:root {
  --ink: #1e1e1c;
  --paper: #f7f4ef;
  --brass: #b08d57;
  --brass-dim: #9a7947;
  --muted: rgba(30, 30, 28, 0.58);
  --muted-strong: rgba(30, 30, 28, 0.74);
  --rule: rgba(30, 30, 28, 0.14);
  --rule-soft: rgba(30, 30, 28, 0.08);
  --paper-muted: rgba(247, 244, 239, 0.62);
  --paper-rule: rgba(247, 244, 239, 0.16);
  --container: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --section: clamp(76px, 11vw, 148px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  font-feature-settings: "ss01", "cv05";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-weight: 500;
  letter-spacing: -0.028em;
  line-height: 1.08;
  margin: 0;
}

p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Lockup ---------- */

.lockup {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.62em;
  line-height: 1;
}

.lockup .mark {
  width: auto;
  height: 1.85em;
  overflow: visible;
}

.lockup .mark-stem { fill: var(--ink); }
.lockup .mark-diag { fill: var(--brass); }

.lockup .wordmark {
  font-size: 0.86em;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  padding-left: 0.24em;
  white-space: nowrap;
}

.lockup .tagline {
  font-size: 0.42em;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 0.26em;
  white-space: nowrap;
}

.lockup .dots {
  display: flex;
  gap: 0.34em;
  margin-top: 0.2em;
}

.lockup .dots i {
  width: 0.16em;
  height: 0.16em;
  border-radius: 50%;
  background: var(--muted);
  display: block;
}

.lockup .dots i:nth-child(2) { background: var(--brass); }

.lockup--invert .mark-stem { fill: var(--paper); }
.lockup--invert { color: var(--paper); }
.lockup--invert .tagline { color: var(--paper-muted); }
.lockup--invert .dots i { background: var(--paper-muted); }
.lockup--invert .dots i:nth-child(2) { background: var(--brass); }

.lockup--header { font-size: 15px; gap: 0.5em; }
.lockup--footer { font-size: 26px; align-items: flex-start; }
.lockup--footer .wordmark,
.lockup--footer .tagline { align-self: flex-start; }

/* ---------- Eyebrow / rules ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted-strong);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--brass);
  flex: none;
}

.eyebrow--invert { color: var(--paper-muted); }

.rule { height: 1px; background: var(--rule); border: 0; margin: 0; }

/* ---------- Buttons ---------- */

.btn {
  --btn-bg: var(--brass);
  --btn-fg: #fffdf9;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bg);
  border-radius: 2px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease),
    border-color 0.35s var(--ease), transform 0.35s var(--ease);
}

.btn:hover { background: var(--brass-dim); border-color: var(--brass-dim); transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

.btn--outline {
  background: transparent;
  color: var(--brass-dim);
  border-color: var(--brass);
  padding: 11px 22px;
  font-size: 0.72rem;
}

.btn--outline:hover { background: var(--brass); color: #fffdf9; }

.btn--outline-invert {
  background: transparent;
  color: var(--paper);
  border-color: var(--brass);
}

.btn--outline-invert:hover { background: var(--brass); color: #17170f; border-color: var(--brass); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-strong);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--rule);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.link-arrow span { transition: transform 0.35s var(--ease); display: inline-block; }
.link-arrow:hover { color: var(--brass-dim); border-color: var(--brass); }
.link-arrow:hover span { transform: translateX(5px); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 239, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.site-header.is-stuck { border-bottom-color: var(--rule); }

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 92px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
}

.nav a {
  position: relative;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-strong);
  padding: 6px 0;
  transition: color 0.3s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--brass);
  transition: width 0.35s var(--ease);
}

.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav .btn--outline { display: none; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.nav-toggle i {
  position: absolute;
  left: 11px;
  width: 18px;
  height: 1px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle i:nth-child(1) { top: 15px; }
.nav-toggle i:nth-child(2) { top: 21px; }
.nav-toggle i:nth-child(3) { top: 27px; }

.nav-toggle[aria-expanded="true"] i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  padding-top: clamp(64px, 10vw, 128px);
  padding-bottom: var(--section);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6.6vw, 4.9rem);
  letter-spacing: -0.035em;
  max-width: 15ch;
  margin-top: 28px;
}

.hero h1 em {
  font-style: normal;
  position: relative;
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 2px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: left;
  animation: underline 1.1s 0.5s var(--ease) forwards;
}

@keyframes underline { to { transform: scaleX(1); } }

@media (prefers-reduced-motion: reduce) {
  .hero h1 em::after { animation: none; transform: scaleX(1); }
}

.hero-lead {
  max-width: 54ch;
  font-size: clamp(1.02rem, 1.35vw, 1.16rem);
  color: var(--muted-strong);
  margin-top: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
  margin-top: 46px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 56px);
  margin-top: clamp(56px, 8vw, 96px);
  padding-top: 26px;
  border-top: 1px solid var(--rule);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Sections ---------- */

.section { padding-block: var(--section); }
.section--tight { padding-block: clamp(64px, 8vw, 110px); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-bottom: clamp(48px, 6vw, 84px);
}

.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  max-width: 18ch;
}

.section-head p {
  color: var(--muted-strong);
  max-width: 46ch;
}

@media (min-width: 900px) {
  .section-head {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    column-gap: 60px;
  }
  .section-head .eyebrow { grid-column: 1 / -1; }
}

/* ---------- Services ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.service {
  padding: clamp(30px, 3.4vw, 48px);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition: background 0.4s var(--ease);
}

.service::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  height: 2px;
  width: 0;
  background: var(--brass);
  transition: width 0.5s var(--ease);
}

.service:hover { background: rgba(176, 141, 87, 0.05); }
.service:hover::before { width: 100%; }

.service .num {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--brass);
  display: block;
  margin-bottom: 22px;
}

.service h3 {
  font-size: 1.22rem;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.service p { color: var(--muted-strong); font-size: 0.95rem; }

/* ---------- Method ---------- */

.steps { border-top: 1px solid var(--rule); }

.step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding-block: clamp(28px, 3.4vw, 42px);
  border-bottom: 1px solid var(--rule);
  transition: padding-left 0.45s var(--ease);
}

.step .step-num {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  color: var(--brass);
}

.step h3 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); }
.step p { color: var(--muted-strong); max-width: 52ch; }

@media (min-width: 860px) {
  .step {
    grid-template-columns: 92px minmax(0, 300px) minmax(0, 1fr);
    align-items: baseline;
    column-gap: 40px;
  }
  .step .step-num { padding-top: 6px; }
  .step:hover { padding-left: 12px; }
}

/* ---------- Casos ---------- */

.casos-panel {
  border: 1px solid var(--rule);
  padding: clamp(34px, 5vw, 76px);
  display: grid;
  gap: 26px;
  background:
    linear-gradient(180deg, rgba(176, 141, 87, 0.055), rgba(176, 141, 87, 0)) ;
}

.casos-panel h2 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); max-width: 20ch; }
.casos-panel p { color: var(--muted-strong); max-width: 58ch; }

/* ---------- Dark statement ---------- */

.statement {
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(88px, 12vw, 168px);
}

.statement blockquote {
  margin: 30px 0 0;
  font-size: clamp(1.85rem, 4.6vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.032em;
  line-height: 1.12;
  max-width: 20ch;
}

.statement blockquote b { color: var(--brass); font-weight: 500; }

.statement p {
  color: var(--paper-muted);
  max-width: 46ch;
  margin-top: 30px;
}

.statement .btn { margin-top: 44px; }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(40px, 5vw, 72px);
}

@media (min-width: 940px) {
  .contact-grid { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
}

.contact-aside h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); margin-top: 26px; max-width: 16ch; }
.contact-aside p { color: var(--muted-strong); margin-top: 24px; max-width: 40ch; }

.contact-notes {
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  padding-top: 24px;
  display: grid;
  gap: 14px;
}

.contact-notes div {
  display: flex;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--muted-strong);
}

.contact-notes div::before { content: "—"; color: var(--brass); }

.form { display: grid; gap: 26px; }

.field { display: grid; gap: 9px; }

.field label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input,
.field textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 10px 2px 12px;
  font-size: 1rem;
  border-radius: 0;
  transition: border-color 0.3s var(--ease);
}

.field textarea { resize: vertical; min-height: 116px; line-height: 1.6; }

.field input:focus,
.field textarea:focus { outline: none; border-bottom-color: var(--brass); }

.field input::placeholder,
.field textarea::placeholder { color: rgba(30, 30, 28, 0.32); }

.field .err {
  font-size: 0.78rem;
  color: #9b3f2f;
  min-height: 0;
  display: none;
}

.field.has-error input,
.field.has-error textarea { border-bottom-color: #9b3f2f; }
.field.has-error .err { display: block; }

@media (min-width: 620px) {
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
}

.form-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  padding-top: 6px;
}

.form-footer small { color: var(--muted); font-size: 0.78rem; max-width: 34ch; }

.form-status {
  font-size: 0.9rem;
  color: #9b3f2f;
  display: none;
}

.form-status.is-visible { display: block; }

.btn[disabled] { opacity: 0.55; cursor: progress; }

.form-success {
  display: none;
  border: 1px solid var(--brass);
  padding: clamp(28px, 4vw, 48px);
  background: rgba(176, 141, 87, 0.06);
}

.form-success.is-visible {
  display: grid;
  gap: 16px;
  animation: fade-up 0.6s var(--ease) both;
}

.form-success h3 { font-size: 1.5rem; }
.form-success p { color: var(--muted-strong); max-width: 46ch; }

.form-success .tick {
  width: 40px;
  height: 40px;
  border: 1px solid var(--brass);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--brass);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: 40px;
}

.footer-grid {
  display: grid;
  gap: 44px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--paper-rule);
}

@media (min-width: 800px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
}

.footer-links a {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-muted);
  transition: color 0.3s var(--ease);
}

.footer-links a:hover { color: var(--brass); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 26px;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-muted);
}

/* ---------- Reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0ms);
}

[data-reveal].is-in { opacity: 1; transform: none; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; }
}

/* ---------- Mobile nav ---------- */

@media (max-width: 900px) {
  .site-header .container { min-height: 76px; }
  .nav-toggle { display: block; }
  .header-actions .btn--outline { display: none; }

  .nav {
    position: fixed;
    inset: 76px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 8px var(--gutter) 28px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }

  .nav.is-open { opacity: 1; transform: none; pointer-events: auto; }

  .nav a { padding: 16px 0; border-bottom: 1px solid var(--rule-soft); font-size: 0.86rem; }
  .nav .btn--outline { display: inline-flex; margin-top: 22px; align-self: flex-start; }
}