/* =====================================================
   DESIGN TOKENS
===================================================== */
:root {
    --bg:          #070c1a;
    --bg-2:        #0d1428;
    --bg-card:     #0f172a;
    --bg-card-h:   #131e35;
    --bg-hi:       #1a2540;

    --text-1:      #ddd8cd;
    --text-2:      #8896ab;
    --text-3:      #4a5568;
    --text-inv:    #070c1a;

    --gold:        #e8a020;
    --gold-l:      #f4c060;
    --gold-dim:    rgba(232,160,32,.13);
    --gold-border: rgba(232,160,32,.22);

    --teal:        #14b8a6;
    --teal-dim:    rgba(20,184,166,.1);

    --red:         #f43f5e;
    --red-dim:     rgba(244,63,94,.1);

    --green:       #10b981;

    --border:      rgba(255,255,255,.06);
    --border-l:    rgba(255,255,255,.11);

    --ff-display: 'DM Serif Display', Georgia, serif;
    --ff-body:    'IBM Plex Sans', -apple-system, sans-serif;
    --ff-mono:    'IBM Plex Mono', 'Courier New', monospace;

    --r:    6px;
    --r-lg: 10px;
}

/* =====================================================
   RESET
===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--ff-body);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-1);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* =====================================================
   READING PROGRESS BAR
===================================================== */
#progress {
    position: fixed; top: 0; left: 0;
    width: 0; height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-l));
    z-index: 200;
    transition: width .08s linear;
}

/* =====================================================
   SITE NAV
===================================================== */
.site-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(7,12,26,.93);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1200px; margin: 0 auto;
    padding: 0 24px;
    display: flex; align-items: center; gap: 28px;
    height: 54px;
}

.site-logo {
    font-family: var(--ff-display);
    font-size: 1.25em;
    color: var(--gold);
    text-decoration: none;
    letter-spacing: .02em;
    flex-shrink: 0;
}

.nav-links { list-style: none; display: flex; gap: 2px; }

.nav-links a {
    display: block; padding: 6px 13px;
    font-size: .85em; font-weight: 500;
    color: var(--text-2); text-decoration: none;
    border-radius: 4px;
    transition: color .15s, background .15s;
}

.nav-links a:hover   { color: var(--text-1); background: var(--border); }
.nav-links a.active  { color: var(--gold-l); }

.nav-cta { margin-left: auto; }

.btn-primary {
    display: inline-block; padding: 7px 18px;
    background: var(--gold); color: var(--text-inv);
    font-size: .83em; font-weight: 600;
    border-radius: 4px; text-decoration: none;
    transition: background .15s;
}
.btn-primary:hover { background: var(--gold-l); }

/* =====================================================
   PAGE WRAPPER
===================================================== */
.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================================================
   BREADCRUMB
===================================================== */
.breadcrumb {
    display: flex; align-items: center; flex-wrap: wrap;
    gap: 8px; padding: 20px 0 0;
    font-size: .78em; color: var(--text-3);
}

.breadcrumb a {
    color: var(--text-2); text-decoration: none;
    transition: color .15s;
}
.breadcrumb a:hover  { color: var(--gold-l); }
.breadcrumb-cur      { color: var(--gold-l); }
.breadcrumb-sep      { color: var(--text-3); }

/* =====================================================
   ARTICLE HEADER
===================================================== */
.article-header {
    padding: 28px 0 40px;
    animation: fadeUp .5s ease both;
}

.cat-badge {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 4px 13px;
    background: var(--gold-dim);
    border: 1px solid var(--gold-border);
    border-radius: 20px;
    font-size: .72em; font-weight: 600;
    color: var(--gold-l);
    letter-spacing: .06em; text-transform: uppercase;
    text-decoration: none;
    margin-bottom: 20px;
}
.cat-badge::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--gold); border-radius: 50%;
}

.article-title {
    font-family: var(--ff-display);
    font-size: clamp(1.9em, 3.8vw, 2.85em);
    font-weight: 400;
    line-height: 1.15;
    color: #f0ece3;
    margin-bottom: 24px;
    max-width: 760px;
}

.article-meta {
    display: flex; align-items: center;
    flex-wrap: wrap; gap: 16px;
    font-size: .83em; color: var(--text-2);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.meta-sep { color: var(--text-3); }

.meta-url {
    font-family: var(--ff-mono);
    font-size: .85em;
    color: var(--gold);
    opacity: .7;
}

.article-lead {
    margin-top: 26px;
    font-size: 1.1em; font-weight: 300;
    line-height: 1.72; color: #b5afa3;
    max-width: 700px;
}

/* =====================================================
   KEY TAKEAWAYS
===================================================== */
.key-takeaways {
    background: var(--bg-card);
    border: 1px solid var(--gold-border);
    border-left: 3px solid var(--gold);
    border-radius: var(--r-lg);
    padding: 26px 30px;
    margin-bottom: 48px;
    animation: fadeUp .5s ease .1s both;
}

.kt-header {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 14px;
}

.kt-tag {
    font-family: var(--ff-mono);
    font-size: .7em; color: var(--gold);
    background: var(--gold-dim); padding: 2px 8px;
    border-radius: 3px; letter-spacing: .05em;
}

.kt-label {
    font-size: .68em; font-weight: 600;
    text-transform: uppercase; letter-spacing: .12em;
    color: var(--gold-l);
}

.key-takeaways ul { list-style: none; }

.key-takeaways li {
    padding: 9px 0 9px 20px;
    border-bottom: 1px solid var(--border);
    font-size: .93em; line-height: 1.65;
    color: var(--text-1); position: relative;
}
.key-takeaways li:last-child { border-bottom: none; }
.key-takeaways li::before {
    content: '→'; position: absolute; left: 0;
    color: var(--gold); font-size: .9em;
}

/* =====================================================
   TWO-COLUMN LAYOUT
===================================================== */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 256px;
    gap: 52px;
    align-items: start;
    padding: 0 0 80px;
}

/* =====================================================
   TABLE OF CONTENTS
===================================================== */
.toc-sidebar {
    position: sticky; top: 70px;
    order: 2;
}

.toc-head {
    font-size: .68em; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--text-3);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}

.toc-nav { list-style: none; font-size: .8em; }

.toc-nav li { margin-bottom: 1px; }

.toc-link {
    display: block; padding: 6px 10px;
    color: var(--text-2); text-decoration: none;
    border-left: 2px solid transparent;
    border-radius: 0 4px 4px 0;
    line-height: 1.4;
    transition: color .15s, border-color .15s, background .15s;
}
.toc-link:hover { color: var(--text-1); background: var(--border); }
.toc-link.active {
    color: var(--gold-l);
    border-color: var(--gold);
    background: var(--gold-dim);
}

.toc-rule {
    height: 1px; background: var(--border);
    margin: 18px 0;
}

.toc-cta {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 16px;
}
.toc-cta-label {
    font-size: .68em; font-weight: 600;
    text-transform: uppercase; letter-spacing: .08em;
    color: var(--text-3); margin-bottom: 7px;
}
.toc-cta-text {
    font-size: .8em; color: var(--text-2);
    line-height: 1.5; margin-bottom: 12px;
}
.btn-sm {
    display: block; text-align: center;
    padding: 7px 12px;
    background: var(--gold); color: var(--text-inv);
    font-size: .78em; font-weight: 600;
    border-radius: 4px; text-decoration: none;
}

/* =====================================================
   ARTICLE BODY
===================================================== */
.article-body {
    order: 1; min-width: 0;
}

.article-body section { margin-bottom: 56px; }

/* =====================================================
   HEADINGS
===================================================== */
.article-body h2 {
    font-family: var(--ff-display);
    font-size: 1.6em; font-weight: 400;
    color: #f0ece3; margin-bottom: 20px;
    line-height: 1.22; padding-top: 8px;
    display: flex; align-items: baseline; gap: 10px;
}

.sec-num {
    font-family: var(--ff-mono);
    font-size: .5em; color: var(--gold);
    font-weight: 400; flex-shrink: 0;
    padding-top: 2px;
}

.article-body h3 {
    font-size: 1.02em; font-weight: 600;
    color: #c2bdb0;
    margin: 28px 0 12px;
    letter-spacing: .01em;
}

/* =====================================================
   BODY TEXT
===================================================== */
.article-body p {
    margin-bottom: 18px;
    color: var(--text-1);
    font-size: 1em; line-height: 1.8;
}

.article-body strong { color: #f0ece3; font-weight: 600; }

.article-body a {
    color: var(--gold-l); text-decoration: none;
    border-bottom: 1px solid var(--gold-border);
    transition: color .15s, border-color .15s;
}
.article-body a:hover {
    color: var(--gold);
    border-bottom-color: var(--gold);
}

abbr { text-decoration: underline dotted var(--text-3); cursor: help; }
dfn  { font-style: italic; color: var(--gold-l); }

.article-body ul,
.article-body ol {
    padding-left: 24px; margin: 12px 0 20px;
}
.article-body li {
    margin-bottom: 10px; line-height: 1.75;
    color: var(--text-1);
}

/* =====================================================
   DEFINITION BOX
===================================================== */
.def-box {
    background: var(--bg-card);
    border: 1px solid var(--border-l);
    border-radius: var(--r-lg);
    padding: 24px 28px;
    margin: 20px 0;
    position: relative; overflow: hidden;
}
.def-box::before {
    content: '"';
    position: absolute; top: -14px; left: 18px;
    font-family: var(--ff-display);
    font-size: 9em; color: var(--border);
    line-height: 1; pointer-events: none;
}
.definition-text {
    font-size: 1.04em; line-height: 1.75;
    color: #c8c2b5; position: relative; z-index: 1;
}
.def-source {
    margin-top: 12px; font-size: .76em;
    color: var(--text-3); font-family: var(--ff-mono);
    position: relative; z-index: 1;
}

/* =====================================================
   FORMULA BLOCK
===================================================== */
pre {
    background: #04080f;
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 18px 22px; margin: 22px 0;
    overflow-x: auto;
    font-family: var(--ff-mono);
    font-size: .87em; line-height: 1.6;
    color: #7dd3fc;
}
code {
    font-family: var(--ff-mono); font-size: .87em;
    background: var(--bg-hi); color: var(--gold-l);
    padding: 2px 7px; border-radius: 3px;
}

/* =====================================================
   THRESHOLD GRID
===================================================== */
.threshold-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px; margin: 22px 0;
}
.tc {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 14px 10px; text-align: center;
    transition: border-color .2s;
}
.tc:hover { border-color: var(--border-l); }
.tc-range {
    font-family: var(--ff-mono);
    font-size: 1em; font-weight: 500;
    margin-bottom: 6px;
}
.tc-label { font-size: .72em; color: var(--text-2); line-height: 1.4; }
.tc-1 .tc-range { color: #10b981; }
.tc-2 .tc-range { color: #34d399; }
.tc-3 .tc-range { color: var(--text-2); }
.tc-4 .tc-range { color: #f97316; }
.tc-5 .tc-range { color: var(--red); }

/* =====================================================
   DATA TABLE
===================================================== */
.tbl-wrap {
    margin: 22px 0;
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow-x: auto;
}
.dtbl {
    width: 100%; border-collapse: collapse;
    font-size: .875em;
}
.dtbl thead { background: var(--bg-hi); }
.dtbl th {
    padding: 11px 15px;
    text-align: left;
    font-weight: 600; font-size: .75em;
    text-transform: uppercase; letter-spacing: .06em;
    color: var(--text-2);
    border-bottom: 1px solid var(--border-l);
    white-space: nowrap;
}
.dtbl td {
    padding: 11px 15px;
    border-bottom: 1px solid var(--border);
    color: var(--text-1); vertical-align: top;
    line-height: 1.5;
}
.dtbl tbody tr:last-child td { border-bottom: none; }
.dtbl tbody tr:hover td { background: var(--bg-card-h); }

/* =====================================================
   TRADE LOG
===================================================== */
.trade-log {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden; margin: 22px 0;
}
.tl-header {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 11px 16px;
    background: var(--bg-hi);
    border-bottom: 1px solid var(--border-l);
}
.tl-title {
    font-family: var(--ff-mono); font-size: .75em;
    color: var(--gold); letter-spacing: .05em;
    text-transform: uppercase;
}
.tl-ticker {
    font-family: var(--ff-mono); font-size: .8em;
    color: var(--text-2);
    background: var(--bg-card); padding: 3px 9px;
    border-radius: 3px; border: 1px solid var(--border);
}
.trade-log table { width: 100%; border-collapse: collapse; font-size: .84em; }
.trade-log th {
    padding: 9px 13px; text-align: left;
    font-family: var(--ff-mono); font-size: .73em;
    color: var(--text-3); letter-spacing: .05em;
    border-bottom: 1px solid var(--border);
}
.trade-log td {
    padding: 9px 13px;
    border-bottom: 1px solid var(--border);
    color: var(--text-1); vertical-align: middle;
}
.trade-log tr:last-child td { border-bottom: none; }
.signal-row td { background: rgba(244,63,94,.05); }
.pnl + { color: var(--green); font-family: var(--ff-mono); font-weight: 500; }
.rsi-val { font-family: var(--ff-mono); font-weight: 500; }
.pos { color: var(--green); font-family: var(--ff-mono); font-weight: 500; }

/* =====================================================
   CALLOUT BOXES
===================================================== */
.callout {
    border-radius: var(--r);
    padding: 16px 20px;
    margin: 18px 0;
}
.callout-label {
    font-size: .68em; font-weight: 600;
    text-transform: uppercase; letter-spacing: .1em;
    margin-bottom: 6px;
}
.callout-text { font-size: .91em; line-height: 1.7; color: var(--text-1); }

.callout-teal {
    background: var(--teal-dim);
    border: 1px solid rgba(20,184,166,.18);
    border-left: 3px solid var(--teal);
}
.callout-teal .callout-label { color: var(--teal); }

.callout-red {
    background: var(--red-dim);
    border: 1px solid rgba(244,63,94,.18);
    border-left: 3px solid var(--red);
}
.callout-red .callout-label { color: #fda4af; }
.callout-red .callout-text   { color: var(--text-2); }
.callout-red strong           { color: #fda4af; }

/* =====================================================
   RELATED ARTICLES
===================================================== */
.related {
    padding: 40px 0 60px;
    border-top: 1px solid var(--border);
}
.related-head {
    font-size: .68em; font-weight: 600;
    text-transform: uppercase; letter-spacing: .12em;
    color: var(--text-3); margin-bottom: 18px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 14px;
}
.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 18px;
    text-decoration: none;
    display: block;
    transition: border-color .2s, transform .2s;
}
.related-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-2px);
}
.related-tag {
    font-size: .68em; font-weight: 600;
    text-transform: uppercase; letter-spacing: .09em;
    color: var(--gold); margin-bottom: 7px;
}
.related-title {
    font-size: .9em; font-weight: 600;
    color: var(--text-1); line-height: 1.45;
    margin-bottom: 7px;
}
.related-desc {
    font-size: .78em; color: var(--text-2); line-height: 1.5;
}

/* =====================================================
   FOOTER
===================================================== */
.site-footer {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    padding: 18px 24px;
}
.footer-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap; gap: 10px;
    font-size: .78em; color: var(--text-3);
}
.footer-inner a { color: var(--text-3); text-decoration: none; }
.footer-inner a:hover { color: var(--text-2); }

/* =====================================================
   ANIMATION
===================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 900px) {
    .article-layout { grid-template-columns: 1fr; }
    .toc-sidebar { display: none; }
    .threshold-grid { grid-template-columns: repeat(3,1fr); }
    .related-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .article-title { font-size: 1.75em; }
    .threshold-grid { grid-template-columns: repeat(2,1fr); }
    .related-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .wrap { padding: 0 16px; }
}