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

:root {
  --primary: #0d47a1;
  --primary-light: #1565c0;
  --primary-dark: #0a3270;
  --accent: #00bcd4;
  --accent-dark: #0097a7;
  --dark: #1a1a2e;
  --dark-light: #16213e;
  --gray-100: #f5f7fa;
  --gray-200: #e8ecf1;
  --gray-300: #cfd8e3;
  --gray-500: #7b8a9e;
  --gray-700: #4a5568;
  --gray-900: #1a202c;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.15);
  --radius: 10px;
  --transition: .3s ease;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5 {
  color: var(--dark);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.3rem; }

.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: .95rem; cursor: pointer; border: none;
  transition: var(--transition); letter-spacing: .3px;
}
.btn-primary {
  background: var(--gradient); color: var(--white);
  box-shadow: 0 4px 15px rgba(13,71,161,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(13,71,161,.45);
}
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-secondary {
  background: var(--white); color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,.97); backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm); padding: 12px 0;
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 1.5rem; font-weight: 800; color: var(--white);
  display: flex; align-items: center; gap: 10px;
}
.logo-img {
  width: 38px; height: 38px; object-fit: contain;
  border-radius: 10px;
}
.navbar.scrolled .nav-logo { color: var(--primary); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  color: rgba(255,255,255,.85); font-weight: 500; font-size: .92rem;
  transition: var(--transition); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.navbar.scrolled .nav-links a { color: var(--gray-700); }
.navbar.scrolled .nav-links a:hover,
.navbar.scrolled .nav-links a.active { color: var(--primary); }

.nav-cta {
  padding: 10px 24px; border-radius: 50px; font-weight: 600;
  font-size: .88rem; background: var(--accent); color: var(--white);
  transition: var(--transition);
}
.nav-cta:hover { background: var(--accent-dark); transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 5px; background: none; border: none;
}
.hamburger span {
  width: 26px; height: 2.5px; background: var(--white);
  border-radius: 2px; transition: var(--transition);
}
.navbar.scrolled .hamburger span { background: var(--dark); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(0,188,212,.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(13,71,161,.2) 0%, transparent 50%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .06;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 700px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,188,212,.15); color: var(--accent);
  padding: 8px 18px; border-radius: 50px; font-size: .82rem;
  font-weight: 600; margin-bottom: 24px; letter-spacing: .5px;
  text-transform: uppercase;
}
.hero-badge .dot {
  width: 8px; height: 8px; background: var(--accent);
  border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero h1 span { color: var(--accent); }
.hero p {
  color: rgba(255,255,255,.75); font-size: 1.15rem;
  margin-bottom: 36px; max-width: 560px;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 48px; margin-top: 60px;
  padding-top: 40px; border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat-number {
  font-size: 2rem; font-weight: 800; color: var(--accent);
}
.hero-stat-label {
  font-size: .85rem; color: rgba(255,255,255,.6); margin-top: 4px;
}

/* ===== SECTION COMMON ===== */
.section { padding: 100px 0; }
.section-dark { background: var(--gray-100); }
.section-header {
  text-align: center; max-width: 650px; margin: 0 auto 60px;
}
.section-label {
  display: inline-block; color: var(--accent); font-weight: 700;
  font-size: .82rem; text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-header p {
  margin-top: 16px; font-size: 1.05rem; color: var(--gray-500);
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}
.service-card {
  background: var(--white); border-radius: var(--radius);
  padding: 36px 32px; transition: var(--transition);
  border: 1px solid var(--gray-200); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 100%; height: 3px; background: var(--gradient);
  transform: scaleX(0); transition: var(--transition);
  transform-origin: left;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 56px; height: 56px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(13,71,161,.08), rgba(0,188,212,.08));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
  color: var(--primary);
}
.service-card:hover .service-icon {
  background: linear-gradient(135deg, rgba(13,71,161,.15), rgba(0,188,212,.15));
}
.service-card h3 { margin-bottom: 12px; }
.service-card p { font-size: .93rem; color: var(--gray-500); margin-bottom: 20px; }
.service-link {
  color: var(--primary); font-weight: 600; font-size: .9rem;
  display: inline-flex; align-items: center; gap: 6px;
  transition: var(--transition);
}
.service-link:hover { gap: 10px; color: var(--accent); }

/* ===== INDUSTRIES ===== */
.industries-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.industry-card {
  text-align: center; padding: 40px 24px; background: var(--white);
  border-radius: var(--radius); border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.industry-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.industry-icon {
  font-size: 2.5rem; margin-bottom: 16px;
}
.industry-card h3 { font-size: 1.05rem; }

/* ===== WHY CHOOSE ===== */
.why-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}
.why-card {
  text-align: center; padding: 40px 28px;
}
.why-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--gradient); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; margin: 0 auto 20px;
}
.why-card h3 { margin-bottom: 10px; }
.why-card p { font-size: .92rem; color: var(--gray-500); }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
  padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0,188,212,.12) 0%, transparent 60%);
}
.cta-banner .container { position: relative; z-index: 2; }
.cta-banner h2 { color: var(--white); margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,.7); margin-bottom: 32px; font-size: 1.1rem; }

/* ===== ABOUT PAGE ===== */
.page-hero {
  padding: 160px 0 80px; text-align: center;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(0,188,212,.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(13,71,161,.15) 0%, transparent 50%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: var(--white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,.7); font-size: 1.15rem; max-width: 600px; margin: 0 auto; }

.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-intro-text h2 { margin-bottom: 20px; }
.about-intro-text p { margin-bottom: 16px; }
.about-visual {
  background: linear-gradient(135deg, rgba(13,71,161,.05), rgba(0,188,212,.05));
  border-radius: var(--radius); padding: 48px; text-align: center;
  border: 1px solid var(--gray-200);
}
.about-visual .big-icon { font-size: 5rem; margin-bottom: 20px; line-height: 1; }

.mission-vision {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.mv-card {
  background: var(--white); padding: 40px; border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}
.mv-card h3 { color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }

.approach-steps {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
  position: relative;
}
.approach-steps::before {
  content: ''; position: absolute; top: 36px; left: 10%; right: 10%;
  height: 2px; background: var(--gray-200);
}
.step {
  text-align: center; position: relative; z-index: 2;
}
.step-number {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--gradient); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.3rem; margin: 0 auto 16px;
  box-shadow: 0 4px 15px rgba(13,71,161,.3);
}
.step h3 { font-size: 1rem; }
.step p { font-size: .85rem; color: var(--gray-500); margin-top: 6px; }

/* ===== SERVICES PAGE ===== */
.service-detail {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; padding: 60px 0;
  border-bottom: 1px solid var(--gray-200);
}
.service-detail:last-child { border-bottom: none; }
.service-detail:nth-child(even) .service-detail-content { order: 2; }
.service-detail:nth-child(even) .service-detail-visual { order: 1; }
.service-detail-content h3 {
  font-size: 1.5rem; margin-bottom: 16px; color: var(--primary);
}
.service-detail-content p { margin-bottom: 20px; }
.service-detail-content ul { display: flex; flex-direction: column; gap: 12px; }
.service-detail-content ul li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .95rem;
}
.service-detail-content ul li::before {
  content: '✓'; color: var(--accent); font-weight: 700;
  min-width: 20px; text-align: center;
}
.service-detail-visual {
  background: linear-gradient(135deg, rgba(13,71,161,.04), rgba(0,188,212,.04));
  border-radius: var(--radius); padding: 48px; text-align: center;
  border: 1px solid var(--gray-200); min-height: 300px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 20px; font-size: 4rem;
}
.visual-label {
  font-size: .85rem; font-weight: 600; color: var(--primary);
  text-transform: uppercase; letter-spacing: 1.5px;
}

/* ===== TECH STACK ===== */
.tech-categories {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.tech-category {
  background: var(--white); padding: 36px; border-radius: var(--radius);
  border: 1px solid var(--gray-200); transition: var(--transition);
}
.tech-category:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.tech-category h3 {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px; color: var(--primary);
}
.tech-cat-icon {
  flex-shrink: 0; width: 28px; height: 28px;
  padding: 4px; background: linear-gradient(135deg, rgba(13,71,161,.08), rgba(0,188,212,.08));
  border-radius: 8px;
}
.tech-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-tag {
  padding: 8px 18px; background: var(--gray-100);
  border-radius: 50px; font-size: .88rem; font-weight: 500;
  color: var(--gray-700); transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.tech-tag:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-weight: 600; font-size: .88rem; color: var(--dark);
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 18px; border: 1px solid var(--gray-300);
  border-radius: var(--radius); font-size: .95rem;
  font-family: inherit; transition: var(--transition);
  background: var(--white); color: var(--gray-900);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13,71,161,.1);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.contact-info { display: flex; flex-direction: column; gap: 32px; }
.contact-info-card {
  padding: 28px; background: var(--gray-100);
  border-radius: var(--radius); display: flex; gap: 16px;
}
.contact-info-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--gradient); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-info-card h4 { margin-bottom: 4px; font-size: 1rem; }
.contact-info-card p { font-size: .92rem; color: var(--gray-500); }

/* ===== FOOTER ===== */
.footer {
  background: var(--dark); color: rgba(255,255,255,.7); padding: 72px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand p { margin-top: 16px; font-size: .92rem; line-height: 1.7; }
.footer-logo {
  font-size: 1.3rem; font-weight: 800; color: var(--white);
  display: flex; align-items: center; gap: 10px;
}
.footer h4 {
  color: var(--white); font-size: .95rem; margin-bottom: 20px;
  text-transform: uppercase; letter-spacing: 1px;
}
.footer ul { display: flex; flex-direction: column; gap: 12px; }
.footer ul a {
  font-size: .9rem; transition: var(--transition);
  color: rgba(255,255,255,.6);
}
.footer ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-social {
  display: flex; gap: 12px; margin-top: 8px;
}
.footer-social a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.08); display: flex;
  align-items: center; justify-content: center;
  transition: var(--transition); font-size: .95rem;
}
.footer-social a:hover { background: var(--accent); color: var(--white); }
.footer-bottom {
  padding: 24px 0; text-align: center; font-size: .85rem;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .about-intro,
  .mission-vision,
  .service-detail,
  .contact-grid { grid-template-columns: 1fr; }

  .service-detail:nth-child(even) .service-detail-content,
  .service-detail:nth-child(even) .service-detail-visual { order: unset; }

  .approach-steps { grid-template-columns: repeat(3, 1fr); }
  .approach-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { 
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--dark); flex-direction: column;
    justify-content: center; align-items: center; gap: 28px;
  }
  .nav-links.active { display: flex; }
  .nav-links a { color: var(--white) !important; font-size: 1.2rem; }
  .hamburger { display: flex; }

  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
}

@media (max-width: 480px) {
  .industries-grid { grid-template-columns: 1fr; }
  .approach-steps { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.stagger-1 { transition-delay: .1s; }
.stagger-2 { transition-delay: .2s; }
.stagger-3 { transition-delay: .3s; }
.stagger-4 { transition-delay: .4s; }
.stagger-5 { transition-delay: .5s; }