/* ========================================
   Material Design 3 - Design Tokens
   ======================================== */

:root {
    /* Primary colors - Красный */
    --md-sys-color-primary: #E63946;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #FFD9DC;
    --md-sys-color-on-primary-container: #410003;

    /* Secondary colors - Синий */
    --md-sys-color-secondary: #457B9D;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #D1E4FF;
    --md-sys-color-on-secondary-container: #001D35;

    /* Tertiary colors - Бирюзовый */
    --md-sys-color-tertiary: #A8DADC;
    --md-sys-color-on-tertiary: #003739;
    --md-sys-color-tertiary-container: #1F4E50;
    --md-sys-color-on-tertiary-container: #E0F4F6;

    /* Error */
    --md-sys-color-error: #BA1A1A;
    --md-sys-color-on-error: #FFFFFF;
    --md-sys-color-error-container: #FFDAD6;
    --md-sys-color-on-error-container: #410002;

    /* Background */
    --md-sys-color-background: #F8F9FA;
    --md-sys-color-on-background: #2B2D42;
    --md-sys-color-surface: #FFFFFF;
    --md-sys-color-on-surface: #2B2D42;
    --md-sys-color-surface-variant: #F1F3F5;
    --md-sys-color-on-surface-variant: #49454F;

    /* Outline */
    --md-sys-color-outline: #79747E;
    --md-sys-color-outline-variant: #CAC4D0;

    /* Elevation */
    --md-sys-elevation-1: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-2: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --md-sys-elevation-4: 0 6px 10px 4px rgba(0, 0, 0, 0.15), 0 2px 3px 0 rgba(0, 0, 0, 0.3);

    /* Typography */
    --md-sys-typescale-display-large-font: 'Roboto Flex', 'Roboto', sans-serif;
    --md-sys-typescale-display-large-size: 57px;
    --md-sys-typescale-display-large-weight: 400;

    --md-sys-typescale-headline-large-font: 'Roboto Flex', 'Roboto', sans-serif;
    --md-sys-typescale-headline-large-size: 32px;
    --md-sys-typescale-headline-large-weight: 400;

    --md-sys-typescale-title-large-font: 'Roboto', sans-serif;
    --md-sys-typescale-title-large-size: 22px;
    --md-sys-typescale-title-large-weight: 500;

    --md-sys-typescale-body-large-font: 'Roboto', sans-serif;
    --md-sys-typescale-body-large-size: 16px;
    --md-sys-typescale-body-large-weight: 400;

    /* Spacing - Material Design 3 */
    --md-sys-spacing-xs: 4px;
    --md-sys-spacing-sm: 8px;
    --md-sys-spacing-md: 16px;
    --md-sys-spacing-lg: 24px;
    --md-sys-spacing-xl: 32px;
    --md-sys-spacing-xxl: 48px;

    /* Shape */
    --md-sys-shape-corner-none: 0;
    --md-sys-shape-corner-xs: 4px;
    --md-sys-shape-corner-sm: 8px;
    --md-sys-shape-corner-md: 12px;
    --md-sys-shape-corner-lg: 16px;
    --md-sys-shape-corner-xl: 28px;
    --md-sys-shape-corner-full: 9999px;

    /* Animation */
    --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
    --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
    --md-sys-motion-duration-short: 200ms;
    --md-sys-motion-duration-medium: 400ms;
    --md-sys-motion-duration-long: 600ms;
}

/* ========================================
   BEM: page
   ======================================== */

.page {
    margin: 0;
    padding: 0;
    font-family: var(--md-sys-typescale-body-large-font);
    font-size: var(--md-sys-typescale-body-large-size);
    font-weight: var(--md-sys-typescale-body-large-weight);
    line-height: 1.6;
    color: var(--md-sys-color-on-background);
    background-color: var(--md-sys-color-background);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

*, *::before, *::after {
    box-sizing: border-box;
}

/* ========================================
   BEM: nav (Навигация)
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--md-sys-color-surface);
    box-shadow: var(--md-sys-elevation-2);
}

.nav__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--md-sys-spacing-md) var(--md-sys-spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.nav__brand {
    flex: 0 0 auto;
}

.nav__logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--md-sys-color-primary);
}

.nav__progress {
    flex: 1;
    margin: 0 var(--md-sys-spacing-xl);
    height: 4px;
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-full);
    overflow: hidden;
}

.nav__progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--md-sys-color-primary), var(--md-sys-color-secondary));
    border-radius: var(--md-sys-shape-corner-full);
    width: 3%;
    transition: width var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
}

.nav__controls {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-md);
}

.nav__button {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--md-sys-shape-corner-full);
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.nav__button:hover {
    background-color: var(--md-sys-color-secondary-container);
}

.nav__button:active {
    background-color: var(--md-sys-color-secondary);
    color: var(--md-sys-color-on-secondary);
}

.nav__counter {
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    min-width: 60px;
    text-align: center;
}

/* ========================================
   BEM: presentation
   ======================================== */

.presentation {
    margin-top: 72px;
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    height: calc(100vh - 72px);
}

/* ========================================
   BEM: slide
   ======================================== */

.slide {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--md-sys-spacing-xxl) var(--md-sys-spacing-xl);
    scroll-snap-align: start;
    opacity: 0;
    animation: slideIn var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized) forwards;
    position: relative;
}

.slide::before {
    content: '';
    position: absolute;
    top: 24px;
    right: 32px;
    width: 200px;
    height: 56px;
    background-image: url('Logo_угол.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center right;
    opacity: 0.92;
    z-index: 100;
}

/* Скрыть логотип на титульном и section слайдах */
.slide--hero::before,
.slide--section::before {
    display: none;
}

/* Адаптация логотипа для больших экранов */
@media (min-width: 1920px) {
    .slide::before {
        width: 240px;
        height: 68px;
        top: 32px;
        right: 48px;
    }
}

@media (min-width: 2560px) {
    .slide::before {
        width: 280px;
        height: 79px;
        top: 40px;
        right: 64px;
    }
}

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

.slide__container {
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (min-width: 1920px) {
    .slide__container {
        max-width: 1800px;
    }
}

@media (min-width: 2560px) {
    .slide__container {
        max-width: 2200px;
    }
}

.slide__title {
    font-family: var(--md-sys-typescale-headline-large-font);
    font-size: var(--md-sys-typescale-headline-large-size);
    font-weight: var(--md-sys-typescale-headline-large-weight);
    color: var(--md-sys-color-on-background);
    margin: 0 0 var(--md-sys-spacing-xl) 0;
    line-height: 1.2;
}

.slide__title--danger {
    color: var(--md-sys-color-primary);
}

.slide__title--info {
    color: var(--md-sys-color-secondary);
}

.slide__subtitle {
    font-size: 20px;
    color: var(--md-sys-color-secondary);
    margin-bottom: var(--md-sys-spacing-lg);
    font-weight: 500;
}

.slide--hero {
    background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-secondary) 100%);
    color: var(--md-sys-color-on-primary);
    position: relative;
}

.slide--hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.15);
    pointer-events: none;
    z-index: 0;
}

.slide--hero .slide__container {
    position: relative;
    z-index: 1;
}

.slide--section {
    background: linear-gradient(135deg, var(--md-sys-color-secondary) 0%, var(--md-sys-color-tertiary) 100%);
    position: relative;
}

.slide--section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.2) 100%);
    pointer-events: none;
    z-index: 0;
}

.slide--section .slide__container {
    position: relative;
    z-index: 1;
}

.slide--interactive {
    background: linear-gradient(135deg, #E0F4F6 0%, #B8E8EC 100%);
}

.slide--interactive .slide__title {
    color: #003739; /* Тёмно-бирюзовый для лучшего контраста */
    font-weight: 600;
}

.slide--interactive p {
    color: #003739;
}

.slide--interactive strong {
    color: var(--md-sys-color-primary);
}

.slide--interactive .step__text {
    color: #003739;
}

.slide--interactive .info-box {
    background-color: rgba(255, 255, 255, 0.95);
    border-left-color: #003739;
}

.slide--interactive .info-box p {
    color: #003739;
}

.slide--final {
    background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-secondary) 100%);
    color: var(--md-sys-color-on-primary);
    position: relative;
}

.slide--final::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.15);
    pointer-events: none;
    z-index: 0;
}

.slide--final .slide__container {
    position: relative;
    z-index: 1;
}

.slide--final .slide__title,
.slide--final h2,
.slide--final h3 {
    color: white;
}

.slide--final p {
    color: white;
}

.slide--final .contact__info {
    color: white;
}

/* ========================================
   BEM: hero
   ======================================== */

.hero {
    text-align: center;
}

.hero__title {
    font-size: 56px;
    font-weight: 700;
    margin: 0 0 var(--md-sys-spacing-lg) 0;
    color: var(--md-sys-color-on-primary);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
    font-size: 24px;
    margin-bottom: var(--md-sys-spacing-xxl);
    opacity: 0.95;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__speaker {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-sys-spacing-lg);
    margin-top: var(--md-sys-spacing-xxl);
    padding: var(--md-sys-spacing-xl);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--md-sys-shape-corner-xl);
}

.hero__avatar {
    flex-shrink: 0;
}

.hero__info {
    text-align: left;
}

.hero__name {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 var(--md-sys-spacing-xs) 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__role {
    font-size: 16px;
    margin: 0 0 var(--md-sys-spacing-sm) 0;
    opacity: 0.9;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero__clinic {
    font-size: 14px;
    margin: 0;
    opacity: 0.8;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ========================================
   BEM: card (Material Design 3 Cards)
   ======================================== */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--md-sys-spacing-lg);
}

.card {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xl);
    box-shadow: var(--md-sys-elevation-2);
    transition: box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard),
                transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.card:hover {
    box-shadow: var(--md-sys-elevation-4);
    transform: translateY(-4px);
}

.card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--md-sys-shape-corner-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--md-sys-spacing-md);
    font-size: 32px;
}

.card--primary .card__icon {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.card--secondary .card__icon {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.card--tertiary .card__icon {
    background-color: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
}

.card__title {
    font-size: var(--md-sys-typescale-title-large-size);
    font-weight: var(--md-sys-typescale-title-large-weight);
    margin: 0 0 var(--md-sys-spacing-sm) 0;
    color: var(--md-sys-color-on-surface);
}

.card__text {
    margin: 0;
    color: var(--md-sys-color-on-surface-variant);
    line-height: 1.5;
}

/* ========================================
   BEM: placeholder
   ======================================== */

.placeholder {
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xxl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    border: 2px dashed var(--md-sys-color-outline-variant);
}

.placeholder .material-symbols-outlined {
    font-size: 64px;
    color: var(--md-sys-color-outline);
    margin-bottom: var(--md-sys-spacing-md);
}

.placeholder__text {
    font-size: 18px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    margin: var(--md-sys-spacing-sm) 0;
    text-align: center;
}

.placeholder__desc {
    font-size: 14px;
    color: var(--md-sys-color-outline);
    margin: 0;
    text-align: center;
}

.placeholder--avatar {
    width: 120px;
    height: 120px;
    border-radius: var(--md-sys-shape-corner-full);
    min-height: auto;
}

.placeholder--qr {
    width: 300px;
    height: 300px;
    min-height: auto;
}

/* ========================================
   BEM: Остальные компоненты (сократим)
   ======================================== */

.quote {
    position: relative;
    padding: var(--md-sys-spacing-xxl);
}

.quote::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 120px;
    color: var(--md-sys-color-secondary);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}

.quote__text {
    font-size: 32px;
    font-weight: 400;
    font-style: italic;
    color: var(--md-sys-color-secondary);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.5;
    letter-spacing: 0.02em;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .quote__text {
        font-size: 24px;
    }
}

.section__title {
    font-size: 48px;
    font-weight: 700;
    color: var(--md-sys-color-on-primary);
    text-align: center;
    margin: 0;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    letter-spacing: 0.5px;
}

/* Features, Lists, etc - улучшенная версия */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--md-sys-spacing-xl);
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: var(--md-sys-spacing-md);
    padding: var(--md-sys-spacing-lg);
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-md);
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.feature:hover {
    box-shadow: var(--md-sys-elevation-3);
    transform: translateY(-2px);
}

.feature__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-radius: var(--md-sys-shape-corner-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.feature__text {
    font-size: 17px;
    line-height: 1.6;
    color: var(--md-sys-color-on-surface);
    margin: 0;
    font-weight: 500;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero__title {
        font-size: 36px;
    }

    .hero__speaker {
        flex-direction: column;
        text-align: center;
    }

    .hero__info {
        text-align: center;
    }

    .cards {
        grid-template-columns: 1fr;
    }
}

/* Анимация дыхания */
.breathing-demo__circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--md-sys-color-secondary), var(--md-sys-color-tertiary));
    border-radius: var(--md-sys-shape-corner-full);
    animation: breathe 4s ease-in-out infinite;
    margin: var(--md-sys-spacing-xl) auto;
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

/* ========================================
   Дополнительные компоненты
   ======================================== */

/* Определения */
.definition {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xl);
    box-shadow: var(--md-sys-elevation-2);
}

.definition--danger {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.definition--info {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.definition__icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: var(--md-sys-spacing-md);
}

.definition__title {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 var(--md-sys-spacing-sm) 0;
    text-align: center;
}

.definition__text {
    font-size: 16px;
    margin: 0;
    text-align: center;
    line-height: 1.6;
}

/* Информационные блоки */
.info-box {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xxl);
    box-shadow: var(--md-sys-elevation-2);
    border-left: 4px solid var(--md-sys-color-secondary);
}

.info-box p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--md-sys-color-on-surface);
    margin: 0;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.info-box p strong {
    color: var(--md-sys-color-primary);
    font-weight: 600;
}

/* Списки */
.list {
    list-style: none;
    padding: 0;
    margin: var(--md-sys-spacing-lg) 0;
}

.list__item {
    display: flex;
    align-items: flex-start;
    gap: var(--md-sys-spacing-md);
    padding: var(--md-sys-spacing-lg);
    margin-bottom: var(--md-sys-spacing-md);
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-md);
    font-size: 17px;
    line-height: 1.7;
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.list__item:hover {
    box-shadow: var(--md-sys-elevation-2);
    transform: translateX(4px);
}

.list__item .material-symbols-outlined {
    color: var(--md-sys-color-primary);
    font-size: 28px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Группы симптомов */
.symptom-group {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xxl);
    box-shadow: var(--md-sys-elevation-2);
    transition: box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.symptom-group:hover {
    box-shadow: var(--md-sys-elevation-3);
}

.symptom-group--danger {
    border-left: 6px solid var(--md-sys-color-error);
}

.symptom-group h3 {
    margin: 0 0 var(--md-sys-spacing-lg) 0;
    color: var(--md-sys-color-primary);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.symptom-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.symptom-list li {
    padding: var(--md-sys-spacing-md) 0;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    font-size: 16px;
    line-height: 1.7;
    color: var(--md-sys-color-on-surface);
}

.symptom-list li:last-child {
    border-bottom: none;
}

/* Упражнения */
.exercise {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    padding: var(--md-sys-spacing-xxl);
    box-shadow: var(--md-sys-elevation-2);
}

.exercise__steps {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-lg);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--md-sys-spacing-lg);
    padding: var(--md-sys-spacing-lg);
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-md);
    transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.step:hover {
    background-color: var(--md-sys-color-secondary-container);
    transform: translateX(4px);
}

.step__number {
    width: 48px;
    height: 48px;
    border-radius: var(--md-sys-shape-corner-full);
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 22px;
    flex-shrink: 0;
    box-shadow: var(--md-sys-elevation-2);
}

.step__text {
    margin: 0;
    font-size: 17px;
    line-height: 1.7;
    color: var(--md-sys-color-on-surface);
    padding-top: 4px;
}

/* Алерты */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--md-sys-spacing-lg);
    padding: var(--md-sys-spacing-xl);
    border-radius: var(--md-sys-shape-corner-lg);
    background-color: var(--md-sys-color-surface);
    border-left: 6px solid var(--md-sys-color-primary);
    box-shadow: var(--md-sys-elevation-2);
}

.alert--warning {
    background-color: #FFF9E6;
    border-left-color: #F4A261;
}

.alert--danger {
    background-color: var(--md-sys-color-error-container);
    border-left-color: var(--md-sys-color-error);
}

.alert__icon {
    font-size: 40px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.alert--warning .alert__icon {
    color: #D97706; /* Более тёмный оранжевый для лучшего контраста */
}

.alert__text {
    margin: 0;
    font-size: 17px;
    line-height: 1.7;
    padding-top: 4px;
}

.alert__text strong {
    font-weight: 600;
    color: var(--md-sys-color-primary);
}

/* Грид системы */
.grid {
    display: grid;
    gap: var(--md-sys-spacing-lg);
}

.grid--2col {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Чеклисты */
.checklist {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-md);
}

.checklist__item {
    display: flex;
    align-items: flex-start;
    gap: var(--md-sys-spacing-md);
    padding: var(--md-sys-spacing-lg);
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-md);
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.checklist__item:hover {
    box-shadow: var(--md-sys-elevation-3);
    transform: translateX(4px);
}

.checklist__icon {
    color: var(--md-sys-color-secondary);
    font-size: 32px;
    flex-shrink: 0;
    margin-top: 2px;
}

.checklist__text {
    margin: 0;
    font-size: 17px;
    line-height: 1.6;
    font-weight: 500;
}

/* Сравнения */
.comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-sys-spacing-xl);
    flex-wrap: wrap;
}

.comparison--intro {
    gap: var(--md-sys-spacing-xxl);
}

.comparison__item {
    flex: 1;
    min-width: 250px;
    padding: var(--md-sys-spacing-xl);
    border-radius: var(--md-sys-shape-corner-lg);
    background-color: var(--md-sys-color-surface);
    text-align: center;
    box-shadow: var(--md-sys-elevation-2);
}

.comparison__item--danger {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.comparison__item--info {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.comparison__icon {
    font-size: 64px;
    margin-bottom: var(--md-sys-spacing-md);
}

.comparison__label {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.comparison__vs {
    font-size: 32px;
    font-weight: 700;
    color: var(--md-sys-color-outline);
}

/* Хайлайты */
.highlight {
    background: linear-gradient(135deg, var(--md-sys-color-primary), var(--md-sys-color-secondary));
    color: white;
    padding: var(--md-sys-spacing-xl);
    border-radius: var(--md-sys-shape-corner-lg);
    text-align: center;
    position: relative;
}

.highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--md-sys-shape-corner-lg);
    pointer-events: none;
    z-index: 0;
}

.highlight__text {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Инфографика */
.infographic {
    margin: var(--md-sys-spacing-xl) 0;
}

/* Процессы */
.process {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: var(--md-sys-spacing-lg);
}

.process__step {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-lg);
    padding: var(--md-sys-spacing-xxl);
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-lg);
    box-shadow: var(--md-sys-elevation-2);
    transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
    position: relative;
}

.process__step:hover {
    transform: translateX(8px);
    box-shadow: var(--md-sys-elevation-3);
}

.process__icon-wrapper {
    width: 72px;
    height: 72px;
    border-radius: var(--md-sys-shape-corner-full);
    background: linear-gradient(135deg, var(--md-sys-color-primary), var(--md-sys-color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--md-sys-elevation-2);
}

.process__icon {
    font-size: 40px;
    color: var(--md-sys-color-on-primary);
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 40;
}

.process__number {
    position: absolute;
    top: -12px;
    left: -12px;
    width: 40px;
    height: 40px;
    border-radius: var(--md-sys-shape-corner-full);
    background-color: var(--md-sys-color-tertiary);
    color: var(--md-sys-color-on-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    box-shadow: var(--md-sys-elevation-2);
    border: 3px solid var(--md-sys-color-surface);
}

.process__content {
    flex: 1;
}

.process__title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--md-sys-spacing-sm);
    color: var(--md-sys-color-primary);
}

.process__text {
    font-size: 17px;
    line-height: 1.7;
    color: var(--md-sys-color-on-surface);
}

.process__connector {
    height: 32px;
    width: 4px;
    background: linear-gradient(to bottom,
        var(--md-sys-color-primary),
        var(--md-sys-color-secondary)
    );
    margin-left: 34px;
    border-radius: 2px;
}

@media (max-width: 768px) {
    .process__step {
        flex-direction: column;
        text-align: center;
        gap: var(--md-sys-spacing-md);
    }

    .process__number {
        top: -12px;
        left: 50%;
        transform: translateX(-50%);
    }

    .process__connector {
        margin: 0 auto;
    }
}

/* Цветные карточки */
.card-blue {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    padding: var(--md-sys-spacing-xxl);
    border-radius: var(--md-sys-shape-corner-lg);
    box-shadow: var(--md-sys-elevation-2);
    transition: transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.card-blue:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-sys-elevation-3);
}

.card-blue h3,
.card-red h3,
.card-teal h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 var(--md-sys-spacing-md) 0;
    line-height: 1.3;
}

.card-blue p,
.card-red p,
.card-teal p {
    font-size: 16px;
    line-height: 1.7;
    margin: var(--md-sys-spacing-sm) 0;
    letter-spacing: 0.01em;
}

.card-blue ul,
.card-red ul,
.card-teal ul {
    margin: var(--md-sys-spacing-md) 0;
    padding-left: var(--md-sys-spacing-lg);
}

.card-blue li,
.card-red li,
.card-teal li {
    margin-bottom: var(--md-sys-spacing-sm);
    line-height: 1.7;
    font-size: 16px;
}

.card-blue strong,
.card-red strong,
.card-teal strong {
    font-weight: 600;
}

.card-red {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    padding: var(--md-sys-spacing-xxl);
    border-radius: var(--md-sys-shape-corner-lg);
    box-shadow: var(--md-sys-elevation-2);
    transition: transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.card-red:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-sys-elevation-3);
}

.card-teal {
    background-color: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
    padding: var(--md-sys-spacing-xxl);
    border-radius: var(--md-sys-shape-corner-lg);
    box-shadow: var(--md-sys-elevation-2);
    transition: transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.card-teal:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-sys-elevation-3);
}

/* Контакты */
.contact {
    text-align: center;
}

.contact__qr {
    margin: var(--md-sys-spacing-xl) auto;
    max-width: 300px;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-md);
    margin-top: var(--md-sys-spacing-xl);
}

.contact__item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-sys-spacing-sm);
    font-size: 18px;
}

.contact__item .material-symbols-outlined {
    font-size: 24px;
    color: var(--md-sys-color-primary);
}