/* ChargeAlong Landing Page - 2026 Style */

:root {
    --brand: #00D66C;
    --brand-dark: #00B85C;
    --brand-glow: rgba(0, 214, 108, 0.3);
    --bg-primary: #0A0A0B;
    --bg-secondary: #111113;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-tertiary: rgba(255, 255, 255, 0.4);
    --border: rgba(255, 255, 255, 0.08);
    --yellow: #FFD60A;
    --red: #FF453A;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 24px;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 24px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    padding: 10px 20px;
    background: var(--brand);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.nav-cta:hover {
    background: var(--brand-dark);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--brand-glow) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

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

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--brand);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--brand) 0%, #00F5A0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 480px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--brand-glow);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    min-height: 500px;
}

.hero-screenshot {
    max-height: 620px;
    width: auto;
    border-radius: 24px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5);
    animation: float 6s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.phone-mockup {
    width: 280px;
    height: 580px;
    background: #1C1C1E;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5);
    animation: float 6s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    border-radius: 32px;
    overflow: hidden;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.app-preview {
    padding: 60px 16px 16px;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
}

.preview-count {
    color: var(--text-tertiary);
    font-weight: 400;
    font-size: 12px;
}

.preview-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    animation: cardSlide 0.5s ease-out both;
}

.preview-card:nth-child(2) { animation-delay: 0.1s; }
.preview-card:nth-child(3) { animation-delay: 0.2s; }
.preview-card:nth-child(4) { animation-delay: 0.3s; }

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

.preview-distance {
    font-size: 28px;
    font-weight: 700;
    min-width: 50px;
}

.preview-distance span {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-tertiary);
}

.preview-info {
    flex: 1;
}

.preview-name {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 2px;
}

.preview-power {
    font-size: 11px;
    color: var(--yellow);
}

.preview-avail {
    font-size: 16px;
    font-weight: 700;
}

.preview-avail.green { color: var(--brand); }
.preview-avail.yellow { color: var(--yellow); }
.preview-avail.red { color: var(--red); }

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 600;
    animation: floatCard 4s ease-in-out infinite;
}

.card-1 {
    top: 100px;
    right: 50px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 150px;
    left: 50px;
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

.card-icon {
    font-size: 18px;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: all 0.3s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-glow);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--brand);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* How it Works */
.how-it-works {
    padding: 120px 0;
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 280px;
}

.step-number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--brand);
    color: var(--bg-primary);
    font-size: 24px;
    font-weight: 800;
    border-radius: 50%;
    margin-bottom: 24px;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 15px;
}

.step-line {
    width: 80px;
    height: 2px;
    background: var(--border);
    margin-top: 32px;
}

/* Download Section */
.download {
    padding: 120px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.download-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: 16px;
}

.download-content p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 32px;
}

.app-store-badge img {
    height: 54px;
    transition: transform 0.2s;
}

.app-store-badge:hover img {
    transform: scale(1.05);
}

/* Footer */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-contact a {
    color: var(--brand);
    text-decoration: none;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 13px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subpage Hero */
.page-hero {
    padding: 160px 24px 80px;
    text-align: center;
    background: var(--bg-secondary);
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(circle, var(--brand-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.3;
}

.page-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    position: relative;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 48px;
}

.faq-category {
    margin-bottom: 32px;
}

.faq-category-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.faq-icon {
    font-size: 28px;
}

.faq-item {
    margin-bottom: 24px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.2s;
}

.faq-item:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.12);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.faq-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.contact-card {
    text-align: center;
    padding: 64px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    max-width: 600px;
    margin: 0 auto;
}

.contact-card h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
}

.contact-card p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Legal Section */
.legal-section {
    padding: 80px 0;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.legal-content h2:first-of-type {
    margin-top: 0;
}

.legal-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.legal-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.legal-content a {
    color: var(--brand);
    text-decoration: none;
    transition: color 0.2s;
}

.legal-content a:hover {
    color: var(--brand-dark);
    text-decoration: underline;
}

.legal-content ul {
    margin: 16px 0;
    padding-left: 24px;
}

.legal-content li {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        margin-top: 60px;
        min-height: auto;
    }

    .floating-card {
        display: none;
    }

    .nav-links {
        display: none;
    }

    .steps {
        flex-direction: column;
    }

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

    .contact-card {
        padding: 40px 24px;
    }

    .step-line {
        width: 2px;
        height: 40px;
        margin: 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }

    .phone-mockup {
        width: 240px;
        height: 500px;
    }

    .hero-screenshot {
        max-height: 480px;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}