/* ── Datatics DealCraft · Design System ─────────────────────────────────── */

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

:root {
  --primary:        #4CBFB0;
  --primary-dim:    rgba(76,191,176,0.15);
  --primary-glow:   rgba(76,191,176,0.3);
  --primary-dark:   #2a8a80;
  --secondary:      #94a3b8;
  --bg:             #07090f;
  --bg2:            #0d1117;
  --bg3:            #111827;
  --surface:        rgba(255,255,255,0.04);
  --surface-hover:  rgba(255,255,255,0.07);
  --border:         rgba(255,255,255,0.08);
  --border-accent:  rgba(76,191,176,0.25);
  --text:           #e2e8f0;
  --text-muted:     #94a3b8;
  --text-faint:     #475569;
  --success:        #10b981;
  --danger:         #ef4444;
  --warning:        #f59e0b;
  --radius:         10px;
  --radius-lg:      16px;
  --sidebar-w:      230px;
  --transition:     0.18s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Layout ────────────────────────────────────────────────────────────── */

#app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────────────────── */

#sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 28px 24px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-logo img {
  height: 36px;
  filter: brightness(1.1);
}
.sidebar-logo-text {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-faint);
  padding: 16px 24px 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 24px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
  border-left: 3px solid transparent;
  cursor: pointer;
}
.nav-link:hover {
  color: var(--text);
  background: var(--surface-hover);
}
.nav-link.active {
  color: var(--primary);
  background: var(--primary-dim);
  border-left-color: var(--primary);
}
.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.8;
}
.nav-link.active .nav-icon { opacity: 1; }

.sidebar-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}
.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--primary-dim);
  border: 1px solid var(--primary-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: var(--primary);
  flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-faint); text-transform: capitalize; }
.logout-btn {
  background: none; border: none; cursor: pointer; color: var(--text-faint);
  padding: 4px; border-radius: 4px; transition: color var(--transition);
  flex-shrink: 0;
}
.logout-btn:hover { color: var(--danger); }

/* ── Main content ──────────────────────────────────────────────────────── */

#app-root {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 32px 36px;
  min-height: 100vh;
  max-width: 1400px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}
.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Cards / Glass ─────────────────────────────────────────────────────── */

.glass-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--border-accent); transform: translateY(-2px); }
.stat-card::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  border-radius: 50%;
}
.stat-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 4px;
}
.stat-sub { font-size: 13px; color: var(--text-faint); margin-top: 8px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

/* ── Buttons ───────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #07090f;
}
.btn-primary:hover { background: #5dd4c4; box-shadow: 0 0 20px var(--primary-glow); }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--border-accent); }
.btn-danger {
  background: rgba(239,68,68,0.1);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.2);
}
.btn-danger:hover { background: rgba(239,68,68,0.2); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 7px 12px;
}
.btn-ghost:hover { color: var(--text); background: var(--surface-hover); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Table ─────────────────────────────────────────────────────────────── */

.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
thead th {
  background: rgba(255,255,255,0.03);
  padding: 13px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--surface-hover); }
tbody td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text);
  vertical-align: middle;
}
.td-muted { color: var(--text-muted); font-size: 13px; }
.td-code {
  font-family: monospace;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-dim);
  padding: 3px 8px;
  border-radius: 5px;
}
.td-actions { display: flex; gap: 6px; }

/* ── Forms ─────────────────────────────────────────────────────────────── */

.form-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}
.form-section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-accent);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}
.form-group select option { background: var(--bg3); }
.form-group textarea { resize: vertical; min-height: 100px; }

/* ── Line items grid ───────────────────────────────────────────────────── */

.items-table-wrap {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 16px;
}
.items-table thead th {
  background: rgba(0,0,0,0.3);
  color: var(--text-faint);
  padding: 10px 12px;
}
.items-table tbody td { padding: 8px 8px; }
.items-table tbody td input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}
.items-table tbody td input:focus { border-color: var(--primary); }
.items-table tbody td input[readonly] { color: var(--text-muted); cursor: default; background: rgba(0,0,0,0.2); }
.items-table .td-del { text-align: center; width: 40px; }
.del-row-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-faint); font-size: 16px; padding: 4px; border-radius: 4px;
  transition: color var(--transition);
}
.del-row-btn:hover { color: var(--danger); }

.totals-box {
  display: flex;
  justify-content: flex-end;
}
.totals-inner {
  min-width: 280px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.totals-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.totals-row:last-child {
  border-bottom: none;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  background: var(--primary-dim);
}
.totals-row span:last-child {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.totals-row:last-child span:last-child { color: var(--primary); }

/* ── Tags / badges ─────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-primary { background: var(--primary-dim); color: var(--primary); border: 1px solid var(--primary-glow); }
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,0.1);  color: var(--danger);  }
.badge-muted   { background: var(--surface); color: var(--text-muted); border: 1px solid var(--border); }

/* ── Auth page ─────────────────────────────────────────────────────────── */

#auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
#auth-page::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(76,191,176,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
}
.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}
.auth-logo img { height: 56px; }
.auth-logo-sub {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--primary);
  margin-top: 12px;
  font-weight: 600;
}
.auth-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.auth-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.auth-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.auth-error.visible { display: block; }
.auth-success {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.2);
  color: var(--success);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.auth-success.visible { display: block; }

/* ── Toast notifications ────────────────────────────────────────────────── */

#toast-container {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 14px;
  color: var(--text);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  animation: toastIn 0.25s ease;
  min-width: 260px;
  max-width: 360px;
  pointer-events: all;
}
.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.error   { border-color: rgba(239,68,68,0.4); }
.toast.info    { border-color: var(--border-accent); }
@keyframes toastIn { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }

/* ── Modal ─────────────────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 500px;
  position: relative;
}
.modal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
}

/* ── Tabs ──────────────────────────────────────────────────────────────── */

.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 24px;
  width: fit-content;
}
.tab {
  padding: 8px 20px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  border: none;
  background: none;
}
.tab:hover { color: var(--text); background: var(--surface-hover); }
.tab.active { background: var(--primary); color: #07090f; }

/* ── Empty state ───────────────────────────────────────────────────────── */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  color: var(--text-faint);
  text-align: center;
}
.empty-icon { font-size: 40px; margin-bottom: 16px; opacity: 0.4; }
.empty-title { font-size: 16px; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; }
.empty-sub { font-size: 13px; }

/* ── Loading ───────────────────────────────────────────────────────────── */

.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px;
}

/* ── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); width: 230px; }
  #app-root { margin-left: 0; padding: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ── Print ─────────────────────────────────────────────────────────────── */

@media print {
  #sidebar, .no-print { display: none !important; }
  #app-root { margin: 0; padding: 0; }
}