/* ══════════════════════════════════════════════════════════════════
   BENNY Enterprise — Design System
   Flay Logistics · Dark Theme · Glassmorphism
   ══════════════════════════════════════════════════════════════════ */

:root {
  /* ─── Colors ─── */
  --bg-primary: #0b0e14;
  --bg-secondary: #0f121a;
  --bg-card: #161b26;
  --bg-card-hover: #1c2230;
  --bg-elevated: #222a38;
  --border-color: rgba(255, 255, 255, 0.08);
  --bg-input: #0d1117;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-blue: #e32128; /* Flay Red */
  --accent-blue-light: #ff4d54;
  --accent-indigo: #6366f1;
  --accent-green: #22c55e;
  --accent-green-dark: #16a34a;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #a855f7;
  --accent-cyan: #06b6d4;

  --gradient-primary: linear-gradient(135deg, #e32128, #b21419);
  --gradient-success: linear-gradient(135deg, #22c55e, #06b6d4);
  --gradient-warning: linear-gradient(135deg, #f59e0b, #ef4444);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 69, 0.8), rgba(26, 32, 53, 0.6));

  /* ─── Sizing ─── */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  /* ─── Shadows ─── */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 20px rgba(59,130,246,0.15);

  /* ─── Transitions ─── */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
}
a { color: var(--accent-blue-light); text-decoration: none; }
a:hover { text-decoration: underline; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }
table { border-collapse: collapse; width: 100%; }

.hidden { display: none !important; }

/* ═══════════════════════════════════════════════════════════════════
   AUTH SCREEN
   ═══════════════════════════════════════════════════════════════════ */
.auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(99,102,241,0.06) 0%, transparent 50%);
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}
.auth-logo {
  text-align: center;
  margin-bottom: 36px;
}
.auth-logo-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 12px;
}
.auth-logo h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 3px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.auth-logo p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 4px;
}
.brand-img {
  width: 160px;
  height: auto;
  margin: 0 auto 16px;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(227, 33, 40, 0.2));
}
.auth-error {
  color: var(--accent-red);
  font-size: 13px;
  margin-top: 12px;
  text-align: center;
  min-height: 18px;
}
.auth-footer {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 24px;
}

/* ═══════════════════════════════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════════════════════════════ */
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.form-group input::placeholder { color: var(--text-muted); }
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

/* ═══════════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 13px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}
.btn-primary:hover { box-shadow: 0 4px 16px rgba(59,130,246,0.4); }
.btn-success {
  background: var(--gradient-success);
  color: white;
}
.btn-danger {
  background: var(--accent-red);
  color: white;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue-light);
  background: rgba(59,130,246,0.06);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.btn-full { width: 100%; justify-content: center; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
  padding: 6px;
  border-radius: 6px;
  transition: all var(--transition);
  line-height: 1;
}
.btn-icon:hover { color: var(--text-primary); background: rgba(255,255,255,0.08); }

/* ═══════════════════════════════════════════════════════════════════
   LAYOUT: SIDEBAR + MAIN
   ═══════════════════════════════════════════════════════════════════ */
.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ─── Sidebar ─── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-slow);
  z-index: 100;
}
.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-logo {
  font-size: 28px;
}
.sidebar-header h2 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sidebar-brand-img {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 2px 8px rgba(227, 33, 40, 0.2));
}
.sidebar-subtitle {
  font-size: 11px;
  color: var(--text-muted);
}
.sidebar-nav {
  list-style: none;
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  margin-bottom: 2px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 13px;
}
.nav-item:hover {
  background: rgba(59,130,246,0.08);
  color: var(--text-primary);
}
.nav-item.active {
  background: rgba(59,130,246,0.12);
  color: var(--accent-blue-light);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  width: 3px;
  height: 24px;
  background: var(--accent-blue);
  border-radius: 0 3px 3px 0;
}
.nav-icon { font-size: 18px; width: 24px; text-align: center; }
.nav-divider {
  height: 1px;
  background: var(--border-color);
  margin: 10px 14px;
}
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
}
.user-name { display: block; font-size: 13px; font-weight: 600; color: var(--text-primary); }
.user-role { display: block; font-size: 11px; color: var(--text-muted); text-transform: capitalize; }

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}
.content-header {
  height: var(--header-height);
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}
.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-left h1 {
  font-size: 18px;
  font-weight: 700;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.search-box input {
  width: 260px;
  padding: 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: all var(--transition);
}
.search-box input:focus {
  border-color: var(--accent-blue);
  width: 320px;
}
.search-box input::placeholder { color: var(--text-muted); }
.header-date { font-size: 12px; color: var(--text-muted); }
.sidebar-toggle { display: none; }

/* ─── Page Container ─── */
.page-container {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
  scroll-behavior: smooth;
}
.page-container::-webkit-scrollbar { width: 6px; }
.page-container::-webkit-scrollbar-track { background: transparent; }
.page-container::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* ═══════════════════════════════════════════════════════════════════
   CARDS & WIDGETS
   ═══════════════════════════════════════════════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  transition: all var(--transition);
}
.card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.card-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}
.card-grid {
  display: grid;
  gap: 20px;
}
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

/* KPI Cards */
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 22px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}
.kpi-card.blue::before { background: var(--gradient-primary); }
.kpi-card.green::before { background: var(--gradient-success); }
.kpi-card.amber::before { background: var(--accent-amber); }
.kpi-card.purple::before { background: var(--accent-purple); }
.kpi-card.red::before { background: var(--accent-red); }
.kpi-card.cyan::before { background: var(--accent-cyan); }

.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.kpi-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}
.kpi-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}
.kpi-icon {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 28px;
  opacity: 0.3;
}

/* ═══════════════════════════════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════════════════════════════ */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  z-index: 5;
}
.data-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition);
  cursor: pointer;
}
.data-table tbody tr:hover {
  background: rgba(59,130,246,0.04);
}
.data-table tbody td {
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  vertical-align: middle;
}
.data-table tbody td:first-child { color: var(--text-primary); font-weight: 600; }

/* ═══════════════════════════════════════════════════════════════════
   BADGES & STATUS
   ═══════════════════════════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.badge-bozza       { background: rgba(100,116,139,0.15); color: #94a3b8; }
.badge-in_revisione { background: rgba(245,158,11,0.15); color: #f59e0b; }
.badge-inviato     { background: rgba(59,130,246,0.15); color: #60a5fa; }
.badge-accettato   { background: rgba(34,197,94,0.15); color: #22c55e; }
.badge-in_produzione { background: rgba(168,85,247,0.15); color: #a855f7; }
.badge-in_imballo  { background: rgba(6,182,212,0.15); color: #06b6d4; }
.badge-spedito     { background: rgba(99,102,241,0.15); color: #818cf8; }
.badge-consegnato  { background: rgba(34,197,94,0.2); color: #4ade80; }
.badge-perso       { background: rgba(239,68,68,0.15); color: #ef4444; }
.badge-annullato   { background: rgba(100,116,139,0.15); color: #64748b; }

/* ═══════════════════════════════════════════════════════════════════
   KANBAN BOARD
   ═══════════════════════════════════════════════════════════════════ */
.kanban-board {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 12px;
  min-height: 400px;
}
.kanban-column {
  min-width: 280px;
  max-width: 320px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
}
.kanban-column-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.kanban-column-header h4 {
  font-size: 13px;
  font-weight: 700;
}
.kanban-count {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
}
.kanban-cards {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.kanban-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.kanban-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.kanban-card-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.kanban-card-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.kanban-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  font-size: 12px;
}

/* ═══════════════════════════════════════════════════════════════════
   MODAL
   ═══════════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  width: 90%;
  max-width: 640px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}
.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ═══════════════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
   ═══════════════════════════════════════════════════════════════════ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: white;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 3.7s;
  min-width: 280px;
  max-width: 420px;
}
.toast-success { background: linear-gradient(135deg, #16a34a, #059669); }
.toast-error   { background: linear-gradient(135deg, #dc2626, #b91c1c); }
.toast-info    { background: linear-gradient(135deg, #2563eb, #4f46e5); }
.toast-warning { background: linear-gradient(135deg, #d97706, #ea580c); }

/* ═══════════════════════════════════════════════════════════════════
   LOADING & EMPTY STATES
   ═══════════════════════════════════════════════════════════════════ */
.page-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: var(--text-muted);
}
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-size: 16px; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 13px; max-width: 400px; margin: 0 auto; }

/* ═══════════════════════════════════════════════════════════════════
   TABS
   ═══════════════════════════════════════════════════════════════════ */
.tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}
.tab {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  margin-bottom: -1px;
}
.tab:hover { color: var(--text-secondary); }
.tab.active {
  color: var(--accent-blue-light);
  border-bottom-color: var(--accent-blue);
}

/* ═══════════════════════════════════════════════════════════════════
   UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════════ */
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }
.text-currency { font-variant-numeric: tabular-nums; font-weight: 600; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.font-mono { font-family: 'JetBrains Mono', 'Consolas', monospace; }

/* ═══════════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════════ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -var(--sidebar-width);
    z-index: 200;
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { left: 0; }
  .sidebar-toggle { display: block !important; }
  .card-grid-4, .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
  .search-box { display: none; }
  .kanban-board { min-height: 300px; }
  .page-container { padding: 16px; }
}