/* =====================================================================
   OASIS GESTION — DESIGN SYSTEM OFFICIEL (Charte Oasis Terre et Eau)
   Palette : Teal #0B6174 | Terracotta #C85A32 | Blue #066AAB | Green #2A7B62
   ===================================================================== */

:root {
  --primary: #0B6174;
  --primary-hover: #084957;
  --primary-light: rgba(11, 97, 116, 0.08);
  --primary-border: rgba(11, 97, 116, 0.2);
  
  --secondary: #066AAB;
  --secondary-hover: #044F80;
  
  --accent: #C85A32;
  --accent-light: rgba(200, 90, 50, 0.1);
  
  --success: #2A7B62;
  --success-light: rgba(42, 123, 98, 0.1);
  
  --warning: #D9822B;
  --warning-light: rgba(217, 130, 43, 0.1);
  
  --danger: #C0392B;
  --danger-light: rgba(192, 57, 43, 0.1);
  
  --bg-page: #F5F8F8;
  --bg-surface: #FFFFFF;
  --bg-sidebar: #093E4A;
  --bg-sidebar-active: #0B6174;
  
  --text-main: #1D2D35;
  --text-muted: #5A717D;
  --text-light: #8FA2AC;
  --text-inverse: #FFFFFF;
  
  --border-color: #E2E8EA;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(11, 97, 116, 0.08);
  --shadow-lg: 0 12px 28px rgba(11, 97, 116, 0.12);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

/* LAYOUT STRUCTURE */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* SIDEBAR */
.app-sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 100;
  transition: all 0.3s ease;
}

.sidebar-header {
  padding: 22px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  color: #fff;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
  line-height: 1.15;
}

.brand-sub {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-sans);
  font-weight: 400;
  margin-top: 2px;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
}

.nav-group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
  padding: 10px 12px 6px;
  font-weight: 600;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateX(2px);
}

.nav-link.active {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.15);
}

.user-badge-role {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  margin-top: 3px;
}
.role-president { background: #D9822B; color: #fff; }
.role-tresoriere { background: #2A7B62; color: #fff; }
.role-admin { background: #6C5CE7; color: #fff; }

/* MAIN CONTENT */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-topbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow-sm);
}

.page-header-title {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--primary);
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.role-switcher-banner {
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
}

.content-body {
  padding: 28px;
  flex: 1;
}

/* CARDS & GRIDS */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}
.stat-card.solde::before { background: var(--primary); }
.stat-card.recettes::before { background: var(--success); }
.stat-card.depenses::before { background: var(--accent); }
.stat-card.projet::before { background: var(--secondary); }

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.stat-sub {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 6px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
  overflow: hidden;
}

.card-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FCFDFD;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 22px;
}

/* TABLES */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

.table th {
  background-color: #F8FAFA;
  color: var(--text-muted);
  font-weight: 600;
  padding: 12px 14px;
  border-bottom: 2px solid var(--border-color);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.04em;
}

.table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table tr:hover td {
  background-color: #FAFCFC;
}

/* BADGES */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-recette { background: var(--success-light); color: var(--success); }
.badge-depense { background: var(--accent-light); color: var(--accent); }
.badge-locked { background: #EDF2F7; color: #4A5568; }
.badge-reconciled { background: #E6FFFA; color: #234E52; border: 1px solid #B2F5EA; }
.badge-unreconciled { background: #FFFAF0; color: #7B341E; border: 1px solid #FEEBC8; }
.badge-cancelled { background: var(--danger-light); color: var(--danger); text-decoration: line-through; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  text-decoration: none;
}

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

.btn-secondary {
  background-color: #fff;
  border-color: var(--border-color);
  color: var(--text-main);
}
.btn-secondary:hover {
  background-color: #F7FAFA;
}

.btn-accent {
  background-color: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background-color: #A84522;
  color: #fff;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 4px;
}

/* FORMS */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background-color: #fff;
  color: var(--text-main);
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

/* ALERTS & FLASH */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-success { background: #DEF7EC; color: #03543F; border: 1px solid #BCF0DA; }
.alert-danger { background: #FDE8E8; color: #9B1C1C; border: 1px solid #F8B4B4; }
.alert-info { background: #E1EFFE; color: #1E429F; border: 1px solid #B4C6FC; }

/* MODAL */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(3px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.active {
  display: flex;
}
.modal-content {
  background: #fff;
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-body {
  padding: 22px;
}

/* PROGRESS BAR */
.progress-bar-container {
  height: 10px;
  background: #E2E8F0;
  border-radius: 5px;
  overflow: hidden;
  margin: 8px 0;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 5px;
  transition: width 0.5s ease;
}

/* MOBILE TOGGLE */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--primary);
  cursor: pointer;
}

@media (max-width: 900px) {
  .app-sidebar {
    position: fixed;
    left: -260px;
  }
  .app-sidebar.open {
    left: 0;
  }
  .mobile-toggle {
    display: block;
  }
}