:root {
    --bg-dark: #0a0e17;
    --card-bg: #111827;
    --card-border: #1f2937;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-purple: #8b5cf6;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background: var(--bg-dark); color: var(--text-main); line-height: 1.6; }
header { background: rgba(17, 24, 39, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--card-border); position: sticky; top: 0; z-index: 50; }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; }
.logo { font-size: 1.25rem; font-weight: 700; color: #fff; text-decoration: none; display: flex; align-items: center; gap: 0.5rem; }
.logo span { color: var(--accent-cyan); }
nav a { color: var(--text-muted); text-decoration: none; margin-left: 1.25rem; font-size: 0.95rem; transition: color 0.2s; }
nav a:hover, nav a.active { color: var(--accent-cyan); font-weight: 600; }
.container { max-width: 1200px; margin: 0 auto; padding: 2.5rem 1.5rem; }
.hero { text-align: center; padding: 3rem 1rem; }
.hero h1 { font-size: 2.75rem; margin-bottom: 1rem; background: linear-gradient(135deg, #fff 30%, var(--accent-cyan) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 1.2rem; color: var(--text-muted); max-width: 750px; margin: 0 auto 2rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 12px; padding: 1.75rem; transition: transform 0.2s, border-color 0.2s; }
.card:hover { transform: translateY(-3px); border-color: var(--accent-cyan); }
.card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; color: #fff; display: flex; align-items: center; gap: 0.5rem; }
.card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1rem; }
.tag { display: inline-block; padding: 0.25rem 0.6rem; border-radius: 6px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.tag-success { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); border-color: rgba(16, 185, 129, 0.3); }
.tag-purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); border-color: rgba(139, 92, 246, 0.3); }
.table-wrap { overflow-x: auto; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 12px; margin-top: 1.5rem; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 1rem 1.25rem; border-bottom: 1px solid var(--card-border); font-size: 0.95rem; }
th { background: rgba(255, 255, 255, 0.03); color: var(--text-muted); font-weight: 600; }
tr:hover { background: rgba(255, 255, 255, 0.02); }
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 600; text-decoration: none; background: var(--accent-cyan); color: #0a0e17; transition: opacity 0.2s; }
.btn:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 1px solid var(--accent-cyan); color: var(--accent-cyan); }
footer { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); font-size: 0.9rem; border-top: 1px solid var(--card-border); margin-top: 4rem; }
code { background: rgba(0,0,0,0.4); padding: 0.2rem 0.4rem; border-radius: 4px; font-family: monospace; color: var(--accent-cyan); }

.btn-disabled {
    opacity: 0.55 !important;
    cursor: not-allowed !important;
    background: rgba(255, 255, 255, 0.08) !important;
    color: #9ca3af !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    pointer-events: none !important;
    user-select: none !important;
    box-shadow: none !important;
    transform: none !important;
}