/* Kalki Das Student Portal — lesson presentation
 * Calm, elegant, mobile-first. Fraunces (serif headings) + native system sans body.
 * Brand wine/gold used as restrained accents on a warm ivory ground.
 */

:root {
	--ksp-ground: #f6f1e8;
	--ksp-paper: #fffdf9;
	--ksp-ink: #241f28;
	--ksp-ink-soft: #6d6570;
	--ksp-ink-faint: #948c95;
	--ksp-wine: #9e3355;
	--ksp-wine-ink: #892a49;
	--ksp-gold: #a9823f;
	--ksp-line: rgba(36, 31, 40, 0.11);
	--ksp-line-soft: rgba(36, 31, 40, 0.07);
	--ksp-success: #3c7159;
	--ksp-shadow: 0 18px 44px rgba(60, 44, 32, 0.08);
	--ksp-shadow-soft: 0 10px 28px rgba(60, 44, 32, 0.05);
	--ksp-maxw: 640px;
	--ksp-serif: "Fraunces", Georgia, "Times New Roman", serif;
	--ksp-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
	:root {
		--ksp-ground: #191519;
		--ksp-paper: #221d24;
		--ksp-ink: #efe7dc;
		--ksp-ink-soft: #b3a9b0;
		--ksp-ink-faint: #8a8088;
		--ksp-wine: #d0798f;
		--ksp-wine-ink: #dc8a9d;
		--ksp-gold: #cca869;
		--ksp-line: rgba(239, 231, 220, 0.14);
		--ksp-line-soft: rgba(239, 231, 220, 0.08);
		--ksp-success: #78b498;
		--ksp-shadow: 0 18px 44px rgba(0, 0, 0, 0.4);
		--ksp-shadow-soft: 0 10px 28px rgba(0, 0, 0, 0.3);
	}
}

html { scroll-behavior: smooth; }

body.ksp-portal-page {
	margin: 0;
	background:
		radial-gradient(120% 60% at 88% -8%, rgba(169, 130, 63, 0.10), transparent 60%),
		radial-gradient(90% 50% at -5% 4%, rgba(158, 51, 85, 0.06), transparent 55%),
		var(--ksp-ground);
	color: var(--ksp-ink);
	font-family: var(--ksp-sans);
	font-size: 16.5px;
	line-height: 1.62;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

.ksp-portal-page * { box-sizing: border-box; }
.ksp-portal-page a { color: inherit; }

.ksp-skip-link {
	position: fixed;
	top: 10px;
	left: 10px;
	z-index: 100000;
	transform: translateY(-150%);
	padding: 10px 14px;
	border-radius: 10px;
	background: var(--ksp-ink);
	color: var(--ksp-paper) !important;
	font-weight: 700;
	text-decoration: none;
}
.ksp-skip-link:focus { transform: translateY(0); }

.ksp-portal-page a:focus-visible,
.ksp-portal-page input:focus-visible,
.ksp-portal-page button:focus-visible {
	outline: 3px solid color-mix(in srgb, var(--ksp-wine) 42%, transparent);
	outline-offset: 3px;
}

/* ---------- Header ---------- */
.ksp-site-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	max-width: var(--ksp-maxw);
	margin: 0 auto;
	padding: 20px 20px 8px;
}

.ksp-brand {
	display: inline-flex;
	align-items: center;
	gap: 11px;
	text-decoration: none;
}

.ksp-brand-mark {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background: var(--ksp-ink);
	color: var(--ksp-paper);
	font-family: var(--ksp-serif);
	font-size: 14px;
	letter-spacing: 0.06em;
	flex: none;
}

.ksp-brand strong,
.ksp-brand small { display: block; }

.ksp-brand strong {
	font-family: var(--ksp-serif);
	font-weight: 500;
	font-size: 17px;
	line-height: 1.1;
	letter-spacing: 0.01em;
}

.ksp-brand small {
	margin-top: 2px;
	color: var(--ksp-ink-soft);
	font-size: 10.5px;
	letter-spacing: 0.13em;
	text-transform: uppercase;
}

.ksp-user-menu {
	display: flex;
	align-items: center;
	gap: 14px;
	font-size: 13px;
}

.ksp-user-name { color: var(--ksp-ink-soft); }

.ksp-user-menu a {
	color: var(--ksp-ink-soft);
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
}
.ksp-user-menu a:hover { color: var(--ksp-wine); }

/* ---------- Main column ---------- */
.ksp-main {
	max-width: var(--ksp-maxw);
	margin: 0 auto;
	padding: 4px 20px 24px;
}

/* ---------- Breadcrumb ---------- */
.ksp-breadcrumb { padding: 18px 0 4px; }
.ksp-breadcrumb a {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	color: var(--ksp-ink-soft);
	font-size: 13.5px;
	font-weight: 550;
	text-decoration: none;
}
.ksp-breadcrumb a:hover { color: var(--ksp-ink); }

/* ---------- Hero ---------- */
.ksp-hero { padding: 12px 0 4px; }

.ksp-eyebrow,
.ksp-section-label {
	margin: 0 0 12px;
	color: var(--ksp-wine);
	font-size: 11.5px;
	font-weight: 700;
	letter-spacing: 0.16em;
	text-transform: uppercase;
}

.ksp-hero h1 {
	margin: 0;
	font-family: var(--ksp-serif);
	font-weight: 400;
	font-size: clamp(1.62rem, 6.6vw, 2.15rem);
	line-height: 1.16;
	letter-spacing: -0.006em;
	text-wrap: balance;
}

.ksp-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 20px;
}
.ksp-meta span {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	padding: 6px 13px;
	border: 1px solid var(--ksp-line);
	border-radius: 999px;
	background: color-mix(in srgb, var(--ksp-paper) 70%, transparent);
	color: var(--ksp-ink-soft);
	font-size: 12.5px;
	font-weight: 550;
}
.ksp-meta-icon {
	display: inline-flex;
	color: var(--ksp-gold);
}
.ksp-meta-icon svg {
	display: block;
	width: 15px;
	height: 15px;
}

.ksp-completion-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	width: 100%;
	margin-top: 22px;
	padding: 14px 20px;
	border: 1px solid var(--ksp-ink);
	border-radius: 999px !important;
	background: transparent !important;
	color: var(--ksp-ink) !important;
	font-family: var(--ksp-sans);
	font-size: 14.5px;
	font-weight: 650;
	cursor: pointer;
	transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.ksp-completion-button:hover { transform: translateY(-1px); }
.ksp-completion-button:focus-visible { outline: 3px solid color-mix(in srgb, var(--ksp-wine) 40%, transparent); outline-offset: 3px; }
.ksp-completion-button.is-complete {
	border-color: var(--ksp-success);
	background: var(--ksp-success) !important;
	color: #fff !important;
}
.ksp-completion-button.is-loading { cursor: wait; opacity: 0.68; }

.ksp-check {
	display: grid;
	place-items: center;
	width: 20px;
	height: 20px;
	border: 1.5px solid currentColor;
	border-radius: 50%;
	font-size: 11px;
}
.ksp-completion-button.is-complete .ksp-check { background: #fff; color: var(--ksp-success); border-color: #fff; }

/* ---------- Video ---------- */
.ksp-video-card {
	overflow: hidden;
	margin-top: 30px;
	padding: 8px;
	border: 1px solid var(--ksp-line);
	border-radius: 26px;
	background: var(--ksp-paper);
	box-shadow: var(--ksp-shadow);
}
.ksp-video-note {
	margin: 2px 6px 9px;
	color: var(--ksp-ink-soft);
	font-size: 12.5px;
	font-weight: 550;
	text-align: center;
}
.ksp-video-frame {
	position: relative;
	overflow: hidden;
	padding-top: 56.25%;
	border-radius: 19px;
	background: radial-gradient(90% 120% at 50% 0%, #2a2036, #0f0b15);
}
.ksp-video-frame iframe {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	border: 0;
}

/* ---------- Content ---------- */
.ksp-content-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0;
}

.ksp-card {
	border: 0;
	background: transparent;
	box-shadow: none;
}

.ksp-summary-card { margin-top: 34px; padding: 0; }
.ksp-prose { color: var(--ksp-ink); }
.ksp-prose p { margin: 0 0 1.05em; max-width: 62ch; }
.ksp-prose p:first-child { margin-top: 0; }
.ksp-prose p:last-child { margin-bottom: 0; }
.ksp-prose em { font-family: var(--ksp-serif); font-style: italic; }

/* ---------- Materials ---------- */
.ksp-materials-card {
	margin-top: 34px;
	padding: 22px 20px 24px;
	border: 1px solid var(--ksp-line);
	border-radius: 20px;
	background: color-mix(in srgb, var(--ksp-paper) 82%, transparent);
	box-shadow: var(--ksp-shadow-soft);
	color: var(--ksp-ink);
}
.ksp-materials-card .ksp-section-label { margin: 0; color: var(--ksp-wine); }
.ksp-material-heading { display: flex; align-items: center; gap: 13px; margin-bottom: 16px; }
.ksp-material-heading p { margin: 0; }
.ksp-material-heading p:last-child { margin-top: 2px; color: var(--ksp-ink-soft); font-size: 13px; }

.ksp-material-icon {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	border-radius: 12px;
	background: color-mix(in srgb, var(--ksp-gold) 16%, transparent);
	color: var(--ksp-gold);
	font-size: 20px;
	flex: none;
}

.ksp-material-list { display: grid; gap: 10px; }
.ksp-material-link {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	padding: 13px 14px;
	border: 1px solid var(--ksp-line-soft);
	border-radius: 14px;
	background: var(--ksp-paper);
	text-decoration: none;
	color: var(--ksp-ink);
	transition: border-color .18s ease, transform .18s ease;
}
.ksp-material-link:hover { border-color: var(--ksp-wine); transform: translateY(-1px); }
.ksp-material-link span { font-size: 14.5px; font-weight: 550; line-height: 1.3; }
.ksp-material-link small {
	flex: none;
	padding: 3px 8px;
	border-radius: 6px;
	background: color-mix(in srgb, var(--ksp-wine) 12%, var(--ksp-paper));
	color: var(--ksp-wine-ink);
	font-size: 10px;
	font-weight: 800;
	letter-spacing: 0.12em;
}

/* ---------- Session navigation ---------- */
.ksp-session-navigation {
	display: grid;
	grid-template-columns: 1fr;
	gap: 12px;
	margin-top: 34px;
}
.ksp-session-link {
	display: block;
	padding: 18px 20px;
	border: 1px solid var(--ksp-line);
	border-radius: 16px;
	background: color-mix(in srgb, var(--ksp-paper) 60%, transparent);
	text-decoration: none;
	transition: border-color .18s ease, background .18s ease;
}
.ksp-session-link:hover { border-color: var(--ksp-wine); background: var(--ksp-paper); }
.ksp-session-link small,
.ksp-session-link span { display: block; }
.ksp-session-link small {
	margin-bottom: 5px;
	color: var(--ksp-ink-soft);
	font-size: 10.5px;
	font-weight: 700;
	letter-spacing: 0.13em;
	text-transform: uppercase;
}
.ksp-session-link span {
	font-family: var(--ksp-serif);
	font-size: 16px;
	line-height: 1.3;
}
.ksp-session-next { text-align: right; }

/* ---------- Footer ---------- */
.ksp-footer {
	margin-top: 46px;
	padding: 26px 20px calc(26px + env(safe-area-inset-bottom, 0px));
	border-top: 1px solid var(--ksp-line);
	color: var(--ksp-ink-faint);
	text-align: center;
	font-size: 12px;
}

body.admin-bar .ksp-site-header { padding-top: 26px; }

/* ---------- Wider screens: keep the calm single reading column ---------- */
@media (min-width: 680px) {
	body.ksp-portal-page { font-size: 17px; }
	.ksp-hero h1 { font-size: 2.25rem; }
	.ksp-session-navigation { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
	.ksp-session-navigation { grid-template-columns: 1fr; }
	.ksp-session-next { text-align: left; }
	.ksp-video-card { margin-left: -4px; margin-right: -4px; }
}

@media (prefers-reduced-motion: reduce) {
	.ksp-portal-page * { transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- Friendly login ---------- */
.ksp-login-page {
	min-height: 100vh;
}
.ksp-login-main {
	display: grid;
	place-items: center;
	min-height: 100vh;
	padding: 28px 20px;
}
.ksp-login-card {
	width: min(100%, 440px);
	padding: 28px 24px 26px;
	border: 1px solid var(--ksp-line);
	border-radius: 26px;
	background: color-mix(in srgb, var(--ksp-paper) 94%, transparent);
	box-shadow: var(--ksp-shadow);
}
.ksp-login-brand {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 34px;
}
.ksp-login-brand strong,
.ksp-login-brand small { display: block; }
.ksp-login-brand strong {
	font-family: var(--ksp-serif);
	font-size: 18px;
	font-weight: 500;
	line-height: 1.1;
}
.ksp-login-brand small {
	margin-top: 3px;
	color: var(--ksp-ink-soft);
	font-size: 10.5px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}
.ksp-login-card h1 {
	margin: 0;
	font-family: var(--ksp-serif);
	font-size: clamp(1.8rem, 8vw, 2.35rem);
	font-weight: 400;
	line-height: 1.12;
}
.ksp-login-intro {
	margin: 14px 0 24px;
	color: var(--ksp-ink-soft);
	font-size: 14.5px;
}
.ksp-login-message {
	margin-bottom: 18px;
	padding: 12px 14px;
	border: 1px solid color-mix(in srgb, var(--ksp-wine) 32%, transparent);
	border-radius: 12px;
	background: color-mix(in srgb, var(--ksp-wine) 8%, var(--ksp-paper));
	color: var(--ksp-wine-ink);
	font-size: 13.5px;
}
.ksp-login-form p { margin: 0 0 16px; }
.ksp-login-form label {
	display: block;
	margin-bottom: 6px;
	color: var(--ksp-ink-soft);
	font-size: 12.5px;
	font-weight: 650;
}
.ksp-login-form .input {
	display: block;
	width: 100%;
	min-height: 48px;
	padding: 10px 13px;
	border: 1px solid var(--ksp-line);
	border-radius: 12px;
	background: var(--ksp-paper);
	color: var(--ksp-ink);
	font: inherit;
}
.ksp-login-form .login-remember label {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	font-weight: 550;
}
.ksp-login-form .login-remember input { accent-color: var(--ksp-wine); }
.ksp-login-form .button-primary {
	width: 100%;
	min-height: 48px;
	border: 1px solid var(--ksp-ink);
	border-radius: 999px;
	background: var(--ksp-ink);
	color: var(--ksp-paper);
	font: inherit;
	font-size: 14px;
	font-weight: 700;
	cursor: pointer;
}
.ksp-login-form .login-submit { margin-bottom: 14px; }
.ksp-lost-password {
	display: block;
	color: var(--ksp-ink-soft) !important;
	font-size: 13px;
	font-weight: 600;
	text-align: center;
	text-decoration: none;
}
.ksp-lost-password:hover { color: var(--ksp-wine) !important; }

/* ============================================================
 * Course index (sessions list)
 * ============================================================ */
.ksp-course-hero { padding: 16px 0 4px; }
.ksp-course-hero h1 {
	margin: 0;
	font-family: var(--ksp-serif);
	font-weight: 400;
	font-size: clamp(1.9rem, 8vw, 2.6rem);
	line-height: 1.1;
	letter-spacing: -0.012em;
	text-wrap: balance;
}
.ksp-course-intro { margin-top: 16px; color: var(--ksp-ink-soft); }
.ksp-course-intro p { margin: 0 0 0.7em; max-width: 60ch; }
.ksp-course-intro p:last-child { margin-bottom: 0; }

/* Progress */
.ksp-progress {
	margin-top: 26px;
	padding: 16px 18px;
	border: 1px solid var(--ksp-line);
	border-radius: 16px;
	background: color-mix(in srgb, var(--ksp-paper) 70%, transparent);
}
.ksp-progress-head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 10px;
}
.ksp-progress-label {
	color: var(--ksp-wine);
	font-size: 11px;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}
.ksp-progress-count { color: var(--ksp-ink-soft); font-size: 13px; font-weight: 600; }
.ksp-progress-track {
	height: 7px;
	border-radius: 999px;
	background: color-mix(in srgb, var(--ksp-ink) 10%, transparent);
	overflow: hidden;
}
.ksp-progress-fill {
	display: block;
	height: 100%;
	border-radius: 999px;
	background: linear-gradient(90deg, var(--ksp-gold), var(--ksp-wine));
	transition: width .4s ease;
}

/* Card list */
.ksp-course-list {
	list-style: none;
	margin: 22px 0 0;
	padding: 0;
	display: grid;
	gap: 12px;
	counter-reset: none;
}

.ksp-course-card {
	display: flex;
	align-items: center;
	gap: 16px;
	padding: 16px 18px;
	border: 1px solid var(--ksp-line);
	border-radius: 16px;
	background: color-mix(in srgb, var(--ksp-paper) 78%, transparent);
	text-decoration: none;
	color: var(--ksp-ink);
	transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
.ksp-course-card:hover {
	border-color: var(--ksp-wine);
	background: var(--ksp-paper);
	transform: translateY(-1px);
}

.ksp-course-card--intro {
	margin-top: 22px;
	background: color-mix(in srgb, var(--ksp-gold) 9%, var(--ksp-paper));
	border-color: color-mix(in srgb, var(--ksp-gold) 35%, var(--ksp-line));
	color: var(--ksp-ink);
}
.ksp-course-card--intro .ksp-course-num { color: var(--ksp-gold); }
.ksp-course-card--intro .ksp-course-kicker { color: var(--ksp-gold); }
.ksp-course-card--intro .ksp-course-go { color: var(--ksp-gold); }
.ksp-course-card--intro:hover { border-color: var(--ksp-gold); background: var(--ksp-paper); transform: translateY(-1px); }

.ksp-course-num {
	flex: none;
	width: 44px;
	text-align: center;
	font-family: var(--ksp-serif);
	font-size: 26px;
	font-weight: 400;
	color: var(--ksp-ink-faint);
	font-variant-numeric: tabular-nums;
}

.ksp-course-text { flex: 1; min-width: 0; }
.ksp-course-kicker {
	display: block;
	margin-bottom: 3px;
	color: var(--ksp-wine);
	font-size: 10.5px;
	font-weight: 700;
	letter-spacing: 0.13em;
	text-transform: uppercase;
}
.ksp-course-title {
	display: block;
	font-family: var(--ksp-serif);
	font-size: 17px;
	line-height: 1.28;
	color: inherit;
}

.ksp-course-go {
	flex: none;
	color: var(--ksp-ink-faint);
	font-size: 18px;
	transition: transform .18s ease;
}
.ksp-course-card:hover .ksp-course-go { transform: translateX(3px); color: var(--ksp-wine); }

.ksp-course-done {
	flex: none;
	display: grid;
	place-items: center;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: var(--ksp-success);
	color: #fff;
	font-size: 13px;
	font-weight: 700;
}
.ksp-course-card.is-done { border-color: color-mix(in srgb, var(--ksp-success) 45%, var(--ksp-line)); }

@media (min-width: 680px) {
	.ksp-course-list { grid-template-columns: 1fr 1fr; }
	.ksp-course-card--intro { grid-column: 1 / -1; }
}