body {
    font-family: Arial, sans-serif;
    background: #ffffff;
    margin: 0;
    padding: 0;
}

/* HEADER */
.top-header {
    display: flex;
    align-items: center;
    padding: 25px;
    gap: 20px;
    border-bottom: 1px solid #eee;
}

.logo {
    width: 90px;
    height: auto;
}

.brand-title {
    font-size: 32px;
    margin: 0;
    color: #4E2A1E;
}

.slogan {
    margin: 5px 0 0 0;
    color: #6b6b6b;
}

/* GRID */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    padding: 30px;
}

.tool-card {
    background: #FFF7F2;
    border: 1px solid #E6D1C8;
    border-radius: 14px;
    padding: 20px;
    text-decoration: none;
    color: #4E2A1E;
    transition: 0.2s;
}

.tool-card:hover {
    background: #F5E9E3;
    transform: translateY(-4px);
}

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    color: #777;
    margin-top: 40px;
}
.tool-container {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    gap: 32px;
    padding: 30px;
}

.tool-main {
    background: #FFF7F2;
    border: 1px solid #E6D1C8;
    border-radius: 16px;
    padding: 24px;
}

.tool-aside {
    border-radius: 16px;
    border: 1px dashed #E6D1C8;
    padding: 20px;
    background: #fffdf9;
    font-size: 14px;
}

.tool-aside h2 {
    margin-top: 0;
    color: #4E2A1E;
}

.info-list {
    list-style: disc;
    padding-left: 18px;
    margin-top: 10px;
}

.tool-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.file-label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-weight: 600;
    color: #4E2A1E;
}

.file-label input[type="file"] {
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #E6D1C8;
    background: #fff;
}

.file-hint {
    font-size: 12px;
    color: #777;
}

.section-title {
    margin: 0;
    font-size: 16px;
    color: #4E2A1E;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.quality-card {
    display: flex;
    gap: 10px;
    border-radius: 12px;
    border: 1px solid #E6D1C8;
    padding: 12px;
    cursor: pointer;
    background: #fff;
    transition: 0.2s;
}

.quality-card:hover {
    background: #F5E9E3;
    transform: translateY(-2px);
}

.quality-card input[type="radio"] {
    margin-top: 4px;
}

.quality-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.quality-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.quality-name {
    font-weight: 600;
    color: #4E2A1E;
}

.quality-desc {
    margin: 0;
    font-size: 13px;
    color: #555;
}

.badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    color: #fff;
}

.badge-danger { background: #c0392b; }
.badge-warning { background: #e67e22; }
.badge-info    { background: #2980b9; }
.badge-success { background: #27ae60; }

.process-btn {
    margin-top: 10px;
    padding: 12px 18px;
    border-radius: 999px;
    border: none;
    background: #4E2A1E;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
}

.process-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.process-btn:hover:not(:disabled) {
    background: #6a3a29;
    transform: translateY(-1px);
}

.result-box {
    margin-top: 20px;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid #27ae60;
    background: #ecf9f1;
    font-size: 14px;
}

.result-box h3 {
    margin-top: 0;
    margin-bottom: 6px;
    color: #1e8449;
}

.download-link {
    display: inline-block;
    margin-top: 6px;
    text-decoration: none;
    font-weight: 600;
    color: #1e6bb8;
}

.error-box {
    margin-top: 16px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #c0392b;
    background: #fdecea;
    color: #c0392b;
    font-size: 13px;
}

@media (max-width: 900px) {
    .tool-container {
        grid-template-columns: 1fr;
    }
}