/* =========================================================
   Canary Wharf Surveyors — Animations & Particles
   ========================================================= */

/* ── Spin keyframe (used for form loading spinner) ── */
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Animated particles canvas ── */
#particles-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ── Typing cursor ── */
.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--gold);
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── Counter animation ── */
.counter { display: inline-block; }

/* ── Pulse ring (trust badges) ── */
@keyframes pulse-ring {
  0%   { transform: scale(1);   opacity: .6; }
  100% { transform: scale(1.4); opacity: 0;  }
}
.pulse-ring {
  position: relative;
}
.pulse-ring::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  animation: pulse-ring 2s ease-out infinite;
}

/* ── Floating badge ── */
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.float-anim { animation: float 4s ease-in-out infinite; }

/* ── Gold shimmer text ── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}
.shimmer-text {
  background: linear-gradient(90deg, var(--gold) 0%, #fff6d0 40%, var(--gold) 60%, #c9842f 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

/* ── Scroll indicator ── */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: rgba(255,255,255,.5);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.scroll-mouse {
  width: 24px; height: 36px;
  border: 2px solid rgba(255,255,255,.4);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 5px;
}
.scroll-wheel {
  width: 4px; height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: scroll-wheel 2s ease infinite;
}
@keyframes scroll-wheel {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* ── Timeline (About page) ── */
.timeline { position: relative; padding: 2rem 0; }
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
  transform: translateX(-50%);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 1rem;
  margin-bottom: 3rem;
  align-items: start;
}
.timeline-item:nth-child(odd) .timeline-content { grid-column: 1; text-align: right; }
.timeline-item:nth-child(odd) .timeline-empty { grid-column: 3; }
.timeline-item:nth-child(even) .timeline-content { grid-column: 3; }
.timeline-item:nth-child(even) .timeline-empty { grid-column: 1; }
.timeline-dot {
  grid-column: 2;
  grid-row: 1;
  width: 48px; height: 48px;
  background: var(--navy);
  border: 3px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-weight: 800;
  font-size: .9rem;
  position: relative;
  z-index: 1;
  margin: 0 auto;
}
.timeline-content {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.timeline-content h4 { margin-bottom: .4rem; }
.timeline-content p { font-size: .88rem; color: var(--muted); margin: 0; }

/* ── Chart wrappers ── */
.chart-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.chart-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.chart-title svg { width: 16px; height: 16px; fill: var(--gold); }

/* ── Survey level cards ── */
.level-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}
.level-card {
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  overflow: hidden;
  transition: all var(--trans);
}
.level-card.featured {
  border-color: var(--gold);
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}
.level-card:hover { box-shadow: var(--shadow-lg); }
.level-header {
  background: var(--navy);
  padding: 1.5rem;
  color: var(--white);
  text-align: center;
}
.level-card.featured .level-header { background: var(--gold); color: var(--navy); }
.level-header .level-num { font-size: 2rem; font-weight: 800; display: block; }
.level-header h3 { font-size: 1rem; margin-top: .25rem; color: inherit; }
.level-body { padding: 1.5rem; }
.level-body ul { list-style: none; }
.level-body ul li {
  padding: .45rem 0;
  font-size: .88rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: .5rem;
}
.level-body ul li:last-child { border: none; }
.level-body ul li::before {
  content: '✓';
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
}
.level-price {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy);
  text-align: center;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.level-price span { font-size: .8rem; font-weight: 400; color: var(--muted); display: block; }

/* ── Back-link ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  transition: color var(--trans);
}
.back-link svg { width: 14px; height: 14px; fill: currentColor; }
.back-link:hover { color: var(--gold); }

/* ── Tag cloud ── */
.tag-cloud { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.tag {
  background: var(--light-bg);
  border: 1px solid var(--border);
  padding: .3rem .75rem;
  border-radius: 50px;
  font-size: .78rem;
  color: var(--navy);
  transition: all var(--trans);
}
.tag:hover { background: var(--navy); color: var(--gold); border-color: var(--navy); }

@media (max-width: 900px) {
  .timeline::before { left: 28px; }
  .timeline-item { grid-template-columns: 60px 1fr; }
  .timeline-item:nth-child(odd) .timeline-content { grid-column: 2; text-align: left; }
  .timeline-item:nth-child(odd) .timeline-empty { display: none; }
  .timeline-item:nth-child(even) .timeline-content { grid-column: 2; }
  .timeline-item:nth-child(even) .timeline-empty { display: none; }
  .timeline-dot { grid-column: 1; }
  .level-cards { grid-template-columns: 1fr; }
  .level-card.featured { transform: none; }
}