* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #2c3e50;
    background-color: #ffffff;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    color: #001f3f;
    margin: 0 0 1rem 0;
}

h1 { font-size: 52px; font-weight: 800; letter-spacing: -1px; }
h2 { font-size: 40px; font-weight: 700; letter-spacing: -0.5px; }
h3 { font-size: 28px; font-weight: 700; }
h4 { font-size: 20px; font-weight: 600; }
h5 { font-size: 18px; font-weight: 600; }
h6 { font-size: 16px; font-weight: 600; }

p {
    color: #546e7a;
    margin: 0 0 1rem 0;
}

a {
    color: #0074D9;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #001f3f;
}

/* CONTAINER */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* HEADER */
.site-header {
    background-color: #001f3f;
    padding: 20px 0;
    border-bottom: none;
    box-shadow: 0 2px 8px rgba(0, 31, 63, 0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.site-logo {
    font-size: 26px;
    font-weight: 800;
    color: #ffffff;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    letter-spacing: -0.5px;
}

.site-logo:hover {
    color: #b3d9ff;
}

.main-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
}

.main-nav li {
    margin-left: 30px;
}

.main-nav a {
    text-decoration: none;
    color: #ffffff;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: #b3d9ff;
}

/* Footer */
.site-footer {
    background-color: #0a0e14;
    color: #e8eef4;
    padding: 60px 20px 40px;
    margin-top: 100px;
}

.site-footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 40px;
}

.footer-about, .footer-links {
    flex: 1;
}

.footer-links h4 {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 15px;
    font-weight: 700;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #e8eef4;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-links a:hover {
    color: #0074D9;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #1a1f2e;
    font-size: 12px;
    color: #8892a6;
    line-height: 1.8;
}

.footer-bottom p {
    margin-bottom: 8px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    text-align: center;
}

.btn-primary {
    background-color: #001f3f;
    color: #ffffff;
    border: 2px solid #001f3f;
}

.btn-primary:hover {
    background-color: #0074D9;
    border-color: #0074D9;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 116, 217, 0.3);
}

/* Mobile Menu Button */
.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #ffffff;
    padding: 10px;
    transition: transform 0.3s ease;
}

.mobile-menu-button:hover {
    transform: scale(1.1);
}

/* HERO SECTION */
.hero {
    background: linear-gradient(135deg, #001f3f 0%, #0051a5 100%);
    padding: 100px 20px;
    text-align: center;
    color: #ffffff;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 56px;
}

.hero-subtitle {
    font-size: 18px;
    color: #d4e3ff;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 5px;
    font-family: 'Poppins', sans-serif;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: #b3d9ff;
}

.hero-button-container {
    margin-top: 40px;
    margin-bottom: 20px;
}

/* SECTIONS */
.section-platforms {
    padding: 80px 0;
}

.section-editorial {
    background-color: #5498ff;
    padding: 80px 20px;
}

.section-content {
    padding: 80px 20px;
}

.section-alternate {
    background-color: #5498ff;
}

.section-header {
    margin-bottom: 50px;
}

.section-header h2 {
    margin-bottom: 15px;
}

.section-intro {
    font-size: 16px;
    color: #546e7a;
    line-height: 1.8;
}

/* PLATFORM CARDS (HORIZONTAL LAYOUT) */
.platform-cards-vertical {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.platform-card {
    background-color: #ffffff;
    border: 1px solid #e8eef4;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 12px rgba(0, 31, 63, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.platform-card:hover {
    box-shadow: 0 12px 30px rgba(0, 31, 63, 0.15);
    border-color: #0074D9;
    transform: translateY(-2px);
}

.platform-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 30px;
}

.platform-card-title {
    flex: 1;
}

.platform-card h3 {
    margin-bottom: 8px;
    font-size: 28px;
    margin-top: 0;
}

.platform-card-rating {
    text-align: center;
    padding: 20px;
    background-color: #dae8f5;
    border-radius: 12px;
    min-width: 100px;
    flex-shrink: 0;
}

.rating-score {
    font-size: 36px;
    font-weight: 800;
    color: #0074D9;
    margin-bottom: 5px;
    font-family: 'Poppins', sans-serif;
}

.rating-label {
    font-size: 12px;
    color: #546e7a;
    font-weight: 600;
}

.platform-description {
    font-size: 16px;
    line-height: 1.8;
    color: #546e7a;
    margin-bottom: 30px;
}

.platform-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: #2c3e50;
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background-color: #b3d9ff;
    color: #0052A3;
    border-radius: 50%;
    font-weight: bold;
    flex-shrink: 0;
}

.editorial-note {
    background-color: #dae8f5;
    border-left: 4px solid #0074D9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #2c3e50;
    line-height: 1.7;
}

.editorial-note strong {
    color: #001f3f;
}

.platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.tag {
    display: inline-block;
    background-color: #dae8f5;
    color: #001f3f;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid #b3d9ff;
    transition: all 0.3s ease;
}

.tag:hover {
    background-color: #0074D9;
    color: #ffffff;
    border-color: #0074D9;
}

.editorial-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #dae8f5;
    color: #001f3f;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
    border-left: 3px solid #0074D9;
}

.badge-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    background-color: #001f3f;
    padding: 6px;
    border-radius: 4px;
}

.card-image-badge {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #dae8f5 0%, #c0d9f0 100%);
    padding: 20px;
    border-radius: 12px;
    width: 160px;
    height: 160px;
}

.card-badge-img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.platform-subtitle {
    color: #8892a6;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 0;
}

/* Platform card button styling */
.platform-card .btn {
    margin-top: auto;
    align-self: flex-start;
}

/* METHODOLOGY GRID */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.methodology-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e8eef4;
    transition: all 0.3s ease;
}

.methodology-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 31, 63, 0.1);
    border-color: #0074D9;
}

.methodology-item h4 {
    margin-bottom: 15px;
    color: #001f3f;
}

.methodology-item p {
    font-size: 14px;
    line-height: 1.7;
}

/* CONTENT BLOCKS */
.content-blocks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.content-block {
    padding: 30px;
    background-color: #ffffff;
    border-radius: 12px;
    border-left: 4px solid #0074D9;
}

.content-block h3 {
    margin-bottom: 15px;
    color: #001f3f;
}

.content-block p {
    font-size: 15px;
    line-height: 1.8;
    color: #546e7a;
}

/* TEAM HIGHLIGHTS */
.team-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.highlight-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e8eef4;
    text-align: center;
}

.highlight-item h4 {
    margin-bottom: 12px;
}

.highlight-item p {
    font-size: 14px;
    line-height: 1.7;
}

/* FAQ SECTION */
.faq-section {
    padding: 80px 0;
    background-color: #f0f4fa;
    width: 100%;
}

.faq-section .container {
    padding: 0 20px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 50px;
}

.faq-item {
    background: #f0f4fa;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #e8eef4;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-left-color: #0074D9;
    box-shadow: 0 4px 12px rgba(0, 31, 63, 0.08);
}

.faq-item.active {
    border-left-color: #0074D9;
    background-color: #5498ff;
}

.faq-question {
    font-weight: 700;
    cursor: pointer;
    color: #001f3f;
    user-select: none;
    font-size: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 22px;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e8eef4;
    color: #546e7a;
    font-size: 14px;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

/* RESPONSIBLE USE */
.responsible-blocks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.responsible-item {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e8eef4;
}

.responsible-item h3 {
    margin-bottom: 15px;
    color: #001f3f;
}

.responsible-item p {
    font-size: 15px;
    line-height: 1.8;
    color: #546e7a;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .card-header-row {
        flex-direction: column;
    }

    .platform-features {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 30px;
    }

    .hero h1 {
        font-size: 42px;
    }
}

@media (max-width: 768px) {
    .site-header .container {
        flex-wrap: wrap;
    }

    .main-nav {
        display: none;
    }

    .main-nav.active {
        display: block;
        width: 100%;
        order: 3;
        background-color: #001f3f;
        padding: 10px 0 20px;
    }

    .main-nav.active ul {
        flex-direction: column;
        gap: 0;
    }

    .main-nav.active li {
        margin: 0;
        padding: 10px 20px;
    }

    .main-nav.active a {
        display: block;
        padding: 8px 0;
        font-size: 16px;
    }

    .mobile-menu-button {
        display: block;
    }

    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    h3 { font-size: 22px; }

    .hero {
        padding: 60px 20px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .platform-card {
        padding: 25px;
    }

    .card-header-row {
        flex-direction: column;
        gap: 15px;
    }

    .platform-features {
        grid-template-columns: 1fr;
    }

    .methodology-grid,
    .content-blocks,
    .team-highlights,
    .responsible-blocks {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .site-footer .container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        width: 95%;
    }

    h1 { font-size: 28px; }
    h2 { font-size: 22px; }
    h3 { font-size: 18px; }

    .hero {
        padding: 40px 15px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .stat-number {
        font-size: 28px;
    }

    .platform-card {
        padding: 20px;
    }

    .section-platforms,
    .section-editorial,
    .section-content {
        padding: 40px 15px;
    }

    .main-nav li {
        margin: 0;
    }
}