:root{--bg: #faf7f2;--bg-elevated: #ffffff;--fg: #2a2724;--fg-muted: #7a7268;--accent: #c96442;--accent-soft: #f4e3da;--border: #e8e1d6;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.55;color-scheme:light;color:var(--fg);background:var(--bg)}body{margin:0;min-height:100vh;background:var(--bg)}h1{font-family:ui-serif,Georgia,Times New Roman,serif;font-weight:500;letter-spacing:-.015em;margin:0;font-size:clamp(1.5rem,5vw,2rem);text-align:center}button{font-family:inherit}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.flashcard{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:none;padding:0;width:100%;max-width:560px;perspective:1200px;cursor:pointer;font:inherit;color:inherit}@keyframes flashcard-slide-from-right{0%{transform:translate(48px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes flashcard-slide-from-left{0%{transform:translate(-48px);opacity:0}to{transform:translate(0);opacity:1}}.flashcard-enter-next{animation:flashcard-slide-from-right .28s cubic-bezier(.2,.8,.2,1)}.flashcard-enter-prev{animation:flashcard-slide-from-left .28s cubic-bezier(.2,.8,.2,1)}@media(prefers-reduced-motion:reduce){.flashcard-enter-next,.flashcard-enter-prev{animation:none}}.flashcard-inner{position:relative;display:grid;width:100%;min-height:320px;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.2,.8,.2,1)}.flashcard.is-flipped .flashcard-inner{transform:rotateY(180deg)}.flashcard-face{grid-column:1;grid-row:1;display:flex;align-items:center;justify-content:center;padding:2rem;border-radius:12px;border:1px solid var(--border);background:var(--bg-elevated);backface-visibility:hidden;-webkit-backface-visibility:hidden;text-align:center;font-size:1.05rem;line-height:1.6;box-shadow:0 1px 2px #503c280a,0 8px 24px #503c2814}.flashcard-front{color:var(--fg);font-size:1.4rem;line-height:1.45;font-weight:500}.flashcard-back{transform:rotateY(180deg);background:var(--accent-soft);color:var(--fg);border-color:var(--accent)}.flashcard:hover .flashcard-face{border-color:var(--accent)}@media(max-width:600px){.flashcard-inner{min-height:240px}.flashcard-face{padding:1.25rem;font-size:1rem}.flashcard-front{font-size:1.15rem}}main{max-width:720px;margin:0 auto;padding:clamp(1.5rem,5vw,3rem) clamp(1rem,4vw,1.25rem);display:flex;flex-direction:column;align-items:center;gap:clamp(1.25rem,4vw,2rem)}.deck-controls{display:flex;flex-direction:column;align-items:center;gap:.6rem}.deck-nav{display:flex;gap:.75rem;flex-wrap:wrap;justify-content:center}.deck-controls button,.deck-shuffle{background:var(--bg-elevated);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:.55rem 1.1rem;font-size:.95rem;cursor:pointer;transition:border-color .12s ease,color .12s ease,background .12s ease,transform .12s ease}.deck-controls button:hover:not(:disabled),.deck-shuffle:hover{border-color:var(--accent);color:var(--accent)}.deck-controls button:active:not(:disabled),.deck-shuffle:active{transform:translateY(1px)}.deck-controls button:disabled{cursor:not-allowed;opacity:.4}.deck-counter{font-variant-numeric:tabular-nums;min-width:6ch;text-align:center;color:var(--fg-muted);font-size:.95rem}.deck-shuffle{background:var(--accent);color:var(--bg-elevated);border-color:var(--accent)}.deck-shuffle:hover{background:#b3573a;border-color:#b3573a;color:var(--bg-elevated)}.site-footer{margin-top:auto;padding-top:2rem;font-size:.85rem;color:var(--fg-muted);text-align:center}.site-footer a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .12s ease}.site-footer a:hover{border-bottom-color:var(--accent)}