/* Global Reset & Base Styles */
* { box-sizing: border-box; }
body { margin: 0; padding: 0; font-family: 'Montserrat', sans-serif; color: #333333; background-color: #ffffff; line-height: 1.6; }

/* Hero Section */
.tds-hero { background-color: #1a1a1a; color: #ffffff; padding: 100px 20px; text-align: center; border-bottom: 4px solid #D71920; }
.hero-content h1 { font-size: 46px; font-weight: 700; margin: 0 0 15px 0; letter-spacing: -0.5px; }
.hero-content p { font-size: 20px; max-width: 650px; margin: 0 auto 30px auto; color: #cccccc; }
.hero-btn { display: inline-block; background-color: #D71920; color: #fff; padding: 12px 30px; border-radius: 5px; text-decoration: none; font-weight: 600; font-size: 16px; transition: background 0.3s; }
.hero-btn:hover { background-color: #B32025; }

/* Expertise Section */
.tds-expertise-section { max-width: 1200px; margin: 60px auto 0 auto; padding: 0 20px; }
.tds-profile { background: #ffffff; padding: 40px; border-radius: 8px; border: 1px solid #eeeeee; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.tds-profile h2 { font-size: 28px; color: #333333; margin-top: 0; margin-bottom: 15px; }
.tds-profile p { font-size: 16px; color: #555555; margin-bottom: 25px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-tags span { background-color: #f0f0f0; color: #333333; padding: 8px 16px; border-radius: 4px; font-size: 14px; font-weight: 600; border-left: 3px solid #D71920; }

/* Core Services Grid */
.tds-comprehensive-services { max-width: 1200px; margin: 60px auto; padding: 0 20px; }
.services-header { text-align: center; margin-bottom: 40px; }
.services-header h2 { font-size: 32px; margin: 0 0 10px 0; }
.services-header p { color: #666; font-size: 18px; margin: 0; }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.service-card { background: #f9f9f9; padding: 30px; border-radius: 8px; border-top: 4px solid #333; transition: transform 0.2s, box-shadow 0.2s; }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); border-top-color: #D71920; }
.service-card i { font-size: 32px; color: #D71920; margin-bottom: 20px; }
.service-card h3 { font-size: 20px; margin: 0 0 15px 0; }
.service-card p { font-size: 15px; color: #555; margin: 0; }

/* Niche Operations */
.tds-services-section { display: flex; flex-wrap: wrap; gap: 40px; max-width: 1200px; margin: 0 auto 60px auto; padding: 0 20px; }
.tds-niche-box.full-width { flex: 1 1 100%; background: #ffffff; padding: 40px; border-radius: 8px; border: 1px solid #eee; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.tds-niche-box h3 { font-size: 26px; margin-top: 0; margin-bottom: 10px; }
.niche-intro { color: #666; margin-bottom: 25px; font-size: 16px; }

.grid-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 25px; list-style: none; padding: 0; margin: 0; }
.tds-niche-item { background: #f9f9f9; padding: 20px; border-radius: 6px; border-left: 3px solid #D71920; }
.tds-niche-label { display: block; font-weight: 700; font-size: 16px; margin-bottom: 5px; }
.tds-niche-desc { display: block; font-size: 14px; color: #666; }

/* Corporate CTA */
.tds-cta { background-color: #D71920; color: #fff; text-align: center; padding: 60px 20px; }
.tds-cta h2 { font-size: 32px; margin: 0 0 15px 0; }
.tds-cta p { font-size: 18px; margin: 0 0 25px 0; opacity: 0.9; }
.corporate-email { display: inline-block; background: #fff; color: #D71920; padding: 15px 35px; border-radius: 5px; font-size: 20px; font-weight: 700; text-decoration: none; box-shadow: 0 4px 15px rgba(0,0,0,0.2); transition: transform 0.2s; }
.corporate-email:hover { transform: translateY(-3px); }
.corporate-email i { margin-right: 10px; }

/* Footer Section */
.tds-footer { background-color: #f9f9f9; border-top: 1px solid #e0e0e0; padding: 60px 20px 0; }
.footer-container { max-width: 1200px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 40px; padding-bottom: 40px; }
.footer-column { flex: 1 1 250px; }
.footer-column h3, .footer-column h4 { color: #333333; margin-top: 0; margin-bottom: 20px; font-weight: 700; }
.branding p { font-size: 14px; color: #666; margin-bottom: 20px; }
.social-icons a { color: #333; font-size: 20px; margin-right: 15px; text-decoration: none; transition: color 0.3s; }
.social-icons a:hover { color: #D71920; }
.links ul, .contact ul { list-style: none; padding: 0; margin: 0; }
.links li, .contact li { margin-bottom: 12px; }
.links a, .contact a, .contact li { text-decoration: none; color: #666; font-size: 14px; transition: color 0.3s; display: flex; align-items: center; gap: 10px; }
.links a:hover, .contact a:hover { color: #D71920; }
.contact i { color: #D71920; width: 20px; text-align: center; }

.privacy-footer { background-color: #1a1a1a; color: #999; text-align: center; padding: 30px 20px; font-size: 12px; margin: 0 -20px; }
.privacy-header { display: block; color: #fff; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }
.privacy-footer p { max-width: 800px; margin: 0 auto 15px auto; }
.credits { color: #fff; font-weight: 700; letter-spacing: 2px; font-size: 11px; }

@media (max-width: 768px) {
  .hero-content h1 { font-size: 36px; }
  .tds-cta h2 { font-size: 26px; }
  .corporate-email { font-size: 16px; padding: 12px 20px; }
}