:root {
    --bg: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border: rgba(255, 255, 255, 0.1);
    --text: #f8fafc;
    --text-muted: #94a3b8;
    
    --buy: #10b981;
    --sell: #ef4444;
    --skip: #cbd5e1;
    --accent: #3b82f6;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 2rem;
    background-image: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 400px),
                      radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.1), transparent 400px);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-muted);
}

.search-section {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

input {
    flex: 1;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.5);
    color: white;
    font-size: 1.1rem;
    outline: none;
    backdrop-filter: blur(10px);
}

input:focus {
    border-color: var(--accent);
}

button {
    padding: 1rem 2rem;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, var(--accent), #2563eb);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.hidden {
    display: none !important;
}

/* Loading */
#loadingSection {
    text-align: center;
    padding: 4rem 0;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem auto;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Results */
.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}
.result-header h2 { font-size: 2rem; }
.result-header .price { font-size: 1.5rem; font-weight: 300; color: #a78bfa; }

/* Grid */
.agents-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.agent-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.agent-card-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.agent-card-header:hover {
    background: rgba(255,255,255,0.05);
}

.agent-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 800;
    letter-spacing: 1px;
}

.badge.buy { background: rgba(16, 185, 129, 0.2); color: var(--buy); border: 1px solid var(--buy); }
.badge.sell { background: rgba(239, 68, 68, 0.2); color: var(--sell); border: 1px solid var(--sell); }
.badge.skip { background: rgba(203, 213, 225, 0.2); color: var(--skip); border: 1px solid var(--skip); }

.agent-card-body {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.agent-card.expanded .agent-card-body {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.math-section, .reasoning-section {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
}
.reasoning-section p {
    color: #e2e8f0;
    line-height: 1.6;
}
.math-section code {
    color: #93c5fd;
    font-family: monospace;
    font-size: 0.95rem;
}