/* =============================================================================
   Porto Guará — Maritime Motion Layer
   File: css/maritime-motion.css
   Load AFTER css/maritime-system.css. Reuses --ms-* tokens only.
   Performance contract: motion transitions use transform/opacity only.
   Color/border-color/background-color may change for state feedback (≤100ms
   perceptible); never width/height/top/left/margin/box-shadow in transitions.
   ============================================================================= */

:root {
  /* Local aliases — values from maritime-system.css motion tokens */
  --mm-ease: var(--ms-ease-standard);           /* cubic-bezier(0.4, 0, 0.2, 1) */
  --mm-duration: var(--ms-duration-base);       /* 200ms — within 150–250ms */
  --mm-duration-fast: var(--ms-duration-fast);  /* 120ms — hover/press ≤100ms feel */
  --mm-duration-enter: 220ms;                   /* entrance stagger item */
  --mm-z-toast: var(--ms-z-toast);
  --mm-z-sticky: var(--ms-z-sticky);
}

/* -----------------------------------------------------------------------------
   KEYFRAMES (transform + opacity only)
   ----------------------------------------------------------------------------- */
@keyframes mm-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes mm-fade-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(4px); }
}

@keyframes mm-panel-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes mm-panel-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes mm-ripple-expand {
  from { opacity: 0.28; transform: translate(-50%, -50%) scale(0); }
  to   { opacity: 0; transform: translate(-50%, -50%) scale(1); }
}

@keyframes mm-skeleton-shimmer {
  0%   { opacity: 0.45; }
  50%  { opacity: 0.85; }
  100% { opacity: 0.45; }
}

@keyframes mm-toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes mm-toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(6px); }
}

/* -----------------------------------------------------------------------------
   UTILITY — staggered entrance
   ----------------------------------------------------------------------------- */
.mm-stagger-item {
  opacity: 0;
  transform: translateY(8px);
}

.mm-stagger-item.mm-in {
  animation: mm-fade-in var(--mm-duration-enter) var(--mm-ease) forwards;
}

.mm-stagger-item.mm-in-instant {
  opacity: 1;
  transform: none;
}

/* -----------------------------------------------------------------------------
   UTILITY — animated counters
   ----------------------------------------------------------------------------- */
.mm-count,
[data-mm-count] {
  font-family: var(--ms-font-metric);
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
}

/* -----------------------------------------------------------------------------
   UTILITY — ripple / press feedback (absolute; no layout shift)
   ----------------------------------------------------------------------------- */
.mm-ripple-host {
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

.mm-ripple {
  position: absolute;
  left: 0;
  top: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(230, 237, 247, 0.22);
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  will-change: transform, opacity;
  animation: mm-ripple-expand 250ms var(--mm-ease) forwards;
  z-index: 1;
}

.btn.mm-ripple-host .mm-ripple,
.btn-primary.mm-ripple-host .mm-ripple {
  background: rgba(7, 11, 18, 0.22);
}

.btn-accent.mm-ripple-host .mm-ripple,
.btn-secondary.mm-ripple-host .mm-ripple,
.btn-icon.mm-ripple-host .mm-ripple {
  background: rgba(45, 212, 191, 0.28);
}

/* -----------------------------------------------------------------------------
   UTILITY — skeleton loading
   ----------------------------------------------------------------------------- */
.mm-skeleton {
  position: relative;
  pointer-events: none;
  user-select: none;
}

.mm-skeleton > .mm-skeleton-block {
  display: block;
  border-radius: var(--ms-radius-xs);
  background: var(--ms-surface);
  opacity: 0.55;
  animation: mm-skeleton-shimmer 400ms var(--mm-ease) infinite;
}

.mm-skeleton-line {
  height: 10px;
  margin-bottom: var(--ms-space-2);
  border-radius: var(--ms-radius-xs);
  background: var(--ms-elevated);
  opacity: 0.55;
  animation: mm-skeleton-shimmer 400ms var(--mm-ease) infinite;
}

.mm-skeleton-line:last-child {
  margin-bottom: 0;
  width: 62%;
}

.mm-skeleton-hide-children > :not(.mm-skeleton-block):not(.mm-skeleton-line) {
  visibility: hidden;
}

/* -----------------------------------------------------------------------------
   UTILITY — toast host (bottom-right, stacking)
   Distinct from styles.css .toast-container (top-right) — use .mm-toast-host
   ----------------------------------------------------------------------------- */
.mm-toast-host {
  position: fixed;
  right: var(--ms-space-5);
  bottom: var(--ms-space-5);
  z-index: var(--mm-z-toast);
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: var(--ms-space-2);
  max-width: min(360px, calc(100vw - 40px));
  pointer-events: none;
}

.mm-toast {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: var(--ms-space-3);
  min-width: 240px;
  max-width: 100%;
  padding: 12px 14px;
  background: var(--ms-elevated);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-radius-md);
  color: var(--ms-text);
  font-size: var(--ms-text-sm);
  line-height: var(--ms-leading-snug);
  opacity: 0;
  transform: translateY(8px);
  animation: mm-toast-in var(--mm-duration) var(--mm-ease) forwards;
}

.mm-toast.mm-toast--out {
  animation: mm-toast-out var(--mm-duration-fast) var(--ms-ease-exit) forwards;
}

.mm-toast--success { border-left: 3px solid var(--ms-accent); }
.mm-toast--error   { border-left: 3px solid var(--ms-danger); }
.mm-toast--warning { border-left: 3px solid var(--ms-amber); }
.mm-toast--info    { border-left: 3px solid var(--ms-info); }

.mm-toast__body {
  flex: 1;
  min-width: 0;
}

.mm-toast__title {
  font-weight: var(--ms-weight-semibold);
  font-size: var(--ms-text-sm);
  color: var(--ms-text);
  margin-bottom: 2px;
}

.mm-toast__msg {
  font-size: var(--ms-text-xs);
  color: var(--ms-text-secondary);
}

.mm-toast__close {
  flex-shrink: 0;
  margin: -2px -4px 0 0;
  padding: 4px 6px;
  border: 0;
  background: transparent;
  color: var(--ms-text-dim);
  font-size: var(--ms-text-base);
  line-height: 1;
  cursor: pointer;
  border-radius: var(--ms-radius-xs);
  transition: color var(--mm-duration-fast) var(--mm-ease),
              opacity var(--mm-duration-fast) var(--mm-ease);
}

.mm-toast__close:hover {
  color: var(--ms-text);
}

.mm-toast__close:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* -----------------------------------------------------------------------------
   UTILITY — tab / panel crossfade
   ----------------------------------------------------------------------------- */
.mm-tab-panel {
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: auto;
}

.mm-tab-panel.mm-tab-panel--active {
  position: relative;
  inset: auto;
  opacity: 1;
  transform: none;
  pointer-events: auto;
  animation: mm-panel-in var(--mm-duration) var(--mm-ease) both;
}

.mm-tab-panel.mm-tab-panel--exit {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  animation: mm-panel-out var(--mm-duration-fast) var(--ms-ease-exit) both;
}

.mm-tab-panels {
  position: relative;
}

/* -----------------------------------------------------------------------------
   UTILITY — scroll progress (long documents)
   ----------------------------------------------------------------------------- */
.mm-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  z-index: var(--mm-z-sticky);
  pointer-events: none;
  transform-origin: left center;
  transform: scaleX(0);
  background: var(--ms-accent);
  opacity: 0.9;
  will-change: transform;
}

/* =============================================================================
   COMPONENT HOVER / ACTIVE / FOCUS
   Mapping cites index.html + styles.css / maritime-system.css discovery lines.
   Interactive response within ~100ms via --mm-duration-fast (120ms).
   ============================================================================= */

/* —— Buttons ——
   .btn           index.html:102,333  styles.css:113  maritime-system.css:976
   .btn-primary   index.html:102      styles.css:114  maritime-system.css:1003
   .btn-accent    index.html:333      styles.css:117  maritime-system.css:1017
   .btn-secondary index.html:937      styles.css:119  maritime-system.css:1029
   .btn-danger    styles.css:122      maritime-system.css:1039
   .btn-sm        index.html:333      styles.css:121  maritime-system.css:1049
   .btn-icon      index.html:207–219  styles.css:124  maritime-system.css:1054
   .btn-glow      index.html:102      styles.css:116  maritime-system.css:1070
*/
.btn,
.btn-icon {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.btn:hover,
.btn-icon:hover {
  transform: translateY(-1px);
}

.btn:active,
.btn-icon:active {
  transform: scale(0.98);
  transition-duration: 80ms;
}

.btn:focus-visible,
.btn-icon:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

.btn-primary:hover {
  opacity: 0.96;
}

/* —— Nav items ——
   .nav-item  index.html:245–262  styles.css:177  maritime-system.css:644
*/
.nav-item {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.nav-item:hover {
  transform: translateX(2px);
}

.nav-item:active {
  transform: translateX(1px) scale(0.99);
  transition-duration: 80ms;
}

.nav-item:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— Cards / panels ——
   .ov-card       index.html:341+   styles.css:235  maritime-system.css:712
   .party-box     index.html:413    styles.css:312  maritime-system.css:713
   .comp-card     styles.css:1770   maritime-system.css:714  (grid index.html:1794)
   .fin-kpi-card  index.html:1908+  styles.css:1906 maritime-system.css:717
   .news-article-card  styles.css:4421 maritime-system.css:716
   .vital         index.html:344    styles.css:276  maritime-system.css:719
   .kpi           index.html:400    styles.css:305  maritime-system.css:806
   .stat-card     styles.css:493
*/
.ov-card,
.party-box,
.comp-card,
.fin-kpi-card,
.news-article-card,
.stat-card,
.kpi {
  transition:
    border-color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.ov-card:hover,
.comp-card:hover,
.fin-kpi-card:hover,
.news-article-card:hover,
.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--ms-border-strong);
}

.kpi:hover,
.party-box:hover {
  transform: translateY(-1px);
  border-color: var(--ms-border-strong);
}

.ov-card:active,
.comp-card:active,
.fin-kpi-card:active,
.stat-card:active {
  transform: translateY(0) scale(0.995);
  transition-duration: 80ms;
}

/* —— Form inputs ——
   .form-input           index.html:96,100,1139  styles.css:109  maritime-system.css:1094
   .sidebar-search-input index.html:241          maritime-system.css:631
*/
.form-input,
.sidebar-search-input,
input[type='text'],
input[type='password'],
input[type='email'],
input[type='number'],
input[type='search'],
select,
textarea {
  transition:
    border-color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease);
}

.form-input:hover,
.sidebar-search-input:hover {
  border-color: var(--ms-border-strong);
}

.form-input:focus,
.form-input:focus-visible,
.sidebar-search-input:focus,
.sidebar-search-input:focus-visible,
input[type='text']:focus-visible,
input[type='password']:focus-visible,
input[type='search']:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--ms-accent);
  outline: 2px solid transparent; /* ring via system box-shadow; keep focus visible */
  /* Prefer outline when system shadow is stripped by consumers */
}

/* —— Language toggle ——
   .lang-toggle-btn  index.html:202  styles.css:423  maritime-system.css:1174
*/
.lang-toggle-btn {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.lang-toggle-btn:hover {
  transform: translateY(-1px);
}

.lang-toggle-btn:active {
  transform: scale(0.98);
  transition-duration: 80ms;
}

.lang-toggle-btn:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— Sidebar collapse ——
   .sidebar-collapse-btn  index.html:267  styles.css:3490
*/
.sidebar-collapse-btn {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.sidebar-collapse-btn:hover {
  transform: scale(1.04);
}

.sidebar-collapse-btn:active {
  transform: scale(0.96);
  transition-duration: 80ms;
}

.sidebar-collapse-btn:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— Filter / tab chips ——
   .news-filter-btn    index.html:534–540  styles.css:4393
   .act-filter         index.html:2017–2022 styles.css:2043  maritime-system.css:1144
   .vessel-filter-tab  index.html:1548–1563 maritime-system.css:1145
   .mtab-btn           maritime-system.css:1143
   .reg-chip           styles.css:323  maritime-system.css:891
*/
.news-filter-btn,
.act-filter,
.vessel-filter-tab,
.mtab-btn,
.reg-chip {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.news-filter-btn:hover,
.act-filter:hover,
.vessel-filter-tab:hover,
.mtab-btn:hover,
.reg-chip:hover {
  transform: translateY(-1px);
}

.news-filter-btn:active,
.act-filter:active,
.vessel-filter-tab:active,
.mtab-btn:active,
.reg-chip:active {
  transform: scale(0.98);
  transition-duration: 80ms;
}

.news-filter-btn:focus-visible,
.act-filter:focus-visible,
.vessel-filter-tab:focus-visible,
.mtab-btn:focus-visible,
.reg-chip:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— AIS / proactive brief buttons ——
   .ais-refresh-btn  index.html:719–721,856,872,888
   .pb-btn           index.html:313,317
*/
.ais-refresh-btn,
.pb-btn {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    border-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.ais-refresh-btn:hover,
.pb-btn:hover {
  transform: translateY(-1px);
}

.ais-refresh-btn:active,
.pb-btn:active {
  transform: scale(0.97);
  transition-duration: 80ms;
}

.ais-refresh-btn:focus-visible,
.pb-btn:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— Table rows ——
   .risk-table          index.html:636  styles.css:505,1016
   .market-freight-table index.html:987
   .pa-table            index.html:942
   generic table        maritime-system.css:844
*/
.risk-table tbody tr,
.market-freight-table tbody tr,
.pa-table tbody tr,
table tbody tr {
  transition:
    background-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.risk-table tbody tr:hover,
.market-freight-table tbody tr:hover,
.pa-table tbody tr:hover {
  transform: translateX(2px);
}

/* —— Modal close ——
   .modal-close  styles.css:742  maritime-system.css:1223
*/
.modal-close,
.kpi-dd-close {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    background-color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease),
    transform var(--mm-duration-fast) var(--mm-ease);
}

.modal-close:hover,
.kpi-dd-close:hover {
  transform: scale(1.06);
}

.modal-close:active,
.kpi-dd-close:active {
  transform: scale(0.96);
  transition-duration: 80ms;
}

.modal-close:focus-visible,
.kpi-dd-close:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 2px;
}

/* —— Links (global) ——
   a  maritime-system.css:527
*/
a {
  transition:
    color var(--mm-duration-fast) var(--mm-ease),
    opacity var(--mm-duration-fast) var(--mm-ease);
}

a:active {
  opacity: 0.85;
}

a:focus-visible {
  outline: 2px solid var(--ms-accent);
  outline-offset: 3px;
}

/* —— Module panel entrance refine ——
   .module-panel  index.html:323+  styles.css:205,1028
*/
.module-panel.active {
  animation: mm-panel-in var(--mm-duration) var(--mm-ease) both;
}

/* —— Login card ——
   .login-card  index.html:86  styles.css:98,1063  maritime-system.css:776
*/
.login-card {
  animation: mm-fade-in 240ms var(--mm-ease) both;
}

/* =============================================================================
   REDUCED MOTION — instant state change, no movement
   ============================================================================= */
@media (prefers-reduced-motion: reduce) {
  :root {
    --mm-duration: 0.01ms;
    --mm-duration-fast: 0.01ms;
    --mm-duration-enter: 0.01ms;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .mm-stagger-item {
    opacity: 1;
    transform: none;
  }

  .mm-stagger-item.mm-in {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .mm-ripple {
    display: none;
  }

  .mm-toast,
  .mm-toast.mm-toast--out {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .mm-toast.mm-toast--out {
    opacity: 0;
  }

  .mm-tab-panel,
  .mm-tab-panel.mm-tab-panel--active,
  .mm-tab-panel.mm-tab-panel--exit {
    animation: none;
    transform: none;
  }

  .mm-tab-panel.mm-tab-panel--active {
    opacity: 1;
  }

  .mm-tab-panel:not(.mm-tab-panel--active) {
    opacity: 0;
  }

  .mm-scroll-progress {
    transition: none !important;
  }

  .mm-skeleton-line,
  .mm-skeleton > .mm-skeleton-block {
    animation: none;
    opacity: 0.65;
  }

  .btn:hover,
  .btn-icon:hover,
  .nav-item:hover,
  .ov-card:hover,
  .comp-card:hover,
  .fin-kpi-card:hover,
  .news-article-card:hover,
  .stat-card:hover,
  .kpi:hover,
  .party-box:hover,
  .news-filter-btn:hover,
  .act-filter:hover,
  .vessel-filter-tab:hover,
  .mtab-btn:hover,
  .reg-chip:hover,
  .ais-refresh-btn:hover,
  .pb-btn:hover,
  .lang-toggle-btn:hover,
  .sidebar-collapse-btn:hover,
  .risk-table tbody tr:hover,
  .market-freight-table tbody tr:hover,
  .pa-table tbody tr:hover,
  .modal-close:hover,
  .kpi-dd-close:hover,
  .module-panel.active,
  .login-card {
    transform: none !important;
    animation: none !important;
  }

  .btn:active,
  .btn-icon:active,
  .nav-item:active {
    transform: none !important;
  }
}

/* -----------------------------------------------------------------------------
   Vessel route trails (js/vessel-trails.js) — canvas overlay in Leaflet pane
   Depth encodes recency (drawn in JS); CSS only positions + pointer isolation.
   ----------------------------------------------------------------------------- */
:root {
  --pg-trail-accent: var(--ms-accent);
  --pg-trail-info: var(--ms-info);
  --pg-trail-z: 350;
}

.pg-vessel-trails-canvas {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
  z-index: var(--pg-trail-z);
  /* transform/opacity only if a host ever fades the layer */
  transition: opacity var(--mm-duration, 200ms) var(--mm-ease, cubic-bezier(0.4, 0, 0.2, 1));
}

@media (prefers-reduced-motion: reduce) {
  .pg-vessel-trails-canvas {
    transition: none;
  }
}