.study-mode-card{max-width:1180px;margin:14px auto;padding:16px 18px;border:1px solid rgba(22,64,47,.1);border-radius:22px;background:linear-gradient(180deg,#fff,#f8fbf9);box-shadow:0 10px 28px rgba(20,62,45,.05)}.sm-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.sm-head>div>span{font-size:9px;font-weight:900;letter-spacing:.13em;color:#8a6d2d}.sm-head h2{margin:3px 0 4px;font-size:20px;color:#183d30}.sm-head p{margin:0;max-width:760px;color:#66756d;font-size:11px;line-height:1.55}.sm-head>small{padding:7px 10px;border-radius:99px;background:#eef4f0;color:#52705f;font-weight:800;white-space:nowrap}.sm-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:13px}.sm-options button{display:flex;align-items:center;gap:9px;text-align:left;padding:11px;border:1px solid #dfe9e3;border-radius:14px;background:#fff;cursor:pointer}.sm-options button>span{width:31px;height:31px;display:grid;place-items:center;border-radius:9px;background:#eef5f1}.sm-options button b{display:block;font-size:11px}.sm-options button small{display:block;margin-top:2px;font-size:9px;color:#7c8982}.sm-options button.active{border-color:#285b43;background:#edf6f0;box-shadow:inset 0 0 0 1px #285b43}.sm-options button.active>span{background:#dbece2}@media(max-width:700px){.study-mode-card{padding:14px;border-radius:18px}.sm-head{display:block}.sm-head>small{display:inline-block;margin-top:8px}.sm-options{grid-template-columns:1fr 1fr}.sm-options button{min-height:56px}}@media(max-width:390px){.study-mode-card{padding:12px 13px}.sm-head p{display:none}.sm-head>small{margin-top:6px;padding:5px 8px}.sm-options{grid-template-columns:1fr 1fr;gap:6px;margin-top:10px}.sm-options button{min-height:54px;padding:8px;gap:7px}.sm-options button>span{width:27px;height:27px}.sm-options button small{display:none}.sm-options button b{font-size:10px}}