/**
 * NeutralHub — design system leggibile (dark)
 * Scroll fluido, animazioni GPU-friendly, tuning iOS / iPhone.
 */
:root {
  /* Celestino ~15% più chiaro (mix verso cielo), frost via blur sui layer */
  --bg: #35566c;
  --bg-elevated: #3a5c78;
  --surface: #416786;
  --surface-hover: #4b7293;
  --border: #5b88aa;
  --border-subtle: #4e799a;
  --text-primary: #f6fbfe;
  --text-secondary: #d6eef8;
  --text-muted: #a8d4eb;
  --text-faint: #82b8d4;
  --accent: #8edbff;
  --accent-dim: #1e5f7a;
  --frost-sat: 1.14;
  /* Motion — curve “spring” leggere */
  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-modal: cubic-bezier(0.32, 0.72, 0, 1);
  --dur-fast: 0.22s;
  --dur-med: 0.45s;
  --dur-slow: 0.65s;
}

html {
  height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: dark;
}

@supports (height: 100dvh) {
  .min-h-screen-safe {
    min-height: 100dvh;
  }
}

/* Un solo scroll verticale nel main: meno bounce strani su iOS */
body.app-shell {
  height: 100%;
  max-height: 100dvh;
  max-height: -webkit-fill-available;
  overflow: hidden;
  overscroll-behavior: none;
}

.app-shell {
  position: relative;
  min-height: 100dvh;
  min-height: -webkit-fill-available;
  background: var(--bg);
  color: var(--text-secondary);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Sfondo: halo celeste un po’ più luminoso (coerente con base schiarita) */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 115% 72% at 50% -14%, rgba(180, 238, 255, 0.2) 0%, transparent 58%),
    radial-gradient(ellipse 88% 56% at 100% 100%, rgba(120, 210, 245, 0.12) 0%, transparent 48%),
    var(--bg);
}

/* Header — vetro satinato (frost) */
.header-glow {
  flex-shrink: 0;
  background: color-mix(in srgb, var(--bg-elevated) 58%, rgba(255, 255, 255, 0.14) 42%);
  backdrop-filter: blur(22px) saturate(var(--frost-sat));
  -webkit-backdrop-filter: blur(22px) saturate(var(--frost-sat));
  border-bottom: 1px solid color-mix(in srgb, var(--border-subtle) 70%, rgba(255, 255, 255, 0.22));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
  transition: box-shadow var(--dur-med) var(--ease-spring);
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .header-glow {
    background: rgba(58, 92, 120, 0.82);
    backdrop-filter: blur(22px) saturate(1.12);
    -webkit-backdrop-filter: blur(22px) saturate(1.12);
  }
}

.app-title {
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Wordmark: il corsivo di “Neutrale” non deve tagliare la “e” (overflow / flex) */
.app-title-wordmark {
  line-height: 1.14;
  padding-right: 0.28em;
  overflow: visible;
  text-overflow: clip;
  white-space: nowrap;
  max-width: none;
}

.section-heading {
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

/* Campo ricerca: 16px+ evita zoom automatico su focus iOS */
.search-field-ios {
  font-size: 1rem;
  -webkit-appearance: none;
  appearance: none;
  border-radius: 0.75rem;
}

/* Card articoli — leggero frost sul contenuto che scorre sotto */
.news-card {
  position: relative;
  border-radius: 1rem;
  background: color-mix(in srgb, var(--surface) 76%, rgba(255, 255, 255, 0.1));
  border: 1px solid color-mix(in srgb, var(--border-subtle) 82%, rgba(255, 255, 255, 0.18));
  backdrop-filter: blur(12px) saturate(1.08);
  -webkit-backdrop-filter: blur(12px) saturate(1.08);
  transition:
    background var(--dur-fast) var(--ease-spring),
    border-color var(--dur-fast) var(--ease-spring),
    transform var(--dur-fast) var(--ease-spring),
    box-shadow var(--dur-med) var(--ease-spring);
  animation: card-rise var(--dur-med) var(--ease-out-expo) backwards;
  animation-delay: var(--stagger, 0ms);
  -webkit-tap-highlight-color: transparent;
}

.news-card:active {
  transform: scale(0.985);
}

@media (hover: hover) {
  .news-card:hover {
    background: color-mix(in srgb, var(--surface-hover) 78%, rgba(255, 255, 255, 0.12));
    border-color: var(--border);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  }
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .news-card {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .news-card:hover {
    background: var(--surface-hover);
  }
}

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.progress-track {
  background: var(--border-subtle);
  border-radius: 9999px;
  height: 0.375rem;
  overflow: hidden;
}

.progress-fill {
  border-radius: 9999px;
  height: 100%;
  width: 0;
  transition: width 0.85s var(--ease-spring);
  transform: translateZ(0);
}

/* Nav inferiore — frost sul feed sottostante */
.nav-dock {
  position: fixed;
  left: 50%;
  transform: translate3d(-50%, 0, 0);
  padding-bottom: max(0.5rem, env(safe-area-inset-bottom, 12px));
  padding-left: max(0.25rem, env(safe-area-inset-left));
  padding-right: max(0.25rem, env(safe-area-inset-right));
  background: color-mix(in srgb, var(--bg-elevated) 52%, rgba(255, 255, 255, 0.12));
  border: 1px solid color-mix(in srgb, var(--border-subtle) 75%, rgba(255, 255, 255, 0.2));
  backdrop-filter: blur(20px) saturate(var(--frost-sat));
  -webkit-backdrop-filter: blur(20px) saturate(var(--frost-sat));
  box-shadow:
    0 -6px 32px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.07) inset;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  animation: nav-dock-enter var(--dur-slow) var(--ease-out-expo) both;
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .nav-dock {
    background: rgba(58, 92, 120, 0.78);
    backdrop-filter: blur(20px) saturate(1.12);
    -webkit-backdrop-filter: blur(20px) saturate(1.12);
  }
}

@keyframes nav-dock-enter {
  from {
    opacity: 0;
    transform: translate3d(-50%, 20px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(-50%, 0, 0);
  }
}

.nav-item {
  min-height: 44px;
  min-width: 0;
  flex: 1 1 0;
  justify-content: center;
  border-radius: 0.75rem;
  color: var(--text-faint);
  transition:
    color var(--dur-fast) var(--ease-spring),
    background var(--dur-fast) var(--ease-spring),
    transform 0.18s var(--ease-spring);
  -webkit-tap-highlight-color: transparent;
}

.nav-item .material-symbols-outlined {
  transition: transform 0.35s var(--ease-spring), color var(--dur-fast) ease;
}

.nav-item:not(.active) {
  color: var(--text-faint);
}

.nav-item.active {
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
}

.nav-item.active .material-symbols-outlined {
  color: var(--accent);
  transform: scale(1.08);
}

.nav-item:active {
  transform: scale(0.94);
}

.nav-item.active:active {
  transform: scale(0.96);
}

/* Sezioni — reveal morbido */
.view-section {
  animation: section-reveal var(--dur-med) var(--ease-out-expo) both;
}

@keyframes section-reveal {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal — più frost sullo sfondo */
.modal-backdrop {
  transition: opacity 0.38s var(--ease-spring);
  background: rgba(15, 35, 52, 0.52);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
}

.modal-panel-motion {
  transition:
    transform 0.55s var(--ease-modal),
    opacity 0.42s var(--ease-spring);
}

.modal-panel {
  background: color-mix(in srgb, var(--bg-elevated) 72%, rgba(255, 255, 255, 0.14));
  border: 1px solid color-mix(in srgb, var(--border) 78%, rgba(255, 255, 255, 0.2));
  backdrop-filter: blur(26px) saturate(1.12);
  -webkit-backdrop-filter: blur(26px) saturate(1.12);
  box-shadow:
    0 -12px 48px rgba(0, 0, 0, 0.38),
    0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .modal-panel {
    background: rgba(58, 92, 120, 0.92);
    backdrop-filter: blur(24px) saturate(1.1);
    -webkit-backdrop-filter: blur(24px) saturate(1.1);
  }
}

#articleModal .overflow-y-auto {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
  scroll-behavior: smooth;
}

/* Tablet/desktop: fade leggero mantenendo il translate Tailwind (sheet / center) */
@media (min-width: 640px) {
  #modalContent.translate-y-full {
    opacity: 0;
  }

  #modalContent:not(.translate-y-full) {
    opacity: 1;
  }
}

.market-tab {
  transition:
    color var(--dur-fast) var(--ease-spring),
    border-color var(--dur-fast) var(--ease-spring),
    background var(--dur-fast) var(--ease-spring),
    transform 0.15s var(--ease-spring);
  border: 1px solid var(--border-subtle);
  background: var(--surface);
  color: var(--text-muted);
  -webkit-tap-highlight-color: transparent;
}

.market-tab:active {
  transform: scale(0.97);
}

.market-tab.active {
  color: var(--text-primary);
  border-color: var(--accent);
  background: rgba(142, 219, 255, 0.2);
}

.market-tab:not(.active):hover {
  border-color: var(--border);
}

.chart-range {
  transition:
    border-color var(--dur-fast) var(--ease-spring),
    color var(--dur-fast) var(--ease-spring),
    background var(--dur-fast) var(--ease-spring),
    transform 0.15s var(--ease-spring);
  -webkit-tap-highlight-color: transparent;
}

.chart-range:active {
  transform: scale(0.96);
}

.chart-range.active {
  color: var(--text-primary) !important;
  border-color: var(--accent) !important;
  background: rgba(142, 219, 255, 0.22) !important;
}

.chart-range:not(.active) {
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

@keyframes spin-smooth {
  to {
    transform: rotate(360deg);
  }
}

.animate-spin-smooth {
  animation: spin-smooth 0.75s linear infinite;
}

.toast-enter {
  animation: toast-spring 0.5s var(--ease-out-expo) both;
}

@keyframes toast-spring {
  from {
    opacity: 0;
    transform: translateY(-16px) scale(0.94);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.panel-card {
  background: color-mix(in srgb, var(--surface) 78%, rgba(255, 255, 255, 0.08));
  border: 1px solid color-mix(in srgb, var(--border-subtle) 80%, rgba(255, 255, 255, 0.14));
  border-radius: 1rem;
  backdrop-filter: blur(10px) saturate(1.06);
  -webkit-backdrop-filter: blur(10px) saturate(1.06);
  transition:
    border-color var(--dur-fast) var(--ease-spring),
    transform var(--dur-fast) var(--ease-spring),
    box-shadow var(--dur-med) var(--ease-spring);
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
  .panel-card:hover {
    border-color: var(--border);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  }
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .panel-card {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.panel-card:active {
  transform: scale(0.992);
}

/* Area scroll principale: momentum iOS, smooth, padding sotto la dock */
.main-scroll {
  flex: 1 1 auto;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  overscroll-behavior-y: contain;
  overscroll-behavior-x: none;
  touch-action: pan-y;
  scroll-padding-top: 0.5rem;
  scroll-padding-bottom: calc(5.75rem + env(safe-area-inset-bottom, 0px));
  transform: translateZ(0);
}

.main-scroll:focus {
  outline: none;
}

.empty-state {
  color: var(--text-muted);
  background: var(--surface);
  border: 1px dashed var(--border);
}

/* VERITAS — entrata leggera dei pannelli */
.veritas-doc > .panel-card {
  animation: veritas-panel-in 0.55s var(--ease-out-expo) backwards;
}

.veritas-doc > .panel-card:nth-child(1) {
  animation-delay: 0.04s;
}
.veritas-doc > .panel-card:nth-child(2) {
  animation-delay: 0.1s;
}
.veritas-doc > .panel-card:nth-child(3) {
  animation-delay: 0.16s;
}

@keyframes veritas-panel-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.veritas-doc .veritas-layer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.veritas-doc .veritas-layer-list li {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.veritas-doc .veritas-layer-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.veritas-doc .veritas-layer-tag {
  display: inline-block;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(122, 212, 255, 0.35);
  padding: 0.35rem 0.6rem;
  border-radius: 0.5rem;
}

.site-footer {
  margin-bottom: 0.5rem;
}

.site-footer-github {
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  transition:
    border-color var(--dur-fast) var(--ease-spring),
    background var(--dur-fast) var(--ease-spring),
    box-shadow var(--dur-med) var(--ease-spring),
    transform 0.2s var(--ease-spring);
}

.site-footer-github:hover {
  border-color: rgba(142, 219, 255, 0.45);
  background: var(--surface-hover);
  box-shadow: 0 0 0 1px rgba(142, 219, 255, 0.14);
}

.site-footer-github:active {
  transform: scale(0.98);
}

.site-footer-github:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* VeritasMKT — Data Source Badges (semantica colore paper) */
.vmkt-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid transparent;
  line-height: 1.2;
  white-space: nowrap;
  flex-shrink: 0;
}

.vmkt-badge--delayed {
  color: #422006;
  background: #fde047;
  border-color: #eab308;
}

.vmkt-badge--live {
  color: #ecfdf5;
  background: #047857;
  border-color: #059669;
}

.vmkt-badge--bce {
  color: #eff6ff;
  background: #1d4ed8;
  border-color: #2563eb;
}

.vmkt-badge--estimated,
.vmkt-badge--simulated {
  color: #e2e8f0;
  background: #475569;
  border-color: #64748b;
}

.vmkt-badge--community {
  color: #f1f5f9;
  background: #4c6d88;
  border-color: #5b88aa;
}

.vmkt-badge--cached {
  color: #fef3c7;
  background: #78350f;
  border-color: #92400e;
}

.vmkt-disclaimer {
  color: var(--text-muted);
  line-height: 1.55;
  border: 1px solid var(--border-subtle);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.vmkt-sparkline {
  display: block;
  width: 100%;
  height: 2rem;
  opacity: 0.95;
}

.vmkt-chart-ranges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
  max-width: 100%;
}

/* Riduzione movimento — rispetto accessibilità */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .main-scroll,
  #articleModal .overflow-y-auto {
    scroll-behavior: auto;
  }

  .news-card,
  .view-section,
  .toast-enter,
  .nav-dock,
  .veritas-doc > .panel-card {
    animation: none !important;
  }

  .nav-item.active .material-symbols-outlined {
    transform: none;
  }

  .progress-fill {
    transition-duration: 0.05s;
  }

  .modal-panel-motion {
    transition-duration: 0.2s;
  }
}