.lesson_sections .problems_link {
	border-top: none;
	background: transparent;
}

.lesson_sections .problems_link li a.active {
	background: #428bca;
	color: #fff;
}

.lesson_sections .problems_link li.accepted { background: rgba(255, 250, 7, 0.3); }
.lesson_sections .problems_link li.unsolved { background: rgba(252, 168, 132, 0.3); }


.lesson_name {
	margin-bottom: 10px;
}
.problem_name {
	margin-top: 10px;
}


#example_tests {
	margin-top: 15px;
}

#example_tests th {
	text-align: center;
}

#example_tests pre {
	height: 100%;
	margin: 0;
	margin-top: 10px;
}

#example_tests .arrow,
#example_tests .debug_me {
	width: 24px;
	vertical-align: middle;
	text-align: center;
}
#example_tests .debug_me {
	width: 55px;
}

#example_tests .debug_me button {
	padding: 2px;
	font-size: 20px;
}

#example_tests .test_result {
	width: 135px;
	padding-right: 10px;
	text-align: center;
	vertical-align: middle;
	display: none;
}

.submit_solution {
	margin-bottom: 35px;
}

.submission-status.is-solved { color: green; font-weight: bold; }

/* Result table follows the original: airy white rows, real stdout and snake verdicts. */
#example_tests { width:100%; margin-top:15px; border-collapse:collapse; }
#example_tests > thead > tr > th,
#example_tests > tbody > tr > td { padding:12px; border-top:1px solid #eceeef; border-bottom:0; vertical-align:top; }
#example_tests > tbody > tr.success > td,
#example_tests > tbody > tr.warning > td,
#example_tests > tbody > tr.danger > td,
#example_tests > tbody > tr.active > td { background:#fff; }
#example_tests pre { background:transparent; border:0; border-radius:0; padding:0; margin:10px 0 0; color:#373a3c; font-size:14px; line-height:1.5; max-height:260px; overflow:auto; }
#example_tests td.debug_me { width:165px; text-align:left; }
#example_tests td.debug_me button { padding:8px 12px; font-size:16px; white-space:nowrap; background:#fff; border:1px solid #ccc; border-radius:4px; }
#example_tests .debug_me button:hover { background:#f3f6f8; }
#example_tests .test_output { display:none; min-width:110px; }
#example_tests .test_result { width:110px; min-width:95px; }
#example_tests .test-snake { display:block; width:4em; height:auto; margin:8px auto 0; }
#example_tests tr.success .test_result { color:#7b895d; }
#example_tests tr.warning .test_result, #example_tests tr.danger .test_result { color:#a94442; }
#example_tests tr.active .test_result { color:#777; }

#submission-status, #submission-next-task, #knowledge-unlock { background:transparent; border:0; box-shadow:none; padding:0; }
#knowledge-unlock { margin:12px 0 24px; }