:root {
    --primary-color: #6B9BD1;
    --primary-dark: #5A8BC4;
    --primary-light: #E8F2FA;
    --secondary-color: #7FB3A8;
    --text-dark: #2C3E50;
    --text-light: #6C757D;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E0E6ED;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Language Switcher */
.lang-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 5px;
    background: var(--bg-white);
    padding: 5px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-dark);
    cursor: pointer;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: var(--primary-light);
}

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

/* Navigation */
.navbar {
    padding: 20px 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
    position: relative;
}

.hamburger-menu span {
    width: 100%;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    height: 40px;
}

.logo-img {
    height: 100%;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
    padding: 5px 0;
}

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

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

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

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.scroll-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.scroll-to-top svg {
    width: 20px;
    height: 20px;
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #F0F7FD 100%);
    text-align: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

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

/* Section Styling */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 60px;
}

/* Benefits Section */
.benefits {
    background: var(--bg-white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.benefit-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-white);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.benefit-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
}

/* Statistics Section */
.statistics {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.statistics-challenge {
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f2fa 100%);
}

.statistics-challenge::before {
    background: radial-gradient(circle at 20% 50%, rgba(107, 157, 209, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(127, 179, 168, 0.05) 0%, transparent 50%);
}

.statistics-advantage {
    background: linear-gradient(135deg, #e8f2fa 0%, #f0f7fd 100%);
}

.statistics-advantage::before {
    background: radial-gradient(circle at 20% 50%, rgba(107, 157, 209, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(127, 179, 168, 0.08) 0%, transparent 50%);
}

.statistics .container {
    position: relative;
    z-index: 1;
}

.section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 50px;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.statistics-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.stat-card {
    text-align: center;
    padding: 35px 25px;
    background: var(--bg-white);
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    opacity: 0;
    transform: translateY(30px);
}

.stat-card.visible {
    animation: fadeInUp 0.6s ease forwards;
}

.stat-card.visible:nth-child(1) {
    animation-delay: 0.1s;
}

.stat-card.visible:nth-child(2) {
    animation-delay: 0.2s;
}

.stat-card.visible:nth-child(3) {
    animation-delay: 0.3s;
}

.stat-card.visible:nth-child(4) {
    animation-delay: 0.4s;
}

.stat-card.visible:nth-child(5) {
    animation-delay: 0.5s;
}

.stat-card.visible:nth-child(6) {
    animation-delay: 0.6s;
}

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

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 30px rgba(107, 157, 209, 0.2);
    border-color: var(--primary-color);
}

.stat-card-large {
    grid-column: span 1;
}

@media (min-width: 768px) {
    .stat-card-large {
        grid-column: span 2;
    }
}

.stat-card-highlight {
    background: linear-gradient(135deg, var(--primary-light) 0%, rgba(127, 179, 168, 0.1) 100%);
    border-color: var(--primary-color);
    border-width: 2px;
}

.stat-card-highlight .stat-number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-icon {
    font-size: 40px;
    margin-bottom: 15px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.stat-card:nth-child(2) .stat-icon {
    animation-delay: 0.2s;
}

.stat-card:nth-child(3) .stat-icon {
    animation-delay: 0.4s;
}

.stat-card:nth-child(4) .stat-icon {
    animation-delay: 0.6s;
}

.stat-card:nth-child(5) .stat-icon {
    animation-delay: 0.8s;
}

.stat-card:nth-child(6) .stat-icon {
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.stat-number-wrapper {
    position: relative;
    margin-bottom: 20px;
    padding-bottom: 15px;
}

.stat-number {
    font-size: 56px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: inline-block;
    transition: transform 0.3s ease;
    position: relative;
}

.stat-card:hover .stat-number {
    transform: scale(1.1);
}

.stat-card-large .stat-number {
    font-size: 72px;
}

.stat-progress {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    margin-top: 15px;
    overflow: hidden;
    position: relative;
}

.stat-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    width: 0%;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

.stat-progress-positive {
    background: linear-gradient(90deg, var(--secondary-color), #5FD3A3);
}

.stat-comparison {
    margin-top: 15px;
}

.comparison-label {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-light);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 10px;
}

.stat-timeline {
    margin-top: 15px;
    position: relative;
    height: 6px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.timeline-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.timeline-bar.animate {
    width: 83.33%; /* 2.5 out of 3 months = 83.33% */
}

.timeline-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.stat-description {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.7;
    margin-top: 10px;
}


.solution-intro {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    padding: 50px 40px;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--primary-light) 100%);
    border-radius: 20px;
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 25px rgba(107, 157, 209, 0.15);
    position: relative;
    overflow: hidden;
}

.solution-intro::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(107, 157, 209, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.solution-intro h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.solution-intro p {
    font-size: 19px;
    color: var(--text-dark);
    line-height: 1.9;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

/* Services Section */
.services {
    background: var(--bg-white);
}

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

.service-item {
    padding: 30px;
    background: var(--bg-white);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.service-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(5px);
}

.service-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.service-item p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* Target Section */
.target {
    background: var(--bg-white);
    text-align: center;
}

.target-description {
    font-size: 18px;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.contact .section-title {
    color: white;
}

.contact-description {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.contact-info {
    margin-top: 30px;
}

.contact-link {
    display: inline-block;
    padding: 16px 40px;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Cost Calculator Section */
.calculator {
    background: var(--bg-white);
    padding: 100px 0;
}

.calculator-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .calculator {
        padding: 60px 0;
    }

    .calculator-intro {
        font-size: 16px;
        margin-bottom: 35px;
        padding: 0 10px;
    }

    .calculator-wrapper {
        padding: 0 10px;
    }
}

.calculator-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

/* Floating Savings - Mobile Only */
.savings-floating {
    display: none;
}

@media (max-width: 768px) {
    .savings-floating {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        position: sticky;
        top: 70px;
        z-index: 100;
        background: linear-gradient(135deg, rgba(127, 179, 168, 0.95) 0%, rgba(95, 211, 163, 0.95) 100%);
        backdrop-filter: blur(10px);
        padding: 10px 14px;
        border-radius: 12px;
        margin-bottom: 20px;
        box-shadow: 0 4px 20px rgba(127, 179, 168, 0.3);
        border: 2px solid rgba(255, 255, 255, 0.3);
    }

    .savings-floating-badge {
        font-size: 11px;
        font-weight: 700;
        color: white;
        white-space: nowrap;
        opacity: 0.95;
    }

    .savings-floating-amount {
        font-size: 18px;
        font-weight: 800;
        color: white;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
        letter-spacing: -0.5px;
        flex: 1;
        text-align: center;
        line-height: 1.2;
    }

    .savings-floating-percent {
        font-size: 14px;
        font-weight: 700;
        color: white;
        background: rgba(255, 255, 255, 0.25);
        padding: 5px 10px;
        border-radius: 18px;
        white-space: nowrap;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }
}

.project-size-selector {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.size-btn {
    padding: 12px 30px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-dark);
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.size-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

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

.project-details {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
}

@media (max-width: 768px) {
    .project-details {
        gap: 20px;
        padding: 15px;
        margin-bottom: 25px;
    }
}

.detail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.detail-label {
    font-size: 14px;
    color: var(--text-light);
}

.detail-value {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
}

.distribution-control {
    margin-bottom: 40px;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 12px;
}

@media (max-width: 768px) {
    .distribution-control {
        padding: 20px 15px;
        margin-bottom: 30px;
    }
}

.slider-label {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
}

.slider-container {
    position: relative;
    margin-bottom: 15px;
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.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 6px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.slider::-moz-range-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}

.distribution-value {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .distribution-value {
        font-size: 28px;
    }
}

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

@media (max-width: 768px) {
    .cost-comparison {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 25px;
    }

    .savings {
        display: none;
    }
}

.cost-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .cost-card {
        padding: 20px;
    }
}

.cost-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.cost-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 25px;
    text-align: center;
}

@media (max-width: 768px) {
    .cost-card h3 {
        font-size: 18px;
        margin-bottom: 18px;
    }
}

.local-cost {
    border-color: var(--border-color);
}

.distributed-cost {
    border-color: var(--primary-color);
}

.savings {
    border-color: var(--secondary-color);
    border-width: 3px;
    background: linear-gradient(135deg, rgba(127, 179, 168, 0.15) 0%, rgba(95, 211, 163, 0.1) 100%);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(127, 179, 168, 0.2);
}

.savings::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(127, 179, 168, 0.1) 0%, transparent 70%);
    animation: pulse-savings 4s ease-in-out infinite;
}

@keyframes pulse-savings {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.savings-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary-color), #5FD3A3);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    box-shadow: 0 4px 12px rgba(127, 179, 168, 0.3);
    letter-spacing: 0.5px;
}

.savings h3 {
    margin-bottom: 25px;
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .savings h3 {
        margin-bottom: 18px;
        font-size: 18px;
    }
}

.cost-breakdown {
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .cost-breakdown {
        margin-bottom: 15px;
    }
}

.cost-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .cost-item {
        margin-bottom: 12px;
        padding-bottom: 12px;
        font-size: 14px;
    }
}

.cost-line {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 16px;
    color: var(--text-light);
}

.cost-line:last-child {
    border-bottom: none;
}

.cost-line span:last-child {
    font-weight: 600;
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .cost-line {
        font-size: 14px;
        padding: 8px 0;
    }
}

.total-cost {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .total-cost {
        font-size: 20px;
        padding-top: 15px;
    }
}

.savings-amount-wrapper {
    position: relative;
    z-index: 1;
}

.savings-amount {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--secondary-color), #5FD3A3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 15px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(127, 179, 168, 0.1);
    letter-spacing: -1px;
}

.savings-percent-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary-color), #5FD3A3);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    width: 100%;
    box-shadow: 0 6px 20px rgba(127, 179, 168, 0.3);
    letter-spacing: 1px;
    animation: scale-in 0.5s ease-out;
}

@media (max-width: 768px) {
    .savings-percent-badge {
        font-size: 22px;
        padding: 10px 20px;
    }
}

@keyframes scale-in {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.savings:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 35px rgba(127, 179, 168, 0.3);
}

@media (max-width: 768px) {
    .cost-comparison {
        grid-template-columns: 1fr;
    }

    .project-details {
        flex-direction: column;
        gap: 15px;
    }

    .detail-item {
        gap: 5px;
    }

    .detail-label {
        font-size: 12px;
    }

    .detail-value {
        font-size: 18px;
    }

    .distribution-value {
        font-size: 28px;
    }
}

/* Footnotes Section */
.footnotes {
    background: var(--bg-light);
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.footnotes-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: left;
}

.footnotes-list {
    max-width: 900px;
}

.footnote-item {
    display: flex;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.footnote-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.footnote-number {
    font-weight: 700;
    color: var(--primary-color);
    margin-right: 15px;
    font-size: 18px;
    min-width: 25px;
}

.footnote-text {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
    flex: 1;
}

.footnote-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    margin-left: 2px;
    transition: color 0.3s ease;
}

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

.stat-description sup {
    font-size: 0.7em;
    vertical-align: super;
    line-height: 0;
}

.stat-description sup a {
    text-decoration: none;
}

/* Footnote links in privacy section */
.privacy-intro p sup,
.privacy-card p sup {
    font-size: 0.9em;
    vertical-align: super;
    line-height: 0;
    margin-left: 4px;
    display: inline-block;
}

.privacy-intro p sup a,
.privacy-card p sup a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 700;
    padding: 3px 6px;
    border-radius: 4px;
    transition: all 0.2s ease;
    background-color: rgba(107, 157, 209, 0.15);
    display: inline-block;
    border: 1px solid rgba(107, 157, 209, 0.3);
    min-width: 20px;
    text-align: center;
}

.privacy-intro p sup a:hover,
.privacy-card p sup a:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-color: var(--primary-color);
    transform: scale(1.1);
}

/* Footnote Popup */
.footnote-popup {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.footnote-popup.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-content {
    background-color: var(--bg-white);
    margin: auto;
    padding: 30px;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

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

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

.popup-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 32px;
    font-weight: 300;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

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

.popup-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.popup-text {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 25px;
}

.popup-link {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
}

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

/* Data Privacy & Security Section */
.data-privacy {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.privacy-concerns {
    max-width: 1200px;
    margin: 0 auto;
}

.privacy-intro {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 16px;
    margin-bottom: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--primary-color);
}

.privacy-intro h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.privacy-intro p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
}

.privacy-solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.privacy-card {
    background: var(--bg-white);
    padding: 35px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.privacy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.privacy-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.privacy-card h4 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.privacy-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .data-privacy {
        padding: 60px 0;
    }

    .privacy-intro {
        padding: 25px;
        margin-bottom: 35px;
    }

    .privacy-intro h3 {
        font-size: 24px;
    }

    .privacy-intro p {
        font-size: 16px;
    }

    .privacy-solutions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .privacy-card {
        padding: 25px;
    }

    .privacy-icon {
        font-size: 40px;
        margin-bottom: 15px;
    }

    .privacy-card h4 {
        font-size: 20px;
    }

    .privacy-card p {
        font-size: 15px;
    }
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

    .benefits-grid,
    .services-grid,
    .statistics-content {
        grid-template-columns: 1fr;
    }

    .stat-card-large {
        grid-column: span 1;
    }

    .stat-number {
        font-size: 48px;
    }

    .stat-card-large .stat-number {
        font-size: 56px;
    }

    .stat-progress {
        height: 6px;
    }

    .comparison-label {
        font-size: 12px;
        padding: 6px 16px;
    }

    .stat-description {
        font-size: 15px;
    }

    .stat-icon {
        font-size: 36px;
    }

    .solution-intro {
        padding: 30px 20px;
    }

    .solution-intro h3 {
        font-size: 24px;
    }

    .solution-intro p {
        font-size: 16px;
    }

    .footnotes {
        padding: 40px 0;
    }

    .footnotes-title {
        font-size: 24px;
    }

    .footnote-text {
        font-size: 14px;
    }

    section {
        padding: 60px 0;
    }

    .lang-switcher {
        top: 10px;
        right: 10px;
    }

    .hamburger-menu {
        display: flex;
    }

    .navbar .container {
        display: grid;
        grid-template-columns: 30px 1fr 60px;
        align-items: center;
        gap: 10px;
        padding: 0 15px;
    }

    .navbar {
        padding: 15px 0;
    }

    .logo {
        justify-content: center;
        height: 28px;
        grid-column: 2;
    }

    .logo-img {
        max-width: 110px;
        height: 100%;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px 30px 30px 30px;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        gap: 0;
        z-index: 99;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

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

    .nav-menu a {
        display: block;
        padding: 15px 0;
        font-size: 16px;
        width: 100%;
    }

    .nav-menu a::after {
        display: none;
    }

    /* Overlay for mobile menu */
    /* Mobile menu overlay */
    .nav-menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        z-index: 98;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .nav-menu-overlay.active {
        display: block;
        opacity: 1;
    }

    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0 50px;
    }

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

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

    .cta-button {
        padding: 14px 30px;
        font-size: 16px;
    }
}