.pdd{color-scheme:light dark;--pdd-card-w: min(320px, 82vw);--pdd-deck-step: 1px;--pdd-radius: 18px;--pdd-text: light-dark(#0e2638, #e6eef4);--pdd-muted: light-dark(#4f6678, #9fb4c4);--pdd-paper: light-dark(#fffaf2, #0f2b40);--pdd-paper-edge: light-dark(#e6dcc8, #234a64);--pdd-accent: light-dark(#1b6b4f, #74d1a4);--pdd-on-accent: light-dark(#ffffff, #05261a);--pdd-focus: #f6eedb;--pdd-shadow: light-dark(0 10px 30px rgb(1 42 69 / .22), 0 12px 34px rgb(0 0 0 / .5));--pdd-page-text: var(--pdd-text);--pdd-page-muted: var(--pdd-muted);--pdd-back-1: #1f6a51;--pdd-back-2: #123f33;--pdd-back-frame: light-dark(#f6eedb, #e9dfc6);--pdd-back-line: var(--pdd-back-ink);--pdd-back-ink: #f6eedb;--pdd-back-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='80' viewBox='0 0 64 80' fill-opacity='.22'%3E%3Cpath d='M0-20 21 0 0 20-21 0ZM64-20l21 20-21 20-21-20ZM0 60l21 20-21 20-21-20ZM64 60l21 20-21 20-21-20ZM32 10l16.5 12-2.5 18 2.5 18L32 70 15.5 58 18 40l-2.5-18Z'/%3E%3C/svg%3E");--pdd-font-display: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", sans-serif;--pdd-font-body: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", sans-serif;color:var(--pdd-text);font-family:var(--pdd-font-body);display:flex;flex-direction:column;align-items:center;gap:1rem;padding:1rem 0}:root[data-theme=light] .pdd,.pdd[data-theme=light]{color-scheme:light}:root[data-theme=dark] .pdd,.pdd[data-theme=dark]{color-scheme:dark}.pdd *,.pdd *:before,.pdd *:after{box-sizing:border-box}.pdd__header{text-align:center;color:var(--pdd-page-text);margin-bottom:1rem}.pdd__title{margin:0;font-family:var(--pdd-font-display);font-size:clamp(2rem,9vw,2.5rem);font-weight:700;line-height:1.1;letter-spacing:-.01em}.pdd__date{margin:.35rem 0 0;color:var(--pdd-page-muted);font-size:1.1rem}.pdd__date:first-letter{text-transform:uppercase}.pdd__stage{position:relative;width:var(--pdd-card-w);aspect-ratio:5 / 7;margin-bottom:calc(var(--pdd-deck-layers, 0) * var(--pdd-deck-step) + 6px);perspective:1400px}.pdd__deck-card{--edge: color-mix(in srgb, var(--pdd-back-frame) calc(100% - var(--i) * .45%), #4a3c28);position:absolute;top:0;right:0;bottom:0;left:0;border-radius:var(--pdd-radius);background:var(--edge);box-shadow:0 .5px #281c0c4d;transform:translate(var(--x, 0),calc(var(--i) * var(--pdd-deck-step))) rotate(var(--r, 0))}.pdd__deck-card:nth-child(2n){background:color-mix(in srgb,var(--edge) 88%,#6b5a40)}.pdd__deck-card:first-child{box-shadow:var(--pdd-shadow)}.pdd__face--back,.pdd__deck-card.pdd__deck-card--top{border-radius:var(--pdd-radius);background:var(--pdd-back-pattern) center / 40px 50px,radial-gradient(120% 90% at 30% 20%,rgb(255 255 255 / .1),transparent 60%),linear-gradient(160deg,var(--pdd-back-1),var(--pdd-back-2));border:7px solid var(--pdd-back-frame);box-shadow:0 1px #00000014,var(--pdd-shadow)}.pdd__face--back:after,.pdd__deck-card--top:after{content:"";position:absolute;top:5px;right:5px;bottom:5px;left:5px;border:1.5px solid var(--pdd-back-line);border-radius:calc(var(--pdd-radius) - 10px);box-shadow:inset 0 0 0 3px #0000001f;pointer-events:none}.pdd__deck-card.pdd__deck-card--top{box-shadow:0 .5px #281c0c4d}.pdd__deck-card.pdd__deck-card--top:first-child{box-shadow:var(--pdd-shadow)}.pdd__card{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;perspective:1100px;transform-origin:50% 60%}.pdd__card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .8s cubic-bezier(.3,1.3,.5,1)}.pdd__card.is-flipped .pdd__card-inner{transform:rotateY(180deg)}.pdd__card.is-instant .pdd__card-inner{transition:none}.pdd__card.is-drawing{animation:pdd-draw 1.6s linear both}.pdd__card.is-drawing .pdd__card-inner{transition:none;animation:pdd-flip 1.6s linear both}@keyframes pdd-draw{0%{transform:none;animation-timing-function:cubic-bezier(.35,0,.6,1)}9%{transform:translate(-.5%,-1.8%) rotate(-.8deg) scale(1.01);animation-timing-function:cubic-bezier(.45,0,.25,1)}40%{transform:translate(3%,31%) rotate(2.6deg) scale(1.055);animation-timing-function:cubic-bezier(.4,0,.6,1)}47%{transform:translate(3.4%,32%) rotate(2.2deg) scale(1.06);animation-timing-function:cubic-bezier(.3,0,.2,1)}74%{transform:translate(-.6%,-3.2%) rotate(-1.3deg) scale(1.025);animation-timing-function:cubic-bezier(.35,0,.4,1)}86%{transform:translate(.2%,.9%) rotate(.45deg) scale(1);animation-timing-function:cubic-bezier(.4,0,.5,1)}94%{transform:translateY(-.3%) rotate(-.15deg);animation-timing-function:ease-out}to{transform:none}}@keyframes pdd-flip{0%,44%{transform:rotateY(0);animation-timing-function:cubic-bezier(.55,0,.3,1)}60%{transform:rotateX(9deg) rotateY(98deg) rotate(-2deg);animation-timing-function:cubic-bezier(.2,0,.3,1)}77%{transform:rotateX(-3deg) rotateY(193deg) rotate(.8deg);animation-timing-function:cubic-bezier(.4,0,.5,1)}89%{transform:rotateX(1deg) rotateY(177.5deg) rotate(-.2deg);animation-timing-function:ease-out}to{transform:rotateY(180deg)}}.pdd__card.is-ready .pdd__face--back{cursor:pointer;animation:pdd-nudge 3.5s ease-in-out 1.5s infinite}.pdd__card.is-ready .pdd__face--back:hover,.pdd__card.is-ready .pdd__face--back:focus-visible,.pdd__card.is-turnable .pdd__face--back:hover,.pdd__card.is-turnable .pdd__face--back:focus-visible{animation:none;transform:translateY(-8px) rotate(-1.5deg)}.pdd__card.is-turnable .pdd__face--back{cursor:pointer}@keyframes pdd-nudge{0%,85%,to{transform:none}90%{transform:translateY(-6px) rotate(-1.5deg)}95%{transform:translateY(-2px) rotate(1deg)}}.pdd__face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;-webkit-backface-visibility:hidden}.pdd__face--back{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:1rem;font:inherit;color:var(--pdd-back-ink);transition:transform .25s ease}.pdd__face--back:disabled{cursor:default}.pdd__face--back:focus-visible{outline:4px solid var(--pdd-focus);outline-offset:5px}.pdd__emblem{display:grid;place-items:center;width:42%;aspect-ratio:1;border-radius:50%;border:3px solid var(--pdd-back-line);outline:1.5px solid color-mix(in srgb,var(--pdd-back-line) 55%,transparent);outline-offset:4px;font-family:var(--pdd-font-display);font-size:clamp(2.5rem,12vw,3.5rem);font-weight:700;letter-spacing:.05em;background:var(--pdd-back-2);box-shadow:0 0 0 10px color-mix(in srgb,var(--pdd-back-2) 70%,transparent)}.pdd__cta{font-size:.95rem;font-weight:600;text-shadow:0 1px 2px rgb(0 0 0 / .3)}.pdd__face--front{transform:rotateY(180deg);display:flex;flex-direction:column;gap:.9rem;padding:1.25rem 1.25rem 1rem;border-radius:var(--pdd-radius);background:var(--pdd-paper);border:1px solid var(--pdd-paper-edge);box-shadow:var(--pdd-shadow);overflow-y:auto}.pdd__face--front:before{content:"";position:absolute;top:8px;right:8px;bottom:8px;left:8px;border:1.5px solid var(--pdd-paper-edge);border-radius:calc(var(--pdd-radius) - 6px);pointer-events:none}.pdd__meta{display:flex;gap:.4rem;justify-content:space-between}.pdd__chip{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.2rem .55rem;border-radius:999px;background:color-mix(in srgb,var(--pdd-accent) 12%,transparent);color:var(--pdd-accent)}.pdd__chip--level{background:var(--pdd-accent);color:var(--pdd-on-accent)}.pdd__question{margin:auto 0;font-family:var(--pdd-font-display);font-size:clamp(1.6rem,7vw,2rem);line-height:1.25;font-weight:600;text-align:center;text-wrap:balance}.pdd__actions{display:flex;gap:.4rem;justify-content:center;flex-wrap:wrap}.pdd__btn{font:inherit;font-size:.85rem;font-weight:600;padding:.45rem .7rem;border-radius:999px;border:1.5px solid var(--pdd-paper-edge);background:transparent;color:var(--pdd-text);cursor:pointer}.pdd__btn:hover{border-color:var(--pdd-accent);color:var(--pdd-accent)}.pdd__btn:focus-visible{outline:2px solid var(--pdd-accent);outline-offset:2px}.pdd__btn[aria-expanded=true]{background:var(--pdd-accent);border-color:var(--pdd-accent);color:var(--pdd-on-accent)}.pdd__btn--icon{display:grid;place-items:center;width:2.2rem;padding:0}.pdd__btn--icon svg{width:1.05rem;height:1.05rem}.pdd__help{display:flex;flex-direction:column;gap:.6rem;font-size:.88rem;animation:pdd-fade .25s ease}.pdd__translation{margin:0;text-align:center;font-style:italic;color:var(--pdd-muted)}.pdd__vocab{margin:0;display:grid;gap:.2rem}.pdd__vocab div{display:flex;justify-content:space-between;gap:.75rem;border-bottom:1px dashed var(--pdd-paper-edge);padding-bottom:.15rem}.pdd__vocab dt{font-weight:600}.pdd__vocab dd{margin:0;color:var(--pdd-muted);text-align:right}.pdd__starter{margin:0;text-align:center}.pdd__starter:before{content:"✍️ "}@keyframes pdd-fade{0%{opacity:0;transform:translateY(4px)}}.pdd__footer{display:flex;gap:1rem;align-items:center;justify-content:center;flex-wrap:wrap;font-size:1.1rem;color:var(--pdd-page-muted);min-height:1.5em}.pdd__countdown{font-variant-numeric:tabular-nums;font-weight:600;color:var(--pdd-page-text)}.pdd__streak{font-weight:600;color:var(--pdd-page-text)}@media (prefers-reduced-motion: reduce){.pdd__card-inner,.pdd__face--back{transition:none}.pdd__card.is-drawing,.pdd__card.is-drawing .pdd__card-inner,.pdd__card.is-ready .pdd__face--back,.pdd__help{animation:none}.pdd__card.is-drawing{animation:pdd-fade .01s}}:root{--app-felt: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='f' x='0' y='0' width='100%25' height='100%25' color-interpolation-filters='sRGB'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='4' seed='7' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncR type='linear' slope='.4' intercept='.3'/%3E%3CfeFuncG type='linear' slope='.4' intercept='.3'/%3E%3CfeFuncB type='linear' slope='.4' intercept='.3'/%3E%3CfeFuncA type='linear' slope='0' intercept='1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)'/%3E%3C/svg%3E");--app-mottle: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='640' height='640'%3E%3Cfilter id='m' x='0' y='0' width='100%25' height='100%25' color-interpolation-filters='sRGB'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.012' numOctaves='2' seed='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncR type='linear' slope='.22' intercept='.39'/%3E%3CfeFuncG type='linear' slope='.22' intercept='.39'/%3E%3CfeFuncB type='linear' slope='.22' intercept='.39'/%3E%3CfeFuncA type='linear' slope='0' intercept='1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m)'/%3E%3C/svg%3E")}html{background:var(--app-felt) 0 0 / 160px 160px,var(--app-mottle) 0 0 / 640px 640px,var(--app-bg);background-blend-mode:soft-light,soft-light,normal}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;background:radial-gradient(130% 90% at 50% 35%,transparent 55%,rgb(0 8 20 / .35));pointer-events:none}.pdd{--pdd-page-text: #e6eef4;--pdd-page-muted: #9fb4c4;--pdd-shadow: 0 12px 34px rgb(0 0 0 / .5)}.theme-toggle{position:fixed;top:calc(env(safe-area-inset-top) + 12px);right:calc(env(safe-area-inset-right) + 12px);z-index:10;display:grid;place-items:center;width:44px;height:44px;padding:0;border-radius:50%;border:1px solid rgb(255 255 255 / .16);background:#ffffff14;color:#e6eef4;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);cursor:pointer;transition:transform .2s ease,background-color .2s ease}.theme-toggle:hover{transform:rotate(-12deg);background:#ffffff24}.theme-toggle:focus-visible{outline:3px solid #f6eedb;outline-offset:3px}.theme-toggle svg{width:22px;height:22px}@media (prefers-reduced-motion: reduce){.theme-toggle{transition:none}.theme-toggle:hover{transform:none}}