:root {
    --bg-main: #f3f4f6;
    --bg-surface: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --up-color: #059669;
    --down-color: #dc2626;
    --danger: #ef4444;
}

[data-theme="dark"] {
    --bg-main: #0a0a0a;
    --bg-surface: #141414;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --border-color: #262626;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --up-color: #10b981;
    --down-color: #ef4444;
    --danger: #ef4444;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }
body { background: var(--bg-main); color: var(--text-primary); transition: 0.3s ease; display: flex; flex-direction: column; min-height: 100vh; overflow-x: hidden; }
h1, h2, h3, .number { font-family: 'Space Grotesk', sans-serif; }

/* Navbar Premium */
.top-nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 32px; background: var(--bg-surface); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 10; }
.logo { font-size: 22px; font-weight: 700; }
.logo .accent { color: var(--accent); }

.search-wrapper { flex: 1; max-width: 500px; margin: 0 40px; position: relative; display: flex; align-items: center; }
.search-icon { position: absolute; left: 16px; width: 18px; color: var(--text-secondary); }
.search-wrapper input { width: 100%; padding: 12px 16px 12px 45px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-main); color: var(--text-primary); font-size: 14px; outline: none; transition: 0.2s; }
.search-wrapper input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2); }

.nav-actions { display: flex; align-items: center; gap: 20px; }
.market-clock { font-family: 'Space Grotesk', sans-serif; font-size: 14px; font-weight: 600; color: var(--text-secondary); letter-spacing: 1px; }
.icon-btn { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-primary); }
.primary-btn { background: var(--accent); color: white; border: none; padding: 10px 20px; border-radius: 8px; font-weight: 600; cursor: pointer; transition: 0.2s; }
.primary-btn:hover { background: var(--accent-hover); }

/* Tabs */
.category-tabs { display: flex; gap: 15px; padding: 15px 32px; background: var(--bg-surface); border-bottom: 1px solid var(--border-color); overflow-x: auto; scrollbar-width: none; }
.tab-btn { padding: 8px 16px; border-radius: 6px; border: 1px solid transparent; background: transparent; color: var(--text-secondary); cursor: pointer; font-weight: 500; font-size: 14px; white-space: nowrap; transition: 0.2s; }
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { background: var(--bg-main); color: var(--text-primary); border-color: var(--border-color); font-weight: 600; }

/* Dashboard Layout */
.dashboard-layout { padding: 32px; max-width: 1600px; margin: 0 auto; width: 100%; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.section-header h2 { font-size: 22px; }

/* Input Watchlist */
.add-symbol-box { display: flex; gap: 8px; }
.add-symbol-box input { padding: 8px 12px; border-radius: 6px; border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-primary); outline: none; text-transform: uppercase; width: 200px;}
.add-symbol-box button { background: var(--accent); color: white; border: none; padding: 0 16px; border-radius: 6px; cursor: pointer; font-weight: 600; }

/* Grid Market */
.market-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.stock-card { background: var(--bg-surface); border: 1px solid var(--border-color); padding: 24px; border-radius: 12px; transition: 0.2s; display: flex; flex-direction: column; position: relative; }
.stock-card:hover { border-color: var(--text-secondary); transform: translateY(-3px); }
.del-btn { position: absolute; top: 12px; right: 12px; background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 14px; display: none; }
.stock-card:hover .del-btn { display: block; }
.stock-card .symbol { font-weight: 600; font-size: 16px; color: var(--text-secondary); }
.stock-card .price { font-family: 'Space Grotesk', sans-serif; font-size: 32px; font-weight: 700; margin: 10px 0; }
.stock-card .change { font-size: 14px; font-weight: 600; padding: 4px 8px; border-radius: 4px; display: inline-block; width: fit-content; }
.change.up { background: rgba(16, 185, 129, 0.1); color: var(--up-color); }
.change.down { background: rgba(239, 68, 68, 0.1); color: var(--down-color); }

.mt-40 { margin-top: 40px; margin-bottom: 20px; font-size: 20px;}
.news-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.news-item { padding: 20px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 12px; text-decoration: none; color: var(--text-primary); transition: 0.2s; display: flex; flex-direction: column; justify-content: space-between;}
.news-item:hover { background: var(--bg-main); border-color: var(--accent); }
.news-item h4 { font-size: 15px; margin-bottom: 12px; line-height: 1.5; }
.news-item .source { font-size: 12px; color: var(--accent); font-weight: 600;}

/* Loading State */
.loading-state { grid-column: 1 / -1; padding: 40px; color: var(--text-secondary); font-style: italic; }

/* ========================================= */
/* AI MODAL POPUP (ENTERPRISE STYLE)         */
/* ========================================= */
.ai-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(5px); z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; opacity: 0; transition: opacity 0.3s; }
.ai-overlay.active { display: flex; opacity: 1; }

.ai-window { width: 100%; max-width: 900px; height: 80vh; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; display: flex; flex-direction: column; overflow: hidden; transform: scale(0.95); transition: transform 0.3s; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); }
.ai-overlay.active .ai-window { transform: scale(1); }

.ai-header { padding: 20px 24px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: var(--bg-main); }
.ai-header h3 { font-size: 18px; display: flex; align-items: center; gap: 8px;}
.ai-header-actions { display: flex; gap: 12px; align-items: center; }

.sm-btn { padding: 6px 12px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 6px; color: var(--text-primary); cursor: pointer; font-size: 12px; font-weight: 600; }
.sm-btn-danger { padding: 4px 10px; background: rgba(239, 68, 68, 0.1); border: 1px solid var(--danger); border-radius: 6px; color: var(--danger); cursor: pointer; font-size: 11px; font-weight: 600; transition: 0.2s;}
.sm-btn-danger:hover { background: var(--danger); color: white; }

.ai-body { display: flex; flex: 1; overflow: hidden; }

/* Riwayat Chat di Kiri */
.ai-history { width: 250px; background: var(--bg-main); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; }
.history-head { padding: 15px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.text-micro { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); font-weight: 600; }
.ai-history ul { list-style: none; padding: 10px; overflow-y: auto; flex: 1; }
.history-item { font-size: 13px; padding: 10px; cursor: pointer; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; border-radius: 6px; margin-bottom: 4px;}
.history-item:hover { background: var(--border-color); color: var(--text-primary); }

/* Area Chat di Kanan */
.ai-chat-container { flex: 1; display: flex; flex-direction: column; background: var(--bg-surface); }
.ai-chat-room { flex: 1; padding: 24px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.chat-bubble { max-width: 80%; padding: 14px 18px; border-radius: 12px; font-size: 14px; line-height: 1.6; }
.chat-bubble.ai { background: var(--bg-main); border: 1px solid var(--border-color); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-bubble.user { background: var(--accent); color: white; align-self: flex-end; border-bottom-right-radius: 4px; }

.ai-input-box { padding: 20px; border-top: 1px solid var(--border-color); display: flex; gap: 12px; background: var(--bg-main);}
.ai-input-box input { flex: 1; padding: 14px 20px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-primary); outline: none; font-size: 14px;}
.ai-input-box input:focus { border-color: var(--accent); }
.ai-input-box button { background: var(--accent); color: white; border: none; padding: 0 24px; border-radius: 8px; cursor: pointer; font-weight: 600; transition: 0.2s;}
.ai-input-box button:hover { background: var(--accent-hover); }

/* Responsive */
@media (max-width: 1024px) {
    .dashboard-layout { padding: 20px; }
    .search-wrapper { display: none; /* Sembunyikan search panjang di HP/Tablet kecil */ }
    .ai-window { height: 90vh; }
    .ai-history { display: none; /* Sembunyikan riwayat di HP agar chat lega */ }
}