:root {
    --primary-50: #ecfdf7;
    --primary-100: #d1faec;
    --primary-500: #0f9f83;
    --primary-600: #0b806b;
    --primary-700: #086655;
    --accent-500: #2563eb;
    --info-50: #eff6ff;
    --info-600: #2563eb;
    --success-50: #ecfdf3;
    --success-600: #168252;
    --warning-50: #fffbeb;
    --warning-600: #b7791f;
    --danger-50: #fef2f2;
    --danger-600: #c0342b;
    --neutral-0: #ffffff;
    --neutral-50: #f7f9fc;
    --neutral-100: #eef2f7;
    --neutral-200: #d9e2ec;
    --neutral-300: #c5d1df;
    --neutral-500: #64748b;
    --neutral-700: #334155;
    --neutral-800: #1f2937;
    --neutral-900: #111827;
    --background: #f5f7fb;
    --surface: #ffffff;
    --surface-muted: #f8fafc;
    --text-primary: #172033;
    --text-secondary: #667085;
    --text-muted: #8a98aa;
    --border: #dce4ee;
    --border-strong: #c6d2df;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 12px 28px rgba(16, 24, 40, 0.08);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --sidebar-width: 282px;
    --topbar-height: 74px;
    --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    color: inherit;
}

button,
input,
select,
textarea {
    font: inherit;
}

button,
a,
input,
select,
textarea {
    transition: background-color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, color 0.16s ease;
}

button {
    cursor: pointer;
}

.icon {
    height: 18px;
    stroke-width: 2;
    width: 18px;
}

.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    background: #101828;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    color: #e4eaf2;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    min-height: 100vh;
    padding: var(--space-5);
    position: sticky;
    top: 0;
}

.brand {
    align-items: center;
    display: flex;
    gap: var(--space-3);
    min-height: 46px;
}

.brand-mark {
    align-items: center;
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    border-radius: var(--radius-lg);
    color: #fff;
    display: inline-flex;
    height: 42px;
    justify-content: center;
    width: 42px;
}

.brand strong,
.brand span {
    display: block;
}

.brand strong {
    font-size: 16px;
    letter-spacing: 0;
}

.brand span {
    color: #aebacc;
    font-size: 12px;
    margin-top: 1px;
}

.nav {
    display: grid;
    gap: var(--space-6);
}

.nav-section {
    display: grid;
    gap: var(--space-2);
}

.nav-title {
    color: #7d8da3;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0 var(--space-3);
    text-transform: uppercase;
}

.nav a {
    align-items: center;
    border-radius: var(--radius-md);
    color: #d9e2ee;
    display: flex;
    gap: var(--space-3);
    min-height: 42px;
    padding: 10px 12px;
    text-decoration: none;
}

.nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.nav a.active {
    background: rgba(15, 159, 131, 0.16);
    box-shadow: inset 3px 0 0 var(--primary-500);
    color: #fff;
}

.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: auto;
    padding-top: var(--space-4);
}

.account-mini {
    align-items: center;
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.avatar {
    align-items: center;
    background: var(--primary-100);
    border-radius: 999px;
    color: var(--primary-700);
    display: inline-flex;
    flex: 0 0 auto;
    font-size: 13px;
    font-weight: 700;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.account-mini strong,
.account-mini span {
    display: block;
}

.account-mini strong {
    color: #fff;
    font-size: 13px;
}

.account-mini span {
    color: #aebacc;
    font-size: 12px;
}

.logout-form {
    margin: 0;
}

.main {
    min-width: 0;
}

.topbar {
    align-items: center;
    background: rgba(245, 247, 251, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: var(--space-5);
    justify-content: space-between;
    min-height: var(--topbar-height);
    padding: 0 var(--space-8);
    position: sticky;
    top: 0;
    z-index: 10;
}

.mobile-nav-toggle {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    display: none;
    height: 40px;
    justify-content: center;
    width: 40px;
}

.breadcrumb {
    align-items: center;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    gap: var(--space-2);
    margin-bottom: 2px;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

.breadcrumb span:last-child {
    color: var(--text-primary);
}

.topbar h1,
.page-title {
    font-size: 26px;
    font-weight: 750;
    letter-spacing: 0;
    line-height: 1.2;
    margin: 0;
}

.page-subtitle {
    color: var(--text-secondary);
    margin: var(--space-2) 0 0;
    max-width: 760px;
}

.topbar-actions {
    align-items: center;
    display: flex;
    gap: var(--space-3);
}

.user-chip {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--space-2);
    padding: 7px 12px 7px 7px;
    white-space: nowrap;
}

.content {
    margin: 0 auto;
    max-width: 1480px;
    min-width: 0;
    padding: var(--space-8);
}

.page-header {
    align-items: flex-start;
    display: flex;
    gap: var(--space-5);
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.page-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: flex-end;
}

.card,
.panel,
.stat-card,
.login-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    min-width: 0;
}

.card,
.panel {
    padding: var(--space-6);
}

.card + .card,
.panel + .panel {
    margin-top: var(--space-5);
}

.card-header {
    align-items: flex-start;
    display: flex;
    gap: var(--space-4);
    justify-content: space-between;
    margin-bottom: var(--space-5);
}

.card-title {
    font-size: 17px;
    font-weight: 750;
    margin: 0;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 13px;
    margin: 4px 0 0;
}

.btn,
button {
    align-items: center;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    display: inline-flex;
    font-weight: 700;
    gap: var(--space-2);
    justify-content: center;
    min-height: 40px;
    padding: 9px 14px;
    text-decoration: none;
}

.btn-primary,
button {
    background: var(--primary-600);
    color: #fff;
}

.btn-primary:hover,
button:hover {
    background: var(--primary-700);
}

.btn-secondary {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--neutral-50);
    border-color: var(--border-strong);
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--neutral-100);
    color: var(--text-primary);
}

.btn-block {
    width: 100%;
}

.toolbar {
    align-items: center;
    display: flex;
    gap: var(--space-4);
    justify-content: space-between;
    margin-bottom: var(--space-5);
}

.filters,
.tabs {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: inline-flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    padding: 4px;
}

.filters a,
.tabs a {
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 700;
    padding: 8px 12px;
    text-decoration: none;
}

.filters a:hover,
.tabs a:hover {
    color: var(--text-primary);
}

.filters a.active,
.tabs a.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

.badge {
    align-items: center;
    background: var(--neutral-100);
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--neutral-700);
    display: inline-flex;
    font-size: 12px;
    font-weight: 750;
    gap: 6px;
    line-height: 1;
    min-height: 24px;
    padding: 5px 9px;
    white-space: nowrap;
}

.badge-prospect,
.badge-sent,
.badge-draft,
.badge-scheduled,
.badge-open,
.badge-info {
    background: var(--info-50);
    color: var(--info-600);
}

.badge-client,
.badge-accepted,
.badge-active,
.badge-completed,
.badge-connected,
.badge-synced,
.badge-normal,
.badge-success {
    background: var(--success-50);
    color: var(--success-600);
}

.badge-rejected,
.badge-disabled,
.badge-cancelled,
.badge-disconnected,
.badge-error,
.badge-expired,
.badge-urgent,
.badge-danger {
    background: var(--danger-50);
    color: var(--danger-600);
}

.badge-in_progress,
.badge-waiting_customer,
.badge-to_activate,
.badge-pending,
.badge-suspended,
.badge-high,
.badge-warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.alert {
    align-items: flex-start;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    padding: var(--space-4);
}

.alert.error {
    background: var(--danger-50);
    border-color: #fecdca;
    color: var(--danger-600);
}

.alert.success {
    background: var(--success-50);
    border-color: #b7efc9;
    color: var(--success-600);
}

.alert.info {
    background: var(--info-50);
    border-color: #bfdbfe;
    color: var(--info-600);
}

.alert.warning {
    background: var(--warning-50);
    border-color: #fedf89;
    color: var(--warning-600);
}

.help-text {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.4;
}

.inline-form {
    display: inline-flex;
    margin-top: var(--space-2);
}

.btn-sm {
    min-height: 30px;
    padding: 6px 10px;
}

.form-stack,
.form-section {
    display: grid;
    gap: var(--space-5);
}

.form-section + .form-section {
    margin-top: var(--space-6);
}

.form-section-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--space-4);
}

.form-section-header h2 {
    font-size: 17px;
    margin: 0;
}

.form-section-header p {
    color: var(--text-secondary);
    margin: 4px 0 0;
}

.form-grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
    display: grid;
    gap: var(--space-2);
}

.field label,
.form-stack label,
.form-grid label {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 750;
}

.field-help {
    color: var(--text-muted);
    font-size: 12px;
    margin: 0;
}

input,
select,
textarea {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    min-height: 42px;
    outline: 0;
    padding: 10px 12px;
    width: 100%;
}

textarea {
    min-height: 124px;
    resize: vertical;
}

select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
    background-position: calc(100% - 17px) 18px, calc(100% - 12px) 18px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 34px;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(15, 159, 131, 0.14);
}

.span-2,
.span-full {
    grid-column: 1 / -1;
}

.form-actions {
    align-items: center;
    border-top: 1px solid var(--border);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    margin-top: var(--space-6);
    padding-top: var(--space-5);
}

.table-wrap {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
}

.table-scroll {
    overflow-x: auto;
}

.table {
    border-collapse: separate;
    border-spacing: 0;
    min-width: 760px;
    width: 100%;
}

.table th,
.table td {
    border-bottom: 1px solid var(--border);
    padding: 14px 16px;
    text-align: left;
    vertical-align: middle;
}

.table th {
    background: var(--surface-muted);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.table tr:last-child td {
    border-bottom: 0;
}

.table tbody tr:hover td {
    background: #fbfdff;
}

.table a {
    color: var(--primary-700);
    font-weight: 750;
    text-decoration: none;
}

.empty-state,
.empty {
    color: var(--text-secondary);
}

.empty-state {
    align-items: center;
    display: grid;
    gap: var(--space-3);
    justify-items: center;
    padding: var(--space-10) var(--space-6);
    text-align: center;
}

.empty-state .icon {
    background: var(--neutral-100);
    border-radius: var(--radius-lg);
    color: var(--text-muted);
    height: 44px;
    padding: 11px;
    width: 44px;
}

.empty-state h3 {
    color: var(--text-primary);
    font-size: 17px;
    margin: 0;
}

.empty-state p {
    margin: 0;
    max-width: 420px;
}

.stats-grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin-bottom: var(--space-6);
}

.stat-card {
    display: grid;
    gap: var(--space-3);
    min-height: 132px;
    padding: var(--space-5);
}

.stat-icon {
    align-items: center;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    color: var(--primary-700);
    display: inline-flex;
    height: 38px;
    justify-content: center;
    width: 38px;
}

.stat-card span {
    color: var(--text-secondary);
    display: block;
    font-size: 13px;
    font-weight: 700;
}

.stat-card strong {
    font-size: 30px;
    line-height: 1;
}

.dashboard-grid,
.client-summary {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: var(--space-5);
}

.two-column {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
}

details.card {
    padding: 0;
}

details.card > summary {
    cursor: pointer;
    list-style: none;
    padding: var(--space-6);
}

details.card > summary::-webkit-details-marker {
    display: none;
}

details.card > summary::after {
    color: var(--text-muted);
    content: "Apri";
    float: right;
    font-size: 13px;
    font-weight: 750;
    margin-top: -28px;
}

details.card[open] > summary::after {
    content: "Chiudi";
}

details.card > .form-grid {
    padding: 0 var(--space-6) var(--space-6);
}

.dashboard-grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.client-hero {
    align-items: flex-start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--space-5);
    justify-content: space-between;
    margin-bottom: var(--space-6);
    padding: var(--space-6);
}

.client-hero h2 {
    font-size: 26px;
    margin: 0 0 var(--space-2);
}

.client-hero-meta {
    align-items: center;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.details {
    display: grid;
    gap: var(--space-3) var(--space-5);
    grid-template-columns: 170px minmax(0, 1fr);
    margin: 0;
}

.details dt {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
}

.details dd {
    margin: 0;
    min-width: 0;
}

.pre-line {
    color: var(--text-secondary);
    margin: 0;
    white-space: pre-line;
}

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    max-width: 560px;
    padding: var(--space-6);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: none;
    min-width: 190px;
    padding: var(--space-2);
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    z-index: 30;
}

.dropdown.open .dropdown-menu {
    display: grid;
}

.login-page {
    background:
        radial-gradient(circle at top left, rgba(15, 159, 131, 0.16), transparent 32%),
        linear-gradient(135deg, #f8fbff 0%, #eef4f8 100%);
    min-height: 100vh;
}

.guest-shell {
    align-items: center;
    display: grid;
    min-height: 100vh;
    padding: var(--space-6);
}

.login-panel {
    margin: 0 auto;
    max-width: 440px;
    padding: var(--space-8);
    width: 100%;
}

.login-logo {
    align-items: center;
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.login-logo .brand-mark {
    height: 48px;
    width: 48px;
}

.login-panel h1 {
    font-size: 28px;
    margin: 0;
}

.login-panel p {
    color: var(--text-secondary);
    margin: var(--space-2) 0 var(--space-6);
}

@media (max-width: 1180px) {
    .stats-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        bottom: 0;
        left: 0;
        max-width: 320px;
        position: fixed;
        top: 0;
        transform: translateX(-105%);
        transition: transform 0.2s ease;
        width: 86vw;
        z-index: 50;
    }

    body.nav-open .sidebar {
        transform: translateX(0);
    }

    .mobile-nav-toggle {
        display: inline-flex;
    }

    .topbar {
        padding: 0 var(--space-5);
    }

    .content {
        padding: var(--space-5);
    }

    .dashboard-grid,
    .dashboard-grid.three,
    .client-summary,
    .two-column {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--space-3);
        padding-bottom: var(--space-4);
        padding-top: var(--space-4);
    }

    .topbar-actions {
        justify-content: space-between;
        min-width: 0;
        width: 100%;
    }

    .user-chip {
        max-width: 100%;
        min-width: 0;
    }

    .page-header,
    .client-hero,
    .toolbar {
        flex-direction: column;
    }

    .page-actions,
    .toolbar,
    .toolbar > * {
        align-items: stretch;
        width: 100%;
    }

    .filters {
        width: 100%;
    }

    .filters a {
        flex: 1 1 auto;
        text-align: center;
    }

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

    .form-actions {
        align-items: stretch;
        flex-direction: column-reverse;
    }

    .form-actions .btn,
    .form-actions button {
        width: 100%;
    }

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