:root {
    --blue: #0b3d91;
    --blue-dark: #082a66;
    --ink: #10151f;
    --muted: #5b6472;
    --line: #e6e9ef;
    --bg: #f7f8fb;
    --whatsapp: #25d366;
    --whatsapp-dark: #1da851;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    font-family: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; }
  img { max-width: 100%; display: block; }
  .wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

  /* header */
  header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(247, 248, 251, .9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
  }
  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 19px;
    text-decoration: none;
    color: var(--ink);
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .brand-mark svg { width: 19px; height: 19px; }
  .nav-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    white-space: nowrap;
  }
  .nav-phone svg { width: 18px; height: 18px; color: var(--whatsapp); flex-shrink: 0; }

  /* hero */
  .hero {
    padding: 56px 0 48px;
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #eef3ff;
    color: var(--blue);
    font-size: 13px;
    font-weight: 700;
    padding: 7px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
  }
  .hero h1 {
    font-size: clamp(30px, 5.2vw, 48px);
    line-height: 1.12;
    margin: 0 0 16px;
    letter-spacing: -0.02em;
  }
  .hero h1 span { color: var(--blue); }
  .hero p.lead {
    font-size: 18px;
    color: var(--muted);
    max-width: 560px;
    margin: 0 0 30px;
    line-height: 1.55;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    margin-bottom: 34px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 16px;
    padding: 15px 26px;
    border-radius: 12px;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  }
  .btn svg { width: 20px; height: 20px; flex-shrink: 0; }
  .btn-whatsapp {
    background: var(--whatsapp);
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(37, 211, 102, .55);
  }
  .btn-whatsapp:hover { background: var(--whatsapp-dark); transform: translateY(-1px); }
  .btn-ghost {
    background: #fff;
    color: var(--ink);
    border-color: var(--line);
  }
  .btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

  .trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
  }
  .trust-item {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
  }
  .trust-item svg { width: 18px; height: 18px; color: var(--blue); flex-shrink: 0; }

  /* sections */
  section { padding: 56px 0; }
  .section-head { margin-bottom: 32px; max-width: 620px; }
  .eyebrow {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 10px;
  }
  h2 {
    font-size: clamp(24px, 3.6vw, 32px);
    margin: 0 0 10px;
    letter-spacing: -0.01em;
  }
  .section-head p { color: var(--muted); font-size: 16px; margin: 0; line-height: 1.55; }

  /* services */
  .services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .service-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 24px;
  }
  .service-icon {
    width: 44px;
    height: 44px;
    border-radius: 11px;
    background: #eef3ff;
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
  }
  .service-icon svg { width: 22px; height: 22px; }
  .service-card h3 {
    font-size: 16px;
    margin: 0 0 6px;
  }
  .service-card p {
    font-size: 14px;
    color: var(--muted);
    margin: 0;
    line-height: 1.5;
  }

  /* works / portfolio */
  .works-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .work-card {
    display: flex;
    gap: 32px;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 20px;
  }
  .work-photo {
    position: relative;
    flex: 1 1 60%;
    min-width: 0;
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    background-color: var(--line);
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4 / 3;
    font: inherit;
  }
  .work-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s ease;
  }
  .work-photo:hover img,
  .work-photo:focus-visible img { transform: scale(1.04); }
  .work-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8,20,40,.4) 0%, transparent 42%);
    opacity: 0;
    transition: opacity .2s ease;
  }
  .work-photo:hover::after,
  .work-photo:focus-visible::after { opacity: 1; }
  .work-photo:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
  }
  .work-photo-badge {
    position: absolute;
    right: 14px;
    bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16, 21, 31, .68);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    padding: 8px 12px;
    border-radius: 999px;
  }
  .work-photo-badge svg { width: 15px; height: 15px; flex-shrink: 0; }
  .work-info {
    flex: 1 1 40%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8px 4px;
  }
  .work-info h3 { font-size: 22px; margin: 0 0 8px; letter-spacing: -0.01em; }
  .work-location {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue);
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 14px;
  }
  .work-location svg { width: 16px; height: 16px; flex-shrink: 0; }
  .work-info p { color: var(--muted); font-size: 15px; line-height: 1.6; margin: 0; }

  /* lightbox */
  .lightbox {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(8, 11, 18, .92);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .lightbox[hidden] { display: none; }
  .lightbox-stage {
    position: relative;
    max-width: min(92vw, 1100px);
    max-height: 86vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .lightbox-img {
    max-width: 100%;
    max-height: 86vh;
    border-radius: 12px;
    box-shadow: 0 30px 60px -20px rgba(0,0,0,.6);
    opacity: 1;
    transition: opacity .15s ease;
    display: block;
  }
  .lightbox-img.is-fading { opacity: 0; }
  .lightbox-close,
  .lightbox-prev,
  .lightbox-next {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,.16);
    box-shadow: 0 2px 10px rgba(0,0,0,.35);
    color: #fff;
    border: 1px solid rgba(255,255,255,.28);
    border-radius: 999px;
    cursor: pointer;
    transition: background .15s ease;
  }
  .lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
    background: rgba(255,255,255,.3);
  }
  .lightbox-close:focus-visible, .lightbox-prev:focus-visible, .lightbox-next:focus-visible {
    background: rgba(255,255,255,.22);
    outline: 2px solid #fff;
    outline-offset: 2px;
  }
  .lightbox-close {
    top: 18px;
    right: 18px;
    width: 46px;
    height: 46px;
  }
  .lightbox-close svg { width: 20px; height: 20px; }
  .lightbox-prev,
  .lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
  }
  .lightbox-prev { left: 14px; }
  .lightbox-next { right: 14px; }
  .lightbox-prev svg,
  .lightbox-next svg { width: 24px; height: 24px; }
  .lightbox-prev:disabled,
  .lightbox-next:disabled {
    opacity: .25;
    cursor: default;
    pointer-events: none;
  }
  .lightbox-counter {
    position: fixed;
    top: 22px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    background: rgba(255,255,255,.12);
    padding: 6px 14px;
    border-radius: 999px;
  }
  .lightbox-dots {
    position: fixed;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
  }
  .lightbox-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,.4);
    border: 0;
    padding: 0;
    cursor: pointer;
  }
  .lightbox-dot[aria-current="true"] { background: #fff; }
  .lightbox-dot:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
  }

  @media (max-width: 640px) {
    .lightbox-prev, .lightbox-next { width: 48px; height: 48px; }
    .lightbox-prev { left: 4px; }
    .lightbox-next { right: 4px; }
    .lightbox-close { top: 10px; right: 10px; width: 44px; height: 44px; }
    .lightbox-counter { top: 12px; }
    .lightbox-img { max-height: 78vh; }
  }

  /* cta band */
  .cta-band {
    background: var(--blue);
    color: #fff;
    border-radius: 22px;
    padding: 40px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .cta-band h2 { color: #fff; margin: 0 0 6px; }
  .cta-band p { margin: 0; color: #c9d7f5; font-size: 15px; }
  .cta-band .btn-whatsapp { box-shadow: none; }

  footer {
    padding: 40px 0 110px;
    color: var(--muted);
    font-size: 14px;
  }
  .footer-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
  }

  /* floating whatsapp button */
  .fab {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--whatsapp);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 18px;
    border-radius: 999px;
    box-shadow: 0 12px 28px -6px rgba(37, 211, 102, .6);
  }
  .fab svg { width: 22px; height: 22px; flex-shrink: 0; }
  .fab .fab-text { white-space: nowrap; }

  @media (max-width: 860px) {
    .services { grid-template-columns: repeat(2, 1fr); }
    .work-card { flex-direction: column; padding: 14px; gap: 16px; }
    .work-info { padding: 0 6px 4px; }
  }
  @media (max-width: 560px) {
    .nav-phone .nav-phone-text { display: none; }
    .services { grid-template-columns: 1fr; }
    .cta-band { padding: 28px; }
    .fab .fab-text { display: none; }
    .fab { padding: 14px; }
  }