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

:root {
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0f0f23;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(245, 87, 108, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(79, 172, 254, 0.1) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%) brightness(110%);
    -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 1200px;
    z-index: 1000;
    border-radius: 2rem;
    padding: 1rem 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--text-primary);
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gradient);
    border-radius: 2rem;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-ghost {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
}

.btn-ghost:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.hero-badge,
.glass-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    padding: 2rem 3rem;
    border-radius: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

/* Hero Visual */
.hero-visual {
    max-width: 500px;
    margin: 0 auto;
}

.visual-card {
    border-radius: 2rem;
    padding: 2rem;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 12px #10b981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.card-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.charging-display {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.power-ring {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.power-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-background {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 12;
}

.ring-progress {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 12;
    stroke-linecap: round;
    stroke-dasharray: 502;
    stroke-dashoffset: 125;
    animation: fillRing 2s ease-out;
}

@keyframes fillRing {
    from { stroke-dashoffset: 502; }
}

.power-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.power-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.unit {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.power-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.queue-info {
    display: flex;
    gap: 1rem;
}

.queue-item {
    flex: 1;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.queue-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.queue-value {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

/* Features Overview */
.features-overview {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem;
    border-radius: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-link:hover {
    transform: translateX(4px);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
}

.cta-card {
    text-align: center;
    padding: 4rem;
    border-radius: 2rem;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer */
.footer {
    margin: 80px 20px 20px;
    border-radius: 2rem;
    padding: 3rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
    padding: 0 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo span {
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-tagline {
    color: var(--text-muted);
}

.footer-heading {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
}

/* Page Header */
.page-header {
    padding: 160px 0 80px;
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.page-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Feature Detail Sections */
.feature-detail {
    padding: 60px 0;
}

.feature-detail.alternate {
    background: rgba(255, 255, 255, 0.02);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

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

.detail-badge {
    margin-bottom: 1.5rem;
}

.detail-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.detail-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
}

.feature-list-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.list-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

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

.list-content strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

/* Queue Visualization */
.queue-visualization {
    padding: 1.5rem;
}

.queue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.queue-header h4 {
    font-size: 1.1rem;
}

.queue-count {
    padding: 0.25rem 0.75rem;
    background: rgba(79, 172, 254, 0.2);
    border-radius: 2rem;
    font-size: 0.85rem;
    color: #4facfe;
}

.queue-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.queue-vehicle {
    padding: 1rem;
    border-radius: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.queue-vehicle:hover {
    transform: translateX(4px);
}

.queue-vehicle.active {
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.vehicle-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.vehicle-id {
    font-weight: 600;
}

.vehicle-battery {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.vehicle-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.charging {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.status-badge.priority {
    background: rgba(245, 87, 108, 0.2);
    color: #f5576c;
}

.status-badge.waiting {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.time-remaining {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Power Distribution */
.power-distribution {
    padding: 1.5rem;
}

.power-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.total-power {
    font-weight: 600;
    color: var(--text-secondary);
}

.power-bars {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.power-bar-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bar-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.bar-label {
    color: var(--text-secondary);
}

.bar-value {
    font-weight: 600;
}

.bar-container {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2rem;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 2rem;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-fill.idle {
    background: rgba(255, 255, 255, 0.2);
}

/* TOU Chart */
.tou-chart {
    padding: 1.5rem;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.current-rate {
    font-weight: 700;
    font-size: 1.25rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chart-visualization {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 180px;
    gap: 0.5rem;
}

.chart-bar {
    flex: 1;
    border-radius: 0.5rem;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-bar:hover {
    transform: translateY(-4px);
    opacity: 0.8;
}

.chart-bar.off-peak {
    background: linear-gradient(to top, #10b981, #059669);
}

.chart-bar.mid-peak {
    background: linear-gradient(to top, #fbbf24, #f59e0b);
}

.chart-bar.on-peak {
    background: linear-gradient(to top, #ef4444, #dc2626);
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.off-peak {
    background: #10b981;
}

.legend-dot.mid-peak {
    background: #fbbf24;
}

.legend-dot.on-peak {
    background: #ef4444;
}

/* Technology Page */
.tech-architecture {
    padding: 60px 0;
}

.tech-stack {
    padding: 3rem;
    border-radius: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stack-layer {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    border-left: 4px solid;
}

.stack-layer:nth-child(1) {
    border-color: #667eea;
}

.stack-layer:nth-child(2) {
    border-color: #f5576c;
}

.stack-layer:nth-child(3) {
    border-color: #4facfe;
}

.stack-layer h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stack-layer p {
    color: var(--text-secondary);
}

.tech-features {
    padding: 60px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.tech-card {
    padding: 2rem;
    border-radius: 2rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-card:hover {
    transform: translateY(-8px);
}

.tech-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.tech-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Page */
.contact-section {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    padding: 1.5rem;
    border-radius: 1.5rem;
}

.info-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.info-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.info-card a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.info-card a:hover {
    color: var(--text-primary);
}

.contact-form-container {
    padding: 2.5rem;
    border-radius: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    padding: 0.875rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        display: none;
    }

    .hero-title {
        font-size: 3rem;
    }

    .detail-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .detail-grid.reverse {
        direction: ltr;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .hero-stats {
        gap: 1.5rem;
        padding: 1.5rem 2rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .hero-actions,
    .cta-actions {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

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