/* ===========================================
   TWEAKS PANEL
   =========================================== */
.tweaks-panel {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 320px;
  background: rgba(18, 12, 9, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line-hi);
  border-radius: 14px;
  z-index: 1000;
  font-family: var(--f-body);
  display: none;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6);
  max-height: calc(100vh - 40px);
  overflow: hidden;
  flex-direction: column;
}
.tweaks-panel.active { display: flex; }

.tweaks-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.tweaks-title {
  font-family: var(--f-pixel);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--amber);
  text-transform: uppercase;
}
.tweaks-close {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-2);
  border-radius: 4px;
}
.tweaks-close:hover { background: var(--bg-3); color: var(--ink-0); }

.tweaks-body {
  padding: 18px;
  overflow-y: auto;
  display: grid;
  gap: 18px;
}

.tweak {
  display: grid;
  gap: 8px;
}
.tweak-label {
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.tweak-opts {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tweak-opt {
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ink-1);
  cursor: pointer;
  transition: all 160ms;
}
.tweak-opt:hover { border-color: var(--line-amber); }
.tweak-opt.active {
  background: var(--amber);
  color: var(--bg-0);
  border-color: var(--amber);
}

.tweak-swatches {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tweak-swatch {
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 160ms, border-color 160ms;
}
.tweak-swatch:hover { transform: scale(1.1); }
.tweak-swatch.active { border-color: var(--ink-0); }

/* ---------- RGPD checkbox ---------- */
.rgpd-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-2);
  cursor: pointer;
  line-height: 1.5;
}
.rgpd-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--amber);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
}
.rgpd-label a {
  color: var(--amber);
  text-decoration: underline;
}

/* ---------- Form validation ---------- */
.form-field input.invalid,
.form-field select.invalid,
.form-field textarea.invalid {
  border-color: #E85D75 !important;
  box-shadow: 0 0 0 3px rgba(232, 93, 117, 0.15);
}
.form-error {
  margin-top: 6px;
  color: #E85D75;
  font-size: 12px;
  font-family: var(--f-mono);
  display: flex;
  align-items: center;
  gap: 6px;
  animation: errorIn 180ms ease-out;
}
.form-error::before {
  content: "⚠";
  font-size: 13px;
}
@keyframes errorIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.form-global-error {
  background: rgba(232, 93, 117, 0.1);
  border: 1px solid #E85D75;
  color: #FFB3C1;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin: 12px 0;
  animation: errorIn 180ms ease-out;
}
.char-counter {
  margin-top: 4px;
  font-size: 11px;
  font-family: var(--f-mono);
  color: var(--ink-2);
  text-align: right;
}
.char-counter.over { color: #E85D75; }