input[type="number"],
#moneyForm input[type="password"] {
  margin: 8px 0 10px 0;
  font-size: 1.1em;
}

button {
  background: var(--primary);
  color: var(--container-bg);
  border: none;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 1.1em;
  cursor: pointer;
  margin-top: 18px;
  transition: background .2s, color .2s;
}
button:hover {
  background: var(--primary-dark);
  color: var(--container-bg);
}
#useCalculatedHoursBtn {
  background: var(--primary-dark);
  color: var(--container-bg);
  margin-right: 8px;
  margin-top: 8px;
  padding: 10px 18px;
  font-size: 0.97em;
}
#useCalculatedHoursBtn:hover {
  background: var(--primary);
}

#result, #moneyResult {
  margin-top: 24px;
  font-size: 1.2em;
  background: var(--result-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 16px;
  min-height: 32px;
  transition: background 0.25s, color 0.25s;
}
#result.error, #moneyResult.error {
  animation: red-flash 0.5s;
  background: var(--result-error-bg) !important;
  color: var(--result-error-text);
}
@keyframes red-flash {
  0%   { background: var(--result-error-bg); }
  100% { background: var(--result-bg); }
}

.small-note {
  color: var(--small-note);
  font-size: 0.92em;
  margin-top: 18px;
}

.radio-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 12px;
}
.radio-group label {
  font-size: 1em;
  color: var(--radio-label);
}
.radio-group input[type="radio"] {
  margin-right: 4px;
}

.credits {
  position: fixed;
  right: 32px;
  bottom: 16px;
  margin: 0;
  text-align: right;
  max-width: 400px;
  color: var(--small-note, #888);
  font-size: 0.95em;
  letter-spacing: 0.01em;
  z-index: 10;
  background: transparent;
  pointer-events: none;
}
.credits-right {
  text-align: right;
  max-width: 400px;
  margin-left: auto;
  margin-right: 24px;
}

/* Radio buttons */
.radio-group input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  vertical-align: middle;
  margin-right: 8px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.radio-group input[type="radio"]:checked {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary)22;
  background: var(--input-bg);
}

.radio-group input[type="radio"]:checked::before {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.radio-group input[type="radio"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary)44;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 1em;
  color: var(--radio-label);
  cursor: pointer;
}

/* Remove spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  display: none;
}
input[type="number"] {
  -moz-appearance: textfield;
}