/* Balloon Button — Frontend */

.balloon-button-wrapper {
	position: fixed;
	z-index: 9999;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 10px;
}

.balloon-button-wrapper.balloon-button--right {
	align-items: flex-end;
}

.balloon-button-wrapper.balloon-button--left {
	align-items: flex-start;
}

/* ─── Main Button ─────────────────────────────── */

.balloon-button-main {
	position: relative;
	width: 62px;
	height: 62px;
	border-radius: 50%;
	border: none;
	cursor: pointer;
	background-color: var(--balloon-main-bg, rgba(0, 132, 255, 1));
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0;
	overflow: hidden;
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.28);
	animation: balloon-bing 4s ease-in-out 2s infinite;
	transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
	            width 0.3s ease,
	            height 0.3s ease,
	            box-shadow 0.3s ease,
	            background-color 0.3s ease;
}

.balloon-button-main:hover,
.balloon-button-main:focus-visible {
	animation-play-state: paused;
	transform: scale(1.1);
	box-shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
	outline: none;
}

.balloon-icon-default {
	width: 34px;
	height: 34px;
	object-fit: contain;
	transition: opacity 0.2s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
	pointer-events: none;
}

.balloon-icon-close {
	display: none;
	color: #fff;
	font-size: 18px;
	font-weight: 700;
	line-height: 1;
	pointer-events: none;
	transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* open state — close button shrinks ให้เล็กกว่า sub buttons */
.balloon-button-wrapper.is-open .balloon-button-main {
	animation: none;
	width: 40px;
	height: 40px;
	transform: rotate(90deg);
	background-color: #e03e3e;
	box-shadow: 0 4px 16px rgba(224, 62, 62, 0.4);
}

.balloon-button-wrapper.is-open .balloon-icon-default {
	display: none;
}

.balloon-button-wrapper.is-open .balloon-icon-close {
	display: block;
}

/* ─── Sub Buttons ─────────────────────────────── */

.balloon-button-sub-buttons {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 10px;
}

.balloon-button-sub {
	width: 62px;
	height: 62px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	text-decoration: none;
	box-shadow: 0 3px 12px rgba(0, 0, 0, 0.22);
	overflow: hidden;

	opacity: 0;
	transform: scale(0.5) translateY(16px);
	pointer-events: none;
	transition: opacity 0.2s ease,
	            transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
	            box-shadow 0.2s ease;
}

.balloon-button-sub img {
	width: 34px;
	height: 34px;
	object-fit: contain;
	pointer-events: none;
}

.balloon-button-sub:hover,
.balloon-button-wrapper.is-open .balloon-button-sub:hover {
	box-shadow: 0 5px 18px rgba(0, 0, 0, 0.3);
	transform: scale(1.1);
}

/* staggered open */
.balloon-button-wrapper.is-open .balloon-button-sub {
	opacity: 1;
	transform: scale(1) translateY(0);
	pointer-events: auto;
}

.balloon-button-wrapper.is-open .balloon-button-sub:nth-child(1) { transition-delay: 0.00s; }
.balloon-button-wrapper.is-open .balloon-button-sub:nth-child(2) { transition-delay: 0.05s; }
.balloon-button-wrapper.is-open .balloon-button-sub:nth-child(3) { transition-delay: 0.10s; }
.balloon-button-wrapper.is-open .balloon-button-sub:nth-child(4) { transition-delay: 0.15s; }
.balloon-button-wrapper.is-open .balloon-button-sub:nth-child(5) { transition-delay: 0.20s; }

/* ─── Bing Animation ──────────────────────────── */

@keyframes balloon-bing {
	0%,  60%, 100% {
		transform: scale(1) rotate(0deg);
		box-shadow: 0 4px 16px rgba(0, 0, 0, 0.28);
	}
	65% {
		transform: scale(1.14) rotate(-10deg);
		box-shadow: 0 7px 22px rgba(0, 0, 0, 0.36);
	}
	70% {
		transform: scale(1.14) rotate(10deg);
	}
	75% {
		transform: scale(1.10) rotate(-6deg);
	}
	80% {
		transform: scale(1.10) rotate(6deg);
	}
	85% {
		transform: scale(1.06) rotate(-3deg);
	}
	90% {
		transform: scale(1.06) rotate(3deg);
	}
	95% {
		transform: scale(1.02) rotate(0deg);
	}
}