/* ============================================
   Global SAM Solutions — Main Stylesheet
   Clean, Professional & Aesthetic Theme
   ============================================ */

/* 1. Custom Properties (Design Tokens) */
:root {
  --primary: #0f172a;        /* Deep Navy */
  --primary-light: #1e293b;  /* Slate Navy */
  --accent: #2563eb;         /* Professional Blue */
  --accent-hover: #1d4ed8;   /* Darker Blue */
  --accent-warm: #f59e0b;    /* Warm Amber/Gold for subtle highlights if needed */
  
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --transition: 0.3s ease;
  --font-heading: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
}

/* 2. CSS Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
body {
  font-family: var(--font-body);
  color: var(--gray-700);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--gray-900);
  font-weight: 700;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); line-height: 1.2; }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); line-height: 1.25; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.section-label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.75rem;
  display: block;
}
.section-title { margin-bottom: 1rem; }
.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 650px;
  margin-inline: auto;
}
.section-header { text-align: center; margin-bottom: 3.5rem; }
.text-center { text-align: center; }

/* 4. Layout & Grid System */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}
.section { padding-block: 5rem; }
.section-alt { background: var(--gray-50); border-block: 1px solid var(--gray-100); }

.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Common Structural Layouts used across inner pages */
.about-content, .contact-grid, .service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .about-content, .contact-grid, .service-detail { 
    grid-template-columns: 1fr; 
  }
}

/* 5. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--primary);
  color: var(--white);
}
.btn-secondary:hover {
  background: var(--primary-light);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}
.btn-outline:hover {
  border-color: var(--gray-900);
  color: var(--gray-900);
  background: var(--gray-50);
}

.btn-white {
  background: var(--white);
  color: var(--gray-900);
  box-shadow: var(--shadow-sm);
}
.btn-white:hover { background: var(--gray-50); }

.btn-lg { padding: 1rem 2.25rem; font-size: 1.0625rem; }

/* 6. Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--gray-900);
}
.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: transform var(--transition);
}
.logo:hover .logo-img {
  transform: scale(1.03);
}
.logo-global { color: var(--primary); }
.logo-sam { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-link {
  padding: 0.5rem 0.875rem;
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: var(--gray-50);
}
.nav-actions { display: flex; align-items: center; gap: 1rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 2rem;
  height: 2rem;
  position: relative;
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}
.hamburger, .hamburger::before, .hamburger::after {
  display: block; width: 100%; height: 2px;
  background: var(--gray-700); border-radius: 2px;
  transition: 0.3s ease; position: absolute;
}
.hamburger::before { content: ''; top: -7px; }
.hamburger::after { content: ''; top: 7px; }

/* 7. Hero Sections */
.hero {
  padding-top: 8rem;
  padding-bottom: 5rem;
  background: var(--gray-50);
  color: var(--gray-900);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--gray-200);
}
.hero-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero h1 { color: var(--gray-900); margin-bottom: 1.25rem; }
.hero-highlight { color: var(--accent); }
.hero p {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
  max-width: 500px;
}
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-visual-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--gray-200);
}
.stat-number { font-family: var(--font-heading); font-size: 1.75rem; font-weight: 700; color: var(--primary); display: block;}
.stat-label { font-size: 0.875rem; color: var(--gray-500); }

/* Inner Page Heros */
.page-hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  text-align: center;
}
.breadcrumb {
  display: flex; justify-content: center; gap: 0.5rem;
  margin-bottom: 1rem; font-size: 0.875rem; color: var(--gray-500);
}
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb ol { display: flex; gap: 0.5rem; list-style: none; align-items: center; }
.breadcrumb li:not(:last-child)::after { content: '›'; margin-left: 0.5rem; color: var(--gray-400); }

/* 8. Trust Bar */
.trust-bar { padding-block: 3rem; background: var(--white); border-bottom: 1px solid var(--gray-100); }
.trust-bar-inner { display: flex; align-items: center; justify-content: space-around; flex-wrap: wrap; gap: 2rem; }
.trust-item { color: var(--gray-500); font-weight: 600; display: flex; align-items: center; gap: 0.5rem;}

/* 9. Cards (Services, Values, Features) */
.card, .service-card, .feature-card, .value-card, .contact-info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2.5rem;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  text-align: left;
}
.card:hover, .service-card:hover, .feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-300);
}
.card.text-center, .feature-card.text-center, .value-card, .contact-info-card { text-align: center; }

.icon-large, .service-card-icon, .feature-icon, .icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.feature-icon, .value-card .icon, .contact-info-card .contact-info-card-icon { margin: 0 auto 1.25rem; }

.service-card h3, .card h3 { margin-bottom: 0.75rem; }
.service-card p, .card p { color: var(--gray-600); font-size: 0.9375rem; margin-bottom: 1.25rem; }
.service-card-link { color: var(--accent); font-weight: 600; text-decoration: none; font-size: 0.9375rem; }
.service-card-link:hover { text-decoration: underline; }

/* 10. Process Steps */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; }
.process-step { text-align: center; padding: 2rem 1rem; }
.process-number {
  width: 3.5rem; height: 3.5rem; border-radius: 50%;
  background: var(--gray-100); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem;
  margin: 0 auto 1.25rem; position: relative; z-index: 2;
}
.process-step h3 { margin-bottom: 0.75rem; }
.process-step p { color: var(--gray-600); font-size: 0.875rem; }

/* 11. Imagery & Media Components */
.about-image-placeholder, .map-container, .portfolio-card-image, .case-card-image, .blog-card-image {
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}
.map-container { width: 100%; height: 400px; }
.map-container iframe { width: 100%; height: 100%; border: none; }

.team-photo {
  width: 150px; height: 150px; border-radius: 50%;
  background: var(--gray-200); margin: 0 auto 1.25rem; object-fit: cover;
}

/* 12. Case Studies & Blog Cards */
.case-card, .blog-card, .portfolio-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: var(--transition);
}
.case-card:hover, .blog-card:hover, .portfolio-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.case-card-image, .blog-card-image, .portfolio-card-image { height: 220px; border: none; border-radius: 0; }
.case-card-image img, .blog-card-image img, .portfolio-card-image img { width: 100%; height: 100%; object-fit: cover; }
.case-card-body, .blog-card-body { padding: 1.5rem; }
.case-card-badge, .blog-card-tag {
  display: inline-block; background: var(--gray-100); color: var(--gray-700);
  padding: 0.25rem 0.75rem; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
  margin-bottom: 0.75rem;
}
.case-card-metrics { display: flex; gap: 1.5rem; margin-top: 1rem; border-top: 1px solid var(--gray-100); padding-top: 1rem;}
.case-metric-value { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.case-metric-label { font-size: 0.75rem; color: var(--gray-500); }

.portfolio-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, transparent 60%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.5rem; opacity: 0; transition: opacity 0.3s;
}
.portfolio-card:hover .portfolio-card-overlay { opacity: 1; }
.portfolio-card-overlay h3 { color: var(--white); margin-bottom: 0.25rem; }
.portfolio-card-overlay p { color: rgba(255,255,255,0.8); font-size: 0.875rem; }

/* 13. Testimonials Carousel */
.testimonials { background: var(--primary); color: var(--white); padding-block: 5rem; }
.testimonials .section-title, .testimonials .section-subtitle, .testimonials .section-label { color: var(--white); }
.testimonials .section-label { color: rgba(255,255,255,0.7); }
.carousel { overflow: hidden; max-width: 800px; margin-inline: auto; position: relative; }
.carousel-track { display: flex; transition: transform 0.5s ease; }
.carousel-slide { min-width: 100%; padding: 0 1rem; }
.testimonial-card {
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg); padding: 2.5rem; text-align: center;
}
.testimonial-stars { color: var(--accent-warm); margin-bottom: 1.25rem; display: flex; justify-content: center; gap: 0.25rem;}
.testimonial-text { font-size: 1.125rem; color: rgba(255,255,255,0.9); margin-bottom: 1.5rem; font-style: italic; }
.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 1rem; }
.testimonial-avatar { width: 3rem; height: 3rem; border-radius: 50%; background: rgba(255, 255, 255, 0.2); }
.testimonial-name { font-weight: 600; color: var(--white); display: block;}
.testimonial-role { font-size: 0.8125rem; color: rgba(255,255,255,0.6); }

/* 14. Pricing */
.pricing-cards { align-items: start; }
.pricing-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 2.5rem;
  border: 1px solid var(--gray-200); transition: var(--transition);
}
.pricing-card.featured { border-color: var(--accent); position: relative; box-shadow: var(--shadow-lg); }
.pricing-price { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 800; color: var(--primary); margin-bottom: 0.25rem; }
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--gray-500); }
.pricing-desc { font-size: 0.9375rem; color: var(--gray-500); margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--gray-200); }
.pricing-features { list-style: none; margin-bottom: 2rem; display: flex; flex-direction: column; gap: 0.75rem; }
.pricing-features li { display: flex; align-items: center; gap: 0.625rem; font-size: 0.9375rem; color: var(--gray-600); }
.pricing-features li i { color: var(--accent); width: 1rem; height: 1rem; }

/* 15. FAQ Accordion */
.accordion { max-width: 800px; margin-inline: auto; display: flex; flex-direction: column; gap: 0.75rem; }
.accordion-item { border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; background: var(--white);}
.accordion-trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem; background: transparent; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 1rem; font-weight: 600; color: var(--gray-900); text-align: left;
}
.accordion-icon { transition: transform 0.3s ease; color: var(--gray-400); }
.accordion-item.active .accordion-icon { transform: rotate(180deg); color: var(--accent); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.accordion-content-inner { padding: 0 1.5rem 1.25rem; color: var(--gray-600); }

/* 16. Forms */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--gray-700); font-size: 0.9375rem; }
.form-input {
  width: 100%; padding: 0.875rem 1rem; border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.9375rem;
  transition: var(--transition); outline: none; background: var(--white);
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
textarea.form-input { resize: vertical; min-height: 150px; }

/* 17. CTA & Footer */
.cta-banner {
  background: var(--gray-900);
  padding-block: 5rem; text-align: center; color: var(--white);
}
.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,0.85); font-size: 1.125rem; max-width: 600px; margin-inline: auto; margin-bottom: 2rem; }

.footer { background: var(--gray-900); color: var(--gray-400); padding-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 3rem; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.footer-logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  display: block;
  background: #ffffff;
  padding: 4px 8px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}
.footer-logo:hover .footer-logo-img {
  transform: scale(1.03);
}
.social-links { display: flex; gap: 0.75rem; }
.social-links a { width: 2.25rem; height: 2.25rem; border-radius: 50%; border: 1px solid var(--gray-700); display: flex; align-items: center; justify-content: center; color: var(--gray-400); transition: var(--transition); }
.social-links a:hover { border-color: var(--white); color: var(--white); }
.footer-links h4, .footer-newsletter h4 { color: var(--white); font-size: 1rem; margin-bottom: 1.25rem; font-family: var(--font-heading); }
.footer-links a { display: block; color: var(--gray-400); text-decoration: none; font-size: 0.9375rem; padding-block: 0.375rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }

.newsletter-form { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.newsletter-form input { flex: 1; padding: 0.75rem 1rem; background: var(--gray-800); border: 1px solid var(--gray-700); border-radius: var(--radius-sm); color: var(--white); font-size: 0.9375rem; outline: none; }
.newsletter-form input:focus { border-color: var(--gray-500); }
.newsletter-form .btn { padding: 0.75rem 1.25rem; font-size: 0.875rem; flex-shrink: 0; }

.footer-contact-info p { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; color: var(--gray-400); margin-bottom: 0.5rem;}
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-block: 1.5rem; margin-top: 3rem; border-top: 1px solid var(--gray-800); font-size: 0.875rem; flex-wrap: wrap;}
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { color: var(--gray-400); text-decoration: none; }
.footer-bottom-links a:hover { color: var(--white); }

/* Filter Tabs (Portfolio) */
.filter-tabs { display: flex; justify-content: center; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 3rem; }
.filter-tab { padding: 0.5rem 1.25rem; border-radius: 50px; border: 1px solid var(--gray-200); background: var(--white); color: var(--gray-600); cursor: pointer; font-weight: 500; font-size: 0.875rem; transition: var(--transition); }
.filter-tab:hover, .filter-tab.active { border-color: var(--primary); background: var(--primary); color: var(--white); }