/* =============================================
   CMA INGENIEROS Y CONTRATISTAS GENERALES SAC
   Stylesheet
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Barlow:wght@300;400;500;600&display=swap');

/* ── Variables ── */
:root {
  --orange: #E07820;
  --orange-dark: #c96a10;
  --dark: #1a1a1a;
  --dark2: #222;
  --gray: #555;
  --light: #f5f5f5;
  --white: #fff;
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--dark); background: var(--white); }
img { display: block; max-width: 100%; }
a { text-decoration: none; }

/* ── NAVBAR ── */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(26, 26, 26, 0.96);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 70px;
  border-bottom: 2px solid var(--orange);
}

.nav-logo img {
  height: 48px;
 }

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  color: #ddd;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--orange); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: #fff;
  background: #fff;
  transition: 0.3s;
}

/* ── SLIDER ── */
.slider {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}

.slide.active { opacity: 1; }

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.15) 100%);
  display: flex;
  align-items: center;
  padding: 0 80px;
}

.slide-content { max-width: 620px; }

.slide-tag {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 6px 16px;
  margin-bottom: 20px;
}

.slide-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.slide-content p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  line-height: 1.65;
  margin-bottom: 30px;
}

.btn-primary {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 36px;
  transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
}

/* Slider controls */
.slider-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: 0.3s;
  border: none;
}

.dot.active {
  background: var(--orange);
  transform: scale(1.3);
}

.slider-arrows {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
}

.arrow {
  background: rgba(255,255,255,0.12);
  border: 2px solid rgba(255,255,255,0.3);
  color: #fff;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.3rem;
  transition: 0.2s;
}

.arrow:hover {
  background: var(--orange);
  border-color: var(--orange);
}

/* ── SECTION HEADERS ── */
.section-header {
  text-align: center;
  padding: 70px 20px 40px;
}

.section-label {
  display: inline-block;
  color: var(--orange);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--dark);
}

.section-header .divider {
  width: 60px;
  height: 3px;
  background: var(--orange);
  margin: 16px auto 0;
}

/* ── QUIÉNES SOMOS ── */
#quienes {
  background: var(--light);
  padding-bottom: 70px;
}

.quienes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.quienes-card {
  background: var(--white);
  padding: 40px 30px;
  border-top: 4px solid var(--orange);
  transition: transform 0.2s, box-shadow 0.2s;
}

.quienes-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.quienes-num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 10px;
}

.quienes-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 12px;
}

.quienes-card p {
  font-size: 0.93rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ── SERVICIOS ── */
#servicios { padding-bottom: 0; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 70px;
}

.service-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

.service-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card:hover img { transform: scale(1.08); }

.service-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 18px 16px;
  transition: background 0.3s;
}

.service-card:hover .service-overlay {
  background: linear-gradient(to top, rgba(224,120,32,0.75) 0%, rgba(0,0,0,0.15) 100%);
}

.service-overlay span {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: 1px;
  line-height: 1.2;
}

/* ── VISIÓN ── */
#vision {
  background: var(--dark);
  color: #fff;
  padding: 80px 20px;
  position: relative;
  overflow: hidden;
}

#vision::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 30px,
    rgba(255,255,255,0.02) 30px,
    rgba(255,255,255,0.02) 31px
  );
}

.vision-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
}

.vision-text .label {
  color: var(--orange);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 16px;
}

.vision-text h2 {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 20px;
}

.vision-text p {
  color: #aaa;
  line-height: 1.8;
  font-size: 0.95rem;
}

.vision-img { position: relative; }

.vision-img img {
  width: 100%;
  border-radius: 4px;
  
}

.vision-img .badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--orange);
  color: #fff;
  padding: 20px 24px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  text-transform: uppercase;
  line-height: 1.2;
}

/* ── HISTORIA ── */
#historia {
  background: var(--light);
  padding: 80px 20px;
}

.historia-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.historia-img img {
  width: 100%;
  border-radius: 4px;
}

.historia-text h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 20px;
}

.historia-text p {
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 16px;
}

.btn-secondary {
  display: inline-block;
  border: 2px solid var(--orange);
  color: var(--orange);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 32px;
  margin-top: 8px;
  transition: 0.2s;
}

.btn-secondary:hover {
  background: var(--orange);
  color: #fff;
}

/* ── CONTACTO ── */
#contacto {
  background: var(--dark2);
  color: #fff;
  padding: 80px 20px;
}

.contacto-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contacto-info h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 30px;
}

.contacto-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.contacto-icon {
  width: 46px;
  height: 46px;
  background: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contacto-item p,
.contacto-item a {
  color: #bbb;
  font-size: 0.95rem;
}

.contacto-item a:hover { color: var(--orange); }

.redes { margin-top: 30px; }

.redes p {
  color: #888;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.redes-links { display: flex; gap: 12px; }

.red-btn {
  width: 40px;
  height: 40px;
  border: 1px solid #444;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  transition: 0.2s;
}

.red-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.contacto-img img {
  width: 100%;
  border-radius: 4px;
}

/* ── FOOTER ── */
footer {
  background: #111;
  color: #FFFFFF;
  text-align: center;
  padding: 20px;
  font-size: 0.82rem;
  border-top: 2px solid var(--orange);
}

footer span { color: var(--orange); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .vision-inner,
  .historia-inner,
  .contacto-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .vision-img .badge { right: 0; bottom: 0; }
}

@media (max-width: 768px) {
  nav { padding: 0 20px; }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--dark);
    padding: 20px 30px;
    gap: 15px;
  }

  .nav-links.open { display: flex; }
  .hamburger { display: flex; }

  .slide-overlay { padding: 0 30px; }
  .slider-arrows { padding: 0 10px; }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
    padding: 0 10px 40px;
  }

  .service-overlay span { font-size: 0.7rem; letter-spacing: 0; }
}

@media (max-width: 480px) {
  .slide-content h1 { font-size: 2.2rem; }
  .slide-content p { font-size: 0.95rem; }
  .arrow { width: 38px; height: 38px; font-size: 1rem; }
}

/* ── SCROLL REVEAL ── */
.reveal-ready {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.revealed {
  opacity: 1;
  transform: translateY(0);
}