/* =========================================================
   FI Magazine Article - Safe Mode (Cursor Fix + Wide Layout)
   ========================================================= */

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

:root {
    --bg:       #050505;
    --text:     #e0e0e0;
    --muted:    #666;
    --border:   rgba(255,255,255,0.08);
    --accent:   #D4FF00; /* Neon Lime */
    --font-display: 'Clash Display', sans-serif;
    --font-body:    'Manrope', sans-serif;
}

body {
    background: var(--bg); color: var(--text); font-family: var(--font-body);
    line-height: 1.7; overflow-x: hidden;
    /* ★ [안전장치] 기본적으로 마우스를 보여줍니다. JS가 로드되면 숨깁니다. */
    cursor: auto; 
}

/* JS가 'custom-cursor-active' 클래스를 붙이면 그때 숨김 */
body.custom-cursor-active { cursor: none; }

/* Custom Cursor Elements */
.cursor-dot {
    width: 8px; height: 8px; background: var(--accent); /* 잘 보이게 라임색 */
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    transform: translate(-50%, -50%); /* 정확한 좌표 보정 */
    pointer-events: none; z-index: 999999;
    display: none; /* JS 로드 전엔 숨김 */
}
.cursor-ring {
    width: 40px; height: 40px;
    border: 1px solid rgba(212,255,0, 0.5); /* 라임색 테두리 */
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    transform: translate(-50%, -50%); /* 정확한 좌표 보정 */
    pointer-events: none; z-index: 999998;
    transition: width 0.2s, height 0.2s, background 0.2s;
    display: none; /* JS 로드 전엔 숨김 */
}

/* JS 작동 시에만 커스텀 커서 표시 */
body.custom-cursor-active .cursor-dot,
body.custom-cursor-active .cursor-ring { display: block; }

/* Interactive Hover State */
body.hovered .cursor-ring {
    width: 70px; height: 70px;
    background: rgba(212,255,0, 0.1);
    border-color: transparent;
}

/* Scroll Progress */
#progress {
    position: fixed; top: 0; left: 0; right: 0; height: 3px;
    background: var(--accent); transform-origin: left; transform: scaleX(0);
    z-index: 9999; will-change: transform;
}

/* Reading Indicator */
#reading-indicator {
    position: fixed; top: 50%; right: 1.5rem; transform: translateY(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    z-index: 500; opacity: 0; pointer-events: none; transition: opacity 0.4s;
}
#reading-indicator.visible { opacity: 1; }
.ri-track { width: 2px; height: 100px; background: rgba(255,255,255,0.1); position: relative; overflow: hidden; }
.ri-fill { position: absolute; bottom: 0; left: 0; right: 0; background: var(--accent); height: 0%; will-change: height; }
.ri-label { font-size: 0.6rem; color: var(--muted); writing-mode: vertical-rl; letter-spacing: 0.1em; text-transform: uppercase; }

/* Header */
.fi-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.5rem 0; background: rgba(5,5,5,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color 0.3s; }
.fi-header.scrolled { border-color: var(--border); }
.fi-container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-display); font-size: 0.9rem; color: #fff; text-decoration: none; text-transform: uppercase; letter-spacing: 0.05em; display: flex; align-items: center; gap: 5px; }
.nav-menu { display: flex; gap: 2rem; align-items: center; }
.nav-item { font-size: 0.85rem; color: var(--muted); text-decoration: none; transition: 0.3s; }
.nav-item:hover { color: #fff; }
.nav-live { color: var(--accent); font-size: 0.75rem; display: flex; align-items: center; gap: 6px; }
.nav-live-dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ★ [수정] Layout Width Increased ★ */
.fi-article {
    max-width: 1000px; /* 기존 760px -> 1000px 확대 */
    margin: 0 auto;
    padding: 140px 2rem 100px;
}
.article-hero { margin-bottom: 60px; text-align: left; }
.hero-badges { display: flex; gap: 10px; font-size: 0.75rem; color: var(--muted); margin-bottom: 20px; align-items: center; }
.fi-badge { color: var(--accent); border: 1px solid rgba(212,255,0,0.3); padding: 4px 12px; border-radius: 20px; text-transform: uppercase; letter-spacing: 1px; }
.article-title { font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4.2rem); line-height: 1.1; color: #fff; margin-bottom: 20px; }
.article-subtitle { font-size: 1.3rem; color: #aaa; font-weight: 300; line-height: 1.6; max-width: 800px; }
.article-hero-img { margin: 50px 0; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 21/9; }
.hero-img-bg { width: 100%; height: 100%; object-fit: cover; }

/* Body Content - Text width constrained for readability */
.article-body { font-size: 1.15rem; color: #ccc; max-width: 800px; margin: 0 auto; }
.article-body p { margin-bottom: 1.8em; }
.article-body h2 { font-family: var(--font-display); font-size: 2rem; color: #fff; margin: 70px 0 25px; border-bottom: 1px solid var(--border); padding-bottom: 15px; }
.article-body ul { padding-left: 0; list-style: none; margin-bottom: 40px; }
.article-body li { padding: 12px 0 12px 25px; border-bottom: 1px solid rgba(255,255,255,0.05); position: relative; }
.article-body li::before { content: '→'; position: absolute; left: 0; color: var(--accent); top: 12px; }
blockquote { border-left: 4px solid var(--accent); padding: 25px 35px; background: rgba(255,255,255,0.03); margin: 50px 0; font-size: 1.3rem; font-style: italic; color: #fff; }

/* Full Width Elements */
.chart-box, .cat-section, .ref-section, .kpi-grid, .split-layout { 
    max-width: 1000px; margin-left: auto; margin-right: auto; width: 100%;
}

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 40px 0; }
.kpi-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 30px 20px; border-radius: 12px; text-align: center; transition: all 0.3s; }
.kpi-card:hover { border-color: var(--accent); transform: translateY(-5px); background: rgba(255,255,255,0.05); }
.kpi-val { font-family: var(--font-display); font-size: 2.8rem; color: var(--accent); line-height: 1; display: block; margin-bottom: 10px; font-weight: 600; }
.kpi-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: #888; }

/* Chart Box */
.chart-box {
    background: rgba(255,255,255,0.02); border: 1px solid var(--border);
    border-radius: 12px; padding: 30px; margin: 60px auto;
    position: relative; overflow: hidden;
}
.chart-box::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent); opacity: 0.6;
}
.chart-box canvas { width: 100% !important; height: auto !important; max-height: 450px; display: block; }
.chart-label { display: block; font-size: 0.8rem; color: var(--muted); text-transform: uppercase; margin-bottom: 25px; letter-spacing: 1px; font-weight: 600; }
.chart-source { display: block; font-size: 0.75rem; color: #555; text-align: right; margin-top: 15px; }

/* Split Layout */
.split-layout { display: flex; gap: 50px; align-items: center; margin: 80px auto; }
.split-chart { flex: 1; min-width: 0; }
.split-text { flex: 1; }

/* Reference Links */
.fi-section-divider { width: 100%; height: 1px; background: var(--border); margin: 100px 0 60px; opacity: 0.5; }
.ref-section { margin-bottom: 80px; }
.ref-title, .cat-title { font-family: var(--font-display); font-size: 1.4rem; color: #fff; margin-bottom: 35px; border-left: 4px solid var(--accent); padding-left: 20px; }
.ref-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 25px; }
.ref-card {
    display: flex; align-items: center; gap: 25px; padding: 30px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: 12px;
    text-decoration: none; transition: all 0.3s;
}
.ref-card:hover { border-color: var(--accent); background: rgba(255,255,255,0.04); transform: translateY(-3px); }
.ref-icon { font-size: 2.2rem; }
.ref-info { flex: 1; }
.ref-name { display: block; color: #fff; font-weight: 600; font-size: 1.1rem; margin-bottom: 6px; }
.ref-desc { display: block; color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; }
.ref-arrow { color: var(--accent); font-size: 1.4rem; opacity: 0; transform: translateX(-10px); transition: all 0.3s; }
.ref-card:hover .ref-arrow { opacity: 1; transform: translateX(0); }

/* Intelligence Cards */
.cat-section { margin-bottom: 60px; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.cat-card {
    display: flex; flex-direction: column; justify-content: space-between;
    padding: 30px; background: rgba(255,255,255,0.02);
    border: 1px solid var(--border); border-radius: 12px;
    text-decoration: none; position: relative; overflow: hidden;
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.cat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0.4; transition: opacity 0.3s;
}
.cat-card:hover { border-color: rgba(212,255,0,0.4); transform: translateY(-5px); background: rgba(255,255,255,0.05); }
.cat-card:hover::before { opacity: 1; }
.cat-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; }
.cat-num { font-family: var(--font-display); font-size: 1.8rem; color: rgba(255,255,255,0.15); font-weight: 700; line-height: 1; }
.cat-plans { font-size: 0.7rem; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; border: 1px solid rgba(212,255,0,0.25); padding: 4px 10px; border-radius: 4px; font-weight: 600; }
.cat-name { font-family: var(--font-display); font-size: 1.3rem; color: #fff; margin-bottom: 10px; display: block; font-weight: 600; }
.cat-desc { font-size: 0.9rem; color: #999; display: block; line-height: 1.5; min-height: 3em; }
.cat-corner { position: absolute; bottom: 0; right: 0; width: 20px; height: 20px; border-bottom: 2px solid rgba(255,255,255,0.1); border-right: 2px solid rgba(255,255,255,0.1); border-radius: 0 0 12px 0; transition: all 0.3s; }
.cat-card:hover .cat-corner { border-color: var(--accent); width: 35px; height: 35px; }

/* Details/Summary */
details.fi-details { background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 15px; overflow: hidden; transition: background 0.3s; }
details.fi-details:hover { background: rgba(255,255,255,0.04); }
summary { padding: 25px; cursor: pointer; font-family: var(--font-display); font-size: 1.2rem; color: #fff; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 25px; color: var(--accent); font-weight: 300; font-size: 1.5rem; top: 50%; transform: translateY(-55%); }
details[open] summary::after { content: '-'; }
.details-content { padding: 0 25px 25px; color: #ccc; line-height: 1.7; animation: slideDown 0.3s ease-out; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* Footer */
.article-footer { margin-top: 80px; padding-top: 40px; border-top: 1px solid var(--border); text-align: center; color: var(--muted); }
footer { border-top: 1px solid var(--border); padding: 5rem 0 3rem; margin-top: 0; text-align: center; background: var(--bg); }
.footer-links-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 2rem; margin-bottom: 2rem; }
.footer-links-row a { color: var(--muted); text-decoration: none; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; transition: color 0.3s; }
.footer-links-row a:hover { color: var(--accent); }
.footer-copyright-row { font-size: 0.8rem; color: rgba(255,255,255,0.3); }

/* Animation Utility */
.gsap-reveal { opacity: 0; }

/* Responsive */
@media (max-width: 1024px) {
    .kpi-grid, .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .split-layout { flex-direction: column; }
}
@media (max-width: 768px) {
    .fi-article { padding: 100px 1.5rem 60px; }
    .article-title { font-size: 2.5rem; }
    .kpi-grid, .cat-grid, .ref-grid { grid-template-columns: 1fr; }
    .footer-links-row { gap: 1rem; }
    #reading-indicator { display: none; }
}