// ── Fluid root rem: 1rem scales with viewport ─────────────────────────────
// All sidebar/h2/font sizes downstream are in rem, so redefining root
// font-size against `vmin` (smaller of vh/vw) gives us a single sliding
// scale that's invariant under phone rotation: rotating swaps width/height
// but vmin stays the same → 1rem stays the same → navbar/footer/h2 hold
// their size. Floor 14px on cramped viewports, ceiling 22px on huge ones.
// 2.4vmin hits 16px (browser default) at vmin=667 (iPhone SE landscape).
html {
    font-size: clamp(14px, 2.4vmin, 22px);
    // Aperture foundation — locks the document viewport so content lives
    // between/behind the fixed navbar + footer sidebars instead of leaking
    // into a page-level scroll. Was opt-in per-page via body.page-X classes
    // (duplicated 5× across SCSS files); now universal. Pages that need a
    // narrower override (e.g. body.page-gameboard .container { overflow:
    // clip; }) live in their per-page SCSS.
    overflow: hidden;
}

// Layout custom properties — single source of truth for the landscape
// sidebar width (navbar/footer) + the rotated-h2 column slot to the right
// of the navbar. Container margin-left in landscape adds these so applets
// can't bleed under the wordmark.
:root {
    --sidebar-w: 5rem;
    --h2-col-w: 3rem;
}

body {
    display: flex;
    flex-direction: column;
    background-color: rgba(var(--priUser), 1);
    color: rgba(var(--secUser), 1);
    font-family: Georgia, serif;
    height: 100vh;
    overflow: hidden;

    a {
        text-decoration: none;
        font-weight: 700;
        color: rgba(var(--terUser), 1);

        &:hover {
            color: rgba(var(--ninUser), 1);
            text-shadow: 0 0 0.5rem rgba(var(--terUser), 1);
        }
    }

    .container {
        max-width: 960px;
        width: 100%;
        margin: 0 auto;
        // padding: 0 1rem;
        flex: 1;
        // Aperture container — flex-column so navbar + h2 row + page content
        // stack vertically, min-height: 0 + overflow: hidden contain the
        // content within the aperture so applet borders / titles can't
        // leak past the navbar / footer sidebars at narrow viewports.
        display: flex;
        flex-direction: column;
        min-height: 0;
        overflow: hidden;

        .navbar {
            padding: 0.75rem 0;
            border-bottom: 0.1rem solid rgba(var(--secUser), 0.4);

            .navbar-brand {
                margin-left: 1rem;
                h1 {
                    font-size: 2rem;
                }
            }

            
            .container-fluid {
                display: flex;
                align-items: center;
                gap: 1rem;
                margin-right: 0.5rem;

                .navbar-user {
                    flex: 1;
                    min-width: 0;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    gap: 0.25rem;

                    .navbar-text { flex: none; }  // prevent expansion; BYE abuts the spans
                    > form { flex-shrink: 0; order: -1; }  // BYE left of spans
                }

                > #id_cont_game,
                > #id_navbar_gate_view_btn { flex-shrink: 0; }
            }

            .navbar-text,
            .navbar-link {
                flex: 1;
                min-width: 0;
                text-align: center;

                .navbar-label {
                    display: block;
                    color: rgba(var(--secUser), 0.7);
                    font-size: 0.75rem;
                }

                .navbar-identity {
                    display: block;
                    color: rgba(var(--quaUser), 1);
                    font-size: 0.875rem;
                    overflow: hidden;
                    text-overflow: ellipsis;
                    white-space: nowrap;
                }
            }
        }

        .input-group {
            position: fixed;
            left: 0;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.25rem;
            z-index: 50;

            // Match .sky-field label — small, gold, uppercase, tracked.
            label {
                font-size: 0.6rem;
                text-transform: uppercase;
                letter-spacing: 0.1em;
                color: rgba(var(--quaUser), 0.8);
            }

            .form-control {
                width: 24rem;
                text-align: center;
            }
        }

        .form-control {
            background-color: rgba(var(--priUser), 1);
            color: rgba(var(--secUser), 1);
            border: 0.1rem solid rgba(var(--secUser), 0.5);
            --_pad-v: 0.5rem;
            padding: var(--_pad-v) 0.75rem;
            border-radius: calc((var(--_pad-v) * 2 + 1em) / 3);
            width: 100%;
            font-family: inherit;

            &.is-invalid {
                border-color: rgba(var(--priRd), 1);
            }

            &.form-control-lg {
                --_pad-v: 0.75rem;
                padding: var(--_pad-v) 1rem;
                // 1.125rem at rem=14 (small portrait clamp floor) is 15.75px
                // — just under iOS Safari's 16px auto-zoom threshold. Floor
                // at 16px to prevent the focus-zoom; native CSS max() handles
                // the unit mix Sass can't reconcile at compile time.
                font-size: unquote("max(16px, 1.125rem)");
            }

            &.is-invalid ~ .invalid-feedback {
                display: block;
            }

            &:focus {
                border-color: rgba(var(--terUser), 0.75);
                box-shadow: 0 0 0.75rem rgba(var(--terUser), 0.5);
            }
        }

        .invalid-feedback {
            display: none;
            color: rgba(var(--priRd), 1);
            font-size: 0.875rem;
            margin-top: 0.25rem;
        }

        .alert {
            padding: 0.75rem 1rem;
            margin: 0.75rem;
            border-radius: 0.5rem;
            border: 0.1rem solid rgba(var(--priYl), 0.5);
            color: rgba(var(--priYl), 1);

            &.alert-success {
                border-color: rgba(var(--priGn), 0.5);
                color: rgba(var(--priGn), 1);
            }

            &.alert-warning {
                border-color: rgba(var(--priOr), 0.5);
                color: rgba(var(--priOr), 1);
            }
        }

        .row {
            padding: 2rem 0;
            // Aperture: the h2-row mustn't shrink when the page-content
            // child fills the remaining vertical space. Universal — was
            // duplicated in every body.page-X { .row { flex-shrink: 0 } }.
            flex-shrink: 0;

            .col-md-12 {
                width: 100%;
                justify-content: center;
            }

            .col-lg-6 {
                max-width: inherit;
                margin: 0 1rem;

                // Two-span title: <span>BILL</span><span>POST</span>. First
                // word (always 4 letters: BILL/DASH/GAME/etc.) gets 45% of
                // the title width; the variable second word fills the
                // remaining 55%. Letters within each span spread via
                // text-align: justify + text-justify: inter-character. The
                // first-span colour shifts to --quaUser so the two-tone
                // heading reads "Bill | Post" / "Dash | Sky".
                h2 {
                    display: flex;
                    font-size: 3rem;
                    color: rgba(var(--secUser), 0.75);
                    margin-bottom: 1rem;
                    text-transform: uppercase;
                    text-shadow:
                        var(--title-shadow-offset) var(--title-shadow-offset) 0 rgba(0, 0, 0, 0.8)
                    ;

                    // Each word-span hosts per-letter <span>s injected by the
                    // h2-letter-split script in base.html — display: flex +
                    // justify-content: space-between distributes those letters
                    // across the slot's width (or height in landscape's
                    // writing-mode: vertical-rl). text-justify: inter-character
                    // would do the same in pure CSS, but iOS Safari + Firefox
                    // silently fall back to inter-word for Latin scripts, which
                    // can't split a single word — letters end up clustered at
                    // the slot's start with empty space trailing. The flex
                    // approach works everywhere.
                    > span {
                        display: flex;
                        justify-content: space-between;
                        align-items: center;
                        box-sizing: border-box;
                    }
                    // Padding-inline (logical) creates the natural visual gap
                    // between the two words at the 45/55 boundary — works for
                    // both portrait (horizontal) AND the landscape rotated
                    // wordmark (vertical-rl writing mode).
                    > span:first-child {
                        flex: 0 0 45%;
                        padding-inline-end: 0.4em;
                        color: rgba(var(--quaUser), 0.75);
                    }
                    > span:last-child {
                        flex: 0 0 55%;
                        padding-inline-start: 0.4em;
                    }
                }
            }
        }
    }
}

@media (min-width: 1200px) {
    body .container {
        max-width: 1200px;
    }
}

@media (orientation: landscape) {
    // ── Sidebar layout: navbar ← left, footer → right ────────────────────────────
    body {
        flex-direction: row;
    }

    // Navbar → fixed left sidebar (width derives from --sidebar-w which is
    // fluid via the rem-redefine above; no per-breakpoint width jumps).
    body .container .navbar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: var(--sidebar-w);
        padding: 0.5rem 0;
        border-bottom: none;
        border-right: 0.1rem solid rgba(var(--secUser), 0.4);
        background-color: rgba(var(--priUser), 1);
        z-index: 100;
        overflow: hidden;

        .container-fluid {
            flex-direction: column;
            height: 100%;
            max-height: 700px;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 0 0.25rem;
            margin: 0;  // reset portrait margin-right: 0.5rem so container fills full sidebar width

            > #id_cont_game,
            > #id_navbar_gate_view_btn { flex-shrink: 0; order: -1; }  // cont-game / GATE VIEW above brand

            .navbar-user {
                flex-direction: column;
                align-items: center;
                gap: 0.25rem;
                .navbar-text { margin: 0; }  // cancel landscape margin:auto so BYE abuts
                > form { order: 0; .btn { margin-top: 0; } }  // abut spans
            }
        }

        .navbar-brand h1 {
            writing-mode: vertical-rl;
            transform: rotate(180deg);
            font-size: 1.2rem;
            line-height: 1.2;
            white-space: nowrap;
            // margin-right: 3.25rem;
        }

        .navbar-brand {
            order: 1;  // brand at bottom
            width: 100%;
            margin-left: 0;  // reset portrait margin-left: 1rem
            display: flex;
            justify-content: center;
        }

        .navbar-link { display: none; }

        .navbar-text {
            writing-mode: vertical-rl;
            transform: rotate(180deg);
            font-size: 0.65rem;
            white-space: nowrap;
            margin: auto 0;

            .navbar-label { opacity: 0.7; }
        }

        // .btn-primary {
        //     width: 4rem;
        //     height: 4rem;
        //     font-size: 0.875rem;
        //     border-width: 0.21rem;
        // }

        // Login form: offset from fixed sidebars in landscape
        .input-group {
            left: var(--sidebar-w);
            right: var(--sidebar-w);

            .navbar-text {
                writing-mode: horizontal-tb;
                transform: none;
                font-size: 0.75rem;
                white-space: normal;
                margin: 0 0 0.25rem;
                text-align: center;
            }
        }
    }

    // Container: fill center, compensate for fixed sidebars on both sides
    // AND for the rotated-h2 column on the left (so applets can't bleed
    // under the wordmark — true aperture clipping).
    // max-width: none overrides the @media (min-width: 1200px) rule above
    // so the container fills all available space between the sidebars.
    body .container {
        flex: 1;
        min-width: 0;
        max-width: none;
        margin-left: calc(var(--sidebar-w) + var(--h2-col-w));
        margin-right: var(--sidebar-w);
        padding: 0 0.5rem;
    }

    // Header row: h2 rotates into the dedicated --h2-col-w slot just right
    // of the navbar. position:fixed takes h2 out of flow; .row collapses
    // to zero height automatically. Resets portrait flex so the rotated
    // wordmark renders as one continuous title (not split 45/55 here).
    body .container .row {
        padding: 0;
        margin: 0;
    }
    body .container .row .col-lg-6 h2 {
        position: fixed;
        left: var(--sidebar-w);
        width: var(--h2-col-w);
        top: 50%;
        height: 80vh;              // explicit height so the flex 45/55 % basis resolves
        transform: translateY(-50%) rotate(180deg);
        writing-mode: vertical-rl; // inline axis becomes top-to-bottom; flex stacks on it
        // Per-letter flex spread (justify-content: space-between on each word
        // span) fills the slot regardless of font-size, so we only need to
        // cap font-size by vh so each letter glyph stays smaller than slot /
        // letter-count. Worst case: HOWDY STRANGER (8ch second word) in 55%
        // of 80vh on a 375-tall iPhone SE landscape → 165px slot ÷ 8 ≈ 20px
        // max glyph height; clamp's 4.4vh + 1.2rem floor gives 16.5–16.8px
        // at that viewport, well under 20.
        font-size: clamp(1.2rem, 4.4vh, 2.75rem);
        margin: 0;
        z-index: 85;
        pointer-events: none;
        // Inherits display: flex + the per-span flex 45/55 + padding-inline
        // boundary from the portrait base. With writing-mode: vertical-rl the
        // flex axis runs vertically, so first-span (BILL) takes 45% of the
        // height (becomes bottom 45% after rotate(180deg)) and second-span
        // (POST) takes the upper 55%. padding-inline-end resolves to the
        // bottom edge of the first span — natural break between words.
    }

    // Footer → fixed right sidebar (mirrors navbar approach — explicit right boundary)
    // Use body #id_footer (specificity 0,1,0,1) to beat base #id_footer (0,1,0,0)
    // which compiles later in the output and would otherwise override height: 100vh.
    body #id_footer {
        position: fixed;
        right: 0;
        top: 0;
        width: var(--sidebar-w);
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-top: none;
        border-left: 0.1rem solid rgba(var(--secUser), 0.3);
        background-color: rgba(var(--priUser), 1);  // opaque: masks tray sliding behind it
        padding: 1rem 0;
        gap: 0;
        z-index: 100;

        #id_footer_nav {
            flex-direction: column-reverse;
            width: auto;
            max-width: none;
            gap: 1.5rem !important;
            margin-bottom: 4rem;

            a {
                font-size: 1.75rem;
                display: flex;
                justify-content: center;
                align-items: center;
            }
        }

        // ©2026 Dis Co. — single-line vertical strip at the right edge of
        // the right sidebar (= the very right edge of the viewport in
        // landscape). Reads bottom-to-top via writing-mode: vertical-rl +
        // rotate(180deg) — same pattern as the navbar's rotated brand
        // wordmark. Tucks into the empty 0.875rem gutter between the
        // viewport edge and the centred icon/btn column, no overlap.
        .footer-container {
            position: absolute;
            right: 0.125rem;
            top: auto;
            line-height: 1 !important;
            color: rgba(var(--secUser), 1);
            writing-mode: vertical-rl;
            transform: rotate(180deg);
            white-space: nowrap;

            br { display: none; }

            small {
                font-size: 0.75rem !important;
            }
        }
    }
}

// Footer typography refinements that only kick in once the viewport is
// wide enough to clear the cramped phone-landscape regime. Sidebar
// dimensions themselves are now fluid via rem and don't need a per-
// breakpoint width override (the old ≥1800px doubling block is gone).
@media (orientation: landscape) and (min-width: 700px) {
    body #id_footer {
        #id_footer_nav {
            gap: 3rem !important;

            a {
                font-size: 1.75rem;
                display: flex;
                justify-content: center;
                align-items: center;
            }
        }

        .footer-container {
            line-height: 1;
            // margin-top vestige of the absolute-top-anchored layout —
            // dropped now that the rotated text is bottom-anchored.

            small {
                font-size: 1rem;
            }
        }
    }
}

@media (orientation: portrait) and (max-width: 500px) {
    body .container  {
        .navbar {
            padding: 0 0 0.25rem 0;

            .navbar-brand h1 {
                font-size: 1.2rem;
            }
        }

        // Per-letter flex spread fills each 45/55 slot regardless of font-size,
        // so we just need to cap the glyph size by viewport width to keep the
        // worst-case title (HOWDY STRANGER, 8ch second word) from clipping at
        // tiny mobile widths. clamp picks max(1.3rem, 5vw) capped at 2rem —
        // at 320w → 18.2px, 390w → 19.5px, 430w → 21.5px.
        // padding-inline boundary bumped from 0.4em → 0.6em (each side) so the
        // last letter of word 1 (H) and first letter of word 2 (B) don't run
        // together at the cramped portrait font-size.
        .row .col-lg-6 h2 {
            margin: 0;
            font-size: clamp(1.3rem, 5vw, 2rem);

            > span:first-child { padding-inline-end:   0.6em; }
            > span:last-child  { padding-inline-start: 0.6em; }
        }
    }
}

#id_footer {
    flex-shrink: 0;
    height: 6rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
    padding: 1rem 1rem;
    border-top: 0.1rem solid rgba(var(--secUser), 0.3);
    // background: linear-gradient(
    //     to top,
    //     rgba(var(--priUser), 1) 25%,
    //     transparent 100%
    // );

    #id_footer_nav {
        display: flex;
        justify-content: space-evenly;
        width: 80%;
        max-width: 500px;

        a {
            font-size: 1.75rem;
            color: rgba(var(--secUser), 0.6);
            text-shadow:
                0 0 0.25rem rgba(0, 0, 0, 0.25),
            ;
            
            &.active {
                color: rgba(var(--quaUser), 1);
                text-shadow:
                    0 0 0.5rem rgba(0, 0, 0, 0.5),
                ;
            }
            
            &:hover {
                color: rgba(var(--quaUser), 1);
                text-shadow:
                    0 0 1rem rgba(0, 0, 0, 0.25),
                    0 0 0.5rem rgba(var(--ninUser), 0.25)
                ;
                
            }
        }
    }

    .footer-container {
        br { display: none; }

        small {
            font-size: 0.75rem;
            opacity: 1;
        }
    }
}

.forthcoming {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-style: italic;
    opacity: 0.6;
}

// Ordinal superscript: 21st, 2nd, 3rd etc. — matches .tt-ord but globally available.
.ord {
    font-size: 0.6em;
    vertical-align: 0.25em;
    line-height: 0;
    margin-left: -0.1em;
    letter-spacing: 0;
}

#id_guard_portal {
    display: none;
    position: fixed;
    z-index: 10000;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    background-color: rgba(var(--tooltip-bg), 0.75);
    backdrop-filter: blur(6px);
    border: 0.1rem solid rgba(var(--secUser), 0.4);
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.4);

    &.active {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .guard-message {
        font-size: 0.85rem;
        color: rgba(var(--secUser), 0.9);
        text-align: center;
        white-space: nowrap;
    }

    .guard-actions {
        display: flex;
        gap: 0.5rem;
    }
}

.card-ref {
    color: rgba(var(--terUser), 1) !important;
    font-weight: 600 !important;
}