/* ============================================================
   MEN / FINISH + SEASONAL / L3 BATCH
   Noir steel hubs for routines, weather maps, diagnostics,
   guide inventories, and route-visible leaf links.
   ============================================================ */

.mfsl3-hero {
  min-height: clamp(640px, 90vh, 880px);
  position: relative;
  overflow: hidden;
  background: var(--bg);
  color: #f4efe5;
}
.mfsl3-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(7,9,10,0.96) 0%, rgba(7,9,10,0.78) 42%, rgba(7,9,10,0.24) 100%),
    linear-gradient(0deg, rgba(7,9,10,0.98) 0%, rgba(7,9,10,0.60) 24%, transparent 60%);
}
.mfsl3-hero-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(0.22) saturate(0.62) brightness(0.64) contrast(1.14);
  transform: scale(1.025);
}
.mfsl3-steel-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.25;
  background:
    linear-gradient(90deg, rgba(180,194,202,0.13) 1px, transparent 1px) 0 0 / 92px 92px,
    linear-gradient(0deg, rgba(180,194,202,0.10) 1px, transparent 1px) 0 0 / 92px 92px;
  mix-blend-mode: screen;
}
.mfsl3-hero .frame {
  position: relative;
  z-index: 2;
  min-height: clamp(640px, 90vh, 880px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 36px;
  padding-top: clamp(34px, 5vw, 70px);
  padding-bottom: clamp(34px, 5vw, 70px);
}
.mfsl3-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(244,239,229,0.58);
}
.mfsl3-crumb a { color: rgba(244,239,229,0.62); }
.mfsl3-crumb a:hover,
.mfsl3-crumb span:last-child { color: #f4efe5; }
.mfsl3-hero-copy {
  align-self: center;
  max-width: 1040px;
}
.mfsl3-kicker {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.mfsl3-hero h1 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(64px, 10vw, 158px);
  line-height: 0.86;
  letter-spacing: -0.028em;
  max-width: 1040px;
  margin: 0;
  text-wrap: balance;
}
.mfsl3-hero h1 span {
  display: block;
  font-style: italic;
  color: rgba(244,239,229,0.82);
}
.mfsl3-hero p {
  font-family: var(--f-display);
  font-style: italic;
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.38;
  max-width: 760px;
  color: rgba(244,239,229,0.78);
  margin: 26px 0 0;
}
.mfsl3-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(244,239,229,0.2);
  border-left: 1px solid rgba(244,239,229,0.2);
  backdrop-filter: blur(10px);
}
.mfsl3-stats div {
  padding: 18px 20px;
  border-right: 1px solid rgba(244,239,229,0.2);
  background: rgba(7,9,10,0.28);
}
.mfsl3-stats span {
  display: block;
  font-family: var(--f-display);
  font-size: clamp(28px, 3vw, 46px);
  line-height: 0.9;
  color: #f4efe5;
}
.mfsl3-stats small {
  display: block;
  margin-top: 10px;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
}

.mfsl3-nav {
  position: sticky;
  top: 70px;
  z-index: 40;
  background: var(--bg);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.mfsl3-nav .frame {
  display: flex;
  align-items: center;
  gap: 26px;
  padding-top: 14px;
  padding-bottom: 14px;
  overflow-x: auto;
}
.mfsl3-nav .label,
.mfsl3-nav a {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  white-space: nowrap;
}
.mfsl3-nav .label { color: var(--ink-mute); }
.mfsl3-nav .links { display: flex; gap: 22px; align-items: center; }
.mfsl3-nav a { color: var(--ink-dim); padding-bottom: 4px; border-bottom: 1px solid transparent; }
.mfsl3-nav a span { color: var(--gold); margin-right: 7px; }
.mfsl3-nav a:hover { color: var(--ink); border-bottom-color: var(--gold); }

.mfsl3-intro .frame {
  display: grid;
  grid-template-columns: 0.8fr 1.7fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.mfsl3-intro aside {
  position: sticky;
  top: 142px;
  display: grid;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}
.mfsl3-intro aside div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-mute);
}
.mfsl3-intro aside b { color: var(--ink); font-weight: 500; text-align: right; }
.mfsl3-intro .standfirst {
  font-family: var(--f-display);
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 24px;
  text-wrap: pretty;
}
.mfsl3-intro .body p {
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.72;
  color: var(--ink-dim);
  max-width: 800px;
  margin: 0 0 14px;
}

.mfsl3-sec {
  border-top: 1px solid var(--rule);
  padding: clamp(54px, 6vw, 104px) 0;
}
.mfsl3-system-sec {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--bg) 94%, #7fb3d5 4%), var(--bg));
}
.mfsl3-head {
  display: grid;
  grid-template-columns: 80px 1.15fr 0.85fr;
  gap: 28px;
  align-items: end;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}
.mfsl3-head .num {
  font-family: var(--f-display);
  font-style: italic;
  font-size: clamp(32px, 3.4vw, 50px);
  line-height: 0.85;
  color: var(--gold);
}
.mfsl3-head span {
  display: block;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 8px;
}
.mfsl3-head h2 {
  font-family: var(--f-display);
  font-size: clamp(34px, 4vw, 62px);
  line-height: 0.96;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.mfsl3-head h2 em { color: var(--gold); font-style: italic; }
.mfsl3-head p {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 17px;
  line-height: 1.48;
  color: var(--ink-dim);
  margin: 0;
}

.mfsl3-protocol {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.mfsl3-protocol a {
  min-height: 280px;
  padding: 22px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  transition: background 0.2s, transform 0.2s;
}
.mfsl3-protocol a:hover,
.mfsl3-system a:hover,
.mfsl3-leaf-list .leaf-row:hover {
  background: rgba(127,179,213,0.05);
}
.mfsl3-protocol a:hover,
.mfsl3-system a:hover { transform: translateY(-2px); }
.mfsl3-protocol span,
.mfsl3-leaf-list .n {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}
.mfsl3-protocol h3 {
  margin: auto 0 16px;
  font-family: var(--f-display);
  font-size: clamp(25px, 2.5vw, 40px);
  line-height: 0.98;
  font-weight: 400;
}
.mfsl3-protocol p,
.mfsl3-system p,
.mfsl3-diagnosis p {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.62;
  color: var(--ink-dim);
}

.mfsl3-system {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.mfsl3-system a {
  min-height: 260px;
  padding: 26px 22px;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  transition: background 0.2s, transform 0.2s;
}
.mfsl3-system span {
  font-family: var(--f-display);
  font-size: clamp(28px, 2.7vw, 42px);
  line-height: 0.98;
  font-weight: 400;
  color: var(--ink);
}
.mfsl3-system b {
  margin-top: 18px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}
.mfsl3-system p { margin-top: auto; }

.mfsl3-diagnosis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.mfsl3-diagnosis article {
  background: var(--bg);
  min-height: 300px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}
.mfsl3-diagnosis span {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
}
.mfsl3-diagnosis h3 {
  margin: 24px 0 12px;
  font-family: var(--f-display);
  font-size: clamp(26px, 2.5vw, 38px);
  line-height: 1;
  font-weight: 400;
}
.mfsl3-diagnosis p { margin-top: auto; }

.mfsl3-leaf-list { border-top: 1px solid var(--rule); }
.mfsl3-leaf-list .leaf-row {
  display: grid;
  grid-template-columns: 58px minmax(210px, 0.9fr) minmax(280px, 1.2fr) 86px 28px;
  gap: 18px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  transition: padding 0.2s, background 0.2s;
}
.mfsl3-leaf-list .leaf-row:hover { padding-left: 8px; }
.mfsl3-leaf-list .t {
  font-family: var(--f-display);
  font-size: clamp(17px, 1.5vw, 22px);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
}
.mfsl3-leaf-list .path {
  font-family: var(--f-mono);
  font-size: 10px;
  line-height: 1.45;
  color: var(--ink-mute);
  overflow-wrap: anywhere;
}
.mfsl3-leaf-list .read {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  text-align: right;
}
.mfsl3-leaf-list .arr {
  font-family: var(--f-display);
  color: var(--ink-mute);
  text-align: right;
}

.mfsl3-faq {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.mfsl3-faq details {
  background: var(--bg);
  padding: 0;
}
.mfsl3-faq summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: 62px 1fr 24px;
  gap: 16px;
  align-items: baseline;
  padding: 22px;
}
.mfsl3-faq summary::-webkit-details-marker { display: none; }
.mfsl3-faq summary span {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.mfsl3-faq summary b {
  font-family: var(--f-display);
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.05;
  font-weight: 400;
  color: var(--ink);
}
.mfsl3-faq summary i {
  font-family: var(--f-display);
  font-style: normal;
  color: var(--ink-mute);
  text-align: right;
}
.mfsl3-faq details[open] summary i { color: var(--gold); }
.mfsl3-faq p {
  margin: -6px 22px 24px 100px;
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-dim);
}

@media (max-width: 1080px) {
  .mfsl3-stats,
  .mfsl3-protocol,
  .mfsl3-system,
  .mfsl3-diagnosis,
  .mfsl3-faq { grid-template-columns: repeat(2, 1fr); }
  .mfsl3-head,
  .mfsl3-intro .frame { grid-template-columns: 1fr; }
  .mfsl3-intro aside { position: static; }
  .mfsl3-leaf-list .leaf-row { grid-template-columns: 48px 1fr 1fr 76px 28px; }
}
@media (max-width: 700px) {
  .mfsl3-stats,
  .mfsl3-protocol,
  .mfsl3-system,
  .mfsl3-diagnosis,
  .mfsl3-faq { grid-template-columns: 1fr; }
  .mfsl3-leaf-list .leaf-row { grid-template-columns: 42px 1fr; }
  .mfsl3-leaf-list .path,
  .mfsl3-leaf-list .read,
  .mfsl3-leaf-list .arr { grid-column: 2; text-align: left; }
  .mfsl3-faq summary { grid-template-columns: 54px 1fr 20px; }
  .mfsl3-faq p { margin: -4px 22px 22px 76px; }
}