/* === VARIABLES & THEMES === */
:root {
  /* Fonts */
  --font-sans: 'Inter', sans-serif;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-20: 5rem;
  --space-32: 8rem;

  /* Radii */
  --rounded-sm: 0.125rem;
  --rounded-md: 0.375rem;
  --rounded-lg: 0.5rem;
  --rounded-xl: 0.75rem;
  --rounded-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

  /* Light Mode Colors */
  --color-text-primary: #0F172A;
  --color-text-secondary: #334155;
  --color-text-muted: #64748b;
  --color-text-inverted: #F8FAFC;
  --color-bg-body: #F8FAFC; /* brand-light-bg */
  --color-bg-card: #FFFFFF; /* brand-light-card */
  --color-bg-input: #F1F5F9; /* gray-100 */
  --color-border: #E2E8F0; /* gray-200/300 */

  /* Brand Colors */
  --brand-accent: #38BDF8;
  --brand-dark: #0F172A;
  --brand-secondary: #1E293B;
  --brand-tertiary: #334155;

  /* Landing Page Palette */
  --landing-deep-blue: #0B2340;
  --landing-gold: #D9A441;
  --landing-off-white: #F7F8FA;

  /* Feedback Colors */
  --color-success: #16A34A; /* green-600 */
  --color-success-bg: #D1FAE5; /* green-100 */
  --color-success-text: #065F46; /* green-800 */
  --color-warning: #F59E0B; /* yellow-500 */
  --color-warning-bg: #FEF3C7; /* yellow-100 */
  --color-warning-text: #92400E; /* yellow-800 */
  --color-danger: #DC2626; /* red-600 */
  --color-danger-bg: #FEE2E2; /* red-100 */
  --color-danger-text: #991B1B; /* red-700 */
  --color-info: #3B82F6; /* blue-500 */
  --color-info-hover: #2563EB; /* blue-600 */
}

body.dark {
  /* Dark Mode Colors */
  --color-text-primary: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-text-inverted: #0F172A;
  --color-bg-body: var(--brand-dark);
  --color-bg-card: var(--brand-secondary);
  --color-bg-input: var(--brand-tertiary);
  --color-border: #475569;

  /* Feedback Dark Colors */
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-success-text: #6EE7B7;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-warning-text: #FCD34D;
  --color-danger-bg: rgba(239, 68, 68, 0.2);
  --color-danger-text: #F87171;
}

/* === BASE & RESET === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html, body, #root {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--color-bg-body);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
body.dark ::-webkit-scrollbar-thumb {
    background: #475569;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}
body.dark ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* === UTILITIES === */
.h-full { height: 100%; }
.w-full { width: 100%; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* === HEADINGS & TEXT === */
h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  color: var(--color-text-primary);
}
h1 { font-size: 1.875rem; /* 30px */ }
h2 { font-size: 1.5rem; /* 24px */ }
h3 { font-size: 1.25rem; /* 20px */ }
p { margin: 0; }
a { color: var(--color-info); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--rounded-lg);
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, opacity 0.2s;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-primary {
  background-color: var(--brand-accent);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}
.btn-secondary {
  background-color: var(--color-bg-input);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-border);
}
.btn-danger {
  background-color: var(--color-danger);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  opacity: 0.9;
}
.btn-info {
  background-color: var(--color-info);
  color: white;
}
.btn-info:hover:not(:disabled) {
  background-color: var(--color-info-hover);
}
.btn-success {
  background-color: var(--color-success);
  color: white;
}
.btn-success:hover:not(:disabled) {
  opacity: 0.9;
}

/* === FORMS === */
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--rounded-md);
  background-color: var(--color-bg-input);
  color: var(--color-text-primary);
  border: 1px solid transparent;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 1px var(--brand-accent);
}
.form-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
  font-weight: 500;
}
.form-checkbox {
  height: 1rem;
  width: 1rem;
  border-radius: var(--rounded-sm);
  border-color: var(--color-border);
  color: var(--brand-accent);
}
.form-checkbox:focus {
  ring: var(--brand-accent);
}


/* === CARDS & CONTAINERS === */
.card {
  background-color: var(--color-bg-card);
  padding: var(--space-6);
  border-radius: var(--rounded-lg);
  box-shadow: var(--shadow-md);
}

/* === TABLES === */
.table-container {
  background-color: var(--color-bg-card);
  box-shadow: var(--shadow-md);
  border-radius: var(--rounded-lg);
  overflow: hidden;
}
.table-wrapper {
  overflow-x: auto;
}
.table {
  min-width: 100%;
  border-collapse: collapse;
}
.table thead {
  background-color: #F9FAFB;
}
body.dark .table thead {
  background-color: var(--brand-tertiary);
}
.table th {
  padding: var(--space-3) var(--space-6);
  text-align: left;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.table tbody {
  border-top: 1px solid var(--color-border);
}
.table td {
  padding: var(--space-4) var(--space-6);
  font-size: 0.875rem;
  white-space: nowrap;
}
.table tr:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}


/* === COMPONENT STYLES === */

/* App.tsx */
.loading-screen {
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--brand-dark);
  color: white;
}

/* Header.tsx */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header-menu-btn {
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
}
.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}
.header-user {
  display: flex;
  align-items: center;
}
.header-user-name {
  color: var(--color-text-primary);
  margin-right: var(--space-3);
  font-weight: 500;
}
.header-user-avatar {
  height: 2rem;
  width: 2rem;
  border-radius: var(--rounded-full);
  object-fit: cover;
}
.header-user-icon {
  height: 2rem;
  width: 2rem;
  color: var(--color-text-muted);
}
@media (min-width: 768px) {
  .header-menu-btn { display: none; }
}
@media (max-width: 640px) {
  .header-user-name { display: none; }
}


/* SideNav.tsx */
.sidenav {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  width: 16rem; /* 256px */
  background-color: var(--brand-secondary);
  color: white;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.3s ease-in-out;
}
.sidenav.open {
  transform: translateX(0);
}
.sidenav-header {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 5rem; /* 80px */
  border-bottom: 1px solid var(--brand-tertiary);
}
.sidenav-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}
.sidenav-links {
  flex: 1;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  overflow-y: auto;
}
.sidenav-link {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--rounded-lg);
  transition: color 0.2s, background-color 0.2s;
  color: #94a3b8; /* gray-400 */
}
.sidenav-link:hover {
  background-color: var(--brand-tertiary);
  color: white;
  text-decoration: none;
}
.sidenav-link.active {
  background-color: var(--brand-accent);
  color: white;
}
.sidenav-link svg {
  margin-right: 0.75rem;
  width: 1.5rem;
  height: 1.5rem;
}
.sidenav-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--brand-tertiary);
}
.sidenav-user {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-4);
}
.sidenav-user-avatar {
  width: 2.5rem;
  height: 2.5rem;
  margin-right: 0.75rem;
  border-radius: var(--rounded-full);
  object-fit: cover;
}
.sidenav-user-icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-right: 0.75rem;
  color: #94a3b8; /* gray-400 */
}
.sidenav-user-name {
  font-weight: 600;
  color: white;
}
.sidenav-user-email {
  font-size: 0.75rem;
  color: #94a3b8; /* gray-400 */
}
.sidenav-logout-btn {
  width: 100%;
}
.sidenav-logout-btn svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}
.nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.5);
  z-index: 40;
}

@media (min-width: 768px) {
  .sidenav {
    position: relative;
    transform: translateX(0);
  }
  .nav-overlay {
    display: none;
  }
}

/* DashboardLayout.tsx & others */
.dashboard-layout {
  display: flex;
  height: 100vh;
  background-color: var(--color-bg-body);
}
.dashboard-content-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.dashboard-main {
  flex: 1;
  overflow-x: hidden;
  overflow-y: auto;
}
.dashboard-main-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* Dashboard.tsx */
.dashboard-welcome {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text-primary);
}
.dashboard-subheadline {
  margin-top: var(--space-2);
  font-size: 1.125rem;
  color: var(--color-text-muted);
}
.dashboard-stats-grid {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .dashboard-stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .dashboard-stats-grid { grid-template-columns: repeat(3, 1fr); }
}
.stat-card {
  background-color: var(--color-bg-card);
  padding: var(--space-6);
  border-radius: var(--rounded-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
}
.stat-card-icon-wrapper {
  padding: 0.75rem;
  background-color: var(--brand-accent);
  border-radius: var(--rounded-full);
  color: white;
  margin-right: var(--space-4);
}
.stat-card-icon-wrapper svg {
  width: 1.5rem;
  height: 1.5rem;
}
.stat-card-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.stat-card-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}
.dashboard-next-steps {
  margin-top: var(--space-8);
}
.dashboard-next-steps-list {
  list-style: disc;
  list-style-position: inside;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--color-text-secondary);
}
.dashboard-next-steps-list .next-step-link {
  font-weight: 600;
  color: var(--brand-accent);
}

/* DigitalVault.tsx */
.page-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.page-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text-primary);
}
.page-subheadline {
  margin-top: var(--space-2);
  font-size: 1.125rem;
  color: var(--color-text-muted);
}
.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  align-self: flex-start;
}
@media (min-width: 640px) {
  .page-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .page-header-actions {
    align-self: auto;
  }
}
.vault-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .vault-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .vault-grid { grid-template-columns: repeat(3, 1fr); } }
.vault-item {
  display: flex;
  flex-direction: column;
}
.vault-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.vault-item-title-wrapper {
  display: flex;
  align-items: center;
}
.vault-item-icon {
  width: 2rem;
  height: 2rem;
  color: var(--brand-accent);
}
.vault-item-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-left: 0.75rem;
  color: var(--color-text-primary);
}
.vault-item-status {
  font-size: 0.75rem;
  font-weight: 500;
  background-color: var(--color-success-bg);
  color: var(--color-success-text);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--rounded-full);
}
.vault-item-description {
  margin-top: var(--space-4);
  color: var(--color-text-muted);
  flex-grow: 1;
}
.vault-item-footer {
  margin-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}
.vault-item-meta {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.vault-item-meta svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}

/* Modal styles */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: var(--space-4);
}
.modal-content {
  background-color: var(--color-bg-card);
  padding: var(--space-8);
  border-radius: var(--rounded-lg);
  max-width: 32rem; /* 512px */
  width: 100%;
  box-shadow: var(--shadow-2xl);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}
.modal-form-group {
  margin-bottom: var(--space-4);
}
.modal-inspiration-box {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-lg);
  margin-bottom: var(--space-4);
}
.modal-inspiration-box p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.modal-inspiration-box .flex-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
@media (min-width: 640px) {
  .modal-inspiration-box .flex-group {
    flex-direction: row;
  }
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.modal-guardian-list {
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-lg);
  max-height: 8rem;
  overflow-y: auto;
  background-color: var(--color-bg-input);
}
.modal-guardian-item {
  display: flex;
  align-items: center;
  padding: var(--space-1);
}
.modal-guardian-item label {
  margin-left: 0.5rem;
  font-size: 0.875rem;
}

/* Channels.tsx */
.tabs {
  display: flex;
  gap: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
}
.tab-button {
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--rounded-md);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-muted);
}
.tab-button:hover {
  background-color: var(--color-bg-input);
}
.tab-button.active {
  background-color: var(--brand-accent);
  color: white;
}
.table-action-buttons {
  display: flex;
  gap: var(--space-2);
}
.table-action-buttons button, .table-action-buttons a {
  background: none;
  border: none;
  padding: var(--space-1);
  cursor: pointer;
  color: var(--color-text-muted);
}
.table-action-buttons .edit-btn:hover { color: var(--color-info); }
.table-action-buttons .delete-btn:hover { color: var(--color-danger); }
.table-action-buttons .email-btn:hover { color: var(--color-info); }
.table-action-buttons .sms-btn:hover { color: var(--color-success); }


/* VoiceClone.tsx */
.voice-clone-recorder {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.recorder-btn {
  padding: var(--space-4);
  border-radius: var(--rounded-full);
  transition: background-color 0.2s;
  border: none;
  cursor: pointer;
}
.recorder-btn.recording {
  background-color: #ef4444; /* red-500 */
}
.recorder-btn.recording:hover {
  background-color: #dc2626; /* red-600 */
}
.recorder-btn.stopped {
  background-color: #22c55e; /* green-500 */
}
.recorder-btn.stopped:hover {
  background-color: #16a34a; /* green-600 */
}
.recorder-btn svg {
  width: 2rem;
  height: 2rem;
  color: white;
}
.recorder-status-text {
  font-weight: 500;
  color: var(--color-text-secondary);
}
.sample-list {
  margin-top: 1.5rem;
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.sample-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2);
  background-color: var(--color-bg-input);
  border-radius: var(--rounded-md);
}
.sample-list-item p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}
.sample-list-item audio {
  height: 2rem;
}
.divider {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.error-box {
  padding: var(--space-4);
  background-color: var(--color-danger-bg);
  border: 1px solid var(--color-danger);
  color: var(--color-danger-text);
  border-radius: var(--rounded-lg);
  text-align: center;
}
.error-box-inline {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-danger-bg);
  border: 1px solid var(--color-danger);
  color: var(--color-danger-text);
  border-radius: var(--rounded-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.error-box p, .error-box-inline p {
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
}
.error-box .btn {
  margin: 0 auto;
}

/* TrainingCenter.tsx */
.training-grid {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .training-grid {
    grid-template-columns: 2fr 1fr;
  }
}
.training-main-col {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.training-side-col {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.custom-question-box {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-md);
  background-color: #F9FAFB;
}
body.dark .custom-question-box {
  background-color: rgba(51, 65, 85, 0.5); /* tertiary/50 */
}
.upload-box {
  padding: var(--space-4);
  border: 2px dashed var(--color-border);
  border-radius: var(--rounded-lg);
  text-align: center;
}
.upload-box-icon {
  margin: 0 auto;
  height: 3rem;
  width: 3rem;
  color: var(--color-text-muted);
}
.upload-label {
  cursor: pointer;
  color: var(--brand-accent);
  font-weight: 500;
}
.upload-label:hover {
  opacity: 0.8;
}
.upload-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.doc-list {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
}
.doc-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  padding: var(--space-2);
  background-color: var(--color-bg-input);
  border-radius: var(--rounded-md);
}
.doc-list-item span {
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  color: var(--color-text-secondary);
}
.doc-list-item button {
  background: none; border: none; cursor: pointer;
}
.doc-list-item .trash-icon {
  width: 1rem; height: 1rem; color: var(--color-danger);
}
.doc-list-item .trash-icon:hover {
  opacity: 0.7;
}

/* ChatWindow.tsx */
.chat-window {
  background-color: var(--color-bg-card);
  border-radius: var(--rounded-lg);
  box-shadow: var(--shadow-md);
  max-width: 48rem; /* 768px */
  margin: 0 auto;
}
.chat-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.chat-messages {
  height: 24rem; /* 384px */
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.chat-message {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.chat-message.user {
  justify-content: flex-end;
}
.chat-message-avatar {
  width: 2rem;
  height: 2rem;
  color: var(--brand-accent);
  flex-shrink: 0;
}
.chat-bubble {
  padding: var(--space-3);
  border-radius: var(--rounded-lg);
  max-width: 80%;
  white-space: pre-wrap;
}
.chat-bubble.user {
  background-color: var(--color-info);
  color: white;
}
.chat-bubble.clone {
  background-color: var(--color-bg-input);
  color: var(--color-text-primary);
}
.chat-input-area {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}
.chat-input {
  flex-grow: 1;
}
.chat-send-btn {
  margin-left: 0.75rem;
  padding: var(--space-2);
  border-radius: var(--rounded-full);
  background-color: var(--color-info);
  color: white;
  border: none;
  cursor: pointer;
}
.chat-send-btn:hover:not(:disabled) {
  background-color: var(--color-info-hover);
}
.chat-send-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* PublicChatPortal.tsx */
.proche-dashboard {
  height: 100vh;
  width: 100vw;
  display: flex;
  background-color: var(--color-bg-body);
  overflow: hidden;
}
.proche-nav {
  z-index: 50;
  width: 16rem;
  background-color: var(--brand-secondary);
  color: white;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease-in-out;
}
.proche-nav h1 {
  text-align: center;
  padding: 1.5rem 0;
}
.proche-header {
  padding: var(--space-4);
  background-color: var(--color-bg-card);
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}
.proche-header .connected-as {
  color: var(--color-text-primary);
}
.proche-main {
  flex: 1;
  padding: var(--space-4) var(--space-8);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.proche-chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 56rem; /* 896px */
  margin: 0 auto;
  width: 100%;
  height: 100%;
}
.verification-card {
  max-width: 28rem;
  margin: 2.5rem auto 0 auto;
  padding: var(--space-8);
  text-align: center;
}
.verification-card svg {
  width: 4rem;
  height: 4rem;
  margin: 0 auto;
  color: var(--brand-accent);
}
.verification-card h2 {
  margin-top: var(--space-4);
}
.verification-card p {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
}
.verification-card form {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.info-card {
  margin-top: 2rem;
  max-width: 32rem;
}
.info-card .info-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.info-card .info-item {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}
.info-card .info-item:last-child {
  border-bottom: none;
}
.info-card .info-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.info-card .info-value {
  font-size: 1.125rem;
  color: var(--color-text-primary);
}
.privacy-notice {
  margin-top: 2rem;
  max-width: 32rem;
  background-color: var(--color-warning-bg);
  border-left: 4px solid var(--color-warning);
  padding: var(--space-4);
  border-top-right-radius: var(--rounded-lg);
  border-bottom-right-radius: var(--rounded-lg);
  display: flex;
}
.privacy-notice .icon-wrapper {
  flex-shrink: 0;
}
.privacy-notice .icon-wrapper svg {
  height: 1.5rem;
  width: 1.5rem;
  color: var(--color-warning);
}
.privacy-notice .content {
  margin-left: 0.75rem;
}
.privacy-notice .content h3 {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-warning-text);
}
.privacy-notice .content p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-warning-text);
}

/* LoginPage.tsx */
.login-page {
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  overflow: hidden;
  position: relative;
  color: white;
}
.login-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: opacity 1s;
  z-index: 1;
}
.login-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0,0,0,0.5);
  z-index: 10;
}
.login-content {
  position: relative;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
}
.login-title {
  font-size: 3.75rem; /* 60px */
  font-weight: 700;
  color: white;
  margin-bottom: 2rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
  cursor: pointer;
  transition: transform 0.2s;
}
.login-title:hover {
  transform: scale(1.05);
}
.login-box-wrapper {
  width: 100%;
  max-width: 28rem; /* 448px */
  transition: all 0.7s ease-in-out;
}
.login-box-wrapper.hidden {
  max-height: 0;
  opacity: 0;
}
.login-box-wrapper.visible {
  max-height: 1000px; /* some large value */
  opacity: 1;
}
.login-box {
  background-color: var(--color-bg-card);
  color: var(--color-text-primary);
  border-radius: var(--rounded-xl);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
}
.login-tabs {
  display: flex;
}
.login-tab {
  width: 50%;
  padding: var(--space-4);
  text-align: center;
  transition: background-color 0.3s;
  border: none;
  cursor: pointer;
  background-color: rgba(243, 244, 246, 0.5); /* gray-100/50 */
}
body.dark .login-tab {
  background-color: rgba(30, 41, 59, 0.5); /* secondary/50 */
}
.login-tab:hover {
  background-color: rgba(229, 231, 235, 0.5); /* gray-200/50 */
}
body.dark .login-tab:hover {
  background-color: rgba(51, 65, 85, 0.5); /* tertiary/50 */
}
.login-tab.active {
  background-color: var(--color-bg-card);
}
.login-tab svg {
  width: 2rem;
  height: 2rem;
  margin: 0 auto 0.5rem auto;
  color: var(--color-text-muted);
}
.login-tab.active svg {
  color: var(--brand-accent);
}
.login-tab-title {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text-primary);
}
.login-tab-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.login-form-area {
  padding: 2rem;
}
.login-form-area form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.form-divider {
  position: relative;
  margin: 1rem 0;
}
.form-divider-line {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
}
.form-divider-line::before {
  content: '';
  width: 100%;
  border-top: 1px solid var(--color-border);
}
.form-divider-text {
  position: relative;
  display: flex;
  justify-content: center;
  font-size: 0.875rem;
}
.form-divider-text span {
  padding: 0 0.5rem;
  background-color: var(--color-bg-card);
  color: var(--color-text-muted);
}
.login-google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color 0.2s;
}
.login-google-btn:hover {
  background-color: #F9FAFB;
}
body.dark .login-google-btn {
  background-color: #1f2937; /* gray-800 */
}
body.dark .login-google-btn:hover {
  background-color: #374151; /* gray-700 */
}
.login-google-btn svg {
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.75rem;
}
.login-admin-footer {
  text-align: center;
  margin-top: 1rem;
}
.login-admin-footer button {
  font-size: 0.75rem;
  color: #D1D5DB; /* gray-300 */
  background: none;
  border: none;
  cursor: pointer;
}
.login-admin-footer button:hover {
  color: white;
  text-decoration: underline;
}

/* LanguageSwitcher.tsx */
.language-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  border-radius: var(--rounded-lg);
  padding: var(--space-1);
  background-color: var(--color-bg-input);
}
body.dark .language-switcher {
  background-color: var(--brand-tertiary);
}
.language-switcher button {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--rounded-md);
  transition: color 0.2s, background-color 0.2s;
  font-size: 0.75rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  background-color: transparent;
  color: var(--color-text-muted);
}
.language-switcher button:hover {
  background-color: rgba(0,0,0,0.05);
}
body.dark .language-switcher button:hover {
  background-color: rgba(255,255,255,0.1);
}
.language-switcher button.active {
  background-color: var(--color-bg-card);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}
.login-page .language-switcher {
  background-color: rgba(30, 41, 59, 0.5); /* secondary/50 */
}
.login-page .language-switcher button {
  background-color: rgba(51, 65, 85, 0.5); /* tertiary/50 */
  color: #D1D5DB; /* gray-300 */
}
.login-page .language-switcher button:hover {
  background-color: var(--brand-tertiary);
}
.login-page .language-switcher button.active {
  background-color: var(--brand-accent);
  color: white;
}


/* === LANDING PAGE === */
.landing-page {
    background-color: var(--landing-off-white);
    color: var(--landing-deep-blue);
}
body.dark .landing-page {
    background-color: var(--brand-dark);
    color: var(--color-text-primary);
}
.landing-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* --- Section Base Styles --- */
.landing-page section {
    padding: var(--space-20) 0;
}
.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-4);
}
.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-12) auto;
}

/* --- Header --- */
.landing-header {
    background-color: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}
body.dark .landing-header {
    background-color: rgba(15, 23, 42, 0.8);
}
.landing-header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.landing-header__logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-text-primary);
}
.landing-header__nav {
    display: none;
}
.landing-header__nav-link {
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color 0.2s;
}
.landing-header__nav-link:hover {
    color: var(--brand-accent);
    text-decoration: none;
}
.landing-header__nav-link.active {
    color: var(--brand-accent);
    font-weight: 700;
}
.landing-header__actions {
    display: none;
    align-items: center;
    gap: var(--space-4);
}
.landing-header__login-btn {
    font-weight: 500;
    color: var(--color-text-secondary);
}
.landing-header__mobile-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
}
.landing-header__mobile-toggle svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* Mobile Nav */
.landing-header__nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg-card);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    gap: var(--space-4);
}
.landing-header__mobile-actions {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

@media (min-width: 1024px) {
    .landing-header__nav {
        display: flex;
        gap: var(--space-6);
        position: static;
        flex-direction: row;
        background: none;
        padding: 0;
        box-shadow: none;
    }
    .landing-header__mobile-actions {
        display: none;
    }
    .landing-header__actions {
        display: flex;
    }
    .landing-header__mobile-toggle {
        display: none;
    }
}


/* --- Hero Section --- */
.hero-section {
    text-align: center;
    padding: var(--space-32) 0;
}
.hero-section__title {
    font-size: 3rem;
    font-weight: 800;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.2;
}
@media (min-width: 768px) {
    .hero-section__title {
        font-size: 3.75rem;
    }
}
.hero-section__lead {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: var(--space-6) auto 0 auto;
}
.hero-section__actions {
    margin-top: var(--space-8);
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}
.btn--large {
    padding: var(--space-3) var(--space-8);
    font-size: 1rem;
}

/* --- Value Props --- */
.value-props-section {
    background-color: white;
}
body.dark .value-props-section {
    background-color: var(--brand-secondary);
}
.value-props-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-8);
}
@media (min-width: 768px) {
    .value-props-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
.value-prop-card {
    text-align: center;
}
.value-prop-card__icon {
    display: inline-flex;
    padding: var(--space-4);
    background-color: var(--brand-accent);
    color: white;
    border-radius: var(--rounded-lg);
    margin-bottom: var(--space-6);
}
.value-prop-card__icon svg {
    width: 2rem;
    height: 2rem;
}
.value-prop-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}
.value-prop-card__body {
    color: var(--color-text-muted);
}

/* --- How It Works --- */
.how-it-works-section {
    text-align: center;
}
.how-it-works__steps-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-12);
    text-align: left;
    position: relative;
}
.how-it-works__step {
    padding-left: var(--space-8);
    border-left: 2px solid var(--brand-accent);
}
.how-it-works__step-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--brand-accent);
    opacity: 0.3;
    margin-bottom: var(--space-2);
}
.how-it-works__step-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}
.how-it-works__step-body {
    color: var(--color-text-muted);
}
@media (min-width: 768px) {
    .how-it-works__steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0;
    }
    .how-it-works__step {
        padding-left: 0;
        padding-top: var(--space-8);
        border-left: none;
        border-top: 2px solid var(--brand-accent);
        margin: 0 var(--space-4);
    }
}

/* --- Demo Section --- */
.demo-section {
    background-color: var(--landing-deep-blue);
    color: white;
}
.demo-section .section-title, .demo-section .section-subtitle {
    color: white;
}
.demo__audio-player {
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(255,255,255,0.1);
    border-radius: var(--rounded-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}
.demo__play-btn {
    flex-shrink: 0;
    width: 3.5rem;
    height: 3.5rem;
    background-color: white;
    color: var(--landing-deep-blue);
    border-radius: var(--rounded-full);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}
.demo__play-btn:hover {
    transform: scale(1.1);
}
.demo__play-btn svg {
    width: 1.5rem;
    height: 1.5rem;
    margin-left: 0.2rem;
}
.demo__transcription p {
    font-style: italic;
    font-size: 1.125rem;
    color: #e2e8f0;
}

/* --- Security Section --- */
.security__features-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
}
.security__feature-tag {
    background-color: var(--color-bg-input);
    color: var(--color-text-secondary);
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--rounded-full);
    font-size: 0.875rem;
}

/* --- Pricing Section --- */
.pricing-section {
    background-color: white;
}
body.dark .pricing-section {
    background-color: var(--brand-secondary);
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}
@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
.pricing-tier {
    border: 1px solid var(--color-border);
    border-radius: var(--rounded-xl);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
}
.pricing-tier.is-featured {
    border: 2px solid var(--brand-accent);
    transform: scale(1.05);
}
.pricing-tier__featured-badge {
    background-color: var(--brand-accent);
    color: white;
    font-weight: 700;
    font-size: 0.75rem;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--rounded-full);
    align-self: flex-start;
}
.pricing-tier__name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: var(--space-4);
}
.pricing-tier__price {
    font-size: 2.25rem;
    font-weight: 800;
    margin-top: var(--space-2);
}
.pricing-tier__price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
}
.pricing-tier__features {
    list-style: none;
    padding: 0;
    margin-top: var(--space-8);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.pricing-tier__features li {
    display: flex;
    align-items: flex-start;
}
.pricing-tier__features li svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-success);
    margin-right: var(--space-2);
    margin-top: 0.2rem;
    flex-shrink: 0;
}
.pricing-tier .btn {
    margin-top: var(--space-8);
}

/* --- Testimonials Section --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-8);
}
@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
.testimonial-card {
    background-color: white;
    padding: var(--space-6);
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-md);
    margin: 0;
}
body.dark .testimonial-card {
    background-color: var(--brand-secondary);
}
.testimonial-card__quote {
    font-style: italic;
    color: var(--color-text-secondary);
}
.testimonial-card__author {
    margin-top: var(--space-4);
    font-style: normal;
}
.testimonial-card__name {
    display: block;
    font-weight: 700;
}
.testimonial-card__relation {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* --- FAQ Section --- */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}
.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.faq-item {
    border-bottom: 1px solid var(--color-border);
}
.faq-item__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    color: var(--color-text-primary);
}
.faq-item__icon {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s;
    color: var(--color-text-muted);
}
.faq-item.is-open .faq-item__icon {
    transform: rotate(45deg);
}
.faq-item__answer-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease-out;
}
.faq-item.is-open .faq-item__answer-wrapper {
    grid-template-rows: 1fr;
}
.faq-item__answer {
    overflow: hidden;
}
.faq-item__answer p {
    padding-bottom: var(--space-4);
    color: var(--color-text-muted);
}

/* --- Footer --- */
.landing-footer {
    background-color: var(--landing-deep-blue);
    color: #e2e8f0;
    padding: var(--space-12) 0;
}
.landing-footer__main {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}
@media (min-width: 768px) {
    .landing-footer__main {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1024px) {
    .landing-footer__main {
        grid-template-columns: 1fr 1fr 2fr;
    }
}
.landing-footer__title {
    font-weight: 700;
    font-size: 1rem;
    color: white;
    margin-bottom: var(--space-4);
}
.landing-footer__links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.landing-footer__links a {
    color: #cbd5e1;
    transition: color 0.2s;
}
.landing-footer__links a:hover {
    color: white;
}
.landing-footer__form {
    display: flex;
    gap: var(--space-2);
}
.landing-footer__form .form-input {
    background-color: rgba(255,255,255,0.1);
    color: white;
}
.landing-footer__bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255,255,255,0.2);
    text-align: center;
    font-size: 0.875rem;
    color: #94a3b8;
}