/* ==========================================================================
   Briefing modal — Aeros §13 modal pattern.
   Backdrop + centered card on desktop, slide-up bottom sheet on mobile.
   ========================================================================== */

.briefing-modal {
  position: fixed;
  inset: 0;
  z-index: 11000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 160ms var(--ease-out);
}

.briefing-modal.is-open {
  display: flex;
  opacity: 1;
}

.briefing-modal__card {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--surface-1);
  border-radius: var(--radius-card);
  box-shadow: var(--elevation-modal);
  padding: 32px;
  transform: translateY(8px) scale(0.96);
  transition:
    transform var(--duration-modal) var(--ease-standard),
    opacity var(--duration-modal) var(--ease-standard);
  opacity: 0;
}

.briefing-modal.is-open .briefing-modal__card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.briefing-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: background 120ms var(--ease-out), color 120ms var(--ease-out);
}
.briefing-modal__close:hover {
  background: var(--surface-3);
  color: var(--text-primary);
}
.briefing-modal__close:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.briefing-modal__title {
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  padding-right: 32px;
}

.briefing-modal__subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 24px 0;
  line-height: 1.5;
}

.briefing-modal__field {
  margin-bottom: 16px;
}

.briefing-modal__label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.briefing-modal__input {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 14px;
  outline: none;
  transition: border-color 120ms var(--ease-out), box-shadow 120ms var(--ease-out);
  box-sizing: border-box;
}

.briefing-modal__input::placeholder {
  color: var(--text-muted);
}

.briefing-modal__input:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 2px rgba(59, 114, 237, 0.2);
}

.briefing-modal__field.has-error .briefing-modal__input {
  border-color: var(--state-error);
}
.briefing-modal__field.has-error .briefing-modal__input:focus {
  box-shadow: 0 0 0 2px rgba(229, 72, 77, 0.25);
}

.briefing-modal__error {
  display: none;
  font-size: 12px;
  color: var(--state-error);
  margin-top: 6px;
}
.briefing-modal__field.has-error .briefing-modal__error {
  display: block;
}

/* Honeypot — visually and a11y-hidden, but not display:none (some bots skip
   display:none fields). Stays in the form so it submits. */
.briefing-modal__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.briefing-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.briefing-modal__submit {
  min-width: 140px;
}
.briefing-modal__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Success state ──────────────────────────────────────────────────────── */
.briefing-modal__success {
  text-align: center;
  padding: 16px 0 8px;
}

.briefing-modal__success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius-full);
  background: rgba(77, 212, 172, 0.12);
  color: var(--state-success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.briefing-modal__success-title {
  font-size: 18px;
  color: var(--text-primary);
  font-weight: 500;
  margin: 0 0 8px;
}

.briefing-modal__success-body {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 24px;
  line-height: 1.5;
}

/* ── Mobile bottom sheet ────────────────────────────────────────────────── */
@media (max-width: 767px) {
  .briefing-modal {
    align-items: flex-end;
    padding: 0;
  }
  .briefing-modal__card {
    max-width: 100%;
    max-height: 85vh;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
    transform: translateY(100%);
    padding: 24px 20px 32px;
  }
  .briefing-modal.is-open .briefing-modal__card {
    transform: translateY(0);
  }
  .briefing-modal__actions {
    flex-direction: column-reverse;
  }
  .briefing-modal__submit {
    width: 100%;
  }
}

/* Body scroll lock while modal is open */
body.briefing-modal-open {
  overflow: hidden;
}