/* ==========================================================================
   TradeERP — Application stylesheet
   Premium, clean, ERPNext-inspired. No charts, no animation noise.
   ========================================================================== */

:root {
    --erp-sidebar-bg: #0f172a;
    --erp-sidebar-hover: #1e293b;
    --erp-sidebar-text: #94a3b8;
    --erp-sidebar-active: #ffffff;
    --erp-primary: #2563eb;
    --erp-primary-dark: #1d4ed8;
    --erp-bg: #f4f6f9;
    --erp-border: #e5e7eb;
    --erp-text: #1f2937;
    --erp-muted: #6b7280;
    --erp-card: #ffffff;
    --erp-success: #059669;
    --erp-danger: #dc2626;
    --erp-warning: #d97706;
    --erp-radius: 8px;
    --erp-shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
}

html, body {
    height: 100%;
}

body {
    font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--erp-bg);
    color: var(--erp-text);
    font-size: .9rem;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--erp-primary); text-decoration: none; }
a:hover { color: var(--erp-primary-dark); }

/* ---------- Layout shell ---------- */
.erp-shell { display: flex; min-height: 100vh; }

.erp-sidebar {
    width: 250px;
    background: var(--erp-sidebar-bg);
    color: var(--erp-sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1040;
    transition: transform .18s ease;
}

.erp-main {
    flex: 1;
    margin-left: 250px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.erp-content { padding: 1.25rem 1.5rem 3rem; flex: 1; }

/* ---------- Sidebar ---------- */
.erp-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: 1rem 1.1rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: .2px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.erp-brand .brand-mark {
    width: 34px; height: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--erp-primary), #4f46e5);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.05rem;
}
.erp-brand small {
    display: block; font-size: .62rem; font-weight: 500; color: var(--erp-sidebar-text);
    letter-spacing: .4px; text-transform: uppercase;
}

.erp-nav { flex: 1; overflow-y: auto; padding: .6rem 0 1rem; }
.erp-nav::-webkit-scrollbar { width: 4px; }
.erp-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 4px; }

.erp-nav-label {
    padding: 0;
    font-size: .62rem;
    font-weight: 700;
    letter-spacing: 1.1px;
    text-transform: uppercase;
    color: #64748b;
    pointer-events: none;
}

/* ---- Collapsible nav groups (expand/collapse tree) ---- */
.erp-nav-group { margin-bottom: .15rem; }

.erp-nav-group-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: .65rem 1.1rem .3rem;
    background: none;
    border: 0;
    cursor: pointer;
    color: inherit;
    border-radius: 6px;
    transition: background .12s;
}
.erp-nav-group-toggle:hover { background: var(--erp-sidebar-hover); }
.erp-nav-group-toggle:hover .erp-nav-label { color: #94a3b8; }

.erp-nav-chevron {
    width: 14px;
    height: 14px;
    color: #94a3b8;
    transition: transform .18s ease;
}
.erp-nav-group-toggle:hover .erp-nav-chevron { color: #cbd5e1; }
.erp-nav-group[data-expanded="0"] .erp-nav-chevron { transform: rotate(-90deg); }
.erp-nav-group[data-expanded="0"] .erp-nav-group-items { display: none; }

.erp-nav-group-items .erp-nav-item { padding-top: .42rem; padding-bottom: .42rem; }

/* ---- Desktop collapsed sidebar (icon rail) ---- */
@media (min-width: 992px) {
    .erp-sidebar.collapsed { width: 64px; }
    .erp-main.collapsed { margin-left: 64px; }

    .erp-sidebar.collapsed .erp-brand { justify-content: center; padding: 1rem 0; }
    .erp-sidebar.collapsed .erp-brand > span:last-child { display: none; }

    .erp-sidebar.collapsed .erp-nav-group-toggle { justify-content: center; padding: .65rem 0 .3rem; }
    .erp-sidebar.collapsed .erp-nav-chevron { display: none; }
    .erp-sidebar.collapsed .erp-nav-label { display: none; }

    .erp-sidebar.collapsed .erp-nav-item { justify-content: center; padding: .6rem 0; }
    .erp-sidebar.collapsed .erp-nav-item span { display: none; }
    .erp-sidebar.collapsed .erp-nav-item .erp-svg-icon { width: 20px; height: 20px; }

    /* when collapsed, keep all groups open (icons only) */
    .erp-sidebar.collapsed .erp-nav-group[data-expanded="0"] .erp-nav-group-items { display: block; }

    .erp-sidebar.collapsed .erp-sidebar-footer span,
    .erp-sidebar.collapsed .erp-sidebar-footer .ver { display: none; }
    .erp-sidebar.collapsed .erp-sidebar-footer { text-align: center; padding: .8rem 0; }

    /* hover tooltip on the rail */
    .erp-sidebar.collapsed .erp-nav-item { position: relative; }
    .erp-sidebar.collapsed .erp-nav-item span {
        display: none;
        position: absolute;
        left: 56px;
        top: 50%;
        transform: translateY(-50%);
        background: var(--erp-sidebar-bg);
        color: #e2e8f0;
        padding: .35rem .7rem;
        border-radius: 6px;
        font-size: .76rem;
        white-space: nowrap;
        z-index: 1200;
        box-shadow: 0 4px 12px rgba(0,0,0,.35);
    }
    .erp-sidebar.collapsed .erp-nav-item:hover span { display: block; }
}

.erp-nav-item {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .5rem 1.1rem;
    color: var(--erp-sidebar-text);
    font-size: .86rem;
    border-left: 3px solid transparent;
    transition: background .12s, color .12s;
}
.erp-nav-item i { font-size: 1rem; width: 20px; text-align: center; }
.erp-nav-item .erp-svg-icon {
    width: 18px; height: 18px; flex-shrink: 0;
    opacity: .9;
}
.erp-nav-item.active .erp-svg-icon { opacity: 1; }
.erp-nav-group-toggle .erp-svg-icon { width: 14px; height: 14px; opacity: .7; }
.erp-brand .erp-svg-icon { width: 22px; height: 22px; }
.erp-nav-item:hover { background: var(--erp-sidebar-hover); color: #e2e8f0; }
.erp-nav-item.active {
    background: rgba(37, 99, 235, .18);
    border-left-color: var(--erp-primary);
    color: var(--erp-sidebar-active);
    font-weight: 600;
}

.erp-sidebar-footer {
    padding: .8rem 1.1rem;
    border-top: 1px solid rgba(255,255,255,.06);
    font-size: .7rem;
    color: #64748b;
}
.erp-sidebar-footer .ver { float: right; }

/* ---------- Topbar ---------- */
.erp-topbar {
    background: #fff;
    border-bottom: 1px solid var(--erp-border);
    height: 58px;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1020;
}
.erp-topbar .company-name { font-weight: 600; font-size: .95rem; }
.erp-topbar .branch-chip {
    font-size: .72rem; background: #eef2ff; color: #4338ca;
    padding: .2rem .6rem; border-radius: 20px; font-weight: 600;
}
.erp-topbar-right { margin-left: auto; display: flex; align-items: center; gap: .4rem; }

.erp-topbar-search {
    width: 260px;
}
.erp-topbar-search input {
    border-radius: 20px; background: #f1f5f9; border: 1px solid transparent;
    font-size: .8rem; padding: .3rem .9rem;
}
.erp-topbar-search input:focus { background: #fff; border-color: var(--erp-primary); box-shadow: none; }

.user-chip { display: flex; align-items: center; gap: .55rem; padding: .3rem .6rem; border-radius: 8px; }
.user-chip:hover { background: #f1f5f9; }
.user-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--erp-primary), #4f46e5);
    color: #fff; font-weight: 700; font-size: .8rem;
    display: flex; align-items: center; justify-content: center;
}
.user-chip .u-name { font-size: .82rem; font-weight: 600; line-height: 1.1; }
.user-chip .u-role { font-size: .68rem; color: var(--erp-muted); }

/* ---------- Buttons ---------- */
.btn { border-radius: 6px; font-size: .84rem; font-weight: 500; }
.btn-primary { background: var(--erp-primary); border-color: var(--erp-primary); }
.btn-primary:hover { background: var(--erp-primary-dark); border-color: var(--erp-primary-dark); }
.btn-outline-primary { color: var(--erp-primary); border-color: #bfdbfe; }
.btn-outline-primary:hover { background: var(--erp-primary); border-color: var(--erp-primary); }
.btn-sm { font-size: .78rem; }
.btn-icon { display: inline-flex; align-items: center; gap: .35rem; }
.btn:focus { box-shadow: 0 0 0 .2rem rgba(37,99,235,.15); }

/* ---------- Cards ---------- */
.erp-card {
    background: var(--erp-card);
    border: 1px solid var(--erp-border);
    border-radius: var(--erp-radius);
    box-shadow: var(--erp-shadow);
}
.erp-card-header {
    padding: .8rem 1rem;
    border-bottom: 1px solid var(--erp-border);
    display: flex;
    align-items: center;
    gap: .6rem;
}
.erp-card-header h6 { margin: 0; font-weight: 700; font-size: .86rem; }
.erp-card-body { padding: 1rem; }
.erp-card-footer { padding: .7rem 1rem; border-top: 1px solid var(--erp-border); }

/* ---------- Page header ---------- */
.erp-page-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.1rem; flex-wrap: wrap; }
.erp-page-head h1 { font-size: 1.25rem; font-weight: 700; margin: 0; }
.erp-page-head .actions { margin-left: auto; display: flex; gap: .45rem; flex-wrap: wrap; }
.breadcrumb { margin: .15rem 0 0; font-size: .76rem; --bs-breadcrumb-divider: "/"; }
.breadcrumb a { color: var(--erp-muted); }
.breadcrumb .active { color: var(--erp-text); font-weight: 600; }

/* ---------- Tables ---------- */
.erp-table { margin: 0; font-size: .83rem; }
.erp-table thead th {
    background: #f8fafc;
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: #64748b;
    font-weight: 700;
    padding: .55rem .8rem;
    border-bottom: 1px solid var(--erp-border);
    white-space: nowrap;
}
.erp-table tbody td {
    padding: .55rem .8rem;
    vertical-align: middle;
    border-color: #f1f5f9;
}
.erp-table tbody tr:hover { background: #f8fafc; }
.erp-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.erp-table .actions-cell { text-align: right; white-space: nowrap; }
.erp-table .actions-cell .btn { padding: .15rem .45rem; font-size: .75rem; }

.sortable { cursor: pointer; user-select: none; }
.sortable:hover { color: var(--erp-primary); }
.sortable i { font-size: .65rem; margin-left: 2px; }

/* ---------- Badges ---------- */
.badge { font-weight: 600; font-size: .68rem; padding: .32em .6em; border-radius: 20px; }
.badge-soft-success { background: #d1fae5; color: #065f46; }
.badge-soft-danger  { background: #fee2e2; color: #991b1b; }
.badge-soft-warning  { background: #fef3c7; color: #92400e; }
.badge-soft-info    { background: #dbeafe; color: #1e40af; }
.badge-soft-neutral { background: #f1f5f9; color: #475569; }

/* ---------- Stat cards (dashboard) ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: .85rem;
    margin-bottom: 1.1rem;
}
.stat-card {
    background: #fff;
    border: 1px solid var(--erp-border);
    border-radius: var(--erp-radius);
    padding: .9rem 1rem;
    display: flex;
    align-items: center;
    gap: .85rem;
    box-shadow: var(--erp-shadow);
}
.stat-card .stat-icon {
    width: 42px; height: 42px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem; flex-shrink: 0;
}
.stat-card .stat-label { font-size: .72rem; color: var(--erp-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.stat-card .stat-value { font-size: 1.2rem; font-weight: 700; line-height: 1.15; }
.stat-card .stat-note { font-size: .68rem; color: var(--erp-muted); }

.icon-blue  { background: #dbeafe; color: #1d4ed8; }
.icon-green { background: #d1fae5; color: #047857; }
.icon-amber { background: #fef3c7; color: #b45309; }
.icon-rose  { background: #fee2e2; color: #be123c; }
.icon-violet{ background: #ede9fe; color: #6d28d9; }
.icon-slate { background: #e2e8f0; color: #334155; }

/* ---------- Forms ---------- */
.form-label { font-size: .78rem; font-weight: 600; color: #374151; margin-bottom: .25rem; }
.form-control, .form-select {
    font-size: .86rem;
    border-radius: 6px;
    border-color: #d1d5db;
}
.form-control:focus, .form-select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 .18rem rgba(37,99,235,.12);
}
.form-hint { font-size: .72rem; color: var(--erp-muted); }
.required-star { color: var(--erp-danger); }

/* ---------- Alerts / flash ---------- */
.erp-alert {
    border-radius: 6px;
    font-size: .85rem;
    padding: .65rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.erp-alert-success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.erp-alert-danger  { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.erp-alert-warning  { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.erp-alert-info    { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* ---------- Auth pages ---------- */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #0f172a 0%, #1e3a8a 100%);
    padding: 1rem;
}
.auth-card {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 20px 40px rgba(2,6,23,.4);
    padding: 2rem 2.2rem;
}
.auth-brand { text-align: center; margin-bottom: 1.4rem; }
.auth-brand .brand-mark {
    width: 52px; height: 52px; margin: 0 auto .7rem;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--erp-primary), #4f46e5);
    color: #fff; font-size: 1.5rem;
    display: flex; align-items: center; justify-content: center;
}
.auth-brand h4 { font-weight: 700; margin: 0; }
.auth-brand p { color: var(--erp-muted); font-size: .8rem; margin: .2rem 0 0; }
.auth-foot { text-align: center; color: #94a3b8; font-size: .72rem; margin-top: 1.3rem; }

/* ---------- Pagination ---------- */
.pagination { margin: .8rem 0 0; }
.pagination .page-link { font-size: .8rem; color: var(--erp-text); border-color: var(--erp-border); }
.pagination .page-item.active .page-link { background: var(--erp-primary); border-color: var(--erp-primary); }
.pagination .page-item.disabled .page-link { color: #cbd5e1; }

/* ---------- Misc ---------- */
.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--erp-muted);
}
.empty-state i { font-size: 2.4rem; display: block; margin-bottom: .6rem; color: #cbd5e1; }

.modal-content { border-radius: 10px; border: none; box-shadow: 0 20px 50px rgba(2,6,23,.25); }
.modal-header { border-bottom: 1px solid var(--erp-border); padding: .9rem 1.2rem; }
.modal-title { font-size: 1rem; font-weight: 700; }
.modal-body { padding: 1.2rem; }
.modal-footer { border-top: 1px solid var(--erp-border); padding: .8rem 1.2rem; }

.audit-section {
    background: #f8fafc;
    border: 1px dashed #d1d5db;
    border-radius: 6px;
    padding: .6rem .8rem;
    font-size: .72rem;
    color: #64748b;
    display: flex;
    flex-wrap: wrap;
    gap: .35rem 1.4rem;
}
.audit-section b { color: #374151; }

.kbd-hint { font-size: .7rem; color: var(--erp-muted); }
.kbd-hint kbd {
    background: #f1f5f9; border: 1px solid #d1d5db; border-radius: 4px;
    padding: .05rem .35rem; font-size: .68rem;
}

/* ---------- Mobile ---------- */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, .5);
    z-index: 1035;
}
.sidebar-backdrop.show { display: block; }

@media (max-width: 991.98px) {
    .erp-sidebar { transform: translateX(-100%); }
    .erp-sidebar.open { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,.3); }
    .erp-main { margin-left: 0; }
    .erp-topbar-search { display: none; }
    .erp-content { padding: 1rem .9rem 3rem; }
    .stat-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

@media (max-width: 767.98px) {
    /* Bigger touch targets; 16px inputs prevent iOS zoom-on-focus */
    .btn { min-height: 40px; }
    .btn-sm { min-height: 34px; }
    .form-control, .form-select { min-height: 42px; font-size: 16px; }
    .form-control.form-control-sm, .form-select.form-select-sm { min-height: 36px; font-size: 15px; }
    .erp-nav-item { padding: .75rem 1.1rem; }
    .erp-topbar { height: 54px; padding: 0 .9rem; }
    .erp-content { padding: .9rem .75rem 6.5rem; }

    /* Fixed save bar for long document forms (always reachable on mobile) */
    .erp-content form > .d-flex.mb-4 {
        position: fixed;
        left: 0; right: 0; bottom: 0;
        background: #fff;
        border-top: 1px solid var(--erp-border);
        padding: .65rem 1rem;
        margin: 0;
        z-index: 900;
        box-shadow: 0 -4px 14px rgba(16,24,40,.10);
    }
    .erp-content form > .d-flex.mb-4 .btn { flex: 1; }

    /* Bottom-sheet modals */
    .modal-dialog { margin: 0; }
    .modal-content { border-radius: 16px 16px 0 0; max-height: 92vh; }
    .modal.fade .modal-dialog { transform: translateY(100%); transition: transform .2s ease; }
    .modal.show .modal-dialog { transform: translateY(0); }
    .modal-body { padding: 1rem; max-height: 62vh; overflow-y: auto; }

    /* Item suggestion list full width */
    .item-suggest { max-width: 94vw !important; }

    /* Compact cards on phones */
    .stat-card { padding: .75rem .85rem; }
    .stat-value { font-size: 1.05rem; }
    .stat-note { display: none; }

    /* Tables: smooth horizontal scroll */
    .erp-table-wrap { -webkit-overflow-scrolling: touch; }
    .erp-table { min-width: 640px; }
}

@media (max-width: 575.98px) {
    .erp-page-head { gap: .6rem; }
    .erp-page-head h1 { font-size: 1.05rem; }
    .erp-page-head .actions { width: 100%; }
.user-chip .u-name, .user-chip .u-role { display: none; }
.erp-card-header { flex-wrap: wrap; }
.auth-card { padding: 1.6rem 1.3rem; }
.erp-hamburger { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; }
}

/* ---------- Print ---------- */
@media print {
    .erp-sidebar, .erp-topbar, .sidebar-backdrop, .no-print, .erp-alert {
        display: none !important;
    }
    .erp-main { margin-left: 0; }
    .erp-content { padding: 0; }
    body { font-size: 11px; }
    .stat-card { box-shadow: none; border: 1px solid #ccc; }
}