.sp-oi {
  --sp-oi-bg: #ffffff;
  --sp-oi-green: #1f4d3a;
  --sp-oi-green-dark: #163a2c;
  --sp-oi-text: #00392E;
  --sp-oi-line: #d6d9d3;
  --sp-oi-card: #f6f7f4;
  --sp-oi-radius: 14px;
  --sp-oi-radius-sm: 10px;
  --sp-oi-shadow: 0 1px 2px rgba(20, 40, 30, 0.04);
  --sp-oi-font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --sp-oi-font-serif: "Playfair Display", Georgia, "Times New Roman", serif;

  position: relative;
  width: 100%;
  padding: 0 80px 80px;
  background: var(--sp-oi-bg);
  font-family: var(--sp-oi-font-sans);
  color: var(--sp-oi-text);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

.sp-oi *,
.sp-oi *::before,
.sp-oi *::after {
  box-sizing: border-box;
}

.sp-oi__layout {
  display: grid;
  grid-template-columns: minmax(298px, auto) 1fr auto;
  gap: 28px;
  align-items: stretch;
}

.sp-oi__tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sp-oi__tabs li { margin: 0; padding: 0; }

.sp-oi .sp-oi__tab {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px 8px 8px;
  background: var(--sp-oi-card);
  border: 1px solid #00392E66;
  border-radius: 0 !important;
  cursor: pointer;
  font: inherit;
  color: var(--sp-oi-text);
  text-align: left;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
  box-shadow: none;
}

.sp-oi__tab:hover { border-color: var(--sp-oi-green); }

.sp-oi__tab:focus-visible {
  outline: 2px solid var(--sp-oi-green);
  outline-offset: 2px;
}

.sp-oi__tab.is-active {
  background: var(--sp-oi-green);
  border-color: var(--sp-oi-green);
  color: #fff;
}

.sp-oi__tab-thumb {
  flex: 0 0 auto;
  width: 56px;
  height: 40px;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  background-color: #c9cdc4;
}

.sp-oi__tab-label {
  font-family: "IvyJournal Regular", var(--sp-oi-font-serif);
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
}

.sp-oi__stage {
  position: relative;
  display: flex;
  flex-direction: column;
}

.sp-oi__panel {
  display: none;
  grid-template-columns: 1fr 2fr;
  gap: 28px;
  align-items: stretch;
  padding: 20px;
  border: 1px solid #00392E66;
}

.sp-oi__panel.is-active {
  display: grid;
  flex: 1 1 auto;
}

.sp-oi__panel[hidden] { display: none; }

.sp-oi__panel-image {
  overflow: hidden;
  background: #d8dcd4;
  height: 100%;
  min-height: 100%;
}

.sp-oi__panel-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sp-oi__panel-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sp-oi__panel-title {
  margin: 0;
  font-family: "IvyJournal Regular", var(--sp-oi-font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 24px;
  line-height: 32px;
  letter-spacing: 0;
  leading-trim: none;
  color: var(--sp-oi-text);
}

.sp-oi__panel-text {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: "Work Sans", var(--sp-oi-font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: var(--sp-oi-text);
}

.sp-oi__panel-text p { margin: 0; }

.sp-oi__nav {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
}

.sp-oi__nav-btn {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  background: var(--sp-oi-green) !important;
  border: 0 !important;
  border-radius: 0 !important;
  cursor: pointer;
  padding: 0 !important;
  color: #fff;
  box-shadow: none !important;
  opacity: 1 !important;
  visibility: visible !important;
  transition: background 0.2s ease, transform 0.2s ease;
}

.sp-oi__nav-btn:hover:not(:disabled) { background: var(--sp-oi-green-dark) !important; }

.sp-oi__nav-btn:active:not(:disabled) { transform: translateY(1px); }

.sp-oi__nav-btn:focus-visible {
  outline: 2px solid var(--sp-oi-green);
  outline-offset: 2px;
}

.sp-oi__nav-btn:disabled {
  background: #8a978f !important;
  opacity: 1 !important;
  cursor: not-allowed;
}

.sp-oi__nav-btn svg {
  width: 16px !important;
  height: 18px !important;
  display: block !important;
  fill: #fff !important;
  flex: 0 0 auto;
}

.sp-oi__nav-btn svg path {
  fill: #fff !important;
}

.sp-oi__nav-btn[data-dir="prev"] svg {
  transform: rotate(180deg);
}

@keyframes sp-oi-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sp-oi__panel.is-active .sp-oi__panel-image,
.sp-oi__panel.is-active .sp-oi__panel-body {
  animation: sp-oi-fade-in 0.35s ease;
}

@media (max-width: 900px) {
  .sp-oi {
    padding: 0 24px 40px;
  }

  .sp-oi__layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sp-oi__nav {
    flex-direction: row;
    justify-content: flex-end;
    height: auto;
  }

  .sp-oi__tabs {
    flex-direction: row;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 6px;
    margin: 0 -4px;
    gap: 8px;
  }

  .sp-oi__tabs li {
    scroll-snap-align: start;
    flex: 0 0 auto;
  }

  .sp-oi__tab { min-width: 220px; }

  .sp-oi__stage {
    min-height: 0;
  }

  .sp-oi__panel.is-active {
    grid-template-columns: 1fr;
  }

  .sp-oi__panel-image {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }
}