/* ============================================================
   Dong Innovation Lab — Main Stylesheet
   Design: Refined Corporate Dark-on-Light with Deep Navy Accents
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* --- CSS Variables --- */
:root {
  --primary: #1a2d6b;
  --primary-dark: #111e4a;
  --primary-light: #2d4a9e;
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --surface: #f8faff;
  --surface-2: #eef2ff;
  --white: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(26,45,107,0.08), 0 1px 2px rgba(26,45,107,0.05);
  --shadow: 0 4px 16px rgba(26,45,107,0.10), 0 2px 6px rgba(26,45,107,0.06);
  --shadow-lg: 0 10px 40px rgba(26,45,107,0.14), 0 4px 16px rgba(26,45,107,0.08);
  --shadow-xl: 0 20px 60px rgba(26,45,107,0.18);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-dark);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.2rem; }

p { color: var(--text-muted); line-height: 1.75; }

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }

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

/* --- Utility Classes --- */
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 64px 0; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-2);
  color: var(--primary);
  border: 1px solid rgba(59,130,246,0.2);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}

.badge-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

/* --- Buttons --- */
.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  border: none;
  padding: 14px 32px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(26,45,107,0.25);
  position: relative;
  overflow: hidden;
}

.btn-primary-custom::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  opacity: 0;
  transition: var(--transition);
}

.btn-primary-custom:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(26,45,107,0.35); color: var(--white); }
.btn-primary-custom:hover::before { opacity: 1; }
.btn-primary-custom span { position: relative; z-index: 1; }
.btn-primary-custom i { position: relative; z-index: 1; }

.btn-outline-custom {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  padding: 12px 30px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-outline-custom:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-white {
  background: var(--white);
  color: var(--primary);
  border: none;
  padding: 14px 32px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,0.2); color: var(--primary-dark); }

/* --- Navbar --- */
.navbar-custom {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar-custom.scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 0;
  box-shadow: 0 2px 20px rgba(26,45,107,0.10);
}

.navbar-brand-custom {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--primary-dark) !important;
  text-decoration: none;
}

.navbar-brand-custom .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.navbar-hero .navbar-brand-custom { color: var(--white) !important; }
.navbar-hero .navbar-brand-custom .logo-word { color: var(--white); }

.nav-link-custom {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--primary-dark) !important;
  padding: 6px 14px !important;
  border-radius: 8px;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

.nav-link-custom:hover, .nav-link-custom.active {
  color: var(--accent) !important;
  background: var(--surface-2);
}

.navbar-hero .nav-link-custom { color: rgba(255,255,255,0.88) !important; }
.navbar-hero .nav-link-custom:hover { color: var(--white) !important; background: rgba(255,255,255,0.12); }
.navbar-hero.scrolled .nav-link-custom { color: var(--primary-dark) !important; }
.navbar-hero.scrolled .nav-link-custom:hover { color: var(--accent) !important; background: var(--surface-2); }
.navbar-hero.scrolled .navbar-brand-custom { color: var(--primary-dark) !important; }

.nav-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white) !important;
  padding: 8px 20px !important;
  border-radius: 100px;
  font-weight: 600;
}

.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow); background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%) !important; }

.navbar-toggler-custom {
  border: none;
  background: none;
  padding: 4px;
  cursor: pointer;
}

.navbar-toggler-custom span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

.navbar-hero .navbar-toggler-custom span { background: white; }
.navbar-hero.scrolled .navbar-toggler-custom span { background: var(--primary); }

/* --- Hero Section --- */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #1e3a8a 100%);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--white);
  clip-path: ellipse(55% 100% at 50% 100%);
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-blob-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-bright);
  top: -100px;
  right: -100px;
  animation: blobFloat 8s ease-in-out infinite;
}

.hero-blob-2 {
  width: 300px;
  height: 300px;
  background: #818cf8;
  bottom: 100px;
  left: -80px;
  animation: blobFloat 10s ease-in-out infinite reverse;
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

.hero-content { position: relative; z-index: 2; padding: 140px 0 100px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #93c5fd 0%, #a5b4fc 50%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-stat { border-left: 2px solid rgba(255,255,255,0.2); padding-left: 16px; }
.hero-stat-num { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; color: white; line-height: 1; }
.hero-stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

.hero-visual {
  position: relative;
  z-index: 2;
}

.hero-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 28px;
  animation: cardFloat 6s ease-in-out infinite;
}

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-card-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--accent) 0%, #818cf8 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.hero-tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tech-chip {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.85);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.15);
}

/* --- Section Header --- */
.section-header { margin-bottom: 60px; }
.section-header.center { text-align: center; }
.section-header.center p { max-width: 580px; margin: 0 auto; }

/* --- Service Cards --- */
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 60px;
  height: 60px;
  background: var(--surface-2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
}

.service-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
.service-card p { font-size: 0.92rem; }

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: 20px;
  transition: var(--transition);
}

.service-link:hover { gap: 10px; color: var(--primary); }

/* --- USP / Why Choose Us --- */
.usp-section {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 80px 64px;
  position: relative;
  overflow: hidden;
}

.usp-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--surface-2) 0%, rgba(59,130,246,0.08) 100%);
  border-radius: 50%;
}

.usp-item { display: flex; gap: 20px; margin-bottom: 32px; }
.usp-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.usp-item h4 { margin-bottom: 6px; font-size: 1rem; }
.usp-item p { font-size: 0.88rem; }

/* --- Tech Stack Section --- */
.tech-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 20px;
}

.tech-logo-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
  cursor: default;
}

.tech-logo-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.tech-logo-item i { font-size: 2rem; color: var(--primary); }
.tech-logo-item span { font-family: var(--font-display); font-size: 0.78rem; font-weight: 600; color: var(--text-muted); text-align: center; }

/* --- Testimonials --- */
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  height: 100%;
  transition: var(--transition);
}

.testimonial-card:hover { box-shadow: var(--shadow-lg); border-color: transparent; }

.testimonial-quote {
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: 16px;
}

.testimonial-card p { font-size: 0.95rem; font-style: italic; margin-bottom: 24px; }

.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-name { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; color: var(--primary-dark); }
.testimonial-role { font-size: 0.8rem; color: var(--text-light); }

.stars { color: #f59e0b; font-size: 0.85rem; margin-bottom: 16px; }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 250px;
  height: 250px;
  background: rgba(96,165,250,0.15);
  border-radius: 50%;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 40px;
  width: 150px;
  height: 150px;
  background: rgba(96,165,250,0.1);
  border-radius: 50%;
}

.cta-banner h2 { color: white; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.7); max-width: 480px; margin: 0 auto 36px; }

/* --- Footer --- */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 0;
}

.footer-logo { margin-bottom: 20px; }
.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.footer p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); }

.footer-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}

.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover { color: var(--accent-bright); padding-left: 4px; }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
}

.footer-contact-item i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }

.social-links { display: flex; gap: 10px; margin-top: 24px; }

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  font-size: 0.9rem;
}

.social-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  margin-top: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.85rem; color: rgba(255,255,255,0.4); margin: 0; }
.footer-bottom a { color: var(--accent-bright); }

/* --- Back to Top --- */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}

#backToTop:hover { transform: translateY(-3px); box-shadow: var(--shadow-xl); }
#backToTop.visible { display: flex; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--white);
  clip-path: ellipse(55% 100% at 50% 100%);
}

.page-hero h1 { color: white; }
.page-hero p { color: rgba(255,255,255,0.7); max-width: 560px; }

.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
  font-family: var(--font-display);
}

.breadcrumb-custom a { color: rgba(255,255,255,0.7); }
.breadcrumb-custom a:hover { color: var(--accent-bright); }
.breadcrumb-custom .sep { opacity: 0.4; }

/* --- About Page --- */
.team-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  text-align: center;
}

.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.team-card-img {
  height: 220px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(255,255,255,0.3);
  position: relative;
  overflow: hidden;
}

.team-card-img .avatar-initials {
  font-size: 2.8rem;
  font-weight: 800;
  color: rgba(255,255,255,0.9);
  font-family: var(--font-display);
  z-index: 1;
}

.team-card-body { padding: 24px; }
.team-card-body h4 { margin-bottom: 4px; }
.team-card-role { color: var(--accent); font-family: var(--font-display); font-weight: 600; font-size: 0.85rem; margin-bottom: 12px; }
.team-card-body p { font-size: 0.88rem; }

.value-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  height: 100%;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.value-card:hover { background: var(--white); box-shadow: var(--shadow); }

.value-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--surface-2);
  line-height: 1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(26,45,107,0.1) 0%, rgba(59,130,246,0.1) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Services Detail --- */
.service-detail-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 40px;
}

.service-detail-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 48px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.service-detail-icon {
  width: 72px;
  height: 72px;
  background: rgba(255,255,255,0.15);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  flex-shrink: 0;
}

.service-detail-header h3 { color: white; font-size: 1.6rem; margin-bottom: 8px; }
.service-detail-header p { color: rgba(255,255,255,0.75); }

.service-detail-body { padding: 48px; }

.feature-list { list-style: none; padding: 0; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.94rem;
  color: var(--text-muted);
}

.feature-list li:last-child { border-bottom: none; }
.feature-list li i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }

.benefit-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  color: var(--primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: 100px;
  margin: 4px;
}

/* --- Portfolio --- */
.portfolio-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }

.filter-btn {
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 8px 20px;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.portfolio-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.portfolio-img {
  height: 220px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,45,107,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-img-overlay { opacity: 1; }

.portfolio-img-icon {
  font-size: 3rem;
  color: rgba(255,255,255,0.3);
}

.portfolio-body { padding: 24px; }
.portfolio-body h4 { margin-bottom: 8px; }
.portfolio-body p { font-size: 0.88rem; margin-bottom: 16px; }

.tech-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tech-tag {
  background: var(--surface-2);
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
}

/* --- Blog --- */
.blog-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.blog-img {
  height: 200px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.3);
  position: relative;
}

.blog-category {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: white;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 100px;
}

.blog-body { padding: 28px; }
.blog-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.blog-meta span { font-size: 0.8rem; color: var(--text-light); display: flex; align-items: center; gap: 5px; }
.blog-body h4 { margin-bottom: 10px; font-size: 1.1rem; }
.blog-body p { font-size: 0.88rem; }

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
}

.sidebar-card h5 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
}

.category-item:last-child { border-bottom: none; }
.category-item:hover { color: var(--accent); }
.category-count {
  background: var(--surface-2);
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
}

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.tag:hover { background: var(--primary); color: white; border-color: var(--primary); }

/* --- Contact Page --- */
.contact-form-wrapper {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow);
}

.form-label-custom {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
  display: block;
}

.form-control-custom {
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  transition: var(--transition);
  outline: none;
}

.form-control-custom:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.1);
}

.form-control-custom::placeholder { color: var(--text-light); }

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  transition: var(--transition);
}

.contact-info-item:hover { box-shadow: var(--shadow); border-color: rgba(59,130,246,0.3); }

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h5 { font-size: 0.9rem; margin-bottom: 4px; }
.contact-info-item p { font-size: 0.88rem; margin: 0; }

.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 380px;
}

.map-wrapper iframe { width: 100%; height: 100%; border: none; }

/* --- FAQ --- */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open { border-color: rgba(59,130,246,0.3); box-shadow: var(--shadow-sm); }

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary-dark);
  gap: 16px;
}

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  background: var(--surface-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
  font-size: 0.8rem;
}

.faq-item.open .faq-icon { background: var(--primary); color: white; transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.faq-answer.show { display: block; }

/* --- Counter --- */
.counter-section { background: var(--surface); }

.counter-card {
  text-align: center;
  padding: 40px 24px;
}

.counter-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.counter-label { font-family: var(--font-display); font-weight: 500; font-size: 0.9rem; color: var(--text-muted); }

/* --- Newsletter --- */
.newsletter-form {
  display: flex;
  gap: 8px;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  background: rgba(255,255,255,0.1);
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  padding: 12px 20px;
  color: white;
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
}

.newsletter-form input::placeholder { color: rgba(255,255,255,0.5); }
.newsletter-form input:focus { border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.15); }

/* --- Scroll Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 991px) {
  .usp-section { padding: 48px 32px; }
  .cta-banner { padding: 48px 32px; }
  .service-detail-header { padding: 32px; flex-direction: column; }
  .contact-form-wrapper { padding: 32px 24px; }
  .hero-stats { gap: 20px; }
}

@media (max-width: 767px) {
  .section-pad { padding: 64px 0; }
  .hero-content { padding: 120px 0 80px; }
  .usp-section { padding: 40px 24px; }
  .cta-banner { padding: 40px 24px; }
  .hero-stats { gap: 16px; }
  .hero-stat-num { font-size: 1.4rem; }
  .newsletter-form { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .service-detail-body { padding: 28px 24px; }
}

@media (max-width: 575px) {
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 0.95rem; }
  .page-hero { padding: 130px 0 60px; }
}

/* --- Coming soon (doi-lab) — logo + intro + headline --- */
.coming-soon-page { overflow-x: hidden; }

.coming-soon-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.coming-soon-hero::after {
  display: none;
}

.coming-soon-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 20px;
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  box-sizing: border-box;
}

.coming-soon-logo {
  width: 100%;
  max-width: min(380px, 92vw);
  height: auto;
  margin: 0 auto 28px;
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.coming-soon-intro {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  margin: 0 0 28px;
  max-width: 42em;
}

.coming-soon-headline {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 7vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0;
  background: linear-gradient(135deg, #bfdbfe 0%, #e0e7ff 40%, #93c5fd 70%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 24px rgba(147, 197, 253, 0.35));
}