/* =====================================================================
   NUPRC Oil & Gas Production Intelligence Dashboard — Design System
   ===================================================================== */

/* ── Variables ────────────────────────────────────────────────────── */
:root {
  --header:      #003D22;
  --gold:        #C8920A;
  --bg:          #F2F4F0;
  --card:        #FFFFFF;
  --crude:       #2D6A4F;
  --gas:         #1A6B8A;
  --red:         #C0392B;
  --purple:      #6B4E9E;
  --section-lbl: #D4870A;
  --border:      #E0E6DF;
  --label:       #8A9A88;
  --value:       #1A2820;
  --sage:        #A8C8A8;

  --page-accent: var(--gold);   /* overridden per page */

  --header-h:    70px;
  --filter-h:    48px;
  --nav-h:       62px;
  --radius:      10px;
  --shadow:      0 2px 8px rgba(0,0,0,0.07);
  --font:        'Calibri', 'Segoe UI', sans-serif;
}

/* ── Reset ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--value);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ── Page wrapper (max 420px centered) ───────────────────────────── */
.wrapper {
  max-width: 420px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  box-shadow: 0 0 32px rgba(0,0,0,0.10);
  background: var(--bg);
}

/* ── Header ──────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header);
  min-height: var(--header-h);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-logo svg { flex-shrink: 0; display: block; }
.header-text { flex: 1; min-width: 0; }
.header-title {
  font-size: 11.5px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  letter-spacing: 0.01em;
}
.header-subtitle {
  font-size: 9.5px;
  color: var(--sage);
  margin-top: 2px;
  line-height: 1.3;
}
.header-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 20px;
  padding: 4px 8px;
  font-size: 9px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  letter-spacing: 0.03em;
}
.badge-dot {
  color: #4CAF50;
  font-size: 8px;
  line-height: 1;
}

/* ── Year Filter Bar ─────────────────────────────────────────────── */
.filter-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: var(--filter-h);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.filter-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--label);
  white-space: nowrap;
}
.year-select {
  flex: 1;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 8px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  color: var(--value);
  background: var(--bg);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A9A88' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 28px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.year-select:focus {
  outline: none;
  border-color: var(--page-accent);
}
.filter-terminal {
  flex: 1.4;
}

/* ── Main Content ────────────────────────────────────────────────── */
.page-content {
  padding: 14px 14px calc(var(--nav-h) + 14px);
}

/* ── Section Labels ──────────────────────────────────────────────── */
.section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--section-lbl);
  margin: 18px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.section-label:first-child { margin-top: 4px; }

/* ── KPI Grid ────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.kpi-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

/* ── KPI Card ────────────────────────────────────────────────────── */
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 12px 10px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s;
  min-width: 0;
}
.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--page-accent);
  border-radius: var(--radius) var(--radius) 0 0;
}
.kpi-label {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--label);
  margin-bottom: 4px;
  line-height: 1.3;
}
.kpi-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--value);
  line-height: 1.1;
  letter-spacing: -0.02em;
  word-break: break-all;
}
.kpi-value.small { font-size: 16px; }
.kpi-value.pos { color: var(--crude); }
.kpi-value.neg { color: var(--red); }
.kpi-badge {
  display: inline-block;
  margin-top: 8px;
  font-size: 8.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 10px;
  background: rgba(200,146,10,0.12);
  color: var(--page-accent);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Page-specific KPI badge tints */
.page-crude  .kpi-badge { background: rgba(45,106,79,0.12);  color: var(--crude); }
.page-gas    .kpi-badge { background: rgba(26,107,138,0.12); color: var(--gas); }
.page-terminals .kpi-badge { background: rgba(200,146,10,0.12); color: var(--gold); }
.page-glossary  .kpi-badge { background: rgba(0,61,34,0.10);   color: var(--header); }

/* Page accent overrides */
.page-crude     { --page-accent: var(--crude); }
.page-gas       { --page-accent: var(--gas); }
.page-terminals { --page-accent: var(--gold); }
.page-glossary  { --page-accent: var(--header); }

/* ── Progress Bars ───────────────────────────────────────────────── */
.progress-wrap {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s ease;
}
.progress-fill.green { background: var(--crude); }
.progress-fill.red   { background: var(--red); }

/* ── Snapshot Card ───────────────────────────────────────────────── */
.snapshot-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--page-accent);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--value);
  box-shadow: var(--shadow);
  margin-top: 2px;
  transition: border-color 0.2s;
}

/* ── Insight Cards (horizontal scroll) ───────────────────────────── */
.insights-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
  scrollbar-width: none;
}
.insights-scroll::-webkit-scrollbar { display: none; }
.insight-card {
  flex: 0 0 278px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--red);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.insight-emoji { font-size: 20px; margin-bottom: 6px; }
.insight-headline {
  font-size: 13px;
  font-weight: 700;
  color: var(--value);
  margin-bottom: 4px;
  line-height: 1.3;
}
.insight-body {
  font-size: 11.5px;
  color: var(--label);
  line-height: 1.5;
}

/* ── Chart Cards ─────────────────────────────────────────────────── */
.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 12px 14px;
  box-shadow: var(--shadow);
}
.chart-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--label);
  margin-bottom: 10px;
}
.chart-wrap {
  position: relative;
  height: 220px;
}

/* ── Sections spacing ────────────────────────────────────────────── */
.section-block { display: flex; flex-direction: column; gap: 10px; }

/* ── Terminal Table ──────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.term-table {
  border-collapse: collapse;
  min-width: 580px;
  width: 100%;
  font-size: 11.5px;
  background: var(--card);
}
.term-table th,
.term-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  text-align: right;
}
.term-table th:first-child,
.term-table td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  z-index: 2;
  box-shadow: 2px 0 5px rgba(0,0,0,0.06);
}
.term-table thead th {
  background: var(--bg);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--label);
  border-bottom: 2px solid var(--border);
}
.term-table thead th:first-child {
  background: var(--bg);
  min-width: 150px;
}
.term-table tbody tr:nth-child(odd) td { background: var(--card); }
.term-table tbody tr:nth-child(even) td { background: #F9FBF8; }
.term-table tbody tr:nth-child(odd) td:first-child { background: var(--card); }
.term-table tbody tr:nth-child(even) td:first-child { background: #F9FBF8; }
.term-table tbody tr:last-child td { border-bottom: none; }
.cell-pos { color: var(--crude); font-weight: 600; }
.cell-neg { color: var(--red); font-weight: 600; }
.cell-base { color: var(--value); }
.cell-na { color: var(--label); }

/* ── Glossary ────────────────────────────────────────────────────── */
.gloss-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.gloss-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--crude);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow);
}
.gloss-box-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 10px;
}
.gloss-item {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin-bottom: 8px;
}
.gloss-item:last-child { margin-bottom: 0; }
.gloss-term {
  flex-shrink: 0;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 4px;
  min-width: 36px;
  text-align: center;
  line-height: 1.5;
}
.gloss-def {
  font-size: 10.5px;
  color: var(--label);
  line-height: 1.45;
}

/* Glossary box colour variants */
.gloss-oil  { border-top-color: var(--crude); }
.gloss-gas  { border-top-color: var(--gas); }
.gloss-reg  { border-top-color: var(--gold); }
.gloss-dash { border-top-color: var(--purple); }

.gloss-oil  .gloss-box-title { color: var(--crude); }
.gloss-gas  .gloss-box-title { color: var(--gas); }
.gloss-reg  .gloss-box-title { color: var(--gold); }
.gloss-dash .gloss-box-title { color: var(--purple); }

.gloss-oil  .gloss-term { background: rgba(45,106,79,0.12);   color: var(--crude); }
.gloss-gas  .gloss-term { background: rgba(26,107,138,0.12);  color: var(--gas); }
.gloss-reg  .gloss-term { background: rgba(200,146,10,0.12);  color: var(--gold); }
.gloss-dash .gloss-term { background: rgba(107,78,158,0.12);  color: var(--purple); }

/* ── Analyst Contact Card ────────────────────────────────────────── */
.contact-card {
  background: var(--header);
  border-radius: var(--radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  box-shadow: var(--shadow);
}
.contact-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  border: 2px solid rgba(255,255,255,0.2);
}
.contact-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.contact-title {
  font-size: 11px;
  color: var(--sage);
  margin-top: -6px;
  letter-spacing: 0.04em;
}
.contact-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: opacity 0.15s;
}
.contact-btn:active { opacity: 0.8; }
.btn-email {
  background: var(--gold);
  color: #fff;
}
.btn-linkedin {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
}

/* ── Data Note ───────────────────────────────────────────────────── */
.data-note {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 10.5px;
  color: var(--label);
  line-height: 1.6;
  box-shadow: var(--shadow);
}

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer {
  background: var(--header);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: var(--nav-h);
}
.footer-text {
  font-size: 9px;
  color: var(--sage);
  line-height: 1.4;
}
.footer-badge {
  font-size: 9px;
  font-weight: 700;
  color: var(--gold);
  background: rgba(200,146,10,0.15);
  border: 1px solid rgba(200,146,10,0.35);
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

/* ── Bottom Nav ──────────────────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 420px;
  height: var(--nav-h);
  background: var(--header);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: stretch;
  z-index: 200;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.18);
}
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--sage);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 2px;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.nav-item svg { flex-shrink: 0; }
.nav-item.active { color: var(--gold); }
.nav-item:active { color: var(--gold); }

/* ── Utilities ───────────────────────────────────────────────────── */
.mt-10 { margin-top: 10px; }
.mt-14 { margin-top: 14px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Responsive ────────────────────────────────────────────────────── */

/* Very small phones */
@media (max-width: 360px) {
  .kpi-value        { font-size: 18px; }
  .kpi-value.small  { font-size: 14px; }
  .gloss-grid       { grid-template-columns: 1fr; }
  .nav-item         { font-size: 7.5px; padding: 4px 1px; }
}

/* Between phone and tablet — just add card rounding */
@media (min-width: 421px) and (max-width: 639px) {
  .wrapper    { border-radius: 12px; margin: 20px auto; min-height: auto; }
  .bottom-nav { border-radius: 0 0 12px 12px; }
}

/* ── Tablet (640px+) ─────────────────────────────────────────────── */
@media (min-width: 640px) {
  .wrapper {
    max-width: 700px;
    border-radius: 12px;
    margin: 20px auto;
    min-height: auto;
  }
  .bottom-nav {
    max-width: 700px;
    border-radius: 0 0 12px 12px;
  }

  /* Charts two-per-row */
  .section-block             { flex-direction: row; flex-wrap: wrap; }
  .section-block .chart-card { flex: 1 1 calc(50% - 5px); min-width: 260px; }

  /* Insight cards: 2-column grid instead of horizontal scroll */
  .insights-scroll {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    overflow-x: visible;
    padding-bottom: 0;
  }
  .insight-card { flex: none; }

  .chart-wrap   { height: 240px; }
  .header-title { font-size: 13px; }
}

/* ── Desktop (960px+) ────────────────────────────────────────────── */
@media (min-width: 960px) {
  :root { --header-h: 76px; }

  .wrapper {
    max-width: 1060px;
    border-radius: 0;
    margin: 0 auto;
    min-height: 100vh;
    box-shadow: 0 0 60px rgba(0,0,0,0.10);
    display: flex;
    flex-direction: column;
  }

  /* Reorder: header → nav → filter-bar → content → footer */
  .site-header  { order: 1; }
  .bottom-nav   { order: 2; }
  .filter-bar   { order: 3; top: calc(var(--header-h) + var(--nav-h)); }
  .page-content { order: 4; flex: 1; }
  .site-footer  { order: 5; margin-bottom: 0; }

  /* Nav promoted to a sticky bar just below the header */
  .bottom-nav {
    position: sticky;
    top: var(--header-h);
    bottom: auto;
    left: auto;
    transform: none;
    width: 100%;
    max-width: 100%;
    border-top: none;
    border-bottom: 1px solid rgba(255,255,255,0.10);
    border-radius: 0;
    box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  }

  .page-content { padding: 20px 24px 28px; }

  /* KPI: 4 columns by default; 3 columns for the 6-card crude page */
  .kpi-grid             { grid-template-columns: repeat(4, 1fr); }
  .page-crude .kpi-grid { grid-template-columns: repeat(3, 1fr); }

  /* Insight cards: 3-column grid */
  .insights-scroll { grid-template-columns: repeat(3, 1fr); }

  /* Glossary: 4-column grid */
  .gloss-grid { grid-template-columns: repeat(4, 1fr); }

  .chart-wrap { height: 280px; }

  .header-title    { font-size: 15px; }
  .header-subtitle { font-size: 11.5px; }

  .header-logo { margin-top: 6px; }

  .nav-item     { font-size: 10px; gap: 4px; }
  .nav-item svg { width: 22px; height: 22px; }

  .kpi-value       { font-size: 28px; }
  .kpi-value.small { font-size: 20px; }

  .section-label { font-size: 11px; margin: 24px 0 10px; }
  .section-label:first-child { margin-top: 6px; }
}

/* ── Header Logo Image ───────────────────────────────────────────── */
.header-logo-img { flex-shrink: 0; display: block; }

/* ── Table Note ──────────────────────────────────────────────────── */
.table-note {
  font-size: 11px;
  color: #8A9A88;
  margin-bottom: 6px;
}

/* ── Analysis Page ───────────────────────────────────────────────── */
.page-analysis { --page-accent: var(--purple); }
.page-analysis .kpi-badge { background: rgba(107,78,158,0.12); color: var(--purple); }

.section-sub-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--value);
  margin: 14px 0 8px;
  padding-left: 8px;
  border-left: 3px solid var(--page-accent);
  line-height: 1.3;
}

.analysis-text {
  font-size: 12.5px;
  color: var(--value);
  line-height: 1.65;
  margin-bottom: 12px;
}

.analysis-note {
  font-size: 11.5px;
  color: var(--value);
  line-height: 1.6;
  background: rgba(200,146,10,0.07);
  border-left: 3px solid var(--gold);
  padding: 10px 14px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 12px;
  font-style: italic;
}

.analysis-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.analysis-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
  background: var(--card);
  min-width: 320px;
}
.analysis-table th {
  background: var(--header);
  color: #fff;
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 8px 10px;
  text-align: left;
  white-space: nowrap;
}
.analysis-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--value);
}
.analysis-table tr:last-child td { border-bottom: none; }
.analysis-table tbody tr:nth-child(even) td { background: #F9FBF8; }
.analysis-table tbody tr:nth-child(odd)  td { background: var(--card); }

.findings-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--page-accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  margin-bottom: 10px;
}
.findings-card-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--section-lbl);
  margin-bottom: 10px;
}
.findings-card ul {
  margin: 0;
  padding-left: 18px;
}
.findings-card li {
  font-size: 12px;
  color: var(--value);
  line-height: 1.65;
  margin-bottom: 5px;
}
.findings-card li:last-child { margin-bottom: 0; }