:root {
    --bg-dark: #000000;
    --bg-panel: #111111;
    --bg-surface: #1A1A1A;
    --border-color: #333333;
    --neon-green: #39FF14;
    --text-main: #FFFFFF;
    --text-mute: #888888;
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Roboto', sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: var(--font-sans); background-color: var(--bg-dark); color: var(--text-main); display: flex; min-height: 100vh; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.text-mute { color: var(--text-mute); line-height: 1.5; }
.text-neon { color: var(--neon-green) !important; }

/* Layout Grid */
.layout-app { display: grid; grid-template-columns: 280px 1fr; width: 100%; }

/* Sidebar */
.sidebar-nav { background-color: var(--bg-panel); border-right: 1px solid var(--border-color); padding: 30px; display: flex; flex-direction: column; height: 100vh; position: sticky; top: 0; }
.brand-terminal { font-family: var(--font-mono); font-weight: 800; font-size: 1.4rem; letter-spacing: -1px; margin-bottom: 50px; }
.prompt { color: var(--neon-green); font-weight: 800; }
.side-menu { flex-grow: 1; display: flex; flex-direction: column; gap: 10px; }
.menu-label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-mute); letter-spacing: 2px; margin-bottom: 15px; }
.side-menu a { padding: 12px 15px; border-radius: 6px; font-weight: 500; display: flex; align-items: center; gap: 15px; transition: background 0.2s, color 0.2s; }
.side-menu a:hover { background-color: var(--bg-surface); }
.side-menu a.active { background-color: rgba(57, 255, 20, 0.1); color: var(--neon-green); border-left: 3px solid var(--neon-green); }
.icon { font-family: var(--font-mono); opacity: 0.7; }
.sidebar-footer { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-mute); border-top: 1px solid var(--border-color); padding-top: 20px; }

/* Buttons */
.btn-neon-cyber { display: inline-block; background: transparent; border: 1px solid var(--neon-green); color: var(--neon-green); font-family: var(--font-mono); font-size: 0.9rem; font-weight: 700; padding: 12px 20px; text-transform: uppercase; cursor: pointer; transition: all 0.2s; box-shadow: 0 0 10px rgba(57, 255, 20, 0.1); text-align: center; }
.btn-neon-cyber:hover { background: rgba(57, 255, 20, 0.15); box-shadow: 0 0 15px rgba(57, 255, 20, 0.3); }
.btn-sys-exec { background: var(--text-main); color: var(--bg-dark); border: none; font-family: var(--font-mono); font-size: 1rem; font-weight: 800; padding: 15px; width: 100%; cursor: pointer; margin-top: 20px; transition: background 0.2s; }
.btn-sys-exec:hover { background: var(--neon-green); }
.btn-neon-small { background: var(--neon-green); color: var(--bg-dark); border: none; font-family: var(--font-mono); padding: 5px 15px; cursor: pointer; font-weight: 800; }

/* Main Area */
.main-content-area { padding: 40px; display: flex; flex-direction: column; overflow-y: auto; }
.page-title-cyber { margin-bottom: 40px; border-bottom: 1px dashed var(--border-color); padding-bottom: 20px; }
.page-title-cyber h1 { font-family: var(--font-mono); font-size: 2.5rem; color: var(--text-main); margin-bottom: 10px; }

/* Dashboard Widgets */
.dashboard-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.widget { background-color: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 4px; display: flex; flex-direction: column; }
.span-2-col { grid-column: span 2; }
.w-header { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-mute); padding: 12px 20px; border-bottom: 1px solid var(--border-color); background-color: #151515; letter-spacing: 1px; }
.w-body { padding: 30px 20px; flex-grow: 1; display: flex; flex-direction: column; justify-content: center; }
.neon-border-widget { border-color: var(--neon-green); box-shadow: inset 0 0 20px rgba(57, 255, 20, 0.05); }
.success-widget { border-left: 5px solid var(--neon-green); padding: 20px; }

/* Widget Content */
.split-hero { flex-direction: row; gap: 40px; align-items: center; }
.info-side { flex: 1; }
.chart-side { flex: 1; text-align: center; }
.cyber-chart-img { max-width: 100%; border: 1px solid var(--border-color); border-radius: 4px; opacity: 0.8; filter: hue-rotate(90deg) contrast(1.2); }
.big-metric { font-family: var(--font-mono); font-size: 4rem; font-weight: 800; letter-spacing: -2px; }
.display-neon { color: var(--neon-green); text-shadow: 0 0 20px rgba(57, 255, 20, 0.4); }

.cyber-bullets { list-style: none; }
.cyber-bullets li { position: relative; padding-left: 20px; margin-bottom: 10px; font-family: var(--font-mono); font-size: 0.9rem; color: var(--text-main); }
.cyber-bullets li::before { content: '>'; position: absolute; left: 0; color: var(--neon-green); }

.code-block { display: block; background: var(--bg-dark); border: 1px solid var(--border-color); padding: 20px; font-family: var(--font-mono); color: var(--neon-green); font-size: 0.9rem; border-radius: 4px; overflow-x: auto; white-space: pre; }

/* Footer / Form */
.cyber-footer { margin-top: 60px; padding-top: 40px; border-top: 2px dashed var(--border-color); }
.grid-2-col { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
.form-panel-cyber h3, .sys-info-panel h3 { font-family: var(--font-mono); font-size: 1.5rem; margin-bottom: 10px; }
.terminal-form { background: var(--bg-panel); padding: 30px; border: 1px solid var(--border-color); border-radius: 4px; }
.t-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.t-group label { display: block; font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-mute); margin-bottom: 8px; }
.t-group input, .t-group select { width: 100%; background: var(--bg-dark); border: 1px solid var(--border-color); color: var(--text-main); padding: 12px; font-family: var(--font-mono); outline: none; transition: border-color 0.2s; }
.t-group input:focus, .t-group select:focus { border-color: var(--neon-green); background: rgba(57,255,20,0.05); }
.sys-list { list-style: none; font-family: var(--font-mono); font-size: 0.9rem; }
.sys-list li { margin-bottom: 15px; }
.legal-cyber { border-top: 1px solid var(--border-color); padding-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.legal-cyber a { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-mute); }
.legal-cyber a:hover { color: var(--text-main); }

/* Cookie */
.cookie-cyber-box { position: fixed; bottom: 30px; right: 30px; background: var(--bg-panel); border: 1px solid var(--neon-green); padding: 0; z-index: 1000; box-shadow: 0 10px 30px rgba(0,0,0,0.5); display: none; width: 350px; }
.c-header { background: var(--neon-green); color: var(--bg-dark); font-family: var(--font-mono); font-size: 0.8rem; padding: 5px 10px; font-weight: 800; }
.c-body { padding: 20px; font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-mute); }
.c-body button { margin-top: 15px; }

/* Mobile */
.mobile-header-cyber { display: none; background: var(--bg-panel); padding: 20px; border-bottom: 1px solid var(--border-color); justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 100; }
.burger-cyber { background: transparent; border: 1px solid var(--border-color); color: var(--neon-green); font-size: 1.5rem; padding: 5px 10px; cursor: pointer; }
.mobile-menu-cyber { display: none; flex-direction: column; background: var(--bg-panel); border-bottom: 1px solid var(--border-color); position: absolute; width: 100%; z-index: 99; }
.mobile-menu-cyber.active { display: flex; }
.mobile-menu-cyber a { padding: 15px 20px; border-bottom: 1px solid var(--bg-surface); font-family: var(--font-mono); font-size: 0.9rem; }

@media (max-width: 900px) {
    .layout-app { grid-template-columns: 1fr; display: block; }
    .sidebar-nav { display: none; }
    .mobile-header-cyber { display: flex; }
    .main-content-area { padding: 20px; }
    .dashboard-grid { grid-template-columns: 1fr; }
    .span-2-col { grid-column: span 1; }
    .split-hero { flex-direction: column; text-align: center; }
    .grid-2-col { grid-template-columns: 1fr; }
    .t-row { grid-template-columns: 1fr; gap: 15px; }
    .big-metric { font-size: 3rem; }
    .cookie-cyber-box { right: 20px; left: 20px; width: auto; bottom: 20px; }
}