:root {
    --bg-start: #0a1023;
    --bg-end: #1a2749;
    --glass-bg: rgba(18, 27, 52, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --text-soft: #c7d3f0;
    --accent: #7c9cff;
}

body {
    min-height: 100vh;
    background: radial-gradient(circle at top left, #253f82, transparent 45%), linear-gradient(135deg, var(--bg-start), var(--bg-end));
    font-family: "Inter", "Segoe UI", sans-serif;
}

.page-wrap { min-height: 100vh; }
.hero-subtitle { color: var(--text-soft); max-width: 680px; font-size: 1.1rem; }
.brand-pill {
    display: inline-block; padding: 0.4rem 0.9rem; border-radius: 999px;
    color: #e9eeff; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255,255,255,0.15);
}

.chat-panel {
    max-width: 840px; border-radius: 24px; padding: 1.25rem;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    box-shadow: 0 26px 60px rgba(0,0,0,0.35); backdrop-filter: blur(14px);
}

.panel-header { padding: 0.75rem; }
.chat-log {
    height: 390px; overflow-y: auto; padding: 1rem; border-radius: 18px;
    background: rgba(5, 10, 24, 0.55); border: 1px solid rgba(255,255,255,0.06);
}

.message { margin-bottom: 1rem; display: flex; }
.message.user { justify-content: flex-end; }
.bubble {
    max-width: 88%; padding: 0.8rem 1rem; border-radius: 16px;
    color: #eef3ff; line-height: 1.4;
}
.message.assistant .bubble { background: rgba(115, 142, 255, 0.2); border: 1px solid rgba(125, 157, 255, 0.35); }
.message.user .bubble { background: rgba(19, 209, 172, 0.22); border: 1px solid rgba(60, 220, 186, 0.35); }

.answer-chips { padding-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.answer-chip {
    background: rgba(255,255,255,0.08); color: #f4f7ff; border: 1px solid rgba(255,255,255,0.16);
    border-radius: 999px; padding: 0.5rem 1rem; cursor: pointer;
}
.answer-chip:hover { background: rgba(124, 156, 255, 0.28); }

.btn-gradient {
    background: linear-gradient(90deg, #7998ff, #5ed8dd); border: 0; color: #081025; font-weight: 700;
}

.recommendation-card {
    border-radius: 18px; padding: 1rem; margin-top: 0.8rem;
    background: linear-gradient(155deg, rgba(125,157,255,0.2), rgba(84,224,198,0.18));
    border: 1px solid rgba(255,255,255,0.2);
}

.metric-badge, .reason-badge {
    display: inline-block; margin: 0.15rem 0.25rem 0.15rem 0; padding: 0.3rem 0.55rem;
    border-radius: 999px; font-size: 0.8rem; color: #f0f5ff;
    background: rgba(0,0,0,0.25); border: 1px solid rgba(255,255,255,0.15);
}

.alt-card {
    border-radius: 14px; padding: 0.75rem; margin-top: 0.6rem;
    border: 1px solid rgba(255,255,255,0.14); background: rgba(7, 14, 31, 0.45);
}

@media (max-width: 768px) {
    .chat-panel { padding: 1rem; }
    .chat-log { height: 320px; }
}