:root {
  --black: #0A0A0A;
  --black-soft: #141414;
  --black-card: #161616;
  --white: #FAFAFA;
  --white-soft: #EAEAEA;
  --amber: #FFB800;
  --amber-hover: #FFC933;
  --gray-line: rgba(250, 250, 250, 0.1);
  --gray-line-strong: rgba(250, 250, 250, 0.18);
  --gray-text: #999999;
  --gray-placeholder: #888888;

  /* Type scale — base 16px, ratio ~1.125 (major second) */
  --text-xs:   0.75rem;   /* 12px — micro labels */
  --text-sm:   0.875rem;  /* 14px — UI small / eyebrows */
  --text-base: 1rem;      /* 16px — body, nav, buttons, inputs */
  --text-lg:   1.125rem;  /* 18px — lead text / párrafos largos */
  --text-xl:   1.25rem;   /* 20px — sub-headings (cards) */

  /* Display sizes — responsive */
  --text-display-sm:   clamp(1.8rem, 3.5vw, 2.8rem);
  --text-display-md:   clamp(2rem, 4vw, 3.5rem);
  --text-display-lg:   clamp(2.8rem, 7vw, 5.5rem);
  --text-display-stat: clamp(3rem, 5vw, 4.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--black);
  color: var(--white);
  margin: 0;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--amber); color: var(--black); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: #2a2a2a; }
::-webkit-scrollbar-thumb:hover { background: var(--amber); }

h1, h2, h3, h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

em { font-style: normal; }

/* Display serif for big editorial titles */
.display-serif {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1;
}
.display-serif em {
  color: var(--amber);
}

/* ============ NAVBAR ============ */
.navbar-vlos {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-line);
  padding: 1rem 0;
  transition: all 0.3s ease;
  z-index: 1030;
}
.navbar-vlos.scrolled {
  padding: 0.5rem 0;
  background: rgba(10, 10, 10, 0.95);
}
.navbar-brand img { height: 64px; transition: height 0.3s ease; }
.navbar-vlos.scrolled .navbar-brand img { height: 52px; }

.nav-link-vlos {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--white-soft) !important;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: color 0.2s ease;
}
.nav-link-vlos::after {
  content: '';
  position: absolute;
  bottom: 0.2rem;
  left: 1rem;
  width: 0;
  height: 1px;
  background: var(--amber);
  transition: width 0.3s ease;
}
.nav-link-vlos:hover { color: var(--white) !important; }
.nav-link-vlos:hover::after { width: calc(100% - 2rem); }

.btn-amber {
  background: var(--amber);
  color: var(--black) !important;
  border: none;
  padding: 0.85rem 1.7rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: 6px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
}
.btn-amber:hover {
  background: var(--amber-hover);
  color: var(--black) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 184, 0, 0.25);
}

.btn-outline-vlos {
  background: transparent;
  color: var(--white) !important;
  border: 1px solid rgba(250, 250, 250, 0.3);
  padding: 0.85rem 1.7rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: var(--text-base);
  border-radius: 6px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.btn-outline-vlos:hover {
  border-color: var(--white);
  background: rgba(250, 250, 250, 0.05);
}

.navbar-toggler {
  border: 1px solid var(--gray-line);
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
}
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(250,250,250,0.85)' stroke-width='2' linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--black);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
}
/* Hero background — solo imagen */
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero_background.png') center/cover no-repeat, #0A0A0A;
  z-index: 0;
}
.hero-content { position: relative; z-index: 2; }

.hero-tagline {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: var(--text-display-lg);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
  max-width: 1100px;
}
.hero-title em {
  color: var(--amber);
}
.hero-title .accent-light {
  color: var(--white-soft);
  font-weight: 300;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--gray-text);
  max-width: 60ch;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-line);
  max-width: 700px;
}
@media (min-width: 992px) {
  .hero-trust {
    max-width: 900px;
    column-gap: 2rem;
    row-gap: 1.75rem;
  }
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--gray-text);
  font-size: var(--text-sm);
}
.trust-item i { color: var(--amber); font-size: 1.1rem; }

/* Floating drone badge in hero */
.hero-badge-corner {
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  width: 280px;
  height: 280px;
  border: 1px solid var(--gray-line-strong);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.8rem;
  animation: rotateSlow 30s linear infinite;
  opacity: 0.5;
  z-index: 1;
}
.hero-badge-corner::before {
  content: '';
  position: absolute;
  inset: 20px;
  border: 1px dashed rgba(255, 184, 0, 0.3);
  border-radius: 50%;
}
.hero-badge-corner-inner {
  animation: rotateReverseSlow 30s linear infinite;
  text-align: center;
}
.hero-badge-corner i {
  font-size: 3rem;
  color: var(--amber);
  display: block;
  margin-bottom: 0.5rem;
}
.hero-badge-corner span {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-base);
  color: var(--white-soft);
}
@keyframes rotateSlow {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}
@keyframes rotateReverseSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

/* ============ INTRODUCING SECTION ============ */
.introducing {
  background: var(--black);
  padding: 7rem 0;
  border-top: 1px solid var(--gray-line);
}
.introducing-img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  border-radius: 12px;
}
.introducing-img-wrap {
  position: relative;
  height: 100%;
  min-height: 400px;
  border-radius: 12px;
  overflow: hidden;
}
.introducing-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}

.section-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 1rem;
  display: inline-block;
}
.section-title-big {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: var(--text-display-md);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.section-title-big em {
  color: var(--amber);
}
.section-text {
  font-size: var(--text-lg);
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 1.2rem;
  max-width: 60ch;
}

/* ============ STATS BANNER ============ */
.stats-banner {
  background: var(--black-soft);
  padding: 4rem 0;
  border-top: 1px solid var(--gray-line);
  border-bottom: 1px solid var(--gray-line);
}
.stat-big {
  text-align: center;
  padding: 1rem;
}
.stat-big-number {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-display-stat);
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.stat-big-label {
  font-size: var(--text-sm);
  color: var(--gray-text);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============ SERVICES — ALTERNATING ============ */
.services { background: var(--black); }

.service-block {
  padding: 6rem 0;
  border-bottom: 1px solid var(--gray-line);
  position: relative;
}
.service-block:last-child { border-bottom: none; }

.service-image-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  min-height: 480px;
  height: 100%;
}
.service-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.service-image-placeholder {
  width: 100%;
  height: 100%;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.5rem;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255, 184, 0, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
  border: 1px solid var(--gray-line);
  position: relative;
}
.service-image-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(250,250,250,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250,250,250,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.service-image-placeholder i {
  font-size: 5rem;
  color: var(--amber);
  opacity: 0.5;
  position: relative;
  z-index: 1;
}
.service-image-placeholder span {
  font-family: 'Inter', sans-serif;
  color: var(--gray-text);
  font-size: var(--text-base);
  position: relative;
  z-index: 1;
}

/* Image overlay gradient */
.service-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(10, 10, 10, 0.5) 100%);
  pointer-events: none;
}

.service-number {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 1rem;
  display: inline-block;
}
.service-title-big {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: var(--text-display-sm);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}
.service-title-big em {
  color: var(--amber);
}
.service-description-big {
  font-size: var(--text-lg);
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 1.8rem;
  max-width: 60ch;
}
.service-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
}
.service-features li {
  font-size: var(--text-base);
  color: var(--white-soft);
  padding: 0.6rem 0;
  padding-left: 2rem;
  position: relative;
  border-bottom: 1px solid var(--gray-line);
}
.service-features li:last-child { border-bottom: none; }
.service-features li::before {
  content: '\F26B';
  font-family: 'bootstrap-icons';
  position: absolute;
  left: 0;
  top: 0.6rem;
  color: var(--amber);
  font-size: var(--text-base);
}

/* ============ WHY US ============ */
.why-us {
  background: var(--black-soft);
  border-top: 1px solid var(--gray-line);
}
.feature-card {
  padding: 2rem;
  height: 100%;
  border: 1px solid var(--gray-line);
  border-radius: 12px;
  background: var(--black);
  transition: all 0.3s ease;
}
.feature-card:hover {
  border-color: rgba(255, 184, 0, 0.4);
  transform: translateY(-4px);
}
.feature-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: rgba(255, 184, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber);
  font-size: 1.4rem;
  margin-bottom: 1.3rem;
}
.feature-card h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: var(--text-xl);
  margin-bottom: 0.6rem;
  color: var(--white);
}
.feature-card p {
  color: var(--gray-text);
  font-size: var(--text-base);
  margin: 0;
  line-height: 1.7;
}

/* ============ SECTORS ============ */
.sectors {
  background: var(--black);
  padding: 5rem 0;
  border-top: 1px solid var(--gray-line);
}
.sector-pill {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--gray-line);
  border-radius: 100px;
  margin: 0.3rem;
  font-size: var(--text-sm);
  color: var(--white-soft);
  transition: all 0.3s ease;
  font-weight: 400;
}
.sector-pill:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 184, 0, 0.05);
  cursor: default;
}

/* ============ BIG CTA ============ */
.big-cta {
  background: var(--black);
  padding: 8rem 0;
  position: relative;
  overflow: hidden;
  text-align: center;
  border-top: 1px solid var(--gray-line);
}
.big-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(255, 184, 0, 0.1) 0%, transparent 60%);
  pointer-events: none;
}
.big-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(250,250,250,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250,250,250,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  pointer-events: none;
}
.big-cta-content { position: relative; z-index: 1; }

/* ============ CONTACT ============ */
.contact {
  background: var(--black-soft);
  border-top: 1px solid var(--gray-line);
}
.contact-form .form-control,
.contact-form textarea {
  background: rgba(250, 250, 250, 0.04);
  border: 1px solid var(--gray-line);
  border-radius: 8px;
  color: var(--white);
  padding: 0.85rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: var(--text-base);
  transition: all 0.2s ease;
}
.contact-form .form-control:focus,
.contact-form textarea:focus {
  box-shadow: none;
  background: rgba(250, 250, 250, 0.06);
  border-color: var(--amber);
  color: var(--white);
}
.contact-form .form-control::placeholder,
.contact-form textarea::placeholder { color: var(--gray-placeholder); }
.contact-form label {
  font-size: var(--text-sm);
  color: var(--white-soft);
  margin-bottom: 0.4rem;
  display: block;
  font-weight: 500;
}
.contact-info-item {
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--gray-line);
}
.contact-info-item:last-child { border-bottom: 0; }
.contact-info-label {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 0.4rem;
}
.contact-info-value { font-size: var(--text-base); color: var(--white); }
.contact-info-value a {
  color: var(--white);
  text-decoration: none;
  transition: color 0.2s;
}
.contact-info-value a:hover { color: var(--amber); }

/* ============ FOOTER ============ */
.footer {
  background: #050505;
  padding: 3rem 0 1.5rem;
  border-top: 1px solid var(--gray-line);
}
.footer img { height: 80px; margin-bottom: 1rem; }
.footer-tagline {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-base);
  color: var(--gray-text);
  margin-bottom: 1.5rem;
}
.footer-heading {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-link {
  display: block;
  color: var(--gray-text);
  text-decoration: none;
  font-size: var(--text-sm);
  padding: 0.3rem 0;
  transition: color 0.2s;
}
.footer-link:hover { color: var(--amber); }
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--gray-line);
  border-radius: 8px;
  color: var(--white-soft);
  margin-right: 0.5rem;
  transition: all 0.3s ease;
  text-decoration: none;
}
.social-icon:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 184, 0, 0.05);
}
.footer-bottom {
  border-top: 1px solid var(--gray-line);
  padding-top: 1.5rem;
  margin-top: 3rem;
  font-size: var(--text-sm);
  color: var(--gray-text);
}

/* WhatsApp float */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.6rem;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
  z-index: 1020;
  transition: all 0.3s ease;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  color: white;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 991px) {
  .navbar-collapse {
    background: var(--black);
    margin-top: 1rem;
    padding: 1rem;
    border-top: 1px solid var(--gray-line);
    border-radius: 8px;
  }
  .hero { padding: 120px 0 50px; min-height: auto; }
  .hero-badge-corner { display: none; }
  .service-block { padding: 4rem 0; }
  .service-image-wrap { min-height: 320px; margin-bottom: 2.5rem; }
  .introducing { padding: 4rem 0; }
  .introducing-img-wrap { margin-top: 2.5rem; min-height: 300px; }
  .big-cta { padding: 5rem 0; }
}

@media (max-width: 575px) {
  .stats-banner { padding: 2.5rem 0; }

  /* CTAs apilados a 100% — touch targets máximos y anchos consistentes */
  .hero .btn-amber,
  .hero .btn-outline-vlos,
  .big-cta .btn-amber,
  .big-cta .btn-outline-vlos {
    width: 100%;
    justify-content: center;
  }
}

/* Reverse order helper for mobile */
@media (max-width: 991px) {
  .order-md-reverse { flex-direction: column-reverse; }
}

/* ============ NEW: Service real image overlay ============ */
.service-image-wrap .service-img-real {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
  display: block;
}

/* ============ NEW: Form alert ============ */
.form-alert {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-top: 1rem;
  font-size: var(--text-base);
  display: none;
  line-height: 1.5;
}
.form-alert.show { display: block; }
.form-alert.success {
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ADE80;
}
.form-alert.error {
  background: rgba(255, 100, 100, 0.08);
  border: 1px solid rgba(255, 100, 100, 0.3);
  color: #FF8080;
}
.form-alert i { margin-right: 0.4rem; }

button:disabled { opacity: 0.6; cursor: not-allowed; }