/* ==========================================================================
   GROWIN AGENCY — Design tokens (fuente: Brandbook V.8)
   ========================================================================== */

/* Fuentes cargadas vía <link> en el <head> de cada página (preconnect + display=swap) — ver build.py */

:root{
  /* Paleta primaria */
  --black:      #0B0D0B; /* Growin Black — 55% */
  --green:      #4E8F63; /* Growin Green — 25% */
  --mint:       #8FD9A8; /* Signal Mint — 8% acentos */
  --deep-green: #1F3B29; /* sombras / bg alterno */
  --paper:      #F7F6F0; /* Paper White — 12% */

  /* Paleta secundaria — funcional */
  --amber: #D9A441; /* gráficas / warning */
  --red:   #C7503F; /* errores / alertas */
  --gray-400: #9A9990; /* texto secundario sobre negro */
  --gray-600: #6B6B65; /* bordes / metadatos */

  /* Tipografía */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Escala */
  --radius: 4px;
  --max-w: 1180px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;
  --space-7: 140px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
:focus-visible{ outline: 2px solid var(--green); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2{ font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3{ font-size: 1.35rem; }
p{ margin: 0 0 var(--space-2); color: inherit; }
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-2);
}
.eyebrow::before{
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mint);
  display: inline-block;
}

.container{ max-width: var(--max-w); margin: 0 auto; padding: 0 var(--space-3); }
section{ padding: var(--space-6) 0; }
@media (max-width: 720px){ section{ padding: var(--space-5) 0; } }

/* ---------- Secciones por tema (negro base / paper alterno) ---------- */
.on-dark{ background: var(--black); color: var(--paper); }
.on-dark .eyebrow{ color: var(--mint); }
.on-dark p{ color: var(--gray-400); }
.on-deep{ background: var(--deep-green); color: var(--paper); }
.on-deep .eyebrow{ color: var(--mint); }
.on-deep p{ color: #C9D6CC; }
.on-deep .divider{ background: #2c4636; }

/* ---------- Botones ---------- */
.btn{
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.98rem;
  padding: 14px 26px; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--green); color: var(--paper); }
.btn-primary:hover{ background: var(--mint); color: var(--black); }
.btn-outline{ background: transparent; border-color: currentColor; color: inherit; }
.on-dark .btn-outline{ border-color: var(--gray-400); color: var(--paper); }
.on-dark .btn-outline:hover{ border-color: var(--paper); }
.btn-outline:hover{ border-color: var(--black); }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: var(--black);
  border-bottom: 1px solid #1c1f1c;
}
.site-header .container{
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.logo img{ height: 30px; width: auto; }
.logo-text{ display: inline-flex; align-items: center; gap: 10px; }
.logo-dots{ display: inline-flex; align-items: flex-end; gap: 3px; }
.logo-dots span{ display: block; border-radius: 50%; background: var(--green); }
.logo-dots span:nth-child(1){ width: 4px; height: 4px; }
.logo-dots span:nth-child(2){ width: 6px; height: 6px; }
.logo-dots span:nth-child(3){ width: 8px; height: 8px; }
.logo-dots span:nth-child(4){ width: 11px; height: 11px; background: var(--mint); }
.logo-word{ font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--paper); letter-spacing: -0.01em; line-height: 1; }
.logo-agency{ font-family: var(--font-body); font-weight: 500; font-size: 0.62rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: .06em; display: block; margin-top: 2px; }
.footer-top .logo-word{ font-size: 1.1rem; }
.main-nav{ display: flex; align-items: center; gap: var(--space-4); }
.main-nav ul{ list-style: none; display: flex; gap: var(--space-3); margin: 0; padding: 0; }
.main-nav a{
  color: var(--gray-400); font-size: 0.94rem; font-weight: 500;
  padding: 6px 2px; border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ color: var(--paper); border-color: var(--green); }
.header-actions{ display: flex; align-items: center; gap: var(--space-2); }
.lang-switch{ display: flex; gap: 6px; font-family: var(--font-mono); font-size: 0.78rem; }
.lang-switch a{ color: var(--gray-400); padding: 4px 6px; }
.lang-switch a[aria-current="true"]{ color: var(--mint); }
.nav-toggle{ display: none; background: none; border: none; color: var(--paper); font-size: 1.6rem; cursor: pointer; }

@media (max-width: 860px){
  .main-nav ul{
    position: fixed; inset: 62px 0 auto 0; background: var(--black);
    flex-direction: column; padding: var(--space-3); gap: var(--space-2);
    border-bottom: 1px solid #1c1f1c;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .main-nav.open ul{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle{ display: block; }
}

/* ---------- Hero ---------- */
.hero{ background: var(--black); color: var(--paper); padding: 72px 0 var(--space-6); }
.hero .container{ display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-5); align-items: center; }
.hero h1{ color: var(--paper); }
.hero h1 mark{ background: var(--mint); color: var(--black); padding: 0 6px; }
.hero-lede{ font-size: 1.15rem; color: var(--gray-400); max-width: 46ch; }
.hero-cta-row{ display: flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }
.hero-meta{ font-family: var(--font-mono); font-size: 0.8rem; color: var(--gray-400); margin-top: var(--space-3); }
@media (max-width: 900px){ .hero .container{ grid-template-columns: 1fr; } }

/* ---------- Stat/metric dots (símbolo ascendente como motivo) ---------- */
.dot-row{ display: flex; align-items: flex-end; gap: 6px; margin-bottom: var(--space-2); }
.dot-row span{ display: block; border-radius: 50%; background: var(--green); }
.dot-row span:nth-child(1){ width: 6px; height: 6px; }
.dot-row span:nth-child(2){ width: 9px; height: 9px; }
.dot-row span:nth-child(3){ width: 13px; height: 13px; }
.dot-row span:nth-child(4){ width: 18px; height: 18px; background: var(--mint); }

/* ---------- Grid utilities ---------- */
.grid-2{ display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.grid-3{ display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.grid-4{ display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
@media (max-width: 900px){ .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; } }

/* ---------- Cards ---------- */
.card{
  background: #fff; border: 1px solid #E3E1D6; border-radius: var(--radius);
  padding: var(--space-3);
}
.on-dark .card{ background: #12140F; border-color: #22261F; }
.card h3{ margin-bottom: 6px; }
.card .card-num{ font-family: var(--font-mono); color: var(--green); font-size: 0.85rem; margin-bottom: var(--space-1); }
.step-icon{ margin-bottom: var(--space-2); }
.step-icon svg{ width: 30px; height: 30px; }

/* ---------- Elementos "conectados" (hilo de crecimiento) — reemplaza cards sueltas ---------- */
.thread-list{ display: flex; flex-direction: column; }
.thread-item{ display: flex; gap: 18px; }
.thread-marker{ display: flex; flex-direction: column; align-items: center; flex-shrink: 0; padding-top: 6px; }
.thread-dot{ border-radius: 50%; background: var(--mint); flex-shrink: 0; }
.thread-item:nth-child(1) .thread-dot{ width: 7px; height: 7px; }
.thread-item:nth-child(2) .thread-dot{ width: 9px; height: 9px; }
.thread-item:nth-child(3) .thread-dot{ width: 11px; height: 11px; }
.thread-line{ width: 1px; flex: 1; margin-top: 6px; background: linear-gradient(to bottom, var(--green), var(--mint)); opacity: .5; }
.thread-item:last-child .thread-line{ display: none; }
.thread-item-body{ padding-bottom: var(--space-4); }
.thread-item:last-child .thread-item-body{ padding-bottom: 0; }

.process-row{ position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.process-step{ position: relative; z-index: 1; }
.process-dot{ border-radius: 50%; background: var(--paper); border: 2px solid var(--green); margin-bottom: var(--space-2); }
.process-step:nth-child(1) .process-dot{ width: 14px; height: 14px; }
.process-step:nth-child(2) .process-dot{ width: 18px; height: 18px; }
.process-step:nth-child(3) .process-dot{ width: 22px; height: 22px; }
.process-step:nth-child(4) .process-dot{ width: 26px; height: 26px; background: var(--green); border-color: var(--mint); }
.process-step h3{ display: flex; align-items: center; gap: 8px; }
.process-step .step-icon{ margin: 0; }
.process-step .step-icon svg{ width: 20px; height: 20px; }
@media (max-width: 860px){
  .process-row{ grid-template-columns: 1fr; gap: var(--space-4); }
  .process-row::before{ display: none; }
}
.step-icon{ margin-bottom: var(--space-2); }
.step-icon svg{ width: 30px; height: 30px; }

/* ---------- Carrusel de casos en el hero ---------- */
.hero-case-carousel{ position: relative; min-height: 168px; }
.hero-case-slide{
  position: absolute; inset: 0; opacity: 0; pointer-events: none;
  transition: opacity .5s ease;
}
.hero-case-slide.is-active{ opacity: 1; pointer-events: auto; position: relative; }
.carousel-dots{ display: flex; gap: 6px; margin-top: var(--space-2); }
.carousel-dots button{
  width: 6px; height: 6px; border-radius: 50%; border: none; padding: 0;
  background: #2a2e26; cursor: pointer;
}
.carousel-dots button.is-active{ background: var(--mint); width: 16px; border-radius: 3px; transition: width .2s ease; }

/* ---------- Case study module (spec: número grande Space Grotesk + contexto Inter + dato mono) ---------- */
.case-block{
  border: 1px solid #22261F; background: var(--black); color: var(--paper);
  border-radius: var(--radius); padding: var(--space-4);
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-4); align-items: center;
}
.case-block .case-num{ font-family: var(--font-display); font-size: 3.4rem; color: var(--mint); line-height: 1; }
.case-block .case-num-cap{ display: block; font-family: var(--font-mono); font-size: 0.7rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }
.case-block.is-link{ transition: border-color .15s ease, transform .15s ease; cursor: pointer; }
.case-block.is-link:hover{ border-color: var(--mint); transform: translateY(-2px); }
.case-block .case-tag{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--green); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; display: block; }
.case-block .case-metrics{ font-family: var(--font-mono); font-size: 0.82rem; color: var(--gray-400); margin-top: var(--space-2); }
.case-block img{ border-radius: var(--radius); margin-top: var(--space-3); border: 1px solid #22261F; }
@media (max-width: 700px){ .case-block{ grid-template-columns: 1fr; } }

/* ---------- Quote / voice sample ---------- */
.voice-pair{ display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.voice-pair .no{ border-left: 3px solid var(--red); padding-left: var(--space-2); color: var(--gray-600); }
.voice-pair .si{ border-left: 3px solid var(--green); padding-left: var(--space-2); }
@media (max-width: 700px){ .voice-pair{ grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer{ background: var(--black); color: var(--gray-400); padding: var(--space-5) 0 var(--space-3); }
.footer-top{ display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-4); margin-bottom: var(--space-4); }
.footer-top .logo img{ height: 26px; margin-bottom: var(--space-2); }
.site-footer h4{ font-family: var(--font-body); font-size: 0.82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--paper); margin-bottom: var(--space-2); }
.site-footer ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer a:hover{ color: var(--paper); }
.footer-bottom{ border-top: 1px solid #1c1f1c; padding-top: var(--space-3); display: flex; justify-content: space-between; font-size: 0.82rem; font-family: var(--font-mono); flex-wrap: wrap; gap: 8px; }
@media (max-width: 800px){ .footer-top{ grid-template-columns: 1fr 1fr; } }

/* ---------- Forms ---------- */
.form-grid{ display: grid; gap: var(--space-2); max-width: 560px; }
label{ font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; display: block; }
input, textarea, select{
  width: 100%; padding: 12px 14px; border-radius: var(--radius);
  border: 1px solid var(--gray-600); background: #fff; color: var(--black);
  font-family: var(--font-body); font-size: 0.98rem;
}
.on-dark input, .on-dark textarea, .on-dark select{ background: #12140F; color: var(--paper); border-color: #2a2e26; }
input:focus, textarea:focus, select:focus{ border-color: var(--green); }
.form-note{ font-size: 0.82rem; color: var(--gray-600); }
.form-status{ font-family: var(--font-mono); font-size: 0.85rem; margin-top: var(--space-2); }
.form-status.ok{ color: var(--green); }
.form-status.err{ color: var(--red); }

/* ---------- Misc ---------- */
.tag{ font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: .05em; background: var(--deep-green); color: var(--mint); padding: 4px 10px; border-radius: 100px; display: inline-block; }
.divider{ height: 1px; background: #E3E1D6; margin: var(--space-4) 0; }
.on-dark .divider{ background: #1c1f1c; }
.center{ text-align: center; }
.narrow{ max-width: 720px; margin: 0 auto; }
.cta-band{ background: var(--deep-green); color: var(--paper); text-align: center; }
.cta-band h2{ color: var(--paper); }

/* ---------- Abrazar el corte (Opción C): regla delgada exacta en la costura ---------- */
.section-cut{
  border-top: 1px solid rgba(11,13,10,.14);
  padding-top: 44px;
}
.section-cut.on-dark, .section-cut.on-deep, .section-cut.cta-band{
  border-top-color: rgba(247,246,240,.16);
}

/* ---------- Fondo en degradado continuo para Home (evita costuras entre bloques) ---------- */
.home-gradient-bg{
  background: linear-gradient(180deg,
    var(--black) 0%, var(--black) 13%,
    var(--paper) 28%, var(--paper) 50%,
    var(--black) 66%, var(--black) 79%,
    var(--deep-green) 95%, var(--deep-green) 100%
  );
}
.home-gradient-bg .hero,
.home-gradient-bg .on-dark,
.home-gradient-bg .on-deep,
.home-gradient-bg .cta-band{ background: transparent; }

/* ---------- Línea de crecimiento continua (cose las secciones sin degradado) ---------- */
.growth-line-zone{ position: relative; }
.growth-line-segment{
  position: absolute; top: 0; bottom: 0; left: 28px; width: 1px;
  background: rgba(143, 217, 168, .35);
}
.growth-line-zone.zone-light .growth-line-segment{ background: rgba(78, 143, 99, .35); }
.growth-line-dot{
  position: absolute; left: 24px; top: 0; border-radius: 50%;
  background: var(--mint); z-index: 2;
  box-shadow: 0 0 0 5px var(--black);
}
.growth-line-zone.zone-light .growth-line-dot{ background: var(--green); box-shadow: 0 0 0 5px var(--paper); }
.growth-line-zone.zone-deep .growth-line-dot{ background: var(--mint); box-shadow: 0 0 0 5px var(--deep-green); }
.zone-hero .growth-line-dot{ width: 8px; height: 8px; }
.zone-why .growth-line-dot{ width: 12px; height: 12px; }
.zone-how .growth-line-dot{ width: 16px; height: 16px; }
.zone-cta .growth-line-dot{ width: 22px; height: 22px; }
.zone-cta .growth-line-segment{ display: none; }
@media (max-width: 700px){
  .growth-line-segment, .growth-line-dot{ left: 12px; }
}
.skip-link{ position: absolute; left: -999px; top: auto; background: var(--green); color: #fff; padding: 10px; z-index: 200; }
.skip-link:focus{ left: 10px; top: 10px; }

/* ---------- Page loader (símbolo Signal Ascend — spec brandbook: 120ms/punto, ease-out, loop 1.8s) ---------- */
.page-loader{
  position: fixed; inset: 0; z-index: 999;
  background: var(--black);
  display: flex; align-items: flex-end; justify-content: center; gap: 10px;
  padding-bottom: 6vh;
  transition: opacity .35s ease;
}
.page-loader span{ display:block; border-radius:50%; background: var(--green); animation: dotAscend 1.8s ease-out infinite; }
.page-loader span:nth-child(1){ width:10px; height:10px; animation-delay:0s; }
.page-loader span:nth-child(2){ width:16px; height:16px; animation-delay:.12s; }
.page-loader span:nth-child(3){ width:22px; height:22px; animation-delay:.24s; }
.page-loader span:nth-child(4){ width:30px; height:30px; background: var(--mint); animation-delay:.36s; }
@keyframes dotAscend{ 0%,60%,100%{ opacity:.25; transform: scale(.7);} 30%{ opacity:1; transform: scale(1);} }
.page-loader.is-hidden{ opacity: 0; pointer-events: none; }
@media (prefers-reduced-motion: reduce){
  .page-loader{ display: none; }
}
