/* Kelas SP2DK – DR. Mulyono */
.ksp {
	--ksp-navy: #14284b;
	--ksp-navy-deep: #0d1b33;
	--ksp-gold: #c9972f;
	--ksp-gold-soft: #f4e7c5;
	--ksp-ink: #1c2433;
	--ksp-muted: #5b6577;
	--ksp-line: #dce1e8;
	--ksp-surface: #f5f7fa;
	box-sizing: border-box;
	color: var(--ksp-ink);
	font-family: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	font-size: 16px;
	line-height: 1.55;
	text-align: left;
}
.ksp *, .ksp *::before, .ksp *::after { box-sizing: inherit; }
.ksp p { margin: 0; }
.ksp .ksp-gap { margin-top: 12px; }
.ksp h2, .ksp h3, .ksp h4 {
	margin: 0;
	padding: 0;
	font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
	font-weight: 600;
	line-height: 1.25;
	letter-spacing: 0;
	text-transform: none;
	color: var(--ksp-navy);
}
.ksp a { color: var(--ksp-navy); text-underline-offset: 3px; }
.ksp :focus-visible { outline: 3px solid var(--ksp-gold); outline-offset: 2px; }

/* Buttons */
.ksp .ksp-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	margin: 0;
	padding: 12px 20px;
	border: 1px solid transparent;
	border-radius: 8px;
	font: inherit;
	font-size: 15px;
	font-weight: 600;
	line-height: 1.2;
	text-decoration: none;
	text-transform: none;
	letter-spacing: 0;
	box-shadow: none;
	cursor: pointer;
}
.ksp .ksp-btn--primary { background: var(--ksp-navy); color: #fff; }
.ksp .ksp-btn--primary:hover { background: var(--ksp-navy-deep); color: #fff; }
.ksp .ksp-btn--gold { background: var(--ksp-gold); color: var(--ksp-navy-deep); }
.ksp .ksp-btn--gold:hover { background: #b98624; color: var(--ksp-navy-deep); }
.ksp .ksp-btn--ghost { background: #fff; color: var(--ksp-navy); border-color: #c5ccd6; }
.ksp .ksp-btn--ghost:hover { border-color: var(--ksp-navy); color: var(--ksp-navy); }
.ksp .ksp-btn--block { width: 100%; }
.ksp .ksp-btn--sm { padding: 8px 14px; font-size: 14px; }
.ksp .ksp-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* Gate: login & no access */
.ksp-gate { display: flex; justify-content: center; padding: 48px 16px; }
.ksp .ksp-gate__card {
	width: 100%;
	max-width: 440px;
	overflow: hidden;
	background: #fff;
	border: 1px solid var(--ksp-line);
	border-radius: 14px;
	box-shadow: 0 18px 40px -24px rgba(13, 27, 51, 0.45);
}
.ksp .ksp-gate__head {
	padding: 28px 28px 24px;
	background: var(--ksp-navy);
	border-bottom: 4px solid var(--ksp-gold);
}
.ksp .ksp-gate__brand { margin-bottom: 8px; color: var(--ksp-gold-soft); font-size: 14px; font-weight: 500; }
.ksp .ksp-gate__title { color: #fff; font-size: 26px; }
.ksp .ksp-gate__sub { margin-top: 10px; color: rgba(255, 255, 255, 0.82); font-size: 15px; }
.ksp .ksp-gate__body { padding: 24px 28px 28px; }
.ksp .ksp-gate__links { margin-top: 16px; font-size: 14px; }
.ksp .ksp-help { margin-top: 16px; color: var(--ksp-muted); font-size: 14px; }

.ksp .ksp-form label { display: block; margin: 16px 0 6px; font-size: 14px; font-weight: 500; }
.ksp .ksp-form label:first-of-type { margin-top: 0; }
.ksp .ksp-form input[type="text"],
.ksp .ksp-form input[type="password"] {
	display: block;
	width: 100%;
	margin: 0;
	padding: 12px 14px;
	background: #fff;
	color: var(--ksp-ink);
	border: 1px solid #c5ccd6;
	border-radius: 8px;
	font: inherit;
	box-shadow: none;
}
.ksp .ksp-form input[type="text"]:focus,
.ksp .ksp-form input[type="password"]:focus {
	border-color: var(--ksp-navy);
	outline: none;
	box-shadow: 0 0 0 3px rgba(201, 151, 47, 0.35);
}
.ksp .ksp-form .ksp-check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.ksp .ksp-form .ksp-check input { margin: 0; }
.ksp .ksp-form .ksp-btn { margin-top: 22px; }
.ksp .ksp-alert {
	margin-bottom: 18px;
	padding: 12px 14px;
	background: #fbeaea;
	color: #8a1f1f;
	border: 1px solid #f0c9c9;
	border-radius: 8px;
	font-size: 14px;
}

/* Classroom */
.ksp-room { max-width: 1200px; margin: 0 auto 40px; }
.ksp .ksp-room__bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px 24px;
	padding: 18px 24px;
	background: var(--ksp-navy);
	border-bottom: 4px solid var(--ksp-gold);
	border-radius: 14px 14px 0 0;
}
.ksp .ksp-room__title { color: #fff; font-size: 22px; }
.ksp .ksp-room__user { display: flex; align-items: center; gap: 16px; color: rgba(255, 255, 255, 0.85); font-size: 14px; }
.ksp .ksp-room__user a { color: var(--ksp-gold-soft); font-weight: 600; }
.ksp .ksp-room__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 340px;
	overflow: hidden;
	background: #fff;
	border: 1px solid var(--ksp-line);
	border-top: 0;
	border-radius: 0 0 14px 14px;
}
.ksp .ksp-room__main { padding: 24px; min-width: 0; }
.ksp .ksp-room__side { padding: 24px; background: var(--ksp-surface); border-left: 1px solid var(--ksp-line); }

/* Player */
.ksp .ksp-player__frame {
	position: relative;
	width: 100%;
	padding-top: 56.25%;
	overflow: hidden;
	background: #000;
	border-radius: 10px;
}
.ksp .ksp-player__frame iframe {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	margin: 0;
	border: 0;
}
.ksp .ksp-wm {
	position: absolute;
	top: 18%;
	left: 12%;
	z-index: 2;
	color: #fff;
	font-size: clamp(11px, 1.6vw, 16px);
	font-weight: 600;
	white-space: nowrap;
	opacity: 0.3;
	text-shadow: 0 1px 2px rgba(0, 0, 0, 0.65);
	pointer-events: none;
	user-select: none;
	-webkit-user-select: none;
	transition: top 1.2s ease, left 1.2s ease;
}
.ksp .ksp-fs-exit {
	display: none;
	position: absolute;
	top: 12px;
	right: 12px;
	z-index: 3;
	padding: 8px 12px;
	background: rgba(13, 27, 51, 0.8);
	color: #fff;
	border: 1px solid rgba(255, 255, 255, 0.35);
	border-radius: 6px;
	font: inherit;
	font-size: 13px;
	cursor: pointer;
}
.ksp .ksp-player__tools { display: flex; justify-content: flex-end; margin-top: 10px; }

.ksp .ksp-player__frame:fullscreen { padding-top: 0; width: 100%; height: 100%; border-radius: 0; }
.ksp .ksp-player__frame:-webkit-full-screen { padding-top: 0; width: 100%; height: 100%; border-radius: 0; }
.ksp .ksp-player__frame.is-pseudo-fs {
	position: fixed;
	inset: 0;
	z-index: 999999;
	width: 100vw;
	height: 100vh;
	height: 100dvh;
	padding-top: 0;
	border-radius: 0;
}
.ksp .ksp-player__frame:fullscreen .ksp-fs-exit,
.ksp .ksp-player__frame.is-pseudo-fs .ksp-fs-exit { display: block; }
.ksp .ksp-player__frame:fullscreen .ksp-wm,
.ksp .ksp-player__frame.is-pseudo-fs .ksp-wm { font-size: 20px; }
html.ksp-noscroll, html.ksp-noscroll body { overflow: hidden; }

/* Lesson info */
.ksp .ksp-lesson { margin-top: 20px; }
.ksp .ksp-lesson__meta { color: var(--ksp-muted); font-size: 14px; }
.ksp .ksp-lesson__title { margin-top: 4px; font-size: 26px; max-width: 32em; }
.ksp .ksp-lesson__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 22px; }
.ksp .ksp-lesson__actions form { margin: 0; }
.ksp .ksp-push { margin-left: auto; }

/* Sidebar */
.ksp .ksp-progress__label { color: var(--ksp-muted); font-size: 14px; }
.ksp .ksp-progress__bar { height: 6px; margin-top: 8px; overflow: hidden; background: #e1e6ee; border-radius: 99px; }
.ksp .ksp-progress__bar span { display: block; height: 100%; background: var(--ksp-gold); }
.ksp .ksp-mod { margin-top: 24px; }
.ksp .ksp-mod__title { font-size: 17px; line-height: 1.35; }
.ksp .ksp-list { margin: 12px 0 0; padding: 0; list-style: none; }
.ksp .ksp-list li { margin: 0 0 2px; padding: 0; list-style: none; }
.ksp .ksp-list li::marker { content: none; }
.ksp .ksp-list li::before { content: none; }
.ksp .ksp-list a {
	display: grid;
	grid-template-columns: 34px 1fr;
	align-items: start;
	gap: 12px;
	padding: 10px;
	color: var(--ksp-ink);
	border-radius: 8px;
	font-size: 15px;
	line-height: 1.4;
	text-decoration: none;
}
.ksp .ksp-list a:hover { background: #fff; }
.ksp .ksp-num {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	background: #fff;
	color: var(--ksp-navy);
	border: 1.5px solid var(--ksp-gold);
	border-radius: 50%;
	font-family: "Source Serif 4", Georgia, serif;
	font-size: 15px;
	font-weight: 600;
}
.ksp .ksp-list .is-done .ksp-num { background: var(--ksp-gold); color: var(--ksp-navy-deep); }
.ksp .ksp-list .is-current a { background: #fff; font-weight: 600; box-shadow: inset 3px 0 0 var(--ksp-navy); }
.ksp .ksp-status { display: block; margin-top: 2px; color: var(--ksp-muted); font-size: 13px; font-weight: 400; }
.ksp .ksp-side__help:empty { display: none; }
.ksp .ksp-side__help { margin-top: 24px; padding-top: 4px; border-top: 1px solid var(--ksp-line); }

@media (max-width: 900px) {
	.ksp .ksp-room__grid { grid-template-columns: 1fr; }
	.ksp .ksp-room__side { border-left: 0; border-top: 1px solid var(--ksp-line); }
	.ksp .ksp-room__main, .ksp .ksp-room__side { padding: 16px; }
	.ksp .ksp-room__bar { padding: 16px; border-radius: 12px 12px 0 0; }
	.ksp .ksp-room__title { font-size: 19px; }
	.ksp .ksp-lesson__title { font-size: 22px; }
}
@media (max-width: 480px) {
	.ksp .ksp-lesson__actions > .ksp-btn,
	.ksp .ksp-lesson__actions form { flex: 1 1 100%; }
	.ksp .ksp-lesson__actions form .ksp-btn { width: 100%; }
	.ksp .ksp-push { margin-left: 0; }
	.ksp .ksp-gate__head, .ksp .ksp-gate__body { padding-left: 20px; padding-right: 20px; }
}
@media (prefers-reduced-motion: reduce) {
	.ksp .ksp-wm { transition: none; }
}