/* train.kaizer.app: la landing B2C de la app de alumnos.
   Sin fotos: la app es la protagonista (referencia: getdropset.app). Sistema de kaizer.app:
   fondo plano #0B0B0B, Advercase para títulos y números, Product Sans siempre regular,
   Monospace para toda mayúscula, naranja solo como acento. Sin glows, y nada se mueve en
   hover salvo el color o el borde. */

@font-face {
	font-family: "Advercase";
	src: url("/fonts/advercase-regular.woff2") format("woff2");
	font-display: swap;
}
@font-face {
	font-family: "Product Sans";
	src: url("/fonts/product-sans-regular.woff2") format("woff2");
	font-display: swap;
}
@font-face {
	font-family: "Monospace Typewriter";
	src: url("/fonts/monospace-typewriter.woff2") format("woff2");
	font-display: swap;
}

:root {
	--black: #0b0b0b;
	--card: #131313;
	--card-line: rgba(255, 255, 255, 0.06);
	--cream: #ecf0dd;
	--ink: rgba(236, 240, 221, 0.92);
	--muted: rgba(236, 240, 221, 0.68);
	--soft: rgba(236, 240, 221, 0.54);
	--line: rgba(236, 240, 221, 0.08);
	--line-strong: rgba(236, 240, 221, 0.18);
	--orange: #fd832b;
	--focus: rgba(253, 131, 43, 0.72);

	--serif: "Advercase", "Instrument Serif", Georgia, serif;
	--sans: "Product Sans", "Helvetica Neue", Arial, sans-serif;
	--mono: "Monospace Typewriter", ui-monospace, "SF Mono", Menlo, monospace;

	--gutter: 20px;
	--max: 1040px;
	--radius: 24px;
	--ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
	scroll-padding-top: 72px;
}

body {
	margin: 0;
	background: var(--black);
	color: var(--cream);
	font-family: var(--sans);
	font-weight: 400;
	font-size: 0.96875rem;
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	overflow-x: hidden;
}

img {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: inherit;
}

h1,
h2,
h3 {
	margin: 0;
	font-family: var(--serif);
	font-weight: 400;
	color: var(--ink);
	text-wrap: balance;
}

h2 {
	font-size: clamp(1.55rem, 5.4vw, 2.1rem);
	line-height: 1.12;
	letter-spacing: -0.015em;
}

h3 {
	font-size: 1.2rem;
	line-height: 1.25;
	letter-spacing: -0.01em;
}

p {
	margin: 0;
}

/* Product Sans nunca en negrita: el énfasis es color, no peso. */
strong {
	font-weight: 400;
	color: var(--ink);
}

.mono {
	font-family: var(--mono);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	font-size: 0.6875rem;
	line-height: 1.4;
	color: var(--soft);
}

.wrap {
	width: 100%;
	max-width: calc(var(--max) + var(--gutter) * 2);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

:focus-visible {
	outline: 2px solid var(--focus);
	outline-offset: 3px;
	border-radius: 6px;
}

.skip {
	position: absolute;
	left: 12px;
	top: -60px;
	z-index: 50;
	padding: 10px 14px;
	border-radius: 10px;
	background: var(--cream);
	color: var(--black);
	text-decoration: none;
}
.skip:focus {
	top: 12px;
}

/* Botones. */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	padding: 0 22px;
	border: 1px solid transparent;
	border-radius: 999px;
	font: inherit;
	font-size: 0.95rem;
	text-decoration: none;
	cursor: pointer;
	transition:
		background-color 200ms var(--ease),
		border-color 200ms var(--ease);
	-webkit-tap-highlight-color: transparent;
}
.btn:active {
	transform: scale(0.98);
}
.btn--primary {
	background: #f4f6ec;
	color: #050505;
}
.btn--soft {
	background: #222;
	color: var(--cream);
}
.btn--ghost {
	border-color: var(--line-strong);
	color: var(--cream);
	background: transparent;
}
.btn--small {
	min-height: 38px;
	padding: 0 16px;
	font-size: 0.875rem;
}
@media (hover: hover) {
	.btn--primary:hover {
		background: #fff;
	}
	.btn--soft:hover {
		background: #2c2c2c;
	}
	.btn--ghost:hover {
		border-color: rgba(236, 240, 221, 0.4);
	}
}

.stores {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}
.store {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	min-height: 50px;
	padding: 0 18px 0 14px;
	border-radius: 14px;
	background: #1d1d1d;
	border: 1px solid var(--card-line);
	color: var(--cream);
	text-decoration: none;
	transition: background-color 200ms var(--ease);
}
.store svg {
	width: 22px;
	height: 22px;
	flex: none;
}
.store span {
	display: grid;
	font-size: 0.98rem;
	line-height: 1.15;
}
.store small {
	font-family: var(--mono);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	font-size: 0.6875rem;
	color: var(--muted);
}
.store--light {
	background: #f4f6ec;
	color: #050505;
	border-color: transparent;
}
.store--light small {
	color: rgba(5, 5, 5, 0.64);
}
@media (hover: hover) {
	.store:hover {
		background: #262626;
	}
	.store--light:hover {
		background: #fff;
	}
}

.only-desktop {
	display: none !important;
}

/* Marco de teléfono dibujado: la captura real adentro, nada flotando alrededor. */
.phone {
	position: relative;
	padding: 7px;
	border-radius: 46px;
	background: #1a1a1a;
	border: 1px solid #2a2a2a;
	box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8);
}
.phone img {
	width: 100%;
	border-radius: 39px;
}
.phone::before {
	content: "";
	position: absolute;
	top: 17px;
	left: 50%;
	z-index: 2;
	width: 30%;
	height: 22px;
	border-radius: 999px;
	background: #000;
	transform: translateX(-50%);
}

/* Navbar. */
.nav {
	position: fixed;
	inset: 0 0 auto 0;
	z-index: 30;
	padding-top: env(safe-area-inset-top);
	background: rgba(11, 11, 11, 0.72);
	-webkit-backdrop-filter: blur(20px) saturate(1.4);
	backdrop-filter: blur(20px) saturate(1.4);
	border-bottom: 1px solid var(--line);
}
.nav__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 60px;
}
.nav__brand img {
	width: auto;
	height: 19px;
}

/* Hero. */
.hero {
	display: grid;
	gap: 40px;
	padding-top: 108px;
	overflow: hidden;
}
.hero__text {
	display: grid;
	gap: 16px;
	justify-items: start;
}
.hero h1 {
	font-size: clamp(2.15rem, 9.4vw, 3.4rem);
	line-height: 1.04;
	letter-spacing: -0.025em;
	max-width: 15ch;
	color: var(--cream);
}
.hero__lead {
	max-width: 36ch;
	color: var(--muted);
	font-size: 1.02rem;
	text-wrap: pretty;
}
.hero__actions {
	margin-top: 6px;
}
.ratings {
	display: flex;
	gap: 28px;
	margin: 8px 0 0;
	padding: 0;
	list-style: none;
}
.ratings li {
	display: grid;
	align-content: start;
	gap: 6px;
}
/* Sin estrellas: baja lo que ocupan para quedar alineado con las otras dos. */
.ratings__people {
	padding-top: 18px;
}
.ratings .mono {
	white-space: nowrap;
	font-size: 0.6875rem;
	letter-spacing: 0.06em;
}
.ratings strong {
	font-family: var(--serif);
	font-size: 1.35rem;
	line-height: 1;
}

.stars {
	display: block;
	width: 70px;
	height: 12px;
	background: var(--cream);
	opacity: 0.85;
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 70 12'%3E%3Cg fill='%23000'%3E%3Cpath id='s' d='M6 0l1.76 3.9 4.24.43-3.18 2.85.92 4.17L6 9.2 2.26 11.35l.92-4.17L0 4.33l4.24-.43z'/%3E%3Cuse href='%23s' x='14.5'/%3E%3Cuse href='%23s' x='29'/%3E%3Cuse href='%23s' x='43.5'/%3E%3Cuse href='%23s' x='58'/%3E%3C/g%3E%3C/svg%3E")
		no-repeat left / contain;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 70 12'%3E%3Cg fill='%23000'%3E%3Cpath id='s' d='M6 0l1.76 3.9 4.24.43-3.18 2.85.92 4.17L6 9.2 2.26 11.35l.92-4.17L0 4.33l4.24-.43z'/%3E%3Cuse href='%23s' x='14.5'/%3E%3Cuse href='%23s' x='29'/%3E%3Cuse href='%23s' x='43.5'/%3E%3Cuse href='%23s' x='58'/%3E%3C/g%3E%3C/svg%3E")
		no-repeat left / contain;
}

/* El teléfono del hero asoma y se corta abajo, como si saliera de la página. */
.hero__phone {
	position: relative;
	justify-self: center;
	width: min(76vw, 330px);
	height: min(118vw, 520px);
	overflow: hidden;
	-webkit-mask-image: linear-gradient(180deg, #000 70%, transparent 100%);
	mask-image: linear-gradient(180deg, #000 70%, transparent 100%);
}

/* Secciones. */
.section {
	padding-top: 96px;
}
.section__head {
	display: grid;
	gap: 10px;
	margin-bottom: 36px;
	max-width: 560px;
}
.section__head p {
	color: var(--muted);
	max-width: 46ch;
}

/* La IA y la sobrecarga progresiva: dos tarjetas grandes con la pieza real abajo. */
.features {
	display: grid;
	gap: 12px;
}
.feature {
	display: grid;
	grid-template-rows: auto 1fr;
	align-content: start;
	margin: 0;
	overflow: hidden;
	border-radius: 28px;
	background: var(--card);
	border: 1px solid var(--card-line);
}
.feature__text {
	display: grid;
	gap: 10px;
	padding: 26px 24px 20px;
}
.feature__text h3 {
	font-size: 1.5rem;
}
.feature__text p {
	color: var(--muted);
	font-size: 0.94rem;
	max-width: 46ch;
}
.feature img {
	align-self: end;
	width: calc(100% - 20px);
	margin: 0 10px 10px;
	border-radius: 18px;
	border: 1px solid var(--card-line);
}

/* Así funciona. */
.tour__steps {
	display: grid;
	gap: 56px;
	margin: 0;
	padding: 0;
	list-style: none;
}
.tour__step {
	display: grid;
	gap: 8px;
}
.tour__step .mono {
	color: var(--orange);
}
.tour__step p {
	color: var(--muted);
	max-width: 40ch;
}
/* La pantalla de la IA tiene la hoja abajo: se muestra la parte de abajo del teléfono. */
.phone--end {
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	height: 380px;
	border-radius: 0 0 46px 46px !important;
	border-top: 0 !important;
	border-bottom: 1px solid #2a2a2a !important;
	-webkit-mask-image: linear-gradient(0deg, #000 72%, transparent 100%) !important;
	mask-image: linear-gradient(0deg, #000 72%, transparent 100%) !important;
}
.phone--end img {
	border-radius: 0 0 39px 39px;
}
.phone--end::before {
	display: none;
}
.phone--crop {
	margin-top: 16px;
	width: min(80vw, 320px);
	max-height: 380px;
	overflow: hidden;
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
	border-bottom: 0;
	-webkit-mask-image: linear-gradient(180deg, #000 72%, transparent 100%);
	mask-image: linear-gradient(180deg, #000 72%, transparent 100%);
}

/* Bento. */
.bento {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}
.card {
	margin: 0;
	border-radius: var(--radius);
	background: var(--card);
	border: 1px solid var(--card-line);
	overflow: hidden;
}
.card strong {
	display: block;
	margin-bottom: 2px;
	font-size: 0.98rem;
}
.card--media {
	grid-column: 1 / -1;
	display: flex;
	flex-direction: column;
}
/* La pieza va como una ventana a la app, con su propio borde. */
.card--media img {
	width: calc(100% - 20px);
	margin: 10px 10px 0;
	border-radius: 16px;
	border: 1px solid var(--card-line);
}
.card--media figcaption {
	padding: 14px 20px 20px;
	color: var(--muted);
	font-size: 0.9rem;
	line-height: 1.45;
}
.card--icon {
	display: grid;
	align-content: space-between;
	gap: 28px;
	padding: 18px;
	min-height: 168px;
}
.card--icon svg {
	width: 30px;
	height: 30px;
	color: var(--cream);
	opacity: 0.85;
}
.card__figure {
	font-family: var(--serif);
	font-size: 2.6rem;
	line-height: 1;
	letter-spacing: -0.02em;
	color: var(--cream);
}
.card--icon p {
	color: var(--muted);
	font-size: 0.86rem;
	line-height: 1.4;
}

/* Gratis o Pro. */
.plans {
	display: grid;
	gap: 12px;
}
.plan {
	display: grid;
	gap: 14px;
	align-content: start;
	padding: 24px;
	border-radius: var(--radius);
	background: var(--card);
	border: 1px solid var(--card-line);
}
.plan h3 {
	font-size: 1.35rem;
}
.plan ul {
	display: grid;
	gap: 10px;
	margin: 6px 0 0;
	padding: 0;
	list-style: none;
}
.plan li {
	display: grid;
	grid-template-columns: 18px 1fr;
	gap: 10px;
	align-items: start;
	color: var(--muted);
	font-size: 0.92rem;
	line-height: 1.45;
}
.plan li svg {
	width: 18px;
	height: 18px;
	margin-top: 1px;
	color: var(--cream);
	opacity: 0.7;
}
.plan--pro {
	background: #171717;
	border-color: rgba(236, 240, 221, 0.14);
}
.plan--pro li {
	color: rgba(236, 240, 221, 0.78);
}
.plan__lead {
	color: var(--muted);
	font-size: 0.92rem;
}
.plan__note {
	margin-top: 4px;
	padding-top: 14px;
	border-top: 1px solid var(--line);
	color: var(--soft);
	font-size: 0.82rem;
}

/* Reseñas. */
.reviews {
	display: grid;
	gap: 12px;
}
.review {
	display: grid;
	gap: 10px;
	align-content: start;
	margin: 0;
	padding: 22px;
	border-radius: var(--radius);
	background: var(--card);
	border: 1px solid var(--card-line);
}
.review p {
	color: var(--muted);
	font-size: 0.92rem;
}
.review footer {
	margin-top: 4px;
}
.review--summary {
	gap: 20px;
	align-content: center;
}
.review--summary > div {
	display: grid;
	grid-template-columns: auto 1fr;
	align-items: center;
	column-gap: 14px;
	row-gap: 4px;
}
.review--summary .review__score {
	grid-row: span 2;
}
.review--summary > div + div {
	padding-top: 20px;
	border-top: 1px solid var(--line);
}
.review__score {
	font-family: var(--serif);
	font-size: 2.6rem;
	line-height: 1;
	letter-spacing: -0.02em;
}

/* FAQ. */
.faq__list {
	border-top: 1px solid var(--line);
}
.faq details {
	border-bottom: 1px solid var(--line);
}
.faq summary {
	position: relative;
	display: block;
	padding: 18px 40px 18px 0;
	color: var(--ink);
	cursor: pointer;
	list-style: none;
}
.faq summary::-webkit-details-marker {
	display: none;
}
.faq summary::before,
.faq summary::after {
	content: "";
	position: absolute;
	right: 4px;
	top: 50%;
	width: 12px;
	height: 1.5px;
	background: var(--muted);
	transition: transform 240ms var(--ease);
}
.faq summary::after {
	transform: rotate(90deg);
}
.faq details[open] summary::after {
	transform: rotate(0deg);
}
.faq details p {
	padding: 0 0 18px;
	color: var(--muted);
	font-size: 0.92rem;
	max-width: 62ch;
}
@media (hover: hover) {
	.faq summary:hover {
		color: var(--cream);
	}
}

/* Cierre. */
.closing {
	display: grid;
	gap: 28px;
	padding: 32px 24px;
	border-radius: 28px;
	background: var(--card);
	border: 1px solid var(--card-line);
}
.closing__text {
	display: grid;
	gap: 14px;
	justify-items: start;
}
.closing__text p {
	color: var(--muted);
	max-width: 40ch;
}
.qr {
	display: grid;
	justify-items: center;
	gap: 10px;
	text-align: center;
}
.qr img {
	width: 112px;
	height: 112px;
	padding: 8px;
	border-radius: 14px;
	background: #f4f6ec;
}
.qr p {
	font-size: 0.8rem;
	color: var(--soft);
	max-width: 16ch;
}

/* Footer. */
.footer {
	display: grid;
	gap: 16px;
	margin-top: 72px;
	padding-block: 28px calc(110px + env(safe-area-inset-bottom));
	border-top: 1px solid var(--line);
	font-size: 0.8rem;
	color: var(--soft);
}
.footer p {
	max-width: 70ch;
}
.footer nav {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
}
.footer a {
	text-decoration: none;
	color: var(--muted);
	transition: color 200ms var(--ease);
}
@media (hover: hover) {
	.footer a:hover {
		color: var(--cream);
	}
}

/* Botón fijo del celular. */
.sticky {
	position: fixed;
	inset: auto 0 0 0;
	z-index: 25;
	padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
	background: rgba(11, 11, 11, 0.82);
	-webkit-backdrop-filter: blur(20px) saturate(1.4);
	backdrop-filter: blur(20px) saturate(1.4);
	border-top: 1px solid var(--line);
	transform: translateY(110%);
	transition: transform 320ms var(--ease);
}
.sticky .btn {
	width: 100%;
}
.sticky.is-on {
	transform: translateY(0);
}

/* Cookies. */
.consent {
	position: fixed;
	left: 12px;
	right: 12px;
	bottom: calc(12px + env(safe-area-inset-bottom));
	z-index: 40;
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: 12px;
	padding: 10px 10px 10px 14px;
	border: 1px solid var(--line-strong);
	border-radius: 16px;
	background: rgba(19, 19, 19, 0.95);
	-webkit-backdrop-filter: blur(20px);
	backdrop-filter: blur(20px);
	font-size: 0.8rem;
	line-height: 1.35;
	color: var(--muted);
}
.consent[hidden] {
	display: none;
}
.consent > div {
	display: flex;
	gap: 6px;
}
.consent .btn {
	min-height: 40px;
	padding: 0 14px;
	font-size: 0.82rem;
}

/* Entrada de cada bloque: una vez, corta y sin rebote. */
.js [data-reveal] {
	opacity: 0;
	transform: translateY(12px);
	transition:
		opacity 600ms var(--ease),
		transform 600ms var(--ease);
}
.js [data-reveal].is-in {
	opacity: 1;
	transform: none;
}

/* Escritorio. */
@media (min-width: 900px) {
	:root {
		--gutter: 40px;
	}
	.only-mobile {
		display: none !important;
	}
	.only-desktop {
		display: flex !important;
	}
	.qr.only-desktop {
		display: grid !important;
	}
	.sticky {
		display: none;
	}
	.nav__inner {
		height: 64px;
	}

	.hero {
		grid-template-columns: 1.15fr 0.85fr;
		align-items: center;
		gap: 48px;
		padding-top: 112px;
	}
	.hero__text {
		gap: 18px;
		padding-bottom: 40px;
	}
	.hero__phone {
		width: 350px;
		height: 600px;
		justify-self: end;
		margin-right: 16px;
	}

	.section {
		padding-top: 140px;
	}
	.section__head {
		margin-bottom: 48px;
	}

	/* Así funciona: pasos a la izquierda, el teléfono fijo a la derecha. */
	.tour {
		display: grid;
		grid-template-columns: 1fr 340px;
		gap: 80px;
		align-items: start;
	}
	.tour__steps {
		gap: 0;
	}
	.tour__step {
		min-height: 46vh;
		align-content: center;
		opacity: 0.32;
		transition: opacity 400ms var(--ease);
	}
	.tour__step.is-active {
		opacity: 1;
	}
	.tour__step h3 {
		font-size: 1.5rem;
	}
	.tour__sticky {
		position: sticky;
		top: calc(50vh - 340px);
		display: block !important;
	}
	.tour__sticky .phone {
		display: grid;
	}
	.tour__sticky img {
		grid-area: 1 / 1;
		opacity: 0;
		transition: opacity 500ms var(--ease);
	}
	.tour__sticky img.is-active {
		opacity: 1;
	}

	/* Bento de tres columnas. */
	.bento {
		grid-template-columns: repeat(3, 1fr);
		grid-auto-rows: auto;
		gap: 14px;
	}
	.card--media {
		grid-column: auto;
	}
	.card--a {
		grid-column: 1;
		grid-row: 1 / span 2;
	}
	.card--a img {
		flex: 1 1 auto;
		min-height: 0;
		object-fit: contain;
		background: #0b0b0b;
	}
	.card--b {
		grid-column: 2;
		grid-row: 1;
	}
	.card--c {
		grid-column: 2;
		grid-row: 2;
	}
	.card--d {
		grid-column: 3;
		grid-row: 1;
	}
	.card--e {
		grid-column: 3;
		grid-row: 2;
	}
	.card--f {
		grid-column: 1 / span 2;
		grid-row: 3 / span 2;
		display: grid;
		grid-template-columns: 1fr 1fr;
		align-items: end;
	}
	.card--f figcaption {
		padding: 24px;
		order: -1;
	}
	.card--f img {
		align-self: start;
		width: auto;
		margin: 10px;
	}
	.card--g {
		grid-column: 3;
		grid-row: 3;
	}
	.card--h {
		grid-column: 3;
		grid-row: 4;
	}

	.reviews {
		grid-template-columns: repeat(3, 1fr);
		gap: 14px;
	}
	.features {
		grid-template-columns: 1fr 1fr;
		gap: 14px;
	}
	.feature__text {
		padding: 36px 36px 24px;
	}
	.feature__text h3 {
		font-size: 1.85rem;
	}
	.plans {
		grid-template-columns: 1fr 1fr;
		gap: 14px;
	}
	.plan {
		padding: 32px;
	}

	.faq {
		display: grid;
		grid-template-columns: 1fr 1.6fr;
		gap: 48px;
		align-items: start;
	}
	.faq .section__head {
		margin-bottom: 0;
	}

	.closing {
		grid-template-columns: 1fr auto;
		align-items: center;
		padding: 48px;
	}

	.footer {
		grid-template-columns: 1fr auto;
		align-items: end;
		padding-bottom: 40px;
	}

	.consent {
		left: auto;
		right: 24px;
		bottom: 24px;
		max-width: 460px;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	.js [data-reveal] {
		opacity: 1;
		transform: none;
		transition: none;
	}
	.sticky,
	.tour__step,
	.tour__sticky img,
	.faq summary::after {
		transition: none;
	}
}