:root {
    --bg: #3464d6;
    --bg-2: #4274de;
    --card: #5083e3;
    --card-2: #5d8de8;
    --text: #ecf2ff;
    --muted: #cad9ed;
    --brand: #87afef;        /* light sky blue */
    --brand-2: #3262c8;      /* royal blue */
    --brand-3: #aac5f5;      /* highlight blue */
    --accent: #6a9ae8;
    --border: rgba(255,240,255,0.20);
    --shadow: 0 20px 60px rgba(0,0,0,0.40);
  }

  * { box-sizing: border-box; }

  html, body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  a { color: inherit; text-decoration: none; }

  .container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* HEADER */
  header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: rgba(52, 100, 214, 0.88);
    border-bottom: 1px solid var(--border);
  }

  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Outfit', sans-serif;
    font-weight: 200;
    font-size: 34px;
    letter-spacing: 2px;
    color: var(--brand);
  }

  .logo svg, .logo img {
    width: 68px;
    height: 68px;
    flex-shrink: 0;
    mix-blend-mode: screen;
  }

  footer .logo svg, footer .logo img { width: 36px; height: 36px; }
  footer .logo { font-size: 22px; gap: 8px; }

  .logo .domain { font-size: 0.55em; letter-spacing: 0.5px; }

  .logo-text {
    background: linear-gradient(135deg, #dae5ff 0%, var(--brand-3) 40%, var(--brand) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  nav ul {
    display: flex;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  nav a {
    color: var(--muted);
    font-size: 15px;
    transition: color 0.2s;
  }

  nav a:hover { color: var(--text); }

  .cta-btn {
    display: inline-block;
    padding: 12px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 0;
    cursor: pointer;
  }

  .cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 35px rgba(93,93,255,0.45);
  }

  .cta-btn.outline {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(196,192,245,0.2);
  }

  .cta-btn.outline:hover {
    background: rgba(141,140,254,0.06);
    box-shadow: none;
  }

  .nav-cta { display: flex; align-items: center; gap: 12px; }

  /* Hamburger button (paslėptas desktope, rodomas mobiliame) */
  .menu-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: 10px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-right: 4px;
    position: relative;
    z-index: 60;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }
  .menu-toggle span { pointer-events: none; }
  .menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
  }
  .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
  .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Slide-out meniu */
  .mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 100;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.28s ease, visibility 0.28s ease;
  }
  .mobile-menu.is-open { visibility: visible; opacity: 1; }
  .mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8,18,48,0.55);
    backdrop-filter: blur(4px);
  }
  .mobile-menu-panel {
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: min(80vw, 320px);
    background: var(--bg-2);
    border-right: 1px solid var(--border);
    padding: 64px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.22,0.61,0.36,1);
    box-shadow: 8px 0 30px rgba(0,0,0,0.35);
  }
  .mobile-menu.is-open .mobile-menu-panel { transform: translateX(0); }
  .mobile-menu-panel ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .mobile-menu-panel ul a {
    display: block;
    padding: 14px 8px;
    font-size: 17px;
    color: var(--text);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: color 0.2s;
  }
  .mobile-menu-panel ul a:hover { color: var(--brand-3); }
  .menu-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
  }

  /* HERO */
  .hero {
    position: relative;
    padding: 56px 0 48px;
    overflow: hidden;
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--bg);
    pointer-events: none;
    z-index: -1;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    position: relative;
  }

  .hero-grid > div:first-child {
    max-width: 100%;
    margin: 0;
    text-align: left;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(132,137,224,0.06);
    color: var(--brand-3);
    font-size: 13px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    font-weight: 500;
  }

  .eyebrow .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px 2px var(--brand-3), 0 0 0 0 rgba(158,151,246,0.7);
    animation: pulse 1.6s ease-in-out infinite;
  }

  @keyframes pulse {
    0%   { opacity: 1; transform: scale(1);    box-shadow: 0 0 8px 2px var(--brand-3), 0 0 0 0 rgba(158,151,246,0.7); }
    50%  { opacity: 1; transform: scale(1.25); box-shadow: 0 0 16px 6px var(--brand-3), 0 0 0 10px rgba(158,151,246,0); }
    100% { opacity: 1; transform: scale(1);    box-shadow: 0 0 8px 2px var(--brand-3), 0 0 0 0 rgba(158,151,246,0.7); }
  }

  h1 {
    font-size: clamp(36px, 5vw, 56px);
    line-height: 1.1;
    margin: 18px 0 18px;
    letter-spacing: -0.5px;
    font-weight: 700;
  }

  h1 .grad {
    background: linear-gradient(135deg, var(--brand-3) 0%, var(--brand) 50%, var(--brand-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero p.lead {
    font-size: 18px;
    color: var(--muted);
    max-width: 540px;
    margin: 0 0 32px;
  }

  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: flex-start;
  }


  /* HERO VISUAL */
  .hero-visual {
    position: relative;
    aspect-ratio: 2280 / 2700;
    max-width: 100%;
    margin: 0;
    min-width: 0;
  }

  .hero-waves-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 10;
  }
  .hero-waves-overlay svg {
    width: 100%;
    height: 100%;
  }
  .hero-visual svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 30px 60px rgba(93,93,255,0.35));
    position: relative;
    z-index: 1;
  }
  .hero-visual iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: var(--bg);
  }

  /* SECTIONS */
  section {
    padding: 40px 0;
    position: relative;
  }

  /* Scroll-reveal: sekcijos paslepiamos, atsiranda kai įeina į ekraną */
  .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.22, 0.61, 0.36, 1),
                transform 0.9s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: opacity, transform;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
  }

  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
  }

  .section-head h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    margin: 12px 0 14px;
    letter-spacing: -0.3px;
    font-weight: 700;
  }

  .section-head p {
    color: var(--muted);
    font-size: 17px;
    margin: 0;
  }

  /* SERVICES */
  .services {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
  }

  .service {
    padding: 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: transform 0.25s, border-color 0.25s, background 0.25s;
    position: relative;
    overflow: hidden;
  }

  .service::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand) 0%, var(--brand-2) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
  }

  .service:hover {
    transform: translateY(-4px);
    border-color: rgba(132,137,224,0.35);
    background: var(--card-2);
  }

  .service:hover::before { transform: scaleX(1); }

  .service-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(132,137,224,0.14);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
  }

  .service h3 {
    font-size: 19px;
    margin: 0 0 10px;
    font-weight: 600;
  }

  .service p {
    color: var(--muted);
    margin: 0;
    font-size: 15px;
  }

  /* ADDITIONAL */
  .additional {
    background: var(--bg-2);
  }

  .additional-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
  }

  .add-card {
    padding: 32px;
    background: linear-gradient(160deg, var(--card) 0%, var(--card-2) 100%);
    border: 1px solid var(--border);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
  }

  .add-card .badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(93,93,255,0.18);
    color: var(--brand-3);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    margin-bottom: 14px;
  }

  .add-card h3 {
    font-size: 22px;
    margin: 0 0 12px;
    font-weight: 600;
  }

  .add-card p {
    color: var(--muted);
    margin: 0 0 18px;
  }

  .add-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .add-card li {
    padding: 8px 0;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
  }

  .add-card li::before {
    content: "";
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b85e0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
    background-repeat: no-repeat;
    background-position: center;
  }

  /* PROCESS */
  .process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    counter-reset: step;
  }

  .step {
    padding: 28px 24px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    position: relative;
  }

  .step::before {
    counter-increment: step;
    content: counter(step, decimal);
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 36px;
    font-weight: 700;
    color: rgba(220,215,255,0.30);
    letter-spacing: -1px;
    font-family: 'Outfit', sans-serif;
    font-weight: 200;
  }

  .step h4 {
    font-size: 17px;
    margin: 0 0 8px;
    padding-right: 60px;
    font-weight: 600;
  }

  .step p {
    color: var(--muted);
    margin: 0;
    font-size: 14px;
  }

  /* CTA SECTION */
  .cta-section {
    padding: 36px 0;
    background: linear-gradient(135deg, rgba(132,137,224,0.10), rgba(63,65,181,0.10));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .cta-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
  }

  .cta-box h2 {
    font-size: clamp(28px, 3.5vw, 38px);
    margin: 0 0 14px;
    font-weight: 700;
  }

  .cta-box p {
    color: var(--muted);
    font-size: 17px;
    margin: 0 0 28px;
  }

  .cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* CONTACT */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
  }

  .contact-info h3 {
    font-size: 22px;
    margin: 0 0 14px;
    font-weight: 600;
  }

  .contact-info > p {
    color: var(--muted);
    margin: 0 0 28px;
  }

  .contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .contact-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .contact-list li:last-child { border-bottom: 0; }

  .contact-list .icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(132,137,224,0.14);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .contact-list .label {
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
  }

  .contact-list .value {
    font-size: 16px;
    color: var(--text);
    margin-top: 2px;
  }

  form {
    background: var(--card);
    padding: 32px;
    border-radius: 18px;
    border: 1px solid var(--border);
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
  }

  .field { margin-bottom: 14px; }

  label {
    display: block;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 6px;
  }

  input, textarea, select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.2s;
  }

  input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--brand);
  }

  textarea { min-height: 110px; resize: vertical; }

  /* Šviesesnis placeholder tekstas formos laukuose */
  input::placeholder,
  textarea::placeholder {
    color: rgba(236, 242, 255, 0.7);
    opacity: 1;
  }
  input::-webkit-input-placeholder,
  textarea::-webkit-input-placeholder { color: rgba(236, 242, 255, 0.7); }
  input::-moz-placeholder,
  textarea::-moz-placeholder { color: rgba(236, 242, 255, 0.7); opacity: 1; }

  form button {
    width: 100%;
    padding: 14px;
    margin-top: 6px;
    border: 0;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
  }

  form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 35px rgba(93,93,255,0.45);
  }

  /* FAQ */
  .faq-list {
    max-width: 820px;
    margin: 0 auto;
  }

  details {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    overflow: hidden;
  }

  summary {
    cursor: pointer;
    padding: 20px 22px;
    font-size: 16px;
    font-weight: 500;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
  }

  summary::-webkit-details-marker { display: none; }

  summary::after {
    content: "+";
    font-size: 24px;
    color: var(--brand);
    transition: transform 0.2s;
  }

  details[open] summary::after { transform: rotate(45deg); }

  details p {
    padding: 0 22px 20px;
    color: var(--muted);
    margin: 0;
  }

  #duk { background: linear-gradient(180deg, var(--bg-blue-2) 0%, var(--bg-blue-3) 100%); }

  /* FOOTER */
  footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border);
    background: var(--bg-2);
  }

  .footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
  }

  footer .muted { color: var(--muted); font-size: 14px; }

  /* RESPONSIVE */
  @media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-grid > div:first-child { text-align: left; }
    .hero-actions { justify-content: flex-start; }
    .hero-stats { justify-content: flex-start; }
    /* Apriboti paveikslėlio dydį, kad sumažinus puslapį neišsiplėstų į visą plotą */
    .hero-visual {
      aspect-ratio: 2280 / 2700;
      max-width: 520px;
      width: 100%;
      margin: 0 auto;
    }

    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    nav ul { display: none; }
    .menu-toggle { display: flex; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }

    /* Logotipas tik šalia hamburger mygtuko, CTA – į dešinę */
    .nav .logo { margin-right: auto; }

    /* Logotipas mažėja kartu su lango pločiu */
    .logo { font-size: 26px; gap: 10px; letter-spacing: 1.4px; }
    .logo svg, .logo img { width: 50px; height: 50px; }
  }

  @media (max-width: 600px) {
    .logo { font-size: 20px; gap: 8px; letter-spacing: 1px; }
    .logo svg, .logo img { width: 40px; height: 40px; }
    .cta-btn { padding: 10px 16px; font-size: 13px; }

    /* Pradedam laipsniškai mažinti visą tekstą */
    body { font-size: 15px; }
    .hero p.lead { font-size: 16px; }
    .section-head p { font-size: 15px; }
    .stat strong { font-size: 24px; }
    .stat span { font-size: 12px; }
    nav a { font-size: 14px; }
  }

  @media (max-width: 420px) {
    .logo { font-size: 17px; gap: 6px; letter-spacing: 0.8px; }
    .logo svg, .logo img { width: 34px; height: 34px; }
    .cta-btn { padding: 9px 14px; font-size: 12px; }

    /* Paveikslėlis dar šiek tiek mažesnis labai mažuose ekranuose */
    .hero-visual { max-width: 380px; }

    /* Dar šiek tiek mažesnis tekstas labai mažuose ekranuose */
    body { font-size: 14px; }
    .hero p.lead { font-size: 14.5px; }
    .section-head p { font-size: 14px; }
    .eyebrow { font-size: 11px; padding: 5px 11px; }
    .stat strong { font-size: 22px; }
    .stat span { font-size: 11.5px; }
    input, textarea, select { font-size: 14px; padding: 10px 12px; }
    .mobile-menu-panel ul a { font-size: 15px; }
  }


        /* Animated rainbow signal waves */
        @keyframes ripple-wave {
          0%   { opacity: 0; }
          12%  { opacity: 1; }
          75%  { opacity: 0; }
          100% { opacity: 0; }
        }
        .sv-w1 { animation: ripple-wave 3.6s ease-out infinite 0s; }
        .sv-w2 { animation: ripple-wave 3.6s ease-out infinite 0.72s; }
        .sv-w3 { animation: ripple-wave 3.6s ease-out infinite 1.44s; }
        .sv-w4 { animation: ripple-wave 3.6s ease-out infinite 2.16s; }
        .sv-w5 { animation: ripple-wave 3.6s ease-out infinite 2.88s; }
        /* Beam packet flow */
        
        /* WiFi house ripple */
        @keyframes wifi-ripple {
          0%   { opacity: 0; }
          15%  { opacity: 1; }
          80%  { opacity: 0; }
          100% { opacity: 0; }
        }
        .wf-1 { animation: wifi-ripple 2.8s ease-out infinite 0s; }
        .wf-2 { animation: wifi-ripple 2.8s ease-out infinite 0.7s; }
        .wf-3 { animation: wifi-ripple 2.8s ease-out infinite 1.4s; }
        .wf-4 { animation: wifi-ripple 2.8s ease-out infinite 2.1s; }
        /* Tower orb blink */
        @keyframes orb-blink {
          0%, 32%        { opacity: 1; }
          36%            { opacity: 0.04; }
          40%            { opacity: 1; }
          44%            { opacity: 0.04; }
          48%, 100%      { opacity: 1; }
        }
        @keyframes orb-glow {
          0%, 32%   { r: 20; opacity: 0.35; }
          36%       { r: 24; opacity: 0.55; }
          40%       { r: 20; opacity: 0.35; }
          44%       { r: 24; opacity: 0.55; }
          48%, 100% { r: 20; opacity: 0.35; }
        }
        .tower-orb { animation: orb-blink 3.2s ease-in-out infinite; }
        .tower-ring { animation: orb-glow  3.2s ease-in-out infinite; }
        @keyframes pkt-up {
          from { stroke-dashoffset: 20; } to { stroke-dashoffset: 0; }
        }
        @keyframes pkt-dn {
          from { stroke-dashoffset: 0; } to { stroke-dashoffset: 20; }
        }
        .b-up { stroke-dasharray: 6 14; animation: pkt-up  0.75s linear infinite; }
        .b-dn { stroke-dasharray: 6 14; animation: pkt-dn  0.75s linear infinite 0.37s; }
              @keyframes tower-pulse {
          0%,100% { opacity: 1; }
          38%     { opacity: 0.04; }
          50%     { opacity: 1; }
          62%     { opacity: 0.04; }
          74%     { opacity: 1; }
        }
        @keyframes tower-halo-anim {
          0%,100% { r: 7; opacity: 0.30; }
          38%     { r: 4; opacity: 0.00; }
          50%     { r: 11; opacity: 0.50; }
          62%     { r: 4; opacity: 0.00; }
          74%     { r: 8; opacity: 0.35; }
        }
        .tower-tip-dot  { animation: tower-pulse     1.6s ease-in-out infinite; }
        .tower-tip-halo { animation: tower-halo-anim 1.6s ease-in-out infinite; }

  /* Aktyvaus puslapio nav žymėjimas (kelių puslapių struktūrai) */
  nav a.active { color: var(--text); }
  .mobile-menu-panel ul a.active { color: var(--brand-3); }

  /* Vienodos hover animacijos kitų sekcijų langeliams (kaip paslaugų .service) */
  .add-card, .step, details {
    transition: transform 0.25s, border-color 0.25s, background 0.25s;
  }
  .step { overflow: hidden; }
  details { position: relative; }
  .add-card::before, .step::after, details::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand) 0%, var(--brand-2) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
  }
  .add-card:hover, .step:hover, details:hover {
    transform: translateY(-4px);
    border-color: rgba(132,137,224,0.35);
  }
  .step:hover, details:hover { background: var(--card-2); }
  .add-card:hover::before, .step:hover::after, details:hover::before {
    transform: scaleX(1);
  }

  /* Sklandus fono perėjimas tarp „Papildomai" (--bg-2) ir tolesnių sekcijų (--bg) */
  #procesas { background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%); }