.activity-section { padding-block: clamp(4.5rem, 8vw, 7rem); scroll-margin-top: 5rem; }
.activity-heading { display: flex; align-items: end; justify-content: space-between; gap: 3rem; margin-bottom: 2.75rem; }
.activity-heading h2 { margin-top: 1rem; font-size: clamp(3rem, 6.4vw, 5.5rem); }
.activity-intro { max-width: 23rem; margin: 0 0 .15rem; color: #a8aca6; font-size: .95rem; line-height: 1.7; }
.activity-panel { border: 1px solid var(--line-dark); background: #101211; }
.activity-toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.25rem; padding: 1.6rem 1.75rem; border-bottom: 1px solid var(--line-dark); }
.activity-stats { display: flex; gap: 2rem; }
.activity-stat { display: flex; flex-direction: column; gap: .1rem; }
.activity-stat strong { font-size: 1.8rem; font-weight: 600; letter-spacing: -.06em; line-height: 1.1; }
.activity-stat span, .activity-label { color: #a8aca6; font-family: "DM Mono", monospace; font-size: .65rem; letter-spacing: .02em; }
.activity-controls { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.activity-select { color: var(--paper); background: #191c1a; border: 1px solid #454943; border-radius: 0; min-height: 2.5rem; max-width: 13rem; padding: .5rem 1.75rem .5rem .75rem; font: .72rem "DM Mono", monospace; }
.activity-section button { color: inherit; cursor: pointer; font-family: inherit; }
.activity-section button:focus-visible, .activity-select:focus-visible, .activity-section summary:focus-visible { outline: 2px solid #80acff; outline-offset: 3px; }
.activity-calendar { padding: 1.6rem 1.75rem .8rem; }
/* Months wrap in the document: there are no nested scrolling regions. */
.calendar-year + .calendar-year { margin-top: 2rem; padding-top: 1.65rem; border-top: 1px solid #293029; }
.calendar-year-heading { position: sticky; top: calc(4.75rem + 1px); z-index: 10; display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1rem; padding-block: 1rem; background: #101211; border-bottom: 1px solid #293029; }
.calendar-year-heading h3 { font-size: 1.25rem; line-height: 1; letter-spacing: -.04em; margin: 0; font-weight: 500; }
.calendar-year-note { color: #8f998e; font-size: .72rem; }
.calendar-year-total { color: #a8aca6; font: .62rem "DM Mono", monospace; margin-left: auto; white-space: nowrap; }
.calendar-month-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.7rem 2rem; align-items: start; }
.calendar-month { min-width: 0; border-top: 1px solid #293029; padding-top: 1.1rem; }
.calendar-month-heading { display: flex; flex-wrap: wrap; gap: .4rem .75rem; align-items: baseline; justify-content: space-between; margin-bottom: 1rem; }
.calendar-month-name { margin: 0; color: #d9e0d5; font-size: .9rem; font-weight: 500; }
.calendar-month-overview { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 1rem; align-items: start; margin-bottom: 1rem; }
.calendar-month-recap { min-width: 0; }
.calendar-month-days { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 3px; align-content: start; }
.calendar-month-days > * { aspect-ratio: 1; min-width: 0; }
.activity-coverage { color: #9da69c; font-size: .74rem; margin: 0; padding: 1rem 1.75rem 0; line-height: 1.65; }
.activity-jumps { display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; padding: .85rem 1.75rem 0; font: .65rem "DM Mono", monospace; }
.activity-jumps a { color: #91b8ff; text-decoration: none; padding-block: .25rem; }
.activity-jumps a:hover { text-decoration: underline; text-underline-offset: .2em; }
#activity-calendar, #activity-detail, #activity-directory { scroll-margin-top: 5rem; }
.activity-calendar-caption { padding: 1rem 1.75rem 0; margin: 0; color: #8f998e; font-size: .72rem; line-height: 1.6; }
.activity-directory { border-top: 1px solid var(--line-dark); padding: 2rem 1.75rem; }
.activity-subheading { margin-bottom: 1.8rem; }
.activity-subheading h3 { margin: 0 0 .6rem; font-size: clamp(1.65rem, 3vw, 2.3rem); font-weight: 500; letter-spacing: -.05em; }
.activity-subheading p { max-width: 46rem; margin: 0; color: #a8aca6; font-size: .8rem; line-height: 1.7; }
.month-total { display: block; color: #a8aca6; font: .6rem "DM Mono", monospace; }
.month-comparison { display: block; margin-top: .6rem; color: #8f998e; font-size: .63rem; line-height: 1.5; }
.month-annotation { margin: 0; color: #bdc5b9; font-size: .72rem; line-height: 1.5; overflow-wrap: anywhere; }
.month-stack { display: flex; height: .5rem; width: 100%; background: #222822; }
.month-segment { display: block; height: 100%; flex-shrink: 0; }
.month-projects { display: grid; grid-template-columns: 1fr; gap: .4rem; list-style: none; margin: .85rem 0 0; padding: 0; }
.month-project { display: flex; gap: .45rem; align-items: baseline; min-width: 0; max-width: 100%; font-size: .68rem; color: #c5cfc1; }
.project-color { display: inline-block; width: .5rem; height: .5rem; flex-shrink: 0; }
.month-project-name { overflow-wrap: anywhere; }
.website-link { color: inherit; text-decoration: underline; text-decoration-color: #657561; text-underline-offset: .2em; }
.website-link::after { content: " ↗"; color: #91b8ff; white-space: nowrap; }
.website-link:hover { color: #91b8ff; text-decoration-color: currentColor; }
.website-link:focus-visible { outline: 2px solid #80acff; outline-offset: 3px; }
.month-project-value { margin-left: auto; font: .6rem "DM Mono", monospace; color: #939e8e; white-space: nowrap; }
.project-inventory { columns: 2; column-gap: 2.5rem; }
.inventory-project { padding-block: 1.25rem; border-top: 1px solid #293029; min-width: 0; break-inside: avoid; }
.inventory-heading { display: flex; align-items: baseline; gap: .6rem; }
.inventory-heading h4 { margin: 0; font-size: .9rem; font-weight: 500; overflow-wrap: anywhere; }
.inventory-count { margin-left: auto; font: .62rem "DM Mono", monospace; color: #9da69c; white-space: nowrap; }
.activity-chapters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; padding: 1.7rem; border-top: 1px solid var(--line-dark); }
.activity-chapters[hidden] { display: none; }
.activity-chapter { border-left: 2px solid #3478f6; padding-left: .85rem; min-width: 0; }
.chapter-date { color: #91b8ff; font: .63rem "DM Mono", monospace; margin: 0 0 .7rem; }
.activity-chapter h4 { margin: 0 0 .55rem; font-size: 1rem; line-height: 1.3; font-weight: 500; letter-spacing: -.025em; }
.chapter-description { margin: 0 0 .9rem; font-size: .75rem; line-height: 1.6; color: #a8aca6; }
.chapter-count { display: block; color: #8f998e; font: .6rem "DM Mono", monospace; line-height: 1.6; }
.calendar-day { position: relative; min-width: 0; padding: 0; border: 1px solid transparent; border-radius: 2px; background: #222822; }
.calendar-day[data-level="1"], .heat-key[data-level="1"] { background: #19345d; }
.calendar-day[data-level="2"], .heat-key[data-level="2"] { background: #2355a0; }
.calendar-day[data-level="3"], .heat-key[data-level="3"] { background: #3478f6; }
.calendar-day[data-level="4"], .heat-key[data-level="4"] { background: #8ab5ff; }
.calendar-day:hover, .calendar-day[aria-pressed="true"] { border-color: #e5f0ff; outline: 1px solid #e5f0ff; outline-offset: 1px; z-index: 1; }
.calendar-day.is-week { box-shadow: inset 0 0 0 1px #97b4e5; }
.calendar-spacer { visibility: hidden; }
.calendar-footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .5rem 1.75rem 1.25rem; color: #888f87; font: .62rem "DM Mono", monospace; }
.heat-legend { display: flex; align-items: center; gap: .3rem; white-space: nowrap; }
.heat-key { width: .65rem; height: .65rem; border-radius: 1px; background: #222822; }
.activity-detail { display: grid; grid-template-columns: .9fr 1.1fr; border-top: 1px solid var(--line-dark); }
.activity-period { padding: 1.7rem; border-right: 1px solid var(--line-dark); min-width: 0; }
.period-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.period-switch { display: flex; border: 1px solid #454943; padding: 3px; }
.period-switch button { border: 0; background: transparent; padding: .35rem .75rem; font-size: .7rem; color: #a8aca6; }
.period-switch button[aria-pressed="true"] { background: var(--paper); color: var(--ink); }
.period-arrows { display: flex; gap: .35rem; }
.period-arrows button { width: 2rem; height: 2rem; border: 1px solid #454943; background: transparent; }
.activity-section button:disabled { cursor: default; opacity: .3; }
.period-title { margin: 1.35rem 0 .35rem; font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 500; letter-spacing: -.055em; line-height: 1.25; }
.period-subtitle { margin: 0; color: #a8aca6; font-size: .8rem; }
.period-days { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .3rem; margin-top: 1.6rem; }
.period-day { display: flex; flex-direction: column; align-items: center; gap: .35rem; border: 1px solid #303630; padding: .55rem .1rem; background: transparent; }
.period-day small { color: #959d94; font: .58rem "DM Mono", monospace; }
.period-day span { font-size: .75rem; }
.period-day strong { font: .65rem "DM Mono", monospace; color: #91b8ff; }
.period-day[aria-pressed="true"] { border-color: #739eff; background: #17263e; }
.activity-projects { padding: 1.7rem; min-width: 0; }
.activity-projects-title { display: flex; justify-content: space-between; margin-bottom: 1.2rem; color: #a8aca6; font: .65rem "DM Mono", monospace; }
.activity-project-list { padding-right: .4rem; }
.activity-project-row { display: grid; grid-template-columns: minmax(0, 1fr) 6rem 3rem; align-items: center; gap: 1rem; padding: .65rem 0; border-bottom: 1px solid #242a24; }
.activity-project-row:first-child { padding-top: 0; }
.activity-project-name { overflow-wrap: anywhere; font-size: .85rem; text-decoration: none; }
a.activity-project-name:hover { color: #91b8ff; }
.activity-bar-track { display: block; height: .35rem; background: #222a22; }
.activity-bar { display: block; height: 100%; background: #3478f6; }
.activity-project-row[data-private="true"] .activity-bar { background: #747f73; }
.activity-project-count { text-align: right; color: var(--paper-dim); font: .72rem "DM Mono", monospace; }
.activity-empty { margin: 1rem 0; color: #a8aca6; font-size: .9rem; }
.activity-loading { padding: 2rem; margin: 0; color: #a8aca6; }
.activity-notes { display: flex; justify-content: space-between; flex-wrap: wrap; align-items: baseline; gap: .6rem 2rem; margin-top: 1rem; color: #888f87; font-size: .72rem; }
.activity-notes > p { margin: 0; }
.activity-notes details { max-width: 48rem; }
.activity-notes summary { cursor: pointer; text-underline-offset: .2em; }
.activity-notes details p { line-height: 1.7; }
.activity-notes a { color: #b5c9ec; text-underline-offset: .2em; }
.activity-tooltip { position: fixed; z-index: 30; max-width: 280px; pointer-events: none; border: 1px solid #566157; background: #1a211b; padding: .65rem .8rem; font-size: .72rem; box-shadow: 0 5px 24px #0008; }
.activity-tooltip[hidden] { display: none; }
.project-status.project-new { color: #2457ad; }
.project-list article.project:hover { background: transparent; padding-inline: 0; }
.project:not(a) .project-arrow { color: #70756d; font: .65rem "DM Mono", monospace; text-transform: uppercase; }
#work { scroll-margin-top: 4rem; }
@media (max-width: 1000px) {
  .calendar-month-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
  .activity-chapters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .project-list .project-arrow { grid-column: 3; grid-row: 1; }
  .activity-heading { align-items: start; flex-direction: column; gap: 1.4rem; }
  .activity-intro { max-width: 35rem; }
  .activity-detail { grid-template-columns: 1fr 1fr; }
  .activity-project-row { grid-template-columns: minmax(0, 1fr) 3rem; gap: .5rem; }
  .activity-bar-track { display: none; }
}
@media (max-width: 650px) {
  .activity-jumps { padding-inline: 1.25rem; }
  .activity-directory { padding: 1.5rem 1.25rem; }
  .activity-calendar-caption { padding-inline: 1.25rem; }
  .calendar-month-overview { grid-template-columns: 92px minmax(0, 1fr); }
  .project-inventory { columns: 1; }
  .site-header .nav { gap: 1rem; }
  .calendar-month-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .calendar-year-heading { top: calc(4rem + 1px); gap: .5rem; flex-wrap: wrap; }
  .calendar-year-note { order: 3; flex-basis: 100%; font-size: .68rem; }
  .calendar-year-total { font-size: .58rem; }
  .activity-coverage { padding-inline: 1.25rem; font-size: .68rem; }
  .activity-chapters { padding: 1.25rem; gap: 1.5rem; }
  .activity-select:first-child { flex-basis: 100%; }
  .activity-chapter h4 { font-size: .9rem; }
  .activity-tooltip { max-width: min(280px, calc(100vw - 16px)); }
  .activity-toolbar { padding: 1.25rem; }
  .activity-controls { width: 100%; }
  .activity-select { min-width: 0; max-width: none; flex: 1; width: 45%; font-size: .67rem; }
  .activity-calendar { padding: 1.2rem 1rem .6rem; }
  .calendar-footer { align-items: start; padding-inline: 1.25rem; font-size: .57rem; }
  .calendar-footer > span { max-width: 12rem; }
  .activity-detail { grid-template-columns: 1fr; }
  .activity-period { padding: 1.25rem; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .activity-projects { padding: 1.25rem; }
  .activity-project-row { grid-template-columns: minmax(0, 1fr) 4rem 2.5rem; }
  .activity-bar-track { display: block; }
  .activity-stat strong { font-size: 1.6rem; }
  .site-header .nav-links a[href="#activity"] { display: inline; }
}
@media (max-width: 380px) {
  .activity-select { flex-basis: 100%; width: 100%; }
  .activity-chapters { grid-template-columns: 1fr; }
  .site-header .nav-links > a:last-child { display: none; }
}