:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6C63FF;
    --accent-hover: #5b54e6;
    --green: #22c55e;
    --green-bg: #065f46;
    --amber: #f59e0b;
    --amber-bg: #78350f;
    --red: #ef4444;
    --red-bg: #7f1d1d;
    --blue: #38bdf8;
    --border: #334155;
    --sidebar-w: 240px;
    --topbar-h: 56px;
    --radius: 10px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; }

.layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; grid-template-rows: var(--topbar-h) 1fr; min-height: 100vh; }

.topbar {
    grid-column: 1 / -1;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}
.topbar-logo { font-weight: 700; font-size: 1.1rem; color: var(--accent); letter-spacing: -0.01em; }
.topbar-logo span { color: var(--text-secondary); font-weight: 400; font-size: 0.85rem; margin-left: 8px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-user { color: var(--text-secondary); font-size: 0.85rem; }
.btn-logout {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.15s;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 16px 0;
    overflow-y: auto;
}
.sidebar-nav { list-style: none; }
.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.sidebar-nav li a:hover { color: var(--text-primary); background: rgba(255,255,255,0.03); }
.sidebar-nav li a.active { color: var(--accent); border-left-color: var(--accent); background: rgba(108,99,255,0.08); }
.sidebar-nav li a .nav-icon { width: 18px; text-align: center; font-size: 0.9rem; }
.sidebar-section { padding: 20px 20px 6px; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); font-weight: 600; }

.main-content { padding: 24px; overflow-y: auto; }

.page-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.page-subtitle { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 24px; }

.usage-widget {
    background: linear-gradient(135deg, var(--bg-secondary), #1a1a2e);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}
.usage-total { font-size: 2rem; font-weight: 700; color: var(--accent); }
.usage-total small { font-size: 0.85rem; color: var(--text-secondary); font-weight: 400; }
.usage-label { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 12px; }
.usage-breakdown { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; }
.usage-item { background: var(--bg-primary); border-radius: 8px; padding: 10px 16px; min-width: 140px; }
.usage-item-product { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 2px; }
.usage-item-cost { font-size: 1.1rem; font-weight: 600; }
.usage-disclaimer { font-size: 0.72rem; color: var(--text-muted); margin-top: 12px; font-style: italic; }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.product-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    transition: all 0.2s;
    position: relative;
}
.product-card.active { cursor: pointer; }
.product-card.active:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(108,99,255,0.15); }
.product-card.coming-soon { opacity: 0.55; }
.product-name { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.product-desc { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.4; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 0.68rem; font-weight: 600; }
.badge-green { background: var(--green-bg); color: #6ee7b7; }
.badge-amber { background: var(--amber-bg); color: #fcd34d; }
.badge-red { background: var(--red-bg); color: #fca5a5; }
.badge-gray { background: var(--bg-tertiary); color: var(--text-secondary); }
.badge-blue { background: #1e40af; color: #93c5fd; }

.card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card-title { font-weight: 600; font-size: 1rem; margin-bottom: 12px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-secondary:hover { background: #475569; }
.btn-danger { background: var(--red-bg); color: #fca5a5; }
.btn-danger:hover { background: #991b1b; }
.btn-sm { padding: 5px 10px; font-size: 0.75rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th { background: var(--bg-primary); color: var(--text-secondary); text-align: left; padding: 8px 12px; font-weight: 600; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.03em; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
tr:hover { background: rgba(255,255,255,0.02); }

.banner { padding: 12px 16px; border-radius: 8px; font-size: 0.85rem; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.banner-red { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.banner-amber { background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: #fcd34d; }
.banner-green { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3); color: #6ee7b7; }

.tabs { display: flex; gap: 2px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab {
    padding: 8px 16px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.empty-state { text-align: center; padding: 40px; color: var(--text-muted); font-size: 0.88rem; }

.key-status-active { color: var(--green); }
.key-status-expired { color: var(--red); }
.key-status-testing { color: var(--amber); }

.file-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.file-info { display: flex; align-items: center; gap: 10px; }
.file-name { font-weight: 500; font-size: 0.88rem; }
.file-meta { font-size: 0.75rem; color: var(--text-muted); }
.file-actions { display: flex; gap: 6px; }

.billing-plan { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.billing-price { font-size: 0.88rem; color: var(--text-secondary); }
.billing-renewal { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }

.login-container {
    max-width: 400px;
    margin: 80px auto;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.login-title { font-size: 1.3rem; font-weight: 700; text-align: center; margin-bottom: 8px; }
.login-subtitle { font-size: 0.85rem; color: var(--text-secondary); text-align: center; margin-bottom: 24px; }
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 4px; font-weight: 500; }
.form-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }

.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline-block; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.hamburger { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.4rem; cursor: pointer; padding: 4px 8px; }

@media (max-width: 768px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { display: none; position: fixed; top: var(--topbar-h); left: 0; bottom: 0; width: var(--sidebar-w); z-index: 20; }
    .sidebar.open { display: block; }
    .hamburger { display: block; }
    .products-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

@media (max-width: 480px) {
    .main-content { padding: 14px; }
    .products-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .product-card { padding: 12px; }
    .usage-widget { padding: 14px; }
    .usage-total { font-size: 1.5rem; }
}