:root {
    --primary-color: #77BEF0;
    --secondary-color: #FFCB61;
    --tertiary-color: #FF894F;
    --fourth-color: #EA5B6F;

    --dark-primary-color: #070F2B;
    --dark-secondary-color: #1B1A55;
    --dark-tertiary-color: #535C91;
    --dark-fourth-color: #9290C3;

    --text-color: black;
    --font-family-header: "Bungee Tint";
    --font-family-body: "DM Sans";
    --font-family-clock: "Outfit";
    --font-size-header: 6em;
    --font-size-clock: 5rem;
    --font-size-body: 1.4em;
    --font-size-footer: 1.65em;

}

html {
    font-size: 62.5%;
}

body {
    background: var(--secondary-color);
    background: linear-gradient(270deg, var(--secondary-color) 34%, var(--tertiary-color) 100%);
    padding: 20px;
}


body.dark {
    --primary-color: #070F2B;
    --secondary-color: #1B1A55;
    --tertiary-color: #535C91;
    --fourth-color: #9290C3;


    --dark-primary-color: #77BEF0;
    --dark-secondary-color: #FFCB61;
    --dark-tertiary-color: #FF894F;
    --dark-fourth-color: #EA5B6F;

    --text-color: white;
}

body.dark #dark-mode-btn #moon-icon {
    display: none;
}

body.dark #dark-mode-btn #sun-icon {
    display: inherit;
}

body.dark #dark-mode-btn {
    padding: 5px 5px 5px 20px;
}

body.dark #dark-mode-btn:hover {
    background: var(--dark-secondary-color);
}

body.dark #dark-mode-btn:hover #sun-icon path {
    fill: var(--dark-fourth-color);
}

body.dark #main-frame {
    box-shadow: rgba(24, 30, 30, 0.34) 12px 12px 12px;
}

body.dark #clock-container {
    background-color: var(--secondary-color);
}

body.dark #clock-container {
    color: var(--text-color);
    font-weight: 400;
}

body.dark #reset-btn:hover #erase-icon path{
    fill: var(--text-color);
}

header h1{
    text-align: center;
    font-size: var(--font-size-header);
    font-family: var(--font-family-header), sans-serif;
    margin: 20px auto 20px auto;
}

#main-frame {
    padding: 20px;
    background-color: var(--primary-color);
    max-width: 720px;
    margin: 10px auto 3px;
    border-radius: 10px;
    box-shadow: rgba(119, 136, 153, 0.34) 12px 12px 12px;
}


#btn-section {
    margin: 5px auto 10px auto;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    gap: 15px;
}

#dark-mode-btn{
    background-color: var(--dark-primary-color);
    display: flex;
    width: fit-content;
    padding: 5px 20px 5px 5px;
    border-radius: 35px;
    border: none;
}
#dark-mode-btn:hover{
    cursor: pointer;
    transition: all ease 0.3s;
    background-color: var(--dark-fourth-color);
    color: #070F2B;
}

#dark-mode-btn:hover #moon-icon path{
    fill: #070F2B;
    transition: fill 0.3s ease;
}

#moon-icon {
    transform: rotate(340deg);
    width:  3rem;
}

#sun-icon {
    width: 3rem;
}


#reset-btn {
    background-color: white;
    border: none;
    border-radius: 30px;
    padding: 3px 10px 3px 10px;
}

#reset-btn #erase-icon {
    width: 3rem;
}

#reset-btn:hover {
    cursor: pointer;
    transition: all ease 0.3s;
    background-color: var(--tertiary-color);
}

#reset-btn:hover #erase-icon {
    fill: white;
}

#clock-container {
    padding: 30px;
    height: fit-content;
    max-width: 700px;
    background-color: whitesmoke;
    border-radius: 10px;
    margin: auto;

    font-family: var(--font-family-body), sans-serif;
    font-size: var(--font-size-body);
}


#city-selector {
    display: block;
    width: 100%;
    margin: 20px auto;
    padding: 10px;
    font-family: var(--font-family-body), sans-serif;
    font-size: var(--font-size-body);
    border-radius: 6px;
}

hr {
    margin: 10px auto;
    border: solid 2px var(--tertiary-color);
}

.city-time {
    font-size: var(--font-size-clock);
    font-family: var(--font-family-clock), sans-serif;
}
.city-name {
    font-size: 3.4rem;
    font-weight: 900;
    margin: 1rem 1rem 1rem 0;
}
.city-date {
    font-size: var(--font-size-body);
}

.city-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.city-container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}



footer {
    text-align: center;
    font-size: var(--font-size-footer);
    font-family: var(--font-family-body), sans-serif;
    color: var(--text-color);
}

footer a {
    color: var(--fourth-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
    color: var(--dark-fourth-color);
}