/**
 * STP Instructors — استایل سمت کاربر
 * هماهنگ با پوسته‌ی SmartTradePath (تم تیره، طلایی/قرمز، RTL، Vazirmatn)
 */

.sti-grid-wrap,
.sti-single {
	--sti-bg: #0a0a0b;
	--sti-bg-soft: #111113;
	--sti-card: #161618;
	--sti-card-2: #1c1c1f;
	--sti-border: #28282c;
	--sti-red-600: #e63946;
	--sti-red-500: #ef4453;
	--sti-gold-400: #ffb020;
	--sti-orange-500: #ff6b35;
	--sti-green: #1fce8c;
	--sti-ink: #f2f2f4;
	--sti-ink-soft: #9a9aa3;
	--sti-ink-dim: #5f5f68;
	--sti-radius: 16px;
	--sti-radius-sm: 10px;
	--sti-grad: linear-gradient(135deg, var(--sti-gold-400), var(--sti-red-600));

	color: var(--sti-ink);
	font-family: 'Vazirmatn', 'IRANSans', Tahoma, sans-serif;
	line-height: 1.9;
	direction: rtl;
	text-align: right;
	box-sizing: border-box;
}

.sti-grid-wrap *,
.sti-single * {
	box-sizing: border-box;
}

.sti-grid-wrap a,
.sti-single a {
	text-decoration: none;
	color: inherit;
	transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
}

/* =========================================================
   گرید اساتید
   ========================================================= */

.sti-grid-header {
	display: flex;
	align-items: center;
	gap: 14px;
	margin-bottom: 26px;
}

.sti-grid-title {
	margin: 0;
	font-size: 1.55rem;
	font-weight: 800;
	color: var(--sti-ink);
	white-space: nowrap;
}

.sti-grid-divider {
	flex: 1;
	height: 2px;
	background: linear-gradient(90deg, var(--sti-border), transparent);
}

.sti-grid {
	display: grid;
	grid-template-columns: repeat(var(--sti-cols, 3), minmax(0, 1fr));
	gap: 22px;
}

.sti-empty,
.sti-empty-list {
	color: var(--sti-ink-soft);
	text-align: center;
	padding: 40px 16px;
	background: var(--sti-card);
	border: 1px dashed var(--sti-border);
	border-radius: var(--sti-radius);
}

/* کارت */
.sti-card {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.sti-card:hover {
	transform: translateY(-4px);
	border-color: var(--sti-gold-400);
	box-shadow: 0 14px 34px rgba(0, 0, 0, .45);
}

.sti-card-photo {
	position: relative;
	display: block;
	aspect-ratio: 1 / 1;
	overflow: hidden;
	background: var(--sti-card-2);
}

.sti-card-photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform .35s ease;
}

.sti-card:hover .sti-card-photo img {
	transform: scale(1.06);
}

.sti-card-badge {
	position: absolute;
	inset-inline-start: 12px;
	inset-block-start: 12px;
	background: rgba(10, 10, 11, .82);
	color: var(--sti-gold-400);
	border: 1px solid var(--sti-border);
	padding: 4px 10px;
	border-radius: 999px;
	font-size: .82rem;
	font-weight: 700;
	backdrop-filter: blur(4px);
}

.sti-card-body {
	padding: 16px 16px 18px;
	display: flex;
	flex-direction: column;
	gap: 8px;
	flex: 1;
}

.sti-card-name {
	font-size: 1.12rem;
	font-weight: 800;
	color: var(--sti-ink);
}

.sti-card-name:hover {
	color: var(--sti-gold-400);
}

.sti-card-role {
	color: var(--sti-ink-soft);
	font-size: .9rem;
	margin-top: -2px;
}

.sti-card-site {
	color: var(--sti-ink-soft);
	font-size: .84rem;
	direction: ltr;
	text-align: right;
	unicode-bidi: plaintext;
}

.sti-card-site:hover {
	color: var(--sti-gold-400);
}

.sti-card-course {
	background: var(--sti-card-2);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius-sm);
	padding: 10px 12px;
	margin-top: 4px;
}

.sti-course-label {
	color: var(--sti-orange-500);
	font-size: .74rem;
	font-weight: 700;
	margin-bottom: 3px;
}

.sti-course-title {
	font-weight: 700;
	font-size: .95rem;
	color: var(--sti-ink);
}

.sti-course-desc {
	color: var(--sti-ink-soft);
	font-size: .82rem;
	margin-top: 4px;
}

.sti-card-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-top: 4px;
}

.sti-meta-pill {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	background: var(--sti-card-2);
	border: 1px solid var(--sti-border);
	border-radius: 999px;
	padding: 4px 9px;
	font-size: .78rem;
	color: var(--sti-ink-soft);
}

.sti-meta-pill .sti-stars {
	font-size: .72rem;
}

.sti-meta-num {
	color: var(--sti-gold-400);
	font-weight: 700;
}

.sti-stars {
	color: var(--sti-gold-400);
	display: inline-flex;
	gap: 2px;
	white-space: nowrap;
}

.sti-stars .fa-regular {
	color: var(--sti-ink-dim);
}

.sti-card-socials {
	display: flex;
	gap: 8px;
	margin-top: 4px;
}

.sti-card-socials a,
.sti-hero-socials a {
	width: 34px;
	height: 34px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: var(--sti-card-2);
	border: 1px solid var(--sti-border);
	color: var(--sti-ink-soft);
	font-size: .95rem;
}

.sti-card-socials a:hover,
.sti-hero-socials a:hover {
	color: #fff;
	border-color: transparent;
	background: var(--sti-grad);
	transform: translateY(-2px);
}

.sti-card-btn {
	margin-top: auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 10px 14px;
	border-radius: var(--sti-radius-sm);
	background: var(--sti-card-2);
	border: 1px solid var(--sti-border);
	color: var(--sti-ink);
	font-weight: 700;
	font-size: .9rem;
}

.sti-card-btn:hover {
	background: var(--sti-grad);
	color: #fff;
	border-color: transparent;
}

/* صفحه‌بندی */
.sti-pagination {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 8px;
	margin-top: 30px;
}

.sti-page-btn {
	min-width: 40px;
	height: 40px;
	padding: 0 12px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--sti-radius-sm);
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	color: var(--sti-ink-soft);
	font-weight: 700;
}

.sti-page-btn:hover {
	border-color: var(--sti-gold-400);
	color: var(--sti-ink);
}

.sti-page-current {
	background: var(--sti-grad);
	color: #fff;
	border-color: transparent;
}

/* =========================================================
   صفحه اختصاصی استاد
   ========================================================= */

.sti-single {
	max-width: 1080px;
	margin: 0 auto;
	padding: 20px 16px 60px;
}

/* هیرو */
.sti-hero {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	padding: 28px;
	margin-bottom: 22px;
}

.sti-hero-inner {
	display: flex;
	gap: 24px;
	align-items: flex-start;
}

.sti-hero-photo {
	flex: 0 0 150px;
	width: 150px;
	height: 150px;
	border-radius: 20px;
	overflow: hidden;
	border: 2px solid var(--sti-border);
	background: var(--sti-card-2);
}

.sti-hero-photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.sti-hero-info {
	flex: 1;
	min-width: 0;
}

.sti-hero-name {
	margin: 0 0 6px;
	font-size: 1.8rem;
	font-weight: 800;
	color: var(--sti-ink);
}

.sti-hero-role {
	color: var(--sti-orange-500);
	font-weight: 700;
	margin-bottom: 10px;
}

.sti-hero-rating {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 12px;
	flex-wrap: wrap;
}

.sti-hero-rating .sti-stars {
	font-size: 1.05rem;
}

.sti-hero-rating-num {
	font-weight: 800;
	color: var(--sti-gold-400);
	font-size: 1.05rem;
}

.sti-hero-rating-count {
	color: var(--sti-ink-soft);
	font-size: .88rem;
}

.sti-hero-socials {
	display: flex;
	gap: 8px;
}

.sti-hero-desc {
	margin-top: 18px;
	padding-top: 18px;
	border-top: 1px solid var(--sti-border);
	color: var(--sti-ink-soft);
}

.sti-hero-desc p {
	margin: 0 0 10px;
}

/* بخش معرفی دوره */
.sti-course-section {
	margin-bottom: 22px;
}

.sti-sec-title {
	font-size: 1.25rem;
	font-weight: 800;
	margin: 0 0 14px;
	display: flex;
	align-items: center;
	gap: 10px;
	color: var(--sti-ink);
}

.sti-sec-title i {
	color: var(--sti-gold-400);
}

.sti-course-card {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	padding: 22px;
}

.sti-course-h {
	color: var(--sti-orange-500);
	font-size: .82rem;
	font-weight: 700;
	margin-bottom: 4px;
}

.sti-course-name {
	font-size: 1.15rem;
	font-weight: 800;
	color: var(--sti-ink);
	margin-bottom: 12px;
}

.sti-course-summary {
	color: var(--sti-ink-soft);
}

.sti-course-summary p {
	margin: 0 0 10px;
}

.sti-course-link {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin-top: 12px;
	padding: 10px 18px;
	border-radius: var(--sti-radius-sm);
	background: var(--sti-grad);
	color: #fff;
	font-weight: 700;
}

.sti-course-link:hover {
	filter: brightness(1.08);
	transform: translateY(-2px);
}

/* منوی شناور (سبک دیجی‌کالا) */
.sti-floating-nav {
	position: sticky;
	top: 0;
	z-index: 40;
	background: rgba(17, 17, 19, .92);
	backdrop-filter: blur(10px);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	margin-bottom: 22px;
	opacity: 0;
	transform: translateY(-10px);
	pointer-events: none;
	max-height: 0;
	overflow: hidden;
	transition: opacity .3s ease, transform .3s ease, max-height .3s ease, padding .3s ease;
	padding: 0 18px;
}

.sti-floating-nav.is-visible {
	opacity: 1;
	transform: translateY(0);
	pointer-events: auto;
	max-height: 90px;
	padding: 10px 18px;
}

.sti-floating-inner {
	display: flex;
	align-items: center;
	gap: 16px;
}

.sti-fnav-name {
	font-weight: 800;
	color: var(--sti-ink);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	max-width: 30%;
}

.sti-fnav-tabs {
	display: flex;
	gap: 8px;
	margin-inline-start: auto;
	flex-wrap: wrap;
}

.sti-fnav-tab {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 8px 16px;
	border-radius: var(--sti-radius-sm);
	background: transparent;
	border: 1px solid transparent;
	color: var(--sti-ink-soft);
	font-family: inherit;
	font-size: .95rem;
	font-weight: 700;
	cursor: pointer;
}

.sti-fnav-tab:hover {
	color: var(--sti-ink);
}

.sti-fnav-tab.is-active {
	color: var(--sti-ink);
	border-color: var(--sti-border);
	background: var(--sti-card-2);
	border-bottom: 2px solid var(--sti-gold-400);
}

.sti-fnav-badge {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: 999px;
	padding: 1px 8px;
	font-size: .78rem;
	color: var(--sti-gold-400);
}

/* تب‌ها و ستون‌ها */
.sti-tab-panel {
	display: none;
}

.sti-tab-panel.is-active {
	display: block;
	animation: sti-fade .3s ease;
	/*
	 * رزرو ارتفاع: تب «پرسش و پاسخ» معمولاً کوتاه است و با فعال‌شدنش صفحه کوتاه می‌شد،
	 * درنتیجه منوی شناور جای کافی برای چسبیدن به بالا را از دست می‌داد و ناپدید می‌شد.
	 * با تضمین حداقل ارتفاع به‌اندازهٔ یک صفحهٔ نمایش، منو همیشه چسبیده و در دسترس می‌ماند
	 * تا بتوان بین «دیدگاه‌ها» و «پرسش و پاسخ» آزادانه جابه‌جا شد.
	 */
	min-height: calc(100vh - 60px);
}

@keyframes sti-fade {
	from { opacity: 0; transform: translateY(8px); }
	to { opacity: 1; transform: translateY(0); }
}

.sti-columns {
	display: grid;
	grid-template-columns: 360px 1fr;
	gap: 22px;
	align-items: start;
}

.sti-col-form {
	position: sticky;
	top: 90px;
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.sti-panel {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	padding: 20px;
}

.sti-panel h3 {
	margin: 0 0 14px;
	font-size: 1.05rem;
	font-weight: 800;
	color: var(--sti-ink);
}

/* ویجت امتیاز */
.sti-rating-big {
	display: flex;
	align-items: center;
	gap: 14px;
	padding-bottom: 14px;
	margin-bottom: 14px;
	border-bottom: 1px solid var(--sti-border);
}

.sti-rating-avg {
	font-size: 2.4rem;
	font-weight: 800;
	color: var(--sti-gold-400);
	line-height: 1;
}

.sti-rating-side .sti-stars {
	font-size: 1.05rem;
}

.sti-rating-total {
	display: block;
	color: var(--sti-ink-soft);
	font-size: .84rem;
	margin-top: 4px;
}

.sti-your-rating {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}

.sti-your-rating > span {
	color: var(--sti-ink-soft);
	font-size: .9rem;
}

.sti-stars-interactive {
	display: inline-flex;
	gap: 4px;
	direction: ltr;
}

.sti-star {
	background: none;
	border: none;
	padding: 2px;
	cursor: pointer;
	color: var(--sti-ink-dim);
	font-size: 1.5rem;
	line-height: 1;
	transition: transform .15s ease, color .15s ease;
}

.sti-star:hover {
	transform: scale(1.15);
}

.sti-star.sti-star-on {
	color: var(--sti-gold-400);
}

.sti-rating-msg,
.sti-form-msg {
	margin-top: 10px;
	font-size: .86rem;
	min-height: 1.2em;
}

.sti-msg-ok {
	color: var(--sti-green);
}

.sti-msg-err {
	color: var(--sti-red-500);
}

.sti-login-hint {
	color: var(--sti-ink-soft);
	font-size: .9rem;
	margin: 4px 0 0;
}

.sti-login-hint a {
	color: var(--sti-gold-400);
	font-weight: 700;
}

/* فرم‌ها */
.sti-form textarea {
	width: 100%;
	background: var(--sti-bg-soft);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius-sm);
	color: var(--sti-ink);
	padding: 12px 14px;
	font-family: inherit;
	font-size: .95rem;
	line-height: 1.8;
	resize: vertical;
	outline: none;
}

.sti-form textarea:focus {
	border-color: var(--sti-gold-400);
	box-shadow: 0 0 0 3px rgba(255, 176, 32, .12);
}

.sti-form-foot {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-top: 10px;
	flex-wrap: wrap;
}

.sti-form-note {
	color: var(--sti-ink-dim);
	font-size: .8rem;
}

.sti-submit-btn {
	background: var(--sti-grad);
	color: #fff;
	border: none;
	border-radius: var(--sti-radius-sm);
	padding: 10px 22px;
	font-family: inherit;
	font-weight: 700;
	font-size: .92rem;
	cursor: pointer;
	transition: filter .2s ease, transform .2s ease, opacity .2s ease;
}

.sti-submit-btn:hover {
	filter: brightness(1.08);
	transform: translateY(-1px);
}

.sti-submit-btn:disabled {
	opacity: .6;
	cursor: default;
	transform: none;
}

/* فهرست دیدگاه/پرسش */
.sti-list-head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: 14px;
}

.sti-list-head h3 {
	margin: 0;
	font-size: 1.15rem;
	font-weight: 800;
	color: var(--sti-ink);
}

.sti-list-count {
	color: var(--sti-ink-soft);
	font-size: .86rem;
}

.sti-list {
	display: flex;
	flex-direction: column;
	gap: 14px;
}

/* آیتم دیدگاه */
.sti-review-item {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	padding: 16px 18px;
}

.sti-review-head {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 8px;
}

.sti-avatar {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background: var(--sti-grad);
	color: #fff;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-weight: 800;
	font-size: 1rem;
	flex: 0 0 40px;
}

.sti-review-meta {
	display: flex;
	flex-direction: column;
	line-height: 1.5;
}

.sti-review-author {
	font-weight: 700;
	color: var(--sti-ink);
}

.sti-review-date {
	color: var(--sti-ink-dim);
	font-size: .78rem;
}

.sti-review-stars {
	margin-inline-start: auto;
	font-size: .85rem;
}

.sti-review-body {
	color: var(--sti-ink-soft);
	font-size: .95rem;
}

/* آیتم پرسش و پاسخ */
.sti-qa-item {
	background: var(--sti-card);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius);
	padding: 16px 18px;
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.sti-qa-question,
.sti-qa-answer {
	display: flex;
	gap: 12px;
}

.sti-qa-answer {
	padding-top: 12px;
	border-top: 1px dashed var(--sti-border);
	padding-inline-start: 8px;
}

.sti-qa-badge {
	flex: 0 0 30px;
	width: 30px;
	height: 30px;
	border-radius: 8px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-weight: 800;
	font-size: .85rem;
}

.sti-qa-badge-q {
	background: rgba(255, 176, 32, .14);
	color: var(--sti-gold-400);
	border: 1px solid rgba(255, 176, 32, .3);
}

.sti-qa-badge-a {
	background: rgba(31, 206, 140, .14);
	color: var(--sti-green);
	border: 1px solid rgba(31, 206, 140, .3);
}

.sti-qa-content {
	min-width: 0;
	flex: 1;
}

.sti-qa-meta {
	display: flex;
	align-items: baseline;
	gap: 10px;
	margin-bottom: 4px;
}

.sti-qa-author {
	font-weight: 700;
	color: var(--sti-ink);
	font-size: .9rem;
}

.sti-qa-admin {
	color: var(--sti-green);
}

.sti-qa-date {
	color: var(--sti-ink-dim);
	font-size: .76rem;
}

.sti-qa-text {
	color: var(--sti-ink-soft);
	font-size: .95rem;
}

/* دکمه بارگذاری بیشتر */
.sti-load-more {
	display: block;
	width: 100%;
	margin-top: 16px;
	padding: 12px;
	background: var(--sti-card-2);
	border: 1px solid var(--sti-border);
	border-radius: var(--sti-radius-sm);
	color: var(--sti-ink);
	font-family: inherit;
	font-weight: 700;
	font-size: .9rem;
	cursor: pointer;
}

.sti-load-more:hover {
	border-color: var(--sti-gold-400);
	color: var(--sti-gold-400);
}

.sti-load-more:disabled {
	opacity: .6;
	cursor: default;
}

/* =========================================================
   واکنش‌گرا
   ========================================================= */

@media (max-width: 900px) {
	.sti-columns {
		grid-template-columns: 1fr;
	}
	.sti-col-form {
		position: static;
	}
	.sti-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
	}
}

@media (max-width: 600px) {
	.sti-grid {
		grid-template-columns: 1fr !important;
	}
	.sti-hero {
		padding: 20px;
	}
	.sti-hero-inner {
		flex-direction: column;
		align-items: center;
		text-align: center;
	}
	.sti-hero-photo {
		flex-basis: 130px;
		width: 130px;
		height: 130px;
	}
	.sti-hero-rating,
	.sti-hero-socials {
		justify-content: center;
	}
	.sti-fnav-name {
		display: none;
	}
	.sti-fnav-tabs {
		width: 100%;
		margin-inline-start: 0;
	}
	.sti-fnav-tab {
		flex: 1;
		justify-content: center;
	}
}