* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-dark: #0f1117;
    --bg-card: #1a1d27;
    --bg-input: #242736;
    --border: #2d3148;
    --text: #e4e4e7;
    --text-dim: #9ca3af;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --red: #ef4444;
    --yellow: #f59e0b;
    --green: #22c55e;
    --cyan: #06b6d4;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    height: 100vh;
    display: flex;
}

/* Sidebar */
.sidebar {
    width: 220px;
    min-width: 220px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 16px 0;
}

.sidebar-logo {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}

.sidebar-logo h1 {
    font-size: 18px;
    color: var(--accent);
    font-weight: 700;
}

.sidebar-logo .subtitle {
    font-size: 11px;
    color: var(--text-dim);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-dim);
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover { background: var(--bg-input); color: var(--text); }
.nav-item.active { color: var(--accent); border-left-color: var(--accent); background: rgba(99,102,241,0.08); }
.nav-item .icon { margin-right: 10px; font-size: 16px; width: 20px; text-align: center; }

/* Main content */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.page { display: none; flex: 1; flex-direction: column; overflow: hidden; }
.page.active { display: flex; }

.page-header {
    padding: 20px 28px 12px;
    border-bottom: 1px solid var(--border);
}

.page-header h2 { font-size: 20px; font-weight: 600; }
.page-header p { font-size: 13px; color: var(--text-dim); margin-top: 4px; }

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px 28px;
}

/* Dashboard cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

.stat-card .label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.stat-card .value.accent { color: var(--accent); }
.stat-card .value.red { color: var(--red); }
.stat-card .value.green { color: var(--green); }

/* Chat */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 28px;
}

.chat-message {
    max-width: 80%;
    margin-bottom: 16px;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.chat-message.user {
    background: var(--accent);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.chat-message.assistant {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.chat-message.system {
    background: rgba(99,102,241,0.1);
    border: 1px solid var(--accent);
    margin: 0 auto 16px;
    max-width: 90%;
    text-align: center;
    font-size: 13px;
    color: var(--text-dim);
}

.chat-input-bar {
    padding: 16px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
}

.chat-input-bar textarea {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text);
    font-size: 14px;
    resize: none;
    outline: none;
    font-family: inherit;
    min-height: 48px;
    max-height: 160px;
}

.chat-input-bar textarea:focus { border-color: var(--accent); }

.chat-input-bar button {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
}

.chat-input-bar button:hover { background: var(--accent-hover); }
.chat-input-bar button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    text-align: left;
    padding: 10px 12px;
    background: var(--bg-card);
    border-bottom: 2px solid var(--border);
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.data-table tr:hover td { background: rgba(99,102,241,0.04); }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge.bank_statement { background: rgba(6,182,212,0.15); color: var(--cyan); }
.badge.invoice { background: rgba(34,197,94,0.15); color: var(--green); }
.badge.operating_agreement { background: rgba(99,102,241,0.15); color: var(--accent); }
.badge.financial_ledger { background: rgba(245,158,11,0.15); color: var(--yellow); }
.badge.unknown { background: rgba(156,163,175,0.15); color: var(--text-dim); }
.badge.flagged { background: rgba(239,68,68,0.15); color: var(--red); }
.badge.person { background: rgba(6,182,212,0.15); color: var(--cyan); }
.badge.llc { background: rgba(99,102,241,0.15); color: var(--accent); }
.badge.management_company { background: rgba(245,158,11,0.15); color: var(--yellow); }
.badge.lender { background: rgba(239,68,68,0.15); color: var(--red); }

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    transition: all 0.15s;
}

.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.primary:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Settings form */
.settings-group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

.settings-group h3 { font-size: 15px; margin-bottom: 12px; }

.settings-group label {
    display: block;
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 6px;
}

.settings-group input, .settings-group select {
    width: 100%;
    max-width: 500px;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 14px;
    outline: none;
}

.settings-group input:focus, .settings-group select:focus { border-color: var(--accent); }

/* Status indicator */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}
.status-dot.green { background: var(--green); }
.status-dot.red { background: var(--red); }
.status-dot.yellow { background: var(--yellow); }

/* Filter bar */
.filter-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-bar select, .filter-bar input {
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 13px;
    outline: none;
}

/* Dropdown — use light background for Windows Chrome/Edge compatibility */
select {
    background: #ffffff !important;
    color: #1a1a2e !important;
    border: 1px solid #3d4263 !important;
    -webkit-appearance: auto;
}
select option {
    background: #ffffff;
    color: #1a1a2e;
    padding: 6px 8px;
}
select option:checked {
    background: #4f46e5;
    color: #ffffff;
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }