/* Appily thirtyone — Cold Chain River track & support (unique a31-river layout) */

.page-track-river {
  --rv-sky: #b3e5fc;
  --rv-sky-deep: #81d4fa;
  --rv-water: #4fc3f7;
  --rv-water-deep: #0288d1;
  --rv-bank: #aed581;
  --rv-bank-deep: #689f38;
  --rv-dock: #6d4c41;
  --rv-dock-light: #8d6e63;
  --rv-paper: #fffdf7;
  --rv-ink: #1c1c1c;
  --rv-muted: #546e7a;
  --rv-line: rgba(2, 136, 209, 0.18);
  --rv-chill: #e1f5fe;
  --rv-alert: #ff6d00;
  --rv-miss: #ef5350;
  background: linear-gradient(180deg, var(--rv-sky) 0%, #e1f5fe 220px, #f7fbfd 100%);
}

.page-track-river .page-main {
  padding-top: 0;
}

.a31-river {
  padding: 0 0 3.5rem;
}

/* ── Sky header ── */
.a31-river-head {
  position: relative;
  padding: 2.25rem 0 1.5rem;
  overflow: hidden;
}

.a31-river-head-sky {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #4fc3f7 0%, var(--rv-sky) 55%, transparent 100%);
  opacity: 0.45;
  pointer-events: none;
}

.a31-river-cloud {
  position: absolute;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  filter: blur(1px);
  animation: a31RiverCloud 28s linear infinite;
}

.a31-river-cloud-a {
  width: 120px;
  height: 36px;
  top: 18%;
  left: -140px;
}

.a31-river-cloud-b {
  width: 90px;
  height: 28px;
  top: 32%;
  left: -100px;
  animation-delay: -12s;
  animation-duration: 34s;
}

@keyframes a31RiverCloud {
  from { transform: translateX(0); }
  to { transform: translateX(calc(100vw + 280px)); }
}

.a31-river-head-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: end;
}

.a31-river-kicker {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--a31-purple);
}

.a31-river-head h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  line-height: 1.05;
  color: var(--rv-ink);
}

.a31-river-head h1 em {
  font-style: italic;
  color: var(--rv-water-deep);
}

.a31-river-lede {
  margin: 0;
  max-width: 48ch;
  font-size: 0.94rem;
  color: var(--rv-muted);
  line-height: 1.6;
}

.a31-river-gauge {
  position: relative;
  text-align: center;
  padding: 1rem 1.15rem;
  min-width: 130px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  border: 3px solid var(--rv-line);
  box-shadow: 0 12px 32px rgba(2, 136, 209, 0.12);
}

.a31-river-gauge-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px dashed rgba(2, 136, 209, 0.25);
  animation: a31RiverSpin 18s linear infinite;
}

@keyframes a31RiverSpin {
  to { transform: rotate(360deg); }
}

.a31-river-gauge strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--rv-water-deep);
  line-height: 1;
}

.a31-river-gauge span:last-child {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--rv-muted);
  max-width: 10ch;
  margin-inline: auto;
  line-height: 1.3;
}

.a31-river-gauge.is-found .a31-river-gauge-ring {
  border-color: rgba(104, 159, 56, 0.45);
}

.a31-river-gauge.is-found strong {
  color: var(--rv-bank-deep);
}

.a31-river-gauge.is-miss strong {
  color: var(--rv-miss);
}

/* ── Stage layout ── */
.a31-river-stage {
  display: grid;
  grid-template-columns: minmax(260px, 300px) minmax(0, 1fr);
  gap: 1.75rem;
  align-items: start;
  margin-top: 0.5rem;
}

/* ── Dock kiosk ── */
.a31-river-dock {
  position: relative;
  margin-top: 1rem;
}

.a31-river-dock-roof {
  height: 14px;
  margin: 0 0.75rem;
  border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, var(--rv-dock-light), var(--rv-dock));
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.2);
}

.a31-river-dock-body {
  padding: 1.25rem 1.15rem 1.35rem;
  border-radius: 0 0 18px 18px;
  background: linear-gradient(165deg, #fff 0%, var(--rv-paper) 100%);
  border: 2px solid var(--rv-dock);
  box-shadow: 0 18px 40px rgba(109, 76, 65, 0.15);
}

.a31-river-dock-head {
  margin-bottom: 0.65rem;
}

.a31-river-dock-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.35rem;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--rv-dock);
  color: #fff;
  border-radius: 4px;
}

.a31-river-dock-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--rv-ink);
}

.a31-river-dock-note {
  margin: 0 0 1rem;
  font-size: 0.82rem;
  color: var(--rv-muted);
  line-height: 1.5;
}

.a31-river-field {
  margin-bottom: 0.75rem;
}

.a31-river-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--rv-dock);
}

.a31-river-field input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 2px solid rgba(109, 76, 65, 0.2);
  border-radius: 10px;
  font: inherit;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.a31-river-field input:focus {
  outline: none;
  border-color: var(--rv-water-deep);
  box-shadow: 0 0 0 3px rgba(2, 136, 209, 0.15);
}

.a31-river-dock-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.a31-river-dock-pilings {
  display: flex;
  justify-content: space-around;
  margin-top: -4px;
  padding: 0 1.5rem;
}

.a31-river-dock-pilings span {
  width: 10px;
  height: 28px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--rv-dock-light), #5d4037);
}

/* ── River channel ── */
.a31-river-channel-wrap {
  min-width: 0;
}

.a31-river-channel {
  position: relative;
  padding: 1.5rem 1rem 1.25rem;
  border-radius: 24px;
  background: linear-gradient(180deg, var(--rv-bank) 0%, var(--rv-bank) 18%, var(--rv-water) 18%, var(--rv-water-deep) 100%);
  box-shadow:
    inset 0 4px 0 rgba(255, 255, 255, 0.25),
    0 20px 50px rgba(2, 136, 209, 0.2);
  overflow: hidden;
  transform: perspective(900px) rotateX(var(--river-tilt, 0deg));
  transition: transform 0.35s ease;
}

.a31-river-flow {
  position: absolute;
  left: 0;
  right: 0;
  top: 18%;
  height: 42%;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 24px,
      rgba(255, 255, 255, 0.12) 24px,
      rgba(255, 255, 255, 0.12) 48px
    );
  animation: a31RiverFlow 3.5s linear infinite;
  pointer-events: none;
  opacity: 0.7;
}

@keyframes a31RiverFlow {
  from { transform: translateX(0); }
  to { transform: translateX(48px); }
}

.a31-river-banks {
  position: absolute;
  inset: 0 0 auto;
  height: 18%;
  background:
    radial-gradient(circle at 10% 120%, rgba(255, 255, 255, 0.35) 0 8px, transparent 9px),
    radial-gradient(circle at 35% 80%, rgba(104, 159, 56, 0.5) 0 12px, transparent 13px),
    radial-gradient(circle at 70% 110%, rgba(255, 255, 255, 0.3) 0 6px, transparent 7px);
  pointer-events: none;
}

.a31-river-locks {
  position: relative;
  z-index: 2;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0.25rem 4.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.a31-river-lock {
  position: relative;
  text-align: center;
  padding: 0.65rem 0.35rem 0.75rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 2px solid rgba(2, 136, 209, 0.2);
  transition: background 0.35s, border-color 0.35s, transform 0.35s;
}

.a31-river-lock-gate {
  display: block;
  width: 70%;
  height: 6px;
  margin: 0 auto 0.45rem;
  border-radius: 3px;
  background: #78909c;
  transition: background 0.35s, transform 0.35s;
}

.a31-river-lock-icon {
  display: block;
  font-size: 1.15rem;
  margin-bottom: 0.2rem;
  filter: grayscale(0.6);
  transition: filter 0.35s, transform 0.35s;
}

.a31-river-lock strong {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--rv-ink);
  line-height: 1.25;
}

.a31-river-lock small {
  display: block;
  font-size: 0.62rem;
  color: var(--rv-muted);
  margin-top: 0.15rem;
}

.a31-river-lock-id {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  font-size: 0.58rem;
  font-weight: 800;
  color: rgba(2, 136, 209, 0.45);
}

.a31-river-lock.is-open {
  background: rgba(225, 245, 254, 0.95);
  border-color: rgba(2, 136, 209, 0.45);
}

.a31-river-lock.is-open .a31-river-lock-gate {
  background: var(--rv-water-deep);
  transform: scaleX(0.55);
}

.a31-river-lock.is-open .a31-river-lock-icon {
  filter: none;
}

.a31-river-lock.is-current {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 10px 24px rgba(2, 136, 209, 0.2);
  border-color: var(--a31-yellow);
}

.a31-river-lock.is-current .a31-river-lock-icon {
  transform: scale(1.15);
}

.a31-river-lock.is-drift {
  opacity: 0.55;
  background: rgba(255, 235, 238, 0.75);
  border-color: rgba(239, 83, 80, 0.35);
}

/* ── Floating crate ── */
.a31-river-crate {
  position: absolute;
  z-index: 3;
  left: var(--river-pos, 0%);
  top: 38%;
  transform: translate(-50%, -50%);
  transition: left 1.1s cubic-bezier(0.34, 1.2, 0.64, 1);
  pointer-events: none;
  opacity: 0;
}

.a31-river-crate.is-loaded {
  opacity: 1;
  animation: a31RiverBob 2.8s ease-in-out infinite;
}

.a31-river-crate.is-lost {
  opacity: 1;
  left: 18% !important;
  animation: a31RiverSink 2s ease-in forwards;
}

@keyframes a31RiverBob {
  0%, 100% { transform: translate(-50%, -50%) rotate(-2deg); }
  50% { transform: translate(-50%, calc(-50% - 8px)) rotate(2deg); }
}

@keyframes a31RiverSink {
  0% { transform: translate(-50%, -50%); opacity: 1; }
  100% { transform: translate(-50%, 20px) rotate(12deg); opacity: 0.35; }
}

.a31-river-crate-box {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  font-size: 1.65rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.a31-river-crate-mist {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(225, 245, 254, 0.8);
  animation: a31RiverMist 2s ease-out infinite;
}

@keyframes a31RiverMist {
  0% { transform: scale(0.9); opacity: 0.7; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* ── Readout panel ── */
.a31-river-readout {
  position: relative;
  z-index: 4;
  margin-top: 0.25rem;
}

.a31-river-manifest {
  padding: 1.15rem 1.25rem;
  border-radius: 18px;
  background: var(--rv-paper);
  border: 2px solid rgba(2, 136, 209, 0.2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  animation: a31RiverRise 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes a31RiverRise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

.a31-river-manifest-flag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  margin-bottom: 0.45rem;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--rv-bank-deep);
  color: #fff;
  border-radius: 999px;
}

.a31-river-manifest-head h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--rv-ink);
}

.a31-river-manifest-status {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--rv-chill);
  color: var(--rv-water-deep);
  border-radius: 999px;
}

.a31-river-manifest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin: 1rem 0;
}

.a31-river-manifest-grid div {
  padding: 0.65rem;
  border-radius: 10px;
  background: #f1f8e9;
}

.a31-river-manifest-grid dt {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--rv-muted);
}

.a31-river-manifest-grid dd {
  margin: 0.2rem 0 0;
  font-weight: 800;
  color: var(--rv-ink);
}

.a31-river-manifest-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.a31-river-alert {
  padding: 1.15rem 1.25rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 2px dashed rgba(2, 136, 209, 0.25);
  text-align: center;
}

.a31-river-alert strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--rv-ink);
}

.a31-river-alert p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--rv-muted);
  line-height: 1.55;
}

.a31-river-alert.is-miss {
  border-color: rgba(239, 83, 80, 0.4);
  background: #ffebee;
}

.a31-river-alert.is-miss strong {
  color: var(--rv-miss);
}

/* ── Buoy links ── */
.a31-river-buoys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 2rem;
}

.a31-river-buoy {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  background: #fff;
  border: 2px solid var(--rv-line);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--rv-ink);
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(2, 136, 209, 0.08);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.a31-river-buoy span {
  font-size: 1.1rem;
}

.a31-river-buoy:hover {
  transform: translateY(-3px);
  border-color: var(--rv-water-deep);
  box-shadow: 0 12px 28px rgba(2, 136, 209, 0.15);
  text-decoration: none;
}

@media (max-width: 960px) {
  .a31-river-head-inner {
    grid-template-columns: 1fr;
  }

  .a31-river-stage {
    grid-template-columns: 1fr;
  }

  .a31-river-locks {
    grid-template-columns: repeat(2, 1fr);
    padding-bottom: 5rem;
  }

  .a31-river-buoys {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .a31-river-locks {
    grid-template-columns: 1fr;
  }

  .a31-river-manifest-grid {
    grid-template-columns: 1fr;
  }

  .a31-river-buoys {
    grid-template-columns: 1fr;
  }

  .a31-river-crate {
    top: 42%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .a31-river-flow,
  .a31-river-cloud,
  .a31-river-gauge-ring,
  .a31-river-crate.is-loaded,
  .a31-river-crate-mist {
    animation: none;
  }

  .a31-river-channel {
    transform: none;
  }
}