* { box-sizing: border-box; }
:root { --paper: #f2efe9; --ink: #1b2423; --muted: #78807b; --line: #d5d8cf; --coral: #e8674f; --coral-dark: #c9503e; --mint: #c8d9c8; --card: #e4e8df; --shadow: 0 18px 40px rgba(27,36,35,.08); }
html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); font-family: "Space Grotesk", sans-serif; }
body { background-image: none; }
button, input { font: inherit; }
button { cursor: pointer; }
.app-shell { min-height: 100vh; max-width: 1240px; margin: auto; padding: 28px 5vw 22px; display: flex; flex-direction: column; }
.topbar { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.brand-button, .text-button, .icon-button { border: 0; background: transparent; color: inherit; }
.brand-button { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 28px; height: 28px; background: var(--ink); color: var(--paper); border-radius: 50%; font: 500 14px "DM Mono", monospace; }
.topbar-actions { display: flex; gap: 24px; align-items: center; }
.archive-link { color:var(--muted); font-size:13px; text-decoration:none; border-bottom:1px solid currentColor; }
.archive-link:hover { color:var(--ink); }.text-button { color: var(--muted); font-size: 13px; }.text-button:hover { color: var(--ink); }.icon-button { font-size: 22px; padding: 0 4px; color: var(--coral-dark); }
.screen { display: none; flex: 1; padding: clamp(58px, 10vh, 130px) 4vw; animation: appear .35s ease both; }.screen.active { display: block; }
@keyframes appear { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.eyebrow { margin: 0 0 18px; text-transform: uppercase; font: 500 11px "DM Mono", monospace; letter-spacing: .12em; color: var(--coral-dark); }.intro-copy { max-width: 100%; }.intro-copy h1, .centered-screen h1, .scores-header h1 { font-size: clamp(48px, 7vw, 92px); line-height: .94; letter-spacing: -.065em; margin: 0; font-weight: 600; }.intro-copy h1 { font-size: clamp(22px, 5.4vw, 72px); line-height: 1.05; letter-spacing: -.045em; white-space: nowrap; }.intro-copy h1 em { color: var(--coral); font-style: normal; }.intro-text { max-width: 390px; margin: 30px 0 34px; color: var(--muted); line-height: 1.55; font-size: 17px; }
.primary-button, .secondary-button { border-radius: 3px; padding: 14px 18px; border: 1px solid var(--ink); font-weight: 600; transition: transform .2s, background .2s, color .2s; }.primary-button { background: var(--coral); border-color: var(--coral); color: #fff9f2; }.primary-button:hover, .secondary-button:hover { transform: translateY(-2px); }.primary-button span { padding-left: 22px; font-size: 18px; }.secondary-button { background: transparent; color: var(--ink); }.secondary-button.compact { padding: 9px 13px; font-size: 12px; }
.start-aside { max-width: 320px; margin: 14vh 0 0 auto; color: var(--muted); }.stat-line { display: flex; justify-content: space-between; padding: 14px 0; border-top: 1px solid var(--line); font: 12px "DM Mono", monospace; }.stat-line strong { color: var(--ink); font-weight: 500; }.aside-rule { border-top: 1px solid var(--line); }.start-aside p { font-size: 13px; line-height: 1.6; }.start-aside p strong { color: var(--ink); }
.game-header { display: flex; justify-content: space-between; align-items: end; gap: 24px; }.game-header h2 { margin: 0; font-size: clamp(28px, 4vw, 48px); letter-spacing: -.06em; }.hud { display: flex; gap: clamp(14px, 3vw, 36px); }.hud-item { display: flex; flex-direction: column; gap: 5px; }.hud-item span, .phase-label, .game-hint { color: var(--muted); text-transform: uppercase; font: 10px "DM Mono", monospace; letter-spacing: .1em; }.hud-item strong { font: 500 16px "DM Mono", monospace; }.lives-item strong { color: var(--coral); letter-spacing: 3px; }
.phase-bar { margin-top: 50px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 12px; }.phase-label { color: var(--coral-dark); }.phase-time { font: 500 13px "DM Mono", monospace; }
.board-wrap { background: rgba(255,255,255,.27); border: 1px solid var(--line); margin: 16px 0 14px; padding: clamp(18px, 4vw, 42px); min-height: 480px; display: flex; align-items: center; justify-content: center; }.board { position: relative; width: min(780px, 100%); height: 390px; }.tile { position: absolute; width: clamp(62px, 10vw, 88px); aspect-ratio: 1; border: 0; border-radius: 18px; perspective: 700px; background: var(--ink); padding: 0; transform: translate(-50%, -50%); box-shadow: inset 0 0 0 2px rgba(242,239,233,.08); }.tile-inner { position: absolute; inset: 0; }.tile-face { position: absolute; inset: 0; display: grid; place-items: center; border-radius: 18px; font: 500 clamp(20px, 3vw, 32px) "DM Mono", monospace; transition: transform .42s cubic-bezier(.2,.75,.25,1), opacity .21s ease; }.tile-front { z-index: 1; background: var(--mint); color: var(--ink); box-shadow: var(--shadow); opacity: 1; transform: rotateY(0); }.tile-back { display: none; }.tile.is-hidden .tile-front { opacity: 0; transform: rotateY(180deg); }.tile.is-revealed .tile-front { opacity: 1; transform: rotateY(0); }.tile.is-correct .tile-front { background: var(--coral); color: #fff9f2; animation: pulse .38s ease; }.tile.is-wrong .tile-front { background: var(--coral-dark); color: #fff9f2; animation: shake .38s ease; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(232,103,79,.2); } } @keyframes shake { 25% { transform: rotateY(180deg) translateX(-6px); } 75% { transform: rotateY(180deg) translateX(6px); } }.game-hint { text-align: center; margin: 0; }
.centered-screen { max-width: 700px; margin: auto; width: 100%; padding-top: clamp(64px, 12vh, 130px); }.centered-screen h1 { font-size: clamp(48px, 8vw, 82px); }.result-metrics { display: flex; gap: 70px; margin: 42px 0; }.result-metrics div, .percentile-top, .percentile-score { display: flex; flex-direction: column; gap: 7px; }.result-metrics span, .percentile-card span, .score-form label, .result-count { color: var(--muted); text-transform: uppercase; font: 10px "DM Mono", monospace; letter-spacing: .08em; }.result-metrics strong { font: 500 28px "DM Mono", monospace; }.score-form { border-top: 1px solid var(--line); padding-top: 20px; }.score-form label { display: block; margin-bottom: 11px; }.age-row { display: flex; gap: 10px; }.age-row input { width: 130px; border: 1px solid var(--line); background: rgba(255,255,255,.45); border-radius: 3px; padding: 14px; color: var(--ink); }.form-error { min-height: 18px; color: var(--coral-dark); font-size: 12px; }
.percentile-card { margin: 35px 0 26px; padding: 25px; background: var(--card); border-left: 4px solid var(--coral); }.percentile-top, .percentile-score { flex-direction: row; justify-content: space-between; border-bottom: 1px solid rgba(27,36,35,.15); padding-bottom: 13px; }.percentile-top strong, .percentile-score strong { font: 500 15px "DM Mono", monospace; }.percentile-main { margin: 25px 0 14px; display: flex; justify-content: space-between; align-items: end; }.percentile-main strong { font-size: 47px; letter-spacing: -.06em; }.percentile-card p { margin: 0; line-height: 1.5; font-size: 14px; }.result-count { display: block; margin-top: 10px; text-transform: none; }.button-row { display: flex; gap: 10px; flex-wrap: wrap; }
.scores-header { display: flex; justify-content: space-between; align-items: end; }.scores-header h1 { font-size: clamp(48px, 8vw, 86px); }.group-tabs { display: flex; gap: 8px; margin: 55px 0 15px; flex-wrap: wrap; }.group-tab { border: 1px solid var(--line); border-radius: 20px; padding: 8px 14px; background: transparent; color: var(--muted); font-size: 12px; }.group-tab.active { background: var(--ink); border-color: var(--ink); color: var(--paper); }.table-wrap { border-top: 1px solid var(--ink); position: relative; min-height: 180px; }table { width: 100%; border-collapse: collapse; text-align: left; }th { color: var(--muted); font: 10px "DM Mono", monospace; letter-spacing: .08em; text-transform: uppercase; padding: 14px 8px; }td { padding: 15px 8px; border-top: 1px solid var(--line); font: 13px "DM Mono", monospace; }td:nth-child(2) { color: var(--coral-dark); font-weight: 500; }.empty-state { color: var(--muted); padding: 38px 8px; font-size: 14px; }
.toast { position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: var(--ink); color: var(--paper); padding: 12px 18px; font: 12px "DM Mono", monospace; transition: opacity .2s, transform .2s; }.toast.show { opacity: 1; transform: translate(-50%, 0); }footer { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 18px; color: var(--muted); font: 10px "DM Mono", monospace; letter-spacing: .08em; }
@media (max-width: 680px) { .app-shell { padding: 18px 20px; }.topbar { padding-bottom: 15px; }.topbar-actions { gap: 13px; }.text-button { font-size: 11px; }.screen { padding: 55px 0; }.start-aside { margin: 90px 0 0; }.game-header { display: block; }.hud { margin-top: 28px; justify-content: space-between; }.phase-bar { margin-top: 34px; }.board-wrap { min-height: 390px; padding: 20px 12px; }.board { height: 350px; }.tile { width: clamp(58px, 18vw, 76px); }.result-metrics { gap: 40px; }.age-row { align-items: stretch; }.age-row input { width: 100px; }.age-row .primary-button { flex: 1; padding-left: 11px; padding-right: 11px; }.scores-header { align-items: start; gap: 20px; }.scores-header .secondary-button { flex-shrink: 0; }.scores-header h1 { font-size: 50px; }.group-tabs { margin-top: 38px; }th, td { padding-left: 3px; padding-right: 3px; }.table-wrap { overflow-x: auto; }table { min-width: 450px; }footer { margin-top: 30px; } }

/* Pixel sunset theme */
:root { --paper: #f5b36e; --ink: #130a35; --muted: #c09ac8; --line: #5a2c77; --coral: #f07b62; --coral-dark: #d75862; --mint: #8bc4bf; --card: #291452; --shadow: 8px 8px 0 rgba(13,6,36,.5); }
html, body { background-color: #11082f; color: #f8d9ae; }
body { position: relative; background-image: none; }
body::before { content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .82; background-image: linear-gradient(to bottom, transparent 0 55%, #21104d 55% 62%, #74316f 62% 67%, #d85c65 67% 72%, #2b1457 72% 100%), repeating-linear-gradient(to bottom, transparent 0 5px, rgba(244,160,119,.08) 5px 6px); }
.app-shell { max-width: 1280px; position: relative; z-index: 1; }
.topbar { border-bottom: 2px solid var(--line); }
.brand-button { font-family: "DM Mono", monospace; text-transform: uppercase; letter-spacing: .04em; }
.brand-mark { width: 30px; height: 30px; border-radius: 0; background: var(--coral); color: var(--ink); box-shadow: 4px 4px 0 var(--ink); }
.text-button, .icon-button { color: #f5b36e; font-family: "DM Mono", monospace; text-transform: uppercase; font-size: 11px; letter-spacing: .06em; }
.text-button:hover { color: #fff0cb; }.icon-button { color: var(--coral); }
.eyebrow, .phase-label { color: #f48a6c; text-shadow: 2px 2px 0 #35145f; }
.intro-copy h1, .centered-screen h1, .scores-header h1, .game-header h2 { font-family: "DM Mono", monospace; text-transform: uppercase; text-shadow: 4px 4px 0 #32135d; color: #ffd28f; }
.intro-copy h1 { letter-spacing: -.07em; }.intro-copy h1 em { color: #f07b62; }
.intro-text, .start-aside, .game-hint, .result-count, .empty-state { color: #d7afd0; }
.primary-button, .secondary-button { border-radius: 0; border: 2px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); text-transform: uppercase; font-family: "DM Mono", monospace; font-size: 12px; }
.primary-button { background: var(--coral); border-color: var(--coral); color: var(--ink); }.secondary-button { background: #21104d; border-color: #f07b62; color: #f8d9ae; }.primary-button:hover, .secondary-button:hover { transform: translate(2px, 2px); box-shadow: 3px 3px 0 var(--ink); }
.start-aside { background: rgba(19,10,53,.5); border: 2px solid var(--line); padding: 16px; box-shadow: 6px 6px 0 rgba(19,10,53,.5); }.stat-line { border-color: var(--line); }.stat-line strong, .start-aside p strong { color: #f5b36e; }.aside-rule { border-color: var(--line); }
.hud-item span, .phase-label, .game-hint, .result-metrics span, .percentile-card span, .score-form label, .result-count, th { color: #d7afd0; }
.hud-item strong { color: #f8d9ae; }.lives-item strong { color: var(--coral); }.phase-bar { border-color: var(--line); }
.board-wrap { background: rgba(17,8,47,.62); border: 2px solid #5a2c77; box-shadow: 8px 8px 0 rgba(17,8,47,.55); }.tile { border-radius: 0; background: #160b3b; box-shadow: 4px 4px 0 #0b0520; }.tile-face { border-radius: 0; }.tile-front { background: var(--mint); color: var(--ink); box-shadow: none; }.tile.is-correct .tile-front { background: var(--coral); }.tile.is-wrong .tile-front { background: #b54166; }
.centered-screen, .scores-header { color: #f8d9ae; }.result-metrics strong, .percentile-main strong { color: #f5b36e; }.score-form { border-color: var(--line); }.age-row input { border: 2px solid var(--line); border-radius: 0; background: #160b3b; color: #f8d9ae; }.percentile-card { background: rgba(41,20,82,.9); border-left: 5px solid var(--coral); box-shadow: 8px 8px 0 rgba(17,8,47,.6); }.percentile-top, .percentile-score { border-color: var(--line); }.percentile-top strong, .percentile-score strong { color: #f5b36e; }
.group-tab { border-radius: 0; border: 2px solid var(--line); color: #d7afd0; background: #160b3b; font-family: "DM Mono", monospace; }.group-tab.active { background: var(--coral); border-color: var(--coral); color: var(--ink); }.table-wrap { border-color: #f07b62; }td { border-color: var(--line); color: #f8d9ae; }td:nth-child(2) { color: var(--coral); }
.toast { border: 2px solid var(--coral); border-radius: 0; background: var(--ink); color: var(--coral); box-shadow: 4px 4px 0 #5a2c77; }.topbar + .screen { border-top: 0; }footer { border-color: var(--line); color: #b989c1; }

@media (max-width: 680px) { .intro-copy h1 { font-size: clamp(20px, 5.4vw, 52px); }.start-aside { box-shadow: 4px 4px 0 rgba(19,10,53,.5); }.board-wrap { box-shadow: 5px 5px 0 rgba(17,8,47,.55); } }

@media (max-width: 680px) {
	.table-wrap { overflow: visible; }
	table { width: 100%; min-width: 0; table-layout: fixed; }
	th, td { padding: 12px 3px; font-size: 9px; white-space: nowrap; overflow: hidden; text-overflow: clip; }
	th:nth-child(1), td:nth-child(1) { width: 15%; }
	th:nth-child(2), td:nth-child(2) { width: 27%; }
	th:nth-child(3), td:nth-child(3) { width: 17%; }
	th:nth-child(4), td:nth-child(4) { width: 15%; }
	th:nth-child(5), td:nth-child(5) { width: 26%; }
}

/* Complete site navigation */
@media (max-width: 900px) {
  .topbar { flex-wrap:wrap; gap:16px; }
  .topbar-actions { width:100%; justify-content:flex-end; flex-wrap:wrap; gap:12px 18px; }
}
@media (max-width: 680px) {
  .topbar-actions { justify-content:flex-start; }
  .archive-link { font-size:10px; }
}

/* Named leaderboard and explained percentile */
.score-fields{display:grid;grid-template-columns:minmax(180px,1fr) 120px auto;gap:10px;align-items:end}
.score-fields label{display:flex;flex-direction:column;gap:8px;margin:0}
.score-fields input{width:100%;min-width:0;height:48px;border:2px solid var(--line);border-radius:0;background:#160b3b;color:#f8d9ae;padding:12px 14px;font:500 14px "DM Mono",monospace}
.score-fields input:focus{outline:2px solid var(--coral);outline-offset:2px}
.score-fields .primary-button{height:48px;white-space:nowrap}
.percentile-main{display:block}
.percentile-main span{display:block;margin-bottom:8px}
.percentile-main strong{display:block;font-size:clamp(25px,5vw,42px);letter-spacing:-.045em;line-height:1.08}
td:nth-child(2){color:#f8d9ae}
td:nth-child(3){color:var(--coral);font-weight:500}

@media (max-width:680px){
  .score-fields{grid-template-columns:minmax(0,1fr) 90px}
  .score-fields .primary-button{grid-column:1/-1}
  #scores-screen th:nth-child(5),#scores-screen td:nth-child(5),#scores-screen th:nth-child(7),#scores-screen td:nth-child(7){display:none}
  #scores-screen th:nth-child(1),#scores-screen td:nth-child(1){width:12%}
  #scores-screen th:nth-child(2),#scores-screen td:nth-child(2){width:25%}
  #scores-screen th:nth-child(3),#scores-screen td:nth-child(3){width:19%}
  #scores-screen th:nth-child(4),#scores-screen td:nth-child(4){width:13%}
  #scores-screen th:nth-child(6),#scores-screen td:nth-child(6){width:31%}
}

/* Two-part percentile explanation */
.standing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0 14px}
.standing-grid .percentile-main{margin:0;padding:18px;border:1px solid var(--line);background:rgba(17,8,47,.38)}
.standing-grid .percentile-main strong{font-size:clamp(20px,3.1vw,34px)}
.standing-grid .percentile-main p{margin-top:12px;color:#d7afd0}
@media(max-width:680px){.standing-grid{grid-template-columns:1fr;gap:8px}.standing-grid .percentile-main{padding:12px}.standing-grid .percentile-main p{margin-top:7px;font-size:12px}}