/* Tema dark allineato a www.ilbarone.net */

:root {
    --bg:        #0d1117;
    --bg2:       #161b22;
    --bg3:       #1e2430;
    --text:      #e6edf3;
    --muted:     #8b949e;
    --border:    rgba(255,255,255,.08);
    --border2:   rgba(255,255,255,.12);
    --accent:    #10ffb4;
    --cyan:      #06b6d4;
    --purple:    #a855f7;
    --orange:    #f59e0b;
    --red:       #ef4444;
    --green:     #10b981;

    --primary-color:   var(--cyan);
    --secondary-color: var(--accent);
    --success-color:   var(--green);
    --warning-color:   var(--orange);
    --danger-color:    var(--red);

    --border-radius: 14px;
    --box-shadow:    0 12px 40px rgba(0,0,0,.45);
    --transition:    all .2s ease;
}

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

body {
    font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.header {
    background: linear-gradient(135deg, rgba(6,182,212,.12), rgba(168,85,247,.10));
    border: 1px solid var(--border);
    color: var(--text);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--box-shadow), 0 0 0 1px rgba(6,182,212,.06) inset;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 60% 60% at 20% 20%, rgba(6,182,212,.18), transparent 70%),
      radial-gradient(ellipse 50% 50% at 80% 80%, rgba(168,85,247,.16), transparent 70%);
    pointer-events: none;
    z-index: 0;
}
.header > * { position: relative; z-index: 1; }
.header h1 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, #06b6d4, #10ffb4 60%, #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}
.header h1 i { -webkit-text-fill-color: var(--cyan); }
.header p {
    font-size: 1rem;
    color: var(--muted);
}

/* Pannelli (filters / stats / chart / tabella) */
.filters-panel,
.stats-panel,
.chart-container,
.data-table-container {
    background: var(--bg2);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--box-shadow), 0 0 0 1px var(--border) inset;
    border: 1px solid var(--border);
}

.filters-panel h2,
.stats-panel h2,
.chart-container h2,
.data-table-container h2 {
    color: var(--text);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.filters-panel h2 i,
.stats-panel h2 i,
.chart-container h2 i,
.data-table-container h2 i {
    color: var(--cyan);
}

/* Filtri */
.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1rem;
}
.filter-item { flex: 1; min-width: 150px; }
.filter-item label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
    color: var(--muted);
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.filter-item select {
    width: 100%;
    padding: 0.7rem 0.8rem;
    border: 1px solid var(--border2);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--bg3);
    color: var(--text);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238b949e'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right .6rem center;
    padding-right: 2rem;
}
.filter-item select:focus {
    border-color: var(--cyan);
    outline: none;
    box-shadow: 0 0 0 3px rgba(6,182,212,.2);
}

/* Bottoni */
.buttons {
    display: flex;
    gap: .75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}
.btn {
    padding: 0.65rem 1.2rem;
    border: 1px solid transparent;
    border-radius: 10px;
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    line-height: 1.2;
    user-select: none;
}
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }

.btn-primary {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    color: #fff;
    border-color: rgba(6,182,212,.5);
    box-shadow: 0 4px 14px rgba(6,182,212,.25);
}
.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(6,182,212,.4);
}

.btn-secondary {
    background: var(--bg3);
    color: var(--text);
    border-color: var(--border2);
}
.btn-secondary:hover:not(:disabled) {
    background: rgba(255,255,255,.05);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-danger {
    background: rgba(239,68,68,.12);
    color: var(--red);
    border-color: rgba(239,68,68,.4);
}
.btn-danger:hover:not(:disabled) {
    background: rgba(239,68,68,.2);
    transform: translateY(-1px);
}

.btn-warning {
    background: rgba(245,158,11,.12);
    color: var(--orange);
    border-color: rgba(245,158,11,.4);
}
.btn-warning:hover:not(:disabled) {
    background: rgba(245,158,11,.2);
    transform: translateY(-1px);
}

/* Statistiche */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.stat-card {
    background: var(--bg3);
    padding: 1.2rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    border-left: 3px solid var(--cyan);
    transition: var(--transition);
}
.stat-card:hover {
    transform: translateY(-3px);
    border-color: var(--border2);
    box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.stat-card h3 {
    font-size: .75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 0.4rem;
    font-weight: 600;
}
.stat-card .value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text);
}
.stat-card.avg   { border-left-color: var(--cyan); }
.stat-card.max   { border-left-color: var(--accent); }
.stat-card.min   { border-left-color: var(--orange); }
.stat-card.total { border-left-color: var(--purple); }

/* Grafico */
.chart-wrapper {
    position: relative;
    height: 460px;
    width: 100%;
    background: var(--bg);
    border-radius: 10px;
    padding: .5rem;
    border: 1px solid var(--border);
}

/* Lazy placeholder per grafici on-demand */
.lazy-placeholder {
    text-align: center;
    padding: 3rem 1.5rem;
    background: var(--bg3);
    border: 1px dashed var(--border2);
    border-radius: 10px;
}
.lazy-placeholder i {
    font-size: 2.4rem;
    color: var(--muted);
    margin-bottom: .8rem;
    display: block;
}
.lazy-placeholder p {
    color: var(--muted);
    margin-bottom: 1.2rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    font-size: .92rem;
}

/* Tabella dati */
.data-table-container { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: .5rem;
    font-size: .9rem;
}
.data-table th {
    background: var(--bg3);
    color: var(--text);
    text-align: left;
    padding: .8rem 1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border2);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.data-table td {
    padding: .7rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.data-table tr:hover td { background: rgba(255,255,255,.025); }
.data-table tr:nth-child(even) td { background: rgba(255,255,255,.015); }

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 1rem;
}

/* Messaggi */
.message {
    padding: 1rem 1.2rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-weight: 500;
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: .6rem;
}
.message.info    { background: rgba(6,182,212,.08); color: #67e8f9;  border-color: rgba(6,182,212,.3); }
.message.success { background: rgba(16,185,129,.08); color: #34d399; border-color: rgba(16,185,129,.3); }
.message.warning { background: rgba(245,158,11,.08); color: var(--orange); border-color: rgba(245,158,11,.3); }
.message.error   { background: rgba(239,68,68,.08); color: var(--red);  border-color: rgba(239,68,68,.3); }

/* Spinner per i bottoni in caricamento */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Utilità */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.hidden { display: none !important; }
.btn-right { margin-left: auto; }

/* Scrollbar custom */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--border2); }

/* Responsive */
@media (max-width: 768px) {
    body { padding: 12px; }
    .filters-panel,
    .stats-panel,
    .chart-container,
    .data-table-container { padding: 1rem; }
    .filter-group { flex-direction: column; }
    .filter-item { width: 100%; }
    .buttons { flex-direction: column; }
    .btn { width: 100%; }
    .btn-right { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr; }
    .chart-wrapper { height: 320px; }
    .data-table { font-size: 0.82rem; }
    .data-table th, .data-table td { padding: .55rem .5rem; }
}