/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0a0e1a;
    color: #e0e6f0;
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== GRADIENT TEXT ===== */
.gradient-text {
    background: linear-gradient(135deg, #00d4ff, #7c3aed, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}
.btn-primary {
    background: linear-gradient(135deg, #00d4ff, #7c3aed);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}
.btn-outline {
    border: 2px solid rgba(0, 212, 255, 0.4);
    color: #00d4ff;
    background: transparent;
}
.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: #00d4ff;
}
.btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: 14px; }
.btn-full { width: 100%; justify-content: center; }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
    background: transparent;
}
.navbar.scrolled {
    background: rgba(10, 14, 26, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 10px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 700; }
.logo-icon { font-size: 1.8rem; }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { font-size: 0.95rem; color: #a0aec0; transition: color 0.3s; position: relative; }
.nav-links a:hover { color: #fff; }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #7c3aed);
    transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-cta {
    background: linear-gradient(135deg, #00d4ff, #7c3aed);
    color: #fff !important;
    padding: 8px 24px;
    border-radius: 10px;
    font-weight: 500;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4); }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; cursor: pointer; padding: 4px; }
.mobile-menu-btn span { width: 24px; height: 2px; background: #fff; transition: 0.3s; border-radius: 2px; }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.energy-grid {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
}
.energy-grid::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.floating-icons { position: absolute; inset: 0; }
.float-icon {
    position: absolute;
    left: var(--x);
    top: var(--y);
    font-size: 2rem;
    animation: float 6s ease-in-out infinite;
    animation-delay: var(--delay);
    opacity: 0.6;
    filter: blur(0.5px);
}
@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}
.hero-content { position: relative; z-index: 1; text-align: center; }
.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 100px;
    font-size: 0.9rem;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s;
}
.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s 0.2s both;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: #a0aec0;
    max-width: 640px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.8s 0.4s both;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; animation: fadeInUp 0.8s 0.6s both; }
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-top: 64px;
    animation: fadeInUp 0.8s 0.8s both;
}
.stat-item { text-align: center; }
.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #00d4ff, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-unit { font-size: 1.2rem; color: #00d4ff; font-weight: 700; }
.stat-label { display: block; font-size: 0.85rem; color: #718096; margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.1); }
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #718096;
    font-size: 0.8rem;
    animation: fadeInUp 1s 1s both;
}
.mouse { width: 24px; height: 38px; border: 2px solid rgba(255,255,255,0.2); border-radius: 12px; position: relative; }
.wheel {
    width: 4px; height: 8px;
    background: #00d4ff;
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}
@keyframes scroll { 0% { opacity: 1; transform: translateX(-50%) translateY(0); } 100% { opacity: 0; transform: translateX(-50%) translateY(12px); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 100px;
    font-size: 0.85rem;
    color: #00d4ff;
    margin-bottom: 16px;
}
.section-title { font-size: 2.5rem; font-weight: 900; margin-bottom: 16px; }
.section-desc { color: #a0aec0; max-width: 640px; margin: 0 auto; font-size: 1.05rem; }

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.about-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 36px 28px;
    transition: all 0.4s;
}
.about-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.04);
}
.about-card-main {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(124, 58, 237, 0.08));
    border-color: rgba(0, 212, 255, 0.15);
    text-align: center;
    padding: 48px 40px;
}
.about-card-main .about-card-icon { font-size: 3rem; margin-bottom: 16px; }
.about-card-main h3 { font-size: 1.5rem; margin-bottom: 12px; }
.about-card-main p { max-width: 800px; margin: 0 auto; color: #a0aec0; }
.about-card-icon { font-size: 2.2rem; margin-bottom: 16px; }
.about-card h3 { font-size: 1.2rem; margin-bottom: 10px; font-weight: 700; }
.about-card p { color: #a0aec0; font-size: 0.95rem; line-height: 1.8; }

/* ===== FEATURES ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 36px 28px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #00d4ff, #7c3aed);
    transform: scaleX(0);
    transition: transform 0.4s;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.feature-icon { width: 56px; height: 56px; margin-bottom: 20px; }
.feature-icon svg { width: 100%; height: 100%; }
.feature-card h3 { font-size: 1.25rem; margin-bottom: 10px; font-weight: 700; }
.feature-card p { color: #a0aec0; font-size: 0.95rem; line-height: 1.8; }
.feature-tag {
    display: inline-block;
    margin-top: 16px;
    padding: 4px 12px;
    background: rgba(124, 58, 237, 0.15);
    color: #a78bfa;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===== HOW IT WORKS ===== */
.steps-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.step-connector {
    position: absolute;
    top: 60px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #7c3aed, #f472b6, #00d4ff);
    z-index: 0;
}
.step-card {
    text-align: center;
    padding: 32px 20px;
    position: relative;
    z-index: 1;
}
.step-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(124, 58, 237, 0.2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}
.step-icon { font-size: 2.5rem; margin-bottom: 16px; }
.step-card h3 { font-size: 1.15rem; margin-bottom: 8px; font-weight: 700; }
.step-card p { color: #a0aec0; font-size: 0.9rem; }

/* ===== DASHBOARD ===== */
.dashboard-section {
    background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.02), transparent);
}
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.dash-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 28px;
}
.dash-card-wide { grid-column: 1 / -1; }
.dash-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.dash-card-header h3 { font-size: 1.1rem; font-weight: 600; }
.live-badge {
    font-size: 0.8rem;
    color: #34d399;
    animation: pulse-live 2s infinite;
}
@keyframes pulse-live { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.power-chart { position: relative; width: 100%; overflow: hidden; border-radius: 12px; }
.power-chart canvas { width: 100% !important; height: 200px !important; }
.chart-legend { display: flex; gap: 24px; margin-top: 16px; justify-content: center; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: #a0aec0; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-blue { background: #00d4ff; }
.dot-green { background: #34d399; }
.dot-purple { background: #a78bfa; }
.dash-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.metric { text-align: center; padding: 16px; background: rgba(255,255,255,0.02); border-radius: 12px; }
.metric-value { display: block; font-size: 1.6rem; font-weight: 800; color: #00d4ff; }
.metric-unit { font-size: 0.85rem; color: #718096; }
.metric-label { display: block; font-size: 0.8rem; color: #718096; margin-top: 4px; }
.map-placeholder {
    height: 240px;
    background: rgba(0, 212, 255, 0.03);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 20px;
}
.map-dots { position: absolute; inset: 0; }
.map-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: #00d4ff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.6);
}
.map-dot.pulse {
    animation: dot-pulse 2s infinite;
    width: 16px;
    height: 16px;
}
@keyframes dot-pulse {
    0%, 100% { box-shadow: 0 0 12px rgba(0, 212, 255, 0.6); }
    50% { box-shadow: 0 0 24px rgba(0, 212, 255, 0.9), 0 0 40px rgba(0, 212, 255, 0.3); }
}
.map-label { color: #a0aec0; font-size: 0.9rem; position: relative; z-index: 1; }

/* ===== CALCULATOR ===== */
.calc-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 40px;
}
.calc-group { margin-bottom: 28px; }
.calc-group label { display: block; font-size: 0.9rem; color: #a0aec0; margin-bottom: 10px; }
.calc-group input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    outline: none;
}
.calc-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, #00d4ff, #7c3aed);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.4);
}
.range-value { display: block; text-align: right; color: #00d4ff; font-weight: 600; margin-top: 6px; }
.calc-group select {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    color: #e0e6f0;
    cursor: pointer;
}
.calc-group select option { background: #1a1f36; }
.calc-results { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-content: start; }
.result-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
}
.result-highlight {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border-color: rgba(0, 212, 255, 0.2);
    padding: 32px;
}
.result-label { font-size: 0.85rem; color: #a0aec0; margin-bottom: 8px; }
.result-value { font-size: 2rem; font-weight: 900; color: #00d4ff; }
.result-value.small { font-size: 1.3rem; }
.result-sub { font-size: 0.9rem; color: #718096; margin-top: 4px; }

/* ===== PARTNERS ===== */
.partners-section { padding: 80px 0; }
.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
}
.partner-logo {
    padding: 20px 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    font-size: 1.1rem;
    font-weight: 700;
    color: #718096;
    transition: all 0.3s;
    letter-spacing: 2px;
}
.partner-logo:hover {
    border-color: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
    transform: translateY(-3px);
}

/* ===== CONTACT ===== */
.contact-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    align-items: start;
}
.contact-form {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-size: 0.9rem; color: #a0aec0; margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    color: #e0e6f0;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: #4a5568; }
.form-group select option { background: #1a1f36; }
.form-group textarea { resize: vertical; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.info-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s;
}
.info-card:hover { border-color: rgba(0, 212, 255, 0.2); }
.info-icon { font-size: 1.8rem; margin-bottom: 12px; }
.info-card h4 { font-size: 1rem; margin-bottom: 6px; font-weight: 600; }
.info-card p { color: #00d4ff; font-size: 1.1rem; font-weight: 600; margin-bottom: 4px; }
.info-card span { font-size: 0.85rem; color: #718096; }

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 60px 0 30px;
    background: rgba(0, 0, 0, 0.2);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand p { color: #718096; margin-top: 12px; font-size: 0.95rem; }
.social-links { display: flex; gap: 12px; margin-top: 16px; }
.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    font-size: 1.2rem;
    transition: all 0.3s;
}
.social-links a:hover { background: rgba(0, 212, 255, 0.15); transform: translateY(-2px); }
.footer-links h4 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.footer-links a { display: block; color: #718096; padding: 6px 0; font-size: 0.9rem; transition: color 0.3s; }
.footer-links a:hover { color: #00d4ff; }
.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: #4a5568;
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: repeat(2, 1fr); }
    .about-card-main { grid-column: 1 / -1; }
    .steps-container { grid-template-columns: repeat(2, 1fr); }
    .step-connector { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 26, 0.98);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .mobile-menu-btn { display: flex; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .stat-divider { width: 40px; height: 1px; }
    .hero-title { font-size: 2.2rem; }
    .features-grid, .about-grid, .steps-container { grid-template-columns: 1fr; }
    .dashboard-grid { grid-template-columns: 1fr; }
    .calc-container { grid-template-columns: 1fr; }
    .calc-results { grid-template-columns: 1fr 1fr; }
    .contact-container { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 60px 0; }
    .section-title { font-size: 1.8rem; }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s, transform 0.8s;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== FORM SUCCESS ===== */
.form-success {
    text-align: center;
    padding: 60px 20px;
}
.form-success-icon { font-size: 4rem; margin-bottom: 16px; }
.form-success h3 { font-size: 1.5rem; margin-bottom: 8px; }
.form-success p { color: #a0aec0; }