/* assets/css/style.css */

:root {
    --bg:          #0f1117;
    --bg-surface:  #181c27;
    --bg-card:     #1e2335;
    --bg-hover:    #252b40;
    --border:      #2a3050;
    --accent:      #4f8ef7;
    --accent-glow: rgba(79, 142, 247, 0.15);
    --accent-dark: #3a72d8;
    --success:     #2ecc71;
    --warning:     #f39c12;
    --danger:      #e74c3c;
    --info:        #3498db;
    --text:        #e8ecf4;
    --text-muted:  #7a8aaa;
    --text-dim:    #4a5570;
    --radius:      10px;
    --radius-sm:   6px;
    --font:        'DM Sans', sans-serif;
    --font-mono:   'DM Mono', monospace;
    --shadow:      0 4px 24px rgba(0,0,0,0.4);
    --shadow-sm:   0 2px 8px rgba(0,0,0,0.3);
}

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

html { font-size: 15px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

/* ─── Navbar ─────────────────────────────────────────────────────────────── */

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 60px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: .7rem;
}

.nav-icon {
    font-size: 1.4rem;
    color: var(--accent);
}

.nav-logo { height: 32px; }

.brand-name {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -.01em;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: .875rem;
    font-weight: 500;
    padding: .3rem 0;
    border-bottom: 2px solid transparent;
    transition: color .2s, border-color .2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    border-bottom-color: var(--accent);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border);
}

.user-name {
    font-size: .875rem;
    color: var(--text-muted);
}

.badge-admin {
    font-size: .65rem;
    font-family: var(--font-mono);
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: .1rem .4rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.btn-logout {
    font-size: .8rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: .3rem .7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all .2s;
}

.btn-logout:hover {
    color: var(--danger);
    border-color: var(--danger);
}

/* ─── Main ───────────────────────────────────────────────────────────────── */

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -.02em;
}

.page-header p {
    color: var(--text-muted);
    margin-top: .3rem;
    font-size: .9rem;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: .75rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -.01em;
}

/* ─── Grid ───────────────────────────────────────────────────────────────── */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

/* ─── Customers list ─────────────────────────────────────────────────────── */

.customer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.customer-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem 1.4rem;
    cursor: pointer;
    transition: border-color .2s, background .2s, transform .15s;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.customer-card:hover {
    border-color: var(--accent);
    background: var(--bg-hover);
    transform: translateY(-1px);
}

.customer-card.selected {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.customer-name {
    font-weight: 500;
    font-size: .95rem;
}

.customer-meta {
    font-size: .78rem;
    color: var(--text-muted);
    margin-top: .2rem;
    font-family: var(--font-mono);
}

.chevron {
    color: var(--text-dim);
    font-size: .8rem;
    transition: color .2s;
}

.customer-card:hover .chevron { color: var(--accent); }

/* ─── Devices ────────────────────────────────────────────────────────────── */

.device-list {
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.device-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .9rem 1.2rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color .2s;
}

.device-item:hover { border-color: var(--accent); }

.device-info { flex: 1; }

.device-name {
    font-weight: 500;
    font-size: .9rem;
    font-family: var(--font-mono);
}

.device-details {
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: .15rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: .5rem;
    display: inline-block;
}

.status-dot.online  { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--text-dim); }

/* ─── Buttons ────────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: all .2s;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

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

.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.btn-danger:hover { background: rgba(231,76,60,.1); }

.btn-connect {
    background: var(--success);
    color: #fff;
    font-size: .8rem;
    padding: .4rem .9rem;
}

.btn-connect:hover { background: #27ae60; }

.btn-sm { padding: .3rem .7rem; font-size: .8rem; }

/* ─── Forms ──────────────────────────────────────────────────────────────── */

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: .4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: .65rem .9rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: .9rem;
    transition: border-color .2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group small {
    display: block;
    margin-top: .3rem;
    color: var(--text-muted);
    font-size: .78rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ─── Tables ─────────────────────────────────────────────────────────────── */

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}

th {
    text-align: left;
    padding: .7rem 1rem;
    font-weight: 500;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

td {
    padding: .8rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr:last-child td { border-bottom: none; }

tr:hover td { background: var(--bg-hover); }

/* ─── Alerts ─────────────────────────────────────────────────────────────── */

.alert {
    padding: .85rem 1.1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.2rem;
    font-size: .875rem;
    border-left: 3px solid;
}

.alert-success { background: rgba(46,204,113,.1); border-color: var(--success); color: #5dde8f; }
.alert-error   { background: rgba(231,76,60,.1);  border-color: var(--danger);  color: #f1948a; }
.alert-warning { background: rgba(243,156,18,.1); border-color: var(--warning); color: #f5b942; }
.alert-info    { background: rgba(52,152,219,.1); border-color: var(--info);    color: #76b9e8; }

/* ─── Badges ─────────────────────────────────────────────────────────────── */

.badge {
    font-size: .7rem;
    padding: .15rem .5rem;
    border-radius: 4px;
    font-weight: 500;
    font-family: var(--font-mono);
}

.badge-active   { background: rgba(46,204,113,.15); color: var(--success); border: 1px solid rgba(46,204,113,.3); }
.badge-inactive { background: rgba(231,76,60,.1);   color: var(--danger);  border: 1px solid rgba(231,76,60,.3); }
.badge-admin2   { background: var(--accent-glow);   color: var(--accent);  border: 1px solid rgba(79,142,247,.3); }

/* ─── Search bar ─────────────────────────────────────────────────────────── */

.search-bar {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-bar input {
    width: 100%;
    padding: .7rem 1rem .7rem 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font);
    font-size: .9rem;
    transition: border-color .2s;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent);
}

.search-bar::before {
    content: '⌕';
    position: absolute;
    left: .8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ─── Stats ──────────────────────────────────────────────────────────────── */

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem;
    text-align: center;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: .8rem;
    color: var(--text-muted);
    margin-top: .4rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

/* ─── Login page ─────────────────────────────────────────────────────────── */

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

.login-box {
    width: 100%;
    max-width: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo .icon {
    font-size: 2.5rem;
    color: var(--accent);
    display: block;
}

.login-logo .company {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: .4rem;
}

.login-logo .sub {
    font-size: .8rem;
    color: var(--text-muted);
}

/* ─── Admin tabs ─────────────────────────────────────────────────────────── */

.tab-bar {
    display: flex;
    gap: .3rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.tab-link {
    padding: .6rem 1.2rem;
    font-size: .875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all .2s;
}

.tab-link:hover  { color: var(--text); }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ─── Toggle switch ──────────────────────────────────────────────────────── */

.toggle-wrap {
    display: flex;
    align-items: center;
    gap: .8rem;
}

.toggle {
    position: relative;
    width: 40px;
    height: 22px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: 22px;
    cursor: pointer;
    transition: background .2s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    left: 3px;
    top: 3px;
    transition: transform .2s;
}

.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ─── Loading / spinner ──────────────────────────────────────────────────── */

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

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

.loading-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

/* ─── Splitpanel ─────────────────────────────────────────────────────────── */

.split-panel {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.panel-left {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    position: sticky;
    top: 80px;
}

.panel-left-header {
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: .9rem;
}

.panel-right {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    min-height: 400px;
}

.customer-list-item {
    padding: .8rem 1.2rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background .15s;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.customer-list-item:last-child { border-bottom: none; }

.customer-list-item:hover { background: var(--bg-hover); }
.customer-list-item.active { background: var(--accent-glow); border-left: 3px solid var(--accent); }

/* ─── Folder groups ──────────────────────────────────────────────────────── */

.folder-group {
    margin-bottom: 1.2rem;
}

.folder-header {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .7rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    border-bottom: none;
}

.folder-icon { font-size: .9rem; }

.folder-name {
    font-size: .85rem;
    font-weight: 600;
    flex: 1;
}

.folder-count {
    font-size: .72rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    background: var(--bg-card);
    padding: .1rem .4rem;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.folder-group .device-list {
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    overflow: hidden;
}

.folder-group .device-item {
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
}

.folder-group .device-item:last-child {
    border-bottom: none;
}

/* ─── Empty state ────────────────────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 1rem; opacity: .4; }
.empty-state p     { font-size: .9rem; }

/* ─── Footer ─────────────────────────────────────────────────────────────── */

.footer {
    text-align: center;
    padding: 1rem;
    font-size: .75rem;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
}

/* ─── Exclusion checkboxes ───────────────────────────────────────────────── */

.exclusion-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: .5rem;
    max-height: 320px;
    overflow-y: auto;
    padding: .5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.exclusion-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background .15s;
    font-size: .85rem;
}

.exclusion-item:hover { background: var(--bg-hover); }

.exclusion-item input[type="checkbox"] { accent-color: var(--accent); }

/* ─── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .split-panel  { grid-template-columns: 1fr; }
    .panel-left   { position: static; }
    .grid-2, .grid-3, .form-row { grid-template-columns: 1fr; }
    .main-content { padding: 1rem; }
    .navbar       { padding: 0 1rem; }
}