/* ==========================================================================
   DEVCRAFT SOLUTIONS - MODERN DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
  /* Color Palette - Dark Mode (Default) */
  --bg-primary: #0A0E17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-input: #1E293B;
  --bg-glass: rgba(15, 23, 42, 0.65);
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --accent-cyan: #38BDF8;
  --accent-blue: #3B82F6;
  --accent-orange: #F97316;
  --accent-amber: #EA580C;
  --accent-warm: #E87A24;
  --accent-indigo: #6366F1;
  --accent-emerald: #10B981;
  
  --gradient-primary: linear-gradient(135deg, #F97316 0%, #EA580C 50%, #E87A24 100%);
  --gradient-brand: linear-gradient(135deg, #FB923C 0%, #EA580C 100%);
  --gradient-accent: linear-gradient(135deg, #38BDF8 0%, #3B82F6 100%);
  --gradient-water: linear-gradient(135deg, #0284C7 0%, #38BDF8 100%);
  --gradient-civic: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
  --gradient-border: linear-gradient(135deg, rgba(249, 115, 22, 0.4), rgba(234, 88, 12, 0.1), rgba(232, 122, 36, 0.4));
  
  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-highlight: rgba(249, 115, 22, 0.35);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(249, 115, 22, 0.22);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #F8FAFC;
  --bg-secondary: #EDF2F7;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-input: #F1F5F9;
  --bg-glass: rgba(255, 255, 255, 0.75);
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-highlight: rgba(37, 99, 235, 0.3);
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.09);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.12);
}

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

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Ambient Glowing Background Blobs */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  transition: opacity var(--transition-slow);
}

[data-theme="light"] .bg-glow {
  opacity: 0.25;
}

.bg-glow-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -50px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.6) 0%, rgba(56, 189, 248, 0) 70%);
}

.bg-glow-2 {
  width: 450px;
  height: 450px;
  bottom: 20%;
  left: -100px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.5) 0%, rgba(139, 92, 246, 0) 70%);
}

.bg-glow-3 {
  width: 600px;
  height: 600px;
  bottom: -150px;
  right: 10%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, rgba(6, 182, 212, 0) 70%);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography & Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 52px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(234, 88, 12, 0.25));
  transition: transform var(--transition-fast);
}

.brand-logo:hover .logo-img {
  transform: scale(1.03);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.btn-nav-cta {
  padding: 8px 18px !important;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-full);
  color: var(--accent-cyan) !important;
}

.btn-nav-cta:hover {
  background: var(--gradient-primary);
  color: #FFFFFF !important;
  border-color: transparent;
}

.btn-nav-cta::after {
  display: none !important;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-cyan);
  transform: scale(1.05);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 24px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  z-index: 102;
}

.mobile-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--text-primary);
  border-radius: 3px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 24px;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}

.metric-item .metric-value {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
}

.metric-item .metric-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.metric-divider {
  width: 1px;
  height: 36px;
  background-color: var(--border-subtle);
}

/* Hero Terminal Card */
.glass-terminal {
  background: #FFFFFF;
  border: 1.5px solid rgba(249, 115, 22, 0.25);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

[data-theme="dark"] .glass-terminal {
  background: var(--bg-card);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.glass-terminal:hover {
  transform: translateY(-4px);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: #F8FAFC;
  border-bottom: 1px solid #E2E8F0;
}

[data-theme="dark"] .terminal-header {
  background: rgba(0, 0, 0, 0.25);
  border-color: var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background-color: #EF4444; }
.dot-yellow { background-color: #F59E0B; }
.dot-green { background-color: #10B981; }

.terminal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: #64748B;
}

.terminal-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  color: #059669;
  background: rgba(16, 185, 129, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
}

.terminal-body {
  padding: 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  line-height: 1.65;
  overflow-x: auto;
  background: #FAFAFA;
}

[data-theme="dark"] .terminal-body {
  background: transparent;
}

.t-keyword { color: #E11D48; font-weight: 600; }
.t-def { color: #EA580C; font-weight: 600; }
.t-key { color: #4F46E5; }
.t-str { color: #059669; }
.t-comment { color: #94A3B8; font-style: italic; }
.t-bool { color: #D97706; font-weight: 600; }
.t-func { color: #2563EB; font-weight: 600; }

.terminal-footer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: #F1F5F9;
  border-top: 1px solid #E2E8F0;
  font-size: 0.78rem;
  color: #64748B;
}

[data-theme="dark"] .terminal-footer {
  background: rgba(0, 0, 0, 0.15);
  border-color: var(--border-subtle);
  color: var(--text-muted);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

/* ==========================================================================
   TRUST RIBBON
   ========================================================================== */
.trust-ribbon {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.2);
}

.ribbon-title {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 24px;
}

.ribbon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.ribbon-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

[data-theme="dark"] .ribbon-card {
  background: var(--bg-card);
  border-color: var(--border-subtle);
}

.ribbon-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-highlight);
}

.ribbon-icon {
  font-size: 1.8rem;
}

.ribbon-card strong {
  display: block;
  font-size: 0.92rem;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
}

.ribbon-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   SECTION COMMON HEADER
   ========================================================================== */
section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 54px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   SOLUTIONS & PORTFOLIO (BRIGHT, LUMINOUS & CRISP)
   ========================================================================== */
.section-solutions {
  background: transparent;
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--accent-orange);
  color: #FFFFFF;
  border-color: var(--accent-orange);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
  transform: translateY(-1px);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.solution-card {
  position: relative;
  background: #FFFFFF !important;
  background-color: #FFFFFF !important;
  border: 1px solid #E2E8F0 !important;
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}

.solution-card.featured {
  background: #FFFFFF !important;
  background-color: #FFFFFF !important;
  border: 1.5px solid rgba(249, 115, 22, 0.35) !important;
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.08);
}

.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-orange) !important;
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.15);
}

[data-theme="dark"] .solution-card {
  background: #111827 !important;
  background-color: #111827 !important;
  border-color: var(--border-subtle) !important;
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .solution-card.featured {
  background: #1E293B !important;
  background-color: #1E293B !important;
  border-color: var(--border-highlight) !important;
}

[data-theme="dark"] .solution-card:hover {
  box-shadow: var(--shadow-lg);
}

.card-badge-top {
  position: absolute;
  top: 20px;
  right: 22px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: #FFF7ED;
  color: var(--accent-amber);
  border: 1px solid rgba(249, 115, 22, 0.3);
}

[data-theme="dark"] .card-badge-top {
  background: rgba(249, 115, 22, 0.15);
  color: var(--accent-orange);
}

.card-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.civic-icon { background: linear-gradient(135deg, #F97316 0%, #EA580C 100%); }
.water-icon { background: linear-gradient(135deg, #0284C7 0%, #0EA5E9 100%); }
.finance-icon { background: linear-gradient(135deg, #10B981 0%, #059669 100%); }
.health-icon { background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%); }
.retail-icon { background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%); }

.card-title {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.card-subname {
  font-size: 1.05rem;
  color: var(--accent-orange);
  font-weight: 600;
}

.card-tagline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-amber);
  margin-bottom: 14px;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-features {
  margin-bottom: 24px;
}

.card-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.check-icon {
  color: #10B981;
  font-weight: bold;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tech-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: #F1F5F9;
  color: #334155;
  border: 1px solid #E2E8F0;
}

[data-theme="dark"] .tech-tag {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}

[data-theme="dark"] .service-card {
  background: var(--bg-card);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-orange);
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.1);
}

.service-number {
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: 'Outfit', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: #E2E8F0;
  user-select: none;
}

[data-theme="dark"] .service-number {
  color: var(--border-subtle);
}

/* ==========================================================================
   ICON CONTAINERS (TAILWIND / HEROICONS SVG STYLE)
   ========================================================================== */
.ribbon-icon-svg {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-icon-svg {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.expertise-icon-svg {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.info-icon-svg {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cat-title svg {
  color: var(--accent-orange);
  flex-shrink: 0;
}

.service-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
}

.service-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.service-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

/* ==========================================================================
   EXPERTISE SECTION
   ========================================================================== */
.expertise-box {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  box-shadow: var(--shadow-lg);
}

.expertise-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.expertise-item {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  text-align: center;
  transition: transform var(--transition-fast);
}

.expertise-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
}

.expertise-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.expertise-item h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.expertise-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   STACK SECTION
   ========================================================================== */
.stack-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stack-cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-normal);
}

.stack-cat-card:hover {
  border-color: var(--border-highlight);
}

.cat-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  margin-bottom: 18px;
}

.cat-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: #F1F5F9;
  color: #1E293B;
  border: 1px solid #E2E8F0;
  transition: all var(--transition-fast);
}

.pill-primary {
  background: #FFF7ED;
  color: #C2410C;
  border-color: rgba(249, 115, 22, 0.3);
  font-weight: 700;
}

[data-theme="dark"] .pill {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

[data-theme="dark"] .pill-primary {
  background: rgba(249, 115, 22, 0.15);
  color: var(--accent-orange);
  border-color: rgba(249, 115, 22, 0.35);
}

.pill:hover {
  background: var(--gradient-primary);
  color: #FFFFFF;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
}

/* ==========================================================================
   FAQ SECTION (INTERACTIVE ACCORDION)
   ========================================================================== */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
  transition: all var(--transition-fast);
}

[data-theme="dark"] .faq-item {
  background: var(--bg-card);
  border-color: var(--border-subtle);
}

.faq-item.active {
  border-color: var(--accent-orange);
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.1);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-cyan);
}

.faq-icon {
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: flex-start;
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.info-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.info-icon {
  font-size: 1.6rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.1);
}

.info-item strong {
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  display: block;
}

.info-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.link-hover {
  color: var(--accent-cyan);
}
.link-hover:hover {
  text-decoration: underline;
}

/* Form Card */
.contact-form-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.form-title {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.form-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.form-status {
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
  text-align: center;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: 60px 0 30px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-logo {
  height: 44px;
  width: auto;
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 320px;
}

.footer-nav h4, .footer-tech h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-nav ul li, .footer-tech ul li {
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-nav ul li a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.heart {
  color: #EF4444;
}

/* ==========================================================================
   SCROLL TO TOP BUTTON
   ========================================================================== */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 99;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-title {
    font-size: 2.75rem;
  }
  
  .ribbon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 24px;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    z-index: 101;
  }
  
  .main-nav.open {
    transform: translateY(0);
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .solutions-grid,
  .services-grid,
  .stack-categories {
    grid-template-columns: 1fr;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-metrics {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .metric-divider {
    display: none;
  }
  
  .ribbon-grid {
    grid-template-columns: 1fr;
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
  }
}