/* Глобальные настройки и переменные */
:root {
    --font-main: 'Roboto', sans-serif;
    --font-headings: 'Merriweather', serif;
    
    --color-background: #FDFEFE;
    --color-text: #34495E;
    --color-primary: #1A5276;
    --color-accent: #F39C12;
    --color-surface: #FFFFFF;
    --color-border: #EAECEE;

    --container-width: 1200px;
    --container-padding: 1.5rem;
    
    --transition-duration: 0.3s;
}

/* Сброс стилей и базовые настройки */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-background);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--color-primary);
    line-height: 1.2;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-duration) ease;
}

a:hover {
    color: var(--color-accent);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background-color: transparent;
    font-family: inherit;
}

/* Стили хедера */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-family: var(--font-headings);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.header__logo:hover {
    color: var(--color-primary);
}

.header__nav {
    display: none; /* Скрыто на мобильных */
}

.header__nav-list {
    display: flex;
    gap: 2rem;
}

.header__nav-link {
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-duration) ease;
}

.header__nav-link:hover::after {
    width: 100%;
}

.header__burger {
    display: block; /* Показываем бургер на мобильных */
    color: var(--color-primary);
}

.header__burger i {
    width: 28px;
    height: 28px;
}


/* Стили футера */
.footer {
    background-color: var(--color-primary);
    color: var(--color-background);
    padding: 4rem 0;
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 2.5rem;
}

.footer__column--logo {
    margin-bottom: 1rem;
}

.footer__logo {
    font-family: var(--font-headings);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-background);
    margin-bottom: 1rem;
    display: inline-block;
}

.footer__logo:hover {
    color: var(--color-background);
}

.footer__copyright {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 1rem;
}

.footer__title {
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer__link {
    color: var(--color-background);
    opacity: 0.8;
    display: inline-block;
    padding: 0.25rem 0;
    transition: opacity var(--transition-duration) ease, color var(--transition-duration) ease;
}

.footer__link:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer__list--contacts li {
    display: flex;
    align-items: center;
}

.footer__link--static {
    opacity: 0.8;
}

.footer__icon {
    width: 18px;
    height: 18px;
    margin-right: 0.75rem;
    flex-shrink: 0;
    position: relative;
    top: 2px;
}

/* Адаптивность */
@media (min-width: 768px) {
    .footer__container {
        grid-template-columns: 2fr repeat(3, 1fr);
        gap: 2rem;
    }
}

@media (min-width: 1024px) {
    .header__nav {
        display: block;
    }
    .header__burger {
        display: none;
    }
}

/*
========================================
Hero секция
========================================
*/
.hero {
    padding: 4rem 0;
    overflow: hidden; /* Чтобы анимация появления не выходила за пределы блока */
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.hero__title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

/* Стили для анимации заголовка */
.hero__title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.hero__subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 550px;
}

/* Общий стиль для кнопок */
.button {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 1rem;
    border-radius: 5px;
    text-align: center;
    transition: background-color var(--transition-duration) ease, transform var(--transition-duration) ease;
}

.hero__cta-button {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.hero__cta-button:hover {
    background-color: #f7a828;
    color: var(--color-primary);
    transform: translateY(-2px);
}

.hero__visual img {
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}


/* Адаптивность для Hero секции */
@media (min-width: 768px) {
    .hero {
        padding: 6rem 0;
    }

    .hero__container {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
    
    .hero__title {
        font-size: 3rem;
    }
}
/*
========================================
Общие стили для секций
========================================
*/
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.section-header__title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.section-header__subtitle {
    font-size: 1.1rem;
    color: #5D6D7E; /* Немного приглушенный цвет для подзаголовка */
}

/*
========================================
Секция Услуги
========================================
*/
.services {
    background-color: var(--color-surface);
    padding: 4rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.services__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.service-card {
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(26, 82, 118, 0.1);
}

.service-card__icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #EAF2F8; /* Светлый фон для иконки */
    margin-bottom: 1.5rem;
}

.service-card__icon i {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.service-card__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.service-card__description {
    font-size: 1rem;
    line-height: 1.6;
}


/* Адаптивность для секции Услуги */
@media (min-width: 768px) {
    .services {
        padding: 6rem 0;
    }
    .services__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    .section-header__title {
        font-size: 2.5rem;
    }
}
/*
========================================
Секция Подход
========================================
*/
.approach {
    padding: 4rem 0;
    background-color: var(--color-background);
}

.approach__timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

/* Декоративная линия */
.approach__timeline::before {
    content: '';
    position: absolute;
    top: 20px;
    bottom: 20px;
    left: 24px;
    width: 2px;
    background-color: var(--color-border);
    transform: translateX(-50%);
}

.approach__step {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    position: relative;
}

.approach__step-visual img {
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    width: 100%;
}

.approach__step-content {
    position: relative;
    padding-left: 50px; /* Отступ для номера */
}

.approach__step-number {
    position: absolute;
    left: -25px;
    top: -5px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-family: var(--font-headings);
    font-size: 1.25rem;
    font-weight: 700;
    border: 3px solid var(--color-background);
    z-index: 2;
}

.approach__step-title {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}


/* Адаптивность для секции Подход */
@media (min-width: 768px) {
    .approach {
        padding: 6rem 0;
    }

    .approach__timeline {
        gap: 0;
    }
    
    .approach__timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .approach__step {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
        align-items: center;
        padding: 2rem 0;
    }

    .approach__step:nth-child(even) {
        direction: rtl; /* Меняем направление для "шахматного" порядка */
    }

    .approach__step:nth-child(even) > * {
        direction: ltr; /* Возвращаем нормальное направление для дочерних элементов */
    }

    .approach__step-content {
        padding-left: 0;
    }
    
    .approach__step-number {
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
}

/*
========================================
Секция Кейсы
========================================
*/
.cases {
    padding: 4rem 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.cases__tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.cases__tab-btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    background-color: transparent;
    transition: all var(--transition-duration) ease;
}

.cases__tab-btn:hover {
    background-color: #EAF2F8;
    border-color: #D4E6F1;
}

.cases__tab-btn--active {
    background-color: var(--color-primary);
    color: var(--color-surface);
    border-color: var(--color-primary);
}

.cases__tab-btn--active:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}


.case-panel {
    display: none; /* Скрываем все панели по умолчанию */
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

.case-panel--active {
    display: grid; /* Показываем только активную */
}

.case-panel__visual img {
    border-radius: 8px;
    width: 100%;
}

.case-panel__category {
    display: inline-block;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-panel__title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.case-panel__metrics {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.case-panel__metric-value {
    display: block;
    font-family: var(--font-headings);
    font-size: 2.5rem;
    color: var(--color-primary);
    line-height: 1.2;
}

.case-panel__metric-label {
    font-size: 0.9rem;
    color: #5D6D7E;
}

/* Адаптивность для секции Кейсы */
@media (min-width: 768px) {
    .cases {
        padding: 6rem 0;
    }
    .case-panel {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}
/*
========================================
Секция О нас
========================================
*/
.about {
    padding: 4rem 0;
    background-color: var(--color-background);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.about__visual img {
    border-radius: 8px;
    width: 100%;
}

.about__title {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
}

.about__description {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    color: #5D6D7E;
}

.about__stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.about__stat-item {
    text-align: left;
}

.about__stat-value {
    display: block;
    font-family: var(--font-headings);
    font-size: 2.5rem;
    color: var(--color-accent);
    line-height: 1.1;
}

.about__stat-label {
    font-size: 0.9rem;
    color: var(--color-text);
}

.about__quote {
    border-left: 3px solid var(--color-accent);
    padding-left: 1.5rem;
    font-style: italic;
}

.about__quote-text {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.about__quote-author {
    font-style: normal;
    font-weight: 500;
    color: var(--color-primary);
}


/* Адаптивность для секции О нас */
@media (min-width: 768px) {
    .about {
        padding: 6rem 0;
    }
    .about__grid {
        grid-template-columns: 2fr 3fr;
        gap: 4rem;
    }
    .about__title {
        font-size: 2.5rem;
    }
}

/*
========================================
Секция Контакты
========================================
*/
.contact {
    padding: 4rem 0;
    background-color: var(--color-surface);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.contact__info-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.contact__info-text {
    margin-bottom: 2rem;
}

.contact__info-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact__info-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 5px;
    font-size: 1rem;
    font-family: var(--font-main);
    transition: border-color var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.1);
}

.form-input.is-invalid {
    border-color: #E74C3C;
}

.form-group--checkbox {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
}

.form-group--checkbox input[type="checkbox"] {
    width: 1.2em;
    height: 1.2em;
    flex-shrink: 0;
}

.contact-form__button {
    background-color: var(--color-primary);
    color: var(--color-surface);
    border: none;
    align-self: flex-start;
}

.contact-form__button:hover {
    background-color: #21618C;
    color: var(--color-surface);
}
.contact-form__button:disabled {
    background-color: #a9a9a9;
    cursor: not-allowed;
}

.form-message {
    padding: 1rem;
    border-radius: 5px;
    margin-top: 1.5rem;
    display: none; /* Скрыт по умолчанию */
}

.form-message--success {
    background-color: #D4EFDF;
    color: #145A32;
    display: block;
}

.form-message--error {
    background-color: #FADBD8;
    color: #922B21;
    display: block;
}

/* Адаптивность для секции Контакты */
@media (min-width: 992px) {
    .contact {
        padding: 6rem 0;
    }
    .contact__grid {
        grid-template-columns: 1fr 1.5fr;
        gap: 4rem;
    }
}

/*
========================================
Cookie Pop-up
========================================
*/
.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    color: var(--color-text);
    padding: 1rem 1.5rem;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.07);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    transform: translateY(200%); /* Изначально скрыт */
    transition: transform 0.5s ease-in-out;
    z-index: 200;
}

.cookie-popup.is-visible {
    transform: translateY(0);
}

.cookie-popup__text {
    font-size: 0.9rem;
    line-height: 1.5;
}

.cookie-popup__text a {
    font-weight: 500;
    text-decoration: underline;
}

.cookie-popup__button {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    background-color: var(--color-primary);
    color: var(--color-surface);
}

@media (min-width: 768px) {
    .cookie-popup {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    .cookie-popup__text {
        margin: 0;
    }
}


/*
========================================
Стили для страниц с политиками (.pages)
========================================
*/
.pages {
    padding: 3rem 0;
}

.pages .container {
    max-width: 800px; /* Уменьшаем ширину контейнера для лучшей читабельности */
}

.pages h1, .pages h2 {
    font-family: var(--font-headings);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.pages h1 {
    font-size: 2.5rem;
    margin-top: 1rem;
}

.pages h2 {
    font-size: 1.75rem;
    margin-top: 2rem;
}

.pages p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.pages a {
    color: var(--color-primary);
    text-decoration: underline;
    font-weight: 500;
}

.pages a:hover {
    color: var(--color-accent);
}

.pages ul, .pages ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.pages li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.pages strong {
    font-weight: 700;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .pages {
        padding: 5rem 0;
    }
}