/* ==========================================================================
   SilenVet — Estilos principales
   One-page corporativa | Anestesia Veterinaria Especializada
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fuentes locales
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Manrope";
  src: url("../fonts/Manrope-VariableFont_wght.ttf") format("truetype");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter-VariableFont_opsz,wght.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter-Italic-VariableFont_opsz,wght.ttf") format("truetype");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. Variables CSS (identidad corporativa)
   -------------------------------------------------------------------------- */
:root {
  /* Colores de marca extraídos del manual y dossier */
  --color-primary: #006075;
  --color-primary-dark: #003e4d;
  --color-accent: #70c4d3;
  --color-accent-light: #78b6bd;
  --color-sidebar: #165360;

  /* Neutros */
  --color-white: #ffffff;
  --color-bg-soft: #f5f8f9;
  --color-bg-muted: #e8eef0;
  --color-bg-highlight: #e1e8eb;
  --color-text: #555555;
  --color-text-dark: #333333;
  --color-border: #dde4e7;

  /* Tipografía */
  --font-heading: "Manrope", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  /* Espaciado y layout */
  --container-max: 1280px;
  --section-padding-y: clamp(4rem, 8vw, 7rem);
  --header-height: 80px;

  /* Transiciones */
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Sombras */
  --shadow-soft: 0 4px 24px rgba(0, 96, 117, 0.08);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
}

/* --------------------------------------------------------------------------
   3. Reset y base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* Enlace skip para accesibilidad */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 0 0 4px 4px;
  font-weight: 600;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Utilidades tipográficas */
.text-accent {
  color: var(--color-accent-light);
  font-weight: 400;
}

.text-primary {
  color: var(--color-primary);
  font-weight: 700;
}

/* Contenedor principal */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

/* Encabezados de sección reutilizables */
.section-header {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-title .text-accent {
  font-weight: 400;
}

.section-title .text-primary {
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   4. Cabecera y navegación
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-header__logo img {
  width: clamp(200px, 24vw, 260px);
  height: auto;
}

/* Botón menú móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Navegación principal */
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}

.site-nav__link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-base);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__link.is-active {
  color: var(--color-accent-light);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after,
.site-nav__link.is-active::after {
  width: 100%;
}

.site-nav__link--cta {
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 4px;
  transition: background var(--transition-base), transform var(--transition-base);
}

.site-nav__link--cta::after {
  display: none;
}

.site-nav__link--cta:hover,
.site-nav__link--cta:focus-visible {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   5. Hero — Portada
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-height) + 2rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  background: var(--color-white);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: clamp(2rem, 5vw, 4rem);
}

.hero__content {
  max-width: 560px;
}

.hero__intro {
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.hero__tagline {
  font-family: var(--font-heading);
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2rem;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  font-family: var(--font-heading);
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  font-weight: 500;
  color: var(--color-primary);
}

.hero__tags-sep {
  color: var(--color-accent-light);
}

.hero__title-wrap {
  position: relative;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.hero__title-line {
  display: block;
  width: 60px;
  height: 2px;
  background: var(--color-accent-light);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero__title span {
  display: block;
}

.hero__quote {
  margin-bottom: clamp(2rem, 4vw, 3rem);
  padding: 0;
  border: none;
}

.hero__quote p {
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-text);
}

.hero__author-name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent-light);
  margin-bottom: 0.5rem;
}

.hero__author-creds {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.8;
  font-weight: 500;
}

.hero__author-creds li::before {
  content: none;
}

/* Fotografía con degradado lateral */
.hero__media {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero__media img {
  width: 100%;
  max-width: 520px;
  height: auto;
  object-fit: cover;
  object-position: center top;
  /* Degradado hacia blanco en el borde izquierdo (efecto dossier) */
  mask-image: linear-gradient(to right, transparent 0%, black 18%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 18%);
}

/* --------------------------------------------------------------------------
   6. Quién es SilenVet
   -------------------------------------------------------------------------- */
.about {
  background: var(--color-white);
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 30%);
}

.about__main {
  padding: var(--section-padding-y) clamp(1.25rem, 4vw, 3rem);
  padding-right: clamp(2rem, 5vw, 4rem);
}

.about__intro {
  max-width: 720px;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.about__intro p {
  margin-bottom: 1.25rem;
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.75;
}

.about__intro p:last-child {
  margin-bottom: 0;
}

/* Cuadrícula de valores */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.value-card__icon-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.value-card__icon-wrap img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.value-card__line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-primary);
  margin-top: 0.75rem;
}

.value-card__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.625rem;
}

.value-card__text {
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* Timeline — Cómo trabajamos */
.process__title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.process__timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  position: relative;
}

/* Línea conectora horizontal (centrada respecto a los iconos redondos) */
.process__timeline::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--color-primary);
  z-index: 0;
}

.process__step {
  position: relative;
  z-index: 1;
  text-align: center;
}

/* Los iconos del proceso ya son circulares en el PNG recortado */
.process__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.process__icon img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.process__step-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.375rem;
}

.process__content p {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--color-text);
  max-width: 180px;
  margin-inline: auto;
}

/* Barra lateral con cita */
.about__sidebar {
  background: var(--color-bg-soft);
  padding: var(--section-padding-y) clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.about__quote {
  position: relative;
  padding: 0;
  border: none;
}

.about__quote p {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  line-height: 1.45;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}

.about__quote-mark {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 8vw, 6rem);
  line-height: 0.8;
  color: var(--color-primary);
  opacity: 0.25;
  position: absolute;
}

.about__quote-mark--open {
  top: -3rem;
  left: -0.5rem;
}

.about__quote-mark--close {
  bottom: -5rem;
  right: 0;
}

/* --------------------------------------------------------------------------
   7. Servicios
   -------------------------------------------------------------------------- */
.services {
  position: relative;
  padding: var(--section-padding-y) 0;
  background: var(--color-white);
  padding-bottom: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.service-card {
  padding: clamp(1.5rem, 3vw, 2rem) clamp(1rem, 2vw, 1.25rem);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-align: center;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
  border-color: var(--color-accent-light);
}

.service-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.25rem;
  object-fit: contain;
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.service-card__text {
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Beneficios */
.benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.benefits__title {
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 1.5rem;
}

.benefits__title .text-accent {
  font-weight: 400;
}

.benefits__column--highlight {
  background: var(--color-bg-highlight);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-radius: 10px;
}

.benefits__list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.875rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.benefits__list li:last-child {
  margin-bottom: 0;
}

/* Checkmarks personalizados */
.benefits__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 14px;
  height: 14px;
  background-size: contain;
  background-repeat: no-repeat;
}

.benefits__list--accent li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2378B6BD'%3E%3Cpath d='M13.5 2.5L6 10l-3.5-3.5L1 8l5 5 8.5-8.5z'/%3E%3C/svg%3E");
}

.benefits__list--primary li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23003E4D'%3E%3Cpath d='M13.5 2.5L6 10l-3.5-3.5L1 8l5 5 8.5-8.5z'/%3E%3C/svg%3E");
}

/* Línea separadora a todo el ancho entre servicios y contacto */
.services__footer-line {
  height: 3px;
  background: var(--color-primary-dark);
  margin-top: clamp(3rem, 6vw, 5rem);
}

/* --------------------------------------------------------------------------
   8. Contacto
   -------------------------------------------------------------------------- */
.contact {
  background: var(--color-white);
  padding-top: 0;
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 28%);
  min-height: 600px;
}

.contact__main {
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Degradado blanco para legibilidad del texto sobre la fotografía */
.contact__main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    115deg,
    rgba(255, 255, 255, 0.98) 0%,
    rgba(255, 255, 255, 0.92) 22%,
    rgba(255, 255, 255, 0.72) 42%,
    rgba(255, 255, 255, 0.35) 62%,
    rgba(255, 255, 255, 0) 80%
  );
}

.contact__image-wrap {
  flex: 1;
  min-height: 400px;
  overflow: hidden;
}

.contact__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.contact__content {
  position: absolute;
  top: clamp(2rem, 5vw, 4rem);
  left: clamp(1.25rem, 4vw, 3rem);
  max-width: 520px;
  z-index: 2;
}

.contact__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.contact__title span {
  display: block;
}

.contact__text {
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 460px;
}

.contact__cta {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.6;
}

.contact__cta-highlight {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25em;
}

/* Sidebar de contacto */
.contact__sidebar {
  background: var(--color-sidebar);
  color: var(--color-white);
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1.5rem, 3vw, 2.5rem);
  padding-top: 0;
  display: flex;
  flex-direction: column;
  position: relative;
}

.contact__brand {
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.contact__brand img {
  width: clamp(200px, 24vw, 260px);
  margin-bottom: 0.75rem;
}

.contact__brand-tagline {
  font-size: 0.875rem;
  font-weight: 300;
  opacity: 0.9;
  letter-spacing: 0.02em;
}

.contact__divider {
  border: none;
  height: 1px;
  background: var(--color-accent);
  margin: clamp(1.5rem, 3vw, 2rem) 0;
  opacity: 0.6;
}

.contact__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact__item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9375rem;
  line-height: 1.4;
  transition: opacity var(--transition-base);
}

.contact__item img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

a.contact__item:hover,
a.contact__item:focus-visible {
  opacity: 0.85;
}

.contact__item--static {
  cursor: default;
}

/* --------------------------------------------------------------------------
   9. Pie de página
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 1.5rem 0;
  font-size: 0.875rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.site-footer__tagline {
  font-size: 0.8125rem;
  opacity: 0.7;
}