/* 📚 학습포인트: CSS 변수로 색상 관리 (한 곳에서 전체 색상 제어) */
:root {
    /* 골드 & 블랙 팔레트 */
    --primary-color: #D4AF37;
    --secondary-color: #F4E3A0;
    --accent-color: rgba(212, 175, 55, 0.25);
    --peach-color: rgba(212, 175, 55, 0.12);
    --blue-color: rgba(0, 0, 0, 0.8);
    --yellow-color: #D4AF37;
    
    /* 텍스트 색상 */
    --text-primary: #F5F5F5;
    --text-secondary: #C9BA86;
    --text-light: #8C8C8C;
    
    /* 배경 색상 */
    --bg-white: #0E0E0E;
    --bg-light: #151515;
    --bg-gray: #222222;
    
    /* 그라데이션 */
    --gradient-primary: linear-gradient(135deg, #D4AF37 0%, #F4E3A0 100%);
    --gradient-accent: linear-gradient(135deg, rgba(212, 175, 55, 0.5) 0%, rgba(0, 0, 0, 0.85) 100%);
    
    /* 그림자 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* 폰트 */
    --font-sans: 'Noto Sans KR', 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transition */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* 📚 학습포인트: 리셋 CSS - 브라우저 기본 스타일 제거 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: auto;
}

/* 📚 학습포인트: 컨테이너 - 콘텐츠 너비 제한 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 📚 학습포인트: 섹션 공통 스타일 */
section {
    padding: var(--spacing-2xl) 0;
    overflow: visible;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* 📚 학습포인트: 버튼 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.2;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    /* 완전히 고정된 크기 */
    min-width: 250px;
    max-width: 250px;
    width: 250px;
    min-height: 52px;
    max-height: 52px;
    height: 52px;
    flex-shrink: 0;
    box-sizing: border-box;
    /* 텍스트 한 줄 고정 */
    white-space: nowrap;
    /* transition */
    transition: box-shadow 0.2s ease;
    /* a 태그 기본 스타일 제거 */
    outline: none;
}

/* 버튼에 가상 요소 제거 */
.btn::before,
.btn::after {
    content: none;
    display: none;
}

/* 버튼 내부 콘텐츠 */
.btn > span {
    white-space: nowrap;
    flex-shrink: 0;
}

/* Font Awesome 아이콘 완전 고정 */
.btn > i {
    white-space: nowrap;
    flex-shrink: 0;
    display: inline-block;
    width: auto;
    height: auto;
    font-size: 1rem;
    line-height: 1;
    vertical-align: middle;
}

/* 아이콘의 ::before 고정 (Font Awesome) */
.btn > i::before {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
}

/* 모든 상태에서 동일한 스타일 적용 */
.btn-primary,
.btn-primary:link,
.btn-primary:visited,
.btn-primary:focus {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:active {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* 모든 상태에서 동일한 스타일 적용 */
.btn-secondary,
.btn-secondary:link,
.btn-secondary:visited,
.btn-secondary:focus {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: #111111;
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:active {
    background: var(--primary-color);
    color: #111111;
    border: 2px solid var(--primary-color);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* ======================================
   네비게이션 바
   ====================================== */

/* 📚 학습포인트: position: fixed로 상단에 고정 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    backdrop-filter: none;
    box-shadow: none;
    z-index: var(--z-fixed);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    position: relative;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all var(--transition-base);
    filter: drop-shadow(0 1px 2px rgba(212, 175, 55, 0.35));
}

.logo:hover {
    transform: scale(1.05);
}

/* 📚 학습포인트: 스크롤 진행도 표시 */
.scroll-indicator {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: width var(--transition-fast);
    border-radius: 0 3px 3px 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: color var(--transition-base);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* 📚 학습포인트: 다크모드 토글 버튼 */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--bg-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    position: relative;
}

.theme-toggle i {
    position: absolute;
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.theme-toggle .fa-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.theme-toggle .fa-moon {
    opacity: 0;
    transform: rotate(180deg) scale(0);
}

.theme-toggle:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

/* 📚 학습포인트: 햄버거 메뉴 (모바일) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    /* 고정된 크기 */
    width: 35px;
    height: 35px;
    justify-content: center;
    align-items: center;
    /* 클릭 모션 transition */
    transition: transform 0.1s ease;
}

.hamburger:active {
    /* 눌리는 모션 */
    transform: scale(0.92) translateY(1px);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ======================================
   히어로 섹션
   ====================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

/* 📚 학습포인트: 가을 나무 배경 이미지 */
.hero-autumn-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://www.genspark.ai/api/files/s/pv4KajEF');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    opacity: 0.3;
    filter: blur(2px);
}

/* 📚 학습포인트: Three.js 3D Canvas */
.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    /* 마우스 인터랙션을 위해 pointer-events 활성화 필요할 수 있음 */
    /* pointer-events: none; -> 제거 */
    display: block; /* 3D 캔버스 활성화 */
}

.hero .container {
    position: relative;
    z-index: 20;
}

/* 📚 학습포인트: 히어로 3D 오브제 이미지 (왼쪽 배치) */
.hero-object {
    position: absolute;
    left: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 15;
    pointer-events: none;
    opacity: 1;
    animation: fadeInObject 1.5s ease-out 0.3s forwards;
}

.hero-object-img {
    width: auto;
    height: 55vh;
    max-height: 600px;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(212, 175, 55, 0.3));
    animation: floatObject 6s ease-in-out infinite;
}

@keyframes fadeInObject {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

@keyframes floatObject {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(-2deg);
    }
}

/* 📚 학습포인트: 패럴랙스 배경 */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.05;
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    top: -300px;
    right: -200px;
    animation: float 20s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--peach-color) 0%, transparent 70%);
    bottom: -250px;
    left: -150px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    /* 버튼이 컨테이너를 넘어가지 않도록 */
    align-items: center;
}

/* 📚 학습포인트: 스크롤 다운 인디케이터 */
.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    animation: bounce 2s ease-in-out infinite;
    z-index: 20;
    /* 모바일에서 클릭 가능 영역 확보 */
    padding: 1rem;
    cursor: pointer;
}

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

/* ======================================
   소셜 프루프 섹션
   ====================================== */

.social-proof {
    background: var(--bg-light);
    padding: var(--spacing-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ======================================
   프로젝트 갤러리
   ====================================== */

.projects,
.homepage-design,
.marketing {
    background: var(--bg-white);
}

.homepage-design {
    background: var(--bg-light);
}

/* 📚 학습포인트: 필터 버튼 */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.5rem;
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    /* 고정된 최소 크기 */
    min-width: 100px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    /* 클릭 모션 transition */
    transition: transform 0.1s ease, background 0.15s ease, color 0.15s ease;
}

.filter-btn:hover {
    background: var(--bg-gray);
    color: var(--text-primary);
}

.filter-btn:active {
    /* 눌리는 모션 */
    transform: scale(0.96) translateY(1px);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-color: transparent;
}

/* 📚 학습포인트: CSS Grid - 카드 레이아웃 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: visible;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    will-change: transform;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* 📚 학습포인트: 카드 이미지 슬라이더 */
.project-slider {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.slider-track {
    display: flex;
    transition: transform var(--transition-base);
    height: 100%;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    flex-shrink: 0;
}

/* 📚 학습포인트: 프로젝트 비디오 컨테이너 */
.project-video-container {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: var(--bg-gray);
}

.project-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    /* 고정된 크기 */
    width: 36px;
    height: 36px;
    background: rgba(8, 8, 8, 0.75);
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    opacity: 0;
    /* 클릭 모션 transition */
    transition: opacity 0.3s ease, transform 0.1s ease, background 0.15s ease;
    z-index: 10;
}

.project-card:hover .slider-btn {
    opacity: 1;
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}

.slider-btn:hover {
    background: var(--primary-color);
    color: #111111;
}

.slider-btn:active {
    /* 눌리는 모션 - 위치 유지하면서 작아짐 */
    transform: translateY(-50%) scale(0.92);
}

.slider-dots {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.25);
    cursor: pointer;
    transition: all var(--transition-base);
}

.slider-dot.active {
    background: var(--primary-color);
    width: 24px;
    border-radius: 4px;
}

.project-content {
    padding: var(--spacing-lg);
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.project-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.2;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    /* 완전히 고정된 크기 (CTA 버튼과 동일) */
    min-width: 250px;
    max-width: 250px;
    width: 250px;
    min-height: 52px;
    max-height: 52px;
    height: 52px;
    flex-shrink: 0;
    box-sizing: border-box;
    /* 텍스트 한 줄 고정 */
    white-space: nowrap;
    /* transition - 클릭 모션 포함 */
    transition: box-shadow 0.2s ease, transform 0.1s ease;
}

/* 버튼에 가상 요소 제거 */
.project-btn::before,
.project-btn::after {
    content: none;
    display: none;
}

/* 버튼 내부 콘텐츠 */
.project-btn > span {
    white-space: nowrap;
    flex-shrink: 0;
}

/* Font Awesome 아이콘 완전 고정 */
.project-btn > i {
    white-space: nowrap;
    flex-shrink: 0;
    display: inline-block;
    width: auto;
    height: auto;
    font-size: 1rem;
    line-height: 1;
    vertical-align: middle;
}

/* 아이콘의 ::before 고정 (Font Awesome) */
.project-btn > i::before {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
}

/* 모든 상태에서 동일한 스타일 적용 (CTA 버튼과 동일) */
.project-btn,
.project-btn:link,
.project-btn:visited,
.project-btn:focus {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.project-btn:hover {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.project-btn:active {
    background: var(--gradient-primary);
    color: #111111;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    /* 클릭 시 눌리는 모션 */
    transform: scale(0.96) translateY(1px);
}

/* 프로젝트 카드 필터 애니메이션 */
.project-card.hide {
    animation: fadeOut 0.3s ease forwards;
}

.project-card.show {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ======================================
   스킬 섹션
   ====================================== */

.skills {
    background: transparent; /* 배경색 제거 */
}

.skills-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

@media (min-width: 1024px) {
    .skills-layout {
        flex-direction: row;
        justify-content: center;
        align-items: stretch;
    }
}

.skills-orbit-wrapper,
.skills-orbit-wrapper * {
    box-sizing: border-box;
}

.skills-orbit-wrapper {
    position: relative;
    width: min(92vw, 520px);
    height: min(92vw, 520px);
    max-width: 520px;
    max-height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 0 !important;
    outline: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    overflow: visible;
}

.skills-orbit-wrapper::before,
.skills-orbit-wrapper::after {
    content: none !important;
    display: none !important;
}

.skills-orbit-wrapper.revealed {
    border: 0 !important;
    outline: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.skills-orbit-wrapper::before {
    content: none;
}

.skills-orbit {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(255, 221, 152, 0.28) 0%, rgba(20, 14, 6, 0.92) 55%, rgba(6, 6, 6, 0.98) 100%);
    border: 1px solid rgba(212, 175, 55, 0.35);
    box-shadow: 0 35px 80px rgba(0, 0, 0, 0.55);
    overflow: visible;
}

.skills-orbit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 110%;
    height: 110%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.3) 0%, rgba(212, 175, 55, 0) 65%);
    opacity: 0.5;
    filter: blur(20px);
    pointer-events: none;
}

.skills-orbit::after {
    content: none;
}

.skill-bubble {
    position: absolute;
    width: clamp(56px, 7vw, 78px);
    height: clamp(56px, 7vw, 78px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    text-transform: capitalize;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.45), inset 0 3px 8px rgba(255, 255, 255, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.12);
    transition: transform var(--transition-base), box-shadow var(--transition-base), z-index var(--transition-base), opacity var(--transition-base);
    cursor: pointer;
    backdrop-filter: blur(2px);
    overflow: hidden;
    opacity: 0;
    transform: scale(0.82);
    z-index: 1;
}

.skill-bubble[data-level="high"] {
    box-shadow: 0 16px 32px rgba(212, 175, 55, 0.42), inset 0 4px 12px rgba(255, 255, 255, 0.55);
    border-color: rgba(212, 175, 55, 0.62);
}

.skill-bubble.is-ready {
    opacity: 1;
    transform: scale(1);
}

.skill-bubble.is-ready:hover,
.skill-bubble.is-ready:focus {
    transform: scale(1.12);
    z-index: 5;
}

.skill-bubble img {
    width: 60%;
    height: 60%;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.35));
    pointer-events: none;
}

.skill-bubble .bubble-initial {
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.skill-tooltip {
    position: absolute;
    padding: 0.65rem 1rem;
    background: rgba(0, 0, 0, 0.88);
    color: #fff;
    border-radius: 999px;
    font-size: 0.85rem;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -150%);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
    border: 1px solid rgba(212, 175, 55, 0.6);
    box-shadow: 0 18px 32px rgba(0, 0, 0, 0.45);
    z-index: 10;
}

.skill-tooltip.visible {
    opacity: 1;
    transform: translate(-50%, -175%);
}

.skills-legend {
    max-width: 420px;
    background: rgba(0, 0, 0, 0.88);
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
    color: rgba(255, 255, 255, 0.92);
}

.skills-legend-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.skills-legend-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.skills-level-guide {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.skills-level-guide li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.level-indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 12px currentColor;
}

.level-indicator[data-level="high"] {
    background: linear-gradient(135deg, #ffefb5 0%, #d4af37 100%);
    color: #d4af37;
}

.level-indicator[data-level="mid"] {
    background: linear-gradient(135deg, #9fa6b2 0%, #4b5563 100%);
    color: #9fa6b2;
}

.skills-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-chip {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    padding: 0.45rem 0.95rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.skill-chip[data-level="high"] {
    border-color: rgba(212, 175, 55, 0.45);
    color: #ffefb5;
}

.skill-chip .chip-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

@media (max-width: 768px) {
    .skills-legend {
        text-align: center;
    }

    .skills-level-guide {
        align-items: center;
    }
}

/* ======================================
   후기(Testimonials) 섹션
   ====================================== */

.testimonials {
    background: var(--bg-white);
    overflow: visible;
    padding: var(--spacing-2xl) 0;
}

.testimonials-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: visible;
    padding: 0 20px;
}

.testimonials-track {
    display: flex;
    transition: transform var(--transition-slow);
    overflow: visible;
}

.testimonial-card {
    min-width: 100%;
    padding: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: visible;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.testimonial-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.testimonial-position {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-rating i {
    color: #FFD700;
    font-size: 1rem;
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    font-style: italic;
}

.testimonial-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    /* 고정된 크기 */
    width: 40px;
    height: 40px;
    background: var(--bg-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    /* 클릭 모션 transition */
    transition: transform 0.1s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.testimonial-nav:hover {
    background: var(--primary-color);
    transform: translateY(-50%) scale(1.05);
}

.testimonial-nav:active {
    /* 눌리는 모션 */
    transform: translateY(-50%) scale(0.95);
    box-shadow: var(--shadow-sm);
}

.testimonial-nav.prev {
    left: -20px;
}

.testimonial-nav.next {
    right: -20px;
}

.testimonial-pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
}

.pagination-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg-gray);
    cursor: pointer;
    transition: all var(--transition-base);
}

.pagination-dot.active {
    background: var(--primary-color);
    width: 30px;
    border-radius: 5px;
}

/* ======================================
   Career 섹션 (전문가 소개 - About + Skills 통합)
   ====================================== */

/* 전문가 소개 섹션 (Hero + About + Skills 통합) */
.expert-intro {
    background: var(--bg-light);
    position: relative;
    padding-top: 0;
}

/* 음악 컨트롤 버튼 */
.music-control {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.2);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.music-control:hover {
    background: rgba(212, 175, 55, 0.4);
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(212, 175, 55, 0.4);
}

.music-control.muted {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.5);
}

.music-control.muted:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Hero 배경 요소들 */
.expert-intro .hero-autumn-bg {
    display: none; /* 정적 배경 숨김 */
}

.expert-intro .hero-background {
    background: radial-gradient(circle at center, #1a1a1a 0%, #000000 100%); /* 깊이감 있는 다크 배경 */
    opacity: 1;
}

.expert-intro .hero-canvas {
    display: block; /* 3D 캔버스 활성화 */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1;
    opacity: 0.8; /* 은은하게 */
}

.hero-gradient-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh; /* 캔버스와 동일한 높이 */
    /* 90% 지점부터 서서히 배경색(#151515)으로 변해서 경계선 제거 (범위 축소로 별 가림 최소화) */
    background: linear-gradient(to bottom, rgba(21,21,21,0) 90%, #151515 100%);
    z-index: 2; /* 캔버스(1)보다 위, 콘텐츠(10)보다 아래 */
    pointer-events: none;
}

/* Hero 콘텐츠 */
.expert-intro .hero-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 10;
    padding: var(--spacing-2xl) 0;
    padding-bottom: 120px; /* Scroll Down 공간 확보 */
}

.expert-intro .scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20; /* z-index 증가 */
}

/* Career 콘텐츠 */
.career-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    position: relative;
    z-index: 1;
    background: transparent; /* 배경색 제거하여 Hero 배경과 통일 */
    padding: var(--spacing-2xl) 0;
}

.career-about {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

/* 태블릿 이하에서 career-about 1열 레이아웃 */
@media (max-width: 968px) {
    .career-about {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

.career-subtitle {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.career-skills {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.career-skills .section-header {
    margin-bottom: var(--spacing-xl);
}

/* 기존 About 스타일 재사용 */
.about {
    background: transparent; /* 배경색 제거 */
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image {
    position: relative;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.about-image-decoration {
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-xl);
    z-index: -1;
    transform: none !important;
    will-change: auto;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.about-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.info-item i {
    color: var(--primary-color);
    font-size: 1.125rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.25rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: #111111;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ======================================
   컨택트 섹션 (마케팅 섹션 내부)
   ====================================== */

.contact {
    background: var(--bg-white);
}

/* 마케팅 섹션 내부 Contact */
.marketing-contact {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid rgba(212, 175, 55, 0.2);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-card {
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-card i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--bg-gray);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 214, 232, 0.2);
}

.btn-submit {
    width: 100%;
    margin-top: var(--spacing-md);
    /* 고정된 높이 */
    height: 52px;
    /* 더 확실한 클릭 모션 */
    transition: transform 0.1s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    background: #C8F4E8;
    color: #065F46;
    display: block;
}

.form-message.error {
    background: #FFE5D4;
    color: #92400E;
    display: block;
}

/* ======================================
   푸터
   ====================================== */

.footer {
    background: var(--text-primary);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--bg-white);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* ======================================
   Back to Top 버튼
   ====================================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    /* 고정된 크기 */
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    /* 클릭 모션 transition */
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.1s ease, box-shadow 0.15s ease, filter 0.15s ease;
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    box-shadow: var(--shadow-xl);
    filter: brightness(1.1);
}

.back-to-top:active {
    /* 눌리는 모션: 작아지고 아래로 이동 */
    transform: scale(0.92) translateY(2px);
    box-shadow: var(--shadow-md);
}

/* ======================================
   반응형 디자인
   ====================================== */

/* 📚 학습포인트: 태블릿 (768px 이하) */
@media (max-width: 968px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-object {
        left: -5%;
        opacity: 0.7;
    }
    
    .hero-object-img {
        height: 50vh;
        max-height: 500px;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .testimonial-nav.prev {
        left: -10px;
    }
    
    .testimonial-nav.next {
        right: -10px;
    }
}

/* 📚 학습포인트: 모바일 (768px 이하) */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
        transition: left var(--transition-base);
        z-index: var(--z-dropdown);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-object {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-legend {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    /* 모바일 Scroll Down 인디케이터 최적화 */
    .scroll-down {
        bottom: 20px;
        font-size: 0.75rem;
        gap: 0.35rem;
    }
    
    .scroll-down i {
        font-size: 1rem;
    }
    
    /* Hero 콘텐츠 모바일 최적화 */
    .expert-intro .hero-content {
        min-height: calc(100vh - 60px);
        padding: var(--spacing-xl) 0;
        padding-bottom: 100px; /* Scroll down 버튼 공간 확보 */
    }
    
    .expert-intro .scroll-down {
        bottom: 30px; /* 모바일에서 위치 조정 */
    }
    
    /* Career 콘텐츠 모바일 최적화 - 섹션 겹침 방지 */
    .career-content {
        position: relative; /* z-index 적용을 위해 */
        z-index: 5; /* hero-gradient-cover(2)보다 높게 설정하여 상호작용 및 가시성 확보 */
        padding: var(--spacing-2xl) 0;
        gap: var(--spacing-2xl);
    }
    
    .career-about {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        margin-bottom: var(--spacing-xl);
    }
    
    .career-skills {
        margin-top: var(--spacing-2xl);
        padding-top: var(--spacing-2xl);
        border-top: 1px solid rgba(212, 175, 55, 0.2);
    }
    
    /* About 이미지 모바일 최적화 */
    .about-image {
        max-width: 280px;
        margin: 0 auto;
    }
    
    .about-image-decoration {
        top: -10px;
        left: -10px;
        right: 10px;
        bottom: 10px;
    }
    
    /* About 텍스트 모바일 최적화 */
    .about-text {
        text-align: center;
    }
    
    .about-text .section-title {
        text-align: center;
    }
    
    .career-subtitle {
        text-align: center;
        font-size: 1.1rem;
    }
    
    .about-description {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    .about-info {
        align-items: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* 음악 컨트롤 버튼 모바일 위치 */
    .music-control {
        width: 50px;
        height: 50px;
        bottom: 1.5rem;
        right: 1.5rem;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        align-items: center;
    }
    
    .btn {
        /* 모바일에서도 고정 너비 유지 (텍스트 한 줄 표시) */
        min-width: 250px;
        max-width: 250px;
        width: 250px;
        min-height: 52px;
        max-height: 52px;
        height: 52px;
        padding: 0.875rem 1.5rem;
        justify-content: center;
        white-space: nowrap;
        overflow: hidden;
    }
    
    .filter-buttons {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    /* 480px 이하 소형 모바일 추가 최적화 */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    /* Scroll Down 소형 모바일 최적화 */
    .scroll-down {
        bottom: 25px;
        font-size: 0.7rem;
    }
    
    .scroll-down i {
        font-size: 0.9rem;
    }
    
    /* Hero 콘텐츠 소형 모바일 */
    .expert-intro .hero-content {
        padding-bottom: 70px;
    }
    
    /* Career About 소형 모바일 */
    .about-image {
        max-width: 220px;
    }
    
    .career-subtitle {
        font-size: 1rem;
    }
    
    .about-description {
        font-size: 0.9rem;
    }
    
    /* 섹션 헤더 소형 모바일 */
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* 프로젝트 카드 소형 모바일 */
    .project-slider {
        height: 220px;
    }
    
    .project-video-container {
        height: 220px;
    }
    
    .project-title {
        font-size: 1.25rem;
    }
    
    .project-description {
        font-size: 0.9rem;
    }
    
    /* Contact 소형 모바일 */
    .contact-content {
        gap: var(--spacing-lg);
    }
    
    .contact-form {
        padding: var(--spacing-md);
    }
}

/* 📚 학습포인트: 매우 작은 화면 (360px 이하) */
@media (max-width: 360px) {
    .btn {
        /* 작은 화면에서는 약간 작게 */
        min-width: 230px;
        max-width: 230px;
        width: 230px;
        min-height: 50px;
        max-height: 50px;
        height: 50px;
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
        white-space: nowrap;
        overflow: hidden;
    }
    
    /* 매우 작은 화면 추가 최적화 */
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: 0.85rem;
    }
    
    /* Scroll Down 매우 작은 화면 */
    .scroll-down {
        bottom: 12px;
        font-size: 0.65rem;
        padding: 0.75rem;
    }
    
    .scroll-down i {
        font-size: 0.85rem;
    }
    
    /* Career About 매우 작은 화면 */
    .about-image {
        max-width: 180px;
    }
    
    .career-subtitle {
        font-size: 0.95rem;
    }
    
    .about-description {
        font-size: 0.85rem;
    }
    
    /* 프로젝트 버튼 매우 작은 화면 */
    .project-btn {
        min-width: 200px;
        max-width: 200px;
        width: 200px;
        min-height: 46px;
        max-height: 46px;
        height: 46px;
        font-size: 0.9rem;
    }
    
    /* 필터 버튼 매우 작은 화면 */
    .filter-btn {
        min-width: 70px;
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    /* 음악 컨트롤 매우 작은 화면 */
    .music-control {
        width: 44px;
        height: 44px;
        bottom: 1rem;
        right: 1rem;
        font-size: 1.1rem;
    }
}