/* ===== Чат ГОСТ-AI ===== */
.chat-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: 100vh;
    overflow: hidden;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 0 16px;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px 0;
    scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

/* Пустой экран */
.chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 60vh;
    animation: fadeInUp 0.6s ease;
}

.chat-empty__icon {
    font-size: 64px;
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

.chat-empty h2 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.chat-empty p {
    color: var(--text-muted);
    margin-bottom: 32px;
}

.chat-suggestions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-width: 520px;
    width: 100%;
}

.suggestion {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 14px 20px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.25s;
    text-align: left;
}

.suggestion:hover {
    background: rgba(46, 204, 113, 0.08);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.suggestion:active { transform: scale(0.97); }

/* Сообщения */
.message {
    display: flex;
    gap: 14px;
    margin-bottom: 24px;
    animation: fadeInUp 0.4s ease;
}

.message--user { flex-direction: row-reverse; }

.message__avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.message--assistant .message__avatar {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border-color: transparent;
    box-shadow: 0 0 16px var(--accent-glow);
}

.message__content {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 14px 18px;
    max-width: 78%;
    line-height: 1.65;
    word-wrap: break-word;
    font-size: 15px;
}

.message--user .message__content {
    background: rgba(46, 204, 113, 0.12);
    border-color: rgba(46, 204, 113, 0.25);
}

.message__content h1,
.message__content h2,
.message__content h3 {
    margin: 12px 0 8px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.message__content h1 { font-size: 20px; }
.message__content h2 { font-size: 18px; }
.message__content h3 { font-size: 16px; }

.message__content p { margin-bottom: 10px; }

.message__content code {
    background: rgba(0,0,0,0.3);
    padding: 2px 6px;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
    color: #2ecc71;
}

.message__content pre {
    background: rgba(0,0,0,0.4);
    padding: 14px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 10px 0;
}

.message__content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.message__content ul {
    margin: 8px 0 8px 20px;
}

.message__content li { margin-bottom: 4px; }

/* Индикатор печати */
.typing-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin: 0 2px;
    background: var(--accent);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Поле ввода */
.chat-input {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    padding: 16px 0 24px;
    border-top: 1px solid var(--glass-border);
    background: var(--bg);
}

.chat-input textarea {
    flex: 1;
    resize: none;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 12px 18px;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    max-height: 200px;
    transition: all 0.25s;
}

.chat-input textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.chat-send {
    flex-shrink: 0;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.chat-send:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.chat-send:active:not(:disabled) { transform: scale(0.95); }

.chat-send:disabled { opacity: 0.5; cursor: not-allowed; }

/* Мобильная версия */
@media (max-width: 768px) {
    .chat-container { padding: 0 12px; }
    .chat-empty__icon { font-size: 48px; }
    .chat-empty h2 { font-size: 24px; }
    .chat-suggestions { grid-template-columns: 1fr; }
    .message__content { max-width: 85%; font-size: 14px; }
    .message__avatar { width: 32px; height: 32px; font-size: 14px; }
    .chat-input { padding: 12px 0 16px; }
    .chat-send { width: 42px; height: 42px; }
}

/* ===== Баннер тестового режима ===== */
.test-banner {
    background: linear-gradient(90deg, rgba(46,204,113,0.12), rgba(46,204,113,0.05));
    border-bottom: 1px solid rgba(46,204,113,0.25);
    padding: 10px 0;
}

.test-banner__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 16px;
    font-size: 14px;
    gap: 16px;
}

.test-banner__inner b { color: var(--accent); }

.test-banner .btn { padding: 8px 18px; font-size: 13px; border-radius: 10px; }

@media (max-width: 768px) {
    .test-banner__inner { font-size: 13px; flex-direction: column; gap: 8px; }
}