/* ============================================
   GLOBAL SERVICE — Contabilità
   Grafica: bianco, nero, grigio
   Stile: programma da ufficio
   ============================================ */

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

:root {
    --nero:        #000000;
    --grigio-800:  #1a1a1a;
    --grigio-700:  #2d2d2d;
    --grigio-600:  #4a4a4a;
    --grigio-500:  #6b6b6b;
    --grigio-400:  #9a9a9a;
    --grigio-300:  #c4c4c4;
    --grigio-200:  #e0e0e0;
    --grigio-100:  #f0f0f0;
    --grigio-50:   #f8f8f8;
    --bianco:      #ffffff;
    --sidebar-w:   220px;
    --topbar-h:    48px;
    --font-mono:   'Courier New', monospace;
    --font-sans:   'Segoe UI', system-ui, -apple-system, sans-serif;
}

html, body {
    height: 100%;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--nero);
    background: var(--grigio-100);
}

/* ============================================
   LAYOUT PRINCIPALE
   ============================================ */

.app-wrapper {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ============================================
   SIDEBAR
   ============================================ */

.sidebar {
    width: var(--sidebar-w);
    background: var(--grigio-800);
    color: var(--bianco);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
    transition: transform 0.2s;
    z-index: 100;
}

.sidebar-brand {
    padding: 18px 16px 14px;
    border-bottom: 1px solid var(--grigio-700);
}

.brand-title {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--bianco);
}

.brand-sub {
    display: block;
    font-size: 10px;
    color: var(--grigio-400);
    margin-top: 2px;
    letter-spacing: 0.08em;
}

.sidebar-section {
    padding: 12px 0 8px;
    border-bottom: 1px solid var(--grigio-700);
}

.sidebar-label {
    display: block;
    font-size: 9px;
    letter-spacing: 0.15em;
    color: var(--grigio-500);
    padding: 0 16px 6px;
    font-weight: 600;
}

.nav-link {
    display: block;
    padding: 7px 16px;
    color: var(--grigio-300);
    text-decoration: none;
    font-size: 12px;
    transition: background 0.1s, color 0.1s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: var(--grigio-700);
    color: var(--bianco);
}

.nav-link.active {
    background: var(--grigio-700);
    color: var(--bianco);
    border-left-color: var(--bianco);
}

.sidebar-footer {
    margin-top: auto;
    padding: 14px 16px;
    border-top: 1px solid var(--grigio-700);
}

.sidebar-user {
    display: block;
    font-size: 11px;
    color: var(--grigio-400);
    margin: 4px 0 10px;
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--grigio-600);
    color: var(--grigio-400);
    padding: 5px 12px;
    cursor: pointer;
    font-size: 11px;
    width: 100%;
    transition: 0.1s;
}

.btn-logout:hover {
    background: var(--grigio-700);
    color: var(--bianco);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--grigio-50);
}

/* ============================================
   TOPBAR
   ============================================ */

.topbar {
    height: var(--topbar-h);
    background: var(--bianco);
    border-bottom: 1px solid var(--grigio-200);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 12px;
    flex-shrink: 0;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--grigio-600);
    display: none;
    padding: 4px 8px;
}

.topbar-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--grigio-700);
    letter-spacing: 0.02em;
}

.topbar-anno {
    margin-left: auto;
    background: var(--nero);
    color: var(--bianco);
    font-size: 11px;
    padding: 3px 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* ============================================
   ALERT
   ============================================ */

.alert {
    padding: 10px 20px;
    font-size: 12px;
    border-left: 3px solid;
}

.alert-success {
    background: #f0f0f0;
    border-color: var(--nero);
    color: var(--nero);
}

.alert-error {
    background: #f8f0f0;
    border-color: #cc0000;
    color: #cc0000;
}

/* ============================================
   PAGE CONTENT
   ============================================ */

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* ============================================
   TITOLI PAGINA
   ============================================ */

.page-header {
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--nero);
}

.page-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--nero);
}

.page-subtitle {
    font-size: 12px;
    color: var(--grigio-500);
    margin-top: 4px;
}

/* ============================================
   SCHEDE ANNI (dashboard home)
   ============================================ */

.anni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    max-width: 900px;
}

.anno-card {
    background: var(--bianco);
    border: 2px solid var(--grigio-200);
    padding: 24px 20px;
    text-decoration: none;
    color: var(--nero);
    display: block;
    transition: border-color 0.15s;
}

.anno-card:hover {
    border-color: var(--nero);
}

.anno-card .anno-num {
    font-size: 28px;
    font-weight: 700;
    font-family: var(--font-mono);
    display: block;
}

.anno-card .anno-label {
    font-size: 10px;
    color: var(--grigio-500);
    letter-spacing: 0.1em;
    margin-top: 4px;
    display: block;
}

.anno-card .anno-stats {
    margin-top: 12px;
    font-size: 11px;
    color: var(--grigio-600);
}

/* ============================================
   SCHEDE RIEPILOGO
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    padding: 16px 18px;
}

.stat-label {
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--grigio-500);
    font-weight: 600;
    text-transform: uppercase;
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-top: 6px;
    color: var(--nero);
}

.stat-value.positivo { color: #006600; }
.stat-value.negativo { color: #cc0000; }

.stat-sub {
    font-size: 10px;
    color: var(--grigio-400);
    margin-top: 3px;
}

/* ============================================
   TABELLE
   ============================================ */

.table-wrapper {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

thead {
    background: var(--grigio-800);
    color: var(--bianco);
}

thead th {
    padding: 10px 12px;
    text-align: left;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

thead th.num {
    text-align: right;
}

tbody tr {
    border-bottom: 1px solid var(--grigio-100);
    transition: background 0.1s;
}

tbody tr:hover {
    background: var(--grigio-50);
}

tbody td {
    padding: 9px 12px;
    color: var(--grigio-700);
    vertical-align: middle;
}

tbody td.num {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 12px;
}

tbody td.bold {
    font-weight: 700;
    color: var(--nero);
}

tfoot {
    background: var(--grigio-100);
    border-top: 2px solid var(--nero);
}

tfoot td {
    padding: 10px 12px;
    font-weight: 700;
    font-size: 12px;
    font-family: var(--font-mono);
}

tfoot td.num {
    text-align: right;
}

/* Badge tipo fattura */
.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    border: 1px solid;
}

.badge-emessa  { border-color: var(--nero); color: var(--nero); }
.badge-ricevuta { border-color: var(--grigio-500); color: var(--grigio-500); }

/* ============================================
   FORM E INPUT
   ============================================ */

.form-section {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    padding: 24px;
    margin-bottom: 20px;
}

.form-title {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--grigio-200);
    text-transform: uppercase;
}

.form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 160px;
}

label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--grigio-600);
    text-transform: uppercase;
}

input[type="text"],
input[type="date"],
input[type="email"],
input[type="number"],
select,
textarea {
    border: 1px solid var(--grigio-300);
    padding: 7px 10px;
    font-size: 12px;
    font-family: var(--font-sans);
    color: var(--nero);
    background: var(--bianco);
    width: 100%;
    outline: none;
    transition: border-color 0.1s;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--nero);
}

/* Upload area XML */
.upload-area {
    border: 2px dashed var(--grigio-300);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--nero);
    background: var(--grigio-50);
}

.upload-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.upload-text {
    font-size: 13px;
    color: var(--grigio-600);
}

.upload-sub {
    font-size: 11px;
    color: var(--grigio-400);
    margin-top: 6px;
}

/* ============================================
   BOTTONI
   ============================================ */

.btn {
    display: inline-block;
    padding: 8px 18px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    border: 2px solid;
    text-decoration: none;
    transition: 0.1s;
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--nero);
    border-color: var(--nero);
    color: var(--bianco);
}

.btn-primary:hover {
    background: var(--grigio-700);
    border-color: var(--grigio-700);
}

.btn-secondary {
    background: var(--bianco);
    border-color: var(--grigio-300);
    color: var(--grigio-700);
}

.btn-secondary:hover {
    border-color: var(--nero);
    color: var(--nero);
}

.btn-danger {
    background: var(--bianco);
    border-color: #cc0000;
    color: #cc0000;
    font-size: 11px;
    padding: 5px 12px;
}

.btn-danger:hover {
    background: #cc0000;
    color: var(--bianco);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 11px;
}

/* ============================================
   FILTRI BARRA
   ============================================ */

.filtri-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 16px;
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filtri-bar select,
.filtri-bar input[type="text"] {
    width: auto;
    min-width: 140px;
}

/* ============================================
   SEZIONE IVA TRIMESTRALE
   ============================================ */

.trimestri-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.trim-card {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    padding: 20px;
}

.trim-header {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--grigio-600);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--grigio-200);
}

.trim-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    font-size: 12px;
    border-bottom: 1px solid var(--grigio-100);
}

.trim-row:last-child { border-bottom: none; }

.trim-label { color: var(--grigio-600); }
.trim-val   { font-family: var(--font-mono); font-weight: 600; }

.trim-total {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 2px solid var(--nero);
    display: flex;
    justify-content: space-between;
    font-weight: 700;
    font-size: 14px;
}

.trim-total .trim-val { font-size: 16px; }
.dovuta  { color: #cc0000; }
.credito { color: #006600; }

.trim-versata {
    margin-top: 10px;
    font-size: 10px;
    padding: 4px 10px;
    background: var(--grigio-100);
    display: inline-block;
}

/* ============================================
   CONTO ECONOMICO
   ============================================ */

.ce-section {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    margin-bottom: 20px;
}

.ce-header {
    background: var(--grigio-800);
    color: var(--bianco);
    padding: 12px 18px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.ce-body { padding: 0; }

.ce-row {
    display: flex;
    justify-content: space-between;
    padding: 9px 18px;
    border-bottom: 1px solid var(--grigio-100);
    font-size: 12px;
}

.ce-row:last-child { border-bottom: none; }
.ce-row.total {
    background: var(--grigio-50);
    font-weight: 700;
    border-top: 2px solid var(--nero);
    font-size: 14px;
}

.ce-label { color: var(--grigio-600); }
.ce-val   { font-family: var(--font-mono); }

/* ============================================
   ARCHIVIO DOCUMENTI
   ============================================ */

.doc-categoria {
    margin-bottom: 24px;
}

.doc-cat-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--grigio-600);
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--grigio-200);
}

.doc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.doc-item {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.doc-item:hover { border-color: var(--grigio-400); }

.doc-icon { font-size: 16px; }

.doc-name {
    flex: 1;
    font-size: 12px;
    font-weight: 500;
}

.doc-meta {
    font-size: 10px;
    color: var(--grigio-400);
    white-space: nowrap;
}

.doc-actions {
    display: flex;
    gap: 6px;
}

/* ============================================
   LIBRO GIORNALE
   ============================================ */

.registro-num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--grigio-400);
}

/* ============================================
   DATI REDDITI / ISA
   ============================================ */

.redditi-box {
    background: var(--bianco);
    border: 2px solid var(--nero);
    padding: 24px;
    margin-bottom: 20px;
}

.redditi-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--grigio-200);
    text-transform: uppercase;
}

.redditi-avviso {
    background: var(--grigio-100);
    border-left: 3px solid var(--nero);
    padding: 14px 18px;
    font-size: 12px;
    margin-bottom: 20px;
    color: var(--grigio-700);
    line-height: 1.6;
}

.redditi-field {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px solid var(--grigio-100);
    gap: 20px;
}

.redditi-field:last-child { border-bottom: none; }

.redditi-field-label {
    font-size: 11px;
    color: var(--grigio-600);
    flex: 1;
}

.redditi-field-codice {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--grigio-400);
    background: var(--grigio-100);
    padding: 2px 6px;
    min-width: 50px;
    text-align: center;
}

.redditi-field-val {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    color: var(--nero);
    min-width: 160px;
    text-align: right;
}

/* ============================================
   PAGINAZIONE
   ============================================ */

.pagination-wrap {
    margin-top: 16px;
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.pagination-wrap .page-link {
    border: 1px solid var(--grigio-200);
    padding: 5px 11px;
    font-size: 12px;
    color: var(--grigio-700);
    text-decoration: none;
    background: var(--bianco);
}

.pagination-wrap .page-link:hover,
.pagination-wrap .page-link.active {
    background: var(--nero);
    color: var(--bianco);
    border-color: var(--nero);
}

/* ============================================
   LOGIN
   ============================================ */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--grigio-100);
}

.login-box {
    background: var(--bianco);
    border: 2px solid var(--nero);
    padding: 40px;
    width: 340px;
}

.login-logo {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo .logo-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.login-logo .logo-sub {
    font-size: 11px;
    color: var(--grigio-500);
    margin-top: 3px;
    letter-spacing: 0.06em;
}

/* ============================================
   RISULTATI IMPORT
   ============================================ */

.import-risultati {
    background: var(--bianco);
    border: 1px solid var(--grigio-200);
    padding: 20px;
    margin-top: 20px;
}

.import-stat {
    display: inline-block;
    margin-right: 20px;
    font-size: 13px;
    font-weight: 700;
}

.import-stat span {
    font-family: var(--font-mono);
    font-size: 20px;
}

.import-ok      { color: #006600; }
.import-dup     { color: var(--grigio-500); }
.import-err     { color: #cc0000; }

/* ============================================
   UTILITY
   ============================================ */

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.text-right  { text-align: right; }
.text-center { text-align: center; }
.text-mono   { font-family: var(--font-mono); }
.text-small  { font-size: 11px; color: var(--grigio-500); }

.flex        { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8       { gap: 8px; }
.gap-12      { gap: 12px; }

.importo-positivo { color: #006600; font-family: var(--font-mono); }
.importo-negativo { color: #cc0000; font-family: var(--font-mono); }
.importo-neutro   { font-family: var(--font-mono); }

/* ============================================
   RESPONSIVE MOBILE
   ============================================ */

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0; left: 0;
        height: 100%;
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0,0,0,0.3);
    }

    .sidebar-toggle { display: block; }

    .page-content { padding: 14px; }

    .anni-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }

    .stats-grid { grid-template-columns: 1fr 1fr; }

    .trimestri-grid { grid-template-columns: 1fr; }

    .form-row { flex-direction: column; }

    .redditi-field { flex-direction: column; gap: 4px; }

    .redditi-field-val { text-align: left; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}