/* ========================================
   ExpenseIQ — Premium Layout Stylesheet
   ======================================== */

.app {
  display: flex;
  min-height: 100vh;
  position: relative;
  background-color: transparent;
  z-index: 1;
}

/* ═══ SIDEBAR ═══ */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background: var(--bg-secondary);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  padding: 32px 20px 24px;
  overflow-y: auto;
  transition: transform var(--transition-base);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 24px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 20px;
}

.sidebar-logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px var(--accent-primary-glow);
}
.sidebar-logo-icon svg { width: 22px; height: 22px; }

.sidebar-logo-text h1 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  line-height: 1.1;
}
.sidebar-logo-text span {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
  display: block;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.sidebar-nav-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  padding: 16px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-spring);
  position: relative;
  text-decoration: none;
}
.nav-item:hover {
  color: var(--accent-primary);
  background: var(--bg-card-hover);
  transform: translateX(6px);
}
.nav-item.active {
  color: var(--accent-primary);
  background: var(--accent-primary-glow);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--accent-primary);
  box-shadow: 0 0 14px 2px var(--accent-primary);
}
.nav-item svg { width: 18px; height: 18px; transition: transform var(--transition-spring); }
.nav-item:hover svg { transform: scale(1.12) rotate(-5deg); }
.nav-item-badge {
  margin-left: auto;
  background: var(--color-expense);
  color: white;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-user-section {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--glass-border);
}
.sidebar-user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-lg);
  cursor: pointer;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
}
.sidebar-user-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary-glow);
}
.user-avatar-wrap {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid white;
  box-shadow: var(--shadow-sm);
}
.user-avatar-wrap img { width: 100%; height: 100%; object-fit: cover; }
.user-avatar-wrap.guest {
  background: var(--glass-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-color: var(--glass-border);
}
.user-avatar-wrap.guest svg { width: 18px; height: 18px; color: var(--text-muted); }
.user-info { flex: 1; min-width: 0; }
.user-name {
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}
.user-status {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.sidebar-logout {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-muted);
  background: rgba(0,0,0,0.02);
}
.sidebar-logout:hover {
  background: var(--color-expense-bg);
  color: var(--color-expense);
}
.sidebar-logout svg { width: 16px; height: 16px; }

.sidebar-footer { padding: 16px 0 0; }
.sidebar-add-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 700;
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 12px var(--accent-primary-glow);
  transition: var(--transition-spring);
}
.sidebar-add-btn:hover {
  box-shadow: 0 8px 24px var(--accent-primary-glow);
  transform: translateY(-2px) scale(1.02);
}
.sidebar-add-btn:active {
  transform: translateY(0) scale(0.96);
}
.sidebar-add-btn svg { width: 18px; height: 18px; }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(26, 27, 44, 0.4);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.sidebar-overlay.active { display: block; opacity: 1; }

/* ═══ MAIN CONTENT ═══ */
.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: transparent;
}

/* ═══ HEADER ═══ */
.header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.6);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

[data-theme="dark"] .header {
  background: rgba(19, 20, 34, 0.6);
}

.header-left { display: flex; align-items: center; gap: 16px; }
.header-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}
.header-subtitle { font-size: 12px; color: var(--text-muted); margin-top: 2px; font-weight: 500; }
.header-right { display: flex; align-items: center; gap: 12px; }

.header-search {
  position: relative;
  display: flex;
  align-items: center;
}
.header-search input {
  width: 240px;
  height: 40px;
  padding: 0 16px 0 40px;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-primary);
  transition: all var(--transition-base);
  font-weight: 500;
}
.header-search input:focus {
  width: 300px;
  background: var(--bg-input-focus);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
  outline: none;
}
.header-search-icon {
  position: absolute;
  left: 14px;
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}
.header-search-shortcut {
  position: absolute;
  right: 12px;
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 600;
  border: 1px solid var(--glass-border);
}

.header-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  position: relative;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
}
.header-icon-btn:hover {
  background: var(--bg-card-hover);
  color: var(--accent-primary);
  transform: translateY(-1px);
}
.header-icon-btn svg { width: 18px; height: 18px; }
.notification-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-expense);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--bg-secondary);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
}
.theme-toggle:hover {
  background: var(--bg-card-hover);
  color: var(--accent-primary);
  transform: translateY(-1px);
}
.theme-toggle svg { width: 18px; height: 18px; }

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  background: var(--bg-secondary);
}
.mobile-menu-btn svg { width: 20px; height: 20px; }

/* ═══ PAGE CONTENT AREA ═══ */
.page-content {
  flex: 1;
  padding: 40px;
  overflow-y: auto;
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

/* ═══ BOTTOM NAV FOR MOBILE ═══ */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-nav-height);
  background: rgba(255, 255, 255, 0.85);
  border-top: 1px solid var(--glass-border);
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

[data-theme="dark"] .bottom-nav {
  background: rgba(19, 20, 34, 0.85);
}

.bottom-nav-items {
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 100%;
  padding: 0 12px;
}
.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 10px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  text-decoration: none;
  padding: 4px 16px;
  font-weight: 700;
}
.bottom-nav-item svg { width: 20px; height: 20px; transition: transform var(--transition-fast); }
.bottom-nav-item:hover svg { transform: scale(1.1); }
.bottom-nav-item.active { color: var(--accent-primary); }
.bottom-nav-add {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px var(--accent-primary-glow);
  transform: translateY(-12px);
  transition: all var(--transition-base);
}
.bottom-nav-add:hover {
  transform: translateY(-14px) scale(1.05);
  box-shadow: 0 6px 24px var(--accent-primary-glow);
}
.bottom-nav-add svg { width: 24px; height: 24px; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-xl); }
  .main { margin-left: 0; }
  .mobile-menu-btn { display: flex; }
  .header-search { display: none; }
  .hide-on-mobile { display: none !important; }
}

@media (max-width: 768px) {
  .bottom-nav { display: block; }
  .page-content { padding: 24px 20px; padding-bottom: calc(var(--bottom-nav-height) + 24px); }
  .header { padding: 0 20px; }
  .mobile-menu-btn { width: 36px; height: 36px; }
  .header-title { font-size: 18px; }
}