/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-base);color:var(--text-primary);font-family:var(--font-body);font-size:14px;line-height:1.6;min-height:100vh}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-surface)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#484f58}

/* ── HEADER ── */
.app-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,17,23,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-soft);
  padding:0 24px;height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.app-logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-title);font-size:18px;font-weight:700;letter-spacing:.04em;
  text-transform:uppercase;color:var(--text-primary);
}
.app-logo .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--text-secondary);box-shadow:0 0 8px var(--text-secondary);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(.85)}}
.header-status{font-family:var(--font-mono);font-size:11px;color:var(--text-secondary);display:flex;align-items:center;gap:8px}
.status-badge{padding:2px 8px;border-radius:20px;font-size:10px;font-weight:500;border:1px solid currentColor}
.status-badge.idle   {color:var(--text-muted);border-color:var(--text-muted)}
.status-badge.ready  {color:var(--success);border-color:var(--success)}
.status-badge.loading{color:var(--text-secondary);border-color:var(--text-secondary);animation:pulse 1.2s ease infinite}

/* ── FILTER BAR ── */
#filterBar{
  background:var(--bg-surface);
  border-bottom:1px solid var(--border-soft);
  padding:.6rem 24px;display:none;
}
#filterBar.visible{display:block}
.filter-row{display:flex;align-items:flex-end;gap:.75rem;flex-wrap:wrap}
.fbar-group{display:flex;flex-direction:column;gap:3px}
.fbar-lbl{font-family:var(--font-title);font-size:.58rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.fbar-date-pair{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.fbar-date-inp{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:0 8px;
  color:var(--text-primary);font-size:.8rem;font-family:var(--font-body);
  outline:none;transition:border-color .2s;width:128px;height:32px;
}
.fbar-date-inp:focus{border-color:var(--text-secondary)}
.fbar-divider{width:1px;height:28px;background:var(--border);flex-shrink:0;margin:0 .1rem;align-self:center}
.fbar-select{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:0 22px 0 8px;
  color:var(--text-primary);font-size:.78rem;font-family:var(--font-body);
  outline:none;transition:border-color .2s;appearance:none;-webkit-appearance:none;
  height:32px;min-width:110px;max-width:160px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%238b98c4' stroke-width='3'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:right 6px center;
}
.fbar-select:focus{border-color:var(--text-secondary)}
.fbar-select option{background:var(--bg-card);color:var(--text-primary)}
.fbar-btn-group{display:flex;flex-direction:row;align-items:center;flex-wrap:wrap;gap:4px;margin-left:auto;flex-shrink:0}
.fbar-btn-apply{
  background:var(--accent);border:none;border-radius:var(--radius);
  color:#fff;padding:0 12px;font-size:.78rem;height:32px;
  font-family:var(--font-title);font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;cursor:pointer;transition:all .2s;white-space:nowrap;
}
.fbar-btn-apply:hover{background:var(--accent-hover,#c94e14)}
.fbar-btn-clear{
  background:transparent;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text-secondary);
  padding:0 12px;font-size:.78rem;height:32px;font-family:var(--font-title);font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;cursor:pointer;transition:all .2s;white-space:nowrap;
}
.fbar-btn-clear:hover{border-color:var(--danger);color:var(--danger)}

/* ── MAIN LAYOUT ── */
.main-content{padding:24px;display:flex;flex-direction:column;gap:24px;min-height:calc(100vh - 56px)}

/* ── UPLOAD ZONE ── */
.main-upload-wrap{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  flex:1;min-height:calc(100vh - 56px);padding:48px 24px;
}
.upload-zone{
  border:2px dashed var(--border);border-radius:var(--radius-lg);
  padding:48px 24px;text-align:center;cursor:pointer;
  transition:all .25s ease;background:var(--bg-elevated);
  position:relative;overflow:hidden;max-width:520px;width:100%;
}
.upload-zone::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(232,96,28,.06) 0%,transparent 70%);
  opacity:0;transition:opacity .3s;
}
.upload-zone:hover::before,.upload-zone.drag-over::before{opacity:1}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);background:rgba(232,96,28,.04)}
.upload-zone.drag-over{transform:scale(1.01)}
.upload-icon{font-size:48px;margin-bottom:12px;display:block}
.upload-zone h3{font-family:var(--font-title);font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:6px}
.upload-zone p{color:var(--text-secondary);font-size:13px}
.upload-hint{
  margin-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;
  background:var(--bg-elevated);color:var(--text-secondary);
  padding:4px 12px;border-radius:20px;border:1px solid var(--border);
}
.progress-wrap{display:none;margin-top:16px;background:var(--bg-surface);border-radius:4px;overflow:hidden;height:4px}
.progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),#fbbf24);transition:width .3s ease;border-radius:4px}
#fileInput{display:none}

/* ── TOAST ── */
.toast{
  position:fixed;bottom:24px;right:24px;z-index:999;
  background:var(--bg-elevated);border:1px solid var(--border);
  border-radius:var(--radius);padding:12px 18px;
  font-size:13px;color:var(--text-primary);
  box-shadow:var(--shadow);
  transform:translateY(80px);opacity:0;transition:all .3s ease;
}
.toast.show{transform:none;opacity:1}
.toast.success{border-left:3px solid var(--success)}
.toast.error  {border-left:3px solid var(--danger)}
.toast.info   {border-left:3px solid var(--text-secondary)}

/* ── TOOLTIP ── */
.custom-tooltip{
  position:fixed;z-index:999;
  background:rgba(22,27,46,.97);border:1px solid #3a4478;
  border-radius:var(--radius);padding:8px 12px;font-size:11px;
  font-family:var(--font-body);pointer-events:none;opacity:0;
  transition:opacity .15s;color:#e8edf8;max-width:220px;white-space:pre-line;
}
.custom-tooltip.show{opacity:1}

/* ── ANIMATIONS ── */
@keyframes fadeIn {from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes fadeUp {from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .35s ease forwards}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .charts-grid{grid-template-columns:1fr}
  .chart-card.full-width{grid-column:auto}
}
@media(max-width:600px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .main-content{padding:14px}
}