:root {
    color-scheme: light;
    --bg: #f8f5ee;
    --surface: #fdfbf6;
    --line: #d4cec3;
    --accent: #b83b2f;
    --accent-soft: #f2decc;
    --text: #23231f;
    --muted: #5e594f;
    --serif: "Source Serif 4", "Iowan Old Style", Palatino, Georgia, serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
[hidden] { display: none !important; }
.session-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; padding-bottom: 26px; }
.difficulty-field label, .history-heading label { font-size: 12px; font-weight: 600; }
.session-bar select, .history-panel select { margin-left: 10px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 9px 12px; color: var(--text); font-size: 13px; }
.session-bar p, .routine-progress p { color: var(--muted); font-size: 12px; margin: 8px 0 0; line-height: 1.6; }
.routine-card { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.routine-card strong { font-size: 14px; font-weight: 600; }
.gym-button { padding: 11px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--text); cursor: pointer; font-size: 14px; font-weight: 500; }
.gym-button.primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.gym-button:hover { border-color: var(--accent); }
.gym-button:disabled, select:disabled { opacity: .55; cursor: not-allowed; }
.routine-progress { display: flex; align-items: center; gap: 18px; padding: 20px; margin-bottom: 24px; background: var(--accent-soft); border: 1px solid var(--line); border-radius: 22px; }
.routine-progress > div { flex: 1; }
#routine-time { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 20px; font-variant-numeric: tabular-nums; }
.result-panel { padding: 25px; margin-bottom: 35px; background: var(--accent-soft); border: 1px solid var(--line); border-radius: 22px; }
.result-panel h2, .history-panel h2 { font-size: 25px; letter-spacing: -.7px; margin: 10px 0; }
.result-panel p { font-size: 13px; line-height: 1.8; margin-top: 10px; }
#result-comparison { color: var(--muted); }
.history-panel { padding-bottom: 55px; }
.history-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
#storage-note, #history-summary, #history-list { font-size: 12px; line-height: 1.7; color: var(--muted); }
#history-summary { margin: 15px 0; }
#history-list { overflow-x: auto; border-top: 1px solid var(--line); padding-top: 14px; }
.history-panel table { width: 100%; min-width: 660px; border-collapse: collapse; text-align: left; }
.history-panel th { color: var(--text); font-weight: 600; }
.history-panel td, .history-panel th { border-bottom: 1px solid var(--line); padding: 12px 12px 12px 0; }
.history-panel td:nth-child(4) { max-width: 360px; }
#legacy-records { margin-top: 16px; color: var(--muted); font-size: 12px; }
#legacy-records summary { cursor: pointer; }
@media(max-width:760px) {
    .session-bar { grid-template-columns: 1fr; gap: 20px; }
    .routine-card { border-top: 1px solid var(--line); padding-top: 18px; }
    .routine-progress { flex-wrap: wrap; }
    .routine-progress > div { flex-basis: 70%; }
    .history-heading { align-items: start; flex-direction: column; gap: 12px; }
    .history-panel table { min-width: 0; }
    .history-panel thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
    .history-panel tbody, .history-panel tr { display: block; }
    .history-panel tr { padding: 12px; margin-bottom: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
    .history-panel td { display: grid; grid-template-columns: 75px minmax(0,1fr); gap: 10px; padding: 6px 0; border: 0; }
    .history-panel td:nth-child(4) { max-width: none; }
    .history-panel td::before { content: attr(data-label); font-weight: 600; color: var(--text); }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
:focus-visible { outline: 2px solid var(--accent) !important; outline-offset: 4px; }
.shell { width: min(1200px, calc(100% - 80px)); margin-inline: auto; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 12px; background: var(--text); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 84px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); font-family: var(--serif); font-size: 26px; font-weight: 500; letter-spacing: -.03em; text-decoration: none; }
.brand-logo { display: block; width: 28px; height: 42px; flex-shrink: 0; object-fit: contain; background: transparent; }
.brand-name { line-height: 1; }
.back-link { display: inline-flex; align-items: center; gap: 10px; padding: 10px 0; color: var(--muted); font-size: 13px; text-decoration: none; }
.back-link:hover { color: var(--accent); }
.intro { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 80px; padding: 45px 0 38px; }
.eyebrow, .nav-title { font-family: var(--sans); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .16em; color: var(--accent); }
.intro h1 { font-family: var(--serif); font-size: clamp(40px,4.4vw,64px); line-height: 1.02; letter-spacing: -.03em; font-weight: 400; margin: 12px 0; }
.intro h1 em { color: var(--text); font-style: italic; }
.intro-copy { max-width: 580px; font-size: 14px; color: var(--muted); line-height: 1.75; margin: 0; }
.goal-card { border-top: 2px solid var(--text); padding-top: 17px; }
.goal-label { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 12px; font-weight: 600; margin-bottom: 10px; }
.goal-status { font-size: 10px; color: var(--accent); opacity: 0; }
.goal-status.visible { opacity: 1; }
.goal-input { width: 100%; height: 52px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--text); font-size: 16px; }
.goal-input::placeholder { color: var(--muted); }
.goal-hint { font-size: 11px; line-height: 1.6; color: var(--muted); margin: 10px 0 0; }
.dashboard { display: grid; grid-template-columns: 210px minmax(0,1fr); gap: 25px; align-items: start; padding-bottom: 60px; }
.module-nav { position: sticky; top: 105px; padding: 12px 0; }
.nav-title { margin: 0 12px 16px; color: var(--muted); }
.tab-list { display: grid; gap: 5px; }
.training-tab { display: grid; grid-template-columns: 30px minmax(0,1fr); align-items: center; gap: 10px; width: 100%; padding: 13px 11px; border: 1px solid transparent; border-radius: 16px; text-align: left; color: var(--muted); background: transparent; cursor: pointer; }
.training-tab:hover { background: var(--accent-soft); }
.training-tab.is-active { background: var(--accent-soft); color: var(--accent); border-color: var(--line); }
.tab-icon { display: grid; place-items: center; font-size: 17px; }
.tab-name { display: block; font-size: 13px; font-weight: 600; }
.tab-description { display: block; font-size: 10px; margin-top: 3px; color: var(--muted); }
.records { display: grid; gap: 13px; margin-top: 24px; padding: 20px 12px 0; border-top: 1px solid var(--line); }
.record-row { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 11px; }
.record-value { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 10px; color: var(--accent); }
.workspace { min-width: 0; min-height: 555px; padding: 26px; border: 1px solid var(--line); border-radius: 28px; background: var(--surface); scroll-margin-top: 100px; }
.loading-state { min-height: 480px; display: grid; place-items: center; color: var(--muted); text-align: center; }
.loading-dot { width: 8px; height: 8px; display: inline-block; margin-bottom: 10px; border-radius: 50%; background: var(--accent); }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 80; display: flex; align-items: center; gap: 10px; max-width: calc(100% - 32px); padding: 14px 18px; background: var(--text); color: var(--bg); border-radius: 999px; box-shadow: 0 8px 30px #231f1814; opacity: 0; pointer-events: none; transform: translateY(20px); transition: opacity .2s, transform .2s; }
.toast.is-visible { opacity: 1; transform: none; }
.toast p { font-size: 13px; margin: 0; }
.site-footer { padding: 25px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer-inner { display: flex; justify-content: space-between; gap: 25px; }
.footer-inner p { margin: 0; }
.footer-inner strong { font-weight: 500; color: var(--text); }

/* Local utility subset used by the exercise fragments. Keeping it here avoids
   the render-blocking Tailwind browser CDN and makes the gym work offline. */
.hidden { display: none !important; }
.block { display: block; }
.workspace p, .workspace h2, .workspace h3 { margin: 0; }
.workspace button { font: inherit; cursor: pointer; }
.workspace button:disabled { cursor: not-allowed; }
.workspace svg { display: block; }
.workspace .absolute { position: absolute; }
.workspace .relative { position: relative; }
.workspace .z-10 { z-index: 10; }
.workspace .flex { display: flex; }
.workspace .grid { display: grid; }
.workspace .flex-col { flex-direction: column; }
.workspace .items-center { align-items: center; }
.workspace .justify-between { justify-content: space-between; }
.workspace .justify-center { justify-content: center; }
.workspace .justify-end { justify-content: flex-end; }
.workspace .grid-cols-1 { grid-template-columns: repeat(1,minmax(0,1fr)); }
.workspace .grid-cols-2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
.workspace .grid-cols-3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
.workspace .grid-cols-5 { grid-template-columns: repeat(5,minmax(0,1fr)); }
.workspace .col-span-5 { grid-column: span 5/span 5; }
.workspace .gap-1\.5 { gap: .375rem; }
.workspace .gap-2 { gap: .5rem; }
.workspace .gap-3 { gap: .75rem; }
.workspace .gap-4 { gap: 1rem; }
.workspace .gap-6 { gap: 1.5rem; }
.workspace .space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }
.workspace .space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.5rem; }
.workspace .w-full { width: 100%; }
.workspace .w-4, .workspace .h-4 { width: 1rem; height: 1rem; }
.workspace .w-5, .workspace .h-5 { width: 1.25rem; height: 1.25rem; }
.workspace .w-24, .workspace .h-24 { width: 6rem; height: 6rem; }
.workspace .w-28, .workspace .h-28 { width: 7rem; height: 7rem; }
.workspace .w-36, .workspace .h-36 { width: 9rem; height: 9rem; }
.workspace .w-40, .workspace .h-40 { width: 10rem; height: 10rem; }
.workspace .h-1 { height: .25rem; }
.workspace .min-h-\[220px\] { min-height: 220px; }
.workspace .min-w-\[70px\] { min-width: 70px; }
.workspace .max-w-xs { max-width: 20rem; }
.workspace .max-w-md { max-width: 28rem; }
.workspace .max-w-xl { max-width: 36rem; }
.workspace .aspect-square { aspect-ratio: 1/1; }
.workspace .p-1 { padding: .25rem; }
.workspace .p-2 { padding: .5rem; }
.workspace .p-2\.5 { padding: .625rem; }
.workspace .p-4 { padding: 1rem; }
.workspace .p-5 { padding: 1.25rem; }
.workspace .p-8 { padding: 2rem; }
.workspace .px-2\.5 { padding-inline: .625rem; }
.workspace .px-3 { padding-inline: .75rem; }
.workspace .px-8 { padding-inline: 2rem; }
.workspace .py-1 { padding-block: .25rem; }
.workspace .py-1\.5 { padding-block: .375rem; }
.workspace .py-2 { padding-block: .5rem; }
.workspace .py-3 { padding-block: .75rem; }
.workspace .py-3\.5 { padding-block: .875rem; }
.workspace .py-4 { padding-block: 1rem; }
.workspace .pt-2 { padding-top: .5rem; }
.workspace .mb-1 { margin-bottom: .25rem; }
.workspace .mb-2 { margin-bottom: .5rem; }
.workspace .mb-3 { margin-bottom: .75rem; }
.workspace .mb-4 { margin-bottom: 1rem; }
.workspace .mb-6 { margin-bottom: 1.5rem; }
.workspace .mb-8 { margin-bottom: 2rem; }
.workspace .mt-0\.5 { margin-top: .125rem; }
.workspace .mt-2 { margin-top: .5rem; }
.workspace .border { border: 1px solid var(--line); }
.workspace .rounded { border-radius: .25rem; }
.workspace .rounded-lg { border-radius: .5rem; }
.workspace .rounded-xl { border-radius: .75rem; }
.workspace .rounded-2xl { border-radius: 1rem; }
.workspace .rounded-full { border-radius: 9999px; }
.workspace .text-left { text-align: left; }
.workspace .text-center { text-align: center; }
.workspace .text-\[8px\] { font-size: 8px; }
.workspace .text-\[9px\] { font-size: 9px; }
.workspace .text-\[10px\] { font-size: 10px; }
.workspace .text-\[11px\] { font-size: 11px; }
.workspace .text-xs { font-size: .75rem; line-height: 1rem; }
.workspace .text-sm { font-size: .875rem; line-height: 1.25rem; }
.workspace .text-base { font-size: 1rem; line-height: 1.5rem; }
.workspace .text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.workspace .text-2xl { font-size: 1.5rem; line-height: 2rem; }
.workspace .text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.workspace .text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.workspace .text-5xl { font-size: 3rem; line-height: 1; }
.workspace .font-normal { font-weight: 400; }
.workspace .font-semibold { font-weight: 600; }
.workspace .font-bold { font-weight: 700; }
.workspace .font-extrabold { font-weight: 800; }
.workspace .font-black { font-weight: 900; }
.workspace .italic { font-style: italic; }
.workspace .uppercase { text-transform: uppercase; }
.workspace .tracking-wider { letter-spacing: .05em; }
.workspace .tracking-widest { letter-spacing: .1em; }
.workspace .select-none { user-select: none; }
.workspace .appearance-none { appearance: none; }
.workspace .cursor-pointer { cursor: pointer; }
.workspace .transition-all { transition: all .15s cubic-bezier(.4,0,.2,1); }
.workspace .transition-transform { transition: transform .15s cubic-bezier(.4,0,.2,1); }
.workspace .duration-100 { transition-duration: .1s; }
.workspace .duration-\[4000ms\] { transition-duration: 4s; }
.workspace .scale-100 { transform: scale(1); }
.workspace .scale-\[1\.06\] { transform: scale(1.06); }
.workspace .scale-\[1\.25\] { transform: scale(1.25); }
.workspace .scale-90 { transform: scale(.9); }
.workspace .bg-indigo-500 { background: #6366f1; }
.workspace .bg-red-600 { background: #dc2626; }
.workspace .bg-blue-600 { background: #2563eb; }
.workspace .bg-emerald-600 { background: #059669; }
.workspace .bg-yellow-500 { background: #eab308; }
.workspace .text-white { color: white; }
.workspace .text-amber-400 { color: #b77900; }
.workspace .text-blue-400, .workspace .text-blue-500 { color: #2563eb; }
.workspace .text-emerald-400 { color: #137b48; }
.workspace .text-yellow-400 { color: #926c00; }
.workspace .text-red-200, .workspace .text-red-300, .workspace .text-red-500 { color: #c83333; }
.workspace .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.workspace .grid-cell:disabled { opacity: .9; }
.workspace .active\:scale-95:active { transform: scale(.95); }

/* Restyle neutral exercise surfaces without changing the game color signals. */
.workspace [class*="bg-slate-95"], .workspace [class*="bg-slate-90"] { background-color: var(--bg); }
.workspace [class*="border-slate-"] { border-color: var(--line); }
.workspace [class*="text-slate-1"], .workspace [class*="text-slate-2"], .workspace [class*="text-slate-3"] { color: var(--text); }
.workspace [class*="text-slate-4"], .workspace [class*="text-slate-5"] { color: var(--muted); }
.workspace [class*="text-indigo-"], .workspace [class*="text-purple-"] { color: var(--accent); }
.workspace h2, .workspace h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.03em; }
.workspace .rounded-2xl, .workspace .rounded-xl { border-radius: 18px; }
.workspace button { box-shadow: none; }
.workspace button.bg-gradient-to-r { background: var(--text); color: var(--bg); border-radius: 999px; }
.workspace button.bg-gradient-to-r:hover { background: var(--accent); }
.workspace button[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.workspace button[aria-pressed="false"] { border-color: var(--line); }
.workspace [class*="text-red-2"], .workspace [class*="text-red-3"] { color: #a32f30; }
.workspace #volume { background: #cad5ca; accent-color: var(--accent); }
.workspace #timer-display { font-weight: 500; font-variant-numeric: tabular-nums; }
.breathing-circle { transition: transform 4s cubic-bezier(.4,0,.2,1); }
.workspace #breathing-ball { background: var(--accent-soft); border-color: var(--accent); border-radius: 50%; box-shadow: 0 0 0 12px color-mix(in srgb, var(--accent) 8%, transparent); }
.workspace .grid-cell[class~="bg-slate-800/80"] { background: var(--bg); border-color: var(--line); }
.workspace .grid-cell[class~="bg-slate-800/80"]:enabled:hover { background: var(--accent-soft); }
.workspace .schulte-cell { color: var(--text); }
.workspace .schulte-cell:disabled { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.workspace #stroop-word-container { text-align: center; max-width: 100%; }
.workspace #stroop-word { overflow-wrap: anywhere; }
.workspace #stroop-word.text-yellow-400 { color: #926c00; }
.workspace #stroop-word.text-emerald-400 { color: #137b48; }
.workspace #stroop-word.text-blue-500 { color: #245ed1; }
.workspace #stroop-word.text-red-500 { color: #c83333; }
.workspace [id$="score"], .workspace [id$="timer"] { color: var(--accent); }

@media(max-width:1050px) {
    .shell { width: calc(100% - 48px); }
    .intro { gap: 35px; }
    .dashboard { grid-template-columns: 180px minmax(0,1fr); gap: 18px; }
    #pane-calm-chamber > .grid { grid-template-columns: 1fr; }
    #pane-calm-chamber > .flex { flex-direction: column; align-items: stretch; }
}
@media(max-width:760px) {
    .header-inner { min-height: 70px; }
    .intro { grid-template-columns: 1fr; gap: 22px; padding: 30px 0; }
    .intro h1 { font-size: 34px; }
    .dashboard { grid-template-columns: 1fr; gap: 14px; }
    .module-nav { position: sticky; top: 70px; z-index: 40; padding: 8px 0; background: var(--bg); border-bottom: 1px solid var(--line); }
    .module-nav > .nav-title { display: none; }
    .tab-list { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 5px; }
    .training-tab { grid-template-columns: 1fr; gap: 3px; text-align: center; padding: 10px 4px; }
    .tab-description { display: none; }
    .tab-name { font-size: 11px; }
    .records { display: none; }
    .records .nav-title { display: none; }
    .record-row { gap: 6px; font-size: 10px; }
    .workspace { padding: 18px; scroll-margin-top: 150px; }
    .tab-pane > .flex:first-child { flex-wrap: wrap; gap: 14px; }
    .training-tab { min-height: 52px; touch-action: manipulation; }
    .workspace button { min-height: 44px; touch-action: manipulation; }
    .workspace .grid-cell, .workspace .schulte-cell { min-height: 0; }
    #pane-calm-chamber > .grid { grid-template-columns: 1fr; }
    #pane-calm-chamber > .flex { flex-direction: column; align-items: stretch; }
    #pane-calm-chamber > .flex > .flex:last-child { flex-wrap: wrap; justify-content: center; }
    .footer-inner { flex-direction: column; gap: 8px; }
}
@media(min-width:768px) {
    .workspace .md\:w-auto { width: auto; }
    .workspace .md\:max-w-sm { max-width: 24rem; }
    .workspace .md\:grid-cols-2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .workspace .md\:grid-cols-4 { grid-template-columns: repeat(4,minmax(0,1fr)); }
    .workspace .md\:flex-row { flex-direction: row; }
    .workspace .md\:text-5xl { font-size: 3rem; line-height: 1; }
}
@media(max-width:420px) {
    .shell { width: calc(100% - 28px); }
    .back-link { font-size: 11px; }
    .workspace { padding: 14px; }
    #pane-stroop-challenge > .relative { padding: 24px 12px; }
    #pane-calm-chamber > .flex > .flex:last-child { flex-wrap: wrap; justify-content: center; gap: 12px; }
}
@media(prefers-reduced-motion:reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}