:root {
      --c-bg:        #F7F7F5;
      --c-white:     #FFFFFF;
      --c-dark:      #191919;
      --c-mid:       #555555;
      --c-light:     #999999;
      --c-border:    #E2E2DE;
      --c-accent:    #D4E600;
      --c-accent-dk: #B8CC00;
      --c-card:      #EFEFEC;
      --f-sans:   'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      --f-serif:  'Playfair Display', Georgia, serif;
      --radius: 6px;
      --t: 0.25s ease;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--f-sans); background: var(--c-bg); color: var(--c-dark); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }

    .container { max-width: 1120px; margin: 0 auto; padding: 0 32px; }

    /* LOGO */
    .logo { display: inline-flex; align-items: baseline; font-size: 1.2rem; line-height: 1; }
    .logo-aha { 
      max-width: 160px;
    }
    .logo-moment { font-family: var(--f-serif); font-weight: 400; color: var(--c-dark); }

    /* HEADER */
    header { position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: 60px; background: rgba(247,247,245,0.93); backdrop-filter: blur(16px); border-bottom: 1px solid var(--c-border); }
    .navbar { display: flex; align-items: center; justify-content: space-between; height: 60px; }
    .navbar-end { display: flex; align-items: center; gap: 2px; }
    .nav-link { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-mid); padding: 6px 12px; border-radius: 4px; transition: color var(--t), background var(--t); }
    .nav-link:hover { color: var(--c-dark); background: var(--c-card); }
    .social-row { display: flex; align-items: center; gap: 4px; margin-left: 16px; padding-left: 16px; border-left: 1px solid var(--c-border); }
    .social-row a { width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; border-radius: 50%; color: var(--c-mid); transition: color var(--t), background var(--t); }
    .social-row a:hover { color: var(--c-dark); background: var(--c-card); }
    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
    .hamburger span { display: block; width: 20px; height: 1.5px; background: var(--c-dark); transition: all var(--t); }

    /* HERO */
    .hero { 
        /*min-height: 100vh; */
        display: flex; 
        align-items: flex-end; 
        padding-top: 60px; 
        background: var(--c-white); 
        position: relative; 
        overflow: hidden; }
    .hero-accent-block { position: absolute; bottom: 0; right: 0; width: 38vw; height: 42vh; background: var(--c-accent); z-index: 0; }
    .hero-accent-block::after { 
      /*content: 'A';*/
      content: url("images/icon-aha-moment.svg");
      display: inline-block;
      width: 150px;
      position: absolute;
      right:0px;
      bottom:-55px;
      font-family: var(--f-sans); 
      font-weight: 900; 
      font-size: clamp(12rem, 22vw, 20rem); 
      line-height: 1; 
      color: rgba(25,25,25,0.1); 
      pointer-events: none; 
      letter-spacing: -0.05em;
    }
    .hero-body { width: 100%; padding: 80px 0 100px; position: relative; z-index: 1; }
    .hero-tagline { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-mid); margin-bottom: 32px; }
    .hero h1 { font-family: var(--f-sans); font-size: clamp(2rem, 4.5vw, 3.6rem); font-weight: 300; line-height: 1.15; letter-spacing: -0.025em; color: var(--c-dark); max-width: 700px; }
    .hero h1 strong { font-weight: 700; }
    .hero-cta { margin-top: 48px; }
    .btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 24px; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; border-radius: var(--radius); transition: all var(--t); cursor: pointer; border: 1.5px solid transparent; }
    .btn-dark { background: var(--c-dark); color: var(--c-white); border-color: var(--c-dark); }
    .btn-dark:hover { background: var(--c-accent); border-color: var(--c-accent); color: var(--c-dark); }
    .btn-accent { background: var(--c-accent); color: var(--c-dark); border-color: var(--c-accent); font-weight: 700; padding: 14px 32px; }
    .btn-accent:hover { background: var(--c-accent-dk); border-color: var(--c-accent-dk); }
    .aha-label { display: inline-flex; align-items: center; justify-content: center; background: var(--c-accent); color: var(--c-dark); font-weight: 800; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 10px 20px; border-radius: 999px; position: fixed; bottom: 100px; right: 32px; z-index: 99; transition: transform var(--t), box-shadow var(--t); box-shadow: 0 4px 20px rgba(212,230,0,0.4); }
    .aha-label:hover { transform: scale(1.05) translateY(-2px); box-shadow: 0 8px 28px rgba(212,230,0,0.5); }

    /* SECTIONS */
    .section { padding: 96px 0; }
    .section-label { font-size: 0.63rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-light); margin-bottom: 48px; display: flex; align-items: center; gap: 12px; }
    .section-label::after { content: ''; display: block; flex: 1; height: 1px; background: var(--c-border); }

    /* SERVICES */
    #services { background: var(--c-bg); border-top: 1px solid var(--c-border); }
    .services-intro { max-width: 580px; margin-bottom: 64px; }
    .services-intro h2 { font-family: var(--f-sans); font-size: clamp(1.4rem, 2.8vw, 2rem); font-weight: 300; line-height: 1.3; letter-spacing: -0.02em; }
    .services-intro h2 strong { font-weight: 700; }
    .services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--c-border); border: 1px solid var(--c-border); }
    .service-card { background: var(--c-bg); padding: 32px 28px; transition: background var(--t); }
    .service-card:hover { background: var(--c-white); }
    .service-num { font-size: 0.63rem; font-weight: 600; letter-spacing: 0.1em; color: var(--c-light); margin-bottom: 20px; }
    .service-card h4 { font-size: 0.95rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 10px; }
    .service-card p { font-size: 0.82rem; font-weight: 300; line-height: 1.7; color: var(--c-mid); margin-bottom: 20px; }
    .expand-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 0.68rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-mid); transition: color var(--t); padding: 0; }
    .expand-btn:hover { color: var(--c-dark); }
    .expand-icon { width: 18px; height: 18px; border: 1px solid var(--c-border); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background var(--t), border-color var(--t); }
    .expand-btn:hover .expand-icon { background: var(--c-accent); border-color: var(--c-accent); }
    .expand-icon svg { transition: transform var(--t); }
    .expand-btn.open .expand-icon svg { transform: rotate(45deg); }
    .hide-info { overflow: hidden; max-height: 0; transition: max-height 0.4s ease, opacity 0.3s ease; opacity: 0; }
    .hide-info.expanded { max-height: 400px; opacity: 1; }
    .hide-info ul { padding-top: 14px; display: flex; flex-direction: column; gap: 5px; }
    .hide-info ul li { font-size: 0.77rem; font-weight: 300; color: var(--c-mid); padding-left: 14px; position: relative; line-height: 1.5; }
    .hide-info ul li::before { content: '—'; position: absolute; left: 0; font-size: 0.65rem; color: var(--c-accent-dk); }

    /* WE ARE AHA */
    #we-are-aha { background: var(--c-dark); color: var(--c-white); position: relative; overflow: hidden; }
    .aha-yellow-strip { position: absolute; top: 0; right: 0; width: 32%; height: 100%; background: var(--c-accent); display: flex; align-items: flex-end; padding: 40px; }
    .aha-yellow-strip .tagline-vertical { font-size: 0.63rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-dark); writing-mode: vertical-rl; transform: rotate(180deg); }
    .aha-content { max-width: 60%; position: relative; z-index: 1; }
    #we-are-aha .section-label { color: rgba(255,255,255,0.3); }
    #we-are-aha .section-label::after { background: rgba(255,255,255,0.1); }
    #we-are-aha h3 { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-accent); margin-bottom: 24px; }
    #we-are-aha h2 { font-family: var(--f-sans); font-size: clamp(1.5rem, 3vw, 2.4rem); font-weight: 300; line-height: 1.3; letter-spacing: -0.02em; color: var(--c-white); }
    #we-are-aha h2 strong { font-weight: 700; }
    .footer-copy { margin-top: 64px; font-size: 0.72rem; font-weight: 300; color: rgba(255,255,255,0.3); letter-spacing: 0.04em; }

    /* CONTACT */
    #contact { background: var(--c-white); border-top: 1px solid var(--c-border); }
    .form-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
    .form-intro h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); font-weight: 300; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 20px; }
    .form-intro h2 strong { font-weight: 800; }
    .form-intro p { font-size: 0.85rem; font-weight: 300; line-height: 1.7; color: var(--c-mid); }
    .form-intro p a {font-weight: 700;text-decoration: underline;}
    .field { margin-bottom: 18px; }
    .label { display: block; font-size: 0.63rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-light); margin-bottom: 6px; }
    .input, .textarea, select { width: 100%; padding: 11px 0; border: none; border-bottom: 1.5px solid var(--c-border); background: transparent; font-family: var(--f-sans); font-size: 0.9rem; font-weight: 400; color: var(--c-dark); outline: none; border-radius: 0; transition: border-color var(--t); appearance: none; }
    .input:focus, .textarea:focus, select:focus { border-bottom-color: var(--c-dark); }
    .textarea { min-height: 100px; resize: vertical; }
    .select-wrap { position: relative; }
    .select-wrap::after { content: '↓'; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 0.75rem; color: var(--c-light); pointer-events: none; }
    .form-submit { margin-top: 32px; }

    /* WHATSAPP */
    .whatsapp-fab { position: fixed; bottom: 32px; right: 32px; z-index: 99; }
    .whatsapp-fab a { width: 50px; height: 50px; background: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; box-shadow: 0 4px 16px rgba(37,211,102,0.38); transition: transform var(--t); }
    .whatsapp-fab a:hover { transform: scale(1.08); }

    /* REVEAL */
    .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.65s ease, transform 0.65s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    .reveal-d1 { transition-delay: 0.1s; }
    .reveal-d2 { transition-delay: 0.2s; }
    .reveal-d3 { transition-delay: 0.3s; }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .services-grid { grid-template-columns: repeat(2,1fr); }
      .form-wrap { grid-template-columns: 1fr; gap: 48px; }
      .aha-yellow-strip { display: none; }
      .aha-content { max-width: 100%; }
    }
    @media (max-width: 640px) {
      .services-grid { grid-template-columns: 1fr; }
      .navbar-end { display: none; }
      .navbar-end.open { display: flex; flex-direction: column; align-items: flex-start; position: fixed; top: 60px; left: 0; right: 0; background: var(--c-white); padding: 24px 32px; border-bottom: 1px solid var(--c-border); gap: 4px; z-index: 199; }
      .hamburger { display: flex; }
      .social-row { border-left: none; padding-left: 0; margin-top: 12px; }
      .hero-accent-block { width: 55vw; height: 28vh; }
      .aha-label { bottom: 90px; }
    }