/* Core Styling Declarations and Variable Definitions */
:root {
    --bg-dark: #0a0e17;
    --bg-surface: #121824;
    --bg-surface-elevated: #1c2638;
    --primary: #00ffcc;
    --primary-glow: rgba(0, 255, 204, 0.15);
    --text-main: #f0f4f8;
    --text-muted: #8a99ad;
    --accent-red: #ff4a5a;
    --border-color: #26354d;
    --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

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

/* Header & Nav Layout */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.logo span {
    color: var(--primary);
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-right: 2rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Global Components / Buttons */
.btn {
    padding: 0.6rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: var(--bg-surface-elevated);
}

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

/* Hero Section Base Rules */
.hero-section {
    padding: 8rem 5% 6rem 5%;
    text-align: center;
    background: radial-gradient(circle at top center, #14233c 0%, var(--bg-dark) 70%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

h1 {
    font-size: 3rem;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Global Content Layout Framework */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 5%;
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.section-subtitle {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 3rem;
}

/* Dynamic ROI Simulator Grid Configuration */
.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    background-color: var(--bg-surface);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.control-group {
    margin-bottom: 2rem;
}

label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
    background: var(--bg-surface-elevated);
    height: 6px;
    border-radius: 3px;
    outline: none;
}

select {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    outline: none;
    font-size: 1rem;
}

.numeric-display {
    display: block;
    margin-top: 0.5rem;
    font-weight: bold;
    color: var(--primary);
}

.calc-results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.result-card {
    background-color: var(--bg-surface-elevated);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.result-card.secondary {
    border-left-color: var(--text-muted);
}

.result-card h3 {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.metric-highlight {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-main);
}

/* Live Terminal Dashboard UI */
.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-surface);
    padding: 1rem 1.5rem;
    border-radius: 12px 12px 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
}

.terminal-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pulse-indicator {
    width: 10px;
    height: 10px;
    background-color: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary);
    animation: pulse 1.8s infinite;
}

.pair-selector {
    display: flex;
    gap: 0.5rem;
}

.pair-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
}

.pair-btn.active {
    border-color: var(--primary);
    color: var(--primary);
    background-color: rgba(0, 255, 204, 0.05);
}

.terminal-body {
    display: grid;
    grid-template-columns: 2fr 1fr;
    background-color: #0d131f;
    border: 1px solid var(--border-color);
    border-radius: 0 0 12px 12px;
    height: 400px;
}

.canvas-wrapper {
    padding: 1.5rem;
    position: relative;
    border-right: 1px solid var(--border-color);
}

canvas {
    width: 100%;
    height: 100%;
}

.log-stream-wrapper {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.log-stream-wrapper h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    letter-spacing: 0.5px;
}

.log-stream {
    flex-grow: 1;
    font-family: monospace;
    font-size: 0.8rem;
    overflow-y: auto;
    color: #a4b3c6;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.log-entry {
    animation: fadeIn 0.3s ease;
}

.log-entry.buy { color: var(--primary); }
.log-entry.sell { color: var(--accent-red); }

/* Animation Declarations */
@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.main-footer {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive Adaptive Adjustments */
@media (max-width: 768px) {
    .calc-grid, .terminal-body {
        grid-template-columns: 1fr;
    }
    .terminal-body {
        height: auto;
    }
    .canvas-wrapper {
        height: 250px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .log-stream {
        height: 150px;
    }
    h1 { font-size: 2.2rem; }
}