:root {
  --bg-app: #fdf6f0; /* Soft Cream */
  --bg-card: #ffffff;
  --text-main: #5d534a; /* Warm Coffee Brown */
  --text-muted: #a0938a;
  --border: #f1e4d9;
  --status-red: #ffadaa; /* Pastel Rose */
  --status-blue: #a3c9f1; /* Pastel Sky */
  --status-green: #a8dadc; /* Pastel Mint */
  --accent: #faedcd; /* Soft Butter */
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: "Quicksand", sans-serif; /* Round and friendly font */
  margin: 0;
  padding: 20px;
  padding-top: 110px;
  min-height: 100vh;
  overflow-y: auto;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  padding: 20px;
  border-bottom: 2px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.welcome-text h1 {
  font-size: 1.5rem;
  margin: 0;
  color: #5d534a;
}

.welcome-text p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-muted);
}

/* Stat Cards */
.stat-card {
  background: white;
  padding: 24px;
  border-radius: 20px; /* Super rounded corners */
  box-shadow: 0 8px 20px rgba(93, 83, 74, 0.05);
  margin-bottom: 30px;
  border: 1px solid var(--border);
}

.stat-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-weight: 700;
  color: #5d534a;
}

.progress-bar-container {
  width: 100%;
  height: 14px;
  background-color: #f1e4d9;
  border-radius: 20px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #a8dadc, #457b9d);
  transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1); /* Bouncy animation */
  border-radius: 20px;
}

/* Daily Mission Section */
.dashboard-section {
  background: #fff;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.section-title {
  font-size: 1.2rem;
  color: #5d534a;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px dashed var(--border);
}

.todo-input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

#todo-input {
  flex-grow: 1;
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: 15px;
  outline: none;
  font-family: inherit;
  background: #fffaf7;
  transition: border-color 0.3s;
}

#todo-input:focus {
  border-color: var(--status-blue);
}

#add-btn {
  background: var(--status-blue);
  color: white;
  border: none;
  width: 50px;
  border-radius: 15px;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 0px #7ca9d9;
  transition: 0.1s;
}

#add-btn:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0px #7ca9d9;
}

.daily-item {
  display: flex;
  align-items: center;
  padding: 12px;
  background: #fdfdfd;
  border-radius: 12px;
  margin-bottom: 8px;
  border: 1px solid #fcf2ea;
}

.task-text {
  flex-grow: 1;
  font-size: 15px;
  cursor: pointer;
}

.daily-item.done {
  opacity: 0.6;
  background: #f1f1f1;
}

.daily-item.done .task-text {
  text-decoration: line-through;
}

.delete-btn {
  color: var(--status-red);
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  opacity: 0.5;
  transition: 0.3s;
}

.delete-btn:hover {
  opacity: 1;
}

/* Syllabus Rows */
h2 {
  font-size: 1.3rem;
  margin: 30px 0 15px;
}
h3 {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin: 25px 0 12px;
}

.topic-row {
  display: flex;
  align-items: center;
  padding: 16px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 18px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.topic-row:hover {
  transform: scale(1.02);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 15px;
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px #eee;
}

.topic-row.not-started {
  border-left: 6px solid var(--status-red);
}
.topic-row.not-started .status-dot {
  background: var(--status-red);
  box-shadow: 0 0 0 2px var(--status-red);
}

.topic-row.learning {
  border-left: 6px solid var(--status-blue);
  background: #f0f7ff;
}
.topic-row.learning .status-dot {
  background: var(--status-blue);
  box-shadow: 0 0 0 2px var(--status-blue);
}

.topic-row.completed {
  border-left: 6px solid var(--status-green);
  background: #f0fdf4;
}
.topic-row.completed .status-dot {
  background: var(--status-green);
  box-shadow: 0 0 0 2px var(--status-green);
}
.topic-row.completed span {
  text-decoration: line-through;
  opacity: 0.5;
}

/* Sidebar */
#sidebar {
  position: fixed;
  top: 0;
  left: -280px;
  width: 280px;
  height: 100%;
  background: #fffcf9;
  z-index: 2000;
  transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 10px 0 30px rgba(93, 83, 74, 0.1);
  padding: 30px 20px;
}

#sidebar.open {
  left: 0;
}

.sidebar-header {
  font-weight: 700;
  font-size: 1.2rem;
  color: #5d534a;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#sidebar ul {
  list-style: none;
  padding: 0;
  margin-top: 40px;
}
#sidebar li {
  margin-bottom: 10px;
}
#sidebar li a {
  display: block;
  padding: 15px;
  text-decoration: none;
  font-weight: 600;
  color: var(--text-main);
  border-radius: 12px;
  transition: 0.3s;
}

#sidebar li a:hover {
  background: var(--accent);
  padding-left: 20px;
}

.menu-trigger {
  font-size: 24px;
  cursor: pointer;
  margin-right: 15px;
  background: #fff;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* Grid Layout */
.main-content {
  padding: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.dashboard-grid {
  display: grid;
  gap: 25px;
}

@media (min-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}