* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

:root {
  --black:  #0a0a0a;
  --gray1:  #1a1a1a;
  --gray2:  #444;
  --gray3:  #888;
  --gray4:  #bbb;
  --gray5:  #e8e8e8;
  --gray6:  #f4f4f4;
  --white:  #ffffff;
  --line:   rgba(10,10,10,.1);
  --serif:  'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --sans:   'DM Sans', 'Helvetica Neue', Arial, sans-serif;
}

body {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 15px;
  color: var(--black);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.on { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }
.reveal-d4 { transition-delay: .4s; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem;
  height: 60px;
  max-width: 100vw;
  -webkit-appearance: none;
}
.nav-logo {
  display: flex; align-items: center;
  text-decoration: none;
}
.nav-logo svg { height: 44px; width: auto; }

.nav-links {
  display: flex; align-items: center;
  gap: 2.5rem; list-style: none;
}
.nav-links a {
  font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gray3); text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover { color: var(--black); }

.nav-cta {
  font-family: var(--sans);
  font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--black); text-decoration: none;
  border: 1px solid var(--black);
  padding: .5rem 1.25rem;
  transition: background .2s, color .2s;
}
.nav-cta:hover { background: var(--black); color: var(--white); }

.nav-burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-burger span { display: block; width: 22px; height: 1px; background: var(--black); transition: all .3s; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  padding-top: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.hero-left {
  display: flex; flex-direction: column; justify-content: center;
  padding: 7rem 4rem 7rem 3rem;
  border-right: 1px solid var(--line);
}

.hero-eyebrow {
  font-family: var(--sans);
  font-size: .65rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gray3); margin-bottom: 2rem;
}

.hero-h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 300; line-height: 1.05;
  color: var(--black); margin-bottom: 2rem;
  letter-spacing: -.5px;
}
.hero-h1 em { font-style: italic; font-weight: 300; }

.hero-sub {
  font-family: var(--sans);
  font-size: .9rem; color: var(--gray2); font-weight: 300;
  line-height: 1.9; max-width: 380px; margin-bottom: 3.5rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-pri {
  font-family: var(--sans);
  font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  background: var(--black); color: var(--white);
  padding: .85rem 2rem; text-decoration: none;
  transition: opacity .2s; display: inline-block;
}
.btn-pri:hover { opacity: .8; }

.btn-sec {
  font-family: var(--sans);
  font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--black); padding: .85rem 2rem;
  border: 1px solid var(--line); text-decoration: none;
  transition: border-color .2s; display: inline-block;
}
.btn-sec:hover { border-color: var(--black); }

.hero-right {
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 3rem;
  background: var(--gray6);
  position: relative;
}

/* Cuadrícula sutil fondo */
.hero-right::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-stat-block {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.95);
}
.h-stat {
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: var(--white);
}
.h-stat-n {
  font-family: var(--serif);
  font-size: 2.4rem; font-weight: 300; color: var(--black);
  line-height: 1; margin-bottom: .2rem;
}
.h-stat-l {
  font-size: .62rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gray3); line-height: 1.5;
}

/* ── SECCIONES ── */
.sec {
  padding: 7rem 3rem;
}
.sec.alt { background: var(--gray6); }

.sec-header {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--line);
  align-items: end;
}

.sec-label {
  font-family: var(--sans);
  font-size: .62rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gray3);
  padding-top: .3rem;
}

.sec-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  font-weight: 300; line-height: 1.1;
  letter-spacing: -.3px;
}

.sec-title em { font-style: italic; }

/* ── SERVICIOS ── */
.srv-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  border-top: 1px solid var(--line);
}

.srv {
  padding: 2.5rem 2rem 2.5rem 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-right: 2rem;
}
.srv:nth-child(4n) { border-right: none; }
.srv:nth-last-child(-n+4) { border-bottom: none; }

.srv-num {
  font-family: var(--serif);
  font-size: 2rem; color: var(--gray5); font-weight: 300;
  line-height: 1; margin-bottom: 1.5rem;
}

.srv-icon {
  width: 40px; height: 40px; margin-bottom: 1rem;
  color: var(--gray3); display: flex; align-items: center; justify-content: center;
}

.srv-icon svg {
  width: 100%; height: 100%;
}

.srv-title {
  font-family: var(--serif);
  font-size: 1.2rem; font-weight: 400;
  color: var(--black); margin-bottom: .75rem; line-height: 1.3;
}

.srv-desc {
  font-size: .85rem; color: var(--gray2); line-height: 1.8; font-weight: 300;
}

/* ── SOBRE ── */
.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.sobre-left {
  position: sticky; top: 80px;
}

.sobre-monogram {
  width: 100%; aspect-ratio: 1;
  background: var(--gray6);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  margin-bottom: 1.5rem;
}

.sobre-monogram-text {
  font-family: var(--serif);
  font-size: 6rem; font-weight: 300;
  color: var(--black); letter-spacing: -.5rem;
  line-height: 1;
}

.sobre-tag {
  font-size: .65rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gray3);
}

.sobre-text {
  font-size: .95rem; color: var(--gray2); line-height: 2;
  margin-bottom: 1.5rem; font-weight: 300;
}
.sobre-text:last-of-type { margin-bottom: 2rem; }

.cred-list { border-top: 1px solid var(--line); margin-top: 2.5rem; }
.cred-row {
  display: flex; align-items: baseline; gap: .75rem;
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
  font-size: .82rem; color: var(--gray2); font-weight: 300;
}
.cred-row::before {
  content: '—'; color: var(--gray4); font-size: .7rem; flex-shrink: 0;
}

/* ── EQUIPO GRID ── */
.equipo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.equipo-card {
  padding: 2.5rem 2rem;
  background: var(--white);
  border-top: 3px solid var(--black);
  position: relative;
}

.equipo-role {
  font-family: var(--sans);
  font-size: .65rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--gray3); 
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.equipo-name {
  font-family: var(--serif);
  font-size: 1.6rem; font-weight: 400;
  color: var(--black);
  margin-bottom: 0.5rem;
  line-height: 1.2;
  letter-spacing: -.5px;
}

.equipo-position {
  font-family: var(--sans);
  font-size: .8rem; 
  color: var(--gray2);
  font-weight: 400;
  margin-bottom: 2rem;
  font-style: italic;
}

.equipo-creds {
  font-size: 0.78rem;
  color: var(--gray2);
  font-weight: 300;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.equipo-creds p {
  margin: 0.5rem 0;
  line-height: 1.6;
}

/* ── PROCESO ── */
.proceso-list { }
.paso {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.paso:first-child { border-top: 1px solid var(--line); }

.paso-n {
  font-family: var(--serif);
  font-size: 3rem; color: var(--gray5); font-weight: 300;
  line-height: 1;
}

.paso-content {}
.paso-title {
  font-family: var(--serif);
  font-size: 1.3rem; font-weight: 400;
  margin-bottom: .5rem;
}
.paso-desc {
  font-size: .88rem; color: var(--gray2); line-height: 1.9; font-weight: 300;
}

/* ── CLIENTES ── */
.cli-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.cli {
  padding: 2.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.cli-title {
  font-family: var(--serif);
  font-size: 1.1rem; font-weight: 400;
  margin-bottom: .75rem; line-height: 1.3;
}
.cli-desc {
  font-size: .86rem; color: var(--gray2); line-height: 1.9; font-weight: 300;
  margin-bottom: 1.25rem;
}
.cli-tag {
  font-size: .65rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gray3);
}

/* ── PROYECTOS ── */
.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  gap: 0;
}
.proyecto {
  display: flex; flex-direction: column;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.proyecto-imagen {
  width: 100%; height: 250px;
  background: var(--gray6);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray4); font-size: .85rem;
  overflow: hidden;
  flex-shrink: 0;
}
.proyecto-imagen img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.proyecto-caption {
  font-size: .68rem;
  color: var(--gray3);
  font-style: italic;
  font-weight: 300;
  padding: .75rem 2.5rem;
  background: var(--gray6);
  border-bottom: 1px solid var(--line);
  line-height: 1.5;
  letter-spacing: .02em;
}
.proyecto-content {
  padding: 2.5rem;
  display: flex; flex-direction: column;
  flex-grow: 1;
}
.proyecto-year {
  font-family: var(--sans);
  font-size: .62rem; letter-spacing: .15em; text-transform: uppercase;
  color: var(--gray3); margin-bottom: 1rem; font-weight: 300;
}
.proyecto-title {
  font-family: var(--serif);
  font-size: 1.1rem; font-weight: 400;
  margin-bottom: .75rem; line-height: 1.3;
  color: var(--black);
}
.proyecto-desc {
  font-size: .86rem; color: var(--gray2); line-height: 1.9; font-weight: 300;
  margin-bottom: 1.5rem; flex-grow: 1;
}
.proyecto-meta {
  font-size: .65rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gray3); font-style: italic;
}

/* ── FAQ ── */
.faq-list {}
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 2rem 0;
}
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q {
  font-family: var(--serif);
  font-size: 1.1rem; font-weight: 400;
  margin-bottom: .75rem; cursor: pointer;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
}
.faq-q::after {
  content: '+'; font-family: var(--sans); font-weight: 300;
  font-size: 1.2rem; color: var(--gray3); flex-shrink: 0;
  transition: transform .3s;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  font-size: .88rem; color: var(--gray2); line-height: 1.9; font-weight: 300;
  display: none;
}
.faq-item.open .faq-a { display: block; }

.faq-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 4rem;
}

/* ── CONTACTO ── */
#contacto {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
}

.contacto-left {
  padding: 7rem 4rem 7rem 3rem;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: center;
}

.contacto-right {
  padding: 7rem 3rem;
}

.c-table { margin-top: 3rem; }
.c-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  gap: 1rem;
  align-items: baseline;
}
.c-row:first-child { border-top: 1px solid var(--line); }
.c-key {
  font-size: .65rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gray3);
}
.c-val {
  font-size: .88rem; color: var(--gray2); line-height: 1.7; font-weight: 300;
}
.c-val a { color: inherit; text-decoration: none; border-bottom: 1px solid var(--gray5); }
.c-val a:hover { border-color: var(--gray3); }

.f-title {
  font-family: var(--serif);
  font-size: 1.6rem; font-weight: 300;
  margin-bottom: 2.5rem;
}

.f-group { margin-bottom: 1.25rem; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.f-label {
  font-size: .62rem; letter-spacing: .15em; text-transform: uppercase;
  color: var(--gray3); display: block; margin-bottom: .5rem;
}
.f-input, .f-select, .f-textarea {
  width: 100%;
  font-family: var(--sans); font-size: .9rem; font-weight: 300;
  color: var(--black); background: transparent;
  border: none; border-bottom: 1px solid var(--gray5);
  padding: .6rem 0; outline: none;
  transition: border-color .2s;
  -webkit-appearance: none;
}
.f-input:focus, .f-select:focus, .f-textarea:focus {
  border-color: var(--black);
}
.f-textarea { resize: vertical; min-height: 100px; }
.f-select { cursor: pointer; }

.btn-send {
  font-family: var(--sans);
  font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  background: var(--black); color: var(--white);
  border: none; padding: 1rem 2.5rem;
  cursor: pointer; transition: opacity .2s;
  margin-top: .5rem;
}
.btn-send:hover { opacity: .8; }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--line);
  padding: 2rem 3rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.foot-left {
  display: flex; align-items: center;
}
.foot-left svg { height: 32px; width: auto; }

.foot-center {
  font-size: .65rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gray3); text-align: center;
}

.foot-right {
  font-size: .65rem; color: var(--gray4);
  letter-spacing: .05em;
}

/* ── WHATSAPP ── */
.wa {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 300;
  width: 48px; height: 48px;
  background: #25D366; color: var(--white);
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
  transition: opacity .2s;
}
.wa:hover { opacity: .8; }
.wa svg { width: 20px; height: 20px; fill: var(--white); }

/* ── MOBILE NAV ── */
.mobile-menu {
  display: none;
  position: fixed; inset: 0; top: 60px;
  background: var(--white);
  z-index: 199;
  flex-direction: column;
  padding: 3rem;
  gap: 2rem;
  border-top: 1px solid var(--line);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--serif);
  font-size: 2rem; font-weight: 300;
  color: var(--black); text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }

  #hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-left { padding: 4rem 1.5rem; border-right: none; border-bottom: 1px solid var(--line); }
  .hero-right { min-height: 50vw; }
  .hero-h1 { font-size: 2.8rem; }

  .sec { padding: 4rem 1.5rem; }
  .sec-header { grid-template-columns: 1fr; gap: 1rem; margin-bottom: 3rem; }

  .srv-grid { grid-template-columns: 1fr; }
  .srv { border-right: none; border-bottom: 1px solid var(--line); padding-right: 0; }
  .srv:last-child { border-bottom: none; }

  .sobre-grid { grid-template-columns: 1fr; }
  .equipo-grid { grid-template-columns: 1fr; border-left: none; }
  .equipo-card { border-right: none; border-bottom: 1px solid var(--line); }
  .equipo-card:last-child { border-bottom: none; }
  .sobre-left { position: static; }
  .sobre-monogram { display: none; }

  .cli-grid { grid-template-columns: 1fr; border-left: none; }
  .proyectos-grid { grid-template-columns: 1fr; border-left: none; }
  .faq-cols { grid-template-columns: 1fr; gap: 0; }

  #contacto { grid-template-columns: 1fr; }
  .contacto-left { padding: 4rem 1.5rem; border-right: none; border-bottom: 1px solid var(--line); }
  .contacto-right { padding: 4rem 1.5rem; }
  .f-row { grid-template-columns: 1fr; }

  footer { flex-direction: column; align-items: flex-start; padding: 2rem 1.5rem; }
  .foot-center { text-align: left; }

  .paso { grid-template-columns: 50px 1fr; }
}