/**
 * CoinUpHub Mobile Responsive CSS
 * 그리드 네비게이션 + 반응형 스타일
 */

/* ========== 모바일 그리드 네비게이션 ========== */
.mobile-grid-nav {
    display: none;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    padding: 12px 16px;
    background: #0d0e10;
    border-bottom: 1px solid #252830;
    position: sticky;
    top: 56px;
    z-index: 99;
}

.mobile-grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 4px;
    background: #16181d;
    border: 1px solid #252830;
    border-radius: 8px;
    color: #9ca3af;
    text-decoration: none;
    font-size: 10px;
    font-weight: 500;
    text-align: center;
    transition: all 0.15s;
    min-height: 58px;
}

.mobile-grid-item i {
    font-size: 16px;
}

.mobile-grid-item span {
    line-height: 1.2;
    word-break: keep-all;
}

.mobile-grid-item.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: #10b981;
    color: #10b981;
}

.mobile-grid-item:active {
    transform: scale(0.95);
    background: #1a1d24;
}

/* ========== 태블릿 (1200px 이하) ========== */
@media (max-width: 1200px) {
    .main-grid,
    .content-grid {
        grid-template-columns: 1fr !important;
    }
    
    .config-panel,
    .sidebar {
        position: static !important;
        width: 100% !important;
    }
    
    .kpi-bar {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 12px !important;
        padding: 12px 16px !important;
    }
    
    .summary-grid,
    .stats-grid,
    .coin-grid,
    .usdt-compare {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .tips-grid,
    .risk-warning {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ========== 모바일 (768px 이하) ========== */
@media (max-width: 768px) {
    /* 모바일 그리드 네비게이션 표시 */
    .mobile-grid-nav {
        display: grid !important;
    }
    
    /* 데스크톱 네비게이션 숨김 */
    .nav-tabs {
        display: none !important;
    }
    
    /* 헤더 모바일 최적화 */
    .header {
        height: auto !important;
        min-height: 50px !important;
        padding: 10px 16px !important;
    }
    
    .header-left {
        gap: 12px !important;
    }
    
    .logo {
        gap: 8px !important;
    }
    
    .logo span {
        font-size: 14px !important;
    }
    
    .logo-badge {
        font-size: 9px !important;
        padding: 2px 6px !important;
    }
    
    .logo i {
        font-size: 18px !important;
    }
    
    /* 환율 표시 숨김 */
    .exchange-rate {
        display: none !important;
    }
    
    /* 컨테이너 */
    .container {
        padding: 16px !important;
    }
    
    /* 페이지 타이틀 */
    h1 {
        font-size: 20px !important;
    }
    
    .subtitle {
        font-size: 13px !important;
    }
    
    /* KPI 바 */
    .kpi-bar {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px !important;
        padding: 12px !important;
    }
    
    .kpi-item {
        padding: 12px !important;
    }
    
    .kpi-value {
        font-size: 18px !important;
    }
    
    .kpi-label {
        font-size: 11px !important;
    }
    
    /* 그리드 레이아웃 */
    .grid,
    .summary-grid,
    .stats-grid,
    .coin-grid,
    .exchange-grid,
    .route-grid,
    .result-grid,
    .tips-grid,
    .usdt-compare {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    
    /* 카드 */
    .card,
    .info-box,
    .result-card,
    .exchange-card {
        padding: 16px !important;
        border-radius: 12px !important;
    }
    
    .card-header {
        padding: 12px 16px !important;
    }
    
    .card-body {
        padding: 16px !important;
    }
    
    /* 테이블 */
    .table-container {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        margin: 0 -16px !important;
        padding: 0 16px !important;
    }
    
    table {
        min-width: 600px !important;
        font-size: 12px !important;
    }
    
    th, td {
        padding: 10px 8px !important;
        white-space: nowrap !important;
    }
    
    /* 폼 요소 */
    input, select, textarea {
        font-size: 16px !important; /* iOS 줌 방지 */
        padding: 12px !important;
        border-radius: 8px !important;
    }
    
    button, .btn {
        min-height: 44px !important;
        font-size: 14px !important;
        padding: 12px 16px !important;
    }
    
    /* 코인 선택 버튼 */
    .coin-selector {
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    
    .coin-btn {
        padding: 8px 12px !important;
        font-size: 12px !important;
        min-width: auto !important;
    }
    
    /* 차트 */
    .chart-container,
    canvas {
        height: 200px !important;
        max-height: 200px !important;
    }
    
    /* 라이브 배지 */
    .live-badge {
        font-size: 11px !important;
        padding: 6px 10px !important;
    }
    
    /* 업데이트 시간 */
    .update-time {
        font-size: 11px !important;
    }
    
    /* 수익률 표시 */
    .rate-display {
        font-size: 24px !important;
    }
    
    /* 경로 표시 */
    .route-display {
        font-size: 12px !important;
        flex-wrap: wrap !important;
        gap: 4px !important;
    }
    
    .route-step {
        padding: 6px 10px !important;
    }
    
    /* 링크 그리드 */
    .check-links {
        grid-template-columns: 1fr !important;
    }
    
    .check-link {
        padding: 12px !important;
        font-size: 13px !important;
    }
    
    /* 설정 패널 */
    .config-section {
        padding: 16px !important;
    }
    
    .config-title {
        font-size: 14px !important;
    }
    
    /* 결과 요약 */
    .summary-value {
        font-size: 20px !important;
    }
    
    .summary-label {
        font-size: 11px !important;
    }
    
    /* 거래소 로고 */
    .exchange-logo {
        width: 32px !important;
        height: 32px !important;
        font-size: 14px !important;
    }
    
    .exchange-name {
        font-size: 14px !important;
    }
    
    /* 가격 정보 */
    .price-info {
        font-size: 13px !important;
    }
    
    .price-value {
        font-size: 16px !important;
    }
    
    /* 탭 네비게이션 (페이지 내) */
    .tab-nav {
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    
    .tab-btn {
        padding: 8px 12px !important;
        font-size: 12px !important;
        flex: 1 1 auto !important;
        min-width: calc(50% - 3px) !important;
    }
    
    /* 백테스트 관련 */
    .scenario-card {
        padding: 16px !important;
    }
    
    .ai-response {
        font-size: 13px !important;
        line-height: 1.6 !important;
    }
}

/* ========== 소형 모바일 (480px 이하) ========== */
@media (max-width: 480px) {
    /* 그리드 3열로 변경 */
    .mobile-grid-nav {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 5px !important;
        padding: 10px 12px !important;
    }
    
    .mobile-grid-item {
        padding: 8px 2px !important;
        font-size: 9px !important;
        min-height: 52px !important;
    }
    
    .mobile-grid-item i {
        font-size: 14px !important;
    }
    
    /* 헤더 더 작게 */
    .header {
        padding: 8px 12px !important;
        min-height: 44px !important;
    }
    
    .logo span {
        font-size: 13px !important;
    }
    
    .logo i {
        font-size: 16px !important;
    }
    
    .logo-badge {
        display: none !important;
    }
    
    /* 컨테이너 */
    .container {
        padding: 12px !important;
    }
    
    /* 타이틀 */
    h1 {
        font-size: 18px !important;
    }
    
    h2 {
        font-size: 16px !important;
    }
    
    h3 {
        font-size: 14px !important;
    }
    
    /* KPI */
    .kpi-bar {
        grid-template-columns: 1fr 1fr !important;
        gap: 6px !important;
        padding: 10px !important;
    }
    
    .kpi-item {
        padding: 10px !important;
    }
    
    .kpi-value {
        font-size: 16px !important;
    }
    
    /* 카드 */
    .card,
    .info-box {
        padding: 12px !important;
        border-radius: 10px !important;
    }
    
    /* 폰트 크기 */
    body {
        font-size: 13px !important;
    }
    
    /* 버튼 */
    .coin-btn {
        padding: 6px 10px !important;
        font-size: 11px !important;
    }
    
    /* 테이블 */
    table {
        font-size: 11px !important;
    }
    
    th, td {
        padding: 8px 6px !important;
    }
    
    /* 차트 */
    .chart-container,
    canvas {
        height: 180px !important;
    }
    
    /* 수익률 */
    .rate-display {
        font-size: 20px !important;
    }
    
    /* 경로 */
    .route-step {
        padding: 4px 8px !important;
        font-size: 11px !important;
    }
}

/* ========== 초소형 모바일 (360px 이하) ========== */
@media (max-width: 360px) {
    .mobile-grid-nav {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 4px !important;
        padding: 8px 10px !important;
    }
    
    .mobile-grid-item {
        padding: 6px 2px !important;
        font-size: 8px !important;
        min-height: 48px !important;
    }
    
    .mobile-grid-item i {
        font-size: 12px !important;
    }
    
    .header {
        padding: 6px 10px !important;
    }
    
    .logo span {
        font-size: 12px !important;
    }
    
    .container {
        padding: 10px !important;
    }
    
    h1 {
        font-size: 16px !important;
    }
}

/* ========== 터치 최적화 ========== */
@media (hover: none) and (pointer: coarse) {
    /* 터치 기기에서 버튼 크기 최소 44px */
    button,
    .btn,
    .nav-tab,
    .mobile-grid-item,
    .coin-btn,
    .check-link,
    .tab-btn,
    a[class*="btn"] {
        min-height: 44px !important;
    }
    
    /* 터치 하이라이트 */
    .mobile-grid-item:active,
    .coin-btn:active,
    button:active {
        opacity: 0.8;
    }
    
    /* 스크롤 개선 */
    .table-container {
        -webkit-overflow-scrolling: touch;
    }
}

/* ========== 가로 모드 ========== */
@media (max-height: 500px) and (orientation: landscape) {
    .mobile-grid-nav {
        grid-template-columns: repeat(7, 1fr) !important;
        gap: 4px !important;
        padding: 6px 12px !important;
        top: 40px !important;
    }
    
    .mobile-grid-item {
        flex-direction: row !important;
        gap: 6px !important;
        padding: 6px 8px !important;
        min-height: 36px !important;
    }
    
    .mobile-grid-item i {
        font-size: 12px !important;
    }
    
    .mobile-grid-item span {
        font-size: 10px !important;
    }
    
    .header {
        min-height: 40px !important;
        padding: 6px 12px !important;
    }
}

/* ========== 인쇄 모드 ========== */
@media print {
    .mobile-grid-nav,
    .nav-tabs {
        display: none !important;
    }
    
    .header {
        position: static !important;
    }
}