@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: #1E293B;
  --bg-card2: #243047;
  --border: #334155;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent-blue: #3B82F6;
  --accent-blue-dark: #2563EB;
  --accent-green: #10B981;
  --accent-gold: #F59E0B;
  --accent-red: #EF4444;
  --accent-purple: #8B5CF6;
  --sidebar-w: 260px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: all 0.2s ease;
}

[data-theme="light"] {
  --bg-primary: #F1F5F9;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card2: #F8FAFC;
  --border: #E2E8F0;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* LAYOUT */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: var(--transition);
  overflow: hidden;
}

.sidebar.collapsed { width: 68px; }

.sidebar-logo {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  min-height: 72px;
}

.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, #3B82F6, #10B981);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.logo-text { font-size: 13px; font-weight: 700; line-height: 1.3; white-space: nowrap; overflow: hidden; }
.logo-text span { color: var(--accent-blue); display: block; }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 8px 4px;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .nav-section-label { opacity: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}

.nav-item:hover { background: var(--bg-card2); color: var(--text-primary); }
.nav-item.active { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--accent-blue);
  border-radius: 0 3px 3px 0;
}

.nav-icon { font-size: 18px; flex-shrink: 0; width: 20px; text-align: center; }
.nav-label { transition: opacity 0.2s; }
.sidebar.collapsed .nav-label { opacity: 0; width: 0; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}

/* MAIN CONTENT */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left 0.2s;
}

.sidebar.collapsed ~ .main-content { margin-left: 68px; }

/* TOPBAR */
.topbar {
  height: 72px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }

.btn-collapse {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  font-size: 20px;
}
.btn-collapse:hover { background: var(--bg-card2); color: var(--text-primary); }

.page-title { font-size: 18px; font-weight: 700; }

.topbar-right { display: flex; align-items: center; gap: 12px; }

.topbar-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  font-size: 18px;
}
.topbar-btn:hover { background: var(--bg-card2); color: var(--text-primary); }

.badge {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--accent-red);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  width: 16px; height: 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

.theme-toggle {
  width: 44px; height: 24px;
  background: var(--border);
  border-radius: 12px;
  position: relative;
  transition: background 0.3s;
  cursor: pointer;
}
.theme-toggle.active { background: var(--accent-blue); }
.theme-toggle::after {
  content: '';
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 3px; left: 3px;
  transition: transform 0.3s;
}
.theme-toggle.active::after { transform: translateX(20px); }

.avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3B82F6, #8B5CF6);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

/* PAGE BODY */
.page-body {
  flex: 1;
  padding: 28px;
  overflow-y: auto;
}

/* GRID */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* CARD */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.card:hover { border-color: var(--accent-blue); box-shadow: var(--shadow); }
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.card-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.card-sub {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* KPI ICON */
.kpi-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.kpi-icon.blue { background: rgba(59,130,246,0.15); }
.kpi-icon.green { background: rgba(16,185,129,0.15); }
.kpi-icon.gold { background: rgba(245,158,11,0.15); }
.kpi-icon.red { background: rgba(239,68,68,0.15); }
.kpi-icon.purple { background: rgba(139,92,246,0.15); }

/* TREND */
.trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
}
.trend.up { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.trend.down { background: rgba(239,68,68,0.15); color: var(--accent-red); }

/* PROGRESS BAR */
.progress-wrap { margin-top: 12px; }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.progress-bar {
  height: 6px;
  background: var(--bg-card2);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s ease;
}
.progress-fill.green { background: var(--accent-green); }
.progress-fill.gold { background: var(--accent-gold); }
.progress-fill.red { background: var(--accent-red); }
.progress-fill.blue { background: var(--accent-blue); }

/* SEMAPHORE */
.semaphore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}
.semaphore.green { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.semaphore.yellow { background: rgba(245,158,11,0.15); color: var(--accent-gold); }
.semaphore.red { background: rgba(239,68,68,0.15); color: var(--accent-red); }

/* OBLIGATIONS LIST */
.obligation-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.obligation-item:last-child { border-bottom: none; }
.obligation-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.obligation-info { flex: 1; }
.obligation-name { font-size: 14px; font-weight: 500; }
.obligation-days { font-size: 12px; color: var(--text-muted); }
.obligation-value { font-size: 14px; font-weight: 700; }

/* INSIGHT CARD */
.insight-card {
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius);
  padding: 20px;
}
.insight-title { font-size: 12px; font-weight: 600; color: var(--accent-blue); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.insight-text { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* GOAL ITEM */
.goal-item { margin-bottom: 16px; }
.goal-item:last-child { margin-bottom: 0; }
.goal-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.goal-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }

/* CHART CONTAINER */
.chart-wrap { position: relative; height: 220px; }

/* TABLE */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-card2); }

/* CATEGORY PILL */
.cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}

/* TYPE BADGE */
.type-income { color: var(--accent-green); font-weight: 600; }
.type-expense { color: var(--accent-red); font-weight: 600; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary { background: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: var(--accent-blue-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59,130,246,0.4); }
.btn-secondary { background: var(--bg-card2); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.btn-danger { background: rgba(239,68,68,0.1); color: var(--accent-red); border: 1px solid rgba(239,68,68,0.2); }
.btn-danger:hover { background: var(--accent-red); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-icon { padding: 8px; border-radius: var(--radius-sm); }

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.2s;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 18px; font-weight: 700; }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* FORM */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.form-control {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  padding: 10px 14px;
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--accent-blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
select.form-control { cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* TOGGLE SWITCH GROUP */
.toggle-group {
  display: flex;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
}
.toggle-opt {
  flex: 1;
  padding: 8px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
}
.toggle-opt.active { background: var(--accent-blue); color: #fff; }

/* TAGS */
.tags-wrap { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.tag {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 12px;
  padding: 3px 10px;
  display: flex; align-items: center; gap: 4px;
  cursor: pointer;
  transition: var(--transition);
}
.tag:hover, .tag.selected { background: rgba(59,130,246,0.15); border-color: var(--accent-blue); color: var(--accent-blue); }
.tag .remove { color: var(--text-muted); font-size: 14px; line-height: 1; }

/* FILTERS BAR */
.filters-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.search-wrap { position: relative; flex: 1; min-width: 200px; }
.search-wrap input { padding-left: 38px; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 16px; }

/* LOGIN PAGE */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  padding: 20px;
}
.auth-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  padding: 48px 40px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.4);
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo .logo-icon { width: 56px; height: 56px; margin: 0 auto 12px; font-size: 28px; }
.auth-title { font-size: 24px; font-weight: 800; text-align: center; margin-bottom: 4px; }
.auth-sub { font-size: 14px; color: var(--text-secondary); text-align: center; margin-bottom: 32px; }
.auth-divider {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-muted); font-size: 13px;
  margin: 20px 0;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.btn-oauth {
  width: 100%; padding: 12px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  transition: var(--transition);
}
.btn-oauth:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.auth-link { color: var(--accent-blue); cursor: pointer; }
.auth-link:hover { text-decoration: underline; }

/* SECTION HEADER */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.section-title { font-size: 20px; font-weight: 700; }

/* EMPTY STATE */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* TOAST */
.toast-container {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
  animation: slideUp 0.3s ease;
  border-left: 4px solid var(--accent-green);
}
.toast.error { border-left-color: var(--accent-red); }
.toast.warning { border-left-color: var(--accent-gold); }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* RESPONSIVE */
@media (max-width: 1280px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --sidebar-w: 260px; }
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
  .page-body { padding: 16px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .topbar { padding: 0 16px; }
  .auth-card { padding: 32px 24px; }
}
@media (max-width: 480px) {
  .card { padding: 16px; }
  .card-value { font-size: 22px; }
}
@media (min-width: 1920px) {
  .page-body { max-width: 1600px; margin: 0 auto; }
}

/* ANIMATIONS */
.fade-in {
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse {
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}