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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    padding: 30px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #333;
    margin-bottom: 5px;
    font-size: 20px;
    text-align: center;
}

.subtitle {
    color: #666;
    margin-bottom: 20px;
    font-size: 12px;
    text-align: center;
}

.cost-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 40px;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 30px;
    transition: all 0.5s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.cost-label {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cost-amount {
    font-size: 144px;
    font-weight: bold;
    font-variant-numeric: tabular-nums;
    transition: all 0.3s ease;
    line-height: 1.2;
    white-space: nowrap;
    max-width: 100%;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.cost-display.intense {
    animation: pulse 2s infinite;
}

.cost-display.very-intense {
    animation: pulse 1s infinite;
}

.cost-display.extremely-intense {
    animation: pulse 0.5s infinite;
}

.cost-time {
    font-size: 32px;
    opacity: 0.9;
    margin-top: 20px;
    font-weight: 300;
}

.controls {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 0;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 6px;
    color: #333;
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input, select {
    width: 100%;
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

.meeting-type-info {
    font-size: 11px;
    color: #666;
    margin-top: 4px;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 18px;
    }

    .cost-display {
        padding: 50px 30px;
        min-height: 300px;
    }

    .cost-time {
        font-size: 24px;
    }

    .controls {
        grid-template-columns: 1fr;
    }
}