/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes zoomIn {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.1);
    }
}

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ==========================================================================
   Global & Layout
   ========================================================================== */
.main-container {
    max-width: 1440px;
    margin: 0 auto;
    margin-top: clamp(40vh, 60vh, 600px);
}

.main-section {
    padding: var(--space-16) 0;
    border-bottom: 1px solid var(--gray-200);
}

.main-section:last-child {
    border-bottom: none;
}

.main-section__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--gray-900);
}

.main-section__title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.main-section__icon {
    font-size: var(--text-2xl);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
}

.main-section__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
    color: var(--gray-900);
}

.main-section__description {
    color: var(--gray-500);
    font-size: var(--text-base);
}

.main-section__more-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-4);
    border: none;
    background: transparent;
    position: relative;
}

.main-section__more-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

.main-section__more-btn:hover::after {
    width: 100%;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.main-hero {
    height: clamp(40vh, 60vh, 600px);
    overflow: hidden;
    position: absolute;
    top: 63px;
    left: 0;
    right: 0;
    width: 100%;
}

.main-hero__slider {
    height: 100%;
    position: relative;
}

.main-hero__slides {
    height: 100%;
    position: relative;
}

.main-hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background-size: cover;
    background-position: center;
    transition: opacity 0.8s ease;
}

.main-hero__slide--active {
    opacity: 1;
    animation: zoomIn 10s ease-out forwards;
}

.main-hero__slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: none;
}

.main-hero__content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    width: 100%;
    padding: 0 var(--space-4);
    z-index: 1;
}

.main-hero__subtitle {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    opacity: 0;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.main-hero__slide--active .main-hero__subtitle {
    animation: fadeInUp 1s ease-out 0.3s forwards;
}

.main-hero__title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    opacity: 0;
    background: linear-gradient(90deg, #fff 0%, #ffd700 25%, #fff 50%, #ffd700 75%, #fff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.main-hero__slide--active .main-hero__title {
    animation: fadeInScale 1s ease-out 0.6s forwards, shimmer 3s linear 1.6s infinite;
}

.main-hero__date,
.main-hero__location {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

/* Slick Customization */
.main-hero__controls {
    position: absolute;
    bottom: var(--space-8);
    left: 0;
    right: 0;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
}

.main-hero__indicators {
    display: flex;
    gap: var(--space-2);
}

.main-hero__indicator {
    width: 40px;
    height: 3px;
    background: rgb(255 255 255 / 0.5);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.main-hero__indicator--active {
    background: var(--white);
}

.main-hero__buttons {
    margin-left: var(--space-4);
}

.main-hero__button {
    width: var(--space-6);
    height: var(--space-6);
    border: none;
    background: none;
    color: var(--white);
    cursor: pointer;
    padding: 0;
}

/* ==========================================================================
   Quick Links Section
   ========================================================================== */
.quick-links {
    margin-bottom: var(--space-16);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.quick-links__group {
    padding: 0;
    margin-bottom: var(--space-12);
}

.quick-links__title {
    text-align: center;
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
    color: var(--gray-700);
}

.quick-links__buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.quick-link__button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-8) var(--space-4);
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 120px;
}

.quick-link__button:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.quick-link__button i {
    font-size: 48px;
    transition: transform 0.2s ease;
}

.quick-link__button:hover i {
    transform: scale(1.1);
}

.quick-link__button span {
    text-align: center;
    line-height: 1.4;
}

/* Process Section - Option C Style */
.process-section {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-top: 4rem !important;
    margin-bottom: var(--space-8);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);

    /* 그라데이션 테두리 효과 */
    border: 3px solid transparent;
    background-clip: padding-box;
}

.process-section::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: var(--radius-lg);
    background: linear-gradient(
            90deg,
            #4A90E2 0%,      /* 파란색 */
            #FF8C42 25%,     /* 주황색 */
            #00CBA9 50%,     /* 청록색 */
            #9B51E0 75%,     /* 보라색 */
            #4A90E2 100%     /* 파란색 */
    );
    background-size: 300% 100%;
    z-index: -1;
    animation: gradient-flow 4s ease infinite;
}

.process-section::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: var(--radius-lg);
    background: inherit;
    z-index: -2;
    filter: blur(10px);
    opacity: 0.5;
    animation: border-glow 2s ease-in-out infinite;
}

.process-section__title {
    color: var(--gray-900);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--gray-200);
}

.process-section__title::before {
    content: '';
    width: 5px;
    height: 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin-right: var(--space-4);
    border-radius: 3px;
    flex-shrink: 0;
}

.process-section__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.process-section__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-8) var(--space-4);
    color: var(--white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 120px;
    position: relative;
}

/* 로그인 버튼 - 파란색 */
.process-section__item:nth-child(1) {
    background: linear-gradient(135deg, #667eea 0%, #4A90E2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* 선수관리 버튼 - 주황색 */
.process-section__item:nth-child(2) {
    background: linear-gradient(135deg, #FF8C42 0%, #FF6B35 100%);
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.4);
}

/* 대회목록(참가신청) 버튼 - 청록색 */
.process-section__item:nth-child(3) {
    background: linear-gradient(135deg, #00CBA9 0%, #00A896 100%);
    box-shadow: 0 4px 15px rgba(0, 203, 169, 0.4);
}

/* 참가현황 버튼 - 보라색 */
.process-section__item:nth-child(4) {
    background: linear-gradient(135deg, #9B51E0 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(155, 81, 224, 0.4);
}

.process-section__item::after {
    content: '>';
    position: absolute;
    right: calc(-1 * var(--space-6) / 2 - 10px);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--text-2xl);
    color: var(--gray-300);
    font-weight: bold;
    z-index: 1;
}

.process-section__item:last-child::after {
    display: none;
}

.process-section__item:hover {
    transform: translateY(-8px);
}

/* 로그인 버튼 호버 효과 */
.process-section__item:nth-child(1):hover {
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.6);
    filter: brightness(1.1);
}

/* 선수관리 버튼 호버 효과 */
.process-section__item:nth-child(2):hover {
    box-shadow: 0 12px 30px rgba(255, 140, 66, 0.6);
    filter: brightness(1.1);
}

/* 대회목록 버튼 호버 효과 */
.process-section__item:nth-child(3):hover {
    box-shadow: 0 12px 30px rgba(0, 203, 169, 0.6);
    filter: brightness(1.1);
}

/* 참가현황 버튼 호버 효과 */
.process-section__item:nth-child(4):hover {
    box-shadow: 0 12px 30px rgba(155, 81, 224, 0.6);
    filter: brightness(1.1);
}

.process-section__icon {
    font-size: 48px;
    transition: transform 0.3s ease;
    color: var(--white);
}

.process-section__item:hover .process-section__icon {
    transform: scale(1.15);
}

.process-section__label {
    text-align: center;
    line-height: 1.4;
}

/* ==========================================================================
   Board Section
   ========================================================================== */
.main-boards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-8);
}

.main-boards--three {
    gap: var(--space-6);
}

.main-board {
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.main-board__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--gray-900);
}

.main-board__title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.main-board__icon {
    font-size: var(--text-xl);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
}

.main-board__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
}

.main-board__more-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    font-size: var(--text-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.main-board__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    height: calc(32px * 4 + var(--space-3) * 3);
    min-height: calc(32px * 4 + var(--space-3) * 3);
}

.main-board__item {
    padding: var(--space-2) 0;
}

.main-board__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--gray-900);
    text-decoration: none;
    width: 100%;
}

.main-board__text {
    max-width: 300px;
    flex: 1;
    min-width: 0;
    font-size: var(--text-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.main-board__date {
    flex-shrink: 0;
    color: var(--gray-500);
    font-size: var(--text-sm);
    margin-left: auto;
    padding-left: var(--space-4);
}

/* ==========================================================================
   Card Section
   ========================================================================== */
.main-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    min-height: 203px;
}

.main-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    height: 100%;
}

.main-card__content {
    padding: var(--space-6);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.main-card__header {
    margin-bottom: var(--space-4);
}

.main-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.main-card__meta {
    margin-top: auto;
    margin-bottom: var(--space-4);
}

.main-card__date,
.main-card__location {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
}

.main-card__date i,
.main-card__location i {
    color: var(--primary);
    width: var(--space-4);
}

.main-card__btn {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--primary);
    border-radius: var(--radius-base);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    background: var(--white);
    color: var(--primary);
    transition: all var(--transition-base);
}

.main-card__btn:hover {
    background: var(--primary);
    color: var(--white);
}

.main-card__btn--closed {
    border-color: var(--gray-400);
    color: var(--gray-500);
}

.main-card__btn--closed:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* ==========================================================================
   Video Section
   ========================================================================== */
.main-videos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    min-height: 220px;
}

.main-video {
    aspect-ratio: 16/9;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
}

.main-video__thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.main-video__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--white);
}

.main-video__title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.main-video__category {
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* ==========================================================================
   Gallery Carousel
   ========================================================================== */
.gallery-carousel {
    position: relative;
    overflow: hidden;
}

.gallery-carousel__container {
    overflow: hidden;
    padding: var(--space-2) 0;
}

.gallery-carousel__track {
    display: flex;
    gap: var(--space-4);
    animation: scroll-left 30s linear infinite;
}

.gallery-carousel__track:hover {
    animation-play-state: paused;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.gallery-carousel__item {
    flex: 0 0 calc(33.333% - var(--space-4));
    aspect-ratio: 16/9;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gallery-carousel__item:hover {
    transform: scale(1.05);
    z-index: 1;
}

.gallery-carousel__image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-carousel__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--white);
}

.gallery-carousel__title {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gallery-carousel__button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    color: var(--gray-900);
    cursor: pointer;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.gallery-carousel__button:hover {
    background: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.gallery-carousel__button--prev {
    left: var(--space-4);
}

.gallery-carousel__button--next {
    right: var(--space-4);
}

.gallery-carousel__button i {
    font-size: var(--text-xl);
}

.gallery-carousel__empty {
    padding: var(--space-16);
    text-align: center;
    color: var(--gray-500);
}

/* ==========================================================================
   Map & Location
   ========================================================================== */
.map-container {
    height: 400px;
    margin-bottom: var(--space-4);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.location-info {
    background: var(--gray-50);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
}

/* ==========================================================================
   Popup Styles
   ========================================================================== */
.main-popup {
    position: fixed;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: 0 var(--space-1) 6px -1px rgb(0 0 0 / 0.1), 0 2px var(--space-1) -1px rgba(0, 0, 0, 0.06);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    max-width: calc(100vw - 40px);
    max-height: calc(100vh - 40px);
    will-change: transform;
}

.main-popup__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    cursor: move;
}

.main-popup__title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
}

.main-popup__close {
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: var(--space-2);
}

.main-popup__content {
    padding: var(--space-4);
    overflow: auto;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-popup__image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.main-popup__footer {
    padding: var(--space-4);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-popup__checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.main-popup__close-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-base);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.main-popup__close-btn:hover {
    background: var(--gray-200);
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 1024px) {
    .main-cards,
    .main-videos {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-boards--three {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-carousel__item {
        flex: 0 0 calc(50% - var(--space-4));
    }
}

@media (max-width: 768px) {
    /* Layout */
    .main-container {
        margin-top: 40vh;
    }

    .main-section {
        padding: var(--space-10) 0;
    }

    .main-section__more-btn {
        padding: var(--space-2) 0;
    }

    /* Hero */
    .main-hero {
        height: clamp(25vh, 40vh, 600px);
    }

    .main-hero__title {
        font-size: var(--text-2xl);
    }

    .main-hero__subtitle {
        font-size: var(--text-lg);
    }

    .main-hero__content {
        padding: 0 var(--space-4);
        width: 100%;
    }

    /* Quick Links */
    .quick-links {
        margin-bottom: 0;
    }

    .quick-links__group {
        margin-bottom: 0;
    }

    .quick-links__title {
        font-size: var(--text-base);
        margin-bottom: var(--space-4);
    }

    .quick-links__buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }

    .quick-link__button {
        min-height: 80px;
        padding: var(--space-4) var(--space-2);
        font-size: var(--text-sm);
    }

    .quick-link__button i {
        font-size: var(--text-xl);
    }

    /* Process Section Mobile */
    .process-section {
        padding: var(--space-6) var(--space-4);
        margin-bottom: var(--space-6);
    }

    .process-section__title {
        font-size: var(--text-lg);
        margin-bottom: var(--space-4);
    }

    .process-section__title::before {
        height: 24px;
        margin-right: var(--space-3);
    }

    .process-section__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .process-section__item {
        min-height: 100px;
        padding: var(--space-6) var(--space-3);
        font-size: var(--text-sm);
    }

    .process-section__item::after {
        display: none;
    }

    .process-section__icon {
        font-size: 36px;
    }

    /* Boards */
    .main-boards,
    .main-boards--three {
        grid-template-columns: 1fr;
    }

    .main-board {
        padding: var(--space-4);
    }

    .main-board__text {
        max-width: 57vw;
    }

    .main-board__list {
        gap: var(--space-1);
        height: calc(32px * 4 + var(--space-1) * 3);
        min-height: calc(32px * 4 + var(--space-1) * 3);
    }

    /* Cards/Videos */
    .main-cards,
    .main-videos {
        grid-template-columns: 1fr;
    }

    /* Gallery */
    .gallery-carousel__item {
        flex: 0 0 100%;
        aspect-ratio: 16/10;
    }
}