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

:root {
  --primary-color: #1565c0;
  --primary-dark: #0d47a1;
  --primary-light: #42a5f5;
  --secondary-color: #00acc1;
  --accent-color: #ffa726;
  --dark-bg: #1a1a2e;
  --dark-alt: #2c2c4a;
  --text-dark: #333;
  --text-light: #666;
  --text-lighter: #999;
  --border-color: #e5e5e5;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-primary: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
  --gradient-accent: linear-gradient(135deg, #42a5f5 0%, #00acc1 100%);
}

html { scroll-behavior: smooth; }
body { 
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Arial, sans-serif; 
  color: var(--text-dark); 
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* Smooth Scroll Reveal Animation */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===================== TOP BAR ===================== */
.topbar {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #ccc;
  font-size: 13px;
  padding: 8px 0;
  position: relative;
  overflow: hidden;
}
.topbar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
  animation: shimmer 3s infinite;
}
@keyframes shimmer {
  0%, 100% { transform: translateX(-100%); }
  50% { transform: translateX(100%); }
}
.topbar-inner {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
  position: relative;
  z-index: 1;
}
.topbar-links { display: flex; gap: 16px; }
.topbar-links a { 
  color: #ccc; 
  transition: var(--transition-fast);
  position: relative;
  padding: 4px 0;
}
.topbar-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-light);
  transition: width var(--transition-smooth);
}
.topbar-links a:hover { color: #fff; }
.topbar-links a:hover::after { width: 100%; }
.topbar-lang { display: flex; gap: 10px; align-items: center; }
.topbar-lang a {
  color: #ccc;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  transition: var(--transition-fast);
  padding: 4px 8px;
  border-radius: 4px;
}
.topbar-lang a:hover { 
  color: #fff; 
  background: rgba(255,255,255,0.1);
}
.topbar-lang img { border-radius: 3px; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }

/* ===================== HEADER ===================== */
.header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition-smooth);
}
.header.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
  background: rgba(255, 255, 255, 0.95);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  transition: padding var(--transition-smooth);
}
.header-left {
  flex: 0 0 auto;
  margin-right: auto;
}
.header-right {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}
.header.scrolled .header-inner {
  padding: 12px 20px;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-smooth);
}
.logo:hover {
  transform: translateY(-1px) scale(1.02);
}
.logo-image {
  height: 68px;
  width: auto;
  filter: drop-shadow(0 6px 16px rgba(13, 71, 161, 0.22));
  transform-origin: center;
  animation: logoFloat 3.6s ease-in-out infinite;
}
.logo-divider {
  width: 2px;
  height: 44px;
  background: linear-gradient(180deg, rgba(21, 101, 192, 0.2), rgba(21, 101, 192, 0.75), rgba(21, 101, 192, 0.2));
}
.logo-texts {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-main {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: 1.2px;
  color: var(--primary-color);
  text-transform: uppercase;
}
.logo-dot {
  margin: 0 2px;
}
.logo-sub {
  margin-top: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: #2a3f57;
  text-transform: uppercase;
}
.logo:hover .logo-image {
  animation-duration: 1.8s;
}
@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* Navbar */
.navbar ul {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}
.navbar ul li {
  position: relative;
}
.navbar ul li a {
  padding: 11px 17px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: .5px;
  border-radius: 6px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

@media (max-width: 1280px) and (min-width: 1025px) {
  .logo-image { height: 60px; }
  .logo-main { font-size: 36px; }
  .logo-sub { font-size: 11px; letter-spacing: 2.2px; }
  .navbar ul li a { padding: 10px 12px; font-size: 15px; }
}
.navbar ul li a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
  z-index: -1;
}
.navbar ul li a:hover::before,
.navbar ul li a.active::before {
  opacity: 0.1;
}
.navbar ul li a:hover,
.navbar ul li a.active {
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: var(--transition-fast);
}
.hamburger:hover {
  background: rgba(0,0,0,0.05);
}
.hamburger span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition-smooth);
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ===================== HERO SLIDER ===================== */
.hero-slider {
  position: relative;
  overflow: hidden;
  height: 520px;
  box-shadow: inset 0 -2px 40px rgba(0,0,0,0.1);
}
.slides { height: 100%; position: relative; }
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}
.slide.active { opacity: 1; z-index: 1; }
.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 30, 60, 0.75) 0%, rgba(21, 101, 192, 0.55) 100%);
}
.slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(0,0,0,0.3) 100%);
}
.slide-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 800px;
  padding: 0 20px;
  animation: fadeUp 1s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}
.slide-content h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  text-shadow: 0 4px 16px rgba(0,0,0,.5);
  line-height: 1.2;
  background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,0.9) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.slide-content p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 32px;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
  font-weight: 400;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.btn-primary {
  display: inline-block;
  background: var(--gradient-primary);
  color: #fff;
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  transition: var(--transition-smooth);
  border: 2px solid rgba(255,255,255,0.3);
  box-shadow: 0 4px 16px rgba(21, 101, 192, 0.4);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
  transition: var(--transition-smooth);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(21, 101, 192, 0.5);
  border-color: rgba(255,255,255,0.5);
}
.btn-primary:active {
  transform: translateY(-1px);
}

/* Slider Dots */
.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: 30px;
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  border: 2px solid rgba(255,255,255,0.3);
  transition: var(--transition-smooth);
  position: relative;
}
.dot:hover {
  background: rgba(255,255,255,0.6);
  transform: scale(1.2);
}
.dot.active { 
  background: #fff; 
  width: 28px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

/* Slider Arrows */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.slider-btn:hover { 
  background: rgba(255,255,255,0.3); 
  transform: translateY(-50%) scale(1.1);
  border-color: rgba(255,255,255,0.5);
}
.slider-btn:active {
  transform: translateY(-50%) scale(0.95);
}
.slider-btn.prev { left: 24px; }
.slider-btn.next { right: 24px; }

/* ===================== FEATURED PROJECTS ===================== */
.featured-projects {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
  padding: 48px 0 56px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}
.featured-projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.project-card {
  background: #fff;
  border: 1px solid var(--border-color);
  overflow: hidden;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  cursor: pointer;
  position: relative;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
  z-index: 0;
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.project-card:hover::before {
  opacity: 0.05;
}
.project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 1;
}
.project-card:hover img { 
  transform: scale(1.1); 
}
.project-caption {
  padding: 16px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: .8px;
  background: #fff;
  position: relative;
  z-index: 1;
  transition: var(--transition-smooth);
}
.project-card:hover .project-caption {
  color: var(--primary-color);
}

/* ===================== CONTENT SECTION ===================== */
.content-section {
  padding: 64px 0 72px;
  background: #fff;
  position: relative;
}
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

/* About */
.about-col { 
  border-right: 1px solid #eee; 
  padding-right: 36px;
  position: relative;
}
.about-col::after {
  content: '';
  position: absolute;
  top: 0;
  right: -1px;
  width: 1px;
  height: 60px;
  background: var(--gradient-primary);
}
.blue-line {
  width: 60px;
  height: 5px;
  background: var(--gradient-primary);
  margin-bottom: 20px;
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.3);
  position: relative;
  overflow: hidden;
}
.blue-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: shimmer 2s infinite;
}
.about-col p {
  color: var(--text-light);
  line-height: 1.9;
  font-size: 15px;
  position: relative;
}
.about-col strong {
  color: var(--text-dark);
  font-weight: 700;
}

/* Solutions */
.solutions-col h3,
.news-col h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--dark-bg);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary-color);
  position: relative;
  display: inline-block;
}
.solutions-col h3::after,
.news-col h3::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 40%;
  height: 3px;
  background: var(--accent-color);
}
.solutions-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 12px 12px 0;
  border-bottom: 1px dashed #e5e5e5;
  font-size: 14.5px;
  color: var(--text-dark);
  transition: var(--transition-smooth);
  cursor: pointer;
  position: relative;
}
.solutions-list li::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, rgba(21, 101, 192, 0.08) 0%, transparent 100%);
  transition: width var(--transition-smooth);
  border-radius: 4px;
}
.solutions-list li:hover { 
  color: var(--primary-color); 
  padding-left: 12px;
  font-weight: 600;
}
.solutions-list li:hover::before {
  width: calc(100% + 24px);
}
.dash { 
  color: var(--primary-color); 
  font-weight: 700; 
  font-size: 18px;
  transition: var(--transition-fast);
}
.solutions-list li:hover .dash {
  transform: translateX(4px);
}

/* News */
.news-featured {
  margin-bottom: 24px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  cursor: pointer;
}
.news-featured:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.news-featured img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.news-featured:hover img {
  transform: scale(1.08);
}
.news-featured p {
  padding: 16px 18px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  background: linear-gradient(180deg, #f9f9f9 0%, #fff 100%);
  border: 1px solid #eee;
  border-top: none;
}
.news-list li {
  padding: 14px 0;
  border-bottom: 1px solid #eee;
  transition: var(--transition-fast);
  position: relative;
  padding-left: 12px;
}
.news-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0;
  background: var(--gradient-primary);
  transition: height var(--transition-smooth);
  border-radius: 2px;
}
.news-list li:hover::before {
  height: 70%;
}
.news-list li a {
  font-size: 14px;
  color: var(--text-dark);
  display: block;
  margin-bottom: 6px;
  transition: var(--transition-fast);
  font-weight: 500;
  line-height: 1.5;
}
.news-list li:hover a { 
  color: var(--primary-color); 
  padding-left: 8px;
}
.news-date {
  font-size: 12px;
  color: var(--text-lighter);
  font-weight: 500;
}

/* ===================== FOOTER ===================== */
.footer {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #ccc;
  padding: 56px 0 40px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
}
.footer::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(66, 165, 245, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr 1.4fr;
  gap: 48px;
  position: relative;
  z-index: 1;
}

/* Footer Brand */
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  transition: var(--transition-smooth);
}
.footer-brand .footer-logo:hover {
  transform: translateY(-2px);
}
.footer-logo-image {
  height: 50px;
  width: auto;
  filter: drop-shadow(0 6px 16px rgba(79, 195, 247, 0.35));
}
.footer-logo-texts {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.footer-logo-main {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #ffffff;
  text-transform: uppercase;
}
.footer-logo-sub {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 2.6px;
  color: #b5dfff;
  text-transform: uppercase;
  font-weight: 700;
}
.footer-brand p {
  font-size: 13.5px;
  color: #d7e8f5;
  line-height: 1.8;
}

/* Footer Contact */
.footer-contact h4,
.footer-newsletter h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 18px;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}
.footer-contact h4::after,
.footer-newsletter h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 50%;
  height: 2px;
  background: var(--gradient-accent);
}
.footer-contact p {
  font-size: 13.5px;
  color: #bbb;
  line-height: 1.85;
  margin-bottom: 8px;
}
.footer-contact strong { color: #e0e0e0; }

/* Newsletter */
.newsletter-form {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  max-width: 380px;
  box-shadow: var(--shadow-md);
  border-radius: 8px;
  overflow: hidden;
}
.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  font-size: 13.5px;
  outline: none;
  background: rgba(44, 44, 74, 0.8);
  backdrop-filter: blur(10px);
  color: #eee;
  transition: var(--transition-fast);
}
.newsletter-form input:focus {
  background: rgba(44, 44, 74, 1);
}
.newsletter-form input::placeholder { color: #999; }
.newsletter-form button {
  padding: 12px 24px;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}
.newsletter-form button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.newsletter-form button:hover::before {
  opacity: 1;
}
.newsletter-form button:hover { 
  transform: scale(1.05);
}

/* Social Icons */
.social-icons { display: flex; gap: 12px; }
.social-icons a {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(44, 44, 74, 0.6);
  backdrop-filter: blur(10px);
  color: #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition-smooth);
  border: 1px solid rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}
.social-icons a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.social-icons a:hover { 
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(66, 165, 245, 0.4);
}
.social-icons a:hover::before {
  opacity: 1;
}
.social-icons a i {
  position: relative;
  z-index: 1;
}

/* ===================== BACK TO TOP ===================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 26px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(21, 101, 192, 0.4);
  transition: var(--transition-smooth);
  z-index: 999;
  border: 2px solid rgba(255,255,255,0.2);
}
.back-to-top::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 100%);
  transition: var(--transition-fast);
}
.back-to-top:hover { 
  transform: translateY(-6px) scale(1.1);
  box-shadow: 0 8px 32px rgba(21, 101, 192, 0.6);
}
.back-to-top:active {
  transform: translateY(-3px) scale(1.05);
}
.back-to-top.show { 
  display: flex;
  animation: fadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 992px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .content-grid  { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-col     { grid-column: 1 / -1; border-right: none; padding-right: 0; }
  .about-col::after { display: none; }
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand  { grid-column: 1 / -1; }
  .hero-slider { height: 420px; }
  .slide-content h1 { font-size: 36px; }
}

@media (max-width: 1024px) {
  .navbar {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .navbar.open { max-height: 500px; }
  .navbar ul { flex-direction: column; padding: 12px 20px 20px; gap: 0; }
  .navbar ul li a { 
    display: block; 
    padding: 14px 12px; 
    border-bottom: 1px solid #f0f0f0;
    border-radius: 8px;
    margin-bottom: 4px;
  }
  .hamburger { display: flex; }
  .logo-image { height: 56px; }
  .logo-main { font-size: 34px; }
  .logo-sub { font-size: 11px; letter-spacing: 2px; }
}

@media (max-width: 768px) {
  .hero-slider { height: 380px; }
  .slide-content h1 { font-size: 28px; }
  .slide-content p { font-size: 14.5px; }
  .content-grid  { grid-template-columns: 1fr; gap: 40px; }
  .about-col     { border-right: none; padding-right: 0; }
  .footer-grid   { grid-template-columns: 1fr; gap: 36px; }
  .topbar-inner  { justify-content: space-between; }
  .slider-btn { width: 44px; height: 44px; }
  .slider-btn.prev { left: 16px; }
  .slider-btn.next { right: 16px; }
  .back-to-top {
    bottom: 24px;
    right: 24px;
    width: 46px;
    height: 46px;
  }
}

@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; gap: 16px; }
  .hero-slider   { height: 320px; }
  .slide-content h1 { font-size: 22px; letter-spacing: 1px; }
  .slide-content p   { font-size: 13.5px; margin-bottom: 24px; }
  .btn-primary { padding: 12px 28px; font-size: 14px; }
  .logo {
    gap: 8px;
  }
  .logo-image { height: 50px; }
  .logo-divider { height: 34px; }
  .logo-main { font-size: 28px; }
  .logo-sub { font-size: 10px; letter-spacing: 1.6px; }
  .footer-logo-image { height: 78px; }
  .footer-logo-main { font-size: 26px; }
  .footer-logo-sub { font-size: 10px; letter-spacing: 1.6px; }
  .slider-btn { width: 40px; height: 40px; font-size: 18px; }
  .slider-btn.prev { left: 12px; }
  .slider-btn.next { right: 12px; }
  .slider-dots { bottom: 16px; padding: 6px 12px; }
  .topbar { padding: 6px 0; font-size: 12px; }
  .topbar-links { gap: 12px; }
  .content-section { padding: 48px 0; }
  .footer { padding: 44px 0 32px; }
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 22px;
  }

}
.product-page {
  background: #fff;
  padding: 28px 0 40px;
}

.product-page__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;

  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
}

.product-sidebar .sidebar-block {
  margin-bottom: 18px;
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
}

.sidebar-block__header {
  width: 100%;
  border: 0;
  background: #0a4ea3;
  color: #fff;
  font-weight: 700;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-block__body {
  padding: 10px 12px;
}

.sidebar-link {
  display: block;
  padding: 8px 10px;
  border-radius: 4px;
  color: #b10b0b;
  text-decoration: none;
  font-size: 14px;
}
.sidebar-link.is-active {
  font-weight: 700;
}

.filter-row { padding: 6px 0; border-bottom: 1px solid #eee; }
.filter-row:last-child { border-bottom: 0; }
.filter-row__btn {
  width: 100%;
  background: transparent;
  border: 0;
  padding: 8px 0;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 14px;
}

.sidebar-new__item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 10px;
  padding: 10px 0;
  text-decoration: none;
  color: #111;
  border-bottom: 1px solid #eee;
}
.sidebar-new__item:last-child { border-bottom: 0; }
.sidebar-new__item img {
  width: 54px;
  height: 54px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid #eee;
}
.sidebar-new__name { font-size: 13px; line-height: 1.3; font-weight: 600; }
.sidebar-new__more { font-size: 12px; color: #666; margin-top: 2px; }

.product-main__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}
.product-title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}

.product-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
}
.product-toolbar__select {
  height: 34px;
  padding: 0 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #fff;
}
.product-toolbar__views { display: flex; gap: 8px; }
.view-btn {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid #ddd;
  background: #fff;
  cursor: pointer;
}
.view-btn.is-active {
  color: #0a4ea3;
  border-color: #0a4ea3;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  position: relative;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 14px rgba(0,0,0,.08);
  padding: 14px;
  text-align: center;
}

.product-card__img {
  position: relative;
  display: block;
  height: 240px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #eee;
  background: #fafafa;
}
.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #ff6a00;
  color: #fff;
  font-weight: 800;
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 999px;
  z-index: 2;
}

.product-card__name {
  margin: 12px 0 10px;
  font-size: 14px;
  font-weight: 700;
  min-height: 38px;
}
.product-card__name a { color: #111; text-decoration: none; }
.product-card__btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid #aaa;
  border-radius: 6px;
  text-decoration: none;
  font-size: 13px;
  color: #333;
  background: #fff;
}

.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 22px;
}
.page-btn {
  width: 34px;
  height: 34px;
  border: 1px solid #ddd;
  border-radius: 4px;
  display: grid;
  place-items: center;
  text-decoration: none;
  color: #333;
  background: #fff;
}
.page-btn.is-active {
  background: #b10b0b;
  color: #fff;
  border-color: #b10b0b;
}

/* Responsive */
@media (max-width: 1024px) {
  .product-page__container { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; }
  .product-main__top { flex-direction: column; align-items: flex-start; }
}