*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;font-size:1rem;line-height:1.6;color:#1D1D2A;background:#FFFFFF;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
:focus-visible{outline:2px solid #E63946;outline-offset:2px}
@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}}

:root{
  --color-primary:#E63946;
  --color-primary-light:#FF6B6B;
  --color-primary-gradient:linear-gradient(135deg,#E63946,#FF6B6B);
  --color-dark:#1D1D2A;
  --color-dark-card:#2C2C3A;
  --color-accent:#00FF88;
  --color-white:#FFFFFF;
  --color-light-gray:#F0F0F0;
  --color-medium-gray:#888888;
  --color-dark-gray:#2C2C3A;
  --color-border:rgba(255,255,255,0.08);
  --font-heading:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Fira Code","Consolas","Courier New",monospace;
  --max-width:1200px;
  --header-height:68px;
  --radius-sm:4px;
  --radius-md:8px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover:0 8px 24px rgba(0,0,0,0.12);
  --transition-fast:0.2s ease;
  --transition-smooth:0.35s cubic-bezier(0.25,0.46,0.45,0.94)
}

.skip-link{
  position:absolute;top:-100%;left:1rem;z-index:9999;
  padding:0.5rem 1rem;background:#E63946;color:#FFFFFF;
  font-family:var(--font-heading);font-weight:600;font-size:0.875rem;
  border-radius:0 0 var(--radius-sm) var(--radius-sm);
  transition:top var(--transition-fast)
}
.skip-link:focus{top:0}

.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--color-dark);color:var(--color-white);
  border-bottom:1px solid var(--color-border);
  min-height:var(--header-height)
}
.site-header::after{
  content:'';position:absolute;bottom:-1px;left:0;right:0;
  height:3px;
  background:var(--color-primary-gradient);
  clip-path:polygon(0 0,100% 0,98% 100%,2% 100%)
}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:var(--max-width);margin:0 auto;
  padding:0 1.5rem;height:var(--header-height);gap:1rem
}
.header__brand{display:flex;align-items:center;gap:0.5rem;flex-shrink:0}
.header__logo{
  font-family:var(--font-heading);font-weight:800;font-size:1.25rem;
  color:var(--color-white);letter-spacing:-0.02em;
  transition:color var(--transition-fast)
}
.header__logo:hover,.header__logo:focus-visible{color:var(--color-primary)}
.header__divider{color:var(--color-primary);font-weight:300;font-size:1.1rem;user-select:none}
.header__tagline{
  font-family:var(--font-mono);font-size:0.75rem;color:var(--color-medium-gray);
  letter-spacing:0.03em;white-space:nowrap;display:none
}
@media(min-width:768px){.header__tagline{display:inline}}
.header__nav{display:none}
@media(min-width:900px){.header__nav{display:flex;align-items:center}}
.header__nav[data-open]{display:flex}
.nav__list{
  display:flex;align-items:center;gap:0.25rem;
  font-family:var(--font-heading);font-weight:600;font-size:0.875rem
}
.nav__list a{
  display:flex;align-items:center;gap:0.35rem;
  padding:0.5rem 0.75rem;border-radius:var(--radius-sm);
  color:rgba(255,255,255,0.75);white-space:nowrap;
  transition:color var(--transition-fast),background var(--transition-fast)
}
.nav__list a:hover,.nav__list a:focus-visible{color:var(--color-white);background:rgba(255,255,255,0.06)}
.nav__list a[aria-current="page"]{color:var(--color-primary);background:rgba(230,57,70,0.1)}
.nav__index{
  font-family:var(--font-mono);font-size:0.65rem;font-weight:400;
  color:var(--color-medium-gray);opacity:0.7
}
.nav__list a[aria-current="page"] .nav__index{color:var(--color-primary);opacity:1}

.header__toggle{
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  gap:4px;width:36px;height:36px;
  background:transparent;border:none;cursor:pointer;
  padding:6px;border-radius:var(--radius-sm);
  transition:background var(--transition-fast)
}
@media(min-width:900px){.header__toggle{display:none}}
.header__toggle:hover,.header__toggle:focus-visible{background:rgba(255,255,255,0.06)}
.toggle__bar{
  display:block;width:22px;height:2px;
  background:var(--color-white);border-radius:2px;
  transition:transform var(--transition-smooth),opacity var(--transition-smooth)
}
.header__toggle[aria-expanded="true"] .toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.header__toggle[aria-expanded="true"] .toggle__bar:nth-child(2){opacity:0}
.header__toggle[aria-expanded="true"] .toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:899px){
  .header__nav{
    position:absolute;top:var(--header-height);left:0;right:0;
    background:var(--color-dark);
    border-bottom:1px solid var(--color-border);
    padding:0.75rem 1.5rem 1rem;
    display:none;flex-direction:column;
    box-shadow:0 8px 24px rgba(0,0,0,0.3)
  }
  .header__nav[data-open]{display:flex}
  .nav__list{flex-direction:column;align-items:stretch;gap:0.125rem;width:100%}
  .nav__list a{padding:0.625rem 0.75rem;justify-content:flex-start;font-size:0.95rem}
}

.page-container{
  max-width:var(--max-width);margin:0 auto;
  padding:2rem 1.5rem 3rem
}
@media(min-width:768px){.page-container{padding:3rem 2rem 4rem}}

.section-title{
  display:flex;align-items:baseline;gap:1rem;
  margin-bottom:2rem;padding-bottom:0.75rem;
  border-bottom:1px solid var(--color-light-gray)
}
.section__number{
  font-family:var(--font-heading);font-weight:800;font-size:2.5rem;
  color:var(--color-primary);line-height:1;letter-spacing:-0.03em
}
.section__heading{
  font-family:var(--font-heading);font-weight:700;font-size:1.5rem;
  color:var(--color-dark);line-height:1.2
}
@media(min-width:768px){
  .section__number{font-size:3.5rem}
  .section__heading{font-size:1.75rem}
}

.grid-bento{
  display:grid;grid-template-columns:1fr;
  gap:1rem;margin-bottom:2rem
}
@media(min-width:600px){.grid-bento{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){
  .grid-bento{grid-template-columns:repeat(4,1fr);grid-auto-rows:auto}
  .grid-bento .data-card:nth-child(1){grid-column:1/3;grid-row:span 2}
  .grid-bento .data-card:nth-child(4){grid-column:3/5}
  .grid-bento .data-card:nth-child(5){grid-column:1/3}
  .grid-bento .data-card:nth-child(6){grid-column:3/5}
}

.data-card{
  background:var(--color-white);border:1px solid var(--color-light-gray);
  border-radius:var(--radius-md);padding:1.25rem;
  box-shadow:var(--shadow-card);
  transition:transform var(--transition-smooth),box-shadow var(--transition-smooth);
  display:flex;flex-direction:column;gap:0.5rem
}
.data-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.data-card__label{
  font-family:var(--font-mono);font-size:0.7rem;
  color:var(--color-medium-gray);text-transform:uppercase;letter-spacing:0.05em
}
.data-card__value{
  font-family:var(--font-heading);font-weight:800;font-size:1.75rem;
  color:var(--color-dark);line-height:1.1
}
.data-card__value .highlight{color:var(--color-primary)}
.data-card__value .accent{color:var(--color-accent)}
.data-card__desc{
  font-family:var(--font-mono);font-size:0.8rem;
  color:var(--color-medium-gray);line-height:1.5
}
.data-card--dark{background:var(--color-dark);border-color:var(--color-dark-card);color:var(--color-white)}
.data-card--dark .data-card__label{color:rgba(255,255,255,0.5)}
.data-card--dark .data-card__value{color:var(--color-white)}
.data-card--dark .data-card__desc{color:rgba(255,255,255,0.6)}

.skew-bar{
  display:block;height:4px;width:100%;
  background:var(--color-primary-gradient);
  clip-path:polygon(0 0,100% 0,97% 100%,3% 100%);
  margin:1.5rem 0
}

.tag-group{
  display:flex;flex-wrap:wrap;gap:0.5rem;margin:0.75rem 0
}
.tag-item{
  font-family:var(--font-mono);font-size:0.75rem;
  padding:0.3rem 0.75rem;border:1px solid var(--color-light-gray);
  border-radius:20px;background:var(--color-white);
  color:var(--color-medium-gray);cursor:pointer;
  transition:all var(--transition-fast)
}
.tag-item:hover,.tag-item:focus-visible{border-color:var(--color-primary);color:var(--color-primary)}
.tag-item[data-active]{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-white)}

.data-highlight{color:var(--color-accent);font-weight:700}

.scroll-progress{
  position:fixed;top:0;left:0;z-index:9999;
  width:0%;height:3px;
  background:var(--color-primary-gradient);
  transition:width 0.1s linear;
  pointer-events:none
}
@media(prefers-reduced-motion:reduce){.scroll-progress{transition:none}}

.back-to-top{
  position:fixed;bottom:2rem;right:2rem;z-index:999;
  width:44px;height:44px;border-radius:50%;
  background:var(--color-dark);border:1px solid var(--color-border);
  color:var(--color-white);font-size:1.25rem;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;
  transform:translateY(12px);
  transition:opacity var(--transition-smooth),transform var(--transition-smooth),visibility var(--transition-smooth),background var(--transition-fast);
  box-shadow:0 4px 12px rgba(0,0,0,0.2)
}
.back-to-top:hover,.back-to-top:focus-visible{background:var(--color-primary);transform:translateY(0) scale(1.05)}
.back-to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
@media(prefers-reduced-motion:reduce){.back-to-top{transition:none}}

.site-footer{
  background:var(--color-dark);color:rgba(255,255,255,0.85);
  border-top:3px solid transparent;
  border-image:linear-gradient(135deg,#E63946,#FF6B6B) 1;
  padding:3rem 1.5rem 1.5rem;margin-top:3rem
}
.footer__inner{max-width:var(--max-width);margin:0 auto}
.footer__brand{margin-bottom:2rem}
.footer__logo{
  font-family:var(--font-heading);font-weight:800;font-size:1.35rem;
  color:var(--color-white);letter-spacing:-0.02em
}
.footer__logo:hover,.footer__logo:focus-visible{color:var(--color-primary)}
.footer__subtitle{
  font-family:var(--font-mono);font-size:0.8rem;
  color:var(--color-medium-gray);margin-top:0.25rem
}
.footer__trust{
  font-family:var(--font-mono);font-size:0.7rem;
  color:rgba(255,255,255,0.4);line-height:1.6;
  margin-top:0.75rem;max-width:480px
}
.footer__columns{
  display:grid;grid-template-columns:1fr;
  gap:1.5rem;margin-bottom:2rem
}
@media(min-width:600px){.footer__columns{grid-template-columns:repeat(3,1fr)}}
.footer__heading{
  font-family:var(--font-heading);font-weight:700;font-size:0.8rem;
  color:var(--color-primary);text-transform:uppercase;
  letter-spacing:0.08em;margin-bottom:0.75rem
}
.footer__list{display:flex;flex-direction:column;gap:0.4rem}
.footer__list a{
  font-family:var(--font-mono);font-size:0.8rem;
  color:rgba(255,255,255,0.7);
  transition:color var(--transition-fast)
}
.footer__list a:hover,.footer__list a:focus-visible{color:var(--color-primary)}
.footer__contact-item{
  font-family:var(--font-mono);font-size:0.78rem;
  color:rgba(255,255,255,0.65);margin-bottom:0.35rem;
  line-height:1.5
}
.footer__contact-item a{color:var(--color-accent)}
.footer__contact-item a:hover{text-decoration:underline}
.footer__bottom{
  border-top:1px solid var(--color-border);
  padding-top:1.25rem;margin-top:0.5rem;
  display:flex;flex-wrap:wrap;gap:0.75rem 1.5rem;
  align-items:center
}
.footer__copyright{
  font-family:var(--font-mono);font-size:0.7rem;
  color:rgba(255,255,255,0.4)
}
.footer__icp{
  font-family:var(--font-mono);font-size:0.7rem;
  color:rgba(255,255,255,0.3)
}

.btn{
  display:inline-flex;align-items:center;gap:0.5rem;
  font-family:var(--font-heading);font-weight:700;font-size:0.875rem;
  padding:0.625rem 1.25rem;border-radius:var(--radius-sm);
  border:none;cursor:pointer;
  transition:background var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);
  text-transform:uppercase;letter-spacing:0.04em
}
.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}
.btn--primary{background:var(--color-primary);color:var(--color-white)}
.btn--primary:hover{background:var(--color-primary-light);transform:translateY(-1px);box-shadow:0 4px 12px rgba(230,57,70,0.3)}
.btn--ghost{background:transparent;color:var(--color-white);border:1px solid rgba(255,255,255,0.2)}
.btn--ghost:hover{background:rgba(255,255,255,0.06);border-color:var(--color-primary);color:var(--color-primary)}

@media(max-width:599px){
  .header__inner{padding:0 1rem}
  .header__logo{font-size:1.1rem}
  .footer__columns{gap:1.25rem}
  .back-to-top{bottom:1.25rem;right:1.25rem;width:40px;height:40px}
  .page-container{padding:1.5rem 1rem 2.5rem}
}

@media(min-width:600px)and(max-width:899px){
  .page-container{padding:2rem 1.5rem 3rem}
}