/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; font-weight: 400; line-height: 1.6; color: #1A1A1A; background: #FFFFFF; -webkit-font-smoothing: antialiased; }
a { color: #00BFFF; text-decoration: none; transition: color 0.2s ease; }
a:hover, a:focus-visible { color: #FF6B1A; }
a:focus-visible { outline: 2px solid #00BFFF; outline-offset: 2px; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
::selection { background: #FF6B1A; color: #FFFFFF; }

/* ===== CSS Variables ===== */
:root {
  --color-primary: #FF6B1A;
  --color-secondary: #2C2C2C;
  --color-accent: #00BFFF;
  --color-light: #FFFFFF;
  --color-dark: #1A1A1A;
  --color-text: #1A1A1A;
  --color-text-muted: #666666;
  --color-border: #e0e0e0;
  --color-success: #28A745;
  --font-heading: 'Impact', 'Arial Black', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-meta: 'Courier New', monospace;
  --header-height: 70px;
  --content-max-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --shadow-light: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-medium: 0 4px 16px rgba(0,0,0,0.12);
}

/* ===== Skip Link ===== */
.skip-link { position: absolute; top: -100%; left: 0; background: #FF6B1A; color: #FFFFFF; padding: 0.5rem 1rem; z-index: 1000; font-weight: bold; }
.skip-link:focus { top: 0; }

/* ===== Site Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: transparent; transition: background var(--transition-normal), box-shadow var(--transition-normal); }
.site-header.scrolled { background: #2C2C2C; box-shadow: var(--shadow-medium); }
.header-wrapper { max-width: var(--content-max-width); margin: 0 auto; padding: 0 1.5rem; display: flex; align-items: center; height: var(--header-height); position: relative; }

.logo { display: flex; align-items: baseline; gap: 0.3rem; color: #FFFFFF; text-decoration: none; }
.logo-icon { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700; color: #FF6B1A; letter-spacing: 0.05em; }
.logo-sub { font-family: var(--font-meta); font-size: 0.8rem; color: #00BFFF; text-transform: uppercase; letter-spacing: 0.15em; }

.nav { display: flex; align-items: center; margin-left: auto; }
.nav-list { display: flex; gap: 0.2rem; }
.nav-list li a { display: block; padding: 0.5rem 1rem; font-family: var(--font-body); font-size: 0.9rem; font-weight: 500; color: #FFFFFF; text-transform: uppercase; letter-spacing: 0.08em; border-radius: 4px; transition: background var(--transition-fast), color var(--transition-fast); }
.nav-list li a:hover, .nav-list li a:focus-visible { background: rgba(0,191,255,0.15); color: #00BFFF; }
.nav-list li a[aria-current="page"] { color: #FF6B1A; border-bottom: 2px solid #FF6B1A; }

.cta-btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.5rem 1.2rem; background: #FF6B1A; color: #FFFFFF; border-radius: 24px; font-family: var(--font-body); font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-left: 1rem; transition: background var(--transition-fast), transform var(--transition-fast); white-space: nowrap; }
.cta-btn:hover, .cta-btn:focus-visible { background: #e05e12; transform: scale(1.04); }
.cta-icon { font-size: 1.1rem; }

.nav-toggle { display: none; flex-direction: column; justify-content: center; align-items: center; width: 40px; height: 40px; background: transparent; border: none; cursor: pointer; margin-left: auto; padding: 8px; }
.nav-toggle-bar { display: block; width: 24px; height: 2px; background: #FFFFFF; margin: 3px 0; border-radius: 2px; transition: transform var(--transition-fast), opacity var(--transition-fast); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ===== Site Footer ===== */
.site-footer { background: #1A1A1A; color: #FFFFFF; padding: 3rem 1.5rem 1.5rem; }
.footer-wrapper { max-width: var(--content-max-width); margin: 0 auto; }
.footer-columns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-bottom: 2rem; }
.footer-column { }
.footer-heading { font-family: var(--font-heading); font-size: 1.2rem; color: #FF6B1A; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 0.08em; }
.footer-text { font-size: 0.85rem; color: #AAAAAA; line-height: 1.6; margin-bottom: 0.8rem; }
.footer-text.trust-statement { font-size: 0.8rem; color: #888; font-style: italic; }
.footer-links li a { display: block; padding: 0.3rem 0; font-size: 0.85rem; color: #CCCCCC; transition: color var(--transition-fast); }
.footer-links li a:hover { color: #00BFFF; }
.footer-contact li { font-size: 0.85rem; color: #CCCCCC; padding: 0.2rem 0; }
.footer-contact li a { color: #00BFFF; }
.footer-contact li a:hover { color: #FF6B1A; }
.footer-note { font-size: 0.75rem; color: #888; margin-top: 0.5rem; }

.footer-bottom { border-top: 1px solid #333; padding-top: 1.5rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-bottom-left { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer-bottom-left span { font-size: 0.8rem; color: #888; }
.footer-icp { font-family: var(--font-meta); font-size: 0.75rem; color: #666; }
.footer-bottom-right { display: flex; gap: 1.5rem; }
.footer-bottom-right a { font-size: 0.8rem; color: #00BFFF; transition: color var(--transition-fast); }
.footer-bottom-right a:hover { color: #FF6B1A; }

/* ===== Scroll Progress ===== */
.scroll-progress { position: fixed; top: 0; left: 0; width: 0%; height: 3px; background: linear-gradient(90deg, #FF6B1A, #00BFFF); z-index: 200; pointer-events: none; transition: width 0.1s linear; }

/* ===== Reveal Animation ===== */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }
[data-reveal="fade-left"] { transform: translateX(-30px); }
[data-reveal="fade-left"].revealed { transform: translateX(0); }

/* ===== General Utilities ===== */
.container { max-width: var(--content-max-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; color: #1A1A1A; text-transform: uppercase; letter-spacing: 0.04em; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 5vw, 3rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
p { margin-bottom: 1rem; }
.btn { display: inline-block; padding: 0.6rem 1.5rem; border-radius: 24px; font-family: var(--font-body); font-weight: 600; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; border: none; cursor: pointer; transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast); }
.btn-primary { background: #FF6B1A; color: #FFFFFF; }
.btn-primary:hover, .btn-primary:focus-visible { background: #e05e12; transform: scale(1.02); box-shadow: 0 4px 12px rgba(255,107,26,0.4); }
.btn-outline { background: transparent; color: #FF6B1A; border: 2px solid #FF6B1A; }
.btn-outline:hover { background: #FF6B1A; color: #FFFFFF; }

/* ===== Breadcrumbs ===== */
.breadcrumbs { padding: 1rem 0; font-size: 0.85rem; color: #666; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.breadcrumbs a { color: #00BFFF; }
.breadcrumbs a:hover { color: #FF6B1A; }
.breadcrumbs span { margin: 0 0.3rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-columns { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .site-header[data-open] .nav { display: flex; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: #2C2C2C; padding: 1rem; box-shadow: var(--shadow-medium); }
  .nav-list { flex-direction: column; gap: 0.2rem; }
  .nav-list li a { padding: 0.8rem 1rem; }
  .cta-btn { margin-left: 0; }
  .header-wrapper { flex-wrap: wrap; }
}

@media (max-width: 768px) {
  .footer-columns { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-bottom-right { margin-top: 0.5rem; }
  .logo-icon { font-size: 1.5rem; }
  .logo-sub { font-size: 0.7rem; }
}

/* ===== Focus Visible & Reduced Motion ===== */
:focus-visible { outline: 2px solid #00BFFF; outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}