/* 폰트 정의 */
@font-face {
    font-family: 'KotraSongeulssi';
    src: url('font/KOTRA_SONGEULSSI.otf') format('opentype'),
         url('font/KOTRA_SONGEULSSI.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* 리셋 및 기본 설정 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00f0ff;
    --primary-dark: #00d4ff;
    --secondary-color: #ff00ff;
    --accent-color: #ff0080;
    --neon-cyan: #00f0ff;
    --neon-pink: #ff00ff;
    --neon-purple: #8b00ff;
    --text-dark: #ffffff;
    --text-light: #b3b3b3;
    --text-neon: #00f0ff;
    --bg-light: #0a0a0a;
    --bg-white: #1a1a1a;
    --bg-card: #1a1a2e;
    --border-color: #16213e;
    --border-neon: rgba(0, 240, 255, 0.3);
    --success-color: #00ff88;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.5), 0 0 40px rgba(0, 240, 255, 0.3);
    --glow-pink: 0 0 20px rgba(255, 0, 255, 0.5), 0 0 40px rgba(255, 0, 255, 0.3);
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    overflow-y: hidden;
    background-color: #101010;
    transform-origin: top center;
    width: 1920px;
    height: auto;
    min-height: auto;
    margin: 0;
    padding: 0;
    visibility: hidden;
}

body.scale-applied {
    visibility: visible;
}

html {
    font-size: 16px;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: #101010;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* 네비게이션 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #212121;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 9999;
    transition: opacity 0.3s ease, transform 0.3s ease;
    border-bottom: none;
    transform: translateY(-100%);
    opacity: 0;
}

.navbar.visible {
    transform: translateY(0);
    opacity: 1;
}

.navbar .container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem 20px;
    max-width: 100%;
    width: 100%;
    position: relative;
    overflow: visible;
}

.nav-brand {
    /* 절대 위치로 왼쪽에 고정 */
    position: absolute;
    left: calc(50% - 45vw); /* 화면 중앙 기준 왼쪽으로 이동 */
    visibility: visible;
}

.nav-brand h1 {
    font-size: 1.5rem;
    animation: navBrandGlow 4s ease-in-out infinite;
    font-family: 'KotraSongeulssi', sans-serif;
    color: #000000;
    text-shadow: 
        0 0 0 #ffffff,
        1px 1px 0 #ffffff,
        -1px -1px 0 #ffffff,
        1px -1px 0 #ffffff,
        -1px 1px 0 #ffffff,
        0 1px 0 #ffffff,
        0 -1px 0 #ffffff,
        1px 0 0 #ffffff,
        -1px 0 0 #ffffff;
}

/* 전체화면 모드에서도 네비게이션 바 위치는 JavaScript에서 스케일에 맞춰 조정됨 */

/* 전체화면 모드에서 스크롤바 하나만 보이도록 설정 */
:fullscreen,
:-webkit-full-screen,
:-moz-full-screen,
:-ms-fullscreen {
    overflow: auto !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
}

:fullscreen body,
:-webkit-full-screen body,
:-moz-full-screen body,
:-ms-fullscreen body {
    overflow: hidden !important;
    overflow-x: hidden !important;
    overflow-y: hidden !important;
}

body:fullscreen,
body:-webkit-full-screen,
body:-moz-full-screen,
body:-ms-fullscreen {
    overflow: hidden !important;
    overflow-x: hidden !important;
    overflow-y: hidden !important;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0 auto; /* 중앙 정렬 */
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 히어로 섹션 */
.hero {
    min-height: 800px;
    height: 800px;
    max-height: 800px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 90px 20px 50px;
    background: #101010;
    color: white;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}


.hero-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0 160px;
}

.hero-content-left {
    max-width: 700px;
    z-index: 10;
    margin-top: -150px;
}

.hero-small-text {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-main-title {
    font-size: 5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: white;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn-primary-gradient {
    background: transparent !important;
    color: white !important;
    border: 2px solid rgba(255, 255, 255, 0.8) !important;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.5), 0 0 30px rgba(255, 255, 255, 0.3) !important;
    font-weight: 600 !important;
    font-size: 1.7rem !important;
    padding: 16px 130px !important;
    border-radius: 50px !important;
    transition: all 0.3s ease;
    min-width: 350px;
}

.btn-primary-gradient:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.8), 0 0 40px rgba(255, 255, 255, 0.5) !important;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.5);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 16px 40px;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

/* 히어로 섹션 플로팅 카드 */
.hero-floating-card {
    position: absolute;
    top: 76%;
    left: 53%;
    transform: translateX(-50%);
    z-index: 5;
    animation: floatLeftRight 5s ease-in-out infinite;
    text-decoration: none;
    cursor: pointer;
    display: block;
    transition: transform 0.3s ease;
}

.hero-floating-card:hover {
    transform: translateX(-50%) scale(1.1);
}

.hero-floating-card:active {
    transform: translateX(-50%) scale(0.95);
}

.hero-floating-card-2 {
    top: 5%;
    left: 54%;
    animation: floatRightLeft 5s ease-in-out infinite;
}

.hero-floating-card-2:hover {
    transform: translateX(-50%) scale(1.1);
}

.hero-floating-card-2:active {
    transform: translateX(-50%) scale(0.95);
}

.hero-floating-card-3 {
    top: 48%;
    left: 87%;
    animation: floatUpDown 5s ease-in-out infinite;
}

.hero-floating-card-3:hover {
    transform: translateX(-50%) scale(1.1);
}

.hero-floating-card-3:active {
    transform: translateX(-50%) scale(0.95);
}

.floating-card-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(6px);
    padding: 0;
    border-radius: 100px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    text-align: center;
    width: 110px;
    height: 110px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    opacity: 0.7;
    animation: videoNeonPulse 3s ease-in-out infinite;
}

.floating-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
    margin: 0;
    padding: 0;
}

.floating-card-content h3 {
    font-size: 0.85rem;
    color: white;
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.floating-card-content p {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

@keyframes floatLeftRight {
    0%, 100% {
        transform: translateX(-50%);
    }
    50% {
        transform: translateX(calc(-50% + 25px));
    }
}

@keyframes floatRightLeft {
    0%, 100% {
        transform: translateX(calc(-50% + 25px));
    }
    50% {
        transform: translateX(-50%);
    }
}

@keyframes floatUpDown {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-25px);
    }
}

.hero .scroll-hint-small {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 0;
    z-index: 100;
    opacity: 1;
    visibility: visible;
}

/* 다양한 화면 비율에 대한 조정 */
@media (min-aspect-ratio: 21/9) {
    /* 울트라와이드 모니터 */
    .hero-video {
        object-fit: cover;
        object-position: center;
    }
}

@media (max-aspect-ratio: 16/10) {
    /* 16:10 또는 더 세로 모니터 */
    .hero-video {
        object-fit: cover;
        object-position: center;
    }
}

@media (min-width: 2560px) {
    /* 2K 이상 해상도 */
    .hero {
        min-height: 100vh;
        height: 100vh;
    }
}

@media (min-width: 3840px) {
    /* 4K 해상도 */
    .hero {
        min-height: 100vh;
        height: 100vh;
    }
}

/* 움직이는 그라데이션 배경 */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: transparent;
    animation: gradientMove 20s ease infinite;
    z-index: 0;
}

/* 추가 움직이는 레이어 */
.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: transparent;
    animation: gradientMoveReverse 25s ease infinite;
    z-index: 0;
}

@keyframes gradientMove {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(30px, -30px);
    }
    66% {
        transform: translate(-30px, 30px);
    }
}

@keyframes gradientMoveReverse {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(-40px, 40px);
    }
    66% {
        transform: translate(40px, -40px);
    }
}

.hero-grid {
    display: none;
}

/* 부드러운 원형 파티클 플로팅 효과 */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    perspective: 1000px;
    transform-style: preserve-3d;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.25) 0%, transparent 70%);
    filter: blur(2px);
    animation: particleFloat 20s ease-in-out infinite;
    transform-style: preserve-3d;
}

/* 가까운 파티클 (큰 크기, 선명, 높은 opacity) */
.particle:nth-child(1),
.particle:nth-child(5),
.particle:nth-child(14),
.particle:nth-child(19) {
    filter: blur(1px);
    opacity: 0.5;
    transform: scale(1.2);
    z-index: 3;
}

/* 중간 거리 파티클 (중간 크기, 약간 흐림) */
.particle:nth-child(3),
.particle:nth-child(7),
.particle:nth-child(16),
.particle:nth-child(22),
.particle:nth-child(24) {
    filter: blur(2px);
    opacity: 0.4;
    transform: scale(1);
    z-index: 2;
}

/* 먼 파티클 (작은 크기, 많이 흐림, 낮은 opacity) */
.particle:nth-child(6),
.particle:nth-child(13),
.particle:nth-child(17),
.particle:nth-child(20),
.particle:nth-child(23),
.particle:nth-child(25) {
    filter: blur(4px);
    opacity: 0.2;
    transform: scale(0.6);
    z-index: 1;
}

.particle:nth-child(1) {
    width: 120px;
    height: 120px;
    top: 5%;
    left: 2%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.3) 0%, transparent 70%);
    animation-duration: 15s;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    width: 80px;
    height: 80px;
    top: 12%;
    left: 25%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 18s;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 45%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 22s;
    animation-delay: 4s;
    opacity: 0.15;
}

.particle:nth-child(4) {
    width: 90px;
    height: 90px;
    top: 8%;
    left: 65%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.3) 0%, transparent 70%);
    animation-duration: 16s;
    animation-delay: 1s;
    opacity: 0.1;
}

.particle:nth-child(5) {
    width: 110px;
    height: 110px;
    top: 15%;
    left: 85%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.3) 0%, transparent 70%);
    animation-duration: 25s;
    animation-delay: 3s;
    opacity: 0.1;
}

.particle:nth-child(6) {
    width: 70px;
    height: 70px;
    top: 35%;
    left: 0%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 19s;
    animation-delay: 5s;
}

.particle:nth-child(7) {
    width: 95px;
    height: 95px;
    top: 42%;
    left: 3%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, transparent 70%);
    animation-duration: 21s;
    animation-delay: 1.5s;
}

.particle:nth-child(8) {
    width: 85px;
    height: 85px;
    top: 50%;
    left: 42%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.35) 0%, transparent 70%);
    animation-duration: 17s;
    animation-delay: 3.5s;
    opacity: 0.2;
}

.particle:nth-child(9) {
    width: 105px;
    height: 105px;
    top: 38%;
    left: 62%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.3) 0%, transparent 70%);
    animation-duration: 23s;
    animation-delay: 2.5s;
    opacity: 0.1;
}

.particle:nth-child(10) {
    width: 75px;
    height: 75px;
    top: 45%;
    left: 82%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.4) 0%, transparent 70%);
    animation-duration: 20s;
    animation-delay: 4.5s;
    opacity: 0.1;
}

.particle:nth-child(11) {
    width: 85px;
    height: 85px;
    top: 55%;
    left: 1%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.35) 0%, transparent 70%);
    animation-duration: 19s;
    animation-delay: 0.5s;
}

.particle:nth-child(12) {
    width: 95px;
    height: 95px;
    top: 62%;
    left: 28%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 24s;
    animation-delay: 1.5s;
}

.particle:nth-child(13) {
    width: 65px;
    height: 65px;
    top: 68%;
    left: 48%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.3) 0%, transparent 70%);
    animation-duration: 17s;
    animation-delay: 2.5s;
    opacity: 0.15;
}

.particle:nth-child(14) {
    width: 110px;
    height: 110px;
    top: 58%;
    left: 68%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.3) 0%, transparent 70%);
    animation-duration: 21s;
    animation-delay: 3.5s;
    opacity: 0.1;
}

.particle:nth-child(15) {
    width: 80px;
    height: 80px;
    top: 65%;
    left: 88%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.35) 0%, transparent 70%);
    animation-duration: 18s;
    animation-delay: 4s;
    opacity: 0.1;
}

.particle:nth-child(16) {
    width: 100px;
    height: 100px;
    top: 75%;
    left: 2%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, transparent 70%);
    animation-duration: 22s;
    animation-delay: 1s;
}

.particle:nth-child(17) {
    width: 70px;
    height: 70px;
    top: 82%;
    left: 32%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 16s;
    animation-delay: 5s;
}

.particle:nth-child(18) {
    width: 90px;
    height: 90px;
    top: 78%;
    left: 52%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.3) 0%, transparent 70%);
    animation-duration: 23s;
    animation-delay: 2s;
}

.particle:nth-child(19) {
    width: 105px;
    height: 105px;
    top: 72%;
    left: 72%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.4) 0%, transparent 70%);
    animation-duration: 20s;
    animation-delay: 3s;
    opacity: 0.1;
}

.particle:nth-child(20) {
    width: 75px;
    height: 75px;
    top: 88%;
    left: 92%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.35) 0%, transparent 70%);
    animation-duration: 25s;
    animation-delay: 1.5s;
    opacity: 0.1;
}

.particle:nth-child(21) {
    width: 88px;
    height: 88px;
    top: 25%;
    left: 4%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.35) 0%, transparent 70%);
    animation-duration: 19s;
    animation-delay: 4.5s;
}

.particle:nth-child(22) {
    width: 92px;
    height: 92px;
    top: 30%;
    left: 38%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.3) 0%, transparent 70%);
    animation-duration: 21s;
    animation-delay: 0.8s;
    opacity: 0.25;
}

.particle:nth-child(23) {
    width: 68px;
    height: 68px;
    top: 28%;
    left: 58%;
    background: radial-gradient(circle, rgba(255, 0, 255, 0.4) 0%, transparent 70%);
    animation-duration: 17s;
    animation-delay: 2.2s;
    opacity: 0.1;
}

.particle:nth-child(24) {
    width: 98px;
    height: 98px;
    top: 33%;
    left: 78%;
    background: radial-gradient(circle, rgba(139, 0, 255, 0.3) 0%, transparent 70%);
    animation-duration: 24s;
    animation-delay: 3.8s;
    opacity: 0.1;
}

.particle:nth-child(25) {
    width: 82px;
    height: 82px;
    top: 48%;
    left: 58%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, transparent 70%);
    animation-duration: 18s;
    animation-delay: 4.2s;
    opacity: 0.1;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* 동영상 배경 래퍼 */
.hero-video-wrapper {
    position: absolute;
    top: 42%;
    left: 70%;
    width: 500px;
    height: 580px;
    transform: translate(-50%, -50%) perspective(1000px) rotateX(5deg) rotateY(12deg) rotateZ(-1deg);
    z-index: 0;
    animation: videoFloat 6s ease-in-out infinite, videoNeonPulse 3s ease-in-out infinite;
    overflow: visible;
    border-radius: 20px;
    transform-style: preserve-3d;
}


/* 동영상 배경 */
.hero-video {
    width: 100%;
    height: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center;
    opacity: 0.8;
    filter: brightness(0.9) contrast(1.1);
    border-radius: 20px;
    transition: opacity 0.1s ease;
    position: relative;
    z-index: 0;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

@keyframes videoFloat {
    0%, 100% {
        transform: translate(-50%, calc(-50% + 0px)) perspective(1000px) rotateX(5deg) rotateY(12deg) rotateZ(-1deg);
    }
    50% {
        transform: translate(-50%, calc(-50% - 20px)) perspective(1000px) rotateX(4deg) rotateY(10deg) rotateZ(0deg);
    }
}

@keyframes videoNeonPulse {
    0%, 100% {
        box-shadow: 
            0 0 10px rgba(255, 255, 255, 0.3),
            0 0 20px rgba(255, 255, 255, 0.2);
    }
    50% {
        box-shadow: 
            0 0 15px rgba(255, 255, 255, 0.5),
            0 0 30px rgba(255, 255, 255, 0.4);
    }
}

/* 전체화면 모드일 때도 동일하게 유지 */
.hero.fullscreen-mode .hero-video-wrapper {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 500px !important;
    height: 580px !important;
    transform: translate(-50%, -50%) !important;
    z-index: 0 !important;
}

.hero.fullscreen-mode .hero-video {
    object-fit: cover !important;
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    max-height: 100% !important;
    position: relative !important;
    top: 0 !important;
    left: 0 !important;
    transform: none !important;
    border-radius: 20px !important;
    clip-path: none !important;
}

.hero.fullscreen-mode {
    min-height: 45vh !important;
    height: 45vh !important;
    max-height: 45vh !important;
    position: relative !important;
}

/* 동영상 밑 브랜드 텍스트 */
.hero-brand-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, calc(-50% + 350px));
    z-index: 10;
    text-align: center;
}

.hero-brand-text h1 {
    font-size: 2rem;
    animation: navBrandGlow 4s ease-in-out infinite;
    font-family: 'KotraSongeulssi', sans-serif;
    color: #000000;
    text-shadow: 
        0 0 0 #ffffff,
        1px 1px 0 #ffffff,
        -1px -1px 0 #ffffff,
        1px -1px 0 #ffffff,
        -1px 1px 0 #ffffff,
        0 1px 0 #ffffff,
        0 -1px 0 #ffffff,
        1px 0 0 #ffffff,
        -1px 0 0 #ffffff;
    margin: 0;
}

.hero-brand-text .hero-inquiry-text {
    font-family: sans-serif;
    font-size: 1.6rem;
    font-weight: 400;
    margin-left: 10px;
}

/* 서비스 섹션 제목을 동영상 밑 텍스트와 완전히 동일하게 */
.hero-brand-style {
    font-size: 2rem !important;
    animation: navBrandGlow 4s ease-in-out infinite !important;
    font-family: 'KotraSongeulssi', sans-serif !important;
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
    margin: 0 !important;
    -webkit-font-smoothing: antialiased !important;
    text-rendering: optimizeLegibility;
    position: relative;
    z-index: 10;
    contain: layout style paint;
    /* text-shadow는 애니메이션에서 제어 */
}

.program-service-text {
    font-family: sans-serif !important;
    font-size: 2rem !important;
    font-weight: 700 !important;
    margin-left: 10px !important;
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
    animation: none !important;
    text-shadow: 
        0 0 0 #ffffff,
        2px 2px 0 #ffffff,
        -2px -2px 0 #ffffff,
        2px -2px 0 #ffffff,
        -2px 2px 0 #ffffff,
        0 2px 0 #ffffff,
        0 -2px 0 #ffffff,
        2px 0 0 #ffffff,
        -2px 0 0 #ffffff !important;
    opacity: 1 !important;
    -webkit-font-smoothing: antialiased !important;
    text-rendering: optimizeLegibility;
    pointer-events: auto !important;
    position: relative;
    z-index: 10;
    contain: layout style paint;
}

.guide-channel-link {
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
    text-decoration: none !important;
    cursor: pointer !important;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1000 !important;
    pointer-events: auto !important;
    display: inline-block !important;
    padding: 2px 8px;
    margin-left: 4px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    text-shadow: 
        0 0 0 #ffffff,
        1px 1px 0 #ffffff,
        -1px -1px 0 #ffffff,
        1px -1px 0 #ffffff,
        -1px 1px 0 #ffffff,
        0 1px 0 #ffffff,
        0 -1px 0 #ffffff,
        1px 0 0 #ffffff,
        -1px 0 0 #ffffff !important;
}

.guide-channel-link:hover {
    color: var(--neon-cyan) !important;
    -webkit-text-fill-color: var(--neon-cyan) !important;
    background: rgba(0, 240, 255, 0.2);
    text-shadow: 
        0 0 10px var(--neon-cyan),
        0 0 20px var(--neon-cyan),
        0 0 0 #ffffff,
        1px 1px 0 #ffffff,
        -1px -1px 0 #ffffff,
        1px -1px 0 #ffffff,
        -1px 1px 0 #ffffff,
        0 1px 0 #ffffff,
        0 -1px 0 #ffffff,
        1px 0 0 #ffffff,
        -1px 0 0 #ffffff !important;
}

.guide-channel-link:active {
    transform: scale(0.95);
}

.hero-content {
    max-width: 600px;
    z-index: 1;
    animation: fadeInUp 0.8s ease;
    position: relative;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-image {
    position: relative;
    width: 500px;
    height: 500px;
    z-index: 10;
}

.floating-card {
    position: absolute;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 1.5rem 3rem;
    border-radius: 20px;
    border: none;
    text-align: center;
    animation: float 6s ease-in-out infinite, videoNeonPulse 3s ease-in-out infinite;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    z-index: 15;
    min-width: 280px;
}

.floating-card:nth-child(2) {
    background: rgba(0, 0, 0, 0.3);
    border: none;
    animation: float 6s ease-in-out infinite 2s, videoNeonPulse 3s ease-in-out infinite 0.5s;
    animation-delay: 0s, 0.5s;
}

.floating-card:nth-child(3) {
    background: rgba(0, 0, 0, 0.3);
    border: none;
    animation: float 6s ease-in-out infinite 4s, videoNeonPulse 3s ease-in-out infinite 1s;
    animation-delay: 0s, 1s;
}

.floating-card .card-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.floating-card p {
    font-size: 0.9rem;
    font-weight: 500;
}

.card-1 {
    top: calc(50% - 150px);
    left: calc(50% + 100px);
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    left: calc(50% + 600px);
    transform: translateY(-50%);
    animation: floatWithCenter 6s ease-in-out infinite 2s, videoNeonPulse 3s ease-in-out infinite 0.5s;
    animation-delay: 0s, 0.5s;
}

.card-3 {
    top: calc(50% + 150px);
    left: calc(50% + 100px);
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes floatWithCenter {
    0%, 100% {
        transform: translateY(calc(-50% + 0px));
    }
    50% {
        transform: translateY(calc(-50% - 20px));
    }
}

@keyframes neonGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(0, 240, 255, 1), 0 0 30px rgba(0, 240, 255, 0.8);
    }
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) translateZ(0);
        opacity: 0.4;
    }
    25% {
        transform: translate(30px, -25px) translateZ(20px);
        opacity: 0.5;
    }
    50% {
        transform: translate(-20px, 20px) translateZ(-10px);
        opacity: 0.45;
    }
    75% {
        transform: translate(35px, 30px) translateZ(10px);
        opacity: 0.55;
    }
}

/* 가까운 파티클 애니메이션 (더 큰 움직임) */
.particle:nth-child(1),
.particle:nth-child(5),
.particle:nth-child(14),
.particle:nth-child(19) {
    animation-name: particleFloatClose;
}

@keyframes particleFloatClose {
    0%, 100% {
        transform: translate(0, 0) scale(1.2) translateZ(50px);
        opacity: 0.5;
    }
    25% {
        transform: translate(40px, -30px) scale(1.3) translateZ(70px);
        opacity: 0.6;
    }
    50% {
        transform: translate(-25px, 25px) scale(1.15) translateZ(40px);
        opacity: 0.55;
    }
    75% {
        transform: translate(45px, 35px) scale(1.25) translateZ(60px);
        opacity: 0.65;
    }
}

/* 먼 파티클 애니메이션 (작은 움직임) */
.particle:nth-child(6),
.particle:nth-child(13),
.particle:nth-child(17),
.particle:nth-child(20),
.particle:nth-child(23),
.particle:nth-child(25) {
    animation-name: particleFloatFar;
}

@keyframes particleFloatFar {
    0%, 100% {
        transform: translate(0, 0) scale(0.6) translateZ(-100px);
        opacity: 0.15;
    }
    25% {
        transform: translate(20px, -15px) scale(0.65) translateZ(-80px);
        opacity: 0.2;
    }
    50% {
        transform: translate(-15px, 15px) scale(0.55) translateZ(-120px);
        opacity: 0.12;
    }
    75% {
        transform: translate(25px, 20px) scale(0.6) translateZ(-90px);
        opacity: 0.22;
    }
}

@keyframes neonParticle {
    0%, 100% {
        transform: translate(0, 0);
        opacity: 0;
        box-shadow: 0 0 5px rgba(0, 240, 255, 0.3);
    }
    50% {
        transform: translate(var(--random-x, 50px), var(--random-y, 50px));
        opacity: 1;
        box-shadow: 0 0 20px rgba(0, 240, 255, 0.8), 0 0 40px rgba(0, 240, 255, 0.4);
    }
}

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

/* 버튼 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: translateY(-2px);
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.4);
}

/* 섹션 공통 스타일 */
section {
    padding: 80px 0;
}

.services {
    padding-top: 40px; /* 히어로 섹션과의 간격 줄임 */
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    pointer-events: auto;
    position: relative;
    z-index: 10;
}

.brand-name {
    display: inline-block;
    padding: 0 0.3rem;
    border-radius: 8px;
    animation: brandGlow 3s ease-in-out infinite;
    font-weight: 700;
    font-family: 'KotraSongeulssi', sans-serif;
}

/* 네비게이션 바 전용 애니메이션 (테두리 포함, 텍스트만 반짝임) */
@keyframes navBrandGlow {
    0%, 100% {
        text-shadow: 
            0 0 0 #ffffff,
            2px 2px 0 #ffffff,
            -2px -2px 0 #ffffff,
            2px -2px 0 #ffffff,
            -2px 2px 0 #ffffff,
            0 2px 0 #ffffff,
            0 -2px 0 #ffffff,
            2px 0 0 #ffffff,
            -2px 0 0 #ffffff,
            0 0 8px rgba(255, 255, 255, 0.7),
            0 0 15px rgba(255, 255, 255, 0.5),
            0 0 25px rgba(255, 255, 255, 0.4);
        opacity: 1;
    }
    50% {
        text-shadow: 
            0 0 0 #ffffff,
            2px 2px 0 #ffffff,
            -2px -2px 0 #ffffff,
            2px -2px 0 #ffffff,
            -2px 2px 0 #ffffff,
            0 2px 0 #ffffff,
            0 -2px 0 #ffffff,
            2px 0 0 #ffffff,
            -2px 0 0 #ffffff,
            0 0 12px rgba(255, 255, 255, 1),
            0 0 20px rgba(255, 255, 255, 0.8),
            0 0 30px rgba(255, 255, 255, 0.6),
            0 0 40px rgba(255, 255, 255, 0.4);
        opacity: 1;
    }
}

/* 서비스 섹션용 원래 애니메이션 (테두리 없음) */
@keyframes brandGlow {
    0%, 100% {
        text-shadow: 
            0 0 10px rgba(255, 255, 255, 0.5),
            0 0 20px rgba(255, 255, 255, 0.4),
            0 0 30px rgba(255, 255, 255, 0.3);
        filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
    }
    50% {
        text-shadow: 
            0 0 15px rgba(255, 255, 255, 0.8),
            0 0 30px rgba(255, 255, 255, 0.6),
            0 0 45px rgba(255, 255, 255, 0.4);
        filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.5));
    }
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.scroll-hint-small {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.scroll-hint-small p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
    margin: 0;
}

.scroll-hint-small .scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255, 255, 255, 0.8);
    border-bottom: 2px solid rgba(255, 255, 255, 0.8);
    transform: rotate(45deg);
    animation: scrollArrowBounce 2s ease-in-out infinite;
}

@keyframes scrollArrowBounce {
    0%, 100% {
        transform: rotate(45deg) translateY(0);
        opacity: 0.6;
    }
    50% {
        transform: rotate(45deg) translateY(8px);
        opacity: 1;
    }
}

/* 서비스 섹션 */
.services {
    background: #101010;
    padding-top: 40px; /* 히어로 섹션과의 간격 줄임 */
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: #212121;
    padding: 2rem;
    border-radius: 16px;
    border: none;
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    opacity: 0;
    transform: translateY(30px);
}

.service-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.4);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: rgba(255, 255, 255, 0.9);
    font-weight: bold;
    text-shadow: 
        0 0 10px rgba(255, 255, 255, 0.5),
        0 0 20px rgba(255, 255, 255, 0.3);
}

/* 프로세스 섹션 */
.process {
    background: #101010;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
    border: none;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    animation: videoNeonPulse 3s ease-in-out infinite;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 포트폴리오 섹션 */
.portfolio {
    background: #101010;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    background: #212121;
    padding: 2rem;
    border-radius: 16px;
    border: none;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.4);
}

.portfolio-image {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.portfolio-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.portfolio-item p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    border: none;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
}

/* 문의하기 섹션 */
.contact {
    background: #101010;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-icon {
    font-size: 1.5rem;
}

.info-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.info-item p {
    color: var(--text-light);
}

.contact-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: none;
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    background-color: #1a1a1a;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 0 0 3px rgba(255, 255, 255, 0.3), 
        0 0 10px rgba(255, 255, 255, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    background-color: #252525;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 푸터 */
.footer {
    background: #101010;
    color: white;
    padding: 3rem 0 1rem !important;
    border-top: 1px solid var(--border-color);
    margin: 0 !important;
    margin-bottom: 0 !important;
    border-bottom: none !important;
}

footer {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    margin-top: 0 !important;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 0.5rem !important;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    margin: 0 !important;
    margin-bottom: 0 !important;
    margin-top: 0 !important;
    padding-bottom: 0 !important;
    line-height: 1 !important;
    height: auto;
    min-height: 0 !important;
    max-height: none !important;
}

/* footer 바로 밑 여백 제거 */
footer + * {
    margin-top: 0 !important;
}

footer:last-child {
    margin-bottom: 0 !important;
}

footer .container {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    margin-top: 0 !important;
}

.footer-bottom p {
    margin: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
    display: block;
    height: auto;
    min-height: 0 !important;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: #0a0a0a;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 20px 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-image {
        width: 100%;
        height: 300px;
        margin-top: 2rem;
    }

    .floating-card {
        padding: 1rem;
    }

    .floating-card .card-icon {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}