#navig-app {
  --color-bg: #f4f1eb;
  --color-surface: #f9f8f4;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ece9e2;
  --color-divider: #dcd9d2;
  --color-border: #d0cdc6;
  --color-text: #1e1c17;
  --color-text-muted: #6b6960;
  --color-text-faint: #b0aea8;
  --color-text-inverse: #f9f8f4;
  --color-primary: #2d6e5e;
  --color-primary-hover: #1f5247;
  --color-primary-light: #e0eeeb;
  --color-gold: #c8943c;
  --color-gold-light: #faf0de;
  --color-warn: #fff7ed;
  --color-warn-border: #fed7aa;
  --shadow-sm: 0 1px 3px oklch(0.15 0.01 80 / 0.07);
  --shadow-md: 0 4px 16px oklch(0.15 0.01 80 / 0.10);
  --shadow-lg: 0 12px 40px oklch(0.15 0.01 80 / 0.16);
  --shadow-xl: 0 20px 60px oklch(0.15 0.01 80 / 0.22);
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 1rem);
  --text-base: clamp(0.9375rem, 0.88rem + 0.3vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --ease: cubic-bezier(0.16, 1, 0.3, 1);

  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.65;
}

#navig-app, #navig-app * { box-sizing: border-box; margin: 0; padding: 0; }
#navig-app button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
#navig-app a { color: var(--color-primary); text-decoration: none; }
#navig-app a:hover { text-decoration: underline; }

/* Плавающая кнопка */
#navig-app .chat-fab {
  position: fixed; bottom: var(--space-6); right: var(--space-6);
  width: 60px; height: 60px;
  background: var(--color-primary); color: white;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); z-index: 998;
  transition: transform 200ms var(--ease), background 180ms var(--ease), box-shadow 180ms var(--ease);
  animation: fab-intro 0.6s 1.2s var(--ease) both;
}
#navig-app .chat-fab:hover { transform: scale(1.08); background: var(--color-primary-hover); box-shadow: var(--shadow-xl); }
#navig-app .chat-fab:active { transform: scale(0.96); }
#navig-app .fab-badge {
  position: absolute; top: -4px; right: -4px;
  width: 18px; height: 18px;
  background: var(--color-gold); border-radius: var(--radius-full);
  border: 2px solid var(--color-bg);
  animation: pulse-badge 2.5s ease-in-out infinite;
}
@keyframes pulse-badge { 0%,100%{transform:scale(1);opacity:1;} 50%{transform:scale(1.2);opacity:0.8;} }
@keyframes fab-intro { from{transform:scale(0) translateY(20px);opacity:0;} to{transform:scale(1) translateY(0);opacity:1;} }

/* Чат-виджет */
#navig-app .chat-widget {
  position: fixed; bottom: 80px; right: var(--space-6);
  width: min(440px, calc(100vw - var(--space-6) * 2));
  max-height: min(700px, calc(100dvh - 100px));
  background: var(--color-surface-2); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl); border: 1px solid var(--color-border);
  display: flex; flex-direction: column; overflow: hidden; z-index: 999;
  transform-origin: bottom right;
  transition: transform 280ms var(--ease), opacity 280ms var(--ease);
}
#navig-app .chat-widget.hidden { transform: scale(0.88) translateY(16px); opacity: 0; pointer-events: none; }
#navig-app .chat-widget.visible { transform: scale(1) translateY(0); opacity: 1; }

/* Заголовок */
#navig-app .chat-header {
  background: var(--color-primary);
  padding: var(--space-4) var(--space-5);
  display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
#navig-app .chat-header-left { display: flex; align-items: center; gap: var(--space-3); }
#navig-app .chat-avatar {
  width: 38px; height: 38px; background: rgba(255,255,255,0.2);
  border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
#navig-app .chat-header-name { font-weight: 600; font-size: var(--text-sm); color: white; line-height: 1.2; }
#navig-app .chat-header-status { font-size: var(--text-xs); color: rgba(255,255,255,0.75); display: flex; align-items: center; gap: var(--space-1); }
#navig-app .status-dot { width: 6px; height: 6px; background: #4ade80; border-radius: var(--radius-full); display: inline-block; animation: blink-dot 3s ease-in-out infinite; }
@keyframes blink-dot { 0%,100%{opacity:1;} 50%{opacity:0.4;} }
#navig-app .chat-header-actions { display: flex; gap: var(--space-1); }
#navig-app .chat-header-btn {
  width: 30px; height: 30px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.8);
  transition: background 150ms var(--ease), color 150ms var(--ease);
}
#navig-app .chat-header-btn:hover { background: rgba(255,255,255,0.15); color: white; }

/* Дисклеймер */
#navig-app .chat-disclosure {
  background: var(--color-gold-light);
  border-bottom: 1px solid rgba(200,148,60,0.2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs); color: var(--color-text-muted);
  display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0;
}

/* Область сообщений */
#navig-app .chat-messages {
  flex: 1; overflow-y: auto; padding: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-4);
  scroll-behavior: smooth;
}
#navig-app .chat-messages::-webkit-scrollbar { width: 4px; }
#navig-app .chat-messages::-webkit-scrollbar-track { background: transparent; }
#navig-app .chat-messages::-webkit-scrollbar-thumb { background: var(--color-divider); border-radius: 2px; }

/* Сообщения */
#navig-app .msg { display: flex; gap: var(--space-2); max-width: 92%; animation: msg-in 0.25s var(--ease) both; }
@keyframes msg-in { from{opacity:0;transform:translateY(8px);} to{opacity:1;transform:translateY(0);} }
#navig-app .msg.bot { align-self: flex-start; }
#navig-app .msg.user { align-self: flex-end; flex-direction: row-reverse; }
#navig-app .msg-bubble { padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg); font-size: var(--text-sm); line-height: 1.6; }
#navig-app .msg.bot .msg-bubble { background: var(--color-surface); border: 1px solid var(--color-border); border-bottom-left-radius: var(--radius-sm); color: var(--color-text); }
#navig-app .msg.user .msg-bubble { background: var(--color-primary); color: white; border-bottom-right-radius: var(--radius-sm); }

/* Индикатор набора */
#navig-app .typing-indicator { display: flex; gap: 5px; align-items: center; padding: var(--space-3) var(--space-4); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); border-bottom-left-radius: var(--radius-sm); width: fit-content; animation: msg-in 0.25s var(--ease) both; }
#navig-app .typing-dot { width: 7px; height: 7px; background: var(--color-text-muted); border-radius: var(--radius-full); animation: typing-bounce 1.2s ease-in-out infinite; }
#navig-app .typing-dot:nth-child(2) { animation-delay: 0.18s; }
#navig-app .typing-dot:nth-child(3) { animation-delay: 0.36s; }
@keyframes typing-bounce { 0%,80%,100%{transform:translateY(0);opacity:0.5;} 40%{transform:translateY(-5px);opacity:1;} }

/* Кнопки выбора */
#navig-app .choices { display: flex; flex-direction: column; gap: var(--space-2); animation: msg-in 0.3s 0.1s var(--ease) both; }
#navig-app .choice-btn {
  background: var(--color-surface); border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm); color: var(--color-text); text-align: left; line-height: 1.4;
  transition: border-color 150ms var(--ease), background 150ms var(--ease), color 150ms var(--ease), transform 100ms var(--ease);
}
#navig-app .choice-btn:hover { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); transform: translateX(3px); }
#navig-app .choice-btn:active { transform: translateX(1px); }
#navig-app .choice-btn.selected { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); pointer-events: none; }

/* FAQ-аккордеон */
#navig-app .faq-block { display: flex; flex-direction: column; gap: var(--space-2); animation: msg-in 0.3s 0.1s var(--ease) both; width: 100%; }
#navig-app .faq-item { border: 1.5px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
#navig-app .faq-question {
  width: 100%; text-align: left; padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm); color: var(--color-text); line-height: 1.4;
  display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-2);
  background: var(--color-surface);
  transition: background 150ms var(--ease), color 150ms var(--ease);
}
#navig-app .faq-question:hover { background: var(--color-primary-light); color: var(--color-primary); }
#navig-app .faq-question.open { background: var(--color-primary-light); color: var(--color-primary); }
#navig-app .faq-arrow { flex-shrink: 0; transition: transform 250ms var(--ease); }
#navig-app .faq-question.open .faq-arrow { transform: rotate(180deg); }
#navig-app .faq-answer {
  display: none; padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm); color: var(--color-text); line-height: 1.6;
  background: var(--color-surface-2); border-top: 1px solid var(--color-divider);
}
#navig-app .faq-answer.open { display: block; }
#navig-app .faq-answer a { color: var(--color-primary); }

/* Карточка предупреждения / важного */
#navig-app .warn-card {
  background: var(--color-warn); border: 1px solid var(--color-warn-border);
  border-radius: var(--radius-md); padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5;
}
#navig-app .warn-card strong { color: #92400e; font-size: var(--text-sm); display: block; margin-bottom: var(--space-1); }

/* Донат-виджет */
#navig-app .donate-amounts { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); margin-bottom: var(--space-3); }
#navig-app .amount-btn { background: var(--color-surface); border: 1.5px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); font-size: var(--text-xs); text-align: center; cursor: pointer; transition: border-color 150ms var(--ease), background 150ms var(--ease), color 150ms var(--ease); }
#navig-app .amount-btn:hover, #navig-app .amount-btn.selected { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
#navig-app .amount-main { font-weight: 600; font-size: var(--text-sm); display: block; }
#navig-app .amount-sub { color: var(--color-text-muted); font-size: 10px; display: block; margin-top: 1px; }
#navig-app .amount-btn.selected .amount-sub { color: var(--color-primary); opacity: 0.75; }
#navig-app .custom-amount-row { display: flex; gap: var(--space-2); margin-bottom: var(--space-3); }
#navig-app .custom-amount-input { flex: 1; background: var(--color-surface); border: 1.5px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); font-size: var(--text-sm); color: var(--color-text); outline: none; transition: border-color 180ms var(--ease); font-family: var(--font-body); }
#navig-app .custom-amount-input:focus { border-color: var(--color-primary); }
#navig-app .custom-amount-input::placeholder { color: var(--color-text-muted); }
#navig-app .donate-actions { display: flex; flex-direction: column; gap: var(--space-2); }
#navig-app .btn-primary { background: var(--color-primary); color: white; border-radius: var(--radius-md); padding: var(--space-3) var(--space-5); font-size: var(--text-sm); font-weight: 500; text-align: center; display: flex; align-items: center; justify-content: center; gap: var(--space-2); transition: background 150ms var(--ease), transform 100ms var(--ease), box-shadow 150ms var(--ease); box-shadow: var(--shadow-sm); }
#navig-app .btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
#navig-app .btn-primary:active { transform: translateY(0); }
#navig-app .btn-secondary { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); border-radius: var(--radius-md); padding: var(--space-2) var(--space-4); font-size: var(--text-sm); font-weight: 500; text-align: center; display: flex; align-items: center; justify-content: center; gap: var(--space-2); transition: background 150ms var(--ease), transform 100ms var(--ease); }
#navig-app .btn-secondary:hover { background: var(--color-primary-light); transform: translateY(-1px); }
#navig-app .btn-ghost { background: transparent; color: var(--color-text-muted); font-size: var(--text-xs); text-align: center; padding: var(--space-2); border-radius: var(--radius-sm); transition: color 150ms var(--ease), background 150ms var(--ease); }
#navig-app .btn-ghost:hover { color: var(--color-text); background: var(--color-surface-offset); }

/* Статистическая карточка */
#navig-app .stat-line { background: var(--color-gold-light); border: 1px solid rgba(200,148,60,0.25); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5; }
#navig-app .stat-line strong { color: var(--color-gold); font-size: var(--text-sm); display: block; margin-bottom: var(--space-1); }

/* Футер */
#navig-app .chat-footer { padding: var(--space-3) var(--space-4); border-top: 1px solid var(--color-divider); background: var(--color-surface); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-shrink: 0; flex-wrap: wrap; }
#navig-app .chat-footer-contact { font-size: var(--text-xs); color: var(--color-text-muted); }
#navig-app .chat-footer-contact a { color: var(--color-primary); }
#navig-app .chat-footer-actions { display: flex; gap: var(--space-2); }
#navig-app .footer-btn { font-size: var(--text-xs); color: var(--color-text-muted); padding: var(--space-1) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-full); transition: border-color 150ms var(--ease), color 150ms var(--ease), background 150ms var(--ease); }
#navig-app .footer-btn:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }

/* Конфетти */
#confettiCanvas { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; pointer-events: none; z-index: 9999; }

/* Успех */
#navig-app .success-msg { background: #dcfce7; border: 1px solid #86efac; border-radius: var(--radius-md); padding: var(--space-4); text-align: center; }
#navig-app .success-msg .success-icon { font-size: 2rem; margin-bottom: var(--space-2); }
#navig-app .success-msg h3 { font-size: var(--text-base); font-weight: 600; color: var(--color-text); margin-bottom: var(--space-1); }
#navig-app .success-msg p { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5; }

/* Адаптив */
@media (max-width: 480px) {
  #navig-app .chat-widget { bottom: 0; right: 0; width: 100vw; max-height: 92dvh; border-radius: var(--radius-xl) var(--radius-xl) 0 0; }
  #navig-app .chat-fab { bottom: var(--space-4); right: var(--space-4); }
  #navig-app .donate-amounts { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  #navig-app *, #navig-app *::before, #navig-app *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
</style>