/* ============================================================
   BSG AVIASI — Company Profile Website
   Primary: #00c2d4 (teal/cyan), Dark Navy: #0a1628
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #00c2d4;
  --primary-dark: #0098a8;
  --primary-light: #4dd9e8;
  --navy: #0a1628;
  --navy-mid: #0d2040;
  --navy-light: #132952;
  --white: #ffffff;
  --gray-100: #f0f4f8;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --transition: 0.3s ease;
  --font: 'Inter', system-ui, sans-serif;
  --font-display: 'Rajdhani', 'Inter', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--navy);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,194,212,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

.btn-wa {
  margin-top: 28px;
  font-size: 1rem;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background 0.4s, box-shadow 0.4s, padding 0.4s;
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10,22,40,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: 10px 0;
  backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo img,
.brand-logo svg {
  display: block;
  height: 50px;
  width: auto;
  object-fit: contain;
}

/* Shrink logo when navbar scrolled */
.navbar.scrolled .brand-logo img,
.navbar.scrolled .brand-logo svg {
  height: 42px;
  transition: height 0.3s ease;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
}
.brand-sub {
  font-size: 0.65rem;
  color: var(--primary);
  letter-spacing: 2.5px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 8px;
}
.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-links a:hover {
  color: var(--primary);
  background: rgba(0,194,212,0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0,194,212,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0,100,180,0.2) 0%, transparent 50%),
    linear-gradient(135deg, #0a1628 0%, #0d2040 50%, #0a1628 100%);
  z-index: 0;
}

/* Hero right-side product image */
.hero-image {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 52%;
  background-size: cover;
  background-position: center;
  z-index: 1;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.6) 25%, rgba(0,0,0,0.9) 100%);
  mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.6) 25%, rgba(0,0,0,0.9) 100%);
  opacity: 0.45;
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0;
  animation: particleFade var(--dur, 4s) var(--delay, 0s) infinite ease-in-out;
}

@keyframes particleFade {
  0%, 100% { opacity: 0; transform: translateY(0); }
  50% { opacity: 0.6; transform: translateY(-20px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 120px 24px 80px;
  max-width: 780px;
}

.hero-logo {
  margin-bottom: 28px;
}
.hero-logo img {
  /* logo is 220x138 landscape — set width so height ~100px proportionally */
  width: 160px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 20px rgba(0,194,212,0.5));
  animation: logoPulse 3s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { filter: drop-shadow(0 4px 20px rgba(0,194,212,0.4)); }
  50%       { filter: drop-shadow(0 6px 32px rgba(0,194,212,0.75)); }
}

.hero-badge {
  display: inline-block;
  background: rgba(0,194,212,0.15);
  border: 1px solid rgba(0,194,212,0.4);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-title .accent { color: var(--primary); }

.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.stat {}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,0.4);
  border-bottom: 2px solid rgba(255,255,255,0.4);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.4; }
  50% { transform: rotate(45deg) translateY(4px); opacity: 1; }
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-header.light .section-title { color: var(--white); }
.section-header.light .section-tag { color: var(--primary-light); }

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--gray-100); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text .lead {
  font-size: 1.15rem;
  color: var(--navy);
  line-height: 1.7;
  margin-bottom: 20px;
}
.about-text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.tag {
  background: rgba(0,194,212,0.1);
  border: 1px solid rgba(0,194,212,0.3);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  min-height: 180px;
}
.about-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s ease;
}
.about-card:hover .card-img {
  transform: scale(1.06);
}
.card-overlay {
  position: relative;
  z-index: 1;
  padding: 20px 18px;
  height: 100%;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(to top, rgba(10,22,40,0.9) 0%, rgba(10,22,40,0.3) 60%, transparent 100%);
}
.card-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}
.card-overlay h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.card-overlay p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.4;
}

/* ============================================================
   VISION & MISSION
   ============================================================ */
.vision {
  position: relative;
  background: var(--navy);
  overflow: hidden;
}

.vision-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 50%, rgba(0,194,212,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 50%, rgba(0,80,160,0.15) 0%, transparent 55%);
  z-index: 0;
}
.vision .container { position: relative; z-index: 1; }

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 64px;
}

.vm-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,194,212,0.2);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  transition: var(--transition);
}
.vm-card:hover {
  background: rgba(0,194,212,0.08);
  border-color: rgba(0,194,212,0.5);
  transform: translateY(-4px);
}

.vm-icon {
  margin-bottom: 24px;
}

.vm-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}
.vm-card p {
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  font-size: 1.02rem;
}
.vm-card p strong { color: var(--primary-light); }

.values-row {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.value-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  font-weight: 500;
}
.value-icon {
  font-size: 2rem;
}

/* ============================================================
   COMPETENCIES
   ============================================================ */
.competencies { background: var(--white); }

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

.comp-card {
  position: relative;
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  overflow: hidden;
}
.comp-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  transform: scaleX(0);
  transition: var(--transition);
}
.comp-card:hover::before { transform: scaleX(1); }
.comp-card:hover {
  background: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.comp-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(0,194,212,0.15);
  line-height: 1;
  margin-bottom: 8px;
}
.comp-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}
.comp-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.3;
}
.comp-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   PRODUCTS & SERVICES
   ============================================================ */
.products { background: var(--gray-100); }

.filter-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  background: var(--white);
  border: 2px solid var(--gray-200);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--navy);
}

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

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.product-card.hidden { display: none; }

.product-header {
  position: relative;
  padding: 20px 16px 16px;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  min-height: 200px;
  background-size: cover !important;
  background-position: center !important;
}
.product-year {
  background: rgba(0,0,0,0.55);
  color: rgba(255,255,255,0.95);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  letter-spacing: 1px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.15);
}

.product-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.3;
}
.product-client {
  font-size: 0.8rem;
  color: var(--primary-dark);
  font-weight: 600;
  margin-bottom: 14px;
}
.product-features {
  flex: 1;
  margin-bottom: 16px;
}
.product-features li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 3px 0 3px 16px;
  position: relative;
  line-height: 1.4;
}
.product-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.7rem;
  top: 4px;
}

.product-tag {
  display: inline-block;
  background: rgba(0,194,212,0.1);
  border: 1px solid rgba(0,194,212,0.3);
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  align-self: flex-start;
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.experience {
  position: relative;
  background: var(--navy-mid);
  overflow: hidden;
}
.experience-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0d2040 0%, #0a1628 100%);
  z-index: 0;
}
.experience .container { position: relative; z-index: 1; }

.exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.exp-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,194,212,0.2);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.exp-card:hover {
  border-color: rgba(0,194,212,0.5);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.3);
}

.exp-card-img {
  height: 160px;
  background-size: cover;
  background-position: center;
  opacity: 0.75;
  transition: opacity 0.3s, transform 0.4s;
}
.exp-card:hover .exp-card-img {
  opacity: 0.9;
  transform: scale(1.04);
}

.exp-card-body {
  padding: 28px 24px;
}

.exp-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.exp-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.3;
}
.exp-card li {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  padding: 5px 0 5px 16px;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.exp-card li:last-child { border-bottom: none; }
.exp-card li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.7rem;
  top: 6px;
}

.clients-logos {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.client-logo-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 16px 10px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}
.client-logo-card:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(0,194,212,0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.client-logo-card img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  transition: filter 0.3s;
}
.client-logo-card:hover img {
  filter: brightness(1.1) saturate(1.15);
}
.client-logo-card span {
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  text-align: center;
  line-height: 1.3;
  letter-spacing: 0.3px;
}

@media (max-width: 1024px) {
  .clients-logos { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .clients-logos { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .client-logo-card img { width: 52px; height: 52px; }
}
@media (max-width: 480px) {
  .clients-logos { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .client-logo-card { padding: 12px 8px 10px; }
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}

.contact-info { }

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  align-items: flex-start;
}
.contact-icon {
  font-size: 1.5rem;
  width: 48px;
  height: 48px;
  background: rgba(0,194,212,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item h5 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.contact-item p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}
.contact-item a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.contact-item a:hover { color: var(--primary); }

.contact-form-wrap {
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--gray-200);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 0.92rem;
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,194,212,0.15);
}
.form-group textarea { resize: vertical; }

.req {
  color: var(--primary);
  font-weight: 700;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: -12px 0 16px;
  padding-left: 2px;
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.12);
}

.form-note {
  margin-top: 14px;
  font-size: 0.88rem;
  text-align: center;
  min-height: 22px;
  padding: 0 4px;
  line-height: 1.5;
  border-radius: 8px;
  transition: all 0.3s ease;
}
.form-note.success {
  color: #059669;
  background: rgba(5,150,105,0.08);
  border: 1px solid rgba(5,150,105,0.25);
  padding: 10px 16px;
}
.form-note.error {
  color: #dc2626;
  background: rgba(220,38,38,0.06);
  border: 1px solid rgba(220,38,38,0.2);
  padding: 10px 16px;
}

/* Submit button loading state */
#submitBtn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy);
  padding: 64px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-brand { margin-bottom: 16px; }
.footer-brand .brand-logo img { height: 44px; }
.footer-brand p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  max-width: 300px;
}

.footer-links h5,
.footer-contact h5 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.footer-links a {
  display: block;
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  padding: 5px 0;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--primary); }

.footer-contact p {
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  padding: 5px 0;
  line-height: 1.5;
}

.footer-bottom {
  padding: 20px 24px;
  text-align: center;
}
.footer-bottom p {
  color: rgba(255,255,255,0.3);
  font-size: 0.82rem;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--navy);
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,194,212,0.4);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 900;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .comp-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .exp-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .hero-image { display: none; }
  .section { padding: 72px 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    bottom: 0;
    background: rgba(10,22,40,0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.2rem; }
  .nav-toggle { display: flex; z-index: 1000; }
  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero-title { font-size: 2.4rem; }
  .hero-stats { gap: 24px; }

  .vm-grid { grid-template-columns: 1fr; }
  .comp-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }

  .hero-actions { flex-direction: column; align-items: flex-start; }
  .values-row { gap: 24px; }
  .hero-stats { flex-direction: column; gap: 20px; }

  .filter-tabs { gap: 8px; }
  .filter-btn { font-size: 0.78rem; padding: 8px 16px; }

  .contact-form-wrap { padding: 28px 20px; }
  .vm-card { padding: 32px 24px; }

  .about-visual { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-content { padding-top: 100px; }
  .about-visual { grid-template-columns: 1fr; }
  .section-title { font-size: 1.8rem; }
  .back-to-top { bottom: 16px; right: 16px; }
}

/* ============================================================
   LIGHTBOX
   ============================================================ */

/* Zoom cursor & hover hint on clickable image areas */
.product-header,
.exp-card-img,
.about-card {
  cursor: zoom-in;
}

.product-header::after,
.exp-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,194,212,0.0) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Ccircle cx='10' cy='10' r='7'/%3E%3Cline x1='15' y1='15' x2='21' y2='21'/%3E%3Cline x1='10' y1='7' x2='10' y2='13'/%3E%3Cline x1='7' y1='10' x2='13' y2='10'/%3E%3C/svg%3E") center/36px no-repeat;
  opacity: 0;
  transition: opacity 0.25s ease, background-color 0.25s ease;
  z-index: 3;
  border-radius: inherit;
}
.product-header:hover::after,
.exp-card-img:hover::after {
  opacity: 1;
  background-color: rgba(0,194,212,0.18);
}

/* About card zoom hint */
.about-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,194,212,0.0) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Ccircle cx='10' cy='10' r='7'/%3E%3Cline x1='15' y1='15' x2='21' y2='21'/%3E%3Cline x1='10' y1='7' x2='10' y2='13'/%3E%3Cline x1='7' y1='10' x2='13' y2='10'/%3E%3C/svg%3E") center/36px no-repeat;
  opacity: 0;
  transition: opacity 0.25s ease, background-color 0.25s ease;
  z-index: 3;
  border-radius: inherit;
  pointer-events: none;
}
.about-card:hover::after {
  opacity: 1;
  background-color: rgba(0,194,212,0.2);
}

/* ── Overlay backdrop ─────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(5, 10, 20, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ── Image wrapper ────────────────────────────────────────── */
.lightbox-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: min(92vw, 1100px);
  max-height: 82vh;
}

.lightbox-img {
  display: block;
  max-width: 100%;
  max-height: 82vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 30px 100px rgba(0,0,0,0.7), 0 0 0 1px rgba(0,194,212,0.15);
  transform: scale(0.88) translateY(10px);
  transition: transform 0.38s cubic-bezier(0.34, 1.5, 0.64, 1),
              opacity  0.25s ease;
  opacity: 0;
  /* JS controls opacity & transform directly for slide transition */
  will-change: transform, opacity;
}

/* ── Close button ─────────────────────────────────────────── */
.lightbox-close {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  color: var(--white);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
  z-index: 10001;
}
.lightbox-close:hover {
  background: rgba(0,194,212,0.25);
  border-color: var(--primary);
  transform: rotate(90deg) scale(1.1);
}

/* ── Prev / Next navigation ───────────────────────────────── */
.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: var(--white);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
  z-index: 10001;
}
.lightbox-nav:hover {
  background: rgba(0,194,212,0.25);
  border-color: var(--primary);
}
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
.lightbox-prev:hover { transform: translateY(-50%) scale(1.1); }
.lightbox-next:hover { transform: translateY(-50%) scale(1.1); }

/* ── Caption ──────────────────────────────────────────────── */
.lightbox-caption {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.85);
  font-size: 0.88rem;
  font-weight: 500;
  background: rgba(10,22,40,0.75);
  border: 1px solid rgba(0,194,212,0.25);
  padding: 8px 24px;
  border-radius: 50px;
  white-space: nowrap;
  max-width: 80vw;
  overflow: hidden;
  text-overflow: ellipsis;
  backdrop-filter: blur(4px);
  transition: opacity 0.3s ease;
  z-index: 10001;
}

/* ── Counter ──────────────────────────────────────────────── */
.lightbox-counter {
  position: fixed;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.55);
  font-size: 0.8rem;
  letter-spacing: 2px;
  z-index: 10001;
}

/* ── Mobile adjustments ───────────────────────────────────── */
@media (max-width: 768px) {
  .lightbox-nav { display: none; }
  .lightbox-caption { font-size: 0.78rem; padding: 6px 16px; bottom: 16px; }
  .lightbox-close  { top: 12px; right: 12px; width: 40px; height: 40px; font-size: 1.3rem; }
}