:root {
  --bg: #0d0d0d;
  --bg2: #111111;
  --bg3: #1a1a1a;
  --border: #222222;
  --gold: #c9a84c;
  --green: #4caf7d;
  --blue: #3b9eff;
  --red: #e05252;
  --text: #e0e0e0;
  --muted: #888888;
  --dim: #555555;
  --white: #ffffff;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
nav {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo {
  font-size: 18px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 1px;
}
.nav-logo span { color: var(--text); font-weight: 400; }
.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); text-decoration: none; }
.nav-cta {
  background: var(--gold);
  color: #0d0d0d !important;
  font-weight: 700 !important;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px !important;
}
.nav-cta:hover { opacity: 0.9; text-decoration: none !important; }

/* HERO */
.hero {
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 100%);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero h1 span { color: var(--gold); }
.hero p {
  font-size: 17px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.88; text-decoration: none; }
.btn-primary { background: var(--gold); color: #0d0d0d; }
.btn-secondary { background: transparent; color: var(--gold); border: 2px solid var(--gold); }

/* CONTAINER */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section { padding: 60px 0; }

/* CARDS GRID */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--gold); }
.card-icon { font-size: 28px; margin-bottom: 12px; }
.card h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--muted); line-height: 1.6; }
.card a.card-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
}

/* ARTICLE CARD */
.article-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  padding: 20px 24px;
  display: block;
  transition: border-color 0.15s, background 0.15s;
}
.article-card:hover { background: var(--bg3); border-color: var(--gold); text-decoration: none; }
.article-card .cat {
  font-size: 11px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.article-card h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.article-card p { font-size: 13px; color: var(--muted); }
.article-card .read-time { font-size: 11px; color: var(--dim); margin-top: 8px; }

/* ARTICLE PAGE */
.article-hero {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 48px 24px;
}
.article-meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.article-meta span { color: var(--gold); }
.article-hero h1 { font-size: clamp(22px, 4vw, 38px); font-weight: 900; color: var(--white); line-height: 1.2; margin-bottom: 12px; }
.article-hero .intro { font-size: 16px; color: var(--muted); max-width: 700px; line-height: 1.7; }

.article-body { max-width: 780px; margin: 0 auto; padding: 48px 24px; }
.article-body h2 { font-size: 22px; font-weight: 800; color: var(--gold); margin: 40px 0 14px; }
.article-body h3 { font-size: 17px; font-weight: 700; color: var(--green); margin: 28px 0 10px; }
.article-body p { margin-bottom: 16px; font-size: 16px; line-height: 1.8; }
.article-body ul, .article-body ol { margin: 0 0 16px 24px; }
.article-body li { margin-bottom: 8px; font-size: 15px; line-height: 1.7; }
.article-body strong { color: var(--white); }

.infobox {
  background: var(--bg3);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 15px;
}
.infobox.green { border-color: var(--green); }
.infobox.blue { border-color: var(--blue); }
.infobox.red { border-color: var(--red); }
.infobox strong { display: block; margin-bottom: 6px; color: var(--gold); }
.infobox.green strong { color: var(--green); }
.infobox.blue strong { color: var(--blue); }
.infobox.red strong { color: var(--red); }

.formula {
  background: #0a0a0a;
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 14px 20px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--green);
  margin: 20px 0;
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; margin: 20px 0; }
th { background: var(--gold); color: #0d0d0d; font-weight: 700; padding: 10px 12px; font-size: 13px; text-align: left; }
td { padding: 9px 12px; font-size: 14px; border-bottom: 1px solid var(--border); }
tr:nth-child(even) { background: var(--bg3); }

/* AFFILIATE BOX */
.aff-box {
  background: linear-gradient(135deg, rgba(201,168,76,0.08), rgba(201,168,76,0.03));
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 12px;
  padding: 24px;
  margin: 32px 0;
  text-align: center;
}
.aff-box .aff-title { font-size: 18px; font-weight: 800; color: var(--gold); margin-bottom: 8px; }
.aff-box p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.aff-box .aff-btn {
  display: inline-block;
  background: var(--gold);
  color: #0d0d0d;
  font-weight: 900;
  font-size: 14px;
  padding: 10px 28px;
  border-radius: 25px;
  text-decoration: none;
}
.aff-note { font-size: 11px; color: var(--dim); margin-top: 10px; }

/* CALCULATOR */
.calc-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  margin: 24px 0;
}
.calc-box h3 { font-size: 16px; font-weight: 700; color: var(--gold); margin-bottom: 20px; }
.calc-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 16px; }
.calc-field { flex: 1; min-width: 140px; }
.calc-field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; letter-spacing: 1px; text-transform: uppercase; }
.calc-field input {
  width: 100%;
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s;
}
.calc-field input:focus { border-color: var(--gold); }
.calc-btn {
  background: var(--gold);
  color: #0d0d0d;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 24px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.calc-result {
  background: #0a0a0a;
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 16px;
  display: none;
}
.calc-result.show { display: block; }
.calc-result .result-value { font-size: 28px; font-weight: 900; color: var(--green); }
.calc-result .result-label { font-size: 13px; color: var(--muted); margin-top: 4px; }
.result-positive { color: var(--green); }
.result-negative { color: var(--red); }

/* CATEGORY FILTER */
.cat-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.cat-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.cat-btn:hover, .cat-btn.active {
  background: rgba(201,168,76,0.1);
  border-color: var(--gold);
  color: var(--gold);
}

/* BREADCRUMB */
.breadcrumb { font-size: 13px; color: var(--dim); padding: 12px 24px; max-width: 1100px; margin: 0 auto; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--gold); }

/* SECTION TITLES */
.section-title { font-size: 26px; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.section-sub { font-size: 15px; color: var(--muted); margin-bottom: 32px; }

/* DISCLAIMER */
.disclaimer {
  background: var(--bg3);
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--dim);
  line-height: 1.6;
}

/* FOOTER */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 48px 24px 24px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; margin-bottom: 40px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--muted); font-size: 13px; }
.footer-col ul li a:hover { color: var(--gold); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { font-size: 12px; color: var(--dim); }

/* TAGS */
.tag {
  display: inline-block;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.2);
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.tag.green { background: rgba(76,175,125,0.1); border-color: rgba(76,175,125,0.2); color: var(--green); }
.tag.blue { background: rgba(59,158,255,0.1); border-color: rgba(59,158,255,0.2); color: var(--blue); }

/* RELATED */
.related { border-top: 1px solid var(--border); padding-top: 40px; margin-top: 40px; }
.related h3 { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 20px; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 48px 16px; }
  .article-body { padding: 32px 16px; }
  .calc-row { flex-direction: column; }
}

/* HOME STATS BAR */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 48px;
  padding: 32px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-value { font-size: 28px; font-weight: 900; color: var(--gold); }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 4px; }