/* ============================================================
   DataVault Lite — Main Stylesheet
   Stack: Bootstrap 5 + Custom CSS
   ============================================================ */

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

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --dv-primary:       #2563eb;
  --dv-primary-dark:  #1d4ed8;
  --dv-primary-light: #eff6ff;
  --dv-accent:        #0ea5e9;
  --dv-success:       #16a34a;
  --dv-warning:       #d97706;
  --dv-danger:        #dc2626;
  --dv-info:          #0891b2;

  --dv-sidebar-bg:    #0f172a;
  --dv-sidebar-width: 260px;
  --dv-topbar-h:      60px;

  --dv-bg:            #f1f5f9;
  --dv-surface:       #ffffff;
  --dv-border:        #e2e8f0;
  --dv-muted:         #64748b;
  --dv-text:          #1e293b;
  --dv-text-light:    #94a3b8;

  --dv-radius:        10px;
  --dv-radius-sm:     6px;
  --dv-shadow:        0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --dv-shadow-md:     0 4px 12px rgba(0,0,0,.10);
  --dv-shadow-lg:     0 10px 30px rgba(0,0,0,.12);

  --font-body:        'Inter', system-ui, sans-serif;
  --font-mono:        'JetBrains Mono', monospace;
}

/* ── Reset / Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { font-size: 14px; }

body {
  font-family: var(--font-body);
  background:  var(--dv-bg);
  color:       var(--dv-text);
  margin:      0;
  min-height:  100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout: Sidebar + Main ────────────────────────────────── */
.dv-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.dv-sidebar {
  width:      var(--dv-sidebar-width);
  background: var(--dv-sidebar-bg);
  display:    flex;
  flex-direction: column;
  position:   fixed;
  top: 0; left: 0; bottom: 0;
  z-index:    1000;
  transition: transform .25s ease;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

.dv-sidebar::-webkit-scrollbar { width: 4px; }
.dv-sidebar::-webkit-scrollbar-thumb { background: #334155; border-radius: 4px; }

.dv-sidebar-brand {
  display:     flex;
  align-items: center;
  gap:         10px;
  padding:     20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  text-decoration: none;
}

.dv-sidebar-brand .brand-icon {
  width:  36px; height: 36px;
  background: var(--dv-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
  flex-shrink: 0;
}

.dv-sidebar-brand .brand-text {
  display: flex; flex-direction: column;
}

.dv-sidebar-brand .brand-name {
  font-size:   15px;
  font-weight: 700;
  color:       #f8fafc;
  line-height: 1.2;
  letter-spacing: -.2px;
}

.dv-sidebar-brand .brand-sub {
  font-size: 10px;
  color:     #64748b;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .8px;
}

.dv-nav-section {
  padding: 16px 12px 0;
}

.dv-nav-label {
  font-size:      9px;
  font-weight:    700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color:          #475569;
  padding:        0 8px 6px;
}

.dv-nav-item {
  display:     flex;
  align-items: center;
  gap:         10px;
  padding:     9px 12px;
  border-radius: var(--dv-radius-sm);
  color:       #94a3b8;
  text-decoration: none;
  font-size:   13.5px;
  font-weight: 500;
  margin-bottom: 2px;
  transition:  all .18s ease;
  position:    relative;
}

.dv-nav-item:hover {
  background: rgba(255,255,255,.06);
  color:      #f1f5f9;
}

.dv-nav-item.active {
  background: var(--dv-primary);
  color:      #fff;
}

.dv-nav-item .nav-icon {
  width:   20px;
  font-size: 15px;
  text-align: center;
  flex-shrink: 0;
}

.dv-nav-item .nav-badge {
  margin-left: auto;
  background:  rgba(255,255,255,.15);
  font-size:   10px;
  padding:     1px 6px;
  border-radius: 10px;
  font-weight: 600;
}

.dv-nav-item.active .nav-badge {
  background: rgba(255,255,255,.25);
}

.dv-sidebar-footer {
  margin-top: auto;
  padding:    16px 12px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.dv-user-card {
  display:     flex;
  align-items: center;
  gap:         10px;
  padding:     10px;
  border-radius: var(--dv-radius-sm);
  background:  rgba(255,255,255,.04);
}

.dv-user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--dv-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.dv-user-info .u-name  { font-size: 12.5px; font-weight: 600; color: #e2e8f0; line-height: 1.3; }
.dv-user-info .u-role  { font-size: 10.5px; color: #64748b; }

.dv-logout-btn {
  margin-left: auto;
  background:  none;
  border:      none;
  color:       #475569;
  font-size:   15px;
  cursor:      pointer;
  padding:     4px;
  border-radius: 4px;
  transition:  color .18s;
  line-height: 1;
}
.dv-logout-btn:hover { color: #ef4444; }

/* ── Main Content Area ─────────────────────────────────────── */
.dv-main {
  margin-left: var(--dv-sidebar-width);
  flex:        1;
  display:     flex;
  flex-direction: column;
  min-height:  100vh;
  overflow-x:  hidden;
}

/* ── Topbar ────────────────────────────────────────────────── */
.dv-topbar {
  height:      var(--dv-topbar-h);
  background:  var(--dv-surface);
  border-bottom: 1px solid var(--dv-border);
  display:     flex;
  align-items: center;
  padding:     0 24px;
  gap:         12px;
  position:    sticky;
  top:         0;
  z-index:     100;
}

.dv-topbar .page-title {
  font-size:   17px;
  font-weight: 700;
  color:       var(--dv-text);
  margin:      0;
}

.dv-topbar .page-subtitle {
  font-size: 12px;
  color:     var(--dv-muted);
  margin:    0;
}

.dv-topbar-right {
  margin-left: auto;
  display:     flex;
  align-items: center;
  gap:         10px;
}

/* ── Page Content ──────────────────────────────────────────── */
.dv-content {
  padding: 24px;
  flex:    1;
}

/* ── Cards ─────────────────────────────────────────────────── */
.dv-card {
  background:    var(--dv-surface);
  border:        1px solid var(--dv-border);
  border-radius: var(--dv-radius);
  box-shadow:    var(--dv-shadow);
  overflow:      hidden;
}

.dv-card-header {
  padding:       14px 20px;
  border-bottom: 1px solid var(--dv-border);
  display:       flex;
  align-items:   center;
  gap:           10px;
  background:    #fafafa;
}

.dv-card-title {
  font-size:   14px;
  font-weight: 700;
  color:       var(--dv-text);
  margin:      0;
}

.dv-card-actions { margin-left: auto; display: flex; gap: 8px; }

.dv-card-body { padding: 20px; }

/* ── Stat Cards ────────────────────────────────────────────── */
.dv-stat-card {
  background:    var(--dv-surface);
  border:        1px solid var(--dv-border);
  border-radius: var(--dv-radius);
  padding:       20px;
  box-shadow:    var(--dv-shadow);
  display:       flex;
  align-items:   center;
  gap:           16px;
}

.dv-stat-icon {
  width:  48px; height: 48px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.dv-stat-icon.blue   { background: #eff6ff; color: var(--dv-primary); }
.dv-stat-icon.green  { background: #f0fdf4; color: var(--dv-success); }
.dv-stat-icon.amber  { background: #fffbeb; color: var(--dv-warning); }
.dv-stat-icon.cyan   { background: #ecfeff; color: var(--dv-info); }

.dv-stat-value {
  font-size:   26px;
  font-weight: 800;
  color:       var(--dv-text);
  line-height: 1;
}

.dv-stat-label {
  font-size: 12px;
  color:     var(--dv-muted);
  margin-top: 3px;
}

/* ── Tables ────────────────────────────────────────────────── */
.dv-table {
  width:           100%;
  border-collapse: collapse;
  font-size:       13px;
}

.dv-table thead th {
  background:    #f8fafc;
  border-bottom: 2px solid var(--dv-border);
  padding:       10px 16px;
  font-weight:   600;
  color:         var(--dv-muted);
  text-transform: uppercase;
  font-size:     11px;
  letter-spacing: .5px;
  white-space:   nowrap;
}

.dv-table tbody td {
  padding:      12px 16px;
  border-bottom: 1px solid var(--dv-border);
  vertical-align: middle;
  color:        var(--dv-text);
}

.dv-table tbody tr:last-child td { border-bottom: 0; }

.dv-table tbody tr:hover td { background: #fafafa; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size:   13px;
  border-radius: var(--dv-radius-sm);
  padding:     8px 16px;
  transition:  all .18s ease;
  display:     inline-flex;
  align-items: center;
  gap:         6px;
  cursor:      pointer;
  border:      1px solid transparent;
  line-height: 1.4;
}

.btn-primary   { background: var(--dv-primary); color: #fff; border-color: var(--dv-primary); }
.btn-primary:hover { background: var(--dv-primary-dark); border-color: var(--dv-primary-dark); color: #fff; }

.btn-success   { background: var(--dv-success); color: #fff; border-color: var(--dv-success); }
.btn-success:hover { background: #15803d; color: #fff; }

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

.btn-outline-primary {
  background: transparent;
  color:      var(--dv-primary);
  border-color: var(--dv-primary);
}
.btn-outline-primary:hover { background: var(--dv-primary); color: #fff; }

.btn-outline-secondary {
  background: transparent;
  color:      var(--dv-muted);
  border-color: var(--dv-border);
}
.btn-outline-secondary:hover { background: #f1f5f9; color: var(--dv-text); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px 8px; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-label {
  font-size:   13px;
  font-weight: 600;
  color:       var(--dv-text);
  margin-bottom: 5px;
}

.form-control, .form-select {
  font-family:   var(--font-body);
  font-size:     13.5px;
  border:        1px solid var(--dv-border);
  border-radius: var(--dv-radius-sm);
  padding:       9px 12px;
  color:         var(--dv-text);
  background:    #fff;
  transition:    border-color .18s, box-shadow .18s;
  width:         100%;
}

.form-control:focus, .form-select:focus {
  border-color: var(--dv-primary);
  box-shadow:   0 0 0 3px rgba(37,99,235,.12);
  outline:      none;
}

.form-text { font-size: 11.5px; color: var(--dv-muted); margin-top: 4px; }

.input-group .form-control { border-radius: var(--dv-radius-sm) 0 0 var(--dv-radius-sm); }
.input-group .btn           { border-radius: 0 var(--dv-radius-sm) var(--dv-radius-sm) 0; }

/* ── Alerts ────────────────────────────────────────────────── */
.dv-alert {
  padding:       12px 16px;
  border-radius: var(--dv-radius-sm);
  font-size:     13px;
  display:       flex;
  align-items:   flex-start;
  gap:           10px;
  border:        1px solid transparent;
}

.dv-alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.dv-alert-danger  { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.dv-alert-warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.dv-alert-info    { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* ── Upload Zone ───────────────────────────────────────────── */
.dv-upload-zone {
  border:        2px dashed var(--dv-border);
  border-radius: var(--dv-radius);
  padding:       40px 20px;
  text-align:    center;
  cursor:        pointer;
  transition:    all .2s ease;
  background:    #fafafa;
}

.dv-upload-zone:hover,
.dv-upload-zone.drag-over {
  border-color: var(--dv-primary);
  background:   var(--dv-primary-light);
}

.dv-upload-zone .upload-icon {
  font-size: 40px;
  color:     var(--dv-primary);
  margin-bottom: 12px;
}

.dv-upload-zone .upload-title {
  font-size:   15px;
  font-weight: 600;
  color:       var(--dv-text);
  margin-bottom: 4px;
}

.dv-upload-zone .upload-sub {
  font-size: 12.5px;
  color:     var(--dv-muted);
}

/* ── Progress ──────────────────────────────────────────────── */
.dv-progress-wrap {
  background:    #e2e8f0;
  border-radius: 999px;
  height:        8px;
  overflow:      hidden;
}

.dv-progress-bar {
  height:        100%;
  background:    var(--dv-primary);
  border-radius: 999px;
  transition:    width .4s ease;
}

.dv-progress-bar.success { background: var(--dv-success); }
.dv-progress-bar.danger  { background: var(--dv-danger); }

/* ── Column Mapping ────────────────────────────────────────── */
.mapping-row {
  display:       grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items:   center;
  gap:           12px;
  padding:       10px 0;
  border-bottom: 1px solid var(--dv-border);
}

.mapping-row:last-child { border-bottom: 0; }

.mapping-source {
  background:    #f8fafc;
  border:        1px solid var(--dv-border);
  border-radius: var(--dv-radius-sm);
  padding:       8px 12px;
  font-size:     13px;
  font-weight:   500;
  color:         var(--dv-text);
  font-family:   var(--font-mono);
}

.mapping-arrow { text-align: center; color: var(--dv-muted); font-size: 16px; }

/* ── Password field ────────────────────────────────────────── */
.password-field-wrap {
  position: relative;
}

.password-field-wrap .form-control {
  font-family: var(--font-mono);
  letter-spacing: .5px;
  padding-right: 100px;
}

.password-field-actions {
  position: absolute;
  right: 4px; top: 50%;
  transform: translateY(-50%);
  display: flex; gap: 4px;
}

.btn-gen-pass {
  background:    var(--dv-primary);
  color:         #fff;
  border:        none;
  border-radius: 4px;
  padding:       4px 8px;
  font-size:     11px;
  font-weight:   600;
  cursor:        pointer;
  white-space:   nowrap;
  transition:    background .18s;
}

.btn-gen-pass:hover { background: var(--dv-primary-dark); }

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  font-size:     11px;
  font-weight:   600;
  padding:       3px 8px;
  border-radius: 20px;
  letter-spacing: .2px;
}

/* ── Login Page ────────────────────────────────────────────── */
.dv-login-page {
  min-height:      100vh;
  display:         flex;
  align-items:     center;
  justify-content: center;
  background:      var(--dv-sidebar-bg);
  padding:         20px;
}

.dv-login-card {
  background:    #fff;
  border-radius: 14px;
  padding:       40px;
  width:         100%;
  max-width:     400px;
  box-shadow:    var(--dv-shadow-lg);
}

.dv-login-logo {
  display:         flex;
  align-items:     center;
  gap:             12px;
  justify-content: center;
  margin-bottom:   32px;
}

.dv-login-logo .logo-icon {
  width:  44px; height: 44px;
  background: var(--dv-primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: #fff;
}

.dv-login-logo .logo-name {
  font-size:   22px;
  font-weight: 800;
  color:       var(--dv-text);
  letter-spacing: -.5px;
}

/* ── Utilities ─────────────────────────────────────────────── */
.text-mono  { font-family: var(--font-mono); }
.text-muted { color: var(--dv-muted) !important; }
.fw-600     { font-weight: 600; }
.fw-700     { font-weight: 700; }
.gap-2      { gap: 8px; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .dv-sidebar { transform: translateX(-100%); }
  .dv-sidebar.open { transform: translateX(0); }
  .dv-main { margin-left: 0; }
  .dv-content { padding: 16px; }
}

/* ── Column Mapping UI ─────────────────────────────────────── */
.sf-item:hover,
.ec-item:hover {
  background: #f8fafc !important;
}

.sf-item.selected {
  background: #eff6ff !important;
  border-left: 3px solid var(--dv-primary);
}

.sf-item.is-mapped {
  background: #f0fdf4 !important;
}

.ec-item.is-mapped {
  background: #f0fdf4 !important;
  cursor: default;
}

.ec-item.available:hover {
  background: #f0fdf4 !important;
}

/* ── Stepper ───────────────────────────────────────────────── */
.dv-stepper {
  display:     flex;
  align-items: center;
  gap:         0;
}

.dv-step {
  display:     flex;
  align-items: center;
  gap:         10px;
  flex-shrink: 0;
}

.step-circle {
  width:         32px;
  height:        32px;
  border-radius: 50%;
  background:    var(--dv-border);
  color:         var(--dv-muted);
  font-size:     13px;
  font-weight:   700;
  display:       flex;
  align-items:   center;
  justify-content: center;
  transition:    all .25s ease;
  flex-shrink:   0;
}

.step-label {
  font-size:   13px;
  font-weight: 600;
  color:       var(--dv-muted);
  white-space: nowrap;
  transition:  color .25s;
}

.dv-step.active .step-circle {
  background: var(--dv-primary);
  color:      #fff;
  box-shadow: 0 0 0 4px rgba(37,99,235,.15);
}

.dv-step.active .step-label { color: var(--dv-primary); }

.dv-step.done .step-circle {
  background: var(--dv-success);
  color:      #fff;
}

.dv-step.done .step-label { color: var(--dv-success); }

.dv-step-line {
  flex:          1;
  height:        2px;
  background:    var(--dv-border);
  min-width:     24px;
  max-width:     80px;
  margin:        0 4px;
  transition:    background .25s;
}

.dv-step-line.done { background: var(--dv-success); }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up { animation: fadeInUp .3s ease forwards; }

/* ── Modal tweaks ──────────────────────────────────────────── */
.modal-content  { border-radius: var(--dv-radius); border: 0; }
.modal-header   { border-bottom: 1px solid var(--dv-border); padding: 16px 20px; }
.modal-footer   { border-top: 1px solid var(--dv-border); padding: 12px 20px; }
.modal-body     { padding: 20px; }
.modal-title    { font-weight: 700; font-size: 15px; }