/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

:root {
  --red: #c41230;
  --red-dark: #a00e28;
  --red-light: rgba(196,18,48,0.08);
  --dark: #1a1a2e;
  --gray-900: #222;
  --gray-700: #555;
  --gray-400: #999;
  --gray-200: #e8e8e8;
  --gray-100: #f5f5f5;
  --white: #fff;
  --font: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --max-w: 1200px;
  --header-h: 80px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-900);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

/* Branded text selection */
::selection {
  background: rgba(196,18,48,0.15);
  color: var(--red-dark);
}
::-moz-selection {
  background: rgba(196,18,48,0.15);
  color: var(--red-dark);
}

/* Keyboard focus visible */
*:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
  border-radius: 2px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Page Transition ===== */
.page-transition {
  opacity: 0;
  animation: pageIn 0.5s 0.1s forwards ease;
}
@keyframes pageIn {
  to { opacity: 1; }
}
body.navigating .page-transition {
  animation: pageOut 0.3s forwards ease;
}
@keyframes pageOut {
  to { opacity: 0; transform: translateY(-8px); }
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 0;
  height: 3px;
  background: var(--red);
  z-index: 1001;
  transition: none;
  pointer-events: none;
}

/* ===== Page Preloader ===== */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.preloader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.preloader-inner {
  text-align: center;
}
.preloader-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  animation: preloaderPulse 1.2s ease-in-out infinite;
}
.preloader-logo img {
  width: 100%;
  height: auto;
}
.preloader-bar {
  width: 120px;
  height: 3px;
  background: var(--gray-200);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}
.preloader-bar::after {
  content: '';
  display: block;
  width: 40%;
  height: 100%;
  background: var(--red);
  border-radius: 2px;
  animation: preloaderSlide 1s ease-in-out infinite;
}
@keyframes preloaderPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.05); opacity: 1; }
}
@keyframes preloaderSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: none;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 1px 8px rgba(0,0,0,0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo img { height: 48px; width: auto; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 1.2rem; color: var(--red); }

.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-links a:hover, .nav-links a.active { color: var(--red); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* Hamburger menu with X animation */
.menu-toggle {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 20px;
  position: relative;
  z-index: 1002;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-900);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: absolute;
  left: 0;
}
.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 9px; }
.menu-toggle span:nth-child(3) { top: 18px; }
.menu-toggle.active span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: translateX(-8px); }
.menu-toggle.active span:nth-child(3) { top: 9px; transform: rotate(-45deg); }


/* ===== Hero / Banner ===== */
.hero {
  margin-top: var(--header-h);
  position: relative;
  height: 75vh;
  min-height: 480px;
  overflow: hidden;
  background: #08081a;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 8%;
  z-index: 2;
  color: var(--white);
}
.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(24px);
  animation: heroFadeUp 0.8s 0.3s forwards cubic-bezier(0.4, 0, 0.2, 1);
}
.hero-content p {
  font-size: 1.15rem;
  max-width: 560px;
  opacity: 0;
  margin-bottom: 28px;
  font-weight: 300;
  animation: heroFadeUp 0.8s 0.5s forwards cubic-bezier(0.4, 0, 0.2, 1);
}
.hero-content > div {
  opacity: 0;
  animation: heroFadeUp 0.8s 0.7s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes heroFadeUp {
  to {
    opacity: 0.95;
    transform: translateY(0);
  }
}


/* ===== Page Hero (subpages) ===== */
.page-hero {
  margin-top: var(--header-h);
  height: auto;
  aspect-ratio: 3.2 / 1;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  text-align: center;
  color: var(--white);
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.75) 0%, rgba(26,26,46,0.5) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 0.7s 0.15s forwards cubic-bezier(0.4, 0, 0.2, 1);
}
.page-hero .breadcrumb {
  font-size: 0.95rem;
  opacity: 0;
  animation: heroFadeUp 0.7s 0.3s forwards cubic-bezier(0.4, 0, 0.2, 1);
}
.page-hero .breadcrumb a { transition: color var(--transition); }
.page-hero .breadcrumb a:hover { color: var(--red); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}
.btn:active::before {
  width: 300px;
  height: 300px;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(196,18,48,0.25);
}
.btn-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(196,18,48,0.35);
}
.btn-outline { border: 2px solid var(--white); color: var(--white); background: transparent; }
.btn-outline:hover { background: var(--white); color: var(--red); }
.btn-outline-dark { border: 2px solid var(--red); color: var(--red); background: transparent; }
.btn-outline-dark:hover {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(196,18,48,0.25);
  transform: translateY(-2px);
}

/* ===== Section Helpers ===== */
section { padding: 88px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.section-header .subtitle {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--red);
  margin-bottom: 6px;
  font-weight: 600;
}
.section-header p {
  color: var(--gray-700);
  max-width: 600px;
  margin: 0 auto;
}

.bg-light { background: var(--gray-100); }
.bg-dark { background: var(--dark); color: var(--white); }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--dark);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(196,18,48,0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(196,18,48,0.1) 0%, transparent 40%);
  animation: ctaGlow 8s ease-in-out infinite alternate;
}
@keyframes ctaGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-3%, -3%); }
}
.cta-section .container { position: relative; z-index: 1; }

/* ===== About Preview (Homepage) ===== */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-preview .text h3 { font-size: 1.5rem; margin-bottom: 16px; color: var(--gray-900); }
.about-preview .text p { color: var(--gray-700); margin-bottom: 20px; }
.about-preview .image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.about-preview .image img { width: 100%; height: 360px; object-fit: cover; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.about-preview .image:hover img { transform: scale(1.03); }

/* Play button overlay */
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  cursor: pointer;
}
.play-btn {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  transition: all var(--transition);
}
.play-btn::after {
  content: '';
  display: block;
  width: 0; height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--red);
  margin-left: 4px;
}
.play-overlay:hover .play-btn {
  transform: scale(1.1);
  box-shadow: 0 6px 32px rgba(0,0,0,0.25);
}
/* Pulse ring */
.play-btn::before {
  content: '';
  position: absolute;
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  animation: playPulse 2s ease-out infinite;
}
@keyframes playPulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stat-item .number { font-size: 2.8rem; font-weight: 800; color: var(--red); letter-spacing: -0.02em; }
.stat-item .label { font-size: 0.85rem; color: var(--gray-700); margin-top: 4px; font-weight: 500; }

/* Stats on dark bg - add dividers */
.bg-dark .stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.12);
}

/* ===== Industries Grid ===== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.industry-card {
  position: relative;
  height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.industry-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.industry-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.industry-card:hover img { transform: scale(1.08); }
.industry-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.05) 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: var(--white);
  transition: background 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.industry-card:hover .overlay {
  background: linear-gradient(to top, rgba(196,18,48,0.88) 0%, rgba(0,0,0,0.15) 65%);
}
.industry-card .overlay h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
  font-weight: 600;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 8px;
}
.industry-card:hover .overlay h3 { transform: translateY(-4px); }
/* Arrow indicator on hover */
.industry-card .overlay h3::after {
  content: '\2192';
  font-size: 1.1rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.industry-card:hover .overlay h3::after {
  opacity: 1;
  transform: translateX(0);
}
.industry-card .overlay p {
  font-size: 0.85rem;
  opacity: 0;
  max-height: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  line-height: 1.5;
  font-weight: 300;
}
.industry-card:hover .overlay p { opacity: 0.9; max-height: 120px; }

/* ===== Industry Sticky Nav (pill bar) ===== */
.industry-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.industry-nav::-webkit-scrollbar { display: none; }
.industry-nav .container {
  display: flex;
  gap: 8px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.industry-nav a {
  flex-shrink: 0;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--gray-100);
  transition: all var(--transition);
  white-space: nowrap;
}
.industry-nav a:hover,
.industry-nav a.active {
  background: var(--red);
  color: var(--white);
}

/* ===== About Page ===== */
.about-section { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-section.reverse { direction: rtl; }
.about-section.reverse > * { direction: ltr; }
.about-section h3 { font-size: 1.5rem; margin-bottom: 16px; color: var(--red); }
.about-section p { color: var(--gray-700); margin-bottom: 12px; }

/* Chairman section */
.chairman-section {
  display: flex;
  gap: 48px;
  max-width: 1000px;
  margin: 0 auto;
  align-items: flex-start;
}
.chairman-photo {
  flex-shrink: 0;
  text-align: center;
}
.chairman-photo img {
  width: 240px;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.chairman-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-top: 16px;
}
.chairman-title {
  font-size: 0.95rem;
  color: var(--red);
  font-weight: 500;
  margin-top: 4px;
}
.chairman-quote {
  position: relative;
  padding: 0 24px;
  flex: 1;
}
.chairman-quote::before {
  content: '\201C';
  position: absolute;
  top: -32px;
  left: -8px;
  font-size: 6rem;
  color: var(--red);
  opacity: 0.12;
  font-family: Georgia, serif;
  line-height: 1;
}
.chairman-quote p {
  color: var(--gray-700);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.85;
}
.chairman-quote .chairman-sign {
  color: var(--red);
  font-weight: 600;
  font-size: 1.1rem;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 2px solid var(--red);
  display: inline-block;
}

/* Timeline */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 2px;
  background: var(--gray-200);
}
.timeline-item {
  position: relative;
  margin-bottom: 32px;
  padding-left: 4px;
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--red);
  transition: background var(--transition), transform var(--transition);
}
.timeline-item.visible::before {
  background: var(--red-light);
}
.timeline-item .year { font-weight: 700; font-size: 1.1rem; color: var(--red); margin-bottom: 4px; }
.timeline-item p { color: var(--gray-700); font-size: 0.95rem; }

/* ===== Industry Detail ===== */
.industry-detail { margin-bottom: 48px; }
.industry-detail:last-child { margin-bottom: 0; }
.industry-detail h3 { font-size: 1.4rem; color: var(--gray-900); margin-bottom: 12px; padding-bottom: 12px; border-bottom: 2px solid var(--red); display: inline-block; }
.industry-detail p { color: var(--gray-700); margin-bottom: 12px; }
.industry-detail .detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 20px; }
.detail-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  border-left: 4px solid var(--red);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.detail-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.bg-light .detail-card { background: var(--white); }
.detail-card h4 { font-size: 1rem; margin-bottom: 8px; color: var(--gray-900); }
.detail-card p { font-size: 0.9rem; }

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info h3 { font-size: 1.3rem; margin-bottom: 24px; color: var(--gray-900); }
.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  padding: 18px;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.contact-item:hover {
  background: var(--gray-100);
  transform: translateX(4px);
}
.contact-icon {
  width: 48px; height: 48px;
  background: var(--red);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--white);
  box-shadow: 0 2px 8px rgba(196,18,48,0.25);
  transition: transform var(--transition);
}
.contact-item:hover .contact-icon { transform: scale(1.05); }
.contact-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.contact-item h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-item p { color: var(--gray-700); font-size: 0.9rem; }

/* Floating label form */
.contact-form h3 { font-size: 1.3rem; color: var(--gray-900); }
.form-group {
  position: relative;
  margin-bottom: 20px;
}
.form-group label {
  position: absolute;
  left: 16px;
  top: 14px;
  font-size: 0.95rem;
  color: var(--gray-400);
  pointer-events: none;
  transition: all 0.2s ease;
  background: var(--white);
  padding: 0 4px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border var(--transition), box-shadow var(--transition);
  outline: none;
  background: var(--white);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(196,18,48,0.1);
}
.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -8px;
  left: 12px;
  font-size: 0.75rem;
  color: var(--red);
  font-weight: 500;
}
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form .form-row .form-group { margin-bottom: 0; }

/* Form submit button states */
.contact-form .btn-primary {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.contact-form .btn-primary:active {
  transform: scale(0.97);
}

/* Map */
.map-section { padding: 0; }
.map-section iframe {
  filter: grayscale(0.3) contrast(1.05);
  transition: filter var(--transition);
}
.map-section iframe:hover { filter: grayscale(0) contrast(1); }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--red);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(196,18,48,0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
}
.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--red-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(196,18,48,0.4);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p { margin-top: 16px; font-size: 0.9rem; line-height: 1.7; }
.footer-social {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.footer-social a {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.footer-social a:hover {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-2px);
}
.footer-social svg {
  width: 13px; height: 13px;
  fill: currentColor;
  stroke: none;
}
.footer-col h4 {
  color: var(--white);
  margin-bottom: 16px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  margin-bottom: 10px;
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col a:hover { color: var(--red); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: #ffffff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    z-index: 1001;
    display: flex;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 20px 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    border-bottom: none;
    display: block;
    width: auto;
  }
  .nav-links a::after { display: none; }
  .nav-links a:hover, .nav-links a.active { color: var(--red); }
  .menu-toggle { display: flex; }

  .hero { height: 65vh; min-height: 420px; }
  .hero-content { padding-left: 6%; padding-right: 6%; }
  .hero-content h1 { font-size: 2.2rem; }
  .about-preview, .about-section, .about-section.reverse { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .bg-dark .stat-item + .stat-item::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .industry-detail .detail-grid { grid-template-columns: 1fr; }
  .page-hero { background-attachment: scroll; aspect-ratio: auto; height: 300px; }
}

@media (max-width: 600px) {
  :root { --header-h: 64px; }
  .logo img { height: 36px; }
  .hero {
    height: calc(100svh - var(--header-h));
    min-height: 400px;
  }
  .hero-content {
    padding: 0 24px;
    text-align: center;
    align-items: center;
  }
  .hero-content h1 {
    font-size: 1.65rem;
    line-height: 1.25;
  }
  .hero-content h1 br { display: none; }
  .hero-content p {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }
  .hero-content > div {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 280px;
  }
  .hero-content > div .btn { margin-left: 0 !important; justify-content: center; }
  .industries-grid { grid-template-columns: 1fr; }
  .page-hero { height: 220px; aspect-ratio: auto; }
  .page-hero h1 { font-size: 1.6rem; }
  section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }
  .section-header h2 { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-form .form-row { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item .number { font-size: 2rem; }
  .stat-item { padding: 16px 12px; }
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
  .chairman-section { flex-direction: column; align-items: center; gap: 32px; }
  .chairman-photo img { width: 180px; height: 240px; }
  .chairman-quote::before { font-size: 4rem; top: -20px; }
  .industry-nav .container { gap: 6px; }
  .industry-nav a { padding: 6px 14px; font-size: 0.8rem; }
  .about-preview .image img { height: 240px; }
  .industry-card { height: 260px; }
}