:root {
    --primary-color: #2d70bd;
    --text-color: #28292b;
    --bg-color: #d6d6d6;
    --bg-card-color: #f7f7f7;
    --transition: color 0.2s, background-color 0.5s ease-in-out;
    --border-radius: 0.4em;
    --skills-bar-length: 0%;
}

* {
    box-sizing: border-box;
}

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

img {
    max-width: 100%;
}

body {
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
    font-family: Calibri;
}

body.dark {
    --text-color: #d6d6d6;
    --bg-color: #0a0a0a;
    --bg-card-color: #131313;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 75px;
    padding: 0 1.5em;
    background-color: var(--bg-card-color);
    transition: var(--transition);
}

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

.toggle-theme {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.toggle-theme_icon {
    margin-right: 0.5em;
    width: 20px;
}

.toggle-theme_text {
    font-size: 0.8rem;
}

.colors {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 20px;
    width: 100px;
}

.colors_item {
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border: 1px solid #28292b;
    cursor: pointer;
}

.colors_item-blue {
    --primary-color: #2d70bd;
}

.colors_item-gold {
    --primary-color: #a88102;
}

.colors_item-red {
    --primary-color: #bb0b0b;
}

.colors_item-green {
    --primary-color: #249e0c;
}

.title {
    transition: var(--transition);
    text-align: center;
    color: var(--primary-color);
}

.main {
    display: grid;
    padding: 1.5em;
    gap: 1.5em;
}

@media screen and (min-width: 720px) {
    .main {
        grid-template-columns: min-content 1fr;
    }
}

.column {
    display: grid;
    gap: 0.5em;
}

@media screen and (min-width: 720px) {
    .column-right {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(3, min-content);
    }
}

.card {
    padding: 1em;
    background-color: var(--bg-card-color);
    border-radius: var(--border-radius);
}

.card_image-container {
    min-width: 320px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

#image-profile {
    border-radius: 50%;
}

.card_header {
    padding: 1em 0;
    text-align: center;
    font-family: Helvetica;
}

.card_title {
    margin: 0;
    font-size: 1.5rem;
}

.card_subtitle {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

.card_link {
    margin-bottom: 0.5em;
}

.card_text {
    font-size: 0.9rem;
    line-height: 1.6;
}

@media screen and (min-width: 760px) {
    .card-project {
        display: grid;
        grid-template-columns: min-content 1fr;
        grid-column: 1 / -1;
    }
}

.skills {
    padding: 1em 0;
}

.skills_header {
    display: flex;
    justify-content: space-between;
    width: 155px;
    margin-left: auto;
    font-size: 0.8rem;
}

.skills_tech {
    margin: 0;
    font-size: 0.8rem;
}

.skills_item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5em;
}

.skills_bar,
.skills_bar::after {
    position: relative;
    width: 155px;
    height: 8px;
    background-color: #888;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.skills_bar::after {
    content: '';
    position: absolute;
    left: -155px;
    background-color: var(--primary-color);
    transition: var(--transition);
    animation: skills-bar-fill 2s ease-in-out forwards;
}

.skills_bar-10::after {
    --skill-bar-length: 10%;
}

.skills_bar-20::after {
    --skill-bar-length: 20%;
}

.skills_bar-30::after {
    --skill-bar-length: 30%;
}

.skills_bar-40::after {
    --skill-bar-length: 40%;
}

.skills_bar-50::after {
    --skill-bar-length: 50%;
}

.skills_bar-60::after {
    --skill-bar-length: 60%;
}

.skills_bar-70::after {
    --skill-bar-length: 70%;
}

.skills_bar-80::after {
    --skill-bar-length: 80%;
}

.skills_bar-90::after {
    --skill-bar-length: 90%;
}

@keyframes skills-bar-fill {
    to {
        transform: translateX(var(--skill-bar-length));
    }
}

.project {
    position: relative;
}

@media screen and (min-width: 760px) {
    .project {
        margin-left: 2em;
    }
}

.project_tags {
    display: flex;
    justify-content: space-between;
    margin: 0.5em 0;
    font-size: 0.6rem;
    width: 225px;
    font-weight: bold;
}

@media screen and (min-width: 760px) {
    .project_tags {
        width: 315px;
        font-size: 0.7rem;
    }
}

.project_tag {
    padding: 0.2em 0.4em;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    color: var(--bg-color);
}

@media screen and (min-width: 760px) {
    .buttons {
        position: absolute;
        bottom: 1em;
    }
}

.buttons {
    display: flex;
    justify-content: space-between;
    width: 225px;
}

.button {
    width: 100px;
    line-height: 2.5;
    text-align: center;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.button-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

.button-ghost {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.icon {
    margin-right: 0.5em;
}

img.skill_icon {
    vertical-align: middle;
    margin-right: 0.5em;
}

#github_link {
    margin-left: -0.13em;
}