/* 기본 설정 및 폰트 */
@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@400;600;800&display=swap');

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

:root {
    --primary-blue: #2563eb;
    --primary-purple: #7a2aab;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #4c1d95 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --accent-blue: #3b82f6;
    --accent-purple: #ac5cf6;
}

body {
    font-family: 'Pretendard', sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background: var(--bg-gradient);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* 배경 애니메이션 파티클 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
    animation: float-particles 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes float-particles {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-5%, -5%) rotate(120deg); }
    66% { transform: translate(5%, 5%) rotate(240deg); }
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 헤더 섹션 */
header {
    text-align: center;
    padding: 100px 20px 140px;
    color: white;
    position: relative;
    overflow: hidden;
}

header::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.03) 50%, transparent 70%);
    animation: header-shine 8s linear infinite;
}

@keyframes header-shine {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.logo-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.95em;
    font-weight: 600;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #cbd5e1;
    position: relative;
    z-index: 1;
    animation: badge-float 3s ease-in-out infinite, badge-glow 2s ease-in-out infinite alternate;
}

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

@keyframes badge-glow {
    0% { box-shadow: 0 0 5px rgba(255, 255, 255, 0.2); }
    100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.6), 0 0 40px rgba(59, 130, 246, 0.4); }
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, #fff, #bfdbfe, #ddd6fe, #fff, #bfdbfe);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 1;
    animation: gradient-shift 4s linear infinite, title-bounce 2s ease-in-out infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

@keyframes title-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.subtitle {
    font-size: 1.4em;
    font-weight: 400;
    color: #94a3b8;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
    animation: fade-in-up 1s ease-out 0.3s both;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    display: inline-block;
    padding: 20px 60px;
    font-size: 1.25em;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple), var(--primary-blue));
    background-size: 200% 200%;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    z-index: 1;
    overflow: hidden;
    animation: cta-pulse 3s ease-in-out infinite, gradient-bg 4s ease infinite;
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(124, 58, 237, 0.6), 0 0 50px rgba(124, 58, 237, 0.3);
}

@keyframes cta-pulse {
    0%, 100% { box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4); }
    50% { box-shadow: 0 10px 40px rgba(124, 58, 237, 0.6), 0 0 30px rgba(59, 130, 246, 0.4); }
}

@keyframes gradient-bg {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 메인 콘텐츠 영역 */
.main-content {
    background: var(--card-bg);
    border-radius: 40px;
    margin-top: -80px;
    padding: 80px 60px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: content-slide-up 1s ease-out;
    position: relative;
}

@keyframes content-slide-up {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section { margin-bottom: 80px; }

h2 {
    font-size: 2.2em;
    color: #0f172a;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: h2-entrance 0.8s ease-out;
}

h2::after {
    content: "";
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, var(--accent-blue), transparent);
    animation: line-expand 1s ease-out 0.3s both;
}

@keyframes h2-entrance {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes line-expand {
    from {
        width: 0;
        opacity: 0;
    }
    to {
        width: 100%;
        opacity: 1;
    }
}

/* 그리드 및 카드 스타일 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.info-card {
    background: #f8fafc;
    padding: 30px;
    border-radius: 24px;
    border: 1px solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: card-fade-in 0.6s ease-out both;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.1), transparent);
    transition: left 0.6s;
}

.info-card:hover::before {
    left: 100%;
}

.info-card:hover {
    border-color: var(--accent-purple);
    transform: translateY(-10px) scale(1.03);
    background: white;
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2), 0 0 30px rgba(59, 130, 246, 0.1);
}

.info-card:nth-child(1) { animation-delay: 0.1s; }
.info-card:nth-child(2) { animation-delay: 0.2s; }
.info-card:nth-child(3) { animation-delay: 0.3s; }
.info-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes card-fade-in {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.info-card h3 {
    color: var(--primary-purple);
    font-size: 1.1em;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 1;
}

.info-card p {
    font-size: 1.1em;
    font-weight: 400;
    color: #334155;
    position: relative;
    z-index: 1;
}

.info-card p.indent {
    padding-left: 0.6em;
}

/* 하이라이트 박스 (LeRobot 설명 등) */
.highlight-box {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: 40px;
    border-radius: 30px;
    border-left: 8px solid var(--primary-blue);
    animation: highlight-entrance 0.8s ease-out, highlight-glow 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.highlight-box::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    animation: rotate-glow 10s linear infinite;
}

@keyframes highlight-entrance {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes highlight-glow {
    0%, 100% { box-shadow: 0 0 0 rgba(59, 130, 246, 0); }
    50% { box-shadow: 0 0 30px rgba(59, 130, 246, 0.2); }
}

@keyframes rotate-glow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 트랙 구분 (해커톤 vs 창업) */
.track-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 30px;
}

.track-card {
    padding: 30px;
    border-radius: 20px;
    color: white;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: track-slide-in 0.8s ease-out both;
    position: relative;
    overflow: hidden;
}

.track-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.track-card:hover::before {
    opacity: 1;
    animation: track-rotate 4s linear infinite;
}

.track-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.track-h {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    animation-delay: 0.2s;
}

.track-s {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    animation-delay: 0.4s;
}

@keyframes track-slide-in {
    from {
        opacity: 0;
        transform: translateY(40px) rotateX(20deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}

@keyframes track-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 타임라인 스타일 */
.timeline-item {
    border-left: 3px solid #e2e8f0;
    padding-left: 40px;
    margin-left: 10px;
    padding-bottom: 40px;
    position: relative;
    animation: timeline-fade-in 0.8s ease-out both;
}

.timeline-item h4 {
    font-size: 1.4em;
    margin-bottom: 15px;
}

.timeline-item p {
    font-size: 1.1em;
    line-height: 1.8;
    margin-bottom: 8px;
    color: #334155;
}

.timeline-item:nth-child(1) { animation-delay: 0.2s; }
.timeline-item:nth-child(2) { animation-delay: 0.4s; }

.timeline-item::before {
    content: "";
    position: absolute;
    left: -10px;
    top: 0.4em;
    width: 17px;
    height: 17px;
    background: var(--primary-blue);
    border-radius: 50%;
    border: 4px solid white;
    animation: dot-pulse 2s ease-in-out infinite;
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7);
}

@keyframes timeline-fade-in {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes dot-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }
}

/* 어워드 스타일 */
.award-item {
    flex: 1;
    padding: 30px;
    border-radius: 24px;
    text-align: center;
    color: white;
    min-width: 200px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: award-pop-in 0.6s ease-out both;
    position: relative;
    overflow: hidden;
}

.award-item::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s;
}

.award-item:hover::before {
    transform: translate(-50%, -50%) scale(2);
}

.award-item:hover {
    transform: translateY(-15px) scale(1.1) rotate(5deg);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.gold {
    background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
    animation-delay: 0.1s;
}

.silver {
    background: linear-gradient(135deg, #94a3b8 0%, #475569 100%);
    animation-delay: 0.3s;
}

.bronze {
    background: linear-gradient(135deg, #d97706 0%, #92400e 100%);
    animation-delay: 0.5s;
}

@keyframes award-pop-in {
    0% {
        opacity: 0;
        transform: scale(0.5) rotateY(180deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotateY(0deg);
    }
}

/* 하단 CTA */
.cta-bottom {
    background: var(--bg-gradient);
    padding: 80px 40px;
    border-radius: 40px;
    text-align: center;
    color: white;
    margin-top: 60px;
    animation: cta-bottom-entrance 1s ease-out;
    position: relative;
    overflow: hidden;
}

.cta-bottom::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: cta-shine 3s linear infinite;
}

@keyframes cta-bottom-entrance {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes cta-shine {
    0% { left: -100%; }
    100% { left: 200%; }
}

footer {
    padding: 60px 20px;
    text-align: center;
    color: #94a3b8;
    font-size: 0.95em;
    animation: footer-fade-in 1s ease-out 0.5s both;
}

@keyframes footer-fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 페이지 로드 애니메이션 */
@keyframes page-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 스크롤 트리거 애니메이션 */
.section {
    transition: opacity 0.3s ease;
}

/* 이모지 애니메이션 */
h2::first-letter {
    display: inline-block;
    animation: emoji-bounce 2s ease-in-out infinite;
}

@keyframes emoji-bounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-5px) rotate(-10deg); }
    75% { transform: translateY(-3px) rotate(10deg); }
}

/* 호버시 텍스트 효과 */
.highlight-box p,
.highlight-box strong {
    position: relative;
    z-index: 1;
}

.highlight-box strong {
    transition: color 0.3s ease;
}

.highlight-box:hover strong {
    color: var(--primary-blue);
}

/* 타임라인 호버 효과 */
.timeline-item:hover {
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), transparent);
    border-left-color: var(--primary-purple);
}

.timeline-item p {
    transition: transform 0.3s ease;
}

.timeline-item:hover p {
    transform: translateX(5px);
}

/* CTA 하단 텍스트 애니메이션 */
.cta-bottom h2,
.cta-bottom p,
.cta-bottom .cta-button {
    position: relative;
    z-index: 1;
}

/* 반응형 유틸리티 클래스 */
.mobile-br {
    display: none;
}

.desktop-br {
    display: inline;
}

/* 반응형 - 태블릿 */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }

    .main-content {
        padding: 60px 40px;
    }

    h2 {
        font-size: 1.8em;
    }

    .info-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* 반응형 - 모바일 */
@media (max-width: 768px) {
    .mobile-br {
        display: inline;
    }

    .desktop-br {
        display: none;
    }

    .container {
        padding: 0 20px;
    }

    header {
        padding: 60px 20px 100px;
    }

    .logo-badge {
        font-size: 0.85em;
        padding: 6px 16px;
        margin-bottom: 20px;
    }

    h1 {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: 15px;
        line-height: 1.2;
    }

    .subtitle {
        font-size: 1.1em;
        margin-bottom: 30px;
        line-height: 1.5;
    }

    .subtitle br {
        display: block;
    }

    .cta-button {
        padding: 16px 40px;
        font-size: 1.1em;
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .main-content {
        padding: 40px 20px;
        margin-top: -60px;
        border-radius: 30px;
    }

    .section {
        margin-bottom: 50px;
    }

    h2 {
        font-size: 1.5em;
        margin-bottom: 20px;
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    h2::after {
        display: none;
    }

    /* 그리드 반응형 */
    .info-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .info-card {
        padding: 25px 20px;
        border-radius: 20px;
        text-align: center;
    }

    .info-card h3 {
        font-size: 1em;
    }

    .info-card p {
        font-size: 1em;
    }

    /* 트랙 카드 */
    .track-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .track-card {
        padding: 25px 20px;
    }

    .track-card h3 {
        font-size: 1.2em;
    }

    .track-card p {
        font-size: 0.95em;
    }

    /* 타임라인 */
    .timeline-item {
        padding-left: 20px;
        margin-left: 5px;
        padding-bottom: 30px;
    }

    .timeline-item h4 {
        font-size: 1.2em;
        margin-bottom: 12px;
    }

    .timeline-item p {
        font-size: 0.95em;
        line-height: 1.6;
    }

    .timeline-item::before {
        left: -8px;
        width: 13px;
        height: 13px;
    }

    /* 하이라이트 박스 */
    .highlight-box {
        padding: 25px 20px;
        border-radius: 20px;
        border-left-width: 5px;
        text-align: center;
    }

    .highlight-box p {
        font-size: 1em !important;
        line-height: 1.6;
    }

    /* 어워드 */
    .info-grid.award-container {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .award-item {
        padding: 25px 20px;
        min-width: auto;
        width: 100%;
        margin-bottom: 0;
    }

    .award-item h3 {
        font-size: 1.3em;
    }

    .award-item p {
        font-size: 0.95em;
    }

    /* CTA 하단 */
    .cta-bottom {
        padding: 50px 25px;
        margin-top: 40px;
        border-radius: 30px;
    }

    .cta-bottom h2 {
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    .cta-bottom p {
        font-size: 1em;
        margin-bottom: 25px !important;
    }

    footer {
        padding: 40px 20px;
        font-size: 0.85em;
    }

    footer p {
        margin-bottom: 10px;
        line-height: 1.6;
    }

    /* 모바일에서 애니메이션 단순화 */
    .info-card:hover {
        transform: translateY(-3px) scale(1);
    }

    .track-card:hover {
        transform: translateY(-5px) scale(1);
    }

    .award-item:hover {
        transform: translateY(-8px) scale(1.02) rotate(0deg);
    }

    .cta-button:hover {
        transform: translateY(-3px) scale(1.02);
    }

    /* 배경 애니메이션 성능 최적화 */
    body::before {
        animation: none;
    }

    header::before {
        animation: none;
    }
}

/* 반응형 - 작은 모바일 */
@media (max-width: 480px) {
    header {
        padding: 50px 15px 80px;
    }

    .logo-badge {
        font-size: 0.75em;
        padding: 5px 12px;
    }

    h1 {
        font-size: clamp(1.5rem, 7vw, 2rem);
        letter-spacing: -0.01em;
    }

    .subtitle {
        font-size: 1em;
    }

    .cta-button {
        padding: 14px 30px;
        font-size: 1em;
    }

    .main-content {
        padding: 30px 15px;
        margin-top: -50px;
        border-radius: 25px;
    }

    h2 {
        font-size: 1.3em;
    }

    .info-card,
    .track-card,
    .highlight-box {
        padding: 20px 15px;
    }

    .timeline-item {
        padding-left: 30px;
    }

    .cta-bottom {
        padding: 40px 20px;
    }

    .cta-bottom h2 {
        font-size: 1.3em;
    }

    footer {
        padding: 30px 15px;
        font-size: 0.8em;
    }
}

/* 모달 스타일 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 30px;
    padding: 50px 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    transform: scale(0.8) translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.modal-content::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-emoji {
    font-size: 4em;
    margin-bottom: 20px;
    animation: modal-emoji-bounce 1s ease-in-out infinite;
}

@keyframes modal-emoji-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.modal-title {
    font-size: 1.5em;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 20px;
    line-height: 1.4;
}

.modal-message {
    font-size: 1.1em;
    color: #475569;
    line-height: 1.8;
    margin-bottom: 30px;
}

.modal-message p {
    margin-bottom: 10px;
}

.modal-close-btn {
    display: inline-block;
    padding: 16px 50px;
    font-size: 1.1em;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.modal-close-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(124, 58, 237, 0.5);
}

@media (max-width: 768px) {
    .modal-content {
        padding: 40px 25px;
        border-radius: 25px;
    }

    .modal-emoji {
        font-size: 3em;
    }

    .modal-title {
        font-size: 1.3em;
    }

    .modal-message {
        font-size: 1em;
    }

    .modal-close-btn {
        padding: 14px 40px;
        font-size: 1em;
        width: 100%;
    }
}