@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;600&family=JetBrains+Mono:wght@400;700&family=Noto+Sans+SC:wght@400;600&display=swap');

/* Deep-Sea Control Room Theme Variables */
:root {
    --bg: #06131F;
    --panel: #0C2233;
    --text-main: #DCE9F0;
    --text-muted: #8AA4B7;
    --accent: #3DDAD7;
    --accent-glow: rgba(61, 218, 215, 0.4);
    --border-color: rgba(61, 218, 215, 0.15);
}

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

body {
    font-family: 'IBM Plex Sans', 'Noto Sans SC', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'IBM Plex Sans', 'Noto Sans SC', sans-serif;
    font-weight: 600;
    color: #FFFFFF;
}

.metrics, .price, .badge {
    font-family: 'JetBrains Mono', monospace;
}

.accent-text {
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent-glow);
}

h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    letter-spacing: 1px;
}

section {
    padding: 100px 0;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(6, 19, 31, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #FFF;
    font-size: 1.4rem;
    font-weight: 600;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.nav-highlight {
    color: var(--accent);
}
.nav-highlight {
    text-shadow: 0 0 8px var(--accent-glow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--bg);
    box-shadow: 0 0 15px var(--accent-glow);
}

.btn-primary:hover {
    background-color: #55EFEF;
    box-shadow: 0 0 25px var(--accent-glow);
}

.btn-secondary {
    background-color: var(--panel);
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-secondary:hover {
    background-color: rgba(61, 218, 215, 0.1);
    box-shadow: inset 0 0 10px var(--accent-glow);
}

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

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 120px 20px 100px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    line-height: 1.3;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Grids & Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: var(--panel);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 15px var(--accent-glow);
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.card p {
    color: var(--text-muted);
}

.icon-glow {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: inline-block;
    filter: drop-shadow(0 0 8px rgba(61, 218, 215, 0.5));
}

.metrics {
    color: var(--accent);
    font-weight: 700;
}

/* Pricing Special */
.pricing-card {
    position: relative;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.pricing-card.popular {
    border-color: var(--accent);
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-glow);
}

.pricing-card.popular:hover {
    transform: scale(1.02) translateY(-5px);
}

.badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 0 10px var(--accent-glow);
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: #FFF;
    margin: 20px 0;
}

.price span {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: normal;
}

.pricing-card ul {
    list-style: none;
    margin: 0 0 35px 0;
    flex-grow: 1;
}

.pricing-card li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
}

.pricing-card li:last-child {
    border-bottom: none;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    padding: 25px 35px;
    text-align: left;
}

.faq-item h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--accent);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    background-color: #040D14;
    padding: 60px 0 30px;
    text-align: center;
}

.footer-links {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

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

.copyright {
    color: #4A5D6B;
    font-size: 0.9rem;
}

/* Responsive Media Queries */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile nav hide for purely CSS demo */
    }
    
    .hero {
        padding: 80px 20px 60px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    section {
        padding: 60px 0;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
}

/* SEO & Nav Enhancements */
.breadcrumb { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 20px; text-align: left; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.article-nav { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.article-nav a { color: var(--accent); text-decoration: none; font-weight: 600; font-size: 1.1rem; padding: 10px; }
.article-nav a:hover { text-shadow: 0 0 8px var(--accent-glow); }
.fab-container { position: fixed; bottom: 30px; right: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 1000; }
.fab { width: 45px; height: 45px; background: var(--panel); border: 1px solid var(--accent); color: var(--accent); border-radius: 50%; display: flex; justify-content: center; align-items: center; text-decoration: none; font-size: 1.5rem; box-shadow: 0 4px 15px rgba(0,0,0,0.5); transition: all 0.3s ease; }
.fab:hover { background: var(--accent); color: var(--bg); box-shadow: 0 4px 20px var(--accent-glow); transform: translateY(-3px); }
.hero-img { width: 100%; max-width: 800px; border-radius: 16px; margin-bottom: 30px; box-shadow: 0 8px 32px rgba(61, 218, 215, 0.2); border: 1px solid var(--border-color); }

/* Trust & E-E-A-T Enhancements */
.trust-badges { display: flex; justify-content: center; gap: 15px; margin-top: 30px; flex-wrap: wrap; }
.trust-badge { display: flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.05); padding: 8px 18px; border-radius: 20px; font-size: 0.9rem; color: var(--text-main); border: 1px solid rgba(61, 218, 215, 0.2); box-shadow: inset 0 0 10px rgba(61, 218, 215, 0.05); }
.social-links { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }
.social-links a { color: var(--text-muted); font-size: 1.1rem; font-weight: 600; text-decoration: none; transition: all 0.3s; padding: 6px 16px; border: 1px solid var(--border-color); border-radius: 8px; background: rgba(255,255,255,0.03); }
.social-links a:hover { color: var(--accent); border-color: var(--accent); box-shadow: 0 0 10px var(--accent-glow); }
.author-box { background: rgba(6, 19, 31, 0.8); padding: 25px; border-radius: 12px; margin: 40px 0; border-left: 4px solid var(--accent); box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.author-box h4 { margin-bottom: 10px; color: var(--accent); font-size: 1.1rem; }
.author-box p { font-size: 0.95rem; color: var(--text-muted); margin: 0; line-height: 1.6; }
.trustpilot-widget { text-align: center; margin-top: 35px; font-family: 'IBM Plex Sans', sans-serif; }
.stars { color: #00b67a; font-size: 1.6rem; letter-spacing: 2px; text-shadow: 0 0 5px rgba(0,182,122,0.4); }
.corp-info { font-size: 0.9rem; color: var(--text-muted); margin-top: 20px; line-height: 1.8; }

/* Affiliate Transparency & Objective Review */
.affiliate-disclosure { background: rgba(61, 218, 215, 0.05); text-align: center; padding: 12px 20px; font-size: 0.9rem; color: var(--text-muted); border-bottom: 1px solid var(--border-color); }
.affiliate-disclosure span { color: var(--accent); font-weight: bold; }
.pros-cons-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 50px; }
.pros-box { background: rgba(0, 182, 122, 0.03); border-top: 4px solid #00b67a; padding: 35px; border-radius: 12px; }
.cons-box { background: rgba(255, 77, 79, 0.03); border-top: 4px solid #ff4d4f; padding: 35px; border-radius: 12px; }
.pros-box h3 { color: #00b67a; margin-bottom: 25px; font-size: 1.4rem; }
.cons-box h3 { color: #ff4d4f; margin-bottom: 25px; font-size: 1.4rem; }
.pros-cons-list { list-style: none; padding: 0; margin: 0; }
.pros-cons-list li { margin-bottom: 20px; display: flex; align-items: flex-start; gap: 12px; font-size: 1.05rem; }
.pros-icon { color: #00b67a; font-weight: bold; font-size: 1.2rem; }
.cons-icon { color: #ff4d4f; font-weight: bold; font-size: 1.2rem; }
@media screen and (max-width: 768px) { .pros-cons-grid { grid-template-columns: 1fr; } }