/* General Body & Reset */
:root {
    --bg-dark: #0f172a; /* Slate 900 */
    --bg-panel: #1e293b; /* Slate 800 */
    --text-main: #e2e8f0; /* Slate 200 */
    --text-headings: #ffffff;
    --accent-blue: #3b82f6;
    --accent-violet: #8b5cf6;
    --border-color: #334155; /* Slate 700 */
}

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

html {
    scroll-behavior: smooth;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-size: 16px;
    line-height: 1.6;
}

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

section {
    padding: 80px 0;
    border-bottom: 1px solid var(--border-color);
}

section:last-child {
    border-bottom: none;
}

h1, h2, h3, h4 {
    color: var(--text-headings);
    margin-bottom: 20px;
    line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; text-align: center; }
h3 { font-size: 1.5rem; }

/* Navigation */
.navbar {
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    color: var(--text-headings);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-brand svg {
    width: 32px;
    height: 32px;
    margin-right: 10px;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a.active, .nav-links a:hover {
    color: var(--accent-blue);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-blue);
}

/* Hero Section */
#hero {
    text-align: center;
    padding: 100px 0;
}

#hero .subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: #94a3b8; /* Slate 400 */
}

.hero-buttons .btn {
    margin: 0 10px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: white;
}

.btn-primary:hover {
    background-color: #2563eb; /* Blue 600 */
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-panel);
    border-color: #475569; /* Slate 600 */
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 60px;
    background-color: var(--bg-panel);
    padding: 30px;
    border-radius: 12px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

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

.stat-item .value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-violet);
}

.stat-item .label {
    font-size: 1rem;
    color: #94a3b8; /* Slate 400 */
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background-color: var(--bg-panel);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.feature-card svg {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
    color: var(--accent-blue);
}

.feature-deep-dive {
    margin-top: 40px;
}

.dive-item {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 50px;
}

.dive-item:nth-child(even) {
    flex-direction: row-reverse;
}

.dive-text {
    flex: 1;
}

.dive-image {
    flex: 1;
    background-color: var(--bg-panel);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dive-image svg {
    max-width: 100%;
    height: auto;
}

/* Platforms Section */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.platform-card {
    background-color: var(--bg-panel);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.platform-card svg {
    width: 56px;
    height: 56px;
    margin-bottom: 15px;
}

.platform-card h3 {
    font-size: 1.25rem;
}

.platform-card .requirements {
    font-size: 0.9rem;
    color: #94a3b8; /* Slate 400 */
    margin-bottom: 20px;
}

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

.review-card {
    background-color: var(--bg-panel);
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-violet);
}

.review-stars {
    color: #f59e0b; /* Amber 500 */
    margin-bottom: 10px;
}

.review-text {
    font-style: italic;
    margin-bottom: 15px;
}

.review-author {
    font-weight: bold;
    color: var(--text-headings);
}

/* Security Section */
.security-grid {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-bottom: 60px;
}

.security-info {
    flex: 2;
}

.security-badges {
    flex: 1;
    background-color: var(--bg-panel);
    padding: 20px;
    border-radius: 12px;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.badge-item:last-child {
    margin-bottom: 0;
}

.badge-item svg {
    width: 32px;
    height: 32px;
    color: var(--accent-blue);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px;
}

.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: left;
    border: 1px solid var(--border-color);
}

.comparison-table th {
    background-color: var(--bg-panel);
}

.comparison-table .wps-col {
    background-color: rgba(59, 130, 246, 0.1);
}

/* Versions Section */
.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.version-card {
    background-color: var(--bg-panel);
    padding: 30px;
    border-radius: 12px;
    border-top: 4px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.version-card.recommended {
    border-color: var(--accent-blue);
}

.version-card .price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.version-card .price span {
    font-size: 1rem;
    font-weight: normal;
    color: #94a3b8; /* Slate 400 */
}

.version-card ul {
    list-style: none;
    margin: 20px 0;
    flex-grow: 1;
}

.version-card li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.version-card li svg {
    width: 20px;
    height: 20px;
    color: #22c55e; /* Green 500 */
    margin-right: 10px;
}

/* FAQ Section */
.faq-item {
    background-color: var(--bg-panel);
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    color: var(--text-headings);
}

.faq-question svg {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer p {
    padding: 0 20px 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.faq-item.active .faq-answer {
    max-height: 300px; /* Adjust as needed */
}

.faq-item.active .faq-question svg {
    transform: rotate(45deg);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    font-size: 0.9rem;
    color: #94a3b8; /* Slate 400 */
}

/* Spin Animation for Buttons */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; } /* Simple hide for this example, could be a hamburger menu */
    .hero-stats { flex-direction: column; gap: 20px; }
    .dive-item, .dive-item:nth-child(even) {
        flex-direction: column;
    }
    .security-grid { flex-direction: column; }
}