/* CSS variables for Design System */
:root {
    /* Colors */
    --primary-color: #0064FF;
    /* Toss Blue */
    --secondary-color: #3182F6;
    /* Toss Light Blue */
    --bg-dark: #0F1012;
    /* Deep Dark */
    --card-bg: #1A1B1E;
    /* Dark Card */
    --text-primary: #FFFFFF;
    /* 헤드라인 */
    --text-secondary: #E5E8EB;
    /* 본문 */
    --text-tertiary: #B0B8C1;
    /* 부연 설명 */
    --text-quaternary: #8B95A1;
    /* 날짜 및 기타 */
    --white: #FFFFFF;

    /* Effects */
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    --font-heading: 'Pretendard', sans-serif;

    /* Spacing */
    --section-padding: 100px 24px;
    --container-max-width: 1040px;
    --radius-lg: 28px;
    --radius-md: 18px;
}


/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: rgba(15, 16, 18, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-overlay.active {
    right: 0;
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
    width: 100%;
}

.mobile-nav-links li {
    margin-bottom: 30px;
}

.mobile-nav-links a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    display: block;
    padding: 10px;
    transition: color 0.3s ease;
}

.mobile-nav-links a:hover {
    color: var(--secondary-color);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    word-break: normal;
    overflow-wrap: break-word;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-secondary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--white);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Common Background Utility */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    transform: translateY(-4px);
    background: #202124;
}

/* Main Section Spacing for Navigation */
main section {
    padding: var(--section-padding) !important;
    padding-top: 140px !important;
    /* 고정 헤더 높이만큼의 충분한 여백 확보 */
    min-height: 80vh;
}

#hero {
    padding: 0 !important;
    /* 히어로 섹션은 자체 중앙 정렬 유지 */
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 2.8rem);
    margin-bottom: 80px;
    position: relative;
    font-weight: 800;
    letter-spacing: -1px;
}

.section-title::after {
    display: none;
}

.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}


.program-card {
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.program-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 25px;
}

.program-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.program-card p {
    color: var(--text-tertiary);
    font-size: 1rem;
    line-height: 1.7;
}

/* Animations Expansion */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header & Nav */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 10px 0;
    background: rgba(15, 16, 18, 0.7);
    /* 반투명 배경 */
    backdrop-filter: blur(15px);
    /* 글래스모피즘 효과 */
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    /* 미세한 경계선 */
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    /* 로고 크기 축소 */
    font-weight: 800;
    color: var(--white) !important;
    letter-spacing: -0.5px;
    cursor: pointer;
}

.nav-links {
    display: flex;
    gap: 12px;
    align-items: center;
    /* 수직 정렬 맞춤 */
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: -0.3px;
    padding: 8px 12px;
    /* 카테고리 메뉴들도 일정한 영역 확보 */
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: var(--white);
}

/* Hero Section */
#hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background:
        linear-gradient(to bottom, rgba(2, 8, 23, 0.5), rgba(2, 8, 23, 0.8)),
        url('file:///C:/Users/User/.gemini/antigravity/brain/f0b65b41-3eba-4a97-8cb4-e5254cdbe499/guidance_clean_minimal_bg_1772957666378.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

/* Background Pattern Overlay */
#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(100, 255, 218, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
    z-index: 1;
}

#hero .container {
    position: relative;
    z-index: 2;
}

#hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    margin-bottom: 20px;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -1px;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

#hero h1 span.accent {
    color: var(--secondary-color);
    display: inline;
}

.sub-title {
    display: inline-block;
    color: var(--secondary-color);
    font-size: 0.95rem;
    font-weight: 700;
    background: rgba(49, 130, 246, 0.1);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s forwards;
}

#hero p {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 48px;
    line-height: 1.6;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.4s forwards;
}

.hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.6s forwards;
}


/* Hero Features */
.hero-features {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-top: 60px;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.8s forwards;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
}

.feature-item .emoji {
    font-size: 1.6rem;
}

.feature-item .info {
    display: flex;
    flex-direction: column;
}

.feature-item .info strong {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
    letter-spacing: -0.3px;
}

.feature-item .info span {
    font-size: 0.75rem;
    color: var(--text-quaternary);
    letter-spacing: -0.2px;
}

.feature-divider {
    width: 1px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
}


/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 36px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn.primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn.primary:hover {
    background: #0055D4;
    transform: scale(1.02);
}

.btn.accent {
    background: #3182F615;
    color: var(--secondary-color);
}

.btn.accent:hover {
    background: #3182F625;
    transform: scale(1.02);
}

/* Reviews Section */
#reviews {
    padding: var(--section-padding);
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}


.review-card {
    padding: 30px;
    border-left: 4px solid var(--secondary-color);
}


.review-text {
    font-style: italic;
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.review-author {
    display: flex;
    flex-direction: column;
}

.review-author .name {
    font-weight: 700;
    color: var(--secondary-color);
}

.review-author .role {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Footer Section */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
    background: #02060D;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-dim);
}

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

.copyright {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* Market & Portfolio Styles */
.content-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.market-item {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    transition: all 0.2s ease;
    border: 1px solid var(--glass-border);
}

.market-item:hover {
    background: #202124;
}

.market-item h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 12px;
    font-weight: 700;
}

.market-item p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.market-item small {
    display: block;
    color: var(--text-quaternary);
    font-size: 0.9rem;
}

.locked-content {
    text-align: center;
    padding: 80px 40px;
    margin: 40px 0;
}

.lock-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

/* Auth Card */
.auth-card {
    max-width: 500px;
    margin: 100px auto;
    padding: 40px;
    text-align: center;
}


.auth-card h2 {
    margin-bottom: 10px;
}

.auth-card p {
    color: var(--text-dim);
    margin-bottom: 30px;
}

.input-group {
    text-align: left;
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 15px;
    background: rgba(2, 12, 27, 0.5);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 4px;
    color: var(--white);
    outline: none;
}

.input-group input:focus {
    border-color: var(--secondary-color);
}

.full-width {
    width: 100%;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 12, 27, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    max-width: 900px;
    width: 90%;
    max-height: 85vh;
    padding: 50px;
    position: relative;
    text-align: left;
    overflow-y: auto;
    overflow-x: hidden;
    word-break: break-all;
    white-space: normal;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) transparent;
    border-radius: 30px;
}


.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 10px;
}

.close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-dim);
}

.donation-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

/* Review Image Placeholder */
.review-img-placeholder {
    width: 100%;
    height: 200px;
    background: rgba(100, 255, 218, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text-dim);
    font-size: 0.9rem;
    border: 1px dashed rgba(100, 255, 218, 0.2);
}

/* Navigation Button Highlight */
.nav-btn {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 7px 0;
    /* 버튼 높이 축소 */
    border-radius: 10px;
    font-weight: 700 !important;
    width: 85px;
    /* 너비 더 축소 */
    text-align: center;
    display: inline-block;
    transition: all 0.3s ease;
    font-size: 0.85rem !important;
    /* 버튼 폰트도 살짝 축소 */
}

.nav-btn:hover {
    background: #0055D4;
}

.btn.accent {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
}

/* My Page Specific */
.level-badge {
    padding: 6px 16px;
    background: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 1px;
}

.mypage-info-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.info-item label {
    color: var(--text-dim);
    font-size: 0.95rem;
}

.info-item span {
    color: var(--white);
    font-weight: 600;
}

/* Base Footer Overlap Fix */
#footer {
    margin-top: 0;
}

/* Sponsor Section */
.sponsor-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 0 20px;
    text-align: center;
}


.sponsor-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
    color: var(--white);
}

.sponsor-header p {
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 40px;
}

.sponsor-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 32px;
    text-align: left;
    backdrop-filter: blur(10px);
}

.bank-info {
    background: #0a192f;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 32px;
    border: 1px dashed rgba(0, 100, 255, 0.3);
}

.bank-info h3 {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 700;
}

.account-number {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--white);
}

.input-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 12px;
}

.amount-input-wrapper {
    position: relative;
    margin-bottom: 24px;
}

.amount-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px 40px 16px 16px;
    color: var(--white);
    font-size: 1.4rem;
    font-weight: 700;
    text-align: right;
    outline: none;
    transition: all 0.3s ease;
}

.amount-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 100, 255, 0.1);
}

.currency {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: var(--text-dim);
}

.quick-amounts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 32px;
}

.quick-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 12px;
    color: #ccd6f6;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.submit-btn {
    width: 100%;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 14px;
    padding: 18px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 100, 255, 0.2);
}

.submit-btn:hover {
    background: #0055d4;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 100, 255, 0.3);
}

.notice-text {
    font-size: 0.8rem;
    color: #555e7d;
    margin-top: 16px;
    text-align: center;
}

/* ==========================================================================
   FINAL MOBILE OPTIMIZATION (Media Queries)
   Placed at the bottom to ensure highest priority over base styles.
   ========================================================================== */
/* =========================================
   📱 모바일 뷰 최적화 (768px 이하 스마트폰/태블릿)
   ========================================= */
@media screen and (max-width: 768px) {

    /* 1. 헤더 및 네비게이션 (PC메뉴 숨기고 햄버거 버튼 노출) */
    .nav-links {
        display: none !important;
    }

    .mobile-toggle {
        display: flex !important;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
    }

    .mobile-toggle span {
        width: 25px;
        height: 3px;
        background-color: var(--white, #fff);
        border-radius: 3px;
    }

    /* 2. 전체 섹션 및 컨테이너 여백 축소 */
    section {
        padding: 60px 15px !important;
    }

    .container {
        padding: 0 15px !important;
    }

    /* 3. 메인 히어로 섹션 (버튼 세로 정렬 등) */
    .hero-content h1 {
        font-size: 2.5rem !important;
    }

    .hero-btns {
        flex-direction: column !important;
        width: 100%;
        gap: 10px;
    }

    .hero-btns .btn {
        width: 100% !important;
        text-align: center;
    }

    .hero-features {
        flex-direction: column !important;
        gap: 20px !important;
    }

    .feature-divider {
        display: none !important;
        /* 모바일에서는 가로 구분선 숨김 */
    }

    /* 4. 각종 그리드 (프로그램, 시황, 히든종목, 후기) -> 1줄로 세로 배치 */
    .program-grid,
    .content-grid,
    .review-grid,
    #review-list {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    /* 5. 폼 및 카드 UI 꽉 차게 변경 */
    .auth-card,
    .sponsor-card {
        width: 100% !important;
        padding: 30px 20px !important;
    }

    /* 6. 모달(상세보기 팝업) 꽉 차게 변경 */
    .modal-content {
        width: 90% !important;
        margin: 20% auto !important;
        padding: 24px 20px !important;
    }

    #pd-image-container img {
        width: 100% !important;
        /* 히든종목 이미지 모바일 꽉 차게 */
    }

    /* 7. 푸터 레이아웃 세로 정렬 */
    .footer-content {
        flex-direction: column !important;
        text-align: center;
        gap: 15px;
    }

    .footer-links {
        justify-content: center !important;
    }
}