/* ============================================================
   NUCLEOS — Design System SolidApps Technology (Dark Mode)
   ============================================================ */

/* Variables — palette dark officielle SolidApps */
:root {
  /* Bleus */
  --primary:          #58A6FF;
  --primary-dark:     #1F6FEB;
  --primary-light:    rgba(31,111,235,0.20);
  --primary-ultra:    rgba(31,111,235,0.09);

  /* Verts */
  --accent:           #C9D94A;
  --accent-light:     #D6E85B;
  --accent-dark:      #9EAB30;

  /* Surfaces dark */
  --bg:               #0D1117;
  --bg-secondary:     #161B22;
  --surface:          #1C2128;
  --surface-2:        #22272E;

  /* Texte */
  --text:             #E6EDF3;
  --text-secondary:   #8B949E;

  /* Utilitaires */
  --white:            #FFFFFF;
  --card-bg:          #161B22;
  --border:           #30363D;
  --danger:           #F85149;
  --danger-bg:        rgba(248,81,73,0.12);
  --success:          #3FB950;
  --success-bg:       rgba(63,185,80,0.12);
  --warning:          #D29922;
  --warning-bg:       rgba(210,153,34,0.12);

  /* Ombres */
  --shadow-sm:        0 1px 4px rgba(0,0,0,0.50);
  --shadow-md:        0 4px 20px rgba(0,0,0,0.60);
  --shadow-lg:        0 8px 32px rgba(0,0,0,0.70);

  /* Dimensions */
  --radius-sm:        8px;
  --radius-md:        12px;
  --radius-lg:        16px;
  --radius-xl:        24px;
  --transition:       all 0.18s ease;
  --font:             'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-heading:     'Manrope', 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

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

html, body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}
h1:focus { outline: none; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: #79B9FF; text-decoration: underline; }

/* ── Buttons ── */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 1.125rem;
  transition: var(--transition);
  border: 1.5px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
}
.btn-primary:hover {
  background: #388BFD;
  border-color: #388BFD;
  color: var(--white);
  box-shadow: 0 0 0 3px rgba(31,111,235,0.30);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-success {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #0D1117;
}
.btn-success:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0D1117;
  transform: translateY(-1px);
}

.btn-outline-primary {
  background: transparent;
  border-color: var(--primary-dark);
  color: var(--primary);
}
.btn-outline-primary:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-secondary);
}
.btn-outline-secondary:hover {
  background: var(--surface-2);
  border-color: #484F58;
  color: var(--text);
}

.btn-outline-success {
  background: transparent;
  border-color: var(--accent-dark);
  color: var(--accent);
}
.btn-outline-success:hover {
  background: rgba(201,217,74,0.10);
  color: var(--accent-light);
}

.btn-outline-danger {
  background: transparent;
  border-color: rgba(248,81,73,0.40);
  color: var(--danger);
}
.btn-outline-danger:hover {
  background: var(--danger-bg);
  border-color: var(--danger);
}

.btn-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover {
  background: var(--surface-2);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: var(--white);
}
.btn-danger:hover {
  background: #FF4A42;
  color: var(--white);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}
.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn:focus, .btn:active:focus {
  box-shadow: 0 0 0 3px rgba(31,111,235,0.30);
  outline: none;
}
.btn:disabled, .btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ── Cards ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.card-header {
  padding: 0.875rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  color: var(--text);
  font-size: 0.9375rem;
}
.card-header.card-header-brand {
  background: linear-gradient(135deg, #0D2340 0%, #071628 100%);
  color: var(--white);
  border-bottom: none;
}
.card-body  { padding: 1.25rem; background: var(--card-bg); }
.card-footer {
  padding: 0.875rem 1.25rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

/* ── Forms ── */
.form-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text);
  margin-bottom: 0.375rem;
  display: block;
}
.form-control, .form-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.875rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--surface);
  transition: var(--transition);
  width: 100%;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 3px rgba(31,111,235,0.20);
  outline: none;
  background: var(--surface-2);
}
.form-control::placeholder { color: #484F58; }

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

.form-text { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; }

.form-check-input {
  background-color: var(--surface);
  border-color: var(--border);
}
.form-check-input:checked {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(31,111,235,0.25);
}
.form-select option {
  background: var(--surface);
  color: var(--text);
}

/* ── Badges ── */
.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.3em 0.65em;
  border-radius: 6px;
  letter-spacing: 0.02em;
}
.bg-primary   { background: var(--primary-dark) !important; color: #fff !important; }
.bg-success   { background: rgba(63,185,80,0.18) !important; color: var(--success) !important; border: 1px solid rgba(63,185,80,0.35) !important; }
.bg-warning   { background: rgba(210,153,34,0.18) !important; color: var(--warning) !important; border: 1px solid rgba(210,153,34,0.35) !important; }
.bg-secondary { background: var(--surface-2) !important; color: var(--text-secondary) !important; border: 1px solid var(--border) !important; }
.bg-info      { background: var(--primary-light) !important; color: var(--primary) !important; }
.bg-danger    { background: var(--danger-bg) !important; color: var(--danger) !important; border: 1px solid rgba(248,81,73,0.35) !important; }
.bg-light     { background: var(--surface) !important; color: var(--text-secondary) !important; }

/* ── Progress ── */
.progress {
  background: var(--surface-2);
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  border-radius: 99px;
  transition: width 0.4s ease;
}
.progress-bar.bg-success {
  background: linear-gradient(90deg, var(--accent-dark), var(--accent)) !important;
}
.progress-bar-striped.progress-bar-animated {
  background: linear-gradient(45deg, rgba(255,255,255,.1) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.1) 50%, rgba(255,255,255,.1) 75%, transparent 75%, transparent);
  background-size: 1rem 1rem;
  animation: progress-bar-stripes 1s linear infinite;
}

/* ── Alerts ── */
.alert {
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.125rem;
  border: 1px solid transparent;
  font-size: 0.9rem;
}
.alert-info    { background: var(--primary-ultra); border-color: var(--primary-light); color: var(--primary); }
.alert-success { background: var(--success-bg); border-color: rgba(63,185,80,0.30); color: var(--success); }
.alert-warning { background: var(--warning-bg); border-color: rgba(210,153,34,0.30); color: var(--warning); }
.alert-danger  { background: var(--danger-bg);  border-color: rgba(248,81,73,0.30);  color: var(--danger); }

/* ── Tables ── */
.table {
  color: var(--text);
  font-size: 0.9rem;
  border-collapse: separate;
  border-spacing: 0;
}
.table th {
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  background: var(--surface);
}
.table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  background: var(--card-bg);
}
.table-hover tbody tr:hover td { background: var(--surface); }
.table-dark th { background: #0D2340; color: var(--text); border-color: var(--border); }

/* ── Modal ── */
.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.modal-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 1.125rem 1.5rem;
}
.modal-title { font-family: var(--font-heading); font-weight: 700; font-size: 1.05rem; color: var(--text); }
.modal-body  { padding: 1.5rem; color: var(--text); }
.modal-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 1rem 1.5rem;
  gap: 0.5rem;
}
.modal-backdrop { background-color: #000; }
.modal-backdrop.fade.show { opacity: 0.7; }
.btn-close { filter: invert(1); }

/* ── List group ── */
.list-group-item {
  border-left: none;
  border-right: none;
  border-color: var(--border);
  padding: 0.875rem 1.25rem;
  background: var(--card-bg);
  color: var(--text);
}
.list-group-item:first-child { border-top: none; }
.list-group-item:last-child  { border-bottom: none; }

/* ── Scale buttons ── */
.scale-buttons { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.scale-btn {
  min-width: 48px;
  height: 48px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  max-width: 64px;
}
.scale-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-ultra);
}
.scale-btn.active {
  border-color: var(--primary-dark);
  background: var(--primary-dark);
  color: var(--white);
  box-shadow: 0 0 0 3px rgba(31,111,235,0.30);
}

/* ── Tag chips ── */
.tag-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.25rem; }

.tag-chip {
  padding: 0.4rem 0.875rem;
  border: 1.5px solid var(--border);
  border-radius: 99px;
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.tag-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-ultra);
}
.tag-chip.selected {
  border-color: var(--primary-dark);
  background: var(--primary-dark);
  color: var(--white);
}

/* ── Save indicator ── */
.q-save-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.375rem;
  transition: all 0.2s;
}
.q-save-indicator.saved { color: var(--success); }

/* ── Spinners ── */
.spinner-border {
  border-color: var(--surface-2);
  border-top-color: var(--primary);
}
.spinner-border.text-primary {
  border-color: var(--surface-2);
  border-top-color: var(--primary);
}

/* ── Loading / Empty states ── */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
  gap: 1rem;
}

/* ── AI advice block ── */
.ai-advice {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--primary-ultra);
  border-left: 3px solid var(--primary-dark);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.ai-advice-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* ── Top bar (admin) ── */
.top-row, .admin-topbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

/* ── Blazor error ── */
.blazor-error-boundary {
  background: var(--danger-bg);
  border: 1px solid rgba(248,81,73,0.3);
  border-radius: var(--radius-sm);
  padding: 1rem 1rem 1rem 3.5rem;
  color: var(--danger);
}
.blazor-error-boundary::after { content: "Une erreur est survenue."; }

#blazor-error-ui {
  background: var(--warning-bg);
  border-top: 1px solid rgba(210,153,34,0.30);
  bottom: 0;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.4);
  display: none;
  left: 0;
  padding: 0.625rem 1.25rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
  font-size: 0.875rem;
  color: var(--warning);
}
#blazor-error-ui .dismiss {
  cursor: pointer;
  position: absolute;
  right: 0.75rem;
  top: 0.5rem;
  opacity: 0.6;
}
#blazor-error-ui .dismiss:hover { opacity: 1; }

/* ── Validation ── */
.valid.modified:not([type=checkbox]) { border-color: var(--accent) !important; }
.invalid { border-color: var(--danger) !important; }
.validation-message { color: var(--danger); font-size: 0.8rem; margin-top: 0.25rem; display: block; }

/* ── Page utilities ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-header h1 { font-size: 1.5rem; margin: 0; }

.text-muted  { color: var(--text-secondary) !important; }
.fw-semibold { font-weight: 600; }
.fw-bold     { font-weight: 700; }

.darker-border-checkbox.form-check-input { border-color: var(--border); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .btn-lg { padding: 0.875rem 1.25rem; font-size: 0.95rem; }
  .card-body { padding: 1rem; }
  .modal-body { padding: 1.125rem; }
  .table-responsive { font-size: 0.84rem; }
  .scale-btn { height: 44px; }
}