.start-trading {
	position: relative;
	width: 100%;
	min-height: calc(100vh - var(--header-height, 80px));
	height: auto;
	padding-top: 0;
	padding-bottom: 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	overflow: hidden;
	background-color: var(--color-gray-light);
	z-index: 15;
	box-sizing: border-box;
}

@media (min-width: 991px) and (min-height: 750px) {
	.start-trading {
		min-height: 750px;
	}
}

.start-trading-scroll-wrapper {
	position: relative;
	width: calc(var(--viewport-width, 100vw) + 1px);
	margin-left: calc(50% - (var(--viewport-width, 100vw) + 1px) / 2);
	max-width: none;
	box-sizing: border-box;
	z-index: 15;
	background-color: var(--color-gray-light);
}

.start-trading__container {
	position: relative;
	width: 100%;
	margin-top: min(max(50px, calc(3.125rem + (100 - 50) * ((100vw - 390px) / (1440 - 390)))), 100px);
	margin-bottom: min(max(50px, calc(3.125rem + (120 - 50) * ((100vw - 390px) / (1440 - 390)))), 120px);
}

/* Header Section */
.start-trading__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	margin-bottom: 70px;
	width: 100%;
}

.start-trading__title {
	font-size: var(--font-size-h3);
	line-height: var(--line-height-h3);
	color: var(--color-title);
	margin: 0;
}

/* Action Button */
.start-trading__action {
	flex-shrink: 0;
}

/* Main Grid Layout (Desktop & Tablet >= 768px) */
.start-trading__main {
	display: grid;
	grid-template-columns: 1fr 20px 1fr;
	align-items: center;
	gap: 30px;
	width: 100%;
}

/* Left Column: Steps List */
.start-trading__steps-list {
	display: flex;
	flex-direction: column;
	gap: 50px;
}

.start-trading__step-item {
	display: flex;
	align-items: center;
	gap: 40px;
	cursor: pointer;
	user-select: none;
	outline: none;
	transition: all 0.3s ease;
	opacity: 0.3;
}

.start-trading__step-num {
	font-size: var(--font-size-lead-in-2);
	line-height: var(--line-height-lead-in-2);
	font-weight: 500;
	color: var(--color-navy-blue);
	transition: color 0.3s ease, font-weight 0.3s ease;
	flex-shrink: 0;
	min-width: 34px;
}

.start-trading__step-item:not(.is-active) .start-trading__step-num {
	opacity: .3;
}

.start-trading__step-icon-box {
	width: 60px;
	height: 60px;
	border-radius: 10px;
	background-color: var(--color-navy-blue);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: background-color 0.3s ease, transform 0.3s ease;
	flex-shrink: 0;
}

.start-trading__step-icon {
	width: 32px;
	height: 32px;
	object-fit: contain;
	filter: brightness(0) invert(1);
	transition: transform 0.3s ease;
}

.start-trading__step-icon-placeholder {
	width: 24px;
	height: 24px;
	border-radius: 50%;
	background-color: var(--color-white-trans-40, rgba(255, 255, 255, 0.4));
}

.start-trading__step-title {
	font-size: var(--font-size-lead-in-3);
	line-height: var(--line-height-lead-in-3);
	font-weight: 500;
	color: var(--color-navy-blue);
	transition: color 0.3s ease, font-weight 0.3s ease;
}

/* Hover state on step item */
.start-trading__step-item:hover {
	opacity: 0.7;
}

.start-trading__step-item:hover .start-trading__step-icon-box {
	transform: scale(1.05);
}

/* Active Step state */
.start-trading__step-item.is-active {
	opacity: 1;
}

.start-trading__step-item.is-active .start-trading__step-num {
	color: var(--color-title);
}

.start-trading__step-item.is-active .start-trading__step-icon-box {
	background-color: var(--color-pink);
}

.start-trading__step-item.is-active .start-trading__step-title {
	color: var(--color-title);
}

/* Center Column: Progress Bar */
.start-trading__progress-bar {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100%;
}

.start-trading__progress-track {
	width: 10px;
	height: 350px;
	background-color: var(--color-white);
	position: relative;
	overflow: hidden;
}

.start-trading__progress-fill {
	width: 100%;
	height: 0%;
	background-color: var(--color-navy-blue);
	position: absolute;
	top: 0;
	left: 0;
	transition: height 0.15s ease-out;
}

/* Right Column: Step Images Display */
.start-trading__images {
	position: relative;
	width: 100%;
	aspect-ratio: 1 / 1;
	max-width: 440px;
	border-radius: 20px;
	overflow: hidden;
	justify-self: end;
	background-color: var(--color-white);
}

.start-trading__image-wrapper {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	visibility: hidden;
	transition: .6s ease-in-out;
	z-index: 1;
	border-radius: 20px;
	overflow: hidden;
}

.start-trading__image-wrapper.is-active {
	opacity: 1;
	visibility: visible;
	z-index: 2;
}

.start-trading__image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	border-radius: 20px;
}

.start-trading__image-placeholder {
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--color-gray-50);
	color: var(--color-navy-blue);
	font-size: var(--font-size-lead-in-5, 20px);
}

.start-trading__placeholder-logo {
	max-width: 50%;
	max-height: 50%;
	object-fit: contain;
}

.start-trading__placeholder-text {
	font-family: var(--font-heading);
	font-size: var(--font-size-lead-in-2, 30px);
	font-weight: 600;
	color: var(--color-navy-blue);
}

@media (max-width: 991px) {
	.start-trading {
		height: auto;
		min-height: unset;
	}

	.start-trading__container {
		margin-top: 0;
		margin-bottom: 0;
	}
}

/* Tablet Devices (768px <= screen <= 990px): Adjust 3-column sizing so all items fit cleanly */
@media (max-width: 990px) and (min-width: 768px) {
	.start-trading__header {
		margin-bottom: 30px;
	}

	.start-trading__title {
		font-size: var(--font-size-lead-in-1, 40px);
		line-height: var(--line-height-lead-in-1, 55px);
	}

	.start-trading__main {
		grid-template-columns: 1fr 16px 1fr;
		gap: 20px;
	}

	.start-trading__steps-list {
		gap: 24px;
	}

	.start-trading__step-item {
		gap: 20px;
	}

	.start-trading__step-num {
		font-size: var(--font-size-lead-in-3);
		line-height: var(--line-height-lead-in-3);
		min-width: 24px;
	}

	.start-trading__step-icon-box {
		width: 56px;
		height: 56px;
		border-radius: 10px;
	}

	.start-trading__step-icon {
		width: 24px;
		height: 24px;
	}

	.start-trading__step-title {
		font-size: var(--font-size-lead-in-4);
		line-height: var(--line-height-lead-in-4);
	}

	.start-trading__progress-track {
		width: 8px;
		height: 260px;
	}

	.start-trading__images {
		max-width: 360px;
	}
}

/* Mobile Devices (< 767px): Switch to single column stacked mobile layout */
@media (max-width: 767px) {
	.start-trading {
		height: auto;
		min-height: unset;
		padding-top: 60px !important;
		padding-bottom: 60px !important;
	}

	.start-trading__header {
		flex-direction: column;
		align-items: flex-start;
		gap: 20px;
		margin-bottom: 40px;
	}

	.start-trading__title {
		font-size: var(--font-size-h1);
		line-height: var(--line-height-h1);
	}

	.start-trading__main {
		grid-template-columns: 1fr;
		gap: 40px;
	}

	.start-trading__progress-bar {
		display: none;
	}

	.start-trading__steps-list {
		gap: 30px;
	}

	.start-trading__step-item {
		gap: 20px;
	}

	.start-trading__step-num {
		font-size: var(--font-size-lead-in-3);
		line-height: var(--line-height-lead-in-3);
		min-width: 28px;
	}

	.start-trading__step-icon-box {
		width: 56px;
		height: 56px;
		border-radius: 12px;
	}

	.start-trading__step-icon {
		width: 32px;
		height: 32px;
	}

	.start-trading__step-title {
		font-size: var(--font-size-lead-in-4);
		line-height: var(--line-height-lead-in-4);
	}

	.start-trading__images {
		max-width: 100%;
		border-radius: 20px;
		justify-self: center;
	}

	.start-trading__image-wrapper,
	.start-trading__image {
		border-radius: 20px;
	}

	.start-trading__step-item:not(.is-active) .start-trading__step-num,
	.start-trading__step-item {
		opacity: 1;
	}

	.start-trading__step-icon-box {
		background-color: var(--color-pink);
	}

	.start-trading__container {
		margin-top: 0;
		margin-bottom: 0;
	}
}