/* ============================================================
   content-loading-placeholder.css
   Styles for the content loading placeholder component
   ============================================================ */

/* ── Container ─────────────────────────────────────────────── */
.clp-container {
  position: relative;
  padding: 2rem 1.5rem;
  background: #f4f6f9;
  border-radius: 10px;
  min-height: 130px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  box-sizing: border-box;
}

/* ── Progress bar wrapper ───────────────────────────────────── */
.clp-progress-container {
  width: 100%;
  height: 6px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

/* ── Animated, glowing progress bar ────────────────────────── */
.clp-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 3px;
  background: linear-gradient(
    90deg,
    #00d4ff,
    #00ff88,
    #b400ff,
    #ff2d6b,
    #ff8c00,
    #00d4ff
  );
  background-size: 400% 100%;
  /* Paused by default – activated by .clp-active when _start() fires.
   * This prevents the animation running before the element enters the
   * viewport in data-start-event="viewport" mode. */
  animation: clp-shift 3s linear infinite, clp-glow 3s ease-in-out infinite;
  animation-play-state: paused, paused;
  will-change: width, background-position, box-shadow;
}

/* Resume animations once _start() has added .clp-active */
.clp-active .clp-progress-bar {
  animation-play-state: running, running;
}

@keyframes clp-shift {
  0%   { background-position: 0%   50%; }
  100% { background-position: 400% 50%; }
}

@keyframes clp-glow {
  0%,  100% { box-shadow: 0 0 8px  4px rgba(0, 212, 255, 0.7); }
  25%        { box-shadow: 0 0 10px 5px rgba(0, 255, 136, 0.7); }
  50%        { box-shadow: 0 0 12px 6px rgba(180, 0, 255, 0.7); }
  75%        { box-shadow: 0 0 10px 5px rgba(255, 45, 107, 0.7); }
}

/* ── Headline ───────────────────────────────────────────────── */
.clp-headline {
  font-size: 1.15rem;
  font-weight: 700;
  color: #2d3748;
  margin: 0 0 0.6rem;
  line-height: 1.3;
}

/* ── Cycling placeholder text ───────────────────────────────── */
.clp-placeholder-text {
  font-size: 0.9rem;
  color: #718096;
  line-height: 1.5;
  min-height: 1.4em;
  transition: opacity 0.35s ease, transform 0.35s ease;
  will-change: opacity, transform;
}

.clp-placeholder-text.clp-text-out {
  opacity: 0;
  transform: translateY(-6px);
}

.clp-placeholder-text.clp-text-in {
  animation: clp-text-reveal 0.4s ease forwards;
}

@keyframes clp-text-reveal {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* ── Spinner dots (shown below the text) ───────────────────── */
.clp-dots {
  display: flex;
  gap: 6px;
  margin-top: 1rem;
  align-items: center;
  justify-content: center;
}

.clp-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #a0aec0;
  /* Paused by default – activated with .clp-active */
  animation: clp-dot-pulse 1.4s ease-in-out infinite;
  animation-play-state: paused;
}

.clp-dot:nth-child(2) { animation-delay: 0.2s; }
.clp-dot:nth-child(3) { animation-delay: 0.4s; }

/* Resume dot pulse once _start() has added .clp-active */
.clp-active .clp-dot {
  animation-play-state: running;
}

@keyframes clp-dot-pulse {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
  40%            { transform: scale(1.1); opacity: 1;   }
}

/* ── Container fade-out (before content reveal) ─────────────── */
.clp-hiding {
  animation: clp-container-out 0.4s ease forwards;
}

@keyframes clp-container-out {
  from { opacity: 1; transform: scale(1);    }
  to   { opacity: 0; transform: scale(0.97); }
}

/* ── Content reveal (applied to element after placeholder gone) */
.clp-content-reveal {
  animation: clp-content-in 0.55s ease forwards;
}

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

/* ── Error state ────────────────────────────────────────────── */
.clp-error-text {
  font-size: 0.85rem;
  color: #e53e3e;
}

/* ── Reduced-motion: disable decorative animations ──────────── */
@media (prefers-reduced-motion: reduce) {
  /* Progress bar: static solid colour, no shift/glow */
  .clp-progress-bar,
  .clp-active .clp-progress-bar {
    animation: none;
    background: #00d4ff;
    background-size: 100% 100%;
  }

  /* Dots: static, no pulse */
  .clp-dot,
  .clp-active .clp-dot {
    animation: none;
    opacity: 0.7;
    transform: none;
  }

  /* Placeholder text: instant swap, no slide */
  .clp-placeholder-text {
    transition: none;
  }

  /* Container fade-out and content reveal: instant */
  .clp-hiding {
    animation: none;
    opacity: 0;
  }

  .clp-content-reveal {
    animation: none;
  }
}