:root {
    --invis: #00000000;
    --white: #ffffff;
    --grey-100: #fafafa;
    --grey-150: #F0F0F0;
    --grey-200: #d8d8d8;
    --grey-300: #adadad;
    --grey-400: #777777;
    --grey-500: #575757;
    --grey-600: #202020;
    --grey-600-25:#20202025;
    --grey-600-75:#20202075;
    --black: #000000;
    --black-25: #00000025;
    --black-50: #00000050;
    
    --red-100: #ffecef;
    --red-200: #db4646;
    --red-300: #da2d2d;
    --red-400: #b82525;
    --red-500: #7e1818;
    --red-1000: #ff0000;

    --blue-050: #43aaff;
    --blue-100: #597ffc;
    --blue-200: #3b68fc;
    --blue-300: #355bda;
    --blue-400: #2c4cb6;
    --blue-500: #0046c9;

    --green-050: #76dba9;
    --green-100: #25d87e;
    --green-200: #169747;
    --green-300: #137c3b;

    --purple-050: #a767e2;
    --purple-100: #9649dd;
    --purple-200: #7711d6;
    --purple-300: #6917b6;
}


/* 
--------------------------------------------------------------
GENERAL STYLING
--------------------------------------------------------------
*/

* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    border: none;
    outline: none;
}

html {
    font-family: "Inter";

    min-height: 100vh;
    width: 100%;
    max-width: 100vw;
}

body {
    display: grid;
    grid-template-rows: auto 1fr auto;
    justify-items: center;

    min-height: 100vh;
    color: var(--grey-600);

    background-color: var(--grey-100);
}

main {
    display: flex;
    flex-direction: column;
    gap: 40px;

    width: 100%;
    max-width: 1200px;
    padding: 40px 20px 80px 20px;
}

li {
    list-style: none;
}

button {
    cursor: pointer;
}

input,
button,
a {
    min-height: 40px;
    min-width: 40px;
}

/* 
GENERAL STYLING END
*/

/* 
--------------------------------------------------------------
SHARED STYLING
--------------------------------------------------------------
*/
.back-link {
    align-self: start;
    display: flex;
    align-items: center;
    justify-self: start;

    color:var(--grey-400);
    text-decoration: none;
}
.back-link:hover,
.back-link:focus {
    color: var(--grey-300);
}
.back-link:active {
    color: var(--grey-500);
}

.card-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.spaced-horizontal-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

.button-container {
    display: flex;
    gap: 4px;
}

.item-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;

    height: 40px;
    width: 40px;
    padding: 10px;
    
    border-bottom: 2px solid var(--invis);
    border-radius: 4px;
    box-shadow: 0 2px 2px var(--black-50);
}
.item-action-btn:active {
    box-shadow: 0 1px 2px var(--black-50);
}

.item-action-icon {
    width: 100%;
    height: 100%;
}

.action-btn {
    align-self: start;
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: 40px;
    min-width: 40px;
    padding: 8px 16px;

    color: inherit;
    font-size: 1rem;
    text-decoration: none;

    background-color: var(--grey-150);
    border-bottom: 2px solid var(--grey-200);
    border-radius: 4px;
    box-shadow: 0 2px 2px var(--black-50);
}
.action-btn:hover,
.action-btn:focus {
    background-color: var(--grey-100);
}
.action-btn:active {
    background-color: var(--grey-200);
    border-color: var(--grey-300);
    box-shadow: 0 1px 2px var(--black-50);
}

.modify-btn {
    color: var(--white);

    background-color: var(--blue-200);
    border-color: var(--blue-300);
}
.modify-btn:hover,
.modify-btn:focus {
    background-color: var(--blue-100);
}
.modify-btn:active {
    background-color: var(--blue-300);
    border-color: var(--blue-400);
}

.constructive-btn {
    color: var(--white);
    
    background-color: var(--green-100);
    border-color: var(--green-200);
}
.constructive-btn:hover,
.constructive-btn:focus {
    background-color: var(--green-050);
}
.constructive-btn:active {
    background-color: var(--green-200);
    border-color: var(--green-300);
}

.destructive-btn {
    color: var(--white);

    background-color: var(--red-300);
    border-color: var(--red-400);
}
.destructive-btn:hover,
.destructive-btn:focus {
    background-color: var(--red-200);
}
.destructive-btn:active {
    background-color: var(--red-400);
    border-color: var(--red-500);
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 12px;

    margin-top: 60px;
}

.text-icon-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 
SHARED STYLING END
*/

/* 
--------------------------------------------------------------
CARD STYLING
--------------------------------------------------------------
*/

.card {
    display: flex;
    flex-direction: column;
    gap: 16px;

    padding: 16px;

    text-decoration: none;
    color: inherit;

    background-color: var(--white);
    border-bottom: 2px solid var(--grey-150);
    border-radius: 4px;
    box-shadow: 0 4px 8px var(--grey-600-25);
}
.card:hover,
.card:focus {
    border-color: var(--blue-050);
}
.card:active {
    background-color: var(--grey-100);
    box-shadow: 0 2px 4px var(--grey-600-75);
}

.card-title {
    font-weight: 600;
    font-size: 1.6rem;
}

.card-description,
.page-form-context,
.page-description {
    color: var(--grey-400);
    font-size: 1.2rem;
}

.status-icon {
    height: 30px;
}

/* 
CARD STYLING END
*/

/* 
--------------------------------------------------------------
PAGE FORM STYLING
--------------------------------------------------------------
*/


.page-form {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-width: 600px;
}

.page-form-field-guidelines {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.page-form-field-guideline {
    padding-left: 8px;

    color: var(--grey-400);

    list-style-type: disc;
    list-style-position: inside;
}

.page-description,
.page-form-context {
    margin-top: -28px;
}

.page-form-field-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.page-form-label {
    font-weight: 600;
}

.form-input {
    padding: 4px 8px;

    width: 100%;

    font-size: 1rem;
    font-weight: 500;

    background-color: var(--white);
    border: 2px solid  var(--grey-200);
    border-radius: 4px;

    overflow-x: hidden;
}
.form-input:focus {
    outline: 2px solid var(--blue-500);
}

.invalid-form-input {
    border-color: var(--red-1000);
    background-color: var(--red-100);
}
.invalid-form-input:hover,
.invalid-form-input:focus {
    border-color: var(--red-1000);
}

/* 
PAGE FORM STYLING END
*/