/* ============================================
   POS App — Modern UI Design System
   ============================================ */

/* CSS Design Tokens */
:root {
    --pos-primary:        #4f46e5;
    --pos-primary-light:  #818cf8;
    --pos-primary-dark:   #3730a3;
    --pos-secondary:      #0ea5e9;
    --pos-success:        #10b981;
    --pos-warning:        #f59e0b;
    --pos-danger:         #ef4444;
    --pos-info:           #06b6d4;

    --pos-bg:             #f1f5f9;
    --pos-bg-card:        #ffffff;
    --pos-navbar-bg:      #1e293b;

    --pos-text:           #0f172a;
    --pos-text-muted:     #64748b;
    --pos-text-light:     #94a3b8;

    --pos-border:         #e2e8f0;

    --pos-shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --pos-shadow:     0 4px 6px -1px rgba(0,0,0,.10), 0 2px 4px -1px rgba(0,0,0,.06);
    --pos-shadow-md:  0 10px 15px -3px rgba(0,0,0,.10), 0 4px 6px -2px rgba(0,0,0,.05);
    --pos-shadow-lg:  0 20px 25px -5px rgba(0,0,0,.12), 0 10px 10px -5px rgba(0,0,0,.06);

    --pos-radius:     12px;
    --pos-radius-sm:   8px;
    --pos-radius-lg:  16px;

    --pos-transition: all .2s ease;
    --pos-navbar-h:   62px;
}

/* ============================================
   BASE
   ============================================ */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--pos-bg);
    color: var(--pos-text);
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================
   NAVBAR
   ============================================ */

/*
 * Strategy: the inline style on the <nav> element sets the gradient
 * background directly. CSS below reinforces all text colors and
 * dropdown styles with !important to beat any framework override.
 */

/* Navbar wrapper — gradient background via inline style + CSS backup */
nav.pos-navbar,
nav.pos-navbar.navbar,
nav.navbar.pos-navbar {
    background-color: #1e293b !important;
    background-image: linear-gradient(135deg, #1e293b 0%, #312e81 55%, #1e1b4b 100%) !important;
    border-bottom: 1px solid rgba(255,255,255,.07) !important;
    box-shadow: 0 4px 16px rgba(0,0,0,.28) !important;
    height: var(--pos-navbar-h);
    padding: 0 1.5rem;
    /* Reset MDB CSS variables for dark mode */
    --mdb-navbar-color:             rgba(255,255,255,.80);
    --mdb-navbar-hover-color:       #ffffff;
    --mdb-navbar-active-color:      #ffffff;
    --mdb-navbar-brand-color:       #ffffff;
    --mdb-navbar-brand-hover-color: #ffffff;
    --mdb-navbar-box-shadow:        none;
}

/* Brand label */
nav.pos-navbar .navbar-brand {
    font-weight: 700;
    font-size: 1.05rem;
    color: #ffffff !important;
    letter-spacing: .4px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0;
}

/* brand icon box (span.brand-icon inside brand label) */
.brand-icon {
    width: 30px;
    height: 30px;
    background: rgba(255,255,255,.16);
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    vertical-align: middle;
}

/* Nav links — force white text */
nav.pos-navbar .navbar-nav .nav-link,
nav.pos-navbar .navbar-nav > li > a {
    color: rgba(255,255,255,.82) !important;
    font-size: 13.5px !important;
    font-weight: 500;
    padding: .4rem .85rem !important;
    border-radius: 7px;
    transition: color .15s ease, background .15s ease;
    background-color: transparent !important;
}

nav.pos-navbar .navbar-nav .nav-link:hover,
nav.pos-navbar .navbar-nav > li > a:hover,
nav.pos-navbar .navbar-nav .nav-link:focus,
nav.pos-navbar .navbar-nav > li > a:focus {
    color: #ffffff !important;
    background-color: rgba(255,255,255,.11) !important;
}

nav.pos-navbar .navbar-nav > li.active > a,
nav.pos-navbar .navbar-nav .nav-item.active .nav-link {
    color: #ffffff !important;
    background-color: rgba(79,70,229,.38) !important;
}

/* Dropdown menus */
nav.pos-navbar .dropdown-menu {
    background-color: #1e293b !important;
    border: 1px solid rgba(255,255,255,.10) !important;
    border-radius: var(--pos-radius) !important;
    box-shadow: 0 20px 40px rgba(0,0,0,.38) !important;
    padding: .4rem !important;
    min-width: 210px;
    margin-top: 6px !important;
}

nav.pos-navbar .dropdown-item {
    color: rgba(255,255,255,.80) !important;
    border-radius: 7px !important;
    padding: .5rem .85rem !important;
    font-size: 13px !important;
    background-color: transparent !important;
    transition: background .15s ease, color .15s ease;
}

nav.pos-navbar .dropdown-item:hover,
nav.pos-navbar .dropdown-item:focus {
    background-color: rgba(79,70,229,.28) !important;
    color: #ffffff !important;
}

/* Toggler */
nav.pos-navbar .navbar-toggler {
    border-color: rgba(255,255,255,.35) !important;
}

nav.pos-navbar .navbar-toggler i {
    color: rgba(255,255,255,.85) !important;
}

nav.pos-navbar .navbar-toggler-icon {
    filter: invert(1) brightness(2);
}

/* Also cover via #header selector as extra safety net */
#header > nav {
    background-color: #1e293b !important;
    background-image: linear-gradient(135deg, #1e293b 0%, #312e81 55%, #1e1b4b 100%) !important;
}

#header .navbar-brand { color: #ffffff !important; }

#header .navbar-nav .nav-link,
#header .navbar-nav > li > a {
    color: rgba(255,255,255,.82) !important;
}

#header .navbar-nav .nav-link:hover,
#header .navbar-nav > li > a:hover {
    color: #ffffff !important;
    background-color: rgba(255,255,255,.11) !important;
}

#header .dropdown-menu {
    background-color: #1e293b !important;
    border: 1px solid rgba(255,255,255,.10) !important;
}

#header .dropdown-item {
    color: rgba(255,255,255,.80) !important;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
main > .container {
    padding: calc(var(--pos-navbar-h) + 22px) 15px 32px !important;
}

main > .container-fluid {
    padding: calc(var(--pos-navbar-h) + 22px) 1.5rem 32px !important;
}

/* Page title */
h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--pos-text);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: .6rem;
}

h1::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.35rem;
    background: linear-gradient(180deg, var(--pos-primary), var(--pos-secondary));
    border-radius: 4px;
    flex-shrink: 0;
}

/* ============================================
   BREADCRUMBS
   ============================================ */
.breadcrumb {
    background: transparent;
    padding: .25rem 0 .75rem;
    font-size: 12.5px;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--pos-text-light);
}

.breadcrumb-item a {
    color: var(--pos-primary);
    text-decoration: none;
    transition: var(--pos-transition);
}

.breadcrumb-item a:hover {
    color: var(--pos-primary-dark);
}

.breadcrumb-item.active {
    color: var(--pos-text-muted);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    box-shadow: var(--pos-shadow-sm);
    background: var(--pos-bg-card);
    transition: var(--pos-transition);
}

.card:hover {
    box-shadow: var(--pos-shadow);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--pos-border);
    padding: .9rem 1.25rem;
    font-weight: 600;
    font-size: 14px;
}

.card-body {
    padding: 1.25rem;
}

/* ============================================
   PANELS (Bootstrap 3 compat)
   ============================================ */
.panel {
    background: var(--pos-bg-card);
    border: 1px solid var(--pos-border) !important;
    border-radius: var(--pos-radius) !important;
    box-shadow: var(--pos-shadow-sm) !important;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.panel-body {
    padding: 1.25rem;
}

.panel-heading {
    padding: .8rem 1.25rem;
    font-weight: 600;
    font-size: 13.5px;
    letter-spacing: .3px;
    border: none !important;
}

.panel-title {
    margin: 0;
    font-size: 13.5px;
    color: inherit;
    font-weight: 600;
}

.panel-footer {
    padding: .75rem 1.25rem;
    background: #f8fafc;
    border-top: 1px solid var(--pos-border);
    border-radius: 0 0 var(--pos-radius) var(--pos-radius);
}

/* Panel variants */
.panel-primary {
    border-color: var(--pos-primary) !important;
}
.panel-primary > .panel-heading {
    background: linear-gradient(135deg, var(--pos-primary), var(--pos-primary-dark)) !important;
    color: #ffffff !important;
}

.panel-default {
    border-color: var(--pos-border) !important;
}
.panel-default > .panel-heading {
    background: linear-gradient(135deg, #475569, #334155) !important;
    color: #ffffff !important;
}

.panel-success > .panel-heading {
    background: linear-gradient(135deg, #059669, #047857) !important;
    color: #ffffff !important;
}

.panel-info > .panel-heading {
    background: linear-gradient(135deg, #0891b2, #0e7490) !important;
    color: #ffffff !important;
}

.panel-warning > .panel-heading {
    background: linear-gradient(135deg, #d97706, #b45309) !important;
    color: #ffffff !important;
}

.panel-danger > .panel-heading {
    background: linear-gradient(135deg, #dc2626, #b91c1c) !important;
    color: #ffffff !important;
}

/* ============================================
   TABLES / GRIDVIEW
   ============================================ */
.kv-grid-container {
    border-radius: 0 0 var(--pos-radius) var(--pos-radius);
    overflow: hidden;
}

.kv-grid-container > table > thead.kv-table-header > tr > td,
.kv-grid-container > table > thead.kv-table-header > tr > th {
    padding: .65rem .9rem;
    background: #f8fafc;
    color: var(--pos-text-muted);
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 2px solid var(--pos-border);
    white-space: nowrap;
}

.kv-grid-container > table > tbody > tr > td,
.kv-grid-container > table > tbody > tr > th {
    padding: .65rem .9rem;
    font-size: 13px;
    vertical-align: middle;
    border-bottom: 1px solid var(--pos-border);
    transition: background .12s ease;
}

.kv-grid-container > table > tbody > tr:hover > td {
    background-color: rgba(79,70,229,.04);
}

table.detail-view > tbody > tr > td,
table.detail-view > tbody > tr > th {
    padding: .7rem 1rem;
    font-size: 13.5px;
    border-bottom: 1px solid var(--pos-border);
}

table.detail-view > tbody > tr > th {
    background: #f8fafc;
    color: var(--pos-text-muted);
    font-weight: 600;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: .4px;
    white-space: nowrap;
    width: 28%;
}

.grid-view th {
    white-space: nowrap;
}

/* Sort arrows */
a.asc:after,
a.desc:after {
    content: "";
    left: 3px;
    display: inline-block;
    width: 0;
    height: 0;
    border: solid 5px transparent;
    margin: 4px 4px 2px 4px;
    background: transparent;
}

a.asc:after {
    border-bottom: solid 7px var(--pos-primary);
    border-top-width: 0;
}

a.desc:after {
    border-top: solid 7px var(--pos-primary);
    border-bottom-width: 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    font-weight: 500;
    letter-spacing: .25px;
    border-radius: var(--pos-radius-sm) !important;
    transition: var(--pos-transition);
    font-size: 13px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0,0,0,.15);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-sm,
.btn-group-sm > .btn {
    --mdb-btn-padding-top:    5px !important;
    --mdb-btn-padding-bottom: 5px !important;
    --mdb-btn-padding-x:      10px !important;
    --mdb-btn-font-size:      12px !important;
    --mdb-btn-border-radius:  6px !important;
}

.btn-xs,
.btn-group-xs > .btn {
    --mdb-btn-padding-top:    2px !important;
    --mdb-btn-padding-bottom: 2px !important;
    --mdb-btn-padding-x:      7px !important;
    --mdb-btn-font-size:      11.5px !important;
    --mdb-btn-border-radius:  4px !important;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: 1.1rem;
}

.form-control,
.form-select {
    border: 1.5px solid var(--pos-border);
    border-radius: var(--pos-radius-sm);
    font-size: 13.5px;
    color: var(--pos-text);
    transition: var(--pos-transition);
    background-color: #ffffff;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--pos-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.15);
    outline: none;
}

.form-label,
.control-label {
    font-weight: 500;
    font-size: 13px;
    color: var(--pos-text-muted);
    margin-bottom: .3rem;
}

input[readonly] {
    cursor: not-allowed !important;
    pointer-events: none !important;
    user-select: none;
    background-color: #f8fafc !important;
    opacity: .85;
}

.hint-block {
    display: block;
    margin-top: 4px;
    color: var(--pos-text-light);
    font-size: 12px;
}

.help-block {
    color: var(--pos-danger) !important;
    font-size: 12px;
}

.error-summary {
    color: var(--pos-danger);
    background: rgba(239,68,68,.07);
    border-left: 3px solid var(--pos-danger);
    border-radius: 0 var(--pos-radius-sm) var(--pos-radius-sm) 0;
    padding: .75rem 1.25rem;
    margin-bottom: 1rem;
    font-size: 13px;
}

.not-set {
    color: var(--pos-danger);
    font-style: italic;
}

.text-plain {
    background-color: transparent !important;
    border: 0 !important;
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    border-radius: var(--pos-radius-sm);
    border: none;
    font-size: 13.5px;
    padding: .8rem 1.15rem;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16,185,129,.1);
    color: #065f46;
    border-left-color: var(--pos-success);
}

.alert-danger {
    background: rgba(239,68,68,.1);
    color: #991b1b;
    border-left-color: var(--pos-danger);
}

.alert-warning {
    background: rgba(245,158,11,.1);
    color: #78350f;
    border-left-color: var(--pos-warning);
}

.alert-info {
    background: rgba(6,182,212,.1);
    color: #164e63;
    border-left-color: var(--pos-info);
}

/* ============================================
   FOOTER
   ============================================ */
#footer {
    background: var(--pos-navbar-bg) !important;
    color: rgba(255,255,255,.55);
    font-size: 12px;
    padding: .9rem 0 !important;
    margin-top: auto;
    border-top: 1px solid rgba(255,255,255,.06);
}

#footer .text-muted {
    color: rgba(255,255,255,.45) !important;
}

/* ============================================
   LOGOUT BUTTON
   ============================================ */
.nav li > form > button.logout {
    padding-top: 7px;
    color: rgba(255,255,255,.7);
}

@media (max-width: 767px) {
    .nav li > form > button.logout {
        display: block;
        text-align: left;
        width: 100%;
        padding: 10px 0;
    }
}

.nav > li > form > button.logout:focus,
.nav > li > form > button.logout:hover {
    text-decoration: none;
    color: rgba(255,255,255,.95);
}

.nav > li > form > button.logout:focus {
    outline: none;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.blink {
    animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
    0%   { opacity: 1; }
    50%  { opacity: .25; }
    100% { opacity: 1; }
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.site-index,
main > .container > *,
main > .container-fluid > * {
    animation: fadeSlideIn .3s ease both;
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    .no-print,
    .no-print * {
        display: none !important;
    }
}