/* ===== The Scratching Post - Pink Sparkly Theme ===== */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --pink-50: #fdf2f8;
  --pink-100: #fce7f3;
  --pink-200: #fbcfe8;
  --pink-300: #f9a8d4;
  --pink-400: #f472b6;
  --pink-500: #ec4899;
  --pink-600: #db2777;
  --pink-700: #be185d;
  --pink-800: #9d174d;
  --pink-900: #831843;
  --glitter: rgba(255, 255, 255, 0.6);
  --sparkle: rgba(255, 182, 193, 0.9);
  --shadow-pink: 0 4px 14px rgba(236, 72, 153, 0.25);
  --shadow-glitter: 0 0 20px rgba(255, 182, 193, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(135deg, var(--pink-100) 0%, var(--pink-200) 25%, #fce7f3 50%, var(--pink-200) 75%, var(--pink-100) 100%);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
  min-height: 100vh;
  color: var(--pink-900);
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Sparkle overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20px 30px, var(--glitter), transparent),
    radial-gradient(2px 2px at 40px 70px, var(--sparkle), transparent),
    radial-gradient(2px 2px at 50px 160px, var(--glitter), transparent),
    radial-gradient(2px 2px at 90px 40px, var(--sparkle), transparent),
    radial-gradient(2px 2px at 130px 80px, var(--glitter), transparent);
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}

/* ===== Layout ===== */
.app {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, rgba(253, 242, 248, 0.98) 0%, rgba(252, 231, 243, 0.95) 100%);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--pink-300);
  box-shadow: var(--shadow-pink);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--pink-800);
  font-weight: 800;
  font-size: 1.25rem;
}

.logo:hover {
  color: var(--pink-600);
}

.logo-icon {
  font-size: 1.75rem;
  filter: drop-shadow(0 0 6px var(--pink-400));
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav a {
  color: var(--pink-700);
  text-decoration: none;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 9999px;
  transition: background 0.2s, color 0.2s;
}

.nav a:hover {
  background: var(--pink-200);
  color: var(--pink-800);
}

/* ===== Footer ===== */
.footer {
  position: sticky;
  bottom: 0;
  z-index: 10;
  margin-top: auto;
  background: linear-gradient(0deg, rgba(253, 242, 248, 0.98) 0%, rgba(252, 231, 243, 0.95) 100%);
  backdrop-filter: blur(12px);
  border-top: 2px solid var(--pink-300);
  box-shadow: 0 -4px 14px rgba(236, 72, 153, 0.15);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  padding: 0.65rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pink-700);
}

.footer-inner a {
  color: var(--pink-600);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-inner a:hover {
  color: var(--pink-800);
  text-decoration: underline;
}

.footer-sep {
  color: var(--pink-400);
}

/* ===== Main feed ===== */
.main {
  flex: 1;
  padding: 1rem 0;
}

.feed-title {
  padding: 0 1rem 0.75rem;
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--pink-800);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feed-title-text {
  flex-shrink: 0;
}

.feed-loading-status {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pink-500);
  animation: feedLoadingPulse 1.4s ease-in-out infinite;
}

.feed-loading-status[hidden] {
  display: none;
}

@keyframes feedLoadingPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.feed-title .sparkle {
  font-size: 1.25rem;
  animation: twinkle 1.5s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

/* ===== Feed post enter (prepend) ===== */
#feed post-card {
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

#feed post-card.post-card--enter {
  animation: postCardEnter 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes postCardEnter {
  from {
    opacity: 0;
    transform: translateY(-1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  #feed post-card {
    transition: none;
  }

  #feed post-card.post-card--enter {
    animation: none;
  }
}

/* ===== Prompt API unavailable ===== */
.prompt-unavailable {
  margin: 1.5rem 1rem 2rem;
  padding: 1.75rem 1.5rem;
  text-align: center;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(253, 242, 248, 0.98) 100%);
  border: 2px solid var(--pink-300);
  border-radius: 1rem;
  box-shadow: var(--shadow-pink), var(--shadow-glitter);
}

.prompt-unavailable-icon {
  margin: 0 0 0.5rem;
  font-size: 2.5rem;
  line-height: 1.2;
}

.prompt-unavailable-title {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--pink-800);
}

.prompt-unavailable-text {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--pink-900);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

.prompt-unavailable-text code {
  font-size: 0.85em;
  padding: 0.1em 0.35em;
  border-radius: 0.25rem;
  background: var(--pink-100);
  color: var(--pink-700);
}

.prompt-unavailable-hint {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--pink-500);
}

.model-download .prompt-unavailable-hint {
  margin: 0 0 1.25rem;
  min-height: 1.25rem;
}

.prompt-download-btn {
  display: inline-block;
  margin: 0;
  padding: 0.6rem 1.25rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: var(--shadow-pink);
  transition: background 0.2s, box-shadow 0.2s, opacity 0.2s;
}

.prompt-download-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  box-shadow: var(--shadow-glitter);
}

.prompt-download-btn:disabled {
  opacity: 0.75;
  cursor: wait;
}

/* Post card is a web component; its styles live in post-card.js (shadow DOM) */