:root {
    --li-bg-card: #fff;
    --li-bg-card-hover: #f9fafb;
    --li-border-card: #e5e7eb;
    --li-text-primary: #1f2937;
    --li-text-secondary: #6b7280;
    --li-text-input: #1f2937;
    --li-bg-input: #fff;
    --li-border-input: #d1d5db;
    --li-focus-ring: rgba(59, 130, 246, 0.1);
    --li-focus-border: #3b82f6;
    --li-unit-color: #3b82f6;
    --li-bg-result: #f3f4f6;
    --li-border-result: #d1d5db;
    --li-label-result: #6b7280;
    --li-value-result: #1f2937;
    --li-bg-total-gradient-1: #dbeafe;
    --li-bg-total-gradient-2: #bfdbfe;
    --li-border-total: #3b82f6;
    --li-label-total: #1e40af;
    --li-value-total: #1e3a8a;
    --li-bg-banner: #fef3c7;
    --li-border-banner: #f59e0b;
    --li-text-banner: #92400e;
    --li-bg-button: #3b82f6;
    --li-bg-button-hover: #2563eb;
    --li-text-button: #fff;
}

.theme-dark {
    --li-bg-card: #1f2937;
    --li-border-card: #374151;
    --li-text-primary: #f3f4f6;
    --li-text-secondary: #d1d5db;
    --li-text-input: #f3f4f6;
    --li-bg-input: #111827;
    --li-border-input: #4b5563;
    --li-focus-ring: rgba(59, 130, 246, 0.1);
    --li-focus-border: #3b82f6;
    --li-unit-color: #60a5fa;
    --li-bg-result: #111827;
    --li-border-result: #374151;
    --li-label-result: #d1d5db;
    --li-value-result: #f3f4f6;
    --li-bg-total-gradient-1: #1e3a8a;
    --li-bg-total-gradient-2: #1e40af;
    --li-border-total: #3b82f6;
    --li-label-total: #93c5fd;
    --li-value-total: #dbeafe;
    --li-bg-banner: #78350f;
    --li-border-banner: #f59e0b;
    --li-text-banner: #fef3c7;
    --li-bg-button: #3b82f6;
    --li-bg-button-hover: #1e40af;
    --li-text-button: #fff;
}

[data-theme='dark'] {
    --li-bg-card: #1f2937;
    --li-border-card: #374151;
    --li-text-primary: #f3f4f6;
    --li-text-secondary: #d1d5db;
    --li-text-input: #f3f4f6;
    --li-bg-input: #111827;
    --li-border-input: #4b5563;
    --li-focus-ring: rgba(59, 130, 246, 0.1);
    --li-focus-border: #3b82f6;
    --li-unit-color: #60a5fa;
    --li-bg-result: #111827;
    --li-border-result: #374151;
    --li-label-result: #d1d5db;
    --li-value-result: #f3f4f6;
    --li-bg-total-gradient-1: #1e3a8a;
    --li-bg-total-gradient-2: #1e40af;
    --li-border-total: #3b82f6;
    --li-label-total: #93c5fd;
    --li-value-total: #dbeafe;
    --li-bg-banner: #78350f;
    --li-border-banner: #f59e0b;
    --li-text-banner: #fef3c7;
    --li-bg-button: #3b82f6;
    --li-bg-button-hover: #1e40af;
    --li-text-button: #fff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --li-bg-card: #1f2937;
        --li-border-card: #374151;
        --li-text-primary: #f3f4f6;
        --li-text-secondary: #d1d5db;
        --li-text-input: #f3f4f6;
        --li-bg-input: #111827;
        --li-border-input: #4b5563;
        --li-focus-ring: rgba(59, 130, 246, 0.1);
        --li-focus-border: #3b82f6;
        --li-unit-color: #60a5fa;
        --li-bg-result: #111827;
        --li-border-result: #374151;
        --li-label-result: #d1d5db;
        --li-value-result: #f3f4f6;
        --li-bg-total-gradient-1: #1e3a8a;
        --li-bg-total-gradient-2: #1e40af;
        --li-border-total: #3b82f6;
        --li-label-total: #93c5fd;
        --li-value-total: #dbeafe;
        --li-bg-banner: #78350f;
        --li-border-banner: #f59e0b;
        --li-text-banner: #fef3c7;
        --li-bg-button: #3b82f6;
        --li-bg-button-hover: #1e40af;
        --li-text-button: #fff;
    }
}

.li-container {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 2rem 1rem;
}

.li-card {
    background: var(--li-bg-card);
    border: 1px solid var(--li-border-card);
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    max-width: 600px;
    color: var(--li-text-primary);
}

.li-input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.li-input-group {
    display: flex;
    flex-direction: column;
}

.li-input-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--li-text-primary);
}

.li-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.li-input-wrapper input,
.li-input-wrapper select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--li-border-input);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--li-bg-input);
    color: var(--li-text-input);
    color-scheme: light;
}

.theme-dark .li-input-wrapper input,
.theme-dark .li-input-wrapper select,
[data-theme='dark'] .li-input-wrapper input,
[data-theme='dark'] .li-input-wrapper select {
    color-scheme: dark;
}

.li-input-wrapper select {
    padding-right: 2.5rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%233b82f6' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px 8px;
}

.theme-dark .li-input-wrapper select,
[data-theme='dark'] .li-input-wrapper select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2360a5fa' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
}

.li-input-wrapper input:focus,
.li-input-wrapper select:focus {
    outline: none;
    border-color: var(--li-focus-border);
    box-shadow: 0 0 0 3px var(--li-focus-ring);
}

.li-input-unit {
    position: absolute;
    right: 1rem;
    font-weight: 600;
    color: var(--li-unit-color);
    pointer-events: none;
}

.li-results-display {
    margin-bottom: 2rem;
}

.li-total-interest-box {
    background: linear-gradient(135deg, var(--li-bg-total-gradient-1), var(--li-bg-total-gradient-2));
    border: 2px solid var(--li-border-total);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.li-total-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--li-label-total);
    margin-bottom: 0.5rem;
}

.li-total-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--li-value-total);
}

.li-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.li-sub-result-card {
    background: var(--li-bg-result);
    border: 1px solid var(--li-border-result);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.li-sub-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--li-label-result);
    margin-bottom: 0.5rem;
}

.li-sub-value {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--li-value-result);
}

.li-info-banner {
    background: var(--li-bg-banner);
    border-left: 4px solid var(--li-border-banner);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.li-info-banner p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--li-text-banner);
}

.action-row {
    display: flex;
    gap: 1rem;
}

.li-btn-primary {
    flex: 1;
    padding: 0.75rem 1.5rem;
    background: var(--li-bg-button);
    color: var(--li-text-button);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.li-btn-primary:hover {
    background: var(--li-bg-button-hover);
    transform: translateY(-2px);
}

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

.fade-in {
    animation: fade-in-up 0.4s ease-out;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-color-scheme: dark) {
    .li-card {
        background: #1f2937;
        border-color: #374151;
        color: #f3f4f6;
    }

    .li-input-group label {
        color: #d1d5db;
    }

    .li-input-wrapper input,
    .li-input-wrapper select {
        background: #111827;
        border-color: #4b5563;
        color: #f3f4f6;
    }

    .li-input-unit {
        color: #60a5fa;
    }

    .li-sub-result-card {
        background: #111827;
        border-color: #374151;
    }

    .li-sub-label {
        color: #d1d5db;
    }

    .li-sub-value {
        color: #f3f4f6;
    }

    .li-info-banner {
        background: #78350f;
        color: #fef3c7;
    }

    .li-info-banner p {
        color: #fef3c7;
    }

    .li-total-interest-box {
        background: linear-gradient(135deg, #1e3a8a, #1e40af);
        border-color: #3b82f6;
    }

    .li-total-label {
        color: #93c5fd;
    }

    .li-total-value {
        color: #dbeafe;
    }

    .li-btn-primary {
        background: #3b82f6;
        color: #fff;
    }

    .li-btn-primary:hover {
        background: #1e40af;
    }
}

@media (max-width: 640px) {
    .li-input-grid {
        grid-template-columns: 1fr;
    }

    .li-breakdown-grid {
        grid-template-columns: 1fr;
    }

    .li-total-value {
        font-size: 1.5rem;
    }
}