:root {
    /* Modern Color Palette */
    --primary: #FF6B35;
    --primary-dark: #E55A28;
    --primary-light: #FF8F66;
    --secondary: #2563EB;
    --accent-green: #10B981;
    --accent-mint: #00C8B0;
    --accent-lime: #84CC16;

    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Container - Responsive */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 640px) {
    .container {
        padding: 0 24px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 32px;
    }
}

/* Navigation */
.nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo img {
    height: 28px;
    width: auto;
}

.nav-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-600);
    padding-left: 10px;
    border-left: 1px solid var(--gray-300);
    white-space: nowrap;
}

@media (min-width: 640px) {
    .nav-title {
        font-size: 13px;
    }
}

@media (min-width: 768px) {
    .nav-logo img {
        height: 36px;
    }

    .nav-title {
        font-size: 14px;
        padding-left: 12px;
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 호주장터 Featured Button */
.nav-link-featured {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: linear-gradient(135deg, #FFF7ED, #FFEDD5);
    border: 1px solid #FDBA74;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-link-featured:hover {
    background: linear-gradient(135deg, #FFEDD5, #FED7AA);
    border-color: #FB923C;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(251, 146, 60, 0.25);
}

.nav-link-icon {
    font-size: 16px;
}

.nav-link-text {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-dark);
}

.nav-link-badge {
    display: none;
    font-size: 9px;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    padding: 2px 6px;
    border-radius: var(--radius-full);
}

@media (min-width: 480px) {
    .nav-link-badge {
        display: block;
    }
}

@media (min-width: 768px) {
    .nav-link-featured {
        padding: 8px 14px;
        gap: 8px;
    }

    .nav-link-icon {
        font-size: 18px;
    }

    .nav-link-text {
        font-size: 14px;
    }

    .nav-link-badge {
        font-size: 10px;
        padding: 2px 8px;
    }
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

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

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

@media (min-width: 768px) {
    .nav-inner {
        height: 64px;
    }

    .nav-logo img {
        height: 36px;
    }

    .nav-link {
        padding: 10px 16px;
        font-size: 15px;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 40px 0 48px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    backdrop-filter: blur(4px);
}

.hero h1 {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
}

.hero p {
    font-size: 15px;
    opacity: 0.9;
    max-width: 400px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .hero {
        padding: 64px 0 80px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero p {
        font-size: 18px;
        max-width: 500px;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: 80px 0 100px;
    }

    .hero h1 {
        font-size: 52px;
    }

    .hero p {
        font-size: 20px;
    }
}

/* Section */
.section {
    padding: 32px 0;
}

.section-header {
    margin-bottom: 24px;
}

.section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.section-subtitle {
    font-size: 14px;
    color: var(--gray-500);
}

@media (min-width: 768px) {
    .section {
        padding: 48px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }
}

@media (min-width: 1024px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }
}

/* Featured Banner - 호주장터 */
.featured-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: 20px;
    text-decoration: none;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s, box-shadow 0.3s;
}

.featured-banner:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.featured-banner-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.featured-banner-content h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.featured-banner-content p {
    font-size: 13px;
    opacity: 0.9;
}

.featured-banner-arrow {
    margin-left: auto;
    font-size: 24px;
    opacity: 0.8;
}

@media (min-width: 768px) {
    .featured-banner {
        padding: 32px;
        gap: 24px;
    }

    .featured-banner-icon {
        width: 72px;
        height: 72px;
        font-size: 36px;
    }

    .featured-banner-content h2 {
        font-size: 28px;
    }

    .featured-banner-content p {
        font-size: 16px;
    }
}

/* App Grid - Responsive */
.app-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 640px) {
    .app-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (min-width: 1024px) {
    .app-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
}

/* App Card */
.app-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.app-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--gray-300);
}

.app-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.app-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    object-fit: contain;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    padding: 4px;
    background: var(--white);
}

.app-card-info {
    flex: 1;
    min-width: 0;
}

.app-card-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.app-card-tag {
    font-size: 12px;
    color: var(--gray-500);
}

.app-card-discount {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}

.app-card-desc {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.5;
    flex-grow: 1;
}

.app-card-desc strong {
    color: var(--primary);
    font-weight: 600;
}

.app-card-stats {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--gray-600);
}

.app-card-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.app-card-stat-icon {
    font-size: 14px;
}

.app-card-stat-value {
    font-weight: 600;
    color: var(--gray-800);
}

.app-card-btn {
    display: block;
    width: 100%;
    padding: 12px 16px;
    background: var(--gray-900);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.app-card-btn:hover {
    background: var(--gray-700);
    transform: translateY(-1px);
}

.app-card-btn.green {
    background: var(--accent-green);
}

.app-card-btn.green:hover {
    background: #059669;
}

.app-card-btn.mint {
    background: var(--accent-mint);
}

.app-card-btn.mint:hover {
    background: #00a896;
}

.app-card-btn.lime {
    background: var(--accent-lime);
}

.app-card-btn.lime:hover {
    background: #65a30d;
}

.app-card-btn.orange {
    background: var(--primary);
}

.app-card-btn.orange:hover {
    background: var(--primary-dark);
}

.app-card-btn.red {
    background: #DC2626;
}

.app-card-btn.red:hover {
    background: #B91C1C;
}

.app-card-btns {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

@media (min-width: 768px) {
    .app-card {
        padding: 24px;
    }

    .app-card-icon {
        width: 56px;
        height: 56px;
    }

    .app-card-name {
        font-size: 18px;
    }

    .app-card-desc {
        font-size: 15px;
    }
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (min-width: 640px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
}

@media (min-width: 768px) {
    .info-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .info-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
}

.info-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 16px;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s;
}

.info-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.info-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #FFF7ED 0%, #FEF3C7 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 8px;
}

.info-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.info-card-desc {
    font-size: 11px;
    color: var(--gray-500);
    line-height: 1.3;
}

@media (min-width: 768px) {
    .info-card {
        padding: 20px;
    }

    .info-card-icon {
        width: 56px;
        height: 56px;
        font-size: 28px;
    }

    .info-card-title {
        font-size: 15px;
    }

    .info-card-desc {
        font-size: 12px;
    }
}

/* Chat Grid */
.chat-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 640px) {
    .chat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .chat-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
}

.chat-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 16px;
    text-decoration: none;
    transition: all 0.2s;
}

.chat-card:hover {
    background: #FFFBEB;
    border-color: #FCD34D;
    transform: translateY(-2px);
}

.chat-card-icon {
    width: 44px;
    height: 44px;
    background: #FEE500;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.chat-card-content {
    flex: 1;
    min-width: 0;
}

.chat-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-card-meta {
    font-size: 12px;
    color: var(--gray-500);
}

.chat-card-arrow {
    color: var(--gray-400);
    font-size: 16px;
}

/* Footer */
.footer {
    background: var(--gray-800);
    color: var(--gray-400);
    padding: 32px 0;
    margin-top: 48px;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}

.footer-logo img {
    height: 28px;
    filter: brightness(0) invert(1);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    font-size: 13px;
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-copyright {
    font-size: 12px;
}

@media (min-width: 768px) {
    .footer {
        padding: 48px 0;
        margin-top: 64px;
    }

    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}
/* Nav User Profile */
.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

.nav-user-img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--gray-300);
}

.nav-user-icon {
    font-size: 20px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    border: 1px solid var(--gray-300);
}

.nav-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: none;
}

.nav-link.logout {
    font-size: 12px;
    padding: 4px 10px;
    background: var(--gray-200);
    color: var(--gray-600);
    border-radius: var(--radius-full);
    margin-left: 4px;
}

.nav-link.logout:hover {
    background: var(--gray-300);
    color: var(--gray-800);
}

@media (min-width: 640px) {
    .nav-user-name {
        display: block;
    }
}