tweb-i2p/src/scss/partials/_chat.scss

$chat-max-width: 696px;
$time-background: rgba(0, 0, 0, .35);

#bubble-contextmenu > div {
	padding: 0 84px 0 16px;
}

#topbar {
	width: 100%;
	background-color: #fff;
	user-select: none;
	box-shadow: 0 1px 2px 0 rgba(16, 35, 47, .07);
	min-height: 61px;
	max-height: 61px;
	border-bottom: 1px solid #DADCE0;

	&.is-pinned-shown {
		.pinned-message {
			display: flex;
		}
		
		@include respond-to(handhelds) {
			margin-bottom: 60px;
		}
	}

	@include respond-to(not-handhelds) {
		.sidebar-close-button, .menu-search {
			display: none;
		}
	}

	@include respond-to(handhelds) {
		.chat-mute-button, .chat-search-button {
			display: none;
		}
	}

	/* @include respond-to(handhelds) {
		position: sticky;
		top: 0;
		z-index: 3;
	} */

	.chat-more-button {
		margin-left: 8px;

		.btn-menu {
			top: calc(100% + 7px);
		}
	}
	
	.chat-info {
		flex-grow: 1;
	}
	
	.content {
		flex: 1;
		padding-left: 17px;
		line-height: 1.6;
	}
	
	.person {
		display: flex;
		align-items: center;
		cursor: pointer;
		margin-left: 4px;

		.bottom {
			font-size: 14px;
			line-height: 18px;
			color: #707579;
			
			.online {
				color: $color-blue;
			}
		}
	}

	#im-avatar {
		width: 44px;
		height: 44px;
		line-height: 44px;
	}
}

#chat-input {
	display: flex;
	align-items: center;
	width: 100%;
	max-width: $chat-max-width;
	padding-top: .35rem;
	justify-content: space-between;
	flex: 0 0 auto; /* Forces side columns to stay same width */
	position: relative;

	@include respond-to(handhelds) {
		padding: .35rem .5rem .5rem;
	}

	@include respond-to(not-handhelds) {
		padding-bottom: 21px;
	}

	/* @include respond-to(handhelds) {
		position: sticky;
		bottom: 0;
		z-index: 3;
		background: inherit;
		overflow: hidden;
	} */
	
	#input-message {
		background: none;
		border: none;
		width: 100%;
		font-size: 16px;
		padding: 10px 9px;
		/* height: 100%; */
		max-height: 30rem;
		overflow-y: none;
		resize: none;
		border: none;
		outline: none;
		cursor: text;
	}
	
	[contenteditable=true]:empty:before {
		content: attr(data-placeholder);
		color: #a2acb4;
		display: block; /* For Firefox By Ariel Flesler */
	}

	#btn-record-cancel {
		visibility: hidden;
		opacity: 0;
		transition: width .1s .1s, margin-right .1s .1s, visibility 0s .1s, opacity .1s 0s;
		padding: 0;
		z-index: 3;
	}

	.btn-send-container {
		flex: 0 0 auto;
		position: relative;
		align-self: flex-end;
		z-index: 2;
	}
	
	#btn-send {
		color: #9e9e9e;

		&.tgico-send {
			color: $color-blue;
		}
	}

	#btn-record-cancel, #btn-send {
		font-size: 1.5rem;
		line-height: 1.5rem;
		background-color: #fff;
	}

	.record-time {
		height: 44px;
		line-height: 44px;
		display: none;

		&:after {
			content: " ";
			width: 10px;
			height: 10px;
			background-color: #e53935;
			border-radius: 50%;
			margin: 0 .5rem;
			display: inline-block;
			animation: recordBlink 1.25s infinite;
		}
	}

	.record-ripple {
		border-radius: 50%;
		background-color: rgba(0, 0, 0, .2);
		width: 150px;
		height: 150px;
		transform: scale(0);
		position: absolute;
		top: -48px;
		left: -48px;
		transition: transform .03s, visibility .1s;
		visibility: hidden;
	}
	
	&.is-recording {
		#btn-record-cancel {
			opacity: 1;
			visibility: visible;
			margin-right: .5rem;
			transition: width .1s, margin-right .1s, visibility 0s .1s, opacity .1s .1s;
		}

		#attach-file {
			display: none;
		}

		.record-time {
			display: block;
		}

		.record-ripple {
			transition: transform .03s, visibility 0s;
			visibility: visible;
		}
	}

	&:not(.is-recording) {
		#btn-record-cancel {
			margin-right: 0;
			width: 0px;
		}
	}
}

@keyframes recordBlink {
	0% {
		opacity: 1;
	}

	50% {
		opacity: .2;
	}

	100% {
		opacity: 1;
	}
}

#im-title {
	cursor: pointer;

	span.emoji {
		vertical-align: inherit;
	}
}

.chat-container {
	display: flex;
	// padding: 200px;
	width: 100%;
	align-items: center;
	//overflow: hidden;
	flex-direction: column;
	position: relative;
	background-image: url('assets/img/camomile_blurred.jpg');
	//background: url('assets/img/camomile_blurred.jpg') no-repeat center center;
	background-size: cover;
	background-position: center center;
	//background-attachment: inherit;

	/* @include respond-to(handhelds) {
		//background: url("assets/img/camomile_blurred.jpg") no-repeat center center fixed;
		background-attachment: fixed;
	} */
	
	/* .chat-background, #chat-closed {
		position: absolute;
		/* left: 0;
		top: 0;
		width: 100%;
		height: 100%; *
		left: -1%;
		top: -1%;
		width: 102%;
		height: 102%;
		background-image: url('../../../public/assets/img/camomile.jpg');
		background-size: cover;
		background-position: center center;
		display: none;
	} */
	
	#chat-background-canvas {
		display: none;
	}
	
	/* #chat-closed {
		z-index: 3;
	}
	
	> *:not(.chat-background) {
		z-index: 2;
	} */
	
	.input-message {
		display: flex;
		align-items: center;
		flex-direction: column;
		width: calc(100% - 3.75rem);
		justify-content: center;
		background-color: #fff;
		border-radius: 12px;
		border-bottom-right-radius: 0;
		box-shadow: 0 1px 2px 0 rgba(16, 35, 47, 0.07);
		margin-right: 9px;
		padding: 4.5px .5rem;
		/* padding: 3px .5rem 6px .5rem; */
		min-height: 54px;
		max-height: 30rem;
		caret-color: $button-primary-background;
		flex: 1;
		position: relative;
		z-index: 3;
		
		&:after {
			position: absolute;
			bottom: -1px;
			width: 11px;
			height: 20px;
			background-repeat: no-repeat repeat;
			content: '';
			background-size: 11px 20px;
			right: -9px;
			background-image: url('assets/img/msg-tail-left.svg');
			transform: scaleX(-1);
		}

		#attach-file {
			&.menu-open {
				color: $color-blue;
				background-color: transparent;
			}

			.btn-menu {
				padding: 8px 0;
				right: -8px;
    		bottom: calc(100% + 16px);
				
				> div {
					padding: 0 38px 0 16px;
				}
			}
		}
		
		> div {
			display: flex;
			justify-content: space-between;
			align-items: center;
			width: 100%;
			//min-height: inherit;
		}
		
		.reply-wrapper {
			justify-content: flex-start;
			overflow: hidden;
			transition: .2s all;
			height: 0px;
			
			&.active {
				height: 39px;
			}
			
			.reply {
				width: 100%;
				margin-left: .5rem;
				min-height: 35px;
			}
		}
		
		.new-message-wrapper {
			//padding: 4.5px 0;
			//padding-bottom: 4.5px;
			align-items: flex-end;
			
			.btn-icon:before {
				vertical-align: bottom;
			}
		}
		
		.input-message-container {
			width: 1%;
			max-height: inherit;
			flex: 1 1 auto;
			position: relative;
			overflow: hidden;

			> .scrollable {
				position: relative;
			}
		}
		
		.btn-icon {
			display: block;
			transition: .2s color;
			flex: 0 0 auto;

			font-size: 24px;
			line-height: 24px;
			padding: 10px 7px 9px 7.5px;
			color: #8d969c;
			
			&.active {
				color: $color-blue;
			}
		}
		
		.emoji {
			font-size: 24px;
			height: 24px;
			width: 24px;
		}
	}

	@include respond-to(handhelds) {
		.pinned-message {
			position: absolute !important;
			top: 100%;
			width: 100% !important;
			background: #fff;
			left: 0;
			border-top: 1px solid #ccc;
			max-height: 100% !important;
			height: 100%;
			padding: 1rem;
		}
	}

	.pinned-message, .reply {
		cursor: pointer;
		display: flex;
		flex-direction: row;
		align-items: center;
		overflow: hidden;
		box-sizing: border-box;
		width: 187px;
		margin-right: 1rem;
		max-height: 35px;
		position: relative;
		/* padding: .25rem; */

		&.is-reply-media {
			.pinned-message-content, .reply-content {
				padding-left: 40px;
			}
		}
		
		html.no-touch &:hover {
			background-color: rgba(112, 117, 121, 0.08);
		}
		
		&-border {
			height: 32px;
			border-radius: 1px;
			min-width: 2px;
			background: $color-blue;
		}
		
		&-content {
			margin-left: 8px;
			flex-grow: 1;
			flex-shrink: 1;
			overflow: hidden;
			pointer-events: none;
			position: relative;
			height: 32px;
			display: flex;
			flex-direction: column;
			justify-content: space-between;
		}
		
		&-title {
			color: $color-blue;
		}
		
		&-title, &-subtitle {
			font-size: 14px;
			//line-height: 18px;
			//line-height: 1;
			line-height: 15px;
			overflow: hidden;
			white-space: nowrap;
			text-overflow: ellipsis;
		}
		
		&-subtitle {
			white-space: nowrap;
			color: #111;
		}

		&-media {
			height: 32px;
			width: 32px;
			border-radius: 8px;
			overflow: hidden;
			position: absolute;
			left: 0;
			top: 0;
			background-repeat: no-repeat;
			background-size: cover;
			background-position: center center;
		}

		i {
			font-style: normal;
			color: $color-blue;
		}

		img.emoji {
			height: 16px;
			width: 16px;
			vertical-align: top;
		}

		span.emoji {
			font-size: 16px;
			vertical-align: unset;
		}
	}

	.pinned-message {
		display: none;
	}
	
	/* #chat-closed {
		position: absolute;
		left: 0;
		top: 0;
		width: 100%;
		height: 100%;
		background-color: inherit;
		z-index: 3;
		display: flex;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		
		
		.tgico-chatsplaceholder {
			font-size: 10rem;
			color: #ABB0B3;
		}
		
		h3 {
			font-size: 2rem;
			color: #707579;
			text-align: center;
		}
		
		.buttons {
			display: flex;
			justify-content: center;
			align-items: center;
			margin-top: 1rem;
			
			button {
				margin: 0 2.5rem;
				width: 4rem;
				height: 4rem;
				background: #fff;
				border: none;
				position: relative;
				font-size: 2rem;
				color: #707579;
				cursor: pointer;
				
				box-shadow: 0 1px 2px 0 rgba(16, 35, 47, 0.07);
				
				&:hover {
					background: #4EA4F6;
					color: #fff;
					
					span {
						color: #4EA4F6;
					}
				}
				
				span {
					position: absolute;
					top: 100%;
					left: 50%;
					width: 100%;
					padding-top: 1rem;
					transform: translateX(-50%);
					font-size: .9rem;
					font-family: "Roboto";
				}
			}
		}
	} */
}

#bubbles {
	/* overflow-y: scroll;
	scrollbar-width: none;
	-ms-overflow-style: none; */
	width: 100%;
	height: 100%;
	max-height: 100%;
	flex: 1 1 auto; /* Lets middle column shrink/grow to available width */
	overflow: hidden;
	position: relative;
	padding: 0 .5rem;

	> .scrollable {
		padding: 0 .75rem;

		height: auto;
		/* position: absolute;
		bottom: 0;
		left: 0; */
		//position: relative; // неизвестно зачем это было

		//display: flex; // for end
		//flex-direction: unset;
		display: block;


		/* display: flex;
		flex-direction: column;
		justify-content: flex-end; */
	}
	
	&:not(.scrolled-down) {
		-webkit-mask-image: -webkit-linear-gradient(bottom, transparent, #000 20px);
		mask-image: linear-gradient(0deg, transparent 0, #000 20px);

		#bubbles-go-down {
			opacity: 1;
		}
	}
	
	.preloader {
		width: 100%;
		height: 100%;
		
		svg {
			width: 50px;
			height: 50px;
		}

		&-container .preloader-circular {
			background-color: $time-background;
		}
	}
}

#bubbles-inner {
	//max-width: 700px;
	width: 100%;
	display: flex;
	flex-direction: column;
	flex-shrink: 1;
	//padding-top: 9px;
	margin: 0 auto;
	box-sizing: border-box;
	min-height: 100%;
	justify-content: flex-end;
	//flex: 1;

	&.is-chat {
		.is-in .bubble__container {
			margin-left: 3rem;

			@include respond-to(handhelds) {
				max-width: calc(100% - 3rem);
			}
		}
	}

	&.is-channel:not(.is-chat) {
		.bubble__container {
			max-width: 100%;
		}

		&:not(.has-rights) {
			padding-bottom: 55px;
		}
	}

	&:not(.is-channel), &.is-chat {
		.message {
			max-width: 480px;
		}
	}

	&.is-scrolling .is-sticky {
		opacity: 1;
	}
}

#bubbles-go-down {
	position: absolute;
	//opacity: 0;
	background-color: #fff;
	border-radius: 50%;
	width: 3.25rem;
	height: 3.25rem;
	color: $placeholder-color;
	font-size: 30px;
	display: flex;
	align-items: center;
	justify-content: center;
	right: 17.5px;
	bottom: 17.5px;
	cursor: pointer;
	opacity: 0;
	transition: .2s opacity;
	user-select: none;
	z-index: 2;

	&:before {
		margin-left: .75px;
	}

	@include respond-to(handhelds) {
		right: .5rem;
	}
}

.popup {
	&.popup-delete-message {
		.popup-header {
			margin-bottom: 1rem;
		}
	}
	
	.popup-buttons {
		display: flex;
		flex-direction: column;
		justify-content: flex-end;
		align-items: flex-end;
		
		button {
			background: none;
			outline: none;
			border: none;
			padding: .5rem;
			text-transform: uppercase;
			transition: .2s;
			border-radius: $border-radius;
			cursor: pointer;
			color: $color-blue;
			
			html.no-touch &:hover {
				background-color: rgba(112, 117, 121, 0.08);
			}
			
			& + button {
				margin-top: .5rem;
			}
		}
	}
}