:root {
    --bg: #131735;
    --bg-raised: #1e2450;
    --bg-sunken: #0f1330;
    --border: #333a70;
    --text: #eef0fb;
    --text-dim: #9aa3d0;
    --accent: #f6c453;
    --accent-strong: #e59f1d;
    --danger: #ff8a8a;
    --ok: #6ee7a8;
    --radius: 14px;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
    margin: 0;
    padding: 0;
    min-height: 100dvh;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    /* Keep content clear of notches and the home indicator */
    padding: env(safe-area-inset-top) env(safe-area-inset-right)
             env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.boot {
    padding: 3rem 1rem;
    text-align: center;
    color: var(--text-dim);
}

.screen {
    max-width: 34rem;
    margin: 0 auto;
    padding: 1rem;
}

.card {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

/* ---------------------------------------------------------------- login */

.login {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 12vh;
}

.login__logo { align-self: center; border-radius: 20px; }
.login__title { margin: 0; text-align: center; font-size: 1.4rem; }
.login__note { margin: 0; text-align: center; color: var(--text-dim); font-size: .85rem; }

.field { display: flex; flex-direction: column; gap: .35rem; }
.field__label { font-size: .85rem; color: var(--text-dim); }

.field__input {
    padding: .7rem .8rem;
    background: var(--bg-sunken);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font: inherit;
}

.field__input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

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

.btn {
    padding: .7rem 1rem;
    border: 1px solid transparent;
    border-radius: 10px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    /* Comfortably above the 44px minimum touch target */
    min-height: 44px;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn--primary { background: var(--accent); color: #241a02; }

.btn--ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-dim);
    padding: .45rem .7rem;
    min-height: 38px;
    font-weight: 500;
}

.btn--unlock {
    flex: 1;
    background: linear-gradient(180deg, var(--accent), var(--accent-strong));
    color: #241a02;
    font-size: 1.05rem;
}

.btn--unlock[data-busy="1"] { filter: saturate(.4); }

/* ---------------------------------------------------------------- topbar */

.topbar {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .3rem 0 1rem;
}

.topbar__logo { border-radius: 8px; }
.topbar__title { margin: 0; font-size: 1.1rem; flex: 1; }

.pill {
    padding: .2rem .6rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 600;
    background: var(--bg-sunken);
    border: 1px solid var(--border);
    color: var(--text-dim);
    white-space: nowrap;
}

.pill[data-state="online"]  { color: var(--ok);     border-color: #2c6c4c; }
.pill[data-state="offline"] { color: var(--danger); border-color: #7a3535; }
.pill[data-state="open"]    { color: #241a02; background: var(--accent); border-color: var(--accent); }

/* ---------------------------------------------------------------- devices */

.devices { list-style: none; margin: 0; padding: 0; display: grid; gap: .85rem; }

.device__head { display: flex; align-items: center; gap: .6rem; }
.device__name { margin: 0; font-size: 1.05rem; flex: 1; }

.device__meta {
    margin: .35rem 0 .9rem;
    color: var(--text-dim);
    font-size: .8rem;
    font-variant-numeric: tabular-nums;
}

.device__actions { display: flex; gap: .6rem; }

.device__result {
    margin: .7rem 0 0;
    min-height: 1.2em;
    font-size: .85rem;
    color: var(--text-dim);
}

.device__result[data-tone="ok"]    { color: var(--ok); }
.device__result[data-tone="error"] { color: var(--danger); }

.banner, .error, .empty {
    margin: 0 0 1rem;
    padding: .7rem .9rem;
    border-radius: 10px;
    font-size: .9rem;
}

.banner { background: #3a2f12; border: 1px solid #6b5518; color: #f5d78a; }
.error  { background: #3a1a1a; border: 1px solid #7a3535; color: var(--danger); }
.empty  { background: var(--bg-raised); border: 1px solid var(--border); color: var(--text-dim); }

code {
    background: var(--bg-sunken);
    padding: .1rem .35rem;
    border-radius: 5px;
    font-size: .85em;
}

@media (prefers-reduced-motion: no-preference) {
    .btn { transition: filter .15s ease, opacity .15s ease; }
}

.btn--link {
    background: none;
    border: none;
    color: var(--text-dim);
    font-weight: 500;
    text-decoration: underline;
    min-height: 38px;
}

.btn--link:hover { color: var(--text); }