/* =============================================
   VÉRTICE — Consultoría Política Estratégica
   B&N puro · Sans serif · Alto impacto
   ============================================= */

:root {
  --negro: #000000;
  --negro-2: #0a0a0a;
  --negro-3: #141414;
  --blanco: #ffffff;
  --gris: #8a8a8a;
  --gris-claro: #b5b5b5;
  --linea: rgba(255,255,255,0.12);
  --font: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-exp: 'Archivo Expanded', 'Archivo', sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  background: var(--negro);
  color: var(--blanco);
  font-family: var(--font);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--blanco); color: var(--negro); }

/* ---- SPLASH ---- */
#splash {
  position: fixed;
  inset: 0;
  background: var(--negro);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  z-index: 9999;
}

.splash-word {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 5rem);
  letter-spacing: 0.1em;
  color: var(--blanco);
  opacity: 0;
  animation: splashWord 0.9s var(--ease) 0.3s forwards;
}

.splash-bar {
  width: 0;
  height: 2px;
  background: var(--blanco);
  animation: splashBar 1.6s var(--ease) 0.2s forwards;
}

@keyframes splashWord {
  from { opacity: 0; letter-spacing: 0.4em; }
  to { opacity: 1; letter-spacing: 0.1em; }
}
@keyframes splashBar {
  0% { width: 0; }
  60% { width: 240px; }
  100% { width: 240px; }
}

/* ---- NAV ---- */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 3rem;
  transition: background 0.4s ease, padding 0.3s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1.1rem 3rem;
  border-bottom: 1px solid var(--linea);
}

.nav-logo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  color: var(--blanco);
  text-decoration: none;
}

.nav-links { display: flex; align-items: center; gap: 2.5rem; }

.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gris-claro);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blanco); }

.nav-cta {
  color: var(--negro) !important;
  background: var(--blanco);
  padding: 0.65rem 1.4rem !important;
  font-weight: 600 !important;
  transition: opacity 0.2s !important;
}
.nav-cta:hover { opacity: 0.85; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block; width: 26px; height: 2px;
  background: var(--blanco);
  transition: transform 0.3s, opacity 0.3s;
}

.mobile-menu {
  position: fixed; inset: 0;
  background: var(--negro);
  z-index: 999;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-link {
  font-family: var(--font-exp);
  font-weight: 700;
  font-size: 2.2rem;
  color: var(--blanco);
  text-decoration: none;
  text-transform: uppercase;
}

/* ---- CONTAINER ---- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 3rem; }

/* ---- REVEAL ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal[data-split] { opacity: 1; transform: none; }

/* ---- HERO ---- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.1) brightness(0.55);
  transform: scale(1.1);
  animation: heroZoom 16s ease-out forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.2) 40%, rgba(0,0,0,0.95) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 0 3rem 5rem;
}

.hero-tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris-claro);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 1.8s forwards;
}

.hero-title {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(3rem, 11vw, 10rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.hero-title .line { display: block; overflow: hidden; }
.hero-title .line-inner {
  display: block;
  transform: translateY(110%);
}
.hero-title .thin {
  font-family: var(--font);
  font-weight: 400;
  font-style: italic;
  text-transform: none;
  color: var(--gris-claro);
  font-size: 0.5em;
  letter-spacing: 0;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 3s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn-primary {
  display: inline-block;
  background: var(--blanco);
  color: var(--negro);
  padding: 1.1rem 2.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 0.2s, opacity 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }

.btn-ghost {
  display: inline-block;
  color: var(--blanco);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--gris);
  transition: border-color 0.2s;
}
.btn-ghost:hover { border-color: var(--blanco); }

.hero-foot {
  position: absolute;
  bottom: 1.75rem; left: 0; right: 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  padding: 0 3rem;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gris);
}

/* ---- MARQUEE ---- */
.marquee {
  background: var(--blanco);
  color: var(--negro);
  padding: 1.1rem 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  animation: scrollMarquee 22s linear infinite;
}
.marquee-track span {
  font-family: var(--font-exp);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}
@keyframes scrollMarquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- DECLARACIÓN ---- */
#declaracion { padding: 9rem 0; }
.declaracion-text {
  font-family: var(--font-exp);
  font-weight: 600;
  font-size: clamp(1.6rem, 4vw, 3.2rem);
  line-height: 1.25;
  max-width: 1000px;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.declaracion-text strong { color: var(--blanco); }
.declaracion-text { color: var(--gris); }
.declaracion-text strong { font-weight: 800; }
.declaracion-sub {
  font-size: 1rem;
  color: var(--gris-claro);
  letter-spacing: 0.05em;
  margin-top: 2rem;
  font-weight: 400;
}

/* ---- CONCEPTO ---- */
#concepto { padding: 8rem 0; border-top: 1px solid var(--linea); }

.section-tag {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris);
  margin-bottom: 1.75rem;
}

.concepto-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  margin-bottom: 6rem;
  align-items: center;
}

.concepto-titulo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.concepto-texto {
  font-size: 1.05rem;
  color: var(--gris-claro);
  line-height: 1.75;
  max-width: 460px;
}

.concepto-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.1);
}

.tres-palabras {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--linea);
}
.palabra {
  padding: 2.5rem 2rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.palabra-num {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 2.5rem;
  -webkit-text-stroke: 1px var(--gris);
  color: transparent;
}
.palabra-titulo {
  font-family: var(--font-exp);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}
.palabra-desc { font-size: 0.92rem; color: var(--gris-claro); line-height: 1.65; }

/* ---- SERVICIOS ---- */
#servicios { padding: 8rem 0; background: var(--negro-2); }
.servicios-header { margin-bottom: 4rem; }
.servicios-titulo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.pilares { border-top: 1px solid var(--linea); }
.pilar {
  display: grid;
  grid-template-columns: 80px 1fr 2fr;
  gap: 3rem;
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--linea);
  align-items: baseline;
  transition: padding-left 0.4s var(--ease), background 0.4s ease;
}
.pilar:hover { padding-left: 1.5rem; background: rgba(255,255,255,0.02); }
.pilar-num {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--gris);
}
.pilar-titulo {
  font-family: var(--font-exp);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.pilar-desc { font-size: 1rem; color: var(--gris-claro); line-height: 1.7; }

/* ---- BANNER IMAGEN ---- */
#banner-img {
  position: relative;
  height: 70vh;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.banner-foto {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.15) brightness(0.45);
}
.banner-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.35);
}
.banner-text { position: relative; z-index: 2; text-align: center; padding: 0 2rem; }
.banner-text h2 {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(1.8rem, 5vw, 4.5rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

/* ---- NIVELES ---- */
#niveles { padding: 8rem 0; }
#niveles .section-tag { margin-bottom: 3rem; }
.niveles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--linea);
  border: 1px solid var(--linea);
}
.nivel {
  background: var(--negro);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  transition: background 0.3s;
}
.nivel:hover { background: var(--negro-3); }
.nivel-destacado { background: var(--blanco); color: var(--negro); }
.nivel-destacado .nivel-tag { color: #555; }
.nivel-destacado .nivel-desc { color: #333; }
.nivel-destacado .nivel-lista li { color: #222; }
.nivel-destacado .nivel-lista li::before { color: var(--negro); }
.nivel-destacado .nivel-btn { color: var(--negro); border-color: rgba(0,0,0,0.3); }
.nivel-destacado .nivel-btn:hover { border-color: var(--negro); }
.nivel-destacado:hover { background: #f0f0f0; }

.nivel-badge-top {
  position: absolute;
  top: 0; left: 2.5rem;
  transform: translateY(-50%);
  background: var(--negro);
  color: var(--blanco);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border: 1px solid var(--blanco);
}
.nivel-nombre {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 1.6rem;
  line-height: 1.0;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.nivel-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gris);
}
.nivel-desc { font-size: 0.92rem; color: var(--gris-claro); line-height: 1.7; }
.nivel-lista { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; flex: 1; }
.nivel-lista li {
  font-size: 0.88rem;
  color: var(--gris-claro);
  padding-left: 1.4rem;
  position: relative;
}
.nivel-lista li::before {
  content: '—';
  position: absolute; left: 0;
  color: var(--blanco);
}
.nivel-btn {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blanco);
  text-decoration: none;
  border-bottom: 1px solid var(--gris);
  padding-bottom: 3px;
  align-self: flex-start;
  margin-top: 0.5rem;
  transition: border-color 0.2s;
}
.nivel-btn:hover { border-color: var(--blanco); }

/* ---- DIFERENCIA ---- */
#diferencia { padding: 8rem 0; background: var(--negro-2); }
.diferencia-header { margin-bottom: 4rem; }
.diferencia-titulo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.0;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin-top: 1rem;
}
.diferenciales {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--linea);
}
.diferencial {
  padding: 3rem 3rem 3rem 0;
  border-bottom: 1px solid var(--linea);
}
.diferencial:nth-child(odd) { border-right: 1px solid var(--linea); padding-right: 3rem; }
.diferencial:nth-child(even) { padding-left: 3rem; }
.diferencial-n {
  display: block;
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 2rem;
  -webkit-text-stroke: 1px var(--gris);
  color: transparent;
  margin-bottom: 1rem;
}
.diferencial h4 {
  font-family: var(--font-exp);
  font-weight: 700;
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}
.diferencial p { font-size: 0.95rem; color: var(--gris-claro); line-height: 1.7; }

/* ---- FRASE ---- */
#frase { padding: 10rem 0; border-top: 1px solid var(--linea); text-align: center; }
.frase-grande {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 6rem);
  line-height: 1.0;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  max-width: 1100px;
  margin: 0 auto;
}

/* ---- CONTACTO ---- */
#contacto { position: relative; padding: 9rem 0; overflow: hidden; }
.contacto-media { position: absolute; inset: 0; z-index: 0; }
.contacto-img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.1) brightness(0.3);
}
.contacto-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.6); }
#contacto .container { position: relative; z-index: 2; }
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 6rem;
  align-items: start;
}
.contacto-titulo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.contacto-sub { font-size: 1rem; color: var(--gris-claro); line-height: 1.75; margin-bottom: 2rem; max-width: 400px; }
.contacto-datos {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gris);
}

.form-contacto { display: flex; flex-direction: column; gap: 1.75rem; }
.form-group { display: flex; flex-direction: column; gap: 0.6rem; }
.form-group label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gris);
}
.form-group input, .form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.25);
  color: var(--blanco);
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.85rem 0;
  outline: none;
  resize: none;
  transition: border-color 0.2s;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--gris); }
.form-group input:focus, .form-group textarea:focus { border-bottom-color: var(--blanco); }
.btn-submit {
  background: var(--blanco);
  color: var(--negro);
  border: none;
  padding: 1.1rem 2.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  align-self: flex-start;
  transition: transform 0.2s, opacity 0.2s;
}
.btn-submit:hover { transform: translateY(-2px); opacity: 0.9; }

/* ---- FOOTER ---- */
#footer { padding: 4.5rem 0; border-top: 1px solid var(--linea); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 0.85rem; text-align: center; }
.footer-logo {
  font-family: var(--font-exp);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: 0.06em;
}
.footer-tagline, .footer-origen {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gris);
}
.footer-legal { font-size: 0.7rem; color: #444; margin-top: 0.5rem; }

/* ---- RESPONSIVE ---- */
@media (max-width: 980px) {
  .container { padding: 0 1.5rem; }
  #nav { padding: 1.25rem 1.5rem; }
  #nav.scrolled { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero-content { padding: 0 1.5rem 4rem; }
  .hero-foot { padding: 0 1.5rem; }
  .concepto-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .concepto-img { height: 360px; }
  .tres-palabras { grid-template-columns: 1fr; }
  .palabra { padding: 2rem 0; border-bottom: 1px solid var(--linea); }
  .pilar { grid-template-columns: 50px 1fr; gap: 1rem 1.5rem; }
  .pilar-desc { grid-column: 1 / -1; }
  .niveles-grid { grid-template-columns: 1fr; }
  .diferenciales { grid-template-columns: 1fr; }
  .diferencial { padding: 2.5rem 0 !important; border-right: none !important; }
  .contacto-grid { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 600px) {
  #declaracion, #concepto, #servicios, #niveles, #diferencia, #contacto { padding: 5rem 0; }
  #frase { padding: 6rem 0; }
  .hero-title { font-size: clamp(2.8rem, 14vw, 5rem); }
  .hero-actions { flex-direction: column; align-items: flex-start; width: 100%; }
  .btn-primary { width: 100%; text-align: center; }
  .marquee-track span { font-size: 0.9rem; }
}

/* Estado del formulario de contacto */
.form-estado {
  margin-top: 12px;
  font-size: 0.9rem;
  min-height: 1.2em;
  line-height: 1.4;
}