/* ═══════════════════════════════════════════════
   READCRAFT — Layout: Header, Main, Panels
   ═══════════════════════════════════════════════ */

/* ═══ HEADER ═══ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8,11,9,0.95); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem; height: 56px;
  display: flex; align-items: center; gap: 1.5rem;
}

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon {
  width: 32px; height: 32px; border: 1.5px solid var(--green); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 0.75rem; font-weight: 600; color: var(--green);
  box-shadow: 0 0 12px rgba(61,220,132,0.2);
  position: relative; overflow: hidden;
}
.logo-icon::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg,rgba(61,220,132,0.1),transparent);
}
.logo-name { font-family: var(--mono); font-size: 0.9rem; font-weight: 600; color: var(--text); letter-spacing: 0.05em; }
.logo-tag  { font-family: var(--mono); font-size: 0.62rem; color: var(--text3); letter-spacing: 0.08em; margin-top: 1px; }

/* Header steps */
.header-steps { display: flex; align-items: center; gap: 0; margin-left: auto; margin-right: auto; }
.hstep {
  display: flex; align-items: center; gap: 8px; padding: 6px 16px;
  font-size: 0.72rem; font-family: var(--mono); color: var(--text3);
  cursor: pointer; transition: all 0.2s; border-bottom: 2px solid transparent;
}
.hstep:hover { color: var(--text2); }
.hstep.active { color: var(--green); border-bottom-color: var(--green); }
.hstep.done { color: var(--text2); }
.hstep.done::after { content: '✓'; color: var(--green); margin-left: 4px; font-size: 0.65rem; }
.hstep-num {
  width: 20px; height: 20px; border-radius: 50%;
  border: 1.5px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.6rem; font-weight: 600; flex-shrink: 0;
}
.hstep.active .hstep-num { background: var(--green); border-color: var(--green); color: #000; }
.hstep-sep { width: 20px; height: 1px; background: var(--border2); }

/* Header right buttons */
.header-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.hbtn {
  padding: 7px 16px; border-radius: var(--r); font-family: var(--mono); font-size: 0.72rem;
  font-weight: 500; cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--border2); background: var(--bg2); color: var(--text2);
}
.hbtn:hover { border-color: var(--green); color: var(--green); background: var(--green4); }
.hbtn.primary { background: var(--green); border-color: var(--green); color: #000; font-weight: 600; }
.hbtn.primary:hover { background: var(--green2); border-color: var(--green2); }

/* ═══ MAIN LAYOUT ═══ */
.main { display: grid; grid-template-columns: 1fr 1fr; height: calc(100vh - 56px); height: calc(100dvh - 56px); }

/* ═══ FORM PANEL ═══ */
.form-panel {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg1);
}
.form-inner { padding: 2rem; max-width: 640px; }

/* ═══ PREVIEW PANEL ═══ */
.preview-panel { background: var(--bg); overflow-y: auto; display: flex; flex-direction: column; }
.preview-toolbar {
  display: flex; align-items: center; gap: 8px; padding: 10px 1.5rem;
  border-bottom: 1px solid var(--border); background: var(--bg1); flex-shrink: 0;
}
.preview-toolbar-title { font-family: var(--mono); font-size: 0.7rem; color: var(--text3); flex: 1; }
.preview-tabs { display: flex; gap: 2px; }
.ptab {
  padding: 5px 12px; border-radius: var(--r); font-family: var(--mono); font-size: 0.7rem;
  color: var(--text3); cursor: pointer; transition: all 0.15s;
}
.ptab:hover { background: var(--bg3); color: var(--text2); }
.ptab.active { background: var(--bg4); color: var(--green); }
.preview-content { flex: 1; overflow-y: auto; padding: 1.5rem; }

/* ═══ EMPTY STATE ═══ */
.empty-preview {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100%; gap: 12px; color: var(--text3); text-align: center; padding: 3rem;
}
.empty-icon  { font-size: 3rem; opacity: 0.2; margin-bottom: 8px; }
.empty-title { font-size: 0.9rem; font-weight: 600; color: var(--text2); }
.empty-hint  { font-size: 0.78rem; line-height: 1.6; }

/* ═══ TOAST ═══ */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--bg3); border: 1px solid var(--border2); color: var(--text);
  padding: 10px 18px; border-radius: var(--r2);
  font-family: var(--mono); font-size: 0.75rem;
  z-index: 9999; transform: translateY(16px); opacity: 0;
  transition: all 0.25s; pointer-events: none; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 8px;
}
.toast.on      { opacity: 1; transform: translateY(0); }
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error   { border-color: var(--red);   color: var(--red);   }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1100px) { .main { grid-template-columns: 1fr; } }

@media (max-width: 768px) {
  .main { grid-template-columns: 1fr; height: calc(100dvh - 56px); }
  .preview-panel { display: none; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .header-steps { display: none; }

  .header { padding: 0 1rem; gap: 0.75rem; }
  .form-inner { padding: 1.5rem 1rem; }
  .preview-content { padding: 1rem; }
  .preview-toolbar { padding: 8px 1rem; }
  .preview-toolbar-title { display: none; }
  .md-stats-label { display: none; }

  /* Toast au-dessus du bouton aperçu mobile */
  .toast { bottom: auto; top: 68px; left: 1rem; right: 1rem; max-width: none; }
}

/* Boutons icône-only sur très petits écrans */
@media (max-width: 480px) {
  .header { height: 52px; padding: 0 0.75rem; }
  .main { height: calc(100dvh - 52px); }
  .logo-tag { display: none; }

  .header-right .hbtn { font-size: 0; padding: 9px; min-width: 36px; min-height: 36px; justify-content: center; gap: 0; }
  .header-right .hbtn svg { width: 16px; height: 16px; flex-shrink: 0; }

  .form-inner { padding: 1rem 0.875rem; }
}

/* ═══ MD STATS LABEL ═══ */
.md-stats-label {
  font-family: var(--mono); font-size: 0.62rem; color: var(--text4);
  letter-spacing: 0.05em; white-space: nowrap; margin-right: 4px;
  transition: color 0.3s;
}
.md-stats-label:not(:empty) { color: var(--text3); }

/* ═══ SAVE INDICATOR ═══ */
.save-indicator {
  position: fixed; bottom: 24px; left: 24px;
  display: flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 0.68rem; color: var(--green3);
  background: var(--bg2); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: var(--r);
  opacity: 0; transform: translateY(8px);
  transition: all 0.25s; pointer-events: none; z-index: 9000;
}
.save-indicator.visible { opacity: 1; transform: translateY(0); }

/* ═══ MOBILE PREVIEW TOGGLE ═══ */
.mobile-preview-btn {
  display: none;
  position: fixed;
  bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  right: 20px; z-index: 500;
  background: var(--green); color: #000; border: none;
  padding: 10px 18px; border-radius: 24px;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  cursor: pointer; box-shadow: 0 4px 16px rgba(61,220,132,0.35);
  align-items: center; gap: 7px; transition: all 0.2s;
}
.mobile-preview-btn:hover { background: var(--green2); transform: translateY(-1px); }

@media (max-width: 768px) {
  .mobile-preview-btn { display: flex; }
  .preview-panel.mobile-open {
    display: flex !important;
    position: fixed; inset: 0; z-index: 400;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .preview-panel.mobile-open .preview-toolbar {
    position: sticky; top: 0; z-index: 1;
    padding-top: max(8px, env(safe-area-inset-top, 8px));
  }
}
.modal-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: var(--r2); padding: 1.75rem;
  width: min(400px, 90vw); box-shadow: var(--shadow);
  transform: translateY(16px); transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-title   { font-family: var(--mono); font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 10px; }
.modal-message { font-size: 0.8rem; color: var(--text3); line-height: 1.6; margin-bottom: 1.5rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }