.calculateur-container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    background: rgba(26, 32, 44, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow:
        0 32px 64px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    position: relative;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.calculateur-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
    z-index: 2;
}

.calculateur-header {
    padding: 32px 32px 24px;
    text-align: center;
    background: transparent;
    border: none;
}

.calculateur-title {
    font-size: 24px;
    font-weight: 700;
    color: #f7fafc;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    margin-top: 0;
}

.calculateur-subtitle {
    font-size: 14px;
    color: #a0aec0;
    font-weight: 500;
    margin-bottom: 0;
}

.calculateur-body {
    padding: 0 32px 32px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.input-section {
    display: flex;
    flex-direction: column;
}

.input-group {
    margin-bottom: 24px;
    position: relative;
}

.input-label {
    display: block;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 8px;
    font-size: 14px;
    letter-spacing: -0.2px;
}

.input-field {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #4a5568;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: #2d3748;
    color: #f7fafc;
    font-family: inherit;
}

.input-field:focus {
    outline: none;
    border-color: #667eea;
    background: #2d3748;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
    transform: translateY(-1px);
}

.input-field::placeholder {
    color: #718096;
    font-weight: 400;
}

.calculate-btn {
    width: 100%;
    padding: 18px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.5px;
    margin: 24px 0;
    position: relative;
    overflow: hidden;
    font-family: inherit;
}

.calculate-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
}

.calculate-btn:hover::before {
    left: 100%;
}

.calculate-btn:active {
    transform: translateY(0);
}

.formula-section {
    background: #2d3748;
    padding: 20px;
    border-radius: 16px;
    margin: 24px 0;
    border: 1px solid #4a5568;
    position: relative;
}

.formula-section::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.formula-title {
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 12px;
    font-size: 14px;
    padding-left: 16px;
}

.formula-text {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    background: #1a202c;
    padding: 16px;
    border-radius: 8px;
    color: #fc8181;
    font-weight: 600;
    font-size: 13px;
    border: 1px solid #4a5568;
    margin-left: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.formula-description {
    color: #a0aec0;
    font-size: 12px;
    margin-top: 8px;
    font-style: italic;
    padding-left: 16px;
}

.result-section {
    background: linear-gradient(135deg, #8b7cf8 0%, #a855f7 100%);
    color: white;
    padding: 24px;
    border-radius: 16px;
    display: none;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: fit-content;
}

.result-section.show {
    display: block;
}

.result-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ffffff;
}

.result-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.result-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.result-line:last-child {
    border-bottom: none;
    margin-top: 8px;
}

.result-label {
    font-weight: 500;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 6px;
}

.result-value-item {
    font-weight: 700;
    color: #ffffff;
    font-size: 15px;
}

.result-percentage {
    color: #ffd700;
    font-size: 18px;
    font-weight: 900;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
    background: none;
}

.interpretation-section {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 16px;
    border-radius: 12px;
    margin-top: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.interpretation-title {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 6px;
}

.interpretation-text {
    font-size: 13px;
    line-height: 1.5;
    color: #ffffff;
    font-weight: 500;
}

.calculation-detail {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 16px;
    border-radius: 12px;
    margin-top: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.calculation-formula {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 12px;
    margin-bottom: 12px;
    background: rgba(255, 255, 255, 0.15);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-weight: 500;
}

.calculation-steps {
    font-size: 13px;
    line-height: 1.6;
    color: #ffffff;
    font-weight: 500;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.error-message {
    background: linear-gradient(135deg, #e53e3e, #fc8181);
    color: white;
    padding: 16px 20px;
    border-radius: 12px;
    margin: 16px 0;
    display: none;
    text-align: center;
    font-weight: 500;
    font-size: 14px;
    box-shadow: 0 4px 12px rgba(229, 62, 62, 0.3);
    animation: shake 0.5s ease-in-out;
}

.error-message.show {
    display: block;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .calculateur-container {
        max-width: 100%;
        border-radius: 20px;
        margin: 0 10px;
    }

    .calculateur-header {
        padding: 24px 24px 20px;
    }

    .calculateur-title {
        font-size: 22px;
    }

    .calculateur-body {
        padding: 0 24px 24px;
    }

    .main-content {
        grid-template-columns: 1fr;
        gap: 24px;
        align-items: stretch;
    }

    .input-field {
        padding: 14px 16px;
        font-size: 16px;
    }

    .calculate-btn {
        padding: 16px 20px;
        font-size: 15px;
    }

    .result-line {
        font-size: 13px;
    }

    .result-percentage {
        font-size: 16px;
    }
}

/* Intégration WordPress - Reset des styles conflictuels */
.calculateur-container * {
    box-sizing: border-box;
}

.calculateur-container h2 {
    margin: 0;
    padding: 0;
}

.calculateur-container p {
    margin: 0;
    padding: 0;
}

.calculateur-container input[type="number"] {
    -webkit-appearance: none;
    -moz-appearance: textfield;
}

.calculateur-container input[type="number"]::-webkit-outer-spin-button,
.calculateur-container input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Forcer le mode sombre pour WordPress */
.calculateur-container {
    background: rgba(26, 32, 44, 0.95) !important;
    box-shadow:
        0 32px 64px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1) !important;
}

.calculateur-title {
    color: #f7fafc !important;
}

.calculateur-subtitle {
    color: #a0aec0 !important;
}

.input-label {
    color: #e2e8f0 !important;
}

.input-field {
    background: #2d3748 !important;
    border-color: #4a5568 !important;
    color: #f7fafc !important;
}

.input-field:focus {
    background: #2d3748 !important;
    border-color: #667eea !important;
}

.formula-section {
    background: #2d3748 !important;
    border-color: #4a5568 !important;
}

.formula-title {
    color: #e2e8f0 !important;
}

.formula-text {
    background: #1a202c !important;
    border-color: #4a5568 !important;
    color: #fc8181 !important;
}

.formula-description {
    color: #a0aec0 !important;
}