/* Landing page of the Hal9000 Lab website */

:root {
    --ink: rgb(50, 50, 50);
    --muted: rgb(100, 100, 100);
    --accent: rgb(70, 0, 199);
    --dark: rgb(23, 19, 34);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Lucida Grande", Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: rgb(247, 247, 250);
}

h1, h2, h3 {
    font-family: 'Gill Sans', 'Gill Sans MT', 'Calibri', 'Trebuchet MS', sans-serif;
}

/* header */
header {
    text-align: center;
    padding: 4.5em 1.2em 3em;
    background: linear-gradient(160deg, rgb(255, 255, 255) 0%, rgb(232, 228, 248) 100%);
    border-bottom: 1px solid rgb(225, 225, 235);
}
header > h1 {
    margin: 0;
    font-size: 3em;
    color: var(--ink);
}
header > p {
    max-width: 34em;
    margin: 1em auto 0;
    font-size: 1.15em;
    line-height: 1.5em;
    color: var(--muted);
}
header > p.affil {
    margin-top: 0.6em;
    font-size: 0.95em;
}

/* projects */
main {
    max-width: 960px;
    margin: auto;
    padding: 3em 1.2em 4em;
}
main > h2 {
    margin: 0 0 1em;
    font-size: 1.6em;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 24px;
}

a.project {
    display: flex;
    flex-direction: column;
    padding: 1.6em;
    text-decoration: none;
    color: inherit;
    background: white;
    border: 1px solid rgb(225, 225, 235);
    border-top: 5px solid var(--accent);
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}
a.project:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(23, 19, 34, 0.12);
}
a.project.survey {
    border-top-color: rgb(179, 27, 27);
}
a.project.ostia {
    border-top-color: rgb(30, 120, 140);
}

a.project > h3 {
    margin: 0;
    font-size: 1.35em;
    line-height: 1.25em;
}
a.project > p {
    flex-grow: 1;
    margin: 0.9em 0 1.1em;
    font-size: 0.98em;
    line-height: 1.45em;
    color: var(--muted);
}
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 1.2em;
}
.tags > span {
    padding: 2px 10px;
    font-size: 0.78em;
    color: rgb(82, 82, 82);
    background: rgb(238, 238, 243);
    border-radius: 10px;
}
.open {
    font-weight: bold;
    color: var(--accent);
}
a.project:hover .open {
    text-decoration: underline;
}

/* footer */
footer {
    padding: 22px 15px;
    text-align: center;
    background-color: var(--dark);
}
footer > p {
    margin: 0;
    font-size: 9pt;
    line-height: 1.5em;
    color: white;
}

@media (max-width: 600px) {
    header > h1 {
        font-size: 2.2em;
    }
}