/* ============================================
   SECTIONS
   ============================================ */
.section { padding: var(--space-24) var(--space-8); }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-label { display: inline-flex; align-items: center; gap: var(--space-2); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-600); margin-bottom: var(--space-4); }
.section-label::before { content: ''; display: block; width: 20px; height: 2px; background: var(--blue-600); border-radius: 2px; }
.section-heading { font-size: clamp(1.875rem,4vw,2.75rem); font-weight: 800; letter-spacing: -0.03em; color: var(--gray-900); line-height: 1.15; }
.section-heading .accent { color: var(--blue-700); }
.section-sub { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.7; max-width: 56ch; margin-top: var(--space-4); }
.section-header { margin-bottom: var(--space-16); }
.section-header.centered { text-align: center; }
.section-header.centered .section-label { margin: 0 auto var(--space-4); }
.section-header.centered .section-sub { margin-left: auto; margin-right: auto; }

/* Stats bar */
.stats-bar { background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%); padding: var(--space-12) var(--space-8); }
.stats-bar-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-8); }
.stat-item { text-align: center; color: var(--white); }
.stat-number { font-size: clamp(2rem,4vw,2.75rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; display: block; }
.stat-desc { font-size: 0.875rem; color: rgba(255,255,255,0.65); margin-top: var(--space-2); font-weight: 500; }

/* Services */
.services { background: var(--white); }
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-5); }
.service-card {
  background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-8); transition: border-color var(--duration-normal), box-shadow var(--duration-normal), transform var(--duration-normal);
  position: relative; overflow: hidden;
}
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue-600), var(--steel-light)); opacity: 0; transition: opacity var(--duration-normal); }
.service-card:hover { border-color: var(--blue-200); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-icon { width: 48px; height: 48px; background: var(--blue-50); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--blue-600); margin-bottom: var(--space-5); transition: background var(--duration-normal); }
.service-card:hover .service-icon { background: var(--blue-100); }
.service-icon svg { width: 24px; height: 24px; }
.service-name { font-size: 1.0625rem; font-weight: 700; color: var(--gray-900); margin-bottom: var(--space-3); }
.service-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; }
.service-features { margin-top: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); }
.service-feature { display: flex; align-items: center; gap: var(--space-2); font-size: 0.8125rem; color: var(--gray-600); }
.service-feature::before { content: ''; width: 6px; height: 6px; background: var(--blue-400); border-radius: 50%; flex-shrink: 0; }
.service-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.875rem; font-weight: 600; color: var(--blue-600); margin-top: var(--space-6); transition: gap var(--duration-fast); }
.service-link:hover { gap: 10px; }

/* About */
.about { background: var(--gray-50); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-20); align-items: center; }
.about-visual { position: relative; }
.about-img-wrap { border-radius: var(--radius-xl); overflow: hidden; background: linear-gradient(135deg, var(--blue-700) 0%, var(--steel-light) 100%); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; }
.about-badge-float { position: absolute; bottom: -16px; right: -16px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-4) var(--space-5); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: var(--space-3); }
.about-badge-icon { width: 44px; height: 44px; background: var(--blue-50); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--blue-600); }
.about-badge-stat { font-size: 1.5rem; font-weight: 800; color: var(--gray-900); line-height: 1; }
.about-badge-text { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.about-copy { display: flex; flex-direction: column; gap: var(--space-6); }
.about-features { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-2); }
.about-feature { display: flex; align-items: flex-start; gap: var(--space-4); }
.about-feature-icon { width: 40px; height: 40px; background: var(--blue-50); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--blue-600); flex-shrink: 0; }
.about-feature-icon svg { width: 20px; height: 20px; }
.about-feature-title { font-size: 0.9375rem; font-weight: 700; color: var(--gray-900); margin-bottom: var(--space-1); }
.about-feature-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* Tech stack */
.tech { background: var(--white); }
.tech-tabs { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-10); }
.tech-tab { padding: 0.5rem 1rem; font-size: 0.875rem; font-weight: 600; color: var(--gray-600); border-radius: var(--radius-sm); border: 1.5px solid transparent; cursor: pointer; transition: all var(--duration-fast); }
.tech-tab:hover { color: var(--primary); background: var(--blue-50); }
.tech-tab.active { color: var(--blue-700); background: var(--white); border-color: var(--blue-200); box-shadow: var(--shadow-sm); }
.tech-panel { display: none; grid-template-columns: repeat(5,1fr); gap: var(--space-4); }
.tech-panel.active { display: grid; }
.tech-chip { background: var(--gray-50); border: 1.5px solid var(--border); border-radius: var(--radius-md); padding: var(--space-5) var(--space-4); display: flex; flex-direction: column; align-items: center; gap: var(--space-3); transition: border-color var(--duration-fast), box-shadow var(--duration-fast), transform var(--duration-fast); }
.tech-chip:hover { border-color: var(--blue-200); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.tech-chip-icon { font-size: 2rem; }
.tech-chip-name { font-size: 0.8125rem; font-weight: 600; color: var(--gray-700); text-align: center; }
.tech-chip-badge { font-size: 0.6rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; padding: 2px 7px; border-radius: var(--radius-full); background: var(--blue-50); color: var(--blue-600); margin-top: 2px; }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 60%, var(--steel-light) 100%); padding: var(--space-24) var(--space-8); text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -50%; left: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 65%); pointer-events: none; }
.cta-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.cta-label { display: inline-block; padding: 6px 14px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-full); font-size: 0.8125rem; font-weight: 600; color: rgba(255,255,255,0.85); margin-bottom: var(--space-6); letter-spacing: 0.04em; }
.cta-heading { font-size: clamp(2rem,5vw,3rem); font-weight: 800; color: var(--white); letter-spacing: -0.03em; line-height: 1.1; margin-bottom: var(--space-5); }
.cta-sub { font-size: 1.0625rem; color: rgba(255,255,255,0.72); line-height: 1.65; margin-bottom: var(--space-10); }
.cta-buttons { display: flex; justify-content: center; gap: var(--space-4); flex-wrap: wrap; }
.btn-white { display: inline-flex; align-items: center; gap: var(--space-2); padding: 0.875rem 1.75rem; background: var(--white); color: var(--blue-800); font-size: 0.9375rem; font-weight: 700; border-radius: var(--radius-sm); transition: transform var(--duration-fast), box-shadow var(--duration-fast); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,0.2); }
.btn-outline-white { display: inline-flex; align-items: center; gap: var(--space-2); padding: 0.875rem 1.75rem; color: var(--white); font-size: 0.9375rem; font-weight: 700; border-radius: var(--radius-sm); border: 2px solid rgba(255,255,255,0.35); transition: border-color var(--duration-fast), background var(--duration-fast); }
.btn-outline-white:hover { border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.1); }

/* Clients marquee */
.clients { padding: var(--space-10) var(--space-8); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--gray-50); }
.clients-label { text-align: center; font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; margin-bottom: var(--space-6); letter-spacing: 0.04em; }
.clients-track-wrap { overflow: hidden; mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent); }
.clients-track { display: flex; gap: var(--space-16); animation: marquee 24s linear infinite; width: max-content; }
.clients-track:hover { animation-play-state: paused; }
.client-chip { display: flex; align-items: center; gap: var(--space-2); font-size: 0.9375rem; font-weight: 700; color: var(--gray-400); white-space: nowrap; transition: color var(--duration-fast); }
.client-chip:hover { color: var(--gray-600); }
.client-chip-dot { width: 8px; height: 8px; background: var(--gray-300); border-radius: 50%; }
@keyframes marquee { from{transform:translateX(0)} to{transform:translateX(-50%)} }

@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .stats-bar-inner { grid-template-columns: repeat(2,1fr); gap: var(--space-10); }
  .about-grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .tech-panel { grid-template-columns: repeat(4,1fr); }
}
@media (max-width: 640px) {
  .section { padding: var(--space-16) var(--space-5); }
  .services-grid { grid-template-columns: 1fr; }
  .stats-bar-inner { grid-template-columns: repeat(2,1fr); }
  .tech-panel { grid-template-columns: repeat(3,1fr); }
  .cta-buttons { flex-direction: column; align-items: center; }
}