/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:          #0A0A09;
  --bg-raise:    #101010;
  --ink:         #F4F4F1;
  --ink-mute:    #9B9B95;
  --accent:      #96AA86;
  --line:        rgba(244, 244, 241, .14);
  --line-strong: rgba(244, 244, 241, .28);

  --sans:  "Manrope", -apple-system, "Segoe UI", sans-serif;
  --head:  "Montserrat", -apple-system, "Segoe UI", sans-serif;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --container: 1240px;
  --section-pad: clamp(4.5rem, 9vw, 8rem);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; line-height: 1.1; }
ol, ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: var(--bg); }

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 4px;
}

/* =============================================================
   3. Utilities
   ============================================================= */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 720px)  { .container { padding-inline: 2.5rem; } }
@media (min-width: 1280px) { .container { padding-inline: 3rem; } }

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .7rem 1.1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; font-weight: 600; font-size: .85rem;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.kicker {
  font-family: var(--head);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #619181;
}

.link-arrow {
  position: relative;
  font-family: var(--head);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .04em;
  padding-bottom: .3rem;
  display: inline-block;
}
.link-arrow::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: currentColor;
  transform: scaleX(1); transform-origin: left;
}
.link-arrow span { transition: transform .4s var(--ease-out); display: inline-block; }
.link-arrow:hover span { transform: translateX(3px); }

/* =============================================================
   4. Reveal on scroll
   ============================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }

/* =============================================================
   5. Nav
   ============================================================= */
.nav {
  position: fixed; top: 0; inset-inline: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color .4s var(--ease-out), border-color .4s var(--ease-out);
}
.nav.is-scrolled {
  background: rgba(10, 10, 9, .88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.nav-brand {
  font-family: var(--head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.nav-links {
  display: none;
  gap: 2.2rem;
}
.nav-links a {
  position: relative;
  font-size: .85rem;
  color: var(--ink-mute);
  padding-bottom: .3rem;
  transition: color .3s var(--ease-out);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: none; }
.nav-burger {
  font-family: var(--head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-block; }
  .nav-burger { display: none; }
}

.nav-mobile {
  position: fixed; inset: 0; z-index: 90;
  background: var(--bg);
  display: grid; place-items: center;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .6s var(--ease-soft);
}
.nav-mobile[data-open="true"] { clip-path: inset(0); }
.nav-mobile-links {
  display: flex; flex-direction: column; align-items: center; gap: 1.6rem;
}
.nav-mobile-links a {
  font-family: var(--head);
  font-size: 1.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .02em;
}
@media (min-width: 960px) { .nav-mobile { display: none; } }

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-top: 76px;
}
.hero-inner {
  display: flex; flex-direction: column;
  gap: 1.1rem;
  max-width: 46rem;
}
.hero-logo {
  margin-top: .6rem;
  align-self: center;
  width: max-content;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .8rem;
}
.hero-mark {
  width: clamp(100px, 11vw, 150px);
  height: auto;
}
.hero-wordmark {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero-rule {
  display: block;
  width: 72px;
  height: 1px;
  background: #619181;
}
.hero-kicker-sub {
  font-family: var(--head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #619181;
}
.hero-tagline {
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  font-weight: 400;
  color: var(--ink);
  max-width: 34ch;
  line-height: 1.4;
}
.hero-ctas {
  margin-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.6rem;
}
.hero-cta { color: var(--ink); }
.hero-proof { color: #619181; }
.hero-trust {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.1rem;
}
.hero-trust li {
  font-family: var(--head);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-left: 1rem;
  position: relative;
}
.hero-trust li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: #619181;
  border-radius: 50%;
}

.corner {
  position: absolute; width: 16px; height: 16px;
  pointer-events: none;
}
.corner::before, .corner::after {
  content: ""; position: absolute; background: var(--line-strong);
}
.corner::before { width: 100%; height: 1px; top: 0; }
.corner::after  { width: 1px; height: 100%; left: 0; }
.corner-tl { top: 28px; left: 1.5rem; }
.corner-br { bottom: 28px; right: 1.5rem; }
.corner-br::before { top: auto; bottom: 0; }
.corner-br::after { left: auto; right: 0; }
@media (min-width: 720px)  { .corner-tl { left: 2.5rem; } .corner-br { right: 2.5rem; } }
@media (min-width: 1280px) { .corner-tl { left: 3rem; } .corner-br { right: 3rem; } }

/* =============================================================
   7. Sections generic
   ============================================================= */
section { padding-block: var(--section-pad); }
.section-head { max-width: 40rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  text-transform: uppercase;
  margin-top: .6rem;
}
.section-note {
  color: var(--ink-mute);
  font-size: .92rem;
  margin-top: .8rem;
  max-width: 42ch;
}

/* --- Intro / Qué hago --- */
.intro { border-top: 1px solid var(--line); }
.intro-inner { display: flex; flex-direction: column; gap: 1rem; max-width: 42rem; }
.intro-text {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  color: var(--ink);
  line-height: 1.55;
}
.offer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  margin-top: 1rem;
}
@media (min-width: 720px) {
  .offer-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
}
.offer-list {
  margin-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.offer-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--ink);
  font-size: .98rem;
}
.offer-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  color: #619181;
}

/* --- Portfolio --- */
.portfolio { border-top: 1px solid var(--line); }
.project-featured {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
@media (min-width: 960px) {
  .project-featured { flex-direction: row; align-items: flex-start; gap: 3.5rem; }
  .project-preview { flex: 0 0 58%; }
  .project-info { flex: 1 1 auto; padding-top: .4rem; }
}
.project-preview {
  display: block;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 3;
}
.project-preview img {
  width: 100%;
  height: auto;
  transform: translateY(0);
  transition: transform 2.2s var(--ease-soft);
}
@media (hover: hover) and (pointer: fine) {
  .project-preview:hover img { transition-duration: 4.6s; transform: translateY(-62%); }
}
.project-info { display: flex; flex-direction: column; gap: .5rem; }
.project-name {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1.3rem;
}
.project-type {
  font-size: .88rem;
  color: #619181;
}
.project-desc {
  color: var(--ink-mute);
  font-size: .98rem;
  line-height: 1.6;
  margin-top: .6rem;
  max-width: 40ch;
}
.project-info .link-arrow { margin-top: 1rem; color: var(--ink); }

/* --- Process --- */
.process { border-top: 1px solid var(--line); }
.process-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
}
@media (min-width: 720px) { .process-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) {
  .process-list { grid-template-columns: repeat(5, 1fr); gap: 0; }
  .process-list li { border-left: 1px solid var(--line); padding: 0 1.4rem; }
  .process-list li:first-child { border-left: 0; padding-left: 0; }
}
.process-num {
  display: block;
  font-family: var(--head);
  font-weight: 300;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: transparent;
  -webkit-text-stroke: 1px #619181;
  margin-bottom: .7rem;
}
.process-list h3 {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.process-list p { color: var(--ink-mute); font-size: .9rem; }
.process-links {
  margin-top: 1rem;
  display: flex; flex-direction: column; gap: .5rem;
}
.process-links .link-arrow { color: var(--ink); font-size: .8rem; }

/* --- Why --- */
.why { border-top: 1px solid var(--line); }
.why-head {
  display: flex; flex-direction: column; gap: 1rem;
  max-width: 44rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.why-headline {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  line-height: 1.08;
  text-transform: uppercase;
  margin-top: .6rem;
}
.why-sub {
  color: var(--ink-mute);
  font-size: 1rem;
  line-height: 1.55;
  max-width: 42ch;
}
.why-list { display: flex; flex-direction: column; }
.why-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
}
.why-list li:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 720px) {
  .why-list li { grid-template-columns: 100px 1fr; gap: 2rem; align-items: baseline; }
}
@media (min-width: 1280px) {
  .why-list li { grid-template-columns: 140px 1fr; }
}
.why-num {
  display: block;
  font-family: var(--head);
  font-weight: 300;
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  color: transparent;
  -webkit-text-stroke: 1px #619181;
}
.why-body h3 {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .01em;
  text-transform: uppercase;
  margin-bottom: .6rem;
}
.why-body p {
  color: var(--ink-mute);
  font-size: .98rem;
  line-height: 1.65;
  max-width: 62ch;
}

/* --- Precio --- */
.pricing { border-top: 1px solid var(--line); text-align: center; }
.pricing-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 34rem;
  margin-inline: auto;
}
.pricing-headline {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  text-transform: uppercase;
  margin-top: .6rem;
}
.pricing-amount {
  margin-top: 1.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
}
.pricing-number {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(3rem, 7vw, 4.6rem);
  color: #619181;
  line-height: 1;
}
.pricing-note { color: var(--ink-mute); font-size: .92rem; max-width: 32ch; }
.pricing-includes {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.pricing-includes li { color: var(--ink); font-size: .96rem; }
.pricing .btn { margin-top: 2.2rem; background: #619181; }
.pricing .btn:hover { background-color: #70A091; }

/* --- VANTAGE CHECK --- */
/* Color de acento propio de esta sección — no toca --accent global (sage,
   usado en el resto del sitio). Todo lo que dentro de .vantage-ai use
   var(--accent) hereda automáticamente este verde por cascada de CSS. */
.vantage-ai {
  --accent: #619181;
  border-top: 1px solid var(--line);
}
.vantage-ai .btn:hover { background-color: #70A091; }

.ai-form {
  display: flex;
  gap: 1rem;
  max-width: 40rem;
  margin-bottom: 2rem;
}
.ai-input {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: .98rem;
  padding: .95rem 1.1rem;
  transition: border-color .3s var(--ease-out);
}
.ai-input::placeholder { color: var(--ink-mute); }
.ai-input:focus { outline: none; border-color: var(--accent); }
.ai-submit { flex: 0 0 auto; white-space: nowrap; }

.ai-status { max-width: 30rem; margin-bottom: 2rem; }
.ai-status-title {
  font-family: var(--head);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--ink-mute);
  margin-bottom: .9rem;
}
.ai-status-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: .92rem;
  color: var(--ink-mute);
  margin-bottom: .55rem;
  opacity: .5;
  transition: opacity .4s var(--ease-out), color .4s var(--ease-out);
}
.ai-status-list li::before {
  content: "—";
  position: absolute; left: 0;
  color: var(--ink-mute);
}
.ai-status-list li.is-done { opacity: 1; color: var(--ink); }
.ai-status-list li.is-done::before { content: "✓"; color: var(--accent); }

.ai-error {
  max-width: 30rem;
  border: 1px solid var(--line-strong);
  color: var(--ink-mute);
  font-size: .92rem;
  padding: 1rem 1.2rem;
  margin-bottom: 2rem;
}

.ai-result {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s var(--ease-soft), transform .7s var(--ease-soft);
}
.ai-result.is-visible { opacity: 1; transform: none; }
.ai-result-title {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}

.ai-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.ai-metric { background: var(--bg); padding: 1.4rem; min-width: 0; }
.ai-metric-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: .3rem .6rem; margin-bottom: .7rem;
}
.ai-metric-head h4 {
  font-family: var(--head);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  min-width: 0;
}
.ai-metric-score { font-size: .8rem; color: var(--accent); }
.ai-metric-score--na { color: var(--ink-mute); }
.ai-metric-bar {
  height: 3px; background: var(--line); margin-bottom: .8rem;
}
.ai-metric-bar span {
  display: block; height: 100%; width: 0;
  background: var(--accent);
  transition: width 1s var(--ease-soft);
}
.ai-metric-text { font-size: .86rem; color: var(--ink-mute); line-height: 1.55; }

.ai-opportunity {
  max-width: 44rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.ai-opportunity-text {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--ink);
  line-height: 1.55;
  margin-top: .5rem;
}

.ai-priorities { margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.ai-priorities-list { display: flex; flex-direction: column; }
.ai-priorities-list li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem;
  padding-block: 1.3rem;
  border-top: 1px solid var(--line);
}
.ai-priorities-list li:last-child { border-bottom: 1px solid var(--line); }
.ai-priority-num {
  font-family: var(--head);
  font-weight: 300;
  font-size: 1.6rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
}
.ai-priorities-list h4 {
  font-family: var(--head);
  font-size: .88rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: .35rem;
}
.ai-priorities-list p { font-size: .9rem; color: var(--ink-mute); line-height: 1.5; }

.ai-cta { text-align: center; }
.ai-cta p { color: var(--ink-mute); margin-bottom: 1rem; }

@media (max-width: 539px) {
  .ai-form { flex-direction: column; }
  .ai-submit { width: 100%; text-align: center; }
  .ai-metric { padding: 1rem .85rem; }
  .ai-metric-head { flex-direction: column; align-items: flex-start; gap: .3rem; }
  .ai-metric-head h4 { font-size: .74rem; }
  .ai-metric-score { font-size: .72rem; }
  .ai-metric-text { font-size: .82rem; }
}

/* --- About --- */
/* Mismo acento oficial que VANTAGE CHECK, solo en lo que ya usaba color de
   acento aquí (el kicker "SOBRE NOSOTROS") — el resto del texto no cambia. */
.about {
  --accent: #619181;
  border-top: 1px solid var(--line);
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 860px) {
  .about-inner { grid-template-columns: minmax(0, 1fr) minmax(0, 20rem); gap: 4rem; }
}
.about-copy { display: flex; flex-direction: column; gap: 1.6rem; max-width: 34rem; }
.about-lead {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line);
}

.about-visual {
  display: none;
  justify-self: center;
  flex-direction: column;
  align-items: center;
  gap: 1.3rem;
}
@media (min-width: 860px) {
  .about-visual { display: flex; width: 100%; max-width: 13rem; }
}
.about-mark {
  width: 100%;
  height: auto;
  opacity: 0;
  transform: scale(.9);
  transition: opacity 1.1s var(--ease-soft), transform 1.1s var(--ease-soft);
}
.about-mark-rule {
  display: block;
  width: 0;
  height: 1px;
  background: #619181;
  transition: width 1s var(--ease-soft) .5s;
}
.about-visual.is-revealed .about-mark { opacity: 1; transform: scale(1); }
.about-visual.is-revealed .about-mark-rule { width: 72px; }
.about-visual.is-revealed .about-mark { animation: about-mark-float 7s ease-in-out 2.2s infinite; }
@keyframes about-mark-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .about-mark, .about-mark-rule { transition: none; }
  .about-visual.is-revealed .about-mark { animation: none; opacity: 1; transform: none; }
  .about-visual.is-revealed .about-mark-rule { width: 72px; }
}
.about-text {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  line-height: 1.7;
  color: var(--ink);
}

/* --- Contact --- */
/* Mismo acento oficial que VANTAGE CHECK, solo para el botón final. */
.contact {
  --accent: #619181;
  border-top: 1px solid var(--line);
  text-align: center;
}
.contact .btn:hover { background-color: #70A091; }
.contact-inner {
  display: flex; flex-direction: column; align-items: center;
  gap: 1.1rem;
  max-width: 34rem; margin-inline: auto;
}
.contact h2 {
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  text-transform: uppercase;
}
.contact p { color: var(--ink-mute); font-size: 1.02rem; }
.contact-form {
  width: 100%;
  margin-top: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  text-align: left;
}
.contact-field { display: flex; flex-direction: column; gap: .5rem; }
.contact-field label {
  font-family: var(--head);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.contact-field input,
.contact-field textarea {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: .98rem;
  padding: .85rem 1rem;
  resize: vertical;
  transition: border-color .3s var(--ease-out);
}
.contact-field input:focus,
.contact-field textarea:focus { outline: none; border-color: #619181; }
.contact-form .btn { align-self: center; }
.btn {
  margin-top: .8rem;
  font-family: var(--head);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .04em;
  background: var(--accent);
  color: var(--bg);
  padding: .95rem 1.9rem;
  transition: transform .4s var(--ease-out), background-color .4s var(--ease-out);
}
.btn:hover { transform: translateY(-2px); background-color: #A5B996; }
.contact-links {
  margin-top: 1.4rem;
  display: flex; gap: 1.6rem; flex-wrap: wrap; justify-content: center;
}
.contact-links a {
  font-size: .85rem;
  color: var(--ink-mute);
  border-bottom: 1px solid var(--line);
  padding-bottom: .2rem;
  transition: color .3s var(--ease-out), border-color .3s var(--ease-out);
}
.contact-links a:hover { color: var(--ink); border-color: var(--ink); }

/* =============================================================
   8. Footer
   ============================================================= */
.footer { border-top: 1px solid var(--line); padding-block: 3rem; }
.footer-inner {
  display: flex; flex-direction: column; gap: .6rem;
}
.footer-name {
  font-family: var(--head);
  font-weight: 700;
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.footer-tagline { color: var(--ink-mute); font-size: .88rem; }
.footer-links {
  display: flex; gap: 1.4rem; margin-top: 1rem; flex-wrap: wrap;
}
.footer-links a {
  font-size: .82rem;
  color: var(--ink-mute);
  transition: color .3s var(--ease-out);
}
.footer-links a:hover { color: var(--ink); }
.footer-copy {
  color: var(--ink-mute);
  font-size: .76rem;
  margin-top: 1.6rem;
}

/* --- WhatsApp float --- */
.whatsapp-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 150;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .35);
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out);
}
.whatsapp-float svg { width: 28px; height: 28px; }
.whatsapp-float:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(0, 0, 0, .45); }
@media (max-width: 539px) {
  .whatsapp-float { right: 1rem; bottom: 1rem; width: 48px; height: 48px; }
  .whatsapp-float svg { width: 24px; height: 24px; }
}

/* =============================================================
   9. Responsive refinements
   ============================================================= */
@media (min-width: 540px) {
  .hero-mark { width: clamp(115px, 10vw, 150px); }
}