/* ==========================================================================
   CEO register (Operating Notes): thoughtful, human, organizational, disciplined.
   A warmer room in the same building: Stone surface, Newsreader serif,
   Forest accent, documentary photography. The grid, mono metadata,
   hairlines and diagram grammar stay exactly the same.
   ========================================================================== */

.ceo-sub { background: var(--bg); }
.ceo-mark { font-family: var(--f-serif); font-weight: 500; font-size: 20px; letter-spacing: -.01em; white-space: nowrap; display: inline-flex; align-items: center; gap: 8px; }
.ceo-mark i { width: 8px; height: 8px; border-radius: 50%; background: var(--forest); display: inline-block; }
.ceo-sub nav a.on { box-shadow: inset 0 -2px 0 var(--forest); }
.serif { font-family: var(--f-serif); }

/* ---- Masthead ---- */
.ceo-mast { padding-block: 72px 56px; }
.ceo-mast-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 64px; align-items: end; }
.ceo-mast h1 { font-family: var(--f-serif); font-weight: 440; font-size: clamp(44px, 6.6vw, 96px); line-height: .98; letter-spacing: -.025em; }
.ceo-mast h1 em { font-style: italic; color: var(--forest); }
.ceo-mast .lead { font-family: var(--f-serif); font-size: clamp(19px, 1.8vw, 23px); line-height: 1.5; margin-top: 24px; max-width: 46ch; }
.ceo-author { display: grid; gap: 12px; }
.ceo-author .ph { --ar: 4 / 5; }
.ceo-author .sig { font-family: var(--f-serif); font-style: italic; font-size: 20px; }
@media (max-width: 900px) { .ceo-mast-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; } .ceo-author { grid-template-columns: 140px minmax(0, 1fr); align-items: end; } }

/* ---- Featured essay ---- */
.essay-hero .ph { --ar: 21 / 9; }
.essay-grid { display: grid; grid-template-columns: 220px minmax(0, 1fr) 260px; gap: 48px; padding-top: 40px; align-items: start; }
.essay-meta { display: grid; gap: 10px; align-content: start; border-top: 1px solid var(--ink); padding-top: 12px; }
.essay-meta .tag { border-color: var(--line-strong); justify-self: start; }
.essay h2 { font-family: var(--f-serif); font-weight: 460; font-size: clamp(34px, 4.6vw, 62px); line-height: 1.02; letter-spacing: -.02em; }
.essay .dek { font-family: var(--f-serif); font-style: italic; font-size: clamp(19px, 1.8vw, 23px); line-height: 1.45; color: var(--muted); margin-top: 18px; max-width: 40ch; }
.essay-body { font-family: var(--f-serif); font-size: 20px; line-height: 1.65; color: var(--ink-2); margin-top: 32px; max-width: 62ch; }
.essay-body p + p { margin-top: 1em; }
.essay-body p:first-child::first-line { font-variant: small-caps; letter-spacing: .03em; }
.essay-pull { font-family: var(--f-serif); font-style: italic; font-size: clamp(24px, 2.6vw, 32px); line-height: 1.3; color: var(--forest); border-top: 1px solid var(--forest); border-bottom: 1px solid var(--forest); padding-block: 20px; margin-block: 32px; max-width: 30ch; }
.essay-side { display: grid; gap: 16px; align-content: start; border-top: 1px solid var(--ink); padding-top: 12px; }
.essay-side p { font-size: 14px; line-height: 1.5; color: var(--ink-2); }
@media (max-width: 1100px) { .essay-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; } .essay-meta { grid-template-columns: repeat(auto-fit, minmax(140px, auto)); justify-content: start; } }

/* Culture OS stack */
.os { display: grid; gap: 4px; margin-top: 36px; }
.os-row { display: grid; grid-template-columns: minmax(0, 1fr) 210px; gap: 16px; align-items: center; }
.os-bar { margin-inline: auto; border: 1.5px solid var(--ink); background: var(--surface); padding: 12px 16px; display: flex; justify-content: space-between; gap: 12px; align-items: baseline; width: var(--w); max-width: 100%; transition: background var(--t-fast) var(--ease); }
.os-bar:hover { background: var(--surface-2); }
.os-bar strong { font-family: var(--f-serif); font-weight: 520; font-size: 19px; }
.os-bar .meta { font-size: 10.5px; }
.os-row.kernel .os-bar { background: var(--ink); color: var(--bg); }
.os-row.kernel .os-bar .meta { color: var(--bg); opacity: .7; }
.os-note { font-family: var(--f-mono); font-stretch: 87.5%; font-size: 11px; line-height: 1.45; color: var(--forest); }
.os-note.muted { color: var(--muted); }
@media (max-width: 700px) { .os-row { grid-template-columns: minmax(0, 1fr); gap: 4px; } .os-bar { width: 100%; } .os-note { padding-left: 4px; margin-bottom: 8px; } }

/* ---- Short leadership notes (index cards) ---- */
.cards5 { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 1100px) { .cards5 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 700px) { .cards5 { grid-template-columns: minmax(0, 1fr); } }
.icard { background: var(--surface); border: 1px solid var(--line); padding: 20px; display: grid; grid-template-rows: auto 1fr auto; gap: 16px; min-height: 250px; position: relative; transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease); background-image: repeating-linear-gradient(transparent 0 27px, var(--line) 27px 28px); background-position: 0 50px; }
.icard:hover { border-color: var(--forest); transform: translateY(-2px); }
.icard::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: var(--forest); opacity: 0; }
.icard p { font-family: var(--f-serif); font-size: 21px; line-height: 28px; color: var(--ink); }
.icard .meta { background: var(--surface); }

/* ---- Principles ---- */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.pr { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 16px; padding: 24px 24px 24px 0; border-bottom: 1px solid var(--line); }
.pr:nth-child(odd) { border-right: 1px solid var(--line); }
.pr:nth-child(even) { padding-left: 24px; }
.pr .n { font-family: var(--f-serif); font-size: 44px; line-height: .9; color: var(--forest); font-weight: 400; }
.pr h3 { font-family: var(--f-serif); font-weight: 520; font-size: 25px; line-height: 1.2; letter-spacing: -.01em; }
.pr p { font-size: 15px; line-height: 1.55; color: var(--ink-2); margin-top: 8px; }
.pr .check { display: flex; gap: 10px; margin-top: 12px; font-family: var(--f-mono); font-stretch: 87.5%; font-size: 11px; color: var(--muted); align-items: baseline; }
.pr .check b { color: var(--forest); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: 9.5px; white-space: nowrap; }
@media (max-width: 860px) { .principles { grid-template-columns: minmax(0, 1fr); } .pr, .pr:nth-child(even) { padding: 20px 0; border-right: 0 !important; } .pr { grid-template-columns: 48px minmax(0, 1fr); } }

/* ---- Frameworks ---- */
.fw-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 1000px) { .fw-grid { grid-template-columns: minmax(0, 1fr); } }
.fw { background: var(--surface); border: 1px solid var(--line-strong); display: grid; grid-template-rows: auto 1fr auto; }
.fw-head { padding: 16px 18px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.fw-head h3 { font-family: var(--f-serif); font-weight: 520; font-size: 22px; line-height: 1.2; }
.fw-body { padding: 18px; overflow-x: auto; }
.fw-body svg { display: block; width: 100%; min-width: 560px; height: auto; }
.fw-foot { padding: 10px 18px; border-top: 1px solid var(--line); font-family: var(--f-mono); font-stretch: 87.5%; font-size: 10.5px; color: var(--muted); }
.fw-foot a { color: var(--forest); border-bottom: 1px solid currentColor; }

.week { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--line); min-width: 520px; }
.day { border-right: 1px solid var(--line); display: grid; grid-template-rows: auto 1fr; min-height: 230px; }
.day:last-child { border-right: 0; }
.day > .meta { padding: 8px 10px; border-bottom: 1px solid var(--line); text-transform: uppercase; letter-spacing: .08em; font-size: 10px; }
.day-body { position: relative; padding: 8px; display: grid; gap: 6px; align-content: start; }
.ritual { border: 1.5px solid var(--forest); background: var(--bg); padding: 7px 8px; display: grid; gap: 2px; font-size: 13px; line-height: 1.3; font-weight: 560; }
.ritual .meta { font-size: 10px; }
.ritual.deep { border-style: dashed; border-color: var(--line-strong); font-weight: 450; color: var(--muted); min-height: 120px; align-content: center; text-align: center; }
.ritual.lab { border-color: #15181A; background: var(--yellow); color: #15181A; }
.ritual.lab .meta { color: #15181A; }

.rights td:first-child { font-weight: 600; }
.rights .who { font-family: var(--f-mono); font-stretch: 87.5%; font-size: 12px; }
.rights .who.dec { color: var(--forest); font-weight: 600; }

/* ---- Photo essay ---- */
.photo-essay { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 12px; }
.photo-essay figure { display: grid; gap: 8px; }
.photo-essay figcaption { font-family: var(--f-serif); font-style: italic; font-size: 15px; line-height: 1.45; color: var(--muted); }
.pe-a { grid-column: 1 / span 7; } .pe-b { grid-column: 8 / span 5; align-self: end; }
.pe-c { grid-column: 1 / span 4; } .pe-d { grid-column: 5 / span 8; }
@media (max-width: 760px) { .photo-essay > figure { grid-column: 1 / -1 !important; } }

/* ---- Articles list ---- */
.alist { border-top: 2px solid var(--ink); }
.arow { display: grid; grid-template-columns: 120px minmax(0, 1fr) 150px 70px; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: baseline; transition: background var(--t-fast) var(--ease); }
.arow:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; text-decoration-color: var(--forest); }
.arow h3 { font-family: var(--f-serif); font-weight: 500; font-size: clamp(21px, 2.2vw, 28px); line-height: 1.2; letter-spacing: -.01em; }
.arow p { font-family: var(--f-serif); font-size: 16.5px; line-height: 1.5; color: var(--muted); margin-top: 6px; font-style: italic; }
.arow .tag { justify-self: start; }
@media (max-width: 760px) { .arow { grid-template-columns: minmax(0, 1fr); gap: 6px; } .arow .meta:last-child { display: none; } }

/* ---- Org changelog ---- */
.clog { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.clog > div { padding: 18px 18px 0 0; display: grid; gap: 8px; align-content: start; position: relative; }
.clog > div + div { padding-left: 18px; border-left: 1px solid var(--line); }
.clog > div::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--forest); }
.clog > div + div::before { left: 18px; }
.clog > div:last-child::before { background: var(--forest); }
.clog h4 { font-family: var(--f-serif); font-weight: 520; font-size: 19px; line-height: 1.25; margin-top: 8px; }
.clog p { font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.clog .why { font-family: var(--f-mono); font-stretch: 87.5%; font-size: 11px; color: var(--forest); line-height: 1.45; }
@media (max-width: 900px) { .clog { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 24px; } .clog > div:nth-child(3) { padding-left: 0; border-left: 0; } .clog > div:nth-child(3)::before { left: 0; } }
@media (max-width: 540px) { .clog { grid-template-columns: minmax(0, 1fr); } .clog > div, .clog > div + div { padding-left: 0; border-left: 0; } .clog > div + div::before { left: 0; } }

.ceo-sub-box { background: var(--forest); color: #F6F5F1; padding: 40px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.ceo-sub-box h2 { font-family: var(--f-serif); font-weight: 460; font-size: clamp(28px, 3.4vw, 42px); line-height: 1.1; }
.ceo-sub-box p { font-family: var(--f-serif); font-style: italic; font-size: 18px; opacity: .85; margin-top: 8px; }
.ceo-sub-box form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.ceo-sub-box input { background: #F6F5F1; color: #1E211F; border-color: #F6F5F1; }
.ceo-sub-box .btn { background: #1E211F; color: #F6F5F1; border-color: #1E211F; }
.ceo-sub-box .meta { color: #F6F5F1; opacity: .8; grid-column: 1 / -1; }
:root[data-theme="dark"] .ceo-sub-box { background: #1F3D30; }
@media (max-width: 800px) { .ceo-sub-box { grid-template-columns: minmax(0, 1fr); padding: 24px; } }