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

/* ============================================
   CSS CUSTOM PROPERTIES - HD Fund Branding
   ============================================ */
:root {
  --color-primary: #0d577f;
  --color-primary-dark: #0a4566;
  --color-primary-light: #1a6d9a;
  --color-accent: #eecd25;
  --color-accent-dark: #d4b61e;
  --color-accent-light: #f5dc4a;
  --color-secondary-1: #174862;
  --color-secondary-2: #0d3e58;
  --color-bg-light: #e9f1f7;

  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-danger: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-info: #0284c7;
  --color-info-bg: #f0f9ff;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  --sidebar-width: 260px;
  --header-height: 64px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-gray-900);
  line-height: 1.3;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-light); }

img { max-width: 100%; height: auto; }

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

.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--color-secondary-2) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-brand {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-brand img {
  height: 36px;
  width: auto;
}

.sidebar-brand h2 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
}

.sidebar-nav {
  padding: 1rem 0;
  list-style: none;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.5rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.sidebar-nav li a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-nav li a.active {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--color-accent);
}

.sidebar-nav li a svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-section-title {
  padding: 1.25rem 1.5rem 0.5rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  font-weight: 600;
}

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   HEADER
   ============================================ */
.top-header {
  height: var(--header-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-left h1 {
  font-size: 1.2rem;
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.user-menu:hover { background: var(--color-gray-100); }

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-gray-700);
}

.content-area {
  padding: 2rem;
  flex: 1;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition-normal);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.card-body { padding: 1.5rem; }

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-gray-100);
}

/* Stat Cards */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon.primary { background: rgba(13, 87, 127, 0.1); color: var(--color-primary); }
.stat-icon.accent { background: rgba(238, 205, 37, 0.15); color: var(--color-accent-dark); }
.stat-icon.success { background: var(--color-success-bg); color: var(--color-success); }
.stat-icon.info { background: var(--color-info-bg); color: var(--color-info); }

.stat-icon svg { width: 24px; height: 24px; }

.stat-info h4 {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.stat-info .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-gray-900);
  font-family: var(--font-heading);
  line-height: 1;
}

.stat-info .stat-sub {
  font-size: 0.78rem;
  color: var(--color-gray-500);
  margin-top: 0.25rem;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
}

.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-gray-900);
}
.btn-accent:hover { background: var(--color-accent-dark); }

.btn-outline {
  background: transparent;
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-300);
}
.btn-outline:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
  color: var(--color-gray-700);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-white);
}
.btn-danger:hover { background: #b91c1c; }

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-gray-800);
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 87, 127, 0.15);
}

.form-control::placeholder { color: var(--color-gray-400); }

.form-control.is-invalid { border-color: var(--color-danger); }

.invalid-feedback {
  font-size: 0.8rem;
  color: var(--color-danger);
  margin-top: 0.25rem;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
}

/* ============================================
   TABLES
   ============================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
}

table thead th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--color-gray-50);
  border-bottom: 2px solid var(--color-gray-200);
  white-space: nowrap;
}

table thead th.sortable {
  cursor: pointer;
  user-select: none;
}

table thead th.sortable:hover { color: var(--color-primary); }

table tbody td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

table tbody tr:hover { background: var(--color-gray-50); }

table tbody tr:last-child td { border-bottom: none; }

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
}

.badge-primary { background: rgba(13, 87, 127, 0.1); color: var(--color-primary); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }

/* ============================================
   FLASH MESSAGES
   ============================================ */
.flash-message {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  animation: slideDown 0.3s ease;
}

.flash-success { background: var(--color-success-bg); color: #166534; border: 1px solid #bbf7d0; }
.flash-error { background: var(--color-danger-bg); color: #991b1b; border: 1px solid #fecaca; }
.flash-warning { background: var(--color-warning-bg); color: #92400e; border: 1px solid #fde68a; }
.flash-info { background: var(--color-info-bg); color: #075985; border: 1px solid #bae6fd; }

.flash-dismiss {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0.6;
  color: inherit;
  line-height: 1;
}

.flash-dismiss:hover { opacity: 1; }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

.pagination a:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

.pagination .active {
  background: var(--color-primary);
  color: var(--color-white);
}

.pagination .disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--color-gray-500);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.empty-state h3 {
  color: var(--color-gray-600);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto;
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 560px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 { font-size: 1.1rem; }

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-gray-400);
  line-height: 1;
}

.modal-close:hover { color: var(--color-gray-700); }

.modal-body { padding: 1.5rem; }

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-muted { color: var(--color-gray-500); }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open { transform: translateX(0); }

  .main-content { margin-left: 0; }

  .mobile-toggle { display: block; }

  .content-area { padding: 1.25rem; }
}

@media (max-width: 640px) {
  .stat-cards { grid-template-columns: 1fr; }
  .content-area { padding: 1rem; }
  .top-header { padding: 0 1rem; }
}