/* ============================================================
 * 모의 선물거래소 - 다크 테마 (Binance perp 스타일)
 * 컬러: 블랙 + 일렉트릭 퍼플(#a259ff) 포커스 + 롱 그린/숏 레드
 * ============================================================ */
:root {
    --fx-bg-0: #0a0c10;
    --fx-bg-1: #11141a;
    --fx-bg-2: #181c23;
    --fx-bg-3: #1f242c;
    --fx-line: #2a313a;
    --fx-line-2: #3a424c;
    --fx-ink-0: #ffffff;
    --fx-ink-1: #eaecef;
    --fx-ink-2: #b7bdc6;
    --fx-ink-3: #848e9c;
    --fx-accent: #a259ff;       /* 일렉트릭 퍼플 (선물 식별 컬러) */
    --fx-accent-2: #c490ff;
    --fx-green: #0ecb81;
    --fx-green-dim: #089f6b;
    --fx-red: #f6465d;
    --fx-red-dim: #cf304a;
}

.fx-wrap {
    max-width: 1280px;
    margin: 16px auto 48px;
    padding: 0 16px;
    color: var(--fx-ink-1);
    width: 100%;
}

/* 풀와이드 모드 — fx-fullscreen 은 JS로, spk-dark-shell 은 PHP로 추가됨. 둘 다 매치 */
body.fx-fullscreen .spk-sidebar,
body.fx-fullscreen .spk-sidebar-right { display: none !important; }
body.fx-fullscreen .spk-shell,
body.fx-fullscreen .spk-shell:has(.spk-sidebar-right) {
    grid-template-columns: 1fr !important;
    max-width: 100% !important;
    width: 100% !important;
    background: #0a0c10;
}
body.fx-fullscreen .spk-main { width: 100% !important; }
body.fx-fullscreen .fx-wrap { max-width: 100%; padding: 0; margin: 0; }
body.fx-fullscreen .spk-side-banner { display: none !important; }


/* ============================================================
 * 헤더 — 롱(녹)/숏(빨) 듀얼 톤
 * ============================================================ */
.fx-header {
    background:
        linear-gradient(90deg, rgba(246, 70, 93, .14) 0%, rgba(11, 14, 17, 0) 40%, rgba(11, 14, 17, 0) 60%, rgba(14, 203, 129, .14) 100%),
        linear-gradient(180deg, var(--fx-bg-2) 0%, var(--fx-bg-1) 100%);
    border: 1px solid var(--fx-line);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    position: relative;
}
.fx-header::before,
.fx-header::after {
    content: ''; position: absolute; top: 0; bottom: 0; width: 3px;
}
.fx-header::before { left: 0; background: linear-gradient(180deg, var(--fx-red), transparent); }
.fx-header::after  { right: 0; background: linear-gradient(180deg, var(--fx-green), transparent); }

.fx-header-inner {
    padding: 22px 28px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
}
.fx-brand { display: flex; align-items: center; gap: 16px; }
.fx-brand-logo {
    width: 56px; height: 56px;
    border-radius: 50%;
    background:
        conic-gradient(from 180deg at 50% 50%,
            var(--fx-red) 0deg, var(--fx-red-dim) 180deg,
            var(--fx-green-dim) 180deg, var(--fx-green) 360deg);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; color: #fff;
    box-shadow: 0 6px 24px rgba(246, 70, 93, .25), 0 6px 24px rgba(14, 203, 129, .25);
    text-shadow: 0 2px 6px rgba(0,0,0,.5);
}
.fx-brand-txt b {
    font-size: 22px; color: var(--fx-ink-0); font-weight: 900; letter-spacing: -.01em;
    display: inline-flex; align-items: center; gap: 8px;
}
.fx-brand-tag {
    font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 6px;
    background: linear-gradient(90deg, var(--fx-red), var(--fx-green));
    color: #fff; letter-spacing: .05em;
    box-shadow: 0 2px 6px rgba(0,0,0,.3);
}
.fx-brand-txt small { display: block; font-size: 12px; color: var(--fx-ink-3); margin-top: 4px; }

.fx-brand-wallet {
    text-align: right;
    background: linear-gradient(135deg, rgba(246, 70, 93, .08), rgba(14, 203, 129, .08));
    border: 1px solid;
    border-image: linear-gradient(135deg, rgba(246, 70, 93, .35), rgba(14, 203, 129, .35)) 1;
    border-radius: 10px;
    padding: 10px 16px;
}
.fx-wallet-label { font-size: 11px; color: var(--fx-ink-3); display: block; }
.fx-wallet-amount {
    font-size: 18px; font-weight: 800;
    background: linear-gradient(90deg, var(--fx-red), var(--fx-green));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 탭 — 활성 시 롱/숏 듀얼 라인 */
.fx-tabs {
    display: flex; flex-wrap: wrap;
    background: var(--fx-bg-1);
    border-top: 1px solid var(--fx-line);
}
.fx-tab {
    flex: 1; min-width: 120px;
    padding: 14px 20px;
    color: var(--fx-ink-2);
    text-decoration: none;
    text-align: center;
    border-bottom: 3px solid transparent;
    display: flex; justify-content: center; align-items: center; gap: 8px;
    transition: all .15s;
    font-weight: 600; font-size: 14px;
}
.fx-tab:hover { color: var(--fx-ink-0); background: rgba(255,255,255,.03); }
.fx-tab.is-active {
    color: var(--fx-ink-0);
    border-image: linear-gradient(90deg, var(--fx-red), var(--fx-green)) 1;
    border-bottom-width: 3px;
    background: linear-gradient(180deg, transparent 0%, rgba(246, 70, 93, .05) 50%, rgba(14, 203, 129, .05) 100%);
}
.fx-tab-ic { font-size: 18px; }

/* ============================================================
 * 메인
 * ============================================================ */
.fx-main { min-height: 70vh; }
.fx-empty {
    text-align: center; padding: 60px 20px;
    background: var(--fx-bg-1); border: 1px solid var(--fx-line); border-radius: 12px;
    color: var(--fx-ink-3);
}
.fx-empty .fx-btn { margin-top: 14px; }

/* ============================================================
 * 거래소 - 상단바
 * ============================================================ */
.fx-ex-topbar {
    background: var(--fx-bg-1);
    border: 1px solid var(--fx-line);
    border-radius: 12px;
    padding: 14px 20px;
    margin-bottom: 16px;
    display: grid;
    grid-template-columns: 220px 1fr 280px;
    gap: 16px;
    align-items: center;
}
.fx-ex-select {
    width: 100%;
    background: var(--fx-bg-2);
    color: var(--fx-ink-0);
    border: 1px solid var(--fx-line-2);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px; font-weight: 700;
}
.fx-ex-stats { display: flex; gap: 28px; flex-wrap: wrap; }
.fx-ex-stat span { display: block; font-size: 11px; color: var(--fx-ink-3); }
.fx-ex-stat strong { font-size: 16px; color: var(--fx-ink-0); font-weight: 700; }
.fx-ex-stat strong.is-up { color: var(--fx-green); }
.fx-ex-stat strong.is-down { color: var(--fx-red); }
.fx-ex-rate-info {
    background: rgba(162, 89, 255, .06);
    border: 1px solid rgba(162, 89, 255, .25);
    border-radius: 8px; padding: 10px 14px;
    font-size: 12px;
}
.fx-rate-head { display: flex; align-items: center; gap: 6px; color: var(--fx-accent-2); }
.fx-rate-icon { font-size: 16px; }
.fx-rate-example { color: var(--fx-ink-3); margin-top: 4px; }

/* ============================================================
 * 거래소 - 3컬럼 그리드
 * ============================================================ */
.fx-ex-grid {
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    gap: 12px;
    margin-bottom: 16px;
}

.fx-ex-orderbook,
.fx-ex-chart,
.fx-ex-order {
    background: var(--fx-bg-1);
    border: 1px solid var(--fx-line);
    border-radius: 12px;
    overflow: hidden;
    min-height: 600px;
    display: flex; flex-direction: column;
}
.fx-ex-box-head {
    padding: 12px 16px;
    background: var(--fx-bg-2);
    color: var(--fx-ink-1);
    font-size: 13px; font-weight: 700;
    border-bottom: 1px solid var(--fx-line);
    display: flex; align-items: center; justify-content: space-between;
}

/* 호가창 */
.fx-ex-ob-asks, .fx-ex-ob-bids { flex: 1; overflow: hidden; padding: 4px 0; }
.fx-ex-ob-mid {
    text-align: center;
    padding: 8px;
    background: var(--fx-bg-2);
    color: var(--fx-accent-2);
    font-size: 18px; font-weight: 800;
    border-top: 1px solid var(--fx-line);
    border-bottom: 1px solid var(--fx-line);
}
.fx-ex-ob-row {
    position: relative;
    display: flex; align-items: center;
    padding: 3px 12px;
    font-size: 12px;
    font-family: 'Consolas', monospace;
    cursor: pointer;
}
.fx-ex-ob-row:hover { background: rgba(255,255,255,.03); }
.fx-ex-ob-asks .fx-ob-price { color: var(--fx-red); flex: 1; z-index: 1; }
.fx-ex-ob-bids .fx-ob-price { color: var(--fx-green); flex: 1; z-index: 1; }
.fx-ob-amount { color: var(--fx-ink-2); width: 80px; text-align: right; z-index: 1; }
.fx-ob-fill { position: absolute; right: 0; top: 0; height: 100%; opacity: .12; }
.fx-ex-ob-asks .fx-ob-fill { background: var(--fx-red); }
.fx-ex-ob-bids .fx-ob-fill { background: var(--fx-green); }
.fx-ex-loading { padding: 30px; text-align: center; color: var(--fx-ink-3); font-size: 12px; }

/* 차트 */
.fx-ex-chart { padding: 0; position: relative; }
#fx-tv-chart { flex: 1; height: 100%; min-height: 600px; }

/* ── 초단타(PRO) 차트 — Lightweight Charts ── */
.fx-pro-chart { display: flex; flex-direction: column; }
.fx-pro-toolbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 8px 14px;
    background: var(--fx-bg-2);
    border-bottom: 1px solid var(--fx-line);
    flex: 0 0 auto;
}
.fx-pro-tf { display: flex; gap: 4px; }
.fx-pro-tf-btn {
    background: var(--fx-bg-3); color: var(--fx-ink-2);
    border: 1px solid var(--fx-line);
    padding: 5px 12px; border-radius: 5px;
    font-size: 12px; font-weight: 700; cursor: pointer;
    transition: all .12s;
}
.fx-pro-tf-btn:hover { color: var(--fx-ink-0); }
.fx-pro-tf-btn.is-active {
    background: linear-gradient(90deg, var(--fx-red), var(--fx-green));
    color: #fff; border-color: transparent;
}
.fx-pro-toolbar-right { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--fx-ink-3); }
.fx-pro-pulse {
    display: inline-block;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--fx-ink-3);
    transition: background .15s, box-shadow .15s;
}
.fx-pro-pulse.is-on {
    background: var(--fx-green);
    box-shadow: 0 0 12px var(--fx-green);
    animation: fxPulse .5s ease-out;
}
@keyframes fxPulse {
    0%   { transform: scale(1.6); }
    100% { transform: scale(1); }
}
#fx-lwc-chart {
    flex: 1; min-height: 540px;
    background: #0a0c10;
}

.fx-ex-orderlines {
    position: absolute; top: 106px; left: 16px;
    background: rgba(11, 14, 17, .92);
    border: 1px solid rgba(162, 89, 255, .35);
    border-radius: 10px;
    padding: 10px 12px;
    min-width: 240px; max-width: 340px;
    backdrop-filter: blur(6px);
    z-index: 10;
}
.fx-ol-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 12px; color: var(--fx-accent-2); }
.fx-ol-dot { width: 8px; height: 8px; background: var(--fx-accent); border-radius: 50%; box-shadow: 0 0 6px var(--fx-accent); }
.fx-ol-count {
    margin-left: auto; background: var(--fx-accent); color: #fff;
    font-size: 11px; padding: 2px 8px; border-radius: 10px; font-weight: 800;
}
.fx-ol-empty { color: var(--fx-ink-3); font-size: 11px; padding: 6px 0; }
.fx-ol-line {
    display: flex; gap: 8px; padding: 6px 0;
    border-bottom: 1px dashed var(--fx-line);
    font-size: 11px; color: var(--fx-ink-2);
    flex-wrap: wrap;
}
.fx-ol-line:last-child { border: 0; }
.fx-ol-line span { white-space: nowrap; }

/* 주문 폼 */
.fx-ex-sidetabs {
    display: grid; grid-template-columns: 1fr 1fr;
    background: var(--fx-bg-2);
    border-bottom: 1px solid var(--fx-line);
}
.fx-ex-side {
    padding: 14px 12px; border: 0; background: transparent;
    color: var(--fx-ink-3);
    font-weight: 800; font-size: 14px;
    cursor: pointer; transition: all .15s;
}
.fx-ex-side.is-long.is-active { background: rgba(14, 203, 129, .14); color: var(--fx-green); border-bottom: 2px solid var(--fx-green); }
.fx-ex-side.is-short.is-active { background: rgba(246, 70, 93, .14); color: var(--fx-red); border-bottom: 2px solid var(--fx-red); }
.fx-ex-order-body { padding: 18px; flex: 1; overflow-y: auto; }
.fx-ex-order-group { margin-bottom: 14px; }
.fx-ex-lbl {
    font-size: 12px; color: var(--fx-ink-3); display: block; margin-bottom: 6px;
    display: flex; justify-content: space-between; align-items: center;
}
.fx-lev-val {
    color: var(--fx-accent-2); font-weight: 800; font-size: 16px;
}
.fx-lev-range {
    width: 100%; -webkit-appearance: none; appearance: none;
    background: var(--fx-bg-3); height: 6px; border-radius: 3px;
    outline: none; cursor: pointer;
}
.fx-lev-range::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--fx-accent); cursor: pointer;
    box-shadow: 0 0 0 3px rgba(162,89,255,.3);
}
.fx-lev-range::-moz-range-thumb {
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--fx-accent); cursor: pointer; border: 0;
    box-shadow: 0 0 0 3px rgba(162,89,255,.3);
}
.fx-lev-presets {
    display: grid; grid-template-columns: repeat(7, 1fr);
    gap: 4px; margin-top: 8px;
}
.fx-lev-presets button {
    background: var(--fx-bg-3); color: var(--fx-ink-2);
    border: 1px solid var(--fx-line);
    padding: 6px 0; border-radius: 6px;
    font-size: 11px; font-weight: 700; cursor: pointer;
    transition: all .12s;
}
.fx-lev-presets button:hover {
    background: rgba(162,89,255,.15); color: var(--fx-accent-2); border-color: var(--fx-accent);
}

.fx-ex-input {
    width: 100%;
    background: var(--fx-bg-2); color: var(--fx-ink-0);
    border: 1px solid var(--fx-line-2);
    border-radius: 8px; padding: 11px 14px;
    font-size: 14px; font-weight: 600;
    font-family: 'Consolas', monospace;
}
.fx-ex-input:focus { outline: none; border-color: var(--fx-accent); }

.fx-input-suffix { position: relative; }
.fx-input-suffix-tag {
    position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
    color: var(--fx-accent-2); font-size: 13px; font-weight: 700;
    pointer-events: none;
}
.fx-input-suffix .fx-ex-input { padding-right: 36px; }

.fx-ex-pct {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 4px; margin-bottom: 14px;
}
.fx-ex-pct button {
    background: var(--fx-bg-3); color: var(--fx-ink-2);
    border: 1px solid var(--fx-line);
    padding: 7px 0; border-radius: 6px;
    font-size: 12px; cursor: pointer;
}
.fx-ex-pct button:hover { background: rgba(162,89,255,.15); color: var(--fx-accent-2); }

.fx-ex-sltp {
    background: var(--fx-bg-2);
    border: 1px solid var(--fx-line);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 14px;
}
.fx-ex-sltp summary { cursor: pointer; color: var(--fx-ink-2); font-size: 13px; }
.fx-ex-sltp summary span { color: var(--fx-ink-3); font-size: 11px; }
.fx-sltp-row {
    display: grid; grid-template-columns: 80px 1fr; gap: 8px;
    align-items: center; margin-top: 10px;
}
.fx-sltp-row label { font-size: 12px; color: var(--fx-ink-3); }
.fx-sltp-row input {
    background: var(--fx-bg-3); color: var(--fx-ink-0);
    border: 1px solid var(--fx-line); border-radius: 6px;
    padding: 7px 10px; font-size: 12px; font-family: monospace;
}

.fx-ex-summary {
    background: var(--fx-bg-2);
    border: 1px solid var(--fx-line);
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 14px;
    font-size: 12px;
}
.fx-ex-summary > div {
    display: flex; justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px dashed var(--fx-line);
}
.fx-ex-summary > div:last-child { border: 0; }
.fx-ex-summary span { color: var(--fx-ink-3); }
.fx-ex-summary strong { color: var(--fx-ink-1); font-weight: 700; }
.fx-row-warn strong { color: var(--fx-red); }
.fx-row-info strong { color: var(--fx-accent-2); }

.fx-ex-btns { margin-top: 8px; }

.fx-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 12px 20px;
    border: 0; border-radius: 8px;
    font-size: 14px; font-weight: 700;
    cursor: pointer; text-decoration: none;
    transition: all .12s;
    width: 100%;
}
.fx-btn:hover { transform: translateY(-1px); }
.fx-btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.fx-btn-primary { background: var(--fx-accent); color: #fff; }
.fx-btn-primary:hover { background: var(--fx-accent-2); }
.fx-btn-long {
    background: linear-gradient(180deg, var(--fx-green), var(--fx-green-dim)); color: #fff;
    box-shadow: 0 4px 12px rgba(14,203,129,.3);
}
.fx-btn-short {
    background: linear-gradient(180deg, var(--fx-red), var(--fx-red-dim)); color: #fff;
    box-shadow: 0 4px 12px rgba(246,70,93,.3);
}
.fx-btn-secondary {
    background: var(--fx-bg-3); color: var(--fx-ink-1);
    border: 1px solid var(--fx-line-2); width: auto; padding: 8px 14px; font-size: 12px;
}
.fx-btn-secondary:hover { background: var(--fx-line); }

/* 게스트 안내 */
.fx-ex-guest {
    text-align: center; padding: 40px 20px; color: var(--fx-ink-3);
}
.fx-ex-guest .fx-btn { margin-top: 16px; max-width: 200px; }

/* ============================================================
 * 하단: 오픈 포지션 테이블
 * ============================================================ */
.fx-ex-bottom { margin-top: 16px; }
.fx-ex-box {
    background: var(--fx-bg-1);
    border: 1px solid var(--fx-line);
    border-radius: 12px;
    overflow: hidden;
}
.fx-ex-positions { padding: 0; min-height: 80px; }
.fx-ex-empty {
    padding: 30px; text-align: center; color: var(--fx-ink-3); font-size: 13px;
}

.fx-positions-table {
    width: 100%; border-collapse: collapse; font-size: 13px;
}
.fx-positions-table th, .fx-positions-table td {
    padding: 12px 14px; text-align: left;
    border-bottom: 1px solid var(--fx-line);
}
.fx-positions-table th {
    background: var(--fx-bg-2); color: var(--fx-ink-3);
    font-size: 11px; font-weight: 600; text-transform: uppercase;
}
.fx-positions-table td { color: var(--fx-ink-1); }
.fx-positions-table tbody tr:hover { background: rgba(255,255,255,.02); }

.fx-side-long { color: var(--fx-green); font-weight: 800; }
.fx-side-short { color: var(--fx-red); font-weight: 800; }
.fx-pnl-pos { color: var(--fx-green); font-weight: 700; }
.fx-pnl-neg { color: var(--fx-red); font-weight: 700; }
.fx-pos-lev {
    display: inline-block; padding: 2px 8px;
    background: rgba(162,89,255,.2); color: var(--fx-accent-2);
    border-radius: 4px; font-size: 11px; font-weight: 700;
}
.fx-close-btn {
    background: var(--fx-bg-3); color: var(--fx-ink-1);
    border: 1px solid var(--fx-line-2);
    padding: 6px 12px; border-radius: 6px;
    font-size: 12px; cursor: pointer;
}
.fx-close-btn:hover { background: var(--fx-red); border-color: var(--fx-red); color: #fff; }

.fx-ex-notice {
    margin-top: 14px;
    padding: 12px 18px;
    background: rgba(162, 89, 255, .05);
    border: 1px solid rgba(162, 89, 255, .15);
    border-radius: 8px;
    font-size: 12px;
    color: var(--fx-ink-3);
}

/* ============================================================
 * 포지션 페이지 (cards)
 * ============================================================ */
.fx-page {
    background: var(--fx-bg-1);
    border: 1px solid var(--fx-line);
    border-radius: 12px;
    padding: 24px;
}
.fx-page-head { margin-bottom: 20px; }
.fx-page-head h2 { margin: 0 0 4px; color: var(--fx-ink-0); font-size: 22px; }
.fx-page-head p { margin: 0; color: var(--fx-ink-3); font-size: 13px; }

.fx-positions-cards {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
    gap: 16px;
}
.fx-pos-card {
    background: var(--fx-bg-2);
    border: 1px solid var(--fx-line);
    border-radius: 10px;
    overflow: hidden;
}
.fx-pos-card-head {
    padding: 12px 16px;
    background: var(--fx-bg-3);
    border-bottom: 1px solid var(--fx-line);
    display: flex; justify-content: space-between; align-items: center; gap: 8px;
    flex-wrap: wrap;
}
.fx-pos-symbol { font-weight: 800; color: var(--fx-ink-0); font-size: 16px; margin-right: 8px; }
.fx-btn-close-pos {
    background: var(--fx-bg-1); color: var(--fx-ink-2);
    border: 1px solid var(--fx-line-2);
    padding: 6px 12px; border-radius: 6px;
    font-size: 12px; cursor: pointer; width: auto;
}
.fx-btn-close-pos:hover { background: var(--fx-red); color: #fff; border-color: var(--fx-red); }
.fx-pos-card-body {
    padding: 14px 16px;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 10px 18px;
}
.fx-pos-stat { display: flex; justify-content: space-between; }
.fx-pos-stat label { color: var(--fx-ink-3); font-size: 12px; }
.fx-pos-stat b { color: var(--fx-ink-1); font-size: 13px; font-family: monospace; }
.fx-pnl-cell, .fx-roe-cell { background: rgba(162,89,255,.06); padding: 4px 8px; border-radius: 5px; }

.fx-pos-sltp-edit {
    background: var(--fx-bg-3);
    border-top: 1px solid var(--fx-line);
    padding: 10px 16px;
}
.fx-pos-sltp-edit summary { cursor: pointer; color: var(--fx-ink-2); font-size: 12px; }
.fx-sltp-edit-row { display: flex; gap: 6px; margin-top: 8px; }
.fx-sltp-edit-row input {
    flex: 1; background: var(--fx-bg-1); color: var(--fx-ink-1);
    border: 1px solid var(--fx-line-2); border-radius: 6px;
    padding: 6px 10px; font-size: 12px; font-family: monospace;
}

/* ============================================================
 * 히스토리 페이지
 * ============================================================ */
.fx-history-stats {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px; margin-bottom: 20px;
}
.fx-stat-card {
    background: var(--fx-bg-2); border: 1px solid var(--fx-line);
    border-radius: 8px; padding: 14px;
    text-align: center;
}
.fx-stat-card label { display: block; color: var(--fx-ink-3); font-size: 11px; margin-bottom: 4px; }
.fx-stat-card b { font-size: 20px; }

.fx-table-wrap { overflow-x: auto; }
.fx-history-table, .fx-leader-table {
    width: 100%; border-collapse: collapse; font-size: 13px;
    background: var(--fx-bg-2); border-radius: 8px; overflow: hidden;
}
.fx-history-table th, .fx-history-table td,
.fx-leader-table th, .fx-leader-table td {
    padding: 11px 14px; text-align: left;
    border-bottom: 1px solid var(--fx-line);
}
.fx-history-table th, .fx-leader-table th {
    background: var(--fx-bg-3); color: var(--fx-ink-3);
    font-size: 11px; font-weight: 600; text-transform: uppercase;
}
.fx-history-table tbody tr:hover, .fx-leader-table tbody tr:hover { background: rgba(255,255,255,.02); }

/* ============================================================
 * 리더보드
 * ============================================================ */
.fx-period-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.fx-period-tab {
    background: var(--fx-bg-2); color: var(--fx-ink-2);
    border: 1px solid var(--fx-line);
    padding: 8px 16px; border-radius: 8px;
    text-decoration: none; font-size: 13px; font-weight: 600;
    transition: all .12s;
}
.fx-period-tab:hover { color: var(--fx-accent-2); border-color: var(--fx-accent); }
.fx-period-tab.is-active { background: var(--fx-accent); color: #fff; border-color: var(--fx-accent); }

.fx-rank-cell { font-weight: 800; font-size: 16px; }

/* ============================================================
 * 가이드
 * ============================================================ */
.fx-guide { padding: 24px 28px; color: var(--fx-ink-1); line-height: 1.7; max-width: 900px; }
.fx-guide h2 { margin: 0 0 18px; font-size: 24px; color: var(--fx-ink-0); }
.fx-guide h3 {
    margin: 26px 0 10px; font-size: 16px;
    color: var(--fx-accent-2);
    border-left: 3px solid var(--fx-accent); padding-left: 10px;
}
.fx-guide ul, .fx-guide ol { padding-left: 22px; }
.fx-guide li { margin: 4px 0; color: var(--fx-ink-2); }
.fx-guide code {
    display: block; background: var(--fx-bg-2);
    padding: 8px 14px; margin: 4px 0; border-radius: 6px;
    font-family: 'Consolas', monospace; font-size: 13px; color: var(--fx-accent-2);
    border-left: 3px solid var(--fx-accent);
}
.fx-guide-warn {
    background: rgba(246, 70, 93, .08);
    border: 1px solid rgba(246, 70, 93, .3);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 20px;
    color: var(--fx-ink-1);
}
.fx-guide-warn b { color: var(--fx-red); display: block; margin-bottom: 4px; }
.fx-guide-table { width: 100%; border-collapse: collapse; margin: 8px 0; }
.fx-guide-table th, .fx-guide-table td { padding: 10px 14px; border: 1px solid var(--fx-line); text-align: left; }
.fx-guide-table th { background: var(--fx-bg-2); color: var(--fx-accent-2); font-weight: 700; font-size: 13px; }
.fx-guide-table td { color: var(--fx-ink-2); font-size: 13px; }
.fx-guide-formula { background: var(--fx-bg-2); padding: 14px; border-radius: 8px; margin: 8px 0; }
.fx-formula-note { font-size: 12px; color: var(--fx-ink-3); margin-top: 8px; }
.fx-faq {
    background: var(--fx-bg-2); border: 1px solid var(--fx-line);
    border-radius: 6px; padding: 10px 14px; margin: 6px 0;
}
.fx-faq summary { cursor: pointer; color: var(--fx-ink-1); font-weight: 600; font-size: 13px; }
.fx-faq p { margin: 8px 0 0; color: var(--fx-ink-2); font-size: 13px; }

/* ============================================================
 * 모달 (가이드)
 * ============================================================ */
body.fx-modal-open { overflow: hidden; }
.fx-modal {
    position: fixed; inset: 0; z-index: 10000;
    display: none; align-items: center; justify-content: center;
    padding: 30px 20px;
}
.fx-modal.is-open { display: flex; animation: fxModalIn .18s ease-out; }
@keyframes fxModalIn { from { opacity: 0; } to { opacity: 1; } }
.fx-modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.7); backdrop-filter: blur(4px); }
.fx-modal-box {
    position: relative; width: 100%; max-width: 880px;
    max-height: calc(100vh - 60px);
    background: var(--fx-bg-1);
    border: 1px solid var(--fx-line);
    border-radius: 14px;
    overflow: hidden;
    display: flex; flex-direction: column;
}
.fx-modal-head {
    padding: 16px 22px;
    background: var(--fx-bg-2);
    border-bottom: 1px solid var(--fx-line);
    display: flex; justify-content: space-between; align-items: center;
    color: var(--fx-ink-0);
}
.fx-modal-close {
    background: transparent; border: 0; color: var(--fx-ink-2);
    font-size: 28px; cursor: pointer; line-height: 1;
}
.fx-modal-body { overflow-y: auto; flex: 1; }

/* ============================================================
 * 반응형
 * ============================================================ */
@media (max-width: 1100px) {
    .fx-ex-grid { grid-template-columns: 1fr; }
    .fx-ex-orderbook, .fx-ex-order { min-height: 400px; }
    #fx-tv-chart { min-height: 480px; }
}
@media (max-width: 720px) {
    .fx-ex-topbar { grid-template-columns: 1fr; }
    .fx-ex-stats { gap: 14px; }
    .fx-tabs { flex-wrap: nowrap; overflow-x: auto; }
    .fx-tab { min-width: 100px; }
    .fx-pos-card-body { grid-template-columns: 1fr; }
    .fx-positions-cards { grid-template-columns: 1fr; }
}