:root {
    --bg: #f6f8fb;
    --surface: #ffffff;
    --muted: #6b7280;
    --accent: #2563eb;
    --accent-2: #1e40af;
    --radius: 10px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", monospace;
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    background: var(--bg);
    color: #0f172a;
    font-family: Inter, ui-sans-serif, system-ui, Segoe UI, Roboto, Arial
}

.container {
    max-width: 1290px;
    margin: 22px auto;
    padding: 0 18px
}

.site-header {
    background: linear-gradient(90deg, #ffffff, #f8fbff);
    border-bottom: 1px solid #eef4ff;
}

.site-header .container {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

.tagline {
    font-size: 16px;
    color: var(--muted);
    margin-top: -6px;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px
}

.logo {
    height: 100px;
    width: 100px;
    object-fit: contain
}

.brand-text h1 {
    margin: 0;
    font-size: 18px
}

.brand-text .tag {
    font-size: 12px;
    color: var(--muted)
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 12px
}

.main-nav .nav-link {
    text-decoration: none;
    color: var(--muted);
    padding: 8px;
    border-radius: 6px
}

.main-nav .nav-link:hover {
    background: #f0f6ff
}

.btn {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer
}

.btn-primary {
    background: #0d6efd;
    color: white;
}

.btn-ghost {
    background: transparent;
    border: 1px solid #e6f0ff;
    color: var(--accent)
}

.lead {
    color: var(--muted);
    margin-top: 6px
}

.panel {
    background: var(--surface);
    padding: 18px;
    border-radius: var(--radius);
    box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
    margin-bottom: 18px
}

.section-title {
    margin-top: 0
}

.btn {
    text-decoration: none !important;
}

.editor-wrap {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.editor-column,
.output-column {
    background: #f9fbff;
    padding: 16px;
    border-radius: 10px;
    border: 1px solid #e5e8ef;
}

.editor-column,
.output-column {
    width: 100%;
}

.editor-column,
.output-column {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.editor-label {
    font-weight: 600
}

.editor-area {
    width: 100%;
    height: 360px;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #e6eefc;
    font-family: var(--mono);
    font-size: 13px;
    resize: none;
    overflow: auto
}

.output-area {
    background: #0f172a;
    color: #e6eefc;
    padding: 12px;
    border-radius: 8px;
    height: 360px;
    /* fixed height */
    overflow: auto;
    /* vertical + horizontal scroll */
    font-family: var(--mono);
    font-size: 13px;
    white-space: pre;
    /* keep long lines on one line */
}

.controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px
}

.left-controls {
    display: flex;
    align-items: center;
    gap: 12px
}

.right-controls {
    display: flex;
    gap: 8px
}

.output-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px
}

.message {
    min-height: 24px;
    color: #065f46
}

/* small helpers */
.checkbox {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted)
}

.links li {
    margin: 6px 0
}

.site-footer {
    text-align: center;
    padding: 20px 0;
    background: #f0f4ff;   /* optional: matches your theme */
    margin-top: 40px;
    font-size: 14px;
    color: var(--muted);
}

.fixes-list {
    background: #f0f9ff;
    border: 1px solid #dbeafe;
    padding: 10px 14px;
    border-radius: 8px;
    margin-top: 10px;
    color: #1e40af;
    font-size: 13px;
    line-height: 1.4;
}



/* responsive */
@media(max-width:980px) {
    .editor-wrap {
        flex-direction: column
    }

    .output-column {
        width: 100%
    }
}