.topbar{
  background: linear-gradient(135deg, rgba(91,61,245,0.10), rgba(122,92,255,0.06));
  border-bottom: 1px solid rgba(91,61,245,0.18);
}

.topbar__inner{
  min-height: 44px;
  display:flex;
  align-items:center;
  gap: 10px;
  justify-content: space-between;
  padding: 10px 0;
}

.topbar__dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(91,61,245,0.95);
  box-shadow: 0 10px 18px rgba(91,61,245,0.22);
  flex: 0 0 auto;
}

.topbar__text{
  color: rgba(15,18,34,0.70);
  font-weight: 600;
  font-size: 12.5px;
  flex: 1 1 auto;
}

.topbar__link{
  font-size: 12.5px;
  font-weight: 800;
  text-decoration: none;
  color: rgba(91,61,245,0.95);
}

.topbar__link:hover{
  text-decoration: underline;
}

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: var(--t);
}

.header[data-elevated="true"]{
  border-bottom-color: var(--line);
}

.header__inner{
  min-height: 78px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
}

/* Brand */
.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  text-decoration: none;
  min-width: 240px;
}

.brand__mark{
  width: 52px;
  height: 52px;
  border-radius: 14px;
  object-fit: cover;
  display: block;
}

.brand__name{
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: 15px;
}

.brand__sub{
  display:block;
  font-size: 11px;
  color: var(--muted);
  font-weight: 700;
}

/* Nav */
.nav{
  display: none;
  align-items: center;
  gap: 18px;
}

.nav__sheet{
  display: contents;
}

.nav__sheetHead{
  display: none;
}

.nav__sheetTitle{
  font-size: 13px;
  font-weight: 900;
  color: rgba(15,18,34,0.52);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav__link{
  text-decoration: none;
  font-weight: 800;
  color: rgba(15,18,34,0.82);
  transition: var(--t);
  padding: 10px 10px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
}

.nav__link:hover{
  color: rgba(91,61,245,0.95);
  background: rgba(91,61,245,0.06);
}

.nav__link.is-active{
  color: rgba(91,61,245,0.95);
}

.nav__drop{
  position: relative;
}

.nav__dropBtn{
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: auto;
}

.nav__caret{
  font-size: 12px;
  opacity: 0.7;
  transform: translateY(-1px);
}

.nav__menu{
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 270px;
  background: rgba(255,255,255,0.94);
  border: 1px solid rgba(15,18,34,0.12);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 10px;
  display: grid;
  gap: 6px;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: var(--t);
  z-index: 30;
}

.nav__menuItem{
  text-decoration: none;
  font-weight: 800;
  color: rgba(15,18,34,0.82);
  padding: 11px 10px;
  border-radius: 12px;
}

.nav__menuItem:hover{
  background: rgba(91,61,245,0.08);
  color: rgba(91,61,245,0.95);
}

.nav__drop:hover .nav__menu,
.nav__drop:focus-within .nav__menu,
.nav__drop.is-open .nav__menu{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Header actions */
.header__actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap: 10px;
  width: 260px;
}

@media (min-width: 981px){
  .header__actions .btn{
    visibility: hidden;
    pointer-events: none;
  }
}

/* Burger */
.burger{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.8);
  cursor: pointer;
  transition: var(--t);
}

.burger:hover{
  border-color: rgba(91,61,245,0.35);
}

.burger__lines{
  width: 20px;
  height: 2px;
  background: rgba(15,18,34,0.90);
  position: relative;
  display:block;
}

.burger__lines::before,
.burger__lines::after{
  content:"";
  width: 20px;
  height: 2px;
  background: rgba(15,18,34,0.90);
  position:absolute;
  left: 0;
}

.burger__lines::before{ top: -6px; }
.burger__lines::after{ top: 6px; }

/* Close button */
.nav__close{
  display: none;
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(15,18,34,0.12);
  border-radius: 14px;
  background: rgba(255,255,255,0.92);
  cursor: pointer;
  transition: var(--t);
  flex: 0 0 auto;
}

.nav__close:hover{
  border-color: rgba(91,61,245,0.35);
  background: rgba(91,61,245,0.06);
}

.nav__close span,
.nav__close span::before{
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: rgba(15,18,34,0.86);
}

.nav__close span{
  transform: translate(-50%, -50%) rotate(45deg);
}

.nav__close span::before{
  transform: translate(-50%, -50%) rotate(90deg);
}

/* Mobile nav */
@media (max-width: 980px){
  .nav{
    position: fixed;
    inset: 0;
    z-index: 999;
    display: none;
    background: rgba(15,18,34,0.34);
    backdrop-filter: blur(8px);
    padding: 92px 16px 16px;
    align-items: flex-start;
    justify-content: center;
  }

  .nav.is-open{
    display: flex;
  }

  .nav__sheet{
    width: min(360px, 100%);
    max-height: calc(100dvh - 116px);
    overflow: auto;

    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(15,18,34,0.10);
    border-radius: 24px;
    box-shadow: 0 24px 80px rgba(15,18,34,0.18);
    backdrop-filter: blur(18px);

    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .nav__sheetHead{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 2px 2px 10px;
    margin-bottom: 4px;
  }

  .nav__close{
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav__link,
  .nav__dropBtn{
    width: 100%;
    min-height: 48px;
    padding: 12px 12px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    font-size: 17px;
    text-align: left;
  }

  .nav__drop{
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .nav__dropBtn{
    justify-content: space-between;
  }

  .nav__menu{
    position: static;
    min-width: 0;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    border: 0;
    box-shadow: none;
    background: rgba(15,18,34,0.035);
    border-radius: 16px;
    padding: 8px;
    gap: 4px;
    display: none;
    margin-top: 0;
  }

  .nav__drop.is-open .nav__menu{
    display: grid;
  }

  .nav__menuItem{
    padding: 11px 12px;
    border-radius: 12px;
    background: transparent;
    font-size: 15px;
  }
}

/* Desktop nav */
@media (min-width: 981px){
  .nav{
    display:flex;
    position: static;
    inset: auto;
    background: none;
    backdrop-filter: none;
    padding: 0;
    opacity: 1;
    pointer-events: auto;
    z-index: auto;
  }

  .nav__sheet{
    display: flex;
    align-items: center;
    gap: 18px;
    width: auto;
    min-height: auto;
    background: transparent;
    padding: 0;
    overflow: visible;
  }

  .nav__drop{
    padding-bottom: 10px;
    margin-bottom: -10px;
  }

  .burger{
    display:none;
  }
}

@media (max-width: 720px){
  .topbar__inner{
    flex-wrap: wrap;
  }
}

@media (max-width: 520px){
  .brand{
    min-width: 0;
    gap: 10px;
  }

  .brand__name{
    font-size: 14px;
  }

  .brand__sub{
    font-size: 10px;
  }

  .header__actions .btn{
    display: none;
  }
}