@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

/* ═══════════════════════════════════════════
   ADMIN DESIGN SYSTEM 2026
   Mobile-first · Consistent con sito pubblico
   ═══════════════════════════════════════════ */
:root {
  --teal:       #1FA29F;
  --teal-dark:  #178a87;
  --teal-glass: rgba(31,162,159,.1);
  --teal-glow:  rgba(31,162,159,.25);
  --coral:      #ED724D;
  --coral-glass:rgba(237,114,77,.1);
  --bg:         #F7F7F5;
  --white:      #FFFFFF;
  --dark:       #0E1117;
  --text-1:     #0A0A0A;
  --text-2:     #525252;
  --text-3:     #A3A3A3;
  --border:     rgba(0,0,0,.08);
  --danger:     #ef4444;
  --success:    #22c55e;
  --warning:    #f59e0b;
  --pill:       9999px;
  --r-xl:       20px;
  --r:          12px;
  --r-sm:       8px;
  --shadow-sm:  0 2px 8px rgba(0,0,0,.07);
  --shadow:     0 4px 20px rgba(0,0,0,.1);
  --t:          .25s;
  --ease:       cubic-bezier(.4,0,.2,1);
  --sidebar-w:  248px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text-1);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ══════════════════════════════
   LAYOUT
   ══════════════════════════════ */
.admin-layout{
  display:grid;
  grid-template-columns:var(--sidebar-w) 1fr;
  min-height:100vh;
}

/* ══════════════════════════════
   OVERLAY (mobile)
   ══════════════════════════════ */
.admin-overlay{
  display:none;position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,.5);backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.admin-overlay.active{opacity:1;pointer-events:all}

/* ══════════════════════════════
   SIDEBAR
   ══════════════════════════════ */
.sidebar{
  background:var(--dark);color:#fff;
  display:flex;flex-direction:column;
  position:fixed;top:0;left:0;
  width:var(--sidebar-w);height:100vh;
  overflow-y:auto;z-index:210;
  transition:transform .38s var(--ease);
}
.sidebar-brand{
  display:flex;align-items:center;gap:.75rem;
  padding:1.2rem 1rem;
  border-bottom:1px solid rgba(255,255,255,.07);
  flex-shrink:0;
}
.sidebar-brand img{height:34px;width:auto;flex-shrink:0}
.sidebar-brand-text strong{font-family:'Poppins',sans-serif;font-size:.85rem;display:block;color:#fff}
.sidebar-brand-text span{font-size:.7rem;color:rgba(255,255,255,.35)}
.sidebar-close{
  display:none;margin-left:auto;
  background:rgba(255,255,255,.08);border:none;
  color:rgba(255,255,255,.6);cursor:pointer;
  width:30px;height:30px;border-radius:var(--pill);
  font-size:.8rem;transition:all var(--t);flex-shrink:0;
}
.sidebar-close:hover{background:rgba(255,255,255,.16);color:#fff}

.sidebar-nav{padding:.75rem 0;flex:1}
.nav-section{
  padding:.5rem 1rem;
  font-size:.65rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(255,255,255,.25);margin-top:.4rem;
}
.sidebar-nav a{
  display:flex;align-items:center;gap:.7rem;
  padding:.7rem 1rem;font-size:.88rem;
  color:rgba(255,255,255,.6);transition:all var(--t);
  border-left:3px solid transparent;
  font-weight:500;
}
.sidebar-nav a:hover{background:rgba(255,255,255,.06);color:#fff;border-left-color:rgba(255,255,255,.2)}
.sidebar-nav a.active{background:rgba(31,162,159,.18);color:var(--teal);border-left-color:var(--teal)}
.nav-icon{width:20px;text-align:center;font-size:.9rem;flex-shrink:0}

.sidebar-footer{padding:.9rem 1rem;border-top:1px solid rgba(255,255,255,.07);flex-shrink:0}
.sidebar-user{display:flex;align-items:center;gap:.7rem;margin-bottom:.8rem}
.sidebar-user-avatar{
  width:34px;height:34px;border-radius:var(--pill);flex-shrink:0;
  background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:'Poppins',sans-serif;font-size:.88rem;font-weight:700;
}
.sidebar-user strong{display:block;font-size:.83rem;color:#fff;font-weight:600}
.sidebar-user span{font-size:.7rem;color:rgba(255,255,255,.35)}
.sidebar-logout{
  display:flex;align-items:center;gap:.55rem;
  color:rgba(255,255,255,.4);font-size:.82rem;
  padding:.5rem .6rem;border-radius:var(--r-sm);
  transition:all var(--t);
}
.sidebar-logout:hover{background:rgba(239,68,68,.12);color:#ef4444}

/* ══════════════════════════════
   MAIN CONTENT
   ══════════════════════════════ */
.main-content{
  margin-left:var(--sidebar-w);
  display:flex;flex-direction:column;min-height:100vh;
}

/* ══════════════════════════════
   TOPBAR
   ══════════════════════════════ */
.topbar{
  background:var(--white);
  border-bottom:1px solid var(--border);
  padding:.85rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:100;
  box-shadow:var(--shadow-sm);
}
.topbar-left{display:flex;align-items:center;gap:.9rem}
.admin-hamburger{
  display:none;
  background:transparent;border:1.5px solid var(--border);
  color:var(--text-2);cursor:pointer;
  width:36px;height:36px;border-radius:var(--pill);
  font-size:.85rem;transition:all var(--t);
  align-items:center;justify-content:center;
}
.admin-hamburger:hover{border-color:var(--teal);color:var(--teal);background:var(--teal-glass)}
.topbar h1{font-family:'Poppins',sans-serif;font-size:1.05rem;font-weight:700;color:var(--text-1)}
.topbar-right{display:flex;align-items:center;gap:.75rem}
.user-chip{
  display:flex;align-items:center;gap:.5rem;
  padding:.35rem .85rem .35rem .5rem;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--pill);font-size:.8rem;font-weight:600;
}
.user-chip-avatar{
  width:26px;height:26px;border-radius:var(--pill);
  background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:.72rem;font-weight:700;font-family:'Poppins',sans-serif;
}

/* ══════════════════════════════
   PAGE BODY
   ══════════════════════════════ */
.page-body{padding:1.5rem;flex:1}

/* ══════════════════════════════
   STATS GRID
   ══════════════════════════════ */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.5rem}
.stat-card{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-xl);padding:1.3rem 1.2rem;
  display:flex;align-items:center;gap:.9rem;
  box-shadow:var(--shadow-sm);transition:all var(--t);
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.stat-icon{
  width:44px;height:44px;border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;flex-shrink:0;
}
.stat-icon.teal{background:var(--teal-glass);color:var(--teal)}
.stat-icon.coral{background:var(--coral-glass);color:var(--coral)}
.stat-icon.gray{background:var(--bg);color:var(--text-3)}
.stat-icon.green{background:rgba(34,197,94,.1);color:#16a34a}
.stat-num{font-family:'Poppins',sans-serif;font-size:1.6rem;font-weight:800;line-height:1;color:var(--text-1)}
.stat-label{font-size:.74rem;color:var(--text-3);margin-top:.2rem;font-weight:500}

/* ══════════════════════════════
   CARD
   ══════════════════════════════ */
.card{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-xl);box-shadow:var(--shadow-sm);overflow:hidden;
}
.card-header{
  padding:1rem 1.4rem;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
}
.card-header h2{font-family:'Poppins',sans-serif;font-size:.95rem;font-weight:700}

/* ══════════════════════════════
   TABLE (desktop)
   ══════════════════════════════ */
table{width:100%;border-collapse:collapse}
th{
  text-align:left;padding:.7rem 1.2rem;
  font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--text-3);background:var(--bg);border-bottom:1px solid var(--border);
}
td{
  padding:.9rem 1.2rem;border-bottom:1px solid rgba(0,0,0,.04);
  font-size:.88rem;vertical-align:middle;
}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--bg)}

/* TABLE MOBILE → card list */
.table-wrapper{overflow-x:auto}

/* ══════════════════════════════
   BADGES
   ══════════════════════════════ */
.badge{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.22rem .7rem;border-radius:var(--pill);
  font-size:.7rem;font-weight:700;font-family:'Poppins',sans-serif;
}
.badge-success{background:rgba(34,197,94,.12);color:#15803d}
.badge-warning{background:rgba(245,158,11,.12);color:#92400e}
.badge-gray{background:var(--bg);color:var(--text-2)}

/* ══════════════════════════════
   ACTION BUTTONS
   ══════════════════════════════ */
.action-btns{display:flex;gap:.4rem;flex-wrap:wrap}
.btn-sm{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.38rem .85rem;border-radius:var(--pill);
  font-size:.76rem;font-weight:600;cursor:pointer;border:none;
  transition:all var(--t);text-decoration:none;white-space:nowrap;
  font-family:'Poppins',sans-serif;
}
.btn-primary{background:var(--teal);color:#fff;box-shadow:0 2px 8px var(--teal-glow)}
.btn-primary:hover{background:var(--teal-dark);transform:translateY(-1px)}
.btn-secondary{background:var(--bg);color:var(--text-2);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--white);border-color:var(--teal);color:var(--teal)}
.btn-danger{background:rgba(239,68,68,.1);color:var(--danger)}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-warning{background:rgba(245,158,11,.1);color:#92400e}
.btn-warning:hover{background:var(--warning);color:#fff}
.btn-lg{padding:.72rem 1.6rem;font-size:.9rem;border-radius:var(--pill)}

/* ══════════════════════════════
   FORM
   ══════════════════════════════ */
.form-card{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-xl);box-shadow:var(--shadow-sm);padding:1.5rem;
}
.form-section-title{
  font-family:'Poppins',sans-serif;font-size:.8rem;font-weight:700;
  color:var(--text-2);text-transform:uppercase;letter-spacing:.07em;
  margin-bottom:1.2rem;display:flex;align-items:center;gap:.5rem;
}
.form-section-title i{color:var(--teal)}
.form-group{margin-bottom:1.1rem}
.form-group label{
  display:block;font-size:.82rem;font-weight:600;
  color:var(--text-2);margin-bottom:.35rem;
}
.optional{font-weight:400;color:var(--text-3);font-size:.75rem}
input[type=text],input[type=password],input[type=email],select,textarea{
  width:100%;padding:.7rem 1rem;
  border:1.5px solid var(--border);border-radius:var(--r);
  font-family:'Inter',sans-serif;font-size:.9rem;color:var(--text-1);
  background:var(--white);transition:all var(--t);outline:none;
}
input:focus,select:focus,textarea:focus{
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(31,162,159,.12);
}
textarea{resize:vertical;min-height:140px;line-height:1.65}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.form-hint{font-size:.75rem;color:var(--text-3);margin-top:.3rem}
.form-actions{
  display:flex;align-items:center;gap:.75rem;
  padding-top:1.2rem;border-top:1px solid var(--border);flex-wrap:wrap;
}

/* Form layout: main + sidebar */
.form-layout{display:grid;grid-template-columns:1fr 280px;gap:1.2rem;align-items:start}
.form-sidebar{display:flex;flex-direction:column;gap:1rem;position:sticky;top:72px}

/* ══════════════════════════════
   FILE UPLOAD
   ══════════════════════════════ */
.upload-zone{
  border:2px dashed var(--border);border-radius:var(--r);
  padding:1.8rem;text-align:center;cursor:pointer;
  transition:all var(--t);background:var(--bg);
}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--teal);background:var(--teal-glass)}
.upload-zone input[type=file]{display:none}
.upload-zone-icon{font-size:2rem;margin-bottom:.6rem;color:var(--text-3)}
.upload-zone p{font-size:.85rem;color:var(--text-3)}
.upload-zone strong{color:var(--teal)}
.files-list{margin-top:1rem;display:flex;flex-direction:column;gap:.5rem}
.file-row{
  display:flex;align-items:center;gap:.75rem;
  padding:.75rem .9rem;background:var(--bg);
  border-radius:var(--r);border:1px solid var(--border);
}
.file-row-icon{font-size:1.2rem;flex-shrink:0;color:var(--text-3)}
.file-row-info{flex:1;min-width:0}
.file-row-info strong{font-size:.82rem;font-weight:600;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-row-info span{font-size:.72rem;color:var(--text-3)}
.file-row-del{background:none;border:none;cursor:pointer;color:var(--text-3);padding:.2rem .4rem;border-radius:var(--r-sm);transition:all var(--t-fast)}
.file-row-del:hover{background:rgba(239,68,68,.1);color:var(--danger)}
.img-thumb{width:44px;height:44px;object-fit:cover;border-radius:var(--r-sm);flex-shrink:0}

/* ══════════════════════════════
   TOGGLE
   ══════════════════════════════ */
.toggle-wrap{display:flex;align-items:center;gap:.8rem}
.toggle{position:relative;display:inline-block;width:44px;height:24px}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--border);border-radius:var(--pill);transition:all .3s;cursor:pointer}
.toggle-slider::before{content:'';position:absolute;width:18px;height:18px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:.3s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle input:checked+.toggle-slider{background:var(--teal)}
.toggle input:checked+.toggle-slider::before{transform:translateX(20px)}
.toggle-label{font-size:.88rem;font-weight:600;color:var(--text-2)}

/* ══════════════════════════════
   ALERTS
   ══════════════════════════════ */
.alert{
  padding:.85rem 1.1rem;border-radius:var(--r);
  margin-bottom:1.2rem;font-size:.88rem;
  display:flex;align-items:flex-start;gap:.6rem;
}
.alert-success{background:rgba(34,197,94,.1);color:#15803d;border:1px solid rgba(34,197,94,.2)}
.alert-error{background:rgba(239,68,68,.1);color:#991b1b;border:1px solid rgba(239,68,68,.2)}

/* ══════════════════════════════
   EMPTY STATE
   ══════════════════════════════ */
.empty-state-admin{text-align:center;padding:3.5rem 2rem;color:var(--text-3)}
.empty-state-admin .empty-icon{font-size:2.5rem;margin-bottom:.8rem;opacity:.4}
.empty-state-admin h3{font-family:'Poppins',sans-serif;font-size:1rem;font-weight:700;color:var(--text-2);margin-bottom:.4rem}
.empty-state-admin p{font-size:.85rem}

/* ══════════════════════════════
   LOGIN PAGE
   ══════════════════════════════ */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:var(--dark);padding:1.5rem;
  background-image:radial-gradient(ellipse at 70% 20%, rgba(31,162,159,.15) 0%, transparent 55%),
                   radial-gradient(ellipse at 20% 80%, rgba(237,114,77,.1) 0%, transparent 50%);
}
.login-card{
  background:rgba(255,255,255,.97);
  border:1px solid rgba(255,255,255,.6);
  border-radius:var(--r-xl);
  padding:2.5rem 2rem;
  width:100%;max-width:380px;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.login-logo{text-align:center;margin-bottom:2rem}
.login-logo img{height:52px;margin:0 auto .9rem}
.login-title{font-family:'Poppins',sans-serif;font-size:1.25rem;font-weight:800;color:var(--teal);margin-bottom:.2rem}
.login-subtitle{font-size:.8rem;color:var(--text-3)}
.login-btn{
  width:100%;justify-content:center;margin-top:.5rem;
  padding:.8rem 1.5rem;font-size:.92rem;border-radius:var(--pill);
  display:flex;align-items:center;gap:.5rem;cursor:pointer;border:none;
  background:var(--teal);color:#fff;font-family:'Poppins',sans-serif;
  font-weight:700;transition:all var(--t);box-shadow:0 4px 16px var(--teal-glow);
}
.login-btn:hover{background:var(--teal-dark);transform:translateY(-1px)}
.login-back{
  display:block;text-align:center;margin-top:1.2rem;
  font-size:.78rem;color:var(--text-3);transition:color var(--t);
}
.login-back:hover{color:var(--teal)}

/* ══════════════════════════════
   MOBILE ARTICLE CARDS (≤768px)
   ══════════════════════════════ */
.article-mobile-list{display:none;flex-direction:column;gap:.75rem;padding:1rem 1rem}
.article-mobile-card{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-xl);padding:1.1rem 1.2rem;
}
.amc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem;margin-bottom:.7rem}
.amc-badges{display:flex;gap:.4rem;flex-wrap:wrap}
.amc-title{font-family:'Poppins',sans-serif;font-size:.92rem;font-weight:700;margin-bottom:.3rem;line-height:1.3}
.amc-sub{font-size:.78rem;color:var(--text-3);margin-bottom:.8rem}
.amc-meta{display:flex;align-items:center;gap:.6rem;font-size:.74rem;color:var(--text-3);margin-bottom:.9rem}
.amc-actions{display:flex;gap:.5rem;flex-wrap:wrap}

/* ══════════════════════════════
   RESPONSIVE
   ══════════════════════════════ */
@media(max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .form-layout{grid-template-columns:1fr}
  .form-sidebar{position:static}
}

@media(max-width:768px){
  /* Grid: collassa a 1 colonna */
  .admin-layout{grid-template-columns:1fr}

  /* Sidebar → slide-out drawer */
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-close{display:flex;align-items:center;justify-content:center}
  .admin-overlay{display:block}

  /* Main: full width */
  .main-content{margin-left:0;grid-column:1}

  /* Topbar */
  .topbar{padding:.7rem 1rem}
  .admin-hamburger{display:flex}
  .user-chip .user-chip-label{display:none}

  /* Page body */
  .page-body{padding:1rem}

  /* Stats: 2 col */
  .stats-grid{grid-template-columns:1fr 1fr;gap:.75rem}
  .stat-card{padding:1rem}
  .stat-num{font-size:1.4rem}

  /* Table → hide, show mobile cards */
  .table-wrapper table{display:none}
  .article-mobile-list{display:flex}
  .card-header{flex-direction:column;align-items:flex-start;gap:.75rem}
  .card-header .filter-group{width:100%;overflow-x:auto;display:flex;gap:.4rem;scrollbar-width:none}
  .card-header .filter-group::-webkit-scrollbar{display:none}

  /* Form */
  .form-row{grid-template-columns:1fr}
  .form-actions{flex-direction:column}
  .form-actions .btn-sm{width:100%;justify-content:center}
}

@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-icon{width:36px;height:36px;font-size:.95rem}
  .stat-num{font-size:1.2rem}
  .login-card{padding:2rem 1.4rem}
}