/* ---------- GLOBAL RESET & THEME ---------- */
*,
*::before,
*::after {
	box-sizing: border-box;
}

html,
body {
	height: 100%;
}

:root {
	--bg: #0b1b1e; /* deep river */
	--bg-soft: #0e2529;
	--ink: #e7f6f2; /* pale mist */
	--ink-dim: #bfe4da;
	--accent: #7bd3c2; /* aqua */
	--accent-2: #ffd27d; /* soft dawn gold */
	--muted: #7c9a93;
	--card: #102d31;
	--focus: 2px solid #ffd27d;
	--shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
	--radius: 16px;
	--container: 1200px;
	--speed: 700ms;
	--easing: cubic-bezier(0.2, 0.8, 0.2, 1);
}

@font-face {
	font-family: 'Inter';
	src: url('../fonts/Inter-Variable.ttf') format('truetype');
	font-display: swap;
}
@font-face {
	font-family: 'Lora';
	src: url('../fonts/Lora-Variable.ttf') format('truetype');
	font-display: swap;
}

body {
	margin: 0;
	background: radial-gradient(
			1200px 600px at 70% -10%,
			rgba(123, 211, 194, 0.08),
			transparent 60%
		),
		radial-gradient(
			800px 400px at 10% 20%,
			rgba(255, 210, 125, 0.06),
			transparent 55%
		),
		linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
	color: var(--ink);
	font: 16px/1.6 Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
		sans-serif;
}

/* ---------- TYPOGRAPHY ---------- */
h1,
h2,
h3 {
	font-family: Lora, serif;
	line-height: 1.2;
}
p {
	margin: 0 0 1rem;
	color: var(--ink);
}
.eyebrow {
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--ink-dim);
	font-size: 0.78rem;
}

/* ---------- LAYOUT ---------- */
.container {
	width: min(100% - 2rem, var(--container));
	margin-inline: auto;
}

/* limit all IMG widths */
img {
	display: block;
	max-width: 350px;
	width: 100%;
	height: auto;
	border-radius: 10px;
}

/* ---------- HEADER ---------- */
.qw-header {
	position: fixed;
	width: 100%;
	top: 0;
	z-index: 50;
	background: linear-gradient(
		180deg,
		rgba(11, 27, 30, 0.9),
		rgba(11, 27, 30, 0.75)
	);
	backdrop-filter: blur(6px);
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.qw-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 0.8rem 0;
}
.qw-logo {
	text-decoration: none;
	color: var(--ink);
	font-weight: 700;
	letter-spacing: 0.02em;
}
.qw-nav {
	display: flex;
	gap: 1rem;
}
.qw-nav a {
	color: var(--ink-dim);
	text-decoration: none;
	padding: 0.4rem 0.7rem;
	border-radius: 10px;
	transition: color 0.25s var(--easing), background 0.25s var(--easing);
}
.qw-nav a:hover {
	color: var(--ink);
	background: rgba(255, 255, 255, 0.06);
}
.qw-nav .is-active {
	color: var(--accent);
}

/* burger */
.qw-burger {
	display: none;
	background: transparent;
	border: 0;
	padding: 0.25rem;
	cursor: pointer;
}
.qw-burger span {
	display: block;
	width: 24px;
	height: 2px;
	background: var(--ink);
	margin: 5px 0;
	transition: transform 0.3s, opacity 0.3s;
	border-radius: 2px;
}

.qw-mobile {
	display: none;
	flex-direction: column;
	gap: 0.25rem;
	padding: 0.2rem 1rem 0.8rem;
}
.qw-mobile a {
	color: var(--ink);
	text-decoration: none;
	padding: 0.6rem 0.75rem;
	border-radius: 10px;
}
.qw-mobile a:hover {
	background: rgba(255, 255, 255, 0.06);
}

/* ---------- SECTIONS ---------- */
.sec {
	padding: clamp(2.5rem, 4vw, 5rem) 0;
	position: relative;
}

/* ---------- BUTTONS ---------- */
.btn {
	display: inline-block;
	text-decoration: none;
	padding: 0.8rem 1.1rem;
	border-radius: 100px;
	border: 1px solid transparent;
	transition: transform 0.2s var(--easing), background 0.3s, color 0.3s,
		border-color 0.3s;
}
.btn.primary {
	background: var(--accent);
	color: #0a1618;
	font-weight: 700;
}
.btn.primary:hover {
	transform: translateY(-2px);
}
.btn.ghost {
	border-color: rgba(255, 255, 255, 0.2);
	color: var(--ink);
}
.btn.ghost:hover {
	border-color: var(--accent-2);
	color: var(--accent-2);
}

/* ---------- REVEAL ANIM ---------- */
.reveal {
	opacity: 0;
	transform: translateY(18px) scale(0.98);
	transition: opacity var(--speed) var(--easing),
		transform var(--speed) var(--easing);
}
.reveal.is-in {
	opacity: 1;
	transform: none;
}

/* ---------- FOOTER ---------- */
.qw-footer {
	border-top: 1px solid rgba(255, 255, 255, 0.06);
	background: #0a1719;
	padding: 2.5rem 0;
}
.footer-grid {
	display: grid;
	gap: 1rem;
	grid-template-columns: 1.2fr 0.8fr auto;
	align-items: start;
}
.qw-footer .brand {
	font-weight: 700;
	color: var(--ink);
}
.qw-footer a {
	color: var(--ink-dim);
	text-decoration: none;
}
.qw-footer a:hover {
	color: var(--accent);
}
.backtotop {
	justify-self: end;
	align-self: start;
	background: transparent;
	color: var(--ink);
	border: 1px solid rgba(255, 255, 255, 0.2);
	padding: 0.6rem 0.9rem;
	border-radius: 100px;
	cursor: pointer;
}
.backtotop:hover {
	border-color: var(--accent-2);
	color: var(--accent-2);
}
main {
	margin-top: 30px;
}

/* ---------- MEDIA QUERIES ---------- */
/* tablets and down */
@media (max-width: 992px) {
	.qw-nav {
		display: none;
	}
	.qw-burger {
		display: block;
	}
	.footer-grid {
		grid-template-columns: 1fr;
	}
}
/* phones */
@media (max-width: 600px) {
	.container {
		width: min(100% - 1.25rem, var(--container));
	}
	.btn {
		padding: 0.7rem 0.95rem;
	}
}
/* ---------- THANK YOU PAGE ---------- */
.thankyou-section {
	position: relative;
	min-height: 100dvh; /* центрируем по экрану */
	display: grid;
	place-items: center;
	padding-block: clamp(2rem, 6vw, 5rem);
	background: radial-gradient(
			520px 220px at 85% -5%,
			rgba(123, 211, 194, 0.055),
			transparent 60%
		),
		radial-gradient(
			420px 180px at 18% 45%,
			rgba(255, 210, 125, 0.045),
			transparent 55%
		);
	overflow: hidden;
}

/* мягкое «кольцо-блик» на фоне */
.thankyou-section::before {
	content: '';
	position: absolute;
	inset: -20%;
	background: radial-gradient(
			360px 360px at 50% 40%,
			rgba(123, 211, 194, 0.08),
			transparent 60%
		),
		radial-gradient(
			260px 260px at 65% 60%,
			rgba(255, 210, 125, 0.06),
			transparent 55%
		);
	filter: blur(2px);
	animation: qwFloat 16s ease-in-out infinite alternate;
	pointer-events: none;
}

.thankyou-container {
	text-align: center;
	max-width: 820px;
	padding: clamp(1.25rem, 3.2vw, 2rem);
	border-radius: var(--radius);
	border: 1px solid rgba(255, 255, 255, 0.1);
	background: linear-gradient(
		180deg,
		rgba(255, 255, 255, 0.03),
		rgba(255, 255, 255, 0.02)
	);
	box-shadow: var(--shadow);
}

.thankyou-title {
	font-size: clamp(1.75rem, 3.5vw, 2.5rem);
	margin: 0 0 0.5rem;
	background: linear-gradient(
		90deg,
		var(--ink) 0%,
		var(--accent-2) 60%,
		var(--ink) 100%
	);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	animation: shimmer 6s linear infinite;
}

.thankyou-message {
	color: var(--ink);
	opacity: 0.92;
	line-height: 1.6;
	margin: 0 auto 1rem;
	max-width: 60ch;
}

/* кнопка в стилистике сайта */
.cta-button {
	display: inline-block;
	padding: 0.6rem 1.1rem;
	border-radius: 999px;
	text-decoration: none;
	font-weight: 700;
	color: #0a1618;
	background: linear-gradient(180deg, var(--accent), var(--accent-2));
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
	transition: transform 0.2s var(--easing), box-shadow 0.2s var(--easing),
		filter 0.2s var(--easing);
}
.cta-button:hover {
	transform: translateY(-2px);
	box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
	filter: saturate(1.05);
}
.cta-button:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(123, 211, 194, 0.28),
		0 8px 24px rgba(0, 0, 0, 0.35);
}

/* лёгкая анимация фона */
@keyframes qwFloat {
	from {
		transform: translateY(-2%);
		opacity: 0.9;
	}
	to {
		transform: translateY(2%);
		opacity: 1;
	}
}

/* предпочтения уменьшения анимаций */
@media (prefers-reduced-motion: reduce) {
	.thankyou-section::before {
		animation: none;
	}
	.thankyou-title {
		animation: none;
	}
}

/* компактная мобильная версия */
@media (max-width: 560px) {
	.thankyou-container {
		padding: 1rem;
	}
	.thankyou-message {
		font-size: 1rem;
	}
}