/* =====================================================
   Walking DevOps Avatar Styles
   Pixel-perfect alignment with bottom navigation rail,
   section milestone checkpoints, and character physics.
===================================================== */

body {
  padding-bottom: 64px;
}

/* Ground navigation rail fixed to bottom of screen */
#avatar-ground {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 52px;
  z-index: 45;
  background: linear-gradient(180deg, rgba(10, 13, 18, 0.4) 0%, rgba(10, 13, 18, 0.94) 35%, rgba(5, 7, 10, 0.98) 100%);
  border-top: 1px solid rgba(33, 42, 52, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.ground-rail-track {
  position: relative;
  width: 100%;
  max-width: 960px;
  height: 100%;
  margin: 0 auto;
}

/* Rail line passing directly through the center of every milestone dot */
.ground-rail-line {
  position: absolute;
  top: 16px;
  left: 36px;
  right: 36px;
  height: 2px;
  background: rgba(33, 42, 52, 0.9);
  box-shadow: 0 0 6px rgba(94, 234, 212, 0.15);
  border-radius: 1px;
}

/* Glowing progress line running along the rail line */
.ground-rail-progress {
  position: absolute;
  top: 16px;
  left: 36px;
  height: 2px;
  width: 0px;
  max-width: calc(100% - 72px);
  background: linear-gradient(90deg, var(--amber, #ffb454), var(--cyan, #5eead4));
  box-shadow: 0 0 10px var(--cyan, #5eead4), 0 0 4px var(--amber, #ffb454);
  border-radius: 1px;
  transition: width 0.08s linear;
}

/* Milestone buttons along the track */
.ground-milestones {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 24px 0 24px;
  z-index: 2;
}

.milestone-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  color: var(--text-dim, #7c8794);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.5px;
  transition: color 0.25s ease, transform 0.2s ease;
  position: relative;
  min-width: 48px;
}

/* Milestone dot: exactly on the 16px rail line (center at 17px) */
.milestone-btn .m-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #141b24;
  border: 2px solid var(--text-faint, #4d5865);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.milestone-btn:hover .m-dot {
  border-color: var(--cyan, #5eead4);
  background: rgba(94, 234, 212, 0.3);
  transform: scale(1.2);
}

.milestone-btn.active .m-dot {
  background: var(--cyan, #5eead4);
  border-color: #ffffff;
  box-shadow: 0 0 12px var(--cyan, #5eead4), 0 0 4px #ffffff;
  transform: scale(1.35);
}

.milestone-btn .m-label {
  transition: color 0.25s ease, transform 0.2s ease;
}

.milestone-btn:hover .m-label {
  color: var(--cyan, #5eead4);
}

.milestone-btn.active .m-label {
  color: var(--amber, #ffb454);
  font-weight: 700;
  text-shadow: 0 0 10px rgba(255, 180, 84, 0.4);
}

/* Avatar container wrap — anchored at rail baseline (bottom: 36px) */
#avatar-wrap {
  position: fixed;
  bottom: 36px;
  left: 0;
  right: 0;
  height: 0;
  pointer-events: none;
  z-index: 50;
  overflow: visible;
}

/* Avatar unit */
#avatar {
  position: absolute;
  bottom: -3px; /* boots sit directly on top of the 2px rail line! */
  left: 0;
  width: 72px;
  height: 92px;
  margin-left: -36px;
  pointer-events: auto;
  cursor: pointer;
  opacity: 0;
  will-change: transform;
  transition: opacity 0.5s ease;
}

/* Character body containing the SVG */
.avatar-body {
  width: 100%;
  height: 100%;
  will-change: transform;
  transform-origin: 50% 90%;
  filter: drop-shadow(0 0 10px rgba(255, 180, 84, 0.35));
  transition: filter 0.2s ease;
}

#avatar:hover .avatar-body {
  filter: drop-shadow(0 0 18px rgba(255, 180, 84, 0.65)) drop-shadow(0 0 30px rgba(94, 234, 212, 0.3));
}

.avatar-body svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

/* Walk / Idle / Jump frames */
.walk-frame { display: none; }
.idle-frame { display: block; }
.jump-frame { display: none; }

/* Contact shadow on the rail line directly under boots */
.avatar-shadow {
  position: absolute;
  bottom: 1px;
  left: 50%;
  width: 38px;
  height: 6px;
  margin-left: -19px;
  background: radial-gradient(ellipse, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

/* Celebration jump animation on click */
@keyframes avatarCelebration {
  0%   { transform: translateY(0) rotate(0deg) scale(1); }
  25%  { transform: translateY(-24px) rotate(-10deg) scale(1.12); }
  50%  { transform: translateY(-16px) rotate(10deg) scale(1.08); }
  75%  { transform: translateY(-6px) rotate(-4deg) scale(1.04); }
  100% { transform: translateY(0) rotate(0deg) scale(1); }
}

.avatar-body.avatar-celebrate {
  animation: avatarCelebration 0.75s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

/* Speech bubble floating above avatar helmet */
#avatar-speech {
  position: absolute;
  bottom: 96px;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  z-index: 55;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  line-height: 1.4;
  color: #eef2f6;
  background: rgba(16, 21, 28, 0.96);
  border: 1px solid rgba(94, 234, 212, 0.45);
  border-radius: 8px;
  padding: 6px 12px;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6), 0 0 12px rgba(94, 234, 212, 0.2);
  display: flex;
  align-items: center;
  gap: 7px;
}

#avatar-speech::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px 6px 0 6px;
  border-style: solid;
  border-color: rgba(16, 21, 28, 0.96) transparent transparent transparent;
}

#avatar-speech.active {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.speech-tag {
  color: var(--amber, #ffb454);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.5px;
  border-right: 1px solid rgba(255, 180, 84, 0.3);
  padding-right: 6px;
}

.speech-text {
  color: #cdd6e0;
}

/* Dust particles container — anchored at rail baseline */
#avatar-particles {
  position: fixed;
  bottom: 36px;
  left: 0;
  right: 0;
  height: 0;
  pointer-events: none;
  z-index: 46;
  overflow: visible;
}

.walk-dust {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 180, 84, 0.9) 0%, rgba(94, 234, 212, 0.5) 70%, transparent 100%);
  pointer-events: none;
  will-change: transform, opacity;
}

/* Click hint */
.avatar-click-hint {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.58rem;
  color: var(--text-dim, #7c8794);
  letter-spacing: 0.5px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

#avatar:hover .avatar-click-hint {
  opacity: 0.85;
}

/* =====================================================
   Reduced Motion
===================================================== */
@media (prefers-reduced-motion: reduce) {
  #avatar {
    opacity: 1 !important;
    transform: none !important;
    position: static !important;
    margin: 20px auto !important;
    display: block;
    filter: none;
  }
  #avatar-wrap {
    position: relative;
    text-align: center;
    bottom: 0;
    height: auto;
  }
  .avatar-body {
    transform: none !important;
    filter: none;
  }
  #avatar-particles,
  #avatar-speech,
  .avatar-shadow {
    display: none !important;
  }
  #avatar-ground {
    position: static;
    margin-top: 20px;
  }
}

/* =====================================================
   Responsive Mobile
===================================================== */
@media (max-width: 768px) {
  #avatar {
    width: 60px;
    height: 76px;
    margin-left: -30px;
    bottom: -2px;
  }
  #avatar-ground {
    height: 48px;
  }
  .ground-rail-line,
  .ground-rail-progress {
    top: 14px;
    left: 18px;
    right: 18px;
  }
  .ground-milestones {
    padding: 10px 14px 0 14px;
  }
  .milestone-btn {
    min-width: 36px;
    font-size: 0.6rem;
  }
  .milestone-btn .m-dot {
    width: 8px;
    height: 8px;
  }
  #avatar-wrap,
  #avatar-particles {
    bottom: 34px;
  }
  #avatar-speech {
    font-size: 0.65rem;
    padding: 5px 9px;
    bottom: 80px;
    max-width: 240px;
    white-space: normal;
  }
}