:root {
    --bg-dark: #0a0a0a;
    --bg-panel: #141414;
    --neon-green: #00ff88;
    --neon-blue: #00d4ff;
    --text-main: #e0e0e0;
    --glass: rgba(255, 255, 255, 0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Montserrat', sans-serif;
    overflow-x: hidden;
}

h1, h2, h3, .logo { font-family: 'Orbitron', sans-serif; }

/* HEADER */
header {
    display: flex;
    justify-content: space-between;
    padding: 20px 50px;
    align-items: center;
    position: fixed;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #222;
}

.logo { font-size: 1.5rem; font-weight: bold; color: white; letter-spacing: 2px; }
.dot { color: var(--neon-green); }

nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.9rem;
    transition: 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}
nav a:hover { color: var(--neon-green); }

/* HERO */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, #000 100%);
    padding-top: 60px;
}

.hero h1 { font-size: 4rem; line-height: 1.1; margin-bottom: 20px; }
.neon-text { 
    color: var(--neon-green);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.mission { font-size: 1.2rem; margin-bottom: 40px; font-style: italic; color: #888; }

.live-stats { display: flex; justify-content: center; gap: 30px; margin-bottom: 40px; }
.stat-box {
    border: 1px solid var(--neon-green);
    padding: 15px 25px;
    border-radius: 10px;
    background: var(--glass);
    min-width: 140px;
}
.stat-box span { display: block; font-size: 1.5rem; font-weight: bold; color: white; }
.stat-box small { color: var(--neon-green); font-size: 0.8rem; text-transform: uppercase; }

.cta-btn {
    padding: 15px 40px;
    background: var(--neon-green);
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 30px;
    transition: 0.3s;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
    display: inline-block;
}
.cta-btn:hover { background: white; box-shadow: 0 0 30px rgba(255, 255, 255, 0.6); }

/* PANELS */
.panel-section { padding: 100px 50px; min-height: 80vh; }
.panel-section h2 { text-align: center; font-size: 2.5rem; margin-bottom: 50px; }
.panel-section h2 i { color: var(--neon-green); margin-right: 10px; }

.container { display: flex; flex-wrap: wrap; justify-content: center; gap: 30px; }

.input-card, .result-card {
    background: var(--bg-panel);
    padding: 30px;
    border-radius: 15px;
    width: 100%;
    max-width: 400px;
    border: 1px solid #333;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: #aaa; font-size: 0.9rem; }
.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    background: #222;
    border: 1px solid #444;
    color: white;
    border-radius: 5px;
    outline: none;
    transition: 0.3s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--neon-green); }

.action-btn {
    width: 100%;
    padding: 15px;
    background: transparent;
    border: 2px solid var(--neon-green);
    color: var(--neon-green);
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    font-size: 1rem;
    text-transform: uppercase;
}
.action-btn:hover { background: var(--neon-green); color: black; }

.hidden { display: none; }
.score-circle {
    width: 120px; height: 120px;
    border-radius: 50%;
    border: 5px solid var(--neon-green);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 0 15px rgba(0,255,136,0.2);
}
.score-circle span { font-size: 2.5rem; font-weight: bold; }
.suggestion-box {
    margin-top: 20px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.05);
    border-left: 3px solid var(--neon-green);
    font-size: 0.9rem;
    line-height: 1.5;
}

.neon-green { color: var(--neon-green); }
.neon-red { color: #ff4d4d; }

/* SIMULATOR SLIDERS */
.sim-container { flex-direction: column; align-items: center; max-width: 600px; margin: 0 auto; }
.sliders { width: 100%; background: #1a1a1a; padding: 20px; border-radius: 10px; }
.slider-group { margin-bottom: 20px; }
.slider-group input { width: 100%; margin-top: 10px; cursor: pointer; accent-color: var(--neon-green); }

.sim-outputs { display: flex; gap: 20px; margin-top: 20px; width: 100%; justify-content: center; }
.sim-card {
    background: #222;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    flex: 1;
    border: 1px solid #333;
}
.sim-card i { font-size: 2rem; color: var(--neon-blue); margin-bottom: 10px; }

/* ABOUT ME */
.about-section { padding: 80px 20px; text-align: center; background: #0f0f0f; }
.profile-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    background: #1a1a1a;
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #333;
    position: relative;
    overflow: hidden;
}
.profile-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 5px;
    background: var(--neon-green);
}
.profile-img img {
    width: 150px; height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--neon-green);
    margin-bottom: 20px;
}
.profile-info h3 { font-size: 2rem; margin-bottom: 5px; color: white; }
.profile-info .role { color: var(--neon-green); margin-bottom: 15px; font-weight: 600; }
.profile-info .bio { color: #aaa; line-height: 1.6; margin-bottom: 25px; }

.social-links a {
    color: white;
    font-size: 1.5rem;
    margin: 0 10px;
    transition: 0.3s;
}
.social-links a:hover { color: var(--neon-green); transform: scale(1.2); }

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .container { flex-direction: column; align-items: center; }
    .sim-outputs { flex-direction: column; }
    .input-card, .result-card { width: 100%; }
}