:root {
    --bg-dark: #0a0c10;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-bridge: #ff00ff;
    /* Neon Magenta for sensory bridge */
    --accent-blue: #00d1ff;
    --text-main: #ffffff;
    --text-dim: #a0a0a0;
    --border: rgba(255, 255, 255, 0.1);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: radial-gradient(circle at 50% 50%, rgba(255, 0, 255, 0.03) 0%, transparent 50%);
}

/* Header & Nav (Consistent with system) */
.glass-header {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
}

.logo span {
    color: var(--accent-bridge);
    text-shadow: 0 0 10px var(--accent-bridge);
}

.main-nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    text-decoration: none !important;
    color: #ffffff !important;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.7;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-bridge) !important;
    opacity: 1;
    text-shadow: 0 0 10px var(--accent-bridge);
}

.audio-toggle {
    cursor: pointer;
    display: flex;
    gap: 8px;
    color: var(--accent-bridge);
}

/* Main Content */
.sensory-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.intro-box h1 {
    font-size: 48px;
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 15px;
    background: linear-gradient(90deg, #fff, var(--accent-bridge));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-dim);
    font-size: 18px;
    max-width: 700px;
    margin-bottom: 60px;
}

/* Grid */
.training-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.training-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.training-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-bridge);
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.1);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.training-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.training-card p {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 20px;
}

.card-meta {
    font-size: 12px;
    color: var(--accent-bridge);
    font-weight: 700;
    text-transform: uppercase;
}

/* Active View */
.active-view {
    background: var(--card-bg);
    border-radius: 32px;
    padding: 60px;
    border: 1px solid var(--border);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn-back {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 16px;
    margin-bottom: 30px;
    transition: 0.3s;
}

.btn-back:hover {
    color: var(--accent-bridge);
}

#instructionContent {
    text-align: center;
}

#moduleTitle {
    font-size: 32px;
    margin-bottom: 15px;
}

#moduleDesc {
    color: var(--text-dim);
    margin-bottom: 40px;
}

.visual-guide-area {
    width: 300px;
    height: 300px;
    margin: 40px auto;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-ring {
    width: 250px;
    height: 250px;
    border: 4px solid var(--accent-bridge);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--accent-bridge);
}

#timerText {
    font-size: 48px;
    font-family: 'Orbitron', sans-serif;
}

.steps-area {
    text-align: left;
    max-width: 600px;
    margin: 40px auto;
}

.step-item {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

.step-num {
    width: 24px;
    height: 24px;
    background: var(--accent-bridge);
    color: black;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    flex-shrink: 0;
}

.btn-primary {
    background: var(--accent-bridge);
    color: black;
    border: none;
    padding: 18px 60px;
    border-radius: 40px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 10px 20px rgba(255, 0, 255, 0.2);
}

.btn-primary:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

@media (max-width: 900px) {
    .training-grid {
        grid-template-columns: 1fr;
    }
}