/* ─── Mint Vault — Layout ───────────────────────────────────── */

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

/* ══ SIDEBAR ══════════════════════════════════════════════════ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--clr-surface);
  border-right: 1px solid var(--clr-border);
  display: flex; flex-direction: column;
  z-index: 500;
  transition: transform var(--transition);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-logo {
  display: flex; align-items: center; gap: 12px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--clr-border);
  flex-shrink: 0;
}
.logo-icon {
  width: 40px; height: 40px; border-radius: 11px;
  background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,200,150,0.35);
}
.logo-icon svg { width: 22px; height: 22px; }
.logo-text {
  font-family: var(--font-display);
  font-weight: 800; font-size: 1.1rem;
  color: var(--clr-text); line-height: 1;
}
.logo-tagline { font-size: 0.7rem; color: var(--clr-text-muted); margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 2px; }
.sidebar-section-label {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--clr-text-faint);
  padding: 14px 10px 6px;
}

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  border-radius: var(--r-md);
  color: var(--clr-text-secondary);
  font-weight: 500; font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  text-decoration: none;
}
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; transition: var(--transition); }
.nav-item:hover { background: var(--clr-card); color: var(--clr-text); }
.nav-item.active {
  background: var(--clr-primary-glow);
  color: var(--clr-primary);
  font-weight: 600;
}
.nav-item.active svg { filter: drop-shadow(0 0 4px rgba(0,200,150,0.5)); }
.nav-item .nav-badge {
  margin-left: auto;
  background: var(--clr-expense);
  color: #fff; font-size: 0.65rem; font-weight: 700;
  padding: 2px 6px; border-radius: var(--r-full);
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--clr-border);
  flex-shrink: 0;
}
.sidebar-user {
  display: flex; align-items: center; gap: 12px;
  padding: 12px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: var(--transition);
}
.sidebar-user:hover { background: var(--clr-card); }
.sidebar-user-info { flex: 1; overflow: hidden; }
.sidebar-user-name { font-weight: 600; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-email { font-size: 0.75rem; color: var(--clr-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ══ MAIN CONTENT ═════════════════════════════════════════════ */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex; flex-direction: column;
}

/* ══ TOPBAR ═══════════════════════════════════════════════════ */
.topbar {
  position: sticky; top: 0;
  height: var(--topbar-h);
  background: rgba(17,24,39,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  display: flex; align-items: center;
  padding: 0 var(--sp-6);
  gap: var(--sp-4);
  z-index: 400;
}
.topbar-title { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: var(--sp-2); }
.topbar-btn {
  width: 38px; height: 38px;
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-text-muted);
  cursor: pointer; transition: var(--transition);
  position: relative;
}
.topbar-btn:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.topbar-btn .dot {
  position: absolute; top: 7px; right: 7px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--clr-expense); border: 1.5px solid var(--clr-surface);
}

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px;
  background: none; border: none; color: var(--clr-text);
}
.hamburger span {
  width: 22px; height: 2px;
  background: currentColor; border-radius: 2px;
  transition: var(--transition);
}

/* Page content area */
.page { padding: var(--sp-6); flex: 1; max-width: 1280px; }
.page-header { margin-bottom: var(--sp-6); }
.page-header h1 { font-size: 1.625rem; }

/* ══ SECTION GRID ═════════════════════════════════════════════ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: var(--sp-5); }

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }

/* ══ MOBILE OVERLAY ═══════════════════════════════════════════ */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(15,23,42,0.7);
  z-index: 499;
}

/* ══ PAGE TRANSITIONS ═════════════════════════════════════════ */
.page-view {
  display: none;
  animation: slide-up 0.3s var(--ease) both;
}
.page-view.active { display: block; }

/* ══ TABS ═════════════════════════════════════════════════════ */
.tabs { display: flex; gap: 4px; background: var(--clr-card); padding: 4px; border-radius: var(--r-md); width: fit-content; }
.tab {
  padding: 8px 18px;
  border-radius: calc(var(--r-md) - 2px);
  color: var(--clr-text-muted);
  font-weight: 500; font-size: 0.875rem;
  cursor: pointer; transition: var(--transition);
  border: none; background: none;
}
.tab.active { background: var(--clr-surface); color: var(--clr-text); font-weight: 600; box-shadow: var(--shadow-sm); }
.tab:hover:not(.active) { color: var(--clr-text); }

/* ══ RESPONSIVE ═══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay { display: block; pointer-events: none; opacity: 0; transition: opacity var(--transition); }
  .sidebar-overlay.open { pointer-events: all; opacity: 1; }
  .main-content { margin-left: 0; }
  .hamburger { display: flex; }
  .page { padding: var(--sp-4); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .col-span-2, .col-span-3 { grid-column: span 1; }
  .topbar { padding: 0 var(--sp-4); }
}