.calculator-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
}

header {
    padding: 30px 20px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header h1 {
    font-size: 44px;
    margin-bottom: 10px;
    letter-spacing: -1.5px;
    font-weight: 700;
}

header h2 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #888;
    max-width: 600px;
    font-weight: 500;
}

.input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    justify-content: center;
}

.input-group label {
    font-size: 16px;
    font-weight: 600;
}

.input-group input {
    border: 2px solid #ddd;
    border-radius: var(--border-radius-small);
    padding: 10px 15px;
    font-size: 16px;
    width: 180px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    text-align: center;
}

.input-group input:focus {
    border-color: var(--color-button-bg);
    outline: none;
}

.fees-grid {
    margin-top: 30px;
}

.special-grid {
    display: grid;
    gap: 15px;
    margin-bottom: 15px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.regular-grid {
    display: grid;
    gap: 15px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.fee-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-small);
    padding: 15px;
    display: flex;
    flex-direction: column;
    border: 2px solid #ddd;
    height: 100%;
    box-sizing: border-box;
    position: relative; 
}

.fee-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
    width: 100%;
    gap: 10px;
}

.platform-info {
    flex: 1;
    min-width: 0;
}

.platform-name {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.2;
    
    white-space: normal;
    word-wrap: break-word;
    
}

.platform-name.long-name {
    hyphens: auto;
}

.fee-details {
    font-size: 12px;
    color: var(--color-secondary);
    font-weight: 500;
    line-height: 1.3;
}

.fee-amount-container {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    align-self: flex-start;
}

.fee-amount {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    text-align: right;
    min-width: 75px; 
    padding: 3px 6px;
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.05);
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    padding: 0;
    position: relative;
    flex-shrink: 0;
}

.copy-btn:hover {
    background-color: rgba(0, 0, 0, 0.15);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
    fill: var(--color-primary);
    opacity: 1;
    transition: opacity 0.2s ease;
}

.copy-btn.copied-animation {
    background-color: rgba(0, 0, 0, 0.15);
}

.copy-btn.copied-animation svg {
    opacity: 0;
}

.copy-btn.copied-animation::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    font-weight: bold;
    color: #333;
    opacity: 1;
}

.fee-levels {
    margin-top: 10px;
    border-top: 1px solid #eee;
    padding-top: 10px;
}

.fee-level {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.level-name {
    font-size: 13px;
    font-weight: 500;
    max-width: 70%;
    line-height: 1.2;
    
    white-space: normal;
    word-wrap: break-word;
}

.level-amount-container {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.level-amount {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    padding: 2px 5px;
    border-radius: 4px;
    background-color: rgba(0, 0, 0, 0.05);
    text-align: right;
    min-width: 60px; 
}

.level-copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background-color: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    padding: 0;
    position: relative;
    flex-shrink: 0;
}

.level-copy-btn:hover {
    background-color: rgba(0, 0, 0, 0.15);
}

.level-copy-btn svg {
    width: 12px;
    height: 12px;
    fill: var(--color-primary);
    opacity: 1;
    transition: opacity 0.2s ease;
}

.level-copy-btn.copied-animation {
    background-color: rgba(0, 0, 0, 0.15);
}

.level-copy-btn.copied-animation svg {
    opacity: 0;
}

.level-copy-btn.copied-animation::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: bold;
    color: #333;
    opacity: 1;
}

@media (max-width: 1100px) {
    .special-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .regular-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    .calculator-container {
        padding: 20px 15px;
    }
    
    .platform-name {
        font-size: 15px;
    }
}

@media (max-width: 800px) {
    .fee-header {
        flex-wrap: wrap;
    }
    
    .platform-info {
        width: 100%;
        margin-bottom: 5px;
    }
    
    .fee-amount-container {
        margin-left: auto;
    }
    
    header h1 {
        font-size: 32px;
        margin-bottom: 8px;
    }
    
    .platform-name {
        font-size: 14px;
    }
}

@media (max-width: 600px) {
    .special-grid, .regular-grid {
        grid-template-columns: 1fr;
    }
    
    .fee-amount {
        font-size: 20px;
        min-width: 65px;
    }
    
    .level-amount {
        font-size: 14px;
    }
    
    .platform-name {
        font-size: 14px;
    }
    
    .fee-card {
        padding: 12px;
    }
    
    .level-name {
        max-width: 65%;
    }
}

@media (max-width: 479px) {
    .input-group {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .input-group input {
        width: 100%;
    }
    
    header h1 {
        font-size: 30px;
    }
    
    header h2 {
        font-size: 15px;
    }
    
    .calculator-container {
        padding: 15px 10px;
    }
    
    .platform-name {
        font-size: 14px;
    }
}