* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: #e5e7eb;
}

.app {
    max-width: 500px;
    margin: 40px auto;
    background: #020617;
    padding: 20px;
    border-radius: 10px;
}

h1, h2 {
    text-align: center;
}

form {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

input, select, button {
    padding: 8px;
    border-radius: 6px;
    border: none;
}

input, select {
    flex: 1;
    background: #020617;
    color: #e5e7eb;
    border: 1px solid #334155;
}

button {
    background: #22c55e;
    color: #020617;
    cursor: pointer;
}

.calendar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin: 10px 0;
}

.day {
    padding: 10px;
    background: #020617;
    border: 1px solid #334155;
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
}

.day.active {
    background: #22c55e;
    color: #020617;
}

.dashboard {
    display: grid;
    gap: 12px;
    margin: 20px 0;
}

.card {
    background: #020617;
    border: 1px solid #334155;
    padding: 12px;
    border-radius: 8px;
}

.progress-bar {
    height: 10px;
    background: #020617;
    border: 1px solid #334155;
    border-radius: 6px;
    overflow: hidden;
}

#progressFill {
    height: 100%;
    width: 0%;
    background: #22c55e;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    background: #020617;
    border: 1px solid #334155;
    padding: 10px;
    margin-bottom: 6px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
}

li.done {
    text-decoration: line-through;
    opacity: 0.6;
}