/* ============================================================
   SILAS SEVE7N HOLDINGS CORP — Premium Industrial Stylesheet
   Palette: Navy Blue · Red Accent · White · Charcoal · Gray
   ============================================================ */

/* ── Variables ── */
:root {
  --red: #bd0016;
  --red-dark: #8f0011;
  --red-glow: rgba(189, 0, 22, 0.22);
  --navy: #1e3a55;
  --navy-mid: #2c4e70;
  --navy-light: #406b96;
  --blue: #406b96;
  --black: #1a2535;
  --dark: #1e2d3d;
  --dark-card: #243447;
  --dark-surface: #2a3e54;
  --charcoal: #545454;
  --gray-light: #e8e8e8;
  --white: #ffffff;
  --off-white: #f5f7fa;
  --gray-50: #f0f4f8;
  --gray-100: #dde4ee;
  --gray-300: #a8b4c8;
  --gray-500: #5a6779;
  --gray-700: #2d3748;
  --text-light: #ffffff;
  --text-light-70: rgba(255, 255, 255, 0.70);
  --text-light-45: rgba(255, 255, 255, 0.45);
  --text-dark: #1a2535;
  --text-dark-60: #4a5568;
  --text-dark-40: #8a96a8;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: rgba(0, 0, 0, 0.08);
  --border-red: rgba(189, 0, 22, 0.30);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.10);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.22);
  --shadow-red: 0 8px 32px rgba(189, 0, 22, 0.30);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.55s cubic-bezier(0.4, 0, 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-sans);
  background: var(--dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

address {
  font-style: normal;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* ── Layout ── */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 100px 0;
}

.section-sm {
  padding: 64px 0;
}

.section-lg {
  padding: 140px 0;
}

/* ── Section Headers ── */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header-left {
  margin-bottom: 48px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--red);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 16px;
}

.section-title.on-dark {
  color: var(--text-light);
}

.section-title.on-light {
  color: var(--navy);
  text-shadow: none;
}

.section-title.on-navy {
  color: var(--text-light);
}

.section-desc {
  font-size: 1.0625rem;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.75;
}

.section-desc.on-dark {
  color: var(--text-light-70);
}

.section-desc.on-light {
  color: var(--navy-mid);
  opacity: 0.85;
}

.highlight-red {
  color: var(--red);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn-red {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  box-shadow: var(--shadow-red);
}

.btn-red:hover,
.btn-red:focus {
  background: var(--red-dark);
  border-color: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(189, 0, 22, 0.42);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.40);
}

.btn-outline-white:hover,
.btn-outline-white:focus {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

.btn-outline-navy:hover {
  background: var(--navy);
  color: #fff;
  transform: translateY(-2px);
}

.btn-navy {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.btn-navy:hover {
  background: var(--navy-mid);
  transform: translateY(-2px);
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 22px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: var(--navy);
  padding: 12px 0;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}

.navbar.solid {
  background: var(--navy);
  padding: 14px 0;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}

.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 32px;
}

.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 58px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
}

.logo-text-fallback {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.80);
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.btn-red {
  color: #fff !important;
  background: var(--red);
  border-radius: var(--radius-md);
  padding: 8px 20px;
}

.nav-link.btn-red:hover {
  background: var(--red-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  opacity: 0.18;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
      rgba(30, 58, 85, 0.96) 0%,
      rgba(30, 58, 85, 0.80) 50%,
      rgba(30, 58, 85, 0.45) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1320px;
  margin: 0 auto;
  padding: 120px 28px 80px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 60px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(189, 0, 22, 0.14);
  border: 1px solid rgba(189, 0, 22, 0.38);
  color: #fff;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease forwards;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  animation: pulse-dot 2s ease infinite;
  flex-shrink: 0;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.75rem);
  font-weight: 800;
  line-height: 1.06;
  color: #fff;
  margin-bottom: 22px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title .accent {
  color: var(--blue);
}

.hero-desc {
  font-size: clamp(1rem, 1.4vw, 1.175rem);
  color: rgba(255, 255, 255, 0.72);
  max-width: 520px;
  line-height: 1.78;
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease 0.35s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
  animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-stat-num {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--blue);
  line-height: 1;
  display: block;
}

.hero-stat-label {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.50);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 4px;
  display: block;
}

.hero-divider {
  width: 1px;
  height: 44px;
  background: rgba(255, 255, 255, 0.12);
  flex-shrink: 0;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  animation: fadeInRight 0.8s ease 0.4s both;
}

.hero-cert-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-cert-card h4 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.hero-cert-card p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.65;
}

.cert-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.cert-badge-pill.red {
  background: var(--red);
  color: #fff;
}

.cert-badge-pill.navy {
  background: var(--navy-mid);
  color: #fff;
}

.cert-badge-pill.blue {
  background: var(--blue);
  color: #fff;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: bounce 2.5s ease infinite;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.50), transparent);
}

/* ── Numbers Bar ── */
.numbers-section {
  background: var(--blue);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.numbers-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
}

.numbers-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--red-dark));
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  z-index: 1;
}

.number-item {
  text-align: center;
  padding: 20px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.number-item:last-child {
  border-right: none;
}

.number-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

.number-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 500;
}

/* ── Services Section ── */
.services-section {
  background: var(--dark);
  padding: 100px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: rgba(64, 107, 150, 0.45);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.service-card-img {
  position: relative;
  height: 210px;
  overflow: hidden;
  background: var(--navy-mid);
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-card-img img {
  transform: scale(1.06);
}

.service-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(36, 52, 71, 0.95) 100%);
}

.service-card-body {
  padding: 28px 30px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(64, 107, 150, 0.15);
  border: 1px solid rgba(64, 107, 150, 0.28);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  margin-bottom: 18px;
  transition: var(--transition);
}

.service-card-icon svg {
  width: 24px;
  height: 24px;
}

.service-card:hover .service-card-icon {
  background: rgba(64, 107, 150, 0.28);
}

.service-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.service-card-body p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.72;
  margin-bottom: 22px;
  flex: 1;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  transition: var(--transition);
  align-self: flex-start;
}

.service-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.service-link:hover {
  gap: 10px;
}

.service-link:hover svg {
  transform: translateX(3px);
}

/* ── About Section ── */
.about-section {
  background: var(--off-white);
  padding: 100px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-col {
  position: relative;
}

.about-image-wrapper {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/5;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-image-wrapper:hover img {
  transform: scale(1.04);
}

.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--navy);
  color: #fff;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.about-badge-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  display: block;
}

.about-badge-label {
  font-size: 0.72rem;
  opacity: 0.85;
  display: block;
  letter-spacing: 0.05em;
}

.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.18;
  margin-bottom: 20px;
  margin-top: 12px;
}

.about-content .lead {
  font-size: 1.0625rem;
  color: var(--navy-mid);
  opacity: 0.88;
  line-height: 1.82;
  margin-bottom: 32px;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 36px;
}

.about-highlight-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about-check {
  width: 24px;
  height: 24px;
  background: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  color: #fff;
}

.about-check svg {
  width: 12px;
  height: 12px;
}

.about-highlight-item strong {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy);
  display: block;
  margin-bottom: 2px;
}

.about-highlight-item p {
  font-size: 0.875rem;
  color: var(--navy-mid);
  opacity: 0.85;
  line-height: 1.5;
}

/* ── Certification Section (index) ── */
.cert-section {
  background: var(--white);
  padding: 80px 0;
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}

/* ── Certifications Grid (new 4-column) ── */
.certs-grid-section {
  background: var(--white);
  padding: 80px 0;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cert-box {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  border-top: 4px solid var(--navy);
  transition: var(--transition);
}

.cert-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--blue);
}

.cert-box-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 10px;
}

.cert-box-desc {
  font-size: 0.875rem;
  color: var(--text-dark-60);
  line-height: 1.65;
}

/* ── Cert Section Layout (2-col) ── */
.cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.cert-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
  margin-top: 12px;
}

.cert-text p {
  font-size: 1rem;
  color: var(--text-dark-60);
  line-height: 1.8;
  margin-bottom: 10px;
}

.cert-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.cert-pill {
  padding: 7px 18px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cert-pill.solid {
  background: var(--navy);
  color: #fff;
}

.cert-pill.outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
  padding: 5px 16px;
}

.cert-features {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cert-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 22px;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--navy);
  transition: var(--transition);
}

.cert-feature:hover {
  background: #e8f0f8;
}

.cert-feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(64, 107, 150, 0.10);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  flex-shrink: 0;
}

.cert-feature-icon svg {
  width: 20px;
  height: 20px;
}

.cert-feature h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.cert-feature p {
  font-size: 0.8375rem;
  color: var(--text-dark-60);
  line-height: 1.55;
}

/* ── Tags ── */
.tag-metal,
.tag-quim,
.tag-mix,
.tag-elec {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag-metal {
  background: #ebf4ff;
  color: #1a4a7a;
  border: 1px solid #b8d4f0;
}

.tag-quim {
  background: #fef0f0;
  color: var(--red);
  border: 1px solid rgba(189, 0, 22, 0.20);
}

.tag-mix {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.tag-elec {
  background: #e8f0f8;
  color: #2c4e70;
  border: 1px solid #b0c8e0;
}

/* ── CTA Section ── */
.cta-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
  background: var(--navy);
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(64, 107, 150, 0.22) 0%, transparent 70%);
}

.cta-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--red);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.68);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.78;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ── Footer ── */
.footer {
  background: var(--black);
  padding: 80px 0 0;
  border-top: 3px solid var(--red);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.2);
  margin-bottom: 16px;
}

.footer-brand > p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.46);
  line-height: 1.75;
  max-width: 280px;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.social-link {
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.45);
  transition: var(--transition);
}

.social-link svg {
  width: 16px;
  height: 16px;
}

.social-link:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.footer-col h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.46);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  align-items: flex-start;
}

.footer-contact-item svg {
  width: 15px;
  height: 15px;
  color: var(--blue);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-item a,
.footer-contact-item address {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.46);
  line-height: 1.6;
  transition: var(--transition);
}

.footer-contact-item a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.28);
}

.footer-cert {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  font-size: 0.72rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.50);
  letter-spacing: 0.09em;
}

.footer-cert .cert-dot {
  color: var(--blue);
}

/* ── Page Header (Interior Pages) ── */
.page-header {
  padding: 160px 0 90px;
  background: var(--navy);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.07;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 70%, rgba(64, 107, 150, 0.15) 0%, transparent 60%);
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--red);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: #fff;
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.68);
  max-width: 620px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  line-height: 1.75;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.46);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: rgba(64, 107, 150, 0.90);
}

.breadcrumb a:hover {
  color: #fff;
}

/* ── Nosotros: About Intro ── */
.about-intro {
  background: var(--white);
  padding: 100px 0;
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-intro-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.18;
  margin-bottom: 20px;
  margin-top: 12px;
}

.about-intro-content p {
  font-size: 1rem;
  color: var(--text-dark-60);
  line-height: 1.82;
  margin-bottom: 20px;
}

.info-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px 24px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}

.info-card.accent-gold {
  background: rgba(189, 0, 22, 0.05);
  border: 1px solid rgba(189, 0, 22, 0.18);
  border-left: 4px solid var(--red);
}

.info-card.accent-blue {
  background: rgba(64, 107, 150, 0.06);
  border: 1px solid rgba(64, 107, 150, 0.18);
  border-left: 4px solid var(--navy);
}

.info-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  flex-shrink: 0;
}

.accent-gold .info-card-icon {
  background: rgba(189, 0, 22, 0.08);
}

.accent-blue .info-card-icon {
  background: rgba(64, 107, 150, 0.10);
}

.info-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 0.9375rem;
}

.accent-gold .info-card h4 {
  color: var(--red);
}

.accent-blue .info-card h4 {
  color: var(--navy);
}

.info-card p {
  font-size: 0.875rem;
  color: var(--text-dark-60);
  line-height: 1.65;
}

/* ── Nosotros: Mission Vision (2-col colored cards) ── */
.mv-section {
  background: var(--off-white);
  padding: 100px 0;
}

.mv-grid-2,
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 48px;
}

.mv-card-vision {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.mv-card-vision::before {
  content: none;
}

.mv-card-mission {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  border-top: 4px solid var(--blue);
  position: relative;
  overflow: hidden;
}

.mv-card-mission::before {
  content: none;
}

.mv-card-vision h3 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.01em;
  text-align: center;
}

.mv-card-vision h3::before {
  content: '';
  display: block;
  width: 44px;
  height: 4px;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 2px;
}

.mv-card-mission h3 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.01em;
  text-align: center;
}

.mv-card-mission h3::before {
  content: '';
  display: block;
  width: 44px;
  height: 4px;
  background: var(--red);
  border-radius: 2px;
}

.mv-card-vision p {
  color: rgba(255,255,255,0.78);
  line-height: 1.82;
  font-size: 0.9375rem;
  text-align: center;
}

.mv-card-mission p {
  color: var(--navy-mid);
  opacity: 0.85;
  line-height: 1.82;
  font-size: 0.9375rem;
  text-align: center;
}

/* ── Dark section: Mission & Vision ── */
.mv-dark-section .mv-card-mission {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-top: 4px solid var(--red);
}

.mv-dark-section .mv-card-vision {
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.mv-dark-section .mv-card-mission h3 {
  color: #fff;
}

.mv-dark-section .mv-card-mission h3::before {
  background: var(--red);
}

.mv-dark-section .mv-card-mission p {
  color: rgba(255, 255, 255, 0.72);
  opacity: 1;
}

.mv-dark-section .mv-card-mission .mv-card-icon {
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
}

/* ── Dark section: Differentiators ── */
.diff-dark-section .diff-card {
  background: var(--dark-card);
  border-color: rgba(255, 255, 255, 0.07);
}

.diff-dark-section .diff-card:hover {
  border-color: rgba(64, 107, 150, 0.45);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.diff-dark-section .diff-card h4 {
  color: #fff;
}

.diff-dark-section .diff-card p {
  color: rgba(255, 255, 255, 0.65);
}

.diff-dark-section .diff-card-icon {
  background: rgba(255, 255, 255, 0.08);
  color: var(--blue);
}

/* ── Quality Policy ── */
.quality-section {
  background: var(--white);
  padding: 80px 0;
  border-top: 1px solid var(--gray-100);
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.quality-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}

.quality-item:hover {
  border-left-color: var(--red);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.quality-num {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--blue);
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.quality-item p {
  font-size: 0.9375rem;
  color: var(--navy-mid);
  opacity: 0.82;
  line-height: 1.65;
}

/* ── Nosotros: Differentiators ── */
.diff-section {
  background: var(--off-white);
  padding: 100px 0;
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.diff-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

.diff-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(64, 107, 150, 0.22);
}

.diff-icon {
  width: 62px;
  height: 62px;
  background: rgba(64, 107, 150, 0.10);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  margin: 0 auto 16px;
}

.diff-icon svg {
  width: 28px;
  height: 28px;
}

.diff-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  font-size: 1.0625rem;
}

.diff-card p {
  font-size: 0.875rem;
  color: var(--navy-mid);
  opacity: 0.80;
  line-height: 1.65;
}

/* ── Service Tabs ── */
.svc-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 28px 0;
  flex-wrap: wrap;
}

.svc-tab {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.70);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

.svc-tab svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.svc-tab:hover,
.svc-tab.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  box-shadow: 0 6px 24px rgba(189, 0, 22, 0.40);
  transform: translateY(-2px);
}

.svc-tab:hover svg,
.svc-tab.active svg {
  opacity: 1;
}

/* ── Services Detail Page ── */
.services-detail {
  background: var(--white);
  padding: 80px 0;
}

.service-section-block {
  margin-bottom: 90px;
  scroll-margin-top: 100px;
}

.service-section-block:last-child {
  margin-bottom: 0;
}

.service-section-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-100);
}

.svc-header-icon {
  width: 64px;
  height: 64px;
  background: rgba(64, 107, 150, 0.10);
  border: 2px solid rgba(64, 107, 150, 0.20);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  flex-shrink: 0;
}

.svc-header-icon svg {
  width: 30px;
  height: 30px;
}

.svc-header-text h2 {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.svc-header-text p {
  font-size: 0.9rem;
  color: var(--text-dark-60);
}

/* Feature cards grid (metalworking / electrical) */
.feature-cards-grid,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.feature-card {
  background: var(--off-white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: rgba(64, 107, 150, 0.30);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.feature-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(64, 107, 150, 0.10);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  margin-bottom: 16px;
}

.feature-card-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--navy-mid);
  opacity: 0.80;
  line-height: 1.65;
}

/* Hexagon numbered layout (chemical) */
.hex-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.hex-card {
  background: var(--off-white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition);
}

.hex-card:hover {
  border-color: rgba(64, 107, 150, 0.28);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.hex-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--blue);
  opacity: 0.55;
  line-height: 1;
  flex-shrink: 0;
  width: 52px;
}

.hex-card h4 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.hex-card p {
  font-size: 0.875rem;
  color: var(--navy-mid);
  opacity: 0.80;
  line-height: 1.65;
}

/* Section background alternation */
.service-section-block.alt-bg {
  background: var(--off-white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

/* ── Contact Page ── */
.contact-section {
  background: var(--off-white);
  padding: 100px 0;
}

.contact-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.contact-info-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  border-top: 4px solid var(--navy);
  transition: var(--transition);
}

.contact-info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-info-card-icon {
  width: 56px;
  height: 56px;
  background: rgba(64, 107, 150, 0.10);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  margin: 0 auto 16px;
}

.contact-info-card-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-card-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dark-40);
  margin-bottom: 8px;
}

.contact-info-card-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
}

.contact-info-card-value a {
  color: var(--navy);
  transition: var(--transition);
}

.contact-info-card-value a:hover {
  color: var(--red);
}

.contact-grid {
  display: flex;
  justify-content: center;
  gap: 60px;
  align-items: start;
}

.contact-info {
  max-width: 440px;
  width: 100%;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  margin-top: 12px;
}

.contact-info .lead {
  font-size: 1rem;
  color: var(--text-dark-60);
  line-height: 1.78;
  margin-bottom: 32px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: rgba(64, 107, 150, 0.28);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  background: rgba(64, 107, 150, 0.10);
  border: 1px solid rgba(64, 107, 150, 0.18);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  flex-shrink: 0;
}

.contact-card-icon svg {
  width: 20px;
  height: 20px;
}

.contact-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dark-40);
  margin-bottom: 3px;
}

.contact-card-value {
  font-size: 0.9375rem;
  color: var(--text-dark-60);
  line-height: 1.4;
  transition: var(--transition);
}

a.contact-card-value:hover {
  color: var(--navy);
}

.response-badge {
  display: flex;
  gap: 14px;
  align-items: center;
  background: #f0fdf4;
  border: 1px solid #a7f3d0;
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.response-badge-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.response-badge h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: #065f46;
  margin-bottom: 2px;
}

.response-badge p {
  font-size: 0.8125rem;
  color: #047857;
}

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-md);
  flex: 1;
  max-width: 640px;
}

.contact-form-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.contact-form-card > p {
  font-size: 0.875rem;
  color: var(--text-dark-60);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 7px;
}

.form-control {
  width: 100%;
  padding: 11px 15px;
  background: var(--off-white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  color: var(--text-dark);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: var(--transition);
  outline: none;
  appearance: none;
}

.form-control:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(64, 107, 150, 0.10);
}

.form-control::placeholder {
  color: var(--text-dark-40);
}

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

select.form-control {
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-submit {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 0.9375rem;
  margin-top: 6px;
}

.form-success {
  background: #f0fdf4;
  border: 1px solid #a7f3d0;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: #047857;
  font-size: 0.875rem;
  margin-top: 14px;
  display: none;
  text-align: center;
}

/* ── Advantages (dark section) ── */
.advantages-section {
  background: var(--navy);
  padding: 100px 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
}

.advantage-card:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(64, 107, 150, 0.38);
  transform: translateY(-4px);
}

.advantage-icon {
  width: 48px;
  height: 48px;
  background: rgba(64, 107, 150, 0.20);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  margin-bottom: 16px;
}

.advantage-icon svg {
  width: 22px;
  height: 22px;
}

.advantage-card h4 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.58);
  line-height: 1.72;
}

/* ── Animations ── */
@keyframes float-particle {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% { opacity: 0.35; }
  90% { opacity: 0.35; }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%       { transform: scale(1.4); opacity: 0.7; }
}

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

.animate-fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Language Toggle ── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1.5px solid rgba(255, 255, 255, 0.38);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.65);
}

.lang-toggle svg {
  width: 14px;
  height: 14px;
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-panel   { display: none; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .about-grid,
  .cert-grid,
  .contact-grid,
  .about-intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image-col,
  .about-intro-image {
    max-width: 480px;
    margin: 0 auto;
  }

  .mv-grid-2 { grid-template-columns: 1fr; }
  .quality-grid { grid-template-columns: 1fr 1fr; }
  .feature-cards-grid { grid-template-columns: 1fr 1fr; }
  .hex-grid { grid-template-columns: 1fr; }
  .contact-cards-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .section-sm { padding: 50px 0; }

  .nav-logo { order: 1; flex: 1; }

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    bottom: 0;
    width: 280px;
    background: var(--navy);
    flex-direction: column;
    justify-content: center;
    padding: 80px 32px;
    gap: 8px;
    margin-left: 0;
    transition: right var(--transition);
    border-left: 1px solid rgba(255, 255, 255, 0.09);
  }

  .nav-menu.open { right: 0; }

  .nav-link {
    font-size: 1.1rem;
    padding: 12px 16px;
  }

  .services-grid { grid-template-columns: 1fr; }

  .numbers-grid { grid-template-columns: repeat(2, 1fr); }

  .number-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .number-item:nth-child(2n) { border-right: none; }

  .number-item:last-child,
  .number-item:nth-last-child(2):nth-child(odd) { border-bottom: none; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer { padding: 44px 0 0; }
  .footer-grid { gap: 28px; margin-bottom: 36px; text-align: center; }
  .footer-brand > p { max-width: 100%; margin-left: auto; margin-right: auto; }
  .footer-social { justify-content: center; }
  .footer-col h4 { margin-bottom: 12px; }
  .footer-contact-item { justify-content: center; }

  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-card { padding: 28px 22px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .quality-grid { grid-template-columns: 1fr; }
  .feature-cards-grid { grid-template-columns: 1fr; }
  .contact-grid { flex-direction: column; }
  .contact-info { max-width: 100%; }
  .contact-form-card { max-width: 100%; }
  .service-section-block.alt-bg { padding: 32px 20px; }
  .mv-card-vision, .mv-card-mission { padding: 36px 28px; }
  .mv-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats   { justify-content: center; }
  .hero-text    { text-align: center; }
  .hero-badge   { margin: 0 auto; }
  .btn { justify-content: center; }
  .cta-actions  { flex-direction: column; align-items: center; }
  .diff-grid    { grid-template-columns: 1fr; }
  .numbers-grid { grid-template-columns: 1fr 1fr; }
  .certs-grid   { grid-template-columns: 1fr; }
  .cert-box     { padding: 28px 20px; }
  .contact-cards-row { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════
   SSHC — Additional Component Styles
   ═══════════════════════════════════════════════ */

/* ── Service Tabs (duplicate removed — see main definition above) ── */

/* ── Mission/Vision card icon ── */
.mv-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin: 0 auto 20px;
}

.mv-card-mission .mv-card-icon {
  background: rgba(64, 107, 150, 0.10);
  color: var(--navy);
}

.mv-card-icon svg { width: 22px; height: 22px; }

/* ── Quality policy check icon ── */
.quality-check {
  width: 28px;
  height: 28px;
  background: var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  color: #fff;
}

.quality-check svg { width: 13px; height: 13px; }

/* ── Differentiator card icon ── */
.diff-card-icon {
  width: 62px;
  height: 62px;
  background: rgba(64, 107, 150, 0.10);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  margin: 0 auto 16px;
}

.diff-card-icon svg { width: 28px; height: 28px; }

/* ── Feature grid (servicios page) ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

@media (max-width: 1024px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px)  { .feature-grid { grid-template-columns: 1fr; } }

/* ── Contact page columns ── */
.contact-info-col {
  max-width: 640px;
  width: 100%;
}

.contact-info-col h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  margin-top: 12px;
}

.contact-info-lead {
  font-size: 1rem;
  color: var(--text-dark-60);
  line-height: 1.78;
  margin-bottom: 32px;
}

.contact-detail-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.contact-detail-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: var(--transition);
}

.contact-detail-card:hover { border-color: rgba(64,107,150,0.28); box-shadow: var(--shadow-sm); }

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: rgba(64, 107, 150, 0.10);
  border: 1px solid rgba(64, 107, 150, 0.18);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  flex-shrink: 0;
}

.contact-detail-icon svg { width: 20px; height: 20px; }

.contact-detail-card strong {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dark-40);
  margin-bottom: 3px;
  display: block;
}

.contact-detail-card span,
.contact-detail-card a { font-size: 0.9375rem; color: var(--text-dark-60); }
.contact-detail-card a:hover { color: var(--navy); }

.contact-response-box {
  display: flex;
  gap: 14px;
  align-items: center;
  background: rgba(64, 107, 150, 0.06);
  border: 1px solid rgba(64, 107, 150, 0.18);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: 8px;
}

.contact-response-box strong { font-size: 0.875rem; font-weight: 700; color: var(--navy); margin-bottom: 2px; display: block; }
.contact-response-box p { font-size: 0.8125rem; color: var(--text-dark-60); line-height: 1.5; }

.contact-form-col {
  flex: 1;
  max-width: 640px;
}

.contact-form-box {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-md);
}

.contact-form-box h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.contact-form-box > p { font-size: 0.875rem; color: var(--text-dark-60); margin-bottom: 28px; }

@media (max-width: 768px) {
  .contact-form-box { padding: 28px 22px; }
  .contact-form-col, .contact-info-col { max-width: 100%; }
}