/* ============================================================
   Stock Manager – app.css
   Branded for Ace Case Ltd  –  acecase.co.uk
   Palette: deep charcoal + Ace Red + industrial white
   ============================================================ */

:root {
    /* Ace Case brand colours */
    --bg:        #111214;   /* near-black, cooler than pure black */
    --bg2:       #1a1b1e;   /* sidebar / card backgrounds */
    --bg3:       #232428;   /* table header / hover */
    --border:    #2e3035;
    --border2:   #3d3f45;
    --text:      #e8e9eb;
    --text-dim:  #868a93;
    --text-faint:#454850;

    /* Ace Red – primary accent */
    --accent:    #c8102e;
    --accent2:   #a50d25;
    --accent-glow: rgba(200,16,46,0.18);

    /* Status colours */
    --green:     #22c55e;
    --amber:     #f59e0b;
    --red:       #ef4444;
    --purple:    #a78bfa;

    --sidebar-w: 230px;
    --radius:    3px;
    --font-display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
    --font-sans:    'Barlow', system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', 'Courier New', monospace;
}

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

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── Layout ── */
body { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
}

.sidebar::before {
    content: '';
    display: block;
    height: 3px;
    background: var(--accent);
    flex-shrink: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 18px;
    height: 64px;
    border-bottom: 1px solid var(--border);
    background: var(--bg2);
    text-decoration: none;
}

.brand-logo {
    height: 36px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.brand-sub {
    font-family: var(--font-sans);
    font-size: 9px;
    font-weight: 500;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.nav-list {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 18px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.15s, background 0.15s;
    border-left: 2px solid transparent;
}

.nav-link:hover {
    color: var(--text);
    background: var(--bg3);
}

.nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
    border-left-color: var(--accent);
}

.nav-icon {
    font-size: 15px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.user-avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-name {
    font-size: 12px;
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-logout {
    color: var(--text-faint);
    text-decoration: none;
    font-size: 16px;
    padding: 4px;
    border-radius: var(--radius);
    transition: color 0.15s;
}
.btn-logout:hover { color: var(--red); }

/* ── Main content ── */
.main-wrap {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    height: 64px;
    border-bottom: 1px solid var(--border);
    background: var(--bg2);
    gap: 16px;
}

.page-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text);
    text-transform: uppercase;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.page-content {
    padding: 24px 28px;
    flex: 1;
}

/* ── Flash messages ── */
.flash {
    margin: 16px 28px 0;
    padding: 12px 16px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
    border: 1px solid;
}
.flash-success { background: rgba(34,197,94,0.08);  border-color: var(--green); color: var(--green); }
.flash-error   { background: rgba(200,16,46,0.10);  border-color: var(--accent); color: #ff6b7a; }
.flash-info    { background: rgba(200,16,46,0.08);  border-color: var(--accent); color: var(--accent); }
.flash-close   { background: none; border: none; cursor: pointer; color: inherit; font-size: 14px; padding: 0 4px; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn-primary  { background: var(--accent);  color: #fff; border-color: var(--accent); }
.btn-primary:hover  { background: var(--accent2); border-color: var(--accent2); }
.btn-secondary { background: transparent; color: var(--text-dim); border-color: var(--border2); }
.btn-secondary:hover { color: var(--text); border-color: var(--text-dim); }
.btn-danger   { background: transparent; color: var(--red); border-color: var(--red); }
.btn-danger:hover   { background: rgba(239,68,68,0.12); }
.btn-sm       { padding: 4px 10px; font-size: 11px; }
.btn-green    { background: var(--green); color: #111214; border-color: var(--green); font-weight: 700; }
.btn-green:hover  { filter: brightness(1.1); }

/* ── Cards ── */
.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.card-title {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* ── Stat cards ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
}

.stat-card.green::before  { background: var(--green); }
.stat-card.amber::before  { background: var(--amber); }
.stat-card.red::before    { background: var(--red); }
.stat-card.purple::before { background: var(--purple); }

.stat-label {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-sub {
    font-size: 12px;
    color: var(--text-dim);
}

/* ── Tables ── */
.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    background: var(--bg3);
    padding: 10px 14px;
    text-align: left;
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--bg3); }

tbody td {
    padding: 10px 14px;
    vertical-align: middle;
}

.mono { font-family: var(--font-mono); font-size: 12px; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.text-green { color: var(--green); }
.text-red   { color: var(--red); }
.text-amber { color: var(--amber); }
.text-accent { color: var(--accent); }

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid;
}
.badge-in      { color: var(--green);  border-color: var(--green);  background: rgba(34,197,94,0.08); }
.badge-out     { color: #ff6b7a;       border-color: var(--red);    background: rgba(239,68,68,0.08); }
.badge-adj     { color: var(--purple); border-color: var(--purple); background: rgba(167,139,250,0.08); }
.badge-ok      { color: var(--green);  border-color: var(--green);  background: rgba(34,197,94,0.08); }
.badge-warn    { color: var(--amber);  border-color: var(--amber);  background: rgba(245,158,11,0.08); }
.badge-danger  { color: #ff6b7a;       border-color: var(--red);    background: rgba(239,68,68,0.08); }
.badge-empty   { color: var(--text-dim); border-color: var(--border2); background: var(--bg3); }
.badge-admin   { color: var(--accent); border-color: var(--accent); background: var(--accent-glow); }

/* ── Forms ── */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full { grid-column: 1 / -1; }

label {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="email"],
input[type="password"],
select,
textarea {
    background: var(--bg3);
    border: 1px solid var(--border2);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 13px;
    padding: 8px 12px;
    transition: border-color 0.15s;
    width: 100%;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

textarea { resize: vertical; min-height: 80px; }

select option { background: var(--bg3); }

.form-hint { font-size: 11px; color: var(--text-dim); }

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ── Filter bar ── */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.filter-bar input, .filter-bar select {
    width: auto;
    min-width: 160px;
}

/* ── Pagination ── */
.pagination {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    justify-content: flex-end;
}
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px; height: 32px;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 12px;
    text-decoration: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    transition: all 0.15s;
}
.pagination a:hover       { border-color: var(--accent); color: var(--accent); }
.pagination .current-page { background: var(--accent); border-color: var(--accent); color: #fff; }
.pagination .disabled     { opacity: 0.3; pointer-events: none; }

/* ── Tabs ── */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    gap: 0;
}
.tab-link {
    padding: 10px 20px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-dim);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.15s;
}
.tab-link:hover  { color: var(--text); }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Login page ── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 39px,
            var(--border) 39px,
            var(--border) 40px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 39px,
            var(--border) 39px,
            var(--border) 40px
        );
    background-size: 40px 40px;
    background-color: var(--bg);
}
.login-box {
    width: 380px;
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-top: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
    position: relative;
    z-index: 1;
}
.login-logo {
    text-align: center;
    margin-bottom: 28px;
}
.login-logo img {
    height: 52px;
    width: auto;
    display: block;
    margin: 0 auto 12px;
}
.login-logo .login-tagline {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-faint);
    display: block;
}
.login-box .form-group  { margin-bottom: 14px; }
.login-box .btn         { width: 100%; justify-content: center; margin-top: 8px; padding: 10px 16px; font-size: 14px; }
.login-error {
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    color: #ff8f9c;
    font-size: 12px;
    text-align: center;
    margin-bottom: 16px;
    padding: 8px 12px;
    border-radius: var(--radius);
}

/* ── Utility ── */
.mb-0  { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex  { display: flex; }
.flex-col { flex-direction: column; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-faint);
    font-family: var(--font-display);
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ── Responsive ── */
@media (max-width: 700px) {
    .sidebar { width: 60px; }
    .sidebar .brand-name, .sidebar .nav-link span:last-child,
    .sidebar .user-name { display: none; }
    .main-wrap { margin-left: 60px; }
    .page-content { padding: 16px; }
    .page-header  { padding: 14px 16px; }
}