/* ===================================================================
   DevOps Task Manager — Stile A: Linear/Vercel inspired
   Design system: tipografia Inter, sidebar scura, accenti indigo,
   bordi sottili, micro-interazioni, dark mode ready.
   =================================================================== */

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

:root {
  /* Layout */
  --sidebar-w: 240px;
  --sidebar-w-collapsed: 60px;
  --topbar-h: 56px;

  /* Surfaces (light) */
  --bg:          #ffffff;
  --bg-soft:     #fafafa;
  --bg-mute:     #f4f4f5;
  --bg-card:     #ffffff;

  /* Text */
  --text:        #18181b;
  --text-soft:   #52525b;
  --text-mute:   #a1a1aa;
  --text-faint:  #d4d4d8;

  /* Borders */
  --border:        #e4e4e7;
  --border-soft:   #f4f4f5;
  --border-strong: #d4d4d8;

  /* Accent (indigo) */
  --accent:        #6366f1;
  --accent-hover:  #4f46e5;
  --accent-active: #4338ca;
  --accent-bg:     #eef2ff;
  --accent-fg:     #4338ca;

  /* Semantic states */
  --danger:        #dc2626;
  --danger-bg:     #fef2f2;
  --danger-border: #fecaca;
  --danger-fg:     #991b1b;

  --warn:          #d97706;
  --warn-bg:       #fffbeb;
  --warn-border:   #fde68a;
  --warn-fg:       #92400e;

  --success:       #059669;
  --success-bg:    #ecfdf5;
  --success-border:#a7f3d0;
  --success-fg:    #065f46;

  --info:          #0284c7;
  --info-bg:       #f0f9ff;
  --info-fg:       #075985;

  /* Sidebar (dark) */
  --side-bg:       #0a0a0a;
  --side-bg-2:     #18181b;
  --side-text:     #a1a1aa;
  --side-text-on:  #fafafa;
  --side-border:   #27272a;
  --side-hover:    #1f1f23;

  /* Radius */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 10px;
  --r-xl: 14px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-focus: 0 0 0 3px rgba(99,102,241,0.18);

  /* Tipografia */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Categorie task (semantici) */
  --cat-todo:           #71717a;
  --cat-todo-next:      #2563eb;
  --cat-in-progress:    #d97706;
  --cat-in-review:      #0891b2;
  --cat-ready-test:     #7c3aed;
  --cat-ready-staging:  #059669;
  --cat-rejected:       #dc2626;
  --cat-merged:         #14b8a6;
  --cat-closed:         #a1a1aa;
}

/* ============= Reset di base ============= */

html, body {
  font-family: var(--font);
  font-size: 14px;
  font-feature-settings: 'cv02','cv03','cv04','cv11';
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
}

* { box-sizing: border-box; }

.wrapper { max-width: none; margin: 0; padding: 0; }

/* ============= Sidebar ============= */

.spa-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--side-bg);
  color: var(--side-text);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width .2s cubic-bezier(.4,0,.2,1);
  border-right: 1px solid var(--side-border);
}
.spa-sidebar.collapsed { width: var(--sidebar-w-collapsed); }

.spa-sidebar-header {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--side-border);
  min-height: var(--topbar-h);
  box-sizing: border-box;
}
.spa-sidebar-header img {
  background: var(--side-text-on);
  padding: 4px 6px;
  border-radius: var(--r-sm);
  height: 28px;
  width: auto;
  flex-shrink: 0;
}
.spa-sidebar-header .brand-text {
  font-weight: 600;
  font-size: 14px;
  color: var(--side-text-on);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.spa-sidebar.collapsed .brand-text { display: none; }

.spa-sidebar-nav {
  flex: 1;
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.spa-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 7px 10px;
  border-radius: var(--r-sm);
  color: var(--side-text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s, color .12s;
}
.spa-nav-link:hover {
  background: var(--side-hover);
  color: var(--side-text-on);
}
.spa-nav-link.active {
  background: var(--side-bg-2);
  color: var(--side-text-on);
}
.spa-nav-link.active::before {
  content: '';
  width: 3px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
  margin-right: -7px;
  margin-left: -10px;
}
.spa-nav-link .nav-icon {
  font-size: 15px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.spa-nav-link .nav-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.spa-nav-link .nav-badge {
  background: var(--danger);
  color: #fff;
  font-size: 10.5px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  min-width: 16px;
  text-align: center;
  line-height: 1.4;
}
.spa-nav-link .nav-badge.warn { background: var(--warn); }
.spa-nav-link .nav-badge.info { background: var(--accent); }

.spa-sidebar.collapsed .nav-label,
.spa-sidebar.collapsed .nav-badge { display: none; }
.spa-sidebar.collapsed .spa-nav-link.active::before { display: none; }

.spa-sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--side-border);
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.01em;
}
.spa-sidebar.collapsed .spa-sidebar-footer { display: none; }

.spa-sidebar-toggle {
  position: absolute;
  top: 18px;
  right: -12px;
  background: var(--side-bg-2);
  color: var(--side-text-on);
  border: 1px solid var(--side-border);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-size: 12px;
  z-index: 101;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .12s;
}
.spa-sidebar-toggle:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* ============= Main content ============= */

.spa-main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  transition: margin-left .2s cubic-bezier(.4,0,.2,1);
  background: var(--bg);
}
.spa-sidebar.collapsed ~ .spa-main { margin-left: var(--sidebar-w-collapsed); }

.spa-topbar {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 50;
  border-bottom: 1px solid var(--border);
}

.spa-topbar h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  background: none;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: 0;
  letter-spacing: -0.015em;
}
.spa-topbar h1 .page-icon {
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.spa-topbar-actions { display: flex; gap: 8px; align-items: center; }

.spa-topbar-actions span,
.spa-topbar-actions button {
  font-size: 12.5px;
  color: var(--text-soft);
}
.spa-topbar-actions .refresh-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 6px 12px;
  border-radius: var(--r-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background .12s;
  font-size: 12.5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.spa-topbar-actions .refresh-btn:hover { background: var(--accent-hover); }
.spa-topbar-actions .refresh-btn .spinner { display: none; }

.spa-topbar-actions .filter-export-pdf {
  background: var(--bg);
  color: var(--text-soft);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: 12.5px;
  transition: background .12s, border-color .12s;
}
.spa-topbar-actions .filter-export-pdf:hover {
  background: var(--bg-mute);
  border-color: var(--border-strong);
}

.spa-page {
  padding: 24px 28px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ============= Cards / sezioni ============= */

.spa-card {
  background: var(--bg-card);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  padding: 16px 18px;
  margin-bottom: 16px;
}

.spa-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}
.spa-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px 16px;
  transition: border-color .15s;
}
.spa-stat-card:hover { border-color: var(--border-strong); }
.spa-stat-card .stat-label {
  font-size: 11px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  font-weight: 500;
}
.spa-stat-card .stat-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.025em;
  line-height: 1;
}
.spa-stat-card.danger .stat-value  { color: var(--danger); }
.spa-stat-card.warn .stat-value    { color: var(--warn); }
.spa-stat-card.success .stat-value { color: var(--success); }
.spa-stat-card.info .stat-value    { color: var(--accent); }

/* Loading splash */
.spa-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  flex-direction: column;
  gap: 16px;
  color: var(--text-mute);
}
.spa-loading .spinner-big {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============= Tema scuro ============= */

body.theme-dark {
  --bg:        #09090b;
  --bg-soft:   #0c0c0e;
  --bg-mute:   #18181b;
  --bg-card:   #0c0c0e;
  --text:      #fafafa;
  --text-soft: #d4d4d8;
  --text-mute: #71717a;
  --text-faint:#3f3f46;
  --border:        #27272a;
  --border-soft:   #18181b;
  --border-strong: #3f3f46;
  --side-bg:    #050505;
  --side-bg-2:  #0c0c0e;
  --side-border:#1f1f23;
  --accent-bg:  #1e1b4b;
  --accent-fg:  #c7d2fe;
  --danger-bg:  #2c0b0b;
  --danger-fg:  #fca5a5;
  --warn-bg:    #2a1c00;
  --warn-fg:    #fcd34d;
  --success-bg: #042f1a;
  --success-fg: #6ee7b7;
}
body.theme-dark .spa-topbar {
  background: rgba(9,9,11,0.85);
  border-bottom-color: var(--border);
}

/* ============= Responsive ============= */

@media (max-width: 768px) {
  .spa-sidebar { width: var(--sidebar-w-collapsed); }
  .spa-sidebar.expanded { width: var(--sidebar-w); }
  .spa-main { margin-left: var(--sidebar-w-collapsed); }
  .spa-page { padding: 16px; }
}

/* ============= Hide elementi non più usati ============= */

.legacy-only { display: none !important; }