:root {
  --bg:          #efecea;
  --surface:     #ffffff;
  --surface2:    #f7f5f2;
  --border:      #dedad4;
  --border-dark: #c8c3bb;
  --text:        #111110;
  --muted:       #9e998f;
  --muted2:      #c4bfb8;
  --natural:     #166534;
  --diesel:      #1e3a8a;
  --natural-bg:  #f0fdf4;
  --diesel-bg:   #eff6ff;
  --live:        #b45309;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-dark); border-radius: 2px; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ══════════════════════════════════════
   HEADER
══════════════════════════════════════ */
.header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 32px 0 28px;
  animation: fadeDown .5s ease both;
  position: relative;
}

.header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 28px;
  width: 48px;
  height: 2px;
  background: var(--live);
  border-radius: 999px;
}

.header-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 28px;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}

.brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -.02em;
  color: var(--text);
  line-height: 1;
}

.brand-dot {
  color: var(--live);
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--live);
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: 999px;
  padding: 3px 10px;
}

.live-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--live);
  animation: livePulse 2.5s ease infinite;
  flex-shrink: 0;
}

.header-sub {
  font-size: .82rem;
  color: var(--muted);
  font-weight: 300;
  letter-spacing: .01em;
}

.header-time {
  font-family: 'DM Mono', monospace;
  font-size: .68rem;
  color: var(--muted2);
  margin-top: 4px;
}

/* ══════════════════════════════════════
   CONTAINER
══════════════════════════════════════ */
.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 28px 96px;
  display: flex;
  flex-direction: column;
  gap: 52px;
}

/* ── Section header ── */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .01em;
  color: var(--text);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--live);
  flex-shrink: 0;
}

.section-badge {
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  letter-spacing: .08em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--surface);
}

/* ══════════════════════════════════════
   PRICE CARDS
══════════════════════════════════════ */
.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 28px 24px;
  position: relative;
  overflow: hidden;
  animation: fadeUp .5s ease both;
  transition: border-color .2s, box-shadow .2s, transform .2s ease;
}

.card:nth-child(1) { animation-delay: .07s; }
.card:nth-child(2) { animation-delay: .14s; }

.card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 16px 0 0 16px;
}
.card--natural::before { background: var(--natural); }
.card--diesel::before  { background: var(--diesel); }

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,.07);
}
.card--natural:hover { border-color: #86efac; }
.card--diesel:hover  { border-color: #93c5fd; }

.card-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: 'DM Sans', sans-serif;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.card-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.card--natural .card-dot {
  background: var(--natural);
  animation: livePulse 3.5s ease infinite;
}
.card--diesel .card-dot {
  background: var(--diesel);
  animation: livePulse 3.5s .8s ease infinite;
}

.card-price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.card-price {
  font-family: 'DM Mono', monospace;
  font-size: clamp(3rem, 6vw, 4.4rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.03em;
}
.card--natural .card-price { color: var(--natural); }
.card--diesel  .card-price { color: var(--diesel); }

.card-currency {
  font-family: 'DM Mono', monospace;
  font-size: .85rem;
  color: var(--muted);
  padding-bottom: 4px;
}

/* ══════════════════════════════════════
   CHART
══════════════════════════════════════ */
.chart-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 20px 18px;
  height: 320px;
  position: relative;
  animation: fadeUp .5s .22s ease both;
}

.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ══════════════════════════════════════
   HISTORY TABLE
══════════════════════════════════════ */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  max-height: 500px;
  overflow-y: auto;
  animation: fadeUp .5s .3s ease both;
}

#history-table {
  width: 100%;
  border-collapse: collapse;
}

#history-table thead { position: sticky; top: 0; z-index: 2; }

#history-table th {
  background: var(--surface2);
  font-family: 'DM Sans', sans-serif;
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 12px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

#history-table td {
  padding: 11px 20px;
  font-size: .87rem;
  border-bottom: 1px solid var(--border);
  font-weight: 300;
  transition: background .1s;
}

#history-table tbody tr { opacity: 0; }
#history-table tbody tr.row-in {
  animation: rowSlide .35s ease forwards;
}

#history-table tbody tr:hover td { background: var(--surface2); }
#history-table tbody tr:last-child td { border-bottom: none; }

#history-table td:first-child {
  font-family: 'DM Mono', monospace;
  font-size: .7rem;
  color: var(--muted);
}
#history-table td:nth-child(2) {
  font-family: 'DM Mono', monospace;
  font-size: .87rem;
  color: var(--natural);
  font-weight: 500;
}
#history-table td:nth-child(3) {
  font-family: 'DM Mono', monospace;
  font-size: .87rem;
  color: var(--diesel);
  font-weight: 500;
}

.badge-same {
  font-family: 'DM Mono', monospace;
  font-size: .7rem;
  color: var(--muted2);
}

/* ══════════════════════════════════════
   SUBSCRIBE
══════════════════════════════════════ */
.subscribe-section {
  animation: fadeUp .5s .38s ease both;
}

.subscribe-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 36px 32px;
}

.subscribe-desc {
  color: var(--muted);
  font-size: .85rem;
  font-weight: 300;
  margin-top: 5px;
  margin-bottom: 20px;
}

#subscribe-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

#subscribe-form input {
  flex: 1;
  min-width: 200px;
  padding: 11px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: .9rem;
  font-family: 'DM Sans', sans-serif;
  color: var(--text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
#subscribe-form input::placeholder { color: var(--muted2); }
#subscribe-form input:focus {
  border-color: var(--border-dark);
  box-shadow: 0 0 0 3px rgba(0,0,0,.05);
  background: var(--surface);
}

#subscribe-form button {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 22px;
  background: var(--live);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: .875rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
}
#subscribe-form button:hover {
  background: #c2680a;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(180,83,9,.25);
}
#subscribe-form button:active { transform: translateY(0); }
#subscribe-form button:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.sub-message {
  margin-top: 12px;
  font-size: .82rem;
  color: var(--muted);
  min-height: 1.2em;
  font-weight: 300;
  transition: color .2s;
}
.sub-message.success { color: var(--natural); }
.sub-message.error   { color: #dc2626; }

/* ══════════════════════════════════════
   KEYFRAMES
══════════════════════════════════════ */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .3; transform: scale(.7); }
}

@keyframes rowSlide {
  from { opacity: 0; transform: translateX(-5px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  .card-price { font-size: 3.2rem; }
  .header-inner,
  .container { padding-left: 18px; padding-right: 18px; }
  .subscribe-inner { padding: 24px 20px; }
}