:root {
    --rafb-rail-width: 180px;
    --rafb-max-width: 1680px;
}

html {
    font-size: 15px;
    position: relative;
    min-height: 100%;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

footer {
    margin-top: auto !important;
}

.rafb-container {
    width: 100%;
    max-width: var(--rafb-max-width);
    margin-inline: auto;
    padding-inline: 1rem;
}

/* ---- Three-column shell: left ad | content | right ad ---- */

.rafb-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
    padding-top: 1.25rem;
    flex: 1 0 auto;
}

.rafb-rail {
    display: none;
}

@media (min-width: 1200px) {
    .rafb-shell:not(.rafb-shell-noads) {
        grid-template-columns: var(--rafb-rail-width) minmax(0, 1fr) var(--rafb-rail-width);
    }

    .rafb-rail {
        display: block;
    }

    .rafb-rail > .rafb-ad {
        position: sticky;
        top: 1rem;
    }
}

.rafb-main {
    min-width: 0;
}

/* ---- Ad slots ---- */

.rafb-ad {
    margin-inline: auto;
    overflow: hidden;
}

.rafb-ad-left, .rafb-ad-right {
    width: 160px;
    min-height: 600px;
}

.rafb-ad-bottom {
    width: 100%;
    max-width: 728px;
    min-height: 90px;
}

.rafb-ad-bottommobile {
    width: 320px;
    min-height: 50px;
}

.rafb-bottom-ad {
    margin-top: 2rem;
}

.rafb-ad-frame {
    display: block;
    border: 0;
    margin: 0 auto;
    max-width: 100%;
}

.rafb-ad-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border: 2px dashed var(--bs-border-color);
    border-radius: .5rem;
    color: var(--bs-secondary-color);
    font-size: .85rem;
    background: repeating-linear-gradient(45deg, transparent, transparent 10px, var(--bs-tertiary-bg) 10px, var(--bs-tertiary-bg) 20px);
}

/* ---- Navigation ---- */

.rafb-tools-menu {
    min-width: min(92vw, 640px);
    max-height: 75vh;
    overflow-y: auto;
}

@media (min-width: 768px) {
    .rafb-tools-menu {
        columns: 2;
    }
}

.rafb-tools-menu-group {
    break-inside: avoid;
    margin-bottom: .25rem;
}

.rafb-tools-menu .dropdown-item {
    border-radius: .25rem;
}

/* ---- Home page ---- */

.rafb-tool-card {
    transition: transform .08s ease, box-shadow .08s ease, border-color .08s ease;
}

.rafb-tool-card:hover, .rafb-tool-card:focus-within {
    transform: translateY(-2px);
    border-color: var(--bs-primary);
    box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .08);
}

.rafb-tool-card .rafb-tool-icon {
    font-size: 1.6rem;
    line-height: 1;
}

/* ---- Tool UI building blocks ---- */

.rafb-mono, textarea.rafb-mono, .rafb-mono.form-control {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: .875rem;
}

textarea.rafb-mono {
    tab-size: 4;
}

.rafb-output {
    white-space: pre-wrap;
    word-break: break-all;
    background: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    padding: .75rem;
    min-height: 3rem;
    margin: 0;
}

.rafb-log {
    height: 360px;
    overflow-y: auto;
    background: #0d1117;
    color: #c9d1d9;
    border-radius: var(--bs-border-radius);
    padding: .5rem .75rem;
    font-size: .8rem;
}

.rafb-log .in { color: #7ee787; }
.rafb-log .out { color: #79c0ff; }
.rafb-log .err { color: #ff7b72; }
.rafb-log .info { color: #8b949e; }
.rafb-log .script { color: #d2a8ff; }

.rafb-swatch {
    width: 100%;
    height: 140px;
    border-radius: var(--bs-border-radius-lg);
    border: 1px solid var(--bs-border-color);
}

/* Paste viewer */
.rafb-paste pre {
    margin: 0;
    max-height: 75vh;
    overflow: auto;
    border-radius: var(--bs-border-radius);
}

.rafb-paste pre code.hljs {
    padding: 1rem;
}

/* Diff */
.rafb-diff { font-size: .85rem; }
.rafb-diff .add { background: rgba(46, 160, 67, .18); }
.rafb-diff .del { background: rgba(248, 81, 73, .18); }
.rafb-diff .ln { color: var(--bs-secondary-color); user-select: none; width: 3.5em; text-align: right; padding-right: .75em; }
.rafb-diff td { padding: 0 .25rem; white-space: pre-wrap; word-break: break-all; vertical-align: top; }

/* Gamepad */
.rafb-pad { max-height: 340px; }
.rafb-pad .body { fill: var(--bs-tertiary-bg); stroke: var(--bs-border-color); stroke-width: 2; }
.rafb-pad .well { fill: none; stroke: var(--bs-border-color); stroke-width: 2; }
.rafb-pad .pbtn, .rafb-pad .pbtn-outline { fill: var(--bs-body-bg); stroke: var(--bs-border-color); stroke-width: 1.5; transition: fill .05s; }
.rafb-pad .pbtn.on { fill: var(--bs-primary); stroke: var(--bs-primary); }
.rafb-pad .pbtn.moved { stroke: var(--bs-primary); stroke-width: 3; }
.rafb-pad .fill { fill: var(--bs-primary); opacity: .85; pointer-events: none; }
.rafb-pad .lbl { font: 600 11px system-ui, sans-serif; fill: var(--bs-body-color); text-anchor: middle; pointer-events: none; }
.rafb-pad .lbl.sm { font-size: 9px; }
.rafb-stick { width: 100%; max-width: 200px; aspect-ratio: 1; }
.rafb-axis { position: relative; height: 10px; margin: 4px 0; background: var(--bs-tertiary-bg); border-radius: 5px; }
.rafb-axis .range { position: absolute; top: 0; bottom: 0; background: var(--bs-primary-bg-subtle); border-radius: 5px; }
.rafb-axis .center { position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--bs-border-color); }
.rafb-axis .mark { position: absolute; top: -3px; width: 4px; height: 16px; margin-left: -2px; background: var(--bs-primary); border-radius: 2px; }

/* Time zones */
.tz-strip { display: flex; gap: 1px; min-width: 360px; }
.tz-cell { flex: 1; text-align: center; font-size: .65rem; line-height: 1.6rem; border-radius: 2px; color: var(--bs-secondary-color); }
.tz-cell.night { background: var(--bs-tertiary-bg); }
.tz-cell.awake { background: rgba(var(--bs-primary-rgb), .12); }
.tz-cell.work { background: rgba(25, 135, 84, .28); color: var(--bs-body-color); }
.tz-cell.sel { outline: 2px solid var(--bs-primary); outline-offset: -1px; font-weight: 700; color: var(--bs-body-color); }

/* SSH / SFTP / FTP */
.rafb-terminal { height: 70vh; min-height: 320px; padding: .5rem; background: #0d1117; border-radius: var(--bs-border-radius); }
.rafb-files { max-height: 65vh; overflow-y: auto; border: 1px solid var(--bs-border-color); border-radius: var(--bs-border-radius); }
.rafb-files thead th { position: sticky; top: 0; background: var(--bs-body-bg); }

/* Hex editor */
.rafb-hex {
    position: relative;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: .8rem;
    line-height: 1.5;
    max-height: 560px;
    overflow: auto;
    padding: .5rem .75rem;
    background: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    user-select: none;
    outline: none;
}
.rafb-hex:focus { border-color: var(--bs-primary); box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .15); }
.rafb-hex .row { white-space: nowrap; margin: 0; display: block; }
.rafb-hex .off { color: var(--bs-secondary-color); margin-right: 1.5ch; }
.rafb-hex .h { display: inline-block; width: 2.6ch; text-align: center; cursor: pointer; border-radius: 2px; }
.rafb-hex .h.gap { margin-right: 1ch; }
.rafb-hex .asc { margin-left: 1.5ch; border-left: 1px solid var(--bs-border-color); padding-left: 1ch; }
.rafb-hex .a { display: inline-block; width: 1.05ch; text-align: center; cursor: pointer; border-radius: 2px; }
.rafb-hex .z { color: var(--bs-tertiary-color); }
.rafb-hex .mod { color: var(--bs-danger); font-weight: 700; }
.rafb-hex .cur { background: var(--bs-primary); color: #fff; }
.rafb-hex .cur2 { outline: 1px solid var(--bs-primary); }
.rafb-hex .r0 { background: rgba(13, 110, 253, .16); }
.rafb-hex .r1 { background: rgba(25, 135, 84, .18); }
.rafb-hex .r2 { background: rgba(255, 193, 7, .22); }
.rafb-hex .r3 { background: rgba(111, 66, 193, .18); }
.rafb-hex .r4 { background: rgba(220, 53, 69, .18); }
.rafb-hex .r5 { background: rgba(13, 202, 240, .2); }

/* Regex */
.rafb-regex-preview mark {
    padding: 0;
    background: rgba(255, 193, 7, .45);
    color: inherit;
    border-radius: 2px;
}