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

:root {
    --clr-bg: #f0f4f8;
    --clr-surface: #ffffff;
    --clr-surface2: #f8fafc;
    --clr-border: #e2e8f0;
    --clr-border2: #cbd5e1;

    --clr-primary: #2563eb;
    --clr-primary-l: #dbeafe;
    --clr-primary-d: #1d4ed8;

    --clr-teal: #0891b2;
    --clr-teal-l: #cffafe;
    --clr-green: #059669;
    --clr-green-l: #d1fae5;

    --clr-text: #0f172a;
    --clr-text-2: #334155;
    --clr-text-3: #64748b;
    --clr-text-4: #94a3b8;

    --clr-accent: #7c3aed;
    --clr-accent-l: #ede9fe;

    --font-base: 16px;

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.06), 0 2px 10px rgba(15, 23, 42, 0.05);
    --shadow: 0 4px 20px rgba(15, 23, 42, 0.08), 0 1px 4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12), 0 2px 8px rgba(15, 23, 42, 0.05);
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-base);
}

body {
    font-family: 'Inter', 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
    font-size: 1em;
    line-height: 1.7;
    color: var(--clr-text);
    background: var(--clr-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════════
    SCROLL PROGRESS BAR
═══════════════════════════════════════════════════════ */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-teal), var(--clr-green));
    z-index: 9999;
    transition: width 0.1s linear;
}

/* ═══════════════════════════════════════════════════════
    NAVBAR
═══════════════════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 3.5em;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2em;
    transition: box-shadow 0.3s;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-brand {
    font-size: 0.9375em;
    font-weight: 800;
    letter-spacing: -0.03em;
    /* color: var(--clr-primary); */
    white-space: nowrap;
}

/* .nav-brand .eng {
    color: #000;
} */

.nav-links {
    display: flex;
    gap: 1.5em;
    list-style: none;
}

.nav-links a {
    font-size: 0.875em;
    font-weight: 500;
    color: var(--clr-text-3);
    text-decoration: none;
    transition: color 0.2s;
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--clr-primary);
}

/* ═══════════════════════════════════════════════════════
    PAGE WRAPPER
═══════════════════════════════════════════════════════ */
.page {
    padding-top: 3.5em;
}

.container {
    max-width: 72em;
    margin: 0 auto;
    padding: 0 1.5em;
}

/* ═══════════════════════════════════════════════════════
    HERO SECTION
    배경이미지 ① — 서울 도시 이미지 (opacity:1 + 오버레이 + Ken Burns)
    교체 방법: .hero-bg-image 의 background-image URL을 변경
═══════════════════════════════════════════════════════ */
.hero {
    background: #0c1a30;
    /* 이미지 로드 전 fallback 색상 */
    border-bottom: 1px solid var(--clr-border);
    padding: 5em 0 4em;
    position: relative;
    overflow: hidden;
}

/* ▼ 배경이미지 레이어 ① — opacity: 1 (완전 불투명)
    이미지 교체: background-image 의 url() 값을 원하는 이미지 경로로 변경 */
.hero-bg-image {
    position: absolute;
    inset: 0;
    /* background-image: url('https://images.unsplash.com/photo-1549317661-bd32c8ce0db2?auto=format&fit=crop&w=1920&q=80'); */
    background-image: url('img/background.jpeg');
    background-size: cover;
    background-position: center center;
    background-attachment: scroll;
    /* 블러효과 */
    filter: blur(3px);

    opacity: 1;
    /* ← 완전 불투명 */
    z-index: 0;
    animation: hero-kenburns 24s ease-in-out infinite alternate;
    will-change: transform;
}

@keyframes hero-kenburns {
    from {
        transform: scale(1.00) translate(0, 0);
    }

    to {
        transform: scale(1.10) translate(-1.5%, 1%);
    }
}

/* ▼ 오버레이 레이어 — 이미지 위에 반투명 그라디언트를 덮어 텍스트 가독성 확보 */
.hero-bg-overlay {
    position: absolute;
    inset: 0;
    /* 좌→우: 짙은 남색 → 중간 → 파란 청록 계열
    그라디언트 방향·색상·불투명도를 조절해 텍스트 배치에 맞게 변경 가능 */
    /* background: linear-gradient(105deg,
            rgba(10, 20, 50, 0.82) 0%,
            rgba(10, 30, 65, 0.74) 45%,
            rgba(5, 45, 75, 0.60) 100%); */
    z-index: 1;
}

/* 기존 장식 그라디언트 — 오버레이 위에 은은하게 */
.hero::before {
    content: '';
    position: absolute;
    top: -8em;
    right: -8em;
    width: 36em;
    height: 36em;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.25) 0%, transparent 65%);
    pointer-events: none;
    z-index: 2;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -6em;
    left: -6em;
    width: 28em;
    height: 28em;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.18) 0%, transparent 65%);
    pointer-events: none;
    z-index: 2;
}

.hero-inner {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 4em;
    flex-wrap: wrap;
}

/* ── Photo ── */
.hero-photo-area {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1em;
    opacity: 0;
    transform: scale(0.82) translateY(1em);
    animation: photo-enter 0.9s 0.15s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes photo-enter {
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.photo-frame {
    position: relative;
    width: 13em;
    height: 13em;
}

.photo-ring-outer {
    position: absolute;
    inset: -0.75em;
    border-radius: 50%;
    /* background: conic-gradient(var(--clr-primary) 0deg,
            var(--clr-teal) 90deg,
            var(--clr-green) 180deg,
            var(--clr-accent) 270deg,
            var(--clr-primary) 360deg); */
    animation: ring-spin 8s linear infinite;
    opacity: 0.85;
}

@keyframes ring-spin {
    to {
        transform: rotate(360deg);
    }
}

.photo-ring-gap {
    position: absolute;
    inset: -0.3em;
    border-radius: 50%;
    /* 어두운 배경에서 흰색 gap이 사진 테두리를 더 강조 — 유지 */
    background: rgba(255, 255, 255, 0.95);
}

.photo-avatar {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #e0f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg), 0 0 0 4px var(--clr-surface), 0 0 40px rgba(37, 99, 235, 0.15);
    overflow: hidden;
}

.photo-initials {
    font-size: 2.5em;
    font-weight: 900;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    user-select: none;
    line-height: 1;
}

.photo-glow {
    position: absolute;
    inset: -1.5em;
    z-index: 0;
    border-radius: 50%;
    /* 어두운 배경 위에서 글로우 강도 ↑ */
    background: radial-gradient(circle, rgba(96, 165, 250, 0.45) 0%, transparent 65%);
    animation: glow-pulse 3s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
    from {
        transform: scale(0.92);
        opacity: 0.7;
    }

    to {
        transform: scale(1.08);
        opacity: 1.0;
    }
}

.photo-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-teal));
    color: #fff;
    font-size: 0.875em;
    font-weight: 700;
    padding: 0.4em 1em;
    border-radius: 2em;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    letter-spacing: 0.02em;
}

/* ── Hero Text ── */
.hero-text {
    flex: 1;
    min-width: 18em;
    opacity: 0;
    transform: translateX(2em);
    animation: text-enter 0.8s 0.35s ease forwards;
}

@keyframes text-enter {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ── Hero 텍스트 — 어두운 배경 위 흰색 계열로 변경 ── */
.hero-name-en {
    font-size: 0.875em;
    font-weight: 600;
    letter-spacing: 0.2em;
    /* color: rgba(33, 158, 248, 1); */
    color: rgb(165, 65, 202);
    /* 흰색 60% */
    text-transform: uppercase;
    margin-bottom: 0.4em;
}

.hero-name-kr {
    font-size: 3.25em;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    color: #ffffff;
    /* 다중 그림자: 가까운 진한 그림자 + 먼 부드러운 글로우 */
    text-shadow:
        0 1px 3px rgba(0, 0, 0, 0.55),
        0 4px 16px rgba(0, 0, 0, 0.40),
        0 0 40px rgba(59, 130, 246, 0.30);
    margin-bottom: 0.3em;
}

.hero-title {
    font-size: 1.375em;
    font-weight: 800;
    color: rgb(15, 63, 121);
    text-shadow: 0 1px 0 #fff;
    /* sky-300 — 어두운 배경에서 밝고 선명 */
    letter-spacing: -0.02em;
    margin-bottom: 0.25em;
}

.hero-specialist {
    font-size: 1em;
    font-weight: 500;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0 1px 0 #000;
    margin-bottom: 0.15em;
}

.hero-sub {
    font-size: 0.9375em;
    color: rgba(255, 255, 255, 1);
    margin-bottom: 1.5em;
    display: block;
    text-shadow: 0 1px 0px rgba(0, 0, 0, 0.5);
}

a.hero-sub {
    text-decoration: underline;
}

a.hero-sub:hover {
    color: rgba(255, 255, 255, 1);
}

.hero-sub.no-margin {
    margin-bottom: 0;
}

/* 인용 박스 — Glassmorphism 스타일 */
.hero-quote {
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-left: 4px solid #3475c6;
    /* blue-400 */
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    border-right: 1px solid rgba(255, 255, 255, 0.10);
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 1.25em 1.5em;
    font-size: 1em;
    color: rgba(255, 255, 255, 1);
    line-height: 1.85;
    position: relative;
}

.hero-quote::before {
    content: '"';
    font-size: 3em;
    font-weight: 900;
    color: rgba(147, 197, 253, 0.35);
    /* sky-300 연하게 */
    position: absolute;
    top: -0.2em;
    left: 0.3em;
    line-height: 1;
    pointer-events: none;
}

/* Scroll indicator */
.scroll-hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4em;
    margin-top: 3em;
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.875em;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    animation: hint-bounce 2.5s ease-in-out infinite;
    position: relative;
    z-index: 3;
}

.scroll-hint-line {
    width: 1px;
    height: 2.5em;
    background: linear-gradient(to bottom, rgba(147, 197, 253, 0.8), transparent);
}

@keyframes hint-bounce {

    0%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    50% {
        transform: translateY(6px);
        opacity: 0.9;
    }
}

/* ═══════════════════════════════════════════════════════
    PARALLAX BANNER
    배경이미지 ② ③ — 섹션 사이 전폭 배너
    교체 방법: data-bg 속성의 URL을 원하는 이미지 경로로 변경하세요
    (JS가 data-bg 값을 background-image로 적용합니다)
═══════════════════════════════════════════════════════ */
.parallax-banner {
    position: relative;
    height: 17em;
    /* 높이 조절 가능 */
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.parallax-bg {
    position: absolute;
    inset: -20%;
    /* parallax 여유 공간 */
    background-size: cover;
    background-position: center;
    will-change: transform;
    transition: none;
}

/* 파란 그라디언트 오버레이 */
.parallax-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(37, 99, 235, 0.82) 0%,
            rgba(8, 145, 178, 0.78) 50%,
            rgba(5, 150, 105, 0.72) 100%);
    z-index: 1;
}

/* 배너 안 텍스트 */
.parallax-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 1.5em;
}

.parallax-content-label {
    font-size: 0.875em;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.75;
    margin-bottom: 0.5em;
}

.parallax-content-title {
    font-size: 1.75em;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 0.6em;
}

.parallax-content-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5em;
}

.parallax-pill {
    font-size: 0.875em;
    font-weight: 600;
    padding: 0.3em 0.9em;
    border-radius: 2em;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(4px);
    letter-spacing: 0.03em;
}

/* 배너 진입 애니메이션 */
.parallax-content {
    opacity: 0;
    transform: translateY(1.5em);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.parallax-banner.in-view .parallax-content {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════
    SECTION COMMONS
═══════════════════════════════════════════════════════ */
.section {
    padding: 5em 0;
    border-bottom: 1px solid var(--clr-border);
}

.section:last-of-type {
    border-bottom: none;
}

.section-alt {
    background: var(--clr-surface);
}

.section-header {
    margin-bottom: 2.5em;
}

.section-eyebrow {
    font-size: 0.875em;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--clr-primary);
    margin-bottom: 0.5em;
}

.section-title {
    font-size: 1.75em;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--clr-text);
    line-height: 1.2;
    margin-bottom: 0.5em;
}

.section-divider {
    width: 3em;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-teal));
}

/* ═══════════════════════════════════════════════════════
    EXPERTISE CARDS GRID    (1️⃣ ~ 8️⃣)
═══════════════════════════════════════════════════════ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(20em, 1fr));
    gap: 1.25em;
}

.exp-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.75em;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    /* scroll-reveal */
    opacity: 0;
    transform: translateY(2em);
    transition: opacity 0.55s ease, transform 0.55s ease,
        box-shadow 0.35s ease, border-color 0.35s ease;
}

.exp-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* 상단 컬러 바 */
.exp-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-teal));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s 0.2s ease;
    border-radius: var(--radius) var(--radius) 0 0;
}

.exp-card.in-view::before {
    transform: scaleX(1);
}

.exp-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-primary);
}

/* Card stagger delays */
.exp-card:nth-child(1) {
    transition-delay: 0.04s;
}

.exp-card:nth-child(2) {
    transition-delay: 0.10s;
}

.exp-card:nth-child(3) {
    transition-delay: 0.16s;
}

.exp-card:nth-child(4) {
    transition-delay: 0.22s;
}

.exp-card:nth-child(5) {
    transition-delay: 0.28s;
}

.exp-card:nth-child(6) {
    transition-delay: 0.34s;
}

.exp-card:nth-child(7) {
    transition-delay: 0.40s;
}

.exp-card:nth-child(8) {
    transition-delay: 0.46s;
}

.card-number-row {
    display: flex;
    align-items: center;
    gap: 0.6em;
    margin-bottom: 0.75em;
}

.card-num-badge {
    font-size: 0.875em;
    font-weight: 700;
    color: var(--clr-primary);
    background: var(--clr-primary-l);
    padding: 0.2em 0.65em;
    border-radius: 2em;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.card-h2 {
    font-size: 1.0625em;
    font-weight: 800;
    color: var(--clr-text);
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 0.75em;
}

.card-bold-line {
    font-size: 0.9375em;
    font-weight: 700;
    color: var(--clr-text-2);
    margin-bottom: 0.35em;
    line-height: 1.5;
}

.card-bold-line+.card-bold-line {
    margin-top: -0.1em;
}

.card-italic-line {
    font-size: 0.9375em;
    font-weight: 600;
    font-style: italic;
    color: var(--clr-teal);
    margin-bottom: 0.35em;
}

.card-list {
    margin-top: 0.75em;
    padding-left: 1.1em;
    list-style: none;
}

.card-list li {
    font-size: 0.9375em;
    color: var(--clr-text-2);
    line-height: 1.65;
    margin-bottom: 0.3em;
    padding-left: 1.1em;
    position: relative;
}

.card-list li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--clr-primary);
    font-weight: 700;
}

/* ═══════════════════════════════════════════════════════
    RESEARCH INTERESTS
═══════════════════════════════════════════════════════ */
.research-list {
    display: flex;
    flex-direction: column;
    gap: 1em;
}

.research-item {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-left: 4px solid var(--clr-teal);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 1.1em 1.5em;
    font-size: 1em;
    color: var(--clr-text-2);
    line-height: 1.7;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateX(-1.5em);
    transition: opacity 0.55s ease, transform 0.55s ease,
        box-shadow 0.3s, border-color 0.3s;
}

.research-item.in-view {
    opacity: 1;
    transform: translateX(0);
}

.research-item:hover {
    transform: translateX(4px) !important;
    box-shadow: var(--shadow);
    border-left-color: var(--clr-primary);
}

.research-item:nth-child(1) {
    transition-delay: 0.05s;
}

.research-item:nth-child(2) {
    transition-delay: 0.15s;
}

.research-item:nth-child(3) {
    transition-delay: 0.25s;
}

/* ═══════════════════════════════════════════════════════
    METHODOLOGICAL KEYWORDS
═══════════════════════════════════════════════════════ */
.keywords-list-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.75em;
}

.keyword-item {
    display: flex;
    align-items: center;
    gap: 1em;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1em 1.5em;
    font-size: 1em;
    color: var(--clr-text-2);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(1.2em);
    transition: opacity 0.5s ease, transform 0.5s ease,
        box-shadow 0.3s, border-color 0.3s;
}

.keyword-item.in-view {
    opacity: 1;
    transform: translateY(0);
}

.keyword-item:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--shadow);
    border-color: var(--clr-accent);
}

.keyword-item:nth-child(1) {
    transition-delay: 0.04s;
}

.keyword-item:nth-child(2) {
    transition-delay: 0.10s;
}

.keyword-item:nth-child(3) {
    transition-delay: 0.16s;
}

.keyword-item:nth-child(4) {
    transition-delay: 0.22s;
}

.keyword-item:nth-child(5) {
    transition-delay: 0.28s;
}

.keyword-item:nth-child(6) {
    transition-delay: 0.34s;
}

.keyword-dot {
    width: 0.625em;
    height: 0.625em;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-teal));
    flex-shrink: 0;
}

.keyword-num {
    font-size: 0.875em;
    font-weight: 700;
    color: var(--clr-text-4);
    min-width: 1.4em;
}

/* ═══════════════════════════════════════════════════════
    FUTURE RESEARCH DIRECTIONS
═══════════════════════════════════════════════════════ */
.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(20em, 1fr));
    gap: 1.25em;
}

.future-card {
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdfa 100%);
    border: 1px solid var(--clr-primary-l);
    border-radius: var(--radius);
    padding: 1.75em;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(2em);
    transition: opacity 0.55s ease, transform 0.55s ease, box-shadow 0.35s;
}

.future-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

.future-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-lg);
}

.future-card:nth-child(1) {
    transition-delay: 0.05s;
}

.future-card:nth-child(2) {
    transition-delay: 0.15s;
}

.future-card:nth-child(3) {
    transition-delay: 0.25s;
}

.future-card-icon {
    font-size: 1.75em;
    margin-bottom: 0.6em;
    line-height: 1;
}

.future-card-text {
    font-size: 1em;
    font-weight: 600;
    color: var(--clr-text-2);
    line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════
    FOOTER
═══════════════════════════════════════════════════════ */
.footer {
    background: var(--clr-text);
    color: rgba(255, 255, 255, 0.6);
    padding: 3em 0;
    text-align: center;
}

.footer-name {
    font-size: 1.375em;
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 0.3em;
}

.footer-sub {
    font-size: 0.875em;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.5em;
    display: block;
    color: rgba(255, 255, 255, 0.45);
}

.footer-sub.no-margin {
    margin-bottom: 0.5em;
}

a.footer-sub {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: underline;
    transition: color 0.2s;
}

a.footer-sub:hover {
    color: rgba(255, 255, 255, 1);
}

.footer-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6em;
    margin-bottom: 1.75em;
}

.footer-tag {
    font-size: 0.875em;
    padding: 0.35em 0.85em;
    border-radius: 2em;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.06);
}

.footer-copy {
    font-size: 0.875em;
    color: rgba(255, 255, 255, 0.25);
}

/* ═══════════════════════════════════════════════════════
    SCROLL REVEAL — base
═══════════════════════════════════════════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(1.75em);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════
    RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 860px) {
    :root {
        --font-base: 14px;
    }

    .hero-inner {
        gap: 2.5em;
        justify-content: center;
        text-align: center;
        flex-direction: column;
    }

    .nav-links {
        display: none;
    }

    .hero-text {
        min-width: unset;
    }

    .hero-quote::before {
        display: none;
    }

    .hero-name-kr {
        font-size: 2.5em;
    }

    .hero-title {
        font-size: 1.125em;
    }

    .photo-frame {
        width: 10em;
        height: 10em;
    }

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

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

    .navbar {
        padding: 0 1em;
    }

    .nav-links {
        gap: 1em;
    }

    .nav-links a {
        font-size: 0.875em;
    }

    .section {
        padding: 3.5em 0;
    }

    .nav-links li:nth-child(n+3) {
        display: none;
    }

    .parallax-banner {
        height: 14em;
    }

    .parallax-content-title {
        font-size: 1.25em;
    }

    .card-list {
        padding-left: 0em;
    }

    /* mobile: background-attachment fixed 미지원 대응 */
    .parallax-bg {
        background-attachment: scroll;
        position: absolute;
        inset: 0;
    }
}