* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #fff0f6, #fce7f3, #fdf2f8);
    color: #4a1d35;
    line-height: 1.6;
}

header {
    background-color: #fff7fb;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(236, 72, 153, 0.15);
}

nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #be185d;
    font-weight: bold;
}

nav a:hover {
    color: #db2777;
}

main {
    width: 90%;
    max-width: 1000px;
    margin: 40px auto;
}

section {
    background-color: rgba(255, 255, 255, 0.85);
    padding: 30px;
    margin-bottom: 25px;
    border-radius: 24px;
    box-shadow: 0 8px 25px rgba(236, 72, 153, 0.15);
    border: 1px solid #fbcfe8;
}

h1, h2, h3 {
    margin-bottom: 15px;
    color: #9d174d;
}

p {
    margin-bottom: 12px;
}

button,
main a {
    display: inline-block;
    background: linear-gradient(135deg, #ec4899, #f472b6);
    color: white;
    padding: 11px 18px;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 5px 14px rgba(236, 72, 153, 0.25);
}

button:hover,
main a:hover {
    background: linear-gradient(135deg, #db2777, #ec4899);
}

input,
select {
    width: 100%;
    padding: 12px;
    margin: 8px 0 18px;
    border: 1px solid #f9a8d4;
    border-radius: 12px;
    background-color: #fff7fb;
}

label {
    font-weight: bold;
    color: #9d174d;
}


footer {
    text-align: center;
    padding: 20px;
    color: #9d174d;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    main {
        width: 95%;
        margin: 25px auto;
    }

    section {
        padding: 22px;
    }

    h1 {
        font-size: 28px;
    }

    button,
    main a {
        width: 100%;
        text-align: center;
        margin-top: 8px;
    }
}

.habit-card {
    background-color: #fff7fb;
    border: 1px solid #fbcfe8;
    padding: 20px;
    margin-top: 15px;
    border-radius: 18px;
    box-shadow: 0 5px 14px rgba(236, 72, 153, 0.12);
}

#habitList h3 {
    color: #be185d;
}

#habitList button {
    margin-right: 8px;
    margin-top: 10px;
}

.progress-container {
    width: 100%;
    height: 18px;
    background-color: #fce7f3;
    border-radius: 999px;
    overflow: hidden;
    margin: 15px 0;
}

#progressBar {
    height: 100%;
    width: 0%;
    background: linear-gradient(135deg, #ec4899, #f472b6);
    border-radius: 999px;
}

.completed {
    opacity: 0.7;
}

.completed h3,
.completed p {
    text-decoration: line-through;
}


.success-message {
    color: #15803d;
    background-color: #dcfce7;
    padding: 10px;
    border-radius: 10px;
    margin-top: 10px;
}

.error-message {
    color: #be123c;
    background-color: #ffe4e6;
    padding: 10px;
    border-radius: 10px;
    margin-top: 10px;
}

nav a.active {
    background-color: #fce7f3;
    color: #9d174d;
    padding: 8px 14px;
    border-radius: 999px;
}

.badge {
    display: inline-block;
    background-color: #fce7f3;
    color: #9d174d;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: bold;
}

.priority-badge {
    display: inline-block;
    background-color: #fdf2f8;
    color: #be185d;
    border: 1px solid #f9a8d4;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: bold;
}

.logo {
    color: #be185d;
    font-size: 24px;
    margin-right: 20px;
}


.hero {
    text-align: center;
    padding: 50px 30px;
    background: linear-gradient(135deg, #fff7fb, #fce7f3);
}

.hero h1 {
    font-size: 42px;
}

.hero p {
    font-size: 18px;
}

section,
.habit-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

section:hover,
.habit-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(236, 72, 153, 0.18);
}

form {
    display: grid;
    gap: 8px;
}

form button {
    margin-top: 10px;
}

#clearHabitsBtn {
    margin-top: 20px;
    background: linear-gradient(135deg, #be123c, #fb7185);
}