/* ---------- Theme Variables ---------- */
:root {
  --bg-body: #556b2f;
  --bg-intro: #6b8e23;
  --text-color: #ffffff;
  --btn-bg: #dcedc8;
  --btn-text: #3e4e2f;
  --main-bg: linear-gradient(135deg, #a2d5ac, #f3f9d2);
  --container-bg: #f1f8e9;
  --border-color: #cddc39;
  --task-bg: #ffffff;
  --task-border: #c5e1a5;
  --task-timer: #33691e;
}

body.dark {
  --bg-body: #1e1e1e;
  --bg-intro: #2e2e2e;
  --text-color: #f1f1f1;
  --btn-bg: #3e4e2f;
  --btn-text: #dcedc8;
  --main-bg: linear-gradient(135deg, #303030, #1e1e1e);
  --container-bg: #2a2a2a;
  --border-color: #666666;
  --task-bg: #333333;
  --task-border: #444444;
  --task-timer: #8bc34a;
}
/* Toggle Switch Wrapper */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-family: 'Fredoka One', cursive;
  color: var(--text-color);
}

/* The toggle switch box */
.theme-switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

/* Hide default checkbox */
.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

/* Slider background */
.slider {
  position: absolute;
  cursor: pointer;
  background-color: #ccc;
  border-radius: 34px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transition: 0.4s;
}

/* Toggle circle */
.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: 0.4s;
}

/* Checked state */
.theme-switch input:checked + .slider {
  background-color: #8bc34a;
}

.theme-switch input:checked + .slider:before {
  transform: translateX(24px);
}

/* Add this for the circle effect */
.slider.round {
  border-radius: 34px;
}
.slider.round:before {
  border-radius: 50%;
}

/* ---------- Global ---------- */
body {
  margin: 0;
  padding: 0;
  font-family: "Fredoka One", cursive;
  background: var(--bg-body);
  color: var(--text-color);
  transition: background 0.3s, color 0.3s;
}

/* ---------- Intro Screen ---------- */
#intro-screen {
  height: 100vh;
  background: var(--bg-intro);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
}
#intro-screen h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--text-color);
  text-shadow: 2px 2px 3px rgba(0, 0, 0, 0.3);
}
#intro-screen img {
  width: 250px;
  height: auto;
  margin-bottom: 30px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
#start-btn {
  padding: 12px 30px;
  font-size: 20px;
  border: none;
  background: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}
#start-btn:hover {
  background: var(--btn-bg);
  transform: scale(1.05);
}

/* ---------- Main App ---------- */
#main-app {
  display: none;
  padding: 20px;
  background: var(--main-bg);
  min-height: 100vh;
  color: var(--text-color);
}

/* ---------- Container ---------- */
.container {
  max-width: 600px;
  margin: auto;
  background: var(--container-bg);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* ---------- Task Input Section ---------- */
.task-input-section {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
.task-input-section input[type="text"] {
  flex: 2;
  padding: 10px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  background: var(--task-bg);
  color: var(--text-color);
}
.task-input-section input[type="number"] {
  width: 80px;
  padding: 10px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  background: var(--task-bg);
  color: var(--text-color);
}
.task-input-section button {
  padding: 10px 20px;
  background: var(--btn-bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
  color: var(--btn-text);
  transition: background 0.3s;
}
.task-input-section button:hover {
  background: var(--btn-bg);
}

/* ---------- Task List ---------- */
ul {
  list-style: none;
  padding: 0;
}
li {
  background: var(--task-bg);
  border: 2px solid var(--task-border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.3s, color 0.3s, border 0.3s;
}
li.completed {
  text-decoration: line-through;
  color: #999999;
}

/* ---------- Checkbox & Timer ---------- */
.checkbox {
  margin-right: 10px;
}
.timer {
  font-size: 14px;
  color: var(--task-timer);
  margin-right: 10px;
  min-width: 60px;
}

/* ---------- Mobile ---------- */
@media (max-width: 600px) {
  #intro-screen h1 {
    font-size: 2rem;
  }
  .task-input-section {
    flex-direction: column;
  }
  .task-input-section input,
  .task-input-section button {
    width: 100%;
  }
  li {
    flex-direction: column;
    align-items: flex-start;
  }
  .timer {
    width: 100%;
    text-align: right;
  }
}