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

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17,24,39,0.85);
  --bg-glass: rgba(255,255,255,0.03);
  --bg-hover: rgba(255,255,255,0.06);
  --bg-input: rgba(255,255,255,0.05);
  --border: rgba(255,255,255,0.08);
  --border-focus: #10b981;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #10b981;
  --accent-hover: #059669;
  --accent-glow: rgba(16,185,129,0.15);
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --purple: #8b5cf6;
  --pink: #ec4899;
  --sidebar-w: 260px;
  --topbar-h: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ===== LOGIN PAGE ===== */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 30% 20%, rgba(16,185,129,0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(99,102,241,0.06) 0%, transparent 50%),
              var(--bg-primary);
  padding: 20px;
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow);
  animation: fadeInUp 0.5s ease;
}

.login-card h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--accent), #6ee7b7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-card p { color: var(--text-secondary); margin-bottom: 32px; font-size: 0.9rem; }

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

.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;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

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

.sidebar-brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #6ee7b7);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.sidebar-brand h2 {
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-brand span { font-size: 0.7rem; color: var(--text-muted); display: block; }

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

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2px;
  text-decoration: none;
  user-select: none;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); }
.nav-item.active .nav-icon { color: var(--accent); }
.nav-icon { font-size: 1.1rem; width: 22px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sidebar-footer .avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.75rem; color: #fff;
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-h);
  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;
  backdrop-filter: blur(10px);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-title { font-size: 1.15rem; font-weight: 600; }
.topbar-breadcrumb { font-size: 0.8rem; color: var(--text-muted); }

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

.topbar-search {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  color: var(--text-primary);
  font-size: 0.85rem;
  width: 220px;
  outline: none;
  transition: var(--transition);
}
.topbar-search:focus { border-color: var(--accent); width: 280px; }
.topbar-search::placeholder { color: var(--text-muted); }

.page-content { padding: 28px; flex: 1; }

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.card:hover { border-color: rgba(255,255,255,0.12); }
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.card-title { font-size: 1rem; font-weight: 600; }

/* Stat Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 28px; }

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--stat-color, var(--accent)), transparent);
  opacity: 0.7;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-card .stat-info h3 { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; line-height: 1; }
.stat-card .stat-change { font-size: 0.75rem; margin-top: 6px; display: flex; align-items: center; gap: 4px; }
.stat-card .stat-change.positive { color: var(--accent); }
.stat-card .stat-change.negative { color: var(--danger); }
.stat-card .stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  background: var(--accent-glow);
  flex-shrink: 0;
}

/* ===== FORMS ===== */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.8rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-textarea { min-height: 100px; resize: vertical; }
.form-select { cursor: pointer; }
.form-select option { background: var(--bg-secondary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(16,185,129,0.3); }
.btn-secondary { background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-hover); border-color: rgba(255,255,255,0.15); }
.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-icon { padding: 8px; width: 36px; height: 36px; justify-content: center; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== TABLE ===== */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
.data-table th:hover { color: var(--text-primary); }
.data-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); }

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.table-filters { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.table-filter-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 0.83rem;
  outline: none;
  min-width: 180px;
}
.table-filter-input:focus { border-color: var(--accent); }
.table-filter-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 0.83rem;
  outline: none;
  cursor: pointer;
}
.table-filter-select option { background: var(--bg-secondary); }

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.pagination-btns { display: flex; gap: 4px; }
.pagination-btn {
  padding: 6px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.8rem;
}
.pagination-btn:hover { background: var(--bg-hover); }
.pagination-btn.active { background: var(--accent); border-color: var(--accent); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-active { background: rgba(16,185,129,0.15); color: #34d399; }
.badge-inactive { background: rgba(100,116,139,0.2); color: #94a3b8; }
.badge-pending { background: rgba(245,158,11,0.15); color: #fbbf24; }
.badge-cancelled { background: rgba(239,68,68,0.15); color: #f87171; }
.badge-income { background: rgba(16,185,129,0.15); color: #34d399; }
.badge-expense { background: rgba(239,68,68,0.15); color: #f87171; }
.badge-draft { background: rgba(100,116,139,0.2); color: #94a3b8; }
.badge-sent { background: rgba(59,130,246,0.15); color: #60a5fa; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}
.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  animation: fadeInUp 0.3s ease;
}
.modal-lg { max-width: 800px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 1.1rem; font-weight: 600; }
.modal-close {
  background: none; border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ===== TABS ===== */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 24px; gap: 4px; }
.tab {
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== CHARTS ===== */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 28px; }
.chart-container { position: relative; min-height: 250px; }
.chart-canvas { width: 100% !important; height: 250px !important; }

/* ===== MEMBER CARD ===== */
.member-card-preview {
  width: 340px;
  height: 214px;
  border-radius: 14px;
  padding: 24px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  border: 1px solid rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
  color: #fff;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.member-card-preview::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.5;
}
.member-card-preview .card-club { font-size: 0.75rem; font-weight: 700; letter-spacing: 1px; color: var(--accent); text-transform: uppercase; position: relative; }
.member-card-preview .card-name { font-size: 1.2rem; font-weight: 700; margin-top: 24px; position: relative; }
.member-card-preview .card-number { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; position: relative; }
.member-card-preview .card-bottom { position: absolute; bottom: 20px; left: 24px; right: 24px; display: flex; justify-content: space-between; align-items: flex-end; }
.member-card-preview .card-detail { font-size: 0.65rem; color: var(--text-muted); }
.member-card-preview .card-detail span { display: block; font-size: 0.8rem; color: var(--text-primary); font-weight: 500; }

/* ===== ACTIVITY FEED ===== */
.activity-list { list-style: none; }
.activity-item {
  display: flex; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}
.activity-item:last-child { border-bottom: none; }
.activity-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: 6px; flex-shrink: 0; }
.activity-time { color: var(--text-muted); font-size: 0.75rem; margin-top: 2px; }

/* ===== GUIDE ===== */
.guide-list { display: flex; flex-direction: column; gap: 12px; }
.guide-item {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.guide-item:hover { border-color: var(--accent); background: var(--bg-hover); }
.guide-item h3 { font-size: 1rem; margin-bottom: 6px; }
.guide-item p { font-size: 0.83rem; color: var(--text-secondary); }
.guide-content { padding: 24px; line-height: 1.8; }
.guide-content h2 { color: var(--accent); margin: 20px 0 10px; font-size: 1.15rem; }
.guide-content h3 { margin: 16px 0 8px; font-size: 1rem; }

/* ===== TOAST ===== */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 300; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 0.85rem;
  box-shadow: var(--shadow);
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
}
.toast-success { border-left: 3px solid var(--accent); }
.toast-error { border-left: 3px solid var(--danger); }
.toast-info { border-left: 3px solid var(--info); }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 8px; }

/* ===== LOADING ===== */
.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(60px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== RESPONSIVE ===== */
.mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.3rem; cursor: pointer; padding: 8px; }

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-toggle { display: block; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .charts-grid { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .topbar-search { display: none; }
  .table-toolbar { flex-direction: column; align-items: stretch; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
}