.section-tag { font-size: 11.5px; font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; color: var(--purple-2); display: inline-block; margin-bottom: 14px; }
.brand .bt { display: flex; flex-direction: column; line-height: 1.05; }
.brand .bt .tag { font-size: 9.5px; font-weight: 500; letter-spacing: .4px; color: var(--text-3); margin-top: 3px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-4); flex-wrap: wrap; padding: 20px 0 10px; }
.breadcrumb a { color: var(--text-3); } .breadcrumb a:hover { color: var(--text-2); }
.breadcrumb .cur { color: var(--purple-2); }

/* Hero */
.author-hero { display: grid; grid-template-columns: 1.05fr 0.72fr 0.82fr; gap: 30px; align-items: center; padding: 12px 0 30px; }
.ah-tag { font-size: 11px; font-weight: 700; letter-spacing: 1px; color: var(--purple-2); background: rgba(139,92,246,0.12); border: 1px solid rgba(139,92,246,0.25); padding: 5px 12px; border-radius: 999px; display: inline-block; margin-bottom: 14px; }
.author-hero h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }
.author-hero .role { font-size: 17px; font-weight: 700; color: var(--purple-2); margin-top: 8px; }
.author-hero .bio { font-size: 14px; color: var(--text-2); line-height: 1.7; margin: 18px 0 18px; max-width: 420px; }
.ah-social { display: flex; gap: 10px; margin-bottom: 22px; }
.ah-social a { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); background: var(--card); display: grid; place-items: center; color: var(--text-2); transition: all .18s ease; }
.ah-social a:hover { color: #fff; border-color: var(--border-glow); background: rgba(139,92,246,0.12); }
.ah-social svg { width: 18px; height: 18px; }
.ah-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.ah-photo { position: relative; aspect-ratio: 3/3.4; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-2); background: radial-gradient(120% 120% at 50% 25%, #3a2d6e, #171335 55%, #0a0a14); display: grid; place-items: center; }
.ah-photo::before { content:""; position:absolute; width:200px; height:200px; border-radius:50%; background: radial-gradient(circle, rgba(139,92,246,0.5), transparent 65%); top: 18%; }
.ah-photo .mono { position: relative; font-size: 72px; font-weight: 900; color: rgba(255,255,255,0.92); text-shadow: 0 6px 30px rgba(0,0,0,0.5); }
.ah-photo::after { content:""; position:absolute; bottom:0; left:0; right:0; height:40%; background: linear-gradient(to top, rgba(10,10,20,0.7), transparent); }
.ah-stats { display: grid; gap: 12px; }
.stat-lg { display: flex; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; transition: border-color .2s ease, transform .2s ease; }
.stat-lg:hover { border-color: var(--border-glow); transform: translateX(3px); }
.stat-lg .ic { width: 42px; height: 42px; border-radius: 11px; background: rgba(139,92,246,0.12); border: 1px solid rgba(139,92,246,0.22); color: var(--purple-2); display: grid; place-items: center; flex-shrink: 0; }
.stat-lg .ic svg { width: 20px; height: 20px; }
.stat-lg .n { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.stat-lg .l { font-size: 12px; color: var(--text-3); }

/* Expertise */
.exp-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px 30px; }
.exp-panel .ttl { font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; color: var(--purple-2); margin-bottom: 20px; }
.exp-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px 16px; }
.exp-item { display: flex; align-items: center; gap: 10px; }
.exp-item .ic { width: 34px; height: 34px; border-radius: 9px; background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.2); color: var(--purple-2); display: grid; place-items: center; flex-shrink: 0; }
.exp-item .ic svg { width: 17px; height: 17px; }
.exp-item span { font-size: 13px; font-weight: 600; color: var(--text-2); }

/* Experience + methodology */
.two-col { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: 24px; align-items: stretch; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px 28px; }
.panel .ttl { font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; color: var(--purple-2); margin-bottom: 22px; }
.panel h3 { font-size: 19px; font-weight: 800; margin-bottom: 20px; }
.xp-item { display: grid; grid-template-columns: 96px 1fr; gap: 14px; padding-bottom: 18px; }
.xp-item:not(:last-child) { position: relative; }
.xp-item .yr { font-size: 12px; font-weight: 700; color: var(--purple-2); padding-top: 1px; }
.xp-item .dot { position: relative; }
.xp-item .r-t { font-size: 14px; font-weight: 700; }
.xp-item .r-c { font-size: 12.5px; color: var(--text-3); margin-top: 2px; }
.xp-list { position: relative; }
.xp-row { display: grid; grid-template-columns: 90px 14px 1fr; gap: 12px; align-items: start; }
.xp-row .yr { font-size: 12px; font-weight: 700; color: var(--purple-2); text-align: right; padding-top: 1px; }
.xp-row .ln { position: relative; display: flex; justify-content: center; }
.xp-row .ln::before { content:""; width: 9px; height: 9px; border-radius: 50%; background: var(--purple); margin-top: 4px; box-shadow: 0 0 0 4px rgba(139,92,246,0.15); }
.xp-row:not(:last-child) .ln::after { content:""; position: absolute; top: 13px; bottom: -18px; width: 1px; background: var(--border-2); }
.xp-row .c { padding-bottom: 22px; }
.xp-row .c .t { font-size: 14px; font-weight: 700; }
.xp-row .c .s { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.method-flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; position: relative; margin-bottom: 24px; }
.method-flow .ln { position: absolute; top: 24px; left: 8%; right: 8%; height: 1px; background: linear-gradient(90deg, transparent, rgba(139,92,246,0.5), rgba(79,123,255,0.5), transparent); }
.method-flow .st { text-align: center; position: relative; }
.method-flow .st .nd { width: 48px; height: 48px; margin: 0 auto 12px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, rgba(139,92,246,0.2), rgba(12,12,20,0.95)); border: 1px solid rgba(139,92,246,0.4); display: grid; place-items: center; color: var(--purple-2); }
.method-flow .st .nd svg { width: 20px; height: 20px; }
.method-flow .st h5 { font-size: 11.5px; font-weight: 700; margin-bottom: 4px; }
.method-flow .st p { font-size: 10px; color: var(--text-3); line-height: 1.4; }
.method-quote { background: var(--grad-card); border: 1px solid rgba(139,92,246,0.22); border-radius: var(--radius); padding: 18px 22px; text-align: center; font-size: 13.5px; color: var(--text-2); line-height: 1.6; font-style: italic; }

/* Featured articles */
.fa-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.fa-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .2s ease, transform .2s ease; display: flex; flex-direction: column; }
.fa-card:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.fa-cover { aspect-ratio: 16/11; display: grid; place-items: center; position: relative; }
.fa-cover .orb { font-size: 22px; font-weight: 900; color: rgba(255,255,255,0.85); text-shadow: 0 0 24px rgba(139,92,246,0.9); }
.fa-body { padding: 13px; flex: 1; display: flex; flex-direction: column; }
.fa-body .cat { font-size: 9px; font-weight: 700; letter-spacing: .5px; color: var(--purple-2); margin-bottom: 7px; }
.fa-body h4 { font-size: 12.5px; font-weight: 700; line-height: 1.35; flex: 1; }
.fa-body .mt { display: flex; align-items: center; justify-content: space-between; margin-top: 11px; }
.fa-body .mt .d { font-size: 10px; color: var(--text-4); }
.fa-body .mt .go { width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--border-2); display: grid; place-items: center; color: var(--purple-2); }
.fa-body .mt .go svg { width: 11px; height: 11px; }

/* three-col lists */
.three-col { display: grid; grid-template-columns: 1fr 1fr 0.9fr; gap: 22px; align-items: stretch; }
.list-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px 26px; }
.list-card .ttl { font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; color: var(--purple-2); margin-bottom: 18px; }
.lrow { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); }
.lrow:first-of-type { padding-top: 0; }
.lrow .ic { width: 34px; height: 34px; border-radius: 9px; background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.2); color: var(--purple-2); display: grid; place-items: center; flex-shrink: 0; }
.lrow .ic svg { width: 16px; height: 16px; }
.lrow .t { font-size: 13px; font-weight: 700; line-height: 1.35; }
.lrow .s { font-size: 11.5px; color: var(--text-3); margin-top: 3px; }
.lrow .ch { margin-left: auto; color: var(--text-4); align-self: center; }
.list-card .more { font-size: 12px; color: var(--purple-2); font-weight: 600; display: inline-flex; gap: 5px; align-items: center; margin-top: 16px; }
.sig-card { background: radial-gradient(120% 120% at 80% 20%, #24104f, #0d0d1a 60%); display: flex; flex-direction: column; justify-content: center; }
.sig-card .q { font-size: 40px; font-weight: 900; color: var(--purple); line-height: .5; opacity: .5; }
.sig-card p { font-size: 16px; color: var(--text); line-height: 1.55; margin: 10px 0 20px; font-weight: 500; }
.sig-card .sig { font-family: cursive; font-size: 26px; color: var(--purple-2); opacity: .85; }

/* Latest list */
.latest-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 30px; }
.lt-row { display: grid; grid-template-columns: 84px 1fr; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); align-items: center; }
.lt-row .th { aspect-ratio: 16/11; border-radius: 10px; display: grid; place-items: center; color: rgba(255,255,255,0.8); font-weight: 800; font-size: 13px; }
.lt-row h4 { font-size: 13.5px; font-weight: 700; line-height: 1.35; }
.lt-row .m { font-size: 11px; color: var(--text-4); margin-top: 5px; }

/* CTA */
.author-cta { background: var(--grad-cta); border-radius: var(--radius-lg); padding: 44px; position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.author-cta::before { content:""; position:absolute; inset:0; background: radial-gradient(500px 300px at 88% 12%, rgba(255,255,255,0.16), transparent 60%); }
.author-cta h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; line-height: 1.15; position: relative; }
.author-cta .r { position: relative; text-align: right; }
.author-cta .r p { color: rgba(255,255,255,0.9); font-size: 14px; margin-bottom: 16px; }
.author-cta .btn-white { background: #fff; color: #4c1d95; }

/* gradients */
.gr-cosmic-1 { background: radial-gradient(120% 120% at 20% 10%, #1d4ed8 0%, #0b1030 45%, #07070d 100%); }
.gr-cosmic-2 { background: radial-gradient(120% 120% at 80% 10%, #7c3aed 0%, #24104f 45%, #07070d 100%); }
.gr-cosmic-3 { background: radial-gradient(120% 120% at 50% 90%, #1e3a8a 0%, #0b1030 50%, #07070d 100%); }
.gr-c4 { background: radial-gradient(120% 120% at 30% 80%, #831843, #2a1030 55%, #07070d); }
.gr-c5 { background: radial-gradient(120% 120% at 70% 20%, #4338ca, #14163a 55%, #07070d); }

@media (max-width: 1080px) {
  .author-hero { grid-template-columns: 1fr 1fr; }
  .ah-stats { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); }
  .exp-grid { grid-template-columns: repeat(3, 1fr); }
  .fa-grid { grid-template-columns: repeat(3, 1fr); }
  .two-col, .three-col { grid-template-columns: 1fr; }
  .method-flow { grid-template-columns: repeat(3, 1fr); gap: 22px 6px; } .method-flow .ln { display: none; }
}
@media (max-width: 620px) {
  .author-hero { grid-template-columns: 1fr; } .ah-photo { max-width: 300px; }
  .ah-stats { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: 1fr 1fr; }
  .fa-grid, .latest-grid { grid-template-columns: 1fr; }
  .method-flow { grid-template-columns: 1fr 1fr; }
  .author-cta { grid-template-columns: 1fr; } .author-cta .r { text-align: left; }
}