/* =====================================================
   退火科技 Token Store - cyber/neon dark UI
   不依赖任何外部 CDN, 不引入 Bootstrap / Tailwind / Icon font.
   ===================================================== */

:root {
    --bg-primary: #05060a;
    --bg-secondary: #0a0d18;
    --bg-card: #0f1426;
    --bg-card-hover: #131a30;
    --bg-elev: #131a30;

    --neon-cyan: #00f0ff;
    --neon-cyan-dim: #07a3ad;
    --neon-purple: #b347ff;
    --neon-pink: #ff2bd6;
    --neon-green: #1aff9c;
    --neon-yellow: #ffe800;

    --text-primary: #d6e1f2;
    --text-secondary: #7d8aa3;
    --text-muted: #4d5a72;

    --border-color: #1a2542;
    --border-strong: #243156;

    --grid-color: rgba(0, 240, 255, 0.045);
    --scan-color: rgba(0, 240, 255, 0.025);
}

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

html, body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
                 "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
    min-height: 100vh;
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

/* sticky footer: 让前台 footer 永远贴在视口底部 */
body {
    display: flex;
    flex-direction: column;
}
body > main {
    flex: 1 0 auto;
    width: 100%;
}
body > .site-footer {
    flex-shrink: 0;
}

/* 网格背景 + 渐变光晕 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}
body::after {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at top left, rgba(0,240,255,0.08), transparent 60%),
        radial-gradient(ellipse at bottom right, rgba(179,71,255,0.08), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

a { color: var(--neon-cyan); text-decoration: none; transition: all .15s; }
a:hover { text-shadow: 0 0 8px var(--neon-cyan); }

code, pre, .mono {
    font-family: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ============== Header ============== */
.site-header {
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(15,20,38,0.92), rgba(5,6,10,0.6));
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}
.logo:hover { text-shadow: none; }

.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
    display: inline-block;
    flex-shrink: 0;
}
.logo-name { color: var(--neon-cyan); }
.logo-tag {
    color: var(--text-secondary);
    font-size: 10px;
    letter-spacing: 1.5px;
    border: 1px solid var(--border-color);
    padding: 2px 6px;
    border-radius: 3px;
    margin-left: 4px;
    font-family: monospace;
}

.nav { display: flex; gap: 4px; }
.nav a {
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: 4px;
    border: 1px solid transparent;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
.nav a:hover {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0,240,255,0.2);
    text-shadow: none;
}

/* ============== Hero ============== */
.hero {
    margin-top: 32px;
    padding: 40px 32px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background:
        linear-gradient(135deg, rgba(0,240,255,0.05), rgba(179,71,255,0.05)),
        var(--bg-card);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-purple), transparent);
}
.hero::after {
    content: "01001100 01010011 01000110 01000010";
    position: absolute;
    right: 18px;
    bottom: 12px;
    color: var(--text-muted);
    font-family: monospace;
    font-size: 10px;
    letter-spacing: 2px;
    opacity: 0.4;
}

.hero h1 {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.hero h1 .accent {
    color: var(--neon-cyan);
    text-shadow: 0 0 12px rgba(0,240,255,0.6);
    font-family: monospace;
}
.hero .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
    letter-spacing: 1.5px;
}
.hero .desc {
    color: var(--text-secondary);
    max-width: 720px;
    line-height: 1.8;
}

.notice {
    margin-top: 28px;
    padding: 12px 16px;
    border: 1px dashed rgba(26, 255, 156, 0.4);
    border-radius: 4px;
    background: rgba(26,255,156,0.04);
    color: var(--neon-green);
    font-size: 13px;
    letter-spacing: 1px;
    font-family: monospace;
}
.notice::before { content: "// "; color: var(--text-muted); }

/* ============== Section title ============== */
.section-title {
    margin: 40px 0 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: monospace;
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--neon-cyan);
    text-transform: uppercase;
}
.section-title::before {
    content: "▣";
    color: var(--neon-purple);
    text-shadow: 0 0 8px var(--neon-purple);
}
.section-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-strong), transparent);
}

/* ============== Product card ============== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.product-card {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: 6px;
    padding: 24px;
    position: relative;
    transition: all 0.25s ease;
    overflow: hidden;
}
.product-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    opacity: 0.55;
}
.product-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        var(--scan-color),
        var(--scan-color) 1px,
        transparent 1px,
        transparent 4px
    );
    pointer-events: none;
    opacity: 0.6;
}
.product-card:hover {
    border-color: var(--neon-cyan);
    background: var(--bg-card-hover);
    box-shadow:
        0 0 24px rgba(0,240,255,0.18),
        0 0 80px rgba(179,71,255,0.06);
    transform: translateY(-2px);
}
.product-card > * { position: relative; z-index: 1; }

.product-card .product-id {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
}
.product-card h3 {
    font-size: 17px;
    margin: 6px 0 14px;
    letter-spacing: 1px;
    color: var(--text-primary);
}
.product-card .tokens {
    font-family: monospace;
    font-size: 28px;
    color: var(--neon-cyan);
    text-shadow: 0 0 8px rgba(0,240,255,0.4);
    margin-bottom: 4px;
    line-height: 1.1;
}
.product-card .tokens-label {
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 3px;
    font-family: monospace;
}
.product-card .desc {
    color: var(--text-secondary);
    font-size: 13px;
    margin: 16px 0;
    min-height: 40px;
    line-height: 1.7;
}
.product-card .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-top: 1px dashed var(--border-color);
    border-bottom: 1px dashed var(--border-color);
    margin-bottom: 16px;
}
.product-card .price {
    color: var(--neon-pink);
    font-size: 24px;
    font-weight: 700;
    text-shadow: 0 0 6px rgba(255,43,214,0.4);
    font-family: monospace;
}
.product-card .price .currency {
    font-size: 14px;
    color: var(--text-secondary);
    margin-right: 4px;
    text-shadow: none;
}
.product-card .stock {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: monospace;
    letter-spacing: 1px;
}
.product-card .stock.empty { color: var(--neon-pink); }
.product-card .stock.ok { color: var(--neon-green); }

/* ============== Buttons ============== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: inherit;
    transition: all 0.2s;
    text-align: center;
    line-height: 1.4;
}
.btn:hover {
    background: rgba(0,240,255,0.1);
    box-shadow: 0 0 16px rgba(0,240,255,0.4);
    text-shadow: 0 0 6px var(--neon-cyan);
}
.btn-block { display: block; width: 100%; }
.btn-primary {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
}
.btn-primary:hover {
    background: rgba(255,43,214,0.1);
    box-shadow: 0 0 16px rgba(255,43,214,0.4);
    text-shadow: 0 0 6px var(--neon-pink);
}
.btn-ghost {
    border-color: var(--border-color);
    color: var(--text-secondary);
}
.btn-ghost:hover {
    border-color: var(--text-secondary);
    background: rgba(255,255,255,0.02);
    box-shadow: none;
    text-shadow: none;
    color: var(--text-primary);
}
.btn-warn {
    border-color: var(--neon-yellow);
    color: var(--neon-yellow);
}
.btn-warn:hover {
    background: rgba(255,232,0,0.08);
    box-shadow: 0 0 16px rgba(255,232,0,0.3);
    text-shadow: 0 0 6px var(--neon-yellow);
}
.btn:disabled, .btn[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* ============== Forms ============== */
.form-card {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 28px;
    border-radius: 6px;
    margin-top: 24px;
    position: relative;
}
.form-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--neon-cyan), transparent);
}

.form-row { margin-bottom: 16px; }
.form-row label {
    display: block;
    color: var(--text-secondary);
    font-size: 11px;
    letter-spacing: 2px;
    margin-bottom: 6px;
    text-transform: uppercase;
    font-family: monospace;
}
.form-row label::before { content: "> "; color: var(--neon-cyan); }

.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="password"],
.form-row textarea,
.form-row select,
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: inherit;
    font-size: 13px;
    transition: all 0.2s;
}
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus,
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 8px rgba(0,240,255,0.25);
}
.form-row textarea {
    min-height: 180px;
    font-family: monospace;
    resize: vertical;
}
.form-help {
    color: var(--text-muted);
    font-size: 11px;
    margin-top: 6px;
    font-family: monospace;
    letter-spacing: 0.5px;
}

.modal-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(92vw, 440px);
    max-height: min(86vh, 520px);
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-primary);
    overflow: visible;
}
.modal-dialog::backdrop {
    background: rgba(3, 7, 18, 0.72);
}
.modal-box {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: 6px;
    padding: 24px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}
.modal-inline-error {
    margin-top: 8px;
    padding: 9px 11px;
    border-left: 3px solid var(--neon-pink);
    background: rgba(255,43,214,0.06);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    letter-spacing: 0.5px;
}
.modal-inline-error::before {
    content: "// ";
    color: var(--text-muted);
}

/* ============== Flash ============== */
.flash-list { margin: 16px 0; }
.flash {
    padding: 11px 14px;
    border-radius: 4px;
    margin-bottom: 8px;
    border-left: 3px solid var(--neon-cyan);
    background: rgba(0,240,255,0.06);
    color: var(--text-primary);
    font-size: 13px;
    font-family: monospace;
    letter-spacing: 0.5px;
}
.flash.error { border-color: var(--neon-pink); background: rgba(255,43,214,0.06); }
.flash.success { border-color: var(--neon-green); background: rgba(26,255,156,0.06); }
.flash::before { content: "// "; color: var(--text-muted); margin-right: 6px; }

/* ============== Tables ============== */
.table-wrap {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: 6px;
    overflow: auto;
    margin-top: 16px;
}
table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
table.data th, table.data td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
table.data th {
    background: rgba(0,240,255,0.04);
    color: var(--neon-cyan);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    position: sticky;
    top: 0;
    font-family: monospace;
}
table.data tr:hover td { background: rgba(0,240,255,0.025); }
table.data td.code { font-family: monospace; color: var(--neon-cyan); }
table.data td.muted { color: var(--text-muted); }
table.data td a {
    color: var(--neon-cyan);
    border-bottom: 1px dotted var(--neon-cyan);
}
table.data .select-col {
    width: 42px;
    text-align: center;
}
table.data input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--neon-cyan);
    cursor: pointer;
}

.bulk-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin: -4px 0 12px;
}

.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: 1px solid var(--border-color);
    font-family: monospace;
}
.status-unpaid { color: var(--text-secondary); border-color: var(--text-secondary); }
.status-paid { color: var(--neon-yellow); border-color: var(--neon-yellow); }
.status-delivered { color: var(--neon-green); border-color: rgba(26,255,156,0.5); }
.status-paid_no_stock { color: var(--neon-pink); border-color: rgba(255,43,214,0.5); }
.status-unused { color: var(--neon-green); border-color: rgba(26,255,156,0.5); }
.status-sold { color: var(--text-muted); border-color: var(--border-color); }

/* ============== Footer ============== */
.site-footer {
    margin-top: 80px;
    padding: 24px 0 28px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 11px;
    text-align: center;
    letter-spacing: 1.5px;
    font-family: monospace;
    background: linear-gradient(0deg, rgba(15,20,38,0.4), transparent);
}
.site-footer .copyright {
    margin-top: 8px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}
.site-footer .copyright a {
    color: var(--text-secondary);
    border-bottom: 1px dotted var(--text-muted);
}
.site-footer .copyright a:hover {
    color: var(--neon-cyan);
    border-bottom-color: var(--neon-cyan);
    text-shadow: none;
}

/* admin 内嵌页脚: 跟随主区域底部, 内容少时也留在底部 */
.admin-footer {
    margin-top: 60px;
    padding: 20px 0 4px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 11px;
    text-align: center;
    letter-spacing: 1.5px;
    font-family: monospace;
}
.admin-footer a {
    color: var(--text-secondary);
    border-bottom: 1px dotted var(--text-muted);
}
.admin-footer a:hover {
    color: var(--neon-cyan);
    border-bottom-color: var(--neon-cyan);
    text-shadow: none;
}
/* admin 主区域 sticky footer */
.admin-main {
    display: flex;
    flex-direction: column;
}
.admin-main > .admin-footer {
    margin-top: auto;
}

/* 登录页页脚 */
.login-shell { flex-direction: column; gap: 24px; }
.login-copyright {
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 1.5px;
    font-family: monospace;
    text-align: center;
}
.login-copyright a {
    color: var(--text-secondary);
    border-bottom: 1px dotted var(--text-muted);
}
.login-copyright a:hover {
    color: var(--neon-cyan);
    border-bottom-color: var(--neon-cyan);
    text-shadow: none;
}

/* ============== Pay page ============== */
.pay-card {
    text-align: center;
    padding: 60px 40px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: 6px;
    margin-top: 40px;
    position: relative;
    overflow: hidden;
}
.pay-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
}
.pay-card h2 {
    font-family: monospace;
    color: var(--neon-cyan);
    letter-spacing: 4px;
    margin-bottom: 12px;
    font-size: 18px;
}
.pay-card .blink {
    color: var(--neon-cyan);
    font-family: monospace;
    letter-spacing: 4px;
    margin: 16px 0 24px;
    animation: blink 1s steps(2,start) infinite;
}
@keyframes blink { to { opacity: 0; } }
.pay-card .order-no {
    color: var(--text-secondary);
    font-family: monospace;
    margin: 8px 0;
    letter-spacing: 1px;
}
.pay-card .order-no strong {
    color: var(--neon-cyan);
}
.pay-card .price-tag {
    color: var(--neon-pink);
    font-size: 32px;
    font-family: monospace;
    margin: 16px 0;
    text-shadow: 0 0 8px rgba(255,43,214,0.4);
}

/* ============== Card-code highlight ============== */
.card-code {
    display: block;
    padding: 18px;
    border: 1px dashed var(--neon-cyan);
    border-radius: 4px;
    background: rgba(0,240,255,0.06);
    font-family: monospace;
    font-size: 16px;
    color: var(--neon-cyan);
    text-align: center;
    letter-spacing: 1px;
    margin: 16px 0;
    word-break: break-all;
    text-shadow: 0 0 4px rgba(0,240,255,0.4);
}

/* ============== Admin layout ============== */
.admin-shell {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}
.admin-side {
    width: 220px;
    border-right: 1px solid var(--border-color);
    background: rgba(10,13,24,0.95);
    padding: 20px 12px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.admin-side .brand {
    color: var(--neon-cyan);
    font-weight: 700;
    letter-spacing: 2.5px;
    font-size: 13px;
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
    font-family: monospace;
    text-shadow: 0 0 8px rgba(0,240,255,0.4);
}
.admin-side .brand small {
    display: block;
    color: var(--text-muted);
    font-size: 9px;
    letter-spacing: 2px;
    margin-top: 2px;
    text-shadow: none;
}
.admin-side a {
    display: block;
    padding: 9px 12px;
    color: var(--text-secondary);
    border-radius: 3px;
    margin-bottom: 4px;
    font-size: 12px;
    letter-spacing: 1.5px;
    border-left: 2px solid transparent;
    text-transform: uppercase;
    font-family: monospace;
}
.admin-side a:hover, .admin-side a.active {
    color: var(--neon-cyan);
    border-left-color: var(--neon-cyan);
    background: rgba(0,240,255,0.05);
    text-shadow: none;
}
.admin-side .logout {
    margin-top: 30px;
    color: var(--neon-pink);
}
.admin-side .logout:hover {
    color: var(--neon-pink);
    border-left-color: var(--neon-pink);
    background: rgba(255,43,214,0.06);
}

.admin-main {
    flex: 1;
    padding: 24px 28px;
    min-width: 0;
}
.admin-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}
.admin-topbar h1 {
    font-size: 18px;
    letter-spacing: 2px;
    color: var(--text-primary);
    font-family: monospace;
}
.admin-topbar h1::before {
    content: "▌ ";
    color: var(--neon-cyan);
}
.admin-topbar .who {
    color: var(--text-muted);
    font-size: 12px;
    font-family: monospace;
    letter-spacing: 1px;
}
.admin-topbar .who strong { color: var(--neon-cyan); }

/* ============== Dashboard ============== */
.dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}
.dash-card {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 20px;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}
.dash-card::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--neon-cyan), transparent);
}
.dash-card .label {
    color: var(--text-secondary);
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: monospace;
}
.dash-card .value {
    font-family: monospace;
    color: var(--neon-cyan);
    font-size: 30px;
    text-shadow: 0 0 8px rgba(0,240,255,0.4);
    margin-top: 8px;
    line-height: 1.2;
}
.dash-card.pink .value { color: var(--neon-pink); text-shadow: 0 0 8px rgba(255,43,214,0.4); }
.dash-card.green .value { color: var(--neon-green); text-shadow: 0 0 8px rgba(26,255,156,0.4); }
.dash-card.yellow .value { color: var(--neon-yellow); text-shadow: 0 0 8px rgba(255,232,0,0.4); }
.dash-card.purple .value { color: var(--neon-purple); text-shadow: 0 0 8px rgba(179,71,255,0.4); }

.stock-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
    margin-top: 16px;
}
.stock-card {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 16px 18px;
    border-radius: 6px;
}
.stock-card .name {
    color: var(--text-primary);
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.stock-card .pid {
    font-family: monospace;
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
}
.stock-card .nums {
    margin-top: 12px;
    display: flex;
    gap: 16px;
    font-family: monospace;
    font-size: 12px;
}
.stock-card .nums .stock { color: var(--neon-green); }
.stock-card .nums .sold { color: var(--text-muted); }
.stock-card .nums b {
    color: var(--text-primary);
    margin-left: 4px;
}

/* ============== Filter bar ============== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
}
.filter-bar select, .filter-bar input {
    width: auto;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 10px;
    border-radius: 3px;
    font-family: inherit;
    font-size: 12px;
    min-width: 140px;
}

/* ============== Login ============== */
.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 20px;
}
.login-card {
    width: 100%;
    max-width: 380px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 36px 32px;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}
.login-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
}
.login-card h1 {
    font-size: 16px;
    letter-spacing: 4px;
    color: var(--neon-cyan);
    text-align: center;
    margin-bottom: 4px;
    font-family: monospace;
    text-shadow: 0 0 8px rgba(0,240,255,0.4);
}
.login-card .sub {
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 2px;
    margin-bottom: 24px;
    font-family: monospace;
}

/* ============== Detail grid ============== */
.detail-grid {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 20px 24px;
    border-radius: 6px;
    margin-top: 16px;
}
.detail-grid dt {
    color: var(--text-secondary);
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-family: monospace;
    padding-top: 4px;
}
.detail-grid dd {
    color: var(--text-primary);
    font-family: monospace;
    word-break: break-all;
    font-size: 13px;
    padding-top: 4px;
}

/* ============== Misc ============== */
.muted { color: var(--text-muted); }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.checkout-summary {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 20px 24px;
    border-radius: 6px;
    margin-top: 24px;
}
.checkout-summary .name {
    font-size: 16px;
    color: var(--neon-cyan);
    letter-spacing: 1.5px;
    margin-bottom: 10px;
}
.checkout-summary .row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    color: var(--text-secondary);
    font-family: monospace;
    font-size: 12px;
}
.checkout-summary .row b { color: var(--text-primary); }
.checkout-summary .total {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    color: var(--neon-pink);
    font-size: 22px;
    font-family: monospace;
    text-align: right;
}

.error-shell {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.error-shell .code {
    color: var(--neon-pink);
    font-size: 80px;
    font-family: monospace;
    text-shadow: 0 0 16px rgba(255,43,214,0.5);
    line-height: 1;
}
.error-shell .msg {
    color: var(--text-secondary);
    font-family: monospace;
    letter-spacing: 2px;
    margin: 20px 0 30px;
}

pre.log-raw {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 11px;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
}

/* ============== Mobile ============== */
@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .hero { padding: 24px 18px; margin-top: 20px; }
    .hero h1 { font-size: 22px; }
    .nav a { padding: 6px 8px; font-size: 10px; letter-spacing: 0.5px; }
    .logo-tag { display: none; }

    .admin-shell { flex-direction: column; }
    .admin-side {
        width: 100%;
        height: auto;
        position: relative;
        padding: 12px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
        align-items: center;
    }
    .admin-side .brand { width: 100%; margin-bottom: 8px; }
    .admin-side a { flex: 1 1 auto; margin-bottom: 0; padding: 6px 10px; font-size: 11px; }
    .admin-side .logout { margin-top: 0; }
    .admin-main { padding: 16px; }

    .detail-grid { grid-template-columns: 1fr; gap: 4px; }
    .detail-grid dt { padding-top: 8px; border-top: 1px dashed var(--border-color); }
    .pay-card { padding: 40px 20px; }
    .pay-card .price-tag { font-size: 24px; }
}