/* Page Styling */
* {
  /* outline: 1px solid red; */
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}

:root {
  --primary-color: black;
  --secondary-color: orange;
  --text-color: white;
  --gap: 16px;
}

html {
    font-size: 62.5%;
    box-sizing: border-box;
}


/* ==================================================================================================================================
   MOBILE VIEW - DEFAULT
   ================================================================================================================================== */
body {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    color: var(--text-color);
    background-color: var(--primary-color);
}

/* ==================================================== PAGE LAYOUT ============================================================= */
main {
    width: 100%;
    background-color: var(--primary-color);
    box-shadow: 0 4rem 6rem rgba(0, 0, 0, 0.8);
    border-radius: 9px;
    overflow: hidden;
    display: flex;
    flex-direction: column; /* stacked on mobile */
}

.habitGrouping,
.habits-list {
    padding: 2.4rem;  /* lighter padding on mobile*/
    display: flex;
    flex-direction: column;
    transition: all 0.75s;
    gap: var(--gap);
    border: 1px solid var(--secondary-color);
}

.urgentAndImportant, .importantNotUrgent, .urgentNotImportant, .notUrgentNotImportant {
    margin-top: 25px;
}

.addHabit {
    display: flex;
    flex: 1 1 0;
    justify-content: space-between;
}

input {
    width: 70%;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1.6rem;
    margin-right: 10px;
}

button {
    padding: 1rem 1rem;
    border: none;
    border-radius: 4px;
    background-color: var(--secondary-color);
    color: var(--text-color);
    font-size: 1.6rem;
    cursor: pointer;
}

.habitGrouping h1 {
    margin-bottom: 0px;
}

h1 {
    font-size: 3.2rem;
    margin-bottom: var(--gap);
    color: var(--secondary-color);
    text-align: center;
}

.clear-all-btn {
    background-color: red;
    color: white;
    width: 100%;
    margin-top: 8px;
}

.habits-list h1 {
    margin-top: 22px;
}

h2 {
    font-size: 1.6rem;
}

.habits-list ul {
    list-style: none;
}

.habits-list li {
    max-height: 50px;
    background: #1a1a1a;
    padding: 12px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    border-left: 4px solid var(--secondary-color);
    border-radius: 6px;
    font-size: small;
}

.delete-btn {
    background: #ff4444;
    border: none;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
}

.delete-btn:hover {
    background-color: var(--secondary-color);
}

/* ===========================================================================================
    DESKTOP VIEW - SUPPORT FOR 600PX AND ABOVE
    ========================================================================================== */
@media (min-width: 600px) {

    body {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    }

    /* ========================================================
    DESKTOP PAGE LAYOUT                                                
    ======================================================== */
    main {
        width: 100rem;
        height: 60rem;
        flex-direction: row; /* side by side on desktop */
        border: 2px solid var(--secondary-color);
    }

    .habitGrouping, .habits-list {
        flex: 50%;
        padding: 4rem;   /* more breathing room on desktop */
        min-height: 100%;
    }

    .habitGrouping {
        border-right: 1px solid var(--text-color);
        border-bottom: none;
    }

    .habits-list {
        border: none;   /* main border comes from <main> on desktop */
        padding: 20px;
    }
}