/* =============================================
   INGENIERIE PRO — CSS Responsive complet
   Mobile-first : Android, iPhone, tablette, desktop
   ============================================= */

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

:root {
    --blue-50:   #E6F1FB; --blue-100: #B5D4F4;
    --blue-600:  #185FA5; --blue-800: #0C447C; --blue-900: #042C53;
    --green-50:  #EAF3DE; --green-600: #3B6D11; --green-800: #27500A;
    --amber-50:  #FAEEDA; --amber-600: #854F0B; --amber-800: #633806;
    --red-50:    #FCEBEB; --red-600:  #A32D2D; --red-800:  #791F1F;
    --gray-50:   #F1EFE8; --gray-100: #D3D1C7; --gray-400: #888780;
    --gray-600:  #5F5E5A; --gray-800: #444441;
    --bg:        #F4F3EF;
    --surface:   #FFFFFF;
    --border:    rgba(0,0,0,0.10);
    --border-md: rgba(0,0,0,0.18);
    --text:      #1a1a18;
    --text-muted:#5F5E5A;
    --text-hint: #888780;
    --radius-sm: 6px; --radius-md: 8px; --radius-lg: 12px;
    --sidebar-w: 240px;
    --topbar-h:  56px;
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
}

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

/* ---- SIDEBAR (desktop) ---- */
.sidebar {
    width: var(--sidebar-w);
    min-width: var(--sidebar-w);
    background: var(--surface);
    border-right: 0.5px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 200;
    transition: transform 0.28s cubic-bezier(.4,0,.2,1);
}

/* ---- TOPBAR mobile (cachée sur desktop) ---- */
.topbar {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--topbar-h);
    background: var(--surface);
    border-bottom: 0.5px solid var(--border);
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    z-index: 300;
}
.topbar-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 15px; font-weight: 600; color: var(--text);
    text-decoration: none;
}
.brand-logo { display: block; object-fit: contain; background: #fff; }
.brand-logo-topbar { width: 112px; height: 48px; }
.topbar-logo .logo-icon { width: 28px; height: 28px; font-size: 14px; }
.burger {
    width: 36px; height: 36px;
    background: none; border: none; cursor: pointer;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 5px;
}
.burger span {
    display: block; width: 20px; height: 2px;
    background: var(--text); border-radius: 2px;
    transition: all 0.2s;
}

/* ---- OVERLAY (mobile, quand sidebar ouverte) ---- */
.sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 150;
    backdrop-filter: blur(2px);
}
.sidebar-overlay.open { display: block; }

/* ---- LOGO sidebar ---- */
.sidebar-logo {
    display: flex; align-items: center; gap: 10px;
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 0.5px solid var(--border);
    flex-shrink: 0;
}
.brand-logo-sidebar { width: 190px; height: 82px; margin: 0 auto; }
.logo-icon {
    width: 32px; height: 32px;
    background: var(--blue-600); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.logo-icon i { color: #fff; font-size: 18px; }
.logo-title { font-size: 14px; font-weight: 600; color: var(--text); }
.logo-sub   { font-size: 11px; color: var(--text-muted); }

/* ---- NAV ---- */
.sidebar-nav { padding: .75rem 0; flex: 1; overflow-y: auto; }
.sidebar-footer { padding: .75rem 0 1rem; border-top: 0.5px solid var(--border); flex-shrink: 0; }

.nav-section-label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .08em; color: var(--text-hint);
    padding: 10px 1.25rem 4px;
}
.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 1.25rem; font-size: 13px;
    color: var(--text-muted); text-decoration: none;
    transition: background .15s, color .15s;
}
.nav-item i { font-size: 17px; flex-shrink: 0; }
.nav-item:hover { background: var(--gray-50); color: var(--text); }
.nav-item.active {
    background: var(--blue-50); color: var(--blue-600);
    font-weight: 500; border-left: 2px solid var(--blue-600);
}
.nav-add { color: var(--blue-600); font-weight: 500; }
.nav-add:hover { background: var(--blue-50); }

/* ---- USER BLOCK ---- */
.user-block {
    display: flex; align-items: center; gap: 9px;
    padding: 10px 1.25rem;
    border-top: 0.5px solid var(--border); margin-top: 4px;
}
.user-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--blue-600); color: #fff;
    font-size: 11px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 12px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 10px; color: var(--text-muted); }
.user-logout {
    color: var(--text-hint); text-decoration: none; font-size: 17px;
    padding: 4px; border-radius: 4px; transition: color .15s, background .15s;
}
.user-logout:hover { color: var(--red-600); background: var(--red-50); }

/* ---- MAIN CONTENT ---- */
.main-content {
    margin-left: var(--sidebar-w);
    flex: 1; padding: 2rem;
    max-width: 100%;
    min-width: 0;
}

/* =============================================
   COMPOSANTS
   ============================================= */

/* ---- PAGE HEADER ---- */
.page-header {
    display: flex; align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.75rem; gap: 1rem;
    flex-wrap: wrap;
}
.page-header-left h1 { font-size: 20px; font-weight: 600; color: var(--text); }
.page-header-left p  { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* ---- STATS GRID ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px; margin-bottom: 1.75rem;
}
.stat-card {
    background: var(--surface); border: 0.5px solid var(--border);
    border-radius: var(--radius-lg); padding: 1rem 1.25rem;
}
.stat-label { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 600; color: var(--text); line-height: 1; }
.stat-sub   { font-size: 11px; color: var(--text-hint); margin-top: 5px; }

/* ---- CARD ---- */
.card {
    background: var(--surface); border: 0.5px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.25rem;
    margin-bottom: 1.25rem;
}
.card-header {
    display: flex; align-items: center;
    justify-content: space-between; margin-bottom: 1rem;
    flex-wrap: wrap; gap: 8px;
}
.card-title { font-size: 14px; font-weight: 600; color: var(--text); }

/* ---- BADGES ---- */
.badge {
    display: inline-block; font-size: 11px; font-weight: 500;
    padding: 3px 10px; border-radius: 20px; white-space: nowrap;
}
.badge-blue   { background: var(--blue-50);  color: var(--blue-800);  }
.badge-green  { background: var(--green-50); color: var(--green-800); }
.badge-amber  { background: var(--amber-50); color: var(--amber-800); }
.badge-red    { background: var(--red-50);   color: var(--red-800);   }
.badge-gray   { background: var(--gray-50);  color: var(--gray-800);  }

/* ---- BOUTONS ---- */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-md);
    font-size: 13px; font-weight: 500; cursor: pointer;
    border: 0.5px solid var(--border-md);
    background: var(--surface); color: var(--text);
    text-decoration: none; transition: background .15s;
    white-space: nowrap;
}
.btn:hover { background: var(--gray-50); }
.btn i { font-size: 15px; }
.btn-primary { background: var(--blue-600); color: #fff; border-color: var(--blue-600); }
.btn-primary:hover { background: var(--blue-800); border-color: var(--blue-800); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-danger { background: var(--red-50); color: var(--red-600); border-color: var(--red-50); }
.btn-danger:hover { background: var(--red-600); color: #fff; }

/* ---- TABLE (scrollable sur mobile) ---- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; min-width: 500px; }
thead th {
    text-align: left; font-size: 11px; font-weight: 600;
    color: var(--text-muted); text-transform: uppercase;
    letter-spacing: .05em; padding: 10px 12px;
    border-bottom: 0.5px solid var(--border-md); white-space: nowrap;
}
tbody td {
    padding: 11px 12px; border-bottom: 0.5px solid var(--border);
    font-size: 13px; vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }
.td-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---- FORMULAIRES ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: 12px; font-weight: 600; color: var(--text-muted); }
.form-control {
    padding: 10px 11px; border-radius: var(--radius-md);
    border: 0.5px solid var(--border-md);
    font-size: 14px; color: var(--text);
    background: var(--surface); font-family: var(--font);
    transition: border-color .15s; width: 100%;
    /* Empêche le zoom auto sur iOS */
    -webkit-appearance: none;
}
.form-control:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(24,95,165,0.08); }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-hint { font-size: 11px; color: var(--text-hint); }

/* ---- PROGRESS ---- */
.progress { height: 6px; background: var(--gray-100); border-radius: 3px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--blue-600); border-radius: 3px; transition: width .4s; }
.progress-bar.green { background: var(--green-600); }
.progress-bar.amber { background: #EF9F27; }

/* ---- DEVIS LIGNES ---- */
.lignes-header { display: flex; gap: 8px; padding: 6px 0; border-bottom: 0.5px solid var(--border); margin-bottom: 8px; }
.lignes-header span { font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }
.col-desc  { flex: 1; }
.col-unite { width: 70px; flex: 0 0 70px; }
.col-qte   { width: 70px; flex: 0 0 70px; }
.col-pu    { width: 110px; flex: 0 0 110px; }
.col-total { width: 120px; flex: 0 0 120px; text-align: right; }
.col-del   { width: 32px; flex: 0 0 32px; }
.ligne-devis { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.ligne-total { font-size: 13px; color: var(--text-muted); text-align: right; padding: 0 4px; min-width: 120px; }
.devis-totaux { text-align: right; padding: 12px 0; border-top: 0.5px solid var(--border-md); margin-top: 8px; }
.devis-totaux .ht  { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.devis-totaux .ttc { font-size: 17px; font-weight: 600; color: var(--text); }

/* ---- ALERTS ---- */
.alert {
    padding: 10px 14px; border-radius: var(--radius-md);
    font-size: 13px; margin-bottom: 1rem;
    display: flex; align-items: center; gap: 8px;
}
.alert-success { background: var(--green-50); color: var(--green-600); border-left: 3px solid var(--green-600); }
.alert-error   { background: var(--red-50);   color: var(--red-600);   border-left: 3px solid var(--red-600); }
.alert-info    { background: var(--blue-50);  color: var(--blue-600);  border-left: 3px solid var(--blue-600); }

/* ---- EMPTY STATE ---- */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.empty-state i { font-size: 40px; display: block; margin-bottom: 10px; opacity: .3; }
.empty-state p { font-size: 13px; }
.empty-state .btn { margin-top: 1rem; }

/* ---- DIVIDER ---- */
.divider { height: 0.5px; background: var(--border); margin: 1.25rem 0; }

/* ---- INFO GRID ---- */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.info-item label {
    font-size: 11px; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; display: block; margin-bottom: 3px;
}
.info-item span { font-size: 13px; color: var(--text); }

/* ---- PHOTOS ---- */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px; margin-top: 10px;
}
.photo-item {
    position: relative; border-radius: var(--radius-md);
    overflow: hidden; background: var(--gray-50);
    border: 0.5px solid var(--border); aspect-ratio: 4/3;
}
.photo-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-legende {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: rgba(0,0,0,.55); color: #fff;
    font-size: 11px; padding: 5px 8px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.photo-del {
    position: absolute; top: 5px; right: 5px;
    background: rgba(163,45,45,.9); color: #fff;
    border: none; border-radius: 4px; width: 26px; height: 26px;
    font-size: 13px; cursor: pointer; display: none;
    align-items: center; justify-content: center;
}
.photo-item:hover .photo-del { display: flex; }

/* ---- UPLOAD ZONE ---- */
.upload-zone {
    border: 2px dashed var(--border-md); border-radius: var(--radius-lg);
    padding: 1.5rem; text-align: center;
    color: var(--text-muted); font-size: 13px;
    cursor: pointer; transition: border-color .15s, background .15s;
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--blue-600); background: var(--blue-50); color: var(--blue-600);
}
.upload-zone i { font-size: 28px; display: block; margin-bottom: 8px; }
.upload-zone input[type=file] { display: none; }

/* ---- LIGHTBOX ---- */
.lightbox {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.88); z-index: 9999;
    align-items: center; justify-content: center;
    padding: 1rem;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 90vh; border-radius: 8px; object-fit: contain; }
.lightbox-close {
    position: absolute; top: 12px; right: 16px;
    color: #fff; font-size: 28px; cursor: pointer;
    background: none; border: none;
}

/* =============================================
   RESPONSIVE — TABLETTE (≤ 900px)
   ============================================= */
@media (max-width: 900px) {

    /* Sidebar cachée par défaut, slide depuis la gauche */
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 4px 0 20px rgba(0,0,0,.15);
    }
    .sidebar.open { transform: translateX(0); }

    /* Topbar visible */
    .topbar { display: flex; }

    /* Main content pleine largeur + espace pour la topbar */
    .main-content {
        margin-left: 0;
        padding: 1rem;
        padding-top: calc(var(--topbar-h) + 1rem);
    }

    /* Grilles */
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .form-grid  { grid-template-columns: 1fr; }
    .form-group.full { grid-column: 1; }
    .info-grid  { grid-template-columns: 1fr; }

    /* Page header empilé */
    .page-header { flex-direction: column; align-items: flex-start; }
    .page-header .btn { align-self: flex-start; }

    /* Textes plus petits */
    .page-header-left h1 { font-size: 18px; }
    .stat-value { font-size: 22px; }
}

/* =============================================
   RESPONSIVE — MOBILE (≤ 600px)
   ============================================= */
@media (max-width: 600px) {

    .main-content { padding: .75rem; padding-top: calc(var(--topbar-h) + .75rem); }

    /* Stats en 2 colonnes compactes */
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 1rem; }
    .stat-card  { padding: .75rem; }
    .stat-value { font-size: 20px; }
    .stat-label { font-size: 11px; }

    /* Cards moins de padding */
    .card { padding: 1rem; margin-bottom: .875rem; }
    .card-header { flex-direction: column; align-items: flex-start; }

    /* Boutons pleine largeur dans page-header */
    .page-header { gap: .75rem; }
    .page-header > .btn,
    .page-header > div { width: 100%; }
    .page-header > .btn { justify-content: center; }

    /* Actions table : icônes seulement */
    .td-actions .btn span { display: none; }

    /* Tables scroll horizontal avec indicateur */
    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: var(--radius-md);
    }
    .table-wrap::after {
        content: '';
        display: block;
        height: 2px;
        background: linear-gradient(to right, transparent, var(--blue-100), transparent);
    }
    table { min-width: 480px; }
    thead th { padding: 8px 10px; font-size: 10px; }
    tbody td { padding: 9px 10px; font-size: 12px; }

    /* Formulaires inputs tactiles */
    .form-control { font-size: 16px; padding: 12px; } /* 16px évite le zoom iOS */
    .form-label { font-size: 13px; }

    /* Dévis lignes : scroll horizontal */
    .ligne-devis {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 4px;
    }

    /* Photos grid 2 colonnes */
    .photo-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .photo-del  { display: flex !important; } /* toujours visible sur mobile (pas de hover) */

    /* Upload zone compact */
    .upload-zone { padding: 1rem; }
    .upload-zone i { font-size: 22px; margin-bottom: 6px; }

    /* Boutons sm plus grands (tactiles) */
    .btn-sm { padding: 7px 12px; font-size: 12px; }

    /* Alert responsive */
    .alert { font-size: 12px; padding: 8px 12px; }
}

/* =============================================
   RESPONSIVE — TRÈS PETIT (≤ 380px — Android entrée de gamme)
   ============================================= */
@media (max-width: 380px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
    .stat-value { font-size: 18px; }
    .card { padding: .875rem; }
    .btn  { padding: 8px 12px; font-size: 12px; }
    .page-header-left h1 { font-size: 17px; }
    .photo-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
}