/* ---------------------------------------------------------
   GOES Multi-Sector Loop Viewer — styles
   Dark theme, mobile-first. Grid expands at wider breakpoints.
--------------------------------------------------------- */

:root {
  --bg: #0b0f14;
  --bg-elevated: #131a22;
  --bg-card: #161e27;
  --border: #232d38;
  --text: #e6edf3;
  --text-dim: #8b98a5;
  --accent: #3ea6ff;
  --accent-dim: #1f4a66;
  --radius: 12px;
  --gap: 12px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 8px;
}

.topbar-inner h1 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.2px;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.clock {
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 6px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.icon-btn:hover,
.icon-btn:active {
  background: var(--border);
  color: var(--text);
}

.icon-btn.spinning svg {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- Sector tabs ---------- */

.sector-row {
  display: flex;
  gap: 6px;
  padding: 0 16px 10px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--border);
}

.sector-row::-webkit-scrollbar { display: none; }

.sector-tab {
  flex: 0 0 auto;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  padding: 6px 10px 8px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}

.sector-tab:hover {
  color: var(--text);
}

.sector-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- Filter chips ---------- */

.filter-row {
  display: flex;
  gap: 8px;
  padding: 10px 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-row::-webkit-scrollbar { display: none; }

.filter-chip {
  flex: 0 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.filter-chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text);
}

/* ---------- Grid ---------- */

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  padding: var(--gap);
}

@media (min-width: 620px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 980px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1320px) {
  .grid { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s, transform 0.1s;
}

.card:active {
  transform: scale(0.99);
}

.card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #05070a;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card-media img.loaded {
  opacity: 1;
}

.card-media .spinner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 0.75rem;
}

.card-media .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  top: 10px;
  right: 10px;
  box-shadow: 0 0 6px var(--accent);
}

.card-body {
  padding: 10px 12px 12px;
}

.card-title {
  font-size: 0.86rem;
  font-weight: 600;
  margin: 0 0 2px;
}

.card-desc {
  font-size: 0.74rem;
  color: var(--text-dim);
  margin: 0;
}

/* ---------- Modal (fullscreen loop) ---------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(3, 5, 8, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.modal[hidden] { display: none; }

.modal-inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

#modalTitle {
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 12px;
  text-align: center;
  padding: 0 48px;
}

.modal-image-wrap {
  width: 100%;
  max-width: 900px;
  max-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-image-wrap img {
  max-width: 100%;
  max-height: 78vh;
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* ---------- Footer ---------- */

.footer {
  padding: 20px 16px 32px;
  text-align: center;
}

.footer p {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin: 0;
}