*, *::before, *::after { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

:root {
    --black: #0a0a0a;
    --white: #f5f5f3;
    --gray: #d8d8d4;
    --mid: #6b6b68;
    --accent: #0a0a0a;
}

html, body {
    width: 100%; 
    height: 100%;
    overflow: hidden;
    background: var(--white);
    font-family: 'DM Sans', sans-serif;
    cursor: none;
}

/* ── Custom Cursor ── */
#cur {
    position: fixed; top: 0; left: 0;
    width: 10px; height: 10px;
    background: var(--black);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width .2s, height .2s, background .2s;
    mix-blend-mode: multiply;
}
body.hovering #cur { 
    width: 48px; 
    height: 48px; 
    background: var(--black); 
}

/* ── Intro Overlay ── */
#intro {
    position: fixed; inset: 0;
    background: var(--black);
    z-index: 500;
    display: flex; align-items: center; justify-content: center;
    flex-direction: column; gap: 0;
}
#intro-name {
    font-family: 'Playfair Display', serif;
    font-size: clamp(4rem, 10vw, 9rem);
    font-weight: 900;
    font-style: italic;
    color: var(--white);
    letter-spacing: -.03em;
    overflow: hidden;
    line-height: 1;
}
#intro-name span {
    display: inline-block;
    transform: translateY(110%);
    animation: slideUp .9s cubic-bezier(.16,1,.3,1) .2s forwards;
}
#intro-sub {
    font-family: 'DM Mono', monospace;
    font-size: clamp(.65rem, 1.2vw, .85rem);
    color: rgba(245,245,243,.4);
    letter-spacing: .25em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeIn .6s ease 1s forwards;
    margin-top: .75rem;
}
#intro-line {
    width: 0; height: 1px;
    background: rgba(245,245,243,.2);
    margin-top: 2rem;
    animation: lineGrow .8s ease 1.4s forwards;
}
@keyframes slideUp { to { transform: translateY(0); } }
@keyframes fadeIn { to { opacity: 1; } }
@keyframes lineGrow { to { width: 120px; } }

/* ── Main Stage Container ── */
#stage {
    width: 100vw; height: 100vh;
    display: flex;
    opacity: 0;
    transition: opacity .6s ease;
}
#stage.visible { opacity: 1; }

/* ── Header ── */
#header {
    position: fixed; top: 0; left: 0; right: 0;
    padding: 1.5rem 2.5rem;
    display: flex; justify-content: space-between; align-items: center;
    z-index: 100;
    mix-blend-mode: multiply;
}
#header-logo {
    font-family: 'DM Mono', monospace;
    font-size: .75rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--black);
}
#header-year {
    font-family: 'DM Mono', monospace;
    font-size: .7rem;
    color: var(--mid);
    letter-spacing: .1em;
}

/* ── Panels (Desktop Baseline) ── */
.panel {
    flex: 1; height: 100vh;
    position: relative;
    overflow: hidden;
    cursor: none;
    transition: flex .65s cubic-bezier(.16,1,.3,1);
    border-right: 1px solid var(--gray);
}
.panel:last-child { border-right: none; }

.panel[data-i="0"] { background: #eeeeec; }
.panel[data-i="1"] { background: #e2e2e0; }
.panel[data-i="2"] { background: #d6d6d4; }
.panel[data-i="3"] { background: #eaeae8; }
.panel[data-i="4"] { background: #e8e8e6; }

#stage:not(.expanded) .panel:hover { flex: 2.2; }
#stage.expanded .panel { flex: 0.4; }
#stage.expanded .panel.active { flex: 5; }

/* Giant Background Typography */
.panel-letter {
    position: absolute;
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-style: italic;
    line-height: .85;
    color: var(--black);
    user-select: none; pointer-events: none;
    transition: transform .65s cubic-bezier(.16,1,.3,1), font-size .65s cubic-bezier(.16,1,.3,1), opacity .4s ease;
    white-space: nowrap;
}
.panel[data-i="0"] .panel-letter { font-size: 52vw; bottom: -8%; left: -20%; transform: rotate(-12deg); opacity: .07; }
.panel[data-i="1"] .panel-letter { font-size: 48vw; bottom: -5%; left: -15%; transform: rotate(-8deg);  opacity: .06; }
.panel[data-i="2"] .panel-letter { font-size: 55vw; bottom: -12%; left: -25%; transform: rotate(-15deg); opacity: .08; }
.panel[data-i="3"] .panel-letter { font-size: 50vw; bottom: -8%; left: -18%; transform: rotate(-10deg); opacity: .05; }
.panel[data-i="4"] .panel-letter { font-size: 46vw; bottom: -6%; left: -12%; transform: rotate(-6deg);  opacity: .06; }

.panel.active .panel-letter {
    font-size: 38vw; opacity: .03;
    transform: rotate(0deg) !important;
    left: -5% !important; bottom: -5% !important;
}

/* Label Strip Button */
.panel-label {
    position: absolute; bottom: 2rem; left: 50%;
    transform: translateX(-50%);
    display: flex; align-items: center; gap: .5rem;
    background: rgba(10,10,10,.04);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(10,10,10,.08);
    border-radius: 50px;
    padding: .4rem 1rem;
    white-space: nowrap;
    transition: opacity .3s, transform .3s;
}
.panel-label-icon { font-size: .85rem; }
.panel-label-text {
    font-family: 'DM Mono', monospace;
    font-size: .7rem; letter-spacing: .12em;
    text-transform: uppercase; color: var(--black);
}
#stage.expanded .panel:not(.active) .panel-label { 
    opacity: 0; 
    transform: translateX(-50%) translateY(8px); 
}

/* ── Content View Blocks ── */
.panel-content {
    position: absolute; inset: 0;
    padding: 6.5rem 3rem 4rem;
    opacity: 0; pointer-events: none;
    transition: opacity .4s ease .2s;
    display: flex; flex-direction: column;
    justify-content: flex-start; gap: 1.5rem;
    overflow-y: auto;
}
.panel.active .panel-content { opacity: 1; pointer-events: all; }

.content-eyebrow {
    font-family: 'DM Mono', monospace; font-size: .65rem;
    letter-spacing: .2em; text-transform: uppercase; color: var(--mid);
}
.content-title {
    font-family: 'Playfair Display', serif; font-weight: 900; font-style: italic;
    font-size: clamp(2.5rem, 4.5vw, 4rem); color: var(--black); line-height: 1.0;
}
.content-body {
    font-size: .95rem; line-height: 1.7; color: #2c2c2a;
    font-weight: 300; max-width: 520px;
}
.content-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag {
    background: var(--black); color: var(--white);
    padding: .3rem .85rem; border-radius: 50px;
    font-size: .72rem; font-family: 'DM Mono', monospace; letter-spacing: .06em;
}
.tag.outline { background: transparent; border: 1px solid var(--black); color: var(--black); }

/* ── Work Layout Items ── */
.content-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem; width: 100%; margin-top: 0.5rem;
}
.work-item {
    background: rgba(10,10,10,.03);
    border: 1px solid rgba(10,10,10,.07);
    border-radius: 14px; padding: 1.25rem;
    transition: background .2s, border-color .2s, transform .2s;
    text-decoration: none; color: inherit;
}
.work-item:hover {
    background: rgba(10,10,10,.06);
    border-color: rgba(10,10,10,.2);
    transform: translateY(-2px);
}
.work-item-cat {
    font-family: 'DM Mono', monospace; font-size: .62rem;
    letter-spacing: .12em; text-transform: uppercase; color: var(--mid);
    margin-bottom: .4rem;
}
.work-item-name {
    font-family: 'Playfair Display', serif; font-size: 1.15rem; font-weight: 900;
}

/* ── Project Showcase Overlay ── */
#project-viewer {
    position: fixed; inset: 0; background: var(--white);
    z-index: 300; opacity: 0; pointer-events: none;
    transform: translateY(30px);
    transition: opacity .5s cubic-bezier(.16,1,.3,1), transform .5s cubic-bezier(.16,1,.3,1);
    overflow-y: auto; padding: 7rem 4rem 5rem;
}
#project-viewer.visible { opacity: 1; pointer-events: all; transform: translateY(0); }

.viewer-header {
    max-width: 1100px; margin: 0 auto 3.5rem;
    display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
    border-bottom: 1px solid var(--gray); padding-bottom: 2.5rem;
}
.viewer-meta-box { display: flex; flex-direction: column; gap: 1.25rem; }
.meta-row h5 {
    font-family: 'DM Mono', monospace; font-size: .68rem;
    text-transform: uppercase; letter-spacing: .15em; color: var(--mid);
    margin-bottom: .3rem;
}
.meta-row p { font-size: .9rem; color: var(--black); font-weight: 400; }
.color-palette { display: flex; gap: .5rem; margin-top: .4rem; }
.color-swatch { width: 24px; height: 24px; border-radius: 50%; border: 1px solid rgba(0,0,0,0.1); }

.viewer-gallery {
    max-width: 1100px; margin: 0 auto;
    display: flex; flex-direction: column; gap: 2rem;
}

/* Styling for dynamically injected full-length website layouts */
/* ── 기존 이 부분의 스타일을 아래와 같이 정돈합니다 ── */
.viewer-gallery img {
    display: block;
    border-radius: 12px;
    border: 1px solid rgba(10, 10, 10, .05);
    box-shadow: 0 15px 35px rgba(0,0,0,0.03);
}

/* ── 일반 웹 스크린샷용 (기존 풀와이드 유지) ── */
.viewer-gallery .long-screenshot {
    width: 100%;
    height: auto;
    margin-bottom: 2.5rem; 
}

/* ── 🌟 GRAPHIC DESIGN 4열 그리드 레이아웃 설정 (웹 프로젝트엔 영향 없음) ── */
.viewer-gallery.graphic-layout {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important; /* 데스크탑 한줄에 4개 */
    gap: 1.25rem !important;
    flex-direction: unset !important; /* flex 해제 */
}

/* 5:4 비율 고정 및 정렬 */
.viewer-gallery.graphic-layout img,
.viewer-gallery.graphic-layout video {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 4 / 5 !important; /* 가로 5 : 세로 4 비율 */
    object-fit: cover !important;
    border-radius: 8px;
    margin-bottom: 0 !important;
}

/* 📱 모바일 반응형 오버라이드 */
@media (max-width: 768px) {
    /* 기존 모바일 미디어쿼리 하단에 아래 내용을 추가해 넣으시면 됩니다 */
    .viewer-gallery.graphic-layout {
        grid-template-columns: repeat(2, 1fr) !important; /* 모바일 한줄에 2개 */
        gap: 0.75rem !important;
    }
}

/* ── Navigation Buttons ── */
#close-project-btn {
    position: fixed; top: 1.5rem; right: 8.5rem;
    z-index: 350; background: transparent; color: var(--black);
    border: 1px solid var(--black); border-radius: 50px;
    padding: .5rem 1.25rem; font-family: 'DM Mono', monospace; font-size: .7rem;
    text-transform: uppercase; cursor: none; opacity: 0; pointer-events: none;
    transition: opacity .3s, background .2s, color .2s;
}
#close-project-btn.visible { opacity: 1; pointer-events: all; }
#close-project-btn:hover { background: var(--black); color: var(--white); }

#back-btn {
    position: fixed; top: 1.5rem; right: 2.5rem; z-index: 200;
    background: var(--black); color: var(--white); border: none; border-radius: 50px;
    padding: .5rem 1.25rem; font-family: 'DM Mono', monospace; font-size: .7rem;
    letter-spacing: .1em; text-transform: uppercase; cursor: none;
    opacity: 0; pointer-events: none; transition: opacity .3s;
}
#back-btn.visible { opacity: 1; pointer-events: all; }

/* ── Skill Matrix ── */
.skill-row { display: flex; align-items: center; gap: 1rem; border-bottom: 1px solid rgba(10,10,10,.08); padding: .85rem 0; max-width: 600px; }
.skill-name { font-size: .9rem; font-weight: 400; flex: 1; }
.skill-bar-wrap { flex: 2; height: 2px; background: rgba(10,10,10,.08); border-radius: 2px; overflow: hidden; }
.skill-bar { height: 100%; background: var(--black); transform-origin: left; transform: scaleX(0); transition: transform 1.2s cubic-bezier(.16,1,.3,1); }
.panel.active .skill-bar { transform: scaleX(1); }

.contact-links { display: flex; flex-direction: column; gap: .65rem; max-width: 500px; }
.contact-link {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.1rem 1.25rem; border: 1px solid rgba(10,10,10,.12); border-radius: 14px;
    text-decoration: none; color: var(--black); font-size: .9rem; transition: background .2s, color .2s;
}
.contact-link:hover { background: var(--black); color: var(--white); }
.contact-link span { font-family: 'DM Mono', monospace; font-size: .7rem; color: var(--mid); }
.contact-link:hover span { color: rgba(245,245,243,.6); }

.resume-entry { margin-bottom: 1.5rem; max-width: 600px; }
.resume-period { font-family: 'DM Mono', monospace; font-size: .65rem; letter-spacing: .12em; color: var(--mid); text-transform: uppercase; }
.resume-role { font-size: 1rem; font-weight: 500; margin-top: .2rem; }
.resume-org { font-size: .85rem; color: var(--mid); font-weight: 300; }

.panel { clip-path: inset(0 0 100% 0); }
.panel.entered { clip-path: inset(0 0 0% 0); transition: clip-path .7s cubic-bezier(.16,1,.3,1), flex .65s cubic-bezier(.16,1,.3,1); }


/* 📱 ───────────────────────────────
   MOBILE RESPONSIVE OVERRIDES
   ────────────────────────────────── */
@media (max-width: 768px) {
    html, body {
        cursor: auto;
    }
    #cur {
        display: none !important;
    }
    
    #stage {
        flex-direction: column;
    }
    
    .panel {
        width: 100vw;
        height: 20vh;
        border-right: none;
        border-bottom: 1px solid var(--gray);
        transition: flex .5s cubic-bezier(.16,1,.3,1), height .5s cubic-bezier(.16,1,.3,1);
    }
    .panel:last-child { border-bottom: none; }
    
    #stage:not(.expanded) .panel:hover { flex: 1; }
    #stage.expanded .panel { flex: 0.2; }
    #stage.expanded .panel.active { flex: 6; }
    
    .panel[data-i="0"] .panel-letter { font-size: 60vh; bottom: -20%; left: -10%; }
    .panel[data-i="1"] .panel-letter { font-size: 55vh; bottom: -15%; left: -5%; }
    .panel[data-i="2"] .panel-letter { font-size: 65vh; bottom: -25%; left: -15%; }
    .panel[data-i="3"] .panel-letter { font-size: 60vh; bottom: -20%; left: -8%; }
    .panel[data-i="4"] .panel-letter { font-size: 52vh; bottom: -12%; left: -5%; }
    
    .panel.active .panel-letter {
        font-size: 45vh; opacity: .02;
    }

    .panel-content {
        padding: 6.5rem 1.5rem 3rem;
    }
    
    .viewer-header {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 🌟 NEW: Graphic 전용 모바일 2열 정렬 오버라이드 */
    .viewer-gallery.graphic-layout {
        grid-template-columns: repeat(2, 1fr); /* 모바일 기준 한 줄에 2개 */
        gap: 0.75rem;
    }
    
    #back-btn { right: 1.5rem; }
    #close-project-btn { right: 7.5rem; }
}