/* /oil/assets/oil.css */

.oil-root {
  --oil-bg: #f8fafc;
  --oil-card: #ffffff;
  --oil-line: #e2e8f0;
  --oil-txt: #0f172a;
  --oil-mut: #64748b;
  --oil-acc: #0ea5e9;
  --oil-acc2: #0284c7;
  --oil-warm: #f97316;
  --oil-up: #16a34a;
  --oil-down: #dc2626;
}

.oil-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* HERO */
.oil-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: #fff;
  padding: 48px 0 56px;
}
.oil-hero h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.oil-sub {
  color: #94a3b8;
  font-size: 16px;
  max-width: 680px;
  line-height: 1.55;
  margin-bottom: 28px;
}

.oil-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 720px;
}
.oil-cards--3 {
  grid-template-columns: repeat(3, 1fr);
  max-width: 1080px;
}
@media (max-width: 900px) {
  .oil-cards--3 { grid-template-columns: repeat(2, 1fr); max-width: 720px; }
}
@media (max-width: 600px) {
  .oil-cards,
  .oil-cards--3 { grid-template-columns: 1fr; }
}

.oil-card--urals { border-color: rgba(220,53,69,0.35); }
.oil-spread {
  margin-top: 4px;
  font-size: 13px;
  color: #cbd5e1;
  font-feature-settings: 'tnum';
}

.oil-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 20px 24px;
  backdrop-filter: blur(4px);
}
.oil-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.oil-name {
  font-size: 14px;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.oil-sym {
  font-size: 11px;
  color: #64748b;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.oil-price {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -1px;
  font-feature-settings: 'tnum';
}
.oil-change {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 600;
  font-feature-settings: 'tnum';
}
.oil-change.up   { color: #4ade80; }
.oil-change.down { color: #f87171; }
.oil-change .arr { margin-right: 4px; }
.oil-upd {
  margin-top: 8px;
  font-size: 12px;
  color: #64748b;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Breadcrumb на темному hero (spoke) — підвищений контраст */
.oil-breadcrumb {
  font-size: 14px;
  margin-bottom: 12px;
  color: #cbd5e1;
}
.oil-breadcrumb a {
  color: #e2e8f0;
  text-decoration: none;
}
.oil-breadcrumb a:hover { color: #ffffff; text-decoration: underline; }
.oil-breadcrumb span { color: #94a3b8; }

/* "Історія марки" — світла картка для читабельності */
.oil-history {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  border-radius: 16px;
  padding: 24px 28px;
  color: var(--oil-txt);
  font-size: 16px;
  line-height: 1.7;
}
.oil-history p { margin: 0; }
@media (max-width: 600px) {
  .oil-history { padding: 18px; font-size: 15px; }
}

/* Крос-лінки внизу spoke — контрастні, у стилі сайту */
.oil-crosslinks { color: var(--oil-mut); }
.oil-crosslinks a {
  color: var(--oil-acc);
  font-weight: 600;
  text-decoration: none;
}
.oil-crosslinks a:hover { color: var(--oil-acc2); text-decoration: underline; }

/* SECTIONS */
.oil-section {
  padding: 48px 0;
  background: var(--oil-bg);
}
.oil-section--alt {
  background: #f1f5f9;
}
.oil-section h2 {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 900;
  color: var(--oil-txt);
  margin-bottom: 8px;
}
.oil-section-sub {
  color: var(--oil-mut);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 760px;
}

/* PERIOD BUTTONS */
.oil-period {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.oil-period-btn {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  color: var(--oil-mut);
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.15s;
}
.oil-period-btn:hover {
  border-color: #cbd5e1;
  color: var(--oil-txt);
}
.oil-period-btn.active {
  background: var(--oil-acc);
  border-color: var(--oil-acc);
  color: #fff;
}

.oil-chart-wrap {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  border-radius: 16px;
  padding: 20px;
  height: 400px;
}
@media (max-width: 600px) {
  .oil-chart-wrap { height: 250px; padding: 12px; }
}

/* 4 CARDS GRID */
.oil-grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 640px) {
  .oil-grid-4 { grid-template-columns: 1fr; gap: 16px; }
}

.oil-mini {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.oil-mini h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--oil-txt);
}
.oil-mini p {
  color: var(--oil-mut);
  font-size: 14px;
  line-height: 1.55;
}
.oil-mini-stats {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 14px;
  background: #f1f5f9;
  border-radius: 10px;
}
.oil-mini-price {
  font-size: 22px;
  font-weight: 900;
  color: var(--oil-txt);
  font-feature-settings: 'tnum';
}
.oil-mini-change {
  font-size: 13px;
  font-weight: 700;
  font-feature-settings: 'tnum';
}
.oil-mini-change.up   { color: var(--oil-up); }
.oil-mini-change.down { color: var(--oil-down); }
.oil-mini-cta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}

/* BUTTONS */
.oil-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 11px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: 0.15s;
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
  box-sizing: border-box;
  line-height: 1.3;
}
@media (max-width: 600px) {
  .oil-btn { font-size: 13px; padding: 11px 12px; }
  .oil-btn--lg { font-size: 14px; padding: 12px 14px; }
}
.oil-btn--primary {
  background: var(--oil-acc);
  color: #fff;
}
.oil-btn--primary:hover { background: var(--oil-acc2); }
.oil-btn--secondary {
  background: #fff;
  color: var(--oil-txt);
  border: 1px solid var(--oil-line);
}
.oil-btn--secondary:hover {
  border-color: var(--oil-acc);
  color: var(--oil-acc);
}
.oil-btn--lg {
  padding: 14px 22px;
  font-size: 15px;
}

/* CALCULATOR */
.oil-calc {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
@media (max-width: 600px) {
  .oil-calc { padding: 18px; gap: 16px; }
}

.oil-calc-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.4fr;
  gap: 14px;
}
@media (max-width: 720px) {
  .oil-calc-row { grid-template-columns: 1fr; }
}
.oil-calc-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--oil-mut);
}
.oil-calc-row input,
.oil-calc-row select {
  font-size: 16px;
  padding: 10px 12px;
  border: 1px solid var(--oil-line);
  border-radius: 10px;
  background: #fff;
  color: var(--oil-txt);
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
}
.oil-calc-row input:focus,
.oil-calc-row select:focus {
  outline: none;
  border-color: var(--oil-acc);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.15);
}
.oil-calc-row select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2364748b' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.oil-calc-result {
  min-height: 120px;
  padding: 18px 20px;
  background: linear-gradient(135deg, #f0f9ff 0%, #fef3c7 100%);
  border: 1px solid #bae6fd;
  border-radius: 12px;
}
.oil-calc-main {
  font-size: 17px;
  color: var(--oil-txt);
  line-height: 1.6;
}
.oil-calc-value {
  display: inline-block;
  font-size: 30px;
  font-weight: 900;
  color: var(--oil-txt);
  font-feature-settings: 'tnum';
  vertical-align: baseline;
  line-height: 1;
  margin: 0 2px;
}
@media (max-width: 600px) {
  .oil-calc-main { font-size: 15px; line-height: 1.55; }
  .oil-calc-value { font-size: 22px; }
}
.oil-calc-pct {
  font-weight: 800;
  font-feature-settings: 'tnum';
}
.oil-calc-pct.up,
.oil-calc-compare .up { color: var(--oil-up); }
.oil-calc-pct.down,
.oil-calc-compare .down { color: var(--oil-down); }

.oil-calc-compare {
  margin-top: 14px;
  font-size: 14px;
}
.oil-calc-compare-title {
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--oil-mut);
}
.oil-calc-compare ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.oil-calc-compare li {
  font-feature-settings: 'tnum';
  color: var(--oil-txt);
}
.oil-calc-hint {
  color: var(--oil-mut);
  font-size: 14px;
  padding: 8px 0;
}

.oil-calc-cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
@media (max-width: 600px) {
  .oil-calc-cta { grid-template-columns: 1fr; }
}

/* FAQ */
.oil-faq {
  background: var(--oil-card);
  border: 1px solid var(--oil-line);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 12px;
}
.oil-faq h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--oil-txt);
  margin-bottom: 8px;
}
.oil-faq p {
  color: var(--oil-txt);
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 8px;
}
.oil-faq p:last-child { margin-bottom: 0; }
.oil-faq a {
  color: var(--oil-acc);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.oil-faq a:hover { color: var(--oil-acc2); }

/* Unified data-sources attribution (under FAQ) */
.oil-sources {
  font-size: 12px;
  color: #94a3b8;
  text-align: center;
  padding: 20px 0 4px;
  margin-top: 8px;
}
.oil-sources a {
  color: #94a3b8;
  text-decoration: underline;
}
.oil-sources a:hover { color: #475569; }

/* Live update indicator (під H1, на темному hero-фоні) */
.oil-last-update {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 24px;
  font-size: 14px;
  color: #94a3b8;
}
.oil-last-update time {
  color: #e2e8f0;
  font-weight: 500;
}
.oil-next-update {
  opacity: 0.75;
}
.oil-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,0.7);
  animation: oil-pulse-anim 2s infinite;
  flex-shrink: 0;
}
@keyframes oil-pulse-anim {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,0.7); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}
@media (prefers-reduced-motion: reduce) {
  .oil-pulse { animation: none; }
}
@media (max-width: 600px) {
  .oil-last-update { font-size: 13px; }
  .oil-next-update {
    width: 100%;
    text-align: center;
    margin-top: 2px;
  }
}