/* In-session orientation: clear countdown, quiet secondary menu description. */
#overlay-layer {
    --countdown-size: clamp(4rem, 14vw, 7rem);
    --session-menu-bottom: max(34px, calc(env(safe-area-inset-bottom) + 22px));
    --session-menu-occupied: 240px;
}

.session-control-island { bottom: var(--session-menu-bottom); }
body:has(#landscape-warning.visible) #overlay-layer {
    --session-menu-bottom: max(112px, calc(env(safe-area-inset-bottom) + 102px));
}
body:has(#landscape-warning.visible) .session-control-island {
    bottom: var(--session-menu-bottom);
}

.island-tray { max-height: calc(100svh - var(--session-menu-bottom) - 64px); }
.session-control-island.is-countdown.is-open .island-tray {
    /* Reserve a full-size digit and breathing room on short screens; menu scrolls. */
    max-height: calc(100svh - var(--session-menu-bottom) - var(--countdown-size) - 76px);
}
.breathe-text.countdown {
    font-size: var(--countdown-size);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.session-control-island.is-open + .breathe-text.countdown,
.session-control-island.is-open + .breathe-text.countdown.show {
    position: absolute;
    left: 50%;
    top: calc((100% - var(--session-menu-occupied)) / 2);
    transform: translate(-50%, -50%);
}

.session-menu-hint {
    position: absolute;
    top: 50%;
    left: calc(100% + 10px);
    width: max-content;
    max-width: calc(50vw - 44px);
    color: #94a3b8;
    font-size: 12px;
    font-weight: 400;
    line-height: 16px;
    letter-spacing: 0.01em;
    text-align: left;
    white-space: normal;
    pointer-events: none;
    user-select: none;
    opacity: 0;
    visibility: hidden;
    transform: translate(2px, -50%);
    transition: opacity 220ms ease, transform 220ms ease, visibility 0s linear 220ms;
}

/* The paused phase is the entire inhale/exhale interval, including text fades. */
#overlay-layer .session-control-island.is-paused {
    opacity: 0;
}
#overlay-layer .session-control-island.is-paused,
#overlay-layer .session-control-island.is-paused * {
    visibility: hidden;
    pointer-events: none;
}

#overlay-layer .session-control-island.is-checkin:not(.is-open):not(.is-dimmed) {
    opacity: 1;
    filter: none;
}
.session-control-island.is-checkin:not(.is-open):not(.is-dimmed) .session-menu-hint {
    opacity: .26;
    visibility: visible;
    transform: translate(0, -50%);
    transition-delay: 0s;
}
.session-control-island.is-checkin:not(.is-open):not(.is-dimmed) .island-menu-btn:hover + .session-menu-hint {
    opacity: .55;
}
.session-control-island.is-checkin:not(.is-open):not(.is-dimmed) .island-menu-btn:focus-visible + .session-menu-hint {
    opacity: 1;
}
.session-control-island.is-checkin:not(.is-open) .island-menu-btn {
    opacity: .65;
    transition: opacity 220ms ease, border-color 180ms ease, background 180ms ease;
}
.session-control-island.is-checkin .island-menu-btn:is(:hover, :focus-visible) {
    opacity: 1;
}

@media (max-height: 640px) {
    /* Keep the pause card above the button and its caption in compact viewports. */
    #overlay-layer.pause-active {
        box-sizing: border-box;
        padding-bottom: calc(var(--session-menu-bottom) + 60px);
    }
    #overlay-layer.pause-active .dialog-box {
        max-height: calc(100svh - var(--session-menu-bottom) - 76px);
        overflow-y: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .session-menu-hint, .island-menu-btn { transition: none !important; }
}

@media (max-height: 640px) and (max-width: 599px) {
    /* Leave room for the existing fullscreen control above the portrait pause card. */
    #overlay-layer.pause-active { padding-bottom: calc(var(--session-menu-bottom) + 32px); }
}