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

:root {
  --ice: #e8f4fd;
  --blue-mid: #ffffff;
  --blue-deep: #0d3d6b;
  --blue-dark: #071e38;
  --accent: #00b4e6;
  --accent2: #f0a500;
  --white: #ffffff;
  --gray-light: #f4f7fb;
  --gray: #8a9ab0;
  --text: #1a2535;
  --hero-photo: url('assets/fondo/fondo.jpg');
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Barlow', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: #ffffff;
  backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem;
  height: 68px;
  border-bottom: 1px solid rgba(10, 18, 30, 0.08);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.nav-logo img {
  height: 50px;
  width: auto;
  display: block;
  object-fit: contain;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: #1a2535;
  text-decoration: none;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color .2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  background: var(--accent);
  color: var(--blue-dark) !important;
  padding: .4rem 1.1rem;
  border-radius: 3px;
  font-weight: 700 !important;
}
.nav-cta:hover { background: #ffffff !important; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(10, 18, 30, 0.12);
  background: rgba(255,255,255,0.6);
  color: var(--blue-deep);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background .15s ease, border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.nav-toggle svg { width: 22px; height: 22px; fill: currentColor; }
.nav-toggle:hover { background: rgba(0,180,230,0.08); border-color: rgba(0,180,230,0.35); }
.nav-toggle:active { transform: scale(0.98); }
.nav-toggle:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(0,180,230,0.18); border-color: rgba(0,180,230,0.4); }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 70% 40%, rgba(0,180,230,0.14) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 80%, rgba(26,111,168,0.18) 0%, transparent 55%),
    linear-gradient(155deg, var(--blue-dark) 0%, #0a2d52 50%, #0d3d6b 100%);
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 68px 2rem 0;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--hero-photo);
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  transform: scale(1.03);
  filter: saturate(1.1) contrast(1.05);
  pointer-events: none;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,180,230,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,230,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-badge {
  display: inline-block;
  background: rgba(0,180,230,0.15);
  border: 1px solid rgba(0,180,230,0.4);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: .4rem 1.2rem;
  border-radius: 20px;
  margin-bottom: 1.8rem;
  animation: fadeUp .8s ease both;
}
.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.2rem, 8vw, 7rem);
  line-height: 1;
  color: var(--white);
  letter-spacing: 2px;
  margin-bottom: .6rem;
  animation: fadeUp .9s .1s ease both;
}
.hero-title em { color: var(--accent); font-style: normal; }
.hero-sub {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: rgba(255,255,255,0.6);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  animation: fadeUp 1s .2s ease both;
}
.hero-tagline {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.78);
  font-weight: 300;
  max-width: 560px;
  margin: 0 auto 3rem;
  line-height: 1.7;
  animation: fadeUp 1s .3s ease both;
}
.hero-tagline strong { color: var(--accent2); font-weight: 600; }
.hero-btns {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  animation: fadeUp 1s .4s ease both;
}
.btn-primary {
  background: var(--accent); color: var(--blue-dark);
  padding: .85rem 2.2rem;
  border-radius: 4px;
  font-weight: 700; font-size: .9rem; letter-spacing: 1px; text-transform: uppercase;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 24px rgba(0,180,230,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,180,230,0.5); }
.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.35);
  color: var(--white);
  padding: .85rem 2.2rem;
  border-radius: 4px;
  font-weight: 600; font-size: .9rem; letter-spacing: 1px; text-transform: uppercase;
  text-decoration: none;
  transition: border-color .2s, color .2s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.hero-stats {
  position: absolute;
  bottom: 3rem;
  left: 0;
  right: 0;
  margin: 0 auto;
  transform: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
  row-gap: 1.2rem;
  width: min(960px, calc(100% - 4rem));
  animation: fadeUp 1s .6s ease both;
}
.stat { text-align: center; }
.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.4rem; color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: .72rem; color: rgba(255,255,255,0.5);
  letter-spacing: 2px; text-transform: uppercase; margin-top: .2rem;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── SECTION BASE ── */
section { padding: 6rem 2rem; }
.container { max-width: 1160px; margin: 0 auto; }
.section-label {
  font-size: .72rem; font-weight: 700; letter-spacing: 4px;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: .8rem;
}
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--blue-deep);
  line-height: 1.1;
  margin-bottom: 1rem;
}
.section-title.light { color: var(--white); }
.section-divider {
  width: 50px; height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  margin-bottom: 1.5rem;
}

/* ── NOSOTROS ── */
#nosotros { background: var(--gray-light); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-text p {
  color: #4a5a72;
  line-height: 1.8;
  font-size: 1rem;
  margin-bottom: 1.2rem;
}
.about-quote {
  border-left: 3px solid var(--accent);
  padding-left: 1.2rem;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--blue-mid);
  margin: 2rem 0;
  line-height: 1.7;
}
.about-cards { display: flex; flex-direction: column; gap: 1rem; }
.about-card {
  background: var(--white);
  border-radius: 8px;
  padding: 1.4rem 1.6rem;
  display: flex; align-items: flex-start; gap: 1rem;
  box-shadow: 0 2px 16px rgba(13,61,107,0.07);
  transition: transform .2s, box-shadow .2s;
}
.about-card:hover { transform: translateX(6px); box-shadow: 0 4px 24px rgba(13,61,107,0.12); }
.about-card-icon {
  width: 80px; height: 80px; min-width: 80px;
  background: linear-gradient(135deg, var(--accent), var(--blue-mid));
  border-radius: 20px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.about-card-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.about-card h4 { font-weight: 700; font-size: .9rem; color: var(--blue-deep); margin-bottom: .2rem; }
.about-card p { font-size: .82rem; color: var(--gray); line-height: 1.5; margin: 0; }

/* ── SERVICIOS ── */
#servicios {
  background: linear-gradient(155deg, var(--blue-dark) 0%, #0a2d52 100%);
}
.services-intro { max-width: 600px; margin-bottom: 4rem; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,180,230,0.15);
  border-radius: 10px;
  padding: 2rem;
  transition: background .3s, border-color .3s, transform .2s;
  cursor: default;
}
.service-card:hover {
  background: rgba(0,180,230,0.1);
  border-color: rgba(0,180,230,0.4);
  transform: translateY(-4px);
}
.service-icon { font-size: 2rem; margin-bottom: 1rem; }
.service-icon img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}
.service-card h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.2rem; font-weight: 700; letter-spacing: .5px;
  color: var(--white); margin-bottom: .6rem;
}
.service-card p { font-size: .85rem; color: rgba(255,255,255,0.55); line-height: 1.6; }
.service-items {
  margin-top: .8rem;
  display: flex; flex-wrap: wrap; gap: .4rem;
}
.service-tag {
  background: rgba(0,180,230,0.15);
  color: var(--accent);
  font-size: .7rem; font-weight: 600; letter-spacing: 1px;
  padding: .2rem .6rem;
  border-radius: 20px;
}

/* ── PROYECTOS ── */
#proyectos { background: var(--white); }
.projects-tabs {
  display: flex; gap: .5rem; margin-bottom: 3rem; flex-wrap: wrap;
}
.tab-btn {
  background: var(--gray-light);
  border: none; cursor: pointer;
  padding: .55rem 1.3rem;
  border-radius: 4px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .85rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--gray);
  transition: background .2s, color .2s;
}
.tab-btn.active, .tab-btn:hover {
  background: var(--blue-deep);
  color: var(--white);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.project-card {
  background: var(--gray-light);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(13,61,107,0.08);
  transition: transform .2s, box-shadow .2s;
}
.project-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(13,61,107,0.12); }
.project-header {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-mid));
  padding: 1.4rem 1.6rem;
  display: flex; align-items: center; justify-content: space-between;
}
.project-dept {
  font-size: .68rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.project-badge {
  background: rgba(0,180,230,0.25);
  color: var(--accent);
  font-size: .65rem; font-weight: 700; padding: .2rem .6rem; border-radius: 20px;
}
.project-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.project-body { padding: 1.4rem 1.6rem; }
.project-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 700; color: var(--blue-deep);
  margin-bottom: .4rem; letter-spacing: .3px;
}
.project-addr { font-size: .78rem; color: var(--gray); margin-bottom: .8rem; }
.project-desc { font-size: .83rem; color: #4a5a72; line-height: 1.6; }

/* ── ALIANZAS ── */
#alianzas { background: var(--gray-light); }
.clients-section { margin-bottom: 3.5rem; }
.clients-section h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 700; letter-spacing: 3px; text-transform: uppercase;
  color: var(--blue-mid); margin-bottom: 1.2rem;
  display: flex; align-items: center; gap: .8rem;
}
.clients-section h3::after {
  content: ''; flex: 1; height: 1px; background: rgba(13,61,107,0.12);
}
.clients-grid {
  display: flex; flex-wrap: wrap; gap: .7rem;
}
.client-chip {
  background: var(--white);
  border: 1px solid rgba(13,61,107,0.1);
  border-radius: 5px;
  padding: .5rem 1.1rem;
  font-size: .82rem; font-weight: 600; color: var(--blue-deep);
  transition: border-color .2s, color .2s, transform .15s;
}
.client-chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }

/* ── ALIANZAS (VISUAL UPGRADE) ── */
#alianzas {
  background:
    radial-gradient(ellipse at 15% 10%, rgba(0,180,230,0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 35%, rgba(13,61,107,0.08) 0%, transparent 60%),
    linear-gradient(180deg, var(--gray-light) 0%, #ffffff 100%);
}

.clients-section {
  margin-bottom: 1.4rem;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(13,61,107,0.10);
  border-radius: 14px;
  padding: 1.4rem 1.6rem 1.6rem;
  box-shadow: 0 10px 28px rgba(13,61,107,0.08);
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.clients-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,180,230,0.14), transparent 35%, transparent 65%, rgba(240,165,0,0.10));
  opacity: .40;
  pointer-events: none;
}
.clients-section:hover {
  transform: translateY(-2px);
  border-color: rgba(0,180,230,0.25);
  box-shadow: 0 14px 34px rgba(13,61,107,0.12);
}
.clients-section:last-child { margin-bottom: 0; }

.clients-section h3 {
  color: var(--blue-deep);
  margin-bottom: 1.05rem;
  position: relative;
  z-index: 1;
}
.clients-grid { position: relative; z-index: 1; gap: .65rem; }

.client-chip {
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(13,61,107,0.12);
  border-radius: 999px;
  padding: .55rem 1.05rem;
  box-shadow: 0 6px 16px rgba(7,30,56,0.06);
  transition: border-color .2s, color .2s, transform .15s, background .2s, box-shadow .2s;
}
.client-chip:hover {
  border-color: rgba(0,180,230,0.55);
  background: rgba(0,180,230,0.08);
  color: var(--blue-mid);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(7,30,56,0.10);
}

/* ── FICHAS TÉCNICAS ── */
#fichas {
  position: relative;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(0,180,230,0.16) 0%, transparent 55%),
    radial-gradient(ellipse at 20% 90%, rgba(26,111,168,0.18) 0%, transparent 60%),
    linear-gradient(155deg, var(--blue-dark) 0%, #0a2d52 52%, #0d3d6b 100%);
  overflow: hidden;
}
#fichas::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/fondos/IMG_6391[1].JPG') center / cover no-repeat;
  opacity: 0.16;
  filter: saturate(1.05) contrast(1.05);
  transform: scale(1.04);
  pointer-events: none;
}
#fichas .container { position: relative; z-index: 1; }
.fichas-sub {
  color: rgba(255,255,255,0.75);
  max-width: 760px;
  line-height: 1.7;
  margin-bottom: 1.4rem;
}
.fichas-filters { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1rem 0 1.35rem; }
.fichas-pill {
  display: inline-flex;
  align-items: center;
  padding: .45rem .75rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(0,180,230,0.18);
  color: rgba(255,255,255,0.85);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.fichas-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}
.fichas-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(0,180,230,0.18);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: .65rem;
  min-height: 100%;
}
.fichas-media {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.05);
}
.fichas-media img { width: 100%; height: 170px; object-fit: cover; display: block; }
.fichas-card h3 {
  color: var(--white);
  font-size: .95rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: .2rem;
}
.fichas-card p { color: rgba(255,255,255,0.75); font-size: .9rem; line-height: 1.55; }
.fichas-actions { margin-top: auto; padding-top: .25rem; }
.fichas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .75rem 1.05rem;
  border-radius: 12px;
  background: rgba(0,180,230,0.16);
  border: 1px solid rgba(0,180,230,0.28);
  color: var(--white);
  font-weight: 900;
  font-size: .78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.fichas-btn:hover {
  background: rgba(0,180,230,0.24);
  border-color: rgba(0,180,230,0.5);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0,0,0,0.22);
}
.fichas-btn:active { transform: translateY(0) scale(0.98); }
.fichas-btn:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(0,180,230,0.22); }
.fichas-note {
  margin-top: 1.1rem;
  color: rgba(255,255,255,0.6);
  font-size: .85rem;
}

/* ── CONTACTO ── */
#contacto {
  background: linear-gradient(155deg, var(--blue-dark) 0%, #0a2d52 100%);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 5rem;
  align-items: start;
}
.contact-info { }
.contact-info p { color: rgba(255,255,255,0.65); font-size: .95rem; line-height: 1.8; margin-bottom: 2.5rem; }
.contact-items { display: flex; flex-direction: column; gap: 1.4rem; }
.contact-item {
  display: flex; align-items: flex-start; gap: 1.1rem;
}
.contact-dot {
  width: 36px; height: 36px; min-width: 36px;
  border-radius: 8px;
  background: rgba(0,180,230,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
.contact-item h4 { font-size: .72rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: .3rem; }
.contact-item p { color: rgba(255,255,255,0.8); font-size: .9rem; margin: 0; line-height: 1.5; }
.contact-side { display: flex; flex-direction: column; gap: 1.2rem; }
.contact-hours {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,180,230,0.15);
  border-radius: 10px;
  padding: 2rem;
}
.contact-hours h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem; color: var(--white); letter-spacing: 1px; margin-bottom: 1.5rem;
}
.hours-row {
  display: flex; justify-content: space-between;
  padding: .7rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: .88rem;
}
.hours-row:last-child { border-bottom: none; }
.hours-day { color: rgba(255,255,255,0.55); font-weight: 500; }
.hours-time { color: var(--white); font-weight: 600; }
.hours-closed { color: var(--gray); }

.contact-map {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,180,230,0.15);
  border-radius: 10px;
  padding: 1.6rem;
}
.contact-map h4 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 1rem;
}
.map-embed {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(0,180,230,0.18);
  background: rgba(255,255,255,0.04);
}
.map-embed iframe {
  width: 100%;
  height: 240px;
  border: 0;
  display: block;
}
.map-link {
  display: inline-flex;
  margin-top: .7rem;
  color: var(--accent);
  text-decoration: none;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.map-link:hover { color: var(--white); }
.social-row { display: flex; gap: .8rem; margin-top: 2rem; flex-wrap: wrap; }
.social-btn {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(0,180,230,0.25);
  color: var(--accent);
  text-decoration: none;
  position: relative;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease, color .15s ease;
}
.social-btn svg { width: 50px; height: 50px; display: block; fill: currentColor; }
.social-btn:hover {
  background: rgba(0,180,230,0.18);
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--white);
}
.social-btn:active { transform: translateY(0) scale(2.0); }
.social-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(0,180,230,0.25);
  border-color: var(--accent);
  color: var(--white);
}
.social-btn::after {
  content: attr(data-label);
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(-4px);
  padding: .35rem .6rem;
  border-radius: 999px;
  background: rgba(5,13,23,0.92);
  border: 1px solid rgba(0,180,230,0.25);
  color: var(--white);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity .15s ease, transform .15s ease;
}
.social-btn:hover::after,
.social-btn:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
@media (hover: none) {
  .social-btn::after { display: none; }
}

.social-float {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.social-float .social-btn {
  width: 52px;
  height: 52px;
  border-radius: 999px;
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(0,180,230,0.28);
  box-shadow: 0 18px 40px rgba(0,0,0,0.22);
}
.social-float .social-btn svg { width: 28px; height: 28px; }

@media (max-width: 768px) {
  .social-float { right: .9rem; bottom: .9rem; gap: .65rem; }
  .social-float .social-btn { width: 50px; height: 50px; }
}

/* ── FOOTER ── */
footer {
  background: var(--blue-dark);
  border-top: 1px solid rgba(0,180,230,0.15);
  padding: 2rem;
  text-align: center;
}
footer p { font-size: .78rem; color: rgba(255,255,255,0.35); }
footer strong { color: var(--accent); font-weight: 700; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 1.2rem; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: calc(68px + .8rem);
    left: 1.2rem;
    right: 1.2rem;
    flex-direction: column;
    gap: .6rem;
    padding: 1rem;
    background: rgba(255,255,255,0.98);
    border: 1px solid rgba(10, 18, 30, 0.08);
    border-radius: 16px;
    box-shadow: 0 18px 50px rgba(7, 30, 56, 0.14);
    backdrop-filter: blur(10px);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: .95rem 1.05rem;
    border-radius: 12px;
    background: rgba(10,18,30,0.03);
    font-size: .9rem;
    letter-spacing: 2px;
  }
  .nav-links a:hover { background: rgba(0,180,230,0.08); }
  .nav-links a.nav-cta { display: inline-flex; justify-content: center; }
  #hero { flex-direction: column; padding: 68px 1.4rem 2.4rem; }
  .hero-stats { gap: 2rem; }
  .hero-stats { position: static; width: 100%; margin-top: 2.2rem; }
  #hero::before { opacity: 0.18; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .fichas-grid { grid-template-columns: 1fr; }
  .fichas-media img { height: 190px; }
  .clients-section { padding: 1.15rem 1.1rem 1.2rem; }
  .map-embed iframe { height: 210px; }
}