/* Sitewide visual layer. Shared tokens and mobile overrides live together here. */
:root {
  --bg: #f4f3ef;
  --bg-alt: #ebeae5;
  --border: #deddd6;
  --muted: #626461;
  --tile: #eeede7;
  --tile-border: #dddbd2;
  --panel-shadow: 0 6px 24px #23231d06;
}
:root[data-theme="dark"] {
  --bg: #101211;
  --bg-alt: #191d1b;
  --surface: #1c211e;
  --border: #343c36;
  --muted: #adb6ae;
  --tile: #2a322d;
  --tile-border: #455148;
  --panel-shadow: 0 8px 24px #0002;
}
h1, h2, h3 { text-wrap: balance; }
button, select, input, textarea { -webkit-tap-highlight-color: transparent; }
.section-sub { max-width: 720px; line-height: 1.65; }
.site-header { border-bottom-width: 1px; box-shadow: 0 2px 14px #00000006; }
.site-header::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 72px; height: 3px; background: var(--accent); }
.nav-links a { font-size: 13px; padding: 10px 12px; }
:root[data-theme] .nav-links a.active { background: var(--accent-soft); color: var(--accent); box-shadow: none; }
.nav-logo img { border-radius: 12px; }

/* A numbered masthead gives every destination its own place in the site. */
.page-header { position: relative; overflow: hidden; padding-block: 48px 36px; background: var(--surface); border-bottom: 1px solid var(--border); }
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { font-size: clamp(30px, 4.4vw, 52px); max-width: 820px; line-height: 1.06; letter-spacing: -.045em; margin-bottom: 16px; }
.page-header p { max-width: 640px; margin-bottom: 0; font-size: 16px; line-height: 1.7; }
.page-header .hero-eyebrow { display: flex; align-items: center; gap: 12px; font-size: 10px; margin-bottom: 18px; }
.page-header .hero-eyebrow::before { content: ''; width: 24px; height: 3px; background: var(--accent); }
.page-header[data-section]::after { content: attr(data-section); position: absolute; right: max(4%, calc((100% - 1100px)/2)); top: 4px; font-size: 190px; line-height: 1.1; font-weight: 900; letter-spacing: -.08em; color: transparent; -webkit-text-stroke: 1px var(--border); pointer-events: none; }
.section-nav { gap: 6px; padding-block: 18px; }
.section-nav a { border-radius: 7px; background: transparent; border-color: transparent; padding: 10px 13px; min-height: 44px; }
.section-nav a:hover, .section-nav a:focus-visible { background: var(--surface); border-color: var(--border); }
.btn, .ctrl { border-radius: 9px; }
.search-input { border-width: 1px; border-radius: 9px; }
.search-input:focus { box-shadow: 0 0 0 3px var(--accent-soft); }
.panel, .card, .prep-panel, .tech-toolbar, .library-toolbar, .glossary-item { box-shadow: var(--panel-shadow); }
.panel, .card, .prep-panel { border-radius: 16px; }

/* Home and puzzles: make the board, not the surrounding chrome, the focus. */
.hero.game-hero { padding-block: 46px; }
.hero-intro .hero-eyebrow { display: inline-flex; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
.hero .hero-intro h1 { font-size: clamp(40px, 4.7vw, 61px); line-height: .99; letter-spacing: -.055em; }
:root[data-theme] .game-hero .hero-game-card { border-top: 4px solid var(--accent); box-shadow: 0 12px 36px #1c271c0c; }
.game-hero .hero-game-top { padding-bottom: 12px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.game-hero .hero-mini-tile, .word { background: var(--tile); border: 1px solid var(--tile-border); border-radius: 9px; box-shadow: 0 2px 0 var(--tile-border); }
:root[data-theme="dark"] .game-hero .hero-mini-tile,
:root[data-theme="dark"] .word { background: var(--tile); border-color: var(--tile-border); color: var(--ink); }
.game-hero .hero-mini-tile.selected, .word.sel,
:root[data-theme="dark"] .game-hero .hero-mini-tile.selected,
:root[data-theme="dark"] .word.sel { background: #c8102e; border-color: #c8102e; color: #fff; box-shadow: 0 2px 0 #870e23; }
.home-game-status, .puzzle-status { padding-block: 12px; font-size: 12px; }
.puzzle-tabs { gap: 4px; border: 1px solid var(--border); }
.puzzle-tabs .tab.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.puzzle-header { border-bottom: 1px solid var(--border); padding-bottom: 18px; margin-bottom: 20px; }
.stats .stat { background: var(--surface); border: 1px solid var(--border); padding-block: 22px; }
.stat b { font-size: 30px; letter-spacing: -.04em; }
.archiveItem { border-radius: 10px; min-height: 58px; }
.home-desk-section { padding-block: 32px; }
.home-desk-card { border-radius: 12px; box-shadow: none; }
.tool-card { position: relative; border-top: 3px solid var(--tile-border); }
.tool-card:nth-child(1) { border-top-color: #719065; }
.tool-card:nth-child(2) { border-top-color: #bc9949; }
.tool-card:nth-child(3) { border-top-color: #638ead; }
.tool-card:nth-child(4) { border-top-color: #947ca7; }
.tool-card .tool-number { margin-bottom: 24px; }
.tool-card .card-link { border-top: 1px solid var(--border); padding-top: 16px; }

/* Learning library: the belt stripe is a visual cue, not the only label. */
.tech-card { --card-belt: #899183; border-top: 4px solid var(--card-belt); box-shadow: var(--panel-shadow); padding: 22px; }
.tech-card:has(.belt-blue) { --card-belt: #4879bd; }
.tech-card:has(.belt-purple) { --card-belt: #8a64ad; }
.tech-card:has(.belt-brown) { --card-belt: #936744; }
.tech-card:has(.belt-black) { --card-belt: #363c38; }
:root[data-theme="dark"] .tech-card:has(.belt-black) { --card-belt: #bac2bc; }
.tech-card h3 { margin-bottom: 10px; font-size: 20px; }
.tech-category { align-self: flex-start; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .09em; margin-bottom: 14px; }
.tech-card .tech-desc { font-size: 14px; line-height: 1.7; }
.tech-card-actions { border-top: 1px solid var(--border); padding-top: 10px; margin-top: 18px; }
.tech-favorite { border-radius: 8px; padding-inline: 10px; }
.tech-filter-panel summary { padding-block: 10px; }
.tech-filter-panel[open] summary { margin-bottom: 10px; }
.chip { border-radius: 7px; }
.glossary-category-title { display: flex; align-items: center; gap: 14px; font-size: 19px; }
.glossary-category-title::after { content: ''; height: 1px; background: var(--border); flex: 1; }
.glossary-item { border-radius: 12px; border-top: 2px solid var(--border-strong); display: flex; flex-direction: column; }
.glossary-item dd { line-height: 1.7; }
.glossary-item .resource-actions { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 16px; }
.resource-watch { border-radius: 7px; }
.library-toolbar { padding: 20px; }
.library-heading { margin-bottom: 16px; }
.faq-group { border: 1px solid var(--border); background: var(--surface); border-radius: 14px; padding: 20px; }
.faq-group h3 { font-size: 11px; letter-spacing: .11em; color: var(--accent); }
.faq-item { background: transparent; border-radius: 0; box-shadow: none; }
.faq-item summary { font-size: 15px; padding-block: 17px; }
.faq-item[open] { background: var(--bg); border-radius: 8px; }
.faq-item[open] summary { color: var(--accent); }
.faq-item summary::after { width: 25px; height: 25px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 50%; font-size: 18px; }
.link-card { border-radius: 12px; min-height: 100px; }
.table-wrap { border: 1px solid var(--border); border-radius: 12px; }
tbody tr:nth-child(even) { background: var(--bg); }

/* Training: a dedicated clock face and a connected game-plan sequence. */
.training-summary { gap: 0; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--surface); }
.training-summary > div { border: 0; border-right: 1px solid var(--border); border-radius: 0; padding: 24px; box-shadow: none; }
.training-summary > div:last-child { border-right: 0; }
.training-summary strong { font-size: 36px; }
.round-timer { max-width: none; display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,1fr); column-gap: 32px; padding: 28px; }
.timer-settings { grid-column: 1; align-self: start; }
.timer-presets { grid-column: 1; align-self: start; }
.timer-total { grid-column: 1; text-align: left; margin: 14px 0 0; }
.timer-face { grid-column: 2; grid-row: 1 / 5; display: flex; flex-direction: column; justify-content: center; padding: 30px; border-radius: 12px; background: #18251f; color: #f4f7f0; border: 1px solid #3b5143; }
.timer-phase, .round-timer[data-phase="rest"] .timer-phase { color: #c4dfb7; margin-bottom: 6px; }
.timer-display { font-size: clamp(70px,8vw,108px); letter-spacing: -.05em; }
.timer-face progress { accent-color: #b9d6a8; height: 5px; }
.timer-actions { grid-column: 1; justify-content: flex-start; margin-top: 20px; }
.round-timer[data-phase="rest"] .timer-face { background: #20344a; border-color: #476785; }
.round-timer[data-phase="rest"] .timer-phase { color: #c1dbf7; }
.round-timer[data-phase="complete"] .timer-display { color: #c4dfb7; }
.gameplan-preview { border-top: 4px solid var(--accent); }
.gameplan-step { position: relative; padding-block: 16px; }
.gameplan-step:not(:last-of-type)::after { content: ''; position: absolute; left: 16px; bottom: -10px; width: 1px; height: 20px; background: var(--border-strong); }
.drill-item { border-left-width: 1px; border-top: 3px solid var(--border-strong); border-radius: 12px; padding: 24px; }
.drill-item h3 { font-size: 19px; }
.drill-item p { font-size: 14px; line-height: 1.7; }

/* Preparation and creator pages. */
.tool-dashboard { border-left: 0; border-top: 4px solid var(--accent); }
.event-bar { padding: 24px; background: var(--surface); border-left-width: 1px; }
.event-bar h2 { font-size: 24px; margin-bottom: 8px; }
#eventCountdown { color: var(--muted); font-size: 14px; }
.prep-grid { counter-reset: prep; }
.prep-panel { counter-increment: prep; }
.prep-panel > h2 { display: flex; gap: 12px; align-items: center; margin-top: 0; }
.prep-panel > h2::before { content: counter(prep, decimal-leading-zero); font-size: 11px; font-weight: 700; letter-spacing: .05em; color: var(--accent); border: 1px solid var(--border); padding: 8px; border-radius: 6px; }
.checklist-progress { padding: 10px 12px; background: var(--bg); border-radius: 8px; }
.checklist-item:has(input:checked) label { color: var(--muted); }
.creator-profile { border-top: 4px solid var(--accent); box-shadow: var(--panel-shadow); }
.creator-profile img { width: 80px; height: 80px; }
.about-principles { display: grid; gap: 12px; }
.about-principles article { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); padding: 22px 20px 22px 58px; }
.about-principles span { left: 20px; }
.contact-link-card { border-bottom: 3px solid var(--border-strong); }
.contact-link-card .tool-number { margin-bottom: 36px; }
.next-steps { border-top: 1px solid var(--border); }
.next-steps h2 { font-size: 24px; }
.next-step { box-shadow: none; border-radius: 12px; }
.site-footer { border-top: 1px solid var(--border); background: var(--surface); }
.footer-brand { font-size: 23px; letter-spacing: -.04em; }
.footer-brand::before { content: ''; display: block; width: 64px; height: 5px; margin-bottom: 18px; background: linear-gradient(to right,#719065 0 24%,transparent 24% 26%,#bc9949 26% 49%,transparent 49% 51%,#638ead 51% 74%,transparent 74% 76%,#947ca7 76%); }
.footer-links a { border-bottom: 1px solid var(--border); padding-block: 9px; }
.not-found-page .page-header { padding-block: 90px; }
.not-found-page .hero-actions { margin-top: 28px; }
@media (hover:hover) {
  .tech-card:hover, .glossary-item:hover, .contact-link-card:hover { border-color: var(--border-strong); box-shadow: 0 8px 24px #1822190b; }
  .game-hero .hero-mini-tile:not(.selected):hover, .word:not(.sel):hover { border-color: var(--muted); }
}
@media (max-width:900px) {
  .page-header[data-section]::after { opacity: .65; font-size: 150px; right: 3%; }
  .page-header h1 { max-width: 75%; }
  .round-timer { grid-template-columns: 1fr; padding: 20px; gap: 0; }
  .timer-face { grid-column: 1; grid-row: auto; margin-top: 22px; }
  .timer-actions { justify-content: center; }
}
@media (max-width:640px) {
  .page-header { padding-block: 28px 26px; }
  .page-header[data-section]::after { display: none; }
  .page-header h1 { max-width: none; font-size: 32px; }
  .page-header p { font-size: 15px; }
  .page-header .hero-eyebrow { margin-bottom: 12px; }
  .section { padding-block: 32px; }
  .hero.game-hero { padding-block: 24px 30px; }
  .hero .hero-intro h1 { font-size: 37px; line-height: 1.08; }
  .hero-intro .hero-eyebrow { padding-bottom: 8px; margin-bottom: 12px; font-size: 9px; }
  .game-hero .hero-game-card { padding: 16px 10px; border-radius: 14px; }
  .home-mini-grid { margin-inline: -6px; }
  .word, .hero-mini-tile { border-radius: 7px; }
  .section-nav { gap: 4px; }
  .section-nav a { padding-inline: 12px; background: var(--surface); border-color: var(--border); }
  .library-toolbar, .tech-toolbar { padding: 16px; }
  .tech-card { padding: 20px; }
  .glossary-item { padding: 20px; }
  .faq-group { padding: 16px; }
  .faq-item summary { font-size: 14px; }
  .training-summary > div { padding: 18px 12px; }
  .training-summary strong { font-size: 27px; }
  .training-summary span { font-size: 11px; }
  .timer-face { padding: 24px 18px; }
  .timer-display { font-size: 80px; }
  .timer-settings { gap: 12px; }
  .timer-settings label:last-child select { max-width: none; }
  .timer-actions { padding-right: 0; }
  .prep-panel { padding: 20px 16px; }
  .prep-panel > h2 { font-size: 20px; }
  .contact-link-card .tool-number { margin-bottom: 20px; }
  .not-found-page .page-header { padding-block: 44px; }
}
.tech-card-actions { flex-wrap: wrap; gap: 12px; }
.tech-practice-link { font-size: 12px; font-weight: 700; color: var(--ink); text-decoration: none; }
.tech-practice-link:hover { text-decoration: underline; }
.week-activity { display:grid; grid-template-columns:repeat(7,minmax(0,1fr)); gap:8px; margin-top:20px; }
.activity-day { display:grid; gap:7px; text-align:center; padding:16px 4px; border:1px solid var(--border); border-radius:10px; background:var(--surface); }
.activity-day span { font-size:12px; color:var(--muted); }
.activity-day strong { font-size:25px; line-height:1.2; }
.activity-day small { font-size:11px; color:var(--muted); }
.activity-day.has-session { background:#e2eddd; border-color:#a6bf98; color:#243d20; }
.activity-day.has-session span,.activity-day.has-session small { color:#405d37; }
.activity-day.is-today { outline:2px solid #c8102e; outline-offset:2px; }
[data-theme="dark"] .activity-day.has-session { background:#283d27; border-color:#627b58; color:#e3efdc; }
[data-theme="dark"] .activity-day.has-session span,[data-theme="dark"] .activity-day.has-session small { color:#c0d5b5; }
.saved-practice { margin:4px 0 22px; padding:14px 0; border-block:1px solid var(--border); }
.saved-practice summary { cursor:pointer; font-size:13px; font-weight:700; }
.saved-practice-list { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.saved-practice-list .chip { white-space:normal; text-align:left; min-height:44px; }
@media(max-width:640px) { .week-activity { gap:5px; } .activity-day { padding:12px 2px; gap:6px; border-radius:7px; } .activity-day span { font-size:10px; } .activity-day strong { font-size:20px; } .activity-day small { font-size:9px; overflow-wrap:anywhere; } }
/* A quiet frame for play, with mode navigation and results clearly separated. */
.puzzle-wrap { width:min(800px, calc(100% - 32px)); padding-top:28px; }
.puzzle-tabs { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:4px; padding:6px; margin:20px 0; }
.puzzle-tabs .tab { min-width:0; padding:12px 4px; font-size:13px; }
.puzzle-tabs .tab.active { box-shadow:0 2px 6px #0000000d, inset 0 -3px var(--accent); }
#gameView { background:var(--surface); border:1px solid var(--border); border-top:4px solid var(--accent); border-radius:18px; padding:24px; box-shadow:var(--panel-shadow); }
.puzzle-meta { text-align:left; font-size:12px; border-bottom:1px solid var(--border); padding-bottom:14px; margin-bottom:0; }
.puzzle-status { color:var(--muted); margin-top:8px; }
#dots { color:var(--accent); letter-spacing:4px; }
.puzzle-buttons { margin-top:16px; gap:8px; }
.puzzle-buttons .ctrl { min-width:104px; }
.solved { padding:18px 14px; line-height:1.5; border:1px solid #0000000d; }
.solved b { text-transform:uppercase; letter-spacing:.04em; font-size:12px; }
.result-summary { border-radius:12px; border:1px solid var(--border); background:var(--bg); }
#learnPanel { box-shadow:none; background:var(--bg); }
.training-tools { background:var(--bg); }
.difficulty-bar { justify-content:flex-start; gap:6px; margin:0 0 14px; }
.difficulty-bar button { border-radius:7px; font-size:12px; }
#archiveView > .panel, #statsView > .panel { padding:28px; border-top:4px solid var(--accent); }
#archiveView h2, #statsView h2 { font-size:25px; letter-spacing:-.035em; margin-bottom:12px; }
.archiveList { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); padding:3px; gap:10px; max-height:650px; }
.archiveItem { display:flex; flex-direction:column; align-items:flex-start; justify-content:center; gap:7px; padding:18px; background:var(--bg); border:1px solid var(--border); }
.archiveDate { font-size:16px; font-weight:750; letter-spacing:-.02em; }
.archiveTag { font-size:10px; letter-spacing:.045em; color:var(--muted); }
.stats { gap:10px; margin-top:20px; }
.stats .stat { position:relative; text-align:left; padding:20px; background:var(--bg); border-radius:12px; color:var(--muted); }
.stats .stat b { color:var(--ink); font-size:36px; line-height:1.15; margin-bottom:8px; font-variant-numeric:tabular-nums; }
.stats .stat:nth-child(3) { border-top:3px solid #719065; }
.stats .stat:nth-child(4) { border-top:3px solid #bc9949; }
.stats .stat:nth-child(5) { border-top:3px solid #947ca7; }
.practice-progress-row { --belt-progress:#8f9789; grid-template-columns:62px minmax(0,1fr) 48px; background:var(--bg); padding:13px 14px; border:1px solid var(--border); border-radius:9px; margin:8px 0; font-size:12px; }
.practice-progress-row:nth-child(2) { --belt-progress:#4879bd; }
.practice-progress-row:nth-child(3) { --belt-progress:#8a64ad; }
.practice-progress-row:nth-child(4) { --belt-progress:#936744; }
.practice-progress-row:nth-child(5) { --belt-progress:var(--ink); }
.practice-progress-row progress { accent-color:var(--belt-progress); height:8px; border:0; border-radius:99px; overflow:hidden; background:var(--border); }
.practice-progress-row progress::-webkit-progress-bar { background:var(--border); border-radius:99px; }
.practice-progress-row progress::-webkit-progress-value { background:var(--belt-progress); border-radius:99px; }
.practice-progress-row progress::-moz-progress-bar { background:var(--belt-progress); border-radius:99px; }
.practice-history-item { background:var(--surface); border-color:var(--border); border-left:3px solid var(--accent); font-size:12px; }
#practiceEmpty { padding:22px; border:1px dashed var(--border-strong); border-radius:10px; color:var(--muted); font-size:13px; background:var(--bg); }
.stats-actions { padding-top:18px; border-top:1px solid var(--border); }
.stats-actions .ctrl { font-size:12px; background:transparent; color:var(--muted); }

/* Compact destination cards make the phone menu readable in one glance. */
.nav-caption { display:none; }
@media(max-width:1000px) {
  .nav-toggle { border:1px solid var(--border); border-radius:10px; font-size:24px; line-height:1; }
  .nav-toggle[aria-expanded="true"] { color:var(--accent); background:var(--accent-soft); border-color:var(--accent); }
  :root[data-theme] .nav-links { top:calc(63px + env(safe-area-inset-top,0px)); left:12px; right:12px; padding:12px; gap:8px; background:var(--surface); border:1px solid var(--border); border-bottom:3px solid var(--accent); border-radius:0 0 16px 16px; box-shadow:0 20px 40px #0002; max-height:calc(100dvh - 88px - env(safe-area-inset-top,0px)); overflow-y:auto; }
  .nav-links.open { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); }
  :root[data-theme] .nav-links a { display:block; min-width:0; min-height:72px; padding:14px 12px; border:1px solid var(--border); border-radius:9px; background:var(--bg); font-size:14px; line-height:1.3; }
  :root[data-theme] .nav-links a.active { background:var(--accent-soft); border-color:var(--accent); }
  .nav-caption { display:block; font-weight:400; font-size:10px; line-height:1.4; color:var(--muted); margin-top:6px; }
  .nav-install-btn { grid-column:1/-1; width:100%; min-height:44px; margin:2px 0 0; border-radius:8px; }
  .nav-backdrop { background:#080b0ac2; backdrop-filter:blur(3px); }
}

/* Small details shared by the supporting pages. */
.drill-list { counter-reset:drill; }
.drill-item { counter-increment:drill; position:relative; padding-top:46px; }
.drill-item::before { content:counter(drill,decimal-leading-zero); position:absolute; top:17px; left:24px; font-size:10px; font-weight:800; color:var(--accent); letter-spacing:.1em; }
.drill-item .drill-meta { border-bottom:1px solid var(--border); padding-bottom:10px; margin-bottom:12px; }
.checklist-item input[type="checkbox"] { accent-color:var(--accent); }
.btn, .ctrl, .resource-watch { transition:background-color 140ms, border-color 140ms, box-shadow 140ms; }
@media(hover:hover) { .btn:hover, .ctrl:not(:disabled):hover, .resource-watch:hover { box-shadow:0 3px 10px #00000012; } .archiveItem:hover { border-color:var(--accent); background:var(--accent-soft); } }
@media(max-width:640px) {
  .puzzle-wrap { width:calc(100% - 24px); padding-top:18px; }
  #gameView { padding:14px 10px; border-radius:14px; }
  #gameView .puzzle-status { background:var(--surface); }
  .puzzle-tabs { margin:16px 0; }
  .puzzle-tabs .tab { font-size:12px; }
  .puzzle-buttons .ctrl { min-width:0; }
  #archiveView > .panel, #statsView > .panel { padding:18px 14px; }
  #archiveView h2, #statsView h2 { font-size:22px; }
  .archiveList { gap:8px; max-height:60svh; }
  .archiveItem { padding:14px 10px; }
  .archiveDate { font-size:14px; }
  .archiveTag { font-size:9px; }
  .stats { gap:8px; }
  .stats .stat { padding:16px 10px; font-size:10px; }
  .stats .stat b { font-size:28px; }
  .practice-progress-row { grid-template-columns:48px minmax(0,1fr) 38px; gap:8px; padding:12px 10px; }
}
@media(prefers-reduced-motion:reduce) { .btn,.ctrl,.resource-watch { transition:none; } }
/* Desktop layouts use the extra room for persistent controls and readable cards. */
.desktop-wordmark { display:none; }
.explorer-content { min-width:0; }
@media(min-width:1100px) {
  .desktop-explorer { display:grid; grid-template-columns:258px minmax(0,1fr); gap:28px; align-items:start; }
  .desktop-explorer .tech-toolbar { position:sticky; top:88px; max-height:calc(100svh - 112px); overflow-y:auto; scrollbar-width:thin; padding:20px; margin:0; border-top:3px solid var(--accent); }
  .desktop-explorer .search-bar { display:grid; gap:10px; margin-bottom:18px; }
  .desktop-explorer .search-bar .search-input { min-width:0; width:100%; }
  .desktop-explorer .search-bar .btn { width:100%; }
  .desktop-explorer .tech-filter-panel summary { font-size:12px; line-height:1.5; }
  .desktop-explorer .filter-chips { gap:6px; }
  .desktop-explorer .chip { font-size:11px; padding:8px 10px; min-height:36px; }
  .desktop-explorer .tech-results-bar { display:grid; gap:12px; }
  .desktop-explorer .tech-results-actions { gap:8px; }
  .desktop-explorer .sort-label { width:100%; justify-content:space-between; }
  .desktop-explorer .tech-results { grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
  .explorer-content > .save-status:empty { display:none; }
  .desktop-explorer .tech-card { padding:24px; }
  .desktop-explorer .tech-card h3 { font-size:22px; }
  #glossary .library-toolbar { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:8px 24px; padding:24px; }
  #glossary .library-toolbar > .field-label { grid-column:1; grid-row:1; align-self:end; margin:0; }
  #glossarySearch { grid-column:1; grid-row:2; align-self:end; }
  #glossary .resource-browse { grid-column:2; grid-row:1 / 3; margin:0; align-items:end; }
  #glossary .resource-browse-hint { grid-column:2; margin:0; }
  #glossary .library-results-bar { grid-column:1/-1; margin-top:8px; }
  .creator-profile { position:sticky; top:92px; align-self:start; }
  .section-heading { align-items:center; }
  .page-header h1 { font-size:56px; }
  .page-header p { font-size:17px; }
}
@media(min-width:1280px) {
  :root { --max-width:1320px; }
  .site-header .container { width:min(1400px,94%); }
  .desktop-wordmark { display:block; font-size:17px; font-weight:800; letter-spacing:-.045em; color:var(--ink); white-space:nowrap; }
  .nav-logo { display:flex; align-items:center; gap:12px; }
  .nav-links { gap:2px; margin-left:auto; }
  .nav-links a { padding-inline:10px; }
  .page-header { padding-block:56px 44px; }
  .page-header[data-section]::after { right:max(4%,calc((100% - 1320px)/2)); }
  .game-layout { grid-template-columns:minmax(0,.8fr) minmax(0,1.45fr); gap:64px; }
  .hero .hero-intro h1 { font-size:68px; }
  .game-hero .hero-mini-tile { min-height:90px; font-size:14px; }
  .tool-card { padding:28px 24px; }
  .section { padding-block:56px; }
  .prep-grid { gap:24px; }
  .prep-panel { padding:28px; }
  .footer-grid { gap:64px; }
}
@media(min-width:1500px) {
  .desktop-explorer { grid-template-columns:270px minmax(0,1fr); gap:30px; }
  .desktop-explorer .tech-results { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .desktop-explorer .tech-card { padding:22px; }
  .desktop-explorer .tech-card h3 { font-size:20px; }
}
/* Comfortable phone controls, including inputs that do not trigger iOS zoom. */
@media(max-width:640px) {
  main input:not([type="checkbox"]):not([type="radio"]), main select, main textarea { font-size:16px; }
  .tech-toolbar { padding:18px 16px; }
  .tech-toolbar .search-bar { display:grid; grid-template-columns:minmax(0,1fr); gap:10px; }
  .tech-toolbar .search-bar .btn { width:100%; min-height:44px; }
  .tech-results-bar { align-items:stretch; gap:12px; }
  .tech-results-actions { display:grid; grid-template-columns:1fr 1fr; gap:10px; width:100%; }
  .tech-results-actions .sort-label { justify-content:space-between; }
  .tech-results-actions .text-button { grid-column:1/-1; min-height:44px; border:1px solid var(--border); border-radius:8px; }
  .tech-card-actions { display:grid; grid-template-columns:1fr 1fr; align-items:stretch; }
  .tech-card-actions > * { min-width:0; }
  .tech-card-actions .tech-favorite { width:100%; align-self:stretch; }
  .library-pagination .btn { width:100%; }
  .glossary-item { padding:20px; }
  .resource-actions { row-gap:12px; }
  .resource-actions a { min-height:44px; display:inline-flex; align-items:center; }
  .site-footer { padding-bottom:100px; }
}
@media print {
  .desktop-explorer { display:block; }
  .desktop-explorer .tech-toolbar, .creator-profile { position:static; max-height:none; overflow:visible; }
  .page-header::after, .footer-brand::before { display:none; }
  .timer-face { color:#111; background:#fff; }
  .panel, .card, .prep-panel { box-shadow:none; }
}

/* Training tools stay easy to reach during a longer visit. */
.training-jump { position:sticky; top:calc(60px + env(safe-area-inset-top,0px)); z-index:40; background:var(--surface); border-bottom:1px solid var(--border); box-shadow:0 4px 12px #00000008; }
.training-jump .section-nav { flex-wrap:nowrap; overflow-x:auto; scrollbar-width:thin; padding-block:10px; gap:8px; }
.training-jump .section-nav a { flex-shrink:0; white-space:nowrap; font-size:13px; min-height:40px; }
.training-page main [id] { scroll-margin-top:calc(150px + env(safe-area-inset-top,0px)); }
.training-page .section-title:target { color:var(--accent); }
.session-workspace { display:grid; gap:24px; align-items:start; }
.session-editor { border-top:3px solid var(--accent); margin-top:0; }
.session-editor .session-fields > label, .session-editor .search-input { min-width:0; }
.session-editor h3, .session-history > h3 { margin:0 0 20px; font-size:21px; letter-spacing:-.025em; }
.session-history { min-width:0; padding:24px; border:1px solid var(--border); border-radius:16px; background:var(--bg); }
.session-history .checklist-progress { margin:0 0 18px; padding:0 0 14px; border-bottom:1px solid var(--border); border-radius:0; }
.session-history .no-results { padding:36px 20px; border:1px dashed var(--border-strong); border-radius:12px; font-size:14px; line-height:1.7; }
.session-history .session-card { border-left:3px solid var(--accent); box-shadow:none; }
.session-editor .dashboard-actions { margin-top:16px; }
.session-editor .save-status:empty { display:none; }
.prep-panel .checklist-item { align-items:center; gap:12px; }
.prep-panel .checklist-item label { flex:1; padding:10px 0; }
.prep-panel .checklist-item input { flex-shrink:0; width:20px; height:20px; }
.prep-panel .checklist-item.checked { opacity:1; }
.prep-panel .checklist-item.checked label { color:var(--muted); }
.prep-panel .checklist-bar { height:7px; }
@media(min-width:1000px) {
  .session-workspace { grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:28px; }
  .session-editor { position:sticky; top:150px; }
  .session-editor .session-fields { grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr) minmax(0,1fr); gap:12px; }
  .gameplan-preview { position:sticky; top:150px; align-self:start; }
}
@media(max-width:640px) {
  .training-jump .container { width:100%; padding-inline:12px; }
  .training-jump .section-nav { padding-block:8px; }
  .training-jump .section-nav a { font-size:12px; padding:8px 12px; }
  .session-history { padding:20px 16px; }
  .session-editor .dashboard-actions { display:grid; grid-template-columns:1fr; }
  .session-editor .dashboard-actions .btn { min-height:46px; width:100%; }
  .timer-actions { display:grid; grid-template-columns:2fr 1fr; width:100%; gap:10px; }
  .timer-actions .btn { min-height:48px; }
  .prep-panel .checklist-item { padding-block:4px; }
  .prep-panel .checklist-item label { min-height:44px; display:flex; align-items:center; }
}
@media print {
  .training-jump { display:none; }
  .session-workspace { display:block; }
  .session-editor, .gameplan-preview { position:static; }
}

.resume-work { display:grid; grid-template-columns:1fr auto; gap:6px 24px; padding:24px; margin-bottom:22px; background:var(--accent-soft); border:1px solid var(--accent); border-radius:14px; color:var(--ink); text-decoration:none; }
.resume-work .hero-eyebrow { grid-column:1; margin:0; }
.resume-work strong { grid-column:1; font-size:22px; }
.resume-work > span:not(.hero-eyebrow) { grid-column:1; font-size:13px; color:var(--muted); }
.resume-work b { grid-column:2; grid-row:1/4; align-self:center; color:var(--accent); font-size:14px; }
.discovery-paths { padding:22px; margin-bottom:28px; border:1px solid var(--border); border-radius:14px; background:var(--surface); display:flex; justify-content:space-between; gap:20px; align-items:center; }
.discovery-paths .hero-eyebrow { margin-bottom:6px; }
.discovery-paths p { margin:0; font-size:13px; color:var(--muted); }
.discovery-buttons { display:flex; flex-wrap:wrap; gap:8px; }
.discovery-buttons .chip { min-height:44px; }
.rotation-progress { width:100%; height:8px; accent-color:var(--accent); margin-bottom:24px; }
.rotation-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.rotation-card { border:1px solid var(--border); border-top:3px solid var(--accent); border-radius:12px; background:var(--surface); padding:22px; }
.rotation-state { color:var(--muted); font-size:12px; }
.rotation-card h3 { margin:10px 0 20px; font-size:20px; }
.rotation-card > div { display:flex; gap:12px; flex-wrap:wrap; align-items:center; }
.rotation-card .text-button { min-height:44px; display:inline-flex; align-items:center; font-size:12px; }
@media(max-width:900px) { .discovery-paths { display:block; } .discovery-buttons { margin-top:16px; } .rotation-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media(max-width:640px) { .resume-work { grid-template-columns:1fr; padding:20px; } .resume-work b { grid-column:1; grid-row:auto; margin-top:8px; } .discovery-buttons { display:grid; grid-template-columns:1fr 1fr; } .discovery-buttons .chip { text-align:left; font-size:12px; } .rotation-grid { grid-template-columns:1fr; } }

.history-controls { display:grid; grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); gap:12px; margin-bottom:12px; }
.history-controls label { min-width:0; display:grid; gap:7px; font-size:12px; font-weight:700; color:var(--muted); }
.history-controls .search-input { min-width:0; width:100%; padding:12px 10px; }
.session-reuse { margin-top:16px; padding-top:12px; border-top:1px solid var(--border); }
.session-reuse .text-button { min-height:44px; }
#sessionMatches:empty { display:none; }
@media(max-width:640px) { .history-controls { grid-template-columns:1fr; } }
@media print { .history-controls, .session-reuse, #sessionMatches { display:none; } }

.competition-format { display:flex; align-items:center; gap:24px; padding:20px 24px; margin-bottom:22px; border:1px solid var(--border); border-radius:14px; background:var(--surface); }
.competition-format label { display:grid; gap:10px; flex:0 1 300px; min-width:0; font-size:14px; }
.competition-format select { width:100%; min-width:0; }
.competition-format p { margin:0; color:var(--muted); font-size:13px; line-height:1.6; }
@media(max-width:640px) { .competition-format { display:block; padding:20px 16px; } .competition-format p { margin-top:14px; } }
@media print { .competition-format { display:none; } .checklist-item.format-excluded { display:none !important; } }

.guess-history { margin:20px 0; border:1px solid var(--border); border-radius:12px; background:var(--surface); }
.guess-history summary { padding:16px; cursor:pointer; font-size:13px; font-weight:700; }
.guess-history summary span { color:var(--muted); margin-left:4px; }
.guess-history-list { padding:0 16px 8px; }
.guess-history-row { display:flex; justify-content:space-between; gap:16px; padding:14px 0; border-top:1px solid var(--border); }
.guess-history-row b { display:block; font-size:12px; margin-bottom:7px; }
.guess-history-row div > span { font-size:12px; line-height:1.7; color:var(--muted); overflow-wrap:anywhere; }
.guess-verdict { color:var(--muted); font-size:18px; }
.guess-verdict.is-correct { color:var(--accent); }

.archive-controls { display:flex; gap:16px; align-items:end; margin:20px 0 12px; }
.archive-controls label { display:grid; gap:8px; color:var(--muted); font-size:12px; font-weight:700; flex:1; }
.archive-controls select { min-height:44px; padding:10px 12px; border:1px solid var(--border); border-radius:8px; background:var(--surface); color:var(--ink); font:inherit; font-size:16px; }
.archive-controls .ctrl { min-height:44px; }
.archive-outcome { display:inline-flex; font-size:11px; font-weight:700; padding:5px 8px; border:1px solid var(--border); border-radius:6px; color:var(--muted); background:var(--surface); }
.archive-outcome.is-solved { color:var(--ink); border-color:var(--border-strong); }
@media(max-width:640px) { .archive-controls { flex-direction:column; align-items:stretch; } }