:root {
    --bg: #0b0e14;
    --panel: #11161f;
    --ink: #e7ecf3;
    --muted: #9aa7b8;
    --brand: #6aa9ff;
    --chip: #1b2433;
    --line: #223049;
    --radius: 16px;
    --shadow: 0 6px 24px rgba(0, 0, 0, .22), 0 2px 6px rgba(0, 0, 0, .18);
    --gap: 20px;
    --max-width: 1490px;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #eaeaea;
        --panel: #ffffff;
        --ink: #0b1320;
        --muted: #5b6b81;
        --chip: #eef2f8;
        --line: #e6ecf5;
        --brand: #3b82f6;
    }

    body {
        background: var(--bg);
    }
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--bg);
    font-family: "Segoe UI", system-ui, -apple-system, "Noto Sans KR", sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

#header {
    position: fixed;
    width: 100%;
    height: 70px;
    font-size: 1em;
    z-index: 9;
    background-color: #fff;
}

#header .top.fixed {
    background-color: #eaeaea;
    border-bottom: 2px solid #fff;
}

#header .top .top_inner {
    margin: 0 auto;
    max-width: var(--max-width);
    height: 70px;
    display: flex;
    overflow: hidden;
    align-items: center;
    padding: 0 25px;
}

#header .top .top_inner h1 {
    margin: 0;
}

#header .top .logo {
    /* float:left;
	width:47px;
	height:28px;
	overflow: hidden;
	margin: 25px 0; */
}

#header .top .logo img {
    width: 66px;
    /* height: 28px; */
    vertical-align: middle;
}

#header .download {
    margin-left: auto;
    cursor: pointer;
}

#header .download button {
    padding: 5px 15px;
    background-color: #666;
    color: #000;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.5s;
}

button:hover {
    background-color: #888;
}

.wrapper {
    width: 100%;
    position: relative;
    padding-bottom:120px;
    /* display: flex;
    flex-direction: column;
    justify-content: start;
    height: 100%; */
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 100px 20px 30px;
    height: 100%;
}

.container_inner {
    display: flex;
    gap: 48px;
}

/* 섹션(cover) */
.cover {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cover>h3 {
    font-size: clamp(20px, 2.4vw, 28px);
    font-weight: 800;
    letter-spacing: .2px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cover>h3::after {
    content: "";
    height: 1px;
    flex: 1;
    background: linear-gradient(90deg, var(--line), transparent 60%);
}

/* 박스(카테고리) */
.box {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.box>h4 {
    font-size: clamp(16px, 1.6vw, 18px);
    font-weight: 700;
    color: var(--muted);
}

/* 카드 그리드 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gap);
}

/* 카드 */
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: clip;
    /* 이미지 라운드*/
    display: flex;
    flex-direction: column;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.card:focus-within,
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, .28), 0 4px 10px rgba(0, 0, 0, .18);
    border-color: rgba(59, 130, 246, .35);
}

.card a {
    color: inherit;
    text-decoration: none;
    display: block;
    height: 100%;
}

.card figure {
    margin: 0;
    aspect-ratio: 12 / 7;
    background: #0f1725;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.card-body {
    padding: 16px 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-title {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .2px;
}

.card-meta {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.card-desc {
    font-size: 14px;
    color: var(--ink);
    opacity: .95;
}

/* 칩(기술스택) */
.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 4px 0 0;
    padding: 0;
    list-style: none;
}

.tech-list li {
    font-size: 12px;
    font-weight: 600;
    background: var(--chip);
    color: var(--muted);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px 10px;
    line-height: 1;
    letter-spacing: .2px;
}

/* 섹션 간 여백 조정 */
@media (max-width: 600px) {
    .container {
        /* padding: 28px 14px; */
    }

    :root {
        --gap: 16px;
        --radius: 14px;
    }
}

/* 키보드 포커스 접근성 */
a:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 3px;
    border-radius: 8px;
}

/* ====== META / ROLE / KPI / CTA ====== */
.meta-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 2px;
}

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
}

.meta-item svg {
    width: 16px;
    height: 16px;
    flex: 0 0 16px;
    opacity: .8;
    margin-top: 2px;
}

.role-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0;
}

.role-badge {
    font-size: 12px;
    font-weight: 700;
    padding: 6px 10px;
    line-height: 1;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(59, 130, 246, .12), rgba(59, 130, 246, .06));
    border: 1px solid rgba(59, 130, 246, .35);
    color: #8fb6ff;
}

.kpi {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--line);
}

.kpi-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--muted);
}

.kpi-bar {
    flex: 1;
    height: 6px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--line);
}

.kpi-bar>i {
    display: block;
    height: 100%;
    width: 0%;
    background: var(--brand);
    opacity: .85;
}

.card-footer {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.btn {
    appearance: none;
    border: 1px solid var(--line);
    background: var(--chip);
    color: var(--ink);
    font-size: 13px;
    font-weight: 700;
    padding: 10px 12px;
    border-radius: 12px;
    line-height: 1;
    transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

.btn:hover {
    transform: translateY(-2px);
    border-color: rgba(59, 130, 246, .45);
}

.btn.primary {
    background: linear-gradient(180deg, rgba(59, 130, 246, .22), rgba(59, 130, 246, .12));
    border-color: rgba(59, 130, 246, .45);
    color: #7f98b9;
}

/* 카드 내부 간격 살짝 보정 */
.card-body {
    padding: 18px 16px 14px;
    gap: 12px;
}

.card-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title small {
    font-weight: 700;
    font-size: 12px;
    color: var(--muted);
}

span.title {
    font-size: 11px;
    color: var(--brand);
}

.container_inner {
    display: flex;
    justify-content: space-between;
}

/* ----- 좌우 분할 / 리사이즈 ----- */
.split {
    display: flex;
    align-items: stretch;
    gap: 0;
    /* height: calc(100vh - 200px); */
    /* background: var(--bg); */
    /* border: 1px solid var(--line); */
    /* border-radius: 12px; */
    /* overflow: hidden; */
}

.pane {
    min-width: 200px;
    overflow: auto;
    background: var(--panel);
}

.pane-left {
    flex: 0 0 263px;
    /* 초기 너비 */
    border-right: 1px solid var(--line);
    border-radius: 5px;
    overflow: hidden;
    padding: 10px 0 50px;
}

.pane-right {
    flex: 1 1 auto;
    border-radius: 5px;
    overflow: hidden;
}

.gutter {
    width: 6px;
    cursor: col-resize;
    flex: 0 0 6px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .06), transparent);
}

.gutter:hover,
.gutter:focus {
    background: linear-gradient(90deg, rgba(59, 130, 246, .25), rgba(59, 130, 246, .35), rgba(59, 130, 246, .25));
    outline: none;
}

/* ----- 좌측 목록 스타일 ----- */
.list {
    display: flex;
    flex-direction: column;
}

.list-section-title {
    padding: 14px 14px 6px;
    font-size: 13px;
    color: var(--muted);
    border-bottom: 1px dashed #eaeaea;
    font-weight: 900;
    border-top: 1px dashed #eaeaea;
}

.list-group {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 0 15px 20px;
}

.list-group a{
    width: 100%;
    transform: translate(0, 0);
    border-radius: 5px;
    overflow: hidden;
    transition: transform 0.3s;
}


.list-item {
    display: grid;
    /*grid-template-columns: 56px 1fr;
    gap: 12px;
    padding: 12px 14px;*/
    border-bottom: 1px solid rgba(255, 255, 255, .04);
    text-decoration: none;
    color: inherit;
    outline: none;
}

.list-item:hover {
    background: rgba(255, 255, 255, .04);
}
/*
.list-item[aria-selected="true"] {
    background: rgba(59, 130, 246, .18);
}
*/
.list-thumb {
    width: 56px;
    height: 42px;
    background: #0f1725;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.list-body {
    display: flex;
    position: relative;
    flex-direction: column;
    gap: 4px;
    padding: 25px 10px;
    border-radius: 5px;
    text-align: center;
    color: #fff;
    font-size: 16px;
    font-weight: 900;
}

.btn-item .list-body::before{
    content:"";
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.2);
    z-index: 1;
}
.list_section{
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.list-title {
    font-weight: 800;
    font-size: 14px;
    z-index: 1;
}

.list-meta {
    font-size: 12px;
    color: var(--muted);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.list-badges {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.list-badge {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--chip);
    border: 1px solid var(--line);
    color: var(--muted);
    line-height: 1;
}

/* ----- 우측 상세 뷰 ----- */
.view-empty {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 14px;
}

.view-wrap {
    padding: 22px;
    max-width: 900px;
    margin: 0 auto;
}

.view-figure {
    width: 50%;
    margin: 0 auto;
    margin-bottom: 20px;
    max-width: 800px;
    aspect-ratio: 12/7;
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    background: #0f1725;
}

.view-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.view-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.view-title {
    font-size: 22px;
    font-weight: 900;
}

.view-date {
    font-size: 12px;
    color: var(--muted);
    font-weight: 700;
}

.view-desc {
    margin: 24px 0 14px;
}

.view-meta {
    display: grid;
    gap: 8px;
    margin: 10px 0;
}

.view-meta-item {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    font-size: 13px;
    color: var(--muted);
}

.view-tech {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.view-tech .list-badge {
    font-size: 12px;
}

/* KPI 재사용 */
.kpi {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px dashed var(--line);
}

.kpi-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--muted);
}

.kpi-bar {
    flex: 1;
    height: 6px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--line);
}

.kpi-bar>i {
    display: block;
    height: 100%;
    width: 0%;
    background: var(--brand);
    opacity: .85;
}

/* 접근성 포커스 */
.list-item:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: -2px;
}

/* confirm modal */
.confirm-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.confirm-modal {
    width: min(420px, 92vw);
    background: var(--panel);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 18px;
}

.confirm-modal h3 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 900;
}

.confirm-modal p {
    margin: 0 0 14px;
    font-size: 14px;
    color: var(--muted);
}

.confirm-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.confirm-btn {
    appearance: none;
    border: 1px solid var(--line);
    background: var(--chip);
    color: var(--ink);
    font-size: 13px;
    font-weight: 700;
    border-radius: 10px;
    padding: 9px 12px;
    cursor: pointer;
}

.confirm-btn.primary {
    background: linear-gradient(180deg, rgba(59, 130, 246, .22), rgba(59, 130, 246, .12));
    border-color: rgba(59, 130, 246, .45);
    color: #333;
}


.btn-3d {
    position: relative;
    display: inline-block;
    font-size: 12px;
    padding: 5px 10px;
    color: white;
    /* margin: 20px 10px 10px; */
    border-radius: 6px;
    text-align: center;
    transition: top .01s linear;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.15);
    color: #333;
    font-weight: 900;
    text-decoration: none;
}

.btn-3d.red:hover {
    background-color: #e74c3c;
}

.btn-3d.blue:hover {
    background-color: #699DD1;
}

.btn-3d.green:hover {
    background-color: #80C49D;
}

.btn-3d.purple:hover {
    background-color: #D19ECB;
}

.btn-3d.yellow:hover {
    background-color: #F0D264;
}

.btn-3d.cyan:hover {
    background-color: #82D1E3;
}

.btn-3d:active {
    top: 9px;
}

/* 3D button colors */
.btn-3d.red {
    background-color: #e74c3c;
    box-shadow: 0 0 0 1px #c63702 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 #C24032,
        0 8px 0 1px rgba(0, 0, 0, 0.4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.red:active {
    box-shadow: 0 0 0 1px #c63702 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

.btn-3d.blue {
    background-color: #6DA2D9;
    box-shadow: 0 0 0 1px #6698cb inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(110, 164, 219, .7),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.black {
    background-color: #333;
    box-shadow: 0 0 0 1px #333 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(0, 0, 0, .7),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.blue:active {
    box-shadow: 0 0 0 1px #6191C2 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

.btn-3d.green {
    background-color: #82c8a0;
    box-shadow: 0 0 0 1px #82c8a0 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(126, 194, 155, .7),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.green:active {
    box-shadow: 0 0 0 1px #82c8a0 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

.btn-3d.purple {
    background-color: #cb99c5;
    box-shadow: 0 0 0 1px #cb99c5 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(189, 142, 183, .7),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.purple:active {
    box-shadow: 0 0 0 1px #cb99c5 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

.btn-3d.cyan {
    background-color: #7fccde;
    box-shadow: 0 0 0 1px #7fccde inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(102, 164, 178, .6),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.cyan:active {
    box-shadow: 0 0 0 1px #7fccde inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

.btn-3d.yellow {
    background-color: #f2c923;
    box-shadow: 0 0 0 1px #f2c923 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 8px 0 0 rgba(196, 172, 83, .7),
        0 8px 0 1px rgba(0, 0, 0, .4),
        0 8px 8px 1px rgba(0, 0, 0, 0.5);
}

.btn-3d.yellow:active {
    box-shadow: 0 0 0 1px #F0D264 inset,
        0 0 0 2px rgba(255, 255, 255, 0.15) inset,
        0 0 0 1px rgba(0, 0, 0, 0.4);
}

#footer {
    width: 100%;
    background: url(/images/footer.png)no-repeat right center;
    background-size: cover;
    font-size: 1em;
    margin-top: auto;

    position: absolute;
    left: 0;
    bottom: 0;
}

#footer .footer_inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

#footer .footer_inner .text {
    text-align: center;
    line-height: 5;
}

#footer .footer_inner .text span.top {
    font-size: 1.375em;
    color: #fff;
    font-weight: 700;
}

#footer .footer_inner .text span.bottom {
    font-size: 0.813em;
    color: #fff;
    font-weight: 200;
}

.title_background .title_background-inner{
	margin: 0 auto;
	max-width:var(--max-width);
}
.title_background .title{
	font-size:3.750em;
	font-weight:900;
	color:#fff;
    text-shadow: 3px 4px 5px rgba(0, 0, 0, .9);
}
.title_background .title_sub{
	width:100%;
	text-align:left;
	box-sizing: border-box;
	font-weight:700;
	color:#000;
}
.title_background .title_sub br.br1{
	display:none;
}
.title_background .title_sub .span{
	font-size:1.875em;
}
.title_background .title_sub .span1{
	position:relative;
	z-index:1;
}
.title_background .title_sub .span1::before{
	content:"";
	position:absolute;
	display:block;
	top:30%;
	left:0;
	width:100%;
	height:50%;
	background-color:#f2cb2c;
	z-index:-1;
}
.title_background .title_sub .span1_1{
	color:#f2cb2c;
}
.title_background .title_sub .span2{
	display:block;
	color:#666;
	font-size:1.250em;
	font-weight:500;
	padding: 20px 0 0;
	white-space: normal;
}


@media only screen and (max-width: 1200px) {

    #page2,
    #page3 .page3_inner .page3_title,
    #page4,
    #footer {
        font-size: 0.875em;
    }
}


@media only screen and (max-width: 740px) {

    #page2,
    #page3 .page3_inner .page3_title,
    #page4,
    #footer {
        font-size: 0.813em;
    }

    .title_background .title_sub{
      padding-left:0;
      padding-right:0;
    }
    .title_background .title_sub br.br1{
      display:inline;
    }
    .title_background .title_sub .span2 br{
      display:none;
    }
    .title_background .title_sub .span{
      font-size:20px;
    }
    .title_background .title_sub .span2{
      font-size: 18px;
    }
    .split{
      flex-direction: column;
    }
}