/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --bg:          hsl(225, 28%, 7%);
  --surface:     hsl(225, 22%, 11%);
  --surface-2:   hsl(225, 20%, 14%);
  --border:      rgba(255,255,255,.07);
  --border-h:    rgba(255,255,255,.14);

  --text:        hsl(215, 40%, 96%);
  --text-2:      hsl(215, 18%, 58%);
  --text-3:      hsl(215, 14%, 38%);

  --blue:        hsl(213, 90%, 60%);
  --blue-glow:   rgba(59,130,246,.15);
  --green:       hsl(152, 78%, 45%);
  --green-glow:  rgba(34,197,94,.14);
  --amber:       hsl(38, 95%, 62%);
  --amber-glow:  rgba(251,191,36,.12);
  --red:         hsl(0, 85%, 62%);

  --radius-lg:   18px;
  --radius-md:   12px;
  --radius-sm:   8px;
  --ease:        cubic-bezier(.4,0,.2,1);
  --t:           .25s var(--ease);

  --font-head:   'Outfit', sans-serif;
  --font-body:   'Inter', sans-serif;
}

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  font-size: 15px;
}

/* ── AMBIENT GLOWS ──────────────────────────────────────── */
.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: .55;
}
.glow--top-right {
  width: 55vw; height: 55vw;
  top: -15%; right: -15%;
  background: radial-gradient(circle, rgba(99,102,241,.12) 0%, transparent 70%);
}
.glow--bottom-left {
  width: 65vw; height: 65vw;
  bottom: -20%; left: -20%;
  background: radial-gradient(circle, rgba(34,197,94,.07) 0%, transparent 70%);
}

/* ── APP WRAPPER ─────────────────────────────────────────── */
.app {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* ── HEADER ──────────────────────────────────────────────── */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 40px rgba(0,0,0,.35);
}

.brand { display: flex; align-items: center; gap: 1rem; }

.brand__icon {
  font-size: 2.4rem;
  line-height: 1;
  animation: float 4s ease-in-out infinite;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, #fff 30%, var(--green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand__tagline {
  font-size: .82rem;
  color: var(--text-2);
  letter-spacing: .02em;
}

/* Status pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .45rem 1rem;
  border-radius: 999px;
  background: var(--green-glow);
  border: 1px solid rgba(34,197,94,.22);
  font-size: .82rem;
  font-weight: 600;
  color: var(--green);
  transition: var(--t);
}
.status-pill__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2.2s infinite;
}

/* ── KPI STRIP ───────────────────────────────────────────── */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.kpi-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.kpi-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-h);
  box-shadow: 0 14px 40px rgba(0,0,0,.3);
}

.kpi-card__icon { font-size: 1.9rem; flex-shrink: 0; line-height: 1; }

.kpi-card__label { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--text-2); }
.kpi-card__value { font-family: var(--font-head); font-size: 1.9rem; font-weight: 700; line-height: 1.1; margin: .3rem 0 .25rem; }
.kpi-card__sub   { font-size: .78rem; color: var(--text-3); }

.kpi-card__bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  border-radius: 0 3px 3px 0;
}
.kpi-card__bar--blue  { background: var(--blue); box-shadow: 0 0 16px var(--blue-glow); }
.kpi-card__bar--green { background: var(--green); box-shadow: 0 0 16px var(--green-glow); }
.kpi-card__bar--amber { background: var(--amber); box-shadow: 0 0 16px var(--amber-glow); }

.kpi-card--green .kpi-card__value { color: var(--green); }
.kpi-card--amber .kpi-card__value { color: var(--amber); }

/* ── PANEL BASE ──────────────────────────────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: 0 6px 30px rgba(0,0,0,.22);
}
.panel__title { font-family: var(--font-head); font-size: 1.3rem; font-weight: 700; margin-bottom: .2rem; }
.panel__sub   { font-size: .85rem; color: var(--text-2); margin-bottom: 1.4rem; }

/* ── MAIN GRID ───────────────────────────────────────────── */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 1.5rem;
}
@media (max-width: 860px) { .main-grid { grid-template-columns: 1fr; } }

/* ── DROPZONE ────────────────────────────────────────────── */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t), background var(--t), box-shadow var(--t);
  background: rgba(255,255,255,.018);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--green);
  background: var(--green-glow);
  box-shadow: inset 0 0 24px rgba(34,197,94,.06);
}
.dropzone__icon { font-size: 2.8rem; margin-bottom: .8rem; }
.dropzone__primary { font-weight: 600; font-size: 1rem; color: var(--text); margin-bottom: .25rem; }
.dropzone__secondary { font-size: .84rem; color: var(--text-2); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.link-btn {
  background: none; border: none;
  color: var(--green); font-weight: 600;
  font-size: inherit; cursor: pointer;
  text-decoration: underline;
  font-family: inherit;
}

.upload-actions { margin-top: 1.1rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .4rem;
  padding: .7rem 1.35rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .9rem; font-weight: 600;
  cursor: pointer;
  border: none; outline: none;
  transition: transform var(--t), box-shadow var(--t), opacity var(--t);
}
.btn:active { transform: scale(.97); }

.btn--outline {
  background: rgba(255,255,255,.045);
  color: var(--text);
  border: 1px solid var(--border-h);
}
.btn--outline:hover { background: rgba(255,255,255,.09); }

.btn--primary {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff;
  box-shadow: 0 4px 14px rgba(34,197,94,.22);
}
.btn--primary:hover { box-shadow: 0 6px 22px rgba(34,197,94,.4); transform: translateY(-1px); }

.btn--success {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59,130,246,.22);
}
.btn--success:hover { box-shadow: 0 6px 22px rgba(59,130,246,.4); transform: translateY(-1px); }

.btn--sm { padding: .45rem .9rem; font-size: .82rem; border-radius: 6px; }

/* ── FEATURE LIST ────────────────────────────────────────── */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  margin-top: 1.4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.feature-item {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .84rem;
  color: var(--text-2);
}
.feature-item__icon { font-size: 1rem; flex-shrink: 0; }

/* ── CHART ───────────────────────────────────────────────── */
.chart-area {
  position: relative;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}
#mainChart { display: none; width: 100% !important; }

.chart-empty {
  display: flex; flex-direction: column; align-items: center;
  gap: .75rem; color: var(--text-3); text-align: center; padding: 2rem;
}
.chart-empty__icon { font-size: 2.8rem; }

/* ── TABLES ──────────────────────────────────────────────── */
.tables-header {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: .8rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

.tabs { display: flex; gap: .3rem; background: var(--surface-2); padding: 3px; border-radius: 8px; }

.tab {
  padding: .45rem 1.1rem;
  border-radius: 6px;
  border: none; background: none;
  font-family: var(--font-body); font-size: .88rem; font-weight: 500;
  color: var(--text-2); cursor: pointer;
  transition: background var(--t), color var(--t);
}
.tab--active {
  background: rgba(255,255,255,.08);
  color: var(--text); font-weight: 600;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}

.export-btns { display: flex; gap: .6rem; }

.table-pane { display: none; }
.table-pane--active { display: block; }

.table-empty {
  padding: 3.5rem 1rem; text-align: center;
  color: var(--text-3); font-size: .9rem;
}

.table-scroll { overflow-x: auto; }

.data-table {
  width: 100%; border-collapse: collapse;
  font-size: .88rem; text-align: left;
}
.data-table th {
  padding: .85rem 1rem;
  background: rgba(255,255,255,.025);
  color: var(--text-2); font-weight: 600;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  text-transform: uppercase; letter-spacing: .06em; font-size: .75rem;
}
.data-table td {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.data-table tbody tr:hover { background: rgba(255,255,255,.022); }

.cell--missing {
  background: rgba(239,68,68,.1);
  color: var(--red) !important;
  font-weight: 600;
  border-radius: 4px;
}
.cell--missing::after {
  content: ' (blank)';
  font-size: .72rem; font-style: italic; font-weight: 400;
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  text-align: center; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: .82rem; color: var(--text-3);
}
.footer strong { color: var(--text-2); }

/* ── ANIMATIONS ──────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-7px); }
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  70%  { box-shadow: 0 0 0 9px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}