/**
 * Rubicone LMS — Frontend Styles
 *
 * @package Rubicone_LMS
 * @since   1.0.0
 */

/* ==========================================================================
   ШРИФТЫ
   ========================================================================== */
@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-Thin.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-Thin.woff') format('woff');
	font-weight: 100;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-ThinItalic.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-ThinItalic.woff') format('woff');
	font-weight: 100;
	font-style: italic;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-Regular.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-Regular.woff') format('woff');
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-RegularItalic.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-RegularItalic.woff') format('woff');
	font-weight: 400;
	font-style: italic;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-Bold.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-Bold.woff') format('woff');
	font-weight: 700;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-BoldItalic.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-BoldItalic.woff') format('woff');
	font-weight: 700;
	font-style: italic;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-ExtraBold.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-ExtraBold.woff') format('woff');
	font-weight: 800;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Zona Pro';
	src: url('../fonts/zona-pro/ZonaPro-ExtraBoldItalic.woff2') format('woff2'),
		url('../fonts/zona-pro/ZonaPro-ExtraBoldItalic.woff') format('woff');
	font-weight: 800;
	font-style: italic;
	font-display: swap;
}

/* ==========================================================================
   ПЕРЕМЕННЫЕ
   ========================================================================== */
:root {
	--rb-primary: #007aff;
	--rb-success: #00C8A9;
	--rb-success-light: #dcfce7;
	--rb-warning: #ff6b35;
	--rb-danger: #e53e3e;
	--rb-bg: #f8fafc;
	--rb-bg-alt: #ffffff;
	--rb-border: #e2e8f0;
	--rb-text: #000000;
	--rb-text-light: #64748b;
	--rb-radius: 7px;
	--rb-transition: all 0.2s ease;
	--rb-sidebar-lesson-page: 6px 6px 0px 0px #00C8A9;
}

/* ==========================================================================
   ХЛЕБНЫЕ КРОШКИ
   ========================================================================== */
.rubicone-breadcrumbs {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 6px;
	padding: 12px 0;
	font-size: 14px;
	color: var(--rb-text-light);
	margin-bottom: 20px;
}

.rubicone-breadcrumbs a {
	color: var(--rb-primary);
	text-decoration: none;
}

.rubicone-breadcrumbs a:hover {
	text-decoration: underline;
}

.rubicone-breadcrumbs .sep {
	color: var(--rb-border);
}

.rubicone-breadcrumbs .current {
	color: var(--rb-text);
	font-weight: 500;
}

/* ==========================================================================
   МАКЕТ СТРАНИЦЫ УРОКА
   ========================================================================== */
.rubicone-lesson-page,
.rubicone-course-page {
	margin: 0 auto;
	padding: 20px;
	font-family: 'Zona Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.rubicone-lesson-page button,
.rubicone-lesson-page input,
.rubicone-lesson-page select,
.rubicone-lesson-page textarea,
.rubicone-course-page button,
.rubicone-course-page input,
.rubicone-course-page select,
.rubicone-course-page textarea {
	font-family: inherit;
}

.rubicone-lesson-layout {
	display: grid;
	grid-template-columns: 320px 1fr;
	gap: 20px;
	align-items: flex-start;
}

@media (max-width: 1024px) {
	.rubicone-lesson-layout {
		grid-template-columns: 1fr;
	}
}

/* ==========================================================================
   БОКОВАЯ ПАНЕЛЬ
   ========================================================================== */
.rubicone-lesson-sidebar {
	position: sticky;
	top: 20px;
	max-height: calc(100vh - 40px);
	overflow-y: auto;
	background: var(--rb-bg-alt);
	border: 1px solid var(--rb-border);
	border-radius: var(--rb-radius);
	box-shadow: 6px 6px 0 0 var(--rb-border);

	/* Firefox */
	scrollbar-width: none;
}

/* Chromium / Safari */
.rubicone-lesson-sidebar::-webkit-scrollbar {
	display: none;
}

.rubicone-sidebar-header {
	padding: 16px;
	border-bottom: 1px solid var(--rb-border);
}

.rubicone-btn.rubicone-back-to-course {
	box-shadow: 3px 3px 0px 0px var(--rb-warning);
	width: 100%;
}

@media (max-width: 1024px) {
	.rubicone-lesson-sidebar {
		position: static;
		max-height: none;
		order: 2;
	}
}

/* ==========================================================================
   ПРОГРАММА КУРСА
   ========================================================================== */
.rubicone-curriculum {
	padding: 0;
}

.rubicone-lesson-sidebar .rubicone-progress-bar-wrap {
	padding: 16px;
}

.rubicone-topic-block {
	margin-bottom: 10px;
	border-top: 1px solid var(--rb-border);
	border-bottom: 1px solid var(--rb-border);
	overflow: hidden;
}

.rubicone-course-detail .rubicone-topic-block {
	border: 1px solid var(--rb-border);
	border-radius: 8px;
}

.rubicone-topic-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 12px 16px;
	background: var(--rb-bg);
	cursor: pointer;
	user-select: none;
}

.rubicone-topic-header h4 {
	margin: 0;
	font-size: 14px;
	font-weight: 600;
	color: var(--rb-text);
}

.rubicone-topic-count {
	font-size: 12px;
	color: var(--rb-text-light);
	flex-shrink: 0;
	margin-left: 8px;
}

.rubicone-topic-items {
	list-style: none;
	margin: 0;
	padding: 0;
}

.rubicone-topic-block.rubicone-topic-collapsed .rubicone-topic-items {
	display: none;
}

.rubicone-item {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 8px 16px;
	font-size: 12px;
	border-top: 1px solid var(--rb-border);
	transition: var(--rb-transition);
}

.rubicone-item:hover {
	background: var(--rb-bg);
}

.rubicone-item a {
	color: var(--rb-text);
	text-decoration: none;
	flex: 1;
}

.rubicone-item a:hover {
	color: var(--rb-primary);
}

.rubicone-item-status {
	font-size: 14px;
	flex-shrink: 0;
	width: 20px;
	text-align: center;
	display: flex;
	align-items: center;
	justify-content: center;
}

.rubicone-item-status-icon {
	display: block;
	width: 16px;
	height: 16px;
	flex-shrink: 0;
}

.rubicone-item-icon {
	font-size: 14px;
	flex-shrink: 0;
}

.rubicone-item-duration {
	font-size: 11px;
	color: var(--rb-text-light);
	margin-left: auto;
	flex-shrink: 0;
}

.rubicone-item-current {
	background: #eff6ff;
}

.rubicone-item-complete a {
	color: var(--rb-text-light);
}

.rubicone-item-locked {
	opacity: 0.7;
}

/* Сертификат — последний элемент в блоке дисциплины, показывается студенту-владельцу */
.rubicone-item-certificate {
	border-top: 1px dashed var(--rb-border, #e5e7eb);
	margin-top: 4px;
	padding-top: 8px;
	font-weight: 600;
}

.rubicone-item-certificate .rubicone-item-cert-icon {
	font-size: 16px;
}

.rubicone-item-certificate a {
	color: var(--rb-primary, #2563eb);
	text-decoration: none;
}

.rubicone-item-certificate a:hover {
	text-decoration: underline;
}

/* ==========================================================================
   TOPIC ACCESS LOCK (закрытая дисциплина)
   ========================================================================== */

.rubicone-topic-block.rubicone-topic-access-locked .rubicone-topic-header {
	background: #fafafa;
}

.rubicone-topic-lock-icon {
	display: inline-flex;
	align-items: center;
	margin-right: 6px;
	color: #8c8f94;
	font-size: 14px;
	line-height: 1;
}

.rubicone-topic-lock-icon::before {
	content: "🔒";
}

.rubicone-topic-block.rubicone-topic-access-locked .rubicone-item {
	opacity: 0.6;
	cursor: not-allowed;
}

/* Когда дисциплина закрыта — ссылок нет, рендерим как <span> с теми же стилями. */
.rubicone-topic-block.rubicone-topic-access-locked .rubicone-item-locked-link {
	color: var(--rb-text-light);
	flex: 1;
	pointer-events: none;
	user-select: none;
}

/* Дополнительная защита: даже если в DOM проскочит <a>, клик-блокируем. */
.rubicone-topic-block.rubicone-topic-access-locked .rubicone-item a {
	pointer-events: none;
	color: var(--rb-text-light);
}

/* Режим наблюдения (родитель): открытая дисциплина видна, но без перехода в урок.
   Текст выглядит как обычный пункт, но не является ссылкой. */
.rubicone-item-readonly-link {
	flex: 1;
	pointer-events: none;
	user-select: none;
}

/* ==========================================================================
   ИНДИКАТОР ПРОГРЕССА
   ========================================================================== */

.rubicone-progress-info {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 6px;
	font-size: 12px;
	color: var(--rb-text-light);
}

.rubicone-progress-value {
	font-weight: 600;
	color: var(--rb-text);
}

.rubicone-progress-bar {
	width: 100%;
	height: 8px;
	background: var(--rb-border);
	border-radius: 4px;
	overflow: hidden;
}

.rubicone-progress-fill {
	height: 100%;
	background: var(--rb-primary);
	border-radius: 4px;
	transition: width 0.5s ease;
	min-width: 0;
}

/* ==========================================================================
   ОБЛАСТЬ СОДЕРЖИМОГО УРОКА
   ========================================================================== */
.rubicone-lesson-content-area {
	background: var(--rb-bg-alt);
	border: 1px solid var(--rb-border);
	border-radius: var(--rb-radius);
	box-shadow: var(--rb-sidebar-lesson-page);
	overflow: hidden;
}

.rubicone-lesson-header {
	padding: 24px 30px 20px;
	border-bottom: 1px solid var(--rb-border);
}

.rubicone-lesson-title {
	margin: 0 0 10px;
	font-size: 24px;
	color: var(--rb-text);
}

.rubicone-lesson-meta {
	display: flex;
	gap: 16px;
	font-size: 14px;
	color: var(--rb-text-light);
}

.rubicone-lesson-body {
	padding: 30px;
}

.rubicone-lesson-text {
	line-height: 1.7;
	color: var(--rb-text);
}

.rubicone-lesson-text p {
	margin: 0 0 16px;
}

.rubicone-lesson-text h2,
.rubicone-lesson-text h3,
.rubicone-lesson-text h4 {
	margin: 24px 0 12px;
	color: var(--rb-text);
}

.rubicone-lesson-text img {
	max-width: 100%;
	height: auto;
	border-radius: var(--rb-radius);
}

.rubicone-lesson-text pre {
	background: #eff6ff;
	padding: 16px;
	border-radius: var(--rb-radius);
	overflow-x: auto;
}

/* ==========================================================================
   ВИДЕО
   ========================================================================== */
.rubicone-lesson-video {
	margin-bottom: 24px;
}

.rubicone-video-wrapper {
	position: relative;
	padding-bottom: 56.25%;
	height: 0;
	overflow: hidden;
	border-radius: var(--rb-radius);
	background: #000;
}

.rubicone-video-wrapper iframe,
.rubicone-video-wrapper video {
	position: absolute;
	top: 0;
	left: 0;
	width: 100% !important;
	height: 100% !important;
}

/* Прямой <video> без обёртки соотношения сторон */
.rubicone-video-wrapper video[controls] {
	position: relative;
	max-width: 100%;
	height: auto;
}

/* ==========================================================================
   ФАЙЛЫ
   ========================================================================== */
.rubicone-lesson-files {
	margin: 24px 0;
}

.rubicone-lesson-files h4 {
	margin: 0 0 12px;
	font-size: 16px;
	color: var(--rb-text);
}

.rubicone-files-list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.rubicone-file-item {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 10px 14px;
	background: #eff6ff;
	border: 1px solid var(--rb-border);
	border-radius: var(--rb-radius);
	margin-bottom: 6px;
	transition: var(--rb-transition);
}

.rubicone-file-item:hover {
	background: var(--rb-bg);
	border-color: var(--rb-primary);
}

.rubicone-file-icon {
	font-size: 18px;
}

.rubicone-file-item a {
	color: var(--rb-text);
	text-decoration: none;
	font-weight: 500;
	flex: 1;
	font-size: 14px;
}

.rubicone-file-item a:hover {
	text-decoration: underline;
}

.rubicone-file-size {
	font-size: 12px;
	color: var(--rb-text-light);
}

/* iframe презентации */
.rubicone-presentation-wrapper {
	margin-bottom: 20px;
}

.rubicone-presentation-wrapper h4 {
	margin: 0 0 10px;
	font-size: 15px;
	font-weight: 600;
}

.rubicone-presentation-wrapper iframe {
	border-radius: var(--rb-radius);
}

.rubicone-file-download {
	margin-top: 8px;
	font-size: 14px;
}

.rubicone-hint {
	color: var(--rb-text-light);
	font-size: 12px;
}

/* ==========================================================================
   ФУТЕР УРОКА — Завершение + Навигация
   ========================================================================== */
.rubicone-lesson-footer {
	padding: 20px 30px;
	border-top: 1px solid var(--rb-border);
	background: var(--rb-bg);
}

.rubicone-complete-wrap {
	text-align: center;
	margin-bottom: 16px;
}

/* Кнопки */
.rubicone-btn {
	display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 14px;
    font-size: 0.85em;
    font-weight: 500;
    color: #111;
    background: #fff;
    border: 1px solid #000;
    border-radius: 7px;
    box-shadow: 3px 3px 0px 0px #000;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.08s ease, box-shadow 0.08s ease;
    white-space: nowrap;
}

.rubicone-btn:active {
	transform: translate(2px, 2px);
	box-shadow: none !important;
}

.rubicone-btn.rubicone-btn-complete {
	box-shadow: 3px 3px 0px 0px #007aff;
}

.rubicone-btn-completed {
	background: transparent;
	color: #000000;
}

.rubicone-btn.rubicone-btn-completed {
	box-shadow: 3px 3px 0px 0px #00C8A9;
}

.rubicone-btn-loading {
	opacity: 0.6;
	pointer-events: none;
}

/* Навигация */
.rubicone-lesson-nav {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.rubicone-lesson-nav a,
.rubicone-lesson-nav span {
	color: var(--rb-text-light);
	text-decoration: none;
	font-size: 12px;
	transition: var(--rb-transition);
}

.rubicone-lesson-nav a {
	width: 50%;
}

.rubicone-lesson-nav a.rubicone-nav-next {
	text-align: right;
}

.rubicone-lesson-nav a.rubicone-nav-prev {
	text-align: left;
}

.rubicone-nav-prev:hover,
.rubicone-nav-next:hover {
	color: var(--rb-primary);
}

/* ==========================================================================
   ДОСТУП ЗАПРЕЩЁН
   ========================================================================== */
.rubicone-access-denied {
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 300px;
}

.rubicone-access-denied-inner {
	text-align: center;
	padding: 40px;
	background: var(--rb-bg-alt);
	border-radius: var(--rb-radius);
	box-shadow: var(--rb-shadow-lg);
	max-width: 500px;
}

.rubicone-access-denied h2 {
	margin: 0 0 16px;
	font-size: 22px;
}

.rubicone-access-denied p {
	color: var(--rb-text-light);
	margin-bottom: 20px;
}

.rubicone-access-denied .rubicone-btn {
	background: var(--rb-primary);
	color: #fff;
}

/* Встроенная форма входа внутри блока запрета доступа */
.rubicone-access-denied {
	min-height: 90vh;
}

.rubicone-access-login-wrap .rubicone-login-form-wrapper {
	justify-content: center;
}

.rubicone-access-login-wrap .rubicone-login-form-wrapper {
	background: var(--rb-bg-alt);
	border-radius: var(--rb-radius);
	box-shadow: var(--rb-shadow-lg);
	padding: 40px;
}

/* ==========================================================================
   СТРАНИЦА КУРСА
   ========================================================================== */
.rubicone-course-header {
	display: grid;
	grid-template-columns: 400px 1fr;
	gap: 30px;
	margin-bottom: 30px;
	align-items: flex-start;
}

@media (max-width: 768px) {
	.rubicone-course-header {
		grid-template-columns: 1fr;
	}


}

.rubicone-course-thumbnail img {
	width: 100%;
	height: auto;
	border-radius: var(--rb-radius);
	box-shadow: var(--rb-shadow);
}

.rubicone-course-title {
	margin: 0 0 20px;
	font-size: 28px;
	color: var(--rb-text);
}

.rubicone-course-meta-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
	gap: 12px;
	margin-bottom: 20px;
}

.rubicone-meta-item {
	background: var(--rb-bg);
	padding: 12px 16px;
	border-radius: var(--rb-radius);
	border: 1px solid var(--rb-border);
}

.rubicone-meta-label {
	display: block;
	font-size: 12px;
	color: var(--rb-text-light);
	margin-bottom: 4px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.rubicone-meta-value {
	font-size: 15px;
	font-weight: 600;
	color: var(--rb-text);
}

/* Описание курса */
.rubicone-course-description {
	margin-bottom: 30px;
	background: var(--rb-bg-alt);
	padding: 24px;
	border-radius: var(--rb-radius);
	border: 1px solid var(--rb-border);
}

.rubicone-course-description h2 {
	margin: 0 0 16px;
	font-size: 20px;
}

.rubicone-course-text {
	line-height: 1.7;
	color: var(--rb-text);
}

/* Секция программы курса на странице курса */
.rubicone-course-curriculum-section {
	margin-bottom: 30px;
}

.rubicone-course-curriculum-section h2 {
	margin: 0 0 20px;
	font-size: 20px;
}

.rubicone-course-curriculum-section .rubicone-curriculum {
	max-width: 800px;
}

.rubicone-curriculum-preview .rubicone-item {
	opacity: 0.75;
}

.rubicone-enroll-hint {
	margin-top: 16px;
	padding: 16px;
	background: #fff7ed;
	border: 1px solid #fed7aa;
	border-radius: var(--rb-radius);
	color: var(--rb-text);
}

.rubicone-enroll-hint a {
	color: var(--rb-primary);
	font-weight: 600;
}

/* ==========================================================================
   ОШИБКА
   ========================================================================== */
.rubicone-error {
	color: var(--rb-danger);
	padding: 12px;
	background: #fef2f2;
	border: 1px solid #fecaca;
	border-radius: var(--rb-radius);
}

/* ==========================================================================
   ВСПЛЫВАЮЩИЕ УВЕДОМЛЕНИЯ
   ========================================================================== */
.rubicone-toast {
	position: fixed;
	bottom: 20px;
	right: 20px;
	z-index: 10000;
	padding: 14px 20px;
	border: 1px solid #000000;
	border-radius: var(--rb-radius);
	font-size: 14px;
	font-weight: 500;
	animation: rubicone-slide-in 0.3s ease;
	max-width: 400px;
	background: #FFFFFF;
}

.rubicone-toast a {
	text-decoration: none;
}

.rubicone-toast-success {
	box-shadow: 3px 3px 0px 0px var(--rb-success);
}

.rubicone-toast-success a {
	color: #000000;
}

.rubicone-toast-error {
	background: var(--rb-danger);
	color: #fff;
}

@keyframes rubicone-slide-in {
	from {
		opacity: 0;
		transform: translateY(-10px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* ==========================================================================
   АДАПТИВНОСТЬ
   ========================================================================== */
@media (max-width: 768px) {
	.rubicone-lesson-page,
	.rubicone-course-page {
		padding: 20px 10px 20px 10px;
	}

	.rubicone-progress-bar-wrap {
		margin-bottom: 0;
	}

	.rubicone-lesson-header {
		padding: 16px 20px;
	}

	.rubicone-lesson-body {
		padding: 20px;
	}

	.rubicone-lesson-footer {
		padding: 16px 20px;
	}

	.rubicone-lesson-title {
		font-size: 20px;
	}

	.rubicone-course-title {
		font-size: 22px;
	}

	.rubicone-course-meta-grid {
		grid-template-columns: 1fr 1fr;
	}

	.rubicone-lesson-nav {
		gap: 10px;
	}
}