/* GLOBAL STYLES */
:root {
    --bg-color: #0D1B2A;
    --primary-text-color: #E0E1DD;
    --accent-color: #41EAD4;
    --secondary-bg-color: #1B263B;
    --secondary-text-color: #778DA9;
    --font-main: 'Manrope', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-text-color);
}

ul {
    list-style: none;
}

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

h1, h2, h3 {
    line-height: 1.2;
    font-weight: 800;
}

/* HEADER */
.header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    background-color: rgba(13, 27, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(119, 141, 169, 0.2);
}

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

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

.header__nav-list {
    display: flex;
    gap: 30px;
}

.header__nav-link {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-text-color);
    position: relative;
    padding: 5px 0;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

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

.header__burger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-text-color);
    cursor: pointer;
}

/* FOOTER */
.footer {
    padding: 60px 0;
    background-color: var(--secondary-bg-color);
    border-top: 1px solid rgba(119, 141, 169, 0.2);
}

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

.footer__logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-text-color);
    margin-bottom: 15px;
    display: inline-block;
}

.footer__copyright {
    color: var(--secondary-text-color);
    font-size: 14px;
}

.footer__title {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-text-color);
}

.footer__nav-list,
.footer__legal-list,
.footer__contact-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer__nav-link,
.footer__legal-link,
.footer__contact-link {
    color: var(--secondary-text-color);
    font-size: 15px;
}

.footer__nav-link:hover,
.footer__legal-link:hover,
.footer__contact-link:hover {
    color: var(--accent-color);
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--secondary-text-color);
    font-size: 15px;
}

.footer__contact-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--accent-color);
}

/* ADAPTIVE STYLES (Mobile-first approach) */
@media (max-width: 992px) {
    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header__nav {
        display: none; /* Will be implemented later */
    }

    .header__burger-btn {
        display: block;
    }
    
    .footer__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__column--logo {
        align-items: center;
    }

    .footer__contact-item {
        justify-content: center;
    }
}

/* SHARED COMPONENTS */
.button {
    display: inline-block;
    padding: 12px 28px;
    background-color: var(--accent-color);
    color: var(--bg-color);
    font-weight: 800;
    font-size: 16px;
    border-radius: 8px;
    text-align: center;
    border: 2px solid var(--accent-color);
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

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

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px; /* Header offset */
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.hero__title {
    font-size: 56px;
    margin-bottom: 20px;
    font-weight: 800;
}

/* For JS animation */
.hero__title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px) scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image {
    max-width: 500px;
    width: 100%;
    animation: float-animation 6s ease-in-out infinite;
}

@keyframes float-animation {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}


/* ADAPTIVE STYLES for Hero */
@media (max-width: 992px) {
    .hero__title {
        font-size: 44px;
    }
    .hero__image {
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
        text-align: center;
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .hero__content {
        order: 2;
    }
    
    .hero__visual {
        order: 1;
    }

    .hero__title {
        font-size: 36px;
    }

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

    .hero__image {
        max-width: 300px;
    }
}

/* SHARED SECTION HEADER */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header__title {
    font-size: 42px;
    margin-bottom: 15px;
}

.section-header__subtitle {
    font-size: 18px;
    color: var(--secondary-text-color);
}

/* IDEAS SECTION */
.ideas {
    padding: 100px 0;
    background-color: var(--secondary-bg-color);
}

.ideas__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.ideas__card {
    background-color: var(--bg-color);
    padding: 35px;
    border-radius: 12px;
    border: 1px solid rgba(119, 141, 169, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ideas__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.ideas__card-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 25px;
    color: var(--accent-color);
}

.ideas__card-icon svg {
    width: 100%;
    height: 100%;
}

.ideas__card-title {
    font-size: 22px;
    margin-bottom: 10px;
}

.ideas__card-text {
    color: var(--secondary-text-color);
}

/* ADAPTIVE STYLES for Section Header & Ideas */
@media (max-width: 768px) {
    .section-header__title {
        font-size: 32px;
    }

    .section-header__subtitle {
        font-size: 16px;
    }

    .ideas {
        padding: 80px 0;
    }
}

/* TECH SECTION */
.tech {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.tech__container {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 50px;
    min-height: 450px;
}

.tech__tabs-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-right: 1px solid rgba(119, 141, 169, 0.2);
}

.tech__tab-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-main);
    color: var(--secondary-text-color);
    background: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    border-right: 3px solid transparent;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.tech__tab-btn svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.tech__tab-btn:hover {
    background-color: var(--secondary-bg-color);
    color: var(--primary-text-color);
}

.tech__tab-btn--active {
    color: var(--accent-color);
    background-color: var(--secondary-bg-color);
    border-right-color: var(--accent-color);
}

.tech__content-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tech__content-pane--active {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.tech__content-text h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.tech__content-text p {
    color: var(--secondary-text-color);
    font-size: 17px;
}

.tech__content-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech__content-visual img {
    max-width: 350px;
    width: 100%;
    border-radius: 12px;
}

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

/* ADAPTIVE STYLES for Tech */
@media (max-width: 992px) {
    .tech__container {
        grid-template-columns: 1fr;
    }
    .tech__tabs-nav {
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid rgba(119, 141, 169, 0.2);
        overflow-x: auto;
        padding-bottom: 10px;
    }
    .tech__tab-btn {
        border-right: none;
        border-bottom: 3px solid transparent;
    }
    .tech__tab-btn--active {
        border-right-color: transparent;
        border-bottom-color: var(--accent-color);
    }
}

@media (max-width: 768px) {
    .tech {
        padding: 80px 0;
    }
    .tech__content-pane--active {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .tech__content-visual {
        order: -1;
        margin-bottom: 30px;
    }
}

/* CASES SECTION */
.cases {
    padding: 100px 0;
    background-color: var(--secondary-bg-color);
    position: relative;
}

.cases__slider {
    padding: 20px 0 60px 0; /* Extra padding for shadow and pagination */
}

.cases__card {
    background-color: var(--bg-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid rgba(119, 141, 169, 0.1);
}

.cases__card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.cases__card-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.cases__card-tag {
    display: inline-block;
    background-color: var(--secondary-bg-color);
    color: var(--accent-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 15px;
    align-self: flex-start;
}

.cases__card-title {
    font-size: 20px;
    margin-bottom: 10px;
}

.cases__card-text {
    color: var(--secondary-text-color);
    font-size: 15px;
    flex-grow: 1;
}

/* Swiper Customization */
.swiper-pagination-bullet {
    background-color: var(--secondary-text-color);
    width: 10px;
    height: 10px;
    opacity: 0.7;
}

.swiper-pagination-bullet-active {
    background-color: var(--accent-color);
    opacity: 1;
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--accent-color);
    background-color: rgba(13, 27, 42, 0.7);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    backdrop-filter: blur(5px);
    transition: opacity 0.3s ease;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 20px;
    font-weight: bold;
}

.swiper-button-disabled {
    opacity: 0;
    pointer-events: none;
}

@media (max-width: 768px) {
    .cases {
        padding: 80px 0;
    }
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }
}

/* TRENDS SECTION */
.trends {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.trends__accordion {
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid rgba(119, 141, 169, 0.2);
    border-radius: 12px;
    overflow: hidden;
}

.accordion__item {
    border-bottom: 1px solid rgba(119, 141, 169, 0.2);
}

.accordion__item:last-child {
    border-bottom: none;
}

.accordion__header {
    width: 100%;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-text-color);
    transition: background-color 0.3s ease;
}

.accordion__header:hover {
    background-color: var(--secondary-bg-color);
}

.accordion__icon {
    transition: transform 0.4s ease;
    flex-shrink: 0;
    margin-left: 20px;
}

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

.accordion__body {
    padding: 0 25px 0 25px;
    color: var(--secondary-text-color);
    line-height: 1.7;
}

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

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

.accordion__item.accordion__item--active .accordion__content {
    /* max-height is set by JS */
    padding-bottom: 20px;
}

/* CONTACT SECTION */
.contact {
    padding: 100px 0;
    background-color: var(--secondary-bg-color);
}

.contact__wrapper {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-color);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(119, 141, 169, 0.1);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__label {
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-text-color);
}

.form__input {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--secondary-bg-color);
    border: 1px solid rgba(119, 141, 169, 0.2);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 16px;
    color: var(--primary-text-color);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form__input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(65, 234, 212, 0.2);
}

.form__input--captcha {
    max-width: 100px;
}

.form__group--checkbox {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.form__checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.form__checkbox-label a {
    text-decoration: underline;
}

.form__submit {
    margin-top: 10px;
    width: 100%;
}

.contact__success-message {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.contact__success-message h3 {
    font-size: 28px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

@media (max-width: 768px) {
    .contact {
        padding: 80px 0;
    }
    .contact__wrapper {
        padding: 30px;
    }
}

/* COOKIE POPUP */
.cookie-popup {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(200%);
    width: calc(100% - 40px);
    max-width: 800px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    background-color: var(--secondary-bg-color);
    padding: 20px 25px;
    border-radius: 12px;
    border: 1px solid rgba(119, 141, 169, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 200;
    transition: transform 0.5s ease-in-out;
}

.cookie-popup--show {
    transform: translateX(-50%) translateY(0);
}

.cookie-popup__text {
    color: var(--secondary-text-color);
    font-size: 15px;
}

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

.cookie-popup__btn {
    padding: 8px 20px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .cookie-popup {
        flex-direction: column;
        text-align: center;
    }
}

/* STYLES FOR STATIC PAGES (PRIVACY, TERMS, etc.) */
.pages {
    padding: 120px 0 80px 0;
}

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

.pages h1 {
    font-size: 42px;
    margin-bottom: 25px;
    font-weight: 800;
    color: var(--accent-color);
}

.pages h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 20px;
    font-weight: 800;
}

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

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

.pages a {
    text-decoration: underline;
    font-weight: 600;
}

.pages a:hover {
    text-decoration: none;
}

.pages strong {
    color: var(--primary-text-color);
}

@media (max-width: 768px) {
    .pages {
        padding-top: 100px;
    }
    .pages h1 {
        font-size: 32px;
    }
    .pages h2 {
        font-size: 24px;
    }
}