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

/* ══════════════════════════════════════
   CSS VARIABLES — DARK MODE (default)
══════════════════════════════════════ */
:root {
    --bg:              #0a0a0f;
    --bg-card:         #111118;
    --bg-input:        #16161f;
    --bg-sidebar:      #0d0d14;
    --border:          rgba(124,58,237,0.12);
    --border-hover:    rgba(124,58,237,0.35);
    --text-primary:    #ffffff;
    --text-secondary:  #a78bfa;
    --text-muted:      #6b6b8a;
    --text-label:      #888888;
    --brand:           #7c3aed;
    --brand-hover:     #6d28d9;
    --brand-light:     #a78bfa;
    --scrollbar-track: #0a0a0f;
    --scrollbar-thumb: #6d28d9;
    --table-row-hover: rgba(124,58,237,0.04);
    --table-border:    rgba(255,255,255,0.03);
    --skeleton-from:   rgba(124,58,237,0.05);
    --skeleton-to:     rgba(124,58,237,0.12);
}

/* ══════════════════════════════════════
   CSS VARIABLES — LIGHT MODE
══════════════════════════════════════ */
body.light {
    --bg:              #f8fafc;
    --bg-card:         #ffffff;
    --bg-input:        #f1f5f9;
    --bg-sidebar:      #ffffff;
    --border:          #e2e8f0;
    --border-hover:    rgba(124,58,237,0.4);
    --text-primary:    #0f172a;
    --text-secondary:  #7c3aed;
    --text-muted:      #64748b;
    --text-label:      #64748b;
    --brand:           #7c3aed;
    --brand-hover:     #6d28d9;
    --brand-light:     #a78bfa;
    --scrollbar-track: #f1f5f9;
    --scrollbar-thumb: #cbd5e1;
    --table-row-hover: rgba(124,58,237,0.04);
    --table-border:    #f1f5f9;
    --skeleton-from:   #f1f5f9;
    --skeleton-to:     #e2e8f0;
}

/* ══════════════════════════════════════
   BASE
══════════════════════════════════════ */
body {
    font-family: 'Syne', sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }

/* Dot grid — dark only */
body:not(.light)::before {
    content: '';
    position: fixed; inset: 0;
    background-image: radial-gradient(rgba(124,58,237,0.10) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none; z-index: 0;
}
body:not(.light)::after {
    content: '';
    position: fixed; top: -120px; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(124,58,237,0.08) 0%, transparent 70%);
    pointer-events: none; z-index: 0;
}
.z1 { position: relative; z-index: 1; }

/* ══════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════ */
@keyframes spin    { to { transform: rotate(360deg); } }
@keyframes fadeUp  { 0% { opacity:0; transform:translateY(14px); } 100% { opacity:1; transform:translateY(0); } }
@keyframes blink   { 0%,100% { opacity:1; } 50% { opacity:0.2; } }
@keyframes shimmer { 0% { background-position:200% 0; } 100% { background-position:-200% 0; } }
@keyframes wave    { 0%,100% { transform:scaleY(1); } 50% { transform:scaleY(0.5); } }
@keyframes pulse   {
    0%   { box-shadow: 0 0 0 0 rgba(239,68,68,0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
    100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); }
}

/* ══════════════════════════════════════
   SIDEBAR
══════════════════════════════════════ */
.sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; width: 240px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column; z-index: 100;
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}
.sidebar-logo {
    padding: 24px 20px; font-size: 18px; font-weight: 700;
    color: var(--text-secondary);
    display: flex; align-items: center; gap: 10px;
}
.sidebar-nav { flex: 1; padding: 10px 12px; }
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px; border-radius: 10px;
    color: var(--text-muted);
    font-size: 13px; font-weight: 500; cursor: pointer;
    transition: all 0.18s ease; margin-bottom: 4px;
}
.nav-item svg    { width: 18px; height: 18px; }
.nav-item:hover  { background: rgba(124,58,237,0.08); color: var(--text-secondary); }
.nav-item.active { background: rgba(124,58,237,0.12); color: var(--text-secondary); }
.sidebar-footer  { padding: 16px; border-top: 1px solid var(--border); }
.theme-toggle {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; border-radius: 8px;
    color: var(--text-muted); font-size: 13px; cursor: pointer;
    transition: all 0.18s ease;
}
.theme-toggle:hover { background: rgba(124,58,237,0.08); color: var(--text-secondary); }
.sidebar-overlay   { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99; }

/* ══════════════════════════════════════
   MAIN CONTENT
══════════════════════════════════════ */
.main-content {
    margin-left: 240px; padding: 24px; min-height: 100vh;
    background: var(--bg);
    transition: background 0.3s ease;
}

/* ══════════════════════════════════════
   HEADER
══════════════════════════════════════ */
.header h1            { color: var(--text-primary); }
.header p             { color: var(--text-muted); }
.online-indicator span { color: var(--text-secondary); }

/* ══════════════════════════════════════
   QUERY CARD
══════════════════════════════════════ */
.query-card {
    background: var(--bg-card);
    border-radius: 16px; padding: 20px; margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: background 0.3s ease, border-color 0.3s ease;
}
.query-label { color: var(--text-label) !important; }
.query-input-row { display: flex; gap: 10px; }

#queryInput {
    flex: 1; padding: 11px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px; font-size: 14px;
    color: var(--text-primary);
    font-family: 'Syne', sans-serif;
    outline: none; transition: all 0.2s ease;
}
#queryInput::placeholder { color: var(--text-muted); }
#queryInput:focus {
    border-color: rgba(124,58,237,0.5);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.08);
}

#voiceBtn {
    padding: 11px 13px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px; cursor: pointer;
    color: var(--brand);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.2s ease;
}
#voiceBtn:hover { border-color: var(--border-hover); color: var(--brand-light); }
#voiceBtn.recording {
    background: rgba(239,68,68,0.1) !important;
    border-color: rgba(239,68,68,0.4) !important;
    color: #f87171 !important;
    animation: pulse 1.5s infinite;
}

#submitBtn {
    padding: 11px 26px;
    background: var(--brand-hover);
    color: #ffffff; border: none;
    border-radius: 10px; font-size: 14px;
    font-weight: 600; cursor: pointer;
    font-family: 'Syne', sans-serif;
    white-space: nowrap; flex-shrink: 0;
    transition: background 0.2s ease;
}
#submitBtn:hover    { background: var(--brand); }
#submitBtn:disabled { opacity: 0.55; cursor: not-allowed; }

/* ══════════════════════════════════════
   CHIPS & VOICE
══════════════════════════════════════ */
.examples p { font-size: 11px; color: var(--text-label); margin-bottom: 8px; font-family: 'DM Mono', monospace; text-transform: uppercase; letter-spacing: 0.08em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px; padding: 5px 12px;
    font-size: 11px; font-family: 'DM Mono', monospace;
    color: var(--text-secondary); cursor: pointer;
    transition: all 0.18s ease; white-space: nowrap;
}
.chip:hover {
    background: rgba(124,58,237,0.12);
    border-color: rgba(124,58,237,0.45);
    color: var(--brand-light);
    transform: translateY(-1px);
}

.voice-status { margin-top: 8px; font-size: 12px; color: var(--text-label); min-height: 16px; font-family: 'DM Mono', monospace; }
.voice-waveform { display: none; align-items: center; gap: 3px; height: 24px; margin-left: 8px; }
.voice-waveform.show { display: flex; }
.wave-bar { width: 3px; background: var(--brand-light); border-radius: 2px; animation: wave 0.5s ease-in-out infinite; }
.wave-bar:nth-child(1) { height: 12px; animation-delay: 0.0s; }
.wave-bar:nth-child(2) { height: 18px; animation-delay: 0.1s; }
.wave-bar:nth-child(3) { height: 14px; animation-delay: 0.2s; }
.wave-bar:nth-child(4) { height: 20px; animation-delay: 0.3s; }
.wave-bar:nth-child(5) { height: 16px; animation-delay: 0.4s; }

/* ══════════════════════════════════════
   LOADING & SKELETON
══════════════════════════════════════ */
#loading {
    display: none;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px; padding: 14px 20px; margin-bottom: 16px;
    align-items: center; gap: 12px;
}
#loading p { color: var(--text-primary); font-size: 14px; font-weight: 500; }
.spinner {
    width: 22px; height: 22px;
    border: 2px solid rgba(124,58,237,0.12);
    border-top-color: var(--brand);
    border-radius: 50%;
    animation: spin 0.65s linear infinite; flex-shrink: 0;
}
.skeleton {
    background: linear-gradient(90deg, var(--skeleton-from) 25%, var(--skeleton-to) 50%, var(--skeleton-from) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite; border-radius: 8px;
}
.skeleton-card  { height: 100px; border-radius: 16px; }
.skeleton-table { height: 200px; }

/* ══════════════════════════════════════
   ERROR BOX
══════════════════════════════════════ */
#errorBox {
    display: none;
    background: rgba(239,68,68,0.06);
    border: 1px solid rgba(239,68,68,0.2);
    border-left: 4px solid #ef4444;
    border-radius: 12px; padding: 14px 18px; margin-bottom: 16px;
    color: #fca5a5; font-size: 13px;
    font-family: 'DM Mono', monospace;
}

/* ══════════════════════════════════════
   RESULTS
══════════════════════════════════════ */
#resultsSection { display: none; animation: fadeUp 0.32s ease forwards; }

.summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 20px; }
.summary-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px; padding: 20px;
    display: flex; flex-direction: column; gap: 8px;
    transition: background 0.3s ease, border-color 0.3s ease;
}
.summary-card-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.summary-card-icon.credit  { background: rgba(34,197,94,0.1); }
.summary-card-icon.debit   { background: rgba(239,68,68,0.1); }
.summary-card-icon.balance { background: rgba(59,130,246,0.1); }
.summary-card-icon.count   { background: rgba(168,85,247,0.1); }
.summary-card-value { font-size: 28px; font-weight: 700; color: var(--brand-light); font-family: 'Syne', sans-serif; }
.summary-card-label { font-size: 11px; color: var(--text-muted); font-family: 'DM Mono', monospace; text-transform: uppercase; letter-spacing: 0.08em; }
body.light .summary-card-value { color: var(--brand); }

.stats-bar       { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.stats-bar .badge {
    background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.2);
    color: var(--brand-light); padding: 3px 12px; border-radius: 999px;
    font-size: 11px; font-family: 'DM Mono', monospace;
    display: inline-flex; align-items: center; gap: 6px;
}

.results-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 16px; overflow: hidden; margin-bottom: 12px;
    transition: background 0.3s ease, border-color 0.3s ease;
}
.tabs-header { display: flex; border-bottom: 1px solid var(--border); padding: 12px 16px 0; gap: 4px; }
.tab-btn {
    padding: 8px 18px; font-size: 11px; font-family: 'DM Mono', monospace;
    text-transform: uppercase; letter-spacing: 0.07em;
    border-radius: 8px 8px 0 0; border: 1px solid transparent; border-bottom: none;
    color: var(--text-muted); cursor: pointer; transition: all 0.18s ease; background: transparent;
}
.tab-btn:hover:not(.active) { color: var(--text-secondary); background: rgba(124,58,237,0.04); }
.tab-btn.active             { background: rgba(124,58,237,0.1); border-color: rgba(124,58,237,0.2); color: var(--brand-light); }
.tab-panel  { min-height: 80px; }
#panelChart { padding: 20px; }
#panelChart canvas { max-height: 300px; }

.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
table thead th {
    background: rgba(124,58,237,0.07); color: var(--brand-light);
    font-family: 'DM Mono', monospace; font-size: 10.5px; font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.09em;
    padding: 11px 16px; text-align: left;
    border-bottom: 1px solid var(--border); white-space: nowrap;
}
body.light table thead th { background: rgba(124,58,237,0.05); }
table tbody tr          { border-bottom: 1px solid var(--table-border); transition: background 0.12s; }
table tbody tr:hover    { background: var(--table-row-hover); }
table tbody td          { padding: 10px 16px; font-size: 12.5px; color: var(--text-primary); font-family: 'DM Mono', monospace; white-space: nowrap; }
body.light table tbody td { color: #334155; }
td.credit { color: #4ade80 !important; font-weight: 600; }
td.debit  { color: #f87171 !important; font-weight: 600; }
td.amount { font-weight: 600; }

.single-value  { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 52px 24px; gap: 10px; }
.value-number  { font-size: 52px; font-weight: 800; color: var(--brand-light); letter-spacing: -0.03em; font-family: 'Syne', sans-serif; }
.value-label   { font-size: 11px; color: var(--text-muted); font-family: 'DM Mono', monospace; text-transform: uppercase; letter-spacing: 0.12em; }
.empty-result  { display: flex; flex-direction: column; align-items: center; padding: 52px 24px; gap: 10px; }
.empty-icon    { font-size: 32px; }
.empty-result p { color: var(--text-muted); font-size: 13px; font-family: 'DM Mono', monospace; }

#summaryBox {
    display: none; background: rgba(124,58,237,0.05);
    border: 1px solid rgba(124,58,237,0.12);
    border-radius: 14px; padding: 14px 18px; margin-top: 12px;
    align-items: flex-start; gap: 12px;
}
.summary-icon { font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.summary-text { font-size: 13px; color: var(--text-primary); line-height: 1.7; font-family: 'DM Mono', monospace; font-weight: 500; }
body.light .summary-text { color: #334155; }

/* ══════════════════════════════════════
   EXPORT BAR
══════════════════════════════════════ */
.export-bar {
    display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
    padding: 10px 14px; margin-bottom: 12px;
    background: rgba(124,58,237,0.05); border: 1px solid rgba(124,58,237,0.15);
    border-radius: 10px; font-size: 12px; color: var(--text-muted); font-family: 'DM Mono', monospace;
}
.export-btn          { padding: 6px 16px; border: none; border-radius: 7px; font-size: 12px; font-weight: 600; cursor: pointer; font-family: 'Syne', sans-serif; transition: opacity 0.2s; }
.export-btn:hover    { opacity: 0.85; }
.btn-csv             { background: #16a34a; color: white; }
.btn-pdf             { background: #7c3aed; color: white; }

/* ══════════════════════════════════════
   HISTORY PANEL
══════════════════════════════════════ */
.history-panel {
    display: none; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 16px; padding: 20px; max-height: 400px; overflow-y: auto; margin-bottom: 16px;
    transition: background 0.3s ease;
}
.history-panel.show  { display: block; }
.history-header      { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.history-title       { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.history-clear       { font-size: 11px; color: var(--text-muted); cursor: pointer; font-family: 'DM Mono', monospace; }
.history-clear:hover { color: var(--text-secondary); }
.history-item        { padding: 12px; border-radius: 10px; margin-bottom: 8px; cursor: pointer; transition: all 0.18s ease; border: 1px solid transparent; }
.history-item:hover  { background: rgba(124,58,237,0.08); border-color: rgba(124,58,237,0.15); }
.history-query       { font-size: 13px; color: var(--text-primary); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-meta        { font-size: 10px; color: var(--text-muted); font-family: 'DM Mono', monospace; display: flex; gap: 12px; }
.history-empty       { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 13px; font-family: 'DM Mono', monospace; }

/* ══════════════════════════════════════
   SQL BOX
══════════════════════════════════════ */
.sql-box   { background: var(--bg-sidebar); border-radius: 10px; padding: 14px 18px; margin-bottom: 14px; overflow-x: auto; border: 1px solid var(--border); }
.sql-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; font-family: 'DM Mono', monospace; }
.sql-box code { color: #64ffda; font-family: 'DM Mono', monospace; font-size: 12.5px; white-space: pre-wrap; word-break: break-word; }
body.light .sql-box code { color: var(--brand); }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.show { display: block; }
    .main-content { margin-left: 0; padding: 16px; }
    .query-input-row { flex-direction: column; }
    .summary-cards { grid-template-columns: repeat(2, 1fr); }
}