/* Глобальные стили и переменные */
:root {
    --color-background: #F8F9FA;
    --color-text: #212529;
    --color-primary: #007BFF;
    --color-primary-hover: #0056b3;
    --color-secondary: #6C757D;
    --color-white: #FFFFFF;
    --color-border: #E9ECEF;
    --color-footer-bg: #212529;
    --color-footer-text: #CED4DA;

    --font-main: 'Manrope', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --container-width: 1200px;
    --container-padding: 15px;
    --border-radius: 8px;
    --transition-speed: 0.3s ease;
}

/* 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);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 700;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

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

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

/* Стили хедера */
.header {
    background-color: var(--color-white);
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-weight: 800;
    font-size: 24px;
    color: var(--color-text);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav__link {
    font-weight: 500;
    color: var(--color-secondary);
    position: relative;
    padding: 5px 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-speed);
}

.nav__link:hover,
.nav__link:focus {
    color: var(--color-text);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link--button {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed);
}

.nav__link--button:hover,
.nav__link--button:focus {
    background-color: var(--color-primary-hover);
    color: var(--color-white);
}

.nav__link--button::after {
    display: none;
}

.burger {
    display: none; /* Будет виден только на мобильных */
    background: none;
    border: none;
    cursor: pointer;
}

/* Стили футера */
.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 60px 0 0;
}

.footer__container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer__logo {
    color: var(--color-white);
    margin-bottom: 15px;
    display: inline-block;
}

.footer__description {
    font-size: 14px;
    line-height: 1.7;
    max-width: 300px;
}

.footer__title {
    color: var(--color-white);
    margin-bottom: 20px;
    font-weight: 700;
    font-size: 18px;
}

.footer__list li:not(:last-child) {
    margin-bottom: 12px;
}

.footer__link {
    font-size: 15px;
    color: var(--color-footer-text);
}

.footer__link:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.footer__list--contact li {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.footer__text {
    font-size: 15px;
}

.footer__bottom {
    border-top: 1px solid #343a40;
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: var(--color-secondary);
}

/* Адаптивность (заготовка) */
@media (max-width: 992px) {
    .footer__container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none; /* Скрываем навигацию для мобильной версии */
    }

    .burger {
        display: block; /* Показываем бургер */
    }

    .footer__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer__column {
        align-items: center;
    }
    .footer__description {
        margin: 0 auto;
    }
    .footer__list--contact li {
        justify-content: center;
    }
}

/*--------------------
  Hero Section Styles
--------------------*/
.hero {
    padding: 80px 0;
    min-height: calc(100vh - 85px); /* Высота экрана минус высота хедера */
    display: flex;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: radial-gradient(circle, rgba(0, 123, 255, 0.05), transparent 30%);
    animation: rotateBackground 60s linear infinite;
}

@keyframes rotateBackground {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 2;
}

.hero__content {
    max-width: 550px;
}

.hero__title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero__subtitle {
    font-size: 18px;
    color: var(--color-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

/* Общие стили для кнопок */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 2px solid transparent;
}

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

.button--primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 123, 255, 0.2);
}

.button__icon {
    width: 20px;
    height: 20px;
}

/* Анимация в правой части */
.hero__visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px; /* Для 3D эффекта */
}

.hero__card-container {
    width: 350px;
    height: 220px;
    position: relative;
}

.hero__card {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    opacity: 0;
    transform: rotateY(-30deg) scale(0.9);
    transition: opacity 0.8s ease, transform 0.8s ease;
    z-index: 2;
}

.hero__card.is-active {
    opacity: 1;
    transform: rotateY(0) scale(1);
    z-index: 3;
}

.hero__card-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
    padding: 8px;
    border-radius: 50%;
    background-color: rgba(0, 123, 255, 0.1);
}

.hero__card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
}

.hero__card-text {
    font-size: 15px;
    color: var(--color-secondary);
    line-height: 1.5;
}

.hero__glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-primary) 0%, rgba(0,123,255,0) 60%);
    opacity: 0.15;
    z-index: 1;
    filter: blur(50px);
}

/* Адаптивность для Hero-секции */
@media (max-width: 992px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero__content {
        max-width: 100%;
    }
    .hero__title {
        font-size: 42px;
    }
    .hero__visual {
        margin-top: 40px;
        min-height: 250px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 60px 0;
    }
    .hero__title {
        font-size: 36px;
    }
    .hero__subtitle {
        font-size: 16px;
    }
    .hero__card-container {
        width: 300px;
        height: 190px;
    }
}

/*-----------------------
  Section General Styles
-----------------------*/
.section {
    padding: 100px 0;
    background-color: var(--color-background);
}

/* Сделаем фон каждой второй секции немного другим для визуального разделения */
.section:nth-of-type(odd) {
    background-color: var(--color-white);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section__tagline {
    display: inline-block;
    padding: 6px 15px;
    background-color: rgba(0, 123, 255, 0.1);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 14px;
    border-radius: 20px;
    margin-bottom: 15px;
    font-family: var(--font-mono);
}

.section__title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
}

.section__description {
    font-size: 18px;
    color: var(--color-secondary);
}

/*-----------------------
  Everyday Section Styles
-----------------------*/
.everyday__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.07);
}

.feature-card__icon-wrapper {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    border-radius: 50%;
    background-color: var(--color-background);
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.feature-card__title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-card__text {
    font-size: 16px;
    color: var(--color-secondary);
    line-height: 1.7;
}

/* Адаптивность для Everyday Section */
@media (max-width: 992px) {
    .section {
        padding: 80px 0;
    }
    .section__title {
        font-size: 36px;
    }
    .everyday__grid {
        grid-template-columns: 1fr; /* На планшетах тоже 1 колонка для лучшей читаемости */
        max-width: 450px;
        margin: 0 auto;
    }
}

@media (max-width: 576px) {
    .section__title {
        font-size: 32px;
    }
    .section__description {
        font-size: 16px;
    }
}

/*-----------------------
  Creative Section Styles
-----------------------*/
.creative__container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
    gap: 60px;
}

.creative__visual {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.creative__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.creative__visual:hover img {
    transform: scale(1.05);
}

.creative__tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background-color: var(--color-background);
    padding: 8px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.creative__tab {
    flex: 1;
    padding: 12px 15px;
    border-radius: 6px;
    background-color: transparent;
    border: none;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--color-secondary);
    transition: all var(--transition-speed);
}

.creative__tab:hover {
    background-color: var(--color-white);
    color: var(--color-text);
}

.creative__tab.is-active {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.creative__tab-icon {
    width: 20px;
    height: 20px;
}

.creative__pane {
    display: none; /* Скрываем все панели по умолчанию */
    animation: fadeIn 0.6s ease;
}

.creative__pane.is-active {
    display: block; /* Показываем активную */
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.creative__pane-title {
    font-size: 28px;
    margin-bottom: 15px;
}

.creative__pane-text {
    font-size: 17px;
    color: var(--color-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
}

.creative__pane-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.creative__pane-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.list-icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* Адаптивность для Creative Section */
@media (max-width: 992px) {
    .creative__container {
        grid-template-columns: 1fr;
    }
    .creative__visual {
       margin-bottom: 40px;
    }
}

/*--------------------
  Work Section Styles
--------------------*/
.work__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.work__visual {
    border-radius: var(--border-radius);
    overflow: hidden;
}

/* Accordion Styles */
.accordion__item {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}
.accordion__item:first-child {
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}
.accordion__item:last-child {
    border-bottom: none;
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
}

.accordion__header {
    width: 100%;
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.accordion__title {
    font-size: 20px;
    font-weight: 700;
}

.accordion__icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    transition: transform var(--transition-speed);
    flex-shrink: 0;
}

.accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.accordion__text {
    padding: 0 30px 0px;
    font-size: 16px;
    color: var(--color-secondary);
    line-height: 1.7;
}

/* Active state for accordion */
.accordion__item.is-active .accordion__icon {
    transform: rotate(180deg);
}

.accordion__item.is-active .accordion__content {
    max-height: 200px; /* Достаточно для текста */
    transition: max-height 0.5s ease-in;
}

.accordion__item.is-active .accordion__text {
    padding-bottom: 25px;
}

/* Адаптивность для Work Section */
@media (max-width: 992px) {
    .work__container {
        grid-template-columns: 1fr;
    }
    .work__visual {
        order: -1; /* Ставим картинку сверху на мобильных */
        margin-bottom: 40px;
    }
}


/*----------------------
  Learning Section Styles
----------------------*/
.learning__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    position: relative;
    margin-bottom: 80px;
}

/* Линия-соединитель */
.learning__steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: repeating-linear-gradient(
        90deg, 
        var(--color-primary), 
        var(--color-primary) 6px, 
        transparent 6px, 
        transparent 12px
    );
    opacity: 0.3;
}

.step-item {
    position: relative;
    padding-top: 50px; /* Место для кружка */
}

/* Кружок на линии */
.step-item::before {
    content: '';
    position: absolute;
    top: 41px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 4px solid var(--color-primary);
    z-index: 2;
}

.step-item__content {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.step-item__number {
    position: absolute;
    top: -20px;
    right: 10px;
    font-size: 80px;
    font-weight: 800;
    color: var(--color-background);
    z-index: 1;
    line-height: 1;
}

.step-item__title {
    font-size: 22px;
    margin-bottom: 15px;
    position: relative;
    z-index: 2;
}

.step-item__text {
    color: var(--color-secondary);
    position: relative;
    z-index: 2;
}

.learning__cta {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.learning__cta-title {
    font-size: 28px;
    margin-bottom: 25px;
}

/* Адаптивность для Learning Section */
@media (max-width: 992px) {
    .learning__steps {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto 60px;
    }
    .learning__steps::before, .step-item::before {
        display: none; /* Убираем линию на мобильных */
    }
    .step-item {
        padding-top: 0;
    }
}

@media (max-width: 576px) {
    .learning__cta-title {
        font-size: 22px;
    }
}

/*----------------------
  Contact Section Styles
----------------------*/
.contact__wrapper {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: 25px;
}

.form-group__label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-group__input {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: var(--font-main);
    transition: all var(--transition-speed);
}

.form-group__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

/* Captcha */
#captcha-question {
    font-weight: 700;
    font-family: var(--font-mono);
}

/* Checkbox */
.form-group--checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
}
.form-group--checkbox input {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}
.form-group--checkbox a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Validation */
.form-group__input.invalid {
    border-color: #dc3545;
}

.contact__button {
    width: 100%;
    padding: 18px;
    font-size: 18px;
}

/* Success Message */
.success-message {
    display: none; /* Hidden by default */
    text-align: center;
    padding: 40px;
    animation: fadeIn 0.5s;
}

.success-message.is-visible {
    display: block;
}

.success-message__icon {
    width: 60px;
    height: 60px;
    color: #28a745;
    margin-bottom: 20px;
}
.success-message__title {
    font-size: 28px;
    margin-bottom: 10px;
}

/*----------------------
  Cookie Popup Styles
----------------------*/
.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-footer-bg);
    color: var(--color-white);
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    box-shadow: 0 -5px 15px rgba(0,0,0,0.1);
    transform: translateY(120%);
    transition: transform 0.5s ease-in-out;
}
.cookie-popup.is-visible {
    transform: translateY(0);
}
.cookie-popup__text a {
    color: var(--color-white);
    text-decoration: underline;
}
.button--small {
    padding: 8px 18px;
    font-size: 14px;
}

/*----------------------
  Policy Pages Styles
----------------------*/
.pages {
    padding: 60px 0;
    background-color: var(--color-white);
}

.pages .container {
    max-width: 800px;
}

.pages h1 {
    font-size: 42px;
    margin-bottom: 30px;
}

.pages h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 20px;
}

.pages p, .pages ul {
    font-size: 17px;
    color: var(--color-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.pages ul {
    padding-left: 25px;
    list-style: disc;
}

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

/* Адаптивность */
@media (max-width: 576px) {
    .contact__wrapper { padding: 25px; }
    .cookie-popup { flex-direction: column; text-align: center; }
}