/* GéoMag — motion design system (premium, intentional, accessible) */
:root {
  --motion-fast: 140ms;
  --motion-base: 240ms;
  --motion-slow: 420ms;
  --motion-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --motion-spring: cubic-bezier(0.34, 1.3, 0.64, 1);
  --lift-shadow: 0 14px 36px -18px rgba(27, 67, 50, 0.45);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Page enter */
.page-enter {
  animation: pageEnter var(--motion-slow) var(--motion-ease) both;
}
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--motion-slow) var(--motion-ease),
    transform var(--motion-slow) var(--motion-ease);
  transition-delay: calc(var(--reveal-delay, 0) * 55ms);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}
.reveal-stagger > .reveal:nth-child(1) { --reveal-delay: 0; }
.reveal-stagger > .reveal:nth-child(2) { --reveal-delay: 1; }
.reveal-stagger > .reveal:nth-child(3) { --reveal-delay: 2; }
.reveal-stagger > .reveal:nth-child(4) { --reveal-delay: 3; }
.reveal-stagger > .reveal:nth-child(5) { --reveal-delay: 4; }
.reveal-stagger > .reveal:nth-child(6) { --reveal-delay: 5; }
.reveal-stagger > .reveal:nth-child(7) { --reveal-delay: 6; }
.reveal-stagger > .reveal:nth-child(8) { --reveal-delay: 7; }

/* Interactive surfaces */
.btn,
.card,
.article-card,
.card-link,
.cat-card,
.nav-main a,
.page-trail a {
  transition:
    transform var(--motion-base) var(--motion-ease),
    box-shadow var(--motion-base) var(--motion-ease),
    border-color var(--motion-base) var(--motion-ease),
    background-color var(--motion-base) var(--motion-ease),
    color var(--motion-fast) ease,
    opacity var(--motion-fast) ease,
    filter var(--motion-fast) ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}
.btn:active {
  transform: translateY(1px) scale(0.98);
  filter: brightness(0.98);
}
.btn.is-loading {
  pointer-events: none;
  opacity: 0.72;
  position: relative;
}
.btn.is-loading::after {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  margin-left: 0.45rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.7s linear infinite;
  vertical-align: -0.15rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

.article-card:hover,
.card-link:hover,
.cat-card:hover,
.card.card-pad:hover {
  transform: translateY(-5px);
  box-shadow: var(--lift-shadow);
  border-color: var(--emerald);
}
.article-card:hover .article-visual svg,
.article-card:focus-visible .article-visual svg {
  transform: scale(1.04);
}
.article-visual svg {
  transition: transform var(--motion-slow) var(--motion-ease);
}

.nav-main a {
  position: relative;
  padding: 0.35rem 0.45rem;
  border-radius: 8px;
}
.nav-main a::after {
  content: "";
  position: absolute;
  left: 0.45rem;
  right: 0.45rem;
  bottom: 0.15rem;
  height: 2px;
  border-radius: 2px;
  background: var(--emerald);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--motion-base) var(--motion-ease);
}
.nav-main a:hover::after,
.nav-main a.is-active::after {
  transform: scaleX(1);
}
.nav-main a.is-active {
  text-decoration: none;
  color: var(--forest);
  font-weight: 700;
}

/* Brand micro-motion */
.brand img {
  transition: transform var(--motion-base) var(--motion-spring);
}
.brand:hover img { transform: rotate(-4deg) scale(1.04); }

/* Header elevation on scroll */
.site-header.is-scrolled {
  box-shadow: 0 10px 30px -24px rgba(15, 23, 42, 0.45);
  background: rgba(247, 251, 248, 0.96);
}

/* Reading progress */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 90;
  background: linear-gradient(90deg, var(--emerald), var(--forest-light));
  pointer-events: none;
  transition: width 80ms linear;
}

/* Flash / toast */
.flash {
  animation: flashIn var(--motion-base) var(--motion-ease) both;
}
@keyframes flashIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}
.geomag-toast {
  transition: transform var(--motion-base) var(--motion-ease), opacity var(--motion-base) ease;
}

/* Hero map spots pulse */
.geo-visual .spot {
  animation: spotPulse 2.4s ease-in-out infinite;
}
.geo-visual .spot:nth-child(odd) { animation-delay: 0.4s; }
.geo-visual .spot:nth-child(even) { animation-delay: 1.1s; }
@keyframes spotPulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.22); }
  50% { box-shadow: 0 0 0 11px rgba(16, 185, 129, 0.12); }
}
.geo-visual .hud span {
  transition: opacity var(--motion-fast) ease;
}
.home-hero .hero-inner > div:first-child {
  animation: heroCopyIn 0.7s var(--motion-ease) both;
}
.home-hero .geo-visual {
  animation: heroMapIn 0.85s var(--motion-ease) 0.12s both;
}
@keyframes heroCopyIn {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: none; }
}
@keyframes heroMapIn {
  from { opacity: 0; transform: translateX(18px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

/* Stats count-up */
.hero-stats b {
  font-variant-numeric: tabular-nums;
}
.stat-card,
.hero-stats > div {
  transition: transform var(--motion-base) var(--motion-ease);
}
.hero-stats > div:hover,
.stat-card:hover {
  transform: translateY(-3px);
}

/* Forms focus */
form.stack input:focus,
form.stack textarea:focus,
form.stack select:focus,
.filters-bar input:focus,
.filters-bar select:focus,
.newsletter-form input:focus {
  outline: none;
  border-color: var(--emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
  transition: box-shadow var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

/* Mobile drawer */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex: none;
}
.nav-toggle-bars {
  width: 18px;
  height: 12px;
  position: relative;
}
.nav-toggle-bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--forest);
  transition: transform var(--motion-base) var(--motion-ease), opacity var(--motion-fast) ease, top var(--motion-base) ease;
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5px; }
.nav-toggle-bars span:nth-child(3) { top: 10px; }
body.nav-open .nav-toggle-bars span:nth-child(1) { top: 5px; transform: rotate(45deg); }
body.nav-open .nav-toggle-bars span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle-bars span:nth-child(3) { top: 5px; transform: rotate(-45deg); }

.mobile-scrim {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-base) ease;
  z-index: 55;
}
body.nav-open .mobile-scrim {
  opacity: 1;
  pointer-events: auto;
}
.mobile-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(86vw, 320px);
  height: 100%;
  background: #f7fbf8;
  border-left: 1px solid var(--border);
  z-index: 60;
  padding: 5.5rem 1.2rem 1.5rem;
  transform: translateX(104%);
  transition: transform var(--motion-slow) var(--motion-ease);
  display: grid;
  gap: 0.35rem;
  align-content: start;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: -20px 0 50px -30px rgba(15, 23, 42, 0.5);
}
body.nav-open .mobile-panel { transform: none; }
.mobile-panel a,
.mobile-panel .btn {
  width: 100%;
  justify-content: flex-start;
  min-height: 44px;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
}
.mobile-panel a:hover,
.mobile-panel a.is-active {
  background: #e6f4ee;
  color: var(--forest);
}
.mobile-account {
  display: grid;
  gap: 0.15rem;
  padding: 0.45rem 0.85rem 0.75rem;
  margin-bottom: 0.15rem;
  border-bottom: 1px solid var(--border, #d5e0d9);
}
.mobile-account strong {
  font-size: 1rem;
  color: var(--forest);
}
.mobile-account span {
  font-size: 0.8rem;
  color: var(--muted);
  word-break: break-word;
}
.mobile-nav-section {
  margin: 0.45rem 0 0.15rem;
  padding: 0 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.mobile-nav-item {
  display: flex !important;
  align-items: center;
  gap: 0.7rem;
}
.mobile-nav-icon {
  display: inline-flex;
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
  color: var(--forest);
  opacity: 0.9;
}
.mobile-nav-icon svg {
  width: 100%;
  height: 100%;
}
.mobile-nav-hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 0.65rem 0.2rem;
}
.mobile-logout {
  margin: 0.35rem 0 0.15rem;
  padding: 0 0.15rem;
}
.mobile-logout .btn {
  width: 100%;
}

/* Category icon badge */
.cat-icon-svg {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #e6f4ee;
  color: var(--forest);
  display: grid;
  place-items: center;
  margin-bottom: 0.55rem;
}
.cat-icon-svg svg { width: 22px; height: 22px; }

/* Filters chip feel */
.filters-bar {
  transition: box-shadow var(--motion-base) ease;
}
.filters-bar:focus-within {
  box-shadow: 0 10px 28px -22px rgba(27, 67, 50, 0.35);
}

/* Footer premium */
.site-footer.footer-premium {
  background: var(--navy);
  color: #cfe3da;
  border-top: 0;
  position: relative;
  overflow: hidden;
  margin-top: auto;
  padding: clamp(2.4rem, 5vw, 3.4rem) 0 1.35rem;
}
.site-footer.footer-premium .topo-lines {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  pointer-events: none;
}
.site-footer.footer-premium a { color: #9ee6c7; }
.site-footer.footer-premium .muted { color: #8fbfae; }
.site-footer.footer-premium .newsletter-form {
  max-width: none;
  margin: 0;
}
.site-footer.footer-premium .newsletter-form input {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(16, 185, 129, 0.28);
  color: #e8f7ef;
}
.site-footer.footer-premium .newsletter-form label { color: #bfe8d6; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav-main,
  .nav-auth { display: none; }
  .header-inner { justify-content: space-between; }
}

/* Skeleton / empty shimmer for future async */
.skeleton {
  background: linear-gradient(90deg, #e8f0eb 25%, #f4f8f6 37%, #e8f0eb 63%);
  background-size: 400% 100%;
  animation: shimmer 1.35s ease infinite;
  border-radius: 10px;
}
@keyframes shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: 0 0; }
}