/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2E7D32;
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --text-primary: #212121;
    --text-secondary: #616161;
    --background: #FFFFFF;
    --background-light: #F5F5F5;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.1);
    --max-width: 1400px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    font-size: 16px;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .logo-text {
        font-size: 1rem;
    }
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
}

.hamburger {
    display: none; /* Hidden by default on desktop */
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    background: transparent;
    border: none;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    justify-content: center;
    align-items: center;
    position: relative;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

/* Show hamburger on mobile */
@media (max-width: 768px) {
    .hamburger {
        display: flex !important;
    }
}

.hamburger svg {
    width: 24px;
    height: 24px;
    transition: all 0.3s ease;
}

.hamburger svg path {
    transition: all 0.3s ease;
    transform-origin: 12px 12px;
    stroke: currentColor;
}

.hamburger.active svg path:nth-child(1) {
    transform: translate(0, 12px) rotate(45deg);
}

.hamburger.active svg path:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.hamburger.active svg path:nth-child(3) {
    transform: translate(0, -12px) rotate(-45deg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: top 0.3s ease, left 0.3s ease;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.hero-cta-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.hero-avatars {
    display: flex;
    align-items: center;
    margin-right: var(--spacing-xs);
    justify-content: flex-start;
}

.hero-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    margin-left: -12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hero-avatar:first-child {
    margin-left: 0;
}

.hero-social-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
    white-space: nowrap;
}

.hero-social-text strong {
    color: var(--primary-color);
    font-weight: 700;
}

.hero-note {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.hero-note-item {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.hero-disclaimer {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
    font-style: italic;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 1200px;
    margin: var(--spacing-sm) auto var(--spacing-lg);
    line-height: 1.8;
    font-weight: 400;
}

/* Info Section */
.info-section {
    background: white;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.card {
    background: white;
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: white;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Benefits Section */
.benefits-section {
    background: var(--background-light);
}

.benefits-section .container {
    max-width: 1700px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    width: 100%;
}

.benefit-item {
    background: white;
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.benefit-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.benefit-text {
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 100%;
}

/* How it Works Section */
.how-it-works-section {
    background: var(--background-light);
}

.process-steps {
    position: relative;
    max-width: 1100px;
    margin: var(--spacing-xl) auto;
    padding-bottom: var(--spacing-lg);
}

.process-line {
    position: absolute;
    left: 45px;
    top: 45px;
    bottom: 45px;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-light) 100%);
    z-index: 0;
}

.process-step {
    position: relative;
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    background: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 1;
    align-items: flex-start;
}

.process-step:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
}

.process-step:last-child {
    margin-bottom: 0;
}

.process-step-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

.process-step-content {
    flex: 1;
}

.process-step-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.process-step-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.process-step-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* Knowledge Base Section */
.knowledge-section {
    background: white;
    padding: var(--spacing-lg) 0;
}

.knowledge-section .container {
    max-width: 1900px;
}

.knowledge-section .section-subtitle {
    margin-bottom: var(--spacing-xs);
}

.knowledge-grid-wrapper {
    width: 100%;
    overflow: hidden;
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-sm);
    max-width: 1900px;
    margin-left: auto;
    margin-right: auto;
}

.knowledge-grid {
    display: flex;
    overflow-x: auto;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scroll-padding-left: var(--spacing-xl);
}

.knowledge-grid::-webkit-scrollbar {
    height: 8px;
}

.knowledge-grid::-webkit-scrollbar-track {
    background: var(--background-light);
    border-radius: 4px;
}

.knowledge-grid::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.knowledge-grid::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.knowledge-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
    border-radius: 20px;
    padding: var(--spacing-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(16, 185, 129, 0.1);
    width: calc((1900px - (3 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 4);
    min-width: calc((1900px - (3 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 4);
    max-width: calc((1900px - (3 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 4);
    flex-shrink: 0;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
}

.knowledge-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.3);
}


.knowledge-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    min-height: 60px;
}

.knowledge-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-color);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
}

.knowledge-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin: 0;
    flex: 1;
    display: flex;
    align-items: center;
    min-height: 48px;
}

.knowledge-card-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0;
}



/* CTA Inline */
.cta-inline {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    text-align: center;
    color: white;
}

.cta-inline-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.cta-inline-text {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.cta-inline .btn-primary {
    background-color: white;
    color: var(--primary-color);
}

.cta-inline .btn-primary:hover {
    background-color: var(--background-light);
}

/* Detailed Info Section (for other pages) */
.detailed-info-section {
    background: white;
}

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

.info-block {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: 12px;
}

.info-block-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.info-block-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.info-block-text:last-child {
    margin-bottom: 0;
}

.info-list {
    margin: var(--spacing-sm) 0 var(--spacing-md);
    padding-left: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

.info-list li {
    margin-bottom: var(--spacing-xs);
}

.info-block-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.info-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s, text-decoration 0.2s;
}

.info-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* FAQ Section */
.faq-section {
    background: var(--background-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-hover);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    padding: var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
    user-select: none;
}

.faq-question:hover {
    background-color: var(--background-light);
}

.faq-question-text {
    flex: 1;
}

.faq-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: var(--spacing-sm);
}

.faq-toggle::before {
    content: '›';
    font-weight: bold;
}

.faq-item.active .faq-toggle {
    transform: rotate(90deg);
}

.faq-answer {
    color: var(--text-secondary);
    line-height: 1.8;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease, margin 0.3s ease;
    margin: 0;
    opacity: 0;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-md) var(--spacing-md);
    margin-top: var(--spacing-sm);
    opacity: 1;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
}

.cta-content {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: white;
}

.cta-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: white;
    line-height: 1.3;
}

.cta-text {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.7;
}

.cta-features {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: stretch;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    width: 100%;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.cta-feature {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    min-height: 50px;
    flex: 1 1 0;
    max-width: calc((1000px - (3 * var(--spacing-md))) / 4);
    min-width: 0;
    overflow: hidden;
}

.cta-feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    min-width: 1.5rem;
}

.cta-feature-text {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.3;
    flex: 1;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.cta-button {
    background-color: white;
    color: var(--primary-color);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    font-size: 1.125rem;
    padding: 18px 36px;
}

.cta-button:hover {
    background-color: var(--background-light);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.cta-button-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.cta-social-proof {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.cta-avatars {
    display: flex;
    align-items: center;
    margin-right: var(--spacing-xs);
}

.cta-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8125rem;
    margin-left: -10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.cta-avatar:first-child {
    margin-left: 0;
}

.cta-guarantee {
    font-size: 0.9375rem;
    opacity: 0.9;
    margin: 0;
}

.cta-guarantee strong {
    font-weight: 700;
    opacity: 1;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.footer-content-grid {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-xl);
    flex: 1;
    min-width: 300px;
}

.footer-brand {
    flex: 1;
    min-width: 250px;
    max-width: 400px;
}

.footer-section {
    flex: 1;
    min-width: 150px;
}

.footer .logo-text {
    color: white;
}

.footer-tagline {
    margin-top: var(--spacing-sm);
    opacity: 0.9;
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 400px;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    color: white;
    text-decoration: none;
    opacity: 0.85;
    transition: opacity 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
}

.footer-link:hover {
    opacity: 1;
    transform: translateX(4px);
}

.footer-trust {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    opacity: 0.9;
}

.footer-trust-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.footer-trust-text {
    font-size: 0.9375rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: var(--spacing-md);
    text-align: center;
    opacity: 0.8;
    font-size: 0.875rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom-text {
    flex: 1;
    text-align: center;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-social-link {
    color: white;
    opacity: 0.8;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-social-link svg {
    width: 20px;
    height: 20px;
}

.footer-social-link:hover {
    opacity: 1;
    background: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.4);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .knowledge-section .container {
        max-width: 95%;
    }
    
    .knowledge-grid-wrapper {
        max-width: 95%;
    }
    
    .knowledge-card {
        width: calc((100% - (2 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 3);
        min-width: calc((100% - (2 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 3);
        max-width: calc((100% - (2 * var(--spacing-lg)) - (2 * var(--spacing-xl))) / 3);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .nav {
        justify-content: flex-end;
        position: relative;
        width: auto;
    }
    
    .nav-menu {
        position: fixed;
        top: -100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        z-index: 999;
        gap: var(--spacing-md);
        transition: top 0.3s ease;
        display: none;
    }
    
    .nav-menu.active {
        top: 70px;
        display: flex;
    }
    
    .nav-link {
        font-size: 0.875rem;
        padding: var(--spacing-xs);
    }
    
    /* Hero content mobile */
    .hero-content {
        padding: 0 var(--spacing-sm) !important;
    }
    
    /* Hero notes in one row on mobile */
    .hero-note {
        flex-direction: row !important;
        justify-content: space-between;
        gap: 0.5rem;
        flex-wrap: nowrap;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0.5rem 0.75rem !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
    }
    
    .hero-note-item {
        font-size: 0.75rem !important;
        white-space: normal !important;
        flex: 1 1 0 !important;
        min-width: 0 !important;
        padding: 0.25rem 0.35rem !important;
        overflow: visible !important;
        text-overflow: clip !important;
        text-align: center !important;
        line-height: 1.3 !important;
        word-break: break-word !important;
    }
    
    /* CTA features responsive */
    .cta-features {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-sm);
    }
    
    .cta-feature {
        max-width: none !important;
        padding: var(--spacing-sm);
        flex: none !important;
    }
    
    .cta-feature-text {
        font-size: 0.875rem;
        white-space: normal;
    }
    
    /* Knowledge cards mobile responsive */
    .knowledge-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md);
        overflow-x: visible !important;
        padding: 0;
    }
    
    .knowledge-card {
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
    }
    
    .knowledge-header {
        flex-direction: row !important;
        align-items: center !important;
        gap: var(--spacing-sm);
    }
    
    .knowledge-icon {
        flex-shrink: 0;
        width: 56px;
        height: 56px;
    }
    
    .knowledge-card-title {
        flex: 1;
        text-align: left;
    }
    
    /* Benefit cards mobile layout: icon left, title right, text below */
    .benefit-item {
        display: flex;
        flex-direction: column;
    }
    
    .benefit-icon {
        align-self: flex-start;
        margin-bottom: var(--spacing-sm);
        flex-shrink: 0;
        width: 56px;
        height: 56px;
    }
    
    .benefit-title {
        margin-bottom: var(--spacing-xs);
    }
    
    .benefit-text {
        width: 100%;
    }
    
    /* Card mobile layout: icon left, title right, text below */
    .card {
        display: flex;
        flex-direction: column;
    }
    
    .card-icon {
        align-self: flex-start;
        margin-bottom: var(--spacing-sm);
        flex-shrink: 0;
        width: 56px;
        height: 56px;
    }
    
    .card-title {
        margin-bottom: var(--spacing-xs);
    }
    
    .card-text {
        width: 100%;
    }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* Hero notes font size on mobile */
    .hero-note {
        gap: 0.4rem !important;
        padding: 0.4rem 0.6rem !important;
        max-width: 100% !important;
    }
    
    .hero-note-item {
        font-size: 0.7rem !important;
        padding: 0.2rem 0.3rem !important;
        flex: 1 1 0 !important;
        min-width: 0 !important;
        white-space: normal !important;
        line-height: 1.3 !important;
        word-break: break-word !important;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .cards-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .knowledge-grid-wrapper {
        padding: var(--spacing-lg) 0;
    }
    
    .knowledge-grid {
        display: flex;
        overflow-x: auto;
        padding: var(--spacing-md) var(--spacing-sm);
        padding-bottom: var(--spacing-lg);
    }
    
    .knowledge-card {
        padding: var(--spacing-md);
        width: 300px;
        min-width: 300px;
        max-width: 300px;
    }
    
    .knowledge-header {
        flex-direction: row !important;
        align-items: center !important;
        gap: var(--spacing-sm);
    }
    
    .knowledge-icon {
        margin-bottom: 0;
        flex-shrink: 0;
        width: 56px;
        height: 56px;
    }
    
    .knowledge-card-title {
        flex: 1;
        text-align: left;
    }
    
    .knowledge-card-title {
        font-size: 1.25rem;
        min-height: auto;
    }
    
    .knowledge-card > .knowledge-card-text:first-of-type {
        min-height: auto;
    }
    
    /* Benefit cards mobile layout: icon left, title right, text below both */
    .benefit-item {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-start;
    }
    
    .benefit-icon {
        flex-shrink: 0;
        width: 56px;
        height: 56px;
        margin-bottom: var(--spacing-sm);
        margin-right: var(--spacing-md);
        align-self: center;
    }
    
    .benefit-title {
        flex: 1;
        margin-bottom: var(--spacing-xs);
        min-width: 0;
        align-self: center;
    }
    
    .benefit-text {
        width: 100%;
        margin-top: var(--spacing-xs);
        margin-left: 0;
    }
    
    /* Card mobile layout: icon left, title right, text below both */
    .card {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-start;
    }
    
    .card-icon {
        flex-shrink: 0;
        width: 56px;
        height: 56px;
        margin-bottom: var(--spacing-sm);
        margin-right: var(--spacing-md);
        align-self: center;
    }
    
    .card-title {
        flex: 1;
        margin-bottom: var(--spacing-xs);
        min-width: 0;
        align-self: center;
    }
    
    .card-text {
        width: 100%;
        margin-top: var(--spacing-xs);
        margin-left: 0;
    }
    
    .process-line {
        display: none;
    }
    
    .process-step {
        flex-direction: row;
        text-align: left;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .process-step-icon {
        margin: 0;
        flex-shrink: 0;
        width: 70px;
        height: 70px;
    }
    
    .process-step-content {
        flex: 1;
    }
    
    .process-step-number {
        margin-bottom: 0.25rem;
    }
    
    .process-step-title {
        margin-bottom: var(--spacing-xs);
    }
    
    .footer {
        padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .footer-content-grid {
        flex-direction: column;
        gap: var(--spacing-md);
        min-width: 100%;
        width: 100%;
    }
    
    .footer-brand {
        min-width: 100%;
        max-width: 100%;
    }
    
    .footer-section {
        margin-bottom: var(--spacing-md);
        min-width: 100%;
        width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .hero-cta-left {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-social-proof {
        flex-direction: column;
        gap: var(--spacing-xs);
        text-align: center;
    }
    
    .hero-social-text {
        white-space: normal;
        font-size: 0.875rem;
    }
    
    .hero-note {
        flex-direction: row !important;
        justify-content: space-between;
        gap: 0.1rem !important;
        flex-wrap: nowrap;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        box-sizing: border-box !important;
    }
    
    .hero-note-item {
        font-size: 0.65rem !important;
        padding: 0.15rem 0.1rem !important;
        flex: 1 1 0 !important;
        min-width: 0 !important;
        overflow: visible !important;
        text-overflow: clip !important;
        white-space: normal !important;
        line-height: 1.3 !important;
        word-break: break-word !important;
    }
    
    .cta-inline-title {
        font-size: 1.5rem;
    }
    
    .cta-inline-text {
        font-size: 1rem;
    }
}

@media (max-width: 640px) {
    .footer {
        padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .footer-content-grid {
        flex-direction: column;
        gap: var(--spacing-md);
        min-width: 100%;
        width: 100%;
    }
    
    .footer-brand {
        min-width: 100%;
        max-width: 100%;
    }
    
    .footer-section {
        min-width: 100%;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.625rem;
    }
    
    .hero-subtitle {
        font-size: 0.9375rem;
    }
    
    .btn-large {
        padding: 14px 20px;
        font-size: 0.9375rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .cta-text {
        font-size: 1rem;
    }
    
    .cta-features {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .footer {
        padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .footer-content-grid {
        flex-direction: column;
        gap: var(--spacing-md);
        min-width: 100%;
        width: 100%;
    }
    
    .footer-brand {
        min-width: 100%;
        max-width: 100%;
    }
    
    .footer-section {
        min-width: 100%;
        width: 100%;
    }
    
    .footer-bottom {
        padding: var(--spacing-md) 0 0;
    }
    
    .cta-feature {
        flex: 0 1 calc(50% - var(--spacing-md) / 2);
        max-width: calc(50% - var(--spacing-md) / 2);
    }
    
    .cta-social-proof {
        flex-direction: column;
        gap: var(--spacing-xs);
        text-align: center;
    }
    
    .cta-guarantee {
        font-size: 0.875rem;
    }
    
    .cta-feature {
        flex-direction: row;
        align-items: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .cta-feature-icon {
        font-size: 1.5rem;
    }
    
    .cta-feature-text {
        font-size: 0.9375rem;
        white-space: normal;
    }
    
    .cta-button {
        font-size: 1rem;
        padding: 16px 24px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .cta-features {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .cta-feature {
        flex-direction: row;
        align-items: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .cta-feature-icon {
        font-size: 1.25rem;
    }
    
    .cta-feature-text {
        font-size: 1rem;
    }
    
    .knowledge-icon {
        width: 56px;
        height: 56px;
    }
    
    .faq-question {
        font-size: 1rem;
        padding: var(--spacing-sm);
    }
    
    .faq-answer {
        padding: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 var(--spacing-sm) var(--spacing-sm);
        opacity: 1;
    }
    
    /* Hero notes for very small screens */
    .hero-note {
        gap: 0.08rem !important;
        padding: 0 !important;
    }
    
    .hero-note-item {
        font-size: 0.6rem !important;
        padding: 0.1rem 0.08rem !important;
        line-height: 1.3 !important;
        white-space: normal !important;
        word-break: break-word !important;
    }
}

@media (max-width: 375px) {
    .hero-note {
        gap: 0.3rem !important;
        padding: 0.35rem 0.5rem !important;
    }
    
    .hero-note-item {
        font-size: 0.65rem !important;
        padding: 0.15rem 0.25rem !important;
        line-height: 1.3 !important;
        white-space: normal !important;
        word-break: break-word !important;
    }
}

/* Blog Styles */
.blog-hero {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.blog-hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.blog-hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.blog-section {
    padding: var(--spacing-xl) 0;
    background: white;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.blog-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.blog-card-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-card-image-container {
    position: relative;
    width: 100%;
    padding-top: 60%; /* 16:10 aspect ratio */
    overflow: hidden;
    background: var(--background-light);
}

.blog-card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-image {
    transform: scale(1.05);
}

.blog-card-category {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.blog-card-date {
    color: var(--text-secondary);
}

.blog-card-read-time {
    color: var(--text-secondary);
}

.blog-card-read-time::before {
    content: "•";
    margin-right: var(--spacing-xs);
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-read-more {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9375rem;
    margin-top: auto;
}

.blog-load-more-container {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Blog Article Styles */
.blog-article {
    padding: var(--spacing-xl) 0;
    background: white;
}

.blog-article-header {
    max-width: 1000px;
    margin: 0 auto var(--spacing-sm);
    text-align: center;
}

.blog-article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.blog-article-category {
    background: var(--primary-color);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-article-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.15;
    letter-spacing: -0.03em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.blog-article-content {
    max-width: 1000px;
    margin: 0 auto;
    line-height: 1.8;
    color: var(--text-primary);
}

.blog-article-featured-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
    margin-top: 0;
    box-shadow: var(--shadow);
}

.blog-article-content h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.blog-article-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.blog-article-content p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.blog-article-content ul,
.blog-article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.blog-article-content li {
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
}

/* Breadcrumb Styles */
.breadcrumb {
    padding: var(--spacing-md) 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.breadcrumb-nav ol {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-nav li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-nav li:not(:last-child)::after {
    content: '/';
    color: #adb5bd;
    margin-left: var(--spacing-xs);
    font-weight: 400;
}

.breadcrumb-nav a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb-nav a:hover {
    color: #2e7d32;
    text-decoration: underline;
}

.breadcrumb-nav span[aria-current="page"] {
    color: var(--text-primary);
    font-weight: 500;
}

@media (max-width: 768px) {
    .breadcrumb {
        padding: var(--spacing-sm) 0;
    }
    
    .breadcrumb-nav {
        font-size: 0.875rem;
    }
}

.blog-article-content img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin: var(--spacing-lg) 0;
}

.blog-article-cta {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: 16px;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin: var(--spacing-xl) auto;
    max-width: 1000px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.15);
    border: 2px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.blog-article-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #34d399);
}

.blog-article-cta h3 {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    margin-top: 0;
    line-height: 1.3;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.blog-article-cta p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    margin-top: 0;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.blog-article-cta .btn {
    font-size: 1.125rem;
    padding: 18px 40px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(46, 125, 50, 0.3);
    transition: all 0.3s ease;
    margin-bottom: var(--spacing-sm);
}

.blog-article-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 125, 50, 0.4);
}

.blog-cta-notes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(46, 125, 50, 0.2);
}

.blog-cta-note-item {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.blog-cta-button-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Saldering Calculator Styles */
.saldering-calculator {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.15);
}

.calculator-title {
    margin-top: 0;
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.calculator-description {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 1rem;
}

.calculator-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.calculator-input-group {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid rgba(46, 125, 50, 0.2);
    transition: border-color 0.3s ease;
}

.calculator-input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.input-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    flex: 1;
}

.input-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.125rem;
    background: #E8F5E9;
    padding: 0.375rem 0.875rem;
    border-radius: 8px;
    min-width: 120px;
    text-align: right;
}

.calculator-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e0e0e0;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: var(--spacing-md) 0;
    transition: background 0.3s ease;
}

.calculator-slider:hover {
    background: #d0d0d0;
}

.calculator-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.3);
    transition: all 0.3s ease;
}

.calculator-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.4);
}

.calculator-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.3);
    transition: all 0.3s ease;
}

.calculator-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.4);
}

.calculator-slider::-moz-range-track {
    height: 8px;
    border-radius: 4px;
    background: #e0e0e0;
}

.input-range {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.calculator-results {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid var(--primary-color);
}

.results-title {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.result-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    background: white;
    border: 2px solid rgba(46, 125, 50, 0.2);
    transition: all 0.3s ease;
}

.result-line:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.1);
}

.result-line-label {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.result-line-label .result-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0;
}

.result-line-label .result-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
}

.result-line-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    margin-left: var(--spacing-md);
}

.result-line-positive {
    border-left: 4px solid var(--primary-color);
}

.result-line-positive .result-line-value {
    color: var(--primary-color);
}

.result-line-negative {
    border-left: 4px solid #d32f2f;
}

.result-line-negative .result-line-value {
    color: #d32f2f;
}

.result-line-highlight {
    border-left: 4px solid #F57C00;
    background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
    border-width: 2px;
    border-left-width: 4px;
}

.result-line-highlight .result-line-value {
    color: #F57C00;
    font-size: 1.75rem;
}

.result-card {
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    border: 2px solid transparent;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.result-card:hover {
    transform: translateY(-2px);
}

.result-card-positive {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-color: var(--primary-color);
}

.result-card-negative {
    background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
    border-color: #d32f2f;
}

.result-card-highlight {
    background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
    border-color: #F57C00;
    border-width: 3px;
}

.result-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.result-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.result-card-positive .result-value {
    color: var(--primary-color);
}

.result-card-negative .result-value {
    color: #d32f2f;
}

.result-card-highlight .result-value {
    color: #F57C00;
    font-size: 2rem;
}

.result-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* ISDE Calculator Styles (reuses saldering calculator styles) */
.isde-calculator {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.15);
}

.input-help-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.result-card-info {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    border-color: #2196F3;
}

.result-card-info .result-value {
    color: #2196F3;
}

.result-card-calculated {
    background: linear-gradient(135deg, #F3E5F5 0%, #E1BEE7 100%);
    border-color: #9C27B0;
}

.result-card-calculated .result-value {
    color: #9C27B0;
}

.max-notice {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: #FFF3E0;
    border-left: 4px solid #F57C00;
    border-radius: 4px;
    font-size: 0.875rem;
    color: #E65100;
    text-align: center;
}

/* Checklist Tool Styles */
.checklist-tool {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.15);
}

.checklist-questions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.checklist-question {
    background: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 2px solid rgba(46, 125, 50, 0.2);
    transition: all 0.3s ease;
}

.checklist-question:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.1);
}

.checklist-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-primary);
}

.checklist-checkbox {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--primary-color);
    flex-shrink: 0;
}

.checklist-text {
    flex: 1;
    font-weight: 500;
    line-height: 1.5;
}

.checklist-result {
    margin-top: var(--spacing-lg);
}

.checklist-result .result-card {
    max-width: 400px;
    margin: 0 auto;
}

/* Solar Production Calculator (reuses calculator styles) */
.solar-production-calculator {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.15);
}

@media (max-width: 768px) {
    .saldering-calculator,
    .isde-calculator {
        padding: var(--spacing-md);
    }
    
    .calculator-title {
        font-size: 1.5rem;
    }
    
    .input-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .input-value {
        width: 100%;
        text-align: left;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .result-line {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .result-line-value {
        margin-left: 0;
        width: 100%;
        text-align: left;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
    
    .result-card-highlight .result-value {
        font-size: 1.75rem;
    }
}

.blog-cta-social-proof {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: 0;
}

.blog-cta-avatars {
    display: flex;
    align-items: center;
    margin-right: var(--spacing-xs);
    flex-shrink: 0;
}

.blog-cta-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8125rem;
    margin-left: -8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
}

.blog-cta-avatar:first-child {
    margin-left: 0;
}

.blog-cta-social-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
    white-space: nowrap;
    flex-shrink: 0;
}

.blog-cta-social-text strong {
    color: var(--primary-color);
    font-weight: 700;
}

.blog-cta-guarantee {
    font-size: 0.9375rem;
    opacity: 0.9;
    margin: 0;
    color: var(--text-secondary);
}

.blog-cta-guarantee strong {
    font-weight: 700;
    opacity: 1;
    color: var(--text-primary);
}

.blog-cta-notes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(46, 125, 50, 0.2);
}

.blog-cta-note-item {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

/* Responsive Blog Styles */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog-hero-title {
        font-size: 2rem;
    }
    
    .blog-hero-subtitle {
        font-size: 1.125rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .blog-article-title {
        font-size: 2.25rem;
    }
    
    .blog-article-header {
        max-width: 95%;
    }
    
    .blog-article-content {
        max-width: 95%;
    }
    
    .blog-article-content h2 {
        font-size: 1.75rem;
    }
    
    .blog-article-content h3 {
        font-size: 1.25rem;
    }
    
    .blog-article-content p,
    .blog-article-content li {
        font-size: 1rem;
    }
    
    .blog-cta-social-proof {
        flex-direction: row;
        gap: var(--spacing-sm);
        flex-wrap: nowrap;
        justify-content: center;
    }
    
    .blog-cta-avatars {
        margin-right: var(--spacing-xs);
    }
    
    .blog-cta-social-text {
        white-space: normal;
        text-align: left;
    }
    
    .blog-cta-guarantee {
        font-size: 0.875rem;
        white-space: normal;
        text-align: left;
    }
    
    .blog-cta-notes {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .blog-cta-note-item {
        font-size: 0.875rem;
        white-space: normal;
    }
    
    .blog-article-cta {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .blog-article-cta h3 {
        font-size: 1.5rem;
    }
    
    .blog-article-cta p {
        font-size: 1rem;
    }
    
    .blog-article-cta .btn {
        font-size: 1rem;
        padding: 14px 28px;
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .blog-hero-title {
        font-size: 1.75rem;
    }
    
    .blog-hero-subtitle {
        font-size: 1rem;
    }
    
    .blog-article-title {
        font-size: 1.875rem;
    }
    
    .blog-article-cta h3 {
        font-size: 1.375rem;
    }
    
    .blog-article-cta {
        padding: var(--spacing-md);
    }
    
    .blog-cta-social-proof {
        flex-direction: column;
        align-items: center;
    }
    
    .blog-cta-avatars {
        margin-right: 0;
        margin-bottom: var(--spacing-xs);
    }
    
    .blog-cta-guarantee {
        text-align: center;
    }
    
    .blog-cta-notes {
        gap: var(--spacing-xs);
    }
    
    .blog-cta-note-item {
        font-size: 0.8125rem;
    }
}

/* 404 Error Page Styles */
.error-404-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
}

.error-404-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-xl);
}

.error-404-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.error-404-icon {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.error-404-title {
    font-size: 6rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0;
    line-height: 1;
    letter-spacing: -0.02em;
}

.error-404-subtitle {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.error-404-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.error-404-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.error-404-actions .btn {
    min-width: 200px;
}

.error-404-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.error-404-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.error-404-links a:hover {
    color: var(--primary-color-dark);
    text-decoration: underline;
}

.error-404-links span {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .error-404-header {
        gap: var(--spacing-sm);
    }
    
    .error-404-icon {
        width: 60px;
        height: 60px;
    }
    
    .error-404-icon svg {
        width: 40px;
        height: 40px;
    }
    
    .error-404-title {
        font-size: 4rem;
    }
    
    .error-404-subtitle {
        font-size: 1.5rem;
    }
    
    .error-404-text {
        font-size: 1rem;
    }
    
    .error-404-actions {
        flex-direction: column;
    }
    
    .error-404-actions .btn {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .error-404-header {
        gap: var(--spacing-sm);
    }
    
    .error-404-icon {
        width: 60px;
        height: 60px;
    }
    
    .error-404-icon svg {
        width: 40px;
        height: 40px;
    }
    
    .error-404-title {
        font-size: 4rem;
    }
    
    .error-404-subtitle {
        font-size: 1.5rem;
    }
    
    .error-404-text {
        font-size: 1rem;
    }
    
    .error-404-actions {
        flex-direction: column;
    }
    
    .error-404-actions .btn {
        width: 100%;
        min-width: auto;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .hero {
        background: white;
        padding: 1rem 0;
    }
}