:root {
  --primary-color: #2c5282;
  --primary-hover: #1a365d;
  --secondary-color: #4a5568;
  --accent-color: #319795;
  --bg-color: #f7fafc;
  --card-bg: #ffffff;
  --text-main: #1a202c;
  --text-muted: #718096;
  --border-color: #e2e8f0;
  --success-color: #38a169;
  --warning-color: #dd6b20;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--primary-color);
}

.brand-icon {
  font-size: 1.5rem;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  background-color: #def7ec;
  color: #03543f;
}

.app-status .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success-color);
}

.user-status {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.active-context-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0.5rem 1.5rem;
  background-color: #edf2f7;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.context-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.context-tag strong {
  color: var(--primary-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
}

nav[role="navigation"] {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.25rem 0;
}

.nav-btn {
  background: none;
  border: none;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--secondary-color);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-btn:hover {
  color: var(--primary-color);
}

.nav-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-color);
  cursor: pointer;
  padding: 0.5rem;
}

main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.app-section {
  display: none;
}

.app-section.active {
  display: block;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.card h2 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.card p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}

input[type="text"],
input[type="email"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--text-main);
  background-color: #fff;
  transition: border-color 0.2s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #edf2f7;
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
}

.btn-outline {
  background: transparent;
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
}

.moments-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.moment-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.moment-card-body {
  padding: 1.25rem;
  flex: 1;
}

.moment-card h3 {
  font-size: 1.2rem;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.moment-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.moment-meta {
  font-size: 0.85rem;
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.moment-photo {
  width: 100%;
  background-color: #000;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
}

.moment-photo img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  display: block;
}

.crypto-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: #edf2f7;
  color: var(--primary-color);
  font-weight: 600;
  margin-top: 0.5rem;
}

footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: auto;
}

/* Responsive Rules for Mobile */
@media (max-width: 768px) {
  .header-top {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .header-meta {
    width: 100%;
    justify-content: space-between;
  }

  .nav-container {
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: block;
  }

  nav[role="navigation"] {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    gap: 0.25rem;
  }

  .nav-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  main {
    padding: 1rem 0.75rem;
  }

  .moments-container {
    grid-template-columns: 1fr;
  }
}

/* Operational Readiness Status Badge Styles */
.app-status.status-degraded {
  background-color: #feecdc;
  color: #9c4221;
}

.app-status .status-dot.dot-warn {
  background-color: var(--warning-color);
}

.app-status .status-dot.dot-err {
  background-color: #e53e3e;
}

/* Extracted Utility Classes */
.header-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-status-container {
  display: none;
}

.auth-logged-in-panel {
  display: none;
  margin-top: 1rem;
}

.crypto-badge-mb {
  margin-bottom: 1rem;
}

.form-hint {
  display: block;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.empty-text {
  color: var(--text-muted);
}

/* Album & Sharing Styles (Incrément 2) */
.album-photos-selection-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  background: #fdfdfd;
}

.album-photo-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.album-photo-item input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  cursor: pointer;
}

.albums-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.album-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.album-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.album-card-header h3 {
  font-size: 1.15rem;
  margin: 0;
  color: var(--primary-color);
}

.album-status-badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background: #edf2f7;
  color: #4a5568;
}

.album-status-badge.status-frozen {
  background: #c6f6d5;
  color: #22543d;
}

.album-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.btn-danger {
  background: #e53e3e;
  color: #fff;
  border-color: #c53030;
}

.btn-danger:hover {
  background: #c53030;
}

/* Modals */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  pointer-events: none;
}

.modal-backdrop.active {
  display: flex;
}

.consultant-invite-panel {
  display: none;
}

.consultant-invite-panel.active {
  display: block;
}

.generated-invite-container {
  display: none;
  margin-top: 1rem;
}

.generated-invite-container.active {
  display: block;
}

.modal-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
}

.modal-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.token-display {
  background: #edf2f7;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  font-family: monospace;
  word-break: break-all;
  user-select: all;
  border: 1px dashed var(--border-color);
}

.token-link {
  margin-top: 0.5rem;
  color: var(--primary-color);
}

.alert-danger, .share-error-banner {
  background: #fed7d7;
  color: #9b2c2c;
  border: 1px solid #feb2b2;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-weight: 600;
}

.album-grantees-list {
  margin-top: 0.5rem;
}

.grantee-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.25rem;
}

.grantee-status-pending {
  font-size: 0.85em;
  color: #666;
}

.album-meta-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.modal-grantees-section {
  margin-top: 1rem;
  border-top: 1px solid #ccc;
  padding-top: 1rem;
}

.modal-grantee-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.hidden {
  display: none !important;
}