:root {
    --bg: #030303;
    --accent: #00ff8c;
    --glass: rgba(255, 255, 255, 0.01);
    --border: rgba(0, 255, 140, 0.15);
}

/* Zorunlu Siyah Arka Plan */
html, body { background-color: #030303 !important; margin: 0; padding: 0; width: 100%; height: 100%; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { color: #fff; font-family: 'Space Grotesk', sans-serif; overflow: hidden; }

#bg-canvas { position: fixed; top: 0; left: 0; z-index: -1; opacity: 0.2; }
.background-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image: radial-gradient(circle at 50% 50%, transparent, #030303),
                      linear-gradient(rgba(0, 255, 140, 0.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0, 255, 140, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px; z-index: -2;
}

#security-loader {
    position: fixed; width: 100%; height: 100%; background: #000;
    z-index: 9999; display: flex; flex-direction: column; justify-content: center; align-items: center;
    transition: 1s cubic-bezier(0.8, 0, 0.2, 1);
}
.spinner { width: 40px; height: 40px; border: 2px solid var(--accent); border-top: 2px solid transparent; border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 15px; }
@keyframes spin { to { transform: rotate(360deg); } }

nav { display: flex; justify-content: space-between; align-items: center; padding: 25px 10%; border-bottom: 1px solid var(--border); position: fixed; width: 100%; top: 0; z-index: 1000; background: rgba(3,3,3,0.9); backdrop-filter: blur(10px); }
.logo { font-family: 'Syncopate'; font-size: 1.2rem; letter-spacing: 5px; }
.logo span { color: var(--accent); text-shadow: 0 0 10px var(--accent); }

.nav-item { background: none; border: none; color: #555; margin-left: 30px; font-family: 'Syncopate'; font-size: 0.7rem; cursor: pointer; transition: 0.4s; }
.nav-item.active, .nav-item:hover { color: var(--accent); }

.tab-pane { display: none; height: 100vh; padding: 140px 10% 50px; overflow-y: auto; }
.tab-pane.active { display: block; animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.hero { display: flex; align-items: center; justify-content: space-around; height: 70vh; }
#canvas-3d { width: 450px; height: 450px; }
.glitch-text { font-family: 'Syncopate'; font-size: 4.5rem; letter-spacing: -3px; }

.section-title { font-family: 'Syncopate'; font-size: 0.9rem; color: var(--accent); margin-bottom: 30px; letter-spacing: 6px; border-left: 3px solid var(--accent); padding-left: 15px; }
.glass { background: var(--glass); border: 1px solid var(--border); padding: 30px; backdrop-filter: blur(10px); margin-bottom: 20px; }
.grid-three { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

.clean-list { list-style: none; }
.clean-list li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 0.85rem; display: flex; align-items: center; }
.clean-list li span { font-size: 0.6rem; padding: 2px 6px; border: 1px solid var(--accent); color: var(--accent); margin-right: 10px; font-weight: bold; }

.glass-table { width: 100%; border-collapse: collapse; text-align: left; }
.glass-table th, .glass-table td { padding: 15px; border-bottom: 1px solid var(--border); font-size: 0.8rem; }
.glass-table th { color: var(--accent); font-family: 'Syncopate'; }

.tab-pane::-webkit-scrollbar { width: 4px; }
.tab-pane::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 10px; }