/* Touch layout: only used when the app adds .mobile to <body> (phones and tablets). */

body.mobile {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    overflow: hidden;
    overscroll-behavior: none;
    background-color: darkblue;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

.mobile_root {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    /* no pinch or double-tap zoom, scrolling stays available to children that ask for it */
    touch-action: pan-x pan-y;
}

.mobile_display {
    position: relative;
    width: 100%;
    height: 100%;
}

.mobile_controls {
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    /* let touches through to the canvas except on the controls themselves */
    pointer-events: none;
    font-family: sans-serif;
}

.mobile_controls button,
.mobile_panel,
.mobile_popover,
.mobile_views.open {
    pointer-events: auto;
}

/* top bar */

.mobile_top_bar {
    position: absolute;
    top: calc(8px + env(safe-area-inset-top));
    left: calc(8px + env(safe-area-inset-left));
    display: flex;
}

.mobile_bar_button {
    min-width: 44px;
    height: 44px;
    margin-right: 8px;
    padding: 0px 10px;
    font-size: 16px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.85);
    touch-action: manipulation;
}

.mobile_help {
    position: absolute;
    top: calc(8px + env(safe-area-inset-top));
    right: calc(8px + env(safe-area-inset-right));
    margin-right: 0px;
}

.mobile_bar_button.active {
    font-weight: bold;
    background-color: white;
    border-color: lightblue;
}

/* views drawer: slides down from the top, drag the bottom edge to resize */

.mobile_views {
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    padding-top: calc(60px + env(safe-area-inset-top));
    background-color: rgba(0, 0, 60, 0.9);
    border-radius: 0px 0px 12px 12px;
    transform: translateY(-100%);
    visibility: hidden;
    transition: transform 0.25s ease, visibility 0s linear 0.25s;
}

.mobile_views.open {
    transform: translateY(0%);
    visibility: visible;
    transition: transform 0.25s ease, visibility 0s;
}

.mobile_views_body {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 8px;
    box-sizing: border-box;
    overflow: hidden;
}

.mobile_views_body > * {
    margin: 0px 6px;
}

.mobile_views_column {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mobile_views_forces {
    margin: 8px 0px 0px 0px;
}

.mobile_views_handle {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    touch-action: none;
}

.mobile_views_grip {
    width: 48px;
    height: 5px;
    border-radius: 3px;
    background-color: rgba(255, 255, 255, 0.7);
}

/* the top view's arrow toggles, over the right-hand side of the drawer */
.mobile_popover {
    position: absolute;
    top: 8px;
    right: 8px;
    bottom: 8px;
    width: min(290px, 60%);
    margin: 0px;
    padding: 6px 10px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.95);
}

/* sideways: stop short of the sail buttons, so it covers the stern view (no toggles) and not the top view */
@media (orientation: landscape) {
    .mobile_popover {
        right: calc(140px + env(safe-area-inset-right));
    }
}

/* forces panel */

.mobile_panel {
    position: absolute;
    top: calc(60px + env(safe-area-inset-top));
    left: calc(8px + env(safe-area-inset-left));
    padding: 6px 10px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.92);
}

/* sideways: a column down the left edge, so the boat in the middle stays visible */
@media (orientation: landscape) {
    .mobile_panel {
        width: 290px;
        max-height: calc(100% - 60px - 100px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
    }
}

/* upright: a strip across the top, above the boat */
@media (orientation: portrait) {
    .mobile_panel {
        right: calc(8px + env(safe-area-inset-right));
        max-height: calc(40% - 60px);
    }
}

.arrowRowLarge {
    padding: 4px 0px;
}

.colorDotLarge {
    flex-shrink: 0;
    height: 36px;
    width: 36px;
    margin-right: 10px;
    border-radius: 18px;
    border: 1px solid gray;
}

.arrowButtonLarge {
    flex-grow: 1;
    padding: 10px 8px;
    font-size: 16px;
    touch-action: manipulation;
}

.labelToggle {
    margin-left: 46px;   /* lines up with the force names below */
}

.labelToggle.active {
    font-weight: bold;
    background-color: #ffe98a;
}

.colorRowLarge {
    display: flex;
    flex-wrap: wrap;
    padding: 2px 0px 6px 0px;
}

/* steering and sail buttons */

.mobile_drive {
    position: absolute;
    bottom: calc(12px + env(safe-area-inset-bottom));
    display: flex;
}

.mobile_drive_left {
    left: calc(12px + env(safe-area-inset-left));
}

.mobile_drive_right {
    right: calc(12px + env(safe-area-inset-right));
    flex-direction: column-reverse;
}

.hold_button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 112px;
    height: 84px;
    margin: 4px;
    padding: 0px;
    font-family: sans-serif;
    color: black;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 14px;
    background-color: rgba(255, 255, 255, 0.4);
    touch-action: none;
    -webkit-touch-callout: none;
}

.hold_button.pressed {
    background-color: rgba(255, 255, 255, 0.85);
}

.hold_icon {
    font-size: 26px;
    line-height: 30px;
}

.hold_label {
    font-size: 14px;
}

/* intro popup on small screens */

.intro.intro_mobile {
    box-sizing: border-box;
    width: 90%;
    max-width: 420px;
    max-height: 90%;
    overflow-y: auto;
    padding: 18px;
    font-size: 17px;
    line-height: 1.35;
    border-radius: 8px;
    z-index: 10;
}

.intro_mobile .intro_button {
    margin-top: 4px;
    padding: 8px 14px;
    font-size: 18px;
}

/* short screens (phones held sideways) */
@media (max-height: 450px) {
    .hold_button {
        width: 96px;
        height: 64px;
    }

    .hold_icon {
        font-size: 20px;
        line-height: 22px;
    }
}

/* narrow phones (about 360px wide): keep the button clusters from running into each other */
@media (max-width: 399px) {
    .hold_button {
        width: 96px;
    }

    .mobile_bar_button {
        padding: 0px 7px;
    }
}

@media (max-width: 340px) {
    .hold_button {
        width: 84px;
    }

    .mobile_bar_button {
        padding: 0px 5px;
        font-size: 14px;
    }
}