/* ============================================================
   SACCO Management System — Global Stylesheet
   ============================================================ */

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

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --primary:       #4f46e5;
  --primary-dark:  #3730a3;
  --primary-light: #818cf8;
  --secondary:     #0ea5e9;
  --success:       #10b981;
  --warning:       #f59e0b;
  --danger:        #ef4444;
  --info:          #06b6d4;
  --dark:          #0f172a;
  --dark-2:        #1e293b;
  --dark-3:        #334155;
  --muted:         #64748b;
  --border:        #e2e8f0;
  --bg:            #f8fafc;
  --white:         #ffffff;
  --card-bg:       #ffffff;
  --sidebar-w:     260px;
  --header-h:      64px;
  --radius:        12px;
  --radius-sm:     8px;
  --shadow:        0 4px 24px rgba(0,0,0,.07);
  --shadow-lg:     0 10px 40px rgba(0,0,0,.12);
  --transition:    all .2s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 15px; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--dark-2);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── Layout ────────────────────────────────────────────────── */
.app-wrapper { display: flex; min-height: 100vh; }

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--dark);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  transition: var(--transition);
  overflow-y: auto;
}
.sidebar-brand {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.sidebar-brand .brand-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff;
  flex-shrink: 0;
}
.sidebar-brand .brand-text { font-weight: 700; font-size: .95rem; color: #fff; line-height: 1.2; }
.sidebar-brand .brand-sub  { font-size: .72rem; color: var(--muted); }

.sidebar-nav { flex: 1; padding: 1rem 0; }
.nav-section-label {
  padding: .5rem 1.5rem;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem 1.5rem;
  color: rgba(255,255,255,.65);
  font-size: .875rem;
  font-weight: 500;
  transition: var(--transition);
  border-left: 3px solid transparent;
}
.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(255,255,255,.06);
  border-left-color: var(--primary-light);
}
.nav-link .nav-icon { width: 18px; text-align: center; font-size: .95rem; }
.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 9999px;
  min-width: 18px;
  text-align: center;
}

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

/* ── Header ────────────────────────────────────────────────── */
.topbar {
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.75rem;
  position: sticky; top: 0;
  z-index: 900;
  gap: 1rem;
  box-shadow: 0 1px 8px rgba(0,0,0,.04);
}
.topbar-left { display: flex; align-items: center; gap: .75rem; flex: 1; }
.topbar-title { font-weight: 700; font-size: 1.1rem; color: var(--dark); }
.topbar-right { display: flex; align-items: center; gap: 1rem; }
.topbar-btn {
  background: none; border: none;
  width: 36px; height: 36px;
  border-radius: 8px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 1rem;
  transition: var(--transition);
}
.topbar-btn:hover { background: var(--bg); color: var(--dark); }

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: .85rem;
  cursor: pointer;
  text-transform: uppercase;
}

/* ── Page Body ─────────────────────────────────────────────── */
.page-body { padding: 1.75rem; flex: 1; }
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem;
}
.page-header h1 {
  font-size: 1.5rem; font-weight: 800; color: var(--dark);
}
.breadcrumb { font-size: .8rem; color: var(--muted); margin-top: .2rem; }
.breadcrumb a { color: var(--primary); }
.breadcrumb span::before { content: ' / '; color: var(--muted); }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--white);
}
.card-header h2, .card-header h3 { font-size: 1rem; font-weight: 700; color: var(--dark); }
.card-body { padding: 1.25rem; }
.card-footer { padding: 1rem 1.25rem; border-top: 1px solid var(--border); background: var(--bg); }

/* ── Stat Cards ────────────────────────────────────────────── */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 1rem;
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; flex-shrink: 0;
}
.stat-icon.primary  { background: rgba(79,70,229,.1);  color: var(--primary); }
.stat-icon.success  { background: rgba(16,185,129,.1); color: var(--success); }
.stat-icon.warning  { background: rgba(245,158,11,.1); color: var(--warning); }
.stat-icon.danger   { background: rgba(239,68,68,.1);  color: var(--danger); }
.stat-icon.info     { background: rgba(6,182,212,.1);  color: var(--info); }
.stat-icon.secondary{ background: rgba(14,165,233,.1); color: var(--secondary); }

.stat-info h3 { font-size: 1.6rem; font-weight: 800; line-height: 1; color: var(--dark); }
.stat-info p  { font-size: .78rem; color: var(--muted); margin-top: .25rem; font-weight: 500; }
.stat-change  { font-size: .75rem; margin-top: .25rem; }
.stat-change.up   { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ── Table ─────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead tr { background: var(--bg); }
th { padding: .75rem 1rem; text-align: left; font-weight: 700; color: var(--muted);
     font-size: .75rem; text-transform: uppercase; letter-spacing: .05em;
     border-bottom: 2px solid var(--border); white-space: nowrap; }
td { padding: .75rem 1rem; border-bottom: 1px solid var(--border); color: var(--dark-2); }
tbody tr:hover { background: rgba(79,70,229,.025); }
tbody tr:last-child td { border-bottom: none; }
.table-actions { display: flex; gap: .4rem; flex-wrap: wrap; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .82rem; font-weight: 600; color: var(--dark-2); }
.form-control {
  width: 100%; padding: .6rem .9rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .875rem; font-family: inherit;
  background: var(--white); color: var(--dark-2);
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.12); }
.form-control.is-invalid { border-color: var(--danger); }
.form-hint { font-size: .75rem; color: var(--muted); }
.form-error { font-size: .75rem; color: var(--danger); }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600; cursor: pointer;
  border: none; transition: var(--transition);
  white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary   { background: var(--primary);  color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--success);  color: #fff; }
.btn-success:hover { background: #059669; }
.btn-danger    { background: var(--danger);   color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-warning   { background: var(--warning);  color: #fff; }
.btn-warning:hover { background: #d97706; }
.btn-secondary { background: var(--dark-3);   color: #fff; }
.btn-secondary:hover { background: var(--dark-2); }
.btn-outline   { background: transparent; border: 1.5px solid var(--border); color: var(--dark-2); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-lg { padding: .75rem 1.5rem; font-size: 1rem; }
.btn-icon { padding: .4rem .45rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .25rem;
  padding: .2rem .55rem;
  border-radius: 9999px;
  font-size: .72rem; font-weight: 700;
  white-space: nowrap;
}
.badge-success   { background: rgba(16,185,129,.12);  color: #059669; }
.badge-warning   { background: rgba(245,158,11,.12);  color: #b45309; }
.badge-danger    { background: rgba(239,68,68,.12);   color: #dc2626; }
.badge-info      { background: rgba(6,182,212,.12);   color: #0e7490; }
.badge-secondary { background: rgba(100,116,139,.12); color: var(--muted); }
.badge-dark      { background: rgba(15,23,42,.12);    color: var(--dark); }
.badge-primary   { background: rgba(79,70,229,.12);   color: var(--primary); }

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  padding: .9rem 1.1rem;
  border-radius: var(--radius-sm);
  display: flex; align-items: flex-start; gap: .65rem;
  font-size: .875rem; margin-bottom: 1rem;
  border-left: 4px solid;
}
.alert-success { background: rgba(16,185,129,.08); border-color: var(--success); color: #065f46; }
.alert-error   { background: rgba(239,68,68,.08);  border-color: var(--danger);  color: #7f1d1d; }
.alert-warning { background: rgba(245,158,11,.08); border-color: var(--warning); color: #78350f; }
.alert-info    { background: rgba(14,165,233,.08); border-color: var(--info);    color: #0c4a6e; }

/* ── Pagination ────────────────────────────────────────────── */
.pagination { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.page-link {
  padding: .35rem .65rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  color: var(--dark-2); font-size: .8rem; font-weight: 500;
  transition: var(--transition);
}
.page-link:hover, .page-link.active {
  background: var(--primary); border-color: var(--primary); color: #fff;
}
.page-link.disabled { opacity: .45; pointer-events: none; }

/* ── Modals ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 2000;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  transform: translateY(24px);
  transition: transform .25s ease;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 1.05rem; font-weight: 700; }
.modal-close {
  background: none; border: none; cursor: pointer;
  color: var(--muted); font-size: 1.1rem; padding: .2rem;
}
.modal-body { padding: 1.25rem; }
.modal-footer { padding: 1rem 1.25rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: .75rem; }

/* ── Photo Upload ──────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(79,70,229,.04);
}
.upload-zone .upload-icon { font-size: 2rem; color: var(--muted); }
.upload-zone p { color: var(--muted); font-size: .85rem; margin-top: .5rem; }
.upload-preview { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: .75rem; }
.preview-img {
  width: 80px; height: 80px; object-fit: cover;
  border-radius: var(--radius-sm); border: 2px solid var(--border);
}

/* ── Charts ────────────────────────────────────────────────── */
.chart-wrap { position: relative; min-height: 260px; }

/* ── Split Indicator ───────────────────────────────────────── */
.split-bar { height: 8px; border-radius: 9999px; background: var(--border); overflow: hidden; }
.split-bar-inner { height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 9999px; transition: width .4s ease; }

/* ── Login Page ────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 50%, #1e3a5f 100%);
}
.login-left {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 3rem;
}
.login-right {
  width: 440px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  padding: 2.5rem;
  flex-shrink: 0;
}
.login-form-wrap { width: 100%; }
.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo .logo-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: #fff;
  margin-bottom: .75rem;
}
.login-logo h2 { font-size: 1.4rem; font-weight: 800; color: var(--dark); }
.login-logo p  { color: var(--muted); font-size: .85rem; }

/* ── Promo section on login left ───────────────────────────── */
.login-promo h1 { font-size: 2.5rem; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 1rem; }
.login-promo p  { color: rgba(255,255,255,.6); font-size: 1.05rem; max-width: 380px; }
.promo-stats { display: flex; gap: 2rem; margin-top: 2.5rem; }
.promo-stat h3 { font-size: 2rem; font-weight: 800; color: #fff; }
.promo-stat p  { color: rgba(255,255,255,.55); font-size: .82rem; }

/* ── Utilities ─────────────────────────────────────────────── */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-muted { color: var(--muted); }
.text-sm { font-size: .82rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.fw-bold { font-weight: 700; }
.w-100 { width: 100%; }
.hidden { display: none !important; }
.divider { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }
.empty-state { text-align: center; padding: 3rem; color: var(--muted); }
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.spin { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(calc(-1 * var(--sidebar-w))); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .login-left { display: none; }
  .login-right { width: 100%; }
  .stat-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .page-body { padding: 1rem; }
  .stat-cards { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}