*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Noto Sans Tamil",sans-serif;background:#f5fbfa;color:#173b3a}
.site-header{position:sticky;top:0;z-index:10;background:#0f766e;color:#fff;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{font-weight:800;font-size:16px}.brand span{display:block;font-size:11px;font-weight:500;opacity:.9}
.back-link{color:#fff;text-decoration:none;background:rgba(255,255,255,.15);padding:8px 12px;border-radius:999px;font-size:13px}
.words-page{max-width:760px;margin:auto;padding:16px}
.words-hero{text-align:center;padding:18px 8px 20px}.eyebrow{display:inline-block;background:#fff3cd;color:#8a5a00;padding:6px 12px;border-radius:999px;font-size:13px;font-weight:800}
.words-hero h1{margin:12px 0 7px;font-size:clamp(25px,7vw,38px);color:#0f766e}.words-hero p{margin:0;color:#55706e;line-height:1.7}
.word-card{background:#fff;border-radius:26px;padding:18px 14px 20px;box-shadow:0 10px 35px rgba(15,118,110,.12);border:1px solid #d8eeea;text-align:center}
.counter{font-size:13px;font-weight:800;color:#0f766e}
.arabic-word{font-family:"Noto Naskh Arabic","Amiri",serif;font-size:clamp(58px,17vw,92px);font-weight:700;line-height:1.35;margin:8px 0 0;color:#123f3d;min-height:125px;display:flex;align-items:center;justify-content:center}
.reading{display:none}.meaning{margin:6px auto 13px;color:#516766;font-size:15px}
.audio-btn{border:0;background:#0f766e;color:#fff;border-radius:999px;padding:12px 20px;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 6px 15px rgba(15,118,110,.2)}
.learn-title{margin:22px 0 10px;font-weight:900;color:#24504d}
.parts{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;direction:ltr}
.part{min-width:72px;background:#eef9f6;border:1px solid #cce9e2;border-radius:15px;padding:7px 9px}
.part-ar{font-family:"Noto Naskh Arabic","Amiri",serif;font-size:30px;font-weight:700;line-height:1.25;color:#145f59}.part-ta{display:none}
.note{margin:17px auto 4px;background:#fff8df;border:1px solid #f3dfa0;border-radius:15px;padding:11px 12px;color:#74571d;font-size:13px;line-height:1.6;max-width:620px}
.nav-buttons{display:flex;gap:10px;margin-top:18px}.nav-buttons button{flex:1;border:0;border-radius:14px;padding:13px 10px;font-size:14px;font-weight:800;background:#e5f2f0;color:#155a55;cursor:pointer}.nav-buttons button:last-child{background:#f3b54a;color:#3f2b00}.nav-buttons button:disabled{opacity:.38;cursor:not-allowed}
.how-card{margin:16px 0;background:#fff;border-radius:22px;padding:18px;border:1px solid #e4eeee}.how-card h2{margin:0 0 10px;font-size:20px;color:#0f766e}.how-card ol{margin:0;padding-left:22px;line-height:1.9;color:#4d6563}.how-card p{background:#f2faf8;border-radius:13px;padding:10px;font-size:13px;line-height:1.6}
.next-stage{margin:12px 0 30px;text-align:center;background:linear-gradient(135deg,#e9f7ff,#fff4dc);border-radius:18px;padding:14px;color:#4e6262;font-size:13px;line-height:1.6}
@media(min-width:650px){.word-card{padding:25px}.arabic-word{min-height:150px}.parts{gap:12px}.part{min-width:88px}}

/* Stage 7 completion UI */
.completion-box{text-align:center;padding:28px 16px}.completion-icon{font-size:54px}.completion-badge{display:inline-block;margin:8px 0;padding:6px 13px;border-radius:999px;background:#dff8eb;color:#11734e;font-weight:900;font-size:13px}.completion-box h2{margin:8px 0;font-size:24px}.completion-box p{color:#64748b}.completion-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}.completion-actions a,.progress-btn{display:inline-block;text-decoration:none;padding:12px 16px;border-radius:13px;font-weight:800}.next-lesson-btn{background:#1464d2;color:#fff}.progress-btn{background:#eef5ff;color:#1464d2}.finish-btn{background:#16a36b!important;color:#fff!important}.completion-inline{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;padding:10px}.completion-inline strong{color:#169a67}.completion-inline a{font-weight:800;color:#1464d2;text-decoration:none}