/* =============================================================================
   Cool Box System Remote - Design system (Proposta B - Clean SaaS)
   ========================================================================== */

/* ----------------------------------------------------------------------------
   Reset & box-sizing
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }
a { color: inherit; }
img { max-width: 100%; display: block; }

/* ----------------------------------------------------------------------------
   Design tokens
   ------------------------------------------------------------------------- */
:root {
    /* Backgrounds */
    --bg-app:        #F5F7FA;
    --bg-card:       #FFFFFF;
    --bg-subtle:     #F9FAFB;
    --bg-overlay:    rgba(15, 23, 42, 0.4);

    /* Text */
    --text-primary:   #111827;
    --text-secondary: #6B7280;
    --text-tertiary:  #9CA3AF;
    --text-inverse:   #FFFFFF;

    /* Borders */
    --border:        #E5E7EB;
    --border-strong: #D1D5DB;

    /* Brand */
    --primary:        #185FA5;
    --primary-hover:  #134A82;
    --primary-active: #042C53;
    --primary-soft:   #E6F1FB;

    /* Status */
    --success:        #2C7A3F;
    --success-bg:     #E1F5EE;
    --success-strong: #0F6E56;

    --warning:        #BA7517;
    --warning-bg:     #FAEEDA;
    --warning-text:   #633806;

    --danger:         #C0392B;
    --danger-bg:      #FDECEC;
    --danger-strong:  #8B1F1F;

    --info:           #185FA5;
    --info-bg:        #E6F1FB;

    /* Radii */
    --radius-sm: 6px;
    --radius:    10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Shadows (sottili, niente glow) */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow:    0 2px 6px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

    /* Spacing */
    --tap-target: 44px;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-app);
    -webkit-font-smoothing: antialiased;
}

/* ----------------------------------------------------------------------------
   Layout helpers
   ------------------------------------------------------------------------- */
.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px;
    width: 100%;
}

/* Variante stretta per pagine form (login, profilo) */
.container--narrow {
    max-width: 440px;
}

/* Variante intermedia per form lunghe (modifica tenant/utente) */
.container--medium {
    max-width: 720px;
}

@media (min-width: 768px) {
    .container { padding: 24px; }
}

/* ----------------------------------------------------------------------------
   Hamburger / Drawer di navigazione
   ------------------------------------------------------------------------- */
.nav-toggle {
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    flex-shrink: 0;
}
.nav-toggle:hover { background: var(--bg-subtle); }

.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 99;
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }

.drawer {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 86%;
    max-width: 320px;
    background: var(--bg-card);
    box-shadow: 2px 0 16px rgba(15, 23, 42, 0.15);
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    z-index: 100;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.drawer.is-open { transform: translateX(0); }

.drawer__header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.drawer__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    flex-shrink: 0;
    text-transform: uppercase;
}

.drawer__user {
    flex: 1;
    min-width: 0;
    line-height: 1.3;
}
.drawer__user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.drawer__user-role {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 1px;
}

.drawer__close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.drawer__close:hover { background: var(--bg-subtle); }

.drawer__nav {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
}

.drawer__section-title {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 12px 6px;
}

.drawer__link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.3;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
}
.drawer__link:hover { background: var(--bg-subtle); }
.drawer__link svg { flex-shrink: 0; color: var(--text-secondary); }

.drawer__link--active {
    background: var(--primary-soft);
    color: var(--primary-active);
}
.drawer__link--active svg { color: var(--primary); }

.drawer__link--logout { color: var(--danger); }
.drawer__link--logout svg { color: var(--danger); }
.drawer__link--logout:hover { background: var(--danger-bg); }

.drawer__divider {
    height: 1px;
    background: var(--border);
    margin: 6px 8px;
}

/* Sezione "area super admin" visualmente separata dalla nav cliente */
.drawer__admin-block {
    margin: 12px 8px 4px;
    padding: 4px;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    border-radius: var(--radius);
    color: #cbd5e1;
}

.drawer__admin-block .drawer__section-title {
    color: rgba(255,255,255,0.55);
    padding: 8px 10px 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
}

.drawer__admin-block .drawer__link {
    color: #e2e8f0;
    border-radius: 6px;
    padding: 9px 12px;
    margin: 1px 0;
    transition: background 0.15s;
}
.drawer__admin-block .drawer__link svg { color: #94a3b8; }
.drawer__admin-block .drawer__link:hover {
    background: rgba(255,255,255,0.07);
}
.drawer__admin-block .drawer__link:hover svg { color: white; }

.drawer__admin-block .drawer__link--active {
    background: var(--primary);
    color: white;
}
.drawer__admin-block .drawer__link--active svg { color: white; }

.drawer__footer {
    border-top: 1px solid var(--border);
    padding: 12px 16px;
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
}

/* Desktop: sidebar permanente sempre visibile */
@media (min-width: 1024px) {
    /* La sidebar e' sempre aperta, niente animazione */
    .drawer {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 260px;
        max-width: 260px;
        transform: translateX(0);
        transition: none;
        box-shadow: none;
        border-right: 1px solid var(--border);
        z-index: 50;
    }

    /* Niente backdrop, niente bottone X, niente hamburger */
    .drawer-backdrop,
    .drawer__close,
    .nav-toggle {
        display: none !important;
    }

    /* Tutto il contenuto del body si sposta a destra della sidebar.
       Applico solo quando il drawer e' effettivamente presente nel DOM
       (cioe' utente loggato): la classe la aggiunge app.js. */
    body.has-sidebar {
        padding-left: 260px;
    }

    /* Topbar sticky deve restare sopra al contenuto ma sotto la sidebar */
    body.has-sidebar .topbar {
        z-index: 49;
    }

    /* Topbar pulita: il logo viene gia' dalla sidebar, semplifico */
    body.has-sidebar .topbar__brand .topbar__logo--image { display: none; }
}

/* ----------------------------------------------------------------------------
   Top bar (riusabile nelle pagine interne)
   ------------------------------------------------------------------------- */
.topbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}

.topbar__logo {
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.topbar__logo img { width: 24px; height: 24px; }
.topbar__logo svg { width: 22px; height: 22px; color: white; }

/* Variante per logo immagine: niente sfondo blu, ratio nativo */
.topbar__logo--image {
    width: auto;
    height: auto;
    background: transparent;
    border-radius: 0;
    padding: 0;
}

.topbar__logo--image img {
    width: auto !important;
    height: 28px !important;
}

.topbar__title {
    line-height: 1.2;
    min-width: 0;
}

.topbar__title-sub {
    font-size: 11px;
    color: var(--text-secondary);
}

.topbar__title-main {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.topbar__user {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    flex-shrink: 0;
}

.topbar__user:hover {
    background: var(--bg-subtle);
    color: var(--text-primary);
}

/* ----------------------------------------------------------------------------
   Card
   ------------------------------------------------------------------------- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.card--padded { padding: 20px; }

.card__title {
    font-size: 17px;
    font-weight: 500;
    margin: 0 0 4px;
}

.card__subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 16px;
}

/* ----------------------------------------------------------------------------
   Form
   ------------------------------------------------------------------------- */
.form-group {
    margin-bottom: 14px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    height: var(--tap-target);
    padding: 0 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(24, 95, 165, 0.15);
}

.form-control:disabled {
    background: var(--bg-subtle);
    color: var(--text-tertiary);
    cursor: not-allowed;
}

.form-control--has-icon {
    padding-left: 42px;
}

.form-control-wrap {
    position: relative;
}

.form-control-wrap__icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
    width: 18px;
    height: 18px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* ----------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--tap-target);
    padding: 0 18px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.btn:hover { background: var(--bg-subtle); }

.btn--primary {
    background: var(--primary);
    color: var(--text-inverse);
    border-color: var(--primary);
}
.btn--primary:hover  { background: var(--primary-hover);  border-color: var(--primary-hover); }
.btn--primary:active { background: var(--primary-active); border-color: var(--primary-active); }

.btn--ghost {
    background: transparent;
    border-color: transparent;
    color: var(--primary);
}
.btn--ghost:hover { background: var(--primary-soft); }

.btn--danger {
    background: var(--danger);
    color: var(--text-inverse);
    border-color: var(--danger);
}
.btn--danger:hover { background: var(--danger-strong); border-color: var(--danger-strong); }

.btn--block { width: 100%; }

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.6;
    pointer-events: none;
}

.btn__spinner {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

.btn.is-loading .btn__spinner { display: inline-block; }
.btn.is-loading .btn__label   { opacity: 0.7; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ----------------------------------------------------------------------------
   Alerts
   ------------------------------------------------------------------------- */
.alert {
    border-radius: var(--radius);
    padding: 12px 14px;
    font-size: 13px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 14px;
}

.alert__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 1px;
}

.alert--danger  { background: var(--danger-bg);  color: var(--danger-strong); }
.alert--warning { background: var(--warning-bg); color: var(--warning-text); }
.alert--success { background: var(--success-bg); color: var(--success-strong); }
.alert--info    { background: var(--info-bg);    color: var(--primary-active); }

/* ----------------------------------------------------------------------------
   Badge
   ------------------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
}

.badge__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.badge--success { background: var(--success-bg); color: var(--success-strong); }
.badge--warning { background: var(--warning-bg); color: var(--warning-text); }
.badge--danger  { background: var(--danger-bg);  color: var(--danger-strong); }
.badge--info    { background: var(--info-bg);    color: var(--primary-active); }
.badge--neutral { background: var(--bg-subtle);  color: var(--text-secondary); }

/* ----------------------------------------------------------------------------
   List (riusabile per tenant picker, gruppi)
   ------------------------------------------------------------------------- */
.list { display: grid; grid-template-columns: 1fr; gap: 10px; }

@media (min-width: 720px) {
    .list { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
    .list { grid-template-columns: repeat(3, 1fr); }
}

.list-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    text-align: left;
    width: 100%;
    font: inherit;
}

.list-item:hover { border-color: var(--border); }
.list-item:focus-visible {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(24, 95, 165, 0.15);
}

.list-item__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.list-item__icon svg { width: 22px; height: 22px; }

.list-item__body { flex: 1; min-width: 0; }

.list-item__title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item__meta {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.list-item__chevron {
    color: var(--text-tertiary);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ----------------------------------------------------------------------------
   Utility
   ------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.text-tertiary  { color: var(--text-tertiary); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.font-medium { font-weight: 500; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 14px; }
.mt-4 { margin-top: 20px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 14px; }
.mb-4 { margin-bottom: 20px; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ----------------------------------------------------------------------------
   Impersonate banner (super admin che visita un tenant)
   ------------------------------------------------------------------------- */
.imp-banner {
    background: var(--primary);
    color: white;
    padding: 8px 16px;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.imp-banner__text {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.imp-banner__text svg { flex-shrink: 0; }

.imp-banner__text strong { font-weight: 500; }

.imp-banner__exit {
    color: white;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    white-space: nowrap;
    padding: 2px 8px;
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 6px;
    background: rgba(255,255,255,0.1);
    flex-shrink: 0;
}

.imp-banner__exit:hover {
    background: rgba(255,255,255,0.2);
}

/* ----------------------------------------------------------------------------
   Lista tenant area admin (una riga per impianto, codice ben evidenziato)
   ------------------------------------------------------------------------- */
.tenant-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tenant-row {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--border-strong);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.tenant-row--ok      { border-left-color: var(--success); }
.tenant-row--warning { border-left-color: var(--warning); }
.tenant-row--danger  { border-left-color: var(--danger); }
.tenant-row--neutral { border-left-color: var(--border-strong); }

/* Badge col codice dell'installazione: grande, monospace */
.tenant-row__code {
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 6px 14px;
    border-radius: var(--radius);
    letter-spacing: 0.5px;
    flex-shrink: 0;
    line-height: 1.1;
    text-align: center;
    min-width: 80px;
}

@media (min-width: 768px) {
    .tenant-row__code { font-size: 26px; min-width: 100px; }
}

.tenant-row__main {
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tenant-row__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    background: var(--bg-subtle);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tenant-row__name {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.2;
}

.tenant-row__meta {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.tenant-row__metrics {
    display: flex;
    gap: 18px;
    align-items: center;
}

.tenant-row__metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
}

.tenant-row__metric-value {
    font-size: 20px;
    font-weight: 500;
    line-height: 1.1;
}

.tenant-row__metric-value--success { color: var(--success-strong); }
.tenant-row__metric-value--warning { color: var(--warning-text); }
.tenant-row__metric-value--danger  { color: var(--danger); }

.tenant-row__metric-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.tenant-row__status {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tenant-row__status--success { background: var(--success-bg); color: var(--success-strong); }
.tenant-row__status--warning { background: var(--warning-bg); color: var(--warning-text); }
.tenant-row__status--danger  { background: var(--danger-bg);  color: var(--danger-strong); }
.tenant-row__status--neutral { background: var(--bg-subtle);  color: var(--text-secondary); }

.tenant-row__actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

@media (max-width: 720px) {
    .tenant-row { flex-direction: column; align-items: stretch; }
    .tenant-row__main { width: 100%; }
    .tenant-row__metrics { justify-content: space-around; width: 100%; }
    .tenant-row__actions { justify-content: stretch; width: 100%; }
    .tenant-row__actions form,
    .tenant-row__actions a,
    .tenant-row__actions button { flex: 1; }
}