:root {
  --navy:     #071428;
  --navy-2:   #0f172a;
  --navy-3:   #1e293b;
  --celeste:  #38bdf8;
  --cel-mid:  #0ea5e9;
  --cel-dark: #0284c7;
  --light-bg: #f1f5f9;
  --border:   #e2e8f0;
  --text:     #1e293b;
  --muted:    #64748b;
  --white:    #ffffff;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); background: var(--white); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ── NAVBAR ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%; height: 68px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.1rem; color: var(--white); letter-spacing: 0.5px;
}
.nav-logo i { color: var(--celeste); }
.nav-links { display: flex; list-style: none; gap: 34px; }
.nav-links a {
  font-size: 0.87rem; font-weight: 500;
  color: rgba(255,255,255,0.72); transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-btn {
  display: flex; align-items: center; gap: 7px;
  background: var(--cel-mid); color: var(--white);
  font-weight: 600; font-size: 0.84rem;
  padding: 9px 18px; border-radius: 50px;
  transition: background 0.2s, transform 0.2s;
}
.nav-btn:hover { background: var(--celeste); color: var(--navy); transform: translateY(-1px); }

.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
}
.nav-burger span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px; transition: all 0.3s;
}
.nav-mobile {
  display: none; position: fixed;
  top: 68px; left: 0; right: 0;
  background: var(--navy); padding: 20px 5% 30px;
  flex-direction: column; gap: 4px;
  border-top: 1px solid rgba(255,255,255,0.06); z-index: 999;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  color: rgba(255,255,255,0.78); font-size: 1rem; font-weight: 500;
  padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-mobile .nav-btn { align-self: flex-start; margin-top: 14px; border-bottom: none; }

/* ── HERO ── */
.hero {
  position: relative; height: 100vh; min-height: 580px;
  display: flex; align-items: flex-end;
  padding: 0 5% 90px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('../img/fondo_telecom.jpg') center/cover no-repeat;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(
    to top,
    rgba(7,20,40,0.90) 0%,
    rgba(7,20,40,0.55) 50%,
    rgba(7,20,40,0.25) 100%
  );
}
.hero-content { position: relative; z-index: 1; max-width: 620px; }
.hero-tag {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--celeste); margin-bottom: 22px;
}
.hero-tag::before {
  content: ''; display: block; width: 38px; height: 2px;
  background: var(--celeste); border-radius: 2px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800;
  color: var(--white); line-height: 1.1; margin-bottom: 18px;
}
.hero p {
  font-size: 1.05rem; color: rgba(255,255,255,0.78);
  margin-bottom: 36px; max-width: 500px;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--cel-mid); color: var(--white);
  font-weight: 700; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 50px;
  transition: background 0.2s, transform 0.2s;
}
.hero-cta:hover { background: var(--celeste); color: var(--navy); transform: translateY(-2px); }

/* ── ETIQUETA DE SECCIÓN ── */
.s-label {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 22px;
}
.s-label::before { content: ''; display: block; width: 36px; height: 2px; border-radius: 2px; }
.s-label--light       { color: var(--celeste); }
.s-label--light::before { background: var(--celeste); }
.s-label--blue        { color: var(--cel-dark); }
.s-label--blue::before  { background: var(--cel-dark); }

/* ── BOTONES ── */
.btn-fill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--cel-mid); color: var(--white);
  font-weight: 700; font-size: 0.9rem;
  padding: 12px 24px; border-radius: 50px;
  transition: background 0.2s, transform 0.2s;
}
.btn-fill:hover { background: var(--celeste); color: var(--navy); transform: translateY(-2px); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  color: rgba(255,255,255,0.65); font-weight: 500; font-size: 0.9rem;
  transition: color 0.2s;
}
.btn-ghost:hover { color: var(--white); }

/* ── NOSOTROS ── */
.sec-nosotros { background: var(--navy); padding: 100px 5%; }
.nos-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; max-width: 1200px; margin: 0 auto; align-items: center;
}
.nos-left h2 {
  font-size: clamp(1.9rem, 3.5vw, 3rem); font-weight: 800;
  color: var(--white); line-height: 1.15; margin-bottom: 18px;
}
.nos-left h2 span { color: var(--celeste); }
.nos-left > p {
  font-size: 0.97rem; color: rgba(255,255,255,0.62);
  margin-bottom: 28px; line-height: 1.75;
}
.nos-bullets { display: flex; flex-wrap: wrap; gap: 14px; list-style: none; margin-bottom: 36px; }
.nos-bullets li {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.87rem; font-weight: 600; color: rgba(255,255,255,0.83);
}
.nos-bullets li i { color: var(--celeste); font-size: 0.6rem; }
.nos-btns { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }

.nos-right { display: flex; flex-direction: column; gap: 28px; }
.nos-group-lbl {
  font-size: 0.64rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 12px;
}
.nos-list { list-style: none; }
.nos-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,0.07);
  font-size: 1.05rem; font-weight: 600; color: var(--white);
  transition: color 0.2s; cursor: default;
}
.nos-list li:hover { color: var(--celeste); }
.nos-list li .mk { display: flex; align-items: center; gap: 10px; }
.nos-list li .mk i { font-size: 0.55rem; color: var(--celeste); }
.nos-list li .cd { font-size: 0.68rem; font-weight: 700; color: var(--muted); letter-spacing: 0.08em; }
.nos-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 6px; }
.stat {
  background: rgba(56,189,248,0.06);
  border: 1px solid rgba(56,189,248,0.15);
  border-radius: 12px; padding: 16px 18px;
}
.stat-n { font-size: 1.7rem; font-weight: 800; color: var(--celeste); line-height: 1; margin-bottom: 4px; }
.stat-l { font-size: 0.76rem; color: rgba(255,255,255,0.52); line-height: 1.35; }

/* ── SERVICIOS ── */
.sec-servicios { background: var(--light-bg); padding: 100px 5%; }
.srv-head { text-align: center; margin-bottom: 56px; }
.srv-head h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; color: var(--text); margin-bottom: 12px; }
.srv-head p { font-size: 0.97rem; color: var(--muted); }
.srv-layout {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 22px; max-width: 1100px; margin: 0 auto; align-items: start;
}
.srv-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.srv-tab {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 10px; padding: 20px 14px;
  background: var(--white); border: 2px solid var(--border);
  border-radius: 14px; cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.srv-tab i { font-size: 1.35rem; color: var(--muted); transition: color 0.2s; }
.srv-tab span { font-size: 0.77rem; font-weight: 600; color: var(--muted); line-height: 1.3; }
.srv-tab:hover,
.srv-tab.active { border-color: var(--cel-mid); box-shadow: 0 0 0 4px rgba(14,165,233,0.1); }
.srv-tab.active i    { color: var(--cel-mid); }
.srv-tab.active span { color: var(--text); }
.srv-panel {
  background: var(--white); border-radius: 18px; padding: 38px;
  border: 1px solid var(--border); min-height: 360px;
}
.srv-inner { display: none; }
.srv-inner.active { display: block; }
.srv-inner h3 { font-size: 1.38rem; font-weight: 800; color: var(--text); margin-bottom: 6px; }
.srv-tagline { display: block; font-size: 0.84rem; font-weight: 600; color: var(--cel-mid); margin-bottom: 18px; }
.srv-inner p { font-size: 0.94rem; color: var(--muted); margin-bottom: 22px; line-height: 1.72; }
.srv-checks { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.srv-checks li { display: flex; align-items: center; gap: 9px; font-size: 0.87rem; color: var(--text); }
.srv-checks li i { color: var(--cel-mid); font-size: 0.82rem; flex-shrink: 0; }
.srv-link {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--cel-mid); color: var(--white);
  font-weight: 700; font-size: 0.86rem;
  padding: 11px 22px; border-radius: 50px; margin-top: 26px;
  transition: background 0.2s, transform 0.2s;
}
.srv-link:hover { background: var(--navy); transform: translateY(-2px); }

/* ── PLATAFORMA ── */
.sec-plat { background: var(--white); padding: 100px 5%; }
.plat-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; max-width: 1200px; margin: 0 auto; align-items: center;
}
.plat-left h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.5rem); font-weight: 800;
  color: var(--text); line-height: 1.2; margin-bottom: 14px;
}
.plat-left > p { font-size: 0.95rem; color: var(--muted); margin-bottom: 34px; }
.feat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 34px; }
.feat {
  padding: 18px; border: 1px solid var(--border);
  border-radius: 12px; transition: border-color 0.2s, box-shadow 0.2s;
}
.feat:hover { border-color: var(--cel-mid); box-shadow: 0 2px 12px rgba(14,165,233,0.1); }
.feat i { font-size: 1.15rem; color: var(--cel-mid); margin-bottom: 9px; }
.feat h4 { font-size: 0.86rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.feat p { font-size: 0.77rem; color: var(--muted); line-height: 1.45; }
.plat-right { position: relative; }
.plat-img {
  width: 100%; border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
  aspect-ratio: 4/3; object-fit: cover;
}
.plat-badge {
  position: absolute; bottom: -20px; left: -18px;
  background: var(--navy); color: var(--white);
  border-radius: 14px; padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.22);
}
.plat-badge i { color: var(--celeste); font-size: 1.3rem; }
.plat-badge strong { display: block; font-size: 0.83rem; font-weight: 700; }
.plat-badge span { font-size: 0.7rem; color: rgba(255,255,255,0.55); }

/* ── CTA BANNER ── */
.sec-cta { padding: 60px 5%; background: var(--light-bg); }
.cta-box {
  max-width: 1100px; margin: 0 auto;
  background: var(--navy); border-radius: 20px;
  display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: 40px; padding: 48px 56px;
  position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; inset: 0;
  background: url('../img/tendido.png') right center / cover;
  opacity: 0.05;
}
.cta-txt { position: relative; z-index: 1; }
.cta-txt h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem); font-weight: 800;
  color: var(--white); margin-bottom: 8px; line-height: 1.2;
}
.cta-txt p { font-size: 0.9rem; color: rgba(255,255,255,0.58); }
.cta-btn-wrap { position: relative; z-index: 1; }
.cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--cel-mid); color: var(--white);
  font-weight: 700; font-size: 0.9rem;
  padding: 14px 28px; border-radius: 50px; white-space: nowrap;
  transition: background 0.2s, transform 0.2s;
}
.cta-btn:hover { background: var(--celeste); color: var(--navy); transform: translateY(-2px); }

/* ── FOOTER ── */
footer { background: #e2e8f0; padding: 60px 5% 0; }
.ft-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px; max-width: 1200px; margin: 0 auto; padding-bottom: 48px;
}
.ft-brand-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.1rem; color: var(--navy);
}
.ft-brand-logo i { color: var(--cel-dark); }
.ft-brand p {
  font-size: 0.86rem; color: var(--muted);
  margin-top: 14px; line-height: 1.65; max-width: 290px;
}
.ft-col h5 {
  font-size: 0.82rem; font-weight: 700; color: var(--text);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 18px;
}
.ft-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.ft-col ul li a { font-size: 0.86rem; color: var(--muted); transition: color 0.2s; }
.ft-col ul li a:hover { color: var(--cel-dark); }
.ft-col ul li a.hl { color: var(--cel-dark); font-weight: 600; }
.ft-contact-row {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 0.86rem; color: var(--muted); padding: 5px 0;
}
.ft-contact-row i { color: var(--cel-dark); margin-top: 2px; flex-shrink: 0; }
.ft-contact-row a { color: var(--muted); transition: color 0.2s; }
.ft-contact-row a:hover { color: var(--cel-dark); }
.ft-bottom {
  border-top: 1px solid #cbd5e1; padding: 20px 0;
  max-width: 1200px; margin: 0 auto; text-align: center;
}
.ft-bottom p { font-size: 0.78rem; color: var(--muted); }

/* ── REVEAL ── */
.rv { opacity: 0; transform: translateY(22px); transition: opacity 0.55s ease, transform 0.55s ease; }
.rv.in { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 920px) {
  .nav-links, .nav > .nav-btn { display: none; }
  .nav-burger { display: flex; }
  .nos-grid, .plat-grid { grid-template-columns: 1fr; gap: 48px; }
  .srv-layout { grid-template-columns: 1fr; }
  .srv-panel { min-height: unset; }
  .cta-box { grid-template-columns: 1fr; padding: 36px; }
  .ft-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 600px) {
  .hero { padding-bottom: 60px; }
  .sec-nosotros, .sec-servicios, .sec-plat { padding: 70px 5%; }
  .feat-grid { grid-template-columns: 1fr; }
  .nos-stats { grid-template-columns: 1fr 1fr; }
  .ft-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-box { padding: 28px 22px; }
  .plat-badge { bottom: 10px; left: 10px; }
}