/* =============================================
   Lesson 07 — ATS Explainer
   Unique component styles
   ============================================= */

/* ATS HERO DIAGRAM */
.ats-hero-diagram { margin-top:52px; opacity:0; animation:fadeUp .8s ease .8s forwards; display:flex; align-items:center; gap:0; flex-wrap:wrap; justify-content:center; }
.ats-node { background:var(--navy-light); border:1px solid rgba(3,136,166,.25); border-radius:12px; padding:14px 18px; text-align:center; min-width:100px; }
.ats-node.highlight { background:rgba(3,136,166,.12); border-color:rgba(3,136,166,.6); }
.ats-node .node-label { font-family:"DM Mono",monospace; font-size:8px; letter-spacing:.18em; color:var(--blue); text-transform:uppercase; margin-bottom:4px; }
.ats-node .node-name { font-family:"Lora",serif; font-size:.85rem; font-weight:700; }
.ats-node.highlight .node-name { color:var(--blue-light); }
.ats-arrow { display:flex; align-items:center; padding:0 6px; color:var(--blue); font-size:.9rem; }
.ats-arrow svg { flex-shrink:0; }

/* MARKET LANDSCAPE */
.market-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:52px; }
.market-card { border-radius:16px; padding:32px; position:relative; overflow:hidden; transition:transform .3s,box-shadow .3s; }
.market-card:hover { transform:translateY(-5px); box-shadow:0 20px 50px rgba(0,0,0,.4); }
.market-card::before { content:""; position:absolute; top:0; left:0; right:0; height:3px; }
.market-card.exchange { background:rgba(94,219,160,.05); border:1px solid rgba(94,219,160,.2); }
.market-card.exchange::before { background:var(--green); }
.market-card.ats { background:var(--blue-faint); border:1px solid rgba(3,136,166,.3); }
.market-card.ats::before { background:linear-gradient(90deg,var(--blue),var(--blue-light)); }
.market-card.otc { background:rgba(255,154,60,.05); border:1px solid rgba(255,154,60,.2); }
.market-card.otc::before { background:var(--orange); }
.market-type { font-family:"DM Mono",monospace; font-size:9px; letter-spacing:.2em; text-transform:uppercase; margin-bottom:12px; }
.market-card.exchange .market-type { color:var(--green); }
.market-card.ats .market-type { color:var(--blue-light); }
.market-card.otc .market-type { color:var(--orange); }
.market-card h3 { font-family:"Lora",serif; font-size:1.1rem; margin-bottom:12px; }
.market-card p { font-size:.875rem; color:var(--white-dim); line-height:1.7; margin:0; }
.market-card .example { margin-top:14px; font-family:"DM Mono",monospace; font-size:.75rem; color:rgba(255,255,255,.4); }

/* HOW ATS WORKS (flow rows) */
.flow-steps { display:flex; flex-direction:column; gap:0; margin-top:52px; }
.flow-row { display:grid; grid-template-columns:72px 1fr; gap:24px; align-items:stretch; }
.flow-line { display:flex; flex-direction:column; align-items:center; }
.flow-circle { width:52px; height:52px; border-radius:50%; background:var(--blue-dim); border:2px solid rgba(3,136,166,.4); display:flex; align-items:center; justify-content:center; flex-shrink:0; z-index:1; }
.flow-connector { width:2px; flex:1; background:linear-gradient(to bottom,rgba(3,136,166,.4),rgba(3,136,166,.1)); margin:4px auto; }
.flow-row:last-child .flow-connector { display:none; }
.flow-content { padding-bottom:44px; }
.flow-content h4 { font-family:"Lora",serif; font-size:1.1rem; margin-bottom:8px; }
.flow-content p { font-size:.92rem; color:var(--white-dim); margin:0; max-width:600px; line-height:1.75; }

/* OPEN VS CLOSED PANELS */
.open-closed { display:grid; grid-template-columns:1fr 1fr; gap:24px; margin-top:52px; }
.oc-panel { border-radius:18px; padding:36px; position:relative; overflow:hidden; }
.oc-panel::before { content:""; position:absolute; top:0; left:0; right:0; height:4px; }
.oc-panel.closed { background:rgba(255,154,60,.05); border:1px solid rgba(255,154,60,.25); }
.oc-panel.closed::before { background:var(--orange); }
.oc-panel.open { background:rgba(94,219,160,.05); border:1px solid rgba(94,219,160,.25); }
.oc-panel.open::before { background:var(--green); }
.oc-label { font-family:"DM Mono",monospace; font-size:10px; letter-spacing:.25em; text-transform:uppercase; margin-bottom:14px; }
.oc-panel.closed .oc-label { color:var(--orange); }
.oc-panel.open .oc-label { color:var(--green); }
.oc-panel h3 { font-family:"Lora",serif; font-size:1.3rem; margin-bottom:16px; }
.oc-list { display:flex; flex-direction:column; gap:12px; margin-top:20px; }
.oc-item { display:flex; gap:12px; align-items:flex-start; font-size:.875rem; color:var(--white-dim); }
.oc-item svg { flex-shrink:0; margin-top:2px; }
.oc-callout { margin-top:24px; border-radius:10px; padding:16px 18px; font-size:.85rem; line-height:1.7; }
.oc-panel.closed .oc-callout { background:rgba(255,154,60,.08); color:rgba(255,255,255,.65); }
.oc-panel.open .oc-callout { background:rgba(94,219,160,.08); color:rgba(255,255,255,.75); }

/* BENEFIT CARDS */
.benefit-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:20px; margin-top:52px; }
.benefit-card { background:var(--navy-light); border:1px solid rgba(3,136,166,.14); border-radius:16px; padding:30px; position:relative; overflow:hidden; transition:transform .3s,border-color .3s,box-shadow .3s; }
.benefit-card::before { content:""; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,var(--blue),var(--blue-light)); }
.benefit-card:hover { transform:translateY(-5px); border-color:rgba(3,136,166,.35); box-shadow:0 20px 60px rgba(0,0,0,.4); }
.benefit-card .icon { width:46px; height:46px; border-radius:11px; background:var(--blue-dim); display:flex; align-items:center; justify-content:center; margin-bottom:18px; }
.benefit-card h3 { font-family:"Lora",serif; font-size:1.05rem; margin-bottom:8px; }
.benefit-card p { font-size:.86rem; color:var(--white-dim); line-height:1.75; margin:0; }

/* PARTICIPANT TABS */
.participant-tabs { margin-top:52px; }
.tab-buttons { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:24px; }
.tab-btn { font-family:"DM Mono",monospace; font-size:10px; letter-spacing:.15em; text-transform:uppercase; padding:10px 22px; border-radius:30px; border:1px solid rgba(255,255,255,.12); background:transparent; color:var(--white-dim); cursor:pointer; transition:all .25s; }
.tab-btn.active { background:var(--blue-dim); border-color:rgba(3,136,166,.5); color:var(--blue-light); }
.tab-content { display:none; }
.tab-content.active { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.tab-panel { background:var(--navy-light); border:1px solid rgba(3,136,166,.14); border-radius:16px; padding:32px; }
.tab-panel h4 { font-family:"Lora",serif; font-size:1.05rem; margin-bottom:14px; }
.tab-panel ul { display:flex; flex-direction:column; gap:10px; list-style:none; }
.tab-panel ul li { display:flex; gap:10px; font-size:.88rem; color:var(--white-dim); align-items:flex-start; line-height:1.6; }
.tab-panel ul li svg { flex-shrink:0; margin-top:2px; }

/* COMPARE TABLE (3-column: exchange, ATS, OTC) */
.compare-table { width:100%; border-collapse:collapse; }
.compare-table th { font-family:"DM Mono",monospace; font-size:10px; letter-spacing:.2em; text-transform:uppercase; padding:14px 20px; text-align:left; }
.compare-table th:first-child { color:var(--white-dim); }
.compare-table th.col-nat { color:var(--green); background:rgba(94,219,160,.06); border-radius:8px 8px 0 0; }
.compare-table th.col-ats { color:var(--blue-light); background:rgba(3,136,166,.06); border-radius:8px 8px 0 0; }
.compare-table th.col-otc { color:var(--orange); background:rgba(255,154,60,.05); border-radius:8px 8px 0 0; }
.compare-table td { padding:14px 20px; font-size:.88rem; border-bottom:1px solid rgba(255,255,255,.05); vertical-align:top; color:var(--white-dim); }
.compare-table td:first-child { font-weight:500; font-size:.82rem; font-family:"DM Mono",monospace; color:var(--white-dim); }
.compare-table td:nth-child(2) { background:rgba(94,219,160,.03); }
.compare-table td:nth-child(3) { background:rgba(3,136,166,.03); }
.compare-table td:nth-child(4) { background:rgba(255,154,60,.03); }

/* RESPONSIVE */
@media(max-width:1024px){
  .market-grid { grid-template-columns:1fr; }
  .open-closed, .tab-content.active { grid-template-columns:1fr; }
  .ats-hero-diagram { gap:8px; }
}

@media(max-width:600px){
  .ats-node { min-width:80px; padding:10px 12px; }
  .ats-node .node-label { font-size:10px; }
  .ats-node .node-name { font-size:.78rem; }
}