/* ==========================================================================
   Notes Baba Frontpage — stylesheet
   Design tokens
   --nb-paper      #FFF9F2  warm paper background
   --nb-ink        #1B2A4A  deep navy ink (text, contrast)
   --nb-orange     #FF6B1A  primary saffron-orange
   --nb-orange-deep#C2410C  rust accent / hover
   --nb-amber      #FFB020  secondary highlight
   --nb-orange-soft#FFE7D1  tinted card backgrounds
   Type: Fraunces (display) / Plus Jakarta Sans (body) / JetBrains Mono (utility)
   Everything is scoped under .nb-home so it cannot leak into, or be
   overridden unpredictably by, the active theme's global styles.
   ========================================================================== */

.nb-home {
	--nb-paper: #FFFFFF;
	--nb-ink: #111111;
	--nb-orange: #FF6B1A;
	--nb-orange-deep: #C2410C;
	--nb-amber: #FFB020;
	--nb-orange-soft: #FFE7D1;
	--nb-white: #FFFFFF;
	--nb-line: rgba(17, 17, 17, 0.12);
	--nb-grey: #4B5563;

	--nb-font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
	--nb-font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--nb-font-mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;

	background: var(--nb-paper);
	color: var(--nb-ink);
	font-family: var(--nb-font-body);
	line-height: 1.55;
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
}

.nb-home * { box-sizing: border-box; }
.nb-home img { max-width: 100%; display: block; }
.nb-home a { color: inherit; text-decoration: none; }
.nb-home ol, .nb-home ul { list-style: none; margin: 0; padding: 0; }
.nb-home blockquote { margin: 0; }

.nb-home .screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}

/* ---------- shared section rhythm ---------- */

.nb-home .nb-section {
	max-width: 1180px;
	margin: 0 auto;
	padding: clamp(3.5rem, 7vw, 6.5rem) 1.5rem;
}

.nb-home .nb-section__head {
	max-width: 640px;
	margin: 0 auto 2.75rem;
	text-align: center;
}

.nb-home .nb-eyebrow {
	font-family: var(--nb-font-mono);
	font-size: 0.75rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--nb-orange-deep);
	font-weight: 700;
	margin: 0 0 0.75rem;
}

.nb-home .nb-section__title {
	font-family: var(--nb-font-display);
	font-weight: 600;
	font-size: clamp(1.6rem, 3vw, 2.35rem);
	line-height: 1.2;
	margin: 0;
	color: var(--nb-ink);
}

/* ==========================================================================
   HERO
   ========================================================================== */

.nb-home .nb-hero {
	position: relative;
	padding: clamp(4rem, 10vw, 7rem) 1.5rem clamp(3rem, 7vw, 5rem);
	background:
		radial-gradient(ellipse at 20% -10%, rgba(255, 107, 26, 0.16), transparent 55%),
		radial-gradient(ellipse at 85% 10%, rgba(255, 176, 32, 0.18), transparent 50%),
		var(--nb-paper);
	overflow: hidden;
	isolation: isolate;
}

.nb-home .nb-hero__bg {
	position: absolute;
	inset: 0;
	z-index: 0;
	pointer-events: none;
}

.nb-home .nb-hero__glow {
	position: absolute;
	border-radius: 50%;
	filter: blur(60px);
	opacity: 0.55;
	animation: nb-drift 18s ease-in-out infinite;
}
.nb-home .nb-hero__glow--a {
	width: 380px; height: 380px;
	top: -120px; left: -80px;
	background: var(--nb-orange);
	opacity: 0.22;
}
.nb-home .nb-hero__glow--b {
	width: 320px; height: 320px;
	bottom: -140px; right: -60px;
	background: var(--nb-amber);
	opacity: 0.24;
	animation-delay: 4s;
}

.nb-home .nb-shape {
	position: absolute;
	font-family: var(--nb-font-display);
	color: var(--nb-orange-deep);
	opacity: 0.14;
	user-select: none;
	animation: nb-float 12s ease-in-out infinite;
}
.nb-home .nb-shape--pi    { top: 14%; left: 6%;  font-size: 3.4rem; animation-duration: 14s; }
.nb-home .nb-shape--sigma { top: 62%; left: 11%; font-size: 2.6rem; animation-duration: 16s; animation-delay: 1s; }
.nb-home .nb-shape--root  { top: 22%; right: 9%;  font-size: 3rem;  animation-duration: 13s; animation-delay: 2s; }
.nb-home .nb-shape--star  { top: 74%; right: 14%; font-size: 1.8rem; animation-duration: 10s; animation-delay: 0.5s; color: var(--nb-amber); opacity: 0.4;}
.nb-home .nb-shape--atom  { top: 6%;  right: 30%; font-size: 2.2rem; animation-duration: 15s; animation-delay: 3s; }
.nb-home .nb-shape--dot { width: 10px; height: 10px; border-radius: 50%; background: var(--nb-orange); opacity: 0.3; }
.nb-home .nb-shape--dot1 { top: 40%; left: 22%; animation-duration: 9s; }
.nb-home .nb-shape--dot2 { top: 18%; right: 20%; animation-duration: 11s; animation-delay: 1.5s; }
.nb-home .nb-shape--dot3 { bottom: 12%; left: 42%; animation-duration: 10s; animation-delay: 2.5s; }

@keyframes nb-float {
	0%, 100% { transform: translateY(0) rotate(0deg); }
	50% { transform: translateY(-22px) rotate(6deg); }
}
@keyframes nb-drift {
	0%, 100% { transform: translate(0, 0) scale(1); }
	50% { transform: translate(30px, -20px) scale(1.08); }
}

.nb-home .nb-hero__inner {
	position: relative;
	z-index: 1;
	max-width: 780px;
	margin: 0 auto;
	text-align: center;
}

.nb-home .nb-hero__title {
	font-family: var(--nb-font-display);
	font-weight: 600;
	font-size: clamp(2.2rem, 6vw, 3.6rem);
	line-height: 1.12;
	letter-spacing: -0.01em;
	margin: 0 0 1.25rem;
	color: var(--nb-ink);
}
.nb-home .nb-hero__title-accent {
	font-style: italic;
	color: var(--nb-orange-deep);
}

.nb-home .nb-hero__subtitle {
	font-size: clamp(1rem, 1.6vw, 1.15rem);
	color: var(--nb-grey);
	max-width: 560px;
	margin: 0 auto 2.5rem;
}

/* ---------- signature: admit-card search ---------- */

.nb-home .nb-admit {
	position: relative;
	max-width: 620px;
	margin: 0 auto 2.75rem;
	background: var(--nb-white);
	border: 2px dashed rgba(194, 65, 12, 0.45);
	border-radius: 18px;
	padding: 1.4rem 1.5rem 1.2rem;
	box-shadow: 0 22px 45px -18px rgba(27, 42, 74, 0.28);
	text-align: left;
}
.nb-home .nb-admit::before,
.nb-home .nb-admit::after {
	content: "";
	position: absolute;
	top: 50%;
	width: 22px; height: 22px;
	background: var(--nb-paper);
	border: 2px dashed rgba(194, 65, 12, 0.45);
	border-radius: 50%;
	transform: translateY(-50%);
}
.nb-home .nb-admit::before { left: -12px; }
.nb-home .nb-admit::after { right: -12px; }

.nb-home .nb-admit__stamp {
	position: absolute;
	top: -14px;
	right: 18px;
	background: var(--nb-orange-deep);
	color: var(--nb-white);
	font-family: var(--nb-font-mono);
	font-size: 0.62rem;
	line-height: 1.2;
	text-align: center;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	padding: 0.4rem 0.6rem;
	border-radius: 6px;
	border: 2px solid var(--nb-white);
	transform: rotate(6deg);
	box-shadow: 0 6px 14px -6px rgba(194, 65, 12, 0.6);
}

.nb-home .nb-admit__row--label {
	display: flex;
	justify-content: space-between;
	align-items: center;
	border-bottom: 1px dashed var(--nb-line);
	padding-bottom: 0.65rem;
	margin-bottom: 0.85rem;
}
.nb-home .nb-admit__eyebrow {
	font-family: var(--nb-font-mono);
	font-weight: 700;
	font-size: 0.72rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--nb-orange-deep);
}
.nb-home .nb-admit__serial {
	font-family: var(--nb-font-mono);
	font-size: 0.68rem;
	color: var(--nb-grey);
}

.nb-home .nb-admit__row--input {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	background: var(--nb-paper);
	border: 1px solid var(--nb-line);
	border-radius: 12px;
	padding: 0.35rem 0.35rem 0.35rem 0.9rem;
}
.nb-home .nb-admit__icon { color: var(--nb-orange-deep); flex-shrink: 0; }
.nb-home .nb-admit__input {
	flex: 1;
	border: 0;
	background: transparent;
	font-family: var(--nb-font-body);
	font-size: 1rem;
	color: var(--nb-ink);
	padding: 0.6rem 0.2rem;
	min-width: 0;
}
.nb-home .nb-admit__input:focus { outline: none; }
.nb-home .nb-admit__input::placeholder { color: var(--nb-grey); }

.nb-home .nb-admit__submit {
	font-family: var(--nb-font-body);
	font-weight: 700;
	font-size: 0.9rem;
	color: var(--nb-white);
	background: var(--nb-orange);
	border: 0;
	border-radius: 9px;
	padding: 0.72rem 1.3rem;
	cursor: pointer;
	transition: background-color 0.2s ease, transform 0.2s ease;
	flex-shrink: 0;
}
.nb-home .nb-admit__submit:hover { background: var(--nb-orange-deep); transform: translateY(-1px); }
.nb-home .nb-admit__submit:focus-visible { outline: 3px solid var(--nb-amber); outline-offset: 2px; }

.nb-home .nb-admit__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem 0.6rem;
	align-items: center;
	margin-top: 0.9rem;
	font-size: 0.8rem;
	color: var(--nb-grey);
}
.nb-home .nb-admit__tags a {
	font-weight: 600;
	color: var(--nb-orange-deep);
	border-bottom: 1px solid transparent;
	transition: border-color 0.2s ease;
}
.nb-home .nb-admit__tags a:hover { border-color: var(--nb-orange-deep); }

/* ---------- hero stats ---------- */

.nb-home .nb-hero__stats {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: clamp(1.5rem, 4vw, 3rem);
}
.nb-home .nb-stat { text-align: center; }
.nb-home .nb-stat__num {
	display: block;
	font-family: var(--nb-font-mono);
	font-weight: 700;
	font-size: clamp(1.3rem, 2.4vw, 1.7rem);
	color: var(--nb-orange-deep);
}
.nb-home .nb-stat__label {
	display: block;
	font-size: 0.78rem;
	color: var(--nb-grey);
	margin-top: 0.15rem;
}

/* ==========================================================================
   CARDS + REVEAL EFFECT
   ========================================================================== */

.nb-home .nb-reveal {
	opacity: 0;
	transform: translateY(28px);
	transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.3, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.nb-home .nb-reveal.is-visible {
	opacity: 1;
	transform: translateY(0);
}
.nb-home .nb-reveal-grid .nb-reveal:nth-child(2) { transition-delay: 0.08s; }
.nb-home .nb-reveal-grid .nb-reveal:nth-child(3) { transition-delay: 0.16s; }
.nb-home .nb-reveal-grid .nb-reveal:nth-child(4) { transition-delay: 0.24s; }
.nb-home .nb-reveal-grid .nb-reveal:nth-child(5) { transition-delay: 0.32s; }
.nb-home .nb-reveal-grid .nb-reveal:nth-child(6) { transition-delay: 0.4s; }

.nb-home .nb-card {
	background: var(--nb-white);
	border: 1px solid var(--nb-line);
	border-radius: 16px;
	padding: 1.9rem 1.7rem;
	transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.nb-home .nb-card:hover {
	transform: translateY(-6px);
	box-shadow: 0 24px 40px -22px rgba(27, 42, 74, 0.28);
	border-color: rgba(255, 107, 26, 0.35);
}

.nb-home .nb-card__title {
	font-family: var(--nb-font-display);
	font-weight: 600;
	font-size: 1.15rem;
	margin: 0 0 0.5rem;
	color: var(--nb-ink);
}
.nb-home .nb-card__text {
	font-size: 0.94rem;
	color: var(--nb-grey);
	margin: 0;
}

/* ---------- category cards ---------- */

.nb-home .nb-cat-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}
.nb-home .nb-cat-card { position: relative; overflow: hidden; }
.nb-home .nb-cat-card::before {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(160deg, var(--nb-orange-soft), transparent 55%);
	opacity: 0;
	transition: opacity 0.3s ease;
}
.nb-home .nb-cat-card:hover::before { opacity: 1; }
.nb-home .nb-cat-card__icon { font-size: 2.1rem; margin-bottom: 0.9rem; position: relative; }
.nb-home .nb-card__link {
	display: inline-block;
	margin-top: 1rem;
	font-weight: 700;
	font-size: 0.9rem;
	color: var(--nb-orange-deep);
	position: relative;
}

/* ---------- feature cards ---------- */

.nb-home .nb-feature-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}
.nb-home .nb-feature-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 46px; height: 46px;
	font-size: 1.4rem;
	background: var(--nb-orange-soft);
	border-radius: 12px;
	margin-bottom: 1rem;
}

/* ---------- exam chips ---------- */

.nb-home .nb-exam-chips {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.75rem;
}
.nb-home .nb-chip {
	font-family: var(--nb-font-mono);
	font-size: 0.85rem;
	font-weight: 500;
	background: var(--nb-white);
	border: 1px solid var(--nb-line);
	border-radius: 999px;
	padding: 0.6rem 1.2rem;
	transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.nb-home .nb-chip:hover {
	background: var(--nb-orange);
	color: var(--nb-white);
	border-color: var(--nb-orange);
	transform: translateY(-3px);
}

/* ---------- steps ---------- */

.nb-home .nb-step-list {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1.5rem;
	counter-reset: nb-step;
}
.nb-home .nb-step {
	background: var(--nb-white);
	border: 1px solid var(--nb-line);
	border-radius: 16px;
	padding: 1.8rem 1.6rem;
	position: relative;
}
.nb-home .nb-step__num {
	font-family: var(--nb-font-mono);
	font-weight: 700;
	font-size: 0.85rem;
	color: var(--nb-white);
	background: var(--nb-orange-deep);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 34px; height: 34px;
	border-radius: 50%;
	margin-bottom: 1rem;
}

/* ---------- testimonials ---------- */

.nb-home .nb-testimonial-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}
.nb-home .nb-testimonial-card { display: flex; flex-direction: column; }
.nb-home .nb-stars { color: var(--nb-amber); font-size: 0.9rem; margin-bottom: 0.8rem; letter-spacing: 0.1em; }
.nb-home .nb-testimonial-card blockquote {
	font-family: var(--nb-font-display);
	font-size: 1.02rem;
	line-height: 1.5;
	color: var(--nb-ink);
	flex-grow: 1;
}
.nb-home .nb-testimonial-card figcaption {
	display: flex;
	flex-direction: column;
	margin-top: 1.2rem;
	padding-top: 1rem;
	border-top: 1px solid var(--nb-line);
	font-size: 0.85rem;
}
.nb-home .nb-testimonial-card figcaption strong { color: var(--nb-ink); }
.nb-home .nb-testimonial-card figcaption span { color: var(--nb-grey); }

/* ---------- FAQ ---------- */

.nb-home .nb-faq-list {
	max-width: 760px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	gap: 0.8rem;
}
.nb-home .nb-faq-item {
	background: var(--nb-white);
	border: 1px solid var(--nb-line);
	border-radius: 14px;
	padding: 1.1rem 1.4rem;
}
.nb-home .nb-faq-item summary {
	cursor: pointer;
	font-weight: 700;
	font-family: var(--nb-font-body);
	list-style: none;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
}
.nb-home .nb-faq-item summary::-webkit-details-marker { display: none; }
.nb-home .nb-faq-item summary::after {
	content: "+";
	font-size: 1.3rem;
	color: var(--nb-orange-deep);
	flex-shrink: 0;
	transition: transform 0.2s ease;
}
.nb-home .nb-faq-item[open] summary::after { transform: rotate(45deg); }
.nb-home .nb-faq-item p {
	margin: 0.8rem 0 0;
	color: var(--nb-grey);
	font-size: 0.95rem;
}

/* ---------- final CTA ---------- */

.nb-home .nb-cta__card {
	position: relative;
	background: linear-gradient(135deg, var(--nb-orange), var(--nb-orange-deep));
	border-radius: 24px;
	padding: clamp(2.5rem, 6vw, 3.75rem);
	text-align: center;
	overflow: hidden;
}
.nb-home .nb-cta__card::before {
	content: "";
	position: absolute;
	inset: 0;
	background: radial-gradient(circle at 80% 0%, rgba(255,255,255,0.25), transparent 55%);
}
.nb-home .nb-cta__title {
	position: relative;
	font-family: var(--nb-font-display);
	font-weight: 600;
	font-size: clamp(1.5rem, 3.4vw, 2.1rem);
	color: var(--nb-white);
	margin: 0 0 0.75rem;
}
.nb-home .nb-cta__text {
	position: relative;
	color: rgba(255, 255, 255, 0.9);
	margin: 0 0 1.75rem;
}
.nb-home .nb-cta__button {
	position: relative;
	display: inline-block;
	background: var(--nb-white);
	color: var(--nb-orange-deep);
	font-weight: 700;
	padding: 0.9rem 1.9rem;
	border-radius: 999px;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nb-home .nb-cta__button:hover {
	transform: translateY(-3px);
	box-shadow: 0 16px 30px -12px rgba(0,0,0,0.35);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 900px) {
	.nb-home .nb-cat-grid,
	.nb-home .nb-feature-grid,
	.nb-home .nb-testimonial-grid { grid-template-columns: repeat(2, 1fr); }
	.nb-home .nb-step-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
	.nb-home .nb-cat-grid,
	.nb-home .nb-feature-grid,
	.nb-home .nb-testimonial-grid,
	.nb-home .nb-step-list { grid-template-columns: 1fr; }

	.nb-home .nb-admit__row--input { flex-wrap: wrap; }
	.nb-home .nb-admit__submit { width: 100%; }
	.nb-home .nb-admit__stamp { right: 8px; font-size: 0.56rem; }
	.nb-home .nb-hero__stats { gap: 1.2rem 1.8rem; }
}

/* ==========================================================================
   MOTION PREFERENCE
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
	.nb-home .nb-shape,
	.nb-home .nb-hero__glow { animation: none; }
	.nb-home .nb-reveal {
		transition: none;
		opacity: 1;
		transform: none;
	}
}