/* ==========================================================
   ALPHA CÚBICA, S.C. — Stylesheet premium
   Paleta verde institucional · Manrope + Inter · Glassmorphism
   ========================================================== */

:root {
  /* Brand */
  --green:       #35B271;
  --green-strong:#2A9760;
  --green-deep:  #0B2D22;
  --green-deep-2:#0F3A2C;
  --green-soft:  #EAF7F0;
  --green-tint:  #F1FAF5;

  /* Neutros */
  --black:    #050505;
  --ink:      #0B0F12;
  --slate:    #1F2A26;
  --gray-text:#6B7280;
  --gray-mute:#9AA3AB;
  --gray-line:#E6EAE8;
  --gray-bg:  #F5F7F6;
  --white:    #FFFFFF;

  /* Tokens */
  --radius-sm:8px;
  --radius:   16px;
  --radius-lg:22px;
  --radius-xl:28px;

  --shadow-xs: 0 1px 2px rgba(11,45,34,.05);
  --shadow-sm: 0 4px 14px rgba(11,45,34,.06);
  --shadow-md: 0 14px 40px rgba(11,45,34,.08);
  --shadow-lg: 0 24px 70px rgba(11,45,34,.14);
  --shadow-glow: 0 18px 60px rgba(53,178,113,.28);

  --font-display:'Manrope',system-ui,-apple-system,sans-serif;
  --font-body:   'Inter',system-ui,-apple-system,sans-serif;

  --container: 1200px;
  --nav-h:     76px;
  --ease: cubic-bezier(0.22,1,0.36,1);
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{list-style:none;padding:0;margin:0}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.02em;
  margin:0;
  color:var(--ink);
}
::selection{background:var(--green);color:#fff}

/* ── Containers ── */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
}

.section{
  position:relative;
  padding:120px 0;
  overflow:hidden;
}
.section-soft{background:var(--gray-bg)}
.section-dark{
  background:radial-gradient(120% 80% at 50% 0%,#102e23 0%,#050a08 80%);
  color:var(--white);
}

.section-header{
  text-align:center;
  max-width:760px;
  margin:0 auto 64px;
}
.section-title{
  font-size:clamp(2rem,4vw,3rem);
  line-height:1.1;
  margin-bottom:16px;
}
.section-title-light{color:var(--white)}
.section-lead{font-size:1.05rem;color:var(--gray-text);margin:0}
.section-lead-light{color:rgba(255,255,255,.7)}

/* Tags */
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--green-soft);
  color:var(--green-strong);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:16px;
}
.tag-light{
  background:rgba(53,178,113,.14);
  color:var(--green);
  border:1px solid rgba(53,178,113,.3);
}

.text-gradient{
  background:linear-gradient(120deg,var(--green) 0%,#5BD49A 60%,var(--green-strong) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* ── Buttons ── */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  border-radius:999px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.95rem;
  letter-spacing:-.005em;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-lg{padding:15px 28px;font-size:1rem}

.btn-primary{
  background:var(--green);
  color:var(--white);
  box-shadow:0 10px 24px rgba(53,178,113,.32);
}
.btn-primary:hover{
  background:var(--green-strong);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(53,178,113,.4);
}
.btn-primary:active{transform:translateY(0)}

.btn-ghost{
  background:transparent;
  color:var(--white);
  border-color:rgba(255,255,255,.28);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.5);
  transform:translateY(-2px);
}

.btn-whatsapp{
  background:#25D366;
  color:#fff;
  box-shadow:0 10px 24px rgba(37,211,102,.3);
}
.btn-whatsapp:hover{background:#1FB857;transform:translateY(-2px)}

/* ── Navbar ── */
.navbar{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:var(--nav-h);
  background:rgba(255,255,255,.55);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.navbar.scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--gray-line);
  box-shadow:0 6px 24px rgba(11,45,34,.06);
}

.nav-container{
  max-width:var(--container);
  height:100%;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.nav-logo{
  display:flex;
  align-items:center;
  flex-shrink:0;
  height:60px;
}
.nav-logo img{height:100%;width:auto;object-fit:contain}

.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-family:var(--font-display);
  font-weight:500;
  font-size:.88rem;
  color:var(--slate);
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--green-strong);background:var(--green-soft)}
.nav-link.active{color:var(--green-strong)}
.nav-link.active::after{
  content:'';
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%);
  width:16px;height:2px;
  border-radius:2px;
  background:var(--green);
}

.nav-cta{padding:10px 18px;font-size:.88rem}
.nav-cta-mobile{display:none}

.hamburger{
  display:none;
  width:42px;height:42px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  border-radius:10px;
}
.hamburger span{
  display:block;
  width:22px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s var(--ease);
}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── HERO ── */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:calc(var(--nav-h) + 70px) 0 80px;
  overflow:hidden;
  color:var(--white);
}
.hero-bg{position:absolute;inset:0;z-index:0;background:var(--green-deep)}

/* Video de fondo */
.hero-video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center center;
  z-index:0;
  /* sin deformación: cover centra y recorta */
}
/* Overlay oscuro directo sobre el video para máximo contraste */
.hero-video-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(
    160deg,
    rgba(5,18,12,.82) 0%,
    rgba(11,45,34,.70) 40%,
    rgba(3,10,7,.78) 100%
  );
}

.hero-gradient{
  position:absolute;inset:0;z-index:2;
  background:
    radial-gradient(70% 55% at 75% 8%, rgba(53,178,113,.32) 0%,transparent 60%),
    radial-gradient(55% 45% at 0% 100%,rgba(53,178,113,.20) 0%,transparent 60%),
    linear-gradient(180deg,rgba(11,45,34,.25) 0%,rgba(5,11,8,.40) 100%);
}
.hero-pattern{
  position:absolute;inset:0;z-index:3;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse at center,#000 20%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 20%,transparent 70%);
  opacity:.45;
  pointer-events:none;
}
.hero-glow{
  position:absolute;
  border-radius:50%;
  filter:blur(100px);
  opacity:.38;
  pointer-events:none;
  z-index:4;
}
.hero-glow-1{width:500px;height:500px;top:-180px;right:-130px;background:var(--green)}
.hero-glow-2{width:420px;height:420px;bottom:-180px;left:-130px;background:#0B6E47}

.hero-container{
  position:relative;z-index:5;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:60px;
  align-items:center;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 16px;
  border-radius:999px;
  background:rgba(53,178,113,.15);
  border:1px solid rgba(53,178,113,.35);
  color:#B6F0D2;
  font-size:.78rem;
  font-weight:500;
  letter-spacing:.04em;
  margin-bottom:22px;
}
.eyebrow-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 4px rgba(53,178,113,.2);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(53,178,113,.2)}
  50%{box-shadow:0 0 0 9px rgba(53,178,113,0)}
}

.hero-title{
  font-size:clamp(2.4rem,5.2vw,3.9rem);
  line-height:1.05;
  letter-spacing:-.03em;
  color:var(--white);
  margin-bottom:22px;
  font-weight:800;
}
.hero-subtitle{
  font-size:clamp(1rem,1.3vw,1.16rem);
  line-height:1.65;
  color:rgba(255,255,255,.76);
  max-width:580px;
  margin:0 0 36px;
}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}

.hero-microdata{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px 22px;
  max-width:520px;
}
.micro-item{
  display:flex;align-items:center;gap:10px;
  font-size:.9rem;
  color:rgba(255,255,255,.76);
}
.micro-item svg{color:var(--green);flex-shrink:0}
.micro-item strong{color:var(--white);font-weight:700}

/* Hero floating card */
.hero-card{
  position:relative;
  padding:32px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(22px) saturate(160%);
  -webkit-backdrop-filter:blur(22px) saturate(160%);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 80px rgba(0,0,0,.4);
  animation:float 6s ease-in-out infinite;
}
@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

.hero-card-logo{
  position:absolute;
  top:-36px;right:28px;
  width:92px;height:92px;
  border-radius:18px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  padding:14px;
  backdrop-filter:blur(10px);
}
.hero-card-logo img{width:100%;height:100%;object-fit:contain}

.hero-card-eyebrow{
  font-family:var(--font-display);
  font-size:.76rem;font-weight:600;
  letter-spacing:.12em;
  color:var(--green);
  text-transform:uppercase;
  margin:0 0 18px;
}
.hero-card-list{display:grid;gap:18px}
.hero-card-list li{display:flex;align-items:flex-start;gap:14px}
.hero-card-list strong{
  display:block;color:var(--white);
  font-family:var(--font-display);font-weight:600;font-size:1rem;
}
.hero-card-list span{color:rgba(255,255,255,.6);font-size:.86rem}

.hcl-icon{
  width:36px;height:36px;flex-shrink:0;
  border-radius:10px;
  background:rgba(53,178,113,.15);
  color:var(--green);
  display:flex;align-items:center;justify-content:center;
}

.hero-card-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  font-family:var(--font-display);font-weight:600;font-size:.9rem;
  color:var(--green);width:100%;
  transition:gap .25s var(--ease),color .25s var(--ease);
}
.hero-card-link:hover{color:#5BD49A;gap:14px}

.hero-scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);
  width:26px;height:44px;
  border:1.5px solid rgba(255,255,255,.3);
  border-radius:14px;
  display:flex;justify-content:center;padding-top:8px;z-index:6;
}
.hero-scroll span{
  width:3px;height:8px;
  background:rgba(255,255,255,.7);
  border-radius:3px;
  animation:scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot{
  0%{transform:translateY(0);opacity:1}
  100%{transform:translateY(14px);opacity:0}
}

/* ── Watermarks ── */
.watermark{position:absolute;pointer-events:none;opacity:.04;z-index:0}
.watermark img{width:100%;height:auto}
.watermark-right{top:80px;right:-100px;width:460px}
.watermark-left{bottom:-80px;left:-100px;width:460px}
.watermark-center{
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:700px;opacity:.05;
}

/* ══════════════════════════════════════════════════
   SCROLL-DRIVEN VIDEO
   La sección es alta (altura = JS la asigna).
   El contenido interno es sticky 100 vh.
   El video se scruba con currentTime según scrollY.
   ══════════════════════════════════════════════════ */

/* Contenedor scroll — altura asignada por JS en loadedmetadata */
.svid-section{
  position:relative;
  /* fallback mientras el video carga */
  height:400vh;
  background:var(--black);
}

/* Zona sticky que ocupa la ventana completa */
.svid-sticky{
  position:sticky;
  top:0;
  height:100vh;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--black);
}

/* Video — llena todo el sticky sin deformarse */
.svid-video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  display:block;
  /* sin deformación en ningún ratio */
  will-change:transform;
}

/* Overlay superior: fundido desde sección anterior */
.svid-overlay-top{
  position:absolute;
  top:0;left:0;right:0;
  height:18%;
  background:linear-gradient(to bottom,#050505 0%,transparent 100%);
  z-index:2;
  pointer-events:none;
}

/* Overlay inferior: fundido hacia sección siguiente */
.svid-overlay-bottom{
  position:absolute;
  bottom:0;left:0;right:0;
  height:18%;
  background:linear-gradient(to top,#050505 0%,transparent 100%);
  z-index:2;
  pointer-events:none;
}

/* Barra de progreso en la parte inferior */
.svid-progress-track{
  position:absolute;
  bottom:56px;
  left:50%;
  transform:translateX(-50%);
  width:min(480px,70vw);
  height:2px;
  background:rgba(255,255,255,.18);
  border-radius:2px;
  z-index:5;
  overflow:hidden;
}
.svid-progress-bar{
  height:100%;
  width:100%;
  background:var(--green);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .05s linear;
  will-change:transform;
}

/* Etiqueta institucional */
.svid-label{
  position:absolute;
  bottom:72px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-size:.78rem;
  font-weight:500;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:rgba(255,255,255,.55);
  white-space:nowrap;
  z-index:6;
  pointer-events:none;
}
.svid-label-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(53,178,113,.25);
  flex-shrink:0;
}

/* Hint de scroll — desaparece al primer movimiento */
.svid-scroll-hint{
  position:absolute;
  bottom:108px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-family:var(--font-display);
  font-size:.8rem;
  font-weight:500;
  letter-spacing:.06em;
  color:rgba(255,255,255,.5);
  z-index:6;
  pointer-events:none;
  transition:opacity .5s var(--ease);
  animation:hintBounce 1.8s ease-in-out infinite;
}
.svid-scroll-hint svg{
  color:var(--green);
  opacity:.8;
}
.svid-scroll-hint.hidden{opacity:0}

@keyframes hintBounce{
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(6px)}
}

/* Responsive: en móvil se reduce la barra y la etiqueta */
@media(max-width:640px){
  .svid-progress-track{width:80vw;bottom:48px}
  .svid-label{bottom:64px;font-size:.72rem}
  .svid-scroll-hint{bottom:96px}
}

/* Si prefers-reduced-motion: el video se pausa y se muestra el poster */
@media(prefers-reduced-motion:reduce){
  .svid-section{height:100vh}
  .svid-scroll-hint{display:none}
}

/* ── Sección con fondo de imagen (quiénes somos) ── */
#quienes-somos{
  background:
    linear-gradient(rgba(245,247,246,.97) 0%,rgba(245,247,246,.97) 100%),
    url('./assets/alpha-fondo-blanco.jpg') center/cover no-repeat;
}

/* ── Metodología: fondo imagen suave ── */
#metodologia{
  background:
    linear-gradient(rgba(245,247,246,.96) 0%,rgba(245,247,246,.96) 100%),
    url('./assets/alpha-fondo.jpg') center/cover no-repeat;
}

/* ── SECCIÓN INSTITUCIONAL (franja con imagen) ── */
.section-institucional{
  position:relative;
  overflow:hidden;
  padding:100px 0;
  color:var(--white);
}
.inst-bg{
  position:absolute;inset:0;z-index:0;
}
.inst-bg-img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
  /* sin deformación */
}
.inst-overlay{
  position:absolute;inset:0;
  background:linear-gradient(
    135deg,
    rgba(5,18,12,.88) 0%,
    rgba(11,45,34,.80) 50%,
    rgba(5,10,7,.90) 100%
  );
}
.inst-container{
  position:relative;z-index:1;
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:48px;
  align-items:center;
}
.inst-logo{
  width:160px;flex-shrink:0;
  filter:brightness(0) invert(1);
  opacity:.9;
}
.inst-logo img{width:100%;height:auto}
.inst-text{flex:1}
.inst-quote{
  font-family:var(--font-display);
  font-size:clamp(1.1rem,1.6vw,1.38rem);
  font-weight:500;
  line-height:1.55;
  color:var(--white);
  margin:0 0 14px;
  font-style:italic;
  letter-spacing:-.01em;
}
.inst-quote::before{content:'\201C';margin-right:2px}
.inst-quote::after{content:'\201D';margin-left:2px}
.inst-byline{
  font-size:.84rem;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--green);
  text-transform:uppercase;
  font-style:normal;
}
.inst-stats{
  display:flex;align-items:center;gap:28px;flex-shrink:0;
}
.inst-stat{
  display:flex;flex-direction:column;align-items:center;gap:4px;
}
.inst-stat strong{
  display:block;
  font-family:var(--font-display);
  font-size:2.2rem;font-weight:800;
  color:var(--white);line-height:1;
  letter-spacing:-.04em;
}
.inst-stat span{
  font-size:.78rem;font-weight:500;
  letter-spacing:.06em;text-transform:uppercase;
  color:var(--green);
}
.inst-divider{
  width:1px;height:52px;
  background:rgba(255,255,255,.14);
}

/* ── QUIÉNES SOMOS / MVV ── */
.mvv-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.mvv-card{
  background:rgba(255,255,255,.97);
  padding:38px 32px;
  border-radius:24px;
  border:1px solid rgba(53,178,113,.18);
  box-shadow:0 18px 45px rgba(0,0,0,.07);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  color:var(--ink);
}
.mvv-card:hover{
  transform:translateY(-6px);
  box-shadow:0 24px 60px rgba(53,178,113,.14);
  border-color:rgba(53,178,113,.38);
}
.mvv-icon{
  width:52px;height:52px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--green-soft),#fff);
  border:1px solid rgba(53,178,113,.22);
  color:var(--green-strong);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:22px;
}
.mvv-card h3{font-size:1.4rem;margin-bottom:12px;color:#101817}
.mvv-card p{color:#667085;margin:0;font-size:.96rem;line-height:1.65}

/* Valores ya no tiene fondo oscuro — misma base blanca que Misión y Visión */
.mvv-card-values{
  background:rgba(255,255,255,.97);
  border-color:rgba(53,178,113,.18);
  color:var(--ink);
}
.mvv-card-values h3{color:#101817}
.mvv-card-values .mvv-icon{
  background:linear-gradient(135deg,var(--green-soft),#fff);
  border-color:rgba(53,178,113,.22);
  color:var(--green-strong);
}
.values-list{display:grid;gap:10px;margin-top:4px}
.values-list li{
  display:flex;align-items:center;gap:12px;
  font-family:var(--font-display);font-weight:500;
  color:#3d4d47;
}
.vd{
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(53,178,113,.18);
}

/* ── METODOLOGÍA / Timeline ── */
.timeline{
  position:relative;
  display:grid;gap:36px;
  max-width:900px;margin:0 auto;padding:0;
}
.timeline::before{
  content:'';
  position:absolute;
  top:28px;bottom:28px;left:27px;
  width:2px;
  background:linear-gradient(180deg,var(--green),var(--green-soft));
  border-radius:2px;
}
.phase{
  position:relative;
  display:grid;
  grid-template-columns:60px 1fr;
  gap:24px;
  align-items:flex-start;
}
.phase-marker{
  width:54px;height:54px;border-radius:50%;
  background:var(--white);border:2px solid var(--green);
  color:var(--green-strong);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:1rem;
  z-index:1;box-shadow:0 6px 18px rgba(53,178,113,.2);
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.phase:hover .phase-marker{
  transform:scale(1.08);
  background:var(--green);color:#fff;
}
.phase-card{
  background:var(--white);
  padding:32px;
  border-radius:var(--radius);
  border:1px solid var(--gray-line);
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.phase-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(53,178,113,.4);
}
.phase-card h3{font-size:1.35rem;margin-bottom:8px}
.phase-card>p{color:var(--gray-text);margin:0 0 22px}
.phase-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px 26px;
}
.phase-list li{
  display:flex;align-items:center;gap:10px;
  font-size:.93rem;color:var(--slate);
}
.phase-list li svg{color:var(--green);flex-shrink:0}

/* ── SERVICIOS ── */
.filters{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:8px;margin-bottom:48px;
}
.filter-chip{
  padding:9px 18px;border-radius:999px;
  background:var(--white);border:1px solid var(--gray-line);
  font-family:var(--font-display);font-weight:500;font-size:.88rem;
  color:var(--slate);
  transition:all .25s var(--ease);
}
.filter-chip:hover{border-color:var(--green);color:var(--green-strong)}
.filter-chip.active{background:var(--green-deep);color:var(--white);border-color:var(--green-deep)}

.services-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
  gap:22px;
}
.service-card{
  position:relative;
  display:flex;flex-direction:column;
  padding:28px;
  background:var(--white);
  border:1px solid var(--gray-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-xs);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  overflow:hidden;
}
.service-card::before{
  content:'';
  position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--green);
  transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease);
}
.service-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(53,178,113,.3);
}
.service-card:hover::before,.service-card.is-open::before{transform:scaleX(1)}
.service-card.is-open{border-color:var(--green);box-shadow:var(--shadow-md)}
.service-card.hidden{display:none !important}

.service-head{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:18px;
}
.service-num{
  font-family:var(--font-display);font-weight:700;
  font-size:.76rem;letter-spacing:.08em;
  color:var(--green-strong);
  background:var(--green-soft);
  padding:5px 10px;border-radius:8px;
}
.service-icon{
  width:48px;height:48px;border-radius:12px;
  background:linear-gradient(135deg,var(--green-soft),#fff);
  border:1px solid rgba(53,178,113,.18);
  color:var(--green-strong);
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease);
}
.service-card:hover .service-icon{transform:rotate(-6deg) scale(1.06)}
.service-card h3{font-size:1.15rem;line-height:1.3;margin-bottom:10px}
.service-card>p{color:var(--gray-text);font-size:.93rem;margin:0 0 18px;flex-grow:1}

.service-toggle{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  font-family:var(--font-display);font-weight:600;font-size:.86rem;
  color:var(--green-strong);
  padding:8px 14px;border-radius:8px;
  background:var(--green-soft);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.service-toggle:hover{background:var(--green);color:#fff}
.service-toggle svg{transition:transform .3s var(--ease)}
.service-card.is-open .service-toggle svg{transform:rotate(180deg)}

/* Accordión con grid trick */
.service-detail{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .35s var(--ease),margin-top .3s var(--ease);
  margin-top:0;
}
.service-detail>ul{overflow:hidden;min-height:0}
.service-card.is-open .service-detail{
  grid-template-rows:1fr;
  margin-top:18px;
}
.service-detail li{
  position:relative;
  padding:8px 0 8px 22px;
  font-size:.9rem;color:var(--slate);
  border-top:1px dashed var(--gray-line);
}
.service-detail li:first-child{border-top:0}
.service-detail li::before{
  content:'';
  position:absolute;left:4px;top:17px;
  width:7px;height:7px;border-radius:50%;
  background:var(--green);
}

/* ── POR QUÉ ELEGIRNOS ── */
.why-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(255px,1fr));
  gap:20px;
}
.why-card{
  background:var(--white);
  padding:28px;
  border-radius:var(--radius);
  border:1px solid var(--gray-line);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.why-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(53,178,113,.4);
}
.why-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--green-soft);color:var(--green-strong);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.why-card h3{font-size:1.08rem;margin-bottom:8px}
.why-card p{color:var(--gray-text);font-size:.91rem;margin:0}

/* ── RIESGOS / Sección oscura ── */
.section-dark{position:relative;overflow:hidden}
.dark-glow{
  position:absolute;border-radius:50%;
  filter:blur(120px);pointer-events:none;
}
.dark-glow-1{width:520px;height:520px;top:-120px;right:-100px;background:rgba(53,178,113,.18)}
.dark-glow-2{width:440px;height:440px;bottom:-120px;left:-100px;background:rgba(11,110,71,.22)}

.risk-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:18px;margin-bottom:60px;
  position:relative;
}
.risk-card{
  position:relative;
  padding:26px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.risk-card:hover{
  transform:translateY(-4px);
  background:rgba(53,178,113,.08);
  border-color:rgba(53,178,113,.3);
}
.risk-num{
  display:inline-block;
  font-family:var(--font-display);font-weight:700;font-size:.72rem;
  letter-spacing:.1em;color:var(--green);margin-bottom:10px;
}
.risk-card strong{
  display:block;font-family:var(--font-display);font-size:1.08rem;font-weight:700;
  color:var(--white);margin-bottom:6px;
}
.risk-card p{margin:0;font-size:.88rem;color:rgba(255,255,255,.62)}

.risk-cta{position:relative;text-align:center}
.risk-cta p{
  font-family:var(--font-display);
  font-size:clamp(1.1rem,1.8vw,1.45rem);
  font-weight:600;color:var(--white);
  margin:0 0 22px;letter-spacing:-.01em;
}

/* ── CONTACTO ── */
.section-contact{background:var(--gray-bg)}
.contact-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:40px;
  align-items:start;
}
.contact-form{
  background:var(--white);
  padding:40px;border-radius:var(--radius-lg);
  border:1px solid var(--gray-line);
  box-shadow:var(--shadow-md);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{
  display:block;font-family:var(--font-display);font-weight:600;
  font-size:.85rem;color:var(--slate);margin-bottom:8px;
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;padding:13px 16px;
  border:1.5px solid var(--gray-line);border-radius:12px;
  font-family:var(--font-body);font-size:.96rem;
  color:var(--ink);background:var(--white);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  outline:none;
  border-color:var(--green);
  box-shadow:0 0 0 4px rgba(53,178,113,.15);
}
.form-group input.is-error,
.form-group textarea.is-error,
.form-group select.is-error{
  border-color:#E64A4A;
  box-shadow:0 0 0 4px rgba(230,74,74,.12);
}
.form-group textarea{resize:vertical;min-height:110px}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.form-actions .btn{flex:1 1 auto;min-width:0}

.form-note{
  display:flex;align-items:center;gap:8px;
  font-size:.82rem;color:var(--gray-text);margin:18px 0 0;
}
.form-note svg{color:var(--green)}

.form-feedback{
  margin-top:14px;font-size:.92rem;font-weight:500;
  padding:0 14px;max-height:0;opacity:0;overflow:hidden;
  transition:max-height .3s var(--ease),opacity .3s var(--ease),padding .3s var(--ease);
  border-radius:12px;
}
.form-feedback.show{max-height:80px;opacity:1;padding:12px 14px}
.form-feedback.success{background:var(--green-soft);color:var(--green-strong)}
.form-feedback.error{background:#FDECEC;color:#B83838}

/* honeypot anti-spam */
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.contact-info{
  background:linear-gradient(165deg,var(--green-deep) 0%,#061a13 100%);
  color:var(--white);padding:40px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(53,178,113,.15);
  box-shadow:var(--shadow-md);
}
.contact-info h3{color:var(--white);font-size:1.3rem;margin-bottom:24px}

.contact-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.85);
  transition:color .2s var(--ease);
}
.contact-item:hover{color:var(--white)}
.contact-item:last-of-type{border-bottom:0}

.ci-icon{
  width:38px;height:38px;border-radius:10px;
  background:rgba(53,178,113,.18);color:var(--green);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contact-item strong{
  display:block;font-family:var(--font-display);font-weight:600;
  font-size:.84rem;color:rgba(255,255,255,.6);margin-bottom:4px;
}
.contact-item span,
.contact-item address{font-style:normal;font-size:.95rem;color:var(--white)}

.contact-badge{
  margin-top:24px;padding:14px 18px;border-radius:12px;
  background:rgba(53,178,113,.12);border:1px solid rgba(53,178,113,.3);
  display:flex;align-items:center;gap:10px;
  font-size:.88rem;color:var(--green);
}

/* ── FOOTER ── */
.footer{
  position:relative;
  background-image:
    linear-gradient(rgba(255,255,255,.18),rgba(255,255,255,.22)),
    url('./assets/fondo-footer.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  color:#111111;
  padding:80px 0 28px;
  overflow:hidden;
}
.footer .container{position:relative;z-index:1}

.footer-grid{
  display:grid;
  grid-template-columns:1.6fr repeat(3,1fr);
  gap:40px;
  padding-bottom:50px;
  border-bottom:1px solid rgba(0,0,0,.15);
}
/* Logo: versión oscura para que se vea sobre fondo verde claro */
.footer-logo{height:62px;width:auto;margin-bottom:18px;filter:none}
.footer-tagline{margin:0 0 14px;font-size:.94rem;line-height:1.6;max-width:360px;color:#111111}
.footer-legal{font-size:.8rem;color:#333333;margin:0}
.footer h4{
  color:#0B0B0B;font-size:.92rem;font-weight:700;
  margin-bottom:16px;letter-spacing:.01em;
}
.footer-list{display:grid;gap:10px}
.footer-list li,.footer-list a{font-size:.88rem;color:#111111;line-height:1.5}
.footer-list a:hover{color:#0B2D22;padding-left:4px;transition:padding-left .2s var(--ease),color .2s var(--ease)}

.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;
  gap:12px;padding-top:26px;
  font-size:.8rem;color:#333333;
}
.footer-confidential{
  display:inline-flex;align-items:center;gap:8px;margin:0;
}
.footer-confidential svg{color:var(--green-strong)}

/* ── WhatsApp flotante ── */
.whatsapp-float{
  position:fixed;bottom:24px;right:24px;
  width:60px;height:60px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 32px rgba(37,211,102,.4);
  z-index:90;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.whatsapp-float:hover{
  transform:scale(1.08);
  box-shadow:0 16px 40px rgba(37,211,102,.55);
}
.wa-pulse{
  position:absolute;inset:0;border-radius:50%;
  border:2px solid #25D366;
  animation:waPulse 2s ease-out infinite;
}
@keyframes waPulse{
  0%{transform:scale(1);opacity:.8}
  100%{transform:scale(1.5);opacity:0}
}

/* ── Reveal animations ── */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  will-change:opacity,transform;
}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .hero-container{grid-template-columns:1fr;gap:50px}
  .hero-card{max-width:460px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  /* Institucional: 2 columnas (logo + texto, stats abajo) */
  .inst-container{
    grid-template-columns:auto 1fr;
    grid-template-rows:auto auto;
    row-gap:32px;
  }
  .inst-stats{
    grid-column:1/-1;
    justify-content:center;
  }
}
@media(max-width:880px){
  .section{padding:90px 0}
  .section-header{margin-bottom:48px}
  .mvv-grid{grid-template-columns:1fr}
  .phase-list{grid-template-columns:1fr}
  .timeline{gap:22px}
  .section-institucional{padding:72px 0}

  .hamburger{display:flex}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;
    inset:var(--nav-h) 0 0 0;
    background:rgba(255,255,255,.98);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    flex-direction:column;align-items:stretch;
    justify-content:flex-start;
    padding:28px 24px;gap:2px;
    transform:translateX(100%);
    transition:transform .35s var(--ease);
    overflow-y:auto;
    z-index:99;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{
    padding:14px 16px;font-size:1.02rem;
    border-bottom:1px solid var(--gray-line);border-radius:0;
  }
  .nav-link:last-child{border-bottom:0}
  .nav-cta-mobile{
    display:inline-flex;margin-top:24px;
    width:100%;justify-content:center;
  }
  .nav-link.active::after{display:none}
}
@media(max-width:640px){
  .container{padding:0 16px}
  .hero{padding:calc(var(--nav-h)+40px) 0 60px;min-height:auto}
  .hero-microdata{grid-template-columns:1fr}
  .hero-ctas .btn{flex:1 1 100%}
  .hero-card{padding:24px}
  .hero-card-logo{width:72px;height:72px;top:-26px;right:20px}

  /* Institucional: columna única en móvil */
  .inst-container{
    grid-template-columns:1fr;
    text-align:center;
  }
  .inst-logo{
    width:80px;margin:0 auto;
  }
  .inst-stats{
    flex-wrap:wrap;gap:20px;justify-content:center;
  }
  .inst-stat strong{font-size:1.8rem}
  .inst-quote{font-size:1rem}
  .section-institucional{padding:60px 0}

  .form-row{grid-template-columns:1fr}
  .contact-form,.contact-info{padding:24px}
  .form-actions{flex-direction:column}
  .form-actions .btn{flex:none;width:100%}

  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}

  .timeline{gap:18px}
  .timeline::before{left:21px}
  .phase{grid-template-columns:46px 1fr;gap:12px}
  .phase-marker{width:44px;height:44px;font-size:.88rem}
  .phase-card{padding:22px}

  .whatsapp-float{width:54px;height:54px;bottom:18px;right:18px}
  .filter-chip{padding:7px 14px;font-size:.82rem}
  .service-card{padding:22px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
  .hero-video{display:none}
  .hero-bg{background:var(--green-deep) url('./assets/alpha-fondo.jpg') center/cover no-repeat}
}

/* ── Skip nav ── */
.skip-nav{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-nav:focus{
  position:fixed;left:16px;top:16px;width:auto;height:auto;overflow:visible;
  padding:12px 20px;background:var(--green-deep);color:#fff;border-radius:8px;
  font-family:var(--font-display);font-weight:600;font-size:.9rem;z-index:200;
  text-decoration:none;
}

/* ── Reading progress bar ── */
.progress-bar{
  position:fixed;top:0;left:0;width:100%;height:3px;
  background:var(--green);z-index:200;
  transform:scaleX(0);transform-origin:left;
  pointer-events:none;
  border-radius:0 2px 2px 0;
}

/* ── Back to top ── */
.back-to-top{
  position:fixed;bottom:96px;right:24px;
  width:46px;height:46px;border-radius:50%;
  background:var(--green-deep);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(11,45,34,.3);
  z-index:89;
  opacity:0;pointer-events:none;
  transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
  border:none;cursor:pointer;
  padding:0;
}
.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-to-top:hover{background:var(--green);box-shadow:var(--shadow-glow)}
@media(max-width:640px){
  .back-to-top{bottom:84px;right:18px;width:40px;height:40px}
}

/* ── Focus visible ── */
:focus-visible{
  outline:2px solid var(--green);
  outline-offset:3px;
  border-radius:4px;
}
:focus:not(:focus-visible){outline:none}