/* =========================================================
  BYBITUI — BASE (shared for .bb-home + .bb-site)
  File: assets/css/packs/base.css
========================================================= */

/* Tokens (Bybit-ish) */
:root{
  --bb-bg: #0B0E11;
  --bb-panel: rgba(255,255,255,.04);
  --bb-panel2: rgba(255,255,255,.06);
  --bb-border: rgba(255,255,255,.10);

  --bb-text: rgba(234,236,239,.95);
  --bb-muted: rgba(234,236,239,.70);
  --bb-dim: rgba(234,236,239,.55);

  --bb-yellow: #F7A600;
  --bb-yellow2: #FFD26A;

  --bb-radius: 18px;
  --bb-radius-sm: 14px;
  --bb-pill: 999px;

  --bb-container: 1160px;

  --bb-shadow: 0 10px 26px rgba(0,0,0,.26);
  --bb-focus: 0 0 0 3px rgba(247,166,0,.18), 0 0 0 1px rgba(247,166,0,.55);

  --bb-ease: .14s ease;
}

.bb-home, .bb-site{ 
  font-family: Roboto, "Segoe UI", Arial, system-ui, -apple-system, sans-serif !important;
  font-weight: 500;
  color: var(--bb-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.bb-home *, .bb-site *{ box-sizing: border-box; font-family: inherit !important; }
.bb-home img, .bb-site img{ max-width:100%; height:auto; display:block; }

.bb-container{
  width: min(var(--bb-container), calc(100% - 32px));
  margin: 0 auto;
}

/* LINKS — diệt link xanh + gạch chân của GP trong pack */
.bb-home a:not(.bb-btn):not(.bb-sticky__btn),
.bb-site a:not(.bb-btn):not(.bb-sticky__btn),
.bb-home a:visited:not(.bb-btn):not(.bb-sticky__btn),
.bb-site a:visited:not(.bb-btn):not(.bb-sticky__btn){
  color: inherit !important;
  text-decoration: none !important;
  border-bottom: none !important;
  transition: color var(--bb-ease), opacity var(--bb-ease), transform var(--bb-ease),
              background var(--bb-ease), border-color var(--bb-ease), box-shadow var(--bb-ease);
}

.bb-home a:hover:not(.bb-btn):not(.bb-sticky__btn),
.bb-site a:hover:not(.bb-btn):not(.bb-sticky__btn){
  color: inherit !important;
}
.bb-home a:focus-visible, .bb-site a:focus-visible,
.bb-home button:focus-visible, .bb-site button:focus-visible{
  outline: none;
  box-shadow: var(--bb-focus);
}

/* Chỉ “text link” mới đổi vàng khi hover */
.bb-home a:hover:not(.bb-btn):not(.bb-tile):not(.bb-sticky__btn):not(.bb-lang__a):not(.bb-brand),
.bb-site a:hover:not(.bb-btn):not(.bb-tile):not(.bb-sticky__btn):not(.bb-lang__a):not(.bb-brand){
  color: var(--bb-yellow2) !important;
}

/* Typography */
.bb-h1{
  margin: 0 0 14px;
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 920px;
}
.bb-h2{
  margin: 0 0 14px;
  font-size: 26px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.01em;
}
.bb-h3{
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 900;
}
.bb-sub{
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--bb-muted);
  max-width: 860px;
}
.bb-muted{ color: var(--bb-muted); line-height: 1.65; margin:0; }
.bb-note{ margin: 14px 0 0; color: var(--bb-dim); font-size: 13px; max-width: 980px; }

/* Buttons */
.bb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:52px;
  padding: 0 18px;
  border-radius: var(--bb-pill);
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  cursor:pointer;
  user-select:none;
  will-change: transform;
  transition: transform var(--bb-ease), background var(--bb-ease), color var(--bb-ease),
              border-color var(--bb-ease), box-shadow var(--bb-ease);
}
.bb-btn:hover{ transform: translateY(-1px); }
.bb-btn:active{ transform: translateY(0); }
.bb-btn:focus-visible{ outline:none; box-shadow: var(--bb-focus); }

.bb-btn--primary{
  background: var(--bb-yellow);
  color: #121212 !important;
}
.bb-btn--primary:hover{
  background: var(--bb-yellow2);
  color: #121212 !important;
}

.bb-btn--ghost{
  background: transparent;
  color: var(--bb-text) !important;
  border-color: rgba(255,255,255,.30);
}
.bb-btn--ghost:hover{
  border-color: rgba(247,166,0,.75);
  color: var(--bb-yellow2) !important;
}

/* Sections */
.bb-section{ padding: 46px 0; }
@media (max-width: 720px){
  .bb-section{ padding: 38px 0; }
  .bb-h2{ font-size: 24px; }
  .bb-sub{ font-size: 16px; }
}

/* Row helper */
.bb-row, .bb-cta-row{
  margin-top: 16px;
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* Card */
.bb-card{
  padding: 16px;
  border-radius: var(--bb-radius);
  border: 1px solid var(--bb-border);
  background: var(--bb-panel);
  box-shadow: var(--bb-shadow);
  transition: border-color var(--bb-ease), background var(--bb-ease), box-shadow var(--bb-ease);
}
.bb-card:hover{
  border-color: rgba(255,255,255,.14);
  background: rgba(255,255,255,.045);
}

/* Breadcrumb */
.bb-bc{
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items:center;
  margin: 0 0 10px;
  color: rgba(234,236,239,.70);
  font-size: 13px;
  font-weight: 800;
}
.bb-bc a{ color: rgba(234,236,239,.86) !important; }
.bb-dot{ opacity: .7; }

/* Tiles */
.bb-tiles{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 720px){
  .bb-tiles{ grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1020px){
  .bb-tiles{ grid-template-columns: repeat(3, 1fr); }
}
.bb-tile{
  display:block;
  padding: 16px;
  border-radius: var(--bb-radius);
  border: 1px solid var(--bb-border);
  background: var(--bb-panel2);
  box-shadow: var(--bb-shadow);
  transition: transform var(--bb-ease), border-color var(--bb-ease), background var(--bb-ease), box-shadow var(--bb-ease);
}
.bb-tile:hover{
  background: rgba(255,255,255,.055);
  border-color: rgba(247,166,0,.42);
  box-shadow: 0 14px 30px rgba(0,0,0,.32);
  transform: translateY(-2px);
}
.bb-tile__t{ font-weight: 900; margin-bottom: 6px; }
.bb-tile__d{ color: var(--bb-muted); font-size: 13.5px; line-height: 1.55; }

/* Steps */
.bb-steps{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 900px){
  .bb-steps{ grid-template-columns: repeat(3, 1fr); }
}
.bb-step{
  padding: 16px;
  border-radius: var(--bb-radius);
  border: 1px solid var(--bb-border);
  background: var(--bb-panel);
  box-shadow: var(--bb-shadow);
  min-height: 140px;
}
.bb-step__n{
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight: 900;
  background: rgba(247,166,0,.92);
  color: #121212;
  margin-bottom: 10px;
}

/* FAQ */
.bb-faq{ display:grid; gap:10px; margin-top: 10px; }
.bb-faq__item{
  border-radius: var(--bb-radius);
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  padding: 8px 12px;
  transition: border-color var(--bb-ease), background var(--bb-ease);
}
.bb-faq__item:hover{
  border-color: rgba(247,166,0,.30);
  background: rgba(255,255,255,.04);
}
.bb-faq__q{
  cursor:pointer;
  font-weight: 900;
  padding: 10px 0;
  list-style:none;
}
.bb-faq__q::-webkit-details-marker{ display:none; }
.bb-faq__a{ padding: 0 0 10px; }
.bb-faq__item:hover .bb-faq__q{ color: var(--bb-yellow2); }

/* List (UI bullet – đẹp và đều) */
.bb-list{
  margin: 0;
  padding: 0;
  list-style: none;
  display:grid;
  gap: 10px;
}
.bb-list li{
  position: relative;
  padding-left: 18px;
  color: var(--bb-muted);
  line-height: 1.6;
}
.bb-list li::before{
  content:"";
  position:absolute;
  left:0; top: 0.68em;
  width: 7px; height: 7px;
  border-radius: 999px;
  background: rgba(247,166,0,.75);
  box-shadow: 0 0 0 3px rgba(247,166,0,.10);
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce){
  .bb-btn, .bb-tile, .bb-card, .bb-faq__item{ transition:none; }
}