/* ─────────────────────────────────────────
   PUBLIC API PLAYGROUND — styles.css
   Design: dark glassmorphism + vibrant accents
   ───────────────────────────────────────── */

/* ── DESIGN TOKENS ── */
:root {
  --bg:           #08090d;
  --surface:      rgba(255, 255, 255, 0.045);
  --surface-hover:rgba(255, 255, 255, 0.075);
  --border:       rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);

  --accent-1: #7c3aed; /* violet */
  --accent-2: #06b6d4; /* cyan */
  --accent-g: linear-gradient(135deg, #7c3aed, #06b6d4);

  --text-primary:   #f1f1f5;
  --text-secondary: #8b8fa8;
  --text-muted:     #4e516a;

  --success: #10b981;
  --error:   #ef4444;
  --warn:    #f59e0b;

  --radius-card: 20px;
  --radius-btn:  12px;
  --radius-sm:   8px;

  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.18);

  --font: 'Inter', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── RESET / BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;

  /* Subtle grid texture */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(124,58,237,0.25) 0%, transparent 65%),
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
}

/* ── LAYOUT ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── HEADER ── */
.site-header {
  position: relative;
  text-align: center;
  padding: 72px 24px 56px;
  overflow: hidden;
}

.header-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(124,58,237,0.22) 0%, transparent 70%);
  pointer-events: none;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.35);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #a78bfa;
  margin-bottom: 20px;
}
.header-badge::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #7c3aed;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.site-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.gradient-text {
  background: var(--accent-g);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-subtitle {
  max-width: 560px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
  font-weight: 400;
}

/* ── CARD GRID ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  padding: 8px 0 64px;
}

/* ── CARD ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  transform: translateY(-3px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.card-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 14px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.card-endpoint {
  font-size: 0.72rem;
  color: var(--accent-2);
  font-weight: 500;
  letter-spacing: 0.03em;
  font-family: 'Courier New', monospace;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: none;
  border-radius: var(--radius-btn);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--transition);
}
.btn:hover::after { opacity: 0.06; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent-g);
  color: #fff;
  box-shadow: 0 4px 18px rgba(124,58,237,0.35);
}
.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(124,58,237,0.55);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-icon { font-size: 1rem; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── RESULT AREA ── */
.result-area {
  min-height: 80px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  transition: background var(--transition);
}

.placeholder-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── LOADING STATE ── */
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.spinner {
  width: 34px; height: 34px;
  border: 3px solid rgba(124,58,237,0.2);
  border-top-color: #7c3aed;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ── ERROR STATE ── */
.error-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius-sm);
  padding: 14px;
  width: 100%;
}
.error-icon { font-size: 1.1rem; flex-shrink: 0; }
.error-msg {
  font-size: 0.85rem;
  color: #fca5a5;
  line-height: 1.5;
}

/* ── DOG RESULT ── */
.dog-result { width: 100%; text-align: center; }
.dog-image {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  display: block;
}
.dog-breed {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-2);
}
.dog-breed span { color: var(--text-primary); }

/* ── EXTRA CONTROLS ── */
.extra-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.copy-feedback {
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 600;
  animation: fadeIn 0.3s ease;
}

/* ── JOKE RESULT ── */
.joke-box { width: 100%; }
.joke-setup {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.6;
}
.joke-divider {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 10px 0;
}
.joke-punchline {
  font-size: 1rem;
  font-weight: 600;
  color: var(--warn);
  line-height: 1.5;
}

/* ── USER RESULT ── */
.user-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: center;
}
.user-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  border: 3px solid rgba(124,58,237,0.5);
  object-fit: cover;
}
.user-name {
  font-size: 1.1rem;
  font-weight: 700;
}
.user-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
  text-align: left;
  margin-top: 4px;
}
.detail-chip {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}
.detail-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.detail-value {
  font-size: 0.82rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* ── POST RESULT ── */
.posts-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.post-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}
.post-index {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7c3aed;
  margin-bottom: 6px;
}
.post-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  text-transform: capitalize;
}
.post-body {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
  text-transform: capitalize;
}

/* ── UTILITY ── */
.hidden { display: none !important; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-area > * { animation: fadeIn 0.35s ease; }

/* ── FOOTER ── */
.site-footer {
  text-align: center;
  padding: 28px 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr; }
  .user-details { grid-template-columns: 1fr; }
  .site-title { font-size: 2rem; }
}