/* ==========================================================================
   SONINGEO — Sistema de diseño
   Tokens: azul principal + arena + carbón + blanco + ámbar (guiño a las
   banderolas de topografía en campo).
   Tipografía: Space Grotesk (display) + Inter (texto) + JetBrains Mono
   (etiquetas técnicas / códigos de servicio).
   ========================================================================== */

:root {
	--son-blue: #2A90CA;
	--son-blue-deep: #155377;
	--son-blue-pale: #EAF3FA;
	--son-yellow: #F7CB08;
	--son-yellow-deep: #D9AF00;
	--son-mist: #F3F1EA;
	--son-ink: #171C1F;
	--son-white: #FFFFFF;
	--son-line: rgba(23, 28, 31, 0.12);
	--son-line-light: rgba(255, 255, 255, 0.18);
	--son-light-text: rgba(255, 255, 255, 0.82);

	--son-font-display: 'Space Grotesk', sans-serif;
	--son-font-body: 'Inter', sans-serif;
	--son-font-mono: 'JetBrains Mono', monospace;

	--son-container: 1200px;
	--son-radius: 6px;
}

/* ---------- Reset base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
	margin: 0;
	font-family: var(--son-font-body);
	color: var(--son-ink);
	background: var(--son-white);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
	font-family: var(--son-font-display);
	margin: 0 0 0.5em;
	line-height: 1.15;
	font-weight: 600;
	letter-spacing: -0.01em;
}
p { margin: 0 0 1em; }
button { font-family: inherit; cursor: pointer; }

.son-sr-only {
	position: absolute; width: 1px; height: 1px;
	overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

:focus-visible {
	outline: 2px solid var(--son-blue);
	outline-offset: 2px;
}

.son-container {
	max-width: var(--son-container);
	margin: 0 auto;
	padding: 0 24px;
}

.son-eyebrow {
	font-family: var(--son-font-mono);
	font-size: 0.75rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--son-blue-deep);
	display: inline-block;
	margin-bottom: 0.9em;
}
.son-eyebrow--light { color: var(--son-light-text); }

/* ---------- Botones ---------- */
.son-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 28px;
	border-radius: var(--son-radius);
	font-weight: 600;
	font-size: 0.95rem;
	border: 1px solid transparent;
	transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .15s ease;
}
.son-btn--sm { padding: 10px 20px; font-size: 0.85rem; }
.son-btn--primary { background: var(--son-yellow); color: var(--son-ink); }
.son-btn--primary:hover { background: var(--son-yellow-deep); transform: translateY(-1px); }
.son-btn--ghost-light { border-color: var(--son-line-light); color: var(--son-white); }
.son-btn--ghost-light:hover { background: rgba(255,255,255,0.1); }
.son-btn--light { background: var(--son-white); color: var(--son-blue-deep); }
.son-btn--light:hover { background: var(--son-mist); }

/* Chip del hero (sustituye al eyebrow claro) */
.son-chip {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	background: var(--son-yellow);
	color: var(--son-ink);
	font-family: var(--son-font-mono);
	font-size: 0.78rem;
	font-weight: 500;
	letter-spacing: 0.04em;
	padding: 8px 16px;
	border-radius: 999px;
	margin-bottom: 1.4em;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.son-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--son-white);
	border-bottom: 1px solid var(--son-line);
}
.son-header__logo-img { height: 46px; width: auto; }
.son-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	padding-top: 14px;
	padding-bottom: 14px;
}
.son-nav__list {
	display: flex;
	gap: 28px;
}
.son-nav__list a {
	font-size: 0.95rem;
	font-weight: 500;
	position: relative;
}
.son-nav__list a::after {
	content: "";
	position: absolute;
	left: 0; bottom: -6px;
	width: 0; height: 2px;
	background: var(--son-blue);
	transition: width .2s ease;
}
.son-nav__list a:hover::after { width: 100%; }

.son-header__actions { display: flex; align-items: center; gap: 16px; }
.son-nav-toggle {
	display: none;
	background: none; border: none;
	width: 32px; height: 24px;
	flex-direction: column; justify-content: space-between;
	padding: 0;
}
.son-nav-toggle span {
	display: block; height: 2px; width: 100%;
	background: var(--son-ink); border-radius: 2px;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.son-hero {
	position: relative;
	min-height: 640px;
	display: flex;
	align-items: center;
	background-size: cover;
	background-position: center;
	color: var(--son-white);
}
.son-hero__overlay {
	position: absolute; inset: 0;
	background: linear-gradient(115deg, rgba(23,28,31,0.90) 0%, rgba(21,83,119,0.76) 55%, rgba(42,144,202,0.40) 100%);
}
.son-hero__contours {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	z-index: 0;
}
.son-hero__cta-corner {
	position: absolute;
	right: 0;
	bottom: 0;
	z-index: 2;
	display: flex;
	align-items: center;
	justify-content: center;
	min-width: 200px;
	height: 100px;
	padding: 0 32px 0 56px;
	background: var(--son-yellow);
	color: var(--son-ink);
	font-family: var(--son-font-display);
	font-weight: 600;
	font-size: 1.15rem;
	clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
	transition: background-color .2s ease, padding-left .2s ease;
}
.son-hero__cta-corner:hover {
	background: var(--son-yellow-deep);
	padding-left: 64px;
}
.son-hero__inner {
	position: relative;
	z-index: 1;
	max-width: 720px;
	padding-top: 90px;
	padding-bottom: 90px;
}
.son-hero__title {
	font-size: clamp(2.2rem, 4.5vw, 3.6rem);
	color: var(--son-white);
}
.son-hero__subtitle {
	font-size: 1.1rem;
	color: var(--son-light-text);
	max-width: 560px;
	margin-bottom: 2em;
}
.son-hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 720px) {
	.son-hero__cta-corner {
		position: static;
		width: 100%;
		min-width: 0;
		clip-path: none;
		border-radius: var(--son-radius);
		padding: 16px;
		margin-top: 24px;
	}
}

/* ==========================================================================
   TICKER
   ========================================================================== */
.son-ticker {
	background: var(--son-ink);
	border-top: 1px solid var(--son-line-light);
	border-bottom: 1px solid var(--son-line-light);
	overflow: hidden;
	padding: 18px 0;
}
.son-ticker__track {
	display: flex;
	gap: 24px;
	width: max-content;
	animation: son-marquee 90s linear infinite;
	font-family: var(--son-font-mono);
	font-size: 0.95rem;
	letter-spacing: 0.08em;
	color: var(--son-light-text);
	white-space: nowrap;
}
.son-ticker__dot { color: var(--son-yellow); }
@keyframes son-marquee {
	from { transform: translateX(0); }
	to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
	.son-ticker__track { animation: none; }
}

/* ==========================================================================
   DOBLE IDENTIDAD (Campo / Laboratorio)
   ========================================================================== */
.son-dual {
	display: grid;
	grid-template-columns: 1fr 1fr;
}
.son-dual__item {
	position: relative;
	min-height: 380px;
}
.son-dual__item img {
	width: 100%; height: 100%;
	object-fit: cover;
	position: absolute; inset: 0;
}
.son-dual__caption {
	position: relative;
	z-index: 1;
	height: 100%;
	padding: 40px;
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	background: linear-gradient(0deg, rgba(23,28,31,0.85) 0%, rgba(23,28,31,0.15) 60%, transparent 100%);
	color: var(--son-white);
}
.son-dual__caption h3 { color: var(--son-white); font-size: 1.4rem; }
.son-dual__caption p { color: var(--son-light-text); margin-bottom: 0; max-width: 380px; }

/* ==========================================================================
   SERVICIOS
   ========================================================================== */
.son-services { padding: 100px 0; background: var(--son-white); }
.son-section-head { max-width: 640px; margin-bottom: 56px; }
.son-section-head h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }

.son-section-head--split {
	max-width: none;
	display: grid;
	grid-template-columns: 1.3fr 1fr;
	gap: 48px;
	align-items: end;
}
.son-section-head__text p { color: #4b545a; max-width: 460px; }
.son-section-head__image {
	position: relative;
	border-radius: var(--son-radius);
	overflow: hidden;
	aspect-ratio: 16/10;
}
.son-section-head__image::after {
	content: "";
	position: absolute;
	right: 0; bottom: 0;
	width: 90px; height: 60px;
	background: var(--son-yellow);
	clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
}
.son-section-head__image img {
	width: 100%; height: 100%;
	object-fit: cover;
}

.son-services__grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
}

.son-flip-card {
	display: block;
	perspective: 1200px;
	height: 280px;
}
.son-flip-card__inner {
	position: relative;
	width: 100%;
	height: 100%;
	text-align: left;
	transition: transform .6s cubic-bezier(.4,.2,.2,1);
	transform-style: preserve-3d;
}
.son-flip-card:hover .son-flip-card__inner {
	transform: rotateY(180deg);
}

.son-flip-card__front,
.son-flip-card__back {
	position: absolute;
	inset: 0;
	backface-visibility: hidden;
	border: 1px solid var(--son-line);
	border-radius: var(--son-radius);
	overflow: hidden;
}
.son-flip-card__front {
	background: var(--son-white);
	padding: 28px;
	display: flex;
	flex-direction: column;
	transition: border-color .2s ease;
}
.son-flip-card:hover .son-flip-card__front { border-color: var(--son-yellow); }

.son-service-card__icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: var(--son-blue-pale);
	color: var(--son-blue-deep);
	margin-bottom: 18px;
	flex-shrink: 0;
}
.son-service-card__icon svg { width: 22px; height: 22px; }
.son-flip-card__front h3 { font-size: 1.05rem; margin-bottom: 0.5em; }
.son-flip-card__front p { font-size: 0.92rem; color: #4b545a; margin-bottom: 0; }

.son-flip-card__back {
	transform: rotateY(180deg);
	background-size: cover;
	background-position: center;
}
.son-flip-card__back-overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(23,28,31,0.35) 0%, rgba(23,28,31,0.9) 100%);
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	padding: 24px;
}
.son-flip-card__back-overlay h3 { color: var(--son-white); font-size: 1.05rem; margin-bottom: 0.6em; }
.son-flip-card__link {
	color: var(--son-yellow);
	font-family: var(--son-font-mono);
	font-size: 0.85rem;
	font-weight: 500;
}

/* En móvil no se voltea: se muestra solo el frente, ya que la tarjeta entera sigue siendo un enlace */
@media (max-width: 720px) {
	.son-flip-card { height: auto; perspective: none; }
	.son-flip-card__inner { transform: none !important; transition: none; }
	.son-flip-card__front { position: relative; }
	.son-flip-card__back { display: none; }
}

/* ==========================================================================
   PROCESO
   ========================================================================== */
.son-process { padding: 100px 0; background: var(--son-mist); }
.son-process__grid {
	display: grid;
	grid-template-columns: 1.2fr 0.8fr;
	gap: 64px;
	align-items: start;
}
.son-process__steps h2 { font-size: clamp(1.8rem, 3vw, 2.2rem); max-width: 480px; }
.son-process__list { margin-top: 40px; }
.son-process__list li {
	display: flex;
	gap: 24px;
	padding: 24px 0;
	border-top: 1px solid var(--son-line);
}
.son-process__list li:last-child { border-bottom: 1px solid var(--son-line); }
.son-process__num {
	font-family: var(--son-font-mono);
	font-size: 1rem;
	color: var(--son-blue);
	min-width: 36px;
}
.son-process__list h3 { font-size: 1.1rem; margin-bottom: 0.3em; }
.son-process__list p { font-size: 0.92rem; color: #4b545a; margin-bottom: 0; }
.son-process__image img {
	border-radius: var(--son-radius);
	width: 100%;
	height: 100%;
	object-fit: cover;
	min-height: 420px;
}

/* ==========================================================================
   CTA BANDA
   ========================================================================== */
.son-cta-band { background: var(--son-blue-deep); padding: 64px 0; }
.son-cta-band__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	flex-wrap: wrap;
}
.son-cta-band h2 { color: var(--son-white); margin: 0; font-size: clamp(1.5rem, 2.5vw, 2rem); }

/* ==========================================================================
   CONTACTO
   ========================================================================== */
.son-contact { padding: 100px 0; }
.son-contact__grid {
	display: grid;
	grid-template-columns: 0.9fr 1.1fr;
	gap: 64px;
}
.son-contact__info h2 { font-size: clamp(1.8rem, 3vw, 2.2rem); }
.son-contact__details { margin-top: 32px; }
.son-contact__details li {
	padding: 14px 0;
	border-top: 1px solid var(--son-line);
	font-size: 0.95rem;
}
.son-contact__details li:last-child { border-bottom: 1px solid var(--son-line); }

.son-form { background: var(--son-blue-pale); padding: 40px; border-radius: var(--son-radius); }
.son-form__row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}
.son-form__field { margin-bottom: 20px; }
.son-form__field label {
	display: block;
	font-size: 0.85rem;
	font-weight: 500;
	margin-bottom: 6px;
}
.son-form__field input,
.son-form__field select,
.son-form__field textarea {
	width: 100%;
	padding: 12px 14px;
	border: 1px solid var(--son-line);
	border-radius: 4px;
	font-family: inherit;
	font-size: 0.95rem;
	background: var(--son-white);
}
.son-form__field input:focus,
.son-form__field select:focus,
.son-form__field textarea:focus {
	border-color: var(--son-blue);
}
.son-form__radio-group {
	border: none;
	padding: 0;
	margin: 0 0 20px;
	display: flex;
	gap: 24px;
	align-items: center;
}
.son-form__radio-group legend {
	font-size: 0.85rem;
	font-weight: 500;
	margin-bottom: 10px;
	width: 100%;
}
.son-form__radio-group label {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 0.9rem;
}
.son-form__submit { width: 100%; margin-top: 8px; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.son-footer { background: var(--son-ink); color: var(--son-light-text); padding: 72px 0 0; }
.son-footer__logo-img { height: 52px; width: auto; }
.son-footer__grid {
	display: grid;
	grid-template-columns: 1.4fr 1fr 1fr 1fr;
	gap: 40px;
	padding-bottom: 48px;
}
.son-footer__tagline { font-size: 0.9rem; margin-top: 16px; max-width: 260px; color: #9aa5aa; }
.son-footer__col .son-eyebrow { color: var(--son-yellow); }
.son-footer__list li { padding: 6px 0; }
.son-footer__list a:hover { color: var(--son-white); }
.son-footer__bottom {
	border-top: 1px solid var(--son-line-light);
	padding: 24px;
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 12px;
	font-size: 0.82rem;
	color: #9aa5aa;
}
.son-footer__bottom a { color: var(--son-light-text); }
.son-footer__bottom a:hover { color: var(--son-white); }

/* ==========================================================================
   REVEAL ON SCROLL
   ========================================================================== */
.son-reveal {
	opacity: 0;
	transform: translateY(16px);
	transition: opacity .6s ease, transform .6s ease;
}
.son-reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
	.son-reveal { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 960px) {
	.son-services__grid { grid-template-columns: repeat(2, 1fr); }
	.son-process__grid { grid-template-columns: 1fr; }
	.son-process__image img { min-height: 280px; }
	.son-contact__grid { grid-template-columns: 1fr; }
	.son-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
	.son-nav { position: fixed; top: 65px; left: 0; right: 0; background: var(--son-white);
		border-bottom: 1px solid var(--son-line); padding: 16px 24px;
		display: none; }
	.son-nav.is-open { display: block; }
	.son-nav__list { flex-direction: column; gap: 4px; }
	.son-nav__list a { display: block; padding: 10px 0; }
	.son-nav-toggle { display: flex; }
	.son-header__actions .son-btn--sm { display: none; }

	.son-dual { grid-template-columns: 1fr; }
	.son-services__grid { grid-template-columns: 1fr; }
	.son-form__row { grid-template-columns: 1fr; }
	.son-footer__grid { grid-template-columns: 1fr; }
	.son-cta-band__inner { flex-direction: column; align-items: flex-start; }
}