:root {
	--skytrail-navy: #07142e;
	--skytrail-blue: #1686b4;
	--skytrail-cyan: #7cecff;
	--skytrail-gold: #ffe573;
	--skytrail-orange: #ed6c31;
	--skytrail-green: #3b9c74;
}

.install-card,
.install-guide,
.install-reopen,
.install-toast {
	box-sizing: border-box;
	font-family: "Trebuchet MS", "Avenir Next", Arial, sans-serif;
}

.install-card {
	position: fixed;
	left: max(18px, env(safe-area-inset-left));
	bottom: max(18px, env(safe-area-inset-bottom));
	z-index: 40;
	width: min(510px, calc(100vw - 36px));
	padding: 22px;
	border: 3px solid rgba(124, 236, 255, 0.8);
	border-radius: 24px;
	color: #fff;
	background:
		radial-gradient(circle at 90% 0%, rgba(124, 236, 255, 0.25), transparent 35%),
		linear-gradient(145deg, rgba(15, 45, 93, 0.98), rgba(7, 20, 46, 0.98));
	box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
	touch-action: manipulation;
}

.install-card[hidden],
.install-guide[hidden],
.install-reopen[hidden],
.install-toast[hidden] {
	display: none;
}

.install-card__eyebrow {
	margin: 0 44px 6px 0;
	color: var(--skytrail-gold);
	font-size: 13px;
	font-weight: 900;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.install-card h1 {
	margin: 0 44px 8px 0;
	font-size: clamp(26px, 4vw, 38px);
	line-height: 1;
}

.install-card__copy {
	margin: 0 0 14px;
	color: #e9f7ff;
	font-size: 17px;
	line-height: 1.38;
}

.install-card__close,
.install-guide__close {
	position: absolute;
	top: 12px;
	right: 12px;
	width: 42px;
	height: 42px;
	border: 0;
	border-radius: 50%;
	color: #fff;
	background: rgba(255, 255, 255, 0.13);
	font-size: 26px;
	font-weight: 900;
	cursor: pointer;
	touch-action: manipulation;
}

.install-status {
	display: flex;
	align-items: center;
	gap: 9px;
	min-height: 28px;
	margin-bottom: 15px;
	color: #cdefff;
	font-size: 14px;
	font-weight: 800;
}

.install-status::before {
	content: "";
	width: 12px;
	height: 12px;
	flex: 0 0 12px;
	border: 3px solid rgba(255, 255, 255, 0.3);
	border-top-color: var(--skytrail-cyan);
	border-radius: 50%;
	animation: install-spin 1s linear infinite;
}

.install-status.is-ready {
	color: #a8f1c7;
}

.install-status.is-ready::before {
	content: "\2713";
	display: grid;
	place-items: center;
	width: 20px;
	height: 20px;
	border: 0;
	color: #07142e;
	background: #83e5b0;
	font-size: 14px;
	animation: none;
}

.install-actions {
	display: grid;
	grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
	gap: 10px;
}

.install-action {
	min-height: 58px;
	padding: 10px 16px;
	border: 0;
	border-radius: 16px;
	color: #fff;
	font-size: 16px;
	font-weight: 900;
	letter-spacing: 0.02em;
	cursor: pointer;
	touch-action: manipulation;
}

.install-action--primary {
	background: var(--skytrail-orange);
	box-shadow: inset 0 -4px rgba(89, 30, 11, 0.22);
}

.install-action--secondary {
	background: #315a82;
}

.install-action:focus-visible,
.install-card__close:focus-visible,
.install-guide__close:focus-visible,
.install-reopen:focus-visible {
	outline: 4px solid var(--skytrail-gold);
	outline-offset: 3px;
}

.install-reopen {
	position: fixed;
	right: max(14px, env(safe-area-inset-right));
	bottom: max(14px, env(safe-area-inset-bottom));
	z-index: 35;
	min-height: 52px;
	padding: 10px 18px;
	border: 2px solid var(--skytrail-cyan);
	border-radius: 18px;
	color: #fff;
	background: rgba(10, 37, 79, 0.94);
	box-shadow: 0 9px 30px rgba(0, 0, 0, 0.45);
	font-size: 14px;
	font-weight: 900;
	cursor: pointer;
	touch-action: manipulation;
}

.install-guide {
	position: fixed;
	inset: 0;
	z-index: 50;
	display: grid;
	place-items: center;
	padding:
		max(20px, env(safe-area-inset-top))
		max(20px, env(safe-area-inset-right))
		max(20px, env(safe-area-inset-bottom))
		max(20px, env(safe-area-inset-left));
	color: #fff;
	background: rgba(3, 9, 24, 0.84);
	backdrop-filter: blur(12px);
	touch-action: manipulation;
}

.install-guide__sheet {
	position: relative;
	width: min(680px, 100%);
	max-height: 100%;
	overflow: auto;
	padding: 28px;
	border: 3px solid rgba(124, 236, 255, 0.72);
	border-radius: 26px;
	background: linear-gradient(150deg, #173d73, #091936);
	box-shadow: 0 24px 80px rgba(0, 0, 0, 0.66);
}

.install-guide h2 {
	margin: 0 46px 8px 0;
	color: var(--skytrail-gold);
	font-size: clamp(26px, 5vw, 40px);
}

.install-guide__intro {
	margin: 0 0 18px;
	color: #e8f5ff;
	font-size: 17px;
	line-height: 1.4;
}

.install-steps {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 12px;
	margin: 0 0 20px;
	padding: 0;
	list-style: none;
}

.install-step {
	min-height: 132px;
	padding: 16px;
	border-radius: 18px;
	color: #eaf8ff;
	background: rgba(255, 255, 255, 0.09);
	font-size: 15px;
	line-height: 1.35;
}

.install-step strong {
	display: block;
	margin: 9px 0 5px;
	color: #fff;
	font-size: 17px;
}

.install-step__number {
	display: grid;
	place-items: center;
	width: 34px;
	height: 34px;
	border-radius: 50%;
	color: #091936;
	background: var(--skytrail-gold);
	font-size: 18px;
	font-weight: 900;
}

.install-guide__done {
	display: block;
	width: min(330px, 100%);
	margin: 0 auto;
	background: var(--skytrail-green);
}

.install-toast {
	position: fixed;
	left: 50%;
	bottom: max(18px, env(safe-area-inset-bottom));
	z-index: 60;
	transform: translateX(-50%);
	max-width: calc(100vw - 36px);
	padding: 14px 20px;
	border: 2px solid #83e5b0;
	border-radius: 16px;
	color: #eafff3;
	background: rgba(8, 48, 43, 0.96);
	font-size: 16px;
	font-weight: 900;
	text-align: center;
	box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

@keyframes install-spin {
	to { transform: rotate(360deg); }
}

@media (max-width: 760px), (max-height: 560px) {
	.install-card {
		width: min(440px, calc(100vw - 28px));
		padding: 17px;
	}

	.install-card h1 {
		font-size: 26px;
	}

	.install-card__copy {
		font-size: 15px;
	}

	.install-action {
		min-height: 52px;
		font-size: 14px;
	}

	.install-guide__sheet {
		padding: 21px;
	}

	.install-steps {
		grid-template-columns: 1fr;
	}

	.install-step {
		min-height: 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	.install-status::before {
		animation: none;
	}
}