/* /assets/css/main.css */

:root {
    --bg-base: #0B0E11;
    --bg-surface: #161A20;
    --bg-surface-hover: #1E232B;
    --text-primary: #EAECEF;
    --text-secondary: #848E9C;
    --border-color: #252A31;
    --accent-blue: #2979FF;
    --accent-green: #00C853;
    --accent-red: #FF3D00;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* --- Resets & Base Velocity Optimization --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

/* --- Persistent Top-Bar Navigation Architecture --- */
.site-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

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

.main-navigation {
    height: 100%;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 100%;
}

.nav-menu > li {
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
}

.nav-menu > li > a, 
.dropbtn {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border-radius: 4px;
}

.nav-menu > li > a:hover, 
.dropdown:hover .dropbtn {
    color: var(--text-primary);
    background-color: var(--bg-surface-hover);
}

/* Dropdown Framework */
.dropdown-content {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    background-color: var(--bg-surface);
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
    border-radius: 0 0 6px 6px;
    overflow: hidden;
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-hover);
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Header Conversion Button */
.btn-pro {
    background-color: var(--accent-blue);
    color: #fff;
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: opacity 0.15s ease;
}

.btn-pro:hover {
    opacity: 0.9;
}

/* --- Layout Wrappers --- */
.main-content-wrapper {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* --- Data Table Framework (Noise-Stripped UI) --- */
.table-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
    margin-top: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th {
    background-color: var(--bg-base);
    color: var(--text-secondary);
    padding: 1rem;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

/* Custom Visual Indicators */
.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-buy { background-color: rgba(0, 200, 83, 0.15); color: var(--accent-green); }
.badge-sell { background-color: rgba(255, 61, 0, 0.15); color: var(--accent-red); }

.mono-num {
    font-family: var(--font-mono);
    font-weight: 500;
}

.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }

/* --- Footer Architecture --- */
.site-footer {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    margin-top: auto;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-links {
    margin-top: 0.75rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

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