/* ══════════════════════════════════════════════════════════════
   BSL Learn page — sdlr- prefix
   All variables fall back to theme globals where defined
   ══════════════════════════════════════════════════════════════ */

:root {
	--sdlr-purple:    #7c3aed;
	--sdlr-purple-lt: #ede9fe;
	--sdlr-green:     #16a34a;
	--sdlr-green-lt:  #dcfce7;
	--sdlr-red:       #dc2626;
	--sdlr-red-lt:    #fee2e2;
	--sdlr-amber:     #d97706;
	--sdlr-amber-lt:  #fef3c7;
	--sdlr-blue:      #2563eb;
	--sdlr-blue-lt:   #dbeafe;
	--sdlr-ink:       #111827;
	--sdlr-ink-2:     #374151;
	--sdlr-muted:     #6b7280;
	--sdlr-border:    #e5e7eb;
	--sdlr-surface:   #f9fafb;
	--sdlr-white:     #ffffff;
	--sdlr-radius:    14px;
	--sdlr-shadow:    0 4px 20px rgba(0,0,0,.10);
	--sdlr-shadow-lg: 0 8px 40px rgba(0,0,0,.15);
}

/* ── Layout ─────────────────────────────────────────────────── */
.sdlr-main {
	min-height: 80vh;
	background: var(--sdlr-surface);
}

/* ══════════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════════ */
.sdlr-hero {
	background: linear-gradient(135deg, #4f1d96 0%, #7c3aed 55%, #a855f7 100%);
	color: #fff;
	padding: 48px 20px 0;
}

.sdlr-hero-inner {
	max-width: 900px;
	margin: 0 auto;
	display: flex;
	align-items: flex-start;
	gap: 32px;
}

.sdlr-hero-left { flex: 1; }

.sdlr-hero-title {
	font-size: clamp(24px, 5vw, 40px);
	font-weight: 900;
	line-height: 1.1;
	margin: 0 0 8px;
	letter-spacing: -.5px;
}

/* ── Language tab bar ────────────────────────────────────────── */
.sdlr-lang-bar {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
	max-width: 900px;
	margin: 0 auto 20px;
	padding: 0 4px;
}

.sdlr-lang-tab {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	background: rgba(255,255,255,.12);
	border: 1.5px solid rgba(255,255,255,.22);
	border-radius: 12px;
	padding: 8px 16px;
	color: #fff;
	font-size: 14px;
	font-weight: 700;
	cursor: pointer;
	transition: background .15s, border-color .15s, transform .1s;
}
.sdlr-lang-tab:hover:not(:disabled) {
	background: rgba(255,255,255,.22);
	border-color: rgba(255,255,255,.45);
	transform: translateY(-1px);
}
.sdlr-lang-tab.is-active {
	background: rgba(255,255,255,.25);
	border-color: rgba(255,255,255,.6);
	box-shadow: 0 0 0 2px rgba(255,255,255,.25);
}
.sdlr-lang-tab:disabled {
	opacity: .5;
	cursor: not-allowed;
}
.sdlr-lang-flag { font-size: 18px; }
.sdlr-lang-count {
	font-size: 11px;
	font-weight: 600;
	opacity: .7;
}
.sdlr-lang-soon {
	font-size: 10px;
	font-weight: 700;
	background: rgba(255,255,255,.2);
	border-radius: 6px;
	padding: 1px 6px;
	letter-spacing: .04em;
	text-transform: uppercase;
}

/* ── Hero kicker + stats row ─────────────────────────────────── */
.sdlr-hero-kicker {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: rgba(255,255,255,.16);
	border: 1px solid rgba(255,255,255,.28);
	border-radius: 20px;
	padding: 4px 14px;
	font-size: 12px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: .07em;
	margin-bottom: 12px;
}

.sdlr-hero-stats-row {
	display: flex;
	align-items: center;
	gap: 16px;
	margin-bottom: 18px;
}

.sdlr-hero-stat {
	display: flex;
	flex-direction: column;
	gap: 1px;
}
.sdlr-hero-stat strong {
	font-size: 22px;
	font-weight: 900;
	line-height: 1;
}
.sdlr-hero-stat span {
	font-size: 11px;
	opacity: .65;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: .06em;
}
.sdlr-hero-stat-sep {
	width: 1px;
	height: 28px;
	background: rgba(255,255,255,.25);
	flex-shrink: 0;
}

/* ── Resume last session button ──────────────────────────────── */
.sdlr-resume-btn {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	background: rgba(255,255,255,.2);
	border: 1.5px solid rgba(255,255,255,.4);
	border-radius: 10px;
	padding: 9px 16px;
	color: #fff;
	font-size: 13px;
	font-weight: 800;
	cursor: pointer;
	transition: background .15s, transform .1s;
	margin-bottom: 16px;
}
.sdlr-resume-btn::before { content: '▶'; font-size: 11px; }
.sdlr-resume-btn:hover {
	background: rgba(255,255,255,.3);
	transform: translateY(-1px);
}

/* ── 7-day streak dots ───────────────────────────────────────── */
.sdlr-week-dots {
	display: flex;
	gap: 8px;
}
.sdlr-week-dot {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 3px;
}
.sdlr-week-dot-circle {
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: rgba(255,255,255,.12);
	border: 2px solid rgba(255,255,255,.25);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 11px;
	transition: background .2s, border-color .2s;
}
.sdlr-week-dot.is-done .sdlr-week-dot-circle {
	background: #10b981;
	border-color: #10b981;
	color: #fff;
}
.sdlr-week-dot.is-today .sdlr-week-dot-circle {
	border-color: rgba(255,255,255,.7);
}
.sdlr-week-dot-lbl {
	font-size: 9px;
	font-weight: 700;
	color: rgba(255,255,255,.5);
	text-transform: uppercase;
}
.sdlr-week-dot.is-today .sdlr-week-dot-lbl { color: rgba(255,255,255,.9); }

.sdlr-hint-key {
	display: inline-block;
	background: rgba(255,255,255,.2);
	border: 1px solid rgba(255,255,255,.35);
	border-radius: 4px;
	padding: 1px 5px;
	font-family: monospace;
	font-size: 11px;
}

/* ── Daily goal ring ─────────────────────────────────────────── */
.sdlr-hero-right {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 6px;
	flex-shrink: 0;
}

.sdlr-goal-wrap {
	position: relative;
	width: 90px;
	height: 90px;
}

.sdlr-goal-ring {
	width: 90px;
	height: 90px;
}

.sdlr-ring-bg {
	fill: none;
	stroke: rgba(255,255,255,.2);
	stroke-width: 7;
}

.sdlr-ring-fill {
	fill: none;
	stroke: #fbbf24;
	stroke-width: 7;
	stroke-linecap: round;
	stroke-dasharray: 213.6;
	stroke-dashoffset: 213.6;
	transform: rotate(-90deg);
	transform-origin: 40px 40px;
	transition: stroke-dashoffset .6s cubic-bezier(.4,0,.2,1);
}

.sdlr-goal-wrap.is-done .sdlr-ring-fill { stroke: #4ade80; }

.sdlr-goal-text {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	pointer-events: none;
}

.sdlr-goal-num {
	font-size: 22px;
	font-weight: 900;
	line-height: 1;
	color: #fff;
}

.sdlr-goal-sub {
	font-size: 10px;
	color: rgba(255,255,255,.75);
	margin-top: 1px;
}

.sdlr-goal-label {
	font-size: 11px;
	font-weight: 700;
	color: rgba(255,255,255,.75);
	text-transform: uppercase;
	letter-spacing: .08em;
}

/* ── Mode grid ───────────────────────────────────────────────── */
.sdlr-modes {
	max-width: 900px;
	margin: 32px auto 0;
	padding: 0 0 4px;
}

.sdlr-modes-heading {
	font-size: 13px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: .1em;
	color: rgba(255,255,255,.7);
	margin: 0 0 12px;
}

.sdlr-modes-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 10px;
	padding-bottom: 32px;
}

.sdlr-mode-card {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 4px;
	background: rgba(255,255,255,.12);
	border: 1.5px solid rgba(255,255,255,.2);
	border-radius: 12px;
	padding: 16px 14px;
	cursor: pointer;
	transition: background .18s, border-color .18s, transform .12s;
	text-align: left;
	color: #fff;
}

.sdlr-mode-card:hover,
.sdlr-mode-card:focus-visible {
	background: rgba(255,255,255,.22);
	border-color: rgba(255,255,255,.45);
	transform: translateY(-2px);
}

.sdlr-mode-card:focus-visible { outline: 2px solid #fbbf24; outline-offset: 2px; }

/* Per-mode color accents — top bar + border tint */
.sdlr-mode-card::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0;
	height: 3px;
	border-radius: 10px 10px 0 0;
	background: rgba(255,255,255,.3);
	transition: background .15s;
}
.sdlr-mode-card--quick::before   { background: #fbbf24; }
.sdlr-mode-card--begin::before   { background: #34d399; }
.sdlr-mode-card--inter::before   { background: #60a5fa; }
.sdlr-mode-card--adv::before     { background: #f87171; }
.sdlr-mode-card--culture::before { background: #a78bfa; }
.sdlr-mode-card--grammar::before { background: #2dd4bf; }
.sdlr-mode-card--hand::before    { background: #818cf8; }
.sdlr-mode-card--review::before  { background: #f472b6; }

.sdlr-mode-card--quick:hover   { background: rgba(251,191,36,.18);  border-color: rgba(251,191,36,.5); }
.sdlr-mode-card--begin:hover   { background: rgba(52,211,153,.15);  border-color: rgba(52,211,153,.5); }
.sdlr-mode-card--inter:hover   { background: rgba(96,165,250,.15);  border-color: rgba(96,165,250,.5); }
.sdlr-mode-card--adv:hover     { background: rgba(248,113,113,.15); border-color: rgba(248,113,113,.5); }
.sdlr-mode-card--culture:hover { background: rgba(167,139,250,.15); border-color: rgba(167,139,250,.5); }
.sdlr-mode-card--grammar:hover { background: rgba(45,212,191,.15);  border-color: rgba(45,212,191,.5); }
.sdlr-mode-card--hand:hover    { background: rgba(129,140,248,.15); border-color: rgba(129,140,248,.5); }
.sdlr-mode-card--review:hover  { background: rgba(244,114,182,.15); border-color: rgba(244,114,182,.5); }

.sdlr-mode-icon {
	font-size: 22px;
	line-height: 1;
}

.sdlr-mode-name {
	font-size: 14px;
	font-weight: 800;
	line-height: 1.2;
}

.sdlr-mode-desc {
	font-size: 11px;
	opacity: .75;
	line-height: 1.3;
}

.sdlr-mode-badge {
	position: absolute;
	top: 10px;
	right: 10px;
	background: rgba(255,255,255,.2);
	border-radius: 8px;
	padding: 2px 7px;
	font-size: 10px;
	font-weight: 800;
	letter-spacing: .04em;
}

.sdlr-mode-badge--hard  { background: rgba(239,68,68,.35); }
.sdlr-mode-badge--lock  { background: rgba(0,0,0,.25); }

.sdlr-mode-time {
	margin-top: auto;
	padding-top: 8px;
	font-size: 10px;
	font-weight: 700;
	color: rgba(255,255,255,.45);
	letter-spacing: .04em;
	text-transform: uppercase;
}

/* ══════════════════════════════════════════════════════════════
   SESSION
   ══════════════════════════════════════════════════════════════ */
.sdlr-session {
	padding: 20px 16px 32px;
	background: var(--sdlr-surface);
	min-height: 80vh;
}

.sdlr-session-inner {
	max-width: 500px;
	margin: 0 auto;
}

/* ── Header bar ──────────────────────────────────────────────── */
.sdlr-session-header {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 20px;
}

.sdlr-back-btn {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	background: none;
	border: 1.5px solid var(--sdlr-border);
	border-radius: 8px;
	padding: 6px 12px;
	font-size: 13px;
	font-weight: 700;
	color: var(--sdlr-ink-2);
	cursor: pointer;
	flex-shrink: 0;
	transition: border-color .15s, background .15s;
}

.sdlr-back-btn:hover { background: var(--sdlr-border); }

.sdlr-session-mid {
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 5px;
	min-width: 0;
}

.sdlr-session-mode-label {
	font-size: 11px;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: .08em;
	color: var(--sdlr-muted);
}

/* ── In-session streak counter ───────────────────────────────── */
.sdlr-session-streak {
	text-align: center;
	font-size: 14px;
	font-weight: 800;
	color: #f59e0b;
	padding: 6px 0 10px;
	animation: sdlrStreakPop .4s cubic-bezier(.34,1.56,.64,1);
}
.sdlr-session-streak.is-pop {
	animation: none;
}
@keyframes sdlrStreakPop {
	0%   { transform: scale(.7); opacity: 0; }
	100% { transform: scale(1);  opacity: 1; }
}

/* ── Confetti ─────────────────────────────────────────────────── */
.sdlr-confetti-wrap {
	position: absolute;
	top: 0; left: 0; right: 0;
	height: 100%;
	pointer-events: none;
	overflow: hidden;
	z-index: 0;
}
.sdlr-confetti-piece {
	position: absolute;
	width: 9px;
	height: 9px;
	border-radius: 2px;
	top: 0;
	animation: sdlrConfettiFall 1.8s ease-in forwards;
	pointer-events: none;
}
@keyframes sdlrConfettiFall {
	0%   { transform: translateY(-10px) rotate(0deg)   scale(1);   opacity: 1; }
	80%  { opacity: 1; }
	100% { transform: translateY(320px) rotate(540deg) scale(0.4); opacity: 0; }
}

.sdlr-progress {
	flex: 1;
	height: 8px;
	background: var(--sdlr-border);
	border-radius: 100px;
	overflow: hidden;
}

.sdlr-progress-fill {
	height: 100%;
	width: 0;
	background: linear-gradient(90deg, #7c3aed, #a855f7);
	border-radius: 100px;
	transition: width .3s ease;
}

.sdlr-progress-label {
	font-size: 12px;
	font-weight: 700;
	color: var(--sdlr-muted);
	flex-shrink: 0;
	min-width: 36px;
	text-align: right;
}

/* ── Card wrap + stack effect ────────────────────────────────── */
.sdlr-card-wrap {
	position: relative;
	min-height: 520px;
}

/* Peek cards — CSS pseudo-elements give a deck-of-cards depth */
.sdlr-card-peek {
	position: absolute;
	bottom: -6px;
	left: 8px;
	right: 8px;
	height: 24px;
	background: #ddd6fe;
	border-radius: 0 0 var(--sdlr-radius) var(--sdlr-radius);
	z-index: 0;
}

.sdlr-card-peek::before {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 10px;
	right: 10px;
	height: 20px;
	background: #c4b5fd;
	border-radius: 0 0 var(--sdlr-radius) var(--sdlr-radius);
}

/* ── Sign card ───────────────────────────────────────────────── */
.sdlr-card {
	position: relative;
	z-index: 1;
	display: flex;
	flex-direction: column;
	background: var(--sdlr-white);
	border-radius: var(--sdlr-radius);
	box-shadow: var(--sdlr-shadow-lg);
	overflow: hidden;
	transition: transform .32s cubic-bezier(.4,0,.2,1), opacity .32s ease;
	will-change: transform, opacity;
	user-select: none;
}

.sdlr-card.is-leaving--know  { transform: translateX(115%) rotate(12deg);  opacity: 0; }
.sdlr-card.is-leaving--again { transform: translateX(-115%) rotate(-12deg); opacity: 0; }
.sdlr-card.is-leaving--save  { transform: translateY(-70%) scale(.92);      opacity: 0; }

/* ── Card visual (image area) ────────────────────────────────── */
.sdlr-card-visual {
	position: relative;
	background: #f3f4f6;
	overflow: hidden;
}

.sdlr-card-img {
	width: 100%;
	max-height: 220px;
	object-fit: cover;
	display: block;
}

.sdlr-card-img-placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 140px;
	background: linear-gradient(135deg, #ede9fe, #ddd6fe);
	font-size: 56px;
	font-weight: 900;
	color: #7c3aed;
}

.sdlr-card-badges {
	position: absolute;
	bottom: 8px;
	left: 8px;
	display: flex;
	gap: 5px;
	flex-wrap: wrap;
}

.sdlr-badge {
	display: inline-block;
	border-radius: 20px;
	padding: 2px 8px;
	font-size: 10px;
	font-weight: 800;
	letter-spacing: .04em;
	text-transform: uppercase;
	backdrop-filter: blur(6px);
}

.sdlr-badge--cefr     { background: rgba(0,0,0,.55); color: #fff; }
.sdlr-badge--cefr.sdlr-badge--a1,
.sdlr-badge--cefr.sdlr-badge--a2 { background: rgba(22,163,74,.85); }
.sdlr-badge--cefr.sdlr-badge--b1,
.sdlr-badge--cefr.sdlr-badge--b2 { background: rgba(37,99,235,.85); }
.sdlr-badge--cefr.sdlr-badge--c1,
.sdlr-badge--cefr.sdlr-badge--c2 { background: rgba(124,58,237,.85); }
.sdlr-badge--wc    { background: rgba(255,255,255,.82); color: #374151; }
.sdlr-badge--cat   { background: rgba(255,255,255,.75); color: #374151; }
.sdlr-badge--known { background: rgba(22,163,74,.85);   color: #fff; }

.sdlr-card-fullpage {
	position: absolute;
	top: 8px;
	right: 8px;
	background: rgba(0,0,0,.48);
	color: #fff;
	border-radius: 8px;
	padding: 3px 8px;
	font-size: 11px;
	font-weight: 700;
	text-decoration: none;
	backdrop-filter: blur(4px);
	transition: background .15s;
}

.sdlr-card-fullpage:hover { background: rgba(0,0,0,.7); }

/* ── Card scrollable body ────────────────────────────────────── */
.sdlr-card-scroll {
	flex: 1;
	overflow-y: auto;
	padding: 16px 16px 8px;
	-webkit-overflow-scrolling: touch;
}

.sdlr-card-word {
	font-size: 26px;
	font-weight: 900;
	letter-spacing: -.3px;
	color: var(--sdlr-ink);
	margin: 0 0 8px;
	line-height: 1.1;
}

.sdlr-card-def {
	font-size: 15px;
	color: var(--sdlr-ink-2);
	line-height: 1.55;
	margin: 0 0 12px;
}

.sdlr-card-example {
	display: flex;
	align-items: flex-start;
	gap: 7px;
	background: #f0fdf4;
	border-left: 3px solid #86efac;
	border-radius: 0 8px 8px 0;
	padding: 8px 10px;
	margin-bottom: 10px;
	font-size: 13px;
	color: #166534;
	font-style: italic;
}

.sdlr-card-example-icon { font-style: normal; font-size: 14px; flex-shrink: 0; }

.sdlr-card-examples {
	margin: 0 0 10px;
	padding-left: 18px;
	font-size: 13px;
	color: var(--sdlr-muted);
	line-height: 1.5;
}

.sdlr-card-examples li { margin-bottom: 3px; }

/* ── Expandable sections ─────────────────────────────────────── */
.sdlr-section {
	border: 1px solid var(--sdlr-border);
	border-radius: 10px;
	margin-bottom: 8px;
	overflow: hidden;
}

.sdlr-section[open] { background: #fff; }

.sdlr-section-hd {
	display: flex;
	align-items: center;
	gap: 7px;
	padding: 10px 12px;
	cursor: pointer;
	font-size: 13px;
	font-weight: 700;
	color: var(--sdlr-ink-2);
	list-style: none;
	user-select: none;
	background: var(--sdlr-surface);
	transition: background .15s;
}

.sdlr-section-hd::-webkit-details-marker { display: none; }
.sdlr-section[open] .sdlr-section-hd { background: #fff; }
.sdlr-section-hd:hover { background: #f3f4f6; }

.sdlr-section-icon { font-size: 14px; flex-shrink: 0; }

.sdlr-section-count {
	margin-left: auto;
	font-size: 10px;
	font-weight: 600;
	color: var(--sdlr-muted);
	background: var(--sdlr-border);
	border-radius: 10px;
	padding: 1px 7px;
}

.sdlr-section-chevron {
	font-size: 14px;
	color: var(--sdlr-muted);
	margin-left: 4px;
	transition: transform .2s;
}

.sdlr-section[open] .sdlr-section-chevron { transform: rotate(90deg); }

.sdlr-section-body {
	padding: 12px;
	border-top: 1px solid var(--sdlr-border);
}

/* ── Linguistic feature grid ─────────────────────────────────── */
.sdlr-ling-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 6px;
}

.sdlr-ling-row {
	display: flex;
	flex-direction: column;
	background: var(--sdlr-surface);
	border-radius: 8px;
	padding: 6px 9px;
}

.sdlr-ling-label {
	font-size: 9px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: .07em;
	color: var(--sdlr-muted);
}

.sdlr-ling-val {
	font-size: 13px;
	font-weight: 600;
	color: var(--sdlr-ink-2);
	margin-top: 1px;
}

.sdlr-nmm-block {
	margin-top: 10px;
	background: #f0f9ff;
	border-radius: 8px;
	padding: 8px 10px;
}

.sdlr-nmm-title {
	font-size: 10px;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: .07em;
	color: #0369a1;
	margin-bottom: 6px;
}

.sdlr-nmm-block .sdlr-ling-row { background: rgba(255,255,255,.7); }

/* ── Culture section ─────────────────────────────────────────── */
.sdlr-culture-note {
	font-size: 13px;
	line-height: 1.55;
	color: var(--sdlr-ink-2);
	margin: 0 0 8px;
}

.sdlr-culture-row {
	font-size: 12px;
	color: var(--sdlr-muted);
	margin-bottom: 5px;
	line-height: 1.45;
}

.sdlr-culture-caution {
	background: #fff7ed;
	border-left: 3px solid #fb923c;
	border-radius: 0 6px 6px 0;
	padding: 6px 8px;
	color: #92400e;
}

/* ── How to sign section ─────────────────────────────────────── */
.sdlr-howto-list {
	margin: 0 0 10px;
	padding-left: 20px;
	font-size: 13px;
	color: var(--sdlr-ink-2);
	line-height: 1.55;
}

.sdlr-howto-list li { margin-bottom: 5px; }

.sdlr-ai-practice {
	font-size: 13px;
	color: var(--sdlr-ink-2);
	line-height: 1.55;
	margin: 0 0 8px;
}

.sdlr-ai-correction {
	display: flex;
	align-items: flex-start;
	gap: 6px;
	background: #fff7ed;
	border: 1px solid #fed7aa;
	border-radius: 8px;
	padding: 8px 10px;
	font-size: 12px;
	color: #92400e;
	line-height: 1.45;
}

.sdlr-ai-correction-icon { flex-shrink: 0; }

/* ── Related signs ───────────────────────────────────────────── */
.sdlr-related-list {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.sdlr-related-chip {
	display: inline-block;
	background: var(--sdlr-purple-lt);
	color: var(--sdlr-purple);
	border-radius: 20px;
	padding: 4px 12px;
	font-size: 12px;
	font-weight: 700;
	text-decoration: none;
	transition: background .15s;
}

.sdlr-related-chip:hover { background: #ddd6fe; }

/* ── Card action buttons ─────────────────────────────────────── */
.sdlr-card-actions {
	display: flex;
	gap: 8px;
	padding: 12px 16px 16px;
	background: var(--sdlr-white);
	border-top: 1px solid var(--sdlr-border);
}

.sdlr-btn {
	flex: 1;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 5px;
	border: none;
	border-radius: 10px;
	padding: 10px 8px;
	font-size: 13px;
	font-weight: 800;
	cursor: pointer;
	transition: opacity .15s, transform .1s;
	text-decoration: none;
	text-align: center;
}

.sdlr-btn:disabled { opacity: .45; cursor: not-allowed; }
.sdlr-btn:active:not(:disabled) { transform: scale(.96); }

.sdlr-btn--again {
	background: var(--sdlr-red-lt);
	color: var(--sdlr-red);
}
.sdlr-btn--again:hover:not(:disabled) { background: #fecaca; }

.sdlr-btn--know {
	background: var(--sdlr-green);
	color: #fff;
}
.sdlr-btn--know:hover:not(:disabled) { background: #15803d; }

.sdlr-btn--save {
	background: var(--sdlr-purple-lt);
	color: var(--sdlr-purple);
}
.sdlr-btn--save:hover:not(:disabled) { background: #ddd6fe; }

.sdlr-btn--primary {
	background: var(--sdlr-purple);
	color: #fff;
}
.sdlr-btn--primary:hover { background: #6d28d9; }

.sdlr-btn--share {
	background: #fff;
	color: var(--sdlr-ink-2);
	border: 1.5px solid var(--sdlr-border);
}
.sdlr-btn--share:hover { background: var(--sdlr-surface); }

.sdlr-btn--upgrade {
	background: #d97706;
	color: #fff;
}
.sdlr-btn--upgrade:hover { background: #b45309; }

/* ── Loading / error states ──────────────────────────────────── */
.sdlr-loading,
.sdlr-error {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	min-height: 300px;
	gap: 16px;
	color: var(--sdlr-muted);
	font-size: 15px;
}

.sdlr-loading-spinner {
	width: 36px;
	height: 36px;
	border: 4px solid var(--sdlr-border);
	border-top-color: var(--sdlr-purple);
	border-radius: 50%;
	animation: sdlrSpin .7s linear infinite;
}

@keyframes sdlrSpin { to { transform: rotate(360deg); } }

/* ══════════════════════════════════════════════════════════════
   SUMMARY
   ══════════════════════════════════════════════════════════════ */
.sdlr-summary {
	position: relative;
	padding: 48px 20px 64px;
	background: var(--sdlr-surface);
	min-height: 80vh;
	overflow: hidden;
}

.sdlr-summary-inner {
	max-width: 480px;
	margin: 0 auto;
	text-align: center;
}

.sdlr-sum-icon {
	font-size: 52px;
	line-height: 1;
	margin-bottom: 12px;
}

.sdlr-sum-heading {
	font-size: 28px;
	font-weight: 900;
	color: var(--sdlr-ink);
	margin: 0 0 20px;
}

.sdlr-sum-pb {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: #fef3c7;
	border: 1px solid #fcd34d;
	border-radius: 20px;
	padding: 6px 16px;
	font-size: 13px;
	font-weight: 800;
	color: #92400e;
	margin-bottom: 20px;
}

.sdlr-sum-stats {
	display: flex;
	justify-content: center;
	gap: 24px;
	margin-bottom: 24px;
}

.sdlr-sum-stat {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 3px;
}

.sdlr-sum-stat-num {
	font-size: 36px;
	font-weight: 900;
	color: var(--sdlr-ink);
	line-height: 1;
}

.sdlr-sum-stat--xp .sdlr-sum-stat-num {
	font-size: 24px;
	color: var(--sdlr-purple);
}

.sdlr-sum-stat-label {
	font-size: 12px;
	color: var(--sdlr-muted);
	font-weight: 600;
}

.sdlr-sum-streak {
	font-size: 18px;
	font-weight: 800;
	color: var(--sdlr-amber);
	margin-bottom: 20px;
}

.sdlr-sum-actions {
	display: flex;
	gap: 10px;
	justify-content: center;
	flex-wrap: wrap;
	margin-bottom: 24px;
}

.sdlr-sum-actions .sdlr-btn { flex: 0 1 180px; }

.sdlr-sum-cta {
	background: var(--sdlr-white);
	border: 1.5px solid var(--sdlr-border);
	border-radius: var(--sdlr-radius);
	padding: 20px;
	margin-bottom: 16px;
}

.sdlr-sum-cta p { font-size: 14px; color: var(--sdlr-muted); margin: 0 0 12px; }

.sdlr-sum-cta--upgrade { border-color: #fcd34d; background: #fffbeb; }

.sdlr-sum-links {
	display: flex;
	gap: 10px;
	justify-content: center;
	font-size: 13px;
	color: var(--sdlr-muted);
	flex-wrap: wrap;
}

.sdlr-sum-links a {
	color: var(--sdlr-purple);
	text-decoration: none;
	font-weight: 600;
}

.sdlr-sum-links a:hover { text-decoration: underline; }

/* ── Summary page links (Known Signs / Saved Signs) ─────────── */
.sdlr-sum-page-links {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-top: 20px;
}

.sdlr-sum-page-link {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	border-radius: 12px;
	padding: 13px 20px;
	font-size: 15px;
	font-weight: 800;
	text-decoration: none;
	transition: opacity .15s, transform .1s;
	letter-spacing: -.01em;
}

.sdlr-sum-page-link:active { transform: scale(.97); }

.sdlr-sum-page-link--known {
	background: linear-gradient(135deg, #065f46 0%, #047857 100%);
	color: #fff;
	box-shadow: 0 3px 12px rgba(6,95,70,.25);
}

.sdlr-sum-page-link--known:hover { opacity: .9; }

.sdlr-sum-page-link--saved {
	background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
	color: #fff;
	box-shadow: 0 3px 12px rgba(37,99,235,.25);
}

.sdlr-sum-page-link--saved:hover { opacity: .9; }

/* ══════════════════════════════════════════════════════════════
   FLOATING ANIMATIONS
   ══════════════════════════════════════════════════════════════ */

/* XP float label */
.sdlr-xp-float {
	position: fixed;
	z-index: 9999;
	pointer-events: none;
	background: var(--sdlr-purple);
	color: #fff;
	border-radius: 20px;
	padding: 5px 14px;
	font-size: 15px;
	font-weight: 900;
	transform: translateX(-50%);
	animation: sdlrXpFloat 1.5s ease forwards;
}

@keyframes sdlrXpFloat {
	0%   { opacity: 0; transform: translateX(-50%) translateY(0); }
	15%  { opacity: 1; }
	85%  { opacity: 1; }
	100% { opacity: 0; transform: translateX(-50%) translateY(-60px); }
}

/* Combo flash */
.sdlr-combo-flash {
	position: fixed;
	top: 50%;
	left: 50%;
	z-index: 9998;
	transform: translate(-50%, -50%) scale(.8);
	background: linear-gradient(135deg, #7c3aed, #a855f7);
	color: #fff;
	border-radius: 16px;
	padding: 14px 28px;
	font-size: 20px;
	font-weight: 900;
	letter-spacing: -.2px;
	box-shadow: 0 8px 32px rgba(124,58,237,.4);
	pointer-events: none;
	opacity: 0;
	transition: opacity .15s, transform .15s;
}

.sdlr-combo-flash.is-active {
	opacity: 1;
	transform: translate(-50%, -50%) scale(1);
	animation: sdlrComboOut 1.8s ease 1s forwards;
}

@keyframes sdlrComboOut { to { opacity: 0; transform: translate(-50%, -70%) scale(.9); } }

/* Daily goal toast */
.sdlr-goal-toast {
	position: fixed;
	bottom: 24px;
	left: 50%;
	z-index: 9999;
	transform: translateX(-50%);
	display: flex;
	align-items: center;
	gap: 12px;
	background: #fff;
	border: 1.5px solid #bbf7d0;
	border-radius: 14px;
	padding: 14px 18px;
	box-shadow: var(--sdlr-shadow-lg);
	min-width: 280px;
	max-width: 360px;
	animation: sdlrSlideUp .3s ease;
}

.sdlr-goal-toast.is-leaving { animation: sdlrSlideDown .3s ease forwards; }

.sdlr-goal-toast-icon { font-size: 24px; flex-shrink: 0; }

.sdlr-goal-toast strong { font-size: 14px; color: var(--sdlr-ink); display: block; margin-bottom: 2px; }
.sdlr-goal-toast p { font-size: 12px; color: var(--sdlr-muted); margin: 0; }

@keyframes sdlrSlideUp   { from { transform: translateX(-50%) translateY(24px); opacity: 0; } to { transform: translateX(-50%) translateY(0); opacity: 1; } }
@keyframes sdlrSlideDown { to   { transform: translateX(-50%) translateY(24px); opacity: 0; } }

/* ══════════════════════════════════════════════════════════════
   SEO CONTENT SECTIONS
   ══════════════════════════════════════════════════════════════ */
.sdlr-seo-wrap {
	background: var(--sdlr-white);
	border-top: 1px solid var(--sdlr-border);
}

.sdlr-seo-inner {
	max-width: 900px;
	margin: 0 auto;
	padding: 48px 20px;
}

.sdlr-seo-intro h2,
.sdlr-seo-modes h2,
.sdlr-seo-faq h2 {
	font-size: 22px;
	font-weight: 900;
	color: var(--sdlr-ink);
	margin: 0 0 20px;
}

.sdlr-seo-cols {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 24px;
}

.sdlr-seo-cols p {
	font-size: 14px;
	color: var(--sdlr-ink-2);
	line-height: 1.65;
	margin: 0 0 12px;
}

.sdlr-seo-modes {
	background: var(--sdlr-surface);
	border-top: 1px solid var(--sdlr-border);
}

.sdlr-seo-mode-list {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 16px;
}

.sdlr-seo-mode-item {
	background: var(--sdlr-white);
	border: 1px solid var(--sdlr-border);
	border-radius: 10px;
	padding: 16px;
}

.sdlr-seo-mode-item strong {
	display: block;
	font-size: 14px;
	color: var(--sdlr-ink);
	margin-bottom: 6px;
}

.sdlr-seo-mode-item p {
	font-size: 13px;
	color: var(--sdlr-muted);
	line-height: 1.55;
	margin: 0;
}

/* FAQ items */
.sdlr-faq-item {
	border: 1px solid var(--sdlr-border);
	border-radius: 10px;
	margin-bottom: 10px;
	overflow: hidden;
}

.sdlr-faq-q {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 16px;
	font-size: 14px;
	font-weight: 700;
	color: var(--sdlr-ink);
	cursor: pointer;
	list-style: none;
	background: var(--sdlr-surface);
	transition: background .15s;
}

.sdlr-faq-q::-webkit-details-marker { display: none; }
.sdlr-faq-q:hover { background: #f3f4f6; }
.sdlr-faq-item[open] .sdlr-faq-q { background: #fff; }

.sdlr-faq-a {
	padding: 12px 16px 14px;
	border-top: 1px solid var(--sdlr-border);
}

.sdlr-faq-a p {
	font-size: 14px;
	color: var(--sdlr-ink-2);
	line-height: 1.6;
	margin: 0;
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 760px) {
	.sdlr-modes-grid { grid-template-columns: repeat(2, 1fr); }
	.sdlr-hero-inner { flex-direction: column; gap: 16px; }
	.sdlr-hero-right { flex-direction: row; gap: 20px; align-items: center; }
	.sdlr-goal-label { font-size: 11px; }
	.sdlr-seo-cols   { grid-template-columns: 1fr; }
	.sdlr-seo-mode-list { grid-template-columns: 1fr; }
	.sdlr-hero-stats-row { gap: 10px; }
	.sdlr-hero-stat strong { font-size: 18px; }
}

@media (max-width: 440px) {
	.sdlr-modes-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
	.sdlr-mode-card  { padding: 12px 10px; }
	.sdlr-mode-icon  { font-size: 18px; }
	.sdlr-mode-name  { font-size: 12px; }
	.sdlr-mode-desc  { display: none; }
	.sdlr-mode-time  { display: none; }
	.sdlr-card-word  { font-size: 22px; }
	.sdlr-btn        { font-size: 12px; padding: 9px 6px; }
	.sdlr-sum-stat-num { font-size: 28px; }
	.sdlr-week-dot-circle { width: 22px; height: 22px; }
	.sdlr-hero-stats-row { gap: 8px; }
	.sdlr-hero-stat-sep { display: none; }
}