.sd-box {
	--sd-primary: var(--e-global-color-primary, #4b6cf6);
	--sd-primary-dark: #3a56d4;
	--sd-radius: 14px;
	--sd-border: #e7e9f0;
	--sd-text: #232635;
	--sd-muted: #7a7f92;

	direction: rtl;
	max-width: 560px;
	margin: 24px auto;
	background: #fff;
	border: 1px solid var(--sd-border);
	border-radius: var(--sd-radius);
	padding: 28px;
	box-shadow: 0 8px 30px rgba(30, 40, 90, .06);
	font-family: inherit;
	color: var(--sd-text);
	box-sizing: border-box;
}
.sd-box * { box-sizing: border-box; }

.sd-box-header {
	text-align: center;
	margin-bottom: 22px;
}
.sd-box-header .sd-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 56px;
	height: 56px;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--sd-primary), var(--sd-primary-dark));
	font-size: 26px;
	margin-bottom: 10px;
	box-shadow: 0 6px 18px rgba(75,108,246,.28);
}
.sd-box-header h3 {
	margin: 6px 0 4px;
	font-size: 20px;
	font-weight: 700;
}
.sd-box-header p {
	margin: 0;
	color: var(--sd-muted);
	font-size: 13.5px;
}

.sd-form { margin-top: 6px; }

.sd-field-row {
	display: flex;
	gap: 10px;
}

.sd-captcha-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-top: 12px;
	background: #f7f8fd;
	border: 1.5px dashed var(--sd-border);
	border-radius: 10px;
	padding: 10px 14px;
}

.sd-captcha-question {
	font-weight: 700;
	font-size: 15px;
	white-space: nowrap;
	color: var(--sd-text);
}

.sd-captcha-input {
	max-width: 110px;
	text-align: center;
}

.sd-btn-block {
	width: 100%;
}

.sd-input,
.sd-textarea,
.sd-input-file,
select.sd-input {
	width: 100%;
	border: 1.5px solid var(--sd-border);
	border-radius: 10px;
	padding: 12px 14px;
	font-size: 14.5px;
	background: #fafbfe;
	color: var(--sd-text);
	transition: border-color .15s, box-shadow .15s;
}
.sd-input:focus,
.sd-textarea:focus,
.sd-input-file:focus {
	outline: none;
	border-color: var(--sd-primary);
	box-shadow: 0 0 0 3px rgba(75,108,246,.15);
	background: #fff;
}

.sd-label {
	display: block;
	font-size: 13.5px;
	font-weight: 600;
	margin: 16px 0 8px;
}

.sd-required { color: #e0455a; }

.sd-hint {
	font-size: 12px;
	color: var(--sd-muted);
	margin: 6px 0 0;
}

.sd-btn {
	border: none;
	border-radius: 10px;
	padding: 12px 22px;
	font-size: 14.5px;
	font-weight: 700;
	cursor: pointer;
	white-space: nowrap;
	transition: transform .1s, box-shadow .15s, opacity .15s;
}
.sd-btn:active { transform: scale(0.98); }
.sd-btn:disabled { opacity: .6; cursor: not-allowed; }

.sd-btn-primary {
	background: linear-gradient(135deg, var(--sd-primary), var(--sd-primary-dark));
	color: #fff;
	box-shadow: 0 6px 16px rgba(75,108,246,.3);
}
.sd-btn-primary:hover:not(:disabled) { box-shadow: 0 8px 20px rgba(75,108,246,.4); }

.sd-btn-ghost {
	background: #f1f2f8;
	color: var(--sd-text);
}
.sd-btn-ghost:hover { background: #e7e9f4; }

.sd-message {
	margin-top: 12px;
	font-size: 13.5px;
	min-height: 1px;
}
.sd-message.sd-error { color: #d33; }
.sd-message.sd-success { color: #1e9e5f; }
.sd-message.sd-loading { color: var(--sd-muted); }

.sd-result,
.sd-student-mini {
	margin-top: 18px;
	background: #f7f8fd;
	border-radius: 12px;
	padding: 6px 18px;
}

.sd-result-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 11px 0;
	border-bottom: 1px dashed #e2e4f0;
	font-size: 14px;
}
.sd-result-item:last-child { border-bottom: none; }
.sd-result-item span { color: var(--sd-muted); }
.sd-result-item strong { font-weight: 700; }

.sd-result-score strong {
	color: var(--sd-primary-dark);
	font-size: 18px;
}

.sd-hw-step2 { margin-top: 6px; }

@keyframes sd-fade-in {
	from { opacity: 0; transform: translateY(6px); }
	to { opacity: 1; transform: translateY(0); }
}
.sd-result, .sd-hw-step2 { animation: sd-fade-in .25s ease; }

@media (max-width: 480px) {
	.sd-field-row { flex-direction: column; }
	.sd-captcha-row { flex-wrap: wrap; }
	.sd-box { padding: 20px; }
}