/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== Variables ===== */
:root {
  --color-bg:          #1a1a1a;
  --color-bg-alt:      #242424;
  --color-navbar:      #3f3f3f;
  --color-accent:      #f2cc20;
  --color-accent-dark: #d4a800;
  --color-secondary:   #646464;
  --color-text:        #ffffff;
  --color-text-muted:  #b0b0b0;
  --color-border:      rgba(255, 255, 255, 0.10);
  --font-main:         'Inter', 'Segoe UI', Arial, sans-serif;
  --navbar-height:     68px;
  --radius:            12px;
  --transition:        0.25s ease;
  --shadow:            0 4px 24px rgba(0, 0, 0, 0.45);
}

/* ===== Base ===== */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== Shared helpers ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section__title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  position: relative;
}

.section__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 14px auto 0;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* ===== Button ===== */
.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  border-radius: 8px;
  padding: 14px 32px;
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background-color: var(--color-accent);
  color: #1a1a1a;
  border: none;
  box-shadow: 0 4px 18px rgba(242, 204, 32, 0.35);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(242, 204, 32, 0.45);
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background-color: var(--color-navbar);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
  z-index: 1000;
}

.navbar__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo { text-decoration: none; }

.navbar__logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.navbar__list {
  display: flex;
  list-style: none;
  gap: 4px;
}

.navbar__link {
  display: block;
  padding: 8px 16px;
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 6px;
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--color-accent);
  background-color: rgba(242, 204, 32, 0.10);
}

.navbar__link.active { color: var(--color-accent); }

/* Navbar socials */
.navbar__socials {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition), background-color var(--transition);
}

.navbar__social-link:hover {
  color: var(--color-accent);
  background-color: rgba(242, 204, 32, 0.10);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background-color: rgba(255,255,255,0.08);
  border-radius: 6px;
  padding: 3px;
  flex-shrink: 0;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding: 4px 9px;
  border-radius: 4px;
  transition: color var(--transition), background-color var(--transition);
}

.lang-btn--active {
  background-color: var(--color-accent);
  color: #1a1a1a;
}

.lang-btn:hover:not(.lang-btn--active) { color: var(--color-text); }

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  display: block;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(17, 17, 17, 0.85) 0%,
    rgba(17, 17, 17, 0.70) 30%,
    rgba(17, 17, 17, 0.25) 52%,
    rgba(17, 17, 17, 0.00) 62%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  padding: var(--navbar-height) 0 0 7vw;
  margin-top: calc(var(--navbar-height) * -0.5);
}

.hero__title {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__text {
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  color: #d0d0d0;
  margin-bottom: 36px;
  line-height: 1.72;
  max-width: 480px;
}

/* ===== Objetivos ===== */
.objetivos { background-color: var(--color-bg-alt); }

.objetivos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.objetivo-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.objetivo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(242, 204, 32, 0.30);
  box-shadow: var(--shadow);
}

.objetivo-card__icon {
  width: 64px;
  height: 64px;
  background: rgba(242, 204, 32, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.objetivo-card__icon i {
  font-size: 1.6rem;
  color: var(--color-accent);
}

.objetivo-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.objetivo-card__text {
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===== Servicios ===== */
.servicios { background-color: var(--color-bg); }

.servicios__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* Último elemento centrado si es impar */
.servicios__grid > .servicio-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  max-width: 560px;
  margin: 0 auto;
  width: 100%;
}

.servicio-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.servicio-card:hover {
  transform: translateY(-3px);
  border-color: rgba(242, 204, 32, 0.28);
  box-shadow: var(--shadow);
}

.servicio-card__icon {
  width: 48px;
  height: 48px;
  background: rgba(242, 204, 32, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.servicio-card__icon i {
  font-size: 1.3rem;
  color: var(--color-accent);
}

.servicio-card__title {
  font-size: 1.05rem;
  font-weight: 700;
}

.servicio-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ===== Clientes ===== */
.clientes { background-color: #f0f0f0; }
.clientes .section__title { color: #1a1a1a; }

/* ===== Hero eyebrow & accent ===== */
.hero__eyebrow {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero__title--accent {
  color: var(--color-accent);
}

/* ===== Modelos de robots ===== */
.modelos {
  background-color: #3f3f3f;
  padding: 64px 0 56px;
}

.modelos__inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}


.modelos__track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.modelo-item {
  background-color: rgba(0,0,0,0.28);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 3px solid var(--color-accent);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.modelo-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.45);
}

.modelo-item__img-wrap {
  width: 100%;
  padding: 24px 16px 12px;
  display: flex;
  justify-content: center;
}

.modelo-item__img {
  height: 160px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.55));
  transition: transform var(--transition);
}

.modelo-item:hover .modelo-item__img {
  transform: scale(1.05);
}

.modelo-item__info {
  width: 100%;
  padding: 12px 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background-color: rgba(0,0,0,0.20);
}

.modelo-item__name {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 12px;
}

.modelo-item__specs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modelo-item__spec {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding-top: 6px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.modelo-item__spec-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.modelo-item__spec-value {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: right;
}

/* ===== Integradores oficiales ===== */
.integradores {
  background-color: #f5f5f5;
  padding: 48px 0;
}

.integradores .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.integradores__label {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-secondary);
}

.integradores__grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 48px;
}

.integrador-card {
  display: flex;
  align-items: center;
  justify-content: center;
}

.integrador-card__logo {
  height: 72px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.integrador-card__name {
  display: none;
  font-size: 1rem;
  font-weight: 700;
  color: #333333;
  letter-spacing: 0.04em;
}

/* ===== Clientes ===== */
.clientes__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  align-items: center;
}

.cliente-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
}

.cliente-item__logo {
  max-width: 100%;
  max-height: 64px;
  width: auto;
  object-fit: contain;
}

/* ===== Contacto ===== */
.contacto { background-color: var(--color-bg); }

.contacto__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contacto__subtitle {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-text);
}

.contacto__address {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.contacto__address i {
  color: var(--color-accent);
  margin-top: 3px;
  flex-shrink: 0;
}

.contacto__map {
  width: 100%;
  height: 380px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

/* Form */
.contacto__form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.form-input {
  background-color: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.93rem;
  transition: border-color var(--transition), background-color var(--transition);
  outline: none;
}

.form-input::placeholder { color: rgba(255,255,255,0.25); }

.form-input:focus {
  border-color: var(--color-accent);
  background-color: rgba(255,255,255,0.09);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.btn--full { width: 100%; text-align: center; }

.btn--outline-accent {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn--outline-accent:hover {
  background-color: var(--color-accent);
  color: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 204, 32, 0.35);
}

.modelos__cta {
  text-align: center;
  margin-top: 48px;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid rgba(255,255,255,0.35);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  background-color: #3f3f3f;
  color: var(--color-text-muted);
}

.footer__top {
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
}

.footer__logo-img {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 20px;
}

.footer__desc {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 280px;
}

.footer__col-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.footer__nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer__link:hover { color: var(--color-text); }

.footer__contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer__contact-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.88rem;
  line-height: 1.5;
}

.footer__contact-list i {
  color: var(--color-accent);
  margin-top: 3px;
  flex-shrink: 0;
  width: 14px;
}

.footer__bottom {
  padding: 20px 0;
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer__copy {
  font-size: 0.82rem;
  color: #666666;
}

.footer__dev {
  font-size: 0.82rem;
  color: #666666;
}

.footer__socials {
  display: flex;
  gap: 12px;
}

.footer__social {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  transition: border-color var(--transition), color var(--transition), background-color var(--transition);
}

.footer__social:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(242, 204, 32, 0.08);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .objetivos__grid { grid-template-columns: 1fr; gap: 20px; }
  .objetivo-card { padding: 32px 24px; }
}

@media (max-width: 768px) {
  .navbar__toggle { display: flex; }

  .navbar__menu {
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    width: 100%;
    background-color: var(--color-navbar);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding var(--transition);
  }

  .navbar__menu.open {
    max-height: 320px;
    padding: 12px 0;
    border-top: 1px solid var(--color-border);
  }

  .navbar__list { flex-direction: column; gap: 2px; padding: 0 16px; }
  .navbar__link { padding: 12px 16px; font-size: 0.97rem; }

  .servicios__grid { grid-template-columns: 1fr; }

  .servicios__grid > .servicio-card:last-child:nth-child(odd) {
    grid-column: auto;
    max-width: 100%;
  }

  .section { padding: 64px 0; }
}

@media (max-width: 1100px) {
  .modelos__track { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .contacto__grid { grid-template-columns: 1fr; }
  .contacto__map { height: 280px; }
}

@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .modelos__track { grid-template-columns: repeat(2, 1fr); }
  .clientes__grid { grid-template-columns: repeat(2, 1fr); }
  .integradores__grid { gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 1.8rem; }
  .btn { padding: 12px 24px; }
  .clientes__grid { grid-template-columns: repeat(2, 1fr); }
}