:root {
  --em-bg: #000000;
  --em-bg-elevated: #0a0a0a;
  --em-bg-soft: #141414;
  --em-steel: linear-gradient(135deg, #0a0a0a 0%, #000000 40%, #1a0505 100%);
  --em-chrome: #f2f2f2;
  --em-copper: #e30613;
  --em-text: #ffffff;
  --em-muted: #b3b3b3;
  --em-accent: #e30613;
  --em-accent-hover: #ff1a1a;
  --em-border: rgba(227, 6, 19, 0.22);
  --em-border-subtle: rgba(255, 255, 255, 0.1);
  --em-font-display: "Oswald", system-ui, sans-serif;
  --em-font-body: "Source Sans 3", system-ui, sans-serif;
  --em-header-h: 4.5rem;
  --em-radius: 2px;
  --em-shadow: 0 24px 60px rgba(0, 0, 0, 0.65);
  --em-max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.em-site {
  margin: 0;
  font-family: var(--em-font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--em-text);
  background: var(--em-bg);
  background-image:
    radial-gradient(ellipse 70% 45% at 0% 0%, rgba(227, 6, 19, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 35% at 100% 10%, rgba(227, 6, 19, 0.1), transparent 50%);
  min-height: 100vh;
}

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

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--em-accent);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 0;
}

/* Header */
.em-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--em-header-h);
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--em-border);
  transition: box-shadow 0.3s ease;
}

.em-header.is-scrolled {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.em-header__inner {
  max-width: calc(var(--em-max) + 4rem);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.em-logo img {
  height: 42px;
  width: auto;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.em-nav {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
}

.em-nav a {
  font-family: var(--em-font-display);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--em-muted);
  position: relative;
  padding: 0.35rem 0;
}

.em-nav a:hover,
.em-nav a.is-active {
  color: var(--em-text);
}

.em-nav a.is-active::after,
.em-nav a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--em-accent);
}

.em-header__social {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.em-header__phone {
  font-family: var(--em-font-display);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--em-accent);
  margin-right: 0.35rem;
  white-space: nowrap;
  width: auto !important;
  height: auto !important;
  border: none !important;
  background: transparent !important;
}

.em-header__phone:hover {
  color: var(--em-accent-hover);
  background: transparent !important;
}

.em-header__social a:not(.em-header__phone),
.em-footer__social a {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--em-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--em-chrome);
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.em-header__social a:not(.em-header__phone):hover,
.em-footer__social a:hover {
  background: var(--em-accent);
  border-color: var(--em-accent);
  color: #fff;
}

.em-nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 0;
  width: 2.5rem;
  height: 2.5rem;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 0;
}

.em-nav-toggle span {
  display: block;
  height: 2px;
  background: var(--em-text);
  width: 100%;
}

/* Hero */
.em-hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
}

.em-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.em-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: em-kenburns 18s ease-in-out infinite alternate;
}

.em-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(105deg, rgba(0, 0, 0, 0.92) 0%, rgba(0, 0, 0, 0.55) 48%, rgba(20, 0, 0, 0.4) 100%),
    linear-gradient(to top, rgba(0, 0, 0, 0.96) 0%, transparent 42%);
}

.em-hero__sheen {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, transparent 40%, rgba(227, 6, 19, 0.12) 50%, transparent 60%);
  mix-blend-mode: screen;
  pointer-events: none;
  animation: em-sheen 7s ease-in-out infinite;
}

.em-hero__content {
  max-width: calc(var(--em-max) + 4rem);
  margin: 0 auto;
  padding: 5rem 1.25rem 4.5rem;
  width: 100%;
}

.em-brand-mark {
  font-family: var(--em-font-display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 0.95;
  margin: 0 0 0.75rem;
  background: linear-gradient(180deg, #ffffff 0%, #ffffff 40%, var(--em-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.em-hero__eyebrow {
  display: inline-block;
  font-family: var(--em-font-display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--em-copper);
  margin-bottom: 0.75rem;
}

.em-hero__lead {
  max-width: 34rem;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--em-muted);
  margin: 0 0 1.75rem;
}

.em-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.em-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--em-font-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.9rem 1.4rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.em-btn:hover {
  transform: translateY(-2px);
}

.em-btn--primary {
  background: var(--em-accent);
  color: #fff;
}

.em-btn--primary:hover {
  background: var(--em-accent-hover);
}

.em-btn--ghost {
  background: transparent;
  border-color: var(--em-accent);
  color: var(--em-text);
}

.em-btn--ghost:hover {
  border-color: var(--em-accent);
  color: #fff;
}

/* Sections */
.em-section {
  padding: 5rem 1.25rem;
}

.em-section--elevated {
  background: #141414;
}

.em-section--steel {
  background:
    linear-gradient(180deg, rgba(227, 6, 19, 0.1) 0%, transparent 28%),
    linear-gradient(135deg, #0a0a0a 0%, #000000 45%, #1a0808 100%);
  border-block: 1px solid var(--em-border);
}

.em-section--band {
  background: #0a0a0a;
  box-shadow: inset 0 0 0 1px rgba(227, 6, 19, 0.12);
}

.em-container {
  max-width: var(--em-max);
  margin: 0 auto;
}

.em-section__head {
  max-width: 40rem;
  margin-bottom: 2.75rem;
}

.em-section__head h2 {
  font-family: var(--em-font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
  line-height: 1.15;
}

.em-section__head p {
  margin: 0;
  color: var(--em-muted);
}

.em-kicker {
  font-family: var(--em-font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--em-copper);
  display: block;
  margin-bottom: 0.5rem;
}

/* About split */
.em-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.em-split__media {
  position: relative;
}

.em-split__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--em-shadow);
  border: 1px solid var(--em-border);
}

.em-split__media::after {
  content: "";
  position: absolute;
  inset: 1rem -1rem -1rem 1rem;
  border: 1px solid var(--em-copper);
  z-index: -1;
  opacity: 0.55;
}

.em-split__text p {
  color: var(--em-muted);
  margin: 0 0 1rem;
}

.em-split__text p:last-child {
  margin-bottom: 0;
}

/* Process */
.em-process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  counter-reset: step;
}

.em-process__item {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--em-border);
  padding: 1.35rem 1.1rem;
  min-height: 9.5rem;
  position: relative;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.em-process__item:hover {
  border-color: var(--em-copper);
  transform: translateY(-4px);
}

.em-process__item::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--em-font-display);
  color: var(--em-accent);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.75rem;
}

.em-process__item h3 {
  font-family: var(--em-font-display);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
}

.em-process__item p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--em-muted);
}

/* Metals */
.em-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.em-chip {
  font-family: var(--em-font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--em-border);
  background: linear-gradient(180deg, rgba(227, 6, 19, 0.12), transparent);
  color: var(--em-text);
}

/* Sectors */
.em-sectors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.em-sector {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--em-border);
}

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

.em-sector:hover img {
  transform: scale(1.06);
}

.em-sector__label {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.25rem 1rem;
  background: linear-gradient(to top, rgba(10, 12, 16, 0.95), transparent);
  font-family: var(--em-font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 1rem;
}

/* Services */
.em-services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.em-service {
  background: var(--em-bg-soft);
  border: 1px solid var(--em-border);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.em-service:hover {
  border-color: var(--em-accent);
  transform: translateY(-4px);
}

.em-service img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
}

.em-service__body {
  padding: 1.25rem 1.35rem 1.5rem;
}

.em-service__body h3 {
  font-family: var(--em-font-display);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.em-service__body p {
  margin: 0;
  color: var(--em-muted);
  font-size: 0.95rem;
}

/* Social CTA */
.em-social-cta {
  position: relative;
  isolation: isolate;
  padding: 4.5rem 1.25rem;
  text-align: center;
  overflow: hidden;
}

.em-social-cta__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.em-social-cta__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.35) brightness(0.45);
}

.em-social-cta__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.92), rgba(30, 0, 0, 0.75));
}

.em-social-cta h2 {
  font-family: var(--em-font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.em-social-cta p {
  color: var(--em-muted);
  max-width: 32rem;
  margin: 0 auto 1.5rem;
}

.em-social-cta__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* Page header */
.em-page-header {
  padding: 4.5rem 1.25rem 3rem;
  background: var(--em-steel);
  border-bottom: 1px solid var(--em-border);
}

.em-page-header h1 {
  font-family: var(--em-font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0;
  max-width: var(--em-max);
  margin-inline: auto;
}

/* Contact */
.em-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.em-contact-card {
  background: var(--em-bg-elevated);
  border: 1px solid var(--em-border);
  padding: 1.75rem;
}

.em-contact-card h3 {
  font-family: var(--em-font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.em-contact-card p,
.em-contact-card a {
  color: var(--em-muted);
}

.em-contact-card a:hover {
  color: var(--em-accent);
}

.em-about {
  display: grid;
  gap: 2.75rem;
}

.em-about__block h2 {
  font-family: var(--em-font-display);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 1rem;
  color: var(--em-text);
  line-height: 1.25;
}

.em-about__block p {
  color: var(--em-muted);
  margin: 0 0 1rem;
}

.em-about__block p:last-child {
  margin-bottom: 0;
}

.em-about__list {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--em-muted);
}

.em-about__list li {
  margin-bottom: 0.45rem;
}

.em-about__list li::marker {
  color: var(--em-accent);
}

.em-about__closing {
  margin-top: 1.25rem !important;
  padding: 1.25rem 1.35rem;
  border-left: 3px solid var(--em-accent);
  background: rgba(227, 6, 19, 0.08);
  color: var(--em-text) !important;
}

.em-about__closing strong {
  color: var(--em-accent);
  font-family: var(--em-font-display);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.em-form {
  display: grid;
  gap: 0.85rem;
}

.em-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--em-muted);
}

.em-form input,
.em-form textarea {
  font: inherit;
  color: var(--em-text);
  background: var(--em-bg);
  border: 1px solid var(--em-border);
  padding: 0.85rem 1rem;
  border-radius: var(--em-radius);
}

.em-form input:focus,
.em-form textarea:focus {
  outline: 2px solid var(--em-copper);
  outline-offset: 1px;
}

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

/* Footer */
.em-footer {
  background: #000000;
  border-top: 1px solid var(--em-border);
  padding-top: 3.5rem;
}

.em-footer__grid {
  max-width: var(--em-max);
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}

.em-footer__brand p {
  color: var(--em-muted);
  margin: 1rem 0 0;
  max-width: 28rem;
}

.em-footer h3 {
  font-family: var(--em-font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.em-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.em-footer li + li {
  margin-top: 0.45rem;
}

.em-footer a:hover {
  color: var(--em-accent);
}

.em-footer__social {
  display: flex;
  gap: 0.65rem;
}

.em-footer__ig-handle {
  margin: 1rem 0 0;
  color: var(--em-muted);
  font-size: 0.9rem;
}

.em-footer__copy {
  border-top: 1px solid var(--em-border);
  padding: 1.25rem;
  text-align: center;
  color: var(--em-muted);
  font-size: 0.9rem;
}

.em-footer__copy p {
  margin: 0;
}

/* Reveal motion */
.em-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.em-reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes em-kenburns {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

@keyframes em-sheen {
  0%, 100% { opacity: 0.35; transform: translateX(-8%); }
  50% { opacity: 0.7; transform: translateX(8%); }
}

@media (max-width: 960px) {
  .em-process { grid-template-columns: repeat(3, 1fr); }
  .em-sectors { grid-template-columns: repeat(2, 1fr); }
  .em-services { grid-template-columns: repeat(2, 1fr); }
  .em-split { grid-template-columns: 1fr; gap: 2rem; }
  .em-footer__grid { grid-template-columns: 1fr 1fr; }
  .em-contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .em-header__phone {
    display: none;
  }
  .em-nav-toggle { display: flex; }
  .em-header__social { display: none; }
  .em-nav {
    position: fixed;
    inset: var(--em-header-h) 0 auto 0;
    background: rgba(0, 0, 0, 0.97);
    flex-direction: column;
    padding: 1.25rem;
    gap: 1rem;
    border-bottom: 1px solid var(--em-border);
    display: none;
    margin-left: 0;
  }
  .em-nav.is-open { display: flex; }
  .em-process { grid-template-columns: 1fr 1fr; }
  .em-services { grid-template-columns: 1fr; }
  .em-footer__grid { grid-template-columns: 1fr; }
  .em-hero { min-height: 78vh; }
}

/* Floating Action Buttons (yoncaik.com pattern) */
.floating-action-buttons {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 9999;
}

.fab-item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
  width: 100%;
}

.fab-icon {
  width: 56px;
  height: 56px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
}

.fab-label {
  position: absolute;
  right: 70px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  transform: translateX(10px);
  pointer-events: none;
  font-family: var(--em-font-body);
}

.fab-item:hover .fab-label {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.fab-item:hover .fab-icon {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.fab-whatsapp .fab-icon {
  background-color: #25d366;
}

.fab-phone .fab-icon {
  background-color: #e30613;
}

.fab-email .fab-icon {
  background-color: #007bb5;
}

.fab-scroll .fab-icon {
  background-color: #2a2a2a;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

#scroll-to-top {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#scroll-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.fab-whatsapp .fab-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25d366;
  opacity: 0.4;
  z-index: -1;
  animation: fab-pulse 2s infinite;
}

@keyframes fab-pulse {
  0% { transform: scale(1); opacity: 0.4; }
  100% { transform: scale(1.6); opacity: 0; }
}

@media (max-width: 768px) {
  .floating-action-buttons {
    bottom: 20px;
    right: 20px;
    gap: 12px;
  }

  .fab-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }

  .fab-label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .em-hero__media img,
  .em-hero__sheen,
  .em-reveal,
  .fab-instagram .fab-icon::after,
  .fab-whatsapp .fab-icon::after {
    animation: none !important;
    transition: none !important;
    opacity: 1;
    transform: none;
  }
}