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

:root {
    --primary-blue: #0066CC;
    --dark-blue: #1A47B5;
    --light-blue: #E8F1FF;
    --white: #FFFFFF;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --border-light: #E5E7EB;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

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

/* ============= HEADER & NAVIGATION ============= */
header {
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 20px;
    transition: all 0.3s ease;
}

.logo-section:hover {
    color: var(--primary-blue);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 22px;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: var(--text-dark);
}

/* ============= HERO SECTION ============= */
.hero {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    padding: 80px 20px;
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.hero-badge {
    display: inline-block;
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 102, 204, 0.2);
}

.hero h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 56px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-highlight {
    color: var(--primary-blue);
    background: linear-gradient(120deg, var(--primary-blue), var(--dark-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

/* ============= TOOLS SECTION ============= */
.tools-section {
    max-width: 1200px;
    margin: 100px auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-light);
    max-width: 500px;
    margin: 0 auto;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.tool-card {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.6s ease-out;
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.tool-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 20px;
    color: white;
}

.tool-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.tool-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.tool-card .btn {
    width: 100%;
    justify-content: center;
}

/* ============= CALCULATOR MODAL ============= */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 200;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-light);
}

.modal-header h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-dark);
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.calculator-result {
    background: var(--light-blue);
    border-left: 4px solid var(--primary-blue);
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
    display: none;
}

.calculator-result.show {
    display: block;
    animation: slideInLeft 0.3s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.result-label {
    font-size: 13px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 600;
}

.result-value {
    font-family: 'Poppins', sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-blue);
}

.result-details {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 102, 204, 0.2);
    font-size: 13px;
    color: var(--text-light);
}

/* ============= NEWS SECTION ============= */
.news-section {
    background: var(--light-blue);
    padding: 80px 20px;
    margin: 100px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
    animation: fadeInUp 0.6s ease-out;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    color: white;
}

.news-content {
    padding: 25px;
}

.news-date {
    font-size: 12px;
    color: var(--primary-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.news-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
    line-height: 1.4;
}

.news-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.5;
}

.read-more {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    gap: 10px;
}

/* ============= INFO SECTIONS ============= */
.info-section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.info-grid.reverse {
    direction: rtl;
}

.info-grid.reverse > * {
    direction: ltr;
}

.info-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.3;
}

.info-content p {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.info-list {
    list-style: none;
    margin: 25px 0;
}

.info-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-dark);
}

.info-list li:before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    flex-shrink: 0;
    font-weight: 700;
    font-size: 14px;
}

.info-visual {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: 12px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 100px;
    opacity: 0.8;
}

/* ============= FOOTER ============= */
footer {
    background: linear-gradient(135deg, #0D2B66 0%, var(--primary-blue) 100%);
    color: white;
    padding: 60px 20px 30px;
    margin-top: 100px;
}

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

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

.footer-section h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

/* ============= COMMUNITY POPUP ============= */
.community-popup {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: white;
    border-radius: 16px;
    padding: 30px;
    max-width: 400px;
    box-shadow: var(--shadow-xl);
    z-index: 300;
    display: none;
    animation: slideInRight 0.4s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.community-popup.show {
    display: block;
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.popup-header h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.popup-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
}

.popup-text {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.6;
}

.popup-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.popup-btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.popup-btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
}

.popup-btn-secondary {
    background: var(--light-blue);
    color: var(--primary-blue);
}

.popup-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============= PAGE CONTENT ============= */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    padding: 60px 20px;
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

.page-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: calc(100vh - 400px);
}

.contact-form {
    background: var(--light-blue);
    padding: 40px;
    border-radius: 12px;
    max-width: 600px;
    margin: 40px auto;
}

.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    min-height: 120px;
    resize: vertical;
    transition: all 0.3s ease;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.contact-success {
    display: none;
    background: #ECFDF5;
    border: 1px solid #D1FAE5;
    color: #065F46;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    border-left: 4px solid var(--success);
}

.contact-success.show {
    display: block;
    animation: slideInDown 0.3s ease;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============= SCROLL ANIMATIONS ============= */
.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============= RESPONSIVE ============= */

@media (max-width: 908px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 50px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        width: 100%;
        box-shadow: var(--shadow-md);
        border-bottom: 2px solid var(--border-light);
        z-index: 99;
    }
    
 header {
  padding: 10px; /* Increase from current value */
}
    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-links a {
        display: block;
        padding: 15px 20px;
        border-bottom: none;
    }

    .navbar-container {
        height: auto;
        flex-wrap: wrap;
    }

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

/* ============= UTILITIES ============= */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 40px;
}

.mb-4 {
    margin-bottom: 40px;
}

/* ============= ARTICLE / LONG-FORM CONTENT TYPOGRAPHY ============= */
.page-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 45px 0 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-light);
}

.page-content h2:first-child {
    margin-top: 0;
}

.page-content h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 19px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 28px 0 12px;
}

.page-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-blue);
    margin: 20px 0 10px;
}

.page-content p {
    margin-bottom: 16px;
    color: #374151;
    font-size: 15.5px;
    line-height: 1.8;
}

.page-content ul,
.page-content ol {
    margin: 0 0 20px 22px;
    color: #374151;
    font-size: 15.5px;
    line-height: 1.8;
}

.page-content ul li,
.page-content ol li {
    margin-bottom: 8px;
}

.page-content a {
    color: var(--primary-blue);
    font-weight: 600;
}

.page-content strong {
    color: var(--text-dark);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: 25px;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ============= BREADCRUMB ============= */
.breadcrumb {
    max-width: 1000px;
    margin: 18px auto 0;
    padding: 0 20px;
    font-size: 13px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span.sep {
    margin: 0 6px;
    color: #C1C9D6;
}

/* ============= TABLE OF CONTENTS ============= */
.toc-box {
    background: var(--light-blue);
    border: 1px solid #D3E4FF;
    border-radius: 12px;
    padding: 22px 26px;
    margin: 25px 0 35px;
}

.toc-box h4 {
    margin: 0 0 12px;
    color: var(--dark-blue);
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
}

.toc-box ol {
    margin: 0 0 0 20px;
    font-size: 14px;
}

.toc-box ol li {
    margin-bottom: 6px;
}

.toc-box a {
    color: var(--text-dark);
    text-decoration: none;
}

.toc-box a:hover {
    color: var(--primary-blue);
    text-decoration: underline;
}

/* ============= CALLOUT BOXES ============= */
.callout {
    border-radius: 10px;
    padding: 20px 24px;
    margin: 25px 0;
    font-size: 14.5px;
    line-height: 1.7;
}

.callout h4 {
    margin-top: 0 !important;
    margin-bottom: 8px !important;
}

.callout p:last-child {
    margin-bottom: 0;
}

.callout-info {
    background: var(--light-blue);
    border-left: 4px solid var(--primary-blue);
    color: #1E3A6D;
}

.callout-warning {
    background: #FEF3C7;
    border-left: 4px solid var(--warning);
    color: #92400E;
}

.callout-success {
    background: #ECFDF5;
    border-left: 4px solid var(--success);
    color: #065F46;
}

/* ============= DATA TABLES ============= */
.page-content table,
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0 30px;
    font-size: 14px;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.page-content th,
.page-content td,
.data-table th,
.data-table td {
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    text-align: left;
}

.page-content th,
.data-table th {
    background: var(--primary-blue);
    color: white;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.page-content tr:nth-child(even) td,
.data-table tr:nth-child(even) td {
    background: #F8FAFF;
}

.table-scroll {
    overflow-x: auto;
    margin: 20px 0 30px;
}

.table-scroll table {
    margin: 0;
}

/* ============= FAQ ACCORDION ============= */
.faq-item {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-item summary {
    cursor: pointer;
    padding: 16px 20px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-dark);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 20px;
    color: var(--primary-blue);
    font-weight: 400;
    margin-left: 10px;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item[open] summary {
    border-bottom: 1px solid var(--border-light);
}

.faq-answer {
    padding: 4px 20px 18px;
    color: var(--text-light);
    font-size: 14.5px;
    line-height: 1.7;
}

/* ============= RELATED / ARTICLE CARDS ============= */
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin: 20px 0 30px;
}

.related-card {
    display: block;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.related-card .related-icon {
    font-size: 26px;
    margin-bottom: 10px;
    display: block;
}

.related-card h4 {
    color: var(--text-dark) !important;
    font-size: 16px !important;
    margin: 0 0 8px !important;
}

.related-card p {
    color: var(--text-light);
    font-size: 13.5px;
    margin: 0 !important;
    line-height: 1.6 !important;
}

/* ============= ANCHOR-BASED TOOL CARDS ============= */
a.tool-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

a.news-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card .read-more-link {
    display: inline-block;
    margin-top: 12px;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 13.5px;
}

.tool-card .badge-new {
    display: inline-block;
    background: var(--success);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

/* ============= CALCULATOR PAGE LAYOUT ============= */
.calc-wrapper {
    background: var(--light-blue);
    border-radius: 16px;
    padding: 35px;
    max-width: 650px;
    margin: 0 auto 40px;
}

@media (max-width: 600px) {
    .calc-wrapper {
        padding: 22px;
    }
}

.quick-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 25px 0 35px;
}

.quick-fact {
    background: var(--light-blue);
    border-radius: 10px;
    padding: 18px 20px;
    text-align: center;
}

.quick-fact .qf-value {
    font-family: 'Poppins', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
    margin-bottom: 4px;
}

.quick-fact .qf-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

/* =====================================================================
   ENHANCEMENTS (Sep 2026): smooth glow, dark mode, new calculator UI
   Existing colours are kept — these rules only add depth and glow.
   ===================================================================== */
:root {
    --page-bg: #FFFFFF;
    --surface: #FFFFFF;
    --surface-2: #F8FAFF;
    --body-text: #374151;
    --link: #0066CC;
    --glow-blue: rgba(0, 102, 204, 0.35);
    --glow-soft: rgba(0, 102, 204, 0.18);
    --warn-bg: #FEF3C7;
    --warn-text: #92400E;
    --ok-bg: #ECFDF5;
    --ok-text: #065F46;
    --info-text: #1E3A6D;
    --toc-border: #D3E4FF;
    --input-bg: #FFFFFF;
    --theme-speed: 0.35s;
}

body { background-color: var(--page-bg); }

body, header, footer, .tool-card, .news-card, .related-card, .faq-item,
.calc-wrapper, .toc-box, .callout, .quick-fact, .page-content table,
.modal-content, .community-popup, .form-group input, .form-group select,
.form-group textarea, .contact-form {
    transition: background-color var(--theme-speed) ease, color var(--theme-speed) ease,
                border-color var(--theme-speed) ease, box-shadow 0.3s ease, transform 0.3s ease;
}

/* ---------- Glow: brand elements ---------- */
.logo-icon { box-shadow: 0 4px 14px var(--glow-blue); }
.logo-section:hover .logo-icon { box-shadow: 0 0 0 4px var(--glow-soft), 0 6px 22px var(--glow-blue); }

.btn-primary {
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px var(--glow-blue);
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -120%;
    width: 60%; height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
    transform: skewX(-20deg);
    transition: left 0.7s ease;
    pointer-events: none;
}
.btn-primary:hover::after { left: 140%; }
.btn-primary:hover { box-shadow: 0 10px 32px rgba(0, 102, 204, 0.5); }
.btn-secondary:hover { box-shadow: 0 0 0 4px var(--glow-soft); }

.hero { position: relative; overflow: hidden; }
.hero::before {
    content: '';
    position: absolute;
    width: 620px; height: 620px;
    top: -260px; left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(0, 102, 204, 0.16) 0%, transparent 65%);
    pointer-events: none;
    animation: glowPulse 7s ease-in-out infinite;
}
.hero-container { position: relative; }
.hero-highlight { filter: drop-shadow(0 0 18px rgba(0, 102, 204, 0.35)); }
.hero-badge { box-shadow: 0 0 18px var(--glow-soft); }

@keyframes glowPulse {
    0%, 100% { opacity: 0.75; transform: translateX(-50%) scale(1); }
    50% { opacity: 1; transform: translateX(-50%) scale(1.08); }
}

.page-header { position: relative; overflow: hidden; }
.page-header::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 20% 0%, rgba(255,255,255,0.18), transparent 55%),
                radial-gradient(ellipse at 85% 100%, rgba(120, 180, 255, 0.25), transparent 55%);
    pointer-events: none;
}
.page-header h1, .page-header p { position: relative; }
.page-header h1 { text-shadow: 0 0 24px rgba(160, 205, 255, 0.45); }

.tool-icon { box-shadow: 0 8px 22px var(--glow-blue); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.tool-card:hover .tool-icon { transform: scale(1.06) rotate(-3deg); box-shadow: 0 10px 30px rgba(0, 102, 204, 0.55); }
.tool-card:hover, .related-card:hover, .news-card:hover {
    box-shadow: 0 0 0 1px rgba(0, 102, 204, 0.35), 0 14px 40px rgba(0, 102, 204, 0.22);
}
.calc-wrapper { box-shadow: 0 0 0 1px rgba(0, 102, 204, 0.12), 0 12px 40px rgba(0, 102, 204, 0.12); }
.result-value { text-shadow: 0 0 22px rgba(0, 102, 204, 0.28); }
.calculator-result { box-shadow: 0 6px 24px var(--glow-soft); }
.info-visual { box-shadow: 0 18px 50px rgba(0, 102, 204, 0.3); }
.quick-fact { box-shadow: inset 0 0 0 1px rgba(0, 102, 204, 0.12); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15), 0 0 18px rgba(0, 102, 204, 0.18);
}

/* ---------- Theme toggle button ---------- */
.nav-links { margin-left: auto; }
.theme-toggle {
    margin-left: 22px;
    width: 42px; height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border-light);
    background: var(--light-blue);
    color: var(--primary-blue);
    font-size: 18px;
    cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: transform 0.4s ease, box-shadow 0.3s ease, background-color var(--theme-speed) ease;
}
.theme-toggle:hover { transform: rotate(20deg); box-shadow: 0 0 0 4px var(--glow-soft), 0 0 18px var(--glow-blue); }
.theme-toggle:focus-visible { outline: 2px solid var(--primary-blue); outline-offset: 2px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (max-width: 908px) {
    .theme-toggle { margin-left: auto; margin-right: 12px; width: 38px; height: 38px; font-size: 16px; }
}

/* ---------- Dark theme tokens ---------- */
[data-theme="dark"] {
    color-scheme: dark;
    --primary-blue: #2E86F0;
    --dark-blue: #1F5FD1;
    --light-blue: #122340;
    --white: #111A2E;
    --text-dark: #E6EDF7;
    --text-light: #9DAAC0;
    --border-light: #24344F;
    --page-bg: #0A1120;
    --surface: #111A2E;
    --surface-2: #0F1829;
    --body-text: #C9D4E5;
    --link: #6AB0FF;
    --glow-blue: rgba(46, 134, 240, 0.45);
    --glow-soft: rgba(46, 134, 240, 0.22);
    --warn-bg: #2B2311;
    --warn-text: #F8D38A;
    --ok-bg: #0F2A22;
    --ok-text: #86E3BF;
    --info-text: #BFD9FF;
    --toc-border: #22406E;
    --input-bg: #0D1628;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 44px rgba(0, 0, 0, 0.55);
}
[data-theme="dark"] body { background-color: var(--page-bg); color: var(--text-dark); }
[data-theme="dark"] header { background: rgba(13, 21, 38, 0.92); backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--border-light); }
[data-theme="dark"] .hero { background: radial-gradient(ellipse at top, #13284A 0%, var(--page-bg) 70%); }
[data-theme="dark"] .hero::before { background: radial-gradient(circle, rgba(46, 134, 240, 0.28) 0%, transparent 65%); }
[data-theme="dark"] .hero-highlight { background: linear-gradient(120deg, #5AA8FF, #8FC3FF); -webkit-background-clip: text; background-clip: text; filter: drop-shadow(0 0 22px rgba(90, 168, 255, 0.5)); }
[data-theme="dark"] .hero-badge { color: #8FC3FF; background: rgba(46, 134, 240, 0.12); border-color: rgba(46, 134, 240, 0.35); }
[data-theme="dark"] .btn-secondary { background: transparent; color: #8FC3FF; border-color: #2E86F0; }
[data-theme="dark"] .btn-secondary:hover { background: rgba(46, 134, 240, 0.12); }
[data-theme="dark"] .page-header { background: linear-gradient(135deg, #0F3B85, #14307A); }
[data-theme="dark"] footer { background: linear-gradient(135deg, #060C18 0%, #0E2A5C 100%); border-top: 1px solid var(--border-light); }
[data-theme="dark"] .news-section { background: #0D1830; }
[data-theme="dark"] .news-card, [data-theme="dark"] .modal-content, [data-theme="dark"] .community-popup { background: var(--surface); color: var(--text-dark); }
[data-theme="dark"] .page-content p, [data-theme="dark"] .page-content ul, [data-theme="dark"] .page-content ol { color: var(--body-text); }
[data-theme="dark"] .page-content a, [data-theme="dark"] .breadcrumb a, [data-theme="dark"] .read-more,
[data-theme="dark"] .news-card .read-more-link { color: var(--link); }
[data-theme="dark"] .page-content h4, [data-theme="dark"] .toc-box h4 { color: #8FC3FF; }
[data-theme="dark"] .toc-box { border-color: var(--toc-border); }
[data-theme="dark"] .page-content tr:nth-child(even) td, [data-theme="dark"] .data-table tr:nth-child(even) td { background: var(--surface-2); }
[data-theme="dark"] .page-content th, [data-theme="dark"] .data-table th { background: #1B4F9C; }
[data-theme="dark"] .callout-info { color: var(--info-text); }
[data-theme="dark"] .callout-warning { background: var(--warn-bg); color: var(--warn-text); }
[data-theme="dark"] .callout-success, [data-theme="dark"] .contact-success { background: var(--ok-bg); color: var(--ok-text); border-color: #1D4D3E; }
[data-theme="dark"] .callout strong { color: inherit; }
[data-theme="dark"] .form-group input, [data-theme="dark"] .form-group select, [data-theme="dark"] .form-group textarea {
    background: var(--input-bg); color: var(--text-dark); border-color: var(--border-light);
}
[data-theme="dark"] .result-value { color: #6AB0FF; text-shadow: 0 0 24px rgba(106, 176, 255, 0.45); }
[data-theme="dark"] .quick-fact .qf-value { color: #6AB0FF; }
[data-theme="dark"] .info-list li:before { background: rgba(46, 134, 240, 0.18); color: #8FC3FF; }
[data-theme="dark"] .breadcrumb span.sep { color: #3A4A66; }
[data-theme="dark"] .tool-card:hover, [data-theme="dark"] .related-card:hover, [data-theme="dark"] .news-card:hover {
    box-shadow: 0 0 0 1px rgba(46, 134, 240, 0.5), 0 14px 44px rgba(46, 134, 240, 0.25);
}
@media (max-width: 908px) {
    [data-theme="dark"] .nav-links { background: var(--surface); }
}
/* Inline-style blocks used across existing pages */
[data-theme="dark"] [style*="background: #E8F1FF"], [data-theme="dark"] [style*="background:#E8F1FF"] { background: var(--light-blue) !important; }
[data-theme="dark"] [style*="background: white"], [data-theme="dark"] [style*="background:white"] { background: #0C1527 !important; }
[data-theme="dark"] [style*="color: #1F2937"], [data-theme="dark"] [style*="color:#1F2937"] { color: var(--text-dark) !important; }
[data-theme="dark"] [style*="color: #6B7280"], [data-theme="dark"] [style*="color:#6B7280"] { color: var(--text-light) !important; }
[data-theme="dark"] [style*="color: #0066CC"], [data-theme="dark"] [style*="color:#0066CC"] { color: #6AB0FF !important; }
[data-theme="dark"] [style*="background: #FEF3C7"] { background: var(--warn-bg) !important; }
[data-theme="dark"] [style*="color: #92400E"] { color: var(--warn-text) !important; }
[data-theme="dark"] footer input[type="email"] { background: #0D1628; color: var(--text-dark); border: 1px solid var(--border-light) !important; }

@media (prefers-reduced-motion: reduce) {
    .hero::before { animation: none; }
    .btn-primary::after { display: none; }
    * { transition-duration: 0.01ms !important; }
}

/* ---------- New calculator components ---------- */
.calc-wrapper.calc-wide { max-width: 860px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 20px; }
.form-group small.hint { display: block; margin-top: 6px; font-size: 12.5px; color: var(--text-light); }
.form-group input, .form-group select { background: var(--input-bg); color: var(--text-dark); }
.calc-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.calc-actions .btn { flex: 1; justify-content: center; min-width: 180px; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin: 18px 0 6px; }
.result-tile { background: var(--surface); border: 1px solid var(--border-light); border-radius: 10px; padding: 14px 16px; }
.result-tile .rt-label { display: block; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-light); font-weight: 600; margin-bottom: 4px; }
.result-tile .rt-value { font-family: 'Poppins', sans-serif; font-size: 20px; font-weight: 700; color: var(--text-dark); }
.result-tile.highlight { border-color: var(--primary-blue); box-shadow: 0 0 0 1px var(--glow-soft), 0 6px 22px var(--glow-soft); }
.result-tile.highlight .rt-value { color: var(--primary-blue); }
[data-theme="dark"] .result-tile.highlight .rt-value { color: #6AB0FF; }
.calculator-result table { margin: 14px 0 6px; font-size: 13.5px; }
.calculator-result table td:last-child, .calculator-result table th:last-child { text-align: right; }
.calculator-result .table-scroll { margin: 10px 0; }
.bar-compare { margin: 16px 0 4px; }
.bar-compare .bar-row { display: grid; grid-template-columns: 110px 1fr 110px; gap: 10px; align-items: center; margin: 8px 0; font-size: 13px; color: var(--text-dark); }
.bar-compare .bar-track { background: var(--border-light); border-radius: 20px; height: 12px; overflow: hidden; }
.bar-compare .bar-fill { height: 100%; border-radius: 20px; background: linear-gradient(90deg, var(--primary-blue), #5AA8FF); box-shadow: 0 0 12px var(--glow-blue); width: 0; transition: width 0.8s ease; }
.bar-compare .bar-fill.old { background: linear-gradient(90deg, #94A3B8, #CBD5E1); box-shadow: none; }
.bar-compare .bar-row span:last-child { text-align: right; font-weight: 600; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 16px; }
.chip { border: 1px solid var(--border-light); background: var(--surface); color: var(--text-dark); padding: 7px 13px; border-radius: 20px; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.25s ease; font-family: inherit; }
.chip:hover { border-color: var(--primary-blue); }
.chip.active { background: var(--primary-blue); border-color: var(--primary-blue); color: #fff; box-shadow: 0 0 14px var(--glow-blue); }
.matrix-table td.cell-hit { background: var(--primary-blue) !important; color: #fff; font-weight: 700; box-shadow: inset 0 0 0 2px #fff; }
.download-box { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; background: var(--light-blue); border: 1px solid var(--toc-border); border-radius: 14px; padding: 24px; margin: 25px 0; box-shadow: 0 10px 30px var(--glow-soft); }
.download-box .dl-icon { font-size: 44px; filter: drop-shadow(0 0 12px var(--glow-blue)); }
.download-box .dl-text { flex: 1; min-width: 220px; }
.download-box .dl-text h3 { margin: 0 0 6px !important; }
.download-box .dl-text p { margin: 0 !important; font-size: 14px !important; }
.updated-badge { display: inline-block; background: rgba(16, 185, 129, 0.12); color: #059669; border: 1px solid rgba(16, 185, 129, 0.35); padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
[data-theme="dark"] .updated-badge { color: #6EE7B7; }
.timeline { list-style: none; margin: 20px 0 30px !important; padding: 0; border-left: 3px solid var(--primary-blue); }
.timeline li { position: relative; padding: 0 0 18px 22px; margin: 0 !important; }
.timeline li::before { content: ''; position: absolute; left: -9px; top: 6px; width: 15px; height: 15px; border-radius: 50%; background: var(--primary-blue); box-shadow: 0 0 0 4px var(--glow-soft), 0 0 12px var(--glow-blue); }
.timeline li strong { display: block; color: var(--text-dark); }
.sources-list { font-size: 13.5px !important; }
@media print {
    header, footer, .theme-toggle, .community-popup, .calc-wrapper, .breadcrumb, .related-grid, .no-print { display: none !important; }
    .page-header { background: none !important; color: #000 !important; padding: 10px 0 !important; }
    .page-header h1 { text-shadow: none !important; }
    body { background: #fff !important; }
}

/* ---------- Mobile polish (header fits toggle + menu; headings no longer overflow) ---------- */
@media (max-width: 908px) {
    .navbar-container { flex-wrap: nowrap; padding: 0 14px; }
    .logo-section { font-size: 18px; min-width: 0; }
    .logo-section span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .nav-links { top: 64px; }
}
@media (max-width: 600px) {
    .hero { padding: 56px 16px; }
    .hero h1 { font-size: 34px; }
    .hero p { font-size: 16px; }
    .section-header h2 { font-size: 30px; }
    .page-header h1 { font-size: 30px; }
    .info-content h2 { font-size: 28px; }
    .info-grid { grid-template-columns: 1fr; gap: 30px; }
    .info-visual { min-height: 220px; font-size: 70px; }
    .bar-compare .bar-row { grid-template-columns: 80px 1fr 90px; font-size: 12px; }
}
@media print {
    body.print-only-matrix .page-content > *:not(#pdf-custom-area) { display: none !important; }
    body.print-only-matrix .page-header { display: none !important; }
    body.print-only-matrix .table-scroll { max-height: none !important; overflow: visible !important; }
    body.print-only-matrix table { font-size: 8px !important; }
    body.print-only-matrix th, body.print-only-matrix td { padding: 2px 3px !important; }
}
.page-content a.btn-primary, [data-theme="dark"] .page-content a.btn-primary { color: #FFFFFF; text-decoration: none; }
.page-content a.btn-secondary { text-decoration: none; }
[data-theme="dark"] .page-content a.btn-secondary { color: #8FC3FF; }

/* ---------- Announcement bar (managed from /admin) ---------- */
.announce-bar { font-size: 14px; position: relative; z-index: 101; }
.announce-inner { max-width: 1400px; margin: 0 auto; padding: 9px 48px 9px 20px; text-align: center; position: relative; }
.announce-bar a, .announce-bar span { color: inherit; font-weight: 600; text-decoration: none; }
.announce-bar a:hover { text-decoration: underline; }
.announce-info { background: linear-gradient(90deg, #0066CC, #1A47B5); color: #fff; }
.announce-warning { background: #FEF3C7; color: #92400E; }
.announce-success { background: #ECFDF5; color: #065F46; }
.announce-close { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: 0; color: inherit; font-size: 16px; cursor: pointer; opacity: .8; }
[data-theme="dark"] .announce-warning { background: #2B2311; color: #F8D38A; }
[data-theme="dark"] .announce-success { background: #0F2A22; color: #86E3BF; }