/* Gaming — minimal, clean, mobile-friendly */

:root {
    --bg: #f8f9fa;
    --card-bg: #ffffff;
    --text: #212529;
    --text-muted: #6c757d;
    --primary: #0d6efd;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --border: #dee2e6;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
}

h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }
h3 { font-size: 1rem; color: var(--text-muted); margin-bottom: 0.25rem; }

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s;
    text-align: center;
}
.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text);
}

/* Game-specific buttons */
.btn-buy {
    background: var(--success);
    color: white;
    font-size: 1.3rem;
    padding: 1rem 2rem;
    min-width: 140px;
}
.btn-skip {
    background: var(--danger);
    color: white;
    font-size: 1.3rem;
    padding: 1rem 2rem;
    min-width: 140px;
}

.decision-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1.5rem 0;
}

/* Forms */
input[type="text"], input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}
input:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

/* Scenario display */
.scenario {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin: 1rem 0;
}
.scenario-item {
    background: var(--bg);
    padding: 0.75rem;
    border-radius: var(--radius);
    text-align: center;
}
.scenario-item .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.scenario-item .value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Balance display */
.balance-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}
.balance-amount {
    font-size: 1.3rem;
    font-weight: 700;
}
.balance-amount.negative { color: var(--danger); }

.round-indicator {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Result display */
.result-card {
    text-align: center;
    padding: 2rem;
}
.result-card .outcome-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}
.result-card .outcome-text {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}
.result-card .balance-change {
    font-size: 1.3rem;
    font-weight: 700;
}
.balance-change.loss { color: var(--danger); }
.balance-change.neutral { color: var(--success); }

/* Waiting state */
.waiting {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}
.waiting .spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 0.75rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Standings table */
.standings-table {
    width: 100%;
    border-collapse: collapse;
}
.standings-table th, .standings-table td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.standings-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
}
.standings-table tr:first-child td { font-weight: 700; }

/* Player list (instructor) */
.player-chip {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2rem;
    font-size: 0.85rem;
    margin: 0.25rem;
}
.player-chip.disconnected { opacity: 0.4; text-decoration: line-through; }

/* Instructor submission counter */
.submission-counter {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1rem 0;
}

/* Game code display */
.game-code {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: 0.3em;
    text-align: center;
    font-family: "SF Mono", "Consolas", monospace;
    color: var(--primary);
    margin: 1rem 0;
}

/* Section visibility */
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
    .scenario { grid-template-columns: 1fr; }
    .btn-buy, .btn-skip { min-width: 100px; font-size: 1.1rem; padding: 0.75rem 1.5rem; }
}

/* Debrief charts */
.chart-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 1rem auto;
}

/* How-to-play card (join screen, before round 1) */
.sim-instructions h2 { text-align: center; color: var(--text); margin-bottom: 0.75rem; }
.sim-instructions .ins-role { font-weight: 600; text-align: center; margin-bottom: 0.9rem; }
.sim-instructions ol { margin: 0 0 0.9rem 1.3rem; padding: 0; }
.sim-instructions ol li { margin: 0.4rem 0; }
.sim-instructions .ins-note { font-size: 0.9rem; color: var(--text-muted); margin: 0.45rem 0 0; }
.sim-instructions .ins-note strong { color: var(--text); }

/* --- 1B: Setting Premiums --- */

.game-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.policy-banner {
    background: #fff3cd;
    border: 1px solid #ffe69c;
    color: #664d03;
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 0.75rem;
}

.market-facts {
    display: flex;
    justify-content: space-around;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.market-facts strong { color: var(--text); }

.type-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.type-table th, .type-table td {
    padding: 0.4rem 0.5rem;
    text-align: right;
    border-bottom: 1px solid var(--border);
}
.type-table th:first-child, .type-table td:first-child { text-align: left; }
.type-table th {
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

.premium-entry {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.premium-entry .premium-prefix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
}
.premium-entry input {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0;
}

.profit-headline {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 0.5rem 0 1rem;
}
.profit-headline.gain { color: var(--success); }
.profit-headline.loss { color: var(--danger); }

.pool-mix {
    text-align: center;
    font-size: 0.95rem;
    margin-top: 0.75rem;
}

.policy-row {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin: 0.6rem 0 0.25rem;
}
.policy-row input[type="checkbox"] { width: auto; margin-right: 0.4rem; }
#policy-panel-1b select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}