/* ==========================================================================
   Agendia — Composants
   Buttons, inputs, cards, header. Cohérent MonEspaceACM marbre.
   ========================================================================== */

/* --------- HEADER style landing MonEspaceACM ---------- */
.site-header {
  background: var(--color-navy);
  color: #fff;
  padding: 18px 0;
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-sky), var(--color-sky-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-sub {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
}

/* --------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
  letter-spacing: -0.005em;
}

.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: 0 2px 8px rgba(12, 27, 77, 0.18);
}

.btn-primary:hover {
  background: var(--btn-primary-bg-hover);
  color: var(--btn-primary-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(12, 27, 77, 0.28);
}

.btn-primary:active {
  background: var(--btn-primary-bg-active);
  transform: translateY(0);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--btn-primary-focus-ring);
  outline-offset: 2px;
}

.btn-primary:disabled,
.btn-primary[disabled] {
  background: var(--btn-primary-bg-disabled);
  color: var(--btn-primary-text-disabled);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  background: var(--color-bg-secondary);
  color: var(--color-navy);
}

.btn-danger {
  background: var(--btn-danger-bg);
  color: #fff;
  box-shadow: 0 2px 8px rgba(255, 71, 87, 0.18);
}

.btn-danger:hover {
  background: var(--btn-danger-bg-hover);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

/* Spinner inline pour bouton */
.btn .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --------- Cards ---------- */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--shadow-sm);
}

.card + .card {
  margin-top: 20px;
}

/* --------- Form ---------- */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--border-radius);
  background: var(--color-card);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px var(--btn-primary-focus-ring);
}

.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-sans);
}

.form-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.form-error {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--color-danger);
  font-weight: 500;
}

/* --------- Alerts ---------- */
.alert {
  padding: 14px 18px;
  border-radius: var(--border-radius);
  font-size: 0.92rem;
  margin-bottom: 18px;
  border-left: 4px solid;
}

.alert-error {
  background: var(--color-danger-subtle);
  border-left-color: var(--color-danger);
  color: #7A1F28;
}

.alert-success {
  background: var(--color-success-subtle);
  border-left-color: var(--color-success);
  color: #00574A;
}

.alert-info {
  background: var(--color-sky-pale);
  border-left-color: var(--color-sky);
  color: #064B6E;
}