/* how-it-works: extends style.css, numbered narrative layout */
.topnav { display: flex; gap: 20px; align-items: center; }
.topnav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: color .2s; }
.topnav a:hover { color: var(--ink); }
.topnav a.cur { color: var(--mint); }

.hiw { max-width: 940px; }

/* INTRO */
.hiw-intro { padding: 40px 0 30px; border-bottom: 1px solid var(--border); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--mint); letter-spacing: .04em; }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 8px var(--mint); animation: pulse 2.4s ease-in-out infinite; }
.hiw-intro h1 { font-size: clamp(36px, 7vw, 60px); font-weight: 900; letter-spacing: -.03em; line-height: 1.02; margin: 16px 0 18px; }
.hiw-intro h1 .hl { background: linear-gradient(120deg, #00ffc8, #38bdf8); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lede { font-size: 18px; line-height: 1.6; color: #cfd3d0; max-width: 760px; }
.lede strong { color: var(--ink); font-weight: 700; }

.kpi-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; margin-top: 28px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.kpi { background: var(--bg); padding: 16px 14px; display: flex; flex-direction: column; gap: 6px; }
.kpi-l { font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-2); }
.kpi-v { font-family: var(--mono); font-size: 15px; font-weight: 700; color: var(--ink); }

/* BLOCKS */
.hiw-block { padding: 46px 0; border-bottom: 1px solid var(--border); position: relative; }
.step { font-family: var(--mono); font-size: 13px; color: var(--mint); letter-spacing: .1em; }
.hiw-block h2 { font-size: clamp(24px, 4vw, 34px); font-weight: 800; letter-spacing: -.02em; margin: 8px 0 16px; }
.hiw-block > p { font-size: 16px; line-height: 1.65; color: #c2c6c3; max-width: 760px; }
.hiw-block em { color: var(--mint); font-style: normal; }
.caveat { margin-top: 18px !important; font-size: 13.5px !important; color: var(--muted) !important; border-left: 2px solid var(--border-bright); padding-left: 14px; }
.mono { font-family: var(--mono); color: var(--ink); }

/* phases */
.phases { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0 6px; }
.phase { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.ph-tag { font-family: var(--mono); font-size: 11px; color: var(--mint); letter-spacing: .05em; }
.phase h3 { font-size: 18px; font-weight: 700; margin: 8px 0 14px; }
.phase ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.phase li { font-size: 14px; color: #b8bcb9; padding-left: 18px; position: relative; line-height: 1.4; }
.phase li::before { content: "◇"; position: absolute; left: 0; color: var(--mint); font-size: 11px; top: 2px; }
.phase strong { color: var(--ink); }

/* layers */
.layers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 24px 0 6px; }
.layers.two { grid-template-columns: repeat(2, 1fr); }
.layer { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 20px; position: relative; overflow: hidden; }
.layer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.l-mint::before { background: var(--c0); } .l-sky::before { background: var(--c1); } .l-violet::before { background: var(--c2); }
.layer-h { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: .04em; }
.layer h3 { font-size: 17px; font-weight: 700; margin: 8px 0 12px; }
.layer p { font-size: 13.5px; line-height: 1.55; color: #b3b7b4; }
.layer strong { color: var(--ink); }

/* flow */
.flow { margin: 24px 0 6px; }
.flow-row { display: flex; align-items: stretch; gap: 10px; flex-wrap: wrap; }
.flow-step { flex: 1; min-width: 150px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.fs-lab { font-family: var(--mono); font-size: 11px; color: var(--mint); letter-spacing: .05em; }
.fs-val { font-size: 13.5px; color: #c2c6c3; line-height: 1.4; }
.flow-arr { align-self: center; color: var(--muted-2); font-size: 18px; }

/* basket tile */
.basket-tile { margin: 22px 0 4px; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.bt-row { display: grid; grid-template-columns: 28px 1fr auto auto auto; gap: 14px; align-items: center; padding: 14px 18px; border-top: 1px solid var(--border); font-size: 14px; }
.bt-row:first-child { border-top: 0; }
.bt-rank { font-family: var(--mono); font-size: 12px; color: var(--muted-2); }
.bt-asset { display: flex; align-items: center; gap: 10px; }
.bt-dot { width: 10px; height: 10px; border-radius: 3px; }
.bt-name { font-weight: 700; } .bt-pin { color: var(--mint); font-size: 11px; }
.bt-mech { font-size: 12px; color: var(--muted); }
.bt-w { font-family: var(--mono); font-size: 13px; text-align: right; }
.bt-chg { font-family: var(--mono); font-size: 13px; text-align: right; }
.bt-chg.up { color: var(--up); } .bt-chg.down { color: var(--down); }
.bt-price { font-family: var(--mono); font-size: 13px; color: var(--muted); text-align: right; }

/* hard limits */
.hard-limits { list-style: none; margin: 22px 0 4px; display: flex; flex-direction: column; gap: 12px; }
.hard-limits li { font-size: 15px; line-height: 1.55; color: #c2c6c3; padding-left: 24px; position: relative; }
.hard-limits li::before { content: "■"; position: absolute; left: 0; color: var(--mint); font-size: 10px; top: 5px; }
.hard-limits strong { color: var(--ink); }

/* footer */
.hiw-foot { padding: 44px 0 0; }
.cta { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 15px; color: #00150f; background: linear-gradient(135deg, #00ffc8, #45e0ff); border-radius: 999px; padding: 13px 24px; margin-right: 12px; box-shadow: 0 6px 26px rgba(0,255,200,.26); transition: transform .18s; }
.cta:hover { transform: translateY(-1px); }
.cta-line { background: transparent; color: var(--ink); border: 1px solid var(--border); box-shadow: none; }
.legal { margin-top: 22px; font-size: 12.5px; line-height: 1.6; color: var(--muted-2); max-width: 760px; }

@media (max-width: 820px) {
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .phases, .layers { grid-template-columns: 1fr; }
  .flow-arr { transform: rotate(90deg); }
  .bt-row { grid-template-columns: 24px 1fr auto; }
  .bt-price { display: none; }
}