/* ============ VARIABLES ============ */
:root {
  --bg: #f5f7fb;
  --bg-gradient: linear-gradient(135deg, #f5f7fb 0%, #eef1f9 100%);
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #f1f5f9;
  --border: #e5e9f0;
  --border-light: #eef1f6;
  --text: #0f1729;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #eef2ff;
  --primary-lighter: #f5f3ff;
  --success: #10b981;
  --success-light: #d1fae5;
  --success-dark: #059669;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --info: #3b82f6;
  --info-light: #dbeafe;
  --purple: #8b5cf6;
  --pink: #ec4899;
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow: 0 4px 6px -1px rgba(16, 24, 40, 0.08), 0 2px 4px -2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(16, 24, 40, 0.08), 0 4px 6px -4px rgba(16, 24, 40, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(16, 24, 40, 0.1), 0 8px 10px -6px rgba(16, 24, 40, 0.05);
  --shadow-xl: 0 25px 50px -12px rgba(16, 24, 40, 0.15);
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
  --sidebar-w: 260px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #0a0e1a;
  --bg-gradient: linear-gradient(135deg, #0a0e1a 0%, #0f1424 100%);
  --surface: #131a2b;
  --surface-2: #1a2338;
  --surface-3: #232e48;
  --border: #29354f;
  --border-light: #1f2940;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --primary: #818cf8;
  --primary-dark: #6366f1;
  --primary-light: #312e81;
  --primary-lighter: #1e1b4b;
  --success-light: #064e3b;
  --warning-light: #78350f;
  --danger-light: #7f1d1d;
  --info-light: #1e3a8a;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
  font-size: 15px;
  line-height: 1.5;
}

/* ============ LOGIN ============ */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  z-index: 0;
}

.login-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.3), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.2), transparent 45%);
}

.login-card {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
  animation: loginIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes loginIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo .logo-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 18px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.login-logo .logo-icon svg { width: 32px; height: 32px; }
.login-logo h1 { font-size: 1.8em; font-weight: 900; letter-spacing: -0.03em; margin-bottom: 6px; }
.login-logo p { color: var(--text-muted); font-size: 0.9em; }

.login-card h2 { font-size: 1.3em; font-weight: 800; margin-bottom: 6px; }
.login-sub { color: var(--text-muted); font-size: 0.88em; margin-bottom: 22px; }

.login-btn {
  width: 100%;
  margin-top: 8px;
  padding: 14px;
  font-size: 1em;
}

.login-error {
  background: var(--danger-light);
  color: #b91c1c;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85em;
  font-weight: 600;
  margin-bottom: 12px;
  border-left: 3px solid var(--danger);
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  font-size: 0.75em;
  color: var(--text-muted);
}

/* ============ APP ============ */
#app {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s;
}

.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(10, 14, 26, 0.6);
  backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  transition: opacity 0.3s;
}
.sidebar-overlay.active { display: block; opacity: 1; }

.logo {
  display: flex; align-items: center; gap: 12px;
  padding: 0 8px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
  flex-shrink: 0;
  color: white;
}
.logo-icon svg { width: 24px; height: 24px; }

.logo-text { display: flex; flex-direction: column; }
.logo-title { font-size: 1.15em; font-weight: 800; letter-spacing: -0.02em; }
.logo-sub { font-size: 0.72em; color: var(--text-muted); font-weight: 500; }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; overflow-y: auto; }

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  background: transparent; border: none;
  color: var(--text-muted);
  font-size: 0.9em; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  text-align: left; font-family: inherit; width: 100%;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-lighter));
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.15);
}
.nav-icon { width: 20px; height: 20px; flex-shrink: 0; }
.nav-icon svg { width: 20px; height: 20px; }

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.82em;
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 0.88em; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-role { font-size: 0.72em; color: var(--text-muted); font-weight: 600; }

.theme-toggle {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.88em; font-weight: 600;
  cursor: pointer; width: 100%;
  font-family: inherit; transition: all var(--transition);
}
.theme-toggle:hover { background: var(--border); }

.logout-btn { color: var(--danger); }
.logout-btn:hover { background: var(--danger-light) !important; border-color: var(--danger); }

.main {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 24px 32px 48px;
  min-width: 0;
  max-width: 1400px;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; gap: 12px; flex-wrap: wrap;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 10px; }

.mobile-menu {
  display: none;
  width: 42px; height: 42px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 11px;
  font-size: 1.15em; cursor: pointer;
  color: var(--text);
  align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
}

.month-nav {
  display: flex; align-items: center; gap: 4px;
  background: var(--surface);
  padding: 5px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.month-btn {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: transparent; border: none;
  cursor: pointer; color: var(--text-muted);
  font-size: 0.9em; transition: all var(--transition);
  flex-shrink: 0;
}
.month-btn:hover { background: var(--primary-light); color: var(--primary); }

.month-display {
  display: flex; flex-direction: column; align-items: center;
  min-width: 130px; padding: 0 8px;
}
.month-label { font-size: 0.92em; font-weight: 700; text-transform: capitalize; line-height: 1.2; }
.month-year { font-size: 0.72em; color: var(--text-muted); font-weight: 500; }

.icon-btn {
  width: 42px; height: 42px;
  border-radius: 11px;
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm); flex-shrink: 0;
}
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--primary); border-color: var(--primary); }

.page { display: none; animation: fadeIn 0.35s ease; }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 1.75em; font-weight: 800; letter-spacing: -0.025em; margin-bottom: 4px; }
.page-header p { color: var(--text-muted); font-size: 0.92em; }

.hero {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: 0 20px 40px -12px rgba(99, 102, 241, 0.35);
}
.hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%); }
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.25), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.18), transparent 45%);
}
.hero-content { position: relative; padding: 32px; color: white; }
.hero-label { font-size: 0.9em; opacity: 0.9; font-weight: 500; margin-bottom: 6px; }
.hero-value { font-size: 3.2em; font-weight: 900; letter-spacing: -0.035em; margin-bottom: 24px; text-shadow: 0 2px 12px rgba(0,0,0,0.2); line-height: 1.05; word-break: break-word; }
.hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.hero-stat {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.18);
  padding: 12px 16px;
  border-radius: 12px;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.15);
}
.hero-stat-icon { font-size: 1.4em; flex-shrink: 0; }
.hero-stat-label { font-size: 0.72em; opacity: 0.9; font-weight: 500; }
.hero-stat-value { font-size: 1.05em; font-weight: 700; margin-top: 2px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; gap: 14px; align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  min-width: 0;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-light); }
.stat-icon { width: 48px; height: 48px; border-radius: 13px; display: flex; align-items: center; justify-content: center; font-size: 1.4em; flex-shrink: 0; }
.stat-icon.purple { background: var(--primary-light); }
.stat-icon.green { background: var(--success-light); }
.stat-icon.orange { background: var(--warning-light); }
.stat-icon.red { background: var(--danger-light); }
.stat-info { flex: 1; min-width: 0; }
.stat-label { font-size: 0.72em; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px; }
.stat-value { font-size: 1.4em; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 2px; word-break: break-word; }
.stat-sub { font-size: 0.78em; color: var(--text-muted); font-weight: 500; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; gap: 12px; flex-wrap: wrap;
}
.card-header h2 { font-size: 1.05em; font-weight: 700; }
.badge {
  background: var(--primary-light); color: var(--primary);
  padding: 4px 12px; border-radius: 20px;
  font-size: 0.8em; font-weight: 700;
}

.progress-wrap { margin-top: 8px; }
.progress-bar { height: 14px; background: var(--surface-3); border-radius: 7px; overflow: hidden; position: relative; }
.progress-fill { height: 100%; background: linear-gradient(90deg, #6366f1, #8b5cf6); border-radius: 7px; transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1); position: relative; }
.progress-fill::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shine 2.2s infinite;
}
@keyframes shine { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.progress-labels { display: flex; justify-content: space-between; margin-top: 10px; font-size: 0.82em; color: var(--text-muted); font-weight: 600; gap: 8px; flex-wrap: wrap; }

.membres-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.membre-card {
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 18px;
  border-left: 4px solid var(--primary);
  transition: all var(--transition);
}
.membre-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.membre-card.ok { border-left-color: var(--success); }
.membre-card.warn { border-left-color: var(--warning); }
.membre-card.danger { border-left-color: var(--danger); }
.membre-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 8px; flex-wrap: wrap; }
.membre-nom { font-weight: 700; font-size: 0.98em; display: flex; align-items: center; gap: 8px; min-width: 0; }
.membre-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.82em; flex-shrink: 0;
}
.membre-avatar.admin { background: linear-gradient(135deg, #f59e0b, #ec4899); }
.statut { padding: 4px 10px; border-radius: 20px; font-size: 0.72em; font-weight: 700; white-space: nowrap; }
.statut.ok { background: var(--success-light); color: var(--success-dark); }
.statut.warn { background: var(--warning-light); color: #b45309; }
.statut.danger { background: var(--danger-light); color: #b91c1c; }
.membre-ligne { display: flex; justify-content: space-between; font-size: 0.83em; margin: 6px 0; color: var(--text-muted); gap: 8px; }
.membre-ligne strong { color: var(--text); font-weight: 700; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 12px; text-align: left; border-bottom: 1px solid var(--border-light); }
th { background: var(--surface-2); color: var(--text-muted); font-weight: 700; font-size: 0.75em; text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
tr:hover { background: var(--surface-2); }
td.positive { color: var(--success-dark); font-weight: 700; }
td.negative { color: var(--danger); font-weight: 700; }
td.center { text-align: center; }

.btn {
  padding: 10px 18px; border-radius: 10px;
  font-weight: 600; font-size: 0.88em;
  cursor: pointer; border: none;
  transition: all var(--transition);
  font-family: inherit;
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; white-space: nowrap;
}
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--purple)); color: white; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(99,102,241,0.4); }
.btn.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: var(--border); }
.btn.danger { background: var(--danger); color: white; }
.btn.danger:hover { background: #dc2626; }
.btn.success { background: var(--success); color: white; }
.btn.success:hover { background: var(--success-dark); }
.btn.small { padding: 6px 12px; font-size: 0.78em; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
label { font-size: 0.82em; font-weight: 600; color: var(--text-muted); }
input, select {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 0.92em;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  transition: all var(--transition);
  width: 100%;
  -webkit-appearance: none; appearance: none;
}
input:hover, select:hover { border-color: var(--text-light); }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15); }
.hint { font-size: 0.72em; color: var(--text-muted); font-style: italic; margin-top: 2px; }

.achat-form { background: var(--surface-2); border-radius: var(--radius); padding: 18px; border: 1.5px dashed var(--border); }
.achat-form-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.achat-form-row .form-group { margin-bottom: 0; }

.achat-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  border-left: 4px solid var(--primary);
  transition: all var(--transition);
}
.achat-item:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }
.achat-item.achete { opacity: 0.65; border-left-color: var(--success); background: linear-gradient(90deg, var(--success-light) 0%, var(--surface-2) 100%); }
.achat-item.achete .achat-item-nom { text-decoration: line-through; }
.achat-item-icon { width: 42px; height: 42px; border-radius: 11px; display: flex; align-items: center; justify-content: center; font-size: 1.3em; flex-shrink: 0; }
.achat-item-info { flex: 1; min-width: 0; }
.achat-item-nom { font-weight: 700; font-size: 0.95em; margin-bottom: 3px; word-break: break-word; }
.achat-item-detail { font-size: 0.78em; color: var(--text-muted); font-weight: 500; display: flex; gap: 6px; flex-wrap: wrap; }
.achat-tag { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 0.85em; font-weight: 600; }
.achat-tag.cat { background: var(--primary-light); color: var(--primary); }
.achat-tag.mag { background: var(--info-light); color: var(--info); }
.achat-item-prix { font-weight: 800; font-size: 1.05em; color: var(--primary); white-space: nowrap; }
.achat-item-actions { display: flex; gap: 4px; flex-shrink: 0; }
.achat-item-actions button {
  width: 34px; height: 34px;
  border-radius: 9px; border: none; cursor: pointer;
  font-size: 0.9em; transition: all var(--transition);
  background: var(--surface); color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
}
.achat-item-actions button:hover { transform: scale(1.1); }
.achat-item-actions button.check:hover { background: var(--success-light); color: var(--success); }
.achat-item-actions button.edit:hover { background: var(--info-light); color: var(--info); }
.achat-item-actions button.del:hover { background: var(--danger-light); color: var(--danger); }

.total-band {
  padding: 22px 26px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  border-radius: var(--radius);
  color: white;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  box-shadow: 0 10px 24px -6px rgba(99, 102, 241, 0.4);
}
.total-band-left { display: flex; flex-direction: column; gap: 2px; }
.total-band-label { font-size: 0.95em; font-weight: 600; opacity: 0.95; }
.total-band-sub { font-size: 0.78em; opacity: 0.85; }
.total-band-value { font-size: 1.8em; font-weight: 900; letter-spacing: -0.025em; word-break: break-word; }

.calc-preview {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-lighter));
  border: 1.5px solid var(--primary-light);
  border-radius: var(--radius);
  padding: 20px;
  margin: 12px 0 18px;
  text-align: center;
}
[data-theme="dark"] .calc-preview { background: linear-gradient(135deg, #312e81, #4c1d95); border-color: var(--primary-dark); }
.calc-preview-label { font-size: 0.85em; color: var(--text-muted); font-weight: 600; margin-bottom: 6px; }
[data-theme="dark"] .calc-preview-label { color: rgba(255,255,255,0.7); }
.calc-preview-value { font-size: 2em; font-weight: 900; color: var(--primary); letter-spacing: -0.025em; word-break: break-word; }
[data-theme="dark"] .calc-preview-value { color: white; }
.calc-preview-formule { font-size: 0.82em; color: var(--text-muted); margin-top: 4px; }
[data-theme="dark"] .calc-preview-formule { color: rgba(255,255,255,0.6); }

.achat-preview-item { display: flex; align-items: center; justify-content: space-between; padding: 11px 14px; background: var(--surface-2); border-radius: 9px; margin-bottom: 6px; gap: 12px; }
.achat-preview-nom { font-weight: 600; font-size: 0.88em; }
.achat-preview-prix { font-weight: 700; color: var(--primary); font-size: 0.88em; white-space: nowrap; }

.courses-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.course-stat { background: var(--surface-2); padding: 14px; border-radius: 10px; text-align: center; }
.course-stat-value { font-size: 1.4em; font-weight: 800; color: var(--primary); }
.course-stat-label { font-size: 0.78em; color: var(--text-muted); font-weight: 600; margin-top: 4px; }

.course-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  background: var(--surface-2);
  border-radius: 10px;
  margin-bottom: 8px;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.course-item.clickable { cursor: pointer; }
.course-item.clickable:hover { background: var(--surface-3); border-color: var(--border); }
.course-item.checked { background: linear-gradient(90deg, var(--success-light), var(--surface-2)); opacity: 0.75; }
.course-item.checked .course-item-nom { text-decoration: line-through; color: var(--text-muted); }
.course-check {
  width: 28px; height: 28px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
}
.course-item.checked .course-check { background: var(--success); border-color: var(--success); color: white; }
.course-item-info { flex: 1; min-width: 0; }
.course-item-nom { font-weight: 700; font-size: 0.95em; margin-bottom: 3px; }
.course-item-detail { font-size: 0.78em; color: var(--text-muted); }
.course-item-prix { font-weight: 800; color: var(--primary); white-space: nowrap; }

.comp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.comp-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); }
.comp-label { font-size: 0.78em; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 6px; }
.comp-value { font-size: 1.6em; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 4px; }
.comp-sub { font-size: 0.8em; color: var(--text-muted); }
.comp-diff { display: inline-block; padding: 4px 10px; border-radius: 20px; font-size: 0.75em; font-weight: 700; margin-top: 6px; }
.comp-diff.pos { background: var(--success-light); color: var(--success-dark); }
.comp-diff.neg { background: var(--danger-light); color: #b91c1c; }

.cat-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 0.85em; font-weight: 600;
  margin: 4px 4px 4px 0;
}
.cat-pill .del { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 0; font-size: 1em; margin-left: 4px; }
.cat-pill .del:hover { color: var(--danger); }

.membre-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: var(--surface-2);
  border-radius: 10px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
}
.membre-item-info { flex: 1; min-width: 0; }
.membre-item-nom { font-weight: 700; font-size: 0.92em; }
.membre-item-role { font-size: 0.75em; color: var(--text-muted); font-weight: 600; }
.membre-item-actions { display: flex; gap: 4px; }

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(10, 14, 26, 0.65);
  backdrop-filter: blur(6px);
  display: none; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
  animation: fadeIn 0.2s;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  width: 100%; max-width: 460px;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden; max-height: 90vh;
  display: flex; flex-direction: column;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.modal-header h3 { font-size: 1.1em; font-weight: 700; }
.modal-close {
  width: 32px; height: 32px;
  background: transparent; border: none;
  font-size: 1.1em; cursor: pointer;
  color: var(--text-muted); border-radius: 8px;
  transition: all var(--transition); flex-shrink: 0;
}
.modal-close:hover { background: var(--surface-2); color: var(--text); }
.modal-body { padding: 24px; display: flex; flex-direction: column; overflow-y: auto; }
.modal-footer {
  padding: 16px 24px; border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end; flex-shrink: 0;
}

.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 2000; pointer-events: none;
  max-width: calc(100vw - 48px);
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  padding: 14px 20px; border-radius: 12px;
  box-shadow: var(--shadow-lg);
  font-weight: 600; font-size: 0.88em;
  color: var(--text);
  min-width: 240px; max-width: 340px;
  animation: toastIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
  display: flex; align-items: center; gap: 10px;
}
.toast.success { border-left-color: var(--success); }
.toast.warn { border-left-color: var(--warning); }
.toast.danger { border-left-color: var(--danger); }
.toast.fade-out { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%) scale(0.9); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes toastOut { to { opacity: 0; transform: translateX(100%); } }

.empty-state {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  margin-bottom: 20px;
}
.empty-state-icon { font-size: 3.2em; margin-bottom: 14px; opacity: 0.9; }
.empty-state-title { font-size: 1.15em; font-weight: 700; margin-bottom: 8px; }
.empty-state-desc { color: var(--text-muted); font-size: 0.92em; margin-bottom: 20px; line-height: 1.6; max-width: 400px; margin-left: auto; margin-right: auto; }

.muted { color: var(--text-muted); font-size: 0.88em; margin-bottom: 16px; }

.admin-only { display: block; }
.admin-only.hidden-by-role { display: none !important; }
.nav-icon { display: inline-block; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
  .main { padding: 20px 24px 40px; }
  .hero-value { font-size: 2.8em; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-xl); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.active { display: block; }
  .main { margin-left: 0; padding: 16px 20px 32px; }
  .mobile-menu { display: flex; }
  .hero-content { padding: 24px; }
  .hero-value { font-size: 2.4em; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .membres-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  body { font-size: 14px; }
  .main { padding: 12px 14px 24px; }
  .login-card { padding: 32px 24px; }
  .login-logo .logo-icon { width: 56px; height: 56px; }
  .login-logo h1 { font-size: 1.6em; }

  .topbar { margin-bottom: 18px; gap: 10px; }
  .topbar-left { gap: 6px; flex: 1; min-width: 0; }
  .icon-btn { width: 38px; height: 38px; }
  .icon-btn svg { width: 18px; height: 18px; }
  .month-btn { width: 30px; height: 30px; }
  .month-display { min-width: 90px; padding: 0 4px; }
  .month-label { font-size: 0.85em; }
  .month-year { font-size: 0.68em; }
  .mobile-menu { width: 38px; height: 38px; }

  .page-header { margin-bottom: 18px; }
  .page-header h1 { font-size: 1.4em; }
  .page-header p { font-size: 0.85em; }

  .hero { margin-bottom: 18px; border-radius: var(--radius); }
  .hero-content { padding: 20px 18px; }
  .hero-label { font-size: 0.82em; }
  .hero-value { font-size: 2.1em; margin-bottom: 16px; }
  .hero-stats { grid-template-columns: 1fr; gap: 8px; }
  .hero-stat { padding: 10px 12px; }
  .hero-stat-icon { font-size: 1.2em; }
  .hero-stat-label { font-size: 0.7em; }
  .hero-stat-value { font-size: 0.92em; }

  .stats-grid { grid-template-columns: 1fr; gap: 10px; margin-bottom: 18px; }
  .stat-card { padding: 14px; }
  .stat-icon { width: 40px; height: 40px; }
  .stat-value { font-size: 1.15em; }

  .card { padding: 16px 14px; border-radius: 12px; margin-bottom: 14px; }
  .card-header { margin-bottom: 14px; }
  .card-header h2 { font-size: 1em; }

  .membres-grid { grid-template-columns: 1fr; }
  .membre-card { padding: 14px; }

  .grid { grid-template-columns: 1fr; gap: 12px; }
  .btn { padding: 10px 16px; font-size: 0.85em; }
  .btn.small { padding: 5px 10px; font-size: 0.75em; }

  .achat-form { padding: 14px; }
  .achat-form-row { flex-direction: column; align-items: stretch; gap: 10px; }
  .achat-form-row .form-group { width: 100% !important; flex: unset !important; min-width: 0 !important; }
  .achat-form-row .btn { width: 100%; }

  .achat-item { padding: 12px; gap: 10px; flex-wrap: wrap; }
  .achat-item-info { flex: 1 1 100%; order: 2; }
  .achat-item-prix { order: 3; }
  .achat-item-actions { order: 4; }
  .achat-item-icon { order: 1; width: 36px; height: 36px; }

  .total-band { flex-direction: column; align-items: flex-start; padding: 18px 20px; }
  .total-band-value { font-size: 1.5em; }

  .calc-preview { padding: 16px; }
  .calc-preview-value { font-size: 1.6em; }

  .table-wrap { overflow-x: visible; }
  table { min-width: 0; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  tr { background: var(--surface-2); border-radius: 12px; padding: 14px; margin-bottom: 10px; border: 1px solid var(--border); }
  tr:hover { background: var(--surface-2); }
  td { padding: 6px 0; border: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; text-align: right; }
  td::before { content: attr(data-label); font-weight: 600; color: var(--text-muted); font-size: 0.78em; text-transform: uppercase; text-align: left; flex-shrink: 0; }
  td:last-child { justify-content: flex-end; padding-top: 10px; border-top: 1px dashed var(--border); margin-top: 6px; }
  td:last-child::before { display: none; }

  .modal-overlay { padding: 0; align-items: flex-end; }
  .modal { max-width: 100%; border-radius: 24px 24px 0 0; max-height: 90vh; animation: modalUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); padding-bottom: env(safe-area-inset-bottom); }
  @keyframes modalUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
  .modal-header { padding: 18px 20px; }
  .modal-body { padding: 20px; }
  .modal-footer { padding: 14px 20px; flex-direction: column-reverse; gap: 8px; }
  .modal-footer .btn { width: 100%; }

  .toast-container { bottom: 16px; left: 16px; right: 16px; max-width: calc(100vw - 32px); align-items: stretch; }
  .toast { min-width: unset; width: 100%; max-width: 100%; }

  .comp-grid { grid-template-columns: 1fr; gap: 10px; }
  .comp-value { font-size: 1.4em; }

  .empty-state { padding: 32px 20px; }
  .empty-state-icon { font-size: 2.5em; }
}

@media (max-width: 380px) {
  .hero-value { font-size: 1.75em; }
  .stat-value { font-size: 1em; }
  .btn { padding: 9px 14px; font-size: 0.8em; }
  .month-display { min-width: 70px; }
  .month-label { font-size: 0.75em; }
}

@media print {
  .sidebar, .sidebar-overlay, .topbar, .btn, .toast-container,
  .nav, .theme-toggle, .mobile-menu, .card-header .btn { display: none !important; }
  .main { margin-left: 0; padding: 0; }
  body { background: white !important; color: black !important; font-size: 12pt; }
  .card { box-shadow: none !important; border: 1px solid #ccc !important; break-inside: avoid; margin-bottom: 16px; }
  .page { display: block !important; }
  .page:not(#page-courses) { display: none !important; }
  .course-item { border: 1px solid #ccc; padding: 8px; }
  .course-item.checked { opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}