:root {
  --ink: #20201d;
  --muted: #68645d;
  --paper: #f7f3ea;
  --paper-strong: #fffaf0;
  --line: #ded6c7;
  --green: #176b5c;
  --blue: #2364aa;
  --amber: #c8832a;
  --coral: #bd4b3f;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(42, 38, 30, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1160px, calc(100% - 32px));
  margin: 16px auto 0;
  padding: 10px 12px;
  border: 1px solid rgba(32, 32, 29, 0.1);
  border-radius: 8px;
  background: rgba(247, 243, 234, 0.88);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 16px 40px rgba(31, 28, 22, 0.12);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.96rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  min-height: 40px;
  padding: 10px 12px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.main-nav a:hover {
  background: rgba(32, 32, 29, 0.06);
  color: var(--ink);
}

.main-nav a.is-active {
  background: rgba(23, 107, 92, 0.1);
  color: var(--green);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper-strong);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.8fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  width: min(1160px, calc(100% - 32px));
  min-height: calc(100svh - 84px);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 112px) 0 44px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(4.2rem, 12vw, 9.5rem);
  line-height: 0.86;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 28px 0 0;
  color: #4a4741;
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  font-weight: 900;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(32, 32, 29, 0.16);
}

.button.primary {
  background: var(--ink);
  color: var(--paper-strong);
}

.button.ghost {
  background: transparent;
}

.button.light {
  border-color: rgba(255, 255, 255, 0.48);
  color: var(--white);
}

.hero-visual {
  min-width: 0;
}

.device-frame {
  overflow: hidden;
  border: 1px solid rgba(32, 32, 29, 0.14);
  border-radius: 8px;
  background: #efe5d2;
  box-shadow: var(--shadow);
}

.device-top {
  display: flex;
  gap: 7px;
  padding: 16px;
  border-bottom: 1px solid rgba(32, 32, 29, 0.1);
}

.device-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
}

.device-top span:nth-child(2) {
  background: var(--amber);
}

.device-top span:nth-child(3) {
  background: var(--green);
}

.dashboard-preview {
  display: grid;
  gap: 16px;
  padding: clamp(18px, 4vw, 34px);
  background:
    linear-gradient(135deg, rgba(35, 100, 170, 0.12), transparent 36%),
    linear-gradient(315deg, rgba(23, 107, 92, 0.14), transparent 36%),
    var(--paper-strong);
}

.preview-card,
.metric,
.timeline {
  border: 1px solid rgba(32, 32, 29, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.preview-card.large {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding: 18px;
}

.preview-card.large > div {
  min-width: 0;
}

.preview-card img {
  width: 74px;
  height: 74px;
  border-radius: 18px;
  box-shadow: 0 12px 26px rgba(32, 32, 29, 0.18);
}

.preview-card.hero-project-preview {
  align-items: stretch;
}

.preview-card.hero-project-preview img {
  width: 112px;
  height: 84px;
  border-radius: 12px;
  object-fit: cover;
}

.preview-card span,
.metric span,
.project-type {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.preview-card strong,
.metric strong {
  display: block;
  margin-top: 4px;
  font-size: 1.15rem;
  overflow-wrap: anywhere;
}

.preview-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 16px;
}

.metric {
  padding: 18px;
}

.timeline {
  display: grid;
  gap: 13px;
  padding: 18px;
}

.timeline span {
  display: block;
  width: var(--size);
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.intro-band,
.section,
.contact-section,
.site-footer {
  width: min(1160px, calc(100% - 32px));
  margin-inline: auto;
}

.intro-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.intro-item {
  min-height: 190px;
  padding: 26px;
  background: var(--paper-strong);
}

.mini-icon {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 900;
}

.intro-item strong {
  display: block;
  font-size: 1.2rem;
}

.intro-item p,
.section-heading p,
.project-content p,
.service p,
.process-step p,
.contact-copy p {
  color: var(--muted);
}

.section {
  padding: clamp(72px, 10vw, 124px) 0 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

.section-heading h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.section-heading p {
  margin: 18px 0 0;
  font-size: 1.05rem;
}

.portfolio-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.portfolio-metrics > div {
  min-height: 142px;
  padding: 22px;
  background:
    linear-gradient(135deg, rgba(23, 107, 92, 0.08), transparent 42%),
    var(--paper-strong);
}

.portfolio-metrics span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--green);
  font-size: 0.86rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portfolio-metrics strong {
  display: block;
  font-size: 1.16rem;
  line-height: 1.12;
}

.portfolio-metrics p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  min-height: 278px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-strong);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 160ms ease;
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--lift, 0px));
}

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(23, 107, 92, 0.1), transparent 65%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease;
}

.project-card:hover {
  --lift: -3px;
  border-color: rgba(23, 107, 92, 0.32);
  box-shadow: 0 18px 52px rgba(32, 32, 29, 0.13);
}

.project-card:hover::after {
  opacity: 1;
}

.project-card.is-filtered-out {
  display: none;
}

.project-card.pop {
  animation: card-pop 380ms ease;
}

@keyframes card-pop {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.filter-btn {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper-strong);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 800;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.filter-btn:hover {
  border-color: rgba(23, 107, 92, 0.4);
  color: var(--green);
  transform: translateY(-2px);
}

.filter-btn.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper-strong);
}

.project-card.featured {
  grid-column: 1 / -1;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1fr);
  min-height: 330px;
}

.project-media {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 28px;
}

.project-media img {
  width: min(170px, 78%);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 26px;
  box-shadow: 0 20px 34px rgba(25, 39, 48, 0.24);
}

.app-gradient {
  background:
    radial-gradient(circle at 28% 24%, rgba(255, 255, 255, 0.9), transparent 24%),
    linear-gradient(135deg, #dfeef8, #e8c86b 48%, #e0634f);
}

.book-mark,
.assistant-mark,
.tithe-mark,
.school-mark {
  background: #e8efe6;
}

.assistant-mark {
  background: #e7ebf5;
}

.tithe-mark {
  background: #f1e4c9;
}

.school-mark {
  background: #eef0dc;
}

.fibra-mark {
  background:
    radial-gradient(circle at 28% 24%, rgba(255, 255, 255, 0.7), transparent 30%),
    linear-gradient(135deg, #d4eaf8, #b8d4f0 48%, #c4d8f5);
}

.fibra-mark img {
  width: min(176px, 78%);
  border-radius: 16px;
  box-shadow: 0 18px 34px rgba(10, 60, 120, 0.22);
}

.mata-verde-mark {
  background:
    radial-gradient(circle at 28% 24%, rgba(0, 255, 100, 0.12), transparent 30%),
    linear-gradient(135deg, #0d2010, #162019 50%, #0f1a12);
}

.mata-verde-mark img {
  width: min(176px, 78%);
  border-radius: 16px;
  box-shadow: 0 18px 34px rgba(0, 80, 30, 0.5);
}

.zip-telecom-mark {
  background:
    radial-gradient(circle at 28% 24%, rgba(255, 100, 60, 0.18), transparent 34%),
    linear-gradient(135deg, #1a0505, #2e0808 52%, #150404);
}

.zip-telecom-mark img {
  width: min(186px, 82%);
  border-radius: 50%;
  box-shadow: 0 18px 36px rgba(180, 20, 20, 0.5);
}

.netmania-mark {
  background:
    radial-gradient(circle at 30% 26%, rgba(64, 160, 220, 0.24), transparent 38%),
    linear-gradient(135deg, #0a2540, #11395c 52%, #081d33);
}

.netmania-mark img {
  width: min(230px, 86%);
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  filter: drop-shadow(0 14px 26px rgba(6, 32, 64, 0.55));
}

.ispdesk-mark {
  background:
    radial-gradient(circle at 30% 26%, rgba(100, 200, 255, 0.18), transparent 36%),
    linear-gradient(135deg, #e8f4ff, #f0f8ff 52%, #e0effa);
}

.ispdesk-mark img {
  width: min(172px, 78%);
  border-radius: 0;
  filter: drop-shadow(0 16px 28px rgba(10, 60, 160, 0.22));
}

.educaplay-mark {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.82), transparent 24%),
    linear-gradient(135deg, #b8f0df, #e8f0ff 52%, #ffe2a6);
}

.project-media.screenshot-media {
  padding: clamp(18px, 4vw, 36px);
}

.project-media.screenshot-media img {
  width: min(520px, 94%);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(32, 32, 29, 0.12);
  border-radius: 12px;
  box-shadow: 0 22px 42px rgba(20, 83, 45, 0.22);
}

.book-mark span,
.assistant-mark span,
.tithe-mark span {
  display: grid;
  place-items: center;
  width: 104px;
  height: 104px;
  border: 1px solid rgba(32, 32, 29, 0.14);
  border-radius: 24px;
  background: var(--paper-strong);
  color: var(--ink);
  font-size: 1.5rem;
  font-weight: 900;
  box-shadow: 0 18px 34px rgba(32, 32, 29, 0.14);
}

.school-mark img {
  width: min(160px, 74%);
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
}

.book-mark img {
  width: min(176px, 78%);
  border-radius: 24px;
  box-shadow: 0 18px 34px rgba(12, 48, 31, 0.22);
}

.assistant-mark img {
  width: min(176px, 78%);
  border-radius: 24px;
  box-shadow: 0 18px 34px rgba(24, 58, 108, 0.2);
}

.tithe-mark img {
  width: min(176px, 78%);
  border-radius: 24px;
  box-shadow: 0 18px 34px rgba(92, 14, 15, 0.22);
}

.project-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(24px, 4vw, 42px);
}

.project-kickers {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 12px;
}

.project-kickers span {
  padding: 6px 9px;
  border: 1px solid rgba(23, 107, 92, 0.18);
  border-radius: 7px;
  background: rgba(23, 107, 92, 0.08);
  color: var(--green);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.project-content h3,
.service h3,
.process-step h3 {
  margin: 8px 0 0;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.06;
}

.project-content p {
  margin: 16px 0 0;
}

.store-availability {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: 14px;
  padding: 8px 11px;
  border: 1px solid rgba(23, 107, 92, 0.2);
  border-radius: 7px;
  background: rgba(23, 107, 92, 0.08);
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 850;
  line-height: 1.25;
}

.store-availability.local-only {
  border-color: rgba(104, 100, 93, 0.2);
  background: rgba(104, 100, 93, 0.08);
  color: #5b554d;
}

.store-availability.whatsapp-only {
  border-color: rgba(18, 124, 95, 0.22);
  background: rgba(18, 124, 95, 0.1);
  color: #11755d;
}

.store-availability.ai-ready {
  border-color: rgba(35, 100, 170, 0.2);
  background: rgba(35, 100, 170, 0.08);
  color: #1f5b99;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.tags span {
  padding: 7px 10px;
  border: 1px solid rgba(32, 32, 29, 0.13);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: #4b463e;
  font-size: 0.78rem;
  font-weight: 800;
}

.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  min-height: 42px;
  margin-top: 16px;
  padding: 10px 14px;
  border-radius: 7px;
  background: var(--green);
  color: var(--white);
  font-size: 0.86rem;
  font-weight: 900;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.project-link:hover {
  background: #125a4e;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(23, 107, 92, 0.32);
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-link.secondary {
  border: 1px solid rgba(23, 107, 92, 0.32);
  background: transparent;
  color: var(--green);
}

.services-section {
  padding-top: 110px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
  gap: 1px;
}

.service {
  min-height: 250px;
  padding: 24px;
  background: var(--paper-strong);
}

.service-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 7px;
  background: var(--green);
  color: var(--white);
  font-weight: 900;
}

.service:nth-child(2) .service-icon {
  background: var(--blue);
}

.service:nth-child(3) .service-icon {
  background: var(--amber);
}

.service:nth-child(4) .service-icon {
  background: var(--coral);
}

.process-section {
  padding-top: 110px;
}

.process-list {
  display: grid;
  gap: 14px;
}

.process-step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-strong);
}

.process-step > span {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--paper-strong);
  font-weight: 900;
}

.process-step h3 {
  margin-top: 0;
}

.process-step p {
  margin-bottom: 0;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  margin-top: clamp(80px, 12vw, 132px);
  padding: clamp(30px, 6vw, 54px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(23, 107, 92, 0.95), rgba(32, 32, 29, 0.98)),
    var(--ink);
  color: var(--white);
}

.contact-section .eyebrow,
.contact-copy p {
  color: rgba(255, 255, 255, 0.74);
}

.contact-copy {
  max-width: 760px;
}

.contact-copy p {
  font-size: 1.05rem;
}

.contact-list {
  display: grid;
  gap: 8px;
  margin-top: 22px;
}

.contact-list a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  font-weight: 800;
}

.scroll-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-top: 32px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: color 180ms ease, border-color 180ms ease;
  animation: bounce-down 2.2s ease-in-out infinite;
}

.scroll-hint:hover {
  color: var(--green);
  border-color: rgba(23, 107, 92, 0.4);
}

@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(7px); }
}

.sobre-section {
  width: min(1160px, calc(100% - 32px));
  margin-inline: auto;
  padding-top: clamp(56px, 8vw, 96px);
}

.sobre-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(28px, 5vw, 60px);
  align-items: start;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-strong);
}

.sobre-avatar {
  flex-shrink: 0;
}

.sobre-avatar-placeholder {
  display: grid;
  place-items: center;
  width: 116px;
  height: 116px;
  border-radius: 16px;
  background: var(--ink);
  color: var(--paper-strong);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -1px;
}

.sobre-avatar img {
  width: 160px;
  height: 160px;
  border-radius: 16px;
  object-fit: cover;
  object-position: center top;
  box-shadow: 0 22px 48px rgba(32, 32, 29, 0.22);
  border: 1px solid var(--line);
}

.sobre-copy h2 {
  margin: 8px 0 0;
  font-size: clamp(1.5rem, 3.2vw, 2.6rem);
  line-height: 1.06;
}

.sobre-copy p {
  margin: 16px 0 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 1.03rem;
}

.service-icon svg {
  display: block;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js .intro-band .reveal:nth-child(2),
.js .services-grid .reveal:nth-child(2) {
  transition-delay: 90ms;
}

.js .intro-band .reveal:nth-child(3),
.js .services-grid .reveal:nth-child(3) {
  transition-delay: 180ms;
}

.js .services-grid .reveal:nth-child(4) {
  transition-delay: 270ms;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 300;
  height: 3px;
  pointer-events: none;
}

.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.back-top {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 190;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper-strong);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(32, 32, 29, 0.18);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease, background 160ms ease, color 160ms ease;
}

.back-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-top:hover {
  background: var(--ink);
  color: var(--paper-strong);
}

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    max-width: 620px;
  }

  .intro-band,
  .portfolio-metrics,
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects-grid,
  .project-card,
  .project-card.featured,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .project-media {
    min-height: 220px;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .menu-button {
    display: block;
    flex: 0 0 auto;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper-strong);
    box-shadow: 0 18px 42px rgba(32, 32, 29, 0.15);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    width: 100%;
  }
}

@media (max-width: 680px) {
  .site-header {
    width: calc(100% - 20px);
    margin-top: 10px;
  }

  h1 {
    font-size: clamp(3.3rem, 21vw, 5.4rem);
  }

  .hero,
  .intro-band,
  .section,
  .contact-section,
  .site-footer {
    width: calc(100% - 20px);
  }

  .hero {
    padding-top: 46px;
  }

  .hero-actions,
  .contact-actions,
  .button {
    width: 100%;
  }

  .preview-grid,
  .intro-band,
  .portfolio-metrics,
  .services-grid,
  .process-step {
    grid-template-columns: 1fr;
  }

  .project-card,
  .project-card.featured {
    min-height: auto;
  }

  .project-media {
    min-height: 190px;
  }

  .site-footer {
    flex-direction: column;
  }

  .sobre-inner {
    grid-template-columns: 1fr;
  }

  .scroll-hint {
    display: none;
  }

  .filter-bar {
    gap: 8px;
  }

  .filter-btn {
    flex: 1 1 calc(50% - 8px);
    padding: 10px 12px;
    font-size: 0.84rem;
  }

  .netmania-mark img {
    width: min(200px, 80%);
  }
}

/* ── WhatsApp Float ── */
.wz-wrap {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.wz-popup {
  position: relative;
  width: 300px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.18);
  overflow: hidden;
  transform: scale(0.9) translateY(14px);
  opacity: 0;
  pointer-events: none;
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 260ms ease;
  transform-origin: bottom right;
}

.wz-popup.is-open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.wz-close {
  position: absolute;
  top: 10px;
  right: 10px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.15);
  color: #fff;
  cursor: pointer;
  z-index: 2;
  transition: background 160ms ease;
}

.wz-close:hover {
  background: rgba(0, 0, 0, 0.3);
}

.wz-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 20px 22px;
  color: #111;
  cursor: pointer;
  transition: background 160ms ease;
}

.wz-card:hover {
  background: #f7f7f7;
}

.wz-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
  border: 2px solid #25d366;
}

.wz-message p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #333;
}

.wz-message p:first-child {
  font-weight: 700;
  color: #111;
  margin-bottom: 4px;
}

.wz-btn {
  position: relative;
  width: 60px;
  height: 60px;
  border: none;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
  transition: transform 200ms ease, box-shadow 200ms ease;
  animation: wz-pulse 3s ease-in-out 3.5s 3;
}

.wz-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 36px rgba(37, 211, 102, 0.6);
}

.wz-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #e53e3e;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 900;
  display: grid;
  place-items: center;
  border: 2px solid var(--paper);
  transition: opacity 200ms ease, transform 200ms ease;
}

.wz-badge.is-hidden {
  opacity: 0;
  transform: scale(0);
  pointer-events: none;
}

@keyframes wz-pulse {
  0%, 100% { box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5); }
  50% { box-shadow: 0 6px 40px rgba(37, 211, 102, 0.8), 0 0 0 10px rgba(37, 211, 102, 0.12); }
}

@media (max-width: 480px) {
  .wz-wrap {
    right: 16px;
    bottom: 16px;
  }

  .wz-popup {
    width: calc(100vw - 32px);
  }

  .back-top {
    left: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
  }
}

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

  .reveal,
  .js .reveal {
    opacity: 1;
    transform: none;
  }
}