/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;border:0;font:inherit;vertical-align:baseline}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}
body{min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img,picture,video,canvas,svg{display:block;max-width:100%}
ul,ol{list-style:none}
a{text-decoration:none;color:inherit}
button{cursor:pointer;background:none;border:none;font:inherit}
input,textarea,select{font:inherit;border:1px solid;border-radius:0}
table{border-collapse:collapse;border-spacing:0}
:focus{outline:none}
:focus-visible{outline:2px solid #FF6B35;outline-offset:2px;border-radius:2px}

/* ===== CSS VARIABLES ===== */
:root{
  --c-grad-start:#00D4AA;
  --c-grad-end:#3B82F6;
  --c-accent:#FF6B35;
  --c-silver:#C0C0C0;
  --c-dark:#0B1120;
  --c-light:#F8FAFC;
  --c-text:#1E293B;
  --c-text-dark:#E2E8F0;
  --c-border:rgba(192,192,192,0.3);
  --font-heading:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-body:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SF Mono","Fira Code","Cascadia Code","JetBrains Mono",Consolas,monospace;
  --fw-heading:800;
  --fw-body:400;
  --fw-data:500;
  --radius:8px;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:0 8px 32px rgba(0,0,0,0.12);
  --transition:0.3s cubic-bezier(0.4,0,0.2,1);
  --max-w:1200px;
  --header-h:72px;
  --space-xs:4px;
  --space-sm:8px;
  --space-md:16px;
  --space-lg:32px;
  --space-xl:64px;
  --space-2xl:96px
}
@media(prefers-reduced-motion:reduce){
  :root{--transition:0s}
  html{scroll-behavior:auto}
}

/* ===== TYPOGRAPHY ===== */
body{font-family:var(--font-body);font-weight:var(--fw-body);color:var(--c-text);background:var(--c-light);font-size:16px;line-height:1.7}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:var(--fw-heading);line-height:1.25;letter-spacing:-0.02em}
h1{font-size:clamp(2.2rem,6vw,3.8rem)}
h2{font-size:clamp(1.6rem,4vw,2.8rem)}
h3{font-size:clamp(1.2rem,2.5vw,1.8rem)}
h4{font-size:clamp(1rem,1.8vw,1.3rem)}
p{max-width:72ch}
small,.text-small{font-size:0.875rem}
.mono{font-family:var(--font-mono);font-weight:var(--fw-data)}
.text-accent{color:var(--c-accent)}
.text-gradient{background:linear-gradient(135deg,var(--c-grad-start),var(--c-grad-end));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ===== UTILITY ===== */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;top:-100%;left:0;z-index:9999;padding:12px 24px;background:var(--c-accent);color:#fff;font-weight:700;border-radius:0 0 4px 0;transition:top 0.2s}
.skip-link:focus{top:0;outline:none}
.container{max-width:var(--max-w);margin:0 auto;padding:0 var(--space-lg)}
.section{padding:var(--space-2xl) 0}
@media(max-width:768px){.section{padding:var(--space-xl) 0}.container{padding:0 var(--space-md)}}

/* ===== HEADER ===== */
[data-header]{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  height:var(--header-h);
  background:transparent;
  transition:background var(--transition),box-shadow var(--transition);
  pointer-events:none
}
[data-header] *{pointer-events:auto}
[data-header][data-scrolled]{
  background:var(--c-dark);
  box-shadow:0 2px 24px rgba(0,0,0,0.3)
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 var(--space-lg);
  height:100%;
  position:relative
}
.header__logo{
  display:flex;
  align-items:baseline;
  gap:2px;
  flex-shrink:0;
  z-index:1002
}
.header__logo-text{
  font-family:var(--font-heading);
  font-weight:var(--fw-heading);
  font-size:1.5rem;
  background:linear-gradient(135deg,var(--c-grad-start),var(--c-grad-end));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  letter-spacing:-0.03em
}
.header__logo-badge{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.7rem;
  color:var(--c-silver);
  letter-spacing:0.08em;
  text-transform:uppercase;
  -webkit-text-fill-color:var(--c-silver);
  margin-left:2px;
  padding:2px 6px;
  border:1px solid var(--c-silver);
  border-radius:2px;
  line-height:1.2
}
[data-header][data-scrolled] .header__logo-badge{
  border-color:rgba(192,192,192,0.5)
}
.header__nav{
  display:flex;
  align-items:center
}
.header__nav-list{
  display:flex;
  gap:var(--space-lg)
}
.header__nav-list a{
  font-family:var(--font-body);
  font-weight:500;
  font-size:0.95rem;
  color:rgba(255,255,255,0.85);
  padding:var(--space-xs) 0;
  position:relative;
  transition:color var(--transition);
  white-space:nowrap
}
.header__nav-list a::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;
  width:0;
  height:2px;
  background:linear-gradient(90deg,var(--c-grad-start),var(--c-grad-end));
  transition:width var(--transition);
  border-radius:1px
}
.header__nav-list a:hover{color:#fff}
.header__nav-list a:hover::after{width:100%}
.header__nav-list a[aria-current="page"]{
  color:#fff
}
.header__nav-list a[aria-current="page"]::after{
  width:100%;
  background:var(--c-accent)
}
[data-header][data-scrolled] .header__nav-list a{
  color:var(--c-text-dark)
}
[data-header][data-scrolled] .header__nav-list a:hover,
[data-header][data-scrolled] .header__nav-list a[aria-current="page"]{
  color:#fff
}
.header__actions{
  display:flex;
  align-items:center;
  gap:var(--space-md);
  z-index:1002
}
.header__phone{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.9rem;
  color:var(--c-silver);
  padding:6px 16px;
  border:1px solid rgba(192,192,192,0.3);
  border-radius:20px;
  transition:border-color var(--transition),color var(--transition);
  white-space:nowrap;
  letter-spacing:0.02em
}
.header__phone:hover{
  border-color:var(--c-accent);
  color:var(--c-accent)
}
[data-header][data-scrolled] .header__phone{
  border-color:rgba(192,192,192,0.2);
  color:var(--c-text-dark)
}
[data-header][data-scrolled] .header__phone:hover{
  border-color:var(--c-accent);
  color:var(--c-accent)
}
.header__nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:44px;
  height:44px;
  gap:5px;
  background:transparent;
  border:none;
  cursor:pointer;
  z-index:1002
}
.toggle-bar{
  display:block;
  width:26px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform var(--transition),opacity var(--transition)
}
[data-nav-toggle][aria-expanded="true"] .toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg)
}
[data-nav-toggle][aria-expanded="true"] .toggle-bar:nth-child(2){
  opacity:0
}
[data-nav-toggle][aria-expanded="true"] .toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg)
}
.header__progress{
  position:absolute;
  bottom:0;
  left:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-grad-start),var(--c-grad-end),var(--c-accent));
  width:0;
  transition:width 0.1s linear;
  border-radius:0 2px 2px 0;
  pointer-events:none;
  z-index:1001
}
[data-header][data-scrolled] .header__progress{
  opacity:1
}
@media(prefers-reduced-motion:reduce){
  .header__progress{display:none}
}

/* ===== MOBILE NAV ===== */
@media(max-width:900px){
  .header__nav-toggle{display:flex}
  .header__phone{display:none}
  .header__nav{
    position:fixed;
    top:0;
    left:0;
    right:0;
    bottom:0;
    background:var(--c-dark);
    flex-direction:column;
    justify-content:center;
    align-items:center;
    opacity:0;
    visibility:hidden;
    transition:opacity var(--transition),visibility var(--transition);
    z-index:1001
  }
  .header__nav[data-open]{
    opacity:1;
    visibility:visible
  }
  .header__nav-list{
    flex-direction:column;
    align-items:center;
    gap:var(--space-lg)
  }
  .header__nav-list a{
    font-size:1.4rem;
    color:var(--c-text-dark)
  }
  .header__nav-list a[aria-current="page"]{
    color:var(--c-accent)
  }
  .header__nav-list a::after{display:none}
}
@media(max-width:480px){
  .header__logo-text{font-size:1.25rem}
  .header__logo-badge{font-size:0.6rem}
  .header__inner{padding:0 var(--space-md)}
}

/* ===== FOOTER ===== */
[data-footer]{
  background:linear-gradient(160deg,var(--c-dark) 0%,#0d1a2d 60%,#0f1f3a 100%);
  color:var(--c-text-dark);
  border-top:3px solid;
  border-image:linear-gradient(90deg,var(--c-grad-start),var(--c-grad-end),var(--c-accent)) 1;
  padding:var(--space-2xl) 0 0
}
.footer__inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 var(--space-lg);
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:var(--space-xl)
}
.footer__col{min-width:0}
.footer__logo{
  font-family:var(--font-heading);
  font-weight:var(--fw-heading);
  font-size:1.6rem;
  background:linear-gradient(135deg,var(--c-grad-start),var(--c-grad-end));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:var(--space-sm);
  letter-spacing:-0.02em
}
.footer__desc{
  font-size:0.95rem;
  line-height:1.7;
  color:rgba(226,232,240,0.7);
  margin-bottom:var(--space-md);
  max-width:36ch
}
.footer__trust{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.8rem;
  color:var(--c-accent);
  padding:var(--space-sm) var(--space-md);
  border-left:3px solid var(--c-accent);
  background:rgba(255,107,53,0.08);
  border-radius:0 4px 4px 0;
  line-height:1.5
}
.footer__heading{
  font-family:var(--font-heading);
  font-weight:var(--fw-heading);
  font-size:1rem;
  color:#fff;
  margin-bottom:var(--space-md);
  letter-spacing:0.04em;
  text-transform:uppercase;
  opacity:0.9
}
.footer__nav-list,
.footer__contact-list,
.footer__legal-list{
  display:flex;
  flex-direction:column;
  gap:var(--space-sm)
}
.footer__nav-list a,
.footer__legal-list a{
  color:rgba(226,232,240,0.7);
  font-size:0.9rem;
  transition:color var(--transition),padding-left var(--transition);
  padding-left:0
}
.footer__nav-list a:hover,
.footer__legal-list a:hover{
  color:var(--c-grad-start);
  padding-left:4px
}
.footer__contact-list li{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-size:0.9rem;
  color:rgba(226,232,240,0.7)
}
.contact-label{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.7rem;
  color:var(--c-silver);
  text-transform:uppercase;
  letter-spacing:0.06em
}
.footer__contact-list a{
  color:rgba(226,232,240,0.85);
  transition:color var(--transition)
}
.footer__contact-list a:hover{color:var(--c-grad-start)}
.footer__icp{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.75rem;
  color:rgba(192,192,192,0.5);
  margin-top:var(--space-md);
  letter-spacing:0.02em
}
.footer__bottom{
  margin-top:var(--space-xl);
  border-top:1px solid rgba(192,192,192,0.1);
  padding:var(--space-md) var(--space-lg);
  text-align:center
}
.footer__bottom p{
  font-size:0.8rem;
  color:rgba(226,232,240,0.4);
  max-width:none;
  margin:0 auto
}
@media(max-width:900px){
  .footer__inner{
    grid-template-columns:1fr 1fr;
    gap:var(--space-lg)
  }
  .footer__brand{grid-column:1/-1}
  .footer__desc{max-width:none}
}
@media(max-width:600px){
  .footer__inner{
    grid-template-columns:1fr;
    gap:var(--space-lg);
    padding:0 var(--space-md)
  }
  .footer__bottom{padding:var(--space-md)}
  [data-footer]{padding:var(--space-xl) 0 0}
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--space-sm);
  font-family:var(--font-body);
  font-weight:600;
  font-size:0.95rem;
  padding:12px 28px;
  border-radius:var(--radius);
  background:linear-gradient(135deg,var(--c-grad-start),var(--c-grad-end));
  color:#fff;
  transition:transform var(--transition),box-shadow var(--transition),filter var(--transition);
  border:none;
  cursor:pointer;
  text-align:center;
  line-height:1.2
}
.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(0,212,170,0.3);
  filter:brightness(1.05)
}
.btn:active{transform:translateY(0)}
.btn--outline{
  background:transparent;
  color:var(--c-text-dark);
  border:1.5px solid var(--c-silver);
  box-shadow:none
}
.btn--outline:hover{
  border-color:var(--c-accent);
  color:var(--c-accent);
  box-shadow:0 4px 16px rgba(255,107,53,0.15);
  filter:none
}
.btn--accent{
  background:var(--c-accent);
  color:#fff
}
.btn--accent:hover{
  box-shadow:0 8px 24px rgba(255,107,53,0.35);
  filter:brightness(1.08)
}
.btn--sm{padding:8px 18px;font-size:0.85rem}
.btn--lg{padding:16px 36px;font-size:1.1rem}
@media(prefers-reduced-motion:reduce){
  .btn:hover{transform:none}
}

/* ===== BREADCRUMB ===== */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:var(--space-sm);
  font-size:0.85rem;
  color:rgba(30,41,59,0.6);
  padding:var(--space-md) 0
}
.breadcrumb a{
  color:var(--c-text);
  transition:color var(--transition)
}
.breadcrumb a:hover{color:var(--c-grad-end)}
.breadcrumb .sep{
  color:var(--c-silver);
  font-family:var(--font-mono);
  font-weight:var(--fw-data)
}
.breadcrumb [aria-current="page"]{
  color:var(--c-accent);
  font-weight:600
}

/* ===== CARD ===== */
.card{
  background:#fff;
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:var(--space-lg);
  transition:transform var(--transition),box-shadow var(--transition);
  border:1px solid var(--c-border)
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md)
}
.card--dark{
  background:var(--c-dark);
  color:var(--c-text-dark);
  border-color:rgba(192,192,192,0.1)
}
.card--dark:hover{box-shadow:0 8px 32px rgba(0,0,0,0.4)}
.card__title{
  font-family:var(--font-heading);
  font-weight:var(--fw-heading);
  font-size:1.2rem;
  margin-bottom:var(--space-sm)
}
.card__meta{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.8rem;
  color:var(--c-silver)
}
@media(prefers-reduced-motion:reduce){
  .card:hover{transform:none}
}

/* ===== TAG ===== */
.tag{
  display:inline-flex;
  align-items:center;
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.7rem;
  padding:2px 10px;
  border-radius:12px;
  text-transform:uppercase;
  letter-spacing:0.06em;
  line-height:1.6
}
.tag--live{background:rgba(255,107,53,0.15);color:var(--c-accent);border:1px solid rgba(255,107,53,0.3)}
.tag--data{background:rgba(0,212,170,0.12);color:var(--c-grad-start);border:1px solid rgba(0,212,170,0.25)}
.tag--silver{background:rgba(192,192,192,0.1);color:var(--c-silver);border:1px solid rgba(192,192,192,0.2)}

/* ===== FRAME VIEW ===== */
.frame-view{
  position:relative;
  padding:var(--space-xl);
  border:2px solid var(--c-border);
  border-radius:var(--radius);
  background:rgba(255,255,255,0.02);
  backdrop-filter:blur(2px);
  min-height:320px;
  display:flex;
  flex-direction:column;
  justify-content:center
}
.frame-view::before{
  content:'';
  position:absolute;
  top:-2px;
  left:20%;
  right:20%;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--c-grad-start),var(--c-grad-end),transparent)
}
.frame-view__label{
  font-family:var(--font-mono);
  font-weight:var(--fw-data);
  font-size:0.7rem;
  color:var(--c-silver);
  letter-spacing:0.1em;
  text-transform:uppercase;
  margin-bottom:var(--space-md)
}
@media(max-width:768px){
  .frame-view{padding:var(--space-lg)}
}

/* ===== PROGRESS BAR ===== */
.progress-bar{
  width:100%;
  height:6px;
  background:rgba(192,192,192,0.15);
  border-radius:3px;
  overflow:hidden
}
.progress-bar__fill{
  height:100%;
  background:linear-gradient(90deg,var(--c-grad-start),var(--c-grad-end));
  border-radius:3px;
  transition:width 0.4s ease
}

/* ===== GRID HELPERS ===== */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg)}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-lg)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
}
@media(max-width:600px){
  .grid-3,.grid-4{grid-template-columns:1fr}
}

/* ===== MISC ===== */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.italic{font-style:italic}
.text-center{text-align:center}
.mt-sm{margin-top:var(--space-sm)}
.mt-md{margin-top:var(--space-md)}
.mt-lg{margin-top:var(--space-lg)}
.mt-xl{margin-top:var(--space-xl)}
.mb-sm{margin-bottom:var(--space-sm)}
.mb-md{margin-bottom:var(--space-md)}
.mb-lg{margin-bottom:var(--space-lg)}
.mb-xl{margin-bottom:var(--space-xl)}

/* ===== ACCESSIBLE REDUCED MOTION ===== */
@media(prefers-reduced-motion:reduce){
  *,.btn,.card,.header__progress,.toggle-bar,.header__nav{transition-duration:0s!important;animation-duration:0s!important}
}