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

:root {
  --c-dark:    #0B1120;
  --c-mid:     #111B2E;
  --c-gray:    #4A6080;
  --c-stone:   #8BA8C8;
  --c-bone:    #E8F0FA;
  --c-yellow:  #3B82F6;
  --c-white:   #FFFFFF;

  --f-display: 'Bebas Neue', sans-serif;
  --f-body:    'Inter', sans-serif;

  --radius: 4px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--f-body);
  background: var(--c-dark);
  color: var(--c-bone);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent-yellow { color: var(--c-yellow); }

/* ===== TYPOGRAPHY ===== */
.section-eyebrow {
  font-family: var(--f-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-yellow);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--c-white);
}

.section-header { margin-bottom: 48px; }
.section-header--light .section-title { color: #0B1120; }
.section-header--light .section-eyebrow { color: var(--c-gray); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--c-yellow);
  color: #0B1120;
  border-color: var(--c-yellow);
}
.btn--primary:hover { background: #2563EB; border-color: #2563EB; }

.btn--ghost {
  background: transparent;
  color: var(--c-bone);
  border-color: var(--c-stone);
}
.btn--ghost:hover { border-color: var(--c-white); color: var(--c-white); }

.btn--full { width: 100%; justify-content: center; }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: rgba(11,17,32,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition);
}

.nav--scrolled { background: rgba(11,17,32,0.99); }

.nav__logo {
  font-family: var(--f-display);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
  color: var(--c-white);
}
.nav__logo span { color: var(--c-yellow); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-stone);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--c-white); }

.nav__cta {
  background: var(--c-yellow) !important;
  color: var(--c-dark) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 600 !important;
}
.nav__cta:hover { background: #2563EB !important; }

.nav__redes-link {
  display: inline-flex !important;
  align-items: center;
  gap: 5px;
  background: rgba(255,255,255,0.06) !important;
  color: var(--c-bone) !important;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.12);
  font-weight: 500 !important;
  transition: background var(--transition), border-color var(--transition) !important;
}
.nav__redes-link:hover {
  background: rgba(255,255,255,0.1) !important;
  border-color: rgba(255,255,255,0.25) !important;
  color: var(--c-white) !important;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #EEF4FC;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 40px 60px;
  overflow: hidden;
  background: var(--c-dark);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(100,160,255,0.04) 60px,
      rgba(100,160,255,0.04) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(100,160,255,0.04) 60px,
      rgba(100,160,255,0.04) 61px
    );
  pointer-events: none;
}

.hero__bg-text {
  position: absolute;
  bottom: -2vw;
  right: -2vw;
  font-family: var(--f-display);
  font-size: clamp(120px, 18vw, 260px);
  line-height: 0.85;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(100,160,255,0.1);
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-yellow);
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--f-display);
  font-size: clamp(4rem, 9vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: 0.01em;
  color: var(--c-white);
  margin-bottom: 24px;
}

.hero__accent {
  color: var(--c-yellow);
  display: block;
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--c-stone);
  line-height: 1.65;
  margin-bottom: 36px;
  font-weight: 300;
}

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

.hero__badge {
  position: absolute;
  bottom: 48px;
  right: 48px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--c-yellow);
  color: #0B1120;
  border-radius: 50%;
  width: 110px;
  height: 110px;
  justify-content: center;
  text-align: center;
  box-shadow: 0 8px 32px rgba(59,130,246,0.35);
}

.hero__badge-num {
  font-family: var(--f-display);
  font-size: 2.2rem;
  line-height: 1;
  letter-spacing: 0.02em;
}

.hero__badge-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.3;
}

/* ===== SERVICIOS ===== */
.servicios {
  padding: 96px 0;
  background: #EEF4FC;
}

.servicios__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  grid-auto-rows: auto;
}

.servicio-card {
  background: #FFFFFF;
  padding: 36px 28px;
  transition: transform var(--transition);
}
.servicio-card:hover { transform: translateY(-4px); }

.servicio-card--highlight {
  background: var(--c-dark);
  color: var(--c-bone);
}

.servicio-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.servicio-card h3 {
  font-family: var(--f-display);
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: #0B1120;
  margin-bottom: 12px;
  line-height: 1.1;
}

.servicio-card--highlight h3 { color: var(--c-yellow); }

.servicio-card p {
  font-size: 0.875rem;
  color: var(--c-gray);
  line-height: 1.6;
}

.servicio-card--highlight p { color: var(--c-stone); }

/* ===== OBRAS ===== */
.obras {
  padding: 96px 0;
  background: #EEF4FC;
}

.obras__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 260px 260px;
  gap: 3px;
}

.obra-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.obra-item--tall { grid-row: 1 / 3; }
.obra-item--wide { grid-column: 2 / 4; }

.obra-item__img {
  width: 100%;
  height: 100%;
  transition: transform 0.4s ease;
  background-size: cover;
  background-position: center;
}

/* Placeholder textures */
.obra-item:nth-child(1) .obra-item__img { background: linear-gradient(135deg, #0D1E3A 0%, #1A3A6B 100%); }
.obra-item:nth-child(2) .obra-item__img { background: linear-gradient(135deg, #112244 0%, #1E4080 100%); }
.obra-item:nth-child(3) .obra-item__img { background: linear-gradient(135deg, #0F1E3C 0%, #1A3366 100%); }
.obra-item:nth-child(4) .obra-item__img { background: linear-gradient(135deg, #132040 0%, #1E3D77 100%); }

.obra-item:hover .obra-item__img { transform: scale(1.04); }

.obra-item__label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  transform: translateY(4px);
  transition: transform var(--transition);
}

.obra-item:hover .obra-item__label { transform: translateY(0); }

.obra-item__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--c-yellow);
  color: #0B1120;
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 4px;
}

.obra-item__label p {
  font-size: 0.85rem;
  color: var(--c-white);
  font-weight: 500;
}

/* ===== NOSOTROS ===== */
.nosotros {
  padding: 96px 0;
  background: var(--c-mid);
}

.nosotros__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  align-items: center;
}

.nosotros__text p {
  font-size: 0.95rem;
  color: var(--c-stone);
  line-height: 1.7;
  margin: 24px 0;
}

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

.nosotros__lista li {
  font-size: 0.875rem;
  color: var(--c-bone);
  font-weight: 500;
}

.nosotros__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}

.stat-box {
  background: rgba(59,130,246,0.06);
  border: 1px solid rgba(59,130,246,0.15);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-box--accent {
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

.stat-box__num {
  font-family: var(--f-display);
  font-size: 2.8rem;
  line-height: 1;
  color: var(--c-white);
  letter-spacing: 0.02em;
}

.stat-box--accent .stat-box__num { color: #0B1120; }

.stat-box__label {
  font-size: 0.75rem;
  color: var(--c-stone);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.stat-box--accent .stat-box__label { color: #0B1120; font-weight: 600; }

/* ===== TESTIMONIOS ===== */
.testimonios {
  padding: 96px 0;
  background: #EEF4FC;
}

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

.testimonio {
  background: #FFFFFF;
  padding: 36px 28px;
}

.testimonio--highlight {
  background: var(--c-dark);
}

.testimonio__texto {
  font-size: 0.9rem;
  color: var(--c-gray);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 28px;
}

.testimonio--highlight .testimonio__texto { color: var(--c-stone); }

.testimonio__autor {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonio__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-yellow);
  color: #0B1120;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.testimonio__autor strong {
  display: block;
  font-size: 0.875rem;
  color: #0B1120;
  font-weight: 600;
}

.testimonio--highlight .testimonio__autor strong { color: var(--c-bone); }

.testimonio__autor span {
  font-size: 0.75rem;
  color: var(--c-stone);
}

/* ===== CONTACTO ===== */
.contacto {
  padding: 96px 0;
  background: var(--c-dark);
}

.contacto__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contacto__inner--solo {
  grid-template-columns: 1fr;
  max-width: 600px;
}

.contacto__texto p {
  font-size: 0.95rem;
  color: var(--c-stone);
  line-height: 1.7;
  margin: 20px 0 32px;
}

.contacto__datos {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contacto__dato {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--c-stone);
  transition: color var(--transition);
}

.contacto__dato:hover { color: var(--c-white); }

.contacto__dato--wa {
  color: #25D366;
  font-weight: 600;
}

.contacto__dato--wa:hover { color: #1ebe5b; }

/* ===== FORM ===== */
.contacto__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-stone);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--f-body);
  font-size: 0.9rem;
  color: var(--c-bone);
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}

.form-group select option { background: var(--c-dark); }

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--c-gray);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-yellow);
  background: rgba(59,130,246,0.05);
}

.form-group input.error,
.form-group select.error {
  border-color: #e55;
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form__success {
  display: none;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: #25D366;
  padding: 12px;
  background: rgba(37,211,102,0.08);
  border-radius: var(--radius);
  border: 1px solid rgba(37,211,102,0.2);
}

.form__success.visible { display: block; }

/* ===== FOOTER ===== */
.footer {
  background: #060D1A;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 32px 0;
}

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

.footer__logo {
  font-family: var(--f-display);
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  color: var(--c-white);
}
.footer__logo span { color: var(--c-yellow); }

.footer__copy {
  font-size: 0.75rem;
  color: var(--c-gray);
  text-align: center;
}

.footer__wa {
  font-size: 0.8rem;
  font-weight: 600;
  color: #25D366;
  transition: color var(--transition);
}
.footer__wa:hover { color: #1ebe5b; }

/* ===== MOBILE NAV ===== */
.nav__mobile {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--c-dark);
  padding: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 99;
  flex-direction: column;
  gap: 20px;
}

.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-bone);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }

  .hero { padding: 100px 24px 80px; }
  .hero__badge { display: none; }

  .servicios__grid { grid-template-columns: 1fr 1fr; }
  .obras__grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 200px 200px 200px;
  }
  .obra-item--tall { grid-row: auto; }
  .obra-item--wide { grid-column: auto; }

  .nosotros__inner { grid-template-columns: 1fr; gap: 48px; }
  .testimonios__grid { grid-template-columns: 1fr; }
  .contacto__inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 600px) {
  .nav { padding: 0 20px; }
  .servicios__grid { grid-template-columns: 1fr; }
  .obras__grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 220px);
  }
  .nosotros__stats { grid-template-columns: 1fr 1fr; }
  .footer__inner { flex-direction: column; text-align: center; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}

/* ===== REDES SOCIALES ===== */
.redes {
  padding: 96px 0;
  background: var(--c-mid);
}

.redes__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}

.redes__grid--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.red-card {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 40px 36px;
  background: rgba(59,130,246,0.06);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius);
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
  text-decoration: none;
}

.red-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.07);
}

.red-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.red-card__icon svg {
  width: 32px;
  height: 32px;
}

.red-card--yt .red-card__icon {
  background: rgba(255, 0, 0, 0.12);
  color: #FF0000;
}
.red-card--yt:hover { border-color: rgba(255,0,0,0.3); }

.red-card--tt .red-card__icon {
  background: rgba(255, 255, 255, 0.08);
  color: var(--c-white);
}
.red-card--tt:hover { border-color: rgba(255,255,255,0.25); }

.red-card--fb .red-card__icon {
  background: rgba(24, 119, 242, 0.15);
  color: #1877F2;
}
.red-card--fb:hover { border-color: rgba(24,119,242,0.35); }

.red-card__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.red-card__plataforma {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-stone);
}

.red-card__handle {
  font-family: var(--f-display);
  font-size: 1.8rem;
  letter-spacing: 0.02em;
  color: var(--c-white);
  line-height: 1;
}

.red-card__cta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-yellow);
  margin-top: 6px;
  transition: letter-spacing var(--transition);
}

.red-card:hover .red-card__cta { letter-spacing: 0.06em; }

/* Social icon in contacto */
.social-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.contacto__dato--yt { color: #FF0000; font-weight: 600; }
.contacto__dato--yt:hover { color: #cc0000; }

.contacto__dato--tt { color: var(--c-bone); font-weight: 600; }
.contacto__dato--tt:hover { color: var(--c-white); }

/* Footer socials */
.footer__socials {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer__social {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.1);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.footer__social svg { width: 16px; height: 16px; }

.footer__social--yt { color: #FF0000; }
.footer__social--yt:hover { background: rgba(255,0,0,0.12); border-color: rgba(255,0,0,0.3); transform: translateY(-2px); }

.footer__social--tt { color: var(--c-bone); }
.footer__social--tt:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); transform: translateY(-2px); }

.footer__social--fb { color: #1877F2; }
.footer__social--fb:hover { background: rgba(24,119,242,0.12); border-color: rgba(24,119,242,0.3); transform: translateY(-2px); }

.contacto__dato--fb { color: #1877F2; font-weight: 600; }
.contacto__dato--fb:hover { color: #0d63d1; }

@media (max-width: 600px) {
  .redes__grid, .redes__grid--3 { grid-template-columns: 1fr; }
  .red-card { padding: 28px 24px; gap: 20px; }
  .red-card__handle { font-size: 1.4rem; }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeUp 0.55s ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}