*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --bg: #fafaf9;
    --bg2: #f3f3f1;
    --bg3: #ebebea;
    --text: #111110;
    --text2: #6b6b67;
    --text3: #9b9b96;
    --border: #e4e4e0;
    --nav-h: 60px;
  }

  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* ── SCROLL PROGRESS ── */
  #scroll-progress {
    position: fixed; top: 0; left: 0; height: 2px; z-index: 200;
    background: var(--text); width: 0%;
    transition: width 0.1s linear;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 5vw; height: var(--nav-h);
    background: rgba(250,250,249,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.3s;
  }
  nav.scrolled { box-shadow: 0 1px 16px rgba(0,0,0,0.06); }
  .nav-logo {
    font-size: 0.88rem; font-weight: 500; color: var(--text);
    text-decoration: none; letter-spacing: -0.01em;
    transition: opacity 0.2s;
  }
  .nav-logo:hover { opacity: 0.7; }
  .nav-links { display: flex; gap: 2.5rem; list-style: none; }
  .nav-links a {
    font-size: 0.82rem; color: var(--text2); text-decoration: none;
    font-weight: 400; transition: color 0.15s; position: relative;
  }
  .nav-links a::after {
    content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
    height: 1px; background: var(--text); transform: scaleX(0);
    transform-origin: left; transition: transform 0.2s;
  }
  .nav-links a:hover { color: var(--text); }
  .nav-links a:hover::after { transform: scaleX(1); }
  .nav-right { display: flex; align-items: center; gap: 1rem; }
  .nav-cta {
    font-size: 0.82rem; font-weight: 500; color: var(--text);
    text-decoration: none; border: 1px solid var(--border);
    padding: 0.4rem 1.1rem; border-radius: 6px;
    transition: background 0.15s, border-color 0.15s, transform 0.15s;
    background: transparent; font-family: 'Inter', sans-serif; cursor: pointer;
  }
  .nav-cta:hover { background: var(--bg2); border-color: #c8c8c4; transform: translateY(-1px); }

  /* Hamburger */
  .hamburger {
    display: none; flex-direction: column; gap: 5px;
    cursor: pointer; padding: 4px; background: none; border: none;
  }
  .hamburger span {
    display: block; width: 22px; height: 1.5px; background: var(--text);
    transition: transform 0.3s, opacity 0.3s;
    transform-origin: center;
  }
  .hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  /* Mobile menu */
  .mobile-menu {
    display: none; position: fixed;
    top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background-color: #fafaf9;
    height: calc(60svh - var(--nav-h));
    z-index: 99;
    padding: 2rem 5vw; flex-direction: column; gap: 0;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    pointer-events: none;
  }
  .mobile-menu.open {
    transform: translateX(0);
    pointer-events: all;
  }
  .mobile-menu a {
    font-size: 1.5rem; font-weight: 400; color: var(--text);
    text-decoration: none; padding: 1.4rem 0;
    border-bottom: 1px solid var(--border);
    transition: color 0.15s, padding-left 0.2s;
    display: block;
  }
  .mobile-menu a:hover { color: var(--text2); padding-left: 4px; }
  .mobile-menu a:last-child { border-bottom: none; }
  .nav-overlay {
    display: none; position: fixed; inset: 0; z-index: 98;
    background: rgba(0,0,0,0.45); backdrop-filter: blur(2px);
    opacity: 0; transition: opacity 0.25s;
    pointer-events: none;
  }
  .nav-overlay.open { opacity: 1; pointer-events: all; }

  /* ── HERO ── */
  #hero {
    padding: 140px 5vw 90px;
    border-bottom: 1px solid var(--border);
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 6vw; align-items: center;
    min-height: 100svh;
  }
  .hero-label {
    font-size: 0.72rem; color: var(--text3); font-weight: 400;
    letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 2rem;
    opacity: 0; animation: fadeSlideUp 0.7s 0.1s forwards;
  }
  h1.hero-title {
    font-size: clamp(1.9rem, 3.8vw, 3.2rem); font-weight: 300;
    letter-spacing: -0.035em; line-height: 1.15; color: var(--text);
    margin-bottom: 1.8rem;
    opacity: 0; animation: fadeSlideUp 0.7s 0.25s forwards;
  }
  h1.hero-title strong { font-weight: 600; }
  .hero-sub {
    font-size: 0.92rem; color: var(--text2); font-weight: 400;
    line-height: 1.8; max-width: 400px; margin-bottom: 2.5rem;
    opacity: 0; animation: fadeSlideUp 0.7s 0.4s forwards;
  }
  .hero-actions {
    display: flex; gap: 1rem; align-items: center;
    opacity: 0; animation: fadeSlideUp 0.7s 0.55s forwards;
  }
  .btn-primary {
    font-size: 0.83rem; font-weight: 500; color: var(--bg);
    background: var(--text); padding: 0.62rem 1.4rem; border-radius: 6px;
    text-decoration: none; transition: opacity 0.15s, transform 0.2s;
    display: inline-block;
  }
  .btn-primary:hover { opacity: 0.82; transform: translateY(-2px); }
  .btn-ghost {
    font-size: 0.83rem; color: var(--text2); text-decoration: none;
    transition: color 0.15s, gap 0.2s; display: inline-flex;
    align-items: center; gap: 4px;
  }
  .btn-ghost::after { content: '→'; transition: transform 0.2s; }
  .btn-ghost:hover { color: var(--text); }
  .btn-ghost:hover::after { transform: translateX(3px); }

  /* Hero right */
  .hero-right {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1px; background: var(--border);
    border: 1px solid var(--border); border-radius: 14px;
    overflow: hidden;
    opacity: 0; animation: fadeSlideUp 0.8s 0.3s forwards;
  }
  .hero-photo {
    grid-column: 1 / 3; position: relative;
    overflow: hidden; height: 360px; background: #1a1a18;
  }
  .hero-photo img {
    width: 100%; height: 100%; object-fit: cover;
    object-position: top center; display: block;
    filter: grayscale(5%);
    transition: transform 0.6s ease;
  }
  .hero-photo:hover img { transform: scale(1.03); }
  .stat-box {
    background: var(--bg); padding: 1.6rem;
    transition: background 0.2s, transform 0.2s;
    cursor: default;
  }
  .stat-box:hover { background: var(--bg2); transform: translateY(-1px); }
  .stat-num {
    font-size: 1.6rem; font-weight: 600; letter-spacing: -0.04em;
    color: var(--text); line-height: 1; margin-bottom: 0.35rem;
  }
  .stat-label { font-size: 0.73rem; color: var(--text3); font-weight: 400; line-height: 1.4; }

  /* ── KEYFRAMES ── */
  @keyframes sriIn {
    from { opacity: 0; transform: translateX(22px); }
    to   { opacity: 1; transform: translateX(0); }
  }
  @keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
  }
  @keyframes countUp {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── SCROLL ANIMATIONS ── */
  .reveal {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.65s ease, transform 0.65s ease;
  }
  .reveal.visible { opacity: 1; transform: translateY(0); }
  .reveal-left {
    opacity: 0; transform: translateX(-20px);
    transition: opacity 0.65s ease, transform 0.65s ease;
  }
  .reveal-left.visible { opacity: 1; transform: translateX(0); }
  .stagger > * {
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
  .stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.08s; }
  .stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.16s; }
  .stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.24s; }
  .stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.32s; }
  .stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.40s; }
  .stagger.visible > *:nth-child(7) { opacity: 1; transform: none; transition-delay: 0.48s; }
  .stagger.visible > *:nth-child(8) { opacity: 1; transform: none; transition-delay: 0.56s; }
  .stagger.visible > *:nth-child(9) { opacity: 1; transform: none; transition-delay: 0.64s; }
  .stagger.visible > *:nth-child(10) { opacity: 1; transform: none; transition-delay: 0.72s; }
  .stagger.visible > *:nth-child(11) { opacity: 1; transform: none; transition-delay: 0.80s; }
  .stagger.visible > *:nth-child(12) { opacity: 1; transform: none; transition-delay: 0.88s; }

  /* ── SECTIONS ── */
  section { padding: 7rem 5vw; }
  .section-label {
    font-size: 0.7rem; font-weight: 500; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--text3); margin-bottom: 3rem;
  }
  h2.section-title {
    font-size: clamp(1.5rem, 2.8vw, 2.2rem); font-weight: 300;
    letter-spacing: -0.03em; line-height: 1.2; color: var(--text);
  }
  h2.section-title strong { font-weight: 600; }

  /* ── ABOUT ── */
  #sobre {
    display: grid; grid-template-columns: 260px 1fr;
    gap: 8vw; border-bottom: 1px solid var(--border);
  }
  .about-sticky { position: sticky; top: 80px; align-self: start; }
  .about-body p {
    font-size: 1rem; font-weight: 300; color: var(--text2);
    line-height: 1.9; margin-bottom: 1.3rem; max-width: 540px;
  }
  .about-body p strong { color: var(--text); font-weight: 500; }
  .about-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 2.2rem; }
  .tag {
    font-size: 0.73rem; font-weight: 400; color: var(--text2);
    border: 1px solid var(--border); padding: 0.28rem 0.75rem;
    border-radius: 100px; background: var(--bg2);
    transition: background 0.15s, border-color 0.15s;
  }
  .tag:hover { background: var(--bg3); border-color: #c8c8c4; }

  /* ── MÉTODO SRI ── */
  #metodo { background: var(--text); color: var(--bg); }
  #metodo .section-label { color: rgba(255,255,255,0.3); }
  .sri-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    margin-top: 4rem; border-top: 1px solid rgba(255,255,255,0.1);
  }
  .sri-item {
    padding: 2.5rem 2rem 2.5rem 0;
    border-right: 1px solid rgba(255,255,255,0.1);
    transition: background 0.2s;
  }
  .sri-item:hover { background: rgba(255,255,255,0.03); }
  .sri-item:last-child { border-right: none; padding-right: 0; }
  .sri-item:not(:first-child) { padding-left: 2rem; }
  .sri-letter {
    font-size: 2.8rem; font-weight: 600; letter-spacing: -0.05em;
    color: rgba(255,255,255,0.12); line-height: 1; margin-bottom: 0.9rem;
    transition: color 0.3s;
  }
  .sri-item:hover .sri-letter { color: rgba(255,255,255,0.22); }
  .sri-item h4 { font-size: 0.88rem; font-weight: 500; color: rgba(255,255,255,0.88); margin-bottom: 0.5rem; }
  .sri-item p { font-size: 0.82rem; color: rgba(255,255,255,0.4); line-height: 1.7; font-weight: 300; }
  .sri-desc {
    font-size: 0.92rem; color: rgba(255,255,255,0.45); font-weight: 300;
    line-height: 1.85; max-width: 480px; margin-top: 1.2rem;
  }

  /* ── PROJETOS ── */
  #projetos { border-bottom: 1px solid var(--border); }
  .projects-header {
    display: flex; justify-content: space-between; align-items: flex-end;
    margin-bottom: 3rem;
  }
  .projects-count { font-size: 0.73rem; color: var(--text3); }
  .projects-list { border-top: 1px solid var(--border); }
  .project-row {
    display: grid;
    grid-template-columns: 36px 190px 1fr 130px 118px;
    gap: 2rem; align-items: center;
    padding: 1.3rem 0; border-bottom: 1px solid var(--border);
    transition: background 0.18s, padding 0.18s, margin 0.18s;
    cursor: default;
  }
  .project-row:hover {
    background: var(--bg2);
    margin: 0 -5vw; padding-left: 5vw; padding-right: 5vw;
  }
  .project-row:hover .project-name { color: var(--text); }
  .project-num { font-size: 0.7rem; color: var(--text3); }
  .project-name {
    font-size: 0.93rem; font-weight: 500; color: var(--text);
    letter-spacing: -0.01em; transition: color 0.15s;
  }
  .project-desc { font-size: 0.8rem; color: var(--text2); font-weight: 300; line-height: 1.5; }
  .project-role { font-size: 0.73rem; color: var(--text3); }
  .project-status {
    font-size: 0.7rem; color: var(--text3);
    display: flex; align-items: center; gap: 6px; justify-content: flex-end;
  }
  .dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
  .dot.active { color: #5a9e6f; animation: pulse 2.5s infinite; }
  .dot.dev { color: #b3956a; }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  /* ── APPS ── */
  #apps { border-bottom: 1px solid var(--border); }
  .apps-header {
    display: flex; justify-content: space-between; align-items: flex-end;
    margin-bottom: 3rem;
  }
  .apps-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 1px; background: var(--border);
    border: 1px solid var(--border); border-radius: 14px; overflow: hidden;
  }
  .app-cell {
    background: var(--bg); aspect-ratio: 16/10;
    overflow: hidden; position: relative;
  }
  .app-cell img {
    width: 100%; height: 100%; object-fit: cover;
    object-position: top; display: block;
    transition: transform 0.4s ease;
  }
  .app-cell:hover img { transform: scale(1.04); }
  .app-cell-empty {
    width: 100%; height: 100%;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 0.6rem;
    background: var(--bg2);
  }
  .app-cell-empty span { font-size: 0.75rem; color: var(--text3); }
  .app-cell-empty .app-placeholder-icon {
    width: 36px; height: 36px; border: 1px dashed var(--border);
    border-radius: 8px; display: flex; align-items: center; justify-content: center;
    color: var(--text3); font-size: 1.2rem;
  }
  .app-label {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: rgba(250,250,249,0.92); backdrop-filter: blur(6px);
    border-top: 1px solid var(--border); padding: 0.7rem 1rem;
    display: flex; align-items: center; justify-content: space-between;
  }
  .app-label-name { font-size: 0.82rem; font-weight: 500; color: var(--text); }
  .app-label-cat { font-size: 0.7rem; color: var(--text3); }

  /* ── SERVIÇOS ── */
  #servicos { border-bottom: 1px solid var(--border); }
  .services-layout {
    display: grid; grid-template-columns: 260px 1fr;
    gap: 8vw; margin-top: 4rem;
  }
  .service-item {
    padding: 2rem 0; border-top: 1px solid var(--border);
    transition: padding-left 0.2s;
  }
  .service-item:hover { padding-left: 8px; }
  .service-item:first-child { border-top: none; padding-top: 0; }
  .service-item:first-child:hover { padding-left: 8px; }
  .service-num-small { font-size: 0.7rem; color: var(--text3); margin-bottom: 0.7rem; }
  .service-item h3 {
    font-size: 0.97rem; font-weight: 500; letter-spacing: -0.02em;
    margin-bottom: 0.7rem; color: var(--text);
  }
  .service-item p { font-size: 0.83rem; color: var(--text2); font-weight: 300; line-height: 1.75; }
  .service-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.9rem; }
  .service-tag {
    font-size: 0.7rem; color: var(--text3); border: 1px solid var(--border);
    padding: 0.18rem 0.55rem; border-radius: 4px;
    transition: background 0.15s, color 0.15s;
  }
  .service-tag:hover { background: var(--bg3); color: var(--text2); }
  .services-intro p {
    font-size: 0.88rem; color: var(--text2); font-weight: 300;
    line-height: 1.8; margin-top: 0.9rem; max-width: 240px;
  }

  /* ── MARCAS ── */
  #marcas { border-bottom: 1px solid var(--border); }
  .brand-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1px; background: var(--border);
    border: 1px solid var(--border); border-radius: 12px;
    overflow: hidden; margin-top: 3rem;
  }
  .brand-cell {
    position: relative; aspect-ratio: 3/4;
    overflow: hidden; cursor: default;
  }
  .brand-cell img {
    width: 100%; height: 100%; object-fit: cover;
    object-position: center; display: block;
    transition: transform 0.5s ease, filter 0.3s;
    filter: saturate(0.88) brightness(0.97);
  }
  .brand-cell:hover img { transform: scale(1.06); filter: saturate(1) brightness(1); }
  .brand-label {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 0.75rem 1rem;
    background: rgba(250,250,249,0.92); backdrop-filter: blur(6px);
    border-top: 1px solid rgba(0,0,0,0.06);
    display: flex; flex-direction: column; align-items: flex-start; gap: 0.15rem;
    opacity: 0; transform: translateY(6px);
    transition: opacity 0.28s, transform 0.28s;
  }
  .brand-cell:hover .brand-label { opacity: 1; transform: translateY(0); }
  .brand-label-name { font-size: 0.8rem; font-weight: 500; color: var(--text); line-height: 1; }
  .brand-label-cat { font-size: 0.68rem; color: var(--text3); line-height: 1; white-space: nowrap; }
  .brand-cell-empty {
    background: var(--bg2); width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.73rem; color: var(--text3);
  }

  /* ── CONTACT ── */
  #contato {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 6vw; align-items: center;
  }
  .contact-left h2 {
    font-size: clamp(1.7rem, 2.8vw, 2.6rem); font-weight: 300;
    letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 1.1rem;
  }
  .contact-left h2 strong { font-weight: 600; }
  .contact-left p { font-size: 0.88rem; color: var(--text2); font-weight: 300; line-height: 1.8; max-width: 360px; }
  .contact-right { display: flex; flex-direction: column; gap: 0.85rem; }
  .contact-link {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.1rem 1.3rem; border: 1px solid var(--border); border-radius: 10px;
    text-decoration: none; color: var(--text); background: var(--bg);
    transition: background 0.18s, border-color 0.18s, transform 0.2s;
  }
  .contact-link:hover { background: var(--bg2); border-color: #c8c8c4; transform: translateX(4px); }
  .contact-link-label { font-size: 0.72rem; color: var(--text3); margin-bottom: 0.15rem; }
  .contact-link-value { font-size: 0.88rem; font-weight: 500; letter-spacing: -0.01em; }
  .contact-arrow { font-size: 0.95rem; color: var(--text3); transition: transform 0.2s; }
  .contact-link:hover .contact-arrow { transform: translateX(3px) translateY(-3px); }
  .contact-link-btn {
    width: 100%; text-align: left; cursor: pointer;
    font-family: inherit;
  }
  .contact-btn-tag {
    font-size: 0.72rem; font-weight: 500; white-space: nowrap;
    padding: 0.35rem 0.8rem; border: 1px solid var(--border);
    border-radius: 20px; color: var(--text2);
    transition: background 0.18s, color 0.18s, border-color 0.18s;
  }
  .contact-link:hover .contact-btn-tag {
    background: var(--text); color: var(--bg); border-color: var(--text);
  }

  /* ── MODAL ── */
  .modal-overlay {
    position: fixed; inset: 0; z-index: 9000;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    padding: 1.5rem;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s;
  }
  .modal-overlay.open { opacity: 1; pointer-events: all; }
  .modal-box {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 2.2rem 2rem;
    width: 100%; max-width: 460px; position: relative;
    transform: translateY(18px);
    transition: transform 0.25s;
  }
  .modal-overlay.open .modal-box { transform: translateY(0); }
  .modal-close {
    position: absolute; top: 1rem; right: 1rem;
    background: none; border: none; cursor: pointer;
    font-size: 1.4rem; color: var(--text3); line-height: 1;
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; transition: background 0.15s;
  }
  .modal-close:hover { background: var(--bg2); }
  .modal-box h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.35rem; }
  .modal-desc { font-size: 0.82rem; color: var(--text2); margin-bottom: 1.5rem; line-height: 1.6; }
  .form-group { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.9rem; }
  .form-group label { font-size: 0.73rem; font-weight: 500; color: var(--text2); }
  .form-group input,
  .form-group textarea {
    padding: 0.7rem 0.9rem; border: 1px solid var(--border);
    border-radius: 8px; background: var(--bg2); color: var(--text);
    font-family: inherit; font-size: 0.87rem;
    outline: none; transition: border-color 0.15s;
  }
  .form-group input:focus,
  .form-group textarea:focus { border-color: #888; }
  .form-group textarea { resize: vertical; min-height: 88px; }
  .form-submit { width: 100%; margin-top: 0.4rem; justify-content: center; }
  .modal-success {
    display: none; text-align: center;
    padding: 1.5rem 0;
  }
  .modal-success-icon {
    width: 48px; height: 48px; border-radius: 50%;
    background: #e8f5e9; color: #388e3c;
    font-size: 1.4rem; display: flex; align-items: center;
    justify-content: center; margin: 0 auto 1rem;
  }
  .modal-success h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.4rem; }
  .modal-success p { font-size: 0.83rem; color: var(--text2); }

  /* ── FOOTER ── */
  footer {
    border-top: 1px solid var(--border); padding: 1.8rem 5vw;
    display: flex; justify-content: space-between;
    align-items: center; font-size: 0.75rem; color: var(--text3);
  }
  .footer-logo { font-weight: 500; color: var(--text); text-decoration: none; font-size: 0.83rem; }

  /* ── RESPONSIVE: 1280px+ (large desktop) ── */
  @media (min-width: 1280px) {
    #hero { padding: 160px 7vw 100px; }
    section { padding: 8rem 7vw; }
    nav { padding: 0 7vw; }
    footer { padding: 1.8rem 7vw; }
  }

  /* ── RESPONSIVE: tablet 768–1024px ── */
  @media (max-width: 1024px) {
    #hero { gap: 4vw; }
    .hero-photo { height: 300px; }
    #sobre { grid-template-columns: 220px 1fr; gap: 5vw; }
    .services-layout { grid-template-columns: 200px 1fr; gap: 5vw; }
    .project-row { grid-template-columns: 28px 160px 1fr 100px; gap: 1.5rem; }
    .project-status { display: none; }
  }

  /* ── RESPONSIVE: 900px ── */
  @media (max-width: 900px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .mobile-menu { display: flex; }
    .nav-overlay { display: block; }
    #hero { grid-template-columns: 1fr; gap: 2.5rem; padding-top: 100px; min-height: auto; padding-bottom: 60px; }
    .hero-photo { height: 280px; }
    #sobre { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-sticky { position: static; }
    .sri-grid { display: block; margin-top: 2rem; }
    .sri-item {
      display: none; border: none; padding: 2rem 1.8rem;
      border-radius: 14px;
    }
    .sri-item.sri-active {
      display: block;
      background: #fff; color: #111;
      animation: sriIn 0.35s ease forwards;
    }
    .sri-item.sri-active h4 { color: #111; }
    .sri-item.sri-active p { color: rgba(0,0,0,0.55); }
    .sri-item.sri-active .sri-letter { color: rgba(0,0,0,0.07); }
    .sri-item:not(:first-child) { padding-left: 1.8rem; }
    .sri-dots {
      display: flex; justify-content: center;
      gap: 0.55rem; margin-top: 1.2rem;
    }
    .sri-dot {
      width: 7px; height: 7px; border-radius: 50%;
      background: rgba(255,255,255,0.25); border: none;
      cursor: pointer; padding: 0;
      transition: background 0.3s, transform 0.3s;
    }
    .sri-dot.sri-dot-active { background: #fff; transform: scale(1.45); }
    .project-row { grid-template-columns: 1fr auto; gap: 1rem; }
    .project-num, .project-role, .project-desc { display: none; }
    .project-status { display: flex; }
    .apps-grid { grid-template-columns: 1fr; }
    .services-layout { grid-template-columns: 1fr; gap: 2.5rem; }
    .brand-grid { grid-template-columns: repeat(2, 1fr); }
    .brand-label { opacity: 1; transform: none; }
    .brand-cell { aspect-ratio: 3/4; }
    #contato { grid-template-columns: 1fr; gap: 3rem; }
    .projects-header, .apps-header { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
    section { padding: 5rem 5vw; }
  }

  /* ── RESPONSIVE: 600px ── */
  @media (max-width: 600px) {
    section { padding: 4rem 5vw; }
    #hero { padding: 90px 5vw 50px; }
    .hero-photo { height: 240px; }
    .stat-num { font-size: 1.3rem; }
    .stat-box { padding: 1.1rem; }
    .brand-grid { grid-template-columns: 1fr 1fr; }
    .brand-cell { aspect-ratio: 3/4; }
    h2.section-title { font-size: 1.4rem; }
    .service-item:hover { padding-left: 0; }
    .about-body p { font-size: 0.95rem; }
  }

  /* ── RESPONSIVE: 400px ── */
  @media (max-width: 400px) {
    nav { padding: 0 4vw; }
    section { padding: 3.5rem 4vw; }
    #hero { padding: 85px 4vw 45px; }
    h1.hero-title { font-size: 1.75rem; }
    .hero-photo { height: 200px; }
    .brand-grid { grid-template-columns: 1fr; }
    .brand-cell { aspect-ratio: 3/2; }
  }