/* CSS by Geoffrey Woytt */

/* Color Palette
#22B7F2
#ADD94E
#F2E307
#F2CB05
#F2EBDC
*/

/* GLOBAL (base) MOBILE FIRST */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    background-color: #F2EBDC;
    color: #1F1F1F;
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    /* Mobile-first grid layout */
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
        "header"
        "nav"
        "main"
        "footer";
}

a {
    color: #22B7F2;
    text-decoration: none;
    font-weight: 500;
}

a:hover, a:focus {
    color: #F2CB05;
    text-decoration: underline;
    text-underline-offset: 0.2rem;
}

header {
    grid-area: header;
}

nav {
    grid-area: nav;
}

main {
    grid-area: main;
}

footer {
    grid-area: footer;
}

header, nav, main, footer {
    padding: 1.25rem;
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    /* Underline */
    border-bottom: 3px solid #22B7F2;
    display: inline-block;
    padding-bottom: 0.25rem;
}

h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

h4 {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #22B7F2;
    margin-bottom: 0.5rem;
}

h4 a {
    color: #1F1F1F;
    text-decoration: none;
}

h4 a:hover, h4 a:focus {
    color: #22B7F2;
    text-decoration: underline;
    text-underline-offset: 0.25rem;
}

p {
    margin-bottom: 1rem;
}

p a {
    color: #22B7F2;
    font-weight: 500;
}

ul {
    padding-left: 1.25rem;
}

header {
    text-align: center;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

header p {
    font-weight: 500;
}

nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: #1F1F1F;
    font-weight: 500;
    position: relative;
}

nav a:hover, nav a:focus {
    color: #22B7F2;
    text-decoration: none;
}

nav a:hover::after, nav a:focus::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.1rem;
    width: 100%;
    height: 2px;
    background-color: #22B7F2;
    border-radius: 999px;
}

nav a.active {
    color: #22B7F2;
    font-weight: 600;
    position: relative;
}

nav a.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.1rem;
    width: 100%;
    height: 3px;
    background-color: #22B7F2;
    border-radius: 999px;
}

main {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
    padding-bottom: 3rem;
}

main > section {
    display: grid;
    gap: 1rem;
    background-color: rgba(255, 255, 255, 0.45);
    border-left: 5px solid #F2CB05;
    padding: 1.5rem;
    border-radius: 16px;
}

main > section > section {
    display: grid;
    gap: 0.5rem;
    background-color: transparent;
    border-left: none;
    padding: 0;
    border-radius: 0;
}

main > section > section + section {
    border-top: 1px solid rgba(31, 31, 31, 0.12);
    padding-top: 1rem;
}

li {
    margin-bottom: 0.35rem;
}

.skill-list {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-list li {
    background-color: #ADD94E;
    padding: 0.5rem 0.85rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0;
}

footer {
    text-align: center;
    font-size: 0.9rem;
    border-top: 2px solid rgba(31, 31, 31, 0.1);
}

/* Media query for desktop/tablet responsive web design */
@media (min-width: 768px) {
    header, nav, main, footer {
            padding-left: 2rem;
            padding-right: 2rem;
        }

        h1 {
            font-size: 3rem;
        }

        h2 {
            font-size: 2rem;
        }

        nav ul {
            flex-direction: row;
            justify-content: center;
            gap: 2rem;
        }
}