/* ==================================================================
   Variables
   ================================================================== */
:root {
  /* Color System - Dark Cyber-Neon Theme */
  --color-bg-primary: #09090b;          /* deep space black */
  --color-bg-secondary: #18181b;        /* dark metallic slate */
  --color-bg-elevated: #111827;         /* elevated panel */
  --color-bg-soft: #020617;             /* subtle backdrop */

  --color-text-primary: #f9fafb;        /* high-contrast white */
  --color-text-secondary: #e5e7eb;      /* soft white */
  --color-text-muted: #9ca3af;          /* muted gray */

  --color-primary: #06b6d4;             /* neon azure / cyber-blue */
  --color-primary-soft: rgba(6, 182, 212, 0.16);

  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-danger:  #ef4444;

  --color-gray-50:  #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */
  --font-size-5xl: 3rem;     /* 48px */

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing Scale (px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows - sharp, cyber-industrial */
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --shadow-strong: 0 24px 80px rgba(0, 0, 0, 0.85);
  --shadow-glow-primary: 0 0 0 1px rgba(6, 182, 212, 0.7), 0 0 25px rgba(6, 182, 212, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 220ms ease;
  --transition-slow: 320ms ease;
}

/* ==================================================================
   Reset / Normalize
   ================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
  max-width: 100%;
}

body {
  margin: 0;
  overflow-x: clip;
  max-width: 100%;
}

h1, h2, h3, h4, h5, h6,
p, figure, blockquote,
dl, dd {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button {
  border: none;
  background: none;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

:focus {
  outline: none;
}

/* ==================================================================
   Base Styles
   ================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background: radial-gradient(circle at top, #0b1120 0, var(--color-bg-primary) 55%, #000 100%);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: 0.03em;
}

h1 { font-size: clamp(2.5rem, 4vw, 3.5rem); margin-bottom: var(--space-4); }

h2 { font-size: clamp(2rem, 3vw, 2.5rem); margin-bottom: var(--space-3); }

h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); margin-bottom: var(--space-2); }

h4 { font-size: var(--font-size-xl); margin-bottom: var(--space-2); }

h5 { font-size: var(--font-size-lg); margin-bottom: var(--space-2); }

h6 { font-size: var(--font-size-base); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: var(--space-2); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

strong, b {
  font-weight: 600;
}

code, pre {
  font-family: var(--font-mono);
}

pre {
  margin: 0;
}

a {
  position: relative;
  transition: color var(--transition-base), transform var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

a:active {
  transform: translateY(1px);
}

/* Focus-visible for accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ==================================================================
   Utilities
   ================================================================== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 1200px;
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

/* Layout Helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.w-full { width: 100%; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==================================================================
   Components
   ================================================================== */

/* Buttons - primary action uses neon azure */
.btn {
  --btn-bg: var(--color-bg-secondary);
  --btn-color: var(--color-text-primary);
  --btn-border: rgba(148, 163, 184, 0.35);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8rem 1.75rem;
  border-radius: 999px;
  border: 1px solid var(--btn-border);
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.12), transparent 55%), var(--btn-bg);
  color: var(--btn-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-fast), border-color var(--transition-fast);
}

.btn-primary {
  --btn-bg: linear-gradient(135deg, #06b6d4 0%, #22d3ee 40%, #0ea5e9 100%);
  --btn-color: #0b1120;
  --btn-border: transparent;
  box-shadow: 0 18px 40px rgba(6, 182, 212, 0.45);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow-primary);
  transform: translateY(-1px);
}

.btn-outline {
  --btn-bg: rgba(15, 23, 42, 0.8);
  --btn-color: var(--color-text-primary);
  --btn-border: rgba(148, 163, 184, 0.7);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(6, 182, 212, 0.55);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Inputs */
.input,
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background-color: rgba(15, 23, 42, 0.95);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow-primary);
}

input[disabled],
textarea[disabled],
select[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Card - used for hero layers, service tiles etc. */
.card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: radial-gradient(circle at top left, rgba(6, 182, 212, 0.16), transparent 55%), linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.92));
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(6, 182, 212, 0.14), transparent 50%);
  mix-blend-mode: screen;
  opacity: 0.7;
  pointer-events: none;
}

.card > * {
  position: relative;
  z-index: 1;
}

/* Hero layout helpers (static, no JS) */
.hero-shell {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (max-width: 768px) {
  .hero-shell {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.1fr);
  gap: var(--space-10);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at left, rgba(6, 182, 212, 0.35), transparent 55%), rgba(15, 23, 42, 0.85);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.hero-media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  isolation: isolate;
  background-color: #020617;
  box-shadow: var(--shadow-strong);
}

.hero-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.36), transparent 55%);
  mix-blend-mode: screen;
}

.hero-media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
}

.hero-stat-bar {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: radial-gradient(circle at left, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.65);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

@media (max-width: 600px) {
  .hero-stat-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Tag / pill utility for categories */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.pill-primary {
  background-color: rgba(6, 182, 212, 0.12);
  border-color: rgba(6, 182, 212, 0.7);
  color: var(--color-primary);
}

/* ==================================================================
   Accessibility & Motion
   ================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ==================================================================
   Global Injections (as requested)
   ================================================================== */

ul {
  list-style: none !important;
}

.nav-toggle {
  flex-direction: column;
}