:root {
    --main-blue: #297892;
    --light-bg: #f8f9fa;
    --text-dark: rgb(40, 40, 40);
    --card-radius: 6px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-bg, #f0f0f0);
    color: var(--text-dark, black);
    margin-top: 0;
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    max-width: 960px;
    padding: 0 20px 30px 20px;
}

h1, h2 {
    color: #1a1a2e;
}

nav {
    background-color: #1a1a2e;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav-title {
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

nav a {
    text-decoration: none;
    color: #ccc;
    display: inline-block;
}

nav a:hover {
    color: white;
}

nav a:active {
    color: color(srgb 0.55 0.85 0.95);
}

header {
    background-color: hsl(220, 80%, 95%);
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    border-style: solid;
    border-color: var(--main-blue, navy);
    border-width: 2px;
    border-radius: var(--card-radius, 4px);
    margin-bottom: 1.5rem;
    margin-top: 1.5rem;
    position: relative;
}

h1 {
    font-size: 2em;
    text-align: center;
    margin: 0 0 0.25em 0;
}

/* select just the direct children */
header > p {
    text-align: center;
    color: rgb(90, 90, 110);
    font-size: 0.9em;
    margin: 0.2em 0;
}

main section {
    margin: 0 0 1rem 0;
}

hr + section {
    padding-top: 0.75rem;
}

section ~ section {
    border-top: 1px solid #e0e0e0;
}

#attendees {
    background-color: color-mix(in srgb, var(--main-blue, blue) 15%, white);
    padding: 1rem;
    border-radius: var(--card-radius, 4px);
}

section:has(ol) {
    background-color: lightyellow;
    padding: 1rem;
    border-radius: var(--card-radius, 4px);
}

#notes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

#notes > h2 {
    grid-column: 1 / -1;
}

#notes > details {
    grid-column: 1 / -1;
}

div.note-item {
    background-color: white;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-left: 4px solid var(--main-blue, blue);
    border-radius: 0 var(--card-radius, 4px) var(--card-radius, 4px) 0;
    min-width: 0;
}

.note-item {
    & b {
        color: var(--main-blue, blue);
    }

    & span {
        display: inline;
        color: #888;
    }
}

.hidden-note {
    display: none;
}

input[type=text] {
    border: 1px solid #ccc;
    padding: 4pt 8pt;
    border-radius: 4px;
    display: block;
    margin-bottom: 0.5rem;
}

#media img {
    width: 100%;
    max-width: 500px;
    min-width: 100px;
    height: auto;
    border-radius: var(--card-radius, 4px);
    display: block;
}

audio, video {
    display: block;
    margin: 0.75rem 0;
    width: 100%;
    max-width: 500px;
}

footer {
    margin: 2rem 0 0 0;
    padding-top: 1rem;
    border-top: 2px solid #ccc;
    position: relative;
}

fieldset {
    border: 1px solid #ccc;
    border-radius: var(--card-radius, 4px);
    padding: 1rem;
    width: 100%;
    max-width: 450px;
    min-width: 220px;
}

legend {
    font-weight: bold;
    padding: 0 0.5rem;
    margin-bottom: 0.5cm;
}

button[type=submit] {
    background-color: var(--main-blue, blue);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--card-radius, 4px);
    cursor: pointer;
    display: inline-block;
    margin-top: 0.5rem;
}

button[type=submit]:hover {
    background-color: #1f6070;
}

button[type=submit]:active {
    background-color: #174a57;
}

@media (max-width: 768px) {
    #notes {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    #notes {
        grid-template-columns: 1fr;
    }

    nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    h1 {
        font-size: 1.5em;
    }

    body {
        padding: 0 10px 20px 10px;
    }
}