body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.converter-container {
    max-width: 600px;
    margin: 50px auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 30px;
}

.input-section {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.number-input {
    background-color: #e9ecef;
    border: none;
    border-radius: 8px;
    padding: 15px 20px;
    font-size: 18px;
    font-weight: 500;
    text-align: center;
    min-width: 80px;
}

.convert-btn {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    border: none;
    border-radius: 50px;
    padding: 12px 40px;
    color: white;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.3);
}

.convert-btn:hover {
    background: linear-gradient(135deg, #00b894, #00a085);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4);
}

.owner-text {
    text-align: center;
    font-size: 14px;
    color: #636e72;
    margin-top: 30px;
    font-weight: 500;
}

.division-step {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    margin-bottom: 10px;
    background-color: #f8f9fa;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 500;
}

.step-number {
    background-color: #e9ecef;
    border-radius: 8px;
    padding: 10px 15px;
    font-weight: 600;
    min-width: 60px;
    text-align: center;
}

.remainder {
    background-color: #e9ecef;
    border-radius: 8px;
    padding: 10px 15px;
    font-weight: 600;
    min-width: 50px;
    text-align: center;
}

.result-section {
    margin-top: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #74b9ff, #0984e3);
    border-radius: 15px;
    color: white;
}

.result-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
}

.copy-btn {
    background-color: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    padding: 8px 20px;
    color: white;
    font-weight: 500;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background-color: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    color: white;
}

.copy-btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(255,255,255,0.25);
}

.steps-container {
    display: none;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.title {
    text-align: center;
    color: #2d3436;
    font-weight: 700;
    margin-bottom: 30px;
}

.initial-state {
    text-align: center;
    font-size: 20px;
}

.equals {
    font-size: 24px;
    font-weight: 600;
    color: #2d3436;
}

.label {
    font-size: 18px;
    color: #636e72;
    font-weight: 500;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
}