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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: #1A1A2E;
  background-color: #F5F5F5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  --color-primary: #0B1D3A;
  --color-primary-light: #1A2A4A;
  --color-accent: #FF6B35;
  --color-accent-hover: #e85a2a;
  --color-silver: #C0C0C0;
  --color-silver-light: #d8d8d8;
  --color-text: #1A1A2E;
  --color-bg: #F5F5F5;
  --color-white: #ffffff;
  --color-data-green: #00D4AA;
  --color-warning-yellow: #FFD700;
  --font-heading: Impact, 'Arial Narrow', 'Franklin Gothic Medium', sans-serif;
  --font-mono: 'Courier New', Consolas, monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --gradient-header: linear-gradient(135deg, #0B1D3A 0%, #1A2A4A 100%);
  --gradient-footer: linear-gradient(135deg, #0B1D3A 0%, #0a1628 100%);
  --shadow-card: 0 4px 20px rgba(11, 29, 58, 0.12);
  --shadow-card-hover: 0 8px 32px rgba(11, 29, 58, 0.22);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: Impact, 'Arial Narrow', 'Franklin Gothic Medium', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1rem, 2vw, 1.4rem); }

p { margin-bottom: 1.2rem; }

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

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

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 10000;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius-sm) 0;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-white);
  outline-offset: -3px;
}

/* Site Header */
.site-header {
  position: relative;
  background: var(--gradient-header);
  height: var(--header-height);
  border-bottom: 3px solid var(--color-accent);
  z-index: 1000;
  overflow: hidden;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  position: relative;
  z-index: 2;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-white);
  font-family: Impact, 'Arial Narrow', 'Franklin Gothic Medium', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: opacity var(--transition-fast);
}

.brand-logo:hover {
  opacity: 0.9;
  color: var(--color-white);
}

.brand-icon {
  display: inline-block;
  width: 1.4rem;
  height: 1.4rem;
  background: var(--color-accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  transform: rotate(0deg);
  transition: transform var(--transition-base);
}

.brand-logo:hover .brand-icon {
  transform: rotate(45deg);
}

.brand-text {
  color: var(--color-white);
  font-size: 1.6rem;
  line-height: 1;
}

/* Header Navigation */
.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-silver);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link:hover::after {
  width: 60%;
}

.nav-link[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}

.nav-link[aria-current="page"]::after {
  width: 70%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.5);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--color-silver);
  border-radius: var(--radius-sm);
  cursor: pointer;
  gap: 5px;
  padding: 8px;
  transition: border-color var(--transition-fast);
}

.nav-toggle:hover {
  border-color: var(--color-accent);
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Header Speedline Decoration */
.header-speedline {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 20px,
    rgba(255, 107, 53, 0.4) 20px,
    rgba(255, 107, 53, 0.1) 40px
  );
  z-index: 1;
  clip-path: polygon(0 0, 100% 0, 98% 100%, 2% 100%);
}

/* Site Footer */
.site-footer {
  background: var(--gradient-footer);
  color: var(--color-silver);
  position: relative;
  border-top: 3px solid var(--color-accent);
  overflow: hidden;
  padding-top: 3rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 1.5rem;
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr;
  gap: 2.5rem;
  position: relative;
  z-index: 2;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: Impact, 'Arial Narrow', 'Franklin Gothic Medium', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.03em;
}

.footer-icon {
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  background: var(--color-accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.footer-tagline {
  font-size: 0.95rem;
  color: var(--color-silver);
  line-height: 1.6;
  max-width: 28rem;
  margin: 0;
}

.footer-heading {
  font-family: Impact, 'Arial Narrow', 'Franklin Gothic Medium', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2.4rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.contact-list,
.legal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.contact-link,
.legal-link {
  color: var(--color-silver);
  font-size: 0.9rem;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  text-decoration: none;
}

.contact-link:hover,
.legal-link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.contact-address {
  font-size: 0.9rem;
  color: var(--color-silver);
  line-height: 1.5;
}

.footer-links .legal-list {
  gap: 0.75rem;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  margin-top: 1rem;
  border-top: 1px solid rgba(192, 192, 192, 0.15);
}

.icp {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(192, 192, 192, 0.7);
  letter-spacing: 0.04em;
  margin: 0;
}

.copyright {
  font-size: 0.85rem;
  color: rgba(192, 192, 192, 0.6);
  margin: 0;
}

.footer-speedline {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 25px,
    rgba(255, 107, 53, 0.3) 25px,
    rgba(255, 107, 53, 0.08) 50px
  );
  z-index: 1;
  clip-path: polygon(0 0, 100% 0, 99% 100%, 1% 100%);
}

/* Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--color-accent);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.4);
  pointer-events: none;
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 48px;
  height: 48px;
  border: 2px solid var(--color-accent);
  background: var(--color-primary);
  color: var(--color-accent);
  font-size: 1.4rem;
  line-height: 1;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.9);
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px rgba(11, 29, 58, 0.3);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-white);
  outline-offset: 2px;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

/* Grid System */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
}

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

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
  background: var(--color-silver);
  color: var(--color-primary);
  border-color: var(--color-silver);
}

.btn-secondary:hover {
  background: var(--color-silver-light);
  border-color: var(--color-silver-light);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  gap: 0.4rem;
  padding: 0.8rem 0;
  font-size: 0.85rem;
  color: var(--color-silver);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb li + li::before {
  content: '›';
  color: var(--color-silver);
  font-size: 1.1rem;
  line-height: 1;
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb [aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}

/* Card */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
  border: 1px solid rgba(192, 192, 192, 0.2);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.card:hover::before {
  opacity: 1;
}

/* Section */
.section {
  padding: 4rem 0;
}

.section + .section {
  padding-top: 0;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1.5fr 1.5fr 1fr;
    gap: 2rem;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .header-inner {
    padding: 0 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-header);
    flex-direction: column;
    align-items: stretch;
    padding: 2rem 1.5rem;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
    overflow-y: auto;
    border-top: 2px solid var(--color-accent);
  }

  .header-nav[data-open] {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 0.25rem;
    width: 100%;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 0.9rem 1rem;
    display: block;
    border-bottom: 1px solid rgba(192, 192, 192, 0.1);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    background: rgba(255, 107, 53, 0.15);
    border-left: 4px solid var(--color-accent);
    color: var(--color-accent);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-bottom: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding-top: 1.2rem;
  }

  .footer-heading::after {
    left: 0;
    transform: none;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 2.5rem 0;
  }

  .back-to-top {
    bottom: 1.2rem;
    right: 1.2rem;
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .brand-text {
    font-size: 1.3rem;
  }

  .brand-icon {
    width: 1.1rem;
    height: 1.1rem;
  }

  .nav-link {
    font-size: 1rem;
    padding: 0.75rem 0.8rem;
  }

  .footer-logo {
    font-size: 1.4rem;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .brand-logo:hover .brand-icon {
    transform: none;
  }

  .back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .back-to-top:hover {
    transform: none;
  }

  .card:hover {
    transform: none;
  }

  .btn:hover {
    transform: none;
  }

  .header-nav {
    transition: none;
  }

  .nav-link::after {
    transition: none;
  }

  .scroll-progress {
    transition: none;
  }
}