:root {
  --color-bg: #0b1121;
  /* very dark navy */
  --color-bg-alt: #111827;
  /* slightly lighter navy for sections */
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-accent: #3b82f6;
  /* electric blue */
  --color-accent-hover: #2563eb;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header & Nav */
header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  background-color: rgba(11, 17, 33, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo:hover {
  color: var(--color-text);
  /* Override global a:hover */
}

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

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links .btn {
  padding: 0.5rem 1rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
  font-size: 1.25rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-accent {
  color: var(--color-accent);
}

p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  max-width: 800px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.75rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.4);
  color: white;
}

/* Hero Section */
.hero {
  padding: var(--spacing-2xl) 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 75vh;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 800px;
  max-height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(11, 17, 33, 0) 70%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* Sections */
section {
  padding: var(--spacing-2xl) 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header p {
  margin: 0 auto;
}

/* Page Headers (for inner pages) */
.page-header {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background-color: var(--color-bg-alt);
}

.page-header h1 {
  margin-bottom: 0.5rem;
}

.page-header p {
  margin: 0 auto;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Cards (Services, Values) */
.card {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: var(--spacing-lg);
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.04);
  border-color: rgba(59, 130, 246, 0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card p {
  font-size: 1rem;
  margin-bottom: 0;
  flex-grow: 1;
}

/* About Section Specifics */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-content h2 {
  margin-bottom: var(--spacing-lg);
}

/* Forms */
form {
  display: grid;
  gap: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.02);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-weight: 500;
  font-size: 0.95rem;
}

input,
textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.08);
}

textarea {
  min-height: 150px;
  resize: vertical;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: -0.5rem;
}

/* Footer */
footer {
  background-color: var(--color-bg-alt);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
  color: var(--color-text);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Responsive Utilities */
@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-alt);
    flex-direction: column;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    align-items: flex-start;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links .btn {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
  }

  .hero {
    padding: var(--spacing-xl) 0;
    min-height: auto;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    text-align: center;
    width: 100%;
  }

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

  form {
    padding: var(--spacing-lg);
  }
}

/* Enhancements & Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.badge svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  border-radius: 50%;
  transition: all 0.2s ease;
}

.social-icon:hover {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-email {
  color: var(--color-accent) !important;
  font-weight: 500;
  transition: color 0.2s ease;
}

.footer-email:hover {
  color: var(--color-accent-hover) !important;
}