/* ============================================================
   DevAlpha — panel.css   Slide-in form panel
   ============================================================ */

/* ── Overlay ── */
.panel-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}
.panel-overlay.open { opacity: 1; pointer-events: all; }

/* ── Drawer ── */
.form-panel {
  position: fixed; top: 0; right: 0;
  width: min(540px, 100vw);
  height: 100dvh;
  background: var(--bg-1);
  border-left: 1px solid var(--glass-border);
  z-index: 1101;
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.38s cubic-bezier(0.32, 0.72, 0, 1);
  overflow: hidden;
}
.panel-overlay.open .form-panel { transform: translateX(0); }

/* ── Header ── */
.panel-header {
  padding: 1.4rem 1.8rem 1rem;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
  background: linear-gradient(135deg, rgba(232,184,64,0.06) 0%, transparent 60%);
}
.panel-header-left { display: flex; flex-direction: column; gap: 0.25rem; }
.panel-tag {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 1.5px;
  color: var(--accent); text-transform: uppercase;
}
.panel-title {
  font-size: 1.35rem; font-weight: 800; letter-spacing: -0.4px;
  background: linear-gradient(135deg, var(--text) 50%, var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin: 0;
}
.panel-close {
  width: 34px; height: 34px; flex-shrink: 0;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-2); font-size: 1rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all var(--t);
  margin-top: 2px;
}
.panel-close:hover { background: var(--border); color: var(--text); border-color: var(--border-strong); }

/* ── Steps indicator ── */
.panel-steps {
  display: flex; align-items: center;
  padding: 1rem 1.8rem 0;
  flex-shrink: 0;
}
.ps-step {
  display: flex; align-items: center; gap: 0.4rem;
  color: var(--text-3); font-size: 0.78rem; font-weight: 600;
  white-space: nowrap; transition: color var(--t);
}
.ps-step.active { color: var(--accent-2); }
.ps-step.done   { color: var(--accent); }

.ps-circle {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1.5px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.68rem; font-weight: 800; flex-shrink: 0;
  transition: all var(--t);
}
.ps-step.active .ps-circle {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: #000;
  box-shadow: 0 0 10px var(--accent-glow);
}
.ps-step.done .ps-circle {
  background: var(--accent); border-color: var(--accent); color: #000;
  font-size: 0.6rem;
}
.ps-connector {
  flex: 1; height: 1px; background: var(--border); margin: 0 0.5rem;
  position: relative; overflow: hidden;
}
.ps-connector::after {
  content: ''; position: absolute; top: 0; left: 0; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.4s ease;
}
.ps-connector.filled::after { width: 100%; }

/* ── Scrollable body ── */
.panel-scroll {
  flex: 1; overflow-y: auto; padding: 1.2rem 1.8rem;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.panel-scroll::-webkit-scrollbar { width: 4px; }
.panel-scroll::-webkit-scrollbar-track { background: transparent; }
.panel-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Step content panels ── */
.panel-step { display: none; }
.panel-step.active { display: block; animation: panelStepIn 0.25s ease; }

@keyframes panelStepIn {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.panel-step h3 {
  font-size: 1.1rem; font-weight: 800; margin-bottom: 0.2rem; letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--text) 50%, var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.panel-step-desc {
  font-size: 0.82rem; color: var(--text-2); margin-bottom: 1.2rem; line-height: 1.5;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

/* ── Type cards (service / project) ── */
.panel-types {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem;
  margin-bottom: 1.2rem;
}
@media (min-width: 400px) {
  .panel-types { grid-template-columns: repeat(3, 1fr); }
}

.panel-type-card { cursor: pointer; }
.panel-type-card input { display: none; }
.panel-type-inner {
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem;
  padding: 0.8rem 0.5rem;
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 10px; font-size: 0.74rem; font-weight: 600;
  color: var(--text-2); transition: all var(--t); text-align: center;
}
.panel-type-inner i { font-size: 1.15rem; color: var(--text-3); transition: color var(--t); }
.panel-type-card:hover .panel-type-inner {
  border-color: rgba(232,184,64,0.35); background: rgba(232,184,64,0.05); color: var(--text);
}
.panel-type-card:hover .panel-type-inner i { color: var(--accent); }
.panel-type-card input:checked ~ .panel-type-inner {
  border-color: var(--accent);
  background: var(--accent);
  color: #1A1007;
  box-shadow: 0 2px 12px rgba(232,184,64,0.4);
}
.panel-type-card input:checked ~ .panel-type-inner i {
  color: #1A1007;
}
.panel-type-error { outline: 2px solid #ef4444; border-radius: 12px; }

/* ── Sujet chips ── */
.panel-sujet-chips {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem;
}
.sujet-chip {
  padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-2);
  cursor: pointer; transition: all var(--t);
}
.sujet-chip.selected {
  background: rgba(232,184,64,0.12); border-color: var(--accent); color: var(--accent-2);
}

/* ── Success state ── */
.panel-success {
  text-align: center; padding: 2.5rem 1rem;
  animation: panelStepIn 0.3s ease;
}
.panel-success-icon {
  width: 68px; height: 68px; border-radius: 50%;
  border: 2px solid var(--accent);
  background: rgba(232,184,64,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--accent-2); margin: 0 auto 1.5rem;
  animation: popIn 0.5s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 0 28px rgba(232,184,64,0.18);
}
@keyframes popIn {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.panel-success h3 {
  font-size: 1.4rem; font-weight: 800; margin-bottom: 0.6rem;
  background: linear-gradient(135deg, var(--text), var(--accent-2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.panel-success p { color: var(--text-2); font-size: 0.9rem; line-height: 1.65; }
.panel-success strong { color: var(--accent-2); }

/* ── Footer ── */
.panel-footer {
  padding: 1rem 1.8rem;
  border-top: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-shrink: 0;
  background: var(--bg-1);
}
.pf-step-info { font-size: 0.78rem; color: var(--text-3); font-weight: 500; }
.pf-btn {
  padding: 0.6rem 1.1rem; border-radius: 10px; font-size: 0.84rem;
  font-weight: 700; cursor: pointer; display: flex; align-items: center; gap: 0.4rem;
  transition: all var(--t); font-family: inherit;
}
.pf-back {
  background: transparent; border: 1px solid var(--border); color: var(--text-2);
}
.pf-back:hover { border-color: var(--border-strong); color: var(--text); }
.pf-back:disabled, .pf-back[hidden] { display: none; }
.pf-next {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; color: #000;
  box-shadow: 0 4px 14px rgba(232,184,64,0.3);
}
.pf-next:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,184,64,0.4); }
.pf-next:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.pf-close-btn {
  background: var(--bg-hover); border: 1px solid var(--border); color: var(--text-2);
}
.pf-close-btn:hover { background: var(--border); color: var(--text); }

/* ── Mobile ── */
@media (max-width: 540px) {
  .form-panel { width: 100vw; border-left: none; }
  .panel-header { padding: 1.2rem 1.2rem 0.8rem; }
  .panel-scroll { padding: 1rem 1.2rem; }
  .panel-footer { padding: 0.8rem 1.2rem; }
  .panel-steps { padding: 0.8rem 1.2rem 0; }
  .form-row { grid-template-columns: 1fr; }
}