/* ========================================================
   App-level layout - the lock screen, sign-in flow,
   error states. Till UI lives in till.css.
   ======================================================== */

.app {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ============================================================
   Loading state - shown before any screen resolves
   ============================================================ */
.boot {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    background: var(--bb-canvas);
    color: var(--bb-text-tertiary);
    font-family: var(--bb-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    z-index: 999;
}

/* ============================================================
   Setup screen - shown when the device hasn't been claimed
   ============================================================ */
.setup {
    flex: 1;
    display: grid;
    place-items: center;
    background: var(--bb-walnut);
    color: var(--bb-text-on-chrome);
    padding: 40px;
}
.setup__card {
    background: var(--bb-walnut-soft);
    border: 1px solid rgba(184,149,106,0.2);
    border-radius: var(--bb-radius);
    padding: 36px 40px;
    max-width: 520px;
    width: 100%;
}
.setup__eyebrow {
    font-family: var(--bb-mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--bb-jute);
    text-transform: uppercase;
    margin-bottom: 14px;
}
.setup__title {
    font-family: var(--bb-display);
    font-size: 28px;
    color: var(--bb-text-on-chrome);
    margin-bottom: 12px;
}
.setup__body {
    color: var(--bb-text-on-chrome-muted);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 24px;
}
.setup__buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.setup__btn {
    height: var(--bb-touch-cta);
    border: 1px solid var(--bb-jute);
    background: transparent;
    color: var(--bb-text-on-chrome);
    border-radius: var(--bb-radius-sm);
    font-family: var(--bb-display);
    font-size: 18px;
    font-weight: 700;
}
.setup__btn:hover { background: rgba(184,149,106,0.1); }
.setup__btn:active { background: rgba(184,149,106,0.2); }

/* ============================================================
   Lock screen - PIN entry. Cashier-facing.
   ============================================================ */
.lock {
    flex: 1;
    background: var(--bb-canvas);
    display: grid;
    grid-template-rows: auto 1fr auto;
    overflow: hidden;
}
.lock__header {
    padding: 28px 32px 20px;
    text-align: center;
}
.lock__eyebrow {
    font-family: var(--bb-mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--bb-jute-deep);
    text-transform: uppercase;
    margin-bottom: 6px;
}
.lock__title {
    font-family: var(--bb-display);
    font-size: 24px;
    color: var(--bb-text-primary);
}
.lock__sub {
    color: var(--bb-text-tertiary);
    font-size: 13px;
    margin-top: 4px;
}

.lock__body {
    display: grid;
    place-items: center;
    padding: 0 32px;
}

.lock__pinpad {
    width: 100%;
    max-width: 320px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}
.lock__pin-display {
    grid-column: 1 / -1;
    height: 68px;
    background: var(--bb-card);
    border: 2px solid var(--bb-line);
    border-radius: var(--bb-radius);
    display: grid;
    place-items: center;
    font-family: var(--bb-mono);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.4em;
    color: var(--bb-text-primary);
    margin-bottom: 8px;
}
.lock__pin-display.is-error {
    border-color: var(--bb-critical);
    color: var(--bb-critical);
    animation: shake 0.4s ease;
}
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-10px); }
    75%      { transform: translateX(10px); }
}

.lock__key {
    height: var(--bb-touch-cta);
    border: 1px solid var(--bb-line);
    background: var(--bb-card);
    border-radius: var(--bb-radius);
    font-family: var(--bb-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--bb-text-primary);
    transition: background 0.1s, transform 0.05s;
}
.lock__key:active {
    background: var(--bb-card-alt);
    transform: scale(0.97);
}
.lock__key--action {
    font-family: var(--bb-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--bb-text-tertiary);
    font-weight: 700;
}

.lock__footer {
    padding: 20px 32px 32px;
    text-align: center;
}
.lock__device {
    font-family: var(--bb-mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--bb-text-tertiary);
    text-transform: uppercase;
}
.lock__error {
    margin-top: 12px;
    color: var(--bb-critical);
    font-size: 13px;
    min-height: 20px;
}

/* ============================================================
   Toast notifications
   ============================================================ */
.toast-stack {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: var(--bb-z-toast);
    pointer-events: none;
}
.toast {
    background: var(--bb-walnut);
    color: var(--bb-text-on-chrome);
    padding: 14px 18px;
    border-radius: var(--bb-radius);
    font-size: 14px;
    max-width: 360px;
    border-left: 3px solid var(--bb-jute);
    pointer-events: auto;
    animation: toast-in 0.2s ease;
}
.toast--error  { border-left-color: var(--bb-critical); }
.toast--success { border-left-color: var(--bb-meadow); }
@keyframes toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Error modal - shown on unrecoverable errors, includes request_id
   ============================================================ */
.error-modal {
    position: fixed;
    inset: 0;
    background: rgba(31, 24, 18, 0.85);
    display: grid;
    place-items: center;
    z-index: var(--bb-z-error);
    padding: 40px;
}
.error-modal__card {
    background: var(--bb-card);
    border-top: 4px solid var(--bb-critical);
    border-radius: var(--bb-radius);
    padding: 32px;
    max-width: 480px;
    width: 100%;
}
.error-modal__eyebrow {
    font-family: var(--bb-mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--bb-critical);
    text-transform: uppercase;
    margin-bottom: 8px;
}
.error-modal__title {
    font-family: var(--bb-display);
    font-size: 22px;
    margin-bottom: 12px;
}
.error-modal__message {
    color: var(--bb-text-secondary);
    margin-bottom: 16px;
}
.error-modal__ref {
    font-family: var(--bb-mono);
    font-size: 11px;
    color: var(--bb-text-tertiary);
    background: var(--bb-card-alt);
    padding: 10px 12px;
    border-radius: var(--bb-radius-sm);
    word-break: break-all;
    margin-bottom: 20px;
}
.error-modal__btn {
    width: 100%;
    height: var(--bb-touch-min);
    background: var(--bb-text-primary);
    color: var(--bb-text-on-chrome);
    border: none;
    border-radius: var(--bb-radius-sm);
    font-family: var(--bb-display);
    font-size: 16px;
    font-weight: 700;
}

/* ============================================================
   Connection status pill - small banner when offline
   ============================================================ */
.conn-status {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bb-critical);
    color: white;
    font-family: var(--bb-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 0 0 var(--bb-radius-sm) var(--bb-radius-sm);
    z-index: var(--bb-z-toast);
    transition: transform 0.3s;
}
.conn-status.is-online {
    transform: translateX(-50%) translateY(-100%);
}