/* CSS Reset and Variables */
:root {
    --bg-color: #0B0E14; /* Deep dark blue */
    --surface-color: #151923; /* Slightly lighter blue for cards */
    --surface-hover: #1e2433; /* For card hover state */
    --accent-color: #0057FF; /* Electric blue */
    --accent-glow: rgba(0, 87, 255, 0.4);
    --text-primary: #FFFFFF;
    --text-secondary: #8A8F98;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Spacing */
    --spacer-sm: 8px;
    --spacer-md: 16px;
    --spacer-lg: 32px;
    --spacer-xl: 64px;
    --spacer-xxl: 120px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Base Styles & Typography */
h1, h2, h3, h4, strong, b {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacer-md);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #337aff;
}

.text-center { text-align: center; }
.mb-2 { margin-bottom: var(--spacer-md); }
.mb-4 { margin-bottom: var(--spacer-lg); }
.w-100 { width: 100%; display: block; text-align: center; }

/* Effects & Decor */
.noise {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 100;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.glow-bg {
    position: absolute;
    top: -20vh;
    left: 50%;
    transform: translateX(-50%);
    width: 60vw;
    height: 60vh;
    background: radial-gradient(ellipse at center, rgba(0, 87, 255, 0.15) 0%, rgba(11, 14, 20, 0) 70%);
    pointer-events: none;
    z-index: -1;
}

.highlight {
    background: linear-gradient(90deg, #FFFFFF 0%, #0057FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--spacer-xxl) 0;
}

.section-header {
    max-width: 800px;
    margin: 0 auto var(--spacer-xl);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacer-md);
    letter-spacing: -0.03em;
}

.section-desc {
    font-size: 1.125rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    gap: 8px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #FFF;
}

.btn-primary:hover {
    background-color: #0046CC;
    transform: translateY(-2px);
    color: #FFF;
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
    background-color: var(--surface-color);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--surface-hover);
    color: #FFF;
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: var(--text-primary);
    background-color: rgba(255,255,255,0.05);
}

.shadow-glow {
    box-shadow: 0 4px 30px var(--accent-glow);
}

/* Header */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    background: rgba(11, 14, 20, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    height: 70px;
    display: flex;
    align-items: center;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
}

.logo-accent {
    color: var(--accent-color);
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    max-width: 90%;
}

/* Mockup Interactive */
.hero-visual {
    position: relative;
    perspective: 1000px;
}

.mockup-window {
    background: #0D1117;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 40px var(--accent-glow);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.mockup-window:hover {
    transform: rotateY(0) rotateX(0);
}

.mockup-header {
    background: #161B22;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.mockup-dots {
    display: flex;
    gap: 6px;
    margin-right: auto;
}

.mockup-dots span {
    width: 12px; height: 12px; border-radius: 50%;
}
.mockup-dots span:nth-child(1) { background: #FF5F56; }
.mockup-dots span:nth-child(2) { background: #FFBD2E; }
.mockup-dots span:nth-child(3) { background: #27C93F; }

.mockup-title {
    font-family: inherit;
    font-size: 0.8rem;
    color: var(--text-secondary);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.mockup-body {
    padding: 32px;
}

.mockup-input-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mockup-input {
    background: #010409;
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 6px;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    min-height: 44px;
    word-break: break-all;
    white-space: pre-wrap;
    display: flex;
    align-items: center;
}

.mockup-input::after {
    content: '|';
    animation: blink 1s step-end infinite;
}

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

.mockup-btn {
    width: 100%;
    margin-top: 16px;
    background: var(--surface-color);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.mockup-btn.active {
    background: var(--accent-color);
    color: #FFF;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 87, 255, 0.5);
}

.mockup-graph {
    margin-top: 24px;
    opacity: 0.3;
    transition: opacity 0.5s;
    height: 100px;
    position: relative;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
}

.mockup-graph.active {
    opacity: 1;
}

.graph-info {
    display: flex;
    justify-content: space-between;
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    margin-bottom: 12px;
}

.graph-info .ping { color: #27C93F; }
.graph-info .speed { color: var(--accent-color); }

.graph-bars {
    display: flex;
    align-items: flex-end;
    height: 60px;
    gap: 2px;
}

.graph-bar {
    flex: 1;
    background: var(--accent-color);
    border-radius: 2px 2px 0 0;
    opacity: 0.8;
    height: 2px;
    transition: height 0.1s linear;
}

/* About Section */
.info-box {
    background: rgba(0, 87, 255, 0.05);
    border-left: 3px solid var(--accent-color);
    padding: 16px 24px;
    border-radius: 0 8px 8px 0;
    font-size: 1rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.2);
}

.feature-icon {
    width: 48px; height: 48px;
    background: rgba(0, 87, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-text {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Download Tabs */
.tabs-container {
    max-width: 800px;
    margin: 0 auto;
}

.tabs-nav {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 16px 32px;
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    flex: 1;
    transition: color 0.3s;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1px; left: 0; width: 100%; height: 2px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.tab-btn.active {
    color: var(--text-primary);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tabs-content {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px;
    min-height: 250px;
    margin-bottom: 32px;
}

.tab-pane {
    display: none;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-icon {
    margin-bottom: 24px;
}

.tab-desc {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto; margin-right: auto;
}

.tab-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab-note {
    font-size: 0.85rem;
    opacity: 0.7;
    margin: 0;
}

/* Instructions */
.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.step-card {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: var(--accent-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.step-card:hover {
    background: var(--surface-color);
}

.step-card:hover::before {
    transform: scaleX(1);
}

.step-num {
    width: 40px; height: 40px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    font-family: 'Fira Code', monospace;
    font-size: 1.2rem;
    margin-bottom: 24px;
    color: var(--accent-color);
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: center;
}

.pricing-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 32px;
    position: relative;
    transition: transform 0.3s;
}

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

.pricing-card.popular {
    border-color: var(--accent-color);
    background: linear-gradient(180deg, rgba(0,87,255,0.1) 0%, var(--surface-color) 100%);
    padding: 48px 32px;
    z-index: 2;
}

.popular-badge {
    position: absolute;
    top: 0; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--accent-color);
    color: #FFF;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
}

.pricing-name {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.pricing-sub {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 4px;
}

.price-val {
    font-size: 2.5rem;
    font-weight: 700;
}

.price-period {
    color: var(--text-secondary);
}

.pricing-total {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.pricing-features li svg {
    width: 20px; height: 20px;
    color: #27C93F;
}

/* Radar Terminal Section */
.radar-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tag-btn {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tag-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.radar-input-wrapper {
    display: flex;
    gap: 12px;
}

.radar-input {
    flex: 1;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    outline: none;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.radar-input:focus {
    border-color: var(--accent-color);
}

.terminal {
    background: #010409;
    border: 1px solid #30363d;
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
    display: flex;
    flex-direction: column;
}

.terminal-header {
    background: #161b22;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #30363d;
}

.terminal-header .dot {
    width: 12px; height: 12px; border-radius: 50%;
}
.terminal-header .red { background: #ff5f56; }
.terminal-header .yellow { background: #ffbd2e; }
.terminal-header .green { background: #27c93f; }

.terminal-title {
    margin-left: auto; margin-right: auto;
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    color: #8b949e;
}

.terminal-body {
    padding: 16px;
    flex: 1;
    overflow-y: auto;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
}

.term-line {
    margin-bottom: 8px;
    word-break: break-all;
}

.term-user { color: #8b949e; }
.term-sys { color: #58a6ff; }
.term-success { color: #3fb950; }
.term-direct { color: #d2a8ff; }

/* FAQ Overlay */
.faq-container {
    max-width: 800px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.faq-item summary {
    padding: 24px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    position: relative;
    color: var(--text-primary);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--accent-color);
    transition: transform 0.3s;
}

.faq-item[open] summary::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-answer {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    border-top: 1px solid transparent;
}

.faq-item[open] .faq-answer {
    border-top-color: rgba(255,255,255,0.05);
    padding-top: 24px;
}

/* Final CTA */
.cta-box {
    background: linear-gradient(135deg, rgba(0,87,255,0.1) 0%, rgba(11,14,20,1) 100%);
    border: 1px solid rgba(0, 87, 255, 0.3);
    border-radius: 24px;
    padding: 80px 40px;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.cta-footer {
    display: flex;
    justify-content: center;
    gap: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: 'Fira Code', monospace;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    background: #06080A;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin: 0 auto 40px; }
    .radar-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .section-title { font-size: 2rem; }
    .hero-title { font-size: 2.5rem; }
    .steps-container { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; gap: 40px; }
    .pricing-card.popular { padding: 40px 32px; }
    .tabs-nav { flex-direction: column; }
    .nav { display: none; } /* Simplified mobile header */
    .cta-footer { flex-direction: column; gap: 8px; }
}