:root {
    --bg-base: #0a0a0f;
    --bg-elevated: rgba(28, 28, 38, 0.72);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-hover: rgba(255, 255, 255, 0.10);
    --bg-input: rgba(255, 255, 255, 0.05);
    --border-glass: rgba(255, 255, 255, 0.12);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --text-primary: #f5f5f7;
    --text-secondary: rgba(245, 245, 247, 0.65);
    --text-tertiary: rgba(245, 245, 247, 0.40);
    --accent: #0a84ff;
    --accent-hover: #409cff;
    --accent-glow: rgba(10, 132, 255, 0.35);
    --success: #30d158;
    --warning: #ff9f0a;
    --danger: #ff453a;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    --shadow-nav: 0 4px 24px rgba(0, 0, 0, 0.50), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --blur: 24px;
}

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

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-primary);
    background: var(--bg-base);
    -webkit-font-smoothing: antialiased;
    font-size: 14px;
    line-height: 1.5;
}

body {
    background:
        radial-gradient(ellipse 80% 60% at 20% 0%, rgba(10, 132, 255, 0.12), transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 100%, rgba(191, 90, 242, 0.08), transparent 60%),
        var(--bg-base);
    background-attachment: fixed;
    min-height: 100vh;
}

#app { min-height: 100vh; padding: 24px; display: flex; flex-direction: column; align-items: center; }

.view { width: 100%; max-width: 1200px; display: flex; flex-direction: column; align-items: center; gap: 20px; }
.hidden { display: none !important; }

.glass-card {
    background: var(--bg-elevated);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 24px;
    width: 100%;
}

.login-card { max-width: 420px; margin-top: 8vh; }

.title { font-size: 24px; font-weight: 600; text-align: center; margin-bottom: 28px; letter-spacing: -0.5px; }
h2 { font-size: 18px; font-weight: 600; margin-bottom: 16px; letter-spacing: -0.3px; }
h3 { font-size: 14px; font-weight: 500; color: var(--text-secondary); margin-bottom: 8px; }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-group label { font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }

.input, select.input {
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s ease;
    width: 100%;
    outline: none;
}
.input:focus, select.input:focus {
    border-color: var(--accent);
    background: rgba(10, 132, 255, 0.08);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.input::placeholder { color: var(--text-tertiary); }
input[type="file"].input { padding: 8px; cursor: pointer; }
select.input { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23f5f5f7' opacity='0.5'%3E%3Cpath d='M2 4l4 4 4-4z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }

.btn {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 10px 20px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}
.btn:hover { background: var(--bg-glass-hover); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); box-shadow: 0 4px 16px var(--accent-glow); }

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-danger { background: rgba(255, 69, 58, 0.15); border-color: rgba(255, 69, 58, 0.4); color: var(--danger); }
.btn-danger:hover { background: rgba(255, 69, 58, 0.25); }

.error-msg { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 12px; text-align: center; }

.nav-bar {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 14px 24px;
    border-radius: var(--radius-lg);
    position: sticky;
    top: 16px;
    z-index: 100;
}
.glass-nav { background: var(--bg-elevated); backdrop-filter: blur(var(--blur)) saturate(180%); -webkit-backdrop-filter: blur(var(--blur)) saturate(180%); border: 1px solid var(--border-glass); box-shadow: var(--shadow-nav); }
.nav-title { font-size: 16px; font-weight: 600; letter-spacing: -0.3px; }
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-link { padding: 8px 16px; border-radius: var(--radius-sm); color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 500; transition: all 0.2s ease; }
.nav-link:hover { color: var(--text-primary); background: var(--bg-glass); }
.nav-link.active { color: var(--text-primary); background: var(--bg-glass-hover); }

.page { width: 100%; display: flex; flex-direction: column; gap: 20px; }

.filter-row { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.filter-row .input { width: auto; min-width: 160px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th { text-align: left; padding: 10px 12px; color: var(--text-secondary); font-weight: 500; border-bottom: 1px solid var(--border-glass); white-space: nowrap; }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); color: var(--text-primary); vertical-align: middle; }
.data-table tr:hover td { background: var(--bg-glass); }
.data-table .mono { font-family: "SF Mono", "Cascadia Code", Consolas, monospace; font-size: 12px; }
.data-table .actions { display: flex; gap: 6px; }

.status-badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 500; }
.status-unused { background: rgba(255, 159, 10, 0.15); color: var(--warning); }
.status-locked { background: rgba(10, 132, 255, 0.15); color: var(--accent); }
.status-activated { background: rgba(48, 209, 88, 0.15); color: var(--success); }
.status-voided { background: rgba(255, 69, 58, 0.15); color: var(--danger); }
.status-active { background: rgba(48, 209, 88, 0.15); color: var(--success); }
.status-offline { background: rgba(255, 69, 58, 0.15); color: var(--danger); }
.status-success { background: rgba(48, 209, 88, 0.15); color: var(--success); }
.status-failure { background: rgba(255, 69, 58, 0.15); color: var(--danger); }

.pagination { display: flex; gap: 8px; justify-content: center; align-items: center; margin-top: 16px; }
.pagination button { background: var(--bg-glass); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 6px 12px; color: var(--text-primary); cursor: pointer; font-size: 13px; }
.pagination button:hover { background: var(--bg-glass-hover); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { color: var(--text-secondary); font-size: 13px; padding: 0 8px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { text-align: center; }
.stat-value { font-size: 32px; font-weight: 700; letter-spacing: -1px; background: linear-gradient(135deg, var(--text-primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.version-dist { display: flex; flex-direction: column; gap: 10px; }
.version-bar { display: flex; align-items: center; gap: 12px; }
.version-bar .label { width: 120px; font-size: 13px; color: var(--text-secondary); }
.version-bar .bar-track { flex: 1; height: 8px; background: var(--bg-input); border-radius: 4px; overflow: hidden; }
.version-bar .bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-hover)); border-radius: 4px; transition: width 0.4s ease; }
.version-bar .count { width: 60px; text-align: right; font-size: 13px; color: var(--text-primary); font-weight: 500; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.60); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 24px; }
.modal-card { max-width: 560px; max-height: 80vh; overflow-y: auto; position: relative; }
.modal-card .modal-close { position: absolute; top: 16px; right: 16px; }
#modal-content { margin-bottom: 48px; }
#modal-content h3 { margin-bottom: 12px; font-size: 16px; color: var(--text-primary); }
#modal-content .detail-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border-subtle); font-size: 13px; }
#modal-content .detail-row .key { color: var(--text-secondary); }
#modal-content .detail-row .val { color: var(--text-primary); font-family: "SF Mono", "Cascadia Code", Consolas, monospace; max-width: 60%; word-break: break-all; text-align: right; }
#modal-content .copy-area { margin-top: 16px; }
#modal-content .copy-area textarea { width: 100%; min-height: 120px; background: var(--bg-input); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; color: var(--text-primary); font-family: "SF Mono", "Cascadia Code", Consolas, monospace; font-size: 12px; resize: vertical; outline: none; }

.toast { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%); background: var(--bg-elevated); backdrop-filter: blur(var(--blur)); -webkit-backdrop-filter: blur(var(--blur)); border: 1px solid var(--border-glass); border-radius: var(--radius-md); padding: 12px 24px; color: var(--text-primary); font-size: 14px; z-index: 2000; box-shadow: var(--shadow-card); animation: toast-in 0.3s ease; }
.toast.toast-success { border-color: rgba(48, 209, 88, 0.4); }
.toast.toast-error { border-color: rgba(255, 69, 58, 0.4); }
@keyframes toast-in { from { opacity: 0; transform: translateX(-50%) translateY(12px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

.loading { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border-glass); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.empty-row td { text-align: center; color: var(--text-tertiary); padding: 32px; }

@media (max-width: 768px) {
    #app { padding: 12px; }
    .nav-bar { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
    .nav-links { order: 3; width: 100%; flex-wrap: wrap; }
    .form-row { flex-direction: column; }
    .form-row .form-group { min-width: 100%; }
    .data-table { font-size: 12px; }
    .data-table th, .data-table td { padding: 8px 6px; }
}