:root {
    --text: #ffffff;
    --muted: #ccd1d9;
    --label: #a9aeb7;
    --ease: cubic-bezier(.16, 1, .3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    background-color: #04060f; /* Matches the photo's darkest tone, shows before the image loads */
    color: var(--text);
    font-family: 'Newsreader', Georgia, 'Times New Roman', serif;
    /* Serif needs a touch more size and leading than the sans it replaced,
       and holds up better on the photo at these weights */
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    /* Native cursor becomes a small dot; the trailing ring is drawn separately */
    cursor: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='10' cy='10' r='2' fill='%23ffffff'/%3E%3C/svg%3E") 10 10, auto;
}

::selection {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* ---------- Background ---------- */

/* Oversized so the drift and parallax never expose an edge */
.sky-parallax,
.sky-scrim {
    position: fixed;
    top: -4%;
    left: -4%;
    width: 108%;
    height: 108%;
    z-index: -2;
    will-change: transform;
}

.sky {
    width: 100%;
    height: 100%;
    background-image: url("nightsky-bg.jpg");
    background-size: cover;
    background-position: center;
    transform: scale(1.12);
    /* Slow rotation reads as the real sky turning about the celestial pole.
       Kept linear so the motion never stalls at the ends of the cycle. */
    animation: drift 45s linear infinite alternate;
    will-change: transform;
}

@keyframes drift {
    from { transform: scale(1.12) translate3d(0, 0, 0) rotate(0deg); }
    to   { transform: scale(1.22) translate3d(-2.5%, 1.6%, 0) rotate(1.4deg); }
}

.sky-scrim {
    z-index: -1;
    /* Only enough to guarantee legibility over the brighter star clusters */
    background:
        radial-gradient(ellipse at 30% 30%, rgba(4, 6, 15, 0.55) 0%, rgba(4, 6, 15, 0.22) 55%, rgba(4, 6, 15, 0.42) 100%);
    pointer-events: none;
}

.twinkle {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ---------- Cursor ---------- */

.cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 1px solid var(--text);
    pointer-events: none;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    will-change: transform;
    opacity: 0; /* Revealed by JS on first pointer move */
    transition: width .4s var(--ease),
                height .4s var(--ease),
                background .4s var(--ease),
                border-color .4s var(--ease),
                opacity .3s ease;
}

.cursor-ring.is-visible {
    opacity: 1;
}

/* Swells over interactive targets. Dormant today — the page has no links yet. */
.cursor-ring.is-hot {
    width: 34px;
    height: 34px;
    background: var(--text);
    border-color: transparent;
}

/* ---------- Content ---------- */

.page {
    position: relative;
    max-width: 560px;
    margin: 0 auto;
    /* Tuned so the whole page — through the contact line — fits a 1440x900
       laptop without scrolling. Loosen only if content is removed. */
    padding: 9vh 32px 7vh;
}

h1 {
    font-size: 1.85rem;
    font-weight: 500;
    letter-spacing: 0;
    line-height: 1.2;
}

.tagline {
    color: var(--muted);
    margin-top: 6px;
    font-style: italic;
}

.block {
    margin-top: 38px;
}

.label {
    color: var(--label);
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 14px;
}

.entries {
    list-style: none;
}

.entries li {
    margin-bottom: 8px;
}

/* Project list carries a description line, so entries need room to breathe */
.entries--detailed li {
    margin-bottom: 14px;
}

.blurb {
    display: block;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.45;
    max-width: 46ch;
}

.contact a {
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid rgba(204, 209, 217, 0.45);
    padding-bottom: 1px;
    transition: color .3s ease, border-color .3s ease;
}

.contact a:hover,
.contact a:focus-visible {
    color: var(--text);
    border-bottom-color: var(--text);
}

/* Org/institution reads first; the role sits back a step */
.role {
    color: var(--muted);
}

.role::before {
    content: " — ";
    color: var(--label);
}

@media (max-width: 640px) {
    .page {
        padding: 12vh 24px 10vh;
        margin: 0;
    }

    .block {
        margin-top: 44px;
    }

    /* Stack the role under the org so long degree lines stay readable */
    .role {
        display: block;
    }

    .role::before {
        content: none;
    }
}

/* ---------- Accessibility / input-mode fallbacks ---------- */

/* No custom cursor on touch devices — there is no pointer to track */
@media (pointer: coarse) {
    body {
        cursor: auto;
    }

    .cursor-ring {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    body {
        cursor: auto;
    }

    .sky {
        animation: none;
    }

    .cursor-ring,
    .twinkle {
        display: none;
    }
}