:root {
  /* Colors */
  --color-charcoal: #111827;
  --color-charcoal-light: #1F2937;
  --color-charcoal-medium: #374151;
  --color-red: #DC2626;
  --color-red-dark: #991B1B;
  --color-red-deep: #7F1D1D;
  --color-white: #FFFFFF;
  --color-slate: #6B7280;
  --color-slate-light: #9CA3AF;
  --color-gold: #F59E0B;
  
  /* Fonts */
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-body: 'Nunito Sans', sans-serif;
  
  /* Easings */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
}

body {
  background-color: var(--color-charcoal);
  color: var(--color-white);
  line-height: 1.6;
  opacity: 0;
  animation: pageFadeIn 0.5s forwards;
}

@keyframes pageFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
}

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

ul {
  list-style: none; /* override when using svgs */
}

/* Typography Utilities */
.text-red { color: var(--color-red); }
.text-white { color: var(--color-white); }
.text-slate { color: var(--color-slate); }
.text-gold { color: var(--color-gold); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-family: var(--font-heading);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.btn-primary {
  background-color: var(--color-red);
  color: var(--color-white);
  border: 2px solid var(--color-red);
  animation: pulseGlow 2.5s infinite;
}

.btn-primary:hover {
  background-color: var(--color-white);
  color: var(--color-red);
  animation: none;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-ghost:hover {
  background-color: var(--color-white);
  color: var(--color-charcoal);
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 rgba(220, 38, 38, 0.5); }
  50% { box-shadow: 0 0 20px rgba(220, 38, 38, 0.5); }
  100% { box-shadow: 0 0 0 rgba(220, 38, 38, 0); }
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 80px 0;
}

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  padding: 20px 0;
}

header.scrolled {
  background-color: var(--color-charcoal);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid var(--color-charcoal-medium);
  padding: 15px 0;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.logo-bold {
  color: var(--color-red);
  font-weight: 700;
}

.logo-light {
  color: var(--color-white);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 1px;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-white);
}

.mobile-menu-btn svg {
  transition: transform 0.3s ease;
}

.mobile-menu-btn.open svg {
  transform: rotate(90deg);
}

.mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: var(--color-charcoal);
  border-bottom: 1px solid var(--color-charcoal-medium);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.mobile-nav.open {
  max-height: 500px;
}

.mobile-nav-inner {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* Section Headings */
.section-heading {
  font-size: 3rem;
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

.heading-underline {
  height: 4px;
  background-color: var(--color-red);
  width: 0;
  transition: width 0.7s var(--ease-out);
}

.heading-underline.visible {
  width: 60px;
}

.section-subheading {
  color: var(--color-slate);
  font-size: 1.2rem;
  max-width: 600px;
  margin-bottom: 50px;
}

/* 3D Cards */
.card-3d-wrapper {
  perspective: 800px;
  height: 100%;
}

.card-3d {
  background-color: var(--color-charcoal-light);
  border: 1px solid var(--color-charcoal-medium);
  padding: 30px;
  transition: border-color 0.3s ease, transform 0.4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-3d:hover {
  border-color: var(--color-red);
}

/* Service Cards */
.service-icon {
  margin-bottom: 20px;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.service-desc {
  color: var(--color-slate);
  flex-grow: 1;
}

.service-arrow {
  margin-top: 20px;
  align-self: flex-end;
  opacity: 0.5;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.card-3d:hover .service-arrow {
  opacity: 1;
  transform: translateX(5px);
}

/* Footer */
footer {
  background-color: var(--color-charcoal-light);
  padding: 60px 0 0 0;
  border-top: 1px solid var(--color-charcoal-medium);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-heading {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--color-white);
}

.footer-text {
  color: var(--color-slate);
  margin-bottom: 15px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--color-slate);
  transition: color 0.3s ease;
}

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

.social-icons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-icons svg {
  color: var(--color-slate);
  transition: color 0.3s ease;
}

.social-icons a:hover svg {
  color: var(--color-red);
}

.footer-bottom {
  background-color: var(--color-red-deep);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  color: var(--color-white);
  font-size: 0.9rem;
}

/* Media Queries */
@media (max-width: 768px) {
  .nav-links.desktop-only {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .btn {
    width: 100%;
  }

  h1.hero-main {
    font-size: 42px !important;
  }
  
  .desktop-logo {
    height: 38px !important;
  }
}

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

.form-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-heading);
  letter-spacing: 1px;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  background-color: var(--color-charcoal);
  border: 1px solid var(--color-charcoal-medium);
  color: var(--color-white);
  font-family: var(--font-body);
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-red);
}

.form-control.error {
  border-color: var(--color-red);
}

.error-message {
  color: var(--color-red);
  font-size: 0.85rem;
  margin-top: 5px;
  display: none;
}

.error-message.visible {
  display: block;
}

.shake {
  animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

.success-message {
  background-color: #065f46; /* dark green */
  border: 1px solid #10b981;
  padding: 20px;
  text-align: center;
  display: none;
}
.error-banner {
  background-color: var(--color-red-dark);
  border: 1px solid var(--color-red);
  padding: 20px;
  text-align: center;
  display: none;
  margin-bottom: 20px;
}