/* --- CSS Variables & Design System --- */
:root {
    --bg-color: #0a0a0a;
    --bg-dark-gray: #161616;
    --bg-lighter-gray: #202020;
    --text-primary: #ffffff;
    --text-muted: #a0a0a0;
    --electric-green: #39FF14;
    --electric-green-glow: rgba(57, 255, 20, 0.4);
    --solar-yellow: #FFD700;
    --solar-yellow-glow: rgba(255, 215, 0, 0.4);
    --border-color: rgba(255, 255, 255, 0.1);
    
    --font-main: 'Outfit', sans-serif;
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -1px;
    margin-bottom: 20px;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

p {
    font-size: 1.125rem;
    color: var(--text-muted);
    font-weight: 300;
}

.highlight {
    background: linear-gradient(90deg, #ffffff, var(--text-muted));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.highlight-green { color: var(--electric-green); }
.highlight-yellow { color: var(--solar-yellow); }

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

/* --- Layout --- */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-padding {
    padding: 100px 0;
}

/* --- Utilities & Aesthetics --- */
.glassmorphism {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
}

.border-green {
    border-color: rgba(57, 255, 20, 0.2);
    box-shadow: 0 8px 32px var(--electric-green-glow);
}

.border-yellow-accent {
    border-bottom: 3px solid var(--solar-yellow);
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-gray {
    background: var(--bg-lighter-gray);
    color: var(--electric-green);
    border-color: rgba(57, 255, 20, 0.3);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    gap: 8px;
}

.btn-primary {
    background-color: var(--electric-green);
    color: #000;
}

.btn-primary:hover {
    background-color: #32e012;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--electric-green-glow);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--solar-yellow);
    color: var(--solar-yellow);
}

.btn-outline:hover {
    background-color: var(--solar-yellow);
    color: #000;
    box-shadow: 0 10px 20px var(--solar-yellow-glow);
}

.btn-block {
    width: 100%;
}

.pulse-btn {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--electric-green-glow); }
    70% { box-shadow: 0 0 0 15px rgba(57, 255, 20, 0); }
    100% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0); }
}

/* --- Setup Reveal (Animation Base) --- */
.setup-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.setup-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--solar-yellow);
    white-space: nowrap;
}

.brand-logo {
    height: 45px;
    width: 45px;
    object-fit: cover;
    border-radius: 50%;
}

.logo-icon {
    color: var(--solar-yellow);
    font-size: 1.8rem;
}

.logo .dot {
    color: var(--electric-green);
}

.nav-cta {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 1rem;
    transition: var(--transition);
}

.nav-cta:hover {
    color: var(--electric-green);
}

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

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--electric-green-glow) 0%, transparent 60%);
    filter: blur(80px);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-subtitle {
    margin-bottom: 40px;
    font-size: 1.25rem;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* 3D Battery CSS Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.battery-3d {
    width: 250px;
    height: 400px;
    position: relative;
    perspective: 1000px;
}

.battery-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a2a, #111);
    border-radius: 20px;
    border: 2px solid #333;
    position: relative;
    box-shadow: 20px 20px 50px rgba(0,0,0,0.8), inset -5px -5px 15px rgba(0,0,0,0.5), inset 5px 5px 15px rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.battery-body:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.battery-top {
    position: absolute;
    top: -15px;
    width: 50%;
    height: 15px;
    background: #333;
    border-radius: 10px 10px 0 0;
}

.battery-indicator {
    width: 60%;
    height: 10px;
    display: flex;
    gap: 5px;
    background: #000;
    padding: 3px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.bar {
    flex: 1;
    background-color: var(--electric-green);
    border-radius: 2px;
}

.bar.pulse {
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.logo-mark {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 5px;
    color: rgba(255, 255, 255, 0.1);
    transform: rotate(-90deg);
    position: absolute;
    right: 30px;
}

.battery-glow {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120%;
    height: 40px;
    background: radial-gradient(ellipse at center, var(--electric-green-glow) 0%, transparent 70%);
    filter: blur(15px);
}

.floating-stat {
    position: absolute;
    background: rgba(20, 20, 20, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: float 4s ease-in-out infinite;
}

.floating-stat i {
    color: var(--electric-green);
    font-size: 1.5rem;
}

.stat-1 { top: 10%; right: -20px; animation-delay: 0s; }
.stat-2 { bottom: 15%; left: -30px; animation-delay: 2s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* --- Problem / Solution --- */
.ps-grid {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-top: 50px;
    margin-bottom: 50px;
}

.ps-card {
    flex: 1;
    padding: 40px;
    border-radius: var(--border-radius-md);
    background: var(--bg-dark-gray);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.ps-arrow {
    font-size: 4rem;
    color: var(--text-muted);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #ff4757; /* red for problem */
}

.card-icon.green {
    color: var(--electric-green);
}

/* --- Benefits --- */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.benefit-card {
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-10px);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2.5rem;
    background: var(--bg-lighter-gray);
}

.green-glow { color: var(--electric-green); box-shadow: 0 0 20px var(--electric-green-glow); }
.yellow-glow { color: var(--solar-yellow); box-shadow: 0 0 20px var(--solar-yellow-glow); }
.white-glow { color: #fff; box-shadow: 0 0 20px rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.1); }

/* --- Engineering Section --- */
.engineering-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.eng-card {
    padding: 40px;
    background: var(--bg-dark-gray);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.eng-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.eng-card-wide {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px;
    background: rgba(57, 255, 20, 0.02);
}

.eng-icon {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: inline-flex;
    padding: 15px;
    background: var(--bg-lighter-gray);
    border-radius: 12px;
}

.eng-list {
    list-style: none;
    margin-top: 15px;
    flex-grow: 1;
}

.eng-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-muted);
    font-size: 1.05rem;
}

.eng-list li i {
    color: var(--text-primary);
    margin-top: 4px;
    font-size: 1.2rem;
}

.eng-list li strong {
    color: var(--text-primary);
}

.shield-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

.eng-promise-text {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}

.border-green-subtle {
    border-color: rgba(57, 255, 20, 0.1);
}

.mt-40 {
    margin-top: 40px;
}

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

/* --- Myths --- */
.myths-accordion {
    max-width: 800px;
    margin: 50px auto 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.myth-item {
    background: var(--bg-dark-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.myth-header {
    padding: 24px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: rgba(255,255,255,0.02);
}

.myth-header i {
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.myth-body {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background: rgba(57, 255, 20, 0.03);
    border-left: 3px solid var(--electric-green);
}

.myth-item.active .myth-body {
    padding: 24px 30px;
    max-height: 200px;
}

.myth-item.active .myth-header i {
    transform: rotate(45deg);
    color: var(--electric-green);
}

/* --- Guarantee --- */
.guarantee-container {
    text-align: center;
    padding: 80px 40px;
    position: relative;
}

.guarantee-icon-big {
    font-size: 5rem;
    color: var(--solar-yellow);
    margin-bottom: 20px;
}

.price-tag {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.currency {
    font-size: 1.5rem;
    color: var(--solar-yellow);
}

.guarantee-text {
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 1.25rem;
}

.lg-btn {
    font-size: 1.25rem;
    padding: 20px 45px;
}

/* --- Contact --- */
.contact-section {
    background: var(--bg-dark-gray);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-methods {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.method {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.2rem;
    font-weight: 500;
}

.method i {
    font-size: 2rem;
    color: var(--electric-green);
}

.contact-form-wrapper {
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 16px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--electric-green);
    box-shadow: 0 0 10px var(--electric-green-glow);
}

/* --- Footer --- */
footer {
    background: var(--bg-color);
    padding: 80px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-links-group h4, .footer-social h4 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links-group a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s;
}

.footer-links-group a:hover {
    color: var(--electric-green);
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-lighter-gray);
    color: var(--text-primary);
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--electric-green);
    color: #000;
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- Live Demo Section --- */
.demo-section {
    position: relative;
    background: var(--bg-color);
}

.demo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
}

.demo-video-wrapper {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
}

.video-mockup {
    width: 320px;
    height: 568px;
    border-radius: 40px;
    padding: 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    background: var(--bg-dark-gray);
}

.video-mockup iframe {
    width: 100%;
    height: 100%;
    border-radius: 25px;
    object-fit: cover;
}

.demo-points {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
    max-width: 500px;
}

.demo-point {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    transition: transform 0.3s ease;
}

.demo-point:hover {
    transform: translateX(10px);
    border-color: rgba(57, 255, 20, 0.3);
}

.demo-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.demo-text h4 {
    font-size: 1.25rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.demo-text p {
    font-size: 1rem;
    color: var(--text-muted);
}

@media (max-width: 992px) {
    .demo-container {
        flex-direction: column;
        gap: 40px;
    }
    .demo-video-wrapper, .video-mockup {
        width: 100%;
        max-width: 400px;
    }
    .demo-points {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .video-mockup {
        max-width: 100%;
        aspect-ratio: 9 / 16;
        height: auto;
        border-radius: 20px;
        padding: 5px;
    }
    .video-mockup iframe {
        border-radius: 15px;
    }
    .demo-point {
        padding: 15px;
        flex-direction: column;
        text-align: center;
    }
}

/* --- Floating Button --- */
.floating-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 75px;
    height: 75px;
    z-index: 9999;
    transition: transform 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    border-radius: 50%;
}

.floating-wa:hover {
    transform: translateY(-5px) scale(1.1);
}

.floating-wa img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.8)) drop-shadow(0 0 15px rgba(255, 215, 0, 0.4));
    transition: filter 0.3s ease;
}

.floating-wa:hover img {
    filter: drop-shadow(0 15px 25px rgba(0,0,0,0.9)) drop-shadow(0 0 25px rgba(255, 215, 0, 0.7));
}

@media (max-width: 480px) {
    .floating-wa {
        bottom: 20px;
        right: 20px;
        width: 65px;
        height: 65px;
    }
}

/* --- Responsive Layout --- */
@media (max-width: 992px) {
    .hero-container, .tech-container, .contact-container {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        height: 300px;
        margin-top: 50px;
    }
    .hero {
        padding-top: 120px;
        text-align: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .ps-grid {
        flex-direction: column;
    }
    .ps-arrow {
        transform: rotate(90deg);
    }
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .logo { font-size: 1.15rem; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
    .price-tag { font-size: 2.5rem; }
}