/*
 * ============================================================
 * AutoTrading - 프로 트레이딩 UI 디자인 시스템 (Premium v3)
 * Bloomberg / TradingView / Binance 스타일 다크 테마
 * ============================================================
 * Version: 3.0.0 (Premium Upgrade)
 * 최종 수정: 2026-02-16
 * ============================================================
 */

/* ============================================================
   0. Google Fonts CDN
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;600;700&display=swap');

/* ============================================================
   1. CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
    /* --- 배경 --- */
    --bg-primary:       #0a0e17;
    --bg-secondary:     #131722;
    --bg-tertiary:      #1e222d;
    --bg-elevated:      #252a37;
    --bg-hover:         #2a2e3d;
    --bg-active:        #323648;

    /* --- 수익/손실 (상승/하락) --- */
    --color-profit:     #26a69a;
    --color-profit-bright: #00e676;
    --color-profit-bg:  rgba(38, 166, 154, 0.12);
    --color-profit-bg-hover: rgba(38, 166, 154, 0.20);

    --color-loss:       #ef5350;
    --color-loss-bright: #ff1744;
    --color-loss-bg:    rgba(239, 83, 80, 0.12);
    --color-loss-bg-hover: rgba(239, 83, 80, 0.20);

    /* --- 강조 --- */
    --color-accent:     #2196f3;
    --color-accent-hover: #42a5f5;
    --color-accent-bg:  rgba(33, 150, 243, 0.12);
    --color-gold:       #ffd54f;
    --color-gold-bg:    rgba(255, 213, 79, 0.12);
    --color-purple:     #ab47bc;
    --color-purple-bg:  rgba(171, 71, 188, 0.12);
    --color-orange:     #ff9800;
    --color-orange-bg:  rgba(255, 152, 0, 0.12);

    /* --- 텍스트 --- */
    --text-primary:     #d1d4dc;
    --text-secondary:   #787b86;
    --text-tertiary:    #555862;
    --text-highlight:   #ffffff;
    --text-disabled:    #434651;

    /* --- 보더 --- */
    --border-primary:   #2a2e39;
    --border-secondary: #363a45;
    --border-hover:     #434651;
    --border-accent:    #2196f3;

    /* --- 간격 --- */
    --space-xs:   4px;
    --space-sm:   8px;
    --space-md:   12px;
    --space-lg:   16px;
    --space-xl:   20px;
    --space-2xl:  24px;
    --space-3xl:  32px;
    --space-4xl:  40px;
    --space-5xl:  48px;

    /* --- 폰트 --- */
    --font-ui:    'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:  'JetBrains Mono', 'Roboto Mono', 'Fira Code', monospace;
    --font-kr:    'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;

    /* --- 폰트 크기 --- */
    --text-xs:    11px;
    --text-sm:    12px;
    --text-base:  13px;
    --text-md:    14px;
    --text-lg:    16px;
    --text-xl:    18px;
    --text-2xl:   24px;
    --text-3xl:   32px;
    --text-4xl:   40px;

    /* --- 라인 높이 --- */
    --leading-tight:  1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* --- 모서리 --- */
    --radius-xs:  4px;
    --radius-sm:  6px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;
    --radius-full: 9999px;

    /* --- 그림자 --- */
    --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl:  0 12px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow-accent: 0 0 20px rgba(33, 150, 243, 0.15);
    --shadow-glow-profit: 0 0 20px rgba(38, 166, 154, 0.15);
    --shadow-glow-loss:   0 0 20px rgba(239, 83, 80, 0.15);

    /* --- 트랜지션 --- */
    --transition-fast:   0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow:   0.3s ease;

    /* --- z-index --- */
    --z-dropdown:  100;
    --z-sticky:    200;
    --z-fixed:     300;
    --z-modal:     400;
    --z-toast:     500;

    /* --- 사이드바 --- */
    --sidebar-width:     240px;
    --sidebar-collapsed: 60px;

    /* --- 네비게이션 --- */
    --navbar-height:     52px;
    --tab-height:        44px;

    /* --- 프리미엄: 그래디언트 --- */
    --gradient-primary: linear-gradient(135deg, #2196f3, #1976d2);
    --gradient-profit: linear-gradient(135deg, #26a69a, #00897b);
    --gradient-loss: linear-gradient(135deg, #ef5350, #e53935);
    --gradient-gold: linear-gradient(135deg, #ffd54f, #ffb300);
    --gradient-purple: linear-gradient(135deg, #ab47bc, #8e24aa);

    /* --- 프리미엘: 글래스모르피즘 --- */
    --glass-bg: rgba(19, 23, 34, 0.85);
    --glass-border: rgba(255, 255, 255, 0.06);

    /* --- 프리미엄: 호환성 별칭 --- */
    --border-color: var(--border-primary);
    --text-muted: var(--text-tertiary);
}

/* ============================================================
   2. 감소된 모션 설정
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================
   3. 리셋 & 기본 스타일
   ============================================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-ui);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--leading-normal);
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
}

::selection {
    background: rgba(33, 150, 243, 0.3);
    color: var(--text-highlight);
}


/* ============================================================
   4. 커스텀 스크롤바 (다크 테마)
   ============================================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

::-webkit-scrollbar-corner {
    background: var(--bg-primary);
}

/* Firefox 스크롤바 */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-secondary) var(--bg-primary);
}


/* ============================================================
   5. 레이아웃
   ============================================================ */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}

.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* --- 사이드바 --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow);
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    height: calc(100vh - var(--navbar-height));
    position: sticky;
    top: var(--navbar-height);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-primary);
    font-weight: 600;
    font-size: var(--text-md);
    color: var(--text-highlight);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-sm) 0;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-secondary);
    font-size: var(--text-base);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    white-space: nowrap;
}

.sidebar-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-item.active {
    background: var(--color-accent-bg);
    color: var(--color-accent);
    border-left-color: var(--color-accent);
}

.sidebar-item .icon {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

/* --- 메인 콘텐츠 --- */
.main-content {
    flex: 1;
    overflow-y: auto;
    height: calc(100vh - var(--navbar-height));
    padding: var(--space-xl);
}

.main-content-full {
    flex: 1;
    overflow-y: auto;
    height: calc(100vh - var(--navbar-height));
    padding: var(--space-xl);
    max-width: 100%;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-xl);
}

/* --- 반응형 그리드 --- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

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

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

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

/* Flex 유틸리티 */
.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.flex-wrap  { flex-wrap: wrap; }
.items-center   { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-sm     { gap: var(--space-sm); }
.gap-md     { gap: var(--space-md); }
.gap-lg     { gap: var(--space-lg); }
.gap-xl     { gap: var(--space-xl); }


/* ============================================================
   6. 네비게이션 (상단 바)
   ============================================================ */
.navbar {
    height: var(--navbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
    position: sticky;
    top: 0;
    z-index: var(--z-fixed);
    backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 1px 0 0 rgba(33,150,243,0.1), 0 4px 20px rgba(0,0,0,0.3);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.5px;
}

.navbar-brand .brand-sub {
    color: var(--color-gold);
    font-size: var(--text-sm);
    font-weight: 500;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.navbar-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.navbar-status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-profit);
    animation: pulse-dot 2s infinite;
}

.navbar-status .status-dot.offline {
    background: var(--color-loss);
    animation: none;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* --- 탭 네비게이션 (수평) --- */
.nav-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-secondary);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.nav-tabs::-webkit-scrollbar {
    height: 0;
}

.nav-tab {
    padding: var(--space-md) var(--space-xl);
    color: var(--text-secondary);
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: transparent;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
    position: relative;
    font-family: var(--font-ui);
}

.nav-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.nav-tab.active {
    color: var(--color-accent);
    border-bottom: 2px solid transparent;
    background: linear-gradient(180deg, transparent 0%, var(--color-accent-bg) 100%);
    border-bottom-color: var(--color-accent);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* --- 서브탭 --- */
.sub-tabs {
    display: flex;
    gap: var(--space-xs);
    padding: var(--space-sm) 0;
    margin-bottom: var(--space-lg);
}

.sub-tab {
    padding: var(--space-sm) var(--space-lg);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-family: var(--font-ui);
}

.sub-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.sub-tab.active {
    color: var(--text-highlight);
    background: var(--bg-tertiary);
}


/* ============================================================
   7. 카드
   ============================================================ */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.card:hover {
    border-color: var(--border-secondary);
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(33,150,243,0.08);
    border-top: 2px solid transparent;
    border-image: linear-gradient(90deg, rgba(33,150,243,0.3), transparent) 1;
}

.card-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: var(--text-md);
    color: var(--text-primary);
}

.card-header .card-title {
    font-weight: 600;
    font-size: var(--text-md);
    color: var(--text-primary);
}

.card-header .card-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.card-body {
    padding: var(--space-xl);
}

.card-footer {
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid var(--border-primary);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* --- 통계 카드 --- */
.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(33,150,243,0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
}

.stat-card:hover {
    border-color: var(--border-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card .stat-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.stat-card .stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-highlight);
    line-height: var(--leading-tight);
    font-variant-numeric: tabular-nums;
    text-shadow: 0 0 30px rgba(255,255,255,0.1);
}

.stat-card .stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    margin-top: var(--space-sm);
    font-variant-numeric: tabular-nums;
}

.stat-card .stat-change.up {
    color: var(--color-profit);
}

.stat-card .stat-change.down {
    color: var(--color-loss);
}

.stat-card .stat-sub {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

/* 통계 카드 - 색상 액센트 테두리 */
.stat-card.accent-profit {
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--color-profit), transparent) 1;
    box-shadow: -4px 0 12px rgba(38,166,154,0.15);
}

.stat-card.accent-loss {
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--color-loss), transparent) 1;
    box-shadow: -4px 0 12px rgba(239,83,80,0.15);
}

.stat-card.accent-blue {
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--color-accent), transparent) 1;
    box-shadow: -4px 0 12px rgba(33,150,243,0.15);
}

.stat-card.accent-gold {
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--color-gold), transparent) 1;
    box-shadow: -4px 0 12px rgba(255,213,79,0.15);
}

/* --- 시세 카드 (마켓 카드) --- */
.market-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.market-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.market-card .market-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.market-card .market-name {
    font-size: var(--text-md);
    font-weight: 600;
    color: var(--text-primary);
}

.market-card .market-code {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.market-card .market-price-area {
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
}

.market-card .market-price {
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-highlight);
    font-variant-numeric: tabular-nums;
}

.market-card .market-change {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}


/* ============================================================
   8. 데이터 테이블
   ============================================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-base);
}

.data-table th {
    text-align: left;
    padding: var(--space-md) var(--space-lg);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 1px solid var(--border-primary);
    background: linear-gradient(180deg, rgba(30,34,45,0.8), rgba(30,34,45,0.4));
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table td {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-primary);
    color: var(--text-primary);
    vertical-align: middle;
    font-variant-numeric: tabular-nums;
    transition: all var(--transition-fast);
}

.data-table tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--bg-hover);
    border-left: 2px solid var(--color-accent);
    padding-left: -2px;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* 숫자 열 우측 정렬 */
.data-table .col-number {
    text-align: right;
    font-family: var(--font-mono);
}

/* 컴팩트 테이블 */
.data-table.compact th,
.data-table.compact td {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
}

/* 줄무늬 테이블 */
.data-table.striped tbody tr:nth-child(even) {
    background: rgba(30, 34, 45, 0.8);
}


/* ============================================================
   9. 가격/수치 표시
   ============================================================ */
.price {
    font-family: var(--font-mono);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.3px;
}

.price-up {
    color: var(--color-profit);
}

.price-down {
    color: var(--color-loss);
}

.price-neutral {
    color: var(--text-secondary);
}

/* 등락률 뱃지 */
.change-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-xs);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    line-height: 1.4;
    transition: all var(--transition-fast);
}

.change-badge.up {
    color: var(--color-profit);
    background: var(--color-profit-bg);
}

.change-badge.down {
    color: var(--color-loss);
    background: var(--color-loss-bg);
}

.change-badge.neutral {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

/* P&L 색상 */
.pnl-positive {
    color: var(--color-profit);
    font-family: var(--font-mono);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.pnl-negative {
    color: var(--color-loss);
    font-family: var(--font-mono);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* 큰 가격 표시 (대시보드 헤더 등) */
.price-display {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--text-highlight);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.5px;
}

.price-display-sm {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-highlight);
    font-variant-numeric: tabular-nums;
}


/* ============================================================
   10. 버튼
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    line-height: 1.5;
    -webkit-user-select: none;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Primary */
.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(33,150,243,0.1);
}

.btn-primary:hover {
    background: var(--gradient-primary);
    border-color: var(--color-accent-hover);
    box-shadow: 0 0 30px rgba(33,150,243,0.3);
    transform: translateY(-2px);
}

/* Danger / Sell */
.btn-danger {
    background: var(--gradient-loss);
    color: #ffffff;
    border-color: var(--color-loss);
    box-shadow: 0 0 15px rgba(239,83,80,0.1);
}

.btn-danger:hover {
    background: var(--gradient-loss);
    border-color: var(--color-loss-bright);
    box-shadow: 0 0 30px rgba(239,83,80,0.3);
    transform: translateY(-2px);
}

/* Success / Buy */
.btn-success {
    background: var(--gradient-profit);
    color: #ffffff;
    border-color: var(--color-profit);
    box-shadow: 0 0 15px rgba(38,166,154,0.1);
}

.btn-success:hover {
    background: var(--gradient-profit);
    border-color: var(--color-profit-bright);
    box-shadow: 0 0 30px rgba(38,166,154,0.3);
    transform: translateY(-2px);
}

/* Warning */
.btn-warning {
    background: var(--color-orange);
    color: #000000;
    border-color: var(--color-orange);
    box-shadow: 0 0 15px rgba(255,152,0,0.1);
}

.btn-warning:hover {
    background: #ffb74d;
    border-color: #ffb74d;
    box-shadow: 0 0 30px rgba(255,152,0,0.3);
    transform: translateY(-2px);
}

/* Ghost / Secondary */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-primary);
    transition: all var(--transition-fast);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

/* Outline */
.btn-outline {
    background: transparent;
    border-color: var(--border-secondary);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

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

.btn-outline.btn-primary:hover {
    background: var(--color-accent-bg);
}

.btn-outline.btn-danger {
    color: var(--color-loss);
    border-color: var(--color-loss);
    background: transparent;
}

.btn-outline.btn-danger:hover {
    background: var(--color-loss-bg);
}

.btn-outline.btn-success {
    color: var(--color-profit);
    border-color: var(--color-profit);
    background: transparent;
}

.btn-outline.btn-success:hover {
    background: var(--color-profit-bg);
}

/* 크기 변형 */
.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-md) var(--space-2xl);
    font-size: var(--text-md);
    border-radius: var(--radius-md);
}

/* 아이콘 버튼 */
.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

/* 버튼 그룹 */
.btn-group {
    display: inline-flex;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.btn-group .btn {
    border-radius: 0;
    border-right-width: 0;
}

.btn-group .btn:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border-right-width: 1px;
}


/* ============================================================
   11. 폼 요소
   ============================================================ */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--border-secondary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(33,150,243,0.15);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-input.mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23787b86' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

/* 인라인 폼 */
.form-inline {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.form-inline .form-group {
    margin-bottom: 0;
}

/* 검색 입력 */
.search-input {
    position: relative;
}

.search-input .form-input {
    padding-left: 36px;
}

.search-input .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--text-md);
    pointer-events: none;
}

/* --- 토글 스위치 --- */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch .toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.toggle-switch .toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(33,150,243,0.3);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
    background: #ffffff;
}


/* ============================================================
   12. 뱃지 / 태그
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-xs);
    font-size: var(--text-xs);
    font-weight: 600;
    line-height: 1.5;
    white-space: nowrap;
    backdrop-filter: blur(4px);
}

/* 매매 신호 뱃지 */
.badge-buy {
    color: var(--color-profit);
    background: linear-gradient(135deg, var(--color-profit-bg), rgba(38,166,154,0.08));
}

.badge-sell {
    color: var(--color-loss);
    background: linear-gradient(135deg, var(--color-loss-bg), rgba(239,83,80,0.08));
}

.badge-hold {
    color: var(--color-gold);
    background: var(--color-gold-bg);
}

/* 상태 뱃지 */
.badge-status {
    padding: 3px var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.badge-status.active {
    color: var(--color-profit);
    background: var(--color-profit-bg);
}

.badge-status.inactive {
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
}

.badge-status.warning {
    color: var(--color-orange);
    background: var(--color-orange-bg);
}

.badge-status.error {
    color: var(--color-loss);
    background: var(--color-loss-bg);
}

/* 점 포함 뱃지 */
.badge-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.badge-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.badge-dot.active::before { background: var(--color-profit); }
.badge-dot.inactive::before { background: var(--text-tertiary); }
.badge-dot.warning::before { background: var(--color-orange); }
.badge-dot.error::before { background: var(--color-loss); }
.badge-dot.info::before { background: var(--color-accent); }

/* 기타 뱃지 색상 */
.badge-accent {
    color: var(--color-accent);
    background: var(--color-accent-bg);
}

.badge-purple {
    color: var(--color-purple);
    background: var(--color-purple-bg);
}

.badge-gold {
    color: var(--color-gold);
    background: var(--color-gold-bg);
}


/* ============================================================
   13. 프로그레스 / 로딩
   ============================================================ */

/* 프로그레스 바 */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    position: relative;
}

.progress-fill.profit {
    background: var(--gradient-profit);
}

.progress-fill.loss {
    background: var(--gradient-loss);
}

/* 프로그레스 바 - 애니메이션 (학습 중 등) */
.progress-fill.animated {
    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-accent-hover),
        var(--color-accent)
    );
    background-size: 200% 100%;
    animation: progress-shimmer 1.5s ease infinite;
}

@keyframes progress-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* 프로그레스 바 - 라벨 포함 */
.progress-labeled {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.progress-labeled .progress-bar {
    flex: 1;
}

.progress-labeled .progress-text {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    min-width: 40px;
    text-align: right;
}

/* 로딩 스피너 */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-primary);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.sm {
    width: 14px;
    height: 14px;
    border-width: 2px;
}

.spinner.lg {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 스켈레톤 로딩 */
.skeleton {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.04),
        transparent
    );
    animation: skeleton-shimmer 1.5s ease infinite;
}

@keyframes skeleton-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.skeleton-text {
    height: 14px;
    margin-bottom: var(--space-sm);
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-value {
    height: 28px;
    width: 100px;
}

.skeleton-chart {
    height: 200px;
}


/* ============================================================
   14. 차트 컨테이너
   ============================================================ */
.chart-container {
    position: relative;
    width: 100%;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.chart-container canvas {
    width: 100% !important;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.chart-title {
    font-size: var(--text-md);
    font-weight: 600;
    color: var(--text-primary);
}

.chart-legend {
    display: flex;
    gap: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.chart-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* 미니 스파크라인 */
.sparkline {
    display: inline-block;
    width: 80px;
    height: 24px;
    vertical-align: middle;
}

.sparkline canvas {
    width: 100%;
    height: 100%;
}


/* ============================================================
   15. 알림 / 토스트
   ============================================================ */
.toast-container {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    font-size: var(--text-base);
    color: var(--text-primary);
    pointer-events: all;
    animation: toast-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 300px;
    max-width: 480px;
    backdrop-filter: blur(10px);
}

.toast.toast-out {
    animation: toast-out 0.3s ease forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(400px) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0) translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateX(0) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(400px) translateY(-20px);
    }
}

.toast-icon {
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: var(--text-md);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

.toast-success {
    border-left: 3px solid var(--color-profit);
}

.toast-success .toast-icon {
    color: var(--color-profit);
}

.toast-error {
    border-left: 3px solid var(--color-loss);
}

.toast-error .toast-icon {
    color: var(--color-loss);
}

.toast-warning {
    border-left: 3px solid var(--color-orange);
}

.toast-warning .toast-icon {
    color: var(--color-orange);
}

.toast-info {
    border-left: 3px solid var(--color-accent);
}

.toast-info .toast-icon {
    color: var(--color-accent);
}


/* ============================================================
   16. 탭 콘텐츠
   ============================================================ */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: slide-up-fade 0.3s ease forwards;
}

.main-tab-content {
    display: none;
}

.main-tab-content.active {
    display: block;
    animation: slide-up-fade 0.3s ease forwards;
}


/* ============================================================
   17. 섹션 / 패널
   ============================================================ */
.section {
    margin-bottom: var(--space-2xl);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-highlight);
}

.section-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-xl);
    transition: all var(--transition-fast);
}

.panel:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(33,150,243,0.08);
}

.panel-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: var(--text-md);
}

.panel-body {
    padding: var(--space-xl);
}


/* ============================================================
   18. 분리자 / 구분선
   ============================================================ */
.divider {
    border: none;
    border-top: 1px solid var(--border-primary);
    margin: var(--space-lg) 0;
}

.divider-vertical {
    width: 1px;
    background: var(--border-primary);
    align-self: stretch;
    margin: 0 var(--space-md);
}


/* ============================================================
   19. 모달 / 다이얼로그
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(16px) saturate(180%);
}

.modal-overlay.open .modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-header {
    padding: var(--space-xl);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-highlight);
}

.modal-body {
    padding: var(--space-xl);
}

.modal-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}


/* ============================================================
   20. 툴팁
   ============================================================ */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--text-primary);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow-md);
}

[data-tooltip]:hover::after {
    opacity: 1;
}


/* ============================================================
   21. 유틸리티 클래스
   ============================================================ */

/* 텍스트 색상 */
.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary  { color: var(--text-tertiary); }
.text-highlight { color: var(--text-highlight); }
.text-accent    { color: var(--color-accent); }
.text-profit    { color: var(--color-profit); }
.text-loss      { color: var(--color-loss); }
.text-gold      { color: var(--color-gold); }
.text-purple    { color: var(--color-purple); }

/* 텍스트 스타일 */
.font-mono  { font-family: var(--font-mono); }
.font-ui    { font-family: var(--font-ui); }
.font-bold  { font-weight: 700; }
.font-semi  { font-weight: 600; }
.font-medium { font-weight: 500; }
.tabular-nums { font-variant-numeric: tabular-nums; }

/* 텍스트 크기 */
.text-xs  { font-size: var(--text-xs); }
.text-sm  { font-size: var(--text-sm); }
.text-base-size { font-size: var(--text-base); }
.text-md  { font-size: var(--text-md); }
.text-lg  { font-size: var(--text-lg); }
.text-xl  { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

/* 텍스트 정렬 */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

/* 간격 유틸리티 */
.mt-0  { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0  { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.p-sm  { padding: var(--space-sm); }
.p-md  { padding: var(--space-md); }
.p-lg  { padding: var(--space-lg); }
.p-xl  { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

/* 디스플레이 */
.hidden   { display: none; }
.block    { display: block; }
.inline   { display: inline; }
.flex     { display: flex; }

/* 오버플로우 */
.overflow-auto   { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }

/* 너비 */
.w-full { width: 100%; }
.w-auto { width: auto; }

/* 투명도 */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* 말줄임 */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 숨기기 (접근성 유지) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 빈 상태 */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    color: var(--text-secondary);
}

/* 상태 색상 */
.positive { color: var(--color-profit); }
.negative { color: var(--color-loss); }

/* 프리미엄: 글래스모르피즘 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

/* 프리미엄: 글로우 효과 */
.glow-accent {
    box-shadow: var(--shadow-glow-accent);
}

.glow-profit {
    box-shadow: var(--shadow-glow-profit);
}

.glow-loss {
    box-shadow: var(--shadow-glow-loss);
}

/* 프리미엄: 그래디언트 텍스트 */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 프리미엄: 애니메이션 클래스 */
.animate-in {
    animation: slide-up-fade 0.3s ease forwards;
}

.pulse-live {
    animation: glow-pulse 2s ease infinite;
}

.ring-accent {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}


/* ============================================================
   22. 반응형 브레이크포인트
   ============================================================ */

/* 1440px 이하 */
@media (max-width: 1440px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
    .grid-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 1024px 이하 (태블릿) */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-6 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: var(--navbar-height);
        z-index: var(--z-fixed);
        transform: translateX(-100%);
        box-shadow: var(--shadow-xl);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content,
    .main-content-full {
        margin-left: 0;
        height: calc(100vh - var(--navbar-height));
    }

    .container {
        padding: 0 var(--space-lg);
    }
}

/* 768px 이하 (모바일) */
@media (max-width: 768px) {
    :root {
        --space-xl: 16px;
        --space-2xl: 20px;
    }

    .grid-4,
    .grid-6,
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .nav-tabs {
        padding: 0 var(--space-sm);
    }

    .nav-tab {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--text-sm);
    }

    .stat-card .stat-value {
        font-size: var(--text-xl);
    }

    .main-content,
    .main-content-full {
        padding: var(--space-lg);
    }

    .data-table {
        font-size: var(--text-sm);
    }

    .data-table th,
    .data-table td {
        padding: var(--space-sm) var(--space-md);
    }

    .modal {
        width: 95%;
        max-height: 90vh;
    }

    .toast-container {
        right: var(--space-md);
        left: var(--space-md);
    }

    .toast {
        min-width: auto;
    }
}

/* 480px 이하 (소형 모바일) */
@media (max-width: 480px) {
    .grid-4,
    .grid-6,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .navbar {
        padding: 0 var(--space-md);
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        border-radius: 0;
        border-right-width: 1px;
        border-bottom-width: 0;
    }

    .btn-group .btn:first-child {
        border-radius: var(--radius-md) var(--radius-md) 0 0;
    }

    .btn-group .btn:last-child {
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        border-bottom-width: 1px;
    }
}

/* 1920px+ (대형 모니터) */
@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
    }

    .grid-auto {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}


/* ============================================================
   23. 키프레임 애니메이션
   ============================================================ */

/* 글로우 펄스 */
@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 5px rgba(33,150,243,0.2); }
    50% { box-shadow: 0 0 20px rgba(33,150,243,0.4); }
}

/* 슬라이드 업 페이드 */
@keyframes slide-up-fade {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 보더 글로우 */
@keyframes border-glow {
    0%, 100% { border-color: rgba(33,150,243,0.3); }
    50% { border-color: rgba(33,150,243,0.6); }
}

/* 깜박임 (실시간 데이터 업데이트) */
@keyframes flash-green {
    0%, 100% { background-color: transparent; }
    50% { background-color: var(--color-profit-bg); }
}

@keyframes flash-red {
    0%, 100% { background-color: transparent; }
    50% { background-color: var(--color-loss-bg); }
}

.flash-up {
    animation: flash-green 0.4s ease;
}

.flash-down {
    animation: flash-red 0.4s ease;
}

/* 페이드 인/아웃 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in  { animation: fadeIn 0.2s ease; }
.animate-slide-up { animation: slideUp 0.2s ease; }
.animate-slide-down { animation: slideDown 0.2s ease; }


/* ============================================================
   24. Chart.js 다크 테마 오버라이드
   ============================================================ */
.chart-container {
    --chart-grid-color: rgba(42, 46, 57, 0.8);
    --chart-text-color: var(--text-secondary);
    --chart-tooltip-bg: var(--bg-elevated);
    --chart-tooltip-border: var(--border-secondary);
}


/* ============================================================
   25. 특수 컴포넌트 - AI 학습 모니터링
   ============================================================ */
.training-status {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}

.training-status.running {
    border-left-color: var(--color-profit);
}

.training-status.error {
    border-left-color: var(--color-loss);
}

.training-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
}

.training-step.completed {
    color: var(--color-profit);
}

.training-step.running {
    color: var(--color-accent);
    background: var(--color-accent-bg);
}

.training-step.pending {
    color: var(--text-tertiary);
}

/* 메트릭 그리드 (모델 성능 지표) */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-md);
}

.metric-item {
    text-align: center;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.metric-item:hover {
    background: var(--bg-hover);
    transform: translateY(-2px);
}

.metric-item .metric-value {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-highlight);
    font-variant-numeric: tabular-nums;
}

.metric-item .metric-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}


/* ============================================================
   26. 특수 컴포넌트 - 시세/호가
   ============================================================ */

/* 호가창 스타일 */
.orderbook-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-xs);
    padding: 2px var(--space-sm);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-variant-numeric: tabular-nums;
    transition: background var(--transition-fast);
}

.orderbook-row:hover {
    background: var(--bg-hover);
}

.orderbook-row .ask {
    color: var(--color-loss);
    text-align: right;
}

.orderbook-row .bid {
    color: var(--color-profit);
}

.orderbook-row .price-col {
    text-align: center;
    color: var(--text-primary);
    font-weight: 600;
}

/* 볼륨 바 배경 */
.volume-bar-ask {
    background: linear-gradient(to left, var(--color-loss-bg), transparent);
}

.volume-bar-bid {
    background: linear-gradient(to right, var(--color-profit-bg), transparent);
}

/* 종목 리스트 아이템 */
.stock-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.stock-item:hover {
    background: var(--bg-hover);
}

.stock-item:last-child {
    border-bottom: none;
}

.stock-item .stock-name {
    font-weight: 500;
    color: var(--text-primary);
}

.stock-item .stock-code {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.stock-item .stock-price {
    font-family: var(--font-mono);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}


/* ============================================================
   27. 로그인 페이지 스타일
   ============================================================ */
.login-page body,
body.login-body {
    background: linear-gradient(135deg, #0a0e17 0%, #131722 40%, #1a1040 100%);
    background-attachment: fixed;
}

.login-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 40px rgba(33,150,243,0.1);
    max-width: 420px;
    width: 100%;
}

.login-button {
    background: var(--gradient-primary);
    color: #ffffff;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-2xl);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 0 20px rgba(33,150,243,0.15);
    width: 100%;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(33,150,243,0.3);
}

.login-input {
    background: rgba(10, 14, 23, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-primary);
    font-family: var(--font-ui);
    width: 100%;
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
}

.login-input:focus {
    border-color: var(--color-accent);
    background: rgba(10, 14, 23, 0.8);
    box-shadow: 0 0 0 3px rgba(33,150,243,0.15);
}

.login-input::placeholder {
    color: var(--text-tertiary);
}


/* ============================================================
   28. 인쇄 스타일
   ============================================================ */
@media print {
    body {
        background: #ffffff;
        color: #000000;
    }

    .sidebar,
    .navbar,
    .toast-container,
    .btn {
        display: none !important;
    }

    .card,
    .panel,
    .stat-card {
        border: 1px solid #ccc;
        box-shadow: none;
    }

    .data-table th,
    .data-table td {
        border: 1px solid #ccc;
    }
}