:root{
  --bg: #EEF0F2;
  --surface: #FFFFFF;
  --ink: #1C2430;
  --ink-soft: #5B6472;
  --line: #DADFE5;
  --amber: #C98A2C;
  --amber-deep: #9C6A1D;
  --green: #2F7A4D;
  --green-bg: #E7F3EB;
  --red: #B4432F;
  --red-bg: #FBECE8;
  --radius: 12px;
  --sidebar-width: 240px;
  --sidebar-width-collapsed: 68px;
}

*{ box-sizing: border-box; }

html.sidebar-collapsed-init .sidebar{ width: var(--sidebar-width-collapsed); }

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  line-height: 1.5;
}

h1,h2,h3{
  font-family: 'Zilla Slab', Georgia, serif;
  font-weight: 600;
  margin: 0;
}

a{ color: var(--ink); }

/* ---------- Structure générale : sidebar + contenu ---------- */

.app-shell{
  display:flex;
  min-height: 100vh;
}

.sidebar{
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--line);
  display:flex;
  flex-direction: column;
  transition: width 0.18s ease;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 20;
}
.sidebar.collapsed{ width: var(--sidebar-width-collapsed); }

.sidebar-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 16px 14px;
  border-bottom: 1px solid var(--line);
  gap: 8px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  text-decoration:none;
  overflow:hidden;
  min-width:0;
}
.brand-logo{ height: 32px; width: 32px; object-fit: contain; border-radius: 6px; flex-shrink:0; }
.brand-fallback{ font-size: 1.4rem; flex-shrink:0; }
.brand-text{
  font-family: 'Zilla Slab', Georgia, serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar.collapsed .brand-text{ display:none; }

.sidebar-toggle{
  background:none; border:none; cursor:pointer;
  font-size: 1.1rem; color: var(--ink-soft); padding: 4px 6px; border-radius: 6px; flex-shrink:0;
}
.sidebar-toggle:hover{ background: var(--bg); }

.sidebar-nav{ flex: 1; padding: 10px 0; }

.nav-section{ margin-bottom: 14px; }
.nav-section-label{
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--amber-deep);
  padding: 6px 16px;
  white-space: nowrap;
  overflow:hidden;
}
.sidebar.collapsed .nav-section-label{ display:none; }

.nav-item{
  display:flex;
  align-items:center;
  gap: 12px;
  padding: 9px 16px;
  text-decoration:none;
  color: var(--ink-soft);
  font-size: 0.9rem;
  white-space: nowrap;
  overflow:hidden;
}
.nav-item:hover{ background: var(--bg); color: var(--ink); }
.nav-item.active{ background: var(--bg); color: var(--ink); font-weight: 600; border-right: 3px solid var(--amber); }
.nav-icon{ flex-shrink:0; font-size: 1.05rem; width: 22px; text-align:center; }
.nav-text{ overflow:hidden; text-overflow:ellipsis; }
.sidebar.collapsed .nav-text{ display:none; }
.sidebar.collapsed .nav-item{ justify-content:center; padding: 10px 0; }
.sidebar.collapsed .nav-icon{ width:auto; }

.sidebar-footer{
  border-top: 1px solid var(--line);
  padding: 12px 0;
}
.who-name{
  padding: 4px 16px 8px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.sidebar.collapsed .who-name{ display:none; }

.sidebar-backdrop{
  display:none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 15;
}
.sidebar-backdrop.visible{ display:block; }

.main-area{
  flex: 1;
  min-width: 0;
}

.mobile-topbar{
  display:none;
  align-items:center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.mobile-topbar button{
  background:none; border:none; font-size:1.3rem; cursor:pointer; color: var(--ink);
}
.mobile-brand{ font-family:'Zilla Slab',serif; font-weight:700; }

.wrap{
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

/* ---------- Cartes, tableaux, formulaires ---------- */

.card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 22px;
  overflow-x: auto;
}
.card h2{ font-size: 1.1rem; margin-bottom: 16px; }

table{ width:100%; border-collapse: collapse; font-size: 0.92rem; }
th, td{ white-space: nowrap; }
th{
  text-align:left; font-weight:600; color: var(--ink-soft);
  font-size: 0.78rem; padding: 0 10px 8px; border-bottom: 1px solid var(--line);
}
td{ padding: 10px; border-bottom: 1px solid var(--line); }
tr:last-child td{ border-bottom:none; }

label{ display:block; font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 4px; }
input[type=text], input[type=password], input[type=date], input[type=time], input[type=number], input[type=file], select, textarea{
  width:100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
  font-family:inherit; font-size: 16px; background: var(--surface); color: var(--ink);
}
input[type=checkbox]{ width: 18px; height: 18px; cursor: pointer; }
input:focus, select:focus, button:focus, a:focus{ outline: 2px solid var(--amber); outline-offset: 2px; }

.field{ margin-bottom: 14px; }
.field-row{ display:flex; gap: 12px; flex-wrap: wrap; }
.field-row .field{ flex:1; min-width: 140px; }

.btn{
  display:inline-block; padding: 9px 16px; border-radius: 8px; border: none;
  background: var(--ink); color:#fff; font-weight:600; font-size: 0.88rem; cursor:pointer;
  text-decoration:none;
}
.btn:hover{ background:#333F4E; }
.btn.ghost{ background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover{ background: var(--bg); }
.btn.danger{ background: var(--red); }
.btn.danger:hover{ background: #8f3423; }

.tag{ display:inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight:600; }
.tag.admin{ background: var(--green-bg); color: var(--green); }
.tag.employee{ background: #EFEFEF; color: var(--ink-soft); }
.tag.inactive{ background: var(--red-bg); color: var(--red); }
.tag.pending{ background: #FCEFD9; color: var(--amber-deep); }
.tag.approved{ background: var(--green-bg); color: var(--green); }
.tag.rejected{ background: var(--red-bg); color: var(--red); }
.tag.a_faire{ background: #FCEFD9; color: var(--amber-deep); }
.tag.en_cours{ background: var(--green-bg); color: var(--green); }
.tag.termine{ background: #EFEFEF; color: var(--ink-soft); }

.alert{ padding: 12px 14px; border-radius: 8px; margin-bottom: 18px; font-size: 0.9rem; }
.alert.error{ background: var(--red-bg); color: var(--red); }
.alert.success{ background: var(--green-bg); color: var(--green); }

.month-nav{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 18px;
}
.month-nav .label{ font-family:'Zilla Slab',serif; font-weight:600; font-size: 1.15rem; text-transform: capitalize; }
.month-nav a{ text-decoration:none; font-size: 0.9rem; color: var(--ink-soft); }
.month-nav a:hover{ color: var(--ink); }

.stats-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.grid-form-side{
  display:grid;
  grid-template-columns: 1fr 320px;
  gap: 22px;
  align-items: start;
}
@media (max-width: 900px){
  .grid-form-side{ grid-template-columns: 1fr; }
}

.stat-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.stat-card .value{
  font-family: 'Zilla Slab', Georgia, serif;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.1;
}
.stat-card .label{ color: var(--ink-soft); font-size: 0.85rem; margin-top: 6px; }
.stat-card a{ text-decoration:none; }
.stat-card.alert-card .value{ color: var(--red); }

.avail-calendar{
  display:grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}
.avail-weekday-label{
  font-weight:600; font-size:0.72rem; text-transform:uppercase;
  color: var(--ink-soft); text-align:center; padding-bottom:4px;
}
.avail-day{
  border-radius: 8px;
  padding: 10px 6px;
  text-align:center;
  font-size: 0.85rem;
  min-height: 54px;
}
.avail-day .day-num{ font-weight:600; }
.avail-day .day-label{ font-size: 0.7rem; margin-top:2px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.avail-day.available{ background: var(--green-bg); color: var(--green); }
.avail-day.busy{ background: var(--red-bg); color: var(--red); }
.avail-day.weekend{ background: #EFEFEF; color: var(--ink-soft); }
.avail-day.holiday{ background: #E4ECFB; color: #3B5FA8; }
.avail-day.empty{ background: transparent; }
a.avail-day{ display:block; text-decoration:none; cursor:pointer; }
a.avail-day:hover{ opacity: 0.85; }

.avail-matrix{ border-collapse: collapse; font-size: 0.72rem; }
.avail-matrix th, .avail-matrix td{ padding: 2px; text-align:center; }
.avail-matrix .emp-name{ text-align:left; white-space:nowrap; padding-right:12px; font-size:0.82rem; }
.avail-matrix td.day-cell{ width:22px; height:22px; border-radius:4px; }
.avail-matrix td.day-cell.available{ background: var(--green-bg); }
.avail-matrix td.day-cell.busy{ background: var(--red-bg); }
.avail-matrix td.day-cell.weekend{ background: #EFEFEF; }
.avail-matrix td.day-cell.holiday{ background: #E4ECFB; }
.avail-matrix td.day-cell.selected{ outline: 2px solid var(--ink); outline-offset: -2px; }

.empty{ color: var(--ink-soft); font-size: 0.9rem; padding: 14px 4px; }

.login-wrap{
  max-width: 360px; margin: 90px auto 0; padding: 0 20px;
}
.login-wrap .card{ padding: 30px; }
.login-wrap h1{ font-size: 1.4rem; margin-bottom: 4px; }
.login-wrap .sub{ color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 22px; }

.actions-row{ display:flex; gap: 8px; flex-wrap: wrap; }
.actions-row form{ display:inline; }

footer.page-footer{
  text-align:center; color: var(--ink-soft); font-size: 0.8rem; margin-top: 30px;
}

.logo-preview{
  max-height: 80px; max-width: 200px; border: 1px solid var(--line); border-radius: 8px; padding: 8px; background:#fff;
}

.avail-badge{
  display:inline-block; font-size: 0.72rem; padding: 2px 9px; border-radius: 999px; margin-left: 8px;
}
.avail-badge.available{ background: var(--green-bg); color: var(--green); }
.avail-badge.unavailable{ background: var(--red-bg); color: var(--red); }

/* ---------- Mobile : sidebar en tiroir ---------- */
@media (max-width: 900px){
  .sidebar{
    position: fixed;
    left: 0; top: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    width: 260px !important;
  }
  .sidebar.mobile-open{ transform: translateX(0); }
  .sidebar.collapsed{ width: 260px; }
  .sidebar.collapsed .nav-text,
  .sidebar.collapsed .nav-section-label,
  .sidebar.collapsed .brand-text,
  .sidebar.collapsed .who-name{ display: initial; }
  .sidebar .sidebar-toggle{ display:none; }

  .mobile-topbar{ display:flex; }

  .wrap{ padding: 20px 16px 40px; }
}

@media (max-width: 480px){
  .field-row{ flex-direction: column; }
  .field-row .field{ min-width: 100%; }

  .login-wrap{ margin-top: 50px; }
}