/* ==========================================================================
   app.css — BRUTALISM.

   Raw edges, hard borders, flat colour, no rounding, no soft shadows.
   A shadow is a solid black block sitting behind the thing, and pressing a
   button pushes it into that block.

   The rules of the house:
     * every edge is a 2px black line (3px where it matters)
     * nothing is rounded
     * no gradients, no translucency, no blur
     * labels are uppercase monospace
     * one loud accent — signal yellow — and one for actions — electric blue
   ========================================================================== */

:root {
    /* The palette. Flat, few, loud. */
    --black: #000000;
    --white: #ffffff;
    --concrete: #e4e4e4;
    --concrete-2: #d2d2d2;
    --ash: #6b6b6b;

    --yellow: #ffe600;
    --blue: #0022ff;
    --red: #ff2b2b;
    --green: #00a04a;

    --ink: #000000;
    --ink-soft: #1f1f1f;
    --ink-faint: #6b6b6b;
    --paper: #ffffff;
    --paper-soft: #e4e4e4;

    /* The lines. */
    --bw: 2px;
    --bw-heavy: 3px;
    --line: 2px solid var(--black);
    --line-heavy: 3px solid var(--black);

    /* A shadow is a block, not a blur. */
    --push: 5px 5px 0 var(--black);
    --push-sm: 3px 3px 0 var(--black);

    --font-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
    --font-sans: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;

    --nav-width: 250px;
    --topbar-height: 62px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font: 15px/1.5 var(--font-sans);
    color: var(--ink);
    background: var(--paper-soft);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--red); }

h1, h2, h3 {
    margin: 0;
    font-family: var(--font-mono);
    font-weight: 700;
    letter-spacing: -.02em;
    text-transform: uppercase;
}

::selection { background: var(--yellow); color: var(--black); }

/* --------------------------------------------------------------------------
   The boot screen
   -------------------------------------------------------------------------- */
.boot {
    height: 100%;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 16px;
    color: var(--ink-faint);
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: .12em;
}

.boot__logo {
    width: 64px;
    height: 64px;
    border: var(--bw-heavy) solid var(--black);
    background: var(--yellow);
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 30px;
    color: var(--black);
    box-shadow: var(--push);
}

/* --------------------------------------------------------------------------
   Signing in
   -------------------------------------------------------------------------- */
.login {
    min-height: 100%;
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--concrete);
}

.login__card {
    width: min(460px, 100%);
    background: var(--white);
    border: var(--bw-heavy) solid var(--black);
    box-shadow: 10px 10px 0 var(--black);
    padding: 0;
}

.login__title {
    font-size: 34px;
    padding: 22px 28px;
    border-bottom: var(--bw-heavy) solid var(--black);
    background: var(--yellow);
    margin: 0;
}

.login__sub {
    margin: 0;
    padding: 18px 28px 0;
    color: var(--ink-soft);
    font-family: var(--font-mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.login__form { display: grid; gap: 16px; padding: 22px 28px 28px; }
.login__message { margin: 0; min-height: 22px; font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--red); text-transform: uppercase; }
.login__note { margin: 0; padding: 14px 28px; border-top: var(--bw) solid var(--black); background: var(--concrete); font-size: 13px; color: var(--ink-soft); }

/* --------------------------------------------------------------------------
   The shell
   -------------------------------------------------------------------------- */
.shell {
    min-height: 100%;
    display: grid;
    grid-template-columns: var(--nav-width) 1fr;
    grid-template-rows: var(--topbar-height) 1fr;
    grid-template-areas:
        "topbar topbar"
        "nav    content";
}

.topbar {
    grid-area: topbar;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 18px;
    background: var(--white);
    border-bottom: var(--bw-heavy) solid var(--black);
    position: sticky;
    top: 0;
    z-index: 40;
}

.topbar__menu {
    display: none;
    background: var(--white);
    border: var(--bw) solid var(--black);
    font-size: 18px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    line-height: 1;
    font-weight: 700;
}

.topbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 17px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--black);
    text-decoration: none;
}

.topbar__brand:hover { text-decoration: none; color: var(--black); }

.topbar__logo {
    width: 34px;
    height: 34px;
    border: var(--bw) solid var(--black);
    background: var(--black);
    color: var(--yellow);
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 17px;
}

.topbar__search {
    flex: 1;
    max-width: 460px;
    height: 38px;
    border: var(--bw) solid var(--black);
    border-radius: 0;
    padding: 0 12px;
    font-family: var(--font-mono);
    font-size: 13px;
    background: var(--white);
    color: var(--black);
    box-shadow: var(--push-sm);
}

.topbar__search:focus {
    outline: 3px solid var(--yellow);
    outline-offset: 0;
}

.topbar__user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 13px;
    text-transform: uppercase;
}

.topbar__avatar {
    width: 34px;
    height: 34px;
    border: var(--bw) solid var(--black);
    background: var(--blue);
    color: var(--white);
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 14px;
}

.topbar__name { color: var(--ink-soft); }

/* --------------------------------------------------------------------------
   The navigation
   -------------------------------------------------------------------------- */
.nav {
    grid-area: nav;
    background: var(--white);
    border-right: var(--bw-heavy) solid var(--black);
    padding: 0 0 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    position: sticky;
    top: var(--topbar-height);
    height: calc(100vh - var(--topbar-height));
    /* A scrollbar you can actually see, so it never looks like the menu
       simply stops. */
    scrollbar-width: thin;
    scrollbar-color: var(--black) var(--concrete);
}

.nav::-webkit-scrollbar { width: 12px; }
.nav::-webkit-scrollbar-track { background: var(--concrete); border-left: var(--bw) solid var(--black); }
.nav::-webkit-scrollbar-thumb { background: var(--black); border: 2px solid var(--concrete); }

/* The groups fold away. With around thirty screens, showing them all at
   once pushes half of them below the bottom of the panel with no sign
   that they are there. Folded, the whole menu is a screen high. */
.nav__group { border-bottom: var(--bw) solid var(--black); }

.nav__group-title {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--black);
    padding: 9px 12px 9px 14px;
    background: var(--concrete);
    border: 0;
    border-bottom: var(--bw) solid var(--black);
    cursor: pointer;
    text-align: left;
    appearance: none;
}

.nav__group-title:hover { background: var(--yellow); }

.nav__chevron {
    flex: 0 0 auto;
    font-size: 13px;
    line-height: 1;
    color: var(--black);
}

.nav__list { display: none; }

.nav__group.is-open .nav__list { display: block; }

.nav__group.is-open .nav__group-title { background: var(--black); color: var(--yellow); }
.nav__group.is-open .nav__group-title:hover { background: var(--yellow); color: var(--black); }

.nav__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 14px;
    color: var(--black);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--concrete-2);
}

.nav__item:hover {
    background: var(--yellow);
    color: var(--black);
    text-decoration: none;
}

/* The foot of the menu: a way to see every screen laid out flat. */
.nav__foot {
    padding: 12px 14px 16px;
    border-top: var(--bw) solid var(--black);
    position: sticky;
    bottom: 0;
    background: var(--white);
}

.nav__all {
    width: 100%;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 8px 10px;
    background: var(--concrete);
    color: var(--black);
    border: var(--bw) solid var(--black);
    cursor: pointer;
    box-shadow: var(--push-sm);
}

.nav__all:hover { background: var(--yellow); }
.nav__all:active { transform: translate(3px, 3px); box-shadow: none; }

.nav__item.is-active {
    background: var(--black);
    color: var(--yellow);
    font-weight: 700;
}

.nav__icon { width: 20px; text-align: center; font-size: 15px; }

/* --------------------------------------------------------------------------
   The content
   -------------------------------------------------------------------------- */
.content {
    grid-area: content;
    padding: 26px 28px 70px;
    min-width: 0;
}

.content--full { padding: 0; }

.module { max-width: 1200px; }

.module__head {
    display: flex;
    align-items: flex-end;
    gap: 18px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.module__title {
    font-size: 27px;
    padding-bottom: 6px;
    border-bottom: var(--bw-heavy) solid var(--black);
    display: inline-block;
}

.module__sub {
    margin: 8px 0 0;
    color: var(--ink-soft);
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.module__body { display: grid; gap: 20px; }

.loading {
    padding: 44px 0;
    color: var(--ink-faint);
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: .1em;
}

.muted { color: var(--ink-faint); }
.empty {
    color: var(--ink-faint);
    padding: 30px 0;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: .06em;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background: var(--white);
    border: var(--bw) solid var(--black);
    box-shadow: var(--push);
    overflow: hidden;
}

.card__title {
    font-size: 12px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--black);
    padding: 12px 16px;
    border-bottom: var(--bw) solid var(--black);
    background: var(--concrete);
    margin: 0;
}

.card__body { padding: 16px 18px 20px; }

.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }

/* --------------------------------------------------------------------------
   The figures along the top
   -------------------------------------------------------------------------- */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat {
    background: var(--white);
    border: var(--bw) solid var(--black);
    box-shadow: var(--push-sm);
    padding: 16px;
}

.stat__value {
    font-family: var(--font-mono);
    font-size: clamp(17px, 1.5vw, 23px);
    font-weight: 700;
    letter-spacing: -.03em;
    font-variant-numeric: tabular-nums;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.stat__label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--ink-faint);
    margin-top: 6px;
    border-top: var(--bw) solid var(--black);
    padding-top: 6px;
}

/* --------------------------------------------------------------------------
   Bars (the dashboard)
   -------------------------------------------------------------------------- */
.bars { display: grid; gap: 10px; }

.bar { display: grid; grid-template-columns: 130px 1fr minmax(72px, auto); align-items: center; gap: 12px; font-size: 13px; }

.bar__label {
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 700;
}

.bar__track { background: var(--concrete); border: var(--bw) solid var(--black); height: 18px; }
.bar__fill { height: 100%; background: var(--blue); }
.bar__value {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.links { display: grid; gap: 10px; }

.links a {
    display: block;
    padding: 12px 14px;
    border: var(--bw) solid var(--black);
    background: var(--white);
    color: var(--black);
    font-family: var(--font-mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .04em;
    text-decoration: none;
    box-shadow: var(--push-sm);
}

.links a:hover { background: var(--yellow); transform: translate(3px, 3px); box-shadow: none; }

/* --------------------------------------------------------------------------
   The toolbar above a list
   -------------------------------------------------------------------------- */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.toolbar__search, .toolbar__select {
    height: 40px;
    border: var(--bw) solid var(--black);
    border-radius: 0;
    padding: 0 12px;
    font-family: var(--font-mono);
    font-size: 13px;
    background: var(--white);
    color: var(--black);
    box-shadow: var(--push-sm);
}

.toolbar__search { min-width: 250px; }
.toolbar__search:focus, .toolbar__select:focus { outline: 3px solid var(--yellow); outline-offset: 0; }

.toolbar__count {
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--ink-faint);
    border: var(--bw) solid var(--black);
    background: var(--concrete);
    padding: 6px 10px;
}

.toolbar__spacer { flex: 1; }

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
.table-wrap {
    background: var(--white);
    border: var(--bw-heavy) solid var(--black);
    overflow: auto;
    box-shadow: var(--push);
}

.table { width: 100%; border-collapse: collapse; font-size: 14px; }

.table th {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--black);
    padding: 11px 14px;
    border-bottom: var(--bw-heavy) solid var(--black);
    border-right: var(--bw) solid var(--black);
    background: var(--concrete);
    position: sticky;
    top: 0;
    white-space: nowrap;
}

.table th:last-child { border-right: 0; }

.table td {
    padding: 10px 14px;
    border-bottom: var(--bw) solid var(--concrete-2);
    border-right: 1px solid var(--concrete-2);
    vertical-align: top;
}

.table td:last-child { border-right: 0; }
.table tr:last-child td { border-bottom: 0; }
.table tr.is-clickable { cursor: pointer; }
.table tr.is-clickable:hover td { background: var(--yellow); }

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.field { display: grid; gap: 6px; font-size: 13px; align-content: start; }

.field__label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--black);
}

.field__req { color: var(--red); font-style: normal; margin-left: 4px; }

.field__hint {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-faint);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.field input, .field select, .field textarea {
    font-family: var(--font-mono);
    font-size: 14px;
    padding: 10px 12px;
    border: var(--bw) solid var(--black);
    border-radius: 0;
    background: var(--white);
    color: var(--black);
    width: 100%;
    box-shadow: var(--push-sm);
}

.field textarea { resize: vertical; }

.field input:focus, .field select:focus, .field textarea:focus {
    outline: 3px solid var(--yellow);
    outline-offset: 0;
    border-color: var(--black);
}

.field--check { grid-template-columns: auto 1fr; align-items: center; }
.field--check input { width: 18px; height: 18px; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    border-radius: 0;
    border: var(--bw) solid var(--black);
    padding: 11px 18px;
    cursor: pointer;
    background: var(--white);
    color: var(--black);
    white-space: nowrap;
    box-shadow: var(--push-sm);
    transition: none;
}

.btn:hover { background: var(--yellow); }
.btn:active { transform: translate(3px, 3px); box-shadow: none; }
.btn:disabled { opacity: .5; cursor: default; transform: none; box-shadow: var(--push-sm); }

.btn--primary { background: var(--blue); border-color: var(--black); color: var(--white); }
.btn--primary:hover { background: var(--black); color: var(--yellow); }

.btn--wide { width: 100%; }

.btn--quiet { border-color: transparent; background: transparent; color: var(--black); box-shadow: none; }
.btn--quiet:hover { background: var(--yellow); border-color: var(--black); }

.btn--danger { background: var(--red); border-color: var(--black); color: var(--white); }
.btn--danger:hover { background: var(--black); color: var(--red); }

/* --------------------------------------------------------------------------
   Dialogs
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .62);
    display: grid;
    place-items: center;
    padding: 24px;
    z-index: 100;
    opacity: 0;
    transition: opacity .1s linear;
}

.modal-overlay.is-open { opacity: 1; }

.modal {
    width: min(560px, 100%);
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: var(--bw-heavy) solid var(--black);
    box-shadow: 10px 10px 0 var(--black);
    transform: translateY(6px);
    transition: transform .1s linear;
}

.modal-overlay.is-open .modal { transform: none; }
.modal--wide { width: min(900px, 100%); }

.modal__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 20px;
    border-bottom: var(--bw-heavy) solid var(--black);
    background: var(--yellow);
}

.modal__head h2 { font-size: 16px; }

.modal__close {
    background: var(--white);
    border: var(--bw) solid var(--black);
    width: 30px;
    height: 30px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    line-height: 1;
    box-shadow: var(--push-sm);
}

.modal__close:active { transform: translate(3px, 3px); box-shadow: none; }

.modal__body { padding: 20px; overflow: auto; background: var(--white); }
.modal__foot {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 20px;
    border-top: var(--bw-heavy) solid var(--black);
    background: var(--concrete);
}

/* --------------------------------------------------------------------------
   Toasts
   -------------------------------------------------------------------------- */
.toast-host {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: grid;
    gap: 12px;
    z-index: 200;
}

.toast {
    background: var(--white);
    color: var(--black);
    border: var(--bw-heavy) solid var(--black);
    box-shadow: var(--push);
    padding: 14px 18px;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    max-width: 380px;
}

.toast--good { background: var(--green); color: var(--white); }
.toast--bad { background: var(--red); color: var(--white); }
.toast.is-going { display: none; }

/* --------------------------------------------------------------------------
   The booth map
   -------------------------------------------------------------------------- */
.legend {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .06em;
    font-weight: 700;
}

.legend__item { display: inline-flex; align-items: center; gap: 7px; }
.legend__dot { width: 14px; height: 14px; border: var(--bw) solid var(--black); background: var(--concrete); }
.legend__dot--available { background: var(--green); }
.legend__dot--held { background: var(--yellow); }
.legend__dot--booked { background: var(--blue); }
.legend__dot--sold { background: var(--red); }

.boothgrid { display: flex; flex-wrap: wrap; gap: 8px; }

.booth {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    padding: 9px 12px;
    border-radius: 0;
    border: var(--bw) solid var(--black);
    background: var(--white);
    cursor: pointer;
    color: var(--black);
    box-shadow: var(--push-sm);
}

.booth:hover { background: var(--yellow); }
.booth:active { transform: translate(3px, 3px); box-shadow: none; }
.booth--available { background: var(--green); color: var(--white); }
.booth--held { background: var(--yellow); }
.booth--booked { background: var(--blue); color: var(--white); }
.booth--sold { background: var(--red); color: var(--white); }

/* --------------------------------------------------------------------------
   Errors
   -------------------------------------------------------------------------- */
.error-box {
    background: var(--red);
    border: var(--bw-heavy) solid var(--black);
    box-shadow: var(--push);
    padding: 20px 22px;
    color: var(--white);
}

.error-box h2 { font-size: 16px; margin-bottom: 8px; }
.error-box p { margin: 0 0 12px; font-family: var(--font-mono); font-size: 13px; }
.error-box .btn { background: var(--white); color: var(--black); }

/* --------------------------------------------------------------------------
   Narrow screens
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .shell { grid-template-columns: 1fr; grid-template-areas: "topbar" "content"; }
    .topbar__menu { display: block; }
    .topbar__name { display: none; }

    .nav {
        position: fixed;
        top: var(--topbar-height);
        left: 0;
        width: var(--nav-width);
        z-index: 30;
        transform: translateX(-100%);
        transition: transform .12s linear;
        box-shadow: 8px 0 0 rgba(0, 0, 0, .2);
    }

    .nav.is-open { transform: none; }
    .content { padding: 18px 16px 60px; }
    .bar { grid-template-columns: 96px 1fr auto; gap: 8px; }
}