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

:root {
    --primary-green: #4CAF50;
    --light-green: #81C784;
    --dark-green: #388E3C;
    --accent-green: #66BB6A;
    --text-dark: #212121;
    --text-medium: #424242;
    --text-light: #757575;
    --bg-light: #F5F5F5;
    --white: #FFFFFF;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 50%, #A5D6A7 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    color: var(--text-dark);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Декоративные элементы фона */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: float 25s infinite linear;
    pointer-events: none;
    z-index: 0;
}

@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-50px, -50px) rotate(360deg); }
}

.slide-container {
    background: var(--white);
    color: var(--text-dark);
    max-width: 1400px;
    width: 100%;
    min-height: auto;
    max-height: 95vh;
    border-radius: 20px;
    padding: 60px 120px 220px;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(76, 175, 80, 0.08);
    animation: slideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.slide-title {
    font-size: 3em;
    font-weight: 800;
    margin-bottom: 35px;
    color: var(--text-dark);
    text-align: center;
    line-height: 1.15;
    letter-spacing: -0.03em;
    position: relative;
    word-wrap: break-word;
    hyphens: auto;
}

.hero-subtitle {
    max-width: 850px;
    margin: 0 auto;
    font-size: 1.25em;
    color: var(--text-medium);
    text-align: center;
    line-height: 1.5;
}

.slide-title::after {
    content: '';
    display: block;
    width: 120px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-green) 0%, var(--accent-green) 100%);
    margin: 25px auto 0;
    border-radius: 3px;
    opacity: 0.9;
}

.slide-content {
    font-size: 1.5em;
    line-height: 1.75;
    text-align: center;
    flex-grow: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    color: var(--text-dark);
    max-width: 1000px;
    margin: 0 auto;
}

.hero-cta {
    margin: 30px auto 0;
    padding: 22px 64px;
    border-radius: 14px;
    border: none;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: var(--white);
    font-size: 1.35em;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-smooth);
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.hero-cta:focus-visible {
    outline: 3px solid rgba(255, 255, 255, 0.8);
    outline-offset: 4px;
}

.slide-content p {
    margin: 18px 0;
    font-weight: 400;
    color: var(--text-medium);
}

.slide-content p:first-child {
    font-size: 1.3em;
    color: var(--text-light);
    font-weight: 500;
    line-height: 1.6;
}

.slide-content ul {
    list-style: none;
    text-align: left;
    max-width: 900px;
    margin: 30px auto;
    padding: 0;
}

.slide-content-with-image ul {
    margin: 30px 0;
    max-width: 100%;
}

.slide-content li {
    margin: 20px 0;
    padding: 20px 20px 20px 70px;
    position: relative;
    background: linear-gradient(90deg, rgba(76, 175, 80, 0.06) 0%, rgba(76, 175, 80, 0.02) 100%);
    border-radius: 14px;
    border-left: 5px solid var(--primary-green);
    transition: var(--transition-smooth);
    font-weight: 500;
    font-size: 0.95em;
    line-height: 1.6;
}

.slide-content li:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(90deg, rgba(76, 175, 80, 0.12) 0%, rgba(76, 175, 80, 0.06) 100%);
    border-left-color: var(--dark-green);
    border-left-width: 6px;
}

.slide-content li:before {
    content: "→";
    position: absolute;
    left: 28px;
    color: var(--primary-green);
    font-weight: bold;
    font-size: 1.4em;
    top: 50%;
    transform: translateY(-50%);
    transition: var(--transition-smooth);
}

.slide-content li:hover:before {
    transform: translateY(-50%) translateX(3px);
    color: var(--dark-green);
}

/* Layout для слайдов с изображениями */
.slide-content-with-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.slide-content-with-image .mockup {
    position: relative;
    margin: 0 auto;
    width: 100%;
    max-width: 420px;
    border-radius: 40px;
    padding: clamp(18px, 3vw, 26px);
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(244, 246, 249, 0.95));
    border: 4px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 20px 40px rgba(11, 34, 17, 0.25);
}

.slide-content-with-image .mockup::after {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 6px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.15);
}

.mockup-screen {
    border-radius: 28px;
    overflow: hidden;
    border: 2px solid rgba(0, 0, 0, 0.08);
    background: #050505;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.4);
}

.mockup-screen .slide-image {
    border-radius: 0;
    max-height: 500px;
    box-shadow: none;
}

.slide-content-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slide-content-text p,
.slide-content-text ul {
    text-align: left;
}

.slide-content-text p:first-child {
    text-align: left;
}

.slide-image {
    width: 100%;
    max-width: 100%;
    max-height: 500px;
    height: auto;
    border-radius: 18px;
    margin: 0;
    display: block;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-smooth);
    border: none;
    object-fit: cover;
}

.slide-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(76, 175, 80, 0.25);
}

/* Для слайдов без изображений - обычный layout */
.slide-content:not(:has(.slide-image)) {
    max-width: 1000px;
}

.slide-author {
    text-align: center;
    font-size: 1.3em;
    color: var(--dark-green);
    margin-top: 30px;
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.5;
}

.navigation {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 60px;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 2;
}

.navigation .nav-button {
    pointer-events: auto;
}

.nav-button {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    border: 2px solid rgba(76, 175, 80, 0.35);
    background: var(--white);
    color: var(--dark-green);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
    text-decoration: none;
    position: relative;
    font-size: 0;
    overflow: hidden;
}

.nav-button span[aria-hidden="true"] {
    font-size: 1.9em;
    line-height: 1;
}

.nav-button:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-button:active {
    transform: translateY(0);
}

.nav-button:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    box-shadow: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    border: 0;
    white-space: nowrap;
}

.slide-number {
    position: absolute;
    top: 35px;
    right: 45px;
    color: var(--text-light);
    font-size: 0.9em;
    font-weight: 600;
    background: var(--bg-light);
    padding: 10px 18px;
    border-radius: 25px;
    letter-spacing: 0.5px;
    border: 1px solid rgba(76, 175, 80, 0.1);
}

/* Специальные стили для разных типов слайдов */
.slide-content .highlight {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--dark-green);
    margin: 35px 0;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.slide-content .stat {
    font-size: 3em;
    font-weight: 800;
    color: var(--primary-green);
    margin: 25px 0;
    text-shadow: 0 3px 6px rgba(76, 175, 80, 0.15);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Декоративный элемент в стиле референсов */
.slide-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 28%;
    height: 100%;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.06) 0%, rgba(76, 175, 80, 0.02) 100%);
    border-radius: 20px 0 0 20px;
    z-index: -1;
}

/* Футер */
.slide-footer {
    position: absolute;
    bottom: clamp(20px, 3vw, 30px);
    left: 0;
    right: 0;
    padding: 0 clamp(30px, 4vw, 120px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75em;
    color: var(--text-light);
    border-top: 1px solid var(--bg-light);
    padding-top: 12px;
    line-height: 1.4;
}

.slide-footer-left {
    flex: 1;
    font-weight: 500;
}

.slide-footer-right {
    text-align: right;
    font-weight: 600;
    color: var(--text-medium);
}

/* Стиль для статистики в два столбца */
.stats-grid {
    display: flex;
    justify-content: flex-start;
    gap: 40px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.stats-grid > div {
    text-align: left;
    min-width: 120px;
}

.stats-grid .stat {
    font-size: 2.2em;
    margin-bottom: 10px;
}

.stats-grid p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.9em;
    font-weight: 500;
}

/* Для stats-grid внутри slide-content-with-image */
.slide-content-with-image .stats-grid {
    justify-content: flex-start;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .slide-container {
        padding: 50px 70px 200px;
        max-width: 95%;
        max-height: 96vh;
    }
    
    .slide-title {
        font-size: 2.6em;
    }
    
    .slide-container::before {
        width: 22%;
    }
    
    .slide-footer {
        padding: 0 70px;
    }
    
    .slide-content {
        font-size: 1.5em;
    }
    
    .slide-content-with-image {
        gap: 50px;
    }
    
    .slide-image {
        max-width: 450px;
        max-height: 450px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 20px 10px;
    }
    
    .slide-container {
        padding: 50px 40px 200px;
        min-height: auto;
        max-height: 97vh;
        border-radius: 20px;
    }
    
    .slide-container::before {
        display: none;
    }
    
    .slide-title {
        font-size: 2.2em;
        margin-bottom: 40px;
    }
    
    .slide-content {
        font-size: 1.4em;
    }
    
    .slide-content-with-image {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .slide-image {
        max-width: 100%;
        max-height: 300px;
        margin: 0 auto;
    }

    .slide-content-with-image .mockup {
        max-width: 320px;
        padding: 16px;
    }
    
    .slide-content li {
        padding: 20px 20px 20px 55px;
        margin: 20px 0;
    }
    
    .slide-content li:before {
        left: 20px;
    }
    
    .navigation {
        padding: 0 20px;
    }
    
    .nav-button {
        width: 52px;
        height: 52px;
    }
    
    .slide-number {
        top: 25px;
        right: 25px;
        font-size: 0.85em;
        padding: 8px 14px;
    }
    
    .slide-content .stat {
        font-size: 2.2em;
    }
    
    .slide-footer {
        flex-direction: column;
        text-align: center;
        gap: 10px;
        padding: 0 40px;
        bottom: 25px;
        font-size: 0.75em;
    }
    
    .slide-footer-right {
        text-align: center;
    }
    
    .stats-grid {
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .slide-container {
        padding: 40px 25px 200px;
        max-height: 98vh;
    }
    
    .slide-footer {
        padding: 0 25px;
        bottom: 20px;
        font-size: 0.7em;
    }
    
    .slide-title {
        font-size: 1.8em;
        margin-bottom: 30px;
    }
    
    .slide-content {
        font-size: 1.2em;
    }
    
    .slide-content .stat {
        font-size: 1.8em;
    }
    
    .nav-button {
        width: 46px;
        height: 46px;
    }

    .slide-content-with-image .mockup {
        max-width: 280px;
        padding: 12px;
    }
}

/* Плавная прокрутка */
html {
    scroll-behavior: smooth;
}

/* Улучшенная типографика */
h1, h2, h3 {
    letter-spacing: -0.02em;
    font-weight: 800;
}

p {
    letter-spacing: 0.01em;
}

/* Клавиатурная навигация */
*:focus-visible {
    outline: 3px solid var(--primary-green);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Улучшение производительности */
.slide-container,
.slide-image,
.nav-button {
    will-change: transform;
}

/* Печать */
@media print {
    body {
        background: white;
    }
    
    .slide-container {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .navigation {
        display: none;
    }
}