/* Flappy Bird — project-specific styles */

/* Centered game stage, mirrors the in-page layout used by other canvas projects. */
#flappy-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

/* The canvas's parent box: defines the area the game sizes itself into. */
#flappy-frame {
    position: relative;
    display: inline-flex;          /* shrink-to-fit the canvas, no side gutters */
    align-items: center;
    justify-content: center;
    background: #4ec0ca;            /* original sky colour, shown before load */
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
    line-height: 0;                /* remove inline-canvas baseline gap */
}

#flappy-canvas {
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    touch-action: none;
    cursor: pointer;
}

/* When the frame goes fullscreen, fill the screen and keep the game centered. */
#flappy-frame:fullscreen {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
    background: #000;
}

/* CSS-only fullscreen fallback for browsers without an element Fullscreen API
   (iOS Safari never implements requestFullscreen on non-video elements). */
#flappy-frame.flappy-fake-fullscreen {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    max-width: none;
    border-radius: 0;
    background: #000;
    z-index: 1000;
}

.flappy-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

#flappy-fullscreen {
    cursor: pointer;
}

#flappy-open-app {
    font-size: 0.85rem;
    text-decoration: none;
    padding: 0.2rem 0.6rem;
    border: 1px solid currentColor;
    border-radius: 4px;
    opacity: 0.8;
    white-space: nowrap;
}

#flappy-open-app:hover {
    opacity: 1;
}

.flappy-hint {
    font-size: 0.8rem;
    opacity: 0.6;
    margin: 0;
}

/* ---- Settings (gear button + Options panel), styled to match the game's
   chunky retro look: cream panel, dark-brown outlines, green switches. ---- */
.flappy-gear {
    position: absolute;
    top: calc(10px + env(safe-area-inset-top, 0px));
    right: calc(10px + env(safe-area-inset-right, 0px));
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: #fff;
    background: #4ec0ca;             /* sky blue */
    border: 3px solid #543847;       /* dark brown outline */
    border-radius: 8px;
    box-shadow: 0 3px 0 #543847, 0 4px 6px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    z-index: 20;
    -webkit-tap-highlight-color: transparent;
}
.flappy-gear svg {
    width: 22px;
    height: 22px;
    display: block;
}
.flappy-gear:hover { filter: brightness(1.08); }
.flappy-gear:active {
    transform: translateY(2px);
    box-shadow: 0 1px 0 #543847, 0 2px 4px rgba(0, 0, 0, 0.3);
}

.flappy-settings-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    /* Transparent (no dim) — still covers the screen so it captures taps and the
       game doesn't flap behind it, but it won't darken the game. */
    background: transparent;
    z-index: 30;
    -webkit-tap-highlight-color: transparent;
}
.flappy-settings-overlay.open { display: flex; }

.flappy-settings-panel {
    width: min(82%, 280px);
    box-sizing: border-box;
    padding: 18px 16px 16px;
    background: #ded895;             /* cream, like the in-game panels */
    border: 4px solid #543847;
    border-radius: 12px;
    box-shadow: 0 6px 0 #543847, 0 12px 22px rgba(0, 0, 0, 0.45);
    color: #543847;
    font-family: "Trebuchet MS", Verdana, Geneva, sans-serif;
    text-align: center;
}
.flappy-settings-title {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-shadow: 2px 2px 0 #fff;
}
.flappy-setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 2px;
    cursor: pointer;
    user-select: none;
}
.flappy-setting-label {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.5);
}
.flappy-toggle {                     /* hide the real checkbox; the span is the UI */
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.flappy-switch {
    position: relative;
    flex: none;
    width: 52px;
    height: 28px;
    background: #b9ab74;             /* off */
    border: 3px solid #543847;
    border-radius: 999px;
    transition: background 0.15s ease;
}
.flappy-switch::after {
    content: "";
    position: absolute;
    top: 0;
    left: 1px;
    width: 22px;
    height: 22px;
    box-sizing: border-box;
    background: #fff;
    border: 2px solid #543847;
    border-radius: 50%;
    transition: transform 0.15s ease;
}
.flappy-toggle:checked ~ .flappy-switch { background: #73bf2e; }  /* on = pipe green */
.flappy-toggle:checked ~ .flappy-switch::after { transform: translateX(24px); }
.flappy-toggle:focus-visible ~ .flappy-switch {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.flappy-settings-close {
    display: block;
    width: fit-content;
    margin: 14px auto 0;
    padding: 8px 24px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #fff;
    background: #f3920a;             /* orange, like the in-game buttons */
    border: 3px solid #543847;
    border-radius: 8px;
    box-shadow: 0 3px 0 #543847;
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.25);
    cursor: pointer;
}
.flappy-settings-close:active {
    transform: translateY(2px);
    box-shadow: 0 1px 0 #543847;
}

.flappy-resume { background: #73bf2e; }  /* "go" green for resume */

.flappy-version {
    margin-top: 12px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #543847;
    opacity: 0.5;
}