:root {
      --brand-bg: #BDC6C7;
      --brand-surface: #C7CFD1;
      --brand-primary: #1E1E1E;
      --brand-accent: #4C5C68;
      --brand-muted: #7C8A92;
      --brand-highlight: #D3DBDD;

      --radius-lg: 1rem;
      --radius-xl: 1.25rem;
      --shadow-soft: 0 8px 20px rgba(0,0,0,0.06);
      --transition-fast: 0.2s ease;
    }

    * { box-sizing:border-box; margin:0; padding:0; }
    html, body { height:100%; }
    html { scroll-behavior:smooth; }

    body {
      font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      background:var(--brand-bg);
      color:var(--brand-primary);
      -webkit-font-smoothing:antialiased;
    }

    body.no-scroll { overflow: hidden; height: 100vh; }

    img { max-width:100%; display:block; }
    a { color:inherit; text-decoration:none; }
    button { font-family:inherit; cursor:pointer; border:none; background:none; }

    .container {
      max-width:1120px;
      margin:0 auto;
      padding:0 16px;
    }

    .page-shell { min-height:100vh; display:flex; flex-direction:column; }
    main { flex:1; }

    /* HEADER / NAV */
    .site-header {
      position:sticky;
      top:0;
      z-index:40;
      background:rgba(199,207,209,0.96);
      backdrop-filter:blur(10px);
      border-bottom:1px solid var(--brand-highlight);
    }
    .nav-inner {
      height:56px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .nav-brand {
      font-family:'Poppins',sans-serif;
      font-weight:700;
      font-size:1.1rem;
      letter-spacing:0.02em;
      color:var(--brand-primary);
      padding:4px 6px;
      border-radius:6px;
      transition:opacity var(--transition-fast);
    }
    .nav-brand:hover { opacity:0.85; }

    .nav-links-desktop {
      display:flex;
      align-items:center;
      gap:24px;
      font-size:0.9rem;
      flex:1;
      justify-content:center;
    }
    .nav-link {
      position:relative;
      padding:6px 4px;
      font-family:'Poppins',sans-serif;
      font-weight:600;
      border-radius:6px;
      transition:color var(--transition-fast);
    }
    .nav-link::after {
      content:"";
      position:absolute;
      left:0;
      bottom:-3px;
      width:100%;
      height:2px;
      border-radius:999px;
      background:var(--brand-primary);
      transform-origin:left;
      transform:scaleX(0);
      transition:transform var(--transition-fast);
    }
    .nav-link:hover::after,
    .nav-link:focus-visible::after { transform:scaleX(1); }

    .nav-link--active::after {
      transform:scaleX(1);
    }

    .nav-right {
      display:flex;
      align-items:center;
      gap:8px;
    }

    .lang-select {
      background:rgba(199,207,209,0.95);
      border:1px solid var(--brand-highlight);
      border-radius:999px;
      padding:4px 10px;
      font-size:0.82rem;
      outline:none;
      min-width:70px;
      font-weight:500;
    }
    .lang-select:focus {
      box-shadow:0 0 0 2px rgba(76,92,104,0.25);
    }

    .nav-mobile-toggle {
      display:none;
      width:40px;
      height:40px;
      border-radius:14px;
      border:1px solid var(--brand-highlight);
      background:var(--brand-surface);
      align-items:center;
      justify-content:center;
      transition:transform var(--transition-fast), background var(--transition-fast);
    }
    .nav-mobile-toggle:active { transform:scale(0.96); }
    .nav-mobile-toggle:hover { background:#d3dadc; }

    .nav-burger {
      width:19px;
      height:2px;
      background:var(--brand-primary);
      position:relative;
      transition:background var(--transition-fast);
    }
    .nav-burger::before,
    .nav-burger::after {
      content:"";
      position:absolute;
      left:0;
      width:19px;
      height:2px;
      background:var(--brand-primary);
      transition:transform var(--transition-fast), opacity var(--transition-fast);
    }
    .nav-burger::before { top:-6px; }
    .nav-burger::after { top:6px; }

    .nav-mobile-toggle.is-open .nav-burger { background:transparent; }
    .nav-mobile-toggle.is-open .nav-burger::before {
      transform:translateY(6px) rotate(45deg);
    }
    .nav-mobile-toggle.is-open .nav-burger::after {
      transform:translateY(-6px) rotate(-45deg);
    }

    .nav-links-mobile {
      display:none;
      max-height:100vh;
      overflow-y:auto;
      border-top:1px solid var(--brand-highlight);
      background:rgba(199,207,209,0.98);
    }
    .nav-links-mobile-inner {
      padding:8px 0 12px;
      display:flex;
      flex-direction:column;
    }
    .nav-link-mobile {
      text-align:left;
      padding:8px 0;
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:0.95rem;
    }

    /* GENERIC SECTIONS */
    .section {
      padding:40px 0;
      border-bottom:1px solid var(--brand-highlight);
    }
    .section--no-border { border-bottom:none; }

    .section-title {
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:1.4rem;
      margin-bottom:12px;
    }
    .section-subtitle {
      color:var(--brand-muted);
      font-size:0.9rem;
      margin-bottom:18px;
      max-width:640px;
    }

    .eyebrow {
      font-size:0.75rem;
      font-weight:600;
      text-transform:uppercase;
      letter-spacing:0.08em;
      color:var(--brand-muted);
      margin-bottom:6px;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .icon-badge {
      width:22px;
      height:22px;
      border-radius:999px;
      background:rgba(0,0,0,0.07);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:0.9rem;
    }

    /* HERO */
    .expertise-hero {
      padding-top:32px;
      padding-bottom:16px;
      display:block;
    }
    .expertise-hero-title {
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:1.9rem;
      line-height:1.25;
      max-width:640px;
    }
    .expertise-hero-text {
      margin-top:10px;
      color:var(--brand-muted);
      font-size:0.95rem;
      line-height:1.6;
      max-width:640px;
    }

    .chip-row {
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }
    .chip {
      padding:6px 14px;
      border-radius:999px;
      border:1px solid var(--brand-highlight);
      background:var(--brand-surface);
      font-family:'Poppins',sans-serif;
      font-size:0.8rem;
      font-weight:600;
      color:var(--brand-primary);
      display:inline-flex;
      align-items:center;
      gap:6px;
    }

    /* CARDS & GRID */
    .card {
      background:var(--brand-surface);
      border-radius:var(--radius-xl);
      border:1px solid var(--brand-highlight);
      padding:18px 16px;
      box-shadow:0 0 0 rgba(0,0,0,0);
      transition:transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .card--hover { cursor:pointer; }
    .card--hover:hover {
      transform:translateY(-3px) scale(1.01);
      box-shadow:var(--shadow-soft);
    }
    .card-title-sm {
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:1rem;
      margin-bottom:6px;
      display:flex;
      align-items:center;
      gap:8px;
    }
    .card-meta {
      font-size:0.82rem;
      color:var(--brand-muted);
      margin-bottom:6px;
    }
    .card-text {
      font-size:0.86rem;
      color:rgba(30,30,30,0.9);
      line-height:1.55;
    }

    .badge-icon {
      width:26px;
      height:26px;
      border-radius:999px;
      background:#dde4e6;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex-shrink:0;
    }

    .grid {
      display:grid;
      gap:16px;
    }
    .grid-2 { grid-template-columns:repeat(1,minmax(0,1fr)); }
    .grid-3 { grid-template-columns:repeat(1,minmax(0,1fr)); }
    @media(min-width:640px){
      .grid-2 { grid-template-columns:repeat(2,minmax(0,1fr)); }
      .grid-3 { grid-template-columns:repeat(3,minmax(0,1fr)); }
    }

    .bullet-list {
      list-style:none;
      margin-top:8px;
      font-size:0.85rem;
      color:rgba(30,30,30,0.9);
    }
    .bullet-list li {
      position:relative;
      padding-left:16px;
      margin-bottom:4px;
    }
    .bullet-list li::before {
      content:"•";
      position:absolute;
      left:4px;
      top:0;
      color:var(--brand-accent);
      font-weight:700;
    }

    /* PROCESS */
    .process-grid {
      display:grid;
      gap:16px;
    }
    @media(min-width:768px){
      .process-grid {
        grid-template-columns:repeat(4,minmax(0,1fr));
      }
    }
    .step-number {
      font-size:0.78rem;
      font-weight:600;
      color:var(--brand-muted);
      margin-bottom:4px;
    }

    /* CTA BAND */
    .cta-band {
      background:var(--brand-surface);
      border-radius:var(--radius-xl);
      border:1px solid var(--brand-highlight);
      padding:18px 16px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      justify-content:space-between;
      box-shadow:var(--shadow-soft);
    }
    .cta-band-title {
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:1rem;
      margin-bottom:4px;
    }
    .cta-band-text {
      font-size:0.86rem;
      color:var(--brand-muted);
    }

    /* BUTTONS */
    .btn {
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:8px 16px;
      border-radius:10px;
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:0.9rem;
      border:1px solid transparent;
      transition:transform var(--transition-fast), box-shadow var(--transition-fast),
                 background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    }
    .btn:active { transform:scale(0.96); }
    .btn-primary {
      background:var(--brand-primary);
      color:#ffffff;
      border-color:rgba(76,92,104,0.4);
    }
    .btn-primary:hover {
      background:var(--brand-accent);
      box-shadow:var(--shadow-soft);
    }
    .btn-secondary {
      background:var(--brand-surface);
      color:var(--brand-primary);
      border-color:var(--brand-highlight);
    }
    .btn-secondary:hover {
      background:#d4dbdd;
      box-shadow:var(--shadow-soft);
    }

    /* WHATSAPP FLOAT BUTTON */
    .whatsapp-help-btn {
      position:fixed;
      right:18px;
      bottom:18px;
      z-index:50;
      background:#25D366;
      color:#ffffff;
      border-radius:999px;
      padding:10px 18px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:0.88rem;
      box-shadow:0 12px 25px rgba(0,0,0,0.18);
      border:none;
      transition:transform var(--transition-fast), box-shadow var(--transition-fast),
                 background var(--transition-fast), opacity var(--transition-fast);
    }
    .whatsapp-help-btn span:first-child{
      width:22px;
      height:22px;
      border-radius:999px;
      background:rgba(0,0,0,0.08);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:0.9rem;
    }
    .whatsapp-help-btn:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 30px rgba(0,0,0,0.24);
      background:#1ebe5b;
    }

    /* BACK TO TOP */
    .back-to-top {
      position:fixed;
      right:18px;
      bottom:76px;
      padding:8px 14px;
      border-radius:999px;
      border:1px solid var(--brand-highlight);
      background:var(--brand-surface);
      font-size:0.8rem;
      color:var(--brand-primary);
      box-shadow:var(--shadow-soft);
      opacity:0;
      pointer-events:none;
      transition:opacity var(--transition-fast), transform var(--transition-fast);
      z-index:40;
    }
    .back-to-top.is-visible {
      opacity:1;
      pointer-events:auto;
      transform:translateY(0);
    }

    /* FOOTER */
    .site-footer {
      border-top:1px solid var(--brand-highlight);
      background:rgba(199,207,209,0.98);
      padding:18px 0;
      font-size:0.85rem;
      color:rgba(30,30,30,0.8);
    }
    .footer-inner {
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
      align-items:center;
    }

    /* MODAL (WhatsApp helper) */
    .modal {
      position:fixed;
      inset:0;
      display:none;
      align-items:center;
      justify-content:center;
      z-index:60;
    }
    .modal--open { display:flex; }
    .modal-backdrop {
      position:absolute;
      inset:0;
      background:rgba(0,0,0,0.35);
    }
    .modal-dialog {
      position:relative;
      z-index:1;
      width:100%;
      max-width:440px;
      background:var(--brand-surface);
      border-radius:var(--radius-xl);
      border:1px solid var(--brand-highlight);
      box-shadow:0 18px 45px rgba(0,0,0,0.18);
      padding:22px 20px 20px;
      animation:modalIn 0.25s ease-out forwards;
    }
    .modal-header {
      display:flex;
      align-items:center;
      justify-content:space-between;
      margin-bottom:12px;
    }
    .modal-title {
      font-family:'Poppins',sans-serif;
      font-weight:600;
      font-size:1rem;
    }
    .modal-close {
      width:28px;
      height:28px;
      border-radius:999px;
      border:1px solid var(--brand-highlight);
      background:var(--brand-surface);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:0.9rem;
      transition:background var(--transition-fast), transform var(--transition-fast);
    }
    .modal-close:hover {
      background:#d4dbdd;
      transform:scale(1.05);
    }
    .form-group { margin-bottom:10px; text-align:left; }
    .form-label {
      display:block;
      font-size:0.82rem;
      font-weight:500;
      margin-bottom:4px;
    }
    .form-input,
    .form-textarea {
      width:100%;
      border-radius:10px;
      border:1px solid var(--brand-highlight);
      padding:8px 10px;
      font-size:0.86rem;
      font-family:inherit;
      outline:none;
      background:#dde4e6;
      transition:border-color var(--transition-fast),
               box-shadow var(--transition-fast),
               background var(--transition-fast);
    }
    .form-input:focus,
    .form-textarea:focus {
      border-color:var(--brand-accent);
      box-shadow:0 0 0 2px rgba(76,92,104,0.25);
      background:var(--brand-surface);
    }
    .form-textarea { min-height:80px; resize:vertical; }
    .form-hint {
      font-size:0.78rem;
      color:var(--brand-muted);
      margin-top:2px;
    }
    .form-error {
      font-size:0.78rem;
      color:#b91c1c;
      margin-top:4px;
      display:none;
    }
    .form-error.is-visible { display:block; }
    .modal-footer {
      margin-top:10px;
      display:flex;
      justify-content:flex-end;
      gap:8px;
    }

    /* ANIMATIONS */
    .reveal {
      opacity:0;
      transform:translateY(16px);
      transition:opacity 0.4s ease-out, transform 0.4s ease-out;
    }
    .reveal.is-visible {
      opacity:1;
      transform:translateY(0);
    }
    @keyframes modalIn {
      from { opacity:0; transform:translateY(16px) scale(0.98); }
      to   { opacity:1; transform:translateY(0) scale(1); }
    }

    /* RESPONSIVE */
    @media (max-width:767px){
      .nav-links-desktop { display:none; }
      .nav-mobile-toggle { display:inline-flex; }
      .expertise-hero-title { font-size:1.6rem; }
    }
    @media (min-width:768px){
      .back-to-top { bottom:88px; }
    }

/* SERVICES VISUAL POLISH V1 */
:root {
  --brand-surface: #C8D0D1;
  --brand-accent: #40525E;
  --brand-muted: #3B4850;
  --brand-highlight: rgba(30, 30, 30, 0.11);
  --radius-lg: 0.875rem;
  --radius-xl: 1.125rem;
  --shadow-soft: 0 18px 48px rgba(30, 30, 30, 0.10);
}

body {
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--brand-primary);
  color: #fff;
}

.container {
  max-width: 1240px;
  padding-inline: clamp(20px, 4vw, 40px);
}

.site-header {
  background: rgba(189, 198, 199, 0.90);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  backdrop-filter: blur(16px) saturate(120%);
  border-bottom-color: rgba(30, 30, 30, 0.10);
}

.nav-inner {
  height: 68px;
  gap: 24px;
}

.nav-brand {
  padding: 4px 0;
  font-size: 1.04rem;
  letter-spacing: 0.015em;
}

.nav-links-desktop {
  gap: clamp(16px, 2vw, 28px);
  font-size: 0.84rem;
}

.nav-link {
  padding-block: 8px;
  letter-spacing: 0.01em;
}

.lang-select {
  min-height: 38px;
  padding: 6px 12px;
  background: rgba(200, 208, 209, 0.82);
  border-color: rgba(30, 30, 30, 0.12);
}

.nav-mobile-toggle {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border-color: rgba(30, 30, 30, 0.12);
}

.nav-links-mobile-inner {
  padding: 18px 0 28px;
}

.nav-link-mobile {
  padding: 13px 0;
  font-size: 1rem;
}

.expertise-hero {
  padding-top: clamp(76px, 9vw, 132px);
  padding-bottom: clamp(46px, 6vw, 78px);
}

.expertise-hero-title {
  max-width: 900px;
  font-size: clamp(2.45rem, 5.4vw, 4.5rem);
  line-height: 1.03;
  letter-spacing: -0.042em;
  text-wrap: balance;
}

.expertise-hero-text {
  max-width: 760px;
  margin-top: 24px;
  color: var(--brand-muted);
  font-size: clamp(0.98rem, 1.35vw, 1.09rem);
  line-height: 1.75;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--brand-accent);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.icon-badge {
  background: rgba(64, 82, 94, 0.09);
}

.chip-row {
  gap: 9px;
  margin-top: 28px;
}

.chip {
  min-height: 38px;
  padding: 8px 14px;
  border-color: rgba(30, 30, 30, 0.10);
  background: rgba(200, 208, 209, 0.64);
  font-size: 0.77rem;
}

.section {
  padding: clamp(66px, 8vw, 108px) 0;
  border-bottom-color: rgba(30, 30, 30, 0.10);
}

.section-title {
  max-width: 800px;
  margin-bottom: 16px;
  font-size: clamp(1.65rem, 2.8vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-subtitle {
  max-width: 720px;
  margin-bottom: 30px;
  color: var(--brand-muted);
  font-size: clamp(0.94rem, 1.2vw, 1.02rem);
  line-height: 1.72;
}

.grid {
  gap: clamp(16px, 2vw, 24px);
}

.card {
  padding: clamp(22px, 2.4vw, 30px);
  border-radius: 1rem;
  border-color: rgba(30, 30, 30, 0.10);
  background: rgba(200, 208, 209, 0.62);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18) inset;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.card--hover:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 30, 30, 0.17);
  background: rgba(210, 218, 220, 0.78);
  box-shadow: 0 18px 44px rgba(30, 30, 30, 0.08);
}

.card-title-sm {
  gap: 11px;
  margin-bottom: 10px;
  font-size: clamp(1.04rem, 1.45vw, 1.18rem);
  line-height: 1.35;
  letter-spacing: -0.012em;
}

.badge-icon {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.28);
}

.card-meta {
  margin-bottom: 8px;
  color: var(--brand-muted);
  font-size: 0.78rem;
}

.card-text,
.bullet-list {
  color: rgba(30, 30, 30, 0.84);
  font-size: 0.91rem;
  line-height: 1.68;
}

.bullet-list {
  margin-top: 12px;
}

.bullet-list li {
  margin-bottom: 7px;
}

.process-grid {
  gap: 18px;
}

.process-grid .card {
  min-height: 190px;
}

.step-number {
  margin-bottom: 9px;
  color: var(--brand-accent);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.cta-band {
  padding: clamp(28px, 4vw, 42px);
  gap: 22px;
  border-color: rgba(30, 30, 30, 0.10);
  background: linear-gradient(135deg, rgba(200,208,209,0.72), rgba(221,228,230,0.82));
  box-shadow: none;
}

.cta-band-title {
  margin-bottom: 7px;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.cta-band-text {
  max-width: 680px;
  color: var(--brand-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.btn {
  min-height: 48px;
  padding: 11px 22px;
  font-size: 0.88rem;
}

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

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.whatsapp-help-btn {
  color: #0F2A1C;
  padding: 11px 18px;
  box-shadow: 0 12px 30px rgba(18, 80, 45, 0.22);
}

.site-footer {
  padding: 30px 0;
  border-top-color: rgba(30, 30, 30, 0.10);
  background: rgba(200, 208, 209, 0.76);
}

:where(a, button, select, input, textarea):focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 3px;
}

@media (min-width: 1024px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .container {
    padding-inline: 20px;
  }

  .nav-inner {
    height: 62px;
  }

  .expertise-hero {
    padding-top: 58px;
    padding-bottom: 42px;
  }

  .expertise-hero-title {
    font-size: clamp(2.2rem, 10.5vw, 3.3rem);
    line-height: 1.04;
  }

  .expertise-hero-text {
    margin-top: 20px;
    font-size: 0.98rem;
  }

  .section {
    padding: 58px 0;
  }

  .card {
    padding: 22px;
  }

  .process-grid .card {
    min-height: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}