/* ===========================================================================
   StoreIT mobile.

   Mobile-first and sized in relative units throughout, because this runs on
   anything from a 320px-wide phone to a 13" tablet, and on notched/rounded
   screens. Three things do the heavy lifting:

     - safe-area insets, so nothing hides under a notch or a home indicator
     - dvh rather than vh, so the layout does not jump when mobile browser
       chrome slides away
     - a single fluid grid that reflows to columns on wide screens instead of
       a separate tablet layout

   Colours mirror the desktop app's Theme.cs so the two read as one product.
   =========================================================================== */

:root {
    --page: #f4f6f9;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #161d27;
    --text-muted: #64707d;

    --accent: #2563eb;
    --accent-soft: #e8f0fe;
    --danger: #dc2626;
    --danger-soft: #fee9e9;
    --success: #16a34a;
    --success-soft: #e6f7ec;
    --warning: #d97706;
    --warning-soft: #fef3e0;
    --neutral: #64707d;
    --neutral-soft: #eef1f5;

    --radius: 12px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);

    /* Big enough to hit with a gloved thumb in a warehouse. */
    --tap: 48px;

    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --page: #11161d;
        --surface: #1a212b;
        --border: #2b3542;
        --text: #e8edf3;
        --text-muted: #97a3b2;
        --accent-soft: #17233a;
        --danger-soft: #2e1a1c;
        --success-soft: #14261c;
        --warning-soft: #2c2113;
        --neutral-soft: #222b36;
        --shadow: 0 1px 3px rgba(0, 0, 0, .4);
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--page);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
    font-size: 16px;            /* never below 16px: iOS zooms the page otherwise */
    -webkit-text-size-adjust: 100%;
    overscroll-behavior-y: none;
}

/* --- app shell ---------------------------------------------------------- */

.app {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: calc(var(--safe-top) + .7rem) calc(var(--safe-right) + 1rem) .7rem calc(var(--safe-left) + 1rem);
    background: #181f2a;
    color: #fff;
    display: flex;
    align-items: center;
    gap: .7rem;
}

.app-header .brand { font-weight: 600; font-size: 1.05rem; letter-spacing: .2px; }
.app-header .spacer { flex: 1; }

/* Deliberately loud. Being in ADMIN without noticing is how a part type gets
   deleted by accident. */
.app-header .admin-flag {
    font-size: .64rem;
    font-weight: 800;
    letter-spacing: .8px;
    padding: .2rem .45rem;
    border-radius: 4px;
    background: var(--danger);
    color: #fff;
}
.app-header .conn { font-size: .72rem; opacity: .75; }

.app-main {
    flex: 1;
    padding: 1rem calc(var(--safe-right) + 1rem) 1.2rem calc(var(--safe-left) + 1rem);
    /* clear the fixed tab bar */
    padding-bottom: calc(var(--tap) + var(--safe-bottom) + 2.2rem);
    max-width: 1100px;
    width: 100%;
    margin-inline: auto;
}

/* --- bottom tab bar ----------------------------------------------------- */

.tabs {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 30;
    display: flex;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: .25rem calc(var(--safe-right)) calc(var(--safe-bottom)) calc(var(--safe-left));
}

.tabs a {
    flex: 1;
    min-height: var(--tap);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .15rem;
    padding: .3rem .1rem;
    text-decoration: none;
    color: var(--text-muted);
    font-size: .68rem;
    line-height: 1.1;
    text-align: center;
}

.tabs a.active { color: var(--accent); font-weight: 600; }
.tabs a svg { width: 21px; height: 21px; }

/* On a wide screen the tab bar becomes a normal top nav row. */
@media (min-width: 820px) {
    .tabs {
        position: sticky;
        top: 0;
        border-top: none;
        border-bottom: 1px solid var(--border);
        max-width: 1100px;
        margin-inline: auto;
    }
    .tabs a { flex-direction: row; gap: .45rem; font-size: .85rem; }
    .app-main { padding-bottom: 2rem; }
}

/* --- cards, text -------------------------------------------------------- */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem;
    margin-bottom: .9rem;
}

.card h2 { margin: 0 0 .6rem; font-size: 1rem; }
.page-title { margin: .2rem 0 .9rem; font-size: 1.3rem; font-weight: 650; }
.muted { color: var(--text-muted); font-size: .85rem; }
.mono { font-variant-numeric: tabular-nums; }

/* --- the mode banner, mirroring the desktop's ModeStrip ----------------- */

.mode-strip {
    border-radius: var(--radius);
    padding: .8rem 1rem .8rem 1.1rem;
    margin-bottom: .9rem;
    border-left: 7px solid var(--neutral);
    background: var(--neutral-soft);
}

.mode-strip .caption {
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .3px;
    color: var(--neutral);
}

.mode-strip .detail { font-size: .8rem; color: var(--text-muted); margin-top: .15rem; }

.mode-store  { border-left-color: var(--accent);  background: var(--accent-soft); }
.mode-store .caption { color: var(--accent); }
.mode-remove { border-left-color: var(--warning); background: var(--warning-soft); }
.mode-remove .caption { color: var(--warning); }
.mode-switch { border-left-color: var(--success); background: var(--success-soft); }
.mode-switch .caption { color: var(--success); }

/* --- buttons ------------------------------------------------------------ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    min-height: var(--tap);
    padding: .6rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-size: .95rem;
    font-weight: 550;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; cursor: default; transform: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-danger  { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost   { background: transparent; border-color: transparent; color: var(--accent); }
.btn-block   { display: flex; width: 100%; }
.btn-lg      { min-height: 56px; font-size: 1.02rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.btn-row > .btn { flex: 1 1 auto; }

/* --- status banner ------------------------------------------------------ */

.status {
    border-radius: 10px;
    padding: .65rem .8rem;
    font-size: .88rem;
    font-weight: 550;
    margin-bottom: .8rem;
    background: var(--neutral-soft);
    color: var(--text-muted);
}

.status-good { background: var(--success-soft); color: var(--success); }
.status-warn { background: var(--warning-soft); color: var(--warning); }
.status-bad  { background: var(--danger-soft);  color: var(--danger); }

/* --- scanner ------------------------------------------------------------ */

.scanner {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 45dvh;
    background: #12161d;
    border-radius: var(--radius);
    overflow: hidden;
    display: grid;
    place-items: center;
}

.scanner video { width: 100%; height: 100%; object-fit: cover; }

.scanner .reticle {
    position: absolute;
    inset: 18% 22%;
    border: 3px solid rgba(255, 255, 255, .85);
    border-radius: 10px;
    box-shadow: 0 0 0 100vmax rgba(0, 0, 0, .28);
    pointer-events: none;
}

.scanner .hint {
    position: absolute;
    color: #cbd5e1;
    font-size: .85rem;
    text-align: center;
    padding: 1rem;
}

/* The camera panel doubles as the start button, so the tap that raises the
   browser's permission popup is the most obvious thing on the screen. */
.scanner-tappable { cursor: pointer; -webkit-tap-highlight-color: transparent; }
.scanner-tappable:active { filter: brightness(1.25); }

.tap-to-scan {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    color: #e2e8f0;
    padding: 1rem;
    text-align: center;
}

.tap-to-scan svg { width: 52px; height: 52px; opacity: .9; }
.tap-to-scan .tap-title { font-size: 1.05rem; font-weight: 650; }
.tap-to-scan .tap-sub { font-size: .82rem; color: #94a3b8; max-width: 22rem; }

/* --- manual entry ------------------------------------------------------- */

.field { display: flex; gap: .5rem; margin-top: .7rem; }

.field input, .field select {
    flex: 1;
    min-width: 0;
    min-height: var(--tap);
    padding: .55rem .7rem;
    font: inherit;
    font-size: 1rem;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
}

select.full { width: 100%; min-height: var(--tap); padding: .55rem .7rem;
    font: inherit; font-size: 1rem; color: var(--text);
    background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }

/* --- scanned list ------------------------------------------------------- */

.rows { display: flex; flex-direction: column; gap: .45rem; }

.row {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .6rem .7rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}

.row .grow { flex: 1; min-width: 0; }
.row .name { font-weight: 550; font-size: .92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .sub { font-size: .76rem; color: var(--text-muted); }

.row .drop {
    min-height: 38px; min-width: 38px;
    border: none; background: transparent;
    color: var(--danger); font-size: 1.3rem; line-height: 1;
    cursor: pointer; border-radius: 8px;
}

.pill {
    font-size: .68rem;
    font-weight: 700;
    padding: .2rem .45rem;
    border-radius: 999px;
    background: var(--neutral-soft);
    color: var(--text-muted);
    white-space: nowrap;
}

.pill-dismantled { background: var(--danger-soft); color: var(--danger); }
.pill-storage    { background: var(--accent-soft); color: var(--accent); }
.pill-constructor{ background: var(--warning-soft); color: var(--warning); }
.pill-installed  { background: var(--success-soft); color: var(--success); }

/* --- stats grid: reflows on its own, no breakpoints needed -------------- */

.stats { display: grid; gap: .6rem; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .8rem;
    /* Tiles are links; keep them looking like tiles, not blue underlined text. */
    display: block;
    text-decoration: none;
    color: inherit;
    min-height: var(--tap);
    -webkit-tap-highlight-color: transparent;
}

a.stat:active { background: var(--neutral-soft); }
.stat .n { font-size: 1.6rem; font-weight: 650; line-height: 1.1; }
.stat .l { font-size: .78rem; color: var(--text-muted); margin-top: .15rem; }

/* --- sign in ------------------------------------------------------------ */

.login-wrap {
    min-height: 70dvh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrap .card { width: 100%; max-width: 380px; }

.login-brand {
    display: flex;
    align-items: center;
    gap: .55rem;
    font-size: 1.25rem;
    font-weight: 650;
    margin-bottom: .5rem;
}

/* --- dialog ------------------------------------------------------------- */

.sheet-backdrop {
    position: fixed; inset: 0; z-index: 50;
    background: rgba(8, 12, 18, .5);
    display: flex; align-items: flex-end; justify-content: center;
}

.sheet {
    width: 100%; max-width: 520px;
    background: var(--surface);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 1.1rem 1.1rem calc(1.1rem + var(--safe-bottom));
    box-shadow: 0 -8px 30px rgba(0, 0, 0, .25);
}

@media (min-width: 640px) {
    .sheet-backdrop { align-items: center; }
    .sheet { border-radius: var(--radius); }
}

.sheet h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.sheet p { margin: 0 0 1rem; font-size: .92rem; color: var(--text-muted); }