/**
 * Darka LMS - front-end styles. Reads all colors from the CSS variables
 * defined per-theme in darka-dark-mode.css so the whole app reskins from
 * a single admin setting.
 */

.darka-app,
.darka-app-shell {
	font-family: var(--darka-font, 'Poppins', sans-serif);
	color: var(--darka-text);
}

.darka-app * ,
.darka-app-shell * {
	box-sizing: border-box;
}

.darka-app a { color: var(--darka-primary); text-decoration: none; }
.darka-app a:hover { text-decoration: underline; }

/* Buttons */
.darka-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 18px;
	border-radius: var(--darka-radius);
	border: 1px solid var(--darka-border);
	background: var(--darka-surface);
	color: var(--darka-text);
	cursor: pointer;
	font-size: 14px;
	font-weight: 500;
	transition: background 0.15s ease, transform 0.1s ease;
}
.darka-btn:hover { background: var(--darka-surface-hover); text-decoration: none; }
.darka-btn:active { transform: scale(0.98); }
.darka-btn--primary { background: var(--darka-primary); border-color: var(--darka-primary); color: #fff; }
.darka-btn--primary:hover { background: var(--darka-primary-hover); }
.darka-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Top bar */
.darka-topbar { padding: 10px 20px; font-size: 14px; }
.darka-topbar__inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 12px; }
.darka-topbar a { color: inherit; text-decoration: underline; }
.darka-topbar__close { margin-left: auto; background: none; border: none; color: inherit; font-size: 18px; cursor: pointer; }

/* Badges */
.darka-badge {
	display: inline-block;
	padding: 3px 10px;
	border-radius: 999px;
	font-size: 12px;
	font-weight: 600;
	background: var(--darka-surface);
	border: 1px solid var(--darka-border);
	color: var(--darka-text-muted);
}
.darka-badge--free { color: var(--darka-success); border-color: var(--darka-success); }
.darka-badge--paid { color: var(--darka-primary); border-color: var(--darka-primary); }
.darka-badge--protected { color: var(--darka-warning); border-color: var(--darka-warning); }

/* Auth */
.darka-auth { min-height: 70vh; display: flex; align-items: center; justify-content: center; background: var(--darka-bg); padding: 40px 16px; }
.darka-auth__card { width: 100%; max-width: 420px; background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); padding: 32px; box-shadow: 0 20px 60px var(--darka-shadow); }
.darka-auth__logo { max-height: 48px; margin-bottom: 20px; }
.darka-auth__tabs { display: flex; gap: 8px; margin-bottom: 20px; border-bottom: 1px solid var(--darka-border); }
.darka-auth__tab { flex: 1; background: none; border: none; color: var(--darka-text-muted); padding: 10px; cursor: pointer; border-bottom: 2px solid transparent; }
.darka-auth__tab.is-active { color: var(--darka-primary); border-color: var(--darka-primary); }
.darka-auth__panel.is-hidden { display: none; }
.darka-auth__panel form { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.darka-auth__panel label { font-size: 13px; color: var(--darka-text-muted); }
.darka-auth__panel input { padding: 10px 12px; border-radius: 8px; border: 1px solid var(--darka-border); background: var(--darka-bg-secondary); color: var(--darka-text); }
.darka-auth__error { color: var(--darka-danger); font-size: 13px; }
.darka-auth__feedback { font-size: 13px; color: var(--darka-text-muted); min-height: 18px; }
.darka-auth__invite-notice { font-size: 13px; background: var(--darka-bg-secondary); border: 1px solid var(--darka-border); border-radius: 8px; padding: 10px; }
.is-hidden { display: none !important; }

/* App shell / sidebar */
.darka-app-shell { background: var(--darka-bg); min-height: 100vh; }
.darka-shell { display: flex; min-height: 100vh; }
.darka-sidebar { width: 260px; flex-shrink: 0; background: var(--darka-surface); border-right: 1px solid var(--darka-border); display: flex; flex-direction: column; transition: width 0.2s ease; }
.darka-sidebar__brand { display: flex; align-items: center; justify-content: space-between; padding: 18px; border-bottom: 1px solid var(--darka-border); }
.darka-sidebar__brand img { max-height: 32px; }
.darka-sidebar__toggle { background: none; border: none; color: var(--darka-text); font-size: 20px; cursor: pointer; display: none; }
.darka-sidebar__nav { display: flex; flex-direction: column; padding: 12px; gap: 4px; flex: 1; }
.darka-sidebar__nav a { padding: 10px 14px; border-radius: 8px; color: var(--darka-text-muted); }
.darka-sidebar__nav a.is-active,
.darka-sidebar__nav a:hover { background: var(--darka-surface-hover); color: var(--darka-text); text-decoration: none; }
.darka-sidebar__user { display: flex; align-items: center; gap: 10px; padding: 16px; border-top: 1px solid var(--darka-border); font-size: 13px; }
.darka-avatar { width: 36px; height: 36px; border-radius: 50%; }
.darka-sidebar-right .darka-shell { flex-direction: row-reverse; }

.darka-content { flex: 1; padding: 32px; max-width: 1100px; }
.darka-panel-header { margin-bottom: 24px; }
.darka-panel-header h1 { margin: 0 0 4px; }
.darka-empty-state { text-align: center; padding: 60px 20px; background: var(--darka-surface); border-radius: var(--darka-radius); border: 1px dashed var(--darka-border); }

/* Course cards / grid */
.darka-course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.darka-course-card { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); overflow: hidden; display: flex; flex-direction: column; }
.darka-course-card__thumb { display: block; height: 150px; background-size: cover; background-position: center; background-color: var(--darka-bg-secondary); }
.darka-course-card__body { padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.darka-course-card__body h3 { margin: 0; font-size: 17px; }

.darka-progress { height: 8px; background: var(--darka-bg-secondary); border-radius: 999px; overflow: hidden; }
.darka-progress__bar { height: 100%; background: var(--darka-primary); }
.darka-progress__label { font-size: 12px; color: var(--darka-text-muted); }

/* Player */
.darka-player__video { position: relative; padding-top: 56.25%; background: #000; border-radius: var(--darka-radius); overflow: hidden; margin-bottom: 16px; }
.darka-player__video iframe,
.darka-player__video video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.darka-player__actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.darka-player__nav { display: flex; gap: 8px; }
.darka-link-muted { color: var(--darka-text-muted); font-size: 13px; }

/* Tabs */
.darka-tabs__nav { display: flex; gap: 4px; border-bottom: 1px solid var(--darka-border); margin-bottom: 20px; overflow-x: auto; }
.darka-tabs__tab { background: none; border: none; color: var(--darka-text-muted); padding: 10px 16px; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.darka-tabs__tab.is-active { color: var(--darka-primary); border-color: var(--darka-primary); }
.darka-tabs__panel { display: none; }
.darka-tabs__panel.is-active { display: block; }
.darka-materials-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.darka-materials-list li { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: 8px; padding: 10px 14px; }
.darka-loading { color: var(--darka-text-muted); font-size: 13px; }

/* Quiz */
.darka-quiz-question { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); padding: 16px; margin-bottom: 14px; }
.darka-quiz-question h4 { margin-top: 0; }
.darka-quiz-option { display: flex; align-items: center; gap: 8px; padding: 6px 0; }
.darka-quiz-result { padding: 14px; border-radius: 8px; margin-top: 16px; font-weight: 600; }
.darka-quiz-result.is-pass { background: rgba(34,197,94,0.15); color: var(--darka-success); }
.darka-quiz-result.is-fail { background: rgba(239,68,68,0.15); color: var(--darka-danger); }

/* Comments */
.darka-comment { display: flex; gap: 10px; margin-bottom: 16px; }
.darka-comment__avatar { width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0; }
.darka-comment__body { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: 10px; padding: 10px 14px; flex: 1; }
.darka-comment__author { font-weight: 600; font-size: 13px; }
.darka-comment__badge { background: var(--darka-primary); color: #fff; font-size: 10px; padding: 1px 6px; border-radius: 6px; margin-left: 6px; vertical-align: middle; }
.darka-comment__replies { margin-left: 44px; margin-top: 10px; }
#darka-comment-form textarea { width: 100%; padding: 10px; border-radius: 8px; border: 1px solid var(--darka-border); background: var(--darka-bg-secondary); color: var(--darka-text); margin-bottom: 8px; }

/* Star rating */
.darka-star-rating { display: flex; gap: 4px; font-size: 26px; }
.darka-star { background: none; border: none; cursor: pointer; color: var(--darka-border); }
.darka-star.is-filled { color: var(--darka-warning); }

/* Single course page */
.darka-course-hero { background-size: cover; background-position: center; border-radius: var(--darka-radius); overflow: hidden; margin-bottom: 32px; }
.darka-course-hero__overlay { background: linear-gradient(180deg, rgba(11,15,25,0.6), rgba(11,15,25,0.95)); padding: 60px 32px; }
.darka-course-hero__overlay h1 { margin: 10px 0; font-size: 32px; }
.darka-course-hero__meta { color: var(--darka-text-muted); }
.darka-course-single__layout { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; align-items: start; }
.darka-course-outline__module { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); padding: 16px; margin-bottom: 12px; }
.darka-course-outline__module ul { margin: 8px 0 0; padding-left: 18px; }
.darka-instructor-card { display: flex; gap: 16px; align-items: center; background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); padding: 16px; }
.darka-instructor-card img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }

.darka-checkout-card { background: var(--darka-surface); border: 1px solid var(--darka-border); border-radius: var(--darka-radius); padding: 20px; position: sticky; top: 20px; }
.darka-checkout__price { font-size: 26px; font-weight: 700; margin: 0 0 16px; }
.darka-checkout__methods { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.darka-checkout__method { flex: 1 1 auto; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--darka-border); background: var(--darka-bg-secondary); color: var(--darka-text-muted); cursor: pointer; font-size: 13px; }
.darka-checkout__method.is-active { border-color: var(--darka-primary); color: var(--darka-primary); }
.darka-checkout__panel { display: none; margin-bottom: 14px; }
.darka-checkout__panel.is-active { display: block; }
.darka-checkout__panel label { display: block; font-size: 13px; color: var(--darka-text-muted); margin-bottom: 6px; }
.darka-checkout__panel input { width: 100%; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--darka-border); background: var(--darka-bg-secondary); color: var(--darka-text); }
.darka-checkout__feedback { font-size: 13px; color: var(--darka-text-muted); margin-top: 10px; }

.darka-course-archive { max-width: 1200px; margin: 0 auto; padding: 32px 16px; }
.darka-archive-header { margin-bottom: 24px; }

/* Responsive */
@media (max-width: 900px) {
	.darka-course-single__layout { grid-template-columns: 1fr; }
	.darka-checkout-card { position: static; }
}

@media (max-width: 782px) {
	.darka-sidebar__toggle { display: block; }
	.darka-shell { position: relative; }
	.darka-sidebar { position: fixed; z-index: 100; height: 100%; left: -280px; }
	.darka-sidebar.is-open { left: 0; }
	.darka-sidebar-right .darka-sidebar { left: auto; right: -280px; }
	.darka-sidebar-right .darka-sidebar.is-open { right: 0; }
	.darka-content { padding: 20px 16px; }
}