@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

:root {
  --accent:   #6c63ff;
  --accent2:  #a855f7;
  --bg:       #f8f9fc;
  --white:    #ffffff;
  --border:   #e4e7ef;
  --text:     #1a1d2e;
  --muted:    #6b7280;
  --danger:   #ef4444;
  --r:        12px;
  --shadow:   0 2px 12px rgba(108,99,255,.08), 0 1px 3px rgba(0,0,0,.05);
  --shadow-lg:0 8px 32px rgba(108,99,255,.12), 0 2px 8px rgba(0,0,0,.06);
}

/* Wrapper */
.ptcp-app {
  font-family: 'Nunito', -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  border-radius: 20px;
  padding: 2rem;
  max-width: 960px;
  margin: 2rem auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  box-sizing: border-box;
}
.ptcp-app *, .ptcp-app *::before, .ptcp-app *::after { box-sizing: border-box; }

/* Header */
.ptcp-header { text-align: center; margin-bottom: 1.75rem; }
.ptcp-title {
  font-size: 1.7rem; font-weight: 800; letter-spacing: -.03em; margin: 0 0 .4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.ptcp-subtitle { color: var(--muted); font-size: .925rem; margin: 0; font-weight: 500; }

/* Workspace */
.ptcp-workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

/* Panel */
.ptcp-panel {
  background: var(--white);
  border-radius: var(--r);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* Section label */
.ptcp-section-label {
  display: block;
  font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); padding: 1rem 1rem .5rem; margin: 0;
}

/* ── Upload Zone ── */
.ptcp-upload-zone {
  min-height: 210px;
  border: 2.5px dashed var(--border);
  border-radius: var(--r);
  background: var(--bg);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s, transform .15s;
  outline: none;
  position: relative;
}
.ptcp-upload-zone:hover, .ptcp-upload-zone:focus, .ptcp-upload-zone.drag-over {
  border-color: var(--accent); background: #f0effe; transform: translateY(-1px);
}
.ptcp-upload-idle {
  display: flex; flex-direction: column; align-items: center;
  gap: .6rem; padding: 1.75rem 1.5rem; text-align: center; pointer-events: none;
}
.ptcp-upload-icon-wrap {
  width: 64px; height: 64px; background: #ede9ff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: var(--accent);
}
.ptcp-upload-text { font-size: .9rem; font-weight: 600; color: var(--text); margin: 0; }
.ptcp-upload-link { color: var(--accent); text-decoration: underline; }
.ptcp-upload-hint { font-size: .77rem; color: var(--muted); margin: 0; }

.ptcp-upload-preview { position: relative; display: none; width: 100%; }
.ptcp-upload-preview img {
  width: 100%; display: block; max-height: 260px;
  object-fit: contain; background: #f5f3ff; border-radius: var(--r);
}
.ptcp-change-btn {
  position: absolute; top: .5rem; right: .5rem;
  background: rgba(255,255,255,.92); border: 1px solid var(--border); border-radius: 20px;
  padding: .3rem .7rem; font-size: .75rem; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; gap: .3rem; color: var(--text);
  backdrop-filter: blur(4px); transition: background .15s; font-family: inherit;
}
.ptcp-change-btn:hover { background: #fff; }

/* ── Controls ── */
#ptcp-controls { display: none; padding: 0 1rem 1rem; }
.ptcp-styles {
  display: grid; grid-template-columns: 1fr 1fr; gap: .45rem; margin-bottom: .875rem;
}
.ptcp-style-card {
  padding: .6rem .75rem; border: 2px solid var(--border); border-radius: 8px; cursor: pointer;
  transition: border-color .15s, background .15s; background: var(--white);
  display: flex; flex-direction: column; gap: .1rem;
}
.ptcp-style-card input { display: none; }
.ptcp-style-card:hover { border-color: #c4b5fd; background: #faf8ff; }
.ptcp-style-card.active { border-color: var(--accent); background: #f5f3ff; }
.ptcp-style-name { font-size: .82rem; font-weight: 700; color: var(--text); }
.ptcp-style-card.active .ptcp-style-name { color: var(--accent); }
.ptcp-style-desc { font-size: .72rem; color: var(--muted); line-height: 1.3; }

/* Toggles */
.ptcp-toggles { margin-bottom: .875rem; }
.ptcp-toggle-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: .6rem 0; border-top: 1px solid var(--border); cursor: pointer; user-select: none;
}
.ptcp-toggle-label { font-size: .82rem; font-weight: 700; color: var(--text); }
.ptcp-toggle-sub { display: block; font-size: .72rem; color: var(--muted); }
.ptcp-switch { flex-shrink: 0; }
.ptcp-switch input { display: none; }
.ptcp-switch-track {
  display: block; width: 38px; height: 21px; background: #d1d5db;
  border-radius: 11px; position: relative; cursor: pointer;
  transition: background .2s;
}
.ptcp-switch-track::after {
  content:''; position: absolute; top: 3px; left: 3px;
  width: 15px; height: 15px; background: #fff; border-radius: 50%;
  transition: left .2s; box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.ptcp-switch input:checked + .ptcp-switch-track { background: var(--accent); }
.ptcp-switch input:checked + .ptcp-switch-track::after { left: 20px; }

/* Generate button */
.ptcp-btn-generate {
  width: 100%; padding: .8rem; font-family: inherit; font-size: .95rem; font-weight: 800;
  color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none; border-radius: 10px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  box-shadow: 0 4px 14px rgba(108,99,255,.35);
  transition: opacity .2s, transform .15s, box-shadow .2s;
}
.ptcp-btn-generate:hover { opacity: .92; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(108,99,255,.4); }
.ptcp-btn-generate:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* ── Right panel ── */
.ptcp-panel-right { min-height: 360px; }

.ptcp-result-empty,
.ptcp-result-loading,
.ptcp-result-error,
.ptcp-result-success { width: 100%; }

/* Empty */
.ptcp-result-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; color: #c4cdd6; text-align: center; padding: 1.5rem;
}
.ptcp-result-empty p { font-size: .85rem; margin: .5rem 0 0; }

/* Loading */
.ptcp-result-loading {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; padding: 1.5rem;
}
.ptcp-spinner-wrap { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.ptcp-spinner {
  width: 44px; height: 44px;
  border: 4px solid #e9e7ff; border-top-color: var(--accent); border-radius: 50%;
  animation: ptcp-spin .7s linear infinite;
}
@keyframes ptcp-spin { to { transform: rotate(360deg); } }
.ptcp-loading-text { font-size: .875rem; font-weight: 600; color: var(--muted); margin: 0; animation: ptcp-fade 2s ease-in-out infinite; }
@keyframes ptcp-fade { 0%,100%{opacity:1} 50%{opacity:.4} }

/* Error */
.ptcp-result-error {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; gap: .75rem; padding: 1.5rem; text-align: center;
}
.ptcp-result-error svg { color: var(--danger); flex-shrink: 0; }
.ptcp-result-error p { font-size: .875rem; font-weight: 600; color: var(--danger); margin: 0; }
.ptcp-btn-retry {
  background: #fef2f2; color: var(--danger); border: 1.5px solid #fecaca; border-radius: 8px;
  padding: .5rem 1.25rem; font-family: inherit; font-weight: 700; font-size: .85rem; cursor: pointer;
}
.ptcp-btn-retry:hover { background: #fee2e2; }

/* Success */
.ptcp-result-success { display: flex; flex-direction: column; padding-bottom: 1rem; }
.ptcp-result-img-wrap {
  border-bottom: 1px solid var(--border);
  background: #fafafa; overflow: hidden;
}
.ptcp-result-img-wrap img { width: 100%; display: block; max-height: 320px; object-fit: contain; }
.ptcp-result-actions {
  display: flex; gap: .5rem; flex-wrap: wrap; padding: .875rem 1rem 0;
}
.ptcp-btn-download {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .6rem 1.125rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff !important; text-decoration: none; border-radius: 8px;
  font-weight: 700; font-size: .82rem; box-shadow: 0 2px 8px rgba(108,99,255,.3);
  transition: opacity .15s, transform .15s;
}
.ptcp-btn-download:hover { opacity: .9; transform: translateY(-1px); }
.ptcp-btn-print, .ptcp-btn-again {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .6rem 1rem; background: var(--white); border: 1.5px solid var(--border);
  border-radius: 8px; font-family: inherit; font-weight: 700; font-size: .82rem;
  cursor: pointer; color: var(--text); transition: background .15s, border-color .15s;
}
.ptcp-btn-print:hover { background: var(--bg); }
.ptcp-btn-again { color: var(--accent); }
.ptcp-btn-again:hover { background: #f5f3ff; border-color: var(--accent); }

/* ── How it works ── */
.ptcp-how {
  display: flex; align-items: center; justify-content: center; gap: .75rem;
  margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--border); flex-wrap: wrap;
}
.ptcp-how-step { display: flex; flex-direction: column; align-items: center; gap: .35rem; text-align: center; flex: 1; min-width: 110px; }
.ptcp-how-num {
  width: 34px; height: 34px; font-weight: 800; font-size: .875rem; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.ptcp-how-step strong { font-size: .82rem; }
.ptcp-how-step span { font-size: .75rem; color: var(--muted); line-height: 1.3; }
.ptcp-how-arrow { color: #c4b5fd; font-size: 1.1rem; flex-shrink: 0; }

/* ── Print ── */
@media print {
  .ptcp-panel-left, .ptcp-how, .ptcp-header, .ptcp-result-actions, .ptcp-section-label { display: none !important; }
  .ptcp-workspace { grid-template-columns: 1fr; }
  .ptcp-result-img-wrap img { max-height: none; }
}

/* ── Responsive ── */
@media (max-width: 660px) {
  .ptcp-app { padding: 1.25rem; border-radius: 14px; }
  .ptcp-workspace { grid-template-columns: 1fr; }
  .ptcp-how-arrow { display: none; }
}