* {
    box-sizing: border-box;
}


body {
    margin: 0;

    font-family:
        Arial,
        sans-serif;

    background: #f4f6f8;

    color: #1f2937;
}


.container {
    width: 90%;
    max-width: 1100px;

    margin: 0 auto;
}


/* --------------------------------
   Header
-------------------------------- */

.header {
    background: #111827;

    color: white;

    padding: 30px 0;

    text-align: center;
}


.header h1 {
    margin: 0;

    font-size: 32px;
}


.header p {
    margin-top: 10px;

    color: #d1d5db;
}


/* --------------------------------
   Search Section
-------------------------------- */

.search-card {
    background: white;

    margin-top: 30px;

    padding: 25px;

    border-radius: 12px;

    box-shadow:
        0 4px 15px
        rgba(0, 0, 0, 0.08);
}


.search-card h2 {
    margin-top: 0;
}


.form-grid {
    display: grid;

    grid-template-columns:
        1fr 1fr auto;

    gap: 15px;

    align-items: end;
}


.form-group label {
    display: block;

    margin-bottom: 6px;

    font-weight: bold;
}


.form-group input {
    width: 100%;

    padding: 11px;

    border: 1px solid #d1d5db;

    border-radius: 6px;

    font-size: 15px;
}


button {
    padding: 11px 20px;

    border: none;

    border-radius: 6px;

    background: #2563eb;

    color: white;

    font-size: 15px;

    cursor: pointer;
}


button:hover {
    background: #1d4ed8;
}


/* --------------------------------
   Error
-------------------------------- */

.error {
    margin-top: 20px;

    padding: 12px;

    background: #fee2e2;

    color: #991b1b;

    border-radius: 6px;
}


/* --------------------------------
   Comparison
-------------------------------- */

.comparison-section {
    margin-top: 35px;

    background: white;

    padding: 25px;

    border-radius: 12px;

    box-shadow:
        0 4px 15px
        rgba(0, 0, 0, 0.08);
}


.comparison-section h2 {
    margin-top: 0;

    text-align: center;
}


.comparison-container {
    position: relative;

    width: 800px;

    max-width: 100%;

    aspect-ratio: 1 / 1;

    margin: 20px auto;

    overflow: hidden;

    border-radius: 8px;
}


.comparison-image {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;
}


.before-container {
    position: absolute;

    top: 0;
    left: 0;

    width: 50%;
    height: 100%;

    overflow: hidden;
}


.before-container .comparison-image {
    position: absolute;

    top: 0;
    left: 0;

    max-width: none;

    object-fit: cover;
}


.slider-line {
    position: absolute;

    top: 0;
    bottom: 0;

    left: 50%;

    width: 3px;

    background: white;

    pointer-events: none;
}


.comparison-slider {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    margin: 0;

    opacity: 0;

    cursor: ew-resize;
}


.year-label {
    position: absolute;

    top: 15px;

    padding: 7px 12px;

    background:
        rgba(0, 0, 0, 0.65);

    color: white;

    font-weight: bold;

    border-radius: 5px;
}


.before-label {
    left: 15px;
}


.after-label {
    right: 15px;
}


/* --------------------------------
   Metadata
-------------------------------- */

.metadata-grid {
    display: grid;

    grid-template-columns:
        1fr 1fr;

    gap: 20px;

    margin-top: 25px;
}


.metadata-card {
    padding: 20px;

    border: 1px solid #e5e7eb;

    border-radius: 10px;

    background: #fafafa;
}


.metadata-card h3 {
    margin-top: 0;

    font-size: 20px;
}


.metadata-card p {
    margin: 8px 0;

    font-size: 14px;
}


.metadata-label {
    font-weight: bold;
}


/* --------------------------------
   Footer
-------------------------------- */

.footer {
    text-align: center;

    padding: 30px 0;

    color: #6b7280;

    font-size: 14px;
}


/* --------------------------------
   Mobile
-------------------------------- */

@media (max-width: 700px) {

    .container {
        width: 94%;
    }


    .header h1 {
        font-size: 25px;
    }


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


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


    .comparison-container {
        width: 100%;
    }

}