/* ============================================================
   ExpenseFlow — Variables & Reset global
   ============================================================ */

/* ── Thème Sombre (défaut) ── */
:root {
  --bg-deep:       #0D1B2A;
  --bg-card:       #112236;
  --bg-elevated:   #172f47;
  --accent:        #2EE5A8;
  --accent-dark:   #1fc48e;
  --accent-dim:    rgba(46,229,168,.15);
  --text-primary:  #E8F0F7;
  --text-secondary:#8899aa;
  --text-muted:    #526070;
  --border:        rgba(255,255,255,.08);
  --danger:        #E53935;
  --warning:       #F5A623;
  --info:          #4A90E2;
  --success:       #2EE5A8;
  --purple:        #7B61FF;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --shadow:     0 4px 24px rgba(0,0,0,.4);
  --transition: .2s ease;
}

/* ── Thème Clair ── */
html.theme-light {
  --bg-deep:       #F0F4F8;
  --bg-card:       #FFFFFF;
  --bg-elevated:   #E4ECF4;
  --accent:        #0D9B6E;
  --accent-dark:   #0a7d59;
  --accent-dim:    rgba(13,155,110,.12);
  --text-primary:  #1A2332;
  --text-secondary:#4A5568;
  --text-muted:    #8899AA;
  --border:        rgba(0,0,0,.09);
  --danger:        #D32F2F;
  --warning:       #E65100;
  --info:          #1565C0;
  --success:       #0D9B6E;
  --purple:        #5E35B1;
  --shadow:        0 4px 24px rgba(0,0,0,.1);
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

img { max-width: 100%; display: block; }

input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 3px; }

/* ============================================================
   Composants partagés
   ============================================================ */

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .65rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }

.btn--primary {
  background: var(--accent);
  color: var(--bg-deep);
}
.btn--primary:hover { background: var(--accent-dark); color: var(--bg-deep); }

.btn--secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--secondary:hover { background: var(--bg-card); }

.btn--danger { background: var(--danger); color: #fff; }
.btn--danger:hover { background: #c62828; color: #fff; }

.btn--full { width: 100%; }

.btn--lg { padding: .85rem 1.75rem; font-size: 1rem; border-radius: var(--radius-lg); }

/* Formulaires */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: .4rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.form-control {
  width: 100%;
  padding: .75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-control::placeholder { color: var(--text-muted); }

.form-control.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(229,57,53,.15);
}

.form-error {
  font-size: .8rem;
  color: var(--danger);
  margin-top: .3rem;
}

/* Badges statut */
.badge {
  display: inline-block;
  padding: .25rem .65rem;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.badge--draft    { background: rgba(136,153,170,.2); color: #8899aa; }
.badge--pending  { background: rgba(245,166,35,.2);  color: #F5A623; }
.badge--finance  { background: rgba(74,144,226,.2);  color: #4A90E2; }
.badge--approved { background: rgba(46,229,168,.2);  color: #2EE5A8; }
.badge--rejected { background: rgba(229,57,53,.2);   color: #E53935; }
.badge--paid     { background: rgba(123,97,255,.2);  color: #7B61FF; }

/* Flash messages */
#flash-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  max-width: 360px;
}

.flash {
  padding: .85rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: .9rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  animation: slideIn .25s ease;
}
.flash--success { background: rgba(46,229,168,.15); border: 1px solid var(--accent); color: var(--accent); }
.flash--error   { background: rgba(229,57,53,.15);  border: 1px solid var(--danger); color: #ef9a9a; }
.flash--warning { background: rgba(245,166,35,.15); border: 1px solid var(--warning); color: var(--warning); }
.flash--info    { background: rgba(74,144,226,.15); border: 1px solid var(--info); color: var(--info); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

/* Utilitaires */
.hidden { display: none !important; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }