:root {
    --pure-black: #000000;
    --deep-black: #0a0a0a;
    --card-black: #0d0d0d;
    --input-black: #111111;
    --border-dark: #1a1a1a;
    --neon-green: #00ff88;
    --neon-pink: #ff0080;
    --neon-blue: #00d4ff;
    --text-white: #ffffff;
    --text-gray: #b3b3b3;
    --glow-green: 0 0 20px rgba(0, 255, 136, 0.6);
    --glow-pink: 0 0 20px rgba(255, 0, 128, 0.6);
    --glow-blue: 0 0 20px rgba(0, 212, 255, 0.6);
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--pure-black);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.iti {
    width: 100%;
}

.main-nav-header {
    background-color: var(--deep-black);
    border-bottom: 1px solid var(--border-dark);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo-img {
    height: 50px;
    width: auto;
}

.primary-navigation .nav-menu-list {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.primary-navigation .nav-menu-list a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.primary-navigation .nav-menu-list a:hover,
.primary-navigation .nav-menu-list a.nav-link-active {
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

.lang-switch-btn {
    background-color: var(--input-black);
    color: var(--neon-blue);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid var(--neon-blue);
    transition: all 0.3s ease;
}

.lang-switch-btn:hover {
    background-color: var(--neon-blue);
    color: var(--pure-black);
    box-shadow: var(--glow-blue);
}

.hero-expenses-section {
    background: linear-gradient(135deg, var(--pure-black) 0%, var(--deep-black) 100%);
    padding: 5rem 2rem;
    text-align: center;
}

.hero-content-container {
    max-width: 1200px;
    margin: 0 auto;
}

.hero-main-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--neon-green);
    text-shadow: var(--glow-green);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle-text {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-primary-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    color: var(--pure-black);
    padding: 1rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 255, 136, 0.4);
}

.cta-primary-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 255, 136, 0.6);
}

.hero-visual-graph {
    margin-top: 3rem;
}

.hero-graph-image {
    width: 100%;
    max-width: 900px;
    border-radius: 20px;
    border: 2px solid var(--border-dark);
}

.features-bullets-section {
    padding: 4rem 2rem;
    background-color: var(--deep-black);
}

.features-content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.feature-item-block {
    text-align: center;
    padding: 2rem;
    background-color: var(--card-black);
    border-radius: 15px;
    border: 1px solid var(--border-dark);
    transition: all 0.3s ease;
}

.feature-item-block:hover {
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
    transform: translateY(-5px);
}

.feature-icon-neon {
    font-size: 3rem;
    color: var(--neon-green);
    margin-bottom: 1.5rem;
    text-shadow: var(--glow-green);
}

.feature-item-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 1rem;
}

.feature-item-description {
    color: var(--text-gray);
    font-size: 1rem;
}

.price-tracking-interactive,
.key-changes-monthly,
.strategies-tips-section,
.budget-example-section,
.quiz-interactive-section,
.contact-form-section {
    padding: 5rem 2rem;
    background-color: var(--pure-black);
}

.tracking-content-container,
.changes-content-wrapper,
.strategies-content-container,
.budget-content-wrapper,
.quiz-content-container,
.form-content-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-main-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--neon-pink);
    text-shadow: var(--glow-pink);
    margin-bottom: 1.5rem;
    text-align: center;
}

.section-description-text {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

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

.filter-btn-isotope {
    background-color: var(--input-black);
    color: var(--text-white);
    border: 1px solid var(--border-dark);
    padding: 0.8rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.filter-btn-isotope:hover,
.filter-btn-isotope.active-filter {
    background-color: var(--neon-blue);
    color: var(--pure-black);
    border-color: var(--neon-blue);
    box-shadow: var(--glow-blue);
}

.isotope-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.isotope-item {
    background-color: var(--card-black);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border-dark);
    transition: all 0.3s ease;
}

.isotope-item:hover {
    border-color: var(--neon-pink);
    box-shadow: var(--glow-pink);
    transform: translateY(-5px);
}

.category-visual {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.category-label {
    padding: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-white);
}

.category-variation {
    padding: 0 1.5rem 1.5rem;
    color: var(--neon-green);
    font-size: 1.2rem;
    font-weight: 700;
}

.changes-list-neon {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
}

.change-item-highlight {
    background-color: var(--card-black);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    border-left: 4px solid var(--neon-green);
    transition: all 0.3s ease;
}

.change-item-highlight:hover {
    border-left-color: var(--neon-pink);
    box-shadow: var(--glow-pink);
}

.change-icon-marker {
    color: var(--neon-green);
    margin-right: 1rem;
    font-size: 1.2rem;
}

.accordion-tips-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item-tip {
    background-color: var(--card-black);
    border: 1px solid var(--border-dark);
    border-radius: 10px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-trigger-btn {
    width: 100%;
    background-color: transparent;
    border: none;
    color: var(--text-white);
    padding: 1.5rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.accordion-trigger-btn:hover {
    color: var(--neon-green);
}

.accordion-icon {
    transition: transform 0.3s ease;
}

.accordion-item-tip.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item-tip.active .accordion-content-panel {
    max-height: 500px;
}

.accordion-content-panel p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.budget-table-container {
    overflow-x: auto;
}

.budget-display-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    background-color: var(--card-black);
    border-radius: 10px;
    overflow: hidden;
}

.budget-display-table th,
.budget-display-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-dark);
}

.budget-display-table th {
    background-color: var(--input-black);
    color: var(--neon-blue);
    font-weight: 700;
}

.budget-display-table tr:hover {
    background-color: var(--input-black);
}

.quiz-questions-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.quiz-question-block {
    display: none;
    background-color: var(--card-black);
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid var(--border-dark);
}

.quiz-question-block.active-question {
    display: block;
}

.quiz-question-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 2rem;
    text-align: center;
}

.quiz-answers-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.quiz-answer-btn {
    background-color: var(--input-black);
    color: var(--text-white);
    border: 2px solid var(--neon-green);
    padding: 1rem 3rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.quiz-answer-btn:hover {
    background-color: var(--neon-green);
    color: var(--pure-black);
    box-shadow: var(--glow-green);
}

.quiz-result-block {
    display: none;
    background-color: var(--card-black);
    padding: 3rem;
    border-radius: 15px;
    border: 2px solid var(--neon-pink);
    text-align: center;
}

.quiz-result-block.active-result {
    display: block;
}

.quiz-result-title {
    font-size: 2rem;
    color: var(--neon-pink);
    margin-bottom: 1.5rem;
}

.quiz-result-text {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.quiz-cta-btn {
    display: inline-block;
    background-color: var(--neon-green);
    color: var(--pure-black);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.quiz-cta-btn:hover {
    box-shadow: var(--glow-green);
    transform: translateY(-3px);
}

.main-contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--card-black);
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid var(--border-dark);
}

.form-field-group {
    margin-bottom: 1.5rem;
}

.form-label-text {
    display: block;
    color: var(--text-white);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-input-field,
.form-textarea-field {
    width: 100%;
    background-color: var(--input-black);
    border: 1px solid var(--border-dark);
    color: var(--text-white);
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input-field:focus,
.form-textarea-field:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.form-checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.form-checkbox-input {
    margin-top: 0.3rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-checkbox-label {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

.privacy-link-inline {
    color: var(--neon-blue);
    text-decoration: underline;
}

.form-submit-button {
    width: 100%;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    color: var(--pure-black);
    border: none;
    padding: 1.2rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 255, 136, 0.6);
}

.main-site-footer {
    background-color: var(--deep-black);
    border-top: 1px solid var(--border-dark);
    padding: 3rem 2rem 1rem;
}

.footer-content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section-title {
    color: var(--neon-green);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-contact-info {
    color: var(--text-gray);
    margin-bottom: 0.8rem;
    line-height: 1.8;
}

.footer-contact-info i {
    color: var(--neon-blue);
    margin-right: 0.5rem;
}

.footer-links-list {
    list-style: none;
}

.footer-links-list li {
    margin-bottom: 0.8rem;
}

.footer-links-list a {
    color: var(--text-gray);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links-list a:hover {
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

.footer-compliance-text,
.footer-legal-text {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.footer-lang-switch {
    display: inline-block;
    background-color: var(--input-black);
    color: var(--neon-blue);
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid var(--neon-blue);
    transition: all 0.3s ease;
}

.footer-lang-switch:hover {
    background-color: var(--neon-blue);
    color: var(--pure-black);
    box-shadow: var(--glow-blue);
}

.footer-copyright-bar {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-dark);
    color: var(--text-gray);
    font-size: 0.9rem;
}

.thanks-message-section {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
}

.thanks-content-container {
    text-align: center;
    max-width: 700px;
}

.thanks-success-icon {
    font-size: 5rem;
    color: var(--neon-green);
    margin-bottom: 2rem;
    text-shadow: var(--glow-green);
}

.thanks-main-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--neon-pink);
    margin-bottom: 1.5rem;
}

.thanks-message-text,
.thanks-secondary-text {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.thanks-return-button {
    display: inline-block;
    background-color: var(--neon-green);
    color: var(--pure-black);
    padding: 1rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.thanks-return-button:hover {
    box-shadow: var(--glow-green);
    transform: translateY(-3px);
}

.about-hero-section,
.blog-hero-section,
.contacts-hero-section {
    background: linear-gradient(135deg, var(--pure-black) 0%, var(--deep-black) 100%);
    padding: 4rem 2rem;
    text-align: center;
}

.page-main-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--neon-green);
    text-shadow: var(--glow-green);
    margin-bottom: 1rem;
}

.page-subtitle-text {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-gray);
}

.mission-statement-section,
.methodology-approach-section {
    padding: 5rem 2rem;
    background-color: var(--pure-black);
}

.mission-content-wrapper,
.methodology-content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 3rem;
    align-items: center;
}

.mission-image,
.methodology-image {
    width: 100%;
    border-radius: 15px;
    border: 2px solid var(--border-dark);
}

.mission-description-text,
.methodology-description-text {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.blog-articles-section {
    padding: 4rem 2rem;
    background-color: var(--pure-black);
}

.articles-content-container {
    max-width: 1000px;
    margin: 0 auto;
}

.blog-article-item {
    background-color: var(--card-black);
    border: 1px solid var(--border-dark);
    border-radius: 15px;
    margin-bottom: 3rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.blog-article-item:hover {
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.article-header-block {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}

.article-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-meta-info {
    padding: 2rem;
}

.article-title-heading {
    font-size: 1.8rem;
    color: var(--text-white);
    margin-bottom: 1rem;
    font-weight: 700;
}

.article-preview-text {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-expand-btn {
    background-color: var(--input-black);
    color: var(--neon-blue);
    border: 1px solid var(--neon-blue);
    padding: 0.8rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-expand-btn:hover {
    background-color: var(--neon-blue);
    color: var(--pure-black);
    box-shadow: var(--glow-blue);
}

.article-full-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
    padding: 0 2rem;
}

.blog-article-item.expanded .article-full-content {
    max-height: 3000px;
    padding: 2rem;
}

.blog-article-item.expanded .article-expand-btn i {
    transform: rotate(180deg);
}

.article-full-content p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.contact-information-section {
    padding: 5rem 2rem;
    background-color: var(--pure-black);
}

.contact-info-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 4rem;
}

.contact-item-group {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--card-black);
    border-radius: 10px;
    border: 1px solid var(--border-dark);
}

.contact-icon-neon {
    font-size: 2rem;
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

.contact-item-label {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.5rem;
}

.contact-item-value {
    color: var(--text-gray);
    line-height: 1.6;
}

.map-container-iframe {
    border-radius: 15px;
    overflow: hidden;
    border: 2px solid var(--border-dark);
}

.legal-document-section {
    padding: 4rem 2rem;
    background-color: var(--pure-black);
}

.legal-content-container {
    max-width: 900px;
    margin: 0 auto;
}

.legal-main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--neon-pink);
    text-shadow: var(--glow-pink);
    margin-bottom: 1rem;
    text-align: center;
}

.legal-update-date {
    text-align: center;
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: 3rem;
}

.legal-section-block {
    margin-bottom: 3rem;
}

.legal-section-heading {
    font-size: 1.8rem;
    color: var(--neon-green);
    margin-bottom: 1rem;
    font-weight: 700;
}

.legal-subsection-title {
    font-size: 1.4rem;
    color: var(--neon-blue);
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.legal-text-paragraph {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-list-items {
    color: var(--text-gray);
    line-height: 1.8;
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-list-items li {
    margin-bottom: 0.5rem;
}

.legal-inline-link {
    color: var(--neon-blue);
    text-decoration: underline;
}

.legal-inline-link:hover {
    color: var(--neon-green);
}

.cookie-details-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background-color: var(--card-black);
    border-radius: 10px;
    overflow: hidden;
}

.cookie-details-table th,
.cookie-details-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-dark);
}

.cookie-details-table th {
    background-color: var(--input-black);
    color: var(--neon-blue);
    font-weight: 700;
}

.cookie-details-table td {
    color: var(--text-gray);
}

.cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--deep-black);
    border-top: 2px solid var(--neon-green);
    padding: 1.5rem 2rem;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0, 255, 136, 0.3);
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-banner-text {
    color: var(--text-gray);
    flex: 1;
}

.cookie-banner-actions {
    display: flex;
    gap: 1rem;
}

.cookie-accept-btn,
.cookie-reject-btn {
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.cookie-accept-btn {
    background-color: var(--neon-green);
    color: var(--pure-black);
}

.cookie-accept-btn:hover {
    box-shadow: var(--glow-green);
}

.cookie-reject-btn {
    background-color: var(--input-black);
    color: var(--text-white);
    border: 1px solid var(--border-dark);
}

.cookie-reject-btn:hover {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
}

@media (max-width: 768px) {
    .nav-content-wrapper {
        flex-direction: column;
        gap: 1rem;
    }

    .primary-navigation .nav-menu-list {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .article-header-block {
        grid-template-columns: 1fr;
    }

    .contact-info-wrapper,
    .mission-content-wrapper,
    .methodology-content-wrapper {
        grid-template-columns: 1fr;
    }

    .cookie-banner-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-banner-actions {
        flex-direction: column;
        width: 100%;
    }

    .cookie-accept-btn,
    .cookie-reject-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .features-content-wrapper,
    .isotope-grid-container {
        grid-template-columns: 1fr;
    }

    .quiz-answers-group {
        flex-direction: column;
    }

    .quiz-answer-btn {
        width: 100%;
    }
}