:root {
    --bg:#0f1217;
    --panel: #121827;
    --panel-2: #0e1422;
    --text: #e6e6e6;
    --muted: #9aa4b2;
    --brand: #00e0ff;
    --brand-2: #00b4cc;
    --danger: #ff4d4d;
    --ok: #30d158;
    --border: #2a3142;
    --card:#171b22;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial;
    overflow-x: hidden;
}

/* Background: gradient + particles */
#bg-particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: .35;
}

.bg-gradient {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: radial-gradient(1200px 800px at 80% -20%, rgba(0, 224, 255, .08), transparent),
    radial-gradient(1000px 700px at 10% 120%, rgba(0, 180, 204, .08), transparent),
    radial-gradient(900px 900px at 50% 20%, rgba(0, 224, 255, .05), transparent);
    animation: floatBg 18s ease-in-out infinite alternate;
}

@keyframes floatBg {
    from {
        transform: translateY(-10px);
    }
    to {
        transform: translateY(10px);
    }
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 22px;
    background: rgba(11, 14, 20, .6);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--border);
}

.topbar .brand {
    color: var(--brand);
    font-weight: 700;
    letter-spacing: .3px;
}

.topbar .meta {
    color: var(--muted);
    font-size: 12px;
}

.container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 18px;
    padding: 18px;
    max-width: 1350px;
    margin: 0 auto;
}

@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 820px) {
    .container {
        grid-template-columns: 1fr;
    }
}

.card {
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .25);
    padding: 16px;
}

.card h2 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--text);
}

.row {
    display: flex;
    gap: 10px;
}

.row > * {
    flex: 1;
}

.toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
}

.inline {
    display: inline-flex;
    gap: 10px;
    align-items: center;
}

.mt-8 {
    margin-top: 8px;
}

.mt-12 {
    margin-top: 12px;
}

.mt-16 {
    margin-top: 16px;
}

input, textarea, select, button {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0d1424;
    color: var(--text);
    font-size: 14px;
}

textarea {
    resize: vertical;
}

button {
    background: linear-gradient(180deg, var(--brand), var(--brand-2));
    color: #001018;
    font-weight: 700;
    border: none;
    cursor: pointer;
}

button.ghost {
    background: transparent;
    color: var(--muted);
    border: 1px dashed var(--border);
}

button.danger {
    background: linear-gradient(180deg, #ff6767, #e84141);
    color: #2b0000;
}

button:disabled {
    opacity: .6;
    cursor: not-allowed;
}

.list {
    display: grid;
    gap: 8px;
}

.assistant-item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0e1730;
}

.assistant-item .name {
    font-weight: 700;
}

.assistant-item .actions {
    display: flex;
    gap: 8px;
}

.chat {
    min-height: 220px;
    max-height: 340px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b1329;
    padding: 10px;
}

.msg {
    margin: 10px 0;
}

.msg .meta {
    color: var(--muted);
    font-size: 12px;
    margin-bottom: 2px;
}

.msg.user .bubble {
    background: #14203e;
}

.msg.ai .bubble {
    background: #082b36;
    border-left: 3px solid var(--brand);
}

.bubble {
    padding: 10px 12px;
    border-radius: 10px;
    white-space: pre-wrap;
}

.panel {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b1329;
    padding: 10px;
    overflow: auto;
}

.pill {
    display: inline-block;
    padding: 2px 8px;
    border: 1px solid var(--border);
    border-radius: 9999px;
    font-size: 12px;
    color: var(--muted);
}

.muted {
    color: var(--muted);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* Scrollbar */
.chat::-webkit-scrollbar, .panel::-webkit-scrollbar {
    width: 10px;
}

.chat::-webkit-scrollbar-thumb, .panel::-webkit-scrollbar-thumb {
    background: #1f2940;
    border-radius: 6px;
}

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 16px 0;
}