:root {
    --bg-color: #0f172a; 
    --bg-surface: #1e293b; 
    --bg-surface-elevated: #334155; 
    --text-main: #f8fafc; 
    --text-muted: #94a3b8; 
    --primary: #3b82f6; 
    --primary-hover: #2563eb; 
    --accent-red: #ef4444;       
    --accent-green: #22c55e;
    --accent-orange: #f59e0b;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.2), 0 2px 4px -2px rgb(0 0 0 / 0.2);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --border-radius-base: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-surface-elevated); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Layout & Login */
.app-layout { display: flex; width: 100%; height: 100%; }

.login-card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    animation: fadeAndSlide 0.6s ease-out;
}

/* Sidebar e Header */
.sidebar {
    width: 270px;
    background-color: rgba(30, 41, 59, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 10;
}
.sidebar-header {
    padding: 28px 24px;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-header h2 { font-size: 1.35rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 12px; letter-spacing: -0.5px; }

.sidebar-user {
    padding: 20px;
    margin: 16px;
    background: rgba(0,0,0,0.2);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}
.user-name { font-weight: 600; color: white; text-transform: capitalize;}
.user-role { font-size: 0.75rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; }
.btn-logout { background: transparent; border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; padding: 8px; border-radius: 8px; cursor: pointer; transition: 0.2s; font-size: 0.8rem; font-weight: 600; text-align: center; }
.btn-logout:hover { background: rgba(239, 68, 68, 0.15); }

.sidebar-nav { padding: 10px 16px; display: flex; flex-direction: column; gap: 10px; }
.nav-item {
    display: flex; align-items: center; padding: 14px 18px; color: var(--text-muted); text-decoration: none; border-radius: 12px; font-weight: 500; transition: all 0.25s ease; gap: 14px; font-size: 0.95rem;
}
.nav-item i { font-size: 1.1rem; width: 20px; text-align: center; }
.nav-item:hover { background-color: rgba(255, 255, 255, 0.05); color: var(--text-main); transform: translateX(4px); }
.nav-item.active { background-color: rgba(59, 130, 246, 0.15); color: var(--primary); position: relative; }
.nav-item.active::before { content: ''; position: absolute; left: -16px; top: 50%; transform: translateY(-50%); width: 4px; height: 60%; background-color: var(--primary); border-radius: 0 4px 4px 0; }

.main-content {
    flex: 1; display: flex; flex-direction: column; overflow-y: auto;
    background: radial-gradient(circle at top right, rgba(30, 41, 59, 0.4) 0%, transparent 60%);
}
.top-header { padding: 36px 48px 24px; display: flex; justify-content: space-between; align-items: center; }
.top-header h1 { font-size: 2rem; font-weight: 700; letter-spacing: -0.5px; }

/* Utilities */
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }

/* Viste */
.view { display: none; padding: 0 48px 48px; animation: fadeAndSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.view.active { display: block; }
@keyframes fadeAndSlide { 0% { opacity: 0; transform: translateY(15px); } 100% { opacity: 1; transform: translateY(0); } }

/* Bottoni */
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%); color: white; border: none; padding: 12px 24px; border-radius: 10px; font-weight: 600; font-size: 0.95rem; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4); filter: brightness(1.05); }

.btn-secondary { background-color: transparent; color: var(--text-muted); border: 1px solid var(--border-color); padding: 10px 20px; border-radius: 10px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.btn-secondary:hover { background-color: rgba(255, 255, 255, 0.05); color: var(--text-main); }

.btn-icon-sm { background: rgba(255, 255, 255, 0.05); border: 1px solid transparent; color: var(--text-muted); padding: 8px; border-radius: 8px; cursor: pointer; transition: all 0.2s; display: inline-flex; align-items: center; justify-content: center; position: relative;}
.btn-icon-sm:hover { background-color: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.1); color: var(--text-main); }
.btn-icon-sm.delete:hover { background-color: rgba(239, 68, 68, 0.15); border-color: rgba(239, 68, 68, 0.2); color: #fca5a5; }

/* Dashboard Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.stat-card { background: rgba(30, 41, 59, 0.6); backdrop-filter: blur(12px); border: 1px solid var(--border-color); border-radius: var(--border-radius-base); padding: 24px; display: flex; align-items: center; gap: 20px; box-shadow: var(--shadow-sm); transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); position: relative; overflow: hidden; }
.stat-card::after { content: ''; position: absolute; top: 0; right: 0; width: 100px; height: 100px; background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%); border-radius: 50%; transform: translate(30%, -30%); }
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); background: rgba(30, 41, 59, 0.8); border-color: rgba(255, 255, 255, 0.15); }
.stat-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.1); }
.stat-icon.blue { background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.1)); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.2); }
.stat-icon.green { background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(22, 163, 74, 0.1)); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.2); }
.stat-icon.orange { background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.1)); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.2); }
.stat-icon.red { background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.1)); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.2); }
.stat-info h3 { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.stat-info p { font-size: 2rem; font-weight: 700; margin-top: 2px; letter-spacing: -1px; }

/* Liste */
.vehicles-alerts-list { display: flex; flex-direction: column; gap: 12px; }

.filters-bar { display: flex; gap: 16px; margin-bottom: 32px; background: rgba(30, 41, 59, 0.5); padding: 16px; border-radius: 12px; border: 1px solid var(--border-color); backdrop-filter: blur(8px); }
.search-box { position: relative; flex: 1; }
.search-box i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.search-box input { width: 100%; padding: 14px 14px 14px 46px; background-color: rgba(15, 23, 42, 0.6); border: 1px solid var(--border-color); border-radius: 10px; color: var(--text-main); font-size: 0.95rem; outline: none; transition: all 0.2s; }
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15); }
.select-box { padding: 12px 20px; background-color: rgba(15, 23, 42, 0.6); border: 1px solid var(--border-color); border-radius: 10px; color: var(--text-main); font-size: 0.95rem; outline: none; cursor: pointer; min-width: 180px; transition: border-color 0.2s; }

/* Griglie Layout */
.vehicles-grid, .warehouse-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }
.vehicle-card, .part-card { background: rgba(30, 41, 59, 0.5); backdrop-filter: blur(10px); border: 1px solid var(--border-color); border-radius: var(--border-radius-base); padding: 24px; box-shadow: var(--shadow-md); transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); position: relative; overflow: hidden; }
.vehicle-card::before, .part-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; transition: height 0.2s; }
.vehicle-card.status-active::before { background: linear-gradient(90deg, #22c55e, #16a34a); }
.vehicle-card.status-maintenance::before { background: linear-gradient(90deg, #f59e0b, #d97706); }
.vehicle-card.status-inactive::before { background: linear-gradient(90deg, #64748b, #475569); }
.part-card::before { background: linear-gradient(90deg, #3b82f6, #2563eb); }
.part-card.out-of-stock::before { background: linear-gradient(90deg, #ef4444, #dc2626); }

.vehicle-card:hover, .part-card:hover { box-shadow: var(--shadow-lg); border-color: rgba(255, 255, 255, 0.15); transform: translateY(-3px); }
.vehicle-card:hover::before, .part-card:hover::before { height: 6px; }

.vc-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.vc-plate { font-size: 1.25rem; font-weight: 800; letter-spacing: 1px; background: rgba(255,255,255,0.1); padding: 6px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.08); color: var(--text-main); }
.vc-actions { display: flex; gap: 8px; opacity: 1; transition: opacity 0.2s; }

.vc-model { font-size: 1.25rem; color: var(--primary); margin-bottom: 20px; font-weight: 700; cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-block;}
.vc-model:hover { color: #60a5fa; text-decoration: underline; transform: translateY(-1px);}

.vc-details { display: flex; flex-direction: column; gap: 12px; font-size: 0.9rem; color: var(--text-muted); background: rgba(0,0,0,0.15); padding: 16px; border-radius: 10px; }
.vc-details div { display: flex; align-items: center; gap: 12px; }
.vc-details i { width: 20px; text-align: center; font-size: 1rem; color: var(--text-main); opacity: 0.7; }

.va-action-btn { display: flex; align-items: center; justify-content: flex-start; gap: 12px; padding: 14px 20px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; color: var(--text-main); font-weight: 600; cursor: pointer; transition: all 0.2s; font-size: 1rem; text-align: left;}
.va-action-btn i { font-size: 1.2rem; width: 24px; text-align: center; }
.va-action-btn:hover { background: rgba(255,255,255,0.1); transform: translateX(4px); border-color: rgba(255,255,255,0.2);}
.va-action-btn.delete { color: #fca5a5; border-color: rgba(239, 68, 68, 0.3);}
.va-action-btn.delete:hover { background: rgba(239, 68, 68, 0.15); border-color: rgba(239, 68, 68, 0.4);}
.va-action-btn.primary { color: #60a5fa; border-color: rgba(59, 130, 246, 0.3);}
.va-action-btn.primary:hover { background: rgba(59, 130, 246, 0.15); border-color: rgba(59, 130, 246, 0.4);}

/* Modals */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15, 23, 42, 0.75); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); z-index: 100; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal { background: var(--bg-surface); border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; width: 100%; max-width: 550px; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255,255,255,0.1); transform: scale(0.95) translateY(20px); transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header { padding: 24px 32px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { font-size: 1.4rem; font-weight: 700; }
.close-modal { background: rgba(255,255,255,0.05); border: none; color: var(--text-muted); font-size: 1.25rem; cursor: pointer; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
.close-modal:hover { background: rgba(255,255,255,0.1); color: var(--text-main); transform: rotate(90deg); }

.modal form { padding: 32px; display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-row { display: flex; gap: 20px; }
.form-row .form-group { flex: 1; }
.form-group label { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { padding: 12px 16px; background: rgba(15, 23, 42, 0.4); border: 1px solid var(--border-color); border-radius: 10px; color: var(--text-main); font-size: 0.95rem; outline: none; transition: all 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15); background: rgba(15, 23, 42, 0.7); }
.form-group input[type="date"]::-webkit-calendar-picker-indicator { filter: invert(1); opacity: 0.6; cursor: pointer; }
.modal-footer { padding-top: 10px; display: flex; justify-content: flex-end; gap: 14px; }

/* Segnalazioni */
.report-item {
    background: rgba(0,0,0,0.2); border: 1px solid var(--border-color); border-radius: 10px; padding: 16px; margin-bottom: 8px; display: flex; flex-direction: column; gap: 8px; position:relative; overflow:hidden;
}
.report-item.resolved { border-color: rgba(34, 197, 94, 0.3); opacity: 0.6; }
.report-item.resolved::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent-green); }
.report-item.open::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent-orange); }

.report-header { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.report-badge {
    position: absolute; top: -8px; right: -8px; background: var(--accent-red); color: white; width: 20px; height: 20px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: bold; border: 2px solid var(--bg-surface); z-index: 1; pointer-events:none;
}