/* ==================== GOOGLE FONTS ==================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Poppins:wght@600;700&display=swap');

/* ==================== CSS VARIABLES ==================== */
:root {
    --header-height: 5rem;

    /* Colors */
    --primary-color: #9F70FD;
    --secondary-color: #57C4E5;
    --bg-color: #0D0C1D;
    --surface-color: #1A1A2E;
    --border-color: #3D3D5A;
    --text-color: #E0E0E0;
    --text-color-light: #A0A0B4;

    /* Fonts and typography */
    --body-font: 'Inter', sans-serif;
    --heading-font: 'Poppins', sans-serif;
    
    --h1-font-size: 2.5rem;
    --h2-font-size: 1.75rem;
    --h3-font-size: 1.25rem;
    --normal-font-size: 1rem;
    --small-font-size: 0.875rem;

    /* Font weight */
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Margins & Paddings */
    --mb-0-5: 0.5rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;

    /* Z-index */
    --z-tooltip: 10;
    --z-fixed: 100;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: var(--heading-font);
    font-weight: var(--font-bold);
    color: var(--text-color);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* ==================== REUSABLE CSS CLASSES ==================== */
.container {
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

/* ==================== HEADER ==================== */
.header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(13, 12, 29, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
}

.header__container {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-family: var(--heading-font);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

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

.header__nav-link {
    font-weight: var(--font-medium);
    transition: color 0.3s ease;
}

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

.header__menu-toggle {
    display: none; /* For mobile */
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
}

/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--surface-color);
    padding-top: 4rem;
    border-top: 1px solid var(--border-color);
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding-bottom: 3rem;
}

.footer__logo {
    font-family: var(--heading-font);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--primary-color);
    display: inline-block;
    margin-bottom: var(--mb-1);
}

.footer__description {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
    max-width: 250px;
}

.footer__column-title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-1-5);
    font-weight: var(--font-semibold);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__link {
    color: var(--text-color-light);
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer__link:hover {
    color: var(--secondary-color);
    padding-left: 0.25rem;
}

.footer__list--contact {
    gap: 1rem;
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color-light);
}

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

.footer__bottom {
    padding: 1.5rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer__copyright {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

/* ==================== MEDIA QUERIES ==================== */
@media screen and (max-width: 768px) {
    .header__nav {
       display: none; /* Will be handled by JS for a mobile menu */
    }
    .header__menu-toggle {
        display: block;
    }
}

/* style.css */

/* ==================== BUTTONS ==================== */
.button {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-family: var(--heading-font);
    font-weight: var(--font-semibold);
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
}

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

.button--primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* ==================== HERO SECTION ==================== */
.hero {
    padding-top: var(--header-height);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero__title {
    font-size: 3.5rem; /* Увеличенный размер для главного заголовка */
    line-height: 1.2;
    margin-bottom: var(--mb-1-5);
    color: #fff; /* Чистый белый для контраста */
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--text-color-light);
    margin-bottom: var(--mb-2);
    max-width: 500px;
}

.hero__animation {
    width: 100%;
    height: 100%;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#hero-canvas {
    width: 100%;
    height: 100%;
    max-width: 500px;
    max-height: 500px;
}

/* ==================== MEDIA QUERIES (for Hero) ==================== */
@media screen and (max-width: 992px) {
    .hero__title {
        font-size: 2.75rem;
    }
}

@media screen and (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + 2rem) 0 4rem;
        text-align: center;
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero__subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__animation {
        order: -1; /* Ставим анимацию над текстом на мобильных */
        min-height: 300px;
    }
}

/* style.css */

/* ==================== REUSABLE SECTION STYLES ==================== */
.section {
    padding: 6rem 0 2rem;
}

.section__header {
    text-align: center;
    margin-bottom: 3rem;
}

.section__title {
    font-size: var(--h2-font-size);
    color: var(--primary-color);
    margin-bottom: var(--mb-0-5);
}

.section__subtitle {
    font-size: var(--normal-font-size);
    color: var(--text-color-light);
}

/* ==================== PROCESS SECTION ==================== */
.process__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.process__card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.process__card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
}

.process__card-icon {
    margin-bottom: var(--mb-1-5);
}

.process__card-icon i {
    width: 48px;
    height: 48px;
    color: var(--secondary-color);
}

.process__card-title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-0-5);
}

.process__card-description {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
    line-height: 1.5;
}

/* ==================== MEDIA QUERIES (for Section) ==================== */
@media screen and (max-width: 768px) {
    .section {
        padding: 4rem 0 1rem;
    }
    .section__title {
        font-size: 1.5rem;
    }
}

/* style.css */

/* ==================== TOPICS SECTION ==================== */
.topics__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.topics__card {
    background-color: var(--surface-color);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.topics__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.topics__card-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
}

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

.topics__card:hover .topics__card-image {
    transform: scale(1.1);
}

.topics__card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(159, 112, 253, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.topics__card:hover .topics__card-overlay {
    opacity: 1;
}

.topics__card-overlay i {
    width: 48px;
    height: 48px;
    color: #fff;
}

.topics__card-content {
    padding: 1.5rem;
}

.topics__card-category {
    display: inline-block;
    font-size: var(--small-font-size);
    color: var(--secondary-color);
    font-weight: var(--font-medium);
    margin-bottom: var(--mb-0-5);
}

.topics__card-title {
    font-size: 1.3rem;
    font-weight: var(--font-semibold);
}

/* style.css */

/* ==================== FORMATS SECTION ==================== */
.formats__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}

.formats__visual {
    width: 100%;
    height: 500px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: pulse-border 5s ease-in-out infinite;
}

.formats__visual-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.formats__title {
    font-size: var(--h2-font-size);
    margin-bottom: var(--mb-1);
    color: #fff;
}

.formats__subtitle {
    color: var(--text-color-light);
    margin-bottom: var(--mb-2);
}

.formats__list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.formats__item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.formats__item-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    color: var(--secondary-color);
    margin-top: 5px;
}

.formats__item-title {
    font-size: 1.1rem;
    font-weight: var(--font-semibold);
    margin-bottom: 0.25rem;
}

.formats__item-description {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

/* Animation for visual block */
@keyframes pulse-border {
    0% { border-color: var(--border-color); }
    50% { border-color: var(--primary-color); }
    100% { border-color: var(--border-color); }
}

/* ==================== MEDIA QUERIES (for Formats) ==================== */
@media screen and (max-width: 992px) {
    .formats__container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .formats__visual {
        height: 350px;
        order: -1; /* Visual block on top on mobile */
    }
}

/* style.css */

/* ==================== AUDIENCE (ACCORDION) ==================== */
.accordion {
    max-width: 750px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
}

.accordion__item {
    border-bottom: 1px solid var(--border-color);
}

.accordion__header {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-color);
    padding: 1.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    font-size: 1.1rem;
    font-family: var(--heading-font);
    font-weight: var(--font-semibold);
    transition: color 0.3s ease;
}

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

.accordion__icon {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.accordion__description {
    padding: 0 1rem 1.5rem;
    font-size: var(--normal-font-size);
    color: var(--text-color-light);
    line-height: 1.7;
}

/* Active state for accordion */
.accordion__item.active .accordion__header {
    color: var(--secondary-color);
}

.accordion__item.active .accordion__icon {
    transform: rotate(180deg);
}

/* style.css */

/* ==================== CONTACT SECTION ==================== */
.contact__container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--surface-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.contact__group {
    margin-bottom: 1.5rem;
}

.contact__label {
    display: block;
    font-weight: var(--font-medium);
    margin-bottom: var(--mb-0-5);
    color: var(--text-color-light);
}

.contact__input {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    transition: border-color 0.3s ease;
}

.contact__input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Remove arrows from number input */
.contact__input[type=number]::-webkit-inner-spin-button, 
.contact__input[type=number]::-webkit-outer-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
}
.contact__input[type=number] {
  -moz-appearance: textfield;
}

.contact__group--checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.contact__checkbox {
    margin-top: 5px;
    flex-shrink: 0;
}

.contact__checkbox-label {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

.contact__checkbox-label a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.contact__button {
    width: 100%;
}

/* Form Message Styles */
#form-message {
    font-size: var(--small-font-size);
    margin-top: 1.5rem;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    display: none; /* Hidden by default */
}

#form-message.success {
    display: block;
    background-color: rgba(87, 196, 229, 0.1);
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
}

#form-message.error {
    display: block;
    background-color: rgba(255, 100, 100, 0.1);
    border: 1px solid rgb(255, 100, 100);
    color: rgb(255, 100, 100);
}

/* style.css */

/* ==================== COOKIE POP-UP ==================== */
.cookie-popup {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    max-width: 1140px;
    margin: 0 auto;
    background-color: var(--surface-color);
    padding: 1.5rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    z-index: var(--z-fixed);
    transform: translateY(200%);
    transition: transform 0.5s ease-in-out;
}

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

.cookie-popup__text {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

.cookie-popup__text a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.cookie-popup__button {
    padding: 0.75rem 1.5rem;
    flex-shrink: 0;
}

/* ==================== STATIC PAGES (privacy.html, terms.html, etc.) ==================== */
.pages {
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 6rem;
}

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

.pages h1 {
    font-size: var(--h1-font-size);
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.pages h2 {
    font-size: var(--h2-font-size);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.pages p {
    color: var(--text-color-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.pages ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 1rem;
}

.pages li {
    margin-bottom: 0.75rem;
    color: var(--text-color-light);
}

.pages strong {
    color: var(--text-color);
    font-weight: var(--font-semibold);
}

.pages a {
    color: var(--secondary-color);
    text-decoration: underline;
    transition: color 0.3s ease;
}

.pages a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* ==================== MEDIA QUERIES (for Cookie Pop-up) ==================== */
@media screen and (max-width: 768px) {
    .cookie-popup {
        flex-direction: column;
        text-align: center;
        bottom: 1rem;
        left: 1rem;
        right: 1rem;
    }
}