/* ==========================================================================
   APF Common — sleek DARK glass skin (framework + stage stickiness only)
   ========================================================================== */

.apf-common-box,
.apf-root.apf-common-shell {
    /* layout */
    --gap: 14px;
    --controls-basis: 32%;
    --controls-min: 260px;
    --radius: 14px;
    /* sticky offsets */
    --stage-sticky-top-desktop: clamp(28px, 18vh, 140px);
    --stage-sticky-top-mobile: 10px;
    --stage-sticky-z: 40;
    /* glass + gradient palette */
    --bg-0: #070a0f;
    --bg-1: #0b1118;
    --bg-2: #0f1520;
    --glass: rgba(17, 23, 34, .55);
    --glass-strong: rgba(17, 23, 34, .75);
    --border: rgba(255,255,255,.08);
    --border-2: rgba(255,255,255,.12);
    --glow: 180deg 70% 55%;
    --accent: #63b3ed;
    --accent-2: #8bd0ff;
    --text: #e7edf6;
    --text-dim: #b7c4d8;
    --text-mute: #8ea0ba;
    --canvas-max-w: 100%;
    --canvas-min-h: 440px;
    --canvas-bg: rgba(9,14,22,.6);
    --outer-shadow: 0 20px 60px -20px rgba(0,0,0,.55);
    --inner-ring: 0 0 0 1px rgba(255,255,255,.03) inset;
    /* NEW: constrain whole UI */
    --ui-max-w: 1400px;
}

/* Scope-safe page background */
[data-apf="common"] {
    background: radial-gradient(1200px 700px at 85% -5%, rgba(99,179,237,.15), transparent 60%), radial-gradient(900px 500px at 5% 10%, rgba(139,208,255,.10), transparent 55%), linear-gradient(180deg, var(--bg-1), var(--bg-2));
}

/* Root wrapper */
.apf-common-box {
    position: relative;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)), var(--glass);
    -webkit-backdrop-filter: blur(10px) saturate(120%);
    backdrop-filter: blur(10px) saturate(120%);
    box-shadow: var(--outer-shadow);
    color: var(--text);
    padding: 16px 18px;
    overflow: visible;
    /* NEW: centered + max width */
    max-width: var(--ui-max-w);
    margin-left: auto;
    margin-right: auto;
}

    /* gradient border glow */
    .apf-common-box::before {
        content: "";
        position: absolute;
        inset: -1px;
        border-radius: calc(var(--radius) + 1px);
        pointer-events: none;
        background: linear-gradient(120deg, color-mix(in oklab, var(--accent) 45%, transparent) 0%, transparent 30%, transparent 70%, color-mix(in oklab, var(--accent-2) 45%, transparent) 100%);
        mask: linear-gradient(#000, #000), linear-gradient(#000, #000);
        -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
        -webkit-mask-composite: xor;
        mask-composite: exclude;
        padding: 1px;
        opacity: .35;
    }


/* -----------------------------
   Two-column layout
------------------------------ */
[data-apf="common"] > .apf-main {
    display: flex !important;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: var(--gap);
    min-width: 0;
    grid-template-columns: initial !important;
    grid-auto-flow: initial !important;
}

    [data-apf="common"] > .apf-main > .apf-col {
        min-width: 0;
        box-sizing: border-box;
    }

        /* Left: controls column (stack sections) */
        [data-apf="common"] > .apf-main > .apf-col.apf-controls {
            order: 0;
            flex: 0 0 var(--controls-basis);
            max-width: var(--controls-basis);
            min-width: var(--controls-min);
            display: flex;
            flex-direction: column;
            gap: var(--gap);
        }

        /* Right: stage/preview column */
        [data-apf="common"] > .apf-main > .apf-col.apf-preview,
        [data-apf="common"] > .apf-main > .apf-col.apf-stagecol {
            order: 1;
            flex: 1 1 calc(100% - var(--controls-basis));
            max-width: calc(100% - var(--controls-basis));
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: var(--gap);
            overflow: visible; /* allow sticky child to escape clipping */
            position: relative; /* z-index context for sticky */
        }

/* Desktop sticky (opt-in: add .apf-stage--sticky to the element to pin) */
[data-apf="common"] .apf-preview .apf-stage--sticky {
    position: sticky;
    top: var(--stage-sticky-top-desktop);
    z-index: var(--stage-sticky-z);
    scroll-margin-top: calc(var(--stage-sticky-top-desktop) + 12px);
}

/* -----------------------------
   Mobile: stage first + sticky
------------------------------ */
@media (max-width: 900px) {
    [data-apf="common"] > .apf-main {
        flex-direction: column;
    }

        [data-apf="common"] > .apf-main > .apf-col.apf-controls,
        [data-apf="common"] > .apf-main > .apf-col.apf-preview,
        [data-apf="common"] > .apf-main > .apf-col.apf-stagecol {
            order: initial;
            flex: 1 1 auto;
            max-width: 100%;
        }

        /* Stage goes on top */
        [data-apf="common"] > .apf-main > .apf-col.apf-preview {
            order: -1;
        }

    /* Pin hard to top; stronger glass so controls scroll underneath cleanly */
    [data-apf="common"] .apf-preview .apf-stage--sticky {
        top: var(--stage-sticky-top-mobile);
        scroll-margin-top: calc(var(--stage-sticky-top-mobile) + 10px);
        background: var(--glass-strong);
        -webkit-backdrop-filter: blur(12px) saturate(130%);
        backdrop-filter: blur(12px) saturate(130%);
        border-radius: var(--radius);
        box-shadow: 0 14px 40px -18px rgba(0,0,0,.55), var(--inner-ring);
        border: 1px solid var(--border-2);
    }
}

/* -----------------------------
   Section cards (controls container chrome only)
------------------------------ */
.apf-col.apf-controls .control.apf-control,
.apf-col.apf-controls [data-apf-control] {
    background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)), var(--glass);
    -webkit-backdrop-filter: blur(8px) saturate(120%);
    backdrop-filter: blur(8px) saturate(120%);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    margin: 0;
    box-shadow: 0 12px 40px -20px rgba(0,0,0,.55), var(--inner-ring);
}

.apf-col.apf-controls .apf-section__header,
.apf-col.apf-controls .apf-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.apf-col.apf-controls h2,
.apf-col.apf-controls h3,
.apf-col.apf-controls h4 {
    margin: 0;
    color: var(--text);
    font-size: 14px;
    letter-spacing: .2px;
    font-weight: 650;
}

/* -----------------------------
   Canvas + stage glass
------------------------------ */
[data-apf="common"] .mid-canvas-wrapper {
    position: relative;
    width: 100%;
    max-width: var(--canvas-max-w);
    min-height: var(--canvas-min-h);
    background: radial-gradient(120% 120% at 110% -10%, rgba(99,179,237,.12), transparent 60%), radial-gradient(90% 80% at -10% 0%, rgba(139,208,255,.10), transparent 60%), var(--canvas-bg);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 18px 65px -28px rgba(0,0,0,.7), var(--inner-ring);
    -webkit-backdrop-filter: blur(6px) saturate(120%);
    backdrop-filter: blur(6px) saturate(120%);
}

    /* decorative ring glow */
    [data-apf="common"] .mid-canvas-wrapper::after {
        content: "";
        position: absolute;
        inset: -1px;
        pointer-events: none;
        border-radius: inherit;
        background: conic-gradient(from 0deg, hsla(var(--glow) / .0) 0%, hsla(var(--glow) / .25) 15%, hsla(var(--glow) / .0) 30%, hsla(var(--glow) / .0) 70%, hsla(var(--glow) / .25) 85%, hsla(var(--glow) / .0) 100%);
        mix-blend-mode: screen;
        opacity: .35;
    }

/* Stage internals */
[data-apf="common"] .mid-preview-area,
[data-apf="common"] .mid-canvas {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: inherit;
}

[data-apf="common"] .mid-stage {
    position: relative;
    line-height: 0;
}

[data-apf="common"] .mid-canvas-wrapper.has-size .mid-preview-area,
[data-apf="common"] .mid-canvas-wrapper.has-size .mid-canvas {
    height: auto;
    min-height: 0;
}

[data-apf="common"] .mid-canvas-wrapper.has-size .mid-stage {
    width: var(--canvas-w);
    height: var(--canvas-h);
    margin: 0 auto;
    aspect-ratio: auto;
}

[data-apf="common"] .mid-stage img.mid-preview-img,
[data-apf="common"] .mid-stage img.mid-preview-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: var(--fit, contain);
    object-position: var(--anchor, center);
    pointer-events: none;
    z-index: 3;
}

[data-apf="common"] canvas.apf-contour-base {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

[data-apf="common"] canvas.apf-contour-ants,
[data-apf="common"] svg.apf-contour-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 4;
}

/* Placeholder */
[data-apf="common"] .apf-canvas-placeholder {
    min-height: 140px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: var(--text-mute);
    background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)), rgba(17,23,34,.4);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

/* -----------------------------
   Tier host spacing
------------------------------ */
#mid-tiered-pricing.apf-tiered-dynamic {
    margin-top: 12px;
}

/* -----------------------------
   Utilities (non-invasive)
------------------------------ */
.apf-hide {
    display: none !important;
}

.apf-scroll {
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

/* prevent theme margin collapse */
[data-apf="common"] .apf-col > *:first-child {
    margin-top: 0;
}

[data-apf="common"] .apf-col > *:last-child {
    margin-bottom: 0;
}

/* Compact tables (if any inside controls) – chrome only */
.apf-col.apf-controls table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(17,23,34,.45);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

    .apf-col.apf-controls table th,
    .apf-col.apf-controls table td {
        padding: 8px 10px;
        font-size: 12px;
        color: var(--text-dim);
        border-bottom: 1px solid rgba(255,255,255,.06);
    }

    .apf-col.apf-controls table th {
        color: var(--text);
        font-weight: 650;
        background: rgba(255,255,255,.03);
    }

    .apf-col.apf-controls table tr:last-child td {
        border-bottom: 0;
    }

/* Scrollbars (webkit) */
[data-apf="common"] *::-webkit-scrollbar {
    height: 10px;
    width: 10px;
}

[data-apf="common"] *::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,.15);
    border-radius: 10px;
}

[data-apf="common"] *::-webkit-scrollbar-track {
    background: rgba(255,255,255,.04);
}

/* Focus-visible */
[data-apf="common"] *:focus-visible {
    outline: 2px solid color-mix(in oklab, var(--accent) 65%, transparent);
    outline-offset: 2px;
    border-radius: 10px;
}

/* Motion preferences */
@media (prefers-reduced-motion: reduce) {
    .apf-common-box, .apf-common-box * {
        transition: none !important;
        animation: none !important;
    }
}