.gct {
	--gct-bg: #101213;
	--gct-surface: #2f3033;
	--gct-surface-raised: #3b3e42;
	--gct-text: #fff;
	--gct-secondary: #ccc;
	--gct-muted: #8d9099;
	--gct-border: rgba(255, 255, 255, .11);
	--gct-action: #9c27a8;
	--gct-action-hover: #b33cbe;
	--company-button: #ac2dc3;
	--company-button-hover: #92289a;
	margin: 45px 0 45px;
	color: var(--gct-text);
	font-family: Raleway, Arial, sans-serif;
}

.gct *,
.gct *::before,
.gct *::after { box-sizing: border-box; }

.gct__header {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
	gap: 32px;
	align-items: end;
	margin-bottom: clamp(26px, 4vw, 44px);
}

.gct__header h2 {
	margin: 0;
	color: var(--gct-text);
	font-size: 48px;
	font-weight: 700;
	line-height: 1.2;
	letter-spacing: -.01em;
}

.gct__header p {
	max-width: 520px;
	margin: 0;
	color: var(--gct-secondary);
	font-size: 16px;
	line-height: 1.65;
}

.gct__shell {
	overflow: hidden;
	border: 1px solid var(--gct-border);
	border-radius: 24px;
	background:
		radial-gradient(circle at 90% 8%, rgba(156, 39, 168, .15), transparent 34%),
		linear-gradient(145deg, rgba(255, 255, 255, .026), transparent 42%),
		rgba(10, 10, 10, .76);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, .055), 0 28px 80px rgba(0, 0, 0, .26);
	-webkit-backdrop-filter: blur(22px) saturate(132%);
	backdrop-filter: blur(22px) saturate(132%);
}

.gct__years {
	display: grid;
	grid-template-columns: repeat(8, minmax(112px, 1fr));
	gap: 8px;
	padding: 16px 16px 0;
}

.gct__year {
	min-height: 72px;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	justify-content: center;
	padding: 12px 14px;
	border: 1px solid rgba(255, 255, 255, .09);
	border-radius: 8px;
	background: rgba(16, 18, 19, .56);
	color: var(--gct-secondary);
	font: inherit;
	text-align: left;
	cursor: pointer;
	appearance: none;
	transition: transform 140ms cubic-bezier(.22, .61, .36, 1), background 200ms cubic-bezier(.22, .61, .36, 1), border-color 200ms cubic-bezier(.22, .61, .36, 1), color 200ms cubic-bezier(.22, .61, .36, 1), box-shadow 200ms cubic-bezier(.22, .61, .36, 1);
}

.gct__year strong {
	font-size: 13px;
	font-weight: 500;
	line-height: 1.15;
	white-space: nowrap;
}

.gct__year:hover { transform: translateY(-2px); border-color: rgba(207, 110, 217, .5); color: #fff; }
.gct__year.is-active {
	border-color: var(--gct-action);
	background: var(--gct-action);
	color: #fff;
	box-shadow: 0 12px 30px rgba(156, 39, 168, .26);
}
.gct__year:focus-visible,
.gct__button:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

.gct__progress {
	height: 2px;
	margin: 18px 22px 0;
	background: rgba(255, 255, 255, .09);
}
.gct__progress span {
	display: block;
	width: 0;
	height: 100%;
	background: var(--gct-action);
	box-shadow: 0 0 18px rgba(156, 39, 168, .66);
	transition: width 300ms cubic-bezier(.22, .61, .36, 1);
}

.gct__panels {
	display: grid;
	padding: clamp(30px, 3.5vw, 48px);
}
.gct__panel {
	display: grid;
	grid-area: 1 / 1;
	grid-template-columns: minmax(180px, .38fr) minmax(0, 1.62fr);
	column-gap: clamp(30px, 5vw, 72px);
	row-gap: clamp(24px, 3vw, 36px);
	align-items: start;
}
.gct__panel[hidden] {
	display: grid;
	visibility: hidden;
	pointer-events: none;
}
.gct__panel.is-active { animation: gct-panel-in 300ms cubic-bezier(.22, .61, .36, 1); }

.gct__period h3 {
	margin: 0;
	color: var(--gct-text);
	font-size: 48px;
	font-weight: 700;
	line-height: .98;
	letter-spacing: -.055em;
	text-wrap: balance;
}

.gct__story { color: var(--gct-secondary); font-size: 16px; line-height: 1.7; }
.gct__story p { margin: 0 0 16px; }
.gct__story p:last-child { margin-bottom: 0; }

.gct__milestones {
	position: relative;
	grid-column: 1 / -1;
	overflow: hidden;
	isolation: isolate;
	padding: 24px;
	border: 1px solid rgba(255, 255, 255, .16);
	border-radius: 14px;
	background:
		linear-gradient(145deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, .025) 48%, rgba(156, 39, 168, .09)),
		rgba(16, 18, 19, .30);
	box-shadow:
		inset 0 1px 0 rgba(255, 255, 255, .12),
		0 18px 48px rgba(0, 0, 0, .18);
	-webkit-backdrop-filter: blur(18px) saturate(140%);
	backdrop-filter: blur(18px) saturate(140%);
}
.gct__milestones::after {
	content: '';
	position: absolute;
	z-index: -1;
	inset: 0;
	background: radial-gradient(circle at 100% 0, rgba(211, 103, 222, .14), transparent 42%);
	pointer-events: none;
}
.gct__milestones h4 {
	margin: 0 0 18px;
	color: var(--gct-text);
	font-size: 13px;
	font-weight: 600;
	letter-spacing: .02em;
}
.gct__milestones ul {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
	gap: 14px 24px;
	margin: 0;
	padding: 0;
	list-style: none;
}
.gct__milestones li {
	position: relative;
	margin-top: 0;
	padding-left: 18px;
	color: var(--gct-secondary);
	font-size: 13px;
	line-height: 1.55;
}
.gct__milestones li::before {
	content: '' !important;
	position: absolute;
	left: 0;
	top: .6em;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--gct-action);
	box-shadow: 0 0 12px rgba(156, 39, 168, .62);
}

.gct__footer {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 20px;
	padding: 0 clamp(30px, 3.5vw, 48px) clamp(30px, 3.5vw, 44px);
}
.gct__actions { display: flex; gap: 10px; }
.gct__button {
	min-width: 104px;
	height: 48px;
	padding: 0 24px;
	border: 0;
	border-radius: 8px;
	background: var(--company-button);
	color: #fff;
	font: inherit;
	font-size: 16px;
	font-weight: 500;
	line-height: 1.3;
	cursor: pointer;
	transition: background .15s;
}
.gct__button--secondary { border: 1px solid rgba(255, 255, 255, .16); background: #252729; color: #fff; }
.gct__button--secondary:hover { border-color: rgba(255, 255, 255, .34); background: #34363a; color: #fff; }
.gct__button--primary { border: 1px solid var(--company-button); background: var(--company-button); color: #fff; }
.gct__button--primary:hover { border-color: var(--company-button-hover); background: var(--company-button-hover); color: #fff; }

@keyframes gct-panel-in {
	from { opacity: 0; transform: translateY(10px); }
	to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1100px) {
	.gct__years { display: flex; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; scroll-snap-type: x proximity; }
	.gct__years::-webkit-scrollbar { display: none; }
	.gct__year { flex: 0 0 136px; scroll-snap-align: start; }
	.gct__panel { grid-template-columns: minmax(180px, .45fr) minmax(0, 1fr); }
	.gct__milestones { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
	.gct { margin: 45px 0 28px; }
	.gct__header { grid-template-columns: 1fr; gap: 16px; }
	.gct__header h2 { font-size: clamp(36px, 10vw, 48px); }
	.gct__header p { font-size: 15px; }
	.gct__shell { border-radius: 18px; }
	.gct__years { padding: 12px 12px 8px; }
	.gct__progress { margin: 10px 16px 0; }
	.gct__panels { padding: 32px 22px; }
	.gct__panel { grid-template-columns: 1fr; gap: 24px; }
	.gct__milestones { grid-column: auto; }
	.gct__footer { padding: 0 22px 28px; }
}

@media (max-width: 480px) {
	.gct__year { flex-basis: 124px; min-height: 66px; }
	.gct__period h3 { font-size: 42px; }
	.gct__story { font-size: 15px; }
	.gct__milestones { padding: 20px; }
	.gct__footer { align-items: flex-end; }
	.gct__actions { width: 100%; max-width: 238px; }
	.gct__button { flex: 1 1 0; min-width: 0; padding-inline: 14px; }
}

@media (prefers-reduced-motion: reduce) {
	.gct *,
	.gct *::before,
	.gct *::after {
		animation-duration: .01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: .01ms !important;
		scroll-behavior: auto !important;
	}
}

@media print {
	.gct__years,
	.gct__progress,
	.gct__footer { display: none !important; }
	.gct__panels { display: block; }
	.gct__panel { grid-area: auto; }
	.gct__panel[hidden] { display: grid !important; visibility: visible; margin-top: 44px; }
}