/* =============================================
   IZZO³ — LANDING PAGE STYLES
   Font: Outfit (Google Fonts)
   ============================================= */

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

:root {
  --color-bg:         #1D2226;
  --color-bg-light:   #F5F5F3;
  --color-bg-white:   #FFFFFF;
  --color-accent:     #00C185;
  --color-accent-dim: #00a370;
  --color-text:       #FFFFFF;
  --color-text-dark:  #1A1A1A;
  --color-text-muted: #888888;
  --color-card-bg:    #1D2226;
  --color-border:     rgba(255,255,255,0.08);

  --font: 'Outfit', sans-serif;

  --sp-1:  8px;
  --sp-2:  16px;
  --sp-3:  24px;
  --sp-4:  32px;
  --sp-5:  48px;
  --sp-6:  64px;
  --sp-7:  96px;
  --sp-8:  128px;

  --radius:    4px;
  --radius-lg: 12px;
  --max-w:     1200px;

  --transition: 0.3s ease;
}

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

body {
  font-family: var(--font);
  background: var(--color-bg-light);
  color: var(--color-text-dark);
  overflow-x: hidden;
  cursor: none;
}

/* Custom cursor */
.cursor {
  position: fixed;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.2s ease, height 0.2s ease;
  mix-blend-mode: difference;
}

.cursor--grow {
  width: 40px;
  height: 40px;
}

/* ---- UTILITIES ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

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

.section {
  padding: var(--sp-7) 0;
}

.section__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-text-dark);
  margin-bottom: var(--sp-5);
  letter-spacing: -0.02em;
}

/* ---- REVEAL ANIMATIONS ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}

.reveal--delay-1 { --delay: 0.12s; }
.reveal--delay-2 { --delay: 0.24s; }
.reveal--delay-3 { --delay: 0.36s; }

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--sp-3) 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background: var(--color-bg);
  box-shadow: 0 1px 0 rgba(0,193,133,0.15);
  padding: var(--sp-2) 0;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text-dark);
  text-decoration: none;
  letter-spacing: -0.03em;
  transition: color var(--transition);
}

.navbar.scrolled .navbar__logo {
  color: var(--color-text);
}

.navbar__logo sup {
  color: var(--color-accent);
  font-size: 0.7em;
  font-weight: 900;
}

.navbar__links {
  display: flex;
  gap: var(--sp-4);
  list-style: none;
}

.navbar__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-dark);
  text-decoration: none;
  letter-spacing: 0.03em;
  position: relative;
  transition: color var(--transition);
}

.navbar.scrolled .navbar__link {
  color: rgba(255,255,255,0.7);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.navbar__link:hover::after,
.navbar.scrolled .navbar__link:hover {
  width: 100%;
  color: var(--color-accent);
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-dark);
  transition: all var(--transition);
}

.navbar.scrolled .navbar__hamburger span {
  background: var(--color-text);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  background: #FFFFFF;
  padding: calc(var(--sp-8) + var(--sp-5)) 0 var(--sp-7);
  overflow: hidden;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-5);
}

.hero__title {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text-dark);
}

/* Video embed */
.hero__video-wrap {
  width: 100%;
  max-width: 720px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.13), 0 4px 16px rgba(0,0,0,0.07);
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
}

.hero__video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.hero__quote {
  max-width: 540px;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  font-weight: 400;
  font-style: italic;
  color: #555;
  line-height: 1.6;
  border: none;
  padding: 0;
}

/* =============================================
   3 PILARES
   ============================================= */
.pilares {
  background: var(--color-bg);
  padding: var(--sp-7) 0;
}

.pilares__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-5);
  align-items: center;
  max-width: 860px;
  margin: 0 auto;
}

.pilares__numero {
  line-height: 0.9;
  display: flex;
  align-items: center;
}

.pilares__numero span {
  font-size: clamp(160px, 20vw, 260px);
  font-weight: 900;
  color: var(--color-accent);
  display: block;
  letter-spacing: -0.05em;
}

.pilares__lista {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pilares__item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-3);
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
}

.pilares__divider {
  height: var(--sp-2);
  background: transparent;
}

.pilares__num {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  min-width: 20px;
  padding-top: 4px;
}

.pilares__titulo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.pilares__desc {
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 400;
}

/* =============================================
   PROYECTOS
   ============================================= */
.proyectos {
  background: var(--color-bg-light);
}

.proyectos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.proyecto-card {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  cursor: pointer;
}

.proyecto-card__img {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.4s ease;
}

.proyecto-card:hover .proyecto-card__img {
  transform: scale(1.05);
}

.proyecto-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.proyecto-card:hover .proyecto-card__img img {
  transform: scale(1.05);
}

.proyecto-card__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 16px;
}

.placeholder-chip {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font);
}

.placeholder-logo {
  font-family: var(--font);
  text-align: center;
}

.proyecto-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.proyecto-card:hover .proyecto-card__overlay {
  opacity: 1;
}

.proyecto-card__overlay span {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  font-family: var(--font);
}

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

.servicios__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
}

.servicios__subtitulo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: var(--sp-3);
  letter-spacing: -0.01em;
}

.servicios__lista {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.servicios__lista li {
  font-size: 0.9rem;
  color: #444;
  font-weight: 400;
  line-height: 1.5;
  padding-left: var(--sp-2);
  position: relative;
}

.servicios__lista li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 900;
}

/* =============================================
   ARTÍCULOS
   ============================================= */
.articulos {
  background: var(--color-bg-white);
  padding-top: 0;
}

.articulos__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
}

.articulos__header .section__title {
  margin-bottom: 0;
}

.articulos__nav {
  display: none; /* shown only on mobile via JS class */
  gap: var(--sp-1);
}

.articulos__btn {
  width: 44px;
  height: 44px;
  border: 1.5px solid #ddd;
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.articulos__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.articulos__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.articulos__track-wrap {
  overflow: hidden;
}

.articulos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.articulo-card__img img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.articulo-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.articulo-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.articulo-card__body {
  padding: var(--sp-3);
}

.articulo-card__titulo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: var(--sp-1);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.articulo-card__fecha {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
  display: block;
  margin-bottom: var(--sp-2);
}

.articulo-card__excerpt {
  font-size: 0.82rem;
  color: #666;
  line-height: 1.55;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--color-bg);
  padding: var(--sp-5) 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--sp-4);
}

.footer__copy {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.footer__cta {
  display: flex;
  gap: var(--sp-1);
  align-items: center;
}

.footer__input {
  font-family: var(--font);
  font-size: 0.82rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 10px 16px;
  color: #fff;
  width: 220px;
  outline: none;
  transition: border-color var(--transition);
}

.footer__input::placeholder {
  color: rgba(255,255,255,0.3);
}

.footer__input:focus {
  border-color: var(--color-accent);
}

.footer__btn {
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  background: var(--color-accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}

.footer__btn:hover {
  background: var(--color-accent-dim);
  transform: translateY(-1px);
}

.footer__redes {
  display: flex;
  gap: var(--sp-3);
  justify-content: flex-end;
  align-items: center;
}

.footer__red {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  display: flex;
  align-items: center;
  transition: color var(--transition), transform var(--transition);
}

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

/* =============================================
   ARTÍCULOS — CARRUSEL NAV (mobile only)
   ============================================= */
.articulos__nav {
  display: none; /* shown only on mobile via media query */
  justify-content: flex-end;
  gap: var(--sp-1);
  margin-bottom: var(--sp-3);
}

.articulos__nav-btn {
  width: 44px;
  height: 44px;
  border: 1.5px solid #ddd;
  background: #fff;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  color: var(--color-text-dark);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  font-family: var(--font);
}

.articulos__nav-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
}

.articulos__nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.articulos__dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: var(--sp-3);
}

.articulos__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ddd;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition), transform var(--transition);
}

.articulos__dot.is-active {
  background: var(--color-accent);
  transform: scale(1.3);
}

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

/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet */
@media (max-width: 1024px) {
  .pilares__numero span {
    font-size: 150px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--sp-3);
  }

  .footer__redes {
    justify-content: center;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --sp-7: 64px;
  }

  /* Navbar mobile */
  .navbar__hamburger {
    display: flex;
  }

  .navbar__links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70vw;
    max-width: 300px;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--sp-4);
    transition: right var(--transition);
    box-shadow: -4px 0 40px rgba(0,0,0,0.3);
  }

  .navbar__links.is-open {
    right: 0;
  }

  .navbar__link {
    font-size: 1.3rem !important;
    color: var(--color-text) !important;
  }

  /* Hero */
  .hero__title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  /* Pilares mobile: stacked */
  .pilares__inner {
    grid-template-columns: 1fr;
    gap: 0;
    text-align: center;
    max-width: 100%;
  }

  .pilares__numero {
    justify-content: center;
  }

  .pilares__numero span {
    font-size: 45vw;
    margin-bottom: var(--sp-2);
  }

  .pilares__item {
    justify-content: flex-start;
    text-align: left;
  }

  /* Proyectos: 1 columna en mobile */
  .proyectos__grid {
    grid-template-columns: 1fr;
  }

  /* Servicios */
  .servicios__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }

  /* Artículos: carrusel */
  .articulos__track-wrap {
    overflow: hidden;
  }

  .articulos__grid {
    display: flex;
    gap: var(--sp-2);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
  }

  .articulo-card {
    min-width: calc(85vw - var(--sp-3));
    max-width: calc(85vw - var(--sp-3));
    flex-shrink: 0;
  }

  .articulos__nav {
    display: flex !important;
  }

  .articulos__dots {
    display: flex;
  }

  /* Footer */
  .footer__cta {
    flex-direction: column;
    width: 100%;
  }

  .footer__input {
    width: 100%;
  }

  .footer__btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .articulo-card {
    min-width: calc(90vw - var(--sp-3));
    max-width: calc(90vw - var(--sp-3));
  }
}

/* ---- Scrollbar styling ---- */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}
::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 3px;
}

/* ---- FIX: imágenes en cards de artículos ---- */
.articulo-card__img {
  overflow: hidden;
  height: 160px;
}
 
.articulo-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}