/* ==========================================================================
   SWIFT WING — Industrial Drone Secondary Development
   Modern Aerospace & Robotics Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-primary: #070d18;
  --bg-secondary: #0c1626;
  --bg-tertiary: #132238;
  --bg-card: rgba(15, 27, 48, 0.75);
  --bg-card-hover: rgba(22, 38, 66, 0.85);
  --bg-glass: rgba(10, 20, 36, 0.72);

  --text-primary: #f0f4f9;
  --text-secondary: #9cb1cb;
  --text-muted: #627794;
  --text-inverse: #070d18;

  --accent-cyan: #00d4ff;
  --accent-cyan-glow: rgba(0, 212, 255, 0.25);
  --accent-orange: #ff7728;
  --accent-orange-glow: rgba(255, 119, 40, 0.25);
  --accent-blue: #2563eb;

  --border-color: rgba(156, 177, 203, 0.14);
  --border-hover: rgba(0, 212, 255, 0.4);
  --border-active: rgba(255, 119, 40, 0.5);

  /* Typography */
  --font-heading: 'Sora', system-ui, -apple-system, sans-serif;
  --font-body: 'Source Sans 3', 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing & Layout */
  --container-max: 1240px;
  --header-height: 74px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Elevation */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 30px var(--accent-cyan-glow);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. Container & Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  max-width: 760px;
  margin: 0 auto 56px auto;
  text-align: center;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.badge-tag.orange {
  background: rgba(255, 119, 40, 0.1);
  border-color: rgba(255, 119, 40, 0.3);
  color: var(--accent-orange);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange) 0%, #e05e10 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(255, 119, 40, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff8843 0%, #ed6a1c 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 119, 40, 0.5);
  color: #ffffff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation (Fixed, Clean, Mobile Hamburger)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(6, 13, 24, 0.92);
  border-bottom-color: rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #ffffff;
}

.brand-icon-wrapper {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: var(--radius-sm);
}

.brand-icon-wrapper img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.brand-logo span b {
  color: var(--accent-orange);
}

/* Desktop Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

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

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

/* Hamburger Menu Toggle Button */
.hamburger-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all var(--transition-fast);
}

.hamburger-btn:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.06);
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* Hamburger Active Transform */
.hamburger-btn.is-active .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background-color: var(--accent-cyan);
}

.hamburger-btn.is-active .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn.is-active .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background-color: var(--accent-cyan);
}

/* Mobile Nav Drawer Overlay */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 9, 16, 0.7);
  backdrop-filter: blur(8px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: #091322;
  border-left: 1px solid var(--border-color);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.6);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  transition: right var(--transition-normal);
}

.mobile-nav-drawer.is-open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.mobile-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

.mobile-close-btn:hover {
  color: #ffffff;
}

.mobile-menu-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.mobile-menu-links a {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.mobile-menu-links a:hover,
.mobile-menu-links a.active {
  color: var(--accent-cyan);
}

.mobile-drawer-footer {
  margin-top: auto;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mobile-drawer-footer p {
  margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   5. Hero Section (Lower Attached Image Background with High-End Overlay)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background-color: var(--bg-primary);
  background-image: 
    linear-gradient(180deg, rgba(7, 13, 24, 0.45) 0%, rgba(7, 13, 24, 0.88) 75%, #070d18 100%),
    url('../assets/images/hero_bg.jpg');
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: scroll;
  padding: 120px 0 90px 0;
  overflow: hidden;
}

.hero-overlay-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 24px;
}

.hero-headline .highlight {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: clamp(1.125rem, 2vw, 1.35rem);
  color: #d1dfed;
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 720px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Hero Tech Badges Strip */
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.pill-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(12, 22, 38, 0.65);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.84rem;
  color: var(--text-secondary);
  backdrop-filter: blur(6px);
}

.pill-item svg {
  color: var(--accent-cyan);
}

/* --------------------------------------------------------------------------
   6. Key Stats / Highlights Ribbon
   -------------------------------------------------------------------------- */
.stats-ribbon {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 36px 0;
  position: relative;
  z-index: 5;
}

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

.stat-card {
  display: flex;
  flex-direction: column;
  padding: 10px 16px;
  border-left: 2px solid var(--border-color);
  transition: border-color var(--transition-normal);
}

.stat-card:hover {
  border-left-color: var(--accent-cyan);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-value span {
  color: var(--accent-orange);
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   7. Solutions Section (Standout Cards with Dedicated Images)
   -------------------------------------------------------------------------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  backdrop-filter: blur(12px);
  position: relative;
}

.solution-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), 0 0 24px rgba(0, 212, 255, 0.15);
  background: var(--bg-card-hover);
}

.card-img-wrap {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.solution-card:hover .card-img-wrap img {
  transform: scale(1.06);
}

.card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 13, 24, 0.1) 0%, rgba(7, 13, 24, 0.8) 100%);
  pointer-events: none;
}

.card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(6, 13, 24, 0.85);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  backdrop-filter: blur(6px);
  z-index: 2;
}

.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-number {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent-orange);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.solution-card:hover .card-title {
  color: var(--accent-cyan);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-deliverables {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.card-deliverables-title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-item {
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

/* Featured Visual Showcase inside Solutions */
.solutions-featured {
  margin-top: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.featured-info h3 {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  color: #ffffff;
  margin-bottom: 14px;
}

.featured-info p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.65;
}

.featured-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.featured-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   8. Core Services Section (Engineering & Secondary Dev)
   -------------------------------------------------------------------------- */
.services-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: start;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 20px;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.service-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.service-icon-box {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.service-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Hardware Framework Showcase Side-panel */
.hardware-showcase {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.hardware-showcase-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin-bottom: 20px;
  background: #000;
}

.hardware-showcase-img img {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: contain;
}

.hardware-showcase h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: #ffffff;
  margin-bottom: 10px;
}

.hardware-showcase p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.framework-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.framework-pill {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 119, 40, 0.12);
  border: 1px solid rgba(255, 119, 40, 0.3);
  color: var(--accent-orange);
}

/* --------------------------------------------------------------------------
   9. Technical Capabilities & Architecture
   -------------------------------------------------------------------------- */
.capabilities-wrapper {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, #07101d 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.capability-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: rgba(15, 27, 48, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.capability-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
  background: rgba(15, 27, 48, 0.7);
  transform: translateY(-2px);
}

.capability-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.capability-info h4 {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.capability-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Logic Flow Banner */
.logic-flow-card {
  margin-top: 40px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.logic-flow-card img {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.logic-flow-info h4 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.logic-flow-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* --------------------------------------------------------------------------
   10. Project Case Studies (Enterprise Cards)
   -------------------------------------------------------------------------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.case-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg), 0 0 24px rgba(0, 212, 255, 0.12);
}

.case-header-img {
  position: relative;
  width: 100%;
  height: 250px;
  background-color: var(--bg-tertiary);
  overflow: hidden;
}

.case-header-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-card:hover .case-header-img img {
  transform: scale(1.05);
}

.case-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 13, 24, 0.15) 0%, rgba(7, 13, 24, 0.9) 100%);
}

.case-industry-tag {
  position: absolute;
  bottom: 16px;
  left: 20px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.4);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  backdrop-filter: blur(8px);
}

.case-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 18px;
}

.case-specs {
  display: grid;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.spec-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-orange);
}

.spec-val {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.case-deliverables-box {
  margin-top: auto;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  border-left: 3px solid var(--accent-cyan);
}

.case-deliv-title {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffffff;
  margin-bottom: 4px;
}

.case-deliv-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   11. About Us & Strengths Section
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.about-text-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-lead-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 8px;
}

.about-lead-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 14px;
}

.about-lead-card p strong {
  color: #ffffff;
}

.quote-box {
  border-left: 4px solid var(--accent-orange);
  background: rgba(255, 119, 40, 0.05);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: 10px;
}

.quote-box p {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.5;
}

.strengths-column h3 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  color: #ffffff;
  margin-bottom: 20px;
}

.strengths-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  list-style: none;
}

.strength-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all var(--transition-fast);
}

.strength-item:hover {
  border-color: rgba(0, 212, 255, 0.35);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.strength-check {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 119, 40, 0.15);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.strength-item h5 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: #ffffff;
  margin-bottom: 4px;
}

.strength-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   12. Contact & Quotation Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}

.contact-info-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info-panel h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: #ffffff;
}

.contact-info-panel p {
  color: var(--text-secondary);
  line-height: 1.65;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-meta span {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-meta a, .contact-meta strong {
  font-size: 1rem;
  color: #ffffff;
  font-weight: 600;
}

.contact-meta a:hover {
  color: var(--accent-cyan);
}

/* Polished Form */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
}

.form-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.form-card .form-subtitle {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-label span.req {
  color: var(--accent-orange);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: rgba(6, 13, 24, 0.75);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
  background: rgba(6, 13, 24, 0.95);
  outline: none;
}

select.form-control {
  cursor: pointer;
}

select.form-control option {
  background: #091322;
  color: #ffffff;
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.form-alert {
  margin-top: 16px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-alert.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}

/* --------------------------------------------------------------------------
   13. Footer (Streamlined, Multi-Column, Professional)
   -------------------------------------------------------------------------- */
.site-footer {
  background: #040810;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 80px 0 36px 0;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-brand-col p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.65;
  max-width: 340px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ffffff;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  transform: translateX(3px);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-contact-info a {
  color: #ffffff;
}

.footer-contact-info a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 16px;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.back-to-top-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

/* --------------------------------------------------------------------------
   Featured Architecture Figures & Quick Access Components
   -------------------------------------------------------------------------- */
.featured-architecture-figure {
  margin: 36px 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.figure-img-wrap {
  width: 100%;
  max-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #060c17;
}

.figure-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.figure-caption-box {
  padding: 20px 28px;
  background: rgba(12, 22, 38, 0.95);
  border-top: 1px solid var(--border-color);
}

.figure-caption-box h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: #ffffff;
  font-weight: 700;
}

.quick-access-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.quick-access-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.quick-access-card:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.quick-access-card h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.quick-access-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
  flex-grow: 1;
}

.quick-access-card .arrow-link {
  color: var(--accent-orange);
  font-weight: 700;
  font-size: 1.1rem;
}

.services-list-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.positioning-banner {
  margin-top: 36px;
  padding: 24px 28px;
  border-left: 4px solid var(--accent-orange);
  background: rgba(255, 119, 40, 0.08);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.positioning-banner p {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: #ffffff;
  margin: 0;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   14. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1060px) {
  /* Header & Navigation switch to hamburger */
  .nav-menu {
    display: none !important;
  }

  .header-actions .btn {
    display: none !important;
  }

  .hamburger-btn {
    display: flex !important;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .services-layout {
    grid-template-columns: 1fr;
  }

  .hardware-showcase {
    position: static;
  }

  .solutions-featured {
    grid-template-columns: 1fr;
  }

  .logic-flow-card {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }

  .hero-section {
    min-height: 80vh;
    padding: 90px 0 70px 0;
  }

  .hero-headline {
    font-size: 2.15rem;
  }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-wrapper {
    padding: 24px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    flex-direction: column;
  }

  .form-card {
    padding: 24px 18px;
  }
}