/* ==========================================================================
   VASPERO - Strona dla Domu - Dodatkowe Style
   ========================================================================== */

/* Problem Section */
.section-problem {
    background-color: var(--color-gray-50);
}

.section-tag-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

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

.problem-text {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: var(--spacing-6);
}

.problem-text p {
    margin-bottom: var(--spacing-4);
}

/* ==========================================================================
   RCE Price Chart - Premium Interactive Design
   ========================================================================== */

.chart-container {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-5);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-8);
    overflow: hidden;
}

@media (max-width: 768px) {
    .chart-container {
        margin-bottom: var(--spacing-10);
    }
}

.chart-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
    .chart-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.chart-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
}

.chart-legend {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.legend-item::before {
    content: '';
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

.legend-high::before {
    background-color: #22c55e;
}

.legend-low::before {
    background-color: #ef4444;
}

.chart-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* Scroll hint gradient */
    position: relative;
}

/* Scroll indicator for mobile */
.chart-wrapper::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    background: linear-gradient(to left, rgba(255,255,255,0.9), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
    .chart-wrapper::after {
        opacity: 1;
    }
    
    .chart-wrapper::-webkit-scrollbar {
        height: 6px;
    }
    
    .chart-wrapper::-webkit-scrollbar-track {
        background: #f1f1f1;
        border-radius: 3px;
    }
    
    .chart-wrapper::-webkit-scrollbar-thumb {
        background: #F2B708;
        border-radius: 3px;
    }
}

/* Chart SVG - always readable */
.rce-chart {
    height: auto;
    min-height: 300px;
    display: block;
}

/* Desktop: full width responsive */
@media (min-width: 769px) {
    .rce-chart {
        width: 100%;
    }
}

/* Mobile: fixed min-width for readability, enables scroll */
@media (max-width: 768px) {
    .rce-chart {
        width: 700px;
        min-width: 700px;
    }
}

/* ==========================================================================
   Chart Line - Scroll-triggered Animation
   ========================================================================== */

.chart-line {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    transition: filter 0.3s ease;
    filter: drop-shadow(0 0 0 transparent);
}

/* Animation triggers only when container has .chart-animated class */
.chart-container.chart-animated .chart-line {
    animation: drawLine 2.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

/* Hover glow effect on chart line */
.rce-chart:hover .chart-line {
    filter: drop-shadow(0 0 8px rgba(242, 183, 8, 0.6));
}

/* ==========================================================================
   Chart Area - Fade-in Animation
   ========================================================================== */

.chart-area {
    opacity: 0;
}

.chart-container.chart-animated .chart-area {
    animation: fadeInArea 1s ease-out 2s forwards;
}

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

/* ==========================================================================
   Chart Markers - Subtle Slide-up Animation
   ========================================================================== */

.chart-marker-record,
.chart-marker-critical,
.chart-marker-bottom {
    opacity: 0;
    transform: translateY(12px);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* REKORD marker - appears when line reaches this point */
.chart-container.chart-animated .chart-marker-record {
    animation: markerSlideUp 0.6s ease-out 0.5s forwards;
}

/* CRITICAL marker */
.chart-container.chart-animated .chart-marker-critical {
    animation: markerSlideUp 0.6s ease-out 1.0s forwards;
}

/* BOTTOM marker */
.chart-container.chart-animated .chart-marker-bottom {
    animation: markerSlideUp 0.6s ease-out 2.0s forwards;
}

@keyframes markerSlideUp {
    0% {
        opacity: 0;
        transform: translateY(12px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Marker hover effects - subtle */
.chart-marker-record:hover,
.chart-marker-critical:hover,
.chart-marker-bottom:hover {
    transform: translateY(-2px);
    cursor: pointer;
}

/* ==========================================================================
   Chart Annotations - Subtle Fade-in Animation
   ========================================================================== */

.chart-annotation {
    opacity: 0;
    transform: translateY(8px);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Annotation for REKORD - appears after marker */
.chart-container.chart-animated .chart-marker-record + .chart-annotation {
    animation: annotationFadeIn 0.5s ease-out 0.7s forwards;
}

/* Annotation for CRITICAL - appears after marker */
.chart-container.chart-animated .chart-marker-critical + .chart-annotation {
    animation: annotationFadeIn 0.5s ease-out 1.2s forwards;
}

/* Annotation for BOTTOM - appears after marker */
.chart-container.chart-animated .chart-marker-bottom + .chart-annotation {
    animation: annotationFadeIn 0.5s ease-out 2.2s forwards;
}

@keyframes annotationFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Annotation hover effects - subtle */
.chart-annotation:hover {
    opacity: 0.9;
    cursor: pointer;
}

/* ==========================================================================
   Chart Responsiveness - Mobile Optimization
   ========================================================================== */

/* Mobile styles */
@media (max-width: 768px) {
    .chart-container {
        padding: var(--spacing-4);
        padding-bottom: var(--spacing-3);
    }
    
    .chart-header {
        margin-bottom: var(--spacing-4);
    }
    
    .chart-header h3 {
        font-size: 0.9375rem;
        line-height: 1.4;
    }
    
    .chart-legend {
        gap: var(--spacing-3);
    }
    
    .legend-item {
        font-size: 0.75rem;
    }
    
    /* Mobile scroll hint text */
    .chart-wrapper::before {
        content: '← Przewiń, aby zobaczyć cały wykres →';
        display: block;
        text-align: center;
        font-size: 0.6875rem;
        color: #9ca3af;
        padding: 6px 0;
        margin-bottom: 8px;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .chart-container {
        padding: var(--spacing-3);
        border-radius: var(--radius-xl);
    }
    
    .chart-header h3 {
        font-size: 0.8125rem;
        line-height: 1.3;
    }
    
    .legend-item {
        font-size: 0.6875rem;
    }
    
    .legend-item::before {
        width: 8px;
        height: 8px;
    }
    
    .chart-wrapper::before {
        font-size: 0.625rem;
    }
}

/* ==========================================================================
   Reduced Motion Support
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .chart-line,
    .chart-area,
    .chart-marker-record,
    .chart-marker-critical,
    .chart-marker-bottom,
    .chart-annotation {
        animation: none !important;
        opacity: 1 !important;
        transform: translateY(0) !important;
        stroke-dashoffset: 0 !important;
    }
}

/* Problem Conclusion */
.problem-conclusion {
    display: flex;
    gap: var(--spacing-6);
    background: linear-gradient(135deg, #fef2f2 0%, #fff7ed 100%);
    border-left: 4px solid #ef4444;
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.conclusion-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ef4444;
    color: white;
    border-radius: var(--radius-full);
}

.conclusion-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-3);
}

.conclusion-content p {
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: var(--spacing-3);
}

.conclusion-content .highlight {
    color: #ef4444;
    font-weight: 700;
}

.conclusion-question {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-black);
    margin-top: var(--spacing-4);
}

/* Solution Section */
.solution-intro {
    max-width: 700px;
    margin: 0 auto var(--spacing-10);
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
}

.method-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--color-yellow);
}

.method-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.method-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-yellow-light);
    color: var(--color-yellow-dark);
    border-radius: var(--radius-xl);
}

.method-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-black);
}

.method-desc {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.7;
}

.method-steps {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.method-steps li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-yellow);
    color: var(--color-black);
    font-weight: 700;
    border-radius: var(--radius-full);
}

.step-text {
    color: var(--color-gray-700);
    font-size: var(--font-size-base);
    line-height: 1.6;
    padding-top: var(--spacing-1);
}

/* Scenarios Section */
.scenarios-grid {
    display: grid;
    gap: var(--spacing-6);
}

@media (min-width: 1024px) {
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.scenario-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

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

.scenario-a {
    border-color: var(--color-yellow);
}

.scenario-b {
    border-color: #22c55e;
}

.scenario-header {
    margin-bottom: var(--spacing-6);
}

.scenario-badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-3);
}

.scenario-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-2);
}

.scenario-system {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background: var(--color-gray-900);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
}

.scenario-problem,
.scenario-solution {
    margin-bottom: var(--spacing-6);
}

.scenario-problem h4,
.scenario-solution h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
}

.scenario-problem h4 {
    color: #dc2626;
}

.scenario-solution h4 {
    color: #16a34a;
}

.scenario-problem p,
.scenario-solution p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

.solution-name {
    display: inline-block;
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-yellow);
    color: var(--color-black);
    font-size: var(--font-size-lg);
    font-weight: 700;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
}

.solution-name-alt {
    background: #22c55e;
    color: white;
}

.scenario-benefits {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-4);
}

.scenario-benefits li {
    position: relative;
    padding-left: var(--spacing-6);
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-700);
    line-height: 1.6;
}

.scenario-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #16a34a;
    font-weight: 700;
}

.scenario-effect {
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    color: var(--color-gray-700);
    line-height: 1.6;
}

.scenario-effect strong {
    color: var(--color-black);
}

/* Dark Section - Why Vaspero */
.section-dark {
    background: var(--color-black);
}

.section-dark .section-tag {
    background-color: rgba(242, 183, 8, 0.15);
    color: var(--color-yellow);
    border: 1px solid rgba(242, 183, 8, 0.3);
}

.section-title-light {
    color: var(--color-white);
}

.section-desc-light {
    color: var(--color-gray-400);
}

.features-grid {
    display: grid;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card-dark {
    position: relative;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-5);
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
}

.feature-card-dark::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
        300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(242, 183, 8, 0.12) 0%,
        transparent 60%
    );
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
    z-index: 0;
}

.feature-card-dark:hover::before {
    opacity: 1;
}

.feature-card-dark:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(242, 183, 8, 0.35);
    transform: translateY(-4px);
}

.feature-card-dark > * {
    position: relative;
    z-index: 1;
}

.feature-icon-dark {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(242, 183, 8, 0.15);
    color: var(--color-yellow);
    border-radius: var(--radius-xl);
}

.feature-card-dark h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-3);
}

.feature-card-dark p {
    color: var(--color-gray-400);
    line-height: 1.6;
}

/* CTA Section Home */
.section-cta-home {
    background: linear-gradient(180deg, #111110 0%, #1a1a18 40%, #111110 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.section-cta-home::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(242, 183, 8, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content-home {
    display: grid;
    gap: var(--spacing-8);
    align-items: center;
}

@media (min-width: 1024px) {
    .cta-content-home {
        grid-template-columns: 1fr 1fr;
    }
}

.cta-urgency {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(242, 183, 8, 0.1);
    color: var(--color-yellow);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-5);
}

.cta-text-home h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
    margin-bottom: var(--spacing-5);
}

.cta-text-home h2 .text-gradient {
    background: linear-gradient(135deg, var(--color-yellow), var(--color-yellow-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-text-home p {
    color: var(--color-gray-400);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: var(--spacing-4);
}

.cta-text-home p strong {
    color: var(--color-white);
}

.section-cta-home .cta-promise {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: rgba(242, 183, 8, 0.06);
    border: 1px solid rgba(242, 183, 8, 0.12);
    border-left: 3px solid rgba(242, 183, 8, 0.4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

.section-cta-home .cta-form-wrapper {
    padding: clamp(1.25rem, 2.5vh, 1.75rem);
}

.section-cta-home .form-note {
    text-align: center;
    margin-top: var(--spacing-2);
    font-size: var(--font-size-xs);
}

/* ==========================================================================
   Battery Storage Section
   ========================================================================== */

.section-battery {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

/* Season Modes Grid */
.season-modes-grid {
    display: grid;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
}

@media (min-width: 1024px) {
    .season-modes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Season Card */
.season-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

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

/* Summer Card */
.season-summer {
    border-top: 4px solid #f59e0b;
}

.season-summer .season-header {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.season-summer .season-icon {
    background: #f59e0b;
    color: white;
}

.season-summer .season-label {
    color: #d97706;
}

/* Winter Card */
.season-winter {
    border-top: 4px solid #3b82f6;
}

.season-winter .season-header {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}

.season-winter .season-icon {
    background: #3b82f6;
    color: white;
}

.season-winter .season-label {
    color: #1d4ed8;
}

/* Season Header */
.season-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
}

.season-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    flex-shrink: 0;
}

.season-title {
    flex: 1;
}

.season-label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-1);
}

.season-title h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin: 0;
}

/* Season Content */
.season-content {
    padding: var(--spacing-6);
}

.season-content > p {
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-5);
}

/* Benefit Items */
.benefit-item {
    display: flex;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.benefit-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-yellow-light);
    color: var(--color-yellow-dark);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.benefit-text {
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.benefit-text strong {
    color: var(--color-black);
}

/* Season Result */
.season-result {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: linear-gradient(135deg, rgba(242, 183, 8, 0.1) 0%, rgba(242, 183, 8, 0.05) 100%);
    border-left: 3px solid var(--color-yellow);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-4);
}

.result-label {
    font-weight: 600;
    color: var(--color-yellow-dark);
    font-size: var(--font-size-sm);
}

.result-value {
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
}

/* Arbitrage Chart */
.arbitrage-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    min-height: 180px;
}

.arbitrage-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80px;
    position: relative;
}

.arbitrage-bar .bar-fill {
    width: 100%;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: height 0.5s ease;
}

.arbitrage-night .bar-fill {
    background: linear-gradient(180deg, #3b82f6 0%, #1d4ed8 100%);
}

.arbitrage-day .bar-fill {
    background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
}

.bar-label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-black);
    margin-top: var(--spacing-2);
}

.bar-price {
    font-size: 10px;
    color: var(--color-gray-500);
}

.bar-time {
    font-size: 9px;
    color: var(--color-gray-400);
}

.arbitrage-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-yellow-dark);
    padding-bottom: var(--spacing-8);
}

.arbitrage-arrow span {
    font-size: 9px;
    color: var(--color-gray-500);
    text-align: center;
    max-width: 80px;
    margin-top: var(--spacing-1);
}

/* Backup Feature Box */
.backup-feature {
    display: flex;
    gap: var(--spacing-6);
    background: linear-gradient(135deg, #1d1d1b 0%, #2d2d2b 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-8);
    position: relative;
    overflow: hidden;
}

.backup-feature::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(242, 183, 8, 0.15) 0%, transparent 70%);
}

.backup-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-yellow);
    color: var(--color-black);
    border-radius: var(--radius-xl);
    flex-shrink: 0;
}

.backup-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.backup-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-yellow);
    margin-bottom: var(--spacing-3);
}

.backup-content > p {
    color: var(--color-gray-300);
    line-height: 1.7;
    margin-bottom: var(--spacing-4);
}

.backup-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.backup-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-size: var(--font-size-sm);
}

.backup-item svg {
    color: #22c55e;
}

.backup-note {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.backup-note strong {
    color: var(--color-yellow);
}

@media (max-width: 768px) {
    .backup-feature {
        flex-direction: column;
        text-align: center;
    }
    
    .backup-icon {
        margin: 0 auto;
    }
    
    .backup-features {
        justify-content: center;
    }
}

/* Battery Stats */
.battery-stats {
    margin-bottom: var(--spacing-6);
}

.stats-title {
    text-align: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-8);
}

.stats-grid {
    display: grid;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.stat-card {
    text-align: center;
    padding: var(--spacing-5);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-yellow-light);
    color: var(--color-yellow-dark);
    border-radius: var(--radius-xl);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-black);
    margin-bottom: var(--spacing-2);
}

.stat-label {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* Battery CTA */
.battery-cta {
    text-align: center;
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--color-yellow-light) 0%, rgba(242, 183, 8, 0.1) 100%);
    border-radius: var(--radius-2xl);
    border: 2px dashed var(--color-yellow);
}

.battery-cta .cta-text {
    font-size: var(--font-size-xl);
    color: var(--color-black);
    margin-bottom: var(--spacing-6);
}

.battery-cta .btn {
    display: inline-flex;
}

/* ==========================================================================
   COMPREHENSIVE MOBILE RESPONSIVENESS
   ========================================================================== */

/* Small screens (max 480px) */
@media (max-width: 480px) {
    /* Hero Section */
    .hero-home {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: var(--spacing-8);
    }
    
    .hero-content-home {
        padding-top: var(--spacing-6);
        padding-bottom: var(--spacing-6);
    }
    
    .hero-title-home {
        font-size: 1.75rem;
        line-height: 1.2;
    }
    
    .hero-subtitle-home {
        font-size: var(--font-size-base);
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-3);
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Section spacing */
    .section {
        padding: var(--spacing-10) 0;
    }
    
    .section-header {
        margin-bottom: var(--spacing-6);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-desc {
        font-size: var(--font-size-base);
    }
    
    /* Chart container - keep margin-bottom for spacing */
    .chart-container {
        padding: var(--spacing-4);
        margin-left: calc(-1 * var(--spacing-4));
        margin-right: calc(-1 * var(--spacing-4));
        margin-bottom: var(--spacing-10) !important;
        border-radius: var(--radius-lg);
    }
    
    .chart-wrapper {
        overflow-x: auto;
        margin: 0 calc(-1 * var(--spacing-2));
    }
    
    .chart-wrapper svg {
        min-width: 500px;
    }
    
    .chart-legend {
        flex-wrap: wrap;
        gap: var(--spacing-2);
    }
    
    .legend-item {
        font-size: var(--font-size-xs);
    }
    
    /* Problem text */
    .problem-text {
        font-size: var(--font-size-base);
    }
    
    /* Scenarios */
    .scenario-card {
        padding: var(--spacing-5);
    }
    
    .scenario-title {
        font-size: var(--font-size-lg);
    }
    
    .solution-item {
        padding: var(--spacing-3);
    }
    
    /* Season modes */
    .season-card {
        padding: var(--spacing-5);
    }
    
    .season-header h3 {
        font-size: var(--font-size-lg);
    }
    
    .season-features {
        gap: var(--spacing-3);
    }
    
    .feature-item {
        padding: var(--spacing-3);
    }
    
    /* Battery section */
    .battery-stats {
        margin-bottom: var(--spacing-4);
    }
    
    .stats-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-5);
    }
    
    .stat-card {
        padding: var(--spacing-4);
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
    }
    
    .stat-value {
        font-size: var(--font-size-2xl);
    }
    
    .battery-cta {
        padding: var(--spacing-4);
    }
    
    .battery-cta .cta-text {
        font-size: var(--font-size-base);
    }
    
    .battery-cta .btn {
        width: 100%;
        font-size: var(--font-size-sm);
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    /* Features grid (dark section) */
    .features-grid {
        gap: var(--spacing-4);
    }
    
    .feature-card-dark {
        padding: var(--spacing-5);
    }
    
    .feature-icon-dark {
        width: 48px;
        height: 48px;
    }
    
    .feature-card-dark h3 {
        font-size: var(--font-size-base);
    }
    
    /* CTA Section */
    .cta-content-home {
        gap: var(--spacing-6);
    }
    
    .cta-urgency {
        font-size: var(--font-size-xs);
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .cta-text-home h2 {
        font-size: 1.5rem;
    }
    
    .cta-text-home p {
        font-size: var(--font-size-base);
    }
    
    .cta-promise {
        padding: var(--spacing-3);
        font-size: var(--font-size-sm);
    }
    
    /* Form - Mobile Fix */
    .section-cta-home .cta-form-wrapper {
        padding: var(--spacing-3);
        max-width: 100%;
        margin: 0;
    }
    
    .section-cta-home .cta-form {
        max-width: 100%;
    }
    
    .form-title {
        font-size: var(--font-size-base);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    /* CTA text fix */
    .cta-text-home {
        max-width: 100%;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .cta-content-home {
        max-width: 100%;
        overflow: hidden;
    }
    
    /* FAQ Section */
    .faq-item {
        margin-bottom: var(--spacing-3);
    }
    
    .faq-question {
        padding: var(--spacing-4);
        font-size: var(--font-size-sm);
    }
    
    .faq-answer {
        padding: var(--spacing-4);
        font-size: var(--font-size-sm);
    }
    
    /* Backup feature */
    .backup-feature {
        padding: var(--spacing-4);
    }
    
    .backup-icon {
        width: 48px;
        height: 48px;
    }
    
    .backup-title {
        font-size: var(--font-size-lg);
    }
    
    .backup-features {
        flex-wrap: wrap;
        gap: var(--spacing-2);
    }
    
    .backup-item {
        font-size: var(--font-size-xs);
        padding: var(--spacing-1) var(--spacing-2);
    }
}

/* Medium screens (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .hero-home {
        min-height: auto;
        padding-top: 90px;
    }
    
    .hero-title-home {
        font-size: 2rem;
    }
    
    .section {
        padding: var(--spacing-12) 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .chart-container {
        padding: var(--spacing-5);
    }
    
    .chart-wrapper {
        overflow-x: auto;
    }
    
    .chart-wrapper svg {
        min-width: 600px;
    }
    
    .battery-cta .btn {
        width: 100%;
    }
    
    .cta-text-home h2 {
        font-size: 1.75rem;
    }
}

/* Fix chart overflow on mobile */
@media (max-width: 768px) {
    .chart-container {
        overflow: hidden;
    }
    
    .chart-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--spacing-2);
    }
    
    /* Season modes improvements */
    .season-modes-grid {
        gap: var(--spacing-4);
    }
    
    .season-card {
        padding: var(--spacing-5);
    }
    
    /* Scenario cards */
    .scenarios-grid {
        gap: var(--spacing-4);
    }
    
    .scenario-card {
        padding: var(--spacing-5);
    }
    
    /* Stats grid - ensure single column */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    /* Buttons full width */
    .hero-cta .btn,
    .battery-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Section dark adjustments */
    .section-dark .section-tag {
        font-size: var(--font-size-xs);
    }
    
    .section-title-light {
        font-size: 1.75rem;
    }
    
    .section-desc-light {
        font-size: var(--font-size-base);
    }
    
    /* Features grid single column */
    .features-grid {
        grid-template-columns: 1fr;
    }
}