:root {
    --le-blue: #002347;
    /* Deep Navy Blue */
    --le-gold: #C5B358;
    /* Badge Gold */
    --le-silver: #E5E4E2;
    /* Platinum/Silver */
    --le-white: #FFFFFF;
    --glass-bg: rgba(0, 35, 71, 0.85);
    /* Blue-tinted glass */
    --glass-border: 1px solid var(--le-gold);
    --text-glow: 0 0 2px var(--le-silver);
}

body {
    background-color: #0d1117;
    color: var(--le-silver);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    /* More professional font */
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background: linear-gradient(135deg, #02111b 0%, #002347 100%);
    min-height: 100vh;
}

h1,
h2,
h3 {
    text-transform: uppercase;
    color: var(--le-gold);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    text-align: center;
    letter-spacing: 1px;
}

.container {
    max-width: 1400px;
    /* Wider for dashboard */
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--le-gold);
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.3);
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 80px;
    width: auto;
    /* Ensure visibility against dark background if logos are dark */
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.4));
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.1);
    filter: drop-shadow(0 0 12px rgba(197, 179, 88, 0.6));
    /* Gold glow on hover */
}

.status-indicator {
    font-size: 0.9rem;
    padding: 5px 15px;
    border: 1px solid var(--le-silver);
    background: var(--le-blue);
    color: var(--le-white);
    border-radius: 4px;
}

/* Three Pillars Layout */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.pillar-card {
    background: linear-gradient(180deg, rgba(0, 35, 71, 0.9) 0%, rgba(2, 17, 27, 0.95) 100%);
    border: 1px solid var(--le-gold);
    border-top: 4px solid var(--le-gold);
    /* Badge accent top */
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
}

.pillar-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(197, 179, 88, 0.1);
}

.pillar-title {
    border-bottom: 1px solid var(--le-silver);
    color: var(--le-white);
    margin-bottom: 20px;
    padding-bottom: 10px;
    font-weight: 600;
}

/* Buttons */
.matrix-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--le-silver);
    color: var(--le-silver);
    padding: 12px 15px;
    margin: 5px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.2s;
    width: 100%;
    border-radius: 4px;
}

.matrix-btn:hover,
.matrix-btn.active {
    background: var(--le-gold);
    color: #000;
    border-color: var(--le-gold);
    box-shadow: 0 0 15px rgba(197, 179, 88, 0.4);
    font-weight: bold;
}

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.aggression-meter {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-top: 15px;
}

.level-btn {
    flex: 1;
    font-size: 0.85rem;
    border-color: #555;
    background: rgba(0, 0, 0, 0.3);
}

.level-btn:hover,
.level-btn.active {
    background: #d9534f;
    /* Alert Red for Aggression */
    color: white;
    box-shadow: none;
    border: 1px solid red;
}

/* Role Selection */
#role-selector {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.hidden {
    display: none !important;
}


/* Instructor Dashboard Redesign */
.dashboard-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 35, 71, 0.9);
    border: 1px solid var(--le-gold);
    padding: 15px 25px;
    border-radius: 8px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.toolbar-title {
    margin: 0;
    color: var(--le-white);
    font-size: 1.2rem;
    text-align: left;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 25px;
}

.chart-container {
    background: rgba(0, 35, 71, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--le-gold);
    border-radius: 6px;
    padding: 15px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
}

.chart-container h4 {
    margin-top: 0;
    color: var(--le-silver);
    font-size: 0.9rem;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.feedback-ticker {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--le-silver);
    padding: 10px;
    border-radius: 4px;
    font-family: monospace;
    color: var(--le-green);
    height: 150px;
    overflow-y: auto;
}

/* Modal for QR Code */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: var(--le-blue);
    border: 2px solid var(--le-gold);
    padding: 40px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 0 30px rgba(197, 179, 88, 0.3);
}

.close-modal {
    margin-top: 20px;
    background: transparent;
    border: 1px solid var(--le-silver);
    color: var(--le-silver);
    padding: 5px 15px;
    cursor: pointer;
}

/* Instructor Dashboard specific */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feedback-log {
    height: 300px;
    overflow-y: auto;
    border: var(--glass-border);
    padding: 10px;
    font-size: 0.9rem;
}

.log-entry {
    margin-bottom: 5px;
    border-bottom: 1px solid #333;
}

/* Locked Session State */
.locked-session {
    filter: grayscale(100%);
    pointer-events: none;
    user-select: none;
}

.locked-session .dashboard-toolbar {
    filter: none;
    /* Keep toolbar active for instructor to entry/unlock */
    pointer-events: auto;
}

/* Role Selector Styling */
.role-logo {
    max-width: 150px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(197, 179, 88, 0.5));
}

.name-input {
    width: 300px;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid var(--le-gold);
    background: rgba(0, 0, 0, 0.5);
    color: var(--le-white);
    border-radius: 4px;
    text-align: center;
    font-size: 1rem;
}