/* ==========================================================================
   SIMS Design System: Modals, Forms, Buttons & HTMX Animations
   Branding: Navy Blue Beige Wedding Dark (#FCF1D0 Main)
   Rule F.6 Compliant: Modular stylesheet (<300 lines)
   Rule 2 Compliant: Zero emoji
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-champagne-main, #FCF1D0);
  color: #010736;
  border: 1px solid #FFFFFF;
  box-shadow: 0 4px 15px rgba(252, 241, 208, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: #FFFFFF;
  box-shadow: 0 8px 25px rgba(252, 241, 208, 0.4);
}

.btn-ai {
  background: linear-gradient(135deg, #06B6D4, #3B82F6);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-ai:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.45);
}

.btn-secondary {
  background: rgba(13, 28, 66, 0.85);
  color: var(--text-beige);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(34, 57, 111, 0.9);
  color: #FFFFFF;
  border-color: rgba(252, 241, 208, 0.35);
}

/* Modal Overlay & Card */
.modal-backdrop,
.modal-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: rgba(1, 7, 54, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 20px;
}

.modal-content,
.modal-card {
  background: rgba(13, 28, 66, 0.96);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(252, 241, 208, 0.22);
  border-radius: var(--radius-lg);
  padding: 28px 36px;
  width: 100%;
  max-width: 800px;
  max-height: calc(100dvh - 60px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 1px 1px rgba(252, 241, 208, 0.15);
  margin: auto;
  position: relative;
  color: #FFFFFF;
}

.modal-sm { max-width: 500px !important; }
.modal-md { max-width: 660px !important; }
.modal-lg { max-width: 820px !important; }
.modal-xl { max-width: 960px !important; }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.btn-close, .btn-dismiss, .modal-header .btn-icon {
  background: rgba(1, 7, 54, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-close:hover, .btn-dismiss:hover, .modal-header .btn-icon:hover {
  background: rgba(244, 63, 94, 0.25);
  color: #FB7185;
  border-color: rgba(244, 63, 94, 0.45);
}

@media (max-width: 768px) {
  .modal-backdrop,
  .modal-overlay {
    align-items: flex-end !important;
    padding: 0 !important;
  }

  .modal-content {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 90vh !important;
    max-height: 90dvh !important;
    border-radius: 22px 22px 0 0 !important;
    padding: 16px 16px calc(env(safe-area-inset-bottom, 16px) + 12px) 16px !important;
    margin: 0 !important;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.6) !important;
    animation: slideUpSheet 0.24s cubic-bezier(0.16, 1, 0.3, 1) !important;
  }

  .modal-content::before {
    content: '';
    width: 40px;
    height: 4px;
    background: rgba(252, 241, 208, 0.3);
    border-radius: var(--radius-full);
    margin: 0 auto 14px auto;
    display: block;
  }
}

@keyframes slideUpSheet {
  from { transform: translateY(100%); opacity: 0.6; }
  to { transform: translateY(0); opacity: 1; }
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 640px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; gap: 12px; }
}

.modal-body,
.modal-body-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  min-height: 0;
  padding-right: 4px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
  background: inherit;
}

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

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: #FFFFFF;
  font-size: 14px;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 12px var(--accent-primary-glow);
}

/* HTMX Transition Animations */
.htmx-swapping { opacity: 0; transition: opacity 0.3s ease-out; }
.htmx-settling { opacity: 1; transition: opacity 0.3s ease-in; }

.htmx-indicator {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline-flex;
}

/* Toast Notification & Undo Bar */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast-msg {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #0D1C42;
  border: 1px solid rgba(252, 241, 208, 0.25);
  color: #FCF1D0;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
  font-size: 13.5px;
}
.toast-undo-btn {
  background: rgba(252, 241, 208, 0.15);
  border: none;
  color: #FCF1D0;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: underline;
}

/* Modal form fields fill their column; login, signup, contribute and import modals use .search-input (B-07) */
#modal-container form .search-input { width: 100%; }