:root{
    --color-black:        #0a0a0c;
    --color-surface:      #17171a;
    --color-surface-alt:  #1e1e22;
    --color-border:       rgba(255,255,255,0.10);
    --color-border-strong:rgba(255,255,255,0.20);

    --color-white:        #ffffff;
    --color-text:         #f2f2f4;
    --color-text-muted:   #a6a6ae;
    --color-text-faint:   #707078;

    --color-cyan:         #4fb0e0;
    --color-cyan-soft:    rgba(79,176,224,0.12);
    --color-cyan-border:  rgba(79,176,224,0.35);

    --color-orange:       #e08a3e;
    --color-orange-hover: #c97930;
    --color-orange-soft:  rgba(224,138,62,0.12);

    --color-on-orange:    #1a1206;

    --font-base: 'Inter', -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;

    --fw-regular:  400;
    --fw-medium:   500;
    --fw-semibold: 600;
    --fw-bold:     700;
    --fw-black:    800;
    --fs-xs:  clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
    --fs-sm:  clamp(0.875rem, 0.84rem + 0.2vw, 0.9375rem);
    --fs-base:clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
    --fs-md:  clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
    --fs-xl:  clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
    --fs-2xl: clamp(2.1rem, 1.6rem + 2.4vw, 3rem);

    --lh-tight:   1.15;
    --lh-normal:  1.55;
    --lh-relaxed: 1.7;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;

    --container-max: 1400px;
    --container-pad: clamp(1.25rem, 4vw, 3rem);
    --header-height: 4.5rem;
    --radius-sm:   0.5rem;
    --radius-md:   0.875rem;
    --radius-full: 999px;
    --border-w:    1px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.18s var(--ease);
    --transition-base: 0.3s var(--ease);

    --btn-height: 3.25rem;
  }

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

  html, body{ height: 100%; }

  body{
    margin: 0;
    background:
      radial-gradient(circle at 8% 12%, var(--color-cyan-soft), transparent 40%),
      radial-gradient(circle at 94% 88%, var(--color-cyan-soft), transparent 55%),
      var(--color-black);
    color: var(--color-text);
    font-family: var(--font-base);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    -webkit-font-smoothing: antialiased;

    /* Estructura vertical de la landing */
    display: grid;
    grid-template-rows: var(--header-height) 1fr auto;
    min-height: 100vh;   /* fallback para navegadores sin soporte dvh */
    min-height: 100dvh;  /* alto real de viewport en mobile (barra de URL incluida) */
  }

  h1{
    font-family: var(--font-base);
    color: var(--color-white);
    line-height: var(--lh-tight);
    margin: 0;
  }

  p{ margin: 0; }
  a{ color: inherit; }
  ul{ margin: 0; padding: 0; list-style: none; }
  svg{ display: block; flex-shrink: 0; }

  :focus-visible{
    outline: 2px solid var(--color-cyan);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
  }

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

  .container{
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
    width: 100%;
  }

  .site-header{
    display: flex;
    align-items: center;
    border-bottom: var(--border-w) solid var(--color-border);
  }

  .site-header .container{
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .brand{ text-decoration: none; }

  .brand-name{
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    letter-spacing: -0.01em;
    color: var(--color-white);
  }

  .brand-name span{ color: var(--color-orange); }

  .header-note{
    font-size: var(--fs-xs);
    color: var(--color-text-faint);
    display: none;
  }

  @media (min-width: 640px){
    .header-note{ display: block; }
  }

  .card-main{ display: block; }

  .hero-layout{
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-7);
    align-items: center;
    padding-block: clamp(2.5rem, 6vw, 6rem);
  }

  .card-content{
    max-width: 46rem;
  }

  .eyebrow{
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-orange);
    margin-bottom: var(--space-5);
  }

  .eyebrow::before{
    content: "";
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-orange);
  }

  .card-content h1{
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-5);
  }

  .card-content h1 .accent{
    display: block;
    color: var(--color-cyan);
  }

  .card-content .lead{
    font-size: var(--fs-md);
    color: var(--color-text-muted);
    line-height: var(--lh-relaxed);
    max-width: 38rem;
    margin-bottom: var(--space-6);
  }

  .pain-list{
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-7);
  }

  .pain-list li{
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--color-text);
    background: var(--color-surface);
    border: var(--border-w) solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-4);
  }

  .pain-list svg{
    width: 0.875rem;
    height: 0.875rem;
    stroke: var(--color-orange);
  }

  .actions{
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
  }

  .btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: var(--btn-height);
    padding-inline: var(--space-6);
    border-radius: var(--radius-md);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-base);
    text-decoration: none;
    border: var(--border-w) solid transparent;
    cursor: pointer;
    transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-fast);
  }

  .btn:active{ transform: translateY(1px); }

  .btn--primary{ background: var(--color-orange); color: var(--color-on-orange); }
  .btn--primary:hover{ background: var(--color-orange-hover); }

  .btn--secondary{
    background: transparent;
    border-color: var(--color-border-strong);
    color: var(--color-text);
  }

  .btn--secondary:hover{
    border-color: var(--color-cyan-border);
    background: var(--color-cyan-soft);
  }

  .trust-strip{
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-6);
    padding-top: var(--space-5);
    border-top: var(--border-w) solid var(--color-border);
  }

  .trust-strip .item{
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
  }

  .trust-strip .item strong{
    color: var(--color-white);
    font-weight: var(--fw-bold);
  }

  .hero-social-link{
    color: var(--color-cyan);
    text-decoration: none;
  }

  .hero-social-link:hover{ text-decoration: underline; }

  .hero-local-panel{
    display: none;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    background:
      linear-gradient(
        145deg,
        rgba(79,176,224,0.10),
        rgba(23,23,26,0.96) 42%
      );
    border: var(--border-w) solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 1.5rem 3.5rem rgba(0,0,0,0.28);
  }

  .hero-local-panel .eyebrow{
    margin-bottom: var(--space-3);
  }

  .hero-local-panel h2{
    margin: 0;
    max-width: 32rem;
    color: var(--color-white);
    font-size: var(--fs-xl);
    line-height: var(--lh-tight);
    letter-spacing: -0.02em;
  }

  .hero-local-panel > p{
    margin-top: var(--space-3);
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
  }

  .hero-local-grid{
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-6);
  }

  .hero-local-card{
    min-height: 10rem;
    padding: var(--space-5);
    background: rgba(10,10,12,0.50);
    border: var(--border-w) solid var(--color-border);
    border-radius: var(--radius-sm);
  }

  .hero-local-card span{
    display: block;
    margin-bottom: var(--space-4);
    color: var(--color-orange);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.12em;
  }

  .hero-local-card h3{
    margin: 0 0 var(--space-2);
    color: var(--color-white);
    font-size: var(--fs-base);
    line-height: 1.3;
  }

  .hero-local-card p{
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
    line-height: 1.55;
  }

  .hero-local-note{
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: var(--border-w) solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
    line-height: 1.55;
  }

  .hero-local-note svg{
    width: 1.25rem;
    height: 1.25rem;
    flex: 0 0 auto;
    stroke: var(--color-cyan);
  }

  @media (min-width: 1000px){
    .hero-layout{
      grid-template-columns: minmax(0, 0.95fr) minmax(30rem, 1.05fr);
      gap: clamp(3rem, 6vw, 6rem);
    }

    .hero-local-panel{
      display: block;
    }
  }

  .commune-introduction,
  .commune-situations,
  .commune-faq{
    width: min(calc(100% - (2 * var(--container-pad))), var(--container-max));
    margin-inline: auto;
    padding-block: clamp(3.5rem, 7vw, 6.5rem);
    border-top: var(--border-w) solid var(--color-border);
  }

  .commune-introduction{
    max-width: 62rem;
    display: grid;
    gap: var(--space-5);
  }

  .commune-introduction p,
  .situation-card p,
  .faq-answer p{
    color: var(--color-text-muted);
    line-height: var(--lh-relaxed);
  }

  .section-heading{
    max-width: 52rem;
    margin-bottom: var(--space-7);
  }

  .section-heading .eyebrow{ margin-bottom: var(--space-4); }

  .section-heading h2{
    margin: 0;
    color: var(--color-white);
    font-size: var(--fs-xl);
    line-height: var(--lh-tight);
    letter-spacing: -0.02em;
  }

  .situations-grid{
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .situation-card{
    padding: clamp(1.5rem, 3vw, 2.25rem);
    background: var(--color-surface);
    border: var(--border-w) solid var(--color-border);
    border-radius: var(--radius-md);
  }

  .situation-number{
    display: block;
    margin-bottom: var(--space-5);
    color: var(--color-orange);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.12em;
  }

  .situation-card h3{
    margin: 0 0 var(--space-3);
    color: var(--color-white);
    font-size: var(--fs-md);
    line-height: 1.3;
  }

  .faq-list{
    display: grid;
    gap: var(--space-3);
    max-width: 62rem;
  }

  .faq-item{
    background: var(--color-surface);
    border: var(--border-w) solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .faq-item summary{
    padding: var(--space-5);
    color: var(--color-white);
    font-weight: var(--fw-semibold);
    cursor: pointer;
  }

  .faq-item[open]{ border-color: var(--color-cyan-border); }
  .faq-answer{ padding: 0 var(--space-5) var(--space-5); }

  @media (max-width: 720px){
    .situations-grid{ grid-template-columns: 1fr; }
    .actions{ flex-direction: column; }
    .btn{ width: 100%; }
  }


  .site-footer{
    padding-block: var(--space-5);
    background: var(--color-surface);
    border-top: var(--border-w) solid var(--color-border);
  }

  .site-footer .container{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
  }

  .footer-brand{
    display: grid;
    gap: var(--space-1);
  }

  .footer-brand-name{
    width: fit-content;
    color: var(--color-white);
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    letter-spacing: -0.01em;
    text-decoration: none;
  }

  .footer-brand-name span{
    color: var(--color-orange);
  }

  .footer-description{
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
  }

  .footer-copyright{
    font-size: var(--fs-xs);
    color: var(--color-text-faint);
  }

  .footer-actions{
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    flex-wrap: wrap;
  }

  .footer-whatsapp,
  .footer-home-link{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding-inline: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    text-decoration: none;
    transition:
      color var(--transition-fast),
      background var(--transition-fast),
      border-color var(--transition-fast);
  }

  .footer-whatsapp{
    color: var(--color-on-orange);
    background: var(--color-orange);
  }

  .footer-whatsapp:hover{
    background: var(--color-orange-hover);
  }

  .footer-home-link{
    color: var(--color-cyan);
    border: var(--border-w) solid var(--color-border);
  }

  .footer-home-link:hover{
    color: var(--color-white);
    border-color: var(--color-cyan-border);
    background: var(--color-cyan-soft);
  }

  @media (max-width: 720px){
    .site-footer{
      padding-block: var(--space-6);
    }

    .site-footer .container{
      align-items: stretch;
      flex-direction: column;
    }

    .footer-actions{
      display: grid;
      grid-template-columns: 1fr;
    }

    .footer-whatsapp,
    .footer-home-link{
      width: 100%;
    }
  }