.container_div {
	max-width: 1200px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

/* ===== Common Section Styles ===== */
.section-title_div {
	font-size: 42px;
	line-height: 160%;
	margin-bottom: 50px;
	font-weight: 700;
	color: #1a1a2e;
	position: relative;
	letter-spacing: -0.5px;
	text-align: center;
	animation: fadeIn 0.8s ease-out;
}

.section-title_div::after {
	content: '';
	position: absolute;
	bottom: -20px;
	left: 50%;
	transform: translateX(-50%);
	width: 80px;
	height: 4px;
	background: linear-gradient(90deg, #8b5cf6, #a855f7);
	border-radius: 2px;
	animation: expandWidth 0.8s ease-out 0.3s both;
}

/* ===== Header Section ===== */
.header_div {
	padding: 80px 20px 60px;
	background: #f8f9ff;
	position: relative;
}

.header_div::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 1px;
	background: rgba(139, 92, 246, 0.2);
}

.header-content {
	display: flex;
	align-items: flex-start;
	gap: 60px;
}

.header-left {
	flex: 1.2;
	animation: fadeInUp 0.8s ease-out;
}

.header-right {
	flex: 1;
	padding-top: 20px;
	animation: fadeInRight 0.8s ease-out 0.3s both;
}

.badge {
	display: inline-block;
	background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
	color: white;
	padding: 10px 24px;
	border-radius: 30px;
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 1.5px;
	margin-bottom: 30px;
	box-shadow: 0 8px 20px rgba(139, 92, 246, 0.25);
	animation: pulse 2s infinite;
}

h1 {
	font-size: 52px;
	font-weight: 800;
	line-height: 1.2;
	background: linear-gradient(135deg, #1a1a2e 0%, #4a4a6e 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	margin-bottom: 30px;
	letter-spacing: -1px;
}

.subtitle {
	font-size: 20px;
	color: #4b5563;
	line-height: 1.5;
	font-weight: 400;
	margin-bottom: 25px;
}

.subtitle strong {
	color: #8b5cf6;
	font-size: 22px;
	line-height: 160%;
}

.ebbinghaus-graph {
	width: 100%;
/*
	height: 350px;
	background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
	border: 3px solid transparent;
	background-clip: padding-box;
	border-image: linear-gradient(135deg, #8b5cf6, #ec4899) 1;
	border-radius: 20px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	color: #8b5cf6;
	font-size: 16px;
	padding: 20px;
	position: relative;
	overflow: hidden;
*/
	text-align: center;
}

.ebbinghaus-graph img {
	max-width: 100%;
	transition: all 0.3s ease;
	box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
}

.ebbinghaus-graph img:hover {
	transform: scale(1.02);
	box-shadow: 0 30px 60px rgba(139, 92, 246, 0.25);
}

.graph-label {
	font-size: 14px;
	color: #6b7280;
	margin-top: 15px;
	font-style: italic;
}

/* ===== Why Section ===== */
.why-section {
	padding: 100px 20px;
	background: #fafbfc;
	text-align: center;
	position: relative;
}

.big-stat {
	display: inline-block;
	margin: 30px 0 60px;
	animation: scaleUp 0.8s ease-out 0.5s both;
}

.big-number {
	font-size: 84px;
	font-weight: 900;
	background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	line-height: 1;
	margin-bottom: 10px;
	filter: drop-shadow(0 4px 20px rgba(16, 185, 129, 0.3));
}

.big-label {
	font-size: 22px;
	line-height: 160%;
	color: #4b5563;
	font-weight: 600;
}

.pillars-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 40px;
	max-width: 1000px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.pillar-card {
	background: white;
	border-radius: 24px;
	padding: 40px 30px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
	border: 2px solid transparent;
	transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
	position: relative;
	overflow: hidden;
	animation: fadeInUp 0.8s ease-out both;
}

.pillar-card:nth-child(1) { animation-delay: 0.6s; }
.pillar-card:nth-child(2) { animation-delay: 0.8s; }
.pillar-card:nth-child(3) { animation-delay: 1s; }

.pillar-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 5px;
	background: linear-gradient(90deg, #8b5cf6, #a855f7);
	transform: translateX(-100%);
	transition: transform 0.4s ease;
}

.pillar-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 20px 50px rgba(139, 92, 246, 0.2);
	border-color: rgba(139, 92, 246, 0.2);
}

.pillar-card:hover::before {
	transform: translateX(0);
}

.pillar-icon {
	width: 64px;
	height: 64px;
	margin: 0 auto 25px;
	border-radius: 16px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 32px;
	line-height: 160%;
	transition: transform 0.3s ease;
}

.pillar-card:hover .pillar-icon {
	transform: rotate(5deg) scale(1.1);
}

.pillar-card:nth-child(1) .pillar-icon {
	background: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
	box-shadow: 0 8px 20px rgba(251, 191, 36, 0.2);
}

.pillar-card:nth-child(2) .pillar-icon {
	background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
	box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

.pillar-card:nth-child(3) .pillar-icon {
	background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
	box-shadow: 0 8px 20px rgba(34, 197, 94, 0.2);
}

.pillar-title {
	font-size: 24px;
	line-height: 160%;
	font-weight: 700;
	color: #1a1a2e;
	margin-bottom: 15px;
}

.pillar-content {
	font-size: 19px;
	color: #6b7280;
	line-height: 1.5;
}

.pillar-highlight {
	font-weight: 700;
	background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

/* ===== Process Section (7단계) ===== */
.process-section {
	padding: 100px 20px;
	background: #ffffff;
	text-align: center;
	position: relative;
}

.process-flow {
	max-width: 1100px;
	margin: 60px auto 0;
	background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
	border-radius: 30px;
	padding: 60px 50px;
	position: relative;
	overflow: hidden;
	box-shadow: 0 30px 80px rgba(139, 92, 246, 0.25);
}

.process-flow::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
	pointer-events: none;
}

.process-flow::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 40px;
	right: 40px;
	height: 4px;
	background: rgba(255, 255, 255, 0.3);
	z-index: 0;
}

.process-steps {
	display: flex;
	justify-content: space-between;
	position: relative;
	z-index: 1;
	gap: 10px;
	flex-wrap: wrap;
}

.process-step {
	flex: 1;
	min-width: 120px;
	text-align: center;
	position: relative;
	animation: fadeInUp 0.6s ease-out both;
}

.process-step:nth-child(1) { animation-delay: 0.1s; }
.process-step:nth-child(2) { animation-delay: 0.2s; }
.process-step:nth-child(3) { animation-delay: 0.3s; }
.process-step:nth-child(4) { animation-delay: 0.4s; }
.process-step:nth-child(5) { animation-delay: 0.5s; }
.process-step:nth-child(6) { animation-delay: 0.6s; }
.process-step:nth-child(7) { animation-delay: 0.7s; }

.step-number {
	width: 56px;
	height: 56px;
	background: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 15px;
	font-weight: 900;
	color: #8b5cf6;
	font-size: 28px;
	line-height: 160%;
	position: relative;
	z-index: 2;
	transition: all 0.3s ease;
	box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.process-step:hover .step-number {
	transform: scale(1.15) rotate(10deg);
	box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
	background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
	color: white;
}

.step-label {
	font-size: 21px;
	color: white;
	font-weight: 700;
	line-height: 1.2;
	margin-bottom: 5px;
	text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.step-description {
	font-size: 16px;
	color: rgba(255, 255, 255, 0.85);
	font-weight: 500;
	line-height: 1.3;
}

.process-arrow {
	position: absolute;
	top: 28px;
	right: -20px;
	color: white;
	font-size: 32px;
	line-height: 160%;
	font-weight: 900;
	z-index: 1;
	opacity: 0.6;
	animation: moveArrow 2s ease-in-out infinite;
	text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.process-step:last-child .process-arrow {
	display: none;
}

/* ===== Materials Section (교재) ===== */
.materials-section {
	padding: 100px 20px;
	background: #f8f9ff;
	position: relative;
}

.materials-content {
	text-align: center;
	margin-bottom: 30px;
	position: relative;
	z-index: 1;
}

.materials-title {
	font-size: 42px;
	line-height: 160%;
	font-weight: 700;
	color: #1a1a2e;
	margin-bottom: 20px;
	letter-spacing: -0.5px;
	position: relative;
	display: inline-block;
}

.materials-title::after {
	content: '📚';
	position: absolute;
	right: -60px;
	top: 0;
	font-size: 36px;
	line-height: 160%;
	animation: bounce 2s ease-in-out infinite;
}

.materials-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
	max-width: 1200px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.material-placeholder {
	background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
	border: 2px solid #e5e7eb;
	border-radius: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #6b7280;
	font-size: 16px;
	font-weight: 600;
	transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
	box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
	position: relative;
	overflow: hidden;
	cursor: pointer;
}

.material-placeholder::before {
	content: '';
	position: absolute;
	top: -100%;
	left: 0;
	width: 100%;
	height: 100%;
	background: linear-gradient(180deg, transparent, rgba(139, 92, 246, 0.1));
	transition: top 0.5s ease;
}

.material-placeholder:hover {
	border-color: #8b5cf6;
	color: #8b5cf6;
	transform: translateY(-8px) scale(1.02);
	box-shadow: 0 20px 50px rgba(139, 92, 246, 0.2);
}

.material-placeholder:hover::before {
	top: 0;
}

.material-placeholder:nth-child(odd) {
	animation: floatLeft 4s ease-in-out infinite;
}

.material-placeholder:nth-child(even) {
	animation: floatRight 4s ease-in-out infinite;
}

.material-placeholder img {
	max-width: 100%;
}

/* ===== Bank Section (문제은행) ===== */
.bank-section {
	padding: 100px 20px;
	background: #fafbfc;
	position: relative;
}

.bank-header {
	text-align: center;
	margin-bottom: 30px;
	position: relative;
	z-index: 1;
}

.bank-title {
	font-size: 42px;
	line-height: 160%;
	font-weight: 700;
	color: #1a1a2e;
	margin-bottom: 20px;
	letter-spacing: -0.5px;
	position: relative;
	display: inline-block;
}

.bank-title::after {
	content: '💡';
	position: absolute;
	right: -60px;
	top: 0;
	font-size: 36px;
	line-height: 160%;
	animation: rotate 3s linear infinite;
}

.types-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
	max-width: 1200px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.type-placeholder {
/*
	height: 180px;
*/
	background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
	border: 2px solid #e5e7eb;
	border-radius: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #6b7280;
	font-size: 16px;
	font-weight: 600;
	transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
	box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
	position: relative;
	overflow: hidden;
	cursor: pointer;
}

.type-placeholder::after {
	content: '✨';
	position: absolute;
	top: 20px;
	right: 30px;
	font-size: 24px;
	line-height: 160%;
	opacity: 0;
	transition: all 0.3s ease;
}

.type-placeholder:hover {
	border-color: #3b82f6;
	color: #3b82f6;
	transform: translateY(-8px) rotate(-1deg);
	box-shadow: 0 20px 50px rgba(59, 130, 246, 0.2);
	background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.type-placeholder:hover::after {
	opacity: 1;
	transform: scale(1.5);
}

.type-placeholder img {
	max-width: 100%;
}

/* ===== FAQ Section ===== */
.faq-section {
	padding: 100px 20px;
	background: #ffffff;
	position: relative;
}

.faq-header {
	text-align: center;
	margin-bottom: 70px;
	position: relative;
	z-index: 1;
}

.faq-title {
	font-size: 38px;
	line-height: 160%;
	font-weight: 700;
	background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	margin-bottom: 12px;
	letter-spacing: -0.5px;
}

.faq-grid {
	display: grid;
	gap: 25px;
	max-width: 900px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.faq-item {
	background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
	border: 2px solid transparent;
	border-radius: 24px;
	padding: 40px;
	transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
	position: relative;
	overflow: hidden;
}

.faq-item::before {
	content: '';
	position: absolute;
	top: 0;
	left: -100%;
	width: 100%;
	height: 100%;
	background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.05), transparent);
	transition: left 0.5s ease;
}

.faq-item:hover {
	box-shadow: 0 20px 50px rgba(139, 92, 246, 0.15);
	border-color: rgba(139, 92, 246, 0.3);
	transform: translateX(10px);
}

.faq-item:hover::before {
	left: 100%;
}

.faq-question {
	font-size: 21px;
	font-weight: 700;
	color: #1a1a2e;
	margin-bottom: 25px;
	display: flex;
	align-items: flex-start;
	gap: 15px;
	line-height: 1.5;
}

.faq-question::before {
	content: 'Q';
	background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
	color: white;
	width: 32px;
	height: 32px;
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 800;
	font-size: 16px;
	flex-shrink: 0;
	margin-top: 2px;
	box-shadow: 0 6px 20px rgba(139, 92, 246, 0.3);
}

.faq-answer {
	font-size: 18px;
	line-height: 1.6;
	color: #4b5563;
	padding-left: 47px;
}

.faq-answer p {
	margin-bottom: 0;
	line-height: 1.6;
}

.answer-highlight {
	color: #8b5cf6;
	font-weight: 600;
	position: relative;
	padding-bottom: 2px;
	border-bottom: 2px solid rgba(139, 92, 246, 0.3);
}

/* ===== Animations ===== */
@keyframes fadeIn {
	from { opacity: 0; }
	to { opacity: 1; }
}

@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(30px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes fadeInRight {
	from {
		opacity: 0;
		transform: translateX(30px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

@keyframes expandWidth {
	from { width: 0; }
	to { width: 80px; }
}

@keyframes pulse {
	0%, 100% { transform: scale(1); }
	50% { transform: scale(1.05); }
}

@keyframes scaleUp {
	from {
		transform: scale(0.5);
		opacity: 0;
	}
	to {
		transform: scale(1);
		opacity: 1;
	}
}

@keyframes bounce {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-10px); }
}

@keyframes rotate {
	from { transform: rotate(0deg); }
	to { transform: rotate(360deg); }
}

@keyframes moveArrow {
	0%, 100% { transform: translateX(0); }
	50% { transform: translateX(5px); }
}

@keyframes floatLeft {
	0%, 100% { transform: translateX(0); }
	50% { transform: translateX(-5px); }
}

@keyframes floatRight {
	0%, 100% { transform: translateX(0); }
	50% { transform: translateX(5px); }
}

/* ===== Media Queries ===== */
@media (max-width: 968px) {
	.header-content {
		flex-direction: column;
		gap: 0px;
	}

	.materials-grid,
	.types-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 15px;
	}

	.process-steps {
		flex-direction: column;
		gap: 30px;
	}

	.process-flow::after {
		display: none;
	}

	.process-arrow {
		display: none;
	}
}

@media (max-width: 768px) {
	body {
		font-size: 16px;
	}

	h1 {
		font-size: 36px;
		line-height: 160%;
	}

	.section-title_div {
		font-size: 32px;
		line-height: 160%;
	}

	.materials-title,
	.bank-title {
		font-size: 31px;
		line-height: 160%;
	}

	.materials-title::after,
	.bank-title::after {
		right: -50px;
		font-size: 28px;
		line-height: 160%;
	}

	.pillars-grid {
		grid-template-columns: 1fr;
	}

	.big-number {
		font-size: 64px;
		line-height: 160%;
	}

	/* Mobile Process Layout */
	.process-flow {
		padding: 30px 20px;
	}

	.process-steps {
		flex-direction: column;
		gap: 20px;
	}

	.process-step {
		display: flex;
		align-items: center;
		gap: 15px;
		text-align: left;
	}

	.step-number {
		margin: 0;
		flex-shrink: 0;
		width: 44px;
		height: 44px;
		font-size: 22px;
		line-height: 160%;
	}

	.step-content {
		flex: 1;
		display: flex;
		align-items: center;
		gap: 15px;
	}

	.step-label {
		font-size: 18px;
		line-height: 1;
		margin-bottom: 0;
		flex-shrink: 0;
		min-width: 70px;
	}

	.step-label::after {
		content: ' -';
		color: rgba(255, 255, 255, 0.6);
		font-weight: normal;
	}

	.step-description {
		font-size: 15px;
		line-height: 1;
		display: inline;
		flex: 1;
	}

	/* FAQ Mobile */
	.faq-title {
		font-size: 28px;
		line-height: 160%;
	}

	.faq-item {
		padding: 25px 20px;
	}

	.faq-question {
		font-size: 18px;
	}

	.faq-answer {
		font-size: 16px;
		line-height: 1.4;
		padding-left: 42px;
	}

	.faq-answer p {
		line-height: 1.4;
	}
}