/* ============================================================
   PROTOCEM — Design System
   Constructora Profesional · Aguascalientes, México
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Lato:wght@300;400;700&display=swap');

/* ─── TOKENS ─────────────────────────────────────────────── */
:root {
  --clr-primary:     #C8A55A;   /* dorado construcción */
  --clr-primary-dk:  #A8832E;
  --clr-dark:        #0D1117;
  --clr-dark-2:      #161C26;
  --clr-mid:         #2A3340;
  --clr-text:        #E8EAF0;
  --clr-muted:       #8A96A8;
  --clr-white:       #FFFFFF;
  --clr-accent:      #E84040;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Lato', sans-serif;

  --radius:  6px;
  --radius-lg: 12px;
  --shadow:  0 4px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.5);

  --nav-h: 118px;
  --section-pad: 100px;
  --container: 1200px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ─── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--clr-dark);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ─── SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-dark-2); }
::-webkit-scrollbar-thumb { background: var(--clr-primary); border-radius: 3px; }

/* ─── UTILITY ────────────────────────────────────────────── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section    { padding: var(--section-pad) 0; }
.section--alt { background: var(--clr-dark-2); }

.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  border: 1px solid var(--clr-primary);
  padding: 4px 14px;
  border-radius: 2px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: .02em;
  color: var(--clr-white);
}

.section-title span { color: var(--clr-primary); }

.section-sub {
  color: var(--clr-muted);
  font-size: 1rem;
  max-width: 580px;
  margin-top: 16px;
}

.divider {
  width: 56px; height: 3px;
  background: var(--clr-primary);
  margin: 20px 0;
}

/* ─── BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-dark);
  box-shadow: 0 4px 20px rgba(200,165,90,.25);
}
.btn-primary:hover {
  background: var(--clr-primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200,165,90,.4);
}

.btn-outline {
  border: 2px solid var(--clr-primary);
  color: var(--clr-primary);
}
.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-dark);
  transform: translateY(-2px);
}

/* ─── NAVBAR ─────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: #0d1117;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: #0d1117;
  box-shadow: 0 2px 24px rgba(0,0,0,.4);
  backdrop-filter: blur(12px);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding-left: 0;
}

.navbar__brand {
  flex-shrink: 0;
}

.navbar__brand img {
  max-width: 410px;
  max-height: 110px;
  width: auto;
  height: auto;
  filter: drop-shadow(0 2px 16px rgba(200,165,90,.55));
  transition: filter var(--transition);
}

.navbar__brand:hover img {
  filter: drop-shadow(0 4px 24px rgba(200,165,90,.8));
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.navbar__links a {
  font-family: var(--font-display);
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--clr-text);
  position: relative;
  transition: color var(--transition);
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--clr-primary);
  transition: width var(--transition);
}

.navbar__links a:hover,
.navbar__links a.active {
  color: var(--clr-primary);
}

.navbar__links a.btn-primary.active,
.navbar__links a.btn-primary:hover {
  color: var(--clr-dark);
}

.navbar__links a:hover::after,
.navbar__links a.active::after { width: 100%; }

.navbar__cta { margin-left: 16px; }

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.navbar__toggle span {
  display: block;
  width: 26px; height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav */
@media (max-width: 900px) {
  :root { --nav-h: 70px; }

  .navbar__toggle { display: flex; }
  .navbar__cta.desktop-only { display: none; }

  .navbar__brand img {
    max-width: 190px;
    max-height: 50px;
    width: auto;
    height: auto;
  }

  .navbar__links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(13,17,23,.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 24px;
    transform: translateX(-100%);
    transition: transform var(--transition);
    border-top: 1px solid rgba(200,165,90,.2);
  }

  .navbar__links.open { transform: translateX(0); }
  .navbar__links a { padding: 14px 0; width: 100%; border-bottom: 1px solid rgba(255,255,255,.05); }
  .navbar__links .btn { margin-top: 16px; width: 100%; justify-content: center; }

  .lang-toggle-item { display: flex; gap: 12px; padding: 14px 0; }
}

/* ─── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://protocem.web.app/img/banner.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
    rgba(13,17,23,.92) 0%,
    rgba(13,17,23,.7)  55%,
    rgba(13,17,23,.3)  100%);
}

.hero:hover .hero__bg { transform: scale(1); }

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp .7s .2s forwards;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 40px; height: 2px;
  background: var(--clr-primary);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .02em;
  color: var(--clr-white);
  opacity: 0;
  animation: fadeUp .7s .4s forwards;
}
.hero__title span { color: var(--clr-primary); }

.hero__sub {
  font-size: 1.1rem;
  color: rgba(232,234,240,.8);
  max-width: 520px;
  margin: 24px 0 40px;
  opacity: 0;
  animation: fadeUp .7s .6s forwards;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp .7s .8s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: .6;
  animation: bounce 2s infinite;
}
.hero__scroll span {
  font-family: var(--font-display);
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.hero__scroll svg { width: 20px; }

/* ─── STATS BAR ──────────────────────────────────────────── */
.stats-bar {
  background: var(--clr-primary);
  padding: 32px 0;
}

.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(0,0,0,.15);
}

.stat-item {
  background: var(--clr-primary);
  text-align: center;
  padding: 24px 16px;
}

.stat-item__num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--clr-dark);
  line-height: 1;
}

.stat-item__label {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: rgba(13,17,23,.7);
  margin-top: 6px;
}

@media (max-width: 640px) {
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ─── ABOUT / NOSOTROS ───────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-imgs {
  position: relative;
  height: 520px;
}

.about-imgs img {
  position: absolute;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-imgs .img-main {
  width: 75%; height: 80%;
  top: 0; left: 0;
}

.about-imgs .img-sec {
  width: 55%; height: 55%;
  bottom: 0; right: 0;
  border: 4px solid var(--clr-dark);
}

.about-imgs .badge {
  position: absolute;
  top: 50%; left: 65%;
  transform: translate(-50%,-50%);
  background: var(--clr-primary);
  color: var(--clr-dark);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 14px 20px;
  border-radius: var(--radius);
  text-align: center;
  line-height: 1.3;
  z-index: 2;
  box-shadow: var(--shadow);
}

.values-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--clr-mid);
  border-radius: var(--radius);
  border-left: 3px solid var(--clr-primary);
  transition: transform var(--transition);
}
.value-item:hover { transform: translateX(4px); }
.value-item__icon { font-size: 1.4rem; margin-top: 2px; flex-shrink: 0; }
.value-item__text strong { display: block; font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--clr-white); }
.value-item__text span { font-size: .85rem; color: var(--clr-muted); }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-imgs { height: 380px; }
  .values-list { grid-template-columns: 1fr; }
}

/* ─── SERVICES ───────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.service-card {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid rgba(255,255,255,.05);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(200,165,90,.25);
}

.service-card__img {
  width: 100%; height: 220px;
  object-fit: cover;
  transition: transform .6s ease;
}
.service-card:hover .service-card__img { transform: scale(1.06); }

.service-card__body { padding: 28px; }

.service-card__num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: rgba(200,165,90,.2);
  line-height: 1;
  margin-bottom: 8px;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--clr-white);
  margin-bottom: 12px;
}

.service-card__text { font-size: .9rem; color: var(--clr-muted); line-height: 1.65; }

@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

/* ─── PROJECTS ───────────────────────────────────────────── */
.projects-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 40px 0;
}

.filter-btn {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 8px 20px;
  border-radius: 2px;
  border: 1px solid rgba(255,255,255,.15);
  color: var(--clr-muted);
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--clr-primary);
  color: var(--clr-dark);
  border-color: var(--clr-primary);
}

.projects-masonry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 240px;
  gap: 12px;
}

.proj-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
}

.proj-item.wide  { grid-column: span 2; }
.proj-item.tall  { grid-row:    span 2; }

.proj-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.proj-item:hover img { transform: scale(1.08); }

.proj-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,17,23,.9), transparent);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
.proj-item:hover .proj-item__overlay { opacity: 1; }

.proj-item__label {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--clr-white);
}

@media (max-width: 900px) {
  .projects-masonry { grid-template-columns: repeat(2, 1fr); }
  .proj-item.wide { grid-column: span 2; }
  .proj-item.tall { grid-row: auto; }
}
@media (max-width: 500px) {
  .projects-masonry { grid-template-columns: 1fr; }
  .proj-item.wide { grid-column: span 1; }
}

/* ─── CLIENTS ────────────────────────────────────────────── */
.clients-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-top: 56px;
}

.client-card {
  background: var(--clr-mid);
  border-radius: var(--radius);
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  border: 1px solid rgba(255,255,255,.06);
  transition: var(--transition);
}
.client-card:hover {
  border-color: var(--clr-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
}

.client-card span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--clr-muted);
  transition: color var(--transition);
}
.client-card:hover span { color: var(--clr-primary); }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.testimonial-card {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid rgba(255,255,255,.05);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 800;
  color: var(--clr-primary);
  opacity: .25;
  position: absolute;
  top: 16px; left: 24px;
  line-height: 1;
}

.testimonial-card__text {
  font-size: .95rem;
  color: var(--clr-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--clr-dark);
  flex-shrink: 0;
}

.testimonial-card__name { font-weight: 700; color: var(--clr-white); font-size: .95rem; }
.testimonial-card__role { font-size: .8rem; color: var(--clr-muted); }

@media (max-width: 900px) { .testimonials-grid { grid-template-columns: 1fr; } }

/* ─── BLOG ───────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.blog-card {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.05);
  transition: transform var(--transition), box-shadow var(--transition);
}
.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.blog-card__img {
  height: 200px; width: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.blog-card:hover .blog-card__img { transform: scale(1.06); }

.blog-card__body { padding: 24px; }

.blog-card__cat {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 10px;
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--clr-white);
  margin-bottom: 12px;
  transition: color var(--transition);
}
.blog-card:hover .blog-card__title { color: var(--clr-primary); }

.blog-card__excerpt { font-size: .88rem; color: var(--clr-muted); line-height: 1.65; }

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.07);
  font-size: .8rem;
  color: var(--clr-muted);
}

@media (max-width: 900px) { .blog-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .blog-grid { grid-template-columns: 1fr; } }

/* ─── CONTACT ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info__item {
  display: flex;
  gap: 18px;
  margin-bottom: 32px;
}

.contact-info__icon {
  width: 48px; height: 48px;
  background: rgba(200,165,90,.15);
  border: 1px solid rgba(200,165,90,.3);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info__title { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: .9rem; color: var(--clr-white); margin-bottom: 4px; }
.contact-info__val   { font-size: .9rem; color: var(--clr-muted); }

.contact-form {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  padding: 48px;
  border: 1px solid rgba(255,255,255,.06);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--clr-dark-2);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--clr-text);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(200,165,90,.12);
}

.form-group textarea { min-height: 140px; resize: vertical; }

.form-success {
  display: none;
  text-align: center;
  padding: 32px;
}
.form-success.show { display: block; }
.form-success__icon { font-size: 3rem; margin-bottom: 16px; }
.form-success__title { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--clr-primary); text-transform: uppercase; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row      { grid-template-columns: 1fr; }
  .contact-form  { padding: 28px; }
}

/* ─── FOOTER ─────────────────────────────────────────────── */
.footer {
  background: var(--clr-dark-2);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 72px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer__brand img { height: 52px; margin-bottom: 20px; }
.footer__brand p   { font-size: .9rem; color: var(--clr-muted); line-height: 1.7; max-width: 280px; }

.footer__col h4 {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 20px;
}

.footer__col ul li { margin-bottom: 12px; }
.footer__col ul li a {
  font-size: .9rem;
  color: var(--clr-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer__col ul li a:hover { color: var(--clr-primary); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: .82rem;
  color: var(--clr-muted);
  flex-wrap: wrap;
  gap: 12px;
}

.footer__social {
  display: flex;
  gap: 12px;
}
.footer__social a {
  width: 38px; height: 38px;
  background: var(--clr-mid);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--clr-muted);
  transition: var(--transition);
}
.footer__social a:hover {
  background: var(--clr-primary);
  color: var(--clr-dark);
}

@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* ─── PAGE HERO (inner pages) ────────────────────────────── */
.page-hero {
  height: 420px;
  display: flex;
  align-items: flex-end;
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.page-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,17,23,.92) 0%, rgba(13,17,23,.4) 100%);
}

.page-hero__content {
  position: relative;
  z-index: 2;
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--clr-white);
  line-height: 1;
}
.page-hero__title span { color: var(--clr-primary); }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-muted);
}
.breadcrumb a { color: var(--clr-primary); }

/* ─── CTA BAND ───────────────────────────────────────────── */
.cta-band {
  background: var(--clr-primary);
  padding: 72px 0;
}
.cta-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--clr-dark);
  max-width: 560px;
  line-height: 1.1;
}
.cta-band .btn-dark {
  background: var(--clr-dark);
  color: var(--clr-white);
  flex-shrink: 0;
}
.cta-band .btn-dark:hover {
  background: var(--clr-dark-2);
  transform: translateY(-2px);
}

/* ─── LIGHTBOX ───────────────────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 85vh; object-fit: contain; border-radius: var(--radius); }
.lightbox__close {
  position: absolute;
  top: 24px; right: 28px;
  color: var(--clr-white);
  font-size: 2rem;
  cursor: pointer;
  opacity: .7;
  transition: opacity var(--transition);
}
.lightbox__close:hover { opacity: 1; }

/* ─── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .6s ease, transform .6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* delay helpers */
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }
.delay-5 { transition-delay: .5s; }

/* ─── MISC ───────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-center .section-sub,
.text-center .divider { margin-left: auto; margin-right: auto; }

.mt-8  { margin-top: 8px;  }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }

/* ─── WHATSAPP QR BLOCK ──────────────────────────────────── */
.wa-block {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: rgba(37,211,102,.08);
  border: 1px solid rgba(37,211,102,.25);
  border-radius: var(--radius-lg);
  margin-top: 20px;
}

.wa-block__qr {
  flex-shrink: 0;
  background: #fff;
  padding: 8px;
  border-radius: var(--radius);
}

.wa-block__qr img,
.wa-block__qr canvas {
  display: block !important;
}

.wa-block__info { flex: 1; }

.wa-block__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #25D366;
  margin-bottom: 6px;
}

.wa-block__sub {
  font-size: .82rem;
  color: var(--clr-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #25D366;
  color: #fff;
  font-family: var(--font-display);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 10px 20px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.btn-whatsapp:hover {
  background: #1da851;
  transform: translateY(-2px);
}

/* ─── CURRICULUM PAGE ────────────────────────────────────── */
.curriculum-intro {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  padding: 40px;
  border-left: 4px solid var(--clr-primary);
  margin-bottom: 56px;
}

.curriculum-intro__header {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.curriculum-intro__logo img {
  height: 72px;
  width: auto;
}

.curriculum-intro__data { flex: 1; }
.curriculum-intro__name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: 4px;
}
.curriculum-intro__sub {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-primary);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
}
.curriculum-intro__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.curriculum-intro__meta span {
  font-size: .85rem;
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.curriculum-intro__services {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.07);
}
.curriculum-intro__services p {
  font-size: .85rem;
  color: var(--clr-muted);
  line-height: 1.7;
}

/* Project cards in curriculum */
.curriculum-projects { display: flex; flex-direction: column; gap: 32px; }

.curric-card {
  background: var(--clr-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.06);
  transition: border-color var(--transition);
}
.curric-card:hover { border-color: rgba(200,165,90,.3); }

.curric-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 28px 0;
  flex-wrap: wrap;
}

.curric-card__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(200,165,90,.15);
  line-height: 1;
  flex-shrink: 0;
}

.curric-card__titles { flex: 1; }
.curric-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--clr-white);
  line-height: 1.2;
  margin-bottom: 6px;
}
.curric-card__client {
  font-size: .82rem;
  color: var(--clr-primary);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.curric-card__monto {
  text-align: right;
  flex-shrink: 0;
}
.curric-card__monto-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--clr-primary);
}
.curric-card__monto-label {
  font-size: .72rem;
  color: var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.curric-card__body { padding: 20px 28px 28px; }
.curric-card__desc { font-size: .9rem; color: var(--clr-muted); line-height: 1.7; margin-bottom: 16px; }

.curric-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.curric-card__meta span {
  font-size: .78rem;
  color: var(--clr-muted);
  background: var(--clr-dark-2);
  padding: 4px 12px;
  border-radius: 2px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: .04em;
}

/* clients grid in curriculum */
.curric-clients {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}
.curric-clients__item {
  background: var(--clr-mid);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  color: var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  transition: var(--transition);
}
.curric-clients__item:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

/* form error */
.form-error {
  display: none;
  background: rgba(232,64,64,.12);
  border: 1px solid rgba(232,64,64,.3);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: .88rem;
  color: #ff8080;
  margin-top: 12px;
}

/* ─── GRID UTILITIES ─────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* ─── DOWNLOAD CARDS (curriculum) ───────────────────────── */
.download-card {
  background: var(--clr-mid);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.download-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 3px;
  background: var(--clr-primary);
  transition: width var(--transition);
}
.download-card:hover { border-color: var(--clr-primary); transform: translateY(-4px); }
.download-card:hover::after { width: 100%; }
.download-flag { font-size: 2.2rem; line-height: 1; }
.download-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-white);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.download-card p { font-size: .88rem; color: var(--clr-muted); line-height: 1.65; }
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.4rem;
  background: var(--clr-primary);
  color: var(--clr-dark);
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  margin-top: auto;
  transition: background var(--transition), transform var(--transition);
}
.download-btn:hover { background: var(--clr-primary-dk); transform: translateY(-1px); }

/* ─── CLIENT CARD WITH LOGO IMAGE ───────────────────────── */
.client-card { flex-direction: column; gap: 10px; text-align: center; padding: 24px 20px; }
.client-card .logo-img {
  max-height: 56px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  filter: grayscale(100%) brightness(.75);
  transition: filter var(--transition);
}
.client-card:hover .logo-img { filter: grayscale(0%) brightness(1); }
.client-card .logo-name {
  font-size: .72rem;
  color: var(--clr-muted);
  font-family: var(--font-display);
  letter-spacing: .08em;
  text-transform: uppercase;
  line-height: 1.4;
  max-width: 140px;
  transition: color var(--transition);
}
.client-card:hover .logo-name { color: var(--clr-primary); }

/* ─── INFO CARD (legal, sectors) ─────────────────────────── */
.info-card {
  background: var(--clr-mid);
  border-left: 4px solid var(--clr-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.4rem 2rem;
  font-size: .88rem;
  color: var(--clr-muted);
  line-height: 1.85;
  margin-top: 40px;
}
.info-card strong { color: var(--clr-white); }

/* ─── LANGUAGE TOGGLE ────────────────────────────────────── */
.lang-toggle-item {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-left: 8px;
  flex-shrink: 0;
}
.lang-btn {
  background: transparent;
  border: 1px solid rgba(200,165,90,.25);
  color: var(--clr-muted);
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 3px 7px;
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  line-height: 1.5;
}
.lang-btn:hover,
.lang-btn.active {
  background: var(--clr-primary);
  color: var(--clr-dark);
  border-color: var(--clr-primary);
}
@media (max-width: 900px) {
  .lang-toggle-item {
    margin-left: 0;
    padding: 12px clamp(1.5rem, 5vw, 4rem);
    border-bottom: 1px solid rgba(255,255,255,.05);
    gap: 6px;
  }
  .lang-btn { font-size: .8rem; padding: 5px 10px; }
}

/* ─── BLOG FEATURED POST (extraído de inline styles) ─────── */
.blog-featured {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--clr-mid);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.06);
}
.blog-featured__img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}
.blog-featured__body { padding: 40px; }
.blog-featured__title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--clr-white);
  margin: 16px 0;
  line-height: 1.2;
}
.blog-featured__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: .82rem;
  color: var(--clr-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE MÓVIL — sin alterar el diseño de escritorio
   ═══════════════════════════════════════════════════════════ */

/* ─── TABLET / MOBILE LARGE (≤ 900px) ──────────────────────
   Reglas adicionales al bloque ≤900px ya existente arriba   */
@media (max-width: 900px) {
  /* Limitar altura del menú desplegable para que no desborde */
  .navbar__links {
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }

  /* Blog featured: pasar a columna */
  .blog-featured {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .blog-featured__img { height: 260px; }
  .blog-featured__body { padding: 28px; }
  .blog-featured__title { font-size: 1.5rem; }
}

/* ─── MOBILE (≤ 768px) ─────────────────────────────────── */
@media (max-width: 768px) {
  :root { --section-pad: 64px; }

  .container { padding: 0 16px; }
  .section-sub { max-width: 100%; }

  /* ── Hero ── */
  .hero__content { max-width: 100%; }
  .hero__sub { font-size: 1rem; margin: 16px 0 28px; }
  .hero__actions { flex-direction: column; gap: 12px; }
  .hero__actions .btn { width: 100%; justify-content: center; }

  /* ── Page hero interior ── */
  .page-hero { height: 280px; padding-bottom: 32px; }

  /* ── About images: simplificar en móvil ── */
  .about-imgs { height: 260px; }
  .about-imgs .img-sec { display: none; }
  .about-imgs .img-main { width: 100%; height: 100%; }
  .about-imgs .badge {
    top: auto;
    bottom: 16px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  /* ── CTA band ── */
  .cta-band { padding: 52px 0; }
  .cta-band__inner { flex-direction: column; text-align: center; }
  .cta-band__inner .btn { width: 100%; justify-content: center; }

  /* ── Footer ── */
  .footer { padding: 48px 0 0; }

  /* ── Contact form ── */
  .contact-form { padding: 24px 20px; }

  /* ── WhatsApp block ── */
  .wa-block { flex-direction: column; text-align: center; }
  .wa-block__qr { align-self: center; }

  /* ── Curriculum intro ── */
  .curriculum-intro { padding: 24px 20px; }

  /* ── Blog featured ── */
  .blog-featured__body { padding: 20px; }
  .blog-featured__title { font-size: 1.3rem; }
}

/* ─── SMALL MOBILE (≤ 480px) ───────────────────────────── */
@media (max-width: 480px) {
  :root { --section-pad: 48px; }

  /* Logo ligeramente más pequeño en pantallas muy chicas */
  .navbar__brand img { height: 54px; }

  /* Stats bar */
  .stat-item__num { font-size: 2.2rem; }

  /* About images más compactas */
  .about-imgs { height: 220px; }

  /* CTA title */
  .cta-band__title { font-size: 1.6rem; }

  /* Curric card header */
  .curric-card__header { flex-direction: column; }
  .curric-card__monto { text-align: left; }

  /* Blog featured meta en columna */
  .blog-featured__meta { flex-direction: column; gap: 6px; align-items: flex-start; }

  /* Botones hero ajustados */
  .btn { font-size: .9rem; padding: 12px 24px; }
}