/* Reset & CSS Variables (High-Trust Transparent Palette) */
:root {
    /* Dark Mode (Default) - Deep slate-charcoal, Emerald, Ice-blue */
    --bg-color: #0D1117;
    --text-color: #F1F5F9;
    --text-light: #8B949E;
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-color: #10B981;
    --primary-hover: #059669;
    --accent-color: #38BDF8;
    --card-bg: rgba(255, 255, 255, 0.03);
    --header-bg: rgba(13, 17, 23, 0.85);
    --btn-text: #FFFFFF;
}

body.light-mode {
    /* Light Mode */
    --bg-color: #F8FAFC;
    --text-color: #0F172A;
    --text-light: #475569;
    --border-color: #E2E8F0;
    --primary-color: #059669;
    --primary-hover: #047857;
    --accent-color: #0284C7;
    --card-bg: #FFFFFF;
    --header-bg: rgba(248, 250, 252, 0.85);
    --btn-text: #FFFFFF;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    font-weight: 500;
    font-size: 0.95rem;
}

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

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.live-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(16, 185, 129, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid rgba(16, 185, 129, 0.2);
    user-select: none;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 0 rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.btn-login {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    padding: 6px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.2s;
}

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

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--card-bg);
    border-color: var(--text-light);
}

/* Layout Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 1.5rem;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Hero Section */
.hero {
    padding: 10rem 1.5rem 6rem;
    text-align: center;
    background: linear-gradient(180deg, var(--card-bg) 0%, var(--bg-color) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    max-width: 750px;
    margin-inline: auto;
}

/* Uptime Badge */
.uptime-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.95rem;
    margin: 1.5rem auto 3rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.uptime-badge svg { color: var(--primary-color); }

/* Telemetry Console */
.telemetry-console {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 3rem;
    text-align: left;
}

.telemetry-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.3s ease;
    cursor: default;
}

.telemetry-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.1);
    transform: translateY(-2px);
}

.tele-head {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.tele-head .ping {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 4px;
    font-variant-numeric: tabular-nums;
}

.tele-metrics .metric {
    margin-bottom: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tele-metrics .bar {
    width: 60%;
    background: var(--border-color);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
}

.tele-metrics .fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 1s ease-in-out;
}

/* Utilities */
.bg-accent { background: var(--accent-color) !important; }
.text-emerald { color: var(--primary-color) !important; }
.text-accent { color: var(--accent-color) !important; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    user-select: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--btn-text);
    border: none;
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.3);
    color: var(--btn-text);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-block {
    display: block;
    width: 100%;
    padding: 1rem;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

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

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

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--btn-text);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.price {
    font-size: 3rem;
    font-weight: 800;
    margin: 1.5rem 0;
    color: var(--text-color);
}

.price span {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 500;
}

.pricing-features {
    margin-bottom: 1.5rem;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.1rem;
}

/* Cost Breakdown Details */
.cost-breakdown {
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    background: transparent;
    border: none;
    text-align: left;
}
.cost-breakdown summary {
    padding: 0.75rem;
    font-size: 0.85rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cost-breakdown summary::-webkit-details-marker { display: none; }
.cost-breakdown summary::after { content: "▼"; font-size: 0.7rem; color: var(--text-light); }
.cost-breakdown[open] summary::after { content: "▲"; }
.cost-details {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 6px 6px;
    margin-top: -4px;
    background: rgba(0,0,0,0.1);
}
.cost-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}
.cost-row:last-child {
    margin-bottom: 0;
    font-weight: 700;
    color: var(--text-color);
    border-top: 1px dashed var(--border-color);
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

/* FAQ Details */
details:not(.cost-breakdown) {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

details:not(.cost-breakdown) summary {
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

details:not(.cost-breakdown) summary::-webkit-details-marker {
    display: none;
}

details:not(.cost-breakdown) summary::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--text-light);
    transition: transform 0.3s ease;
}

details[open]:not(.cost-breakdown) summary::after {
    content: "−";
    color: var(--primary-color);
}

details[open]:not(.cost-breakdown) {
    border-color: var(--primary-color);
}

details:not(.cost-breakdown) p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 1.5rem;
    text-align: center;
    color: var(--text-light);
    background-color: var(--bg-color);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a { font-weight: 500; }
.footer-links a:hover { color: var(--primary-color); }

/* Sub-page Specific Styles */
.page-header {
    padding: 10rem 1.5rem 4rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
}
.page-header h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.5px; }
.page-content { max-width: 800px; margin: 0 auto; padding: 4rem 1.5rem; font-size: 1.1rem; }
.page-content h2 { margin: 2.5rem 0 1.25rem; font-size: 1.75rem; color: var(--text-color); }
.page-content h3 { margin: 1.5rem 0 1rem; color: var(--text-color); }
.page-content p { margin-bottom: 1.25rem; color: var(--text-light); }
.page-content ul { padding-left: 1.5rem; margin-bottom: 1.5rem; list-style: disc; color: var(--text-light); }
.page-content li { margin-bottom: 0.5rem; }

/* Responsive (Media Queries) */
@media (max-width: 992px) {
    .nav-links { gap: 1rem; font-size: 0.9rem; }
    .telemetry-console { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        padding-top: 1.25rem;
    }
    
    .logo { width: 100%; margin-bottom: 1rem; text-align: center; }
    
    .header-right { position: absolute; right: 1.5rem; top: 1.25rem; gap: 1rem; }
    
    .live-status { display: none; } /* Hide on mobile to save space */
    
    .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-top: 0.5rem;
        gap: 1.25rem;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.5rem;
    }
    
    .nav-links::-webkit-scrollbar { display: none; }
    .nav-links { -ms-overflow-style: none; scrollbar-width: none; }

    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .telemetry-console { grid-template-columns: 1fr; }

    .hero { padding-top: 10rem; }
    .hero h1 { font-size: 2.2rem; }

    .container { padding-top: 3rem; padding-bottom: 3rem; }

    .btn { padding: 1rem 2rem; font-size: 1.125rem; }
}