/* ============================================================
   Euro-Lev Fuel Prices — Stylesheet
   ============================================================ */

:root {
  --fp-blue:       #1a56db;
  --fp-blue-dark:  #1e429f;
  --fp-green:      #057a55;
  --fp-green-bg:   #def7ec;
  --fp-red:        #c81e1e;
  --fp-gray-50:    #f9fafb;
  --fp-gray-100:   #f3f4f6;
  --fp-gray-200:   #e5e7eb;
  --fp-gray-400:   #9ca3af;
  --fp-gray-600:   #4b5563;
  --fp-gray-800:   #1f2937;
  --fp-radius:     10px;
  --fp-shadow:     0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
}

/* ── Container ─────────────────────────────────────────────── */

.elev-fp {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--fp-gray-800);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* ── Header ────────────────────────────────────────────────── */

.elev-fp__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 8px;
}

.elev-fp__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--fp-gray-800);
}

/* ── Date navigation ───────────────────────────────────────── */

.elev-fp__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.elev-fp__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--fp-gray-200);
  border-radius: 8px;
  background: #fff;
  color: var(--fp-gray-800);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.elev-fp__btn:hover:not(:disabled) {
  background: var(--fp-gray-100);
  border-color: var(--fp-gray-400);
}

.elev-fp__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.elev-fp__btn--today {
  background: var(--fp-blue);
  border-color: var(--fp-blue);
  color: #fff;
}

.elev-fp__btn--today:hover:not(:disabled) {
  background: var(--fp-blue-dark);
  border-color: var(--fp-blue-dark);
}

.elev-fp__date-input {
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--fp-gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--fp-gray-800);
  background: #fff;
  cursor: pointer;
}

.elev-fp__date-input:focus {
  outline: 2px solid var(--fp-blue);
  outline-offset: 1px;
}

/* ── Source attribution ────────────────────────────────────── */

.elev-fp__source {
  font-size: 0.8rem;
  color: var(--fp-gray-400);
  margin: 0 0 20px;
}

.elev-fp__source a {
  color: var(--fp-blue);
  text-decoration: none;
}

.elev-fp__source a:hover {
  text-decoration: underline;
}

/* ── Average price cards ───────────────────────────────────── */

.elev-fp__averages {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.elev-fp__avg-card {
  flex: 1 1 130px;
  background: #fff;
  border: 1px solid var(--fp-gray-200);
  border-radius: var(--fp-radius);
  box-shadow: var(--fp-shadow);
  padding: 14px 18px;
  min-width: 120px;
}

.elev-fp__avg-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--fp-gray-600);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 6px;
}

.elev-fp__avg-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fp-gray-800);
  letter-spacing: -.02em;
}

.elev-fp__avg-unit {
  font-size: 0.8rem;
  color: var(--fp-gray-400);
  margin-left: 3px;
}

.elev-fp__avg-range {
  font-size: 0.75rem;
  color: var(--fp-gray-400);
  margin-top: 4px;
}

/* ── Status / Loading ──────────────────────────────────────── */

.elev-fp__status {
  padding: 40px 0;
  text-align: center;
  color: var(--fp-gray-400);
  font-size: 1rem;
}

.elev-fp__status--error {
  color: var(--fp-red);
}

.elev-fp__status--nodata {
  color: var(--fp-gray-400);
}

/* Spinner */
.elev-fp__spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid var(--fp-gray-200);
  border-top-color: var(--fp-blue);
  border-radius: 50%;
  animation: elev-fp-spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes elev-fp-spin {
  to { transform: rotate(360deg); }
}

/* ── Table ─────────────────────────────────────────────────── */

.elev-fp__table-wrap {
  overflow-x: auto;
  border-radius: var(--fp-radius);
  box-shadow: var(--fp-shadow);
  border: 1px solid var(--fp-gray-200);
}

.elev-fp__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: #fff;
}

/* Head */
.elev-fp__table thead th {
  background: var(--fp-gray-50);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--fp-gray-600);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--fp-gray-200);
  white-space: nowrap;
}

.elev-fp__table thead th:not(:first-child) {
  text-align: center;
}

/* Brand column (sticky on wide screens) */
.elev-fp__col-brand {
  min-width: 170px;
}

/* Body rows */
.elev-fp__table tbody tr {
  border-bottom: 1px solid var(--fp-gray-100);
  transition: background 0.1s;
}

.elev-fp__table tbody tr:last-child {
  border-bottom: none;
}

.elev-fp__table tbody tr:hover {
  background: var(--fp-gray-50);
}

/* Brand cell */
.elev-fp__brand-cell {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.elev-fp__table td {
  padding: 10px 16px;
  vertical-align: middle;
}

.elev-fp__table td:not(.elev-fp__col-brand-td) {
  text-align: center;
  font-weight: 500;
  font-size: 0.95rem;
}

/* Brand logo circle */
.elev-fp__brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  letter-spacing: 0;
}

.elev-fp__brand-name {
  font-weight: 600;
  color: var(--fp-gray-800);
}

/* Price cells */
.elev-fp__price {
  font-variant-numeric: tabular-nums;
}

.elev-fp__price--cheap {
  color: var(--fp-green);
  background: var(--fp-green-bg);
  border-radius: 6px;
  font-weight: 700;
}

.elev-fp__price--na {
  color: var(--fp-gray-400);
  font-size: 0.8rem;
}

/* ── History chart ─────────────────────────────────────────── */

.elev-fp__chart-section {
  margin-top: 36px;
}

.elev-fp__chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fp-gray-600);
  margin: 0 0 14px;
}

.elev-fp__chart-container {
  background: #fff;
  border: 1px solid var(--fp-gray-200);
  border-radius: var(--fp-radius);
  box-shadow: var(--fp-shadow);
  padding: 16px 16px 8px;
}

.elev-fp__chart-legend {
  display: flex;
  gap: 20px;
  margin-bottom: 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fp-gray-600);
}

.elev-fp__chart-leg-item {
  display: flex;
  align-items: center;
  gap: 7px;
}

.elev-fp__chart-leg-line {
  display: inline-block;
  width: 22px;
  height: 3px;
  border-radius: 2px;
  flex-shrink: 0;
}

.elev-fp__chart-inner {
  position: relative;
  user-select: none;
}

.elev-fp__chart-tip {
  position: absolute;
  top: 18px;
  background: var(--fp-gray-800);
  color: #fff;
  font-size: 0.78rem;
  line-height: 1.6;
  padding: 7px 10px;
  border-radius: 7px;
  pointer-events: none;
  white-space: nowrap;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}

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

@media (max-width: 680px) {
  .elev-fp__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .elev-fp__title {
    font-size: 1.2rem;
  }

  .elev-fp__avg-card {
    flex: 1 1 calc(50% - 6px);
  }

  .elev-fp__table {
    font-size: 0.82rem;
  }

  .elev-fp__table thead th,
  .elev-fp__table td {
    padding: 8px 10px;
  }
}