:root {
  --background: #f7f7f3;
  --surface: #ffffff;
  --text: #1d252c;
  --muted: #505c65;
  --border: #dcdfda;
  --accent: #1f6d8b;
  --accent-dark: #174f66;
  --dark: #192129;
  --heading: "Space Grotesk", sans-serif;
  --body: "Inter", sans-serif;
  --container: 1240px;
  --header-height: 84px;
  --radius: 7px;
  --shadow: 0 24px 65px rgba(24, 32, 39, 0.13);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.modal-open,
body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  width: 100%;
}

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

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 10px 14px;
  background: var(--text);
  color: #fff;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease, backdrop-filter 220ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(29, 37, 44, 0.1);
  background: rgba(248, 248, 245, 0.86);
  box-shadow: 0 10px 35px rgba(25, 33, 41, 0.06);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.navigation {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 34px;
}

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

.brand-symbol {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--text);
  color: #fff;
  font-family: var(--heading);
  font-weight: 700;
}

.brand-name {
  font-family: var(--heading);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.main-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav-link {
  position: relative;
  color: #414b53;
  font-size: 13px;
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 200ms ease;
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.is-active {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  margin: 7px auto;
  background: var(--text);
  transition: transform 200ms ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 23px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-header,
.button-dark {
  background: var(--text);
  color: #fff;
}

.button-header {
  min-height: 43px;
  padding-inline: 18px;
  white-space: nowrap;
}

.button-primary {
  background: var(--accent);
  color: #fff;
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  border-color: #bfc4c0;
}

.button-secondary:hover {
  border-color: var(--text);
}

.button-light-outline {
  border-color: rgba(255, 255, 255, 0.48);
  color: #fff;
}

.button-light-outline:hover {
  border-color: #fff;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 76px) 0 80px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(400px, 0.84fr);
  align-items: center;
  gap: clamp(70px, 8vw, 125px);
}

.eyebrow,
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-label::before {
  content: "";
  width: 31px;
  height: 1px;
  background: currentColor;
  flex-shrink: 0;
}

.hero-title {
  max-width: 680px;
  margin-top: 28px;
  font-family: var(--heading);
  font-size: clamp(48px, 5.1vw, 76px);
  font-weight: 600;
  line-height: 1.01;
  letter-spacing: -0.058em;
}

.hero-title span,
.hero-title strong {
  display: block;
}

.hero-title strong {
  margin-top: 17px;
  color: var(--accent);
  font-weight: inherit;
}

.hero-description {
  max-width: 575px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 34px;
}

.hero-detail {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-top: 42px;
  color: var(--muted);
  font-size: 13px;
}

.hero-detail span {
  width: 45px;
  height: 1px;
  background: #a8aeaa;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-visual img {
  height: 620px;
  object-fit: cover;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 23, 28, 0.72), transparent 58%);
}


.hero-concept-link {
  display: block;
  color: inherit;
}

.hero-concept-link img {
  transition: transform 650ms cubic-bezier(.2,.7,.2,1), filter 300ms ease;
}

.hero-concept-link:hover img {
  transform: scale(1.035);
  filter: saturate(.92) contrast(1.02);
}

.hero-concept-action {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  backdrop-filter: blur(10px);
  transition: transform 180ms ease, background-color 180ms ease;
}

.hero-concept-link:hover .hero-concept-action {
  transform: translateY(-2px);
  background: #fff;
}

.hero-concept-action b {
  font-size: 15px;
  transition: transform 180ms ease;
}

.hero-concept-link:hover .hero-concept-action b {
  transform: rotate(45deg);
}

.hero-visual-overlay {
  position: absolute;
  right: 34px;
  bottom: 32px;
  left: 34px;
  z-index: 2;
  color: #fff;
}

.hero-visual-overlay p,
.hero-visual-overlay span {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-visual-overlay h2 {
  margin: 7px 0 10px;
  font-family: var(--heading);
  font-size: 36px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.problem-section,
.projects-section,
.reasons-section {
  padding: 130px 0;
}

.problem-section,
.reasons-section {
  background: var(--surface);
}

.section-heading {
  margin-bottom: 70px;
}

.three-columns {
  display: grid;
  grid-template-columns: 0.65fr 1.45fr 0.9fr;
  align-items: start;
  gap: 55px;
  padding-bottom: 65px;
  border-bottom: 1px solid var(--border);
}

.section-heading h2 {
  font-family: var(--heading);
  font-size: clamp(43px, 4.6vw, 69px);
  font-weight: 600;
  line-height: 1.03;
  letter-spacing: -0.054em;
}

.section-heading h2 span {
  display: block;
  color: var(--accent);
}

.section-copy {
  color: var(--muted);
  font-size: 17px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid var(--border);
}

.problem-card {
  min-height: 410px;
  padding: 42px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color 200ms ease, transform 200ms ease;
}

.problem-card:hover {
  background: var(--background);
  transform: translateY(-4px);
}

.card-number {
  color: var(--accent);
  font-family: var(--heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.line-icon {
  width: 68px;
  height: 68px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  margin: 55px 0 35px;
  padding: 16px;
  border: 1px solid #c6cbc7;
  border-radius: 50%;
}

.line-icon span {
  height: 2px;
  background: var(--text);
}

.line-icon span:nth-child(1) { width: 70%; }
.line-icon span:nth-child(2) { width: 100%; }
.line-icon span:nth-child(3) { width: 48%; }

.information-icon {
  align-items: center;
}

.information-icon span:first-child {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
}

.confidence-icon {
  align-items: center;
  border-radius: 20px;
}

.confidence-icon span:first-child {
  width: 27px;
  height: 27px;
  border: 2px solid var(--text);
  border-radius: 50%;
  background: transparent;
}

.confidence-icon span:last-child {
  width: 38px;
  height: 17px;
  border: 2px solid var(--text);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background: transparent;
}

.problem-card h3,
.reason-card h3 {
  margin-bottom: 17px;
  font-family: var(--heading);
  font-size: clamp(25px, 2.4vw, 35px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.problem-card p,
.reason-card p {
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.78;
}

.section-closing {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 50px;
  padding-top: 52px;
}

.section-closing p {
  color: var(--muted);
  font-size: 14px;
}

.section-closing strong {
  max-width: 690px;
  font-family: var(--heading);
  font-size: clamp(25px, 2.5vw, 37px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.035em;
  text-align: right;
}

.process-section {
  position: relative;
  overflow: hidden;
  padding: 130px 0;
  background: var(--dark);
  color: #fff;
}

.process-section::before,
.final-cta::before {
  content: "";
  position: absolute;
  width: 650px;
  height: 650px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.process-section::before {
  top: -340px;
  right: -240px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  align-items: end;
  gap: 90px;
}

.section-label-light {
  color: #8fc2d7;
}

.process-copy p:first-child {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--heading);
  font-size: 20px;
  line-height: 1.4;
}

.process-copy p:last-child {
  color: rgba(255, 255, 255, 0.58);
}

.process-list {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.process-step {
  display: grid;
  grid-template-columns: 150px minmax(220px, 0.75fr) minmax(300px, 1.25fr) 90px;
  align-items: center;
  gap: 45px;
  min-height: 225px;
  padding: 38px 20px 38px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  transition: background-color 220ms ease, padding-left 220ms ease;
}

.process-step:hover {
  padding-left: 22px;
  background: rgba(255, 255, 255, 0.035);
}

.process-meta {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.process-meta span {
  color: #8fc2d7;
  font-family: var(--heading);
  font-size: 12px;
}

.process-meta small {
  color: rgba(255, 255, 255, 0.42);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.process-step h3 {
  font-family: var(--heading);
  font-size: clamp(37px, 3.7vw, 54px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.05em;
}

.process-step > p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15.5px;
  line-height: 1.75;
}

.process-symbol {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  justify-self: end;
  border: 1px solid rgba(255, 255, 255, 0.23);
  border-radius: 50%;
  color: #8fc2d7;
  font-family: var(--heading);
  font-size: 25px;
}

.code-symbol {
  font-size: 17px;
}

.process-closing p {
  color: rgba(255, 255, 255, 0.43);
}

.process-closing strong {
  color: rgba(255, 255, 255, 0.92);
}

.projects-heading,
.reasons-section .split-heading {
  margin-bottom: 70px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 68px 30px;
}

.project-card-featured {
  grid-column: 1 / -1;
}

.project-open {
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
}

.project-image {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  border-radius: var(--radius);
  background: #d3d3cc;
}

.project-card-featured .project-image {
  min-height: 610px;
}

.project-image img {
  height: 430px;
  object-fit: cover;
  transition: transform 650ms cubic-bezier(.2,.7,.2,1), filter 300ms ease;
}

.project-card-featured .project-image img {
  height: 610px;
}

.project-open:hover .project-image img {
  transform: scale(1.035);
  filter: saturate(0.92);
}

.project-tag {
  position: absolute;
  top: 24px;
  left: 24px;
  padding: 8px 12px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.88);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.project-arrow {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  font-size: 19px;
  transition: transform 200ms ease;
}

.project-open:hover .project-arrow {
  transform: rotate(45deg);
}

.project-info {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 70px;
  padding-top: 26px;
}

.project-info-small {
  grid-template-columns: 1fr;
  gap: 16px;
}

.project-info h3 {
  margin-top: 12px;
  font-family: var(--heading);
  font-size: clamp(30px, 3vw, 44px);
  font-weight: 500;
  line-height: 1.09;
  letter-spacing: -0.045em;
}

.project-info p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.reason-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  padding: 40px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color 200ms ease, transform 200ms ease;
}

.reason-card:hover {
  background: var(--background);
  transform: translateY(-4px);
}

.reason-card h3 {
  margin-top: auto;
}

.final-cta {
  position: relative;
  overflow: hidden;
  padding: 135px 0;
  background: var(--accent);
  color: #fff;
}

.final-cta::before {
  top: -350px;
  right: -220px;
}

.final-cta-layout {
  position: relative;
  z-index: 2;
}

.final-cta-content {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  align-items: end;
  gap: 90px;
  margin-top: 30px;
}

.final-cta h2 {
  font-family: var(--heading);
  font-size: clamp(50px, 5.5vw, 80px);
  font-weight: 500;
  line-height: 1.01;
  letter-spacing: -0.058em;
}

.final-cta h2 span {
  display: block;
  color: rgba(255, 255, 255, 0.68);
}

.final-cta-details > p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 1.75;
}

.response-time {
  margin-top: 16px;
  font-weight: 600;
}

.final-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-top: 30px;
}

.site-footer {
  padding: 78px 0 28px;
  background: #131a20;
  color: #fff;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 0.65fr 0.85fr;
  gap: 80px;
  padding-bottom: 65px;
}

.footer-brand p {
  max-width: 430px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14.5px;
}

.footer-brand-symbol {
  background: #fff;
  color: var(--text);
}

.footer-label {
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
  font-style: normal;
}

.footer-links a,
.footer-links span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.35);
  font-size: 11px;
}

.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 900;
  min-height: 49px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 8px;
  border-radius: 999px;
  background: #1f7a4d;
  color: #fff;
  box-shadow: 0 13px 32px rgba(16, 61, 40, 0.26);
  font-size: 12px;
  transition: transform 180ms ease;
}

.whatsapp-float:hover {
  transform: translateY(-3px);
}

.whatsapp-float span {
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  font-size: 10px;
  font-weight: 700;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: visibility 200ms ease, opacity 200ms ease;
}

.modal.is-open {
  visibility: visible;
  opacity: 1;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 18, 22, 0.72);
  backdrop-filter: blur(7px);
}

.modal-panel {
  position: relative;
  z-index: 2;
  width: min(100%, 1120px);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.28);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 4;
  width: 42px;
  height: 42px;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  font-size: 25px;
  line-height: 1;
  backdrop-filter: blur(8px);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(340px, 0.9fr) minmax(520px, 1.1fr);
  align-items: stretch;
}

.contact-intro {
  min-height: 100%;
  padding: 72px 58px;
  background: var(--dark);
  color: #fff;
}

.contact-intro h2,
.project-panel h2 {
  margin-top: 25px;
  font-family: var(--heading);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: -0.055em;
}

.contact-intro > p:not(.section-label) {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.62);
}

.contact-alternative {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.contact-alternative span {
  display: block;
  margin-bottom: 9px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
}

.contact-alternative a {
  color: #8fc2d7;
  font-weight: 600;
}

.contact-form {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 68px 58px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  font-weight: 600;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid #cfd4cf;
  border-radius: 4px;
  background: #fff;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.field input,
.field select {
  min-height: 54px;
  padding: 0 13px;
}

.field textarea {
  min-height: 155px;
  resize: vertical;
  padding: 13px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 109, 139, 0.1);
}

.privacy-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 22px 0;
  color: var(--muted);
  font-size: 12px;
}

.privacy-check input {
  margin-top: 4px;
}

.form-submit {
  width: 100%;
}

.submit-loading {
  display: none;
}

.contact-form.is-loading .submit-text {
  display: none;
}

.contact-form.is-loading .submit-loading {
  display: inline;
}

.form-status {
  min-height: 24px;
  margin-top: 13px;
  font-size: 13px;
}

.form-status.is-success {
  color: #23734a;
}

.form-status.is-error {
  color: #a33131;
}

.honeypot {
  position: absolute !important;
  left: -9999px !important;
}


.reveal {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(5px);
  transition: opacity 720ms cubic-bezier(.2,.7,.2,1), transform 720ms cubic-bezier(.2,.7,.2,1), filter 720ms ease;
}

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

@media (max-width: 1080px) {
  .main-menu {
    gap: 18px;
  }

  .button-header {
    display: none;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(370px, 0.78fr);
    gap: 60px;
  }

  .process-step {
    grid-template-columns: 110px minmax(190px, 0.8fr) minmax(280px, 1.2fr) 75px;
    gap: 28px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 74px;
  }

  .container {
    width: min(calc(100% - 34px), var(--container));
  }

  .main-menu {
    position: fixed;
    inset: var(--header-height) 0 0;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 12px;
    padding: 38px;
    background: rgba(248, 248, 245, 0.98);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: visibility 200ms ease, opacity 200ms ease, transform 200ms ease;
  }

  .main-menu.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-link {
    font-family: var(--heading);
    font-size: clamp(34px, 8vw, 52px);
    font-weight: 500;
    letter-spacing: -0.04em;
  }

  .nav-link::after {
    bottom: 1px;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 65px);
  }

  .hero-layout,
  .three-columns,
  .split-heading,
  .final-cta-content {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    gap: 55px;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 520px;
    height: 520px;
  }

  .problem-section,
  .projects-section,
  .reasons-section,
  .process-section,
  .final-cta {
    padding: 90px 0;
  }

  .three-columns {
    gap: 25px;
    padding-bottom: 45px;
  }

  .section-copy {
    max-width: 650px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .problem-card {
    min-height: auto;
  }

  .section-closing {
    flex-direction: column;
    gap: 18px;
  }

  .section-closing strong {
    text-align: left;
  }

  .process-step {
    grid-template-columns: 70px 1fr 70px;
    gap: 22px;
  }

  .process-step > p {
    grid-column: 2 / 3;
  }

  .process-symbol {
    grid-column: 3;
    grid-row: 1 / 3;
  }

  .process-meta small {
    display: none;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card-featured {
    grid-column: auto;
  }

  .project-card-featured .project-image,
  .project-card-featured .project-image img,
  .project-image,
  .project-image img {
    min-height: 470px;
    height: 470px;
  }

  .project-info {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .reasons-grid {
    grid-template-columns: 1fr;
  }

  .reason-card {
    min-height: 270px;
  }

  .final-cta-content {
    gap: 38px;
  }

  .final-cta-details {
    max-width: 650px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .contact-panel {
    grid-template-columns: 1fr;
  }

  .contact-intro,
  .contact-form {
    padding: 52px 38px;
  }

  .contact-intro {
    min-height: auto;
  }

  .contact-alternative {
    margin-top: 35px;
  }
}

@media (max-width: 560px) {
  .hero-title,
  .section-heading h2,
  .final-cta h2 {
    font-size: 42px;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .hero-visual,
  .hero-visual img {
    min-height: 440px;
    height: 440px;
  }

  .hero-visual-overlay {
    right: 22px;
    bottom: 22px;
    left: 22px;
  }

  .hero-visual-overlay h2 {
    font-size: 30px;
  }

  .problem-card,
  .reason-card {
    padding: 30px 24px;
  }

  .process-step {
    grid-template-columns: 44px 1fr;
  }

  .process-step h3 {
    font-size: 37px;
  }

  .process-symbol {
    display: none;
  }

  .process-step > p {
    grid-column: 2;
  }

  .project-card-featured .project-image,
  .project-card-featured .project-image img,
  .project-image,
  .project-image img {
    min-height: 340px;
    height: 340px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .whatsapp-float {
    right: 14px;
    bottom: 14px;
    padding-right: 10px;
  }

  .whatsapp-float strong {
    display: none;
  }

  .modal {
    padding: 0;
  }

  .modal-panel {
    width: 100%;
    min-height: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .contact-intro,
  .contact-form,
  .project-panel {
    padding: 48px 22px;
  }

  .contact-intro h2,
  .project-panel h2 {
    font-size: 39px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .field-full {
    grid-column: auto;
  }

  .project-modal-details {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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


/* Colección conceptual */
.concept-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: -25px 0 42px;
}

.concept-filter {
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 600 11px var(--body);
}

.concept-filter:hover,
.concept-filter.is-active {
  border-color: var(--text);
  background: var(--text);
  color: #fff;
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 52px 22px;
}

.concept-card {
  min-width: 0;
}

.concept-card.is-hidden {
  display: none;
}

.concept-card-link {
  display: block;
}

.concept-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 7px;
  background: #d9d9d3;
}

.concept-card-image img {
  height: 100%;
  object-fit: cover;
  transition: transform 650ms cubic-bezier(.2,.7,.2,1), filter 250ms ease;
}

.concept-card-link:hover .concept-card-image img {
  transform: scale(1.045);
  filter: saturate(.9);
}

.concept-index {
  position: absolute;
  top: 17px;
  left: 17px;
  padding: 7px 9px;
  border-radius: 4px;
  background: rgba(255,255,255,.9);
  font: 700 10px var(--heading);
}

.concept-open {
  position: absolute;
  right: 17px;
  bottom: 17px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  font-size: 17px;
  transition: transform 200ms ease;
}

.concept-card-link:hover .concept-open {
  transform: rotate(45deg);
}

.concept-card-body {
  padding-top: 18px;
}

.concept-card-body > p {
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.concept-card-body h3 {
  margin-top: 8px;
  font-family: var(--heading);
  font-size: clamp(25px, 2.3vw, 34px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -.04em;
}

.concept-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 17px;
  padding-top: 15px;
  border-top: 1px solid var(--border);
}

.concept-meta span {
  color: var(--text);
  font-size: 11px;
  font-weight: 600;
}

.concept-meta small {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .concept-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 560px) {
  .concept-grid { grid-template-columns: 1fr; }
  .concept-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 7px;
  }
  .concept-filter { flex: 0 0 auto; }
}