/* 🎨 МЕДИЦИНСКИЙ АССИСТЕНТ - СТИЛИ В СТИЛЕ DOCUS.AI */
/* Современный дизайн с зелено-синими градиентами */

/* ============================================
   🌐 ОБЩИЕ СТИЛИ И ПЕРЕМЕННЫЕ
   ============================================ */

:root {
    /* Цветовая палитра Docus.ai */
    --primary-color: #00C9A7;      /* Бирюзовый */
    --primary-dark: #00A88E;       /* Темный бирюзовый */
    --secondary-color: #6B46C1;    /* Фиолетовый */
    --accent-color: #FFB800;       /* Акцентный желтый */
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #00C9A7 0%, #00D4BD 100%);
    --gradient-hero: linear-gradient(135deg, #E0F7F4 0%, #F0F9FF 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fffe 100%);
    
    /* Нейтральные цвета */
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --border-color: #e2e8f0;
    --background: #ffffff;
    --background-light: #f7fafc;
    
    /* Тени */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    
    /* Радиусы */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Переходы */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background-light);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   📦 КОНТЕЙНЕРЫ
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   🎯 HEADER (Шапка)
   ============================================ */

header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0, 201, 167, 0.3));
}

/* ============================================
   🧭 НАВИГАЦИЯ
   ============================================ */

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

nav a:hover::after {
    width: 100%;
}

/* ============================================
   🔘 КНОПКИ
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 201, 167, 0.3);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 201, 167, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--text-light);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--text-secondary);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    box-shadow: none;
}

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* ============================================
   📄 ОСНОВНОЙ КОНТЕНТ
   ============================================ */

main {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: 1rem 3rem;
    box-shadow: var(--shadow-md);
    margin: 0.5rem 0;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   🏠 HERO СЕКЦИЯ (Главная страница)
   ============================================ */

.hero {
    background: var(--gradient-hero);
    padding: 2rem 0;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 201, 167, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-text h1 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    width: 100%;
    max-width: 500px;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ============================================
   📊 КАРТОЧКИ
   ============================================ */

.card {
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem auto;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--primary-color);
}

.card ul {
    list-style: none;
    padding-left: 0;
}

.card ul li {
    padding-left: 0;
    margin-bottom: 0.5rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

/* Карточки статистики */
.stat-card {
    text-align: center;
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(0, 201, 167, 0.15);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1rem 0;
}

/* ============================================
   🔒 СЕКЦИЯ БЕЗОПАСНОСТИ
   ============================================ */

.security-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    margin: 4rem 0;
    border: 1px solid rgba(0, 201, 167, 0.2);
}

.security-section h3 {
    color: var(--primary-dark);
    font-size: 2rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.security-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.badge {
    background: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ============================================
   📝 ФОРМЫ
   ============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition-fast);
    background: var(--background);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 201, 167, 0.1);
}

/* ============================================
   💬 ЧАТ
   ============================================ */

.chat-container {
    background: var(--background-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    max-height: 500px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.chat-container::-webkit-scrollbar {
    width: 8px;
}

.chat-container::-webkit-scrollbar-track {
    background: var(--background-light);
}

.chat-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.message {
    margin-bottom: 1.5rem;
    animation: messageSlide 0.3s ease;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.user-message {
    text-align: right;
}

.ai-message {
    text-align: left;
}

.message-bubble {
    display: inline-block;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    max-width: 70%;
    word-wrap: break-word;
    box-shadow: var(--shadow-sm);
}

.user-message .message-bubble {
    background: var(--gradient-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.ai-message .message-bubble {
    background: white;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
    white-space: pre-line; 
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* Индикатор печатания */
.typing-dots {
    display: inline-flex;
    gap: 4px;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* ============================================
   ⚠️ АЛЕРТЫ
   ============================================ */

.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    border-left: 4px solid;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-color: #dc3545;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-color: #17a2b8;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-color: #ffc107;
}

/* ============================================
   🎨 FOOTER
   ============================================ */

footer {
    background: linear-gradient(135deg, var(--text-primary) 0%, #2d3748 100%);
    color: white;
    padding: 3rem 0;
    margin-top: 1rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   ⭐ РЕЙТИНГ (TRUSTPILOT СТИЛЬ)
   ============================================ */

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin: 2rem 0;
}

.trust-stars {
    color: #FFB800;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.trust-rating {
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   📱 АДАПТИВНОСТЬ
   ============================================ */

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    main {
        padding: 1.5rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .message-bubble {
        max-width: 85%;
    }

    .lang-dropdown {
        right: auto;
        left: 0;
    }
}

/* ============================================
   ✨ ДОПОЛНИТЕЛЬНЫЕ ЭФФЕКТЫ
   ============================================ */

/* Плавное появление элементов при скролле */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Пульсация для важных элементов */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Эффект свечения */
.glow {
    box-shadow: 0 0 20px rgba(0, 201, 167, 0.4);
}

/* Градиентный текст */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   🎯 UTILITY КЛАССЫ
   ============================================ */

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--text-secondary);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* ============================================
   🌍 ПЕРЕКЛЮЧАТЕЛЬ ЯЗЫКА
   ============================================ */

.language-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 201, 167, 0.2);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--border-color);
}

.lang-option:last-child {
    border-bottom: none;
}

.lang-option:hover {
    background: var(--background-light);
    color: var(--primary-color);
}

.lang-option.active {
    background: var(--gradient-hero);
    color: var(--primary-color);
    font-weight: 600;
}