.container { flex: 1 1 auto; overflow-y: auto; position: relative; z-index: 10; width: 100%; max-width: 1200px; margin: 0 auto; padding: 12px 15px; }
.header { background: linear-gradient(180deg, rgba(13,17,23,0.95) 0%, rgba(13,17,23,0.8) 100%); border: 1px solid var(--border-color); border-bottom: 2px solid var(--accent-secondary); padding: 10px 20px; flex-shrink: 0; }
.header-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.logo-container { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.5rem; color: var(--accent-primary); }
.logo-text { font-family: var(--font-mono); font-size: 1.2rem; font-weight: 900; letter-spacing: 3px; white-space: nowrap; }
.logo-bracket { color: var(--accent-primary); }
.logo-subtitle { font-family: var(--font-mono); font-size: 0.5rem; letter-spacing: 2px; color: var(--text-secondary); opacity: 0.6; }
.footer { background: linear-gradient(0deg, rgba(13,17,23,0.95) 0%, rgba(13,17,23,0.8) 100%); border: 1px solid var(--border-color); border-top: 2px solid var(--accent-secondary); padding: 8px 20px; font-size: 0.65rem; flex-shrink: 0; text-align: center; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
#mainContent { flex: 1 0 auto; }
.page { display: none; }
.page.active { display: block; }
.section-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.section-title { font-family: var(--font-mono); letter-spacing: 2px; font-size: 1rem; }