/* ============================================================
   LAYOUT — app grid, sidebar, topbar, content, screen routing
   ============================================================ */

/* ---- App shell ---- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  border-right: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(34,28,68,.55), rgba(18,15,38,.2));
  padding: 22px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 6px 8px 18px;
  flex-shrink: 0;
}

.sidebar__logo {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--pink), var(--violet));
  display: grid; place-items: center;
  font-size: 20px;
  box-shadow: 0 8px 24px -6px rgba(255,92,138,.6);
  flex-shrink: 0;
}

.sidebar__name {
  font-size: 18px;
  letter-spacing: .2px;
  display: block;
}
.sidebar__name span { color: var(--pink); }
.sidebar__tagline { display: block; color: var(--faint); font-size: 11px; font-weight: 500; margin-top: 1px; }

.sidebar__label {
  color: var(--faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  padding: 14px 10px 6px;
  display: block;
}

.sidebar__nav { display: contents; }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 12px;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  text-align: left;
  transition: background var(--ease), color var(--ease);
  position: relative;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-btn__icon { width: 20px; text-align: center; font-size: 17px; flex-shrink: 0; }

.nav-btn:hover  { background: var(--surface); color: var(--ink); }

.nav-btn.is-active {
  color: var(--ink);
  background: linear-gradient(90deg, rgba(255,92,138,.18), rgba(155,107,255,.08));
}
.nav-btn.is-active::before {
  content: "";
  position: absolute;
  left: -16px; top: 9px; bottom: 9px;
  width: 3px;
  border-radius: 0 4px 4px 0;
  background: var(--pink);
  box-shadow: 0 0 12px var(--pink);
}

.nav-btn__badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  color: var(--bg);
  background: var(--cyan);
  padding: 1px 7px;
  border-radius: 20px;
  flex-shrink: 0;
}

.sidebar__user {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--surface);
  flex-shrink: 0;
}

.sidebar__user-av {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #FFB36B, #FF6B9D);
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 15px;
  color: var(--bg);
  flex-shrink: 0;
}

.sidebar__user-name   { font-size: 13.5px; font-weight: 700; }
.sidebar__user-status { font-size: 11px; color: var(--green); font-weight: 600; }

/* ---- Main column ---- */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---- Topbar ---- */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  height: var(--topbar-h);
  border-bottom: 1px solid var(--line-soft);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(18,15,38,.82);
  backdrop-filter: blur(12px);
  flex-shrink: 0;
}

.topbar__menu {
  display: none;
  background: transparent;
  border: 0;
  color: var(--ink);
  font-size: 20px;
  padding: 6px;
  border-radius: 8px;
}

.topbar__search {
  flex: 1;
  max-width: 420px;
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 9px 13px;
}
.topbar__search input {
  border: 0;
  background: transparent;
  color: var(--ink);
  width: 100%;
  font-size: 14px;
  outline: none;
}
.topbar__search input::placeholder { color: var(--faint); }

.topbar__wallet {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color var(--ease);
}
.topbar__wallet:hover { border-color: var(--gold); }
.topbar__wallet b   { font-family: var(--font-mono); letter-spacing: .3px; }
.topbar__wallet small { color: var(--faint); font-size: 11px; display: block; line-height: 1; }

.topbar__icon-btn {
  width: 40px; height: 40px;
  border-radius: 11px;
  border: 1px solid var(--line-soft);
  background: var(--surface);
  color: var(--ink);
  font-size: 16px;
  display: grid;
  place-items: center;
  transition: border-color var(--ease);
  flex-shrink: 0;
}
.topbar__icon-btn:hover { border-color: var(--pink); }

.topbar__icon-btn--topup {
  background: linear-gradient(135deg, var(--gold), #FF9F45);
  color: #3A2400;
  border: 0;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 8px 20px -8px rgba(255,200,87,.7);
}
.topbar__icon-btn--topup:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* ---- Content area & screen routing ---- */
.content {
  flex: 1;
  padding: 28px 30px 60px;
  overflow-x: hidden;
}

.screen {
  display: none;
  animation: fade-in .35s ease;
  max-width: 1180px;
}
.screen.is-active { display: block; }

/* ---- Mobile responsive ---- */
@media (max-width: 720px) {
  .app { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-w);
    transform: translateX(-100%);
    transition: transform .25s ease;
    z-index: 50;
  }
  .sidebar.is-open { transform: none; }

  .topbar__menu { display: grid; }

  .content { padding: 18px 16px 60px; }
}

@media (max-width: 520px) {
  .topbar__wallet small { display: none; }
}