/* ============================================================
   PYTHON PLAYGROUND — playground.css
============================================================ */

/* ---- Hero / Header ---- */
.pg-hero {
  background: var(--white);
  padding: 6rem 2rem 3rem;
  position: relative;
  overflow: hidden;
}
.pg-hero::before {
  content: '';
  position: absolute;
  top: -150px; right: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(232,84,122,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.pg-hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(155,89,182,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.pg-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.pg-hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  margin: 1rem 0 1.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.pg-hero-sub {
  font-size: 1.05rem;
  color: var(--gray);
  line-height: 1.8;
}

/* ---- Program Selector Section ---- */
.pg-selector-section {
  background: var(--pink-pale);
  padding: 4rem 2rem;
}
.pg-program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.pg-program-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pg-program-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.pg-program-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.pg-program-card:hover::before {
  transform: scaleX(1);
}
.pg-program-card.active {
  border-color: var(--pink);
  background: linear-gradient(135deg, rgba(255,179,198,0.1), rgba(155,89,182,0.05));
  box-shadow: var(--shadow-md);
}
.pg-program-emoji {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}
.pg-program-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.4rem;
}
.pg-program-category {
  display: inline-block;
  background: var(--pink-pale);
  color: var(--pink-dark);
  border: 1px solid var(--pink-light);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}
.pg-program-desc {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ---- Workspace (Code + Terminal Split) ---- */
.pg-workspace {
  background: var(--dark-2);
  padding: 2rem;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.pg-workspace-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  flex: 1;
}

.pg-panel {
  background: var(--dark);
  border: 1px solid rgba(232,84,122,0.1);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.pg-panel-header {
  background: linear-gradient(90deg, rgba(232,84,122,0.08), rgba(155,89,182,0.08));
  border-bottom: 1px solid rgba(232,84,122,0.2);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pg-panel-title {
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pg-panel-title i {
  color: var(--pink);
  font-size: 0.95rem;
}

/* ---- CODE PANEL ---- */
.pg-code-panel {
  min-height: 500px;
}
.pg-code-container {
  flex: 1;
  overflow: auto;
  display: flex;
  background: var(--dark);
  position: relative;
}
.pg-code-numbers {
  background: rgba(232,84,122,0.05);
  border-right: 1px solid rgba(232,84,122,0.15);
  padding: 1rem 0.75rem;
  color: rgba(255,255,255,0.35);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: right;
  flex-shrink: 0;
  user-select: none;
  min-width: 50px;
  display: flex;
  flex-direction: column;
}
.pg-code-numbers div {
  height: 1.6em;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.pg-code-pre,
.pg-code-content {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #E2E8F0;
  white-space: pre;
  overflow: visible;
  margin: 0;
  padding: 1rem 1.25rem;
  flex: 1;
  background: transparent;
  border: none;
  display: flex;
  flex-direction: column;
}
.pg-code-pre {
  padding: 0;
  margin: 0;
}
.pg-code-content {
  padding: 1rem 1.25rem;
}

/* Code syntax highlighting */
.pg-code-keyword { color: #FF79C6; }        /* pink */
.pg-code-string { color: #F1FA8C; }         /* yellow */
.pg-code-number { color: #BD93F9; }         /* purple */
.pg-code-comment { color: #6272A4; }        /* gray-blue */
.pg-code-function { color: #50FA7B; }       /* green */
.pg-code-builtin { color: #8BE9FD; }        /* cyan */

/* Active line highlighting */
.pg-code-line {
  position: relative;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  padding-left: 0.5rem;
}
.pg-code-line.active {
  background: linear-gradient(90deg, rgba(232,84,122,0.25) 0%, rgba(232,84,122,0.05) 100%);
  border-left: 4px solid var(--pink);
  box-shadow: inset 0 0 16px rgba(232,84,122,0.15), 0 0 8px rgba(232,84,122,0.2);
  margin-left: -4px;
  padding-left: calc(0.5rem + 4px);
  color: #FFE8E0;
  font-weight: 500;
}

/* ---- TERMINAL PANEL ---- */
.pg-terminal-panel {
  min-height: 500px;
}
.pg-terminal {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1rem 1.25rem;
  background: rgba(0,0,0,0.4);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #E2E8F0;
}
.pg-terminal-line {
  margin-bottom: 0.5rem;
  word-wrap: break-word;
  white-space: pre-wrap;
}
.pg-terminal-line.pg-terminal-output {
  color: #E2E8F0;
}
.pg-terminal-line.pg-terminal-input {
  color: var(--pink);
}
.pg-terminal-line.pg-terminal-error {
  color: #FF6B6B;
}
.pg-terminal-line.pg-terminal-help {
  color: var(--pink-light);
  font-style: italic;
  opacity: 0.8;
}
.pg-terminal-line.pg-terminal-success {
  color: #50FA7B;
}

/* Terminal input box */
.pg-terminal-input-box {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 0.75rem 0;
  padding: 0.75rem;
  background: rgba(232,84,122,0.08);
  border: 1px solid rgba(232,84,122,0.2);
  border-radius: 4px;
}
.pg-terminal-input-box input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(232,84,122,0.3);
  color: #E2E8F0;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}
.pg-terminal-input-box input::placeholder {
  color: rgba(255,255,255,0.3);
}
.pg-terminal-input-box input:focus {
  outline: none;
  border-color: var(--pink);
  box-shadow: 0 0 8px rgba(232,84,122,0.2);
}
.pg-terminal-input-box button {
  background: var(--pink);
  color: var(--white);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.8rem;
  transition: background 0.2s;
}
.pg-terminal-input-box button:hover {
  background: var(--pink-dark);
}

/* ---- CONTROLS ---- */
.pg-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 1.25rem;
  background: rgba(232,84,122,0.08);
  border: 1px solid rgba(232,84,122,0.2);
  border-radius: var(--radius);
}
.pg-controls-left {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.pg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: 'Inter', sans-serif;
}
.pg-btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.pg-btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.pg-btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pg-btn-outline {
  background: transparent;
  color: var(--pink-dark);
  border: 2px solid var(--pink);
}
.pg-btn-outline:hover:not(:disabled) {
  background: var(--pink-pale);
  transform: translateY(-2px);
}
.pg-btn-outline:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pg-status {
  font-size: 0.85rem;
  color: var(--pink);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pg-status-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(232,84,122,0.3);
  border-top-color: var(--pink);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---- SPEED CONTROL ---- */
.pg-speed-control {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
}
.pg-speed-control label {
  font-weight: 600;
  white-space: nowrap;
}
.pg-speed-control input[type="range"] {
  width: 150px;
  cursor: pointer;
}
.pg-speed-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--pink);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(232,84,122,0.4);
}
.pg-speed-control input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--pink);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px rgba(232,84,122,0.4);
}
.pg-speed-label {
  min-width: 60px;
  text-align: left;
  color: var(--pink);
  font-weight: 600;
  font-size: 0.85rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .pg-controls {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 900px) {
  .pg-workspace-inner {
    grid-template-columns: 1fr;
  }
  .pg-code-container {
    min-height: 400px;
  }
}

@media (max-width: 600px) {
  .pg-hero {
    padding: 4rem 1.5rem 2rem;
  }
  .pg-hero-title {
    font-size: 2rem;
  }
  .pg-program-grid {
    grid-template-columns: 1fr;
  }
  .pg-workspace {
    padding: 1.5rem;
    gap: 1rem;
  }
  .pg-workspace-inner {
    gap: 1rem;
  }
  .pg-controls {
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
  }
  .pg-controls-left {
    width: 100%;
  }
  .pg-btn {
    flex: 1;
    justify-content: center;
  }
  .pg-panel-header {
    padding: 0.75rem 1rem;
  }
  .pg-code-pre,
  .pg-code-content {
    font-size: 0.8rem;
    padding: 0.75rem;
  }
  .pg-code-numbers {
    padding: 0.75rem 0.5rem;
    font-size: 0.8rem;
  }
  .pg-terminal {
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
  }
  .pg-speed-control {
    width: 100%;
  }
  .pg-speed-control input[type="range"] {
    flex: 1;
  }
}

/* ---- UTILITY CLASSES ---- */
.pg-hidden { display: none !important; }
.pg-disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }