/* Blue Arc Energy Style - Sticky Editorial Skeleton */
:root {
    --arc-bg: #020617;
    --arc-surface: #0f172a;
    --arc-primary: #3b82f6;
    --arc-bright: #60a5fa;
    --arc-glow: #93c5fd;
    --arc-text: #f8fafc;
    --arc-muted: #94a3b8;
    --arc-border: #1e293b;
    --font-heading: 'Arial Black', Impact, sans-serif;
    --font-body: 'Segoe UI', system-ui, sans-serif;
}

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

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

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; height: auto; display: block; border-radius: 8px; }

/* 1. Minimal Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    border-bottom: 1px solid var(--arc-border);
    background: var(--arc-bg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.tb-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--arc-text);
    letter-spacing: -1px;
    text-transform: uppercase;
    position: relative;
}
.tb-brand::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0; width: 100%; height: 3px;
    background: var(--arc-primary);
    box-shadow: 0 0 10px var(--arc-primary);
}

.tb-nav {
    display: flex;
    gap: 30px;
}

.tb-nav a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--arc-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tb-nav a:hover, .tb-nav a.active {
    color: var(--arc-bright);
}

.tb-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-arc {
    background: transparent;
    border: 2px solid var(--arc-primary);
    color: var(--arc-bright);
    padding: 10px 24px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    z-index: 1;
}

.btn-arc::before {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 100%; height: 100%;
    background: var(--arc-primary);
    transition: 0.3s;
    z-index: -1;
}

.btn-arc:hover::before { left: 0; }
.btn-arc:hover { color: #fff; box-shadow: 0 0 20px rgba(59, 130, 246, 0.5); }

/* 2. Editorial Layout Structure */
.ed-layout {
    display: flex;
    flex-direction: column;
}

.ed-section {
    display: flex;
    border-bottom: 1px solid var(--arc-border);
}

.ed-sticky {
    width: 35%;
    padding: 80px 40px;
    border-right: 1px solid var(--arc-border);
    background: var(--arc-surface);
}

.ed-sticky-inner {
    position: sticky;
    top: 120px;
}

.ed-sticky h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    line-height: 1;
    color: var(--arc-text);
    text-transform: uppercase;
    margin-bottom: 20px;
}

.ed-sticky h2 span {
    color: var(--arc-primary);
    text-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.ed-sticky p {
    color: var(--arc-muted);
    font-size: 1.1rem;
}

.ed-content {
    width: 65%;
    padding: 80px 60px;
    background: var(--arc-bg);
}

/* 3. Massive Hero */
.hero-massive {
    padding: 120px 40px;
    text-align: center;
    border-bottom: 1px solid var(--arc-border);
    position: relative;
    overflow: hidden;
}

.hero-massive::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-massive h1 {
    font-family: var(--font-heading);
    font-size: 6rem;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.hero-massive p {
    font-size: 1.5rem;
    color: var(--arc-muted);
    max-width: 800px;
    margin: 0 auto 50px;
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 60px;
    font-weight: 600;
    color: var(--arc-bright);
}

/* 4. Stats Grid (Inside Content) */
.stats-grid-arc {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.stat-arc {
    padding: 40px;
    background: var(--arc-surface);
    border: 1px solid var(--arc-border);
    position: relative;
}

.stat-arc::after {
    content: '';
    position: absolute;
    bottom: 0; right: 0; width: 30px; height: 30px;
    border-bottom: 2px solid var(--arc-primary);
    border-right: 2px solid var(--arc-primary);
}

.stat-arc h3 {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--arc-primary);
    line-height: 1;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.stat-arc p {
    font-size: 1.1rem;
    color: var(--arc-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 5. Feature Blocks */
.feat-block {
    margin-bottom: 80px;
}
.feat-block:last-child { margin-bottom: 0; }

.feat-block img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    margin-bottom: 30px;
    border: 1px solid var(--arc-border);
}

.feat-block h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--arc-text);
}

.feat-block p {
    font-size: 1.1rem;
    color: var(--arc-muted);
}

/* 6. Nodes List */
.node-list-arc {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.node-arc {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    background: var(--arc-surface);
    border: 1px solid var(--arc-border);
    transition: 0.3s;
}

.node-arc:hover {
    border-color: var(--arc-primary);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
    transform: translateX(10px);
}

.node-arc h4 { font-size: 1.5rem; }
.node-arc span { color: var(--arc-bright); font-weight: bold; }

/* 7. Reviews */
.review-arc {
    padding: 40px;
    background: var(--arc-surface);
    border-left: 4px solid var(--arc-primary);
    margin-bottom: 30px;
}

.review-arc p {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 20px;
}

.review-arc .author {
    color: var(--arc-bright);
    font-weight: bold;
    text-transform: uppercase;
}

/* 8. Pricing Table */
.pricing-arc {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.price-card-arc {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px;
    background: var(--arc-surface);
    border: 1px solid var(--arc-border);
}

.price-card-arc.pro {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
    border-color: var(--arc-primary);
    box-shadow: inset 4px 0 0 var(--arc-primary);
}

.pc-info h3 { font-size: 1.8rem; margin-bottom: 10px; }
.pc-info p { color: var(--arc-muted); }
.pc-cost { text-align: right; }
.pc-cost .val { font-family: var(--font-heading); font-size: 3.5rem; color: var(--arc-primary); display: block; line-height: 1; margin-bottom: 15px; }
.pc-cost .val span { font-size: 1rem; font-family: var(--font-body); color: var(--arc-muted); }

/* 9. FAQ */
.faq-arc {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--arc-border);
}
.faq-arc:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.faq-arc h4 { font-size: 1.3rem; color: var(--arc-bright); margin-bottom: 15px; }
.faq-arc p { color: var(--arc-muted); font-size: 1.05rem; }

/* Footer */
.arc-footer {
    padding: 60px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--arc-surface);
}

.af-links { display: flex; gap: 30px; }
.af-links a { color: var(--arc-muted); }
.af-links a:hover { color: var(--arc-bright); }

/* Subpages */
.sub-hero-arc {
    padding: 100px 40px;
    text-align: center;
    border-bottom: 1px solid var(--arc-border);
}
.sub-hero-arc h1 { font-family: var(--font-heading); font-size: 4rem; color: var(--arc-primary); margin-bottom: 20px; }
.sub-hero-arc p { font-size: 1.2rem; color: var(--arc-muted); }

.dl-grid-arc {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.dl-card-arc {
    padding: 50px;
    background: var(--arc-surface);
    border: 1px solid var(--arc-border);
    text-align: center;
    transition: 0.3s;
}
.dl-card-arc:hover { border-color: var(--arc-primary); box-shadow: 0 0 30px rgba(59, 130, 246, 0.1); }
.dl-card-arc h3 { font-size: 2rem; margin: 20px 0; }
.dl-card-arc p { color: var(--arc-muted); margin-bottom: 30px; }

.help-grid-arc {
    padding: 80px 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.help-doc-arc {
    background: var(--arc-surface);
    padding: 40px;
    border: 1px solid var(--arc-border);
    border-left: 4px solid var(--arc-primary);
    margin-bottom: 40px;
}
.help-doc-arc h3 { font-size: 1.8rem; margin-bottom: 20px; color: var(--arc-text); }
.help-doc-arc p, .help-doc-arc li { color: var(--arc-muted); margin-bottom: 10px; font-size: 1.05rem; }
.help-doc-arc ul { margin-left: 20px; }

/* Responsive */
@media (max-width: 1024px) {
    .ed-section { flex-direction: column; }
    .ed-sticky { width: 100%; border-right: none; border-bottom: 1px solid var(--arc-border); padding: 40px; }
    .ed-sticky-inner { position: static; }
    .ed-content { width: 100%; padding: 40px; }
    .hero-massive h1 { font-size: 4rem; }
    .price-card-arc { flex-direction: column; text-align: center; gap: 30px; }
    .pc-cost { text-align: center; }
}

@media (max-width: 768px) {
    .tb-nav { display: none; }
    .hero-massive h1 { font-size: 3rem; }
    .hero-trust { flex-direction: column; align-items: center; gap: 15px; }
    .stats-grid-arc { grid-template-columns: 1fr; }
    .arc-footer { flex-direction: column; gap: 30px; text-align: center; }
    .dl-grid-arc { grid-template-columns: 1fr; }
}