:root {
  --basalt:   #1A1412;
  --basalt2:  #231C1A;
  --granate:  #6B1020;
  --granate2: #993045;
  --granate3: #C4415A;
  --stone:    #F5F2F0;
  --stone2:   #E8E3E0;
  --ash:      #9A9290;
  --white:    #FFFFFF;
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'IBM Plex Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--basalt);
  color: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── GRID BLUEPRINT BACKGROUND ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(107,16,32,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107,16,32,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  background: rgba(26,20,18,0.92);
  border-bottom: 1px solid rgba(107,16,32,0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.3s;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-decoration: none;
}
.nav-logo .gr { color: var(--granate2); }
.nav-logo .etna { color: var(--white); }

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--ash);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--granate3); }

.nav-cta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--granate);
  border: none;
  padding: 0.55rem 1.25rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--granate2); }

/* ── HAMBURGER (mobile) ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ash);
  transition: all 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── MOBILE NAV MENU ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 65px; left: 0; right: 0;
  background: rgba(26,20,18,0.98);
  border-bottom: 1px solid rgba(107,16,32,0.4);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99;
  padding: 1.5rem;
  flex-direction: column;
  gap: 0;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--ash);
  text-decoration: none;
  text-transform: uppercase;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(107,16,32,0.15);
  transition: color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; color: var(--granate3); }
.mobile-menu a:hover { color: var(--white); }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 3rem 5rem;
  overflow: hidden;
  z-index: 1;
}

.hero-volcano {
  position: absolute;
  right: -40px;
  bottom: 0;
  width: 55%;
  max-width: 700px;
  opacity: 0.07;
  pointer-events: none;
}

.hero::before {
  content: '';
  position: absolute;
  left: 3rem;
  top: 8rem;
  bottom: 5rem;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--granate), transparent);
}

.hero-content {
  position: relative;
  max-width: 680px;
  padding-left: 2rem;
  animation: fadeUp 0.9s ease both;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--granate2);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--granate);
}

h1 {
  font-family: var(--mono);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}
h1 .gr   { color: var(--granate2); }
h1 .etna { color: var(--white); }
h1 .sys  {
  color: var(--ash);
  font-weight: 300;
  font-size: 0.55em;
  display: block;
  letter-spacing: 0.08em;
  margin-top: 0.3em;
}

.hero-desc {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

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

.btn-primary {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--granate);
  border: 1px solid var(--granate);
  padding: 0.85rem 2rem;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-block;
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--granate2);
  border-color: var(--granate2);
}

.btn-secondary {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ash);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.85rem 2rem;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-block;
}
.btn-secondary:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.hero-coords {
  position: absolute;
  bottom: 2rem;
  right: 3rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: rgba(255,255,255,0.12);
  letter-spacing: 0.08em;
  text-align: right;
  line-height: 1.8;
}

/* ── SECCIÓN GENÉRICA ── */
section {
  position: relative;
  z-index: 1;
  padding: 6rem 3rem;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--granate2);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--granate);
}

h2 {
  font-family: var(--mono);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-intro {
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 3.5rem;
}

/* ── SERVICIOS ── */
#servicios {
  background: var(--basalt2);
  border-top: 1px solid rgba(107,16,32,0.2);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: rgba(107,16,32,0.2);
  border: 1px solid rgba(107,16,32,0.2);
}

.service-card {
  background: var(--basalt2);
  padding: 2.5rem 2rem;
  transition: background 0.25s;
  cursor: default;
}
.service-card:hover { background: #201918; }

.service-number {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--granate);
  margin-bottom: 1.25rem;
}

.service-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1.25rem;
}

.service-title {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.service-desc {
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

/* ── POR QUÉ NOSOTROS ── */
#nosotros { border-top: 1px solid rgba(107,16,32,0.2); }

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.why-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.why-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.why-dot {
  width: 8px;
  height: 8px;
  background: var(--granate);
  flex-shrink: 0;
  margin-top: 0.55rem;
}

.why-item-title {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--white);
}

.why-item-desc {
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  line-height: 1.65;
}

.origin-panel {
  background: var(--basalt2);
  border: 1px solid rgba(107,16,32,0.3);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.origin-panel::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--granate);
}

.origin-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--granate2);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.origin-name {
  font-family: var(--mono);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
.origin-name .gr   { color: var(--granate2); }
.origin-name .etna { color: var(--white); }

.origin-text {
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.origin-coords {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: rgba(255,255,255,0.18);
  letter-spacing: 0.08em;
  line-height: 1.9;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1rem;
}

/* ── PROCESO ── */
#proceso {
  background: var(--basalt2);
  border-top: 1px solid rgba(107,16,32,0.2);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  position: relative;
}

.process-step {
  padding: 2rem 1.75rem;
  border-right: 1px solid rgba(107,16,32,0.2);
  position: relative;
}
.process-step:last-child { border-right: none; }

.step-num {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(107,16,32,0.25);
  line-height: 1;
  margin-bottom: 1rem;
}

.step-title {
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.82rem;
  font-weight: 300;
  color: rgba(255,255,255,0.38);
  line-height: 1.65;
}

/* ── CONTACTO ── */
#contacto {
  border-top: 1px solid rgba(107,16,32,0.2);
  background: var(--basalt);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

input, textarea, select {
  width: 100%;
  background: var(--basalt2);
  border: 1px solid rgba(107,16,32,0.3);
  color: var(--white);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 300;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}
input::placeholder, textarea::placeholder { color: rgba(255,255,255,0.22); }
input:focus, textarea:focus, select:focus { border-color: var(--granate); }
textarea { resize: vertical; min-height: 130px; }
select option { background: var(--basalt2); }

.contact-info { padding-top: 0.5rem; }

.contact-detail {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.75rem;
}

.contact-detail-icon {
  width: 32px;
  height: 32px;
  background: rgba(107,16,32,0.2);
  border: 1px solid rgba(107,16,32,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--granate2);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.contact-detail-value {
  font-size: 0.9rem;
  font-weight: 300;
  color: rgba(255,255,255,0.6);
}
.contact-detail-value a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color 0.2s;
}
.contact-detail-value a:hover { color: var(--granate3); }

/* ── WHATSAPP FLOTANTE ── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 200;
  width: 52px;
  height: 52px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(37,211,102,0.5);
}
.whatsapp-float svg { width: 28px; height: 28px; }

/* ── FOOTER ── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(107,16,32,0.3);
  padding: 2rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-decoration: none;
}
.footer-logo .gr   { color: var(--granate2); }
.footer-logo .etna { color: var(--white); }

.footer-copy {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.18);
}

.footer-coords {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: rgba(255,255,255,0.12);
  letter-spacing: 0.06em;
  text-align: right;
  line-height: 1.8;
}

/* ── ANIMACIONES ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  section { padding: 4rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero::before { left: 1.5rem; }
  .hero-content { padding-left: 1.25rem; }
  .why-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-wrap { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 1rem; text-align: center; padding: 1.75rem 1.5rem; }
  .hero-coords { display: none; }
  .process-step { border-right: none; border-bottom: 1px solid rgba(107,16,32,0.2); }
  .process-step:last-child { border-bottom: none; }
}
@media (max-width: 480px) {
  h1 { font-size: 2.4rem; }
}