:root {
  --bg: #0f1117;
  --panel: #171a24;
  --panel-2: #1e222e;
  --border: #2a2f3d;
  --text: #e8e9ee;
  --muted: #9099ab;
  --accent: #6366f1;
  --accent-2: #818cf8;
  --green: #22c55e;
  --red: #ef4444;
  --radius: 12px;
}

* { box-sizing: border-box; }

/* --- Updated body declaration --- */
html {
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: auto;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100%;
  /* remove overflow-y, -webkit-overflow-scrolling, overscroll-behavior-y from here */
}

/* --- Updated container declaration --- */
.container { 
  max-width: 980px; 
  margin: 0 auto; 
  padding: 0 10px 10px 10px; /* Replaced negative margin with proper top padding adjustment */
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Topbar & Navigation Layout --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.topbar .brand { 
  font-weight: 700; 
  font-size: 1.2rem; 
  color: var(--text); 
  text-decoration: none;
  user-select: none;
}
.topbar .brand span { color: var(--accent-2); }

.topbar nav { display: flex; gap: 16px; align-items: center; }
.topbar nav a { color: var(--muted); font-size: 0.92rem; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); }
.topbar nav form { display: inline-flex; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.sub-links {
  display: flex;
  gap: 12px;
  align-items: center;
}



.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 20px;
}
.card h2, .card h3 { margin-top: 0; }

.grid { display: grid; gap: 10px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.stat {
  background: var(--panel-2);
  border-radius: var(--radius);
  padding: 10px;
  border: 1px solid var(--border);
}
.stat .label { color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em; }
.stat .slabel { color: var(--muted); font-size: 0.5rem; text-transform: uppercase; letter-spacing: 0.04em; }
.stat .value { font-size: 1.2rem; font-weight: 700; margin-top: 2px; }
.value.positive { color: var(--green); }
.value.negative { color: var(--red); }

.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: none;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
}
.btn:hover { background: var(--accent-2); text-decoration: none; }
.btn.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.danger { background: var(--red); }
.btn.small { padding: 5px 10px; font-size: 0.8rem; }

.input {
  width: 100%;
  padding: 9px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.92rem;
}

form p { margin: 12px 0; }
label { display: block; margin-bottom: 4px; color: var(--muted); font-size: 0.85rem; }
slabel { display: block; margin-bottom: 4px; color: var(--muted); font-size: 0.5rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--panel-2);
  border: 1px solid var(--border);
}
.badge.admin { background: rgba(99,102,241,0.2); color: var(--accent-2); border-color: var(--accent); }

.messages { 
  list-style: none; 
  padding: 0; 
  margin: 0 0 16px 0; 
  width: 100%;
}

.messages li {
  padding: 12px 16px;
  border-radius: var(--radius, 8px);
  margin-bottom: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  /* Optional: Adds a thick accent border on the left side for a crisp modern look */
  border-left-width: 4px;
}

/* Success State - Full Green Frame */
.messages li.success { 
  background: rgba(34, 197, 94, 0.12); 
  border-color: var(--green); 
  color: var(--green);
}

/* Error State - Full Red Frame */
.messages li.error { 
  background: rgba(239, 68, 68, 0.12); 
  border-color: var(--red); 
  color: var(--red);
}

/* Info State - Full Accent Frame */
.messages li.info { 
  background: rgba(99, 102, 241, 0.12); 
  border-color: var(--accent); 
  color: var(--accent-2);
}

/* Warning State - Full Yellow Frame */
.messages li.warning { 
  background: rgba(234, 179, 8, 0.12); 
  border-color: #eab308; 
  color: #fde047;
}

.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 0.85rem;
}

.muted { color: var(--muted); }
.flex { display: flex; align-items: center; gap: 10px; }
.flex.between { justify-content: space-between; }
.mt-0 { margin-top: 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.split-row { display: grid; grid-template-columns: 1fr 120px; gap: 10px; align-items: center; padding: 6px 0; }
.empty-state { color: var(--muted); text-align: center; padding: 30px 0; }

/* --- Modern Expense List Design --- */
.expense-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.expense-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.expense-item:hover {
  border-color: var(--accent-2);
  transform: translateY(-1px);
}

.expense-left { display: flex; flex-direction: column; gap: 4px; }
.expense-title { font-weight: 600; font-size: 1.05rem; color: var(--text); }
.expense-title:hover { color: var(--accent-2); }
.expense-meta { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.expense-meta .dot { color: var(--border); }
.expense-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.expense-amount { font-size: 1.2rem; font-weight: 700; color: var(--text); }

.clickable-card {
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
  user-select: none;
}
.clickable-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.clickable-card:hover .group-title-text { color: var(--accent-2); }

.expense-row-link:hover { background-color: var(--panel-2); }
.expense-row-link:hover .expense-title-text { color: var(--accent-2) !important; }

.fab-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border-radius: 50px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.fab-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}
.fab-btn:active { transform: translateY(0); }
.fab-btn {
  bottom: calc(24px + env(safe-area-inset-bottom));
  right: calc(24px + env(safe-area-inset-right));
}
/* --- Floating Labels Base --- */
.floating-group {
  position: relative;
  margin-bottom: 0.7rem;
}

.floating-group .input {
  width: 100%;
  padding: 1.2rem 12px 0.5rem 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.92rem;
  box-sizing: border-box;
}
.floating-group .input:focus {
  outline: none;
  border-color: var(--accent);
}

.floating-group label {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  padding: 0;
  color: var(--muted);
  font-size: 0.92rem;
  transition: 0.2s ease all;
  pointer-events: none;
  z-index: 5;
}

.floating-group textarea.input + label {
  top: 1.25rem;
  transform: none;
}

.floating-group .input:focus + label,
.floating-group .input:not(:placeholder-shown) + label {
  top: 0.3rem;
  transform: none;
  font-size: 0.72rem;
  color: var(--accent-2);
}

.floating-group.floating-select label {
  top: 0.75rem;
  transform: none;
  font-size: 0.7rem;
}

/* --- Select2 Dark Theme Integration --- */
.floating-group .select2-container {
  width: 100% !important;
}

.floating-group .select2-container--default .select2-selection--single {
  background-color: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 50px;
  min-height: 50px;
  display: flex;
  align-items: center;
  position: relative;
  padding: 1.2rem 12px 0.5rem 12px;
  box-sizing: border-box;
}

.floating-group .select2-container--default.select2-container--focus .select2-selection--single {
  border-color: var(--accent);
  outline: none;
}

.floating-group .select2-container--default .select2-selection--single .select2-selection__rendered {
  color: var(--text);
  font-size: 0.92rem;
  padding-left: 0;
  padding-right: 20px;
  line-height: 1.2;
  width: 100%;
}

.floating-group .select2-container--default .select2-selection--single .select2-selection__arrow {
  height: 100%;
  top: 0;
  right: 12px;
  display: flex;
  align-items: center;
  position: absolute;
}

.select2-container--open .select2-selection__rendered {
  visibility: hidden;
}

.select2-container--open .select2-dropdown {
  border-top: 1px solid var(--border);
  margin-top: -47px;
}

.select2-container--default .select2-search--dropdown {
  padding: 0;
}

.select2-container--default .select2-search--dropdown .select2-search__field {
  background-color: var(--panel-2);
  border: 1px solid var(--accent);
  color: var(--text);
  border-radius: var(--radius);
  height: 50px;
  padding: 1.2rem 12px 0.5rem 12px;
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  box-sizing: border-box;
}

/* --- Select2 Results Options & Colors --- */
.select2-dropdown {
  background-color: var(--panel) !important;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  z-index: 1050;
}

.select2-container--default .select2-results__option {
  padding: 10px 12px;
  color: var(--text);
  background-color: var(--panel) !important;
  font-size: 0.92rem;
}

/* Hover/Keyboard focus highlight */
.select2-container--default .select2-results__option--highlighted[aria-selected] {
  background-color: var(--accent) !important;
  color: #ffffff !important;
}

/* Selected item (Unhovered state) */
.select2-container--default .select2-results__option[aria-selected="true"] {
  background-color: var(--panel-2) !important;
  color: var(--accent-2) !important;
}

/* Selected item while hovered */
.select2-container--default .select2-results__option--highlighted[aria-selected="true"] {
  background-color: var(--accent) !important;
  color: #ffffff !important;
}

.floating-group.select2-active label {
  top: 0.3rem !important;
  transform: none !important;
  font-size: 0.72rem !important;
  color: var(--accent-2) !important;
}

/* --- Toggle Switch Styles --- */
.switch-container {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
}
.switch-input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #ccc;
  transition: .2s ease;
  border-radius: 24px;
}
.switch-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s ease;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.switch-input:checked + .switch-slider {
  background-color: #4f46e5;
}
.switch-input:checked + .switch-slider:before {
  transform: translateX(22px);
}
.switch-input:focus + .switch-slider {
  box-shadow: 0 0 1px #4f46e5;
}

/* --- Responsive Media Breakpoints --- */
@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .topbar nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 12px;
    z-index: 100;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  }

  .topbar nav.active { display: flex; }

  .topbar nav a {
    font-size: 1rem;
    padding: 6px 0;
    border-bottom: 1px solid rgba(42, 47, 61, 0.4);
  }
  .topbar nav a:last-of-type { border-bottom: none; }

  .sub-links {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 16px;
    gap: 8px;
    margin-top: -4px;
    margin-bottom: 4px;
  }
  .sub-links a {
    width: 100%;
    font-size: 0.88rem !important;
    border-bottom: none;
    padding: 2px 0;
  }

  .topbar nav form { width: 100%; margin-top: 6px; }
  .topbar nav form .btn { width: 100%; text-align: center; padding: 10px; }
}

@media (max-width: 480px) {
  .expense-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .expense-right {
    width: 100%;
    flex-direction: row-reverse;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 10px;
  }
}