:root {
    --bg-color: #050b14;
    --card-bg: #0f172a;
    --accent-green: #22c55e;
    --accent-cyan: #38bdf8;
    --accent-purple: #a855f7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #1e293b;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Roboto, sans-serif; }
body { background-color: var(--bg-color); color: var(--text-main); min-height: 100vh; display: flex; flex-direction: column; }

header {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo { display: flex; align-items: center; gap: 12px; font-size: 1.25rem; font-weight: 700; color: var(--accent-cyan); letter-spacing: 1px; text-decoration: none; }
.logo span { color: var(--text-main); }
.header-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.badge-secure {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.4);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.badge-secure::before {
    content: ''; width: 8px; height: 8px; background-color: var(--accent-green); border-radius: 50%; box-shadow: 0 0 8px var(--accent-green);
}

main { max-width: 1200px; margin: 40px auto; padding: 0 20px; flex: 1; width: 100%; }
main.narrow { max-width: 860px; }
.hero { text-align: center; margin-bottom: 40px; }
.hero h1 {
    font-size: 2.5rem; margin-bottom: 10px;
    background: linear-gradient(to right, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { color: var(--text-muted); font-size: 1.1rem; }

.store-container { display: grid; grid-template-columns: 1fr 320px; gap: 30px; }
@media (max-width: 900px) { .store-container { grid-template-columns: 1fr; } header { padding: 16px 20px; } }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.product-card {
    background-color: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px;
    display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.2s, border-color 0.2s;
}
.product-card:hover { transform: translateY(-4px); border-color: var(--accent-cyan); }
.product-icon { font-size: 2.5rem; margin-bottom: 15px; }
.product-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.product-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 15px; line-height: 1.4; }
.product-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.product-price { font-weight: 700; font-size: 1.1rem; color: var(--accent-cyan); }

.btn {
    background-color: var(--accent-cyan); color: #000; border: none; padding: 8px 16px; border-radius: 6px; font-weight: 600; cursor: pointer; transition: background 0.2s; font-size: 0.95rem;
}
.btn:hover { background-color: #0ea5e9; color: #fff; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }
.btn-link { display: inline-block; text-decoration: none; background: transparent; color: var(--accent-cyan); border: 1px solid var(--border-color); }
.btn-link:hover { background: var(--card-bg); color: var(--text-main); border-color: var(--accent-cyan); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border-color); }
.btn-ghost:hover { background: #1e293b; color: #fff; }
.btn-wide { width: 100%; padding: 12px; margin-top: 8px; }

.cart-sidebar {
    background-color: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 25px; height: fit-content; position: sticky; top: 100px;
}
.cart-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.cart-items { list-style: none; margin-bottom: 20px; max-height: 250px; overflow-y: auto; }
.cart-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 0.9rem; color: var(--text-muted); }
.cart-item span:first-child { color: var(--text-main); max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.remove-item { color: #ef4444; cursor: pointer; font-size: 0.8rem; background: none; border: none; }
.cart-total { display: flex; justify-content: space-between; font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; padding-top: 15px; border-top: 1px solid var(--border-color); }
.btn-checkout { width: 100%; background: linear-gradient(to right, var(--accent-cyan), var(--accent-purple)); color: white; padding: 12px; border-radius: 6px; border: none; font-weight: 600; cursor: pointer; }
.empty-cart { color: var(--text-muted); text-align: center; font-size: 0.9rem; margin: 20px 0; list-style: none; }

footer { text-align: center; padding: 25px; border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: 0.85rem; margin-top: auto; }

.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); backdrop-filter: blur(5px); justify-content: center; align-items: center; z-index: 1000; }
.modal.open { display: flex; }
.modal-content { background-color: var(--card-bg); border: 1px solid var(--border-color); padding: 35px; border-radius: 12px; text-align: center; max-width: 400px; width: 90%; }
.modal-content h3 { color: var(--accent-green); margin-bottom: 15px; font-size: 1.5rem; }
.modal-content p { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }

/* ---- account page ---- */
.panel { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 28px; margin-bottom: 24px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.panel-title { font-size: 1.3rem; font-weight: 600; }
label { display: block; font-size: 0.85rem; color: var(--text-muted); margin: 14px 0 6px; }
input[type="text"], input[type="password"] {
    width: 100%; padding: 11px 12px; background: #0b1220; color: var(--text-main);
    border: 1px solid var(--border-color); border-radius: 6px; font-size: 1rem;
}
input:focus { outline: 2px solid var(--accent-cyan); outline-offset: 1px; border-color: var(--accent-cyan); }
.form-msg { min-height: 1.2em; margin-top: 12px; font-size: 0.9rem; color: var(--text-muted); }
.form-msg.error { color: #f87171; }
.form-msg.ok { color: var(--accent-green); }
.hidden { display: none !important; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 10px 16px; }
.kv dt { color: var(--text-muted); }
.kv dd { color: var(--text-main); word-break: break-word; }
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-color); }
.data-table th { color: var(--text-muted); font-weight: 600; }
.role { padding: 2px 10px; border-radius: 12px; font-size: 0.8rem; background: rgba(56,189,248,0.15); color: var(--accent-cyan); border: 1px solid rgba(56,189,248,0.4); }
.role-admin { background: rgba(168,85,247,0.15); color: var(--accent-purple); border-color: rgba(168,85,247,0.4); }
.hint { color: var(--text-muted); font-size: 0.85rem; margin-top: 16px; line-height: 1.5; }