/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --bg:           #F4F1EC;
  --warm-white:   #FDFCFA;
  --sand:         #E4DDD4;
  --primary:      #6B7A5E;
  --primary-light:#8A9B7C;
  --primary-pale: #EDF0EA;
  --charcoal:     #252220;
  --muted:        #8A8178;
  --border:       #DAD3C8;
  --sidebar-w:    260px;
  --danger:       #C0392B;
  --danger-pale:  #FDECEA;
  --warning:      #E67E22;
  --warning-pale: #FEF3E7;
  --success:      #27AE60;
  --success-pale: #E8F8EF;
  --blue:         #2980B9;
  --blue-pale:    #EAF4FB;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--charcoal); font-family: 'DM Sans', sans-serif; font-weight: 300; line-height: 1.75; min-height: 100vh; }

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

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w); background: var(--charcoal);
  position: fixed; top: 0; left: 0; bottom: 0;
  overflow-y: auto; z-index: 200; display: flex; flex-direction: column;
  transition: transform 0.3s ease;
}
.sidebar::-webkit-scrollbar { width: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); }
.sidebar-logo { padding: 28px 24px 20px; border-bottom: 1px solid rgba(255,255,255,0.07); flex-shrink: 0; }
.sidebar-logo .brand { font-family: 'Cormorant Garamond', serif; font-size: 20px; font-weight: 600; letter-spacing: 2px; color: var(--warm-white); }
.sidebar-logo .sub { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--primary-light); margin-top: 3px; }
nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.nav-section-label { font-size: 9px; letter-spacing: 2.5px; text-transform: uppercase; color: rgba(255,255,255,0.22); padding: 16px 24px 5px; display: block; }
nav ul { list-style: none; }
nav ul li a { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 13px; color: rgba(255,255,255,0.5); padding: 8px 24px; border-left: 2px solid transparent; transition: all 0.15s; font-weight: 400; }
nav ul li a:hover { color: var(--warm-white); background: rgba(255,255,255,0.04); }
nav ul li a.active { color: var(--primary-light); border-left-color: var(--primary); background: rgba(107,122,94,0.1); }
.nav-icon { font-size: 13px; color: rgba(255,255,255,0.25); min-width: 16px; }
nav ul li a.active .nav-icon { color: var(--primary-light); }
.sidebar-footer { padding: 16px 24px; border-top: 1px solid rgba(255,255,255,0.07); flex-shrink: 0; }
.user-info { display: flex; flex-direction: column; gap: 2px; }
.user-name { font-size: 13px; color: var(--warm-white); font-weight: 400; }
.user-role { font-size: 10px; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,0.3); }

/* TOPBAR MOBILE */
.topbar { display: none; position: fixed; top: 0; left: 0; right: 0; height: 52px; background: var(--charcoal); z-index: 300; align-items: center; justify-content: space-between; padding: 0 20px; }
.t-brand { font-family: 'Cormorant Garamond', serif; font-size: 18px; letter-spacing: 2px; color: var(--warm-white); font-weight: 600; }
.hamburger { background: none; border: none; cursor: pointer; display: flex; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 20px; height: 1.5px; background: var(--warm-white); transition: all 0.3s; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }
.overlay { display: none; position: fixed; inset: 0; background: rgba(37,34,32,0.5); z-index: 150; backdrop-filter: blur(2px); }
.overlay.show { display: block; }

/* MAIN */
.main-wrap { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header { background: var(--charcoal); padding: 48px 52px 40px; position: relative; overflow: hidden; }
.page-header::after { content: ''; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(107,122,94,0.12) 0%, transparent 70%); pointer-events: none; }
.eyebrow { font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--primary-light); margin-bottom: 12px; }
.page-header h1 { font-family: 'Cormorant Garamond', serif; font-size: 36px; font-weight: 600; color: var(--warm-white); line-height: 1.15; }
.page-header .sub { margin-top: 8px; font-size: 13px; color: rgba(255,255,255,0.35); }
.page-header-actions { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ============================================================
   CONTENT
   ============================================================ */
.content { padding: 40px 52px 80px; flex: 1; }
.section { margin-bottom: 52px; }
.section-title { font-family: 'Cormorant Garamond', serif; font-size: 22px; font-weight: 600; color: var(--charcoal); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 16px; }

/* ============================================================
   CARDS & BLOCKS
   ============================================================ */
.card { background: var(--warm-white); border: 1px solid var(--border); border-radius: 4px; padding: 28px; margin-bottom: 16px; }
.card + .card { margin-top: 0; }
.block-label { font-size: 9px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--primary); margin-bottom: 8px; font-weight: 500; }

/* ============================================================
   TABLES
   ============================================================ */
.data-table { width: 100%; border-collapse: collapse; background: var(--warm-white); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; font-size: 13px; }
.data-table thead tr { background: var(--charcoal); }
.data-table thead th { padding: 11px 16px; text-align: left; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--sand); font-weight: 400; white-space: nowrap; }
.data-table tbody tr { border-bottom: 1px solid var(--border); transition: background 0.1s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: var(--primary-pale); }
.data-table td { padding: 12px 16px; vertical-align: middle; }

/* ============================================================
   BADGES DE STATUT
   ============================================================ */
.badge { display: inline-block; font-size: 10px; letter-spacing: 0.8px; text-transform: uppercase; padding: 3px 10px; border-radius: 2px; font-weight: 500; }
.badge-gray { background: #EDEDEC; color: var(--muted); }
.badge-blue { background: var(--blue-pale); color: var(--blue); }
.badge-green { background: var(--success-pale); color: var(--success); }
.badge-yellow { background: var(--warning-pale); color: var(--warning); }
.badge-teal { background: #E6F4F4; color: #1A7A7A; }
.badge-orange { background: #FEF3E7; color: #D35400; }
.badge-red { background: var(--danger-pale); color: var(--danger); }

/* ============================================================
   BOUTONS
   ============================================================ */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 3px; font-size: 13px; font-weight: 400; cursor: pointer; text-decoration: none; border: 1px solid transparent; transition: all 0.15s; font-family: inherit; white-space: nowrap; }
.btn-primary { background: var(--primary); color: var(--warm-white); border-color: var(--primary); }
.btn-primary:hover { background: #5a6950; border-color: #5a6950; }
.btn-secondary { background: transparent; color: var(--charcoal); border-color: var(--border); }
.btn-secondary:hover { background: var(--sand); }
.btn-danger { background: var(--danger); color: white; border-color: var(--danger); }
.btn-danger:hover { background: #a93226; }
.btn-ghost { background: transparent; color: var(--muted); border-color: transparent; }
.btn-ghost:hover { background: var(--sand); color: var(--charcoal); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }
.btn-logout { background: transparent; border: none; color: rgba(255,255,255,0.3); font-size: 12px; cursor: pointer; font-family: inherit; padding: 0; }
.btn-logout:hover { color: rgba(255,255,255,0.7); }

/* ============================================================
   FORMULAIRES
   ============================================================ */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 11px; letter-spacing: 0.5px; color: var(--muted); margin-bottom: 6px; font-weight: 400; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 3px;
  background: var(--warm-white); color: var(--charcoal); font-size: 14px;
  font-family: inherit; font-weight: 300; transition: border-color 0.15s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ============================================================
   ALERTES
   ============================================================ */
.alert { padding: 12px 16px; border-radius: 3px; font-size: 13px; margin-bottom: 18px; }
.alert-error { background: var(--danger-pale); color: var(--danger); border: 1px solid rgba(192,57,43,0.2); }
.alert-success { background: var(--success-pale); color: var(--success); border: 1px solid rgba(39,174,96,0.2); }
.alert-info { background: var(--blue-pale); color: var(--blue); border: 1px solid rgba(41,128,185,0.2); }

/* ============================================================
   PAGE AUTH
   ============================================================ */
.page-auth { background: var(--charcoal); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-wrap { width: 100%; max-width: 420px; padding: 24px; }
.auth-card { background: var(--warm-white); border: 1px solid var(--border); border-radius: 4px; padding: 40px; }
.auth-logo { margin-bottom: 32px; }
.auth-logo .brand { font-family: 'Cormorant Garamond', serif; font-size: 24px; letter-spacing: 2px; color: var(--charcoal); font-weight: 600; }
.auth-logo .sub { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--primary); margin-top: 3px; }
.auth-form .form-group { margin-bottom: 16px; }
.auth-hint { font-size: 12px; color: var(--muted); margin-top: 20px; line-height: 1.7; text-align: center; }
.auth-hint a { color: var(--primary); text-decoration: none; }

/* ============================================================
   GRIDS & STATS
   ============================================================ */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card { background: var(--warm-white); border: 1px solid var(--border); border-radius: 4px; padding: 20px 24px; }
.stat-num { font-family: 'Cormorant Garamond', serif; font-size: 36px; font-weight: 600; color: var(--charcoal); line-height: 1; }
.stat-label { font-size: 11px; letter-spacing: 0.5px; color: var(--muted); margin-top: 4px; }

/* Projet blocs */
.bloc { background: var(--warm-white); border: 1px solid var(--border); border-radius: 4px; margin-bottom: 24px; }
.bloc-header { padding: 16px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.bloc-title { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--primary); font-weight: 500; }
.bloc-body { padding: 24px; }

/* Credentials */
.cred-item { display: flex; align-items: flex-start; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.cred-item:last-child { border-bottom: none; }
.cred-label { font-size: 12px; font-weight: 500; color: var(--charcoal); min-width: 120px; }
.cred-val { font-size: 12px; color: var(--muted); font-family: monospace; }

/* Milestones */
.milestone-item { display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.milestone-item:last-child { border-bottom: none; }
.milestone-pos { font-family: 'Cormorant Garamond', serif; font-size: 22px; color: rgba(107,122,94,0.3); min-width: 28px; line-height: 1; font-weight: 600; }
.milestone-title { font-size: 14px; font-weight: 400; color: var(--charcoal); }
.milestone-date { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 4px 0 24px rgba(37,34,32,0.2); }
  .topbar { display: flex; }
  .main-wrap { margin-left: 0; padding-top: 52px; }
  .page-header { padding: 32px 20px 28px; }
  .content { padding: 28px 20px 60px; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .page-header h1 { font-size: 26px; }
  .card { padding: 20px; }
  .auth-card { padding: 28px 20px; }
}